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See detailAnalysis of volatile compounds produced by 2 strains of Lactococcus lactis isolated from Leben (Tunisian fermented milk) using solid-phase microextraction-gas chromatography
Ziadi, M.; Wathelet, Jean-Paul ULiege; Marlier, Myriam ULiege et al

in Journal of Food Science (2008), 73(6), 247-252

The volatile compounds that characterize Leben during fermentation with 2 Lactococcus lactis strains (SLT6 and SLT10) in flasks, in a 100-L fermentor, and during storage at 4 degrees C, were investigated ... [more ▼]

The volatile compounds that characterize Leben during fermentation with 2 Lactococcus lactis strains (SLT6 and SLT10) in flasks, in a 100-L fermentor, and during storage at 4 degrees C, were investigated and compared to those from commercial Leben. Volatile compounds from Leben were concentrated by a Carboxen-PDMS fiber and analyzed by GC-MS. These compounds include acids, alcohols, aldehydes, ketones, sulfur compounds, and hydrocarbons. Commercial Leben presented a poor volatile profile compared to the laboratory-made Leben. The mixed culture of 2 Lactococcus lactis strains resulted in higher volatile compound formation than the single strain culture. The GC volatile profiles of Leben produced In flask and in the 100-L fermentor were similar. Changes in volatile compounds were observed during storage at 4 degrees C. The effect of culture conditions on production of volatiles by SLT6 strain was studied. Aeration (0.1 mL/min) and agitation enhanced the production of diacetyl, acetoin, 3-methylbutanal, and 3-methylbutanol. Fermentation at pH 5 had no effect on volatile production. [less ▲]

Detailed reference viewed: 56 (23 ULiège)
See detailAnalysis of VZV IE62 protein DNA binding sites on VZV gene promoters
Baudoux, Laurence; Remacle, V.; Defechereux, Patricia et al

Conference (1996)

Detailed reference viewed: 10 (0 ULiège)
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See detailAn analysis on energy efficiency initiatives in the building stock of Liege, Belgium
Singh, Manoj Kumar ULiege; Mahapatra, Sadhan; Teller, Jacques ULiege

in Energy Policy (2013), http://dx.doi.org/10.1016/j.enpol.2013.07.138

Built environment is responsible for 60% of total energy consumption in European countries and 128 million BOE of primary energy in Belgium. The average energy consumption in the residential buildings of ... [more ▼]

Built environment is responsible for 60% of total energy consumption in European countries and 128 million BOE of primary energy in Belgium. The average energy consumption in the residential buildings of Belgium is 70% higher than the EU average and stands at 348 kWh/m2/year. Energy Performance Building Directive (EPBD) provides guidelines for energy performance analysis of buildings in Belgium. In this study, a holistic approach has been adopted to analyse the building stock of Liege, Belgium. This analysis is based on ‘General Socio-economic survey 2001’ and ‘Housing quality survey 2006 in Walloon region’databases. It considers parameters such as buildings age, built-up area, type of heating system, type of fuel used, adjacency, insulation of roofs and walls and energy consumption etc. for an in depth analysis. This study concludes that about 69% of buildings which are constructed before 1945 needs serious renovation towards the improvement of roof and external wall insulation level. It then successfully identifies specific areas which need detailed study to evaluate the comfort status in the existing building stock, improvement of insulation level and its effect on heating energy consumption as well as the economic analysis on energy efficiency measurements. [less ▲]

Detailed reference viewed: 69 (22 ULiège)
See detailAnalysis Report on Superoxide Dismutases from the Antarctic Fungus Aspergillus glaucus
Feller, Georges ULiege

Scientific conference (2013)

Detailed reference viewed: 22 (1 ULiège)
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See detailAn analysis the value chain of fresh milk in the North of Vietnam : the case study in Sonla Province
Bui, Thi Nga ULiege; Tran Huu, Cong; Lebailly, Philippe ULiege

in Hanoi University of Agriculture; Francophone Joint University Council (CIUF) (Eds.) Proceedings of Scientific Research Results - Institutional University Cooperation Program 2008-2012 (2013)

