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See detailBiotechnolgia w rozrodzie koni
Deleuze, Stefan ULiege; Gajewski, Zdzislaw; Faundez, Ricardo et al

in Rozrod koni, Wybrane aspekty IV Monograph (2016)

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See detailHigh rate monitoring CH4 production dynamics and their link with behavioral phases in cattle
Blaise, Yannick ULiege; Lebeau, Frédéric ULiege; Andriamandroso, Andriamasinoro ULiege et al

in EAAP – 67 th Annual Meeting, Belfast 2016 (2016)

Microbial fermentation in the rumen produces methane (CH4) which is a loss of energy for ruminants and also contributes to global warming. While the respiration chamber is the standard reference for CH4 ... [more ▼]

Microbial fermentation in the rumen produces methane (CH4) which is a loss of energy for ruminants and also contributes to global warming. While the respiration chamber is the standard reference for CH4 emissions quantification, daily CH4 production dynamics can be measured only by steps of 30 min and measurements on pasture are impossible. The alternative method using SF6 as tracer gas can be applied for grazing animals but provides average CH4 production values over at least several hours, making it impossible to measure short term dynamics of rumen CH4 production with changing animal behavior along the day. Newly developed methods using CO2 as internal tracer gas extrapolate CH4 emissions from few short measurements. However, both CO2 and CH4 emissions fluctuate during the day depending on the behavior and the post-feeding times questioning the validity of this method. Therefore, an innovative device was developed to monitor at a high rate CH4 and CO2 emission dynamics in order to investigate the link between CH4 dynamics and the animal behavior on pasture. Preliminary results showed the ability of the device to record differences in CH4:CO2 ratios and eructation frequencies according to the individual and the behavior. Results from complementary experiments in barn with animals fed contrasting diets regarding CH4 production (with and without linseed) and on pasture with different forage allowance will be presented in order to highlight how post-feeding time and grazing behavior impact CO2 and CH4 emission dynamics along the day. [less ▲]

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See detailBridging familiarity and novelty detection: a matter of timing?
Delhaye, Emma ULiege; Barbeau, Emmanuel; Moulin, Christopher et al

in Proceedings of the 6th International Conference on Memory (2016)

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See detailThe ultimate role of the perirhinal cortex in familiarity: a novel hypothesis
Besson, Gabriel ULiege; Bastin, Christine ULiege

in Proceedings of the 6th International Conference on Memory (2016)

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See detailAn investigation of inland water soundscapes: Which sonic sources influence acoustic levels?
Bolgan, Marta ULiege; O' Brien, Joanne; Winfield, Ian J. et al

in Proceedings of meetings on acoustics Acoustical Society of America 27(1) (2016)

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See detailIs the venice lagoon noisy? First passive listening monitoring of the venice lagoon: Possible effects on the typical fish community
Bolgan, Marta ULiege; Picciulin, Marta; Codarin, Antonio et al

in Advances in Experimental Medicine and Biology (2016)

Three passive listening surveys have been carried out in two of the three Venice lagoon tide inlets and inside the Venice island. The spectral content and the intensity level of the underwater noise as ... [more ▼]

Three passive listening surveys have been carried out in two of the three Venice lagoon tide inlets and inside the Venice island. The spectral content and the intensity level of the underwater noise as well as the presence or absence of Sciaena umbra and the distribution of its different sound patterns have been investigated in all the recording sites. The passive listening proved to be successful in detecting S. umbra drumming sounds in both Venice lagoon tide inlets. Our results indicate that the spectral content and the level of underwater noise pollution in the Venice lagoon could affect fish acoustic communication. © Springer Science+Business Media New York 2016. [less ▲]

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See detailSupport for energy and comfort management in an office building using smart electrochromic glazing : dynamic simulations
Ajaji, Youness; Andre, Philippe ULiege

in Mathur, Jyotirmay; Garg, Vishal (Eds.) Proceedings of BS2015 : 14th conference of IBPSA (2016)

] In this research, we look for a control strategy of the electrochromic windows, depending on the measurement of the vertical outdoor illuminance and the outdoor temperature, for an efficient highly ... [more ▼]

] In this research, we look for a control strategy of the electrochromic windows, depending on the measurement of the vertical outdoor illuminance and the outdoor temperature, for an efficient highly glazed office building in Brussels. We simulate this building in TRNSYS. We implement a Perez model in TRNSYS to assess the vertical diffuse outdoor illluminance. As the building is equipped with a dimmable lighting system, we assess the average indoor illuminance. We simulate the switching dynamics of the elctrochromic window and we implement a control strategy. Finally, we evaluate the primary energy consumption due to HVAC and lighting, the risk of overheating and the average indoor illuminance. [less ▲]

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See detailIrrigated food systems in Maradi, Republic of Niger: a comparison between operating accounts
Andres, Ludovic ULiege; Dambo, Sambo; Baboussouna, Awal et al

in Kovacevic, Dusan (Ed.) VII International Scientific Agriculture Symposium “AGROSYM 2016”, Jahorina, October 06-09, 2016 : book of proceedings (2016)

In Niger, most food systems are based on pluvial crops (millet, sorghum and cowpea).However, during the last decade, agricultural policy and technical and financial partners focused on increasing the ... [more ▼]

In Niger, most food systems are based on pluvial crops (millet, sorghum and cowpea).However, during the last decade, agricultural policy and technical and financial partners focused on increasing the productivity of irrigated food products. The region of Maradi, located in the Centre-South of Niger, is an area traditionally dedicated to agriculture. Some parts of this region are particularly adapted for irrigation, especially the Goulbi of Kaba and the Goulbi of Maradi valleys. The goal of this study is to establish the socio-economic situation of the main irrigated food productions, based on the following indicators: (i) the crop management technics used; (ii) the results of the operating account; and (iii) the comparison between the village and the adoption of new technic (farmer field school). This paper is based on direct surveys conducted in three areas of the Maradi’s region: Soumarana (commune of Safo, department of Madarounfa); N’Yelwa (commune of Madarounfa, department of Madarounfa); Madarounfa (commune of Madarounfa, department of Guidan Roumdji). The software used is Minitab and Excel. The results highlighta good perspective for the irrigation system but this food system is conditioned by the petroleum price and some other input (fertilizer and seed). The operating accounts show that irrigation is a non-negligible income source, which increases the resilience of the farmers. [less ▲]

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See detailFranz Thedieck (1900-1995) und das Verhältnis zwischen Wissenschaft und Politik "von Weimar nach Bonn": eine biographische Annäherung
Brüll, Christoph ULiege

in Thomes, Paul (Ed.) Von der Narration zur Methode. Neue Impulse in der historischen Biographieforschung (2016)

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See detailLa nutrition néonatale – Pourquoi et comment l’optimiser tout en réduisant le risque d’entérocolite nécrosante
SENTERRE, Thibault ULiege; Jacob, Mathilde

in journée annuelle de conférences de l'association des Infirmiers Spécialisés en Pédiatrie et Néonatologie (2016)

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See detailDe l’Aurignacien au Gravettien dans le Nord-Ouest européen
Touzé, Olivier ULiege

in Chirica, Vasile; Ichim, Cristian (Eds.) Les Aurignaciens. Leur création matérielle et spirituelle (2016)

The study of the Early Upper Palaeolithic in Northwestern Europe faces several difficulties associated with the qualitative and quantitative state of the documentation. These limits constrain the ... [more ▼]

The study of the Early Upper Palaeolithic in Northwestern Europe faces several difficulties associated with the qualitative and quantitative state of the documentation. These limits constrain the precision of the analyses, though the study of this period benefits from a dynamic of research based on the preventive and programmed archaeologies, and the reappraisal of old collections. Recent data and current work on several sites demonstrate that Northwestern Europe can fully contribute to the discussions on this period, and in particular to the question of the transition between the Aurignacian and the Gravettian. Thus, we propose here an overview of the period extending from the Recent Aurignacian to the Early Gravettian, in order to propose some thoughts on this pivotal phase of the Upper Palaeolithic. During this particular period, the European Northwest indeed distinguishes itself by the appearance of the Maisierian, an original lithic tradition whose technical system, devoid of elements peculiar to the Aurignacian traditions, announces the development of Gravettian norms. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco
Chebli, Youssef ULiege; Chentouf, M.; Hornick, Jean-Luc ULiege et al

in Proceedings of the 12th International Conference on Goats (2016) (2016)

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change ... [more ▼]

In Rif Mountain of Morocco, sylvopastoral systems satisfy the diverse needs of local population and represent the most important feed sources for goats. This system is under pressure due to climate change and overgrazing. For a sustainable and integrated development of this area, it is essential to establish a resource assessment. This study aims to evaluate the pastoral production (biomass) and investigate the use of pasture in Rif Mountain (Loubar) exclusively used by goat herds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Cistus crispus, Cistus monspeliensis, Lavendula stoeches and Pistacia lentiscus, represent the most palatable species selected by goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a poor floristic diversity (65 species) dominated by shrubs. The biomass produced was estimated at 373 kg dry matter per hectare composed for 63% by shrubs. For biomass production, significant differences were observed depending on the season and according to sampling sites. The continuous use of the same pasture for a long time can explain the low production estimated and appearance of unpalatable species, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. In fact, due to the bad operating practices of pastoral resources, sylvopastoral areas will be less available and of lower quality. The reasonable use of these resources, including a reduction in grazing pressure, should be developed to ensure a better productivity and sustainability. [less ▲]

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See detailBispecial Factors in the Brun S-Adic System
Labbé, Sébastien ULiege; Leroy, Julien ULiege

in Brlek, Sre Vcko; Reutenauer, Christophe (Eds.) Developments in Language Theory: 20th International Conference, DLT 2016, Montréal, Canada, July 25-28, 2016, Proceedings (2016)

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See detailPerformance of the chicken contract farming and its affecting factors in Vietnam: a case study in Hoa Thach Commune, Quoc Oai District, Hanoi
Bui Thi, Nga; Lebailly, Philippe ULiege

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES) (Eds.) Proceedings International Conference "Agriculture Development in the Context of International Integration: Opportunities and Challenges". December 7-8, Hanoi, Vietnam (2016)

This study aims to analyze the performance and its affecting factors in the chicken contract farming in a case study of Hoa Thach commune, Quoc Oai province, Hanoi, based on the questionnaire surveyed ... [more ▼]

This study aims to analyze the performance and its affecting factors in the chicken contract farming in a case study of Hoa Thach commune, Quoc Oai province, Hanoi, based on the questionnaire surveyed data of 40 representative chicken contract farmers in the study site in 2016. The results showed that surveyed household’s head was medium (37 years old), low educational level (80% secondary school), but they had experience (87.5% had more than 3 years of raising), with quite large raising scale (popular 3001 to 5000 heads). Feed cost was too high (87.7% total cost), led farmers to lower performance, and situation of depending on the market. The farm income was rather low, accounted for only 10.4% total revenue. Results also showed that, any decrease in labor cost, improvement in by - products revenue or egg laying rate will lead to the enhancement of chicken raising performance for contract farmers. Therefore, the farmers had better reduced the feed cost, better manage their labor, exploit by- products and improve the egg laying rate to enhance the farm performance. [less ▲]

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See detailHousehold risk management strategies for coastal aquaculture risks: the case of clam farming in Thaibinh province, Vietnam
Ngo Thi Thu Hang, ULiege; Tran Huu, Cuong; Lebailly, Philippe ULiege

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES CCD) (Eds.) Proceedings "International conference on Agriculture development in the context of international integration: opportunities and challenges". 2016 ICOAD, December 7-8, Hanoi, Vietnam (2016)

Endowed with 3,260 km of coastal line and 112 estuaries, Vietnam has a high potential for aquaculture development. However, long coastal line is also embedded with natural high risks under climate changes ... [more ▼]

Endowed with 3,260 km of coastal line and 112 estuaries, Vietnam has a high potential for aquaculture development. However, long coastal line is also embedded with natural high risks under climate changes and sea level rise. Vietnam is ranked at the 18th in the 2015 world risk index and the vulnerability index of 50.9%. Relying on coastal resources, aquatic farmers have adopted a number of strategies to cope with aquaculture risks. By using the OECD holistic approach, this research used several tools to identify farmer's performance on clam farming practices and their risk management strategies (RMS) in Thaibinh province (the largest area of the clam production in the north and north central coastal part of Vietnam). RSMs are found of diversification and flexibility among farmers. For production risks, the RSMs are: (1) enlarging clam raising size and (2) actively controlling clam production by experience and technical innovations. For market risks, the RSM is searching for more clam market channels in both input and output market. For financial risks, RSMs are (1) securing family from clam farming loss by diversifying livelihood activities and (2) accessing secure financial sources in term or interest and bond conditions. Although some RSMs had resulted positive impacts but in overall, the clam farming risks have not managed well by those strategies due to the limitation in capacity of households comparing with level of risks. To cope better with different risks in clam sector, besides the adjustment in RSMs of farmers themselves, it is necessary to have the intervention from government (from national to local level) to address the aquaculture risks which the farmers cannot handle by themselves, such as (1) addressing the issue of polluted wastewater to the clam field; and (2) more focusing in supporting farmer in linkages to the both formal financial market and output market. In addition, supports for technical training targeting on improving farmer's skills and knowledge in farming decision making and market information is also of high value to clam farmers in coping with farming risks. [less ▲]

