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See detailThe effect of common bovine respiratory diseases on tidal breathing flow-volume loops
Lekeux, Pierre ULg; Art, Tatiana ULg; Amory, Hélène ULg

in Veterinary Research Communications (1988), 12(6), 463-473

In order to better understand the bovine breathing pattern, tidal breathing flow-volume loops (TBFVL) were analyzed in 24 healthy cattle of different body weights (range: 37-660 kg) (Group A) and in 28 ... [more ▼]

In order to better understand the bovine breathing pattern, tidal breathing flow-volume loops (TBFVL) were analyzed in 24 healthy cattle of different body weights (range: 37-660 kg) (Group A) and in 28 cattle suffering from the common respiratory diseases: verminous bronchitis (Group B); shipping fever (Group C); acute respiratory distress syndrome (Group D); respiratory syncytial virus pneumonia (Group E); organophosphate poisoning (Group F); and necrotic laryngitis (Group G). Respiratory airflow and tidal volume were measured with a breathing mask-Fleisch pneumotachograph assembly. TBFVL were traced from these values using a computerized method. All the loop indices proposed by Amis and Kurpershoek (1986a) were calculated from 5 representative breathing cycles for each of the 52 animals. The TBFVL shapes and indices were relatively constant in most healthy cattle and were not correlated with the body size. When compared to normal values, animals with moderate respiratory syndromes (Groups B and C) had a more flattened shape to their TBFVL. On the other hand, in most cattle with severe respiratory pathologies (Groups D, F and G expiration tended to be biphasic with the peak expiratory flow (PEF) occurring significantly later than in healthy animals. Both PEF and peak inspiratory flow were increased in all the pathological conditions. The TBFVL indices were more frequently and more severely changed during expiration than during inspiration. [less ▲]

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See detailThe effect of communication skills training on residents' physiological arousal in a breaking bad news simulated task
Meunier, Julie; Merckaert, Isabelle; Libert, Yves et al

in Patient Education & Counseling (2013), 93(1), 40-47

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See detailEffect of concentration in Ge-Te liquids: A combined density functional and neutron scattering study
Micoulaut, Matthieu; Coulet, M.V.; Piarristeguy, A. et al

in Physical Review. B : Solid State (2014), 89(17), 174205

The structural properties of three compositions of Ge-Te liquids (Ge10Te90, Ge15Te85, Ge20Te80) are studied from a combination of density functional based molecular dynamics simulations and neutron ... [more ▼]

The structural properties of three compositions of Ge-Te liquids (Ge10Te90, Ge15Te85, Ge20Te80) are studied from a combination of density functional based molecular dynamics simulations and neutron scattering experiments. We investigate structural properties including structure factors, pair distribution functions, angular distributions, coordination numbers, neighbor distributions and compare our results with experimental findings. Most noticeable is the good agreement found in the reproduction of the structure in real and reciprocal space, resulting from the incorporation of dispersion forces in the simulation. This leads to Ge and Te coordination numbers which are lower than in previous studies and which can now be followed with temperature, while also strongly depending on the chosen cutoff distance. Results show a gradual conversion of higher coordinated species (TeIV, GeV) into lower coordinated ones at lower temperature, while leaving anticipated coordinations from the octet rule (TeII and GeIV) nearly unchanged. Structural correlations are characterized as a function of temperature and composition. The vibrational density of states is also measured from inelastic neutron scattering for different compositions and temperatures, and compared to the simulated counterpart which exhibits a reasonable agreement at low frequency. [less ▲]

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See detailEffect of concentration temperature on some bioactive compounds and antioxidant proprieties of date syrup
Abbès, Fatma; Besbes, Souhail; Bchir, Brahim ULg et al

in Food Science & Technology International (2013), 19

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See detailThe effect of concrete substrate quality towards evaluation of repair system using impact-echo method
Garbacz, Andrzej; Piotrowski, Tomasz; Kwasniewski, L. et al

in Szczesniak, W. E.; A. Zbiciak, A. (Eds.) Theoretical foundations of civil engineering (2009, September)

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See detailEffect of concrete substrate texture on the adhesion properties of PCC repair mortar
Courard, Luc ULg; Garbacz, A.; Schwall, D. et al

in Barroso de Aguiar, J.; Jalali, S.; Camoes, A. (Eds.) et al Polymers in Concrete (2006, April)

The study of adhesion of repair materials on concrete structures implies a good knowledge of the influence of concrete surface characteristics. A large research project has been realized with regards to ... [more ▼]

The study of adhesion of repair materials on concrete structures implies a good knowledge of the influence of concrete surface characteristics. A large research project has been realized with regards to the influence of concrete substrate strength and preparation technique efficiency. Three types of concretes and four types of surface preparation have been combined in order to obtain twelve different concrete slabs. They have been characterized according different destructive and non destructive techniques: Schmidt hammer, compressive strength, superficial cohesion (pull-off tests), Impact Echo measurements and cracking quantification (microscopical observations). Finally, a polymer cement concrete mortar has been applied and adhesion has been evaluated by means of pull-off and laboratory tensile tests. The relationships between parameters describing surface quality (roughness, cracking), adhesion strength and stress wave propagation have been analysed. [less ▲]

