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See detailLancement d’une unité de cogénération biomasse de 30 kWel sur le marché
Oudkerk, Jean-François ULg

Master's dissertation (2012)

La cogénération est une technique de production rationnelle et efficace de l’énergie. Le principe est simple : produire de l’électricité et de la chaleur simultanément. Le but étant d’éviter les pertes ... [more ▼]

La cogénération est une technique de production rationnelle et efficace de l’énergie. Le principe est simple : produire de l’électricité et de la chaleur simultanément. Le but étant d’éviter les pertes d’énergie thermique inévitablement liées aux centrales électriques de grosse puissance. Cette technique permet d’économiser de l’énergie primaire, de réduire les émissions de CO2 et de générer un revenu pour l’exploitant. Pour ses divers avantages, elle est mise en avant par la Commission européenne comme technologie à développer pour atteindre les objectifs énergétiques de l’Union Européenne. Depuis quelques années, la micro cogénération arrive sur le marché. Malgré les estimations prometteuses, elle n’a pas encore réussi à atteindre le marché de masse comme l’ont fait certaines technologies relatives à la production d’énergie verte pour le particulier (on pense notamment au succès des panneaux photovoltaïques). Mais les experts s’accordent à dire que, désormais, tous les facteurs sont réunis pour que le marché de la cogénération se développe comme il le mérite. Ce travail commence par analyser les facteurs qui influencent le marché de la cogénération et tente d’expliquer pourquoi celui-ci n’en est qu’à sa phase de lancement. L’analyse de ces facteurs montre que le marché a connu un début difficile mais qu’aujourd’hui, tout est en place pour qu’il entre dans sa phase de croissance. Le but de cette démarche est d’évaluer le potentiel commercial d’un produit innovant proposé par CORETEC. Afin de déterminer ce potentiel, un modèle de la rentabilité économique d’une unité de cogénération est proposé. Ce modèle se base sur un profil de consommation de chaleur horaire pour déterminer la production d’énergie et la consommation en combustible, heure par heure, de la cogénération tout au long d’une année. Connaissant la production et la consommation, il est possible de déterminer la rentabilité du projet via trois critères : le temps de retour actualisé, la valeur actuelle nette et le taux de rentabilité interne. Ce modèle est utilisé pour déterminer le client cible en Région wallonne. Ce dernier est le client pour qui le produit offre une rentabilité économique. Après avoir détermine le profil du client cible, un nombre de clients potentiels est déterminé sur base de statistiques énergétiques. Pour terminer, une comparaison avec un produit standard du marché est effectuée et l’influence des mécanismes de soutien mis en place par la Région wallonne est étudiée. [less ▲]

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See detailLand availability and housing development: the case of Wallonia
Halleux, Jean-Marie ULg; Strée, Julie ULg

Conference (2013, May 24)

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See detailLand conversion for industrialization and its impacts on household livelihood strategies in Hung Yen province, northern Vietnam
Nguyen, Thi Dien ULg

Doctoral thesis (2011)

This thesis is about the impact of land conversion for industrialization on household livelihood strategies in Hung Yen province, northern Vietnam. The study shows that land conversion is generating a ... [more ▼]

This thesis is about the impact of land conversion for industrialization on household livelihood strategies in Hung Yen province, northern Vietnam. The study shows that land conversion is generating a household landholdings decline while boosting the land market. After land conversion, 16% of laborers in the surveyed households find employment in industrial factories while 52% find jobs in the informal sector. Because of land conversion, rather than being net food producers, peasant households have become net food purchasers. Meantime, food safety in industrial areas is threatened by increasing environmental pollution. The findings also demonstrate that 51.9% of the surveyed households choose diversification as a livelihood strategy while 35.6% of them shift entirely to non-farm strategies. Among the affected peasant groups, households with a non-farm background that lost less than 50% of their agricultural land are likely to be in a better position to engage in lucrative non-farm jobs. Land conversion is causing a complex agrarian transformation in Vietnam. On the one hand, it generates a mechanism of social differentiation which is determined by land alteration and capital accumulation from high earning non-farm activities. On the other hand, peasant livelihood strategies, thanks to adaptation and innovation, have mitigated the impacts of land conversion and reveal the persistence of a peasant economy. [less ▲]

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See detailLand conversion to industrialization and its impacts on household food security in Red River Delta, Vietnam
Nguyen Thi, Dien; Lebailly, Philippe ULg; Vu Dinh, Ton

Conference (2010)

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and ... [more ▼]