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See detailContract Farming as a Determinant of Promoting Tea Marketing Channel for Small Producers in Phu Tho Province
Le Thi Kim, Oanh ULiege; Vu Dinh, Ton; Tran Huu, Cuong et al

in Global Business Research Journals (GBRJ) (Ed.) Proceedings of the Doctoral Research Conference in Business Studies & Management Sciences (2016)

Making contracts between farmers and firms (contract farming, for short) plays an important role in establishing access to the agricultural markets for the small producers, especially in the developing ... [more ▼]

Making contracts between farmers and firms (contract farming, for short) plays an important role in establishing access to the agricultural markets for the small producers, especially in the developing and less developed countries. It is argued that contract farming provides farmers with the assured sale of their crops and agro-business firms with a steady supply of agricultural products required by the market. This paper focuses on analyzing benefits of tea producers through signing contract with firms. By using relevant research methods of verifying studying areas, making Participatory Rural Appraisal (PRA), and surveying farmers, the paper finds that although contract farmers receive lower fresh tea price in compared with the price received by non-contract farmers, they would have higher price stability and are provided with market guarantee mechanism. These benefits are really important in context of globalization and market liberalization with the demand for high quality and high value products. It is highly recommended that small farmers therefore should participate in the coordination model between farmers and firms in the process of tea production and marketing in Phu Tho Province, Vietnam. [less ▲]

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See detailBiomass production and use of silvopastoral areas in the Rif Mountains of Morocco
Chebli, Youssef ULiege; Chentouf, Mouad; Hornick, Jean-Luc ULiege et al

in Casasus, I.; Lombardi, G. (Eds.) Mountain pastures and livestock farming facing uncertainty: environmental, technical and socio-economic challenges (2016)

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in ... [more ▼]

In Northern Morocco, the forest rangelands provide goods and services, which satisfy the diverse needs of local population. These silvopastoral areas represent the most important feed sources for goats in the Rif Mountain. This study aims to evaluate the biomass production and investigate the use of a silvopastoral area (Derdara) exclusively used by goatherds. For biomass production, we used the method of the reference module. A survey on using pasture by breeders was realized during the biomass evaluation period. The pastoral shrubs, mainly Arbutus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavandula stoeches and Mentha pulegium, represent the fundamental diet for goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by a diversity average level of pastoral flora (94 species) dominated by shrubs. The biomass produced was estimated at 1867 kg dry matter per hectare composed for 74% by shrubs. Significant differences were observed concerning the intensity of the canopy cover, depending on the season and according to sampling sites. The continuous use of the same pasture for a long time, can explain the appearance of low pastoral value species in the study area, such as Arisarum vulgare, Daphne gnidium and Ranunculus sardous. The reasonable use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailBiomass production and use of silvopastoral areas in northern Morocco: A case study of western Rif
Chebli, Youssef ULiege; Chentouf, M.; Hornick, Jean-Luc ULiege et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to ... [more ▼]

In northern Morocco, silvopastoral areas provide diverse needs for local population and livestock. These pasture represent the most important feed sources for goats in Rif Mountain. This study aims to evaluate biomass production and investigate the use of a silvopastoral area in two representative pastoral areas (Derdara and Loubare) exclusively used by goatherds. For biomass production, we used the method of the reference module. The surveys, on using pasture by breeders, were realized during the biomass evaluation period. The pastoral shrubs, mainly Arbustus unedo, Cistus crispus, Cistus monspeliensis, Erica arborea, Lavendula stoeches and Mentha pulegium, are the main diet of goats. Breeders use pasture throughout the year, except on rainy days where they resort to limbing. The pasture was characterized by an average level of diversity of pastoral flora in Derdara (94 species) and poor floristic diversity in Loubare (65 species) dominated by shrubs . The phytomass productions at Derdara and Loubare were estimated at respectively 1867 kg and 373 kg for dry matter per hectare. The continuous use of pastoral resources and lack of pasture management has considerably reduced the palatable pasture species and has allowed the appearance of low pastoral value species. Statistically significant differences were observed depending on season, with a maximum in the spring and a minimum in the winter, and according to sampling sites are differentiating by intensity of canopy cover. Management actions and use of silvopastoral resources, including a reduction in grazing pressure, should be developed to ensure better productivity and sustainability of these resources. [less ▲]

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See detailZola in Sciascia: Una nota su Candido (1977) e sul corpo
Curreri, Luciano ULiege

in Baldassarri, Guido (Ed.) I cantieri dell’italianistica. Ricerca, didattica e organizzazione agli inizi del XXI secolo. (2016)

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See detailUse of new technology to estimate the grazing behavior of goats in northern morocco
Chebli, Youssef ULiege; Chentouf, M.; Cabaraux, Jean-François ULiege et al

in Proceedings of the 3nd FARAH Day, Faculty of Veterinary Medicine (2016) (2016)

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly ... [more ▼]

In northern Morocco, goats are exclusively or partially conducted in extensive farming systems in which most nutrients from forest pastures. Grazing is associated with daily activities significantly different from those of animals in confinement, such as grazing behavior and distance. Currently, new techniques have been proposed to characterize the feeding behavior of goats on rangelands and throughout the day. These measures are now determined mainly by GPS collars and IceTag, which are used to monitor activity,location and movement in grazing areas. This study was conducted in two representative pastures (Derdara and Loubare) in western Rif. The study concerned the characterization of movement of goats on a silvopastoral pasture through using new technology. GPS collars have allowed us to estimate a distance travelled at 8 km for 10 hours of grazing per day. With IceTag (attached to a rear leg of goat), we estimated the number of steps and time spent standing, lying , and active. IceTags and GPS collars data was used simultaneously to estimate times spent grazing/eating, as well as other behaviors. The study also revealed that the goats consumed mainly of palatable vegetation at ground level. The intersection of several parameters of pastoral assessment with the study of feeding behavior of goats on rangelands will allow us in future to manage better the herd in time and space. [less ▲]

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See detailLa régionalité lexicale du moyen français (1350-1500) dans le DMF
Renders, Pascale ULiege

in Glessgen, Martin; Trotter, David (Eds.) La régionalité lexicale au Moyen Âge. Colloque international en l’honneur du 70e anniversaire de Gilles Roques (2016)

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See detailSimultaneous Water Vapor and Dry Air Optical Path Length Measurements and Compensation with the Large Binocular Telescope Interferometer
Defrere, Denis ULiege; Hinz, P.; Downey, E. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2016)

The Large Binocular Telescope Interferometer uses a near-infrared camera to measure the optical path length variations between the two AO-corrected apertures and provide high-angular resolution ... [more ▼]

The Large Binocular Telescope Interferometer uses a near-infrared camera to measure the optical path length variations between the two AO-corrected apertures and provide high-angular resolution observations for all its science channels (1.5-13 microns). There is however a wavelength dependent component to the atmospheric turbulence, which can introduce optical path length errors when observing at a wavelength different from that of the fringe sensing camera. Water vapor in particular is highly dispersive and its effect must be taken into account for high-precision infrared interferometric observations as described previously for VLTI/MIDI or the Keck Interferometer Nuller. In this paper, we describe the new sensing approach that has been developed at the LBT to measure and monitor the optical path length fluctuations due to dry air and water vapor separately. After reviewing the current performance of the system for dry air seeing compensation, we present simultaneous H-, K-, and N-band observations that illustrate the feasibility of our feedforward approach to stabilize the path length fluctuations seen by the LBTI nuller. [less ▲]

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See detailRice and shrimp farming in the Xuan Thuy National Park: sustainable and unsustainable practices
Nguyen Thi Trang Nhung, ULiege; Lebailly, Philippe ULiege; Tran Huu, Cuong

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES) (Eds.) Proceedings International Conference "Agriculture Development in the Context of International Integration: Opportunities and Challenges". December 7-8, Hanoi, Vietnam (2016)

Agricultural and aquaculture patterns in Xuan Thuy National Park mainly consists of rice planting and shrimp aquaculture (intensive and semi-intensive). Currently, there are about 11,899 rice households ... [more ▼]

Agricultural and aquaculture patterns in Xuan Thuy National Park mainly consists of rice planting and shrimp aquaculture (intensive and semi-intensive). Currently, there are about 11,899 rice households covering 1,873.07 ha, 215 semi-intensive shrimp households occupying 1,730.7 ha and 40 intensive households amounting to 90 ha in the Ramsar site. The local farmers produce 14,411 ton of rice, 450 ton of intensive shrimp and 516 tonof semi-intensive shrimp. Thus, rice and shrimp contribute significantly to local food basket and economy but it is overshadowed by environmental concerns. This paper aims to focus on reviews how farmers practice rice and shrimp at the international important location. It finds some inappropriate management practices regarding to monoculture, use of fertilizer, pesticide, antibiotic and other drugs, and water effluent systems. In addition, almost of respondents aware of water discharge from rice areas after spraying pesticide is the most serious constraint for their shrimp and the effluent from shrimp ponds make pollution for the environment. Lesson learned from review are considered in the context of recommendations to apply effective management measures to mitigate the unsustainable practices. [less ▲]

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See detailThe dynamic pathways of agrarian change in the Red River Delta of Vietnam
Nguyen Thi Minh Khué, ULiege; Nguyen Thi, Dien; Lebailly, Philippe ULiege

in Vietnam National University of Agriculture (VNUA); Académie de Recherche et d'Enseignement Supérieur (ARES) (Eds.) Proceedings International Conference "Agriculture Development in the Context of International Integration: Opportunities and Challenges". Vietnam National University of Agriculture, December 7-8, 2016, Hanoi, Vietnam (2016)

Even though agricultural production has not been the main source of income for rural households in Red River Delta, yet farming remains an important livelihood and security for many rural people. The ... [more ▼]

Even though agricultural production has not been the main source of income for rural households in Red River Delta, yet farming remains an important livelihood and security for many rural people. The empirical findings from fieldwork in a village in the Red River Delta of Vietnam show how dependence on agriculture is determined by family context, including land, education and job of household members, their gender and age. Most educated young people have successfully found employment opportunities outside in the village as migratory wage labour, and have capacity to attain higher social status and become rural entrepreneurs. While less educated and older villagers consider agriculture as a more favorable alternative and valuable security. Besides, maintenance agricultural production at reasonable level and return to traditional cultivation is also considered as a rural household strategy coping with food security in industrialization and rural-urban linkage. Diverse and special extended livelihoods are contributed by historical, cultural and economic specificities which are conditioned for rural transformation. [less ▲]

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See detailLes formations à silex dans le sud de la France : élaboration en multipartenariat d’une base de données géoréférencées, premiers résultats
Fernandes, Paul; Tuffery, Christophe; Raynal, Jean-Paul et al

in Tomasso, Antonin; Binder, Didier; Martino, Gabriele (Eds.) et al Ressources lithiques, productions et transferts entre Alpes et Méditerranée (2016)

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See detailThe study of ornament and the shaping of a new architecture in 19th century Belgium
Prina, Daniela ULiege

in James-Chakraborty, Kathleen (Ed.) Proceedings Of The Fourth International Conference Of The European Architectural History Network (2016)

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See detailGain Adaptation for Continuous Sliding Mode Control
Cho, Hancheol ULiege

in 2016 2nd International Conference on Control Science and Systems Engineering (ICCSSE), Singapore 27-29 July 2016 (2016)

In this paper a novel adaptive sliding mode controller design is presented for robust control of nonlinear uncertain systems. A continuous control law to compensate for the uncertainties is first ... [more ▼]

In this paper a novel adaptive sliding mode controller design is presented for robust control of nonlinear uncertain systems. A continuous control law to compensate for the uncertainties is first developed that is completely free from chattering. Focusing on the relation between the tried gain value and the resultant sliding variable, a new method for estimating the uncertainty bounds is then derived, leading to an adaptive law for gain-tuning by which the error eventually lies within a user-specified region in a finite time. Unlike other existing approaches, the new adaptive rule only requires the magnitude of the control input in the previous time step, which greatly eases the application of the proposed algorithm to real-world systems. An inverted pendulum system is simulated to demonstrate the accuracy and effectiveness of the proposed control strategy. [less ▲]

