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See detailProduction Planning in Automated Manufacturing
Crama, Yves ULg; Oerlemans, Alwin; Spieksma, Frits

Book published by Springer-Verlag - première édition (1994)

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See detailProduction planning problems in printed circuit board assembly
Crama, Yves ULg; van de Klundert, Joris; Spieksma, Frits CR

in Discrete Applied Mathematics (2002), 123(1-3), 339-361

This survey describes some of the main optimization problems arising in the context of production planning for the assembly of printed circuit boards. The discussion is structured around a hierarchical ... [more ▼]

This survey describes some of the main optimization problems arising in the context of production planning for the assembly of printed circuit boards. The discussion is structured around a hierarchical decomposition of the planning process into distinct optimization subproblems, addressing issues such as the assignment of board types to machine groups, the allocation of component feeders to individual machines, the determination of optimal production sequences, etc, The paper reviews the literature on this topic with an emphasis on the most recent developments, on the fundamental structure of the mathematical models and on the relation between these models and some 'environmental' variables such as the layout of the shop or the product mix. (C) 2002 Elsevier Science B.V, All rights reserved. [less ▲]

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See detailProduction porcine et environnement
Debouche, Charles ULg

Scientific conference (2001, September 19)

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See detailProduction potentielle de bioéthanol, de biométhane et de pellets à partir des déchets de biomasse lignocellulosique du bananier (Musa spp.) au Cameroun
Kamdem, Irenée ULg; Tomekpe, Kodjo; Thonart, Philippe ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(3), 471-483

Like most African countries who are producers and exporters of banana, Cameroon is facing a major energy deficit. Yet, the country is generating annually about 4,500,000 tons of fresh banana plant ... [more ▼]

Like most African countries who are producers and exporters of banana, Cameroon is facing a major energy deficit. Yet, the country is generating annually about 4,500,000 tons of fresh banana plant lignocellulosic waste biomass matter equivalent to 402,750 tons of dry matter. The dry matter contained about 80,57% organic matter which are not exploited. Under the sustainable development, which is linked to environmental protection, the biotransformation of these residues can potentially produce about 93,800; 92,133; 447,500 tons of bioethanol, biomethane and pellets respectively. The waste transformation could reduce the energy deficit and create jobs opportunities. Productions of this renewable energy or biofuel also constitute a new area which could assure an important source of income for the banana cultivators and the entire country. [less ▲]

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See detailProduction subjective de rêve en milieu carcéral : une hypothèse adaptative
Englebert, Jérôme ULg; Gauthier, Jean-Marie ULg; Jacquemart, Catherine

Poster (2011)

Une étude sur le rêve n’est pas sans poser plusieurs questions épistémologiques et méthodologiques majeures. La première d’entre elles tient à l’essence même du rêve qui est un objet d’étude particulier ... [more ▼]

Une étude sur le rêve n’est pas sans poser plusieurs questions épistémologiques et méthodologiques majeures. La première d’entre elles tient à l’essence même du rêve qui est un objet d’étude particulier, étant strictement subjectif et difficilement objectivable. Le rêve n’existe dans la vie consciente qu’au passé ; il a une conscience uniquement rétrospective. Il existe donc un décalage temporel entre l’activité onirique et le discours sur le rêve. Ce hiatus temporel condamne donc le rêve à nous échapper dans sa finitude et pousse le chercheur à capituler face à la connaissance ultime et globale du monde imaginaire de l’individu. L’étude que nous avons réalisée se veut d’inspiration phénoménologique. Nous avons administré un questionnaire (questionnaire élaboré sous la supervision d’un collège d’experts travaillant en milieu carcéral) à une population de 48 détenus (43 hommes et 5 femmes) et à une population contrôle (appariée pour l’âge et le niveau d’étude). Le questionnaire était scindé en deux parties pour les détenus (rapport aux rêves avant l’enfermement [Gd.0] / rapport aux rêves maintenant [Gd.1]) et celui pour la population contrôle ne comprenait qu’une partie (rapport aux rêves maintenant [Gc]). Enfin, nous avons isolé trois groupes au sein de la population carcérale : Cp : Courte peine effectuée (maximum 90 jours), MP : Moyenne peine effectuée (plus de 90 jours et maximum 2 ans), LP : Longue peine effectuée (plus de 2 ans). Les résultats, qu’il conviendra de discuter dans le détail, mettent en évidence que l’activité onirique serait un mécanisme que le détenu utilise pour s’adapter à l’univers carcéral (la fréquence subjective de rêve et l’intérêt porté à ses rêves sont significativement plus importants pour le Gd.1 que le Gd.0 et le Gc). Mais ce constat tend à diminuer en fonction de la durée de la peine (au-delà de 2 ans d’enfermement [LP]). Nous pouvons expliquer cette diminution significative par un effet d’habituation (le rêve aurait permis un retour à une homéostasie psychique suffisante) ou par une abrasion du mécanisme. En effet, le rêve ne procurerait aucune modification dans le réel puisque le quotidien de l’enfermement reste le même. Privée de boucle de rétroaction, la fonction adaptative du rêve s’essoufflerait. [less ▲]

