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See detailInfluence of tree-fall orientation on canopy gap shape in an Ecuadorian rain forest.
Salvador-Van Eysenrode, D; Bogaert, Jan ULg; Van Hecke, P et al

in Journal of Tropical Ecology (1998), 14(6), 865-869

Detailed reference viewed: 14 (3 ULg)
See detailInfluence of tribology of cage material on ball bearing cage instability
Servais, Christophe ULg; Duquenne, Marc ULg; Bozet, Jean-Luc ULg

in 15th European Space Mechanisms and Tribology Symposium 2013 (2013, September)

By creating a solid lubricant thickness on both bearing races, a cage material of cryogenic ball bearing plays a significant role in the good dynamical behavior of the cage. This role is essential because ... [more ▼]

By creating a solid lubricant thickness on both bearing races, a cage material of cryogenic ball bearing plays a significant role in the good dynamical behavior of the cage. This role is essential because of the lack of conventional lubricant into this kind of bearing. In this paper, a method able to identify if a particular potential cage material can correctly fulfill its function is described. In other words, if it can lead to a stable movement of the cage. From the identification of fundamental tribological parameters governing the cage behavior, this method presents an example of ranking of such materials. This is based on pin-on-disk tests and on a numerical approach. [less ▲]

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See detailInfluence of two breeds (Belgian Blue and Limousin) and previous storage time on pigment and lipid stability of high-oxygen atmosphere packaged beef
Didimo Imazaki, Pedro Henrique ULg; Tahiri, Assia ULg; Thimister, Jacqueline ULg et al

Poster (2013, December 10)

The aim of this study was to evaluate the effect of two breeds (Belgian Blue vs. Limousin) and previous storage time in vacuum conditions on color and lipid stability of meat packaged in high-oxygen ... [more ▼]

The aim of this study was to evaluate the effect of two breeds (Belgian Blue vs. Limousin) and previous storage time in vacuum conditions on color and lipid stability of meat packaged in high-oxygen atmosphere. Limousin meat samples of this study presented a higher sensitivity to myoglobin and lipid oxidation than Belgian Blue samples. The higher content of fat in those samples was one of the factors that could explain this higher sensitivity. Lipid oxidation and myoglobin oxidation appear to be linked, and further studies to understand the interaction between both processes are still needed. An understanding of the oxidative processes and their interaction would provide a basis for explaining quality deterioration in meat and also for developing strategies (e.g. antioxidant supplementation) to maintain sensory qualities. [less ▲]

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See detailThe Influence Of Two Extraction Methods Of Basil Volatile Compounds On The Aroma Profile Of Apple Vinegar
Truta, Delia-Mihaela ULg; Tofana, Maria; Socaci, Sonia Ancuta

in Journal of Agroalimentary Processes and Technologies (2010)

The present study includes researches regarding which method of extraction, maceration or ultrasounds, offer a richer aroma profile to apple vinegar. The aroma compounds were extracted from Ocimum ... [more ▼]

The present study includes researches regarding which method of extraction, maceration or ultrasounds, offer a richer aroma profile to apple vinegar. The aroma compounds were extracted from Ocimum basilicum L., a widely used herb in folk medicine and diets, for it’s flavoring and preserving activity. The aroma profile of the flavored vinegar was analyzed using a gas chromatograph coupled with a mass spectrometer Schimadzu, QP-2010 and through an AT-5 capillary column. Although both methods of extraction used dry herbs, differences in the aroma profile of the flavored apple vinegar were noticed. The apple vinegar that was flavored by ultrasounds, had higher concentrations of 1-Butanol-3-metil-acetat and p-Allyl-Anisol, a compound known for it’s toxic actions. The high concentration of 1-Butanol-2-metil-acetat, Eucalyptol and Linalool acetate, made us conclude/decide that, using maceration, as method of extraction, the fingerprint of the apple vinegar is richer and it’s medical virtues are higher. [less ▲]

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See detailInfluence of type of contraction upon tendinous tissue during training: animal model
Kaux, Jean-François ULg; Drion, Pierre ULg; Croisier, Jean-Louis ULg et al

in Meeusen, R; Duchateau, J; Roelands, B (Eds.) et al Book of Abstracts of the 17th annual Congress of the ECSS (2012, July)

Introduction: The treatment of choice for tendinopathies is eccentric reeducation. Although the clinical results appear favourable, the biomechanical changes to the tissue are not yet clear. Materiel and ... [more ▼]