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See detailUne plateforme collaborative pour soutenir la communication des personnes présentant un trouble du spectre de l’autisme : première évaluation fonctionnelle par des orthophonistes.
Grevesse, Pascale ULiege; dor, Orianne; Maillart, Christelle ULiege

in Joyeux, Nathalie; Topouzkhanian, Sylvia (Eds.) ORTHOPHONIE ET TECHNOLOGIES INNOVANTES (2016)

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See detailFrom the spirit to the letter of the charters : mind the gap for the future
Houbart, Claudine ULiege; Dawans, Stéphane ULiege

in Szmygin, Bogusław (Ed.) Heritage in Transformation. Cultural heritage Protection in XXI century. Problems, Challenges, Predictions (2016)

Since the 1960’s and the foundation of ICOMOS, charters have been considered as a sort of conservation gospel. In this presentation, we would like to question this fact, in the light of the very ... [more ▼]

Since the 1960’s and the foundation of ICOMOS, charters have been considered as a sort of conservation gospel. In this presentation, we would like to question this fact, in the light of the very particular production and reception conditions of the documents. What may be perceived as a mostly provocative approach seems to us a constructive basis for future reflections. When we read and use charters – in this presentation, we will mainly focus on the Venice Charter, the Nara document and the Riga Charter – , we forget too often that they have been written by human beings, sometimes very tired, in a hurry, and even arguing with each other. The study of the archival material related to the writing of the Venice Charter and the Nara document very clearly illustrates that these documents are rather a conceptual “bricolage” than indisputable normative texts as if they had been written by lawyers. In the case of the Venice Charter, the archive as well as the records of Raymond M. Lemaire, Paul Philippot or Gertrud Tripp make clear that the document has been written at the last moment and adopted too rapidly by an assembly too glad to finally have a updated version of the Athens charter. As a consequence, only a few years later, Raymond Lemaire and Piero Gazzola already questioned the validity of the new text in the light of the extension of heritage debates to the city centers. On the other hand, the fact that a French and an English version of the Nara document were written in parallel by Raymond M. Lemaire and Herb Stovel in 1994 has had immediate consequences on the content and the formulation of the text, which logically left both of them unsatisfied with the result. Even so, the Venice charter and the Nara document still have force of law today. Yet, besides the particular circumstances of their writing, we must keep in mind that these texts answered specific questions, closely linked to the context: a critical answer to postwar reconstruction for the first, and apparently opposed visions of authenticity between East and West for the second. As far as the Riga charter is concerned, the influence of the delicate context of the Eastern bloc collapse is evident. For this reason, using such documents today requires at least a critical reading, going back to the spirit beyond the text. Our presentation will illustrate ad absurdum, through recent case studies, how a cynical reading of such documents can lead to interventions dangerously in conflict with this spirit and the fundamental ideals of conservation philosophy. In the era of late capitalism and heritage globalization, are we allowed to forget the conditions and the context in which our doctrinal documents have been written to justify anything and everything and to meet, for example, the “tourist gaze”, the “nouveaux riches” taste or the architect’s egomania? Do architects really want to know what the writers of the Venice charter’s article 9 meant by the “contemporary stamp”? What are the limits of the tolerance towards reconstruction first expressed by the Nara document, and a few years later, the charter of Riga? So many questions that ICOMOS must face if it wants to pursue its guiding mission in a mostly financial world. [less ▲]

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See detailSymboles et abréviation chrétiens dans les papyrus littéraires grecs à contenu profane (IVe-VIIe siècles)
Carlig, Nathan ULiege

in Derda, Tomasz; Urbanik, Jakub; Lajtar, Adam (Eds.) Proceedings of the 27th International Congress of Papyrology, Warsaw 29.07—3.08 2013 (2016)

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See detailA quantitative approach to the concept of concrete repair compatibility
Bissonnette, Benoît; Modjabi-Sangnier, François; Courard, Luc ULiege et al

in Dehn, Frank; Beushausen, Hans (Eds.) Concrete Repair, Rehabilitation and Retrofitting IV (2016)

The work reported in this paper is part of a wider research program intended to provide the repair industry with improved fundamental knowledge to implement rational design methods and rules for repairs ... [more ▼]

The work reported in this paper is part of a wider research program intended to provide the repair industry with improved fundamental knowledge to implement rational design methods and rules for repairs. In that regard, there is a strong need to study the fundamental relationships and parameters that underlie the repair compatibility concepts, in particular those relating to dimensional compatibility. In the first part of the paper, classical formulas derived for thick cylindrical specimens were used to analyze the tensile stress buildup in annular restrained shrinkage test specimens, taking into account the restraining conditions the investigated ring test method and the individual concrete properties/phenomena determined experimentally (elastic modulus, creep coefficient, drying shrinkage deformation). By comparing the ring test results with the calculated tensile stresses, the validity and accuracy of the theoretical approach could be appraised. A quantitative approach for the evaluation of the performance of concrete repair in terms of dimensional compatibility was then developed. Derived from the basic strain balance approach (ratio between the total deformability in tension and the drying shrinkage deformation), a parameter referred to as dimensional compatibility index (CI) was introduced in order to analyze the evolution of dimensional compatibility as a function of time for a given concrete mixture, taking into account the actual degree of restraint in the element. Compatibility index evolution curves were calculated for various repair concrete mixtures in order to highlight material behavior relating to composition parameters and temperature. As it requires the evaluation of a limited number of individual properties that are for most readily available (i.e. strength, elastic modulus, shrinkage), the compatibility index expressed in terms of deformation carries a lot of potential as a relatively simple and convenient analytical tool for assessing the cracking sensitivity of concrete repair materials. Overall, it can be stated that a good correlation was found between the ring test results and the tensile stress values calculated based on individual concrete properties / phenomena and that the proposed calculation method lays ground for evaluating quantitatively the dimensional compatibility of repair materials and defining suitable performance criteria. [less ▲]

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See detailA repair quality control with elastic waves based methods vs. substrate quality
Garbacz, Andrzej; Piotrowski, Tomasz; Courard, Luc ULiege et al

in Dehn; Beushausen, Hans (Eds.) Concrete Repair, Rehabilitation and Retrofitting IV (2016)

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important ... [more ▼]

An adhesion in repair system is one of the most important factors that affect the repair efficiency. The elaboration of reliable nondestructive method for an adhesion mapping is one of the most important tasks. A majority of NDT methods mentioned in EN 1504-10 and ACI Concrete Repair Manual for assessment of concrete structures are based on propagation of stress waves. However, these investigations are rarely focused on evaluation of bond strength. Repair system is difficult to test with NDT methods because of many factors influencing stress wave propagation. In this paper the effect of a quality of concrete substrate on propagation of stress waves in repair system and their influence on possibility of estimation of the bond strength is discussed. [less ▲]

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See detailMicrosyntaxe et macrosyntaxe des lexèmes _chaitif_, _dolent_, _las_ et _maleuré/maleureus_ en français médiéval. De l'adjectif au locutif
Mazziotta, Nicolas ULiege

in Actes du 5e Congrès Mondial de Linguistique Française (CMLF) (2016)

This paper investigates the syntax of the following medieval French lexemes: chaitif, dolent, las and maleuré/maleureus. The theoretical framework takes into account micro- and macrosyntax. The lexemes at ... [more ▼]

This paper investigates the syntax of the following medieval French lexemes: chaitif, dolent, las and maleuré/maleureus. The theoretical framework takes into account micro- and macrosyntax. The lexemes at study can be used as adjectives as well as locutives, i.e. words belonging to a POS that has a very constrained microsyntactic distribution and carrying a specific illocutionary point. The latter characteristics implies that locutives cannot be governed by other words in a syntactic dependency structure. The syntactic analysis of the locutive uses of the aforementionned lexemes leads to consider them as "advocate" illocutionary units that undergo special constraints on their linear order. [less ▲]

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See detailThermal and visual comfort under different trees cover in urban spaces at Constantine city centre - hot and dry climate
LOUAFI BELLARA, Samira; ABDOU, Saliha; Reiter, Sigrid ULiege

in La Roche, Pablo; Schiler, Marc (Eds.) Proceedings of the 32nd International Conference on Passive and Low Energy Architecture. PLEA 2016 : "Cities, Buildings, People: Towards Regenerative Environments" (2016)

In urban environments, vegetated spaces have proven to act as ameliorating factors of some climatic features related to heat stress, reducing their effects and providing comfortable outdoor settings for ... [more ▼]

In urban environments, vegetated spaces have proven to act as ameliorating factors of some climatic features related to heat stress, reducing their effects and providing comfortable outdoor settings for people. The consideration of the thermal and visual outdoor conditions in cities is increasingly important for the well-being of man and the use of public spaces. Tree shaded areas can reduce the heat effect by amelioration of microclimate and human outdoor thermal comfort. The objective of this research is to investigate thermal and visual comfort and perception in tree shaded area in open urban spaces and to compare the performance of areas shaded by different types of tree coverage, including an open area without vegetation, located in a hot and dry climate. The methodology is based on a combination of an investigation conducted by structured interview, microclimate measurement. Measurements of air temperature, air humidity, wind speed, solar global radiation, luminance and the sky view factor combined with comfort surveys were performed during summer in different areas in the city center of Constantine in Algeria (a hot and dry climate). The results indicate that the percentage of tree coverage of a space is a highly important metric to assess outdoor comfort in a hot-dry climate and that it influences mainly the use of outdoor recreational areas. Dense vegetation cover optimises the microclimatic environment for pedestrians' thermal and visual comfort in urban spaces, under these climatic conditions. [less ▲]

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See detailDiscours et stratégies dans les déclarations criminelles élaborées devant les notaires liégeois aux XVIIe et XVIIIe siècles
Drécourt, Aurore ULiege

in Dire, (d)écrire, représenter la violence, Colloque international du CRIHAM (2016)

Le présent projet de communication propose une étude sur la manière de représenter la violence ainsi que son instrumentalisation à des fins personnelles dans des actes relevant de la pratique notariale ... [more ▼]

Le présent projet de communication propose une étude sur la manière de représenter la violence ainsi que son instrumentalisation à des fins personnelles dans des actes relevant de la pratique notariale aux XVIIe et XVIIIe siècles à Liège. L’analyse de ces sources est novatrice pour une histoire de la criminalité. En effet, les historiens se sont avant tout centrés sur les archives des cours judiciaires. Il semble cependant que les populations d’Ancien Régime n’allaient pas systématiquement devant le juge pour régler leurs conflits. Ainsi des accords, qui ne seraient sans doute jamais parvenus à la connaissance de l’historien par la seule étude des archives criminelles, émergent dans les actes relevant de la pratique notariale. Outre ces accommodements clairement identifiés dans les minutes, les populations d’Ancien Régime se déplacent également devant notaires pour que ceux-ci retranscrivent, plus ou moins fidèlement, le récit subjectif d’un évènement vécu. Ces déclarations criminelles seront ensuite, selon le choix du comparant, enregistrées ou non au greffe. En effet, cette trace d’accusation ou de témoignage ne parvient pas systématiquement aux autorités. Tout dépend de l’évolution du conflit et parfois le simple déplacement chez le notaire pousse la partie adverse à s’accommoder avant le passage en justice. Ces déclarations criminelles constituent des sources particulièrement intéressantes pour observer la psychologie, les perceptions et les interprétations de la violence des victimes et des agresseurs. Nous proposons ici d’étudier les stratégies discursives mises en œuvre lors de la passation d’une déclaration devant le notaire et sur ce qu’elles révèlent de la société qui les produit. En effet, ces témoignages constituent une véritable mise en scène de la violence, qui est instrumentalisée afin d’obtenir gain de cause lors d’un conflit. Comment les comparants s’y prennent-ils ? Quels sont les topoï les plus souvent utilisés ? Observe-t-on une évolution de ces discours entre le XVIIe et le XVIIIe siècle ? Cette analyse permettra de mettre en lumière la manière dont la société attribuait différents seuils de gravité à des actes violents, leurs circonstances aggravantes et comment ces représentations de la société étaient sciemment utilisées par les intervenants pour déconstruire la gravité de leurs actes. Enfin, étudier la violence et les discours des personnes impliquées permet également une meilleure compréhension de phénomènes sociaux que nous proposons de souligner, comme l’importance de l’honneur et sa place essentielle dans la société d’Ancien Régime. [less ▲]

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See detailUSING TDU-GC-MS TO INVESTIGATE THE VOCS EMISSION OF BRASSICA NAPUS L. PLANTLETS CULTIVATED IN VITRO AND EXPOSED TO CADMIUM ABIOTIC STRESS.
Durenne, Bastien ULiege; Blondel, Alodie; Druart, Philippe et al

in 40th ISCC and 13th GCxGC Symposium Abstracts book (2016)