Detailed reference viewed: 54 (3 ULiège)
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See detailAn analysis the value chain of fresh milk in the North of Vietnam : the case study in Sonla
Bui, Thi Nga ULiege; Tran Huu, Cuong; Lebailly, Philippe ULiege

Conference (2011)

Vietnam locates in the most active region (Asia), where gains the highest economic growth rate and highest milk consumption in the world. Milk growth rate is higher than almost other agricultural products ... [more ▼]

Vietnam locates in the most active region (Asia), where gains the highest economic growth rate and highest milk consumption in the world. Milk growth rate is higher than almost other agricultural products in the past 10 years in this region (Nancy, 2008). Vietnam is also one of the highest milk productivity in the Asia. Milk consumption in Vietnam is increasing rapidly (Nancy, 2008). However, the dairy industry in Vietnam is currently able to meet only 22 percent of domestic demand; the remaining amount has been imported from overseas suppliers and producers (VOV News/VNA, 2008). In addition, the linkages among the actors and stakeholders in the value chain of milk in the North of Vietnam are very weak. It leads to low effective in the production of the whole chain. This paper based on semistructure, standard questionnaires and PRA method to collect data of dairy farms in Sonla province, of milk collecting centres, of dairy plan and of milk distributors in 2008-2010. The findings show that dairy plan is the most powerful actor in the chain and it drives the whole chain. The value added of the chain is distributed unequally among determinants in the bias orientation to the non-farmer (non-producer). Opportunity cost of land, capital, and family labor in farm does not include when they calculate their benefits, thus it is not reflect the real situation and their value added would be much lowers. Weak linkages among participants in the chain with stakeholders and insufficient supports discourage farmers to develop their production. [less ▲]

Detailed reference viewed: 104 (11 ULiège)
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See detailAn analysis the value chain of fresh milk in the North of Vietnam : the case study in Sonla
Bui, Thi Nga ULiege; Ma Tran Huu, Cuong; Lebailly, Philippe ULiege

in Vietnam’s Socio-Economic Development : a Social Science Review (2011), (68),

Vietnam locates in the most active region (Asia), where gains the highest economic growth rate and highest milk consumption in the world. Milk growth rate is higher than almost other agricultural products ... [more ▼]

Vietnam locates in the most active region (Asia), where gains the highest economic growth rate and highest milk consumption in the world. Milk growth rate is higher than almost other agricultural products in the past 10 years in this region (Nancy, 2008). Vietnam is also one of the highest milk productivity in the Asia. Milk consumption in Vietnam is increasing rapidly (Nancy, 2008). However, the dairy industry in Vietnam is currently able to meet only 22 percent of domestic demand; the remaining amount has been imported from overseas suppliers and producers (VOV News/VNA, 2008). In addition, the linkages among the actors and stakeholders in the value chain of milk in the North of Vietnam are very weak. It leads to low effective in the production of the whole chain. This paper based on semi-structure, standard questionnaires and PRA method to collect data of dairy farms in Sonla province, of milk collecting centres, of dairy plan and of milk distributors in 2008-2010. The findings show that dairy plan is the most powerful actor in the chain and it drives the whole chain. The value added of the chain is distributed unequally among determinants in the bias orientation to the non-farmer (non-producer). Opportunity cost of land, capital, and family labor in farm does not include when they calculate their benefits, thus it is not reflect the real situation and their value added would be much lowers. Weak linkages among participants in the chain with stakeholders and insufficient supports discourage farmers to develop their production. [less ▲]

Detailed reference viewed: 54 (6 ULiège)
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See detailAn analysis the value chain of fresh milk in the northern area Vietnam: a case study in Son La Province
Bui Thi, Nga; Lebailly, Philippe ULiege; Tran Huu, Cuong