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and clusters. This paper analyzes the complex impacts caused by industrialization on household food security. Both qualitative and quantitative methods were applied to investigate how land conversion process to industrial companies affected food security of different groups of peasant households in Hung Yen province, the most rapid industrialization province in Red River Delta of Vietnam. The study showed that industrialization and neo-liberalism affected household food security in three aspects: the lost of large agricultural land area which did not ensure stable jobs for peasants; the decline of living quality as a result of environmental pollution and high living costs; and the lost of household self reliance on food, with 77 percent of surveyed households not producing enough food for their own consumption. Industrialization had created a new class structure in the Vietnamese countryside with the rise of landless peasants who survived by selling their labor and who are net food buyers. The study contributes to the research that link the analysis of household food security with livelihood systems in the processes interacting across scales, from the very local to the global. [less ▲]

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See detailLand Cover Dynamics (1990-2002) in Binh Thuan Province, Southern Central Vietnam
Hountondji, Yvon ULg; De Longueville, Florence ULg; Ozer, Pierre ULg

in International Journal of Asian Social Science (2012), 2(3), 336-349

This paper describes the use of satellite imageries and GIS data for identifying key environmental characteristics of Binh Thuan Province in south central Vietnam and for detecting the major changes ... [more ▼]

This paper describes the use of satellite imageries and GIS data for identifying key environmental characteristics of Binh Thuan Province in south central Vietnam and for detecting the major changes patterns within this region. Landsat TM (1990) and Landsat ETM+ (2002) imageries were used to classify the study area into seven land use and land cover (LULC) classes. A post-classification comparison analysis was used to quantify and illustrate the various LULC conversions that took place over the 12-year span of time. Results showed that a steady growth in population has caused extensive changes of land cover throughout the area. The maps also indicate that the loss of woody land (forest) and the extension of wetlands (irrigated area), combined with built-up encroachment, remains one of the most serious environmental problems facing the Binh Thuan Province today. The post-classification change detection analysis showed that critical habitats accounted for nearly 38.5% of the intensive study area between 1990 and 2002 while 61.5% remained stable. Results also showed over the 12-year span, approximately 1151.2 km² (115.120 ha) forest were converted respectively to brush, irrigated area (wetlands), cropland and built-up. This is an overall average decrease of 9594 hectares of forested area per year. Throughout the study area, districts most affected by forest conversion to another land cover are: Bac Bihn (2798 ha/year), Than Linh (2717 ha/year), Ham Thuan Nam (1601 ha/year) and Ham Thuan Bac (1524 ha/year). Based on the identified causes of these changes, we made policy recommendations for better management of land use and land cover. [less ▲]

Detailed reference viewed: 108 (18 ULg)
See detailLand cover maps, BVOC emissions and SOA burden in a global aerosol-climate model
Stanelle, Tanja; Henrot, Alexandra-Jane ULg; Bey, Isabelle

Poster (2015, April)

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See detailDas „Land der Väter“ im politischen Zionismus Theodor Herzls
Pontzen, Alexandra ULg

in Pontzen, Alexandra; Stähler, Axel (Eds.) Das Gelobte Land: Erez Israel von der Antike bis zur Gegenwart in Quellen und Darstellungen (2003)

Detailed reference viewed: 24 (3 ULg)
See detailDas Land der vielen Grenzen. Räume, Landschaft, Menschen
Brüll, Christoph ULg; Dries, Joseph; Quadflieg, Peter M.

in Lejeune, Carlo; Brüll, Christoph (Eds.) Grenzerfahrungen. Eine Geschichte der Deutschsprachigen Gemeinschaft Belgiens. Vol. 5: Säuberung, Wiederaufbau, Autonomiediskussionen (1945-1973) (2014)

„Landschaften, Räume sind nicht bloß vorhandene Realitäten, sondern auch und vor allem Überbleibsel der Vergangenheit. Vergangene Horizonte werden für uns neu gemalt, neu geschaffen durch die gebotenen ... [more ▼]

„Landschaften, Räume sind nicht bloß vorhandene Realitäten, sondern auch und vor allem Überbleibsel der Vergangenheit. Vergangene Horizonte werden für uns neu gemalt, neu geschaffen durch die gebotenen Spektakel: Die Erde ist, wie unsere Haut, dazu verdammt, die Spuren unserer alten Verletzungen zu bewahren.“ Diese Aussage des französischen Historikers Fernand Braudel ruft dazu auf, Landschaften und Räume zu lesen und zu interpretieren. Dies wollen wir als quasi institutionalisierten Einstieg in allen Bänden tun. Die Deutschsprachige Gemeinschaft – aktuell auf der Suche nach einem griffigeren Namen – ist ein zeitgenössisches Kunstgebilde. Diese Grenzlandschaft zwischen Maas und Rhein, zwischen deutschem und französischem Kulturraum sollte in jeder Zeit geografisch anders gefasst und in ihrer Wechselwirkung zu den Nachbarregionen dargestellt werden. In diesem Einstiegskapitel gilt es deshalb, die Region zunächst einfach geografisch zu umschreiben. Christoph Brüll, Joseph Dries und Peter M. Quadflieg haben dann gefragt: Was lässt sich an der Landschaft zwischen Göhl und Our für den Zeitraum von 1945 bis 1973 ablesen? Welche alten Verletzungen können wir beobachten? Welche zukunftsweisenden Entwicklungen lassen sich an der Landschaft bereits ablesen? [less ▲]

