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See detailIntégration et unité
Close, Florence ULg; Schneider, Jens; Kaschke, Sören

Article for general public (2010)

Notice de vulgarisation scientifique consacrée aux moyens d'unification du royaume puis de l'empire franc développé sous le règne des premiers carolingiens

Detailed reference viewed: 6 (0 ULg)
See detailIntegration Issues of Migrants in Europe, Experts Meeting Gaining from Migration.
Martiniello, Marco ULg

Scientific conference (2007, March 29)

Detailed reference viewed: 3 (0 ULg)
See detailIntégration numérique de fonctions singulières introduites par la méthode X-FEM pour la fissuration
Minnebo, Hans; Béchet, Eric ULg; Moës, Nicolas et al

Scientific conference (2004)

Detailed reference viewed: 42 (9 ULg)
Peer Reviewed
See detailIntégration numérique de fonctions singulières introduites par la méthode X-FEM pour la fissuration
Minnebo, Hans; Béchet, Eric ULg; Moës, Nicolas et al

Conference (2004)

Detailed reference viewed: 18 (7 ULg)
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Peer Reviewed
See detailIntegration of 3D information in Urban GIS :a conceptual view
Billen, Roland ULg

in Proceedings of the ISPRS 2000 (2000)

Detailed reference viewed: 23 (3 ULg)
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Peer Reviewed
See detailIntegration of a Bottom-Up Production Cost Model in LBR-5 Optimization Tool
Toderan, Catalin; Pircalabu, Eugen ULg; Caprace, Jean-David ULg et al

in Conference on Computer Applications and Information Technology in the Maritime Industries (COMPIT) (2007, April)

The LBR-5 software allows the optimization of ship structures following different objectives as the highest inertia, least weight and/or least cost. The interest of European shipyards to optimize the ship ... [more ▼]

The LBR-5 software allows the optimization of ship structures following different objectives as the highest inertia, least weight and/or least cost. The interest of European shipyards to optimize the ship structure is basically related to the production cost and mainly to the labor cost. In order to increase the quality of cost estimation, a bottom-up module has been developed by University of Liege in partnership with AKERYARDS France. This module has been validated on different types of ships (LNG, Cruise Vessels, Fast Ferry) and integrated in the LBR-5 optimization process. The bottom-up cost module has two important goals. The first one is to estimate accurately the labor cost of a given ship structure taking into account the production breakdown, the block splitting sequence and all the individual operations required by the fabrication process. The second one is to compute properly the sensitivities of the design objective (construction cost) related to the design variables (scantlings). The paper also presents the results of a validation test on a large passenger vessel. The effect of the bottom-up cost module on the optimal scantling and on the cost gain is highlighted through a comparison with the results obtained using a basic cost module. [less ▲]

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See detailIntegration of a new hysteresis model in the Finite Elements method
Scorretti, Riccardo; V Sabariego, Ruth ULg; Sixdeniers, F. et al

(2011)

In this work we present an original magnetic hysteresis model with parameters fitted from measured reversal curves. This model is used together with the Finite Element method for studying a structure ... [more ▼]

In this work we present an original magnetic hysteresis model with parameters fitted from measured reversal curves. This model is used together with the Finite Element method for studying a structure composed of a magnetic core with air-gap excited by a coil. [less ▲]

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See detailIntegration of accurate 2D inundation modelling, vector land use database and economic damage evaluation
Ernst, Julien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

in Proceedings of the European Conference on Flood Risk Management - FloodRisk 2008 (2008)

Within the global framework of the climate change, according to most Regional Climate Mod-els the maximum peak discharges in river will increase in importance and frequency. Therefore the people will have ... [more ▼]

Within the global framework of the climate change, according to most Regional Climate Mod-els the maximum peak discharges in river will increase in importance and frequency. Therefore the people will have to face worst inundation conditions. In order to protect themselves from the increasing flood risk, the communities have to draw up suitable flood protection measures. The selection and the evaluation among the different possible flood mitigation measures requires developing decision-support system (DSS). This sys-tem has to take into consideration parameters such as hydraulic, economic, social or environmental. This pa-per focuses on the integration between two components of the DSS, namely the evaluation of the economic impacts of floods and the hydrodynamic modelling. The hydraulic simulations are conducted by means of WOLF 2D flow modelling system and provide as an output high resolution flood maps detailing the distribu-tion of water depth and flow velocity in the floodplains. The integration is ensured by the use of very accurate geographic databases and an automated procedure which makes the most of geomatic methods. The paper de-tails the application of the integrated assessment procedure for a case study along the river Ourthe located in the Meuse basin (Belgium). Moreover, possibilities of validation of the economic damage evaluation proce-dure are investigated by comparing computation results with real damage data recorded by the Belgian Disas-ter Fund after several major flood events (2003, 2002, 1995, and 1993). [less ▲]