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See detailProduction, automatic delivery and bolus injection of O-15 water for positron emission tomography studies
VanNaemen, John; Monclus, Michel; Damhaut, Philippe et al

in Nuclear Medicine and Biology (1996), 23(4), 413-416

An automatic system allowing repetitive bolus injection of oxygen-15-labeled water for PET studies is described in this report. The production of this radiopharmaceutical by the 16O(p,pn)15O nuclear ... [more ▼]

An automatic system allowing repetitive bolus injection of oxygen-15-labeled water for PET studies is described in this report. The production of this radiopharmaceutical by the 16O(p,pn)15O nuclear reaction on H216O, its purification and delivery nearby the PET camera, the injection system, and the quality controls are presented. [less ▲]

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See detailProduction, Formulation And Antagonistic Activity Of The Biocontrol Like-Yeast Aureobasidium Pullulans Against Penicillium Expansum
Mounir, R.; Durieux, A.; Bodo, E. et al

in Biotechnology Letters (2007), 29(4), 553-559

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See detailProduction, Operation and Robustness Module
Caprace, Jean-David ULg; Bair, Frédéric ULg; Hübler, Michael et al

(2009, September)

Nowadays, simulation and Life Cycle Cost (LCC) assessment becomes more and more important in shipbuilding industry. In order to survive in the competitive market environment, manufacturers now have to ... [more ▼]

Nowadays, simulation and Life Cycle Cost (LCC) assessment becomes more and more important in shipbuilding industry. In order to survive in the competitive market environment, manufacturers now have to consider reducing the cost of the entire life cycle of a product, called LCC. This research was initiated with the idea of developing a methodology/framework to be able to assess the life cycle cost/earning of production and maintenance/repair with respect to the scantlings structural optimization variables to be used during the conceptual ship design stage. Three main modules as been implemented during this project: A life cycle cost/earning of production and maintenance/repair, a detailed Discrete Event Simulation (DES) for production and scheduling and a design robustness of the structural solution related to various fabrication and operational parameters. These three modules as well as the main results are briefly presented here. [less ▲]

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See detailProduction, Private Economy and State Entanglement in Early Northern Mesopotamia
Mas, Juliette ULg

Conference (2014, June)

Ancient economic systems from Southern and Central Mesopotamia are quite well known when Northern Mesopotamia ones remain less known from this point of view. If we already know that, during Bronze Age ... [more ▼]

Ancient economic systems from Southern and Central Mesopotamia are quite well known when Northern Mesopotamia ones remain less known from this point of view. If we already know that, during Bronze Age, households played a deciding role in several kinds of production, their degree of dependence or independence to the State still has to be cleared. The archaeological data clearly show that private workshops, set up in private houses, could be very efficient and specialized. Furthermore, these economic entities could be assimilated to private enterprises, which were able to handle their own administrative duties. On the other hand, we know from the texts that the Palace and the temples were also a main element of ancient economic systems. If public administrations should, in some cases, have supplied raw materials, hired workforce, and dealt with the distribution of produced goods, it seems that the production didn’t take place in the palace itself. Dealing both with archaeological and textual data, could help to better define the role and the importance of both public and private components in early Mesopotamian economic systems. [less ▲]

