Last 7 days
Bookmark and Share    
See detailAlexander Kluge et le cinéma de l'indécision.
Cormann, Grégory ULg; Hamers, Jérémy ULg

Book published by Presses de l'ULg (2015)

Detailed reference viewed: 17 (2 ULg)
See detailPratiques de l'enquête (Ouvrage collectif aux Presses Universitaires de Liège, en cours d'élaboration)
Pieron, Julien ULg; Thoreau, François ULg

Book published by Presses Universitaires de Liège (2015)

Detailed reference viewed: 31 (2 ULg)
Full Text
Peer Reviewed
See detailInscriptiones Lesbi, Tenedi, Nesi. Concordance des éditions
Famerie, Etienne ULg

in Horos (2015), 26-29

Concordance of the whole corpus of inscriptions of Lesbus, in relation with the inventory of the collection stored in the Archaeological Museum (Lesbus)

Detailed reference viewed: 12 (1 ULg)
Peer Reviewed
See detailAn agent-based micro-simulation framework to assess the impact of river floods on transportation systems: implementation trajectory for an assessment in the Brussels metropolitan area
Saadi, Ismaïl ULg; Eftekhar, Hamed ULg; Mustafa, Ahmed et al

in International Journal for Traffic and Transport Engineering (IJTTE) Belgrade 2014 Proceedings (2015)

Several studies were made to assess the direct damage but few studies tackled the topic related to the assessment of indirect damage. This paper discusses the development of a large scale agent-based ... [more ▼]

Several studies were made to assess the direct damage but few studies tackled the topic related to the assessment of indirect damage. This paper discusses the development of a large scale agent-based micro-simulation framework to assess the economic damage caused by river floods. The advantage of this approach is that the economic loss can be assessed at individual level. For that purpose, relationship is established between costs and trips cancelation/duration growth. As the numerical simulations depend largely on the initial demand, the accuracy of the data is fundamental. The model is based upon several disaggregated data related to mobility behaviour of the Belgian citizens. The study area covers the Brussels metropolitan area which was subjected to several floods in the past and may see the risk increasing in the coming decades. [less ▲]

Detailed reference viewed: 47 (24 ULg)
See detailArts en diaspora Congolese en Belgique: imaginaires et relations postcoloniales
Demart, Sarah ULg; Baumerder, Joelle; Gilsoul, Sarah

Book published by Africulture (2015)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailResponse of plant functional traits during the restoration of calcareous grasslands from forest stands
Piqueray, Julien; Ferroni, Lucia; Delescaille, Louis-Marie et al

in Ecological Indicators (2015)

In this survey, we studied the response of plant functional traits to calcareous grassland restoration in the Calestienne region, Southern Belgium (restoration protocol: forest clear-cutting followed by ... [more ▼]

In this survey, we studied the response of plant functional traits to calcareous grassland restoration in the Calestienne region, Southern Belgium (restoration protocol: forest clear-cutting followed by grazing at all sites). We considered traits related to dispersal, establishment, and persistence that integrate the main challenges of plants to re-establish and survive in restored areas. Functional traits were compiled from databases and compared among (i) pre-restoration and young restoration forests; (ii) restoration areas of different ages; and (iii) old restorations and reference grasslands. The following questions were addressed: (i) What is the early response (2-4 years) in terms of plant functional trait following one restorative clear-cut event? (ii) What plants functional trait responses occur from restorative management (i.e. sheep and goat grazing)? (iii) Which differences still persist between the oldest restored parcels (10-15 years), and the historical reference grasslands? Forest clear-cuts induced several changes among functional traits, including decreased mean seed mass and certain vegetative traits (i.e. decreased phanerophytes, branching species; and increased short lifespan species i.e. annuals and biennials). During restorative management, clonal, epizoochorous and autumn germinating species were favored. Despite numerous other changes during this phase, many differences remained compared to reference grasslands. In particular, geophytes, mycorrhizal and evergreen species abundance were not approaching reference grassland values. The observed pattern helped to draw inferences on the possible mechanisms operating under vegetation recovery following restorative forest clear-cut and subsequent management were identified and described in this study. Results indicated grazing was an important factor, which increased epizoochorous species, and autumn germinating taxa that filled niches in vegetation opened by summer grazing animals. Finally, differences between old restoration and reference grasslands emphasized that management should focus on reduction in soil fertility, and geophyte rhizomatous grasses. Long-term monitoring is vital to assess if management plans are effective in the complete restoration of species functional trait assemblages. [less ▲]