Detailed reference viewed: 102 (17 ULg)
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See detailIntegration of Accurate 2D Inundation Modelling, Vector Land Use Database and Economic Evaluation
Ernst, Julien ULg; Dewals, Benjamin ULg; Archambeau, Pierre ULg et al

Poster (2008, October 02)

Within the global framework of the climate change, according to most Regional Climate Mod-els the maximum peak discharges in river will increase in importance and frequency. Therefore the people will have ... [more ▼]

Within the global framework of the climate change, according to most Regional Climate Mod-els the maximum peak discharges in river will increase in importance and frequency. Therefore the people will have to face worst inundation conditions. In order to protect themselves from the increasing flood risk, the communities have to draw up suitable flood protection measures. The selection and the evaluation among the different possible flood mitigation measures requires developing decision-support system (DSS). This sys-tem has to take into consideration parameters such as hydraulic, economic, social or environmental. This pa-per focuses on the integration between two components of the DSS, namely the evaluation of the economic impacts of floods and the hydrodynamic modelling. The hydraulic simulations are conducted by means of WOLF 2D flow modelling system and provide as an output high resolution flood maps detailing the distribu-tion of water depth and flow velocity in the floodplains. The integration is ensured by the use of very accurate geographic databases and an automated procedure which makes the most of geomatic methods. The paper de-tails the application of the integrated assessment procedure for a case study along the river Ourthe located in the Meuse basin (Belgium). Moreover, possibilities of validation of the economic damage evaluation proce-dure are investigated by comparing computation results with real damage data recorded by the Belgian Disas-ter Fund after several major flood events (2003, 2002, 1995, and 1993). [less ▲]

Detailed reference viewed: 50 (15 ULg)
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See detailIntegration of data from different marker panels: current applications in human genetics
Druet, Tom ULg

in Interbull Bulletin (2010)

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See detailAn integration of external information for foreign stallions into the Belgian genetic evaluation for jumping horses
Vandenplas, Jérémie ULg; Janssens, Steven; Buys, Nadine et al

in Journal of Animal Breeding & Genetics (2013), 130(3), 209-217

The aim of this study was to test the integration of external information, i.e. foreign estimated breeding values (EBV) and the associated reliabilities (REL), for stallions into the Belgian genetic ... [more ▼]

The aim of this study was to test the integration of external information, i.e. foreign estimated breeding values (EBV) and the associated reliabilities (REL), for stallions into the Belgian genetic evaluation for jumping horses. The Belgian model is a bivariate repeatability Best Linear Unbiased Prediction animal model only based on Belgian performances while Belgian breeders import horses from neighbouring countries. Thereby, use of external information is needed as prior to achieve more accurate EBV. Pedigree and performance data contained 101,382 horses and 712,212 performances, respectively. After conversion to the Belgian trait, external information of 98 French and 67 Dutch stallions were integrated into the Belgian evaluation. Resulting Belgian rankings of the foreign stallions were more similar to foreign rankings according to the increase of the rank correlations of at least 12%. REL of their EBV were improved of at least 2% on average. External information was partially to totally equivalent to 4 years of contemporary horses’ performances or to all the stallions’ own performances. All these results showed the interest to integrate external information into the Belgian evaluation. [less ▲]

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See detailIntegration of external information into genetic evaluations by a Bayesian procedure
Vandenplas, Jérémie ULg; Gengler, Nicolas ULg

Poster (2012, February 10)

One of the most important theoretical assumptions of methods used to assess genetic values is that all available information has to be considered simultaneously to obtain unbiased estimates. However, the ... [more ▼]

One of the most important theoretical assumptions of methods used to assess genetic values is that all available information has to be considered simultaneously to obtain unbiased estimates. However, the widespread international exchange of genetic material and, more recently, the important development of the genomic selection lead to the coexistence of different genetic evaluations. Therefore, the blending of the different sources of information is necessary to achieve better prediction. Integration of external information into genetic evaluations by a Bayesian procedure can partially resolve the problem under some assumptions. Results from such a method that also avoids double counting among external animals are highly similar to those from a joint evaluation. [less ▲]

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See detailIntegration of farmers in the shrimp subsector in the Mekong River Delta, Vietnam
Ho, Thi Minh Hop ULg

Doctoral thesis (2012)

Hatcheries, input dealers, farmers, collectors and processors are the primary actors of shrimp value chain in the Mekong River Delta (MRD) Vietnam, a sector that has many problems of disease, shrimp seed ... [more ▼]

