Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
See detailMise en place d’un système de mesure par covariance de turbulence des flux de N2O sur une parcelle agricole
Lognoul, Margaux ULg

Master's dissertation (2015)

Nitrous oxide (N2O) is a greenhouse gas responsible for 8% of anthropogenic radiative forcing. It is also a major contributor to stratospheric ozone depletion. Agricultural soils represent its main source ... [more ▼]

Nitrous oxide (N2O) is a greenhouse gas responsible for 8% of anthropogenic radiative forcing. It is also a major contributor to stratospheric ozone depletion. Agricultural soils represent its main source. N2O is produced by microorganisms through nitrification and denitrification processes. Both depend on oxygenation conditions and nitrogen and labile carbon availability, which are driven by soil and climate conditions and by farming practices. Yet there remain science gaps concerning the understanding of emission mechanisms and dynamics. The eddy covariance technique allows studying a whole ecosystem with a half-hourly temporal resolution, opening up for long-term monitoring and precise greenhouse gas budget calculation. However, this technique requires a specific expertise. In order to install such a system to measure N2O exchanges by a production crop at the Terrestrial Observatory of Lonzée (Belgium), we set the following goals : (1) establishing the state of knowledge concerning N2O fluxes exchanged by crops and identifying gaps, (2) setting up a N2O analyzer at the experimental site and providing operating procedures, and (3) building and adjusting the first data processing and calculation procedures. As a result of this work, scientific gaps were identified and avenues for further research are suggested. Monitoring and data acquisition routines as well as first data processing procedures were implemented. Numerous questions still remain regarding the adaptation of classical methods (created to study CO2) to N2O, and they constitute the investigation prospects of this work. [less ▲]

Detailed reference viewed: 57 (17 ULg)
Full Text
See detailLa mise en place d’un tableau de bord prospectif avec la Balanced ScoreCard
Van Caillie, Didier ULg; Marthoz, Cédric

Conference given outside the academic context (2004)

This seminar investigates how to increase the performance of a management control system by incorporating a Balanced ScoreCard.

Detailed reference viewed: 172 (33 ULg)
Full Text
Peer Reviewed
See detailMise en place d’une Sélection Assistée par Marqueurs dans les trois principales races bovines laitières françaises
Fritz, S.; Colleau, J. J.; Druet, Tom ULg et al

in Renc. Rech. Ruminants, 2003, 10 (2003)

Detailed reference viewed: 6 (2 ULg)
Full Text
See detailMise en place d’une session d’interrogations formatives au mois de novembre: impact sur la motivation et les performances ultérieures des étudiants
Mignon, Jacques ULg; Closset, Jean-Louis ULg

in Actes du 24e congrès de l’Association internationale de pédagogie universitaire (AIPU) (2007)

Detailed reference viewed: 26 (7 ULg)
Full Text
See detailMise en place d’une stratégie de communication et de contrôle de la qualité écologique et sociale fondée sur l’étiquetage, les indications de qualité et la force de marque pour les vêtements, les articles de sport et les voitures
Fraselle, Nadine; Van Caillie, Didier ULg

Report (2005)

This report describes which are the practices implemented by firms in the furnishment industry, in the auto industry and in the sport industry to signal and to control the external Ecological and Societal ... [more ▼]

This report describes which are the practices implemented by firms in the furnishment industry, in the auto industry and in the sport industry to signal and to control the external Ecological and Societal Quality of their products. [less ▲]

Detailed reference viewed: 66 (2 ULg)
Full Text
See detailMise en place d’une typologie des pierres à aiguiser. Application à cinq sites gallo-romains
Thiebaux, Aurélie ULg; Goemaere, Eric; Hanut, Frédéric et al

Poster (2013, April 27)

Detailed reference viewed: 16 (1 ULg)
Full Text
See detailMise en place de différentes stratégies visant à favoriser l’approche « push-pull » pour le contrôle des pucerons en cultures maraîchères dans l’est de la Chine
Chevalier Mendes Lopes, Thomas ULg

Master's dissertation (2011)

The Chinese farmers apply a lot of pesticides in their vegetable crops. This situation, due to the socio-economic context of the rural population of the country, affects the food security. This work aims ... [more ▼]

The Chinese farmers apply a lot of pesticides in their vegetable crops. This situation, due to the socio-economic context of the rural population of the country, affects the food security. This work aims to study alternatives to the intensive use of synthetic pesticides, namely by the establishment of “push-pull” strategies, in courgettes and potato fields. We used three semiochemicals, the (E)-β-farnésène, the (Z)-3-Hexenyl acetate and a garlic extract and intercropping with pea. The effect of these treatments in the populations of aphidiphagous beneficial insects was determined by five weeks of insect trapping and observations on the plants. The results indicate that none of the modalities has a significant effect on the populations of beneficial insects and aphids. However, we observed some trends, especially with the (E)-β-farnésène in the courgettes fields. In addition, information sheets were made to inform and raise awareness of the Chinese farmers about the use of pesticides and the role of beneficial insects in the control of aphid populations. [less ▲]

Detailed reference viewed: 175 (17 ULg)
Full Text
See detailMise en place de l'analyse par LC/MSMS des métanéphrines
LE GOFF, Caroline ULg

Conference (2012)

Detailed reference viewed: 15 (1 ULg)
Full Text
See detailMise en place de l’autocontrôle : ce que cela implique dans vos exploitations
Belleflamme, Christel ULg; Di Tanna, Sybille ULg; Moerman, John et al

Article for general public (2007)

Suite à une directive européenne, la mise en place d’un système de gestion de la sécurité des denrées alimentaires est devenue obligatoire en Belgique. Outre la création de l’Agence Fédérale pour la ... [more ▼]

Suite à une directive européenne, la mise en place d’un système de gestion de la sécurité des denrées alimentaires est devenue obligatoire en Belgique. Outre la création de l’Agence Fédérale pour la Sécurité de la Chaîne Alimentaire, une législation en matière d’autocontrôle de notification obligatoire et de traçabilité a été mise en place. Les agriculteurs qui transforment et commercialisent leur production sont directement concernés. Nous vous proposons de mettre en avant quelques conséquences pratiques qui en découlent et l’encadrement proposé par Gembloux en la matière [less ▲]

Detailed reference viewed: 68 (12 ULg)
Full Text
See detailMise en place de l'épicuticule chez le crabe Carcinus maenas
Compère, Philippe ULg

in Le Gal, Yves; Van Wormhoudt, Alain (Eds.) Aspects récents de la biologie des Crustacés - Actes de Colloques n° 8 - 1988 (1988)

Detailed reference viewed: 12 (1 ULg)
See detailLa mise en place de majorités gouvernementales asymétriques au niveau fédéral et au niveau wallon, bruxellois et de la Communauté française : conséquence possible du fédéralisme ou danger pour les intérêts des francophones ?
Behrendt, Christian ULg

Conference given outside the academic context (2014)

Conférence donnée à la Société littéraire de Liège, Hôtel de la Société littéraire, Liège, 20 novembre 2014.

Detailed reference viewed: 18 (2 ULg)