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See detailInterest of the use of electronic nose for field monitoring of odours in the environment
Nicolas, Jacques ULg

in Lehr Jay H.; Keeley Jack (Eds.) Water encyclopedia. Volume 2 : Water quality control. (2005)

Electronic nose is a promising technique for field monitoring of malodours in the environment. It is based on an array of non-specific gas sensors coupled with some form of mathematical data processing ... [more ▼]

Electronic nose is a promising technique for field monitoring of malodours in the environment. It is based on an array of non-specific gas sensors coupled with some form of mathematical data processing method to analyse the global response patterns. Some applications concerning the control of water quality are reported in the literature. They often impliy the generation of a headspace gas above liquid samples, but they also concern the odour emitted in the air from wastewater. The typical needs of the final user require both qualitative and quantitative approaches, i.e. both discriminating between slight variations in complex gas mixtures and monitoring a global odour signal which can be correlated with classical characterisation variables of water or air quality. Although potential applications in odour assessment by electronic noses are numerous, a number of challenges still need to be overcome: understanding and controlling the impact of environmental parameters (such as temperature and humidity), improving sensor sensitivity and noise reduction or developing calibration procedures to account for sensor drift. The present limitations of electronic nose technology restrict its use in the environment to the odour monitoring in the surroundings of the emission with instruments specifically designed for the application. [less ▲]

Detailed reference viewed: 54 (4 ULg)
See detailInterest of using lipid vesicular systems for dermatological applications
Piel, Géraldine ULg

Scientific conference (2014)

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See detailInterest of vesicular systems in dermal drug delivery
Gillet, Aline ULg; Lecomte, Frédéric ULg; Hubert, Pascale ULg et al

Poster (2010, October)

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See detailInterest, recording and possible use of new phenotypes from fine milk composition
Gengler, Nicolas ULg; Soyeurt, Hélène ULg

in Proceedings of the 9th World Congress on Genetics Applied to Livestock Production (2010)

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See detailInteresterification of rapeseed oil with anhydrous milk fat and its stearin fraction
Giet, Jean-Michel ULg; Aguedo, Mario ULg; Hanon, Emilien ULg et al

Poster (2009)

The compositional changes occurring during the lipase-catalysed interesterification of AMF/rapeseed oil (RO) and AMF stearin fraction (AMFSF)/RO blends were described in the first part of this study. In ... [more ▼]

The compositional changes occurring during the lipase-catalysed interesterification of AMF/rapeseed oil (RO) and AMF stearin fraction (AMFSF)/RO blends were described in the first part of this study. In the present and second part are reported the resulting changes in physical properties, especially the melting behaviour through solid fat content (SFC), dropping point (DP) and fusion profiles by differential scanning calorimetry (DSC). [less ▲]

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See detailInteresterification of rapeseed oil with anhydrous milk fat and its stearin fraction
Aguedo, Mario ULg; Giet, Jean-Michel ULg; Hanon, Emilien ULg et al

Poster (2009)

Rapeseed oil (RO) (a choice source of unsaturation-rich residues) was used in the present study to enrich anhydrous milk fat (AMF) with unsaturated C18 fatty acids (FA) (oleic, linoleic and linolenic ... [more ▼]

Rapeseed oil (RO) (a choice source of unsaturation-rich residues) was used in the present study to enrich anhydrous milk fat (AMF) with unsaturated C18 fatty acids (FA) (oleic, linoleic and linolenic acids). Comparatively, one “harder” fraction of AMF underwent the same reaction. The physico-chemical properties modifications induced by the reaction were followed. The compositional changes are reported in this first part and the consequent physical modifications are presented in a second part. [less ▲]

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See detailInteresterification of rapeseed oil with anhydrous milk fat and its stearin fraction. II. Modifications of melting properties
Giet, Jean-Michel ULg; Aguedo, Mario ULg; Hanon, Emilien ULg et al

in GCIRC Bulletin (2009), 25

Chemical and/or physical modification of oils and fats are commonly used by food industry to widen their range of applications (1,2). Lipase-catalysed interesterification of anhydrous milk fat (AMF) and ... [more ▼]