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See detailLa signature dans les lettres du duc de Bourgogne Philippe le Bon
Dumont, Jonathan ULiege; Marchandisse, Alain ULiege

in Dumézil, Bruno; Vissière, Laurent (Eds.) Epistolaire politique II : « Authentiques et autographes (IVe–XVIe siècles) » (2016)

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See detailL'usage de la signature par les premiers ducs de Bourgogne de la Maison de Valois
Marchandisse, Alain ULiege; Schnerb, Bertrand

in Feller, Caludia; Lackner, Christian (Eds.) Manu propria. Vom eigenhändigen Schreiben der Mächtigen (13.-15. Jahrhundert) (2016)

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See detailThe soundscape of a mussel farm: Biophony and man-made noise levels
Picciulin, Marta; Colla, Silvia; Pranovi, Fabio et al

in Proceedings of meetings on acoustics Acoustical Society of America 27(1) (2016)

During the summer of 2015, four Passive Acoustic Monitoring (PAM) surveys were carried out over a mussel farm in the Venetian (Italy) littoral zone at night-time hours. A qualitative and quantitative ... [more ▼]

During the summer of 2015, four Passive Acoustic Monitoring (PAM) surveys were carried out over a mussel farm in the Venetian (Italy) littoral zone at night-time hours. A qualitative and quantitative analysis of the soundscape was carried out. The high frequencies component of the soundscape (i.e above 2 kHz) was dominated by snapping shrimps sounds, while the low frequency component (i.e. below 2 kHz) was characterized by fish vocalization, mainly emitted by Sciaena umbra (Sciaenidae), with less frequent occurrences emitted by Gobidae spp. S. umbra highest vocal activity was recorded from June to August inside the mussel farm. The low frequency component of the soundscape was dominated by boat noise; in particular, low frequency noise (i.e. below 4 kHz) emitted by commercial ships and passenger cruises. The Acoustic Complexity Index (ACI) was found to increase concurrently with the number of S. umbra vocalizations: ACI highest values corresponded with S. umbra chorus recorded during July. The results of this study suggest that the mussel farm may function as a Fishery Aggregated Device (FAD), where fish might utilize it for different ecosystem services. Despite this, man-made noise was present in most of the acoustic samples, suggesting a potential impact on the local fauna [less ▲]

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See detailEn tous quartiers ou j’ay esté. Le récit de pèlerinage de Georges Lengherand, mayeur de Mons (1486–1487) : une esquisse
Bruwier, Marie-Cécile; Docquier, Gilles; Marchandisse, Alain ULiege

in Docquier, Gilles; Marchandisse, Alain (Eds.) Pays bourguignons et Orient : diplomatie, conflits, pèlerinages, échanges (XIVe–XVIe siècles) (2016)

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See detailLe référentiel Matières Premières de l’Arc Liguro-Provençal (MP-ALP) : ressources siliceuses entre Vallée du Rhône et Apennins
Tomasso, Antonin ULiege; Binder, Didier; Martino, Gabriele et al

in Tomasso, Antonin; Binder, Didier; Martino, Gabriele (Eds.) et al Ressources lithiques, productions et transferts entre Alpes et Méditerranée (2016)

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See detailNuovi studi sull'Epigravettiano di Isola Santa e della Toscana Settentrionale
Dini, Mario; Tomasso, Antonin ULiege; Tozzi, Carlo

in La Garfagnana. Società, cultura materiale e sviluppo del territorio (2016)

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See detailLa littératie: un cadre d'analyse au service du développement professionnel des enseignants
Schillings, Patricia ULiege

in Godenir, Anne; Vanesse-Hannecart, Marianne (Eds.) Actes. Enseignement et apprentissage de la lecture-écriture: les garants de la participation citoyenne (2016)

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See detailIntentions d'implémentation et procrastination chez les étudiants.
Stassart, Céline ULiege; Potdevin, Benoit; Etienne, Anne-Marie ULiege

in Évolutions sociales, innovations et politiques: Nouvelles questions et nouveaux enjeux pour la psychologie de la santé, Actes du Congrès de l’AFPSA, tome 2, (2016)

Introduction : La procrastination est définie comme une tendance à reporter ce qui est nécessaire pour atteindre un objectif. Ainsi, la procrastination concerne une intention qui ne se traduit pas en ... [more ▼]

Introduction : La procrastination est définie comme une tendance à reporter ce qui est nécessaire pour atteindre un objectif. Ainsi, la procrastination concerne une intention qui ne se traduit pas en action. L’intention d’implémentation se définit notamment à travers le désengagement face au problème, l’orientation vers les buts, et l’activation des ressources et cette étude examine la part explicative de ces trois dimensions dans le processus de procrastination. Méthodologie : Un échantillon de 197 étudiants ont complété les versions françaises du Solution Focused Inventory (SFI), et du Procrastination Assessment Scale for Students (PASS). Résultats : L’intention d’implémentation intervient dans 32% de la variance de la procrastination. Le désengagement face au problème et l’orientation vers les buts expliquent de manière significative la fréquence de procrastination.  Conclusion : Le processus de procrastination pourrait en partie être expliqué par manque d’intentions d’implémentation, plus particulièrement par une difficulté à se désengager du problème (tendance à être bloqué dans sa réflexion en se focalisant davantage sur les problèmes) et à s’orienter vers les buts (présenter des difficultés à mettre au point des plans d’action efficaces). [less ▲]

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See detailTowards an “integrated conservation” : the contribution of R.M. Lemaire and Piero Gazzola during the first decade of ICOMOS (1965-1975)
Houbart, Claudine ULiege

in Szmygin, Bogusław (Ed.) Heritage in Transformation. Cultural Heritage Protection in XXI century. Problems, challenges, predictions (2016)

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success ... [more ▼]

Respectively elected first President and first Secretary General during the first general assembly of ICOMOS in Cracow in 1965, Piero Gazzola and Raymond M. Lemaire have deeply contributed to the success of the newly born organisation. During the first years, they didn’t only provoke the creation of numerous national committees around the world, but they also positioned ICOMOS as a major actor of the international conservation scene, through the organisation of conferences and an active participation in the debates initiated by Unesco and the Council of Europe, for which ICOMOS acted as a consultant. The study of Raymond M. Lemaire’s archive, kept at the KU Leuven in Belgium, clearly shows that one of the major concerns of both Lemaire and Gazzola, who had been, in 1964, amongst the main authors of the Venice Charter, was to broaden the scope of the document in order to address the issue of pre-industrial city centres, threatened by late reconstruction or development projects mostly promoting functionalist approaches. Depending on the time available, this presentation will address one or various aspects of Lemaire’s and Gazzola’s contribution to the emergence of integrated conservation, consecrated by the European Charter and the Amsterdam Declaration of 1975, that is: the new ideas (social value of heritage for example) developed during the expert meetings organised by the Council of Europe in 1965-1968, where they both represented ICOMOS. These ideas are synthesised in the report “Saving the face of Europe” in 1973, the relation between these theoretical contributions and Lemaire and Gazzola’s contemporary field experience, the role of Eastern Europe experiences (D. Libal in Prague and M. Horler in Budapest) in the development of an appropriate methodology to address urban issues, the differences between the concept of “integral planning” proposed by Lemaire in 1973 and the “integrated conservation” that was promoted by the 1975 Council of Europe charters, an epilogue could mention the revision projects of the Venice Charter between 1975 and 1981. Based on my PhD about R.M. Lemaire, recently presented at the KU Leuven (Belgium), this presentation aims at clarifying and illustrating the shift from monument restoration towards city “reanimation” or “rehabilitation” during the late sixties and seventies, as well as paying tribute to the action of two of the most important figures of the beginnings of ICOMOS. [less ▲]

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See detailDeterminants of rice production in remote areas of Vietnam: a case study in Lao Cai province
Bui Thi Lam, ULiege; Lebailly, Philippe ULiege; Tran Huu, Cuong

in Académie de Recherche et d'Enseignement Supérieur (ARES); Vietnam National University of Agriculture (VNUA) (Eds.) Proceedings International Conference "Agriculture Development in the Context of International Integration: Opportunities and Challenges". December 7-8, 2016, Vietnam National University of Agriculture, Hanoi, Vietnam (2016)

Seng Cu rice, a special product in the Northwestern region of Vietnam, provides high economic value and it is one of the main crops for poverty reduction and rural development. Lao Cai, a moutainous ... [more ▼]

Seng Cu rice, a special product in the Northwestern region of Vietnam, provides high economic value and it is one of the main crops for poverty reduction and rural development. Lao Cai, a moutainous province, has various natural advantages for growing Seng Cu rice such as soil, climate, water resource and so on. However, Seng Cu rice production are facing with several challenges including: (i) low investment; (ii) poor farming practices; (iii) weak linkages between farmers and input/output suppliers; (iv) lack of supporting services regarding to agricultural extension and technology; (v) poor economic infrastructure. The main reasons mentioned above caused to low productivity produced at 60% of the potential, low income and high poverty rate at 50%, especially in upland communes the province. Besides, smallholder farmers have high levels of food insecurity and unsustainable livelihood. This paper aims to review the reasons why smallholder farmers in the region fail to plant Seng Cu rice. Then, various recommendations will be proposed to increase productivity and price for smallholders to improve incomes and living standard for the local farmers. [less ▲]

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See detailDisrupted interaction between memory and self in patients with Alzheimer’s disease
Genon, Sarah ULiege; Salmon, Eric ULiege; Collette, Fabienne ULiege et al

in Proceedings of the 6th International Conference on Memory (2016)

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See detailStochastic stability of a rotational oscillator under gusty winds
Vanvinckenroye, Hélène ULiege; Denoël, Vincent ULiege

in Proceedings of the XIV Conference of the Italian Association for Wind Engineering (2016)

This work studies the rotational stability of an oscillator in a random wind velocity field. Its susceptibility to autorotation is assessed by the time necessary to reach a given energy barrier departing ... [more ▼]

This work studies the rotational stability of an oscillator in a random wind velocity field. Its susceptibility to autorotation is assessed by the time necessary to reach a given energy barrier departing from an initial energy level. This first passage time problem is solved by replacing the actual power spectral density of the loading by an equivalent δ-correlated noise. [less ▲]

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See detailÉclairer les enjeux de la reconstruction industrielle du bassin liégeois : l'apport des archives des Etablissements insalubres et dangereux (1919-1925)
Peters, Arnaud ULiege; Defechereux, Olivier ULiege; Destatte, Julien ULiege

in Parmentier, Isabelle (Ed.) Etudes et bibliographies d'histoire environnementale (Belgique, Nord de la France, Afrique centrale). Actes des 2e RBel, Namur, décembre 2012 (2016)

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See detailLes droits fondamentaux, limites à l’autonomie en matière économique des entités qui composent l’État fédéral belge
Miny, Xavier ULiege

in Hoc, Arnaud; Wattier, Stéphanie; Willems, Geoffrey (Eds.) Human Rights as a Basis for Reevaluating and Reconstructing the Law (2016)

En l’espace d’un demi-siècle, la Belgique a évolué d’une structure unitaire vers celle d’une fédération. Désormais, les compétences en matière de politique économique sont distribuées entre les niveaux ... [more ▼]

En l’espace d’un demi-siècle, la Belgique a évolué d’une structure unitaire vers celle d’une fédération. Désormais, les compétences en matière de politique économique sont distribuées entre les niveaux fédéral et fédéré. Face à cet éclatement des prérogatives économiques susceptible d’engendrer la division, il existe des mécanismes qui ont, au contraire, une vocation centralisatrice et qui sont destinés à garantir une certaine forme de cohérence entre les différentes entités compétentes, tout en évitant la poursuite de politiques qui entraineraient une concurrence dommageable entre elles. Cette recherche vise à identifier en quoi les droits fondamentaux peuvent limiter les compétences économiques. En effet, au-delà de la question de savoir quelles compétences en matière économique sont attribuées à l’autorité fédérale et lesquelles ressortissent aux entités fédérées, se pose la question du rôle que jouent les droits fondamentaux, tels qu’ils se présent au niveau national et au niveau international, comme facteurs centripètes. [less ▲]

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See detailJohn of Trevisa légitimise la traduction en langue anglaise (vers 1387)
Dor, Juliette ULiege

in De Leemans, Pieter; Goyens, Clément (Eds.) Translation and Authority. Authorities in Translation (2016)

A l'instar de Chaucer ou des milieux wyclifiens, Trevisa revendique pour le nouveau lectorat/auditorat vernaculaire le droit d'accéder au savoir. Il s'appuie notamment sur la "translatio studii", le ... [more ▼]