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See detailProduction, transformation artisanale et commercialisation locale des produits alimentaires traditionnels au Vietnam: le cas du vermicelle de tolomane à Hung Yen
Le, Thi Long Vy ULg

Doctoral thesis (2014)

In Vietnam, the vermicelli of Canna edulis Ker Gawl. (C. indica L.) is an artisanal and traditional product, regularly consumed in the festive occasions. From Canna edulis Ker Gawl cultivation to trading ... [more ▼]

In Vietnam, the vermicelli of Canna edulis Ker Gawl. (C. indica L.) is an artisanal and traditional product, regularly consumed in the festive occasions. From Canna edulis Ker Gawl cultivation to trading of vermicelli of Canna edulis at the local level, the vermicelli commodity chain belongs to peasant economy with many actors involved. This research aims at a better understanding of how the actors of vermicelli commodity chain adapt to current socio-economic and environmental conditions of the villages which belong to two communes (Tu Dan and Yen Phu) located in Hung Yen Province. The surveys among 90 farmers and discussions with a group of producers who cultivate the canna and practice flour processing, and a group of vermicelli processors have been carried out from 2010 to 2012. According to our research results, vermicelli commodity chain has created a considerable additional quantity of jobs for local people within the villages of vermicelli processing and the neighboring ones. Thanks to these activities, the rural households income and production investment have been increased. Net income estimated per hectare of canna is about 22.2 million VND (about 822 €), and nearly 4.5 million VND (167 €) per ton of flour produced, and up to 1.7 million VND per ton of vermicelli product (about 63 €). In addition, these activities allow to diversify the sources of family incomes in the countryside. These activities also contribute to stabilize and increase the living standard of farmers (in 2010, the net family income (NFI) due to canna production accounted for 8% to 34 % of farming income; the NFI of vermicelli processing represented between 35% and 86 % of total processing family income). The value-added generated from this vermicelli commodity chain is important, up to 186 million VND (about 7,900 €) per hectare of canna, in which 38 % for flour processing; 20% for vermicelli processing and 20 % for canna cultivators. Thus, the vermicelli commodity chain contributes to meet a specific demand for traditional food in Vietnam. This chain contributes to the rural economy of traditional villages through improving the sources of familial income. However, it is necessary to increase the product quality and to improve the vertical and horizontal linkages between the actors in order to guarantee the sustainable development of this vermicelli chain. [less ▲]

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See detailProduction, transport and sinks of organic atter and associated elements in marine systems: air-sea interactions.
Bouquegneau, Jean-Marie ULg; Bourge, Isabelle; Dauby, Patrick ULg et al

in Vanderborght, O.; Janssens, E. (Eds.) IGBP and "Global Change" related Research in Belgium, II (1994, October)

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See detailProduction,digestion et absorption des acides gras chez le ruminant
Cuvelier, Christine ULg; Cabaraux, Jean-François ULg; Dufrasne, Isabelle ULg et al

in Annales de Médecine Vétérinaire (2005), 149(1), 49-59

From a biochemical point of view, in ruminants, there are two major groups of fatty acids. They are firstly the volatile fatty acids from the rumen metabolism of dietary carbohydrates, and secondly the ... [more ▼]

From a biochemical point of view, in ruminants, there are two major groups of fatty acids. They are firstly the volatile fatty acids from the rumen metabolism of dietary carbohydrates, and secondly the fatty acids from the rumen metabolism of lipids. This second group is made of the fatty acids synthesized by the microorganisms of the rumen and the fatty acids originating from the hydrolysis of dietary triacylglycerols, which are mostly hydrogenated by microorganisms in the rumen before intestinal absorption. In such conditions, the absorbed fatty acids are always more saturated than the ingested fatty acids. [less ▲]

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