Detailed reference viewed: 53 (2 ULg)
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See detailLand erosion and associated evolution of clay minerals assemblages in Mediterranean region (Southern Turkey): Amik Lake
El Ouahabi, Meriam ULg; Hubert, Aurelia ULg; Lebeau, Helene et al

Poster (2015, July)

Under Mediterranean context, continuous human occupation is attested in the Amik Basin (southern Turkey) since 6000-7000 BC. The Basin also is crossed by The Dead Sea Fault (DSF), a major neotectonic ... [more ▼]

Under Mediterranean context, continuous human occupation is attested in the Amik Basin (southern Turkey) since 6000-7000 BC. The Basin also is crossed by The Dead Sea Fault (DSF), a major neotectonic structure in the Middle East extending from the Red Sea in the south to the East Anatolian Fault Zone in the north. The study focuses on the mineralogy and clay mineralogy record of the Amik Lake occupying the central part of the Basin. Our objective is to constrain major mineralogical and clay minerals evolution in the area over the last 4000 years and assess changes that would be related to the different land uses during the different Bronze, Roman, Ottoman and Modern civilizations. Sediments were collected at 1 to 2 cm intervals in core sediments up to a depth of 6 meters in the clay deposits. Geochemistry (XRF), mineralogy (XRD) and clay mineralogy are applied to study the sediment records. The age of the record is constrained combining radionuclide and radiocarbon dating. Chemical and mineralogical composition of sediments is quite diversified reflecting the significant geological variation of drainage basins. Abundant mixed-layer and partly disordered minerals characterize the different sedimentary levels recorded in those cores. Levels relatively rich in chlorite, illite and quartz are interpreted as corresponding to relatively dry periods, while more humid periods lead to more intensive weathering and consequently to the dominance of clay minerals more advanced in the relative stability scale, such as kaolinite. Smectite is taken to indicate a climate with contrasting seasons and a pronounced dry season. The sedimentary record clearly shows two periods indicating strong soil erosion in the Lake catchment. The most recent erosion phase is modern. The oldest one would have started during the late Bronze period and lasted until the late Roman Period. The first and older period is attributed to a strong aggradation linked to major increase in erosion. Our study shows that this episode has specific characteristics: mixed-layer clay mineral, high percent in Ni, Cr and Mg coupled with significant amount of organic matter of terrestrial origin. Ni and Mg most probably come from the Amanos Mountains an ophiolitic belt indicating an intensive upland cultivation and possible exploitation of its mineral resource. The second period is attributed to the modern period. The signature of the increase in erosion is different, because most of the soil cover has already been eroded. Only a patchy thin and unmature soil cover exists since the Late Roman time. Erosion is associated with a marked increase of smectite-illite interstratified clay, goethite and hematite found in deep soil horizons. Moreover, a marked increase in Cr is showed and is probably related to an enhanced exploitation of its mineral resource and to a renew land exploitation of the Amanos Mountain Range. [less ▲]

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See detailLand issue around the lands recovered in the region of Tahoua in Niger
Moussa dit Kalamou, Mahamadou; Lebailly, Philippe ULg; Yamba, Boubacar

in AGROFOR Journal International (2016), 1(1), 195-201

The present reflection analyzes the situation of farmlands and pastoral lands in the region of Tahoua in Niger in connection with the environmental conditions in a context marked by considerable regional ... [more ▼]

The present reflection analyzes the situation of farmlands and pastoral lands in the region of Tahoua in Niger in connection with the environmental conditions in a context marked by considerable regional demographic growth of 4.6% in 2012. These hinder the efforts of the country in the wrestling against food insecurity. It also analyzes the land stakes in this particular case, the intervention of the programs of recoveries of lands and the strategies developed by actors to guarantee their food security. It results from the synthesis of direct observations and from the inquiries on ground. The investigation realized in 2010 concerned 420 households distributed in twenty selected villages following a reasoned sampling and according to demographic weight of eight (8) departments of the region. The objective is to measure the impact of the land dynamics in fighting against the food insecurity and poverty of women in the region of Tahoua. It emerges from this study that 3% of the households without land; in spite of the average of nine (9) individuals by households, or approximately 2.62 hectares by field. The surfaces of fields vary from 0.11 to 17 hectares. Fields are located on trays, in the slum and at the level of dunes in agricultural zone. We attend an emergence of fields beyond the north end of the cultures. Most of the forest lands were transformed into areas of pasture, then into fields of culture after the development interventions. [less ▲]