Book published by Centres d'Etudes du Développement, UCL; Unité d'Economie et Développement rural, Gembloux Agro-Bio Tech, ULG; Centre for Interdisciplinary Research on Rural Development (CIRRD), Hanoi University of Agriculture (HUA) (2015)

In Vietnam, the consumption of dairy products has increased dramatically in recent years due to rising incomes. To meet this growing demand, and reduce imports, the Vietnamese Government has encouraged ... [more ▼]

In Vietnam, the consumption of dairy products has increased dramatically in recent years due to rising incomes. To meet this growing demand, and reduce imports, the Vietnamese Government has encouraged milk production. In this context, our research is primarily interested in the distribution of value added among the actors within the fresh milk chain observed in the province of Son La. Our study demonstrates that value added within the fresh milk chain was unequally distributed among actors in the chain in the bias orientation to the non-farmers (non-producer). The key feature in the chain was the dairy farmers, but they were also the most vulnerable actors of the chain. Given the balance of power among the actors, the most appropriate method to promote the added value for dairy producers is to help a better control on their production costs by improving the management at the dairy farm. [less ▲]

Detailed reference viewed: 36 (5 ULiège)
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See detailAnalysis tools of food consumption trends
Duquesne, Brigitte ULiege

Conference (2007)

Detailed reference viewed: 30 (5 ULiège)
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See detailAnalysis versus synthesis for trending gas-path measurement time series
Borguet, Sébastien ULiege; Léonard, Olivier ULiege; Dewallef, Pierre ULiege

in Journal of Engineering for Gas Turbines & Power (2015), 137

Gas-path measurements used to assess the health condition of an engine are corrupted by noise. Generally, a data cleaning step occurs before proceeding with fault detection and isolation. Classical linear ... [more ▼]

Gas-path measurements used to assess the health condition of an engine are corrupted by noise. Generally, a data cleaning step occurs before proceeding with fault detection and isolation. Classical linear filters such as the EWMA filter are traditionally used for noise removal. Unfortunately, these low-pass filters distort trend shifts indicative of faults, which increases the detection delay. The present paper investigates two new approaches to nonlinear filtering of time series. On the one hand, the synthesis approach reconstructs the signal as a combination of elementary signals chosen from a predefined library. On the other hand, the analysis approach imposes a constraint on the shape of the signal (e.g., piecewise constant). Both approaches incorporate prior information about the signal in a different way, but they lead to trend filters that are very capable at noise removal while preserving at the same time sharp edges in the signal. This is highlighted through the comparison with a classical linear filter on a batch of synthetic data representative of typical engine fault profiles. [less ▲]

Detailed reference viewed: 34 (2 ULiège)
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See detailAnalysis versus synthesis for trending of gas-path measurement time series
Borguet, Sébastien ULiege; Léonard, Olivier ULiege; Dewallef, Pierre ULiege

in Proceedings of ASME Turbo Expo 2014 (2014, June)

Gas-path measurements used to assess the health condition of an engine are corrupted by noise. Generally, a data cleaning step occurs before proceeding with fault detection and isolation. Classical linear ... [more ▼]

Gas-path measurements used to assess the health condition of an engine are corrupted by noise. Generally, a data cleaning step occurs before proceeding with fault detection and isolation. Classical linear filters such as the exponentially weighted moving average filter are traditionally used for noise removal. Unfortunately, these low-pass filters distort trend shifts indicative of faults, which increases the detection delay. The present paper investigates two new approaches to non-linear filtering of time series. On one hand, the synthesis approach reconstructs the signal as a combination of elementary signals chosen from a pre-defined library. On the other hand, the analysis approach imposes a constraint on the shape of the signal (e.g., piecewise constant). Both approaches incorporate prior information about the signal in a different way, but they lead to trend filters that are very capable at noise removal while preserving at the same time sharp edges in the signal. This is highlighted through the comparison with a classical linear filter on a batch of synthetic data representative of typical engine fault profiles. [less ▲]

Detailed reference viewed: 31 (5 ULiège)
Peer Reviewed
See detailAnalysis, description and... evidence. Is the given a myth ?
Brisart, Robert; Leclercq, Bruno ULiege