A l'instar de Chaucer ou des milieux wyclifiens, Trevisa revendique pour le nouveau lectorat/auditorat vernaculaire le droit d'accéder au savoir. Il s'appuie notamment sur la "translatio studii", le modèle français et l'autorité culturelle qu'avait connue l'anglais avant Hastings. [less ▲]

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See detailNew challenges in mineral nomenclature and classification
Hatert, Frédéric ULiege; Mills, SJ; Pasero, M et al

in 2nd European Mineralogical Conference, EMC2016 - Abstract Book (2016)

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See detailAction computation for compositional software-defined networking
Pan, Heng; Xie, Gaogang; He, Peng et al

in IFIP Networking Conference (2016)

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See detailSplitbox: Toward efficient private network function virtualization
Asghar, Hassan; Melis, Luca; Soldani, Cyril ULiege et al

in Proceedings of the 2016 workshop on Hot topics in Middleboxes and Network Function Virtualization (2016)

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See detailSolving the inverse dynamics of a flexible 3D robot for a trajectory tracking task
Lismonde, Arthur ULiege; Sonneville, Valentin; Bruls, Olivier ULiege

in Proceedings of the 21th International Conference on Methods and Models in Automation and Robotics (MMAR) (2016)

The end-effector trajectory tracking of robotic manipulators with flexible links requires advanced control concepts. In order to compute the feedforward component of the control scheme, the inverse ... [more ▼]

The end-effector trajectory tracking of robotic manipulators with flexible links requires advanced control concepts. In order to compute the feedforward component of the control scheme, the inverse dynamics of such flexible 3D multibody system is solved using an optimal control method. The robot is modeled using nonlinear finite elements formulated on the SE(3) group. Hence singularity and parameterization issues that can arise from 3D rotations are avoided. A numerical example of a 3D flexible arm is analyzed to demonstrate the capabilities of the method. [less ▲]

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See detailNumerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity
Cerfontaine, Benjamin ULiege; Collin, Frédéric ULiege; Charlier, Robert ULiege

in Proceedings of the 1st International Conference on Energy Geotechnics (2016)

The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper ... [more ▼]

The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper presents the formulation of a new constitutive law able to represent the inherently cyclic behaviour of rocks at low confinement. The main features of the behaviour evidenced by experiments in the literature depict a progressive degradation and deformation of the material with the number of cycles. A constitutive law based on a boundary surface model is developed. It represents the brittle failure of the material as well as its progressive degradation. It also encompasses a fatigue resistance under which no degradation of the material holds. Parameters are calibrated with respect to laboratory experiments from the literature. A parametric study is carried out to highlight the role of different parameters. [less ▲]

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See detailAxisymmetric transient modelling of a suction caisson in sand: a numerical study
Cerfontaine, Benjamin ULiege; Collin, Frédéric ULiege; Charlier, Robert ULiege

in Proceedings of the first International Conference on Energy Geotechnics (2016)

This paper deals with the axisymmetric behaviour of a suction caisson installed in sand upon vertical monotonic and cyclic loading. A steel caisson is numerically modelled using the finite element code ... [more ▼]

This paper deals with the axisymmetric behaviour of a suction caisson installed in sand upon vertical monotonic and cyclic loading. A steel caisson is numerically modelled using the finite element code LAGAMINE. The Prevost model reproduces the cyclic behaviour of the soil, i.e. it captures the accumulation of deformation and pore water pressure within the soil. Coupled interface finite elements allow the modelling of the uplift behaviour of the caisson in both drained and partially drained conditions. Upon compression or traction loading, the suction caisson presents different modes of resistance: friction along the shaft, bearing capacity under the lid or the tip of the caisson, suction effect. The first part of this work describes the progressive mobilisation of these modes of resistance during monotonic simulations. The partially drained effect is particularly interesting since it drastically increases the resistance to transient loading. It proceeds from the transient consolidation process induced by the caissons loading. The second part describes the evolution of the settlement of the suction caisson upon different kind of cyclic loading signals. [less ▲]

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See detailImage and Ideology During the ED III and the Akkadian Periods: the Example of the Figurative Inlaid Panels of Mari
Couturaud, Barbara ULiege

in Stucky, Rolf; Kaelin, Oskar; Mathys, Hans-Peter (Eds.) Proceedings of the 9th International Congress on the Archaeology of the Ancient Near East (2016)

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See detailNon-linear optimization of a 1-D shallow water model and integration into Simulink for operational use
Goffin, Louis ULiege; Dewals, Benjamin ULiege; Erpicum, Sébastien ULiege et al

in Sustainable Hydraulics in the Era of Global Change - Proceedings of the 4th European Congress of the International Association of Hydroenvironment engineering and Research, IAHR 2016 (2016)

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See detailLimitation of self-organization within a confined aquifer
Westhoff, M. C.; Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege et al

in Dewals, Benjamin; Archambeau, Pierre; Pirotton, Michel (Eds.) et al Sustainable Hydraulics in the Era of Global Change (2016)

Preferential flow paths are omnipresent in the subsurface, but very hard to observe or parameterize. Often they are even sub-grid processes requiring effective parametrization. In an ongoing study ... [more ▼]

Preferential flow paths are omnipresent in the subsurface, but very hard to observe or parameterize. Often they are even sub-grid processes requiring effective parametrization. In an ongoing study,Westhoff et al. (2016) show within a lab experiment that the steady state effective hydraulic conductance evolves (under certain circumstances) to the conductance that maximizes power by the flux through the confined aquifer. Here we explore why in one setup the effective conductance did obey this maximum power principle, while the same setup with slightly different boundary conditions did not lead to this.We suggest here, with a detailed numerical setup of the experiment, that the degrees of freedom to create a long enough preferential flowpathwas too limited in the latter case: a foam rubber layer, placed between the sand and the plate covering the sand (to pressurize the sand layer) prevented further development of the preferential flow path. While this preferential flow path was long enough to result in an effective conductance leading to maximum power in the first setup, it needed to be longer in the second setup. © 2016 Taylor & Francis Group, London. [less ▲]

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See detailEnvironmental impact assessment of rail freight intermodality
Merchan Arribas, Angel ULiege; Belboom, Sandra ULiege; Léonard, Angélique ULiege

in Rasouli, Soora; Timmermans, Harry (Eds.) Current issues in transportation research - Proceedings of the BIVEC/GIBET transport research days 2015 (2016)

The European Commission’s White Paper on transport (European Commission, 2011) seeks to achieve an efficient and sustainable balance between the various transport modes. Environmental impact studies on ... [more ▼]

The European Commission’s White Paper on transport (European Commission, 2011) seeks to achieve an efficient and sustainable balance between the various transport modes. Environmental impact studies on intermodality transport show that rail freight transport is the land-based transport that has a higher environmental performance compared to intermodal road-rail and all-road transport (Fries and Hellweg, 2014), especially when electrified railway is used (Spielmann and Scholz, 2005). Life Cycle Assessment (LCA) methodology allows us to model as best as possible the environmental impacts of several pollutants in numerous categories. For other categories such as accident damages, noise impact and land use, new developments have to be performed. For the environmental impact assessment, all life cycle phases of rail freight transport operation, rail infrastructure, and rail equipment are taken into account (Spielmann et al., 2007). [less ▲]

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See detailAutonomes ou dépendantes ? Les Filles de la Charité en principauté de Liège, XVIIe-XIXe siècle
Henneau, Marie-Elisabeth ULiege

in Brejon de Lavergnée, Matthieu (Ed.) Des Filles de la Charité aux sœurs de Saint-Vincent-de-Paul : quatre siècles de « cornettes » (XVIIe-XXe siècle) (2016)

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See detailDifférents manomètres pour améliorer la ventilation au masque et ballon
RIGO, Vincent ULiege; Kreins, Nathalie; Eiras da Silva, Sandra et al

in Baud, Olivier; Saliba, Elie (Eds.) Congrès SFN-JFRN 2016, livre des communications (2015, December 17)

INTRODUCTION Les pressions employées lors de la ventilation au ballon sont difficiles à évaluer et souvent inadéquates. Les ballons disposent d’un connecteur où brancher un manomètre (manom) à ressort ou ... [more ▼]

INTRODUCTION Les pressions employées lors de la ventilation au ballon sont difficiles à évaluer et souvent inadéquates. Les ballons disposent d’un connecteur où brancher un manomètre (manom) à ressort ou une ligne vers un manom à cadran. Cependant, l’addition d’une variable à surveiller pourrait constituer une interférence et majorer le risque de fuite ou de rythme ventilatoire inadéquat. Cette étude évalue l’influence de manom simples sur la qualité de la ventilation. MÉTHODES Les participants aux Journées Belges de Pédiatrie pouvaient ventiler un mannequin aux voies respiratoires étanches avec un capteur de débit trachéal. Une pression de 25 mbar et une fréquence de 40 à 60/’ étaient visées. Une séquence de 45’’ avec un manom à ressort (R), une séquence avec un manom à cadran (C) et une sans (O) étaient réalisées dans un ordre aléatoire. La pression de pointe du ballon (P), le volume inspiratoire (VTi), et la fréquence de ventilation (FR) de chaque insufflation ont été analysées. La fuite autour du masque fut estimée en comparant VTi à un volume théorique dérivé d’une calibration avec masque scellé. RÉSULTATS Cinq néonatologues (Néo), 15 pédiatres et 11 internes ont réalisé 5279 insufflations. Les P obtenues avec un manom étaient plus élevées (O:176 mbar; R:184 mbar*; C:194 mbar*#) [*p<.05 vs O; #:p<.05 vs R] VTi augmentait légèrement (O:31 ml; R:3.11 ml*; C:3.21 ml*) FR était systématiquement trop élevé (77-82 bpm). L’usage d’un manom ne modifiait pas les paramètres pour les internes. Pour les Néo, ajouter un manom améliorait P, VTi et la fuite (P -O: 167 mbar; R and C: 204 mbar*) Sur les premières séquences de ventilation, le manom améliorait les paramètres (P-O: 124 mbar;R: 163 mbar*; C: 204 mbar*#), (VTi-O:21 ml; R:30.8 ml*; C:3.31 ml*#), (Fuite-O: 3816%; R: 2712%*; C: 3413%*#). CONCLUSIONS La ventilation au ballon reste difficile. Les pressions obtenues étaient éloignées de l’objectif, et le rythme souvent trop élevé. Si le manomètre permet d’améliorer les pressions et volumes obtenus, surtout en cas de ventilation sans feed-back préalable, cet effet bénéfique s’observe surtout pour les opérateurs expérimentés. Enfin, un congrès scientifique permet de recruter une population variée pour une étude de simulation simple. [less ▲]

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See detailImitative Learning for Online Planning in Microgrids
Aittahar, Samy ULiege; François-Lavet, Vincent ULiege; Lodeweyckx, Stefan et al

in Woon, Wei Lee; Zeyar, Aung; Stuart, Madnick (Eds.) Data Analytics for Renewable Energy Integration (2015, December 15)

This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert ... [more ▼]

This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert knowledge obtained from solving a family of linear programs, we build a learning set for training a decision-making agent. The empirical performances in terms of Levelized Energy Cost (LEC) of the obtained agent are compared to the expert performances obtained in the case where the scenarios are known in advance. Preliminary results are promising. [less ▲]

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See detailLa renonciation, l'abdication et la rupture du contrat de travail
Kéfer, Fabienne ULiege

in La rupture du contrat de travail : entre harmonisation et discrimination (2015, December 04)

L’étude, limitée au contexte de la dissolution du contrat de travail, aborde, dans une première partie, la possibilité pour les parties au contrat de travail de renoncer au bénéfice d’une disposition ... [more ▼]

L’étude, limitée au contexte de la dissolution du contrat de travail, aborde, dans une première partie, la possibilité pour les parties au contrat de travail de renoncer au bénéfice d’une disposition, possibilité liée au caractère impératif ou d’ordre de la disposition en cause. Est particulièrement étudié le lien entre le rapport de subordination et la faculté d’abdiquer un droit. Le document effectue ensuite une incursion dans la question de la preuve de la renonciation. La troisième partie passe en revue un large éventail de droits auxquels les parties pourraient être tentées de renoncer : clauses d’écolage, clauses de stabilité d’emploi, renonciation au droit d’invoquer la rupture du contrat de travail en cas d’acte équipollent à rupture ou de préavis nul, renonciation à la durée du préavis ou à l’indemnité en tenant lieu, renonciation au reclassement professionnel, aux droits découlant d’une convention collective, renonciation par un délégué du personnel, renonciation par la voie d’une convention collective, etc. Si la matière reste incertaine à bien des égards, elle est aussi en évolution, tant par l’effet de la jurisprudence que par l’action de la loi, et notamment celle du 26 décembre 2013 dite « statut unique », qui a modifié de manière sensible le champ de la licéité des renonciations au délai ou à l’indemnité compensatoire de préavis. [less ▲]