Introduction: The treatment of choice for tendinopathies is eccentric reeducation. Although the clinical results appear favourable, the biomechanical changes to the tissue are not yet clear. Materiel and methods: This study compared the effects of two methods of training (eccentric (E) training and concentric (C) training) with untrained (U) rats. The animals underwent training over a period of five weeks. The tricipital, patellar and Achilles tendons were subsequently removed to perform a traction test to the point of tendon rupture, and a histological analysis was performed. Results: There was a significant improvement in the rupture force of the patellar and tricipital tendons between the U and E groups. The tricipital tendons in the control group presented a significantly smaller cross-section than the E- and C-trained groups. No significant difference was observed for the constraints between the three groups for all three tendons. However, a tendency towards improvement was observed between the trained and the U groups for the patellar tendon. Histological studies demonstrated the development of a greater number of blood vessels and a larger quantity of collagen in the eccentric group. Discussion and conclusion: The mechanical properties of tendons in rats improve after specific training, especially following eccentric training. [less ▲]

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See detailInfluence of Van Hove singularity on the electronic specific heat of high-Tc superconductors
Dorbolo, Stéphane ULg; Houssa, Michel; Ausloos, Marcel ULg

in Physica C: Superconductivity (1996)

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See detailInfluence of various human-tumor cell-lines on collagen-synthesis by normal fibroblasts
Noël, Agnès ULg; Nusgens, Betty ULg; Foidart, Jean-Michel ULg et al

in Abstracts for the 18th Annual Meeting of the European Society for Dermatologic Research (1988)

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See detailInfluence of veneer thickness on residual stress profile in veneering ceramic: Measurement by hole-drilling.
MAINJOT, Amélie ULg; Schajer, G. S.; Vanheusden, Alain ULg et al

in Dental Materials (2011)

OBJECTIVES: The veneering process of frameworks induces residual stresses and can initiate cracks when combined with functional stresses. The stress distribution within the veneering ceramic as a function ... [more ▼]

OBJECTIVES: The veneering process of frameworks induces residual stresses and can initiate cracks when combined with functional stresses. The stress distribution within the veneering ceramic as a function of depth is a key factor influencing failure by chipping. This is a well-known problem with Yttria-tetragonal-zirconia-polycrystal based fixed partial dentures. The objective of this study is to investigate the influence of veneer thickness on the stress profile in zirconia- and metal-based structures. METHODS: The hole-drilling method, often used for engineering measurements, was adapted for use with veneering ceramic. The stress profile was measured in bilayered disc samples of 20mm diameter, with a 1mm thick zirconia or metal framework. Different veneering ceramic thicknesses were performed: 1mm, 1.5mm, 2mm, 2.5mm and 3mm. RESULTS: All samples exhibited the same type of stress vs. depth profile, starting with compressive at the ceramic surface, decreasing with depth up to 0.5-1.0mm from the surface, and then becoming compressive again near the framework, except for the 1.5mm-veneered zirconia samples which exhibited interior tensile stresses. Stresses in the surface of metal samples were not influenced by veneer thickness. Variation of interior stresses at 1.2mm from the surface in function of veneer thickness was inverted for metal and zirconia samples. SIGNIFICANCE: Veneer thickness influences in an opposite way the residual stress profile in metal- and in zirconia-based structures. A three-step approach and the hypothesis of the crystalline transformation are discussed to explain the less favorable residual stress development in zirconia samples. [less ▲]

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See detailInfluence of veneer thickness on residual stresses in zirconia prostheses.
Mainjot, Amélie ULg; Schajer, Gary; Vanheusden, Alain ULg et al

in Dental Materials (2010)

Detailed reference viewed: 40 (3 ULg)
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See detailInfluence of ventilatory pattern on respiratory impedance measured by impulse oscillometry in horses
Van Erck, Emmanuelle ULg; Kirschvink, Nathalie; Art, Tatiana ULg et al

in Pflügers Archiv : European Journal of Physiology (2000), 440(R219-R220),

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See detailThe influence of verbal descriptions and delay on face identification in children and adults.
Vanootighem, Valentine ULg; Dehon, Hedwige ULg; Brédart, Serge ULg

Poster (2012, May 10)