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See detailLand Management for Urban Dynamics
Golay, F.; Halleux, Jean-Marie ULg

Conference given outside the academic context (2007)

Detailed reference viewed: 13 (0 ULg)
See detailLand Managment for Urban Dynamics. Innovative tools and practices in a changing Europe
Tira, M.; van der Krabben, E.; Zanon, B. et al

Book published by Maggioli Editore (2011)

Detailed reference viewed: 60 (11 ULg)
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Peer Reviewed
See detailLand rights as an engine of growth ? An analysis of Cambodian land grabs in the context of development theory
Rudi, Lisa-Marie; Azadi, Hossein ULg; Witlox, Frank et al

in Land Use Policy (2014), (38), 564-572

Forceful evictions have become a serious problem in Cambodia with an increasing number of fami-lies being deprived of their land, homes and livelihoods without compensation. This article analysesCambodian ... [more ▼]

Forceful evictions have become a serious problem in Cambodia with an increasing number of fami-lies being deprived of their land, homes and livelihoods without compensation. This article analysesCambodian land rights in the context of economic development theory. It assesses whether increas-ing economic inequalities, stemming from forceful evictions, can be categorized as an impediment toCambodian economic growth. The Cambodian case illustrates that a lack of good governance due tocorruption leads to the unequal distribution of land which, in turn, causes inequitable economic devel-opment. The paper concludes that Cambodia is trapped in a vicious cycle of inequality, which is upheld byelites who benefit from evictions and land concessions while evictees become trapped in poverty. Giventhat the population is growing angrier, the article warns of potential for a violent revolution that couldhave disastrous consequences for the Cambodian kingdom, a country that recently emerged from yearsof civil conflicts and is still in the process of rebuilding its social fabric. [less ▲]

Detailed reference viewed: 85 (15 ULg)
See detailLand Subsidence in Shanghai (P.R. CHINA)
Baeteman, Cécile; Dassargues, Alain ULg; Schroeder, Christian ULg et al

in Proc. of XIII Int. Conf. of the Int. U. for Quater. Res (1991)

Detailed reference viewed: 60 (3 ULg)
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See detailLand subsidence in Shanghai: hydrogeological conditions and subsidence measurements
Dassargues, Alain ULg; Zhang, J.

in Bulletin of Engineering Geology & the Environment (1992), 46

Detailed reference viewed: 43 (6 ULg)
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See detailLand use and land cover change analysis 1990-2002 in Binh Thuan Province, south central Vietnam
Hountondji, Yvon ULg; Ozer, Pierre ULg

in Proceedings of the 1st International Conference on Energy, Environment and Climate Change (2011, August 26)

Describing the nature and extent of land resources and changes over time has become increasingly important, especially in developing countries. In this study, two Landsat satellite image scenes were ... [more ▼]

Describing the nature and extent of land resources and changes over time has become increasingly important, especially in developing countries. In this study, two Landsat satellite image scenes were examined to identify land use and land cover changes in Binh Thuan province (Vietnam) between 1990 and 2002. Classification accuracies were based upon ground truth data obtained by global positioning system and field collection. A post-classification comparison analysis was used to identify areas that have experienced conversions in land use and land cover. Comparisons of the land cover maps reveal that a steady growth in population has caused extensive changes of land cover throughout the area. The maps also indicate that the loss of woody land (forest) and the extension of wetlands (irrigate area), combined with built-up encroachment, remains one of the most serious environmental problems facing the Binh Thuan Province today. The post-classification change detection analysis showed that critical habitats accounted for nearly 38.5% of the total intensive study area between 1990 and 2002 while 61.5% remained stable. Results also showed over the 12-year span, approximately 1151.2 km² (115.120 ha) forest were converted respectively to brush, irrigated area (wetlands), cropland and built-up. This is an overall average decrease of approximately 9594 hectares of forested area per year. Throughout the study area, districts most affected by forest conversion to another land cover are: Bac Bihn (2798 ha/year), Than Linh (2717 ha/year), Ham Thuan Nam (1601 ha/year) and Ham Thuan Bac (1524 ha/year). Based on the identified causes of these changes, we made policy recommendations for better management of land use and land cover. [less ▲]

Detailed reference viewed: 90 (9 ULg)
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See detailLand Values
Halleux, Jean-Marie ULg; Huls, J.; Merenne-Schoumaker, Bernadette ULg

Report (2008)

Detailed reference viewed: 11 (4 ULg)