Chemical and/or physical modification of oils and fats are commonly used by food industry to widen their range of applications (1,2). Lipase-catalysed interesterification of anhydrous milk fat (AMF) and various vegetable oils is now a well documented procedure (3-7). The purpose of this technique is to produce original structured fats with properties different from a simple blending, that may be used as spreads or introduced into pastry. The new fats contain higher amounts of polyunsaturated fatty acids (PUFA) than butter, which provides health benefits (8,9). To our knowledge only a few authors associated AMF fractionation with blending and interesterification (10,11), although this combination may be used to increase the ratio of vegetable oil in blends and thus the PUFA content of the product. The compositional changes occurring during the lipase-catalysed interesterification of AMF/rapeseed oil (RO) and AMF stearin fraction (AMFSF)/RO blends were described in the first part of this study. In the present and second part are reported the resulting changes in physical properties, especially the melting behaviour through solid fat content (SFC), dropping point (DP) and fusion profiles by differential scanning calorimetry (DSC). [less ▲]

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See detailInteresting Lines in the Infrared Solar Spectrum. II. Unblended Lines between 1.0 and 1.8µm
Ramsauer, J.; Solanki, S. K.; Biémont, Emile ULg

in Astronomy and Astrophysics. Supplement Series (1995), 113

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See detailInterests and limitations of nanoindentation for bulk multiphase material identification: Application to the β phase of Ti-5553
Gerday, Anne-Françoise ULg; Ben Bettaieb, Mohamed ULg; Duchene, Laurent ULg et al

in Acta Materialia (2009), (57), 5186-5195

This paper focuses on the numerical modeling of nanoindentation tests. The first goal of this study is to collect essential material parameters and boundary conditions from the literature and to complete ... [more ▼]

This paper focuses on the numerical modeling of nanoindentation tests. The first goal of this study is to collect essential material parameters and boundary conditions from the literature and to complete the data required to accurately model nanoindentation tests. The second goal of this study consists in validating the material parameters identified from macroscopic tensile tests of the body-centered cubic b phase of Ti-5553, a new generation of titanium alloy. This validation is performed looking at experimental and numerical nanoindentation curves obtained for different grain orientations. [less ▲]

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See detailInterests of pregnancy follow-up in cows after embryo transfer : special focusing on IVP & NT
Ectors, Fabien ULg; Drion, Pierre ULg; Delval, A. et al

(1996, September 13)

In this report, pregnancies were obtained after extreme in vitro conditions- IVM/F/C of the donor embryos, - IVM, enucleation and artificial activation of the recipient oocytes, - nuclear transfer and ... [more ▼]

In this report, pregnancies were obtained after extreme in vitro conditions- IVM/F/C of the donor embryos, - IVM, enucleation and artificial activation of the recipient oocytes, - nuclear transfer and - IVC of the reconstituted embryos. Even if the incidence of this syndrome is relatively low after embryo transfer, a possible increasing of its occurence cannot be excluded in correlation with an incomplete maturation of oocytes at the time of fertilization, smaller follicles giving non competent or partially competent oocytes. An other explanation of this syndrome resulting in the higher variation in newborn calves weight may be also partly explained by the in vitro conditions. The gametes and/or embryos may be submitted to media containing embryotoxic substances. In the other hand, gametes and/or embryos may not found embryotrophic substances in the media like growth factors... Owing to this phenomenon, strict recommendations should be followed concerning rigorous follow-up of pregnancies obtained after transfer of IVM/IVF/IVC or cloned embryos by pregnancy proteins (PSPB, PAG...) or hormone (placental lactogen, estrone sulfate) assay and, after birth, macroscopic examinations of newborn, cord and caroncules. [less ▲]

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See detailInterests of regional modelisation for wind power forecasting
Doutreloup, Sébastien ULg; Fettweis, Xavier ULg; Erpicum, Michel ULg

Conference (2010, October 22)

European policies have decided to reduce the greenhouse gas emissions of 20% and to reach 20% of renewable power production by 2020. Increasing wind power is one of the numerous solutions to reach these ... [more ▼]