Verbal descriptions of unfamiliar faces have been found to impair later identification of these faces in adults, a phenomenon known as the “verbal overshadowing effect (VO)” (Schooler & Englster-Schooler ... [more ▼]

Verbal descriptions of unfamiliar faces have been found to impair later identification of these faces in adults, a phenomenon known as the “verbal overshadowing effect (VO)” (Schooler & Englster-Schooler, 1990). In spite of a large body of literature on the suggestibility of children testimony, only one study has examined whether descriptions also impaired children’s identification abilities in a single group of children (8-9 years old) and no evidence of VO was found (Memon & Rose, 2002). However, the method might not have been appropriate to observe this effect as the description and the control tasks were not completed immediately but after a 24h delay that has sometimes been associated to a release of the VO effect (e.g. Schooler & Englster-Schooler, 1990; Finger & Pezdek, 1999). The aim of this experiment was to examine the influence of verbal descriptions and delay on face identification in several groups of children (7-8, 10-11, 13-14 years old) and adults when assigned either to “No delay”, “Post description delay” or “Post encoding delay” condition. The quality and influence of descriptors across the ages were also examined. [less ▲]

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See detailInfluence of water exchanges on the gallery convergence
Gerard, Pierre ULg; Charlier, Robert ULg; Chambon, René et al

Conference (2007)

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See detailInfluence of weir height and keys slope on PKW discharge
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proceedings of 4th IAHR International Symposium on Hydraulic Structures (2012)

Piano Key Weir is a cost effective solution for rehabilitation as well as for new dam projects with a high level of constraints (limited space, high specific flood discharge, small reservoir level ... [more ▼]

Piano Key Weir is a cost effective solution for rehabilitation as well as for new dam projects with a high level of constraints (limited space, high specific flood discharge, small reservoir level variation). While the higher efficiency of the Piano Key Weir compared to standard linear weirs has already been demonstrated, its optimal geometry is still poorly defined. Even if former studies highlighted the main influence of the weir height on its discharge capacity, the distinction between weir height effect and keys slope one is not so straight forward. In order to distinguish the influence of these two parameters, the use of parapet walls has been tested to increase weir height keeping bottom slope constant, and to decrease keys slope keeping the weir height constant. The experimental results presented in this paper enable to distinguish the relative influences of the keys bottom slope and of the weir height on the Piano Key Weir release capacity. Comparisons with former experimental results as well as design guidelines are also provided. [less ▲]

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See detailThe influence of western corn rootworm – Diabrotica Virgifera Virgifera Le Conte attack, upon quality of corn seeds
Florian, Teodora; Oltean, Ion; Bunescu, Horia et al

in Journal of Biotechnology (2012), 161S(Supplement), 16

Diabrotica virgifera virgifera Le Conte is considered one of the most important pests of corn grown in monoculture. Damage caused by the Western Corn Rootworm is considerable. The attack is produced by ... [more ▼]

Diabrotica virgifera virgifera Le Conte is considered one of the most important pests of corn grown in monoculture. Damage caused by the Western Corn Rootworm is considerable. The attack is produced by larvae and adults, serious affecting the grain production. Following laboratory analyzes may notice a decrease in the values of all track quality indicators for ears harvested from plants attacked by Diabrotica virgifera virgifera compared with the cobs from the healthy plants. Values of fat content of attacked cobs ranged from 2.76 and 4.23%, protein content ranged from 9.1 to 10.6% and starch between 69.7 and 70.5%. The average fat content of the cobs attacked percentage decreased by 11%, protein content by 16% and starch content dropped by less than one percent. [less ▲]

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See detailINFLUENCE OF WHEY PROTEIN DENATURATION ON ADHERENCE
Toure, Yetioman ULg; Rouxhet, G. Paul; Dupont-Gillain, C. Christine et al

Conference (2014, April)

This work reports on the influence of -lactoglobulin (β-LGB) and of its denaturation on the adherence of quartz particles, taken as a model of particulate soil, on stainless steel AISI 304 with mirror ... [more ▼]