Conference (2012, November 13)

Detailed reference viewed: 22 (1 ULiège)
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See detailAnalytic amplitude models for forward scattering
Kang, K.; Cudell, Jean-René ULiege; Ezhela, V. V. et al

in Kundrat, V.; Zavada, P. (Eds.) ELASTIC AND DIFFRACTIVE SCATTERING (2001)

Detailed reference viewed: 18 (1 ULiège)
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See detailAnalytic amplitudes for hadronic forward scattering: COMPETE update
Nicolescu, B.; Cudell, Jean-René ULiege; Ezhela, V. V. et al

in Bentvelsen, S.; de Jong, P.; Koch, J. (Eds.) et al ICHEP 2002 (2002)

Detailed reference viewed: 8 (0 ULiège)
Peer Reviewed
See detailAnalytic and clinical evaluation of the Abbott AxSYM cardiac troponin I assay
Elst, K. M. V.; Chapelle, Jean-Paul ULiege; Boland, P. et al

in American Journal of Clinical Pathology (1999), 122(6), 745-752

Detailed reference viewed: 38 (0 ULiège)
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See detailAnalytic assessment under ultraviolet light of actinic lentigines under bleaching treatment.
PIERARD, Gérald ULiege; Seite, Sophie; Rougier, Andre et al

in Journal of Cosmetic Dermatology (2011), 10(2), 104-9

BACKGROUND: Actinic (solar) lentigines are melanotic tumors frequently developed during photoaging on the dorsum of the hands. Bleaching (whitening) agents are commonly offered to fade their darker aspect ... [more ▼]

BACKGROUND: Actinic (solar) lentigines are melanotic tumors frequently developed during photoaging on the dorsum of the hands. Bleaching (whitening) agents are commonly offered to fade their darker aspect. In general, regular colorimetric methods show poor sensitivity to disclose any bleaching effect. METHOD: The present randomized controlled study on 24 women was designed to objectively assess the clinical efficacy of a combination of bleaching agents on actinic lentigines. In the endeavor of improving sensitivity, the ultraviolet light-enhanced visualization (ULEV) method was used to derive analytical measurements of lentigo areas and darkness. The test product was a commercially available formulation associating glycolic acid, kojic acid, lipohydroxyacid, and a Vitreoscilla extract. The Analysis(R) Olympus and Adobe Photoshop(R) quantitative methods were applied to the ULEV pictures. RESULTS: Data indicated a rapid bleaching effect arising as early as after 1 month of daily applications. The effect progressively increased over 3 months of therapy. CONCLUSION: The presently described analytical method appears to be sensitive to document some bleaching effects on actinic lentigines. [less ▲]

Detailed reference viewed: 26 (0 ULiège)
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See detailAnalytic dermoscopy of superficial basal cell carcinoma.
FRANCHIMONT, Claudine ULiege; Hermanns, Jean-Francois; Caucanas, Marie et al

in Journal of Case Reports in Medicine (2013), 3

Detailed reference viewed: 30 (6 ULiège)
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See detailAnalytic Model for The Motion About An Oblate Planet in The Presence Atmospheric Drag
Martinusi, Vladimir ULiege; Dell'Elce, Lamberto ULiege; Kerschen, Gaëtan ULiege

in Advances in The Astronautical Sciences (2015)

The paper introduces a new model for the motion about an oblate planet under the influence of the atmospheric drag. Both qualitative and quantitative insights are revealed, as well as closed-form ... [more ▼]

The paper introduces a new model for the motion about an oblate planet under the influence of the atmospheric drag. Both qualitative and quantitative insights are revealed, as well as closed-form equations of motion. The main tool consists in averaging the effects of both perturbations (oblateness and drag), and deriving the variational equations for the vectorial orbital elements. The model is singularity-free and may serve as an initial guess for control problems, as well as an analytic propagator. [less ▲]

Detailed reference viewed: 48 (7 ULiège)