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See detailEstimation de la quantité de matière sèche ingérée par les vaches laitières au pâturage en traite robotisée, utilisation de l’analyse des fèces en spectrométrie dans le proche infrarouge
Lessire, Françoise ULiege; Dufrasne, Isabelle ULiege; Decruyenaere, Virginie

in Agabriel, Jacques; Boichard, Didier; Choisis, Jean-Philippe (Eds.) et al 22èmes Rencontres autour des recherches sur les ruminants. (2015, December 02)

Malgré l’intérêt nutritionnel et économique de l’herbe dans la ration des vaches laitières, le pâturage est de plus en plus délaissé en raison notamment de l’automatisation de la traite et de l’extension ... [more ▼]

Malgré l’intérêt nutritionnel et économique de l’herbe dans la ration des vaches laitières, le pâturage est de plus en plus délaissé en raison notamment de l’automatisation de la traite et de l’extension de la taille des troupeaux. Une des raisons invoquées par les éleveurs pour cet abandon est leur manque de confiance par rapport aux quantités d’herbe réellement ingérées par les animaux et la crainte que ces apports inconstants se traduisent par des fluctuations de production laitière tant qualitative que quantitative. Or Decruyenaere et al. (2009, 2012) ont développé une méthode d’estimation de la matière sèche volontairement ingérée (MSVI) par analyse des bouses par spectrométrie dans le proche infra-rouge. Cette méthode présente l’avantage d’être non invasive, facile à mettre en œuvre sur le terrain et peu onéreuse. Le but de cette étude était donc d’évaluer l’utilisation de cette méthode dans un troupeau de vaches laitières traites par un robot mobile en pâture. Le troupeau (n=53) était divisé en 2 groupes dont le niveau de complémentation journalière était différent. Lors de la traite, le groupe 1 (GR1) recevait en moyenne 2,6 kg de concentrés/vache alors que le groupe 2 (GR2) en recevait 4,2 kg/vache. L’objectif était de vérifier l’impact du niveau de complémentation sur les résultats obtenus. Des prélèvements de fèces ont été faits une fois par mois sur 10 vaches (5 vaches par groupe) pendant 4 mois. Les spectres d’absorption dans le proche infra-rouge (NIR) ont été confrontés à des étalonnages NIR permettant l’estimation de la MSVI exprimée soit par rapport au poids vif (MSVI1), soit par rapport au poids métabolique (MSVI2). Ces estimations d’ingestion ont permis le calcul de la matière sèche journalière ingérée par vache (MSI1 et MSI2). Par ailleurs, les mesures d’herbe à l’entrée et à la sortie des parcelles pâturées ont été relevées ainsi que la densité du couvert herbacé pour évaluer la quantité d’herbe disponible. A ces valeurs de biomasses disponibles ont été additionnées des quantités de concentrés distribuées lors du passage des animaux au robot. Les valeurs moyennes de matière sèche ingérée (kg/vache/jour) pour le GR1 étaient de 15,20 ± 2,60 kg MS par la MSI1 et de 16,99 ± 1,80 kg MS pour la MSI2. Pour le GR2, la MSI1moyenne était de 20,20 ± 4,95 kg MS et la MSI2 moyenne de 21,95 ± 3,36 kg MS. L’estimation de la ration disponible par vache (kg MS herbe + kg MS concentrés) était de 17,25 ± 0,73 kg MS pour le GR1 et de 18,69 ±0,83 kg MS pour le GR2. Les valeurs obtenues par l’analyse NIR sont donc compatibles avec les quantités d’herbe et de concentrés disponibles. Les valeurs estimées par les 2 méthodes étaient hautement corrélées entre elles à part en période de faible ingestion (<10 kgMS). En ce cas la MSI2 semble donner des résultats plus fiables. En conclusion, l’analyse NIR des bouses apparaît une technique intéressante pour l’estimation de la quantité d’herbe ingérée au pâturage. [less ▲]

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See detailAsteroseismic hare & hound exercises: the case of β Cephei stars
Salmon, Sébastien ULiege; Montalbán, J.; Miglio, A. et al

in Martins, F.; Boissier, S.; Buat, V. (Eds.) et al SF2A-2015: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: F. Martins, S. Boissier, V. Buat, L. Cambrésy, P. Petit, pp.423-428 (2015, December 01)

The β Cephei pulsating stars present a unique opportunity to test and probe our knowledge of the interior of massive stars. The information that we can get depends on the quality and number of ... [more ▼]

The β Cephei pulsating stars present a unique opportunity to test and probe our knowledge of the interior of massive stars. The information that we can get depends on the quality and number of observational constraints, both seismic and classical ones. The asteroseismology of β Cephei stars proceeds by a forward approach, which can result in multiple solutions, without clear indication on the level of confidence. We seek a method to derive confidence intervals on stellar parameters and investigate how these latter behave depending on the seismic data accessible to the observer. We realise forward modelling with the help of a grid of pre-computed models. We also use Monte-Carlo simulations to build confidence intervals on the inferred stellar parameters. We apply and test this method in a series of hare and hound exercises on a subset of theoretical models simulating observed stars. Results show that a set of 5 frequencies (with knowledge of their associated angular degree) yields precise seismic constraints. Significant errors on the determination of the extent of the central mixed region may result when the theoretical models do not present the same chemical mixture as the observed star. [less ▲]

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See detailSwitch from Hashimoto Thyroiditis (HT) to Graves Basedow (GB) disease : a controlled study in a series of 15 patients
Maiga, I; BETEA, Daniela ULiege; Geenen, Vincent ULiege et al

in Abstract book - 20th Annual Congress of the Belgian Society of Internal Medicine (2015, December)

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See detailFamilial thyrogastric autoimmune syndrome : a study of 22 kindreds
Sid, Sélim ULiege; LUTTERI, Laurence ULiege; BEGUIN, Yves ULiege et al

in Abstract book - 20th Annual Congress of the Belgian Society of Internal Medicine (2015, December)

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See detailHow to Discount Deep Reinforcement Learning: Towards New Dynamic Strategies
François-Lavet, Vincent ULiege; Fonteneau, Raphaël ULiege; Ernst, Damien ULiege

in NIPS 2015 Workshop on Deep Reinforcement Learning (2015, December)

Using deep neural nets as function approximator for reinforcement learning tasks have recently been shown to be very powerful for solving problems approaching real-world complexity. Using these results as ... [more ▼]

Using deep neural nets as function approximator for reinforcement learning tasks have recently been shown to be very powerful for solving problems approaching real-world complexity. Using these results as a benchmark, we discuss the role that the discount factor may play in the quality of the learning process of a deep Q-network (DQN). When the discount factor progressively increases up to its final value, we empirically show that it is possible to significantly reduce the number of learning steps. When used in conjunction with a varying learning rate, we empirically show that it outperforms original DQN on several experiments. We relate this phenomenon with the instabilities of neural networks when they are used in an approximate Dynamic Programming setting. We also describe the possibility to fall within a local optimum during the learning process, thus connecting our discussion with the exploration/exploitation dilemma. [less ▲]

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See detailTowards DisNETPerf: a Distributed Internet Paths Performance Analyzer
Wassermann, Sarah ULiege; Casas, Pedro; Donnet, Benoît ULiege

in ACM CoNEXT Student Workshop: Heidelberg 1 décembre 2015 (2015, December)

For more than 25 years now, traceroute has demonstrated its supremacy for network-path measurement, becoming the most widely used Internet path diagnosis tool today. A major limitation of traceroute when ... [more ▼]

For more than 25 years now, traceroute has demonstrated its supremacy for network-path measurement, becoming the most widely used Internet path diagnosis tool today. A major limitation of traceroute when the destination is not controllable by the user is its inability to measure reverse paths, i.e., the path from a destination back to the source. Proposed techniques to address this issue rely on IP address spoofing, which might lead to security concerns. In this paper we introduce and evaluate DisNETPerf, a new tool for locating probes that are the closest to a distant server. Those probes are then used to collect data from the server point-of-view to the service user for path performance monitoring and troubleshooting purposes. We propose two techniques for probe location, and demonstrate that the reverse path can be measured with very high accuracy in certain scenarios. [less ▲]

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See detailSaint Paul 3D - Acquisition tridimensionnelle de la cathédrale via LaserScan
Hallot, Pierre ULiege

in Journée d'étude organisée par l'Institut du Patrimoine Wallon et le Comité Patrimoine et Histoire de la FABI (2015, November 27)

Les nouvelles techniques LiDAR (Light Detection and Ranging) et photogrammétriques permettent d’acquérir rapidement un volume important de données 3D. Le terme LiDAR désigne tout instrument de mesure ... [more ▼]

Les nouvelles techniques LiDAR (Light Detection and Ranging) et photogrammétriques permettent d’acquérir rapidement un volume important de données 3D. Le terme LiDAR désigne tout instrument de mesure (terrestre, aéroporté) basé sur l’analyse des propriétés d’un faisceau renvoyé vers un émetteur (Poux et al. 2014). Conscient de l’énorme potentiel de ces techniques, l’Unité de Géomatique de l’Université de Liège a réalisé la numérisation de la Cathédrale Saint‐Paul de Liège. Ce projet a été initié via une collaboration avec le Matthieu Piavaux (FUNDP) et financée par le FNRS. Au‐delà des aspects de conservation et d’analyse du bâti, cette numérisation nous a permis de mettre en lumière les principes et limitations de la technique même d’acquisition de données 3D via LiDAR ainsi que ses limitations tant matérielles (sur terrain) que logicielles (traitement des données). Le jeu de donnée obtenu de la numérisation sert également de base fondamentale à un ensemble de projets de recherches (notamment via la réalisation de thèses de doctorats) visant à la segmentation automatique de nuages de points, de reconstruction d’objets tridimensionnelles, d’analyse de qualité d’ajustements. Par la suite, nous détaillons la méthodologie utilisée pour l’acquisition du nuage de points 3D ainsi que les différents principes de calage de nuages. Le chapitre suivant sera consacré à la présentation de résultats ainsi que de premiers développements en termes de segmentation automatique. Finalement, nous dresserons quelques perspectives de représentations. [less ▲]

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See detailCardio-pulmonary mechanics and minimal modelling in critical care
de Bournonville, Sébastien; Pironet, Antoine ULiege; Desaive, Thomas ULiege et al

in Proceedings of the IEEE-EMBS Benelux chapter 2015 meeting (2015, November 26)

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See detailParameter Correlation Analysis in Four Mathematical Models of Left Ventricular Relaxation
Pironet, Antoine ULiege; MORIMONT, Philippe ULiege; Dauby, Pierre ULiege et al

in Proceedings of the IEEE-EMBS Benelux chapter 2015 meeting (2015, November 26)

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See detailA Lightweight Network Proximity Service Based On Neighborhood Models
Liao, Yongjun; Du, Wei; Leduc, Guy ULiege

in 22nd IEEE Symposium on Communications and Vehicular Technology in the Benelux (SCVT) (2015, November 24)

This paper proposes a network proximity service based on the neighborhood models used in recommender systems. Unlike previous approaches, our service infers network proximity without trying to recover the ... [more ▼]

This paper proposes a network proximity service based on the neighborhood models used in recommender systems. Unlike previous approaches, our service infers network proximity without trying to recover the latency between network nodes. By asking each node to probe a number of landmark nodes which can be servers at Google, Yahoo and Facebook, etc., a simple proximity measure is computed and allows the direct ranking and rating of network nodes by their proximity to a target node. The service is thus lightweight and can be easily deployed in e.g. P2P and CDN applications. Simulations on existing datasets and experiments with a deployment over PlanetLab showed that our service achieves an accurate proximity inference that is comparable to state-of-the-art latency prediction approaches, while being much simpler. [less ▲]

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See detailL’Entéropathie Epizootique des lapins : passé, présent et futur
Marlier, Didier ULiege

in ITAVI (Ed.) Proceedings des 16èmes journées de la recherche cunicole (2015, November 24)

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See detailDeterminants of Access to Agricultural Credits for Small Scale Farmers in the Southern Province of Rwanda
Musabanganji, Edouard ULiege; Antoine, Karangwa; Lebailly, Philippe ULiege

in Book of Proceedings Sixth International Scientific Agricultural Symposium "AgroSym 2015" (2015, November 15)

This study investigated the determinants of financial inclusion for small scale farmers by focusing on the access to formal and informal agricultural credits in the Southern Province of Rwanda. Data were ... [more ▼]