European policies have decided to reduce the greenhouse gas emissions of 20% and to reach 20% of renewable power production by 2020. Increasing wind power is one of the numerous solutions to reach these goals. However, this kind of energy production depends on the meteorological conditions and gives it an intermittent behaviour. The wind speed variations cause voltage and frequency fluctuations that are unacceptable for the power grid. Therefore, forecasting production will become essential with the aim of integrating this kind of energy production into the power grid. We have developed and compared two forecasting models which give as outputs the wind power production every 15 minutes over the Belgian territory: the first one uses the outputs from the global model GFS (available at a horizontal resolution of 0.5° every 3h) and the second one uses the regional climate model WRF-NMM (using a horizontal resolution of 4km). Both of these models predict the wind speed and transform wind speed into wind power production, using a power curve which depends on the wind turbines and their characteristics. The first model using the GFS outputs is not precise enough in space and time to correctly forecast the wind speed in punctual wind farms. That is why we apply some specific tunings on these forecasts. These tunings depend on the air density, the wind direction and the stability of the air mass. The second model using the WRF-NMM outputs runs over the Belgian territory. Initial conditions are forced by the GFS outputs at 0.5° and WRF computes a physical based spatio-temporal downscaling of the meteorological variables. The outputs have a spatial resolution of 4 km and a time resolution of 15 minutes. Some tunings are also needed to adjust the wind power forecasts by comparison to the wind power observations. We present here some results of both models and the interest of using a regional model for more precise wind power forecasting. [less ▲]

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See detailInterests of using a regional model to forecast wind power production
Doutreloup, Sébastien ULg

Poster (2010, November 05)

European policies have decided to reduce the greenhouse gas emissions of 20% and to reach 20% of renewable power production by 2020. Increasing wind power is one of the numerous solutions to reach these ... [more ▼]

European policies have decided to reduce the greenhouse gas emissions of 20% and to reach 20% of renewable power production by 2020. Increasing wind power is one of the numerous solutions to reach these goals. However, this kind of energy production depends on the meteorological conditions and gives it an intermittent behaviour. The wind speed variations cause voltage and frequency fluctuations that are unacceptable for the power grid. Therefore, forecasting production will become essential with the aim of integrating this kind of energy production into the power grid. We have developed and compared two forecasting models which give as outputs the wind power production every 15 minutes over the Belgian territory: the first one uses the outputs from the global model GFS (available at a horizontal resolution of 0.5° every 3h) and the second one uses the regional climate model WRF-NMM (using a horizontal resolution of 4km). Both of these models predict the wind speed and transform wind speed into wind power production, using a power curve which depends on the wind turbines and their characteristics. The first model using the GFS outputs is not precise enough in space and time to correctly forecast the wind speed in punctual wind farms. That is why we apply some specific tunings on these forecasts. These tunings depend on the air density, the wind direction and the stability of the air mass. The second model using the WRF-NMM outputs runs over the Belgian territory. Initial conditions are forced by the GFS outputs at 0.5° and WRF computes a physical based spatio-temporal downscaling of the meteorological variables. The outputs have a spatial resolution of 4 km and a time resolution of 15 minutes. Some tunings are also needed to adjust the wind power forecasts by comparison to the wind power observations. We present here some results of both models and the interest of using a regional model for more precise wind power forecasting. [less ▲]

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See detailIntérêt actuel de l'étude des poisons de flèches : synthèse des connaissances
Philippe, Geneviève ULg; Angenot, Luc ULg

in Etnopharmacologia- Bulletin de la Société Française d'Ethnopharmacologie et de la Société Européenne d'Ethnopharmacologie (2006), (38), 43-49

Detailed reference viewed: 18 (4 ULg)
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See detailIntérêt actuel de la calcitonine en pathologie ostéoarticulaire
Reginster, Jean-Yves ULg; Franchimont, P

in Tempo Médical (1985), 53

Detailed reference viewed: 7 (2 ULg)
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See detailL'intérêt botanique des anciennes exploitations de phyllades ardoisiers de Vielsalm Ardoise et coticule en Terre de Salm
Rouxhet, Serge ULg; Sérusiaux, Emmanuël ULg; Clesse, Joseph

in Goemaere, Eric (Ed.) Ardoise et coticule en Terre de Salm (2008)

Detailed reference viewed: 49 (9 ULg)