This work reports on the influence of -lactoglobulin (β-LGB) and of its denaturation on the adherence of quartz particles, taken as a model of particulate soil, on stainless steel AISI 304 with mirror finish. The substrate was soiled with quartz suspensions in water or in β-LGB solutions as such or previously heated at 75°C, and dried at room temperature or in an oven at 75°C. Cleanability was evaluated after exposure to water in a radial flow chamber. Auxiliary characterizations were the surface tension and protein concentration of the solution, surface analysis of the substrate by X-ray photoelectron spectroscopy (XPS) and contact angle measurements. The contact of stainless steel with -LGB led to adsorption of the protein, which dominated the composition of the organic layer with respect to contaminants initially present, and was not markedly desorbed upon rinsing. The presence of β-LGB at the quartz particle/substrate interface slightly increased the adherence, which was further increased when the protein was denatured. On the other hand, denaturation of -LGB enhanced its surfactant effect at the water/air interface. Comparison with systems investigated before suggests that the influence of protein via droplet spreading and soiling particles aggregation may be of minor importance compared to direct effects on the substrate/quartz interface. Stainless steel does not behave as a hydrophilic substrate owing to its surface contamination with organic compounds. It appears suitable to examine the influence of the initial surface state of stainless steel on its behavior regarding soiling and cleaning. [less ▲]

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See detailINFLUENCE OF WHEY PROTEIN DENATURATION ON ADHERENCE
Toure, Yetioman ULg; Rouxhet, G. Paul; Dupont-Gillain, C. Christine et al

in Dr Wilson, I.; Chew, Y.M.J. (Eds.) Fouling and Cleaning in Food Processing (2014, April)

This work reports on the influence of -lactoglobulin (β-LGB) and of its denaturation on the adherence of quartz particles, taken as a model of particulate soil, on stainless steel AISI 304 with mirror ... [more ▼]

This work reports on the influence of -lactoglobulin (β-LGB) and of its denaturation on the adherence of quartz particles, taken as a model of particulate soil, on stainless steel AISI 304 with mirror finish. The substrate was soiled with quartz suspensions in water or in β-LGB solutions as such or previously heated at 75°C, and dried at room temperature or in an oven at 75°C. Cleanability was evaluated after exposure to water in a radial flow chamber. Auxiliary characterizations were the surface tension and protein concentration of the solution, surface analysis of the substrate by X-ray photoelectron spectroscopy (XPS) and contact angle measurements. The contact of stainless steel with -LGB led to adsorption of the protein, which dominated the composition of the organic layer with respect to contaminants initially present, and was not markedly desorbed upon rinsing. The presence of β-LGB at the quartz particle/substrate interface slightly increased the adherence, which was further increased when the protein was denatured. On the other hand, denaturation of -LGB enhanced its surfactant effect at the water/air interface. Comparison with systems investigated before suggests that the influence of protein via droplet spreading and soiling particles aggregation may be of minor importance compared to direct effects on the substrate/quartz interface. Stainless steel does not behave as a hydrophilic substrate owing to its surface contamination with organic compounds. It appears suitable to examine the influence of the initial surface state of stainless steel on its behavior regarding soiling and cleaning. [less ▲]

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See detailInfluence of whole milk in diet of growing fattening Belgian Blue bulls on animal performances and on fatty acid composition in subcutaneous, intermuscular and intramuscular fats
Hornick, Jean-Luc ULg; Clinquart, Antoine ULg; Van Eenaeme, Christian ULg et al

in Livestock Production Science (1997), 48

Influence of milk in diet of growing fattening Belgian Blue bulls on animal performances and on fatty acid composition in subcutaneous, intermuscular and intramuscular fats. The use of milk as component ... [more ▼]

Influence of milk in diet of growing fattening Belgian Blue bulls on animal performances and on fatty acid composition in subcutaneous, intermuscular and intramuscular fats. The use of milk as component of a fattening diet for bulls was studied in an experiment carried-out over 2 years with Belgian Blue bulls. The animals weighed 305 kg at the beginning of the experiment. In all, 15 bulls were given a control concentrate fattening diet (control group, CG), while 11 others were fed concentrate plus 6.5 to 11 1 whole milk per day according to weight or age (milk group, MG). The fattening period lasted for 174 and 181 d respectively in groups CG and MG. The MG-group had a higher killing-out percentage (P < 0.01) and the meat was characterized by a lower b* value and a lower dry matter content (P < 0.1). Whole milk in the diet increased the proportion of shorter chain and saturated fatty acids in fat (P < 0.001) and reduced the proportion of mono- and polyunsaturated acids (P < 0.05; P < 0.1). The extent of the changes were larger in subcutaneous and intermuscular fats than in intramuscular fat. [less ▲]

Detailed reference viewed: 9 (0 ULg)