This study investigated the determinants of financial inclusion for small scale farmers by focusing on the access to formal and informal agricultural credits in the Southern Province of Rwanda. Data were collected from 310 farmers from Huye and Nyamagabe districts through an open-ended structured questionnaire and analysed using the binary logistic regression method. The major findings, on one hand, showed that among the requested and approved agricultural loans, 87.2% and 12.7% were from informal and formal financial institutions respectively. Among those who accessed agricultural credits, 59.7% were from Huye and 40.3% from Nyamagabe. On the other hand, it was revealed that the household characteristics and the community attributes are the most important determinants. Those household characteristics include household income and expenditure, Ubudehe socio-economic category of the household, off-farm employment and the size of the land owned by the household whereas community attributes involve residence area, transport and informal financial services availability. Regarding farmer characteristics, the education level was found to be the only factor affecting the smallholder farmers' access to agricultural credit. In light of the findings, it was recommended to conduct sensitization sessions focusing on the importance of agricultural credits for smallholder farmers especially in the areas with high level of poverty. In addition, there is need to work on alleviating the formal agricultural credits access barriers, and to conduct a study on the dynamics of informal and formal agricultural credits up take and usage by smallholder farmers to explore all dimensions of financial inclusion in the study area. [less ▲]

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See detailThe Roll of Small Businesses in Traditional Handcraft in Rural Development: A Case-Study Of Hanoi Suburban Rattan Enterprises
Nguyen, Thi Thu Hien ULiege; Lebailly, Philippe ULiege; NGUYEN, Van Nghien

in International Conference on Emerging Challenges, Hanoi 12 november 2015 (2015, November 12)

Rural industrial development and new rural development programmes are the main target of Vietnam in the process of industrialization – modernization of the country. To expedite this process, it is ... [more ▼]

Rural industrial development and new rural development programmes are the main target of Vietnam in the process of industrialization – modernization of the country. To expedite this process, it is necessary to promote the development and encourage the contributions of small enterprise in general and small enterprise rural in particular because practices in many countries show the important role of small and micro enterprises in local development. This paper presents the initial results of research to understand the economic–social contributions of rural enterprises to local development through the mobilization of local resources as well as establishment of the economic-social relations in local of rattan’s enterprises in the suburb of Hanoi, and then propose some measures to facilitate the operation of enterprises and promote the contribution of rattan’s enterprises for local development. [less ▲]

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See detailDynamic modeling and control strategies analysis of a novel small CSP biomass plant for cogeneration applications in building
Desideri, Adriano ULiege; Amicabile, Simone; Alberti, Fabrizio et al

in ISES Solar World Congress 2015, Conference Proceedings (2015, November 12)

A concentrated solar power (CSP) biomass combined heat and power (CHP) system based on organic Rankine cycle (ORC) technology developed in the framework of the EU founded BRICKER project is presented. The ... [more ▼]

A concentrated solar power (CSP) biomass combined heat and power (CHP) system based on organic Rankine cycle (ORC) technology developed in the framework of the EU founded BRICKER project is presented. The CHP system coupled with heat recovery ventilation technology and novel insulation material has the aim of reducing the energy consumption of existing building by up to 50%. A simplified approach to implement a dynamic model of the CHP system is proposed. The model is firstly used to investigate the performances of the CHP system control logic under extreme working condition. Secondly, the effectiveness in ensuring safe working conditions and in maximizing the sun power usage of two different solar field control approaches is investigated simulating the developed model over a reference day [less ▲]

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See detailETUDE DE LA MICROSTRUCTURE DU MORTIER DE CIMENT A TRAVERS LES COURBES DE SORPTION
Kahlerras, Loubna ULiege; Belhamri, Azeddine; Fraikin, Laurent ULiege et al

in kahlerras, loubna (Ed.) Proceedings du séminaire International sur le Génie Climatique et l’Energétique, SIGCLE’2015 (2015, November 09)

La présente étude se focalise sur l’étude à travers les courbes de sorption de vapeur d’eau du comportement hydrique du mortier de ciment. Les expériences sont effectuées sur trois types de mortiers dont ... [more ▼]

La présente étude se focalise sur l’étude à travers les courbes de sorption de vapeur d’eau du comportement hydrique du mortier de ciment. Les expériences sont effectuées sur trois types de mortiers dont la seule différence est dans le rapport eau/ciment (E/C = 0,4, 0,5 et 0,6) afin d’étudier l’influence de ce rapport sur la microstructure du matériau. La méthode dynamique est utilisée pour l’obtention des isothermes de sorption en utilisant le « DVS (dynamic vapour sorption) Des échantillons en forme de concassât de quelques millimètres de diamètre sont utilisés, l’étude est complété par la porosité à mercure. Deux principaux modes poreux sont déterminés. [less ▲]

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See detailAdaptive Façades System Assessment: An initial review
Attia, Shady ULiege; Favoino, Fabio; Loonen, Roel et al

in Advanced Building Skins (2015, November 03)

The assessment of adaptive facades presents a challenge because there is no established evaluation strategy to systematically reach this goal and many of the available building energy standards and codes ... [more ▼]

The assessment of adaptive facades presents a challenge because there is no established evaluation strategy to systematically reach this goal and many of the available building energy standards and codes have limited applicability for such advanced facades system. This paper reviews current evaluation methods for assessing adaptive facades system through a literature review. It also discusses occupant behaviour, post occupancy evaluation and commissioning issues and presents the procedures. The paper is part of the activities of Working Group 3 in COST Action TU1403 - Adaptive Facades Network. So far we could not find a protocol for assessment of adaptive facades. The reviewed literature is scattered lacking a focus on adaptive facades. There is no agreement on defining what are adaptive facades (sometimes named intelligent, smart, dynamic). We could define specialized technology monitoring techniques to assess the performance of technologies such as fabric-integrated solutions (e.g. electrochromic glazing, phase-change materials, building-Integrated Photovoltaics with heat recovery (BIPV/T, shade shutters) and advanced controls. The review is used to identify gaps in existing assessment methods and helps develop strategies for the holistic evaluation and assessment of adaptive facade systems as part of high performance buildings. [less ▲]

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See detailGustave Serrurier-Bovy : un architecte à l’aube de la modernité
Folville, Xavier ULiege

in Art nouveau et écologie : Mélanges (2015, November 01)

Abstract A l'extrême fin du 19e siècle, l'Art nouveau s’épanouit sous des formes diversifiées, parfois contradictoires, mais partageant généralement la même volonté de rompre avec l'académisme et l ... [more ▼]

Abstract A l'extrême fin du 19e siècle, l'Art nouveau s’épanouit sous des formes diversifiées, parfois contradictoires, mais partageant généralement la même volonté de rompre avec l'académisme et l'historicisme du siècle finissant. Parmi les acteurs de cet Art nouveau, certains ne retiennent que le côté décoratif d’une nouvelle esthétique. Très tôt cependant, au cœur même de ce mouvement d’avant-garde, apparaissent les prémices du renouvellement qui le condamnera et conduira au Modernisme. Quelques travaux de Gustave Serrurier – mobilier ou architecture – méritent d’être observés sous cet angle. [less ▲]

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See detailGustave Serrurier-Bovy, architecte, commerçant et industriel
Folville, Xavier ULiege

in Art nouveau et écologie : Mélanges (2015, November 01)

« Il ne faut pas travailler pour un monde qui disparaît mais pour un monde nouveau dont on peut prévoir l’avènement ». Architecte par vocation et formation, puis commerçant, ensuite créateur et industriel ... [more ▼]

« Il ne faut pas travailler pour un monde qui disparaît mais pour un monde nouveau dont on peut prévoir l’avènement ». Architecte par vocation et formation, puis commerçant, ensuite créateur et industriel, le Liégeois Gustave Serrurier (1858-1910) est rapidement convaincu de la nécessité de lier l’architecture aux arts décoratifs. Il le fait avec la conviction politique et esthétique qu’une production industrialisée permettra de donner au plus grand nombre l’environnement artistique auquel tout être peut prétendre. Il pressent que le temps de l’artisanat est en passe d’être révolu et équipe progressivement ses ateliers de machines modernes. Si ses premières créations restent empreintes de l’esprit constructif des artisans néogothiques, s’il emploie ensuite des jeux de lignes courbes, tendues et maîtrisées, le début du XXe siècle le voit évoluer vers toujours plus de simplicité constructive et plus de rigueur géométrique. Grâce au mobilier, aux objets et aux aménagements d’intérieurs qu’il crée et fait réaliser par la centaine d’ouvriers de ses ateliers liégeois, sa firme prend rapidement une ampleur internationale et se fait remarquer dans les expositions universelles comme celle de Saint-Louis (U.S.A.) en 1904. Anticipant sur ce que seront les motivations d’un Bauhaus, ses préoccupations sociales et esthétiques conduisent Serrurier à imaginer un mobilier de plus en plus économique, rationnellement construit, adapté à l’usage et au lieu de destination, par exemple pour une habitation ouvrière à l’Exposition universelle de Liège en 1905. Là, un mobilier en orme équipe la salle commune égayée d’une frise au pochoir et de rideaux de lin garnis de carrés colorés. On y remarque un meuble à usage multiple, tout à la fois armoire, secrétaire et bibliothèque, sans autre décor que sa composition équilibrée ; banc, table et chaises sont faits d’éléments assemblés par des vis apparentes. C’est à cette même époque que Serrurier développe la ligne “Silex”, particulièrement représentative ; conçue de façon tout à fait originale et pragmatique, exécutée en bois blanc et décorée au pochoir, la plupart des assemblages de menuiserie sont remplacés par des vis apparentes. La découpe des planches se montre économe en matière. Une chaise, objet d’utilité commune, se doit d’être robuste, ergonomique et peu coûteuse à produire : ici, la production en série est aisée et pourra être assurée dans ses ateliers équipés de scies mécaniques et autres machines-outils. A l’examen, une chaise de cette série exprime bien les qualités de designer industriel de son concepteur et le place à l’avant-garde de son temps ; elle illustre aussi ses ambitions, tant sociales qu’esthétiques, et sa volonté d’un « art pour tous ». [less ▲]

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See detailNew Observations of Molecular Nitrogen by the Imaging Ultraviolet Spectrograph on MAVEN
Stevens, Michael H.; Evans, J. S.; Schneider, Nicholas M. et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2015, November 01)

The Martian ultraviolet dayglow provides information on the basic state of the Martian upper atmosphere. The Imaging Ultraviolet Spectrograph (IUVS) on NASA’s Mars Atmosphere and Volatile Evolution (MAVEN ... [more ▼]

The Martian ultraviolet dayglow provides information on the basic state of the Martian upper atmosphere. The Imaging Ultraviolet Spectrograph (IUVS) on NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) mission has observed Mars at mid and far-UV wavelengths since its arrival in September 2014. In this work, we describe a linear regression method used to extract components of UV spectra from IUVS limb observations and focus in particular on molecular nitrogen (N[SUB]2[/SUB]) photoelectron excited emissions. We identify N[SUB]2[/SUB] Lyman-Birge-Hopfield (LBH) emissions for the first time at Mars and we also confirm the tentative identification of N[SUB]2[/SUB] Vegard-Kaplan (VK) emissions. We compare observed VK and LBH limb radiance profiles to model results between 90 and 210 km. Finally, we compare retrieved N[SUB]2[/SUB] density profiles to general circulation (GCM) model results. Contrary to earlier analyses using other satellite data that indicated N[SUB]2[/SUB] densities were a factor of three less than predictions, we find that N[SUB]2[/SUB] abundances exceed GCM results by about a factor of two at 130 km but are in agreement at 150 km. [less ▲]

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See detailStructure and variability of the Martian upper atmosphere: Ultraviolet dayglow observations by MAVEN/IUVS
Deighan, Justin; Jain, Sonal K.; Lo, Daniel Y. et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2015, November 01)

Mars has been studied extensively at ultraviolet wavelengths starting from Mariner 6 and 7, Mariner 9, and more recently by SPICAM aboard Mars Express. The results from these measurements reveal a large ... [more ▼]