Hatcheries, input dealers, farmers, collectors and processors are the primary actors of shrimp value chain in the Mekong River Delta (MRD) Vietnam, a sector that has many problems of disease, shrimp seed, environmental pollution, and management skills. Holding the strongest power in the shrimp value chain, the processors determine shrimp prices and set up requirements of shrimp quality and size in the market though quality control has not been completely implemented due to the limitations of financial capital, knowledge, awareness, as well as the quality of raw material supplied by collectors and farmers. Farmers stayed in the weakest position in the chain due to their small individual scale, and low skills. The results of the study show that most of the shrimp farmers stay out of vertical integration under farming contracts while the rest joined in the game without success. Contract farming seems not for small scale farmers who account for a large part in the MRD, and not interesting for producers who get success with their cultivation. Farmers prefer a non-contract option due to non-transparency of interest share as well as cost account. Food safety standards, decision No. 80/2002/QĐ-TTg, culture, trust, government structure, credit support and corruption are the main factors affecting farmers’ integration chances. Floor price mechanism, risk sharing, small scale of the model of vertical integration and excess suppliers in the market, administrative misconception and inefficient public management are the main reasons of failures of contract farming of two case studies in the MRD. Planning and projection of shrimp production zones are therefore the priority matters to address. Furthermore, re-organizing shrimp farmers into legal teams or groups or cooperatives is also necessary to increase the size of the existing shrimp cultivation units in Vietnam in order to improve the sector. [less ▲]

Detailed reference viewed: 95 (11 ULg)
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See detailIntegration of foreign breeding values for stallions into the Belgian genetic evaluation for jumping horses
Vandenplas, Jérémie ULg

Master's dissertation (2010)

The aim of this study was to test the integration of foreign breeding values for stallions into the Belgian genetic evaluation of jumping horses. Belgian breeders import horses from neighbouring countries ... [more ▼]

The aim of this study was to test the integration of foreign breeding values for stallions into the Belgian genetic evaluation of jumping horses. Belgian breeders import horses from neighbouring countries for which foreign information is needed as prior to estimate a more accurate breeding value. The Belgian model is a bivariate repeatability BLUP animal model. For the year 2009, pedigree and data files provided by the Catholic University of Leuven contained 101 382 horses and 712 212 performances. 98 French and 67 Dutch stallions were selected and their foreign estimated breeding values had to be converted into Belgian national trait. Also, the associated reliabilities had to be estimated. Then, this prior information was integrated into the Belgian evaluation using a Bayesian approach. It led to a slight modification of the average estimated breeding value and of the standard deviation for the whole population. It also led to a new Belgian ranking of the foreign stallions more similar to foreign rankings. However, despite these modifications, the adequacy of the Belgian model was not damaged. Within regards to prediction ability, Bayesian evaluations using the conversion equation estimated by the Weighted Least Squares procedure predicted the best traditional estimated breeding values of the year 2009 for the French stallions. For the Dutch ones, it were the evaluations associated to the Wilmink‟s conversion equation. For both countries, Bayesian evaluations using Goddard‟s conversion method improved most the stability of breeding values. Finally, integration of French and Dutch information improved reliabilities of the Bayesian estimated breeding values. [less ▲]

Detailed reference viewed: 96 (30 ULg)
See detailIntegration of foreign breeding values for stallions into the Belgian genetic evaluation for jumping horses
Vandenplas, Jérémie ULg; Janssens, Steven; Gengler, Nicolas ULg

in Book of Abstracts of the 62nd Annual Meeting of the European Federation of Animal Science (2011, August)

The aim of this study was to test the integration of foreign estimated breeding values (EBV) for stallions into the Belgian genetic evaluation for jumping horses. Belgian breeders import horses from ... [more ▼]

The aim of this study was to test the integration of foreign estimated breeding values (EBV) for stallions into the Belgian genetic evaluation for jumping horses. Belgian breeders import horses from neighbouring countries for which foreign information is needed as prior to estimate a more accurate EBV. The Belgian model is a bivariate repeatability BLUP animal model. For the year 2009, pedigree and data files contained 101 382 horses and 712 212 performances. 98 French and 67 Dutch stallions were selected and their foreign EBVs were converted into Belgian national trait. Associated reliabilities were also estimated. A Bayesian approach (Legarra et al., 2007) was applied to integrate this prior information into the Belgian evaluation. It led to a slight modification of the average EBV and of the standard deviation for the whole population. It also led to a new Belgian ranking of the foreign stallions more similar to foreign rankings. However, the adequacy of the Belgian model was not damaged. With regards to prediction ability, Bayesian evaluations using conversion equation estimated by Weighted Least Squares procedure predicted the best traditional EBVs of the year 2009 for the French stallions. For the Dutch ones, it were the evaluations associated to the conversion equation based on Wilmink et al. (1986). For both countries, Bayesian evaluations using conversion equation based on Goddard (1985) improved the most the stability of EBVs. Finally, integration of French and Dutch information improved reliabilities of the Bayesian EBVs of at least 5% and 2% for French and Dutch stallions, respectively. These results confirm the interest to integrate foreign information into the Belgian evaluation for jumping horses. [less ▲]