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailReview on greenhouse gas emissions from pig houses: Production of carbon dioxide, methane and nitrous oxide by animals and manure
Philippe, François-Xavier ULg; Nicks, Baudouin ULg

in Agriculture, Ecosystems & Environment (2015)

The environmental impacts of livestock production are attracting increasing attention, especially the emission of greenhouse gases (GHGs). Currently, pork is the most widely consumed meat product in the ... [more ▼]

The environmental impacts of livestock production are attracting increasing attention, especially the emission of greenhouse gases (GHGs). Currently, pork is the most widely consumed meat product in the world, and its production is expected to grow in the next few decades. This paper deals with the production of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) by animals and by manure from pig buildings, with a focus on the influence of rearing techniques and nutrition. GHG emissions in piggeries originate from animals through CO2 exhalation and CH4 enteric fermentation, and from manure through the release of CO2, CH4 and N2O. The level of the CO2 exhalation (E-CO2, pig) depends on the physiological stage, the body weight (BW), the production level and the feed intake of the animals concerned. Enteric CH4 (E-CH4, pig) is principally related to dietary fibre intake and the fermentative capacity of the pig’s hindgut. Based on a review of the literature, the following equations are proposed in order to estimate E-CO2, pig (in kg day_1) and E-CH4,pig (in g day_1) for fattening pigs: E-CO2, pig = 0.136 _ BW0.573; E-CH4,pig = 0.012 _ dRes; with BW (in kg) and dRes for digestible residues (in g day_1). Numerous pathways are responsible for GHG production in manure. In addition, the microbial, physical and chemical properties of manure interact and modulate the level of emissions. Influencing factors for removal systems for both liquid and solid fractions of manure have been investigated. A large range of parameters showing an impact on the level of GHG production from pig houses has been reported. However, few of these can be considered unquestionably as GHG mitigation techniques because some strategies have shown contradictory effects depending on the gas, the circumstances and the study. Nevertheless, frequent manure removal seems to be an efficient means to reduce concurrently CO2-, CH4- and N2O-emissions from pig buildings for both slatted and bedded floor systems. Manure removal operations may be associated with specific storage conditions and efficient treatment in order to further reduce emissions. Several feeding strategies have been tested to decrease GHG emissions but they seem to be ineffective in reducing emissions both significantly and durably. In general, good management practices that enhance zootechnical performance will have beneficial consequences on GHG emission intensity. Taking into account the results described in the literature regarding CO2-, CH4- and N2O-production from animals and manure in pig houses, we estimate total GHG emissions to 448.3 kg CO2equiv. per slaughter pig produced or 4.87 kg CO2equiv. per kg carcass. The fattening period accounts for more than 70% of total emissions, while the gestation, lactation and weaning periods each contribute to about 10% of total emissions. Emissions of CO2, CH4 and N2O contribute to 81, 17 and 2% of total emissions from pig buildings, representing 3.87, 0.83 and 0.11 kg CO2equiv. per kg carcass, respectively. [less ▲]

Detailed reference viewed: 21 (1 ULg)
Full Text
Peer Reviewed
See detailDevelopment of thermal comfort models for various climatic zones of North-East India
Singh, Manoj Kumar; Mahapatra, Sadhan; Teller, Jacques ULg

in Sustainable Cities and Society (2015), 14

Thermal comfort study provides crucial information about thermal performance of naturally ventilated buildings. Humphreys and Auliciems comfort model uses indoor and outdoor temperatures to predict ... [more ▼]

Thermal comfort study provides crucial information about thermal performance of naturally ventilated buildings. Humphreys and Auliciems comfort model uses indoor and outdoor temperatures to predict comfort temperatures. It is found that the comfort temperatures obtained by using these methods do not take into account the occupant behavioral adaptability to a particular climatic zone. This demands development of new set of comfort models based on local environmental parameters, socio-cultural setup and behavioral action. Analysis shows that four major variables like indoor and outdoor temperature, relative humidity and clothing pattern plays an important role in defining comfort and greatly influence the occupant’s perception and acceptance on thermal comfort. In this study, comfort models are developed based on these variables. The computed neutral temperatures based on the models are compared with the comfort temperatures obtained through comfort survey. The models are developed using the measured data of January and July months and validated with the measured data of April and October months. This study also concludes that it is not possible to obtain a generalized thermal comfort model for all climatic zone because adaptation process, expectation and perception of people are region specific and governed by local socio-cultural requirement. [less ▲]

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailL'expérience de la valeur: Ehrenfels et Meinong
Dewalque, Arnaud ULg

E-print/Working paper (2015)

A supposer que le concept de valeur soit un concept empirique, qui a sa source dans l'expérience, de quel type est l'expérience de la valeur? Dans les pages suivantes, je suggère qu’Ehrenfels et Meinong ... [more ▼]