Mars has been studied extensively at ultraviolet wavelengths starting from Mariner 6 and 7, Mariner 9, and more recently by SPICAM aboard Mars Express. The results from these measurements reveal a large variability in the composition and structure of the Martian upper atmosphere. However, due to the lack of simultaneous measurements of energy input (such as solar electromagnetic and particle flux), and limitations in the observation geometry and data itself, this variability is still not fully understood.We report a comprehensive study of Mars dayglow observations by the Imaging Ultraviolet Spectrograph (IUVS) aboard the Mars Atmosphere and Volatile EvolutioN (MAVEN) satellite, focusing on vertical and global upper atmospheric structure and seasonal variability. The dayglow emission spectra show features similar to previous UV measurements at Mars. IUVS has detected a second, low-altitude peak in the emission profile of OI 297.2 nm, confirming the prediction that the absorption of solar Lyman alpha emission is an important energy source there. We find a significant drop in thermospheric scale height and temperature between Ls = 218° and Ls = 337 - 352°, attributed primarily to the decrease in solar activity and increase in heliocentric distance. The CO[SUB]2[/SUB][SUP]+[/SUP] UVD peak intensity is well correlated with simultaneous observations of solar 17 - 22 nm irradiance at Mars by Extreme Ultraviolet Monitor (EUVM) aboard MAVEN. Variations of the derived CO[SUB]2[/SUB] density also exhibit significant persistent global structure with longitudinal wavenumbers 1, 2 and 3 in a fixed local solar time frame, pointing to non-migrating atmospheric tides driven by diurnal solar heating. We will present and discuss the variability in Martian UV dayglow, its dependence on solar EUV flux, and the importance of IUVS observations in our current understanding of Mars’ thermosphere. [less ▲]

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See detailMars atmospheric escape constrained using MAVEN IUVS coronal observations
Chaffin, Michael S.; Deighan, Justin; Chaufray, Jean-Yves et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2015, November 01)

Every planetary atmosphere is capped by a corona: an extended, extremely tenuous region where collisions are negligible and particles follow ballistic trajectories. At Mars, the corona is especially ... [more ▼]

Every planetary atmosphere is capped by a corona: an extended, extremely tenuous region where collisions are negligible and particles follow ballistic trajectories. At Mars, the corona is especially extended due to the low gravity of the planet, and a large number of coronal particles are on escaping trajectories. Such escape has played a critical role in the history of the Mars system, likely removing a substantial fraction of the water initially present on the planet, but the mechanism and magnitude of this escape remains poorly constrained. Currently in orbit at Mars, MAVEN's Imaging Ultraviolet Spectrograph (IUVS) is mapping the distribution of oxygen and hydrogen above 200 km at a high spatial and temporal cadence, revealing a dynamic corona in unprecedented detail. Results will be presented demonstrating that the H in the corona is not spherically symmetric in its distribution, and can potentially be used as a tracer of thermospheric general circulation; and that non-thermal "hot" O (in contrast with more spatially confined "cold" thermal O) is ionospherically sourced with a characteristic energy of 1.1 eV and responds to solar EUV forcing. These results will be interpreted in terms of their impact on our current understanding of how atmospheric escape operates today. We will also discuss how these processes may have acted in the past to deplete Mars' initial water inventory, potentially altering the redox balance of the planet and atmosphere through differential escape of H and O. [less ▲]

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See detailTwo Types of Aurora on Mars as Observed by MAVEN's Imaging UltraViolet Spectrograph
Schneider, Nicholas M.; Deighan, J.; Jain, S. K. et al

in AAS/Division for Planetary Sciences Meeting Abstracts (2015, November 01)

The Imaging UltraViolet Spectrograph (IUVS) on the MAVEN spacecraft has detected two distinct types of auroral emission on Mars. First, we report the discovery of a low altitude, diffuse aurora spanning ... [more ▼]

The Imaging UltraViolet Spectrograph (IUVS) on the MAVEN spacecraft has detected two distinct types of auroral emission on Mars. First, we report the discovery of a low altitude, diffuse aurora spanning much of Mars’ northern hemisphere coincident with a solar energetic particle outburst. IUVS observed northerly latitudes during late December 2014, detecting auroral emission in virtually all nightside observations for ~5 days spanning virtually all geographic longitudes. The vertical profile showed emission down to ~70 km altitude (1 microbar), deeper than confirmed at any other planet. The onset and duration of emission coincide with the observed arrival of solar energetic particles up to 200 keV precipitating directly and deeply into the atmosphere. Preliminary modeling of the precipitation, energy deposition and spectral line emission yields good matches to the observations. These observations represent a new class of planetary auroras produced in the Martian middle atmosphere. Given minimal magnetic fields over most of the planet, Mars is likely to exhibit aurora more globally than Earth.Second, we confirm the existence of small patches of discrete aurora near crustal magnetic fields in Mars' southern hemisphere, as observed previously by SPICAM on Mars Express (Bertaux et al., Nature, 435, 790-794 (2005)). IUVS observed southern latitudes in July and August 2015, detecting discrete auroral emission in ~1% of suitable observations. Limb scans resolved both vertically and along-slit indicate this type of auroral emission was patchy on the scale of ~40 km, and located at higher altitudes ~140 km. The higher altitudes imply a lower energy of precipitating particles. The mix of spectral emissions also differed signficiantly from the diffuse aurora, indicating different excitation and quenching processes.We will discuss the observed properties of the aurora and associated charged particle precipitation, as well as the broader implications of this high-energy deposition into Mars' atmopshere. [less ▲]

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See detailPièges à considérer lors de l’évaluation isocinétique
Croisier, Jean-Louis ULiege; Kaux, Jean-François ULiege; Crielaard, Jean-Michel ULiege et al

in Abstract book des XVIIèmes RENCONTRES ISOCINETIQUES DE MEDIMEX (2015, November)

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See detailEvaluation isocinétique et fonctionnelle de la rupture de coiffe des rotateurs non opérée
Forthomme, Bénédicte ULiege; Schwartz, Cédric ULiege; MAHIEU, Xavier ULiege et al

in Abstract book des XVIIèmes RENCONTRES ISOCINETIQUES DE MEDIMEX (2015, November)

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See detailSensor based on the mode-localization effect in electrostatically-coupled MEMS resonators fabricated using an SOI process
Wood, Graham; Zhao, Chun; Pu, Suan et al

in Proceedings of the IEEE Sensors Conference, Nov. 2015 (2015, November)

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See detailEtude technique et dendrochronologique de la roue découverte dans le puits du château fort de logne
Hoffsummer, Patrick ULiege; Delye, Emmanuel ULiege; Wéry, Benoit

in Frébutte, Christian (Ed.) Pré-actes des Journées d'Archéologie en Wallonie (2015, November)

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See detailImproving the Installation of Offshore Wind Farms by the use of Discrete Event Simulation
Muhabie, Yohannes Tekle ULiege; Caprace, Jean-David ULiege; Petcu, Cristian ULiege et al

in Improving the Installation of Offshore Wind Farms by the use of Discrete Event Simulation (2015, November)

The offshore wind energy development is highly affected by the condition of the weather at sea. Hence, it demands a well-organized planning of the overall process starting from the producers’ sites until ... [more ▼]

The offshore wind energy development is highly affected by the condition of the weather at sea. Hence, it demands a well-organized planning of the overall process starting from the producers’ sites until the offshore site where the turbines will finally be installed. The planning phase can be supported with the help of Discrete Event Simulation (DES) where weather restrictions, distance matrix, vessel characteristics and assembly scenarios are taken into account. The purpose of this paper is to simulate the overall transport, assembly and installation of the wind turbine components at sea. The analysis is carried out through DES considering both the real historical weather data (wind speed and wave height) and probabilistic approach. Results of the study, applied to the real Offshore Wind Farm (OWF) configuration, are showing a good agreement between the two proposed models. The results point out that the probabilistic approach is highly affected by the semi-random numbers used to model the stochastic behavior of the input variable so that several iterations (200 to 400) are required to reach the convergence of the simulation outputs. We suggest that seasonality of the outputs of both models are preserved, i.e. the variation of the results depending on the variation of the weather along the year. These findings provide a new framework to address risks and uncertainties in OWF installations. [less ▲]

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See detailImpact of model reduction on the dynamic simulation of a micro-scale concentrated solar power system integrated with a thermal storage
Dickes, Rémi ULiege; Wéber, Noé ULiege; Lemort, Vincent ULiege et al

in Proceedings of the ISES Solar World Congress 2015 (2015, November)

Because of the intermittent nature of solar irradiances, micro-scale solar thermal power systems almost never operate in nominal operating conditions. They are characterized by strong transients and ... [more ▼]

Because of the intermittent nature of solar irradiances, micro-scale solar thermal power systems almost never operate in nominal operating conditions. They are characterized by strong transients and require robust, fast and accurate dynamic simulation tools to permit a proper evaluation of their performance. Model reduction, i.e. the simplification of detailed models, is an attractive method to improve the computational efficiency while simulating such systems. In this context, a µCSP plant featuring a solar field of parabolic troughs, a thermocline storage and a 5kWe power unit is investigated. Both the solar field and the thermocline storage are modeled with complex and simplified methods. The whole power plant is simulated under identical operating condition and deviations between the simulation results are analyzed. Benefits and limitations of the current modeling approach are assessed. Improvements for the modeling of the thermocline storage are identified, implemented and validated. The Modelica language is used as simulation tool and the models developed in this work are integrated in the open-source ThermoCycle library. [less ▲]

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See detailERT monitoring of water infiltration process through a landfill cover layer
Dumont, Gaël ULiege; Pilawski, Tamara ULiege; Robert, Tanguy et al

in Berichte der Geologischen Bundesanstalt, 112 (2015, November)

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See detailMASH2-0 electromechanical sigma-delta modulator for capacitive MEMS sensors with digital filter calibration using simulated annealing
Almutairy, Bader; Kraft, Michael ULiege

in Proceedings of the IEEE Sensors Conference, Nov. 2015 (2015, November)

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See detailImportance of microbiota in pets.
Diez, Marianne ULiege

in Proceedings of the Petfood Day Tereos Syral (2015, October 30)

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See detailL'approche typologique processuelle comme modèle systémique de lecture des représentations graphiques dans les concours d'architecture
Boutemadja, Abdelkader ULiege; Reiter, Sigrid ULiege

in ESS 2015 (2015, October 16)

Dans le cadre de cet article nous allons expliquer la démarche entreprise pour essayer de mieux comprendre les productions actuelles d’image d’architecture. Pour ce faire, nous avons effectué des ... [more ▼]

Dans le cadre de cet article nous allons expliquer la démarche entreprise pour essayer de mieux comprendre les productions actuelles d’image d’architecture. Pour ce faire, nous avons effectué des recherches sur deux niveaux complémentaire ; la systémique et la sémiotique. Si la deuxième nous permet d’utiliser des outils concrets d’analyse de l’image la première nous offre les bases théoriques pour expliquer l’objet d’étude qu’est l’image. Nous nous attarderons dans cet article sur les emprunts fait à la typologie processuelle comme approche systémique étudiants le territoire et le bâti et plus particulièrement sur la notion de moment de crise point de départ de la compréhension d’un phénomène aussi complexe que la représentation graphique du projet. [less ▲]

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See detailSensitivity of structures to fire decay phases: quantitative comparison of structural components made of different materials
Gernay, Thomas ULiege

in Wald, F.; Burgess, I.; Jelcic Rukavina, M. (Eds.) et al Proceedings of the Int. Conf. ASFE in Dubrovnik, 15-16 October 2015 (2015, October 16)

This work presents an analysis of the behaviour of different structural members under natural fires, with the aim to characterize their sensitivity to the fire decay phase. Thermo-mechanical numerical ... [more ▼]

This work presents an analysis of the behaviour of different structural members under natural fires, with the aim to characterize their sensitivity to the fire decay phase. Thermo-mechanical numerical simulations based on the non-linear finite element method are conducted using the parametric fire model of Eurocode to represent the natural fires. Results show that, for all the studied members (column, beam) and materials (reinforced concrete, steel, timber), structural failure during or after the cooling phase of a fire is a possible event. The major factors that promote delayed structural failure are the thermal inertia and the constituting material of the member. An indicator is proposed to quantify the propensity to delayed failure for structural members under natural fire. This work enhances the understanding of the structural behaviour under natural fires and has implications for the safety of the fire brigades and people proceeding to a building inspection after a fire. [less ▲]

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See detailAnalysis of a concrete building exposed to natural fire
Sauca, Ana ULiege; Gernay, Thomas ULiege; Robert, Fabienne et al

in Wald, F.; Burgess, I.; Jelcic Rukavina, M. (Eds.) et al Proceedings of the Int. Conf. ASFE in Dubrovnik, 15-16 October 2015 (2015, October 16)

In this paper is presented the analysis of a concrete building exposed to OZone fire. The temperature development in the elements and the structural behaviour were calculated in SAFIR using beam elements ... [more ▼]

In this paper is presented the analysis of a concrete building exposed to OZone fire. The temperature development in the elements and the structural behaviour were calculated in SAFIR using beam elements for the columns and beams and shell elements for the floor slabs. The first floor was modelled and the effects of action from the upper storeys are applied as external loads. It is shown how the numerical analysis allows understanding the behaviour of the structure when exposed to a natural fire until complete cooling by analysing the evolution of displacements, the distributions of bending moments in the beams, the membrane forces in the slab, and the stresses in the elements. All this detailed information would not be available from an experimental test. [less ▲]

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