Detailed reference viewed: 112 (14 ULg)
Full Text
See detailIntegration of foreign breeding values for stallions into the Belgian genetic evaluation for jumping horses
Vandenplas, Jérémie ULg; Janssens, Steven; Gengler, Nicolas ULg

Poster (2011, August 30)

The aim of this study was to test the integration of foreign estimated breeding values (EBV) for stallions into the Belgian genetic evaluation for jumping horses. Belgian breeders import horses from ... [more ▼]

The aim of this study was to test the integration of foreign estimated breeding values (EBV) for stallions into the Belgian genetic evaluation for jumping horses. Belgian breeders import horses from neighbouring countries for which foreign information is needed as prior to estimate a more accurate EBV. The Belgian model is a bivariate repeatability BLUP animal model. For the year 2009, pedigree and data files contained 101 382 horses and 712 212 performances. 98 French and 67 Dutch stallions were selected and their foreign EBVs were converted into Belgian national trait. Associated reliabilities were also estimated. A Bayesian approach (Legarra et al., 2007) was applied to integrate this prior information into the Belgian evaluation. It led to a slight modification of the average EBV and of the standard deviation for the whole population. It also led to a new Belgian ranking of the foreign stallions more similar to foreign rankings. However, the adequacy of the Belgian model was not damaged. With regards to prediction ability, Bayesian evaluations using conversion equation estimated by Weighted Least Squares procedure predicted the best traditional EBVs of the year 2009 for the French stallions. For the Dutch ones, it were the evaluations associated to the conversion equation based on Wilmink et al. (1986). For both countries, Bayesian evaluations using conversion equation based on Goddard (1985) improved the most the stability of EBVs. Finally, integration of French and Dutch information improved reliabilities of the Bayesian EBVs of at least 5% and 2% for French and Dutch stallions, respectively. These results confirm the interest to integrate foreign information into the Belgian evaluation for jumping horses. [less ▲]

Detailed reference viewed: 41 (12 ULg)
Peer Reviewed
See detailIntegration of fuzzy linear optimization and scenario analysis in network flow problems: disaster response perspective
Barbarosoglu, Gulay; Arda, Yasemin ULg

in IEPM 01, International Conference in Industrial Engineering and Production Management, Québec, Canada, 20-23 August 2001 (2001, August 20)

In this paper, we address the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and the ... [more ▼]

In this paper, we address the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and the principles of scenario analysis. We treat this transportation system as a probabilistic multi-commodity multi-modal network flow problem and first develop a fuzzy model that allows the satisfaction of demand requirements through different supply nodes over a fuzzy network. Since the available information in case of disasters is generally vague and imprecise about the values of model parameters, fuzzy linear optimization is employed to deal with this uncertainty and to generate different scenarios depending upon the preferences of the decision maker. Then these scenarios are handled within the framework of the scenario analysis by defining a scenario as a joint realization of the uncertain parameters. Here, scenario analysis method can be considered as a search for a robust solution that guarantees the maximum satisfaction of demands with the minimum transportation cost. [less ▲]

Detailed reference viewed: 32 (1 ULg)
See detailIntegration of fuzzy optimization and stochastic programming in multi-commodity network flow problems
Arda, Yasemin ULg

Master's dissertation (2001)

This study analyzes the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and stochastic ... [more ▼]

This study analyzes the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and stochastic programming. This transportation system is treated as a probabilistic, multi-commodity, multi-modal network flow problem and first a fuzzy model that allows the satisfaction of demand requirements through different supply nodes over a fuzzy network is developed. Since the available information in case of disasters is generally vague and imprecise about the values of model parameters, fuzzy linear optimization is employed to deal with this uncertainty and to generate different scenarios depending upon the preferences of the decision maker. Then these scenarios are handled within the framework of stochastic programming by defining a scenario as a joint realization of the uncertain parameters. Multi-commodity network flow problem is decomposed into uncapacitated single-commodity network flow problems by using Lagrangian relaxation. An exact algorithm is developed for each subproblem, and a sequential structure is designed to maintain consistency and feasibility between the solutions of these subproblems. [less ▲]

Detailed reference viewed: 39 (3 ULg)
See detailIntegration of III-V on Si for High-Mobility CMOS
Waldron, Niamh; Wang, Gang; Nguyen, Ngoc Duy ULg et al

Conference (2012)

Detailed reference viewed: 47 (0 ULg)