A supposer que le concept de valeur soit un concept empirique, qui a sa source dans l'expérience, de quel type est l'expérience de la valeur? Dans les pages suivantes, je suggère qu’Ehrenfels et Meinong ont apporté certaines améliorations substantielles à la position de Brentano. Ces améliorations résident essentiellement dans les deux points suivants : (1) les volitions se caractérisent par une dimension « active » ou conative qui fait défaut aux sentiments, ce qui interdit de les ranger dans une seule et même « classe » de phénomènes psychiques ; (2) le concept de valeur trouve son origine empirique dans les volitions ou les phénomènes conatifs, non dans les sentiments ou phénomènes affectifs. [less ▲]

Detailed reference viewed: 20 (2 ULg)
Peer Reviewed
See detailPour une pensée politique des émotions : Kluge et Ferenczi dans Die Macht der Gefühle
Cormann, Grégory ULg; Hamers, Jérémy ULg

in Caeymaex, Florence; Goddard, Jean-Christophe (Eds.) Critiques en crise. Enjeux et significations de la critique aujourd'hui (2015)

Detailed reference viewed: 7 (0 ULg)
Peer Reviewed
See detailEnfance, culture, morale. Sartre et les relectures d'Alain
Cormann, Grégory ULg

in Depraz, Natalie (Ed.) Alain philosophe rouennais (2015)

Detailed reference viewed: 6 (0 ULg)
Full Text
See detailInscriptiones Lesbi, Nesi, Tenedi
Famerie, Etienne ULg

Report (2015)

Detailed reference viewed: 10 (2 ULg)
Full Text
Peer Reviewed
See detailCatalogue of the types and illustrated specimens recovered from the ‘black marble’ of Denée, a marine conservation-Lagerstätte from the Mississippian of southern Belgium
Mottequin, Bernard ULg; Poty, Edouard; Prestianni, Cyrille

in Geologica Belgica (2015)

The Viséan ‘black marble’ of Denée is one of the best preserved Mississippian fossil assemblages. This Lagerstätte is famous for the exceptional preservation of several groups of macro-organisms (fishes ... [more ▼]

The Viséan ‘black marble’ of Denée is one of the best preserved Mississippian fossil assemblages. This Lagerstätte is famous for the exceptional preservation of several groups of macro-organisms (fishes, echinoids, graptolites). However, only a part of the fauna has received attention from specialists and most of the phyla may benefit from a modern revision based on new investigative techniques such as 3D imagery and CT-scanning. Almost all the specimens illustrated in the literature have been traced and we present here a comprehensive catalogue of this material. Representatives of several minor groups are photographically illustrated for the first time as well as five emblematic specimens of the styracopterid genus Benedenius (Pisces). For purposes of nomenclatural formality, the lectotypes of Benedenius deneensis Traquair (in de Koninck, 1878), B. soreili Fraipont, 1890, Oligoporus soreili Fraipont, 1904, Taeniaster? fournieri Fraipont, 1904, and Scaphiocrinus longicaudatus Fraipont, 1904 are here selected. [less ▲]

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailGIS-Based Landslide Susceptibility Mapping in the Great Lakes Region of Africa, Case Study of Bujumbura Burundi
Nibigira, L.; Draidia, Salah ULg; Havenith, Hans-Balder ULg

in Engineering Geology for Society and Territory-Volume 2 (2015)

Abstract: Landslides in Central Africa represent a constant threat to the population. The present work took its motivation from the increasing number of recorded incidents in recent times. It is focused ... [more ▼]

Abstract: Landslides in Central Africa represent a constant threat to the population. The present work took its motivation from the increasing number of recorded incidents in recent times. It is focused on the analysis of mass movements in a regional context. Remote sensing based on the use of satellite images (Pleiades images of 2011) and aerial photographs (1957, 1958 and 1981) allowed us to identify instabilities at different scales. The study of these mass movements and the characterization of the processes governing ... [less ▲]

Detailed reference viewed: 10 (1 ULg)
Peer Reviewed
See detailHazard and Risk Related to Earthquake-Triggered Landslides
Havenith, Hans-Balder ULg; Fan, X.; Torgoev, A.

in Engineering Geology for Society and Territory-Volume 2 (2015)

Abstract This paper first analyses how important earthquake-induced landslide hazards are compared to other geohazards at world-wide scale. Further, we will outline where these hazards may have the ... [more ▼]

Abstract This paper first analyses how important earthquake-induced landslide hazards are compared to other geohazards at world-wide scale. Further, we will outline where these hazards may have the strongest impacts—at regional and local scale. In this regard, we consider the short-and long-term effects of geological, tectonic, climatic and morphological conditions. Hazard and risk related to these processes will also be analysed on the basis of a series of case histories: eg, the 1920 Haiyuan earthquake-landslide disaster in China. A ... [less ▲]

Detailed reference viewed: 7 (1 ULg)
Peer Reviewed
See detailLandslide Susceptibility Mapping with Data Mining Methods—a Case Study from Maily-Say, Kyrgyzstan
Braun, A.; Fernandez-Steeger, T.; Havenith, Hans-Balder ULg et al

in Engineering Geology for Society and Territory-Volume 2 (2015)

Abstract: Multiple factors, such as geology, high mountain topography, seismic activity, climatic conditions and mining activities cause significant landslide hazard in the region around Maily-Say ... [more ▼]

Abstract: Multiple factors, such as geology, high mountain topography, seismic activity, climatic conditions and mining activities cause significant landslide hazard in the region around Maily-Say, Kyrgyzstan. To assess the landslide susceptibility a database containing landslide information and geological, morphological and hydrological parameters associated with landslide occurrence was established and analyzed with different data mining algorithms. The most promising results were achieved with an Artificial Neural ... [less ▲]

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailGiven to a Deity? Religious and Social Reappraisal of Human Consecrations in the Hellenistic and Roman East
Caneva, Stefano ULg; Delli Pizzi, Aurian ULg

in Classical Quarterly (2015)

Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that ... [more ▼]

Various cases of human beings ‘dedicated’ to deities are attested in Greek epigraphic evidence. Are these kinds of offerings comparable to the dedication of inanimate objects? Besides, does the fact that someone is said to be ‘sacred’ to a specific deity necessarily involve that he went through a process of dedication? This article aims at providing a global picture of different situations in which processes of dedications took place. Among the several issues that are tackled, the cornerstone of this article consists of two questions: for what purposes did some people decide to consecrate a human being to a deity and what were the consequences for the consecrated individuals on religious and social levels? Different categories of persons will be contrasted, in terms of processes through which they acquire their new status but also in terms of the freedom/lack of freedom which is conveyed by this new status. It will also be shown that, as far as method is concerned, it is necessary to complete a lexical analysis with a contextual perspective for a deeper understanding of the problem. [less ▲]

Detailed reference viewed: 237 (12 ULg)
Peer Reviewed
See detailAn original solver for spillway flow
Goffin, Louis ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

Poster (2015)

Detailed reference viewed: 3 (3 ULg)
Full Text
Peer Reviewed
See detailQuantitative temperature monitoring of a heat tracing experiment using cross-borehole ERT
Hermans, Thomas ULg; Wildemeersch, Samuel ULg; Jamin, Pierre ULg et al

in Geothermics (2015), 53

The growing demand for renewable energy leads to an increase in the development of geothermal energy projects and heat has become a common tracer in hydrology and hydrogeology. Designing geothermal ... [more ▼]

The growing demand for renewable energy leads to an increase in the development of geothermal energy projects and heat has become a common tracer in hydrology and hydrogeology. Designing geothermal systems requires a multidisciplinary approach including geological and hydrogeological aspects. In this context, electrical resistivity tomography (ERT) can bring relevant, qualitative and quantitative information on the temperature distribution in operating shallow geothermal systems or during heat tracing experiments. We followed a heat tracing experiment in an alluvial aquifer using cross-borehole time-lapse ERT. Heated water was injected in a well while water of the aquifer was extracted at another well. An ERT section was set up across the main flow direction. The results of ERT were transformed into temperature using calibrated petrophysical relationships. These ERT-derived temperatures were then compared to direct temperature measurements in control piezometers collected with distributed temperature sensing (DTS) and groundwater temperature loggers. Spatially, it enabled to map the horizontal and vertical extent of the heated water plume, as well as the zones where maximum temperatures occurred. Quantitatively, the temperatures and breakthrough curves estimated from ERT were in good agreement with the ones observed directly during the rise and maximum of the curve. An overestimation, likely related to 3D effects, was observed for the tail of the heat breakthrough curve. The error made on temperature can be estimated to be between 10 to 20 %, which is a fair value for indirect measurements. From our data, we estimated a quantification threshold for temperature variation of 1.2°C. These results suggest that ERT should be considered when designing heat tracing experiments or geothermal systems. It could help also to assess the geometrical complexity of the concerned reservoirs. It also appears that ERT could be a useful tool to monitor and control geothermal systems once they are in operation. [less ▲]

Detailed reference viewed: 69 (33 ULg)