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See detailEffect of concrete surface treatment on adhesion in repair systems
Garbacz, A.; Gorka, M.; Courard, Luc ULg

in Magazine of Concrete Research (2005), 57(1), 49-60

Existing concrete surfaces need to be roughened to a profile necessary to achieve mechanical interlocking with any repair material. In this study, different surface treatments (e.g. grinding, sandblasting ... [more ▼]

Existing concrete surfaces need to be roughened to a profile necessary to achieve mechanical interlocking with any repair material. In this study, different surface treatments (e.g. grinding, sandblasting, shotblasting, hand- and mechanical milling) were performed and the quality of the preparation established on the basis of three main parameters: surface geometry, superficial concrete microcracking and adhesion. Surface geometry was characterised on the basis of the measurement of surface profile-profilometry-and the analysis of statistical and amplitude parameters calculated from the waviness (lower frequencies) and the roughness (higher frequencies) profiles of the surface. Investigations were also performed to assess the quality of the superficial zone of concrete and cracks were systematically observed in relation to surface treatment where both scanning electron microscopy and light microscopy were used for analysis. Finally, a repair mortar with or without bond coat, was applied to the concrete substrates in order to measure adhesion. Relationships clearly show the effect of roughness on adhesion in the case where no bond coat was used and also the influence of the power of the surface treatment on the waviness shape of the profile and the presence of microcracks in the near-surface layer related to failure type. [less ▲]

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See detailThe effect of continuous galvanizing thermal cycle on the microstructure and mechanical properties of two multiphase TRIP-assisted steels
Mertens, Anne ULg; Bellhouse, Erika M.; Fourmentin, Richard et al

Scientific conference (2005, June 28)

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See detailThe effect of continuous galvanizing thermal cycle on the microstructure and mechanical properties of two multiphase TRIP-assisted steels
Mertens, Anne ULg; McDermid, Joseph R.

in Proceedings of the MS&T'05 Conference (2005, September)

Multiphase TRIP assisted-steels are particularly attractive for the automotive industry, as they exhibit an exceptional strength-ductility balance which is attained through the combination of a complex ... [more ▼]

Multiphase TRIP assisted-steels are particularly attractive for the automotive industry, as they exhibit an exceptional strength-ductility balance which is attained through the combination of a complex microstructure and of a TRIP effect, i.e. the mechanically induced transformation of metastable retained austenite. This multiphase microstructure - and particularly the retention of metastable austenite - is obtained through the combination of appropriate chemistry and processing conditions, i.e an intercritical annealing followed by an isothermal hold in the temperature range for bainite formation. It has been established that this second step is important in controlling austenite retention and hence the mechanical properties. In the present work, the effect of heat treatment cycles compatible with the continuous hot dip galvanizing process, namely a high bainitic dwell temperature, on the microstructure and mechanical properties of two multiphase TRIP-assisted steel grades - one Si-alloyed grade and one mixed Si-Al grade - has been studied. It was shown that bainite formation in the Si-alloyed grade was too slow to bring about the retention of a significant amount of austenite down to room temperature. The mixed Al-Si grade, on the other hand, exhibited faster bainite formation kinetics under heat treatment conditions compatible with the CGL process, such that it is possible to retain a significant amount of austenite. The partial substitution of silicon by aluminum appears thus a promising path for the production of galvanized TRIP-assisted steels. [less ▲]

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See detailEffect of convective outer layers modeling on non-adiabatic seismic observables of delta Scuti stars
Montalban Iglesias, Josefa ULg; Dupret, Marc-Antoine ULg

in Astronomy and Astrophysics (2007), 470

Context: The identification of pulsation modes in delta Scuti stars is mandatory for constraining the theoretical stellar models. The non-adiabatic observables used in the photometric identification ... [more ▼]

Context: The identification of pulsation modes in delta Scuti stars is mandatory for constraining the theoretical stellar models. The non-adiabatic observables used in the photometric identification methods depend, however, on convection modeling in the external layers. Aims: We determine how the treatment of convection in the atmospheric and sub-atmospheric layers affects the mode identification and what information about the thermal structure of the external layers can be obtained from amplitude ratios and phase lags in Strömgren photometric bands. Methods: We derive non-adiabatic parameters for delta Scuti stars by using, for the first time, stellar models with the same treatment of convection in the interior and in the atmosphere. We compute classical non-gray mixing length models, and as well non-gray ``full spectrum of turbulence'' (FST) models. Furthermore, we compute the photometric amplitudes and phases of pulsation by using the colors and the limb-darkening coefficients as derived from the same atmosphere models as used in the stellar modeling. Results: We show that the non-adiabatic phase-lag is mainly sensitive to the thermal gradients in the external layers, hence to the treatment of convection, and that this sensitivity is also clearly reflected in the multi-color photometric phase differences. [less ▲]

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See detailEffect of conventional controlled-rate freezing and vitrification on quality of bovine blasotcysts produced in vitro
Kaidi, Safia; Bernard, S.; Lambert, Philippe ULg et al

in Biology of Reproduction (2001), 65

This study compares the effects of conventional controlled-rate freezing and vitrification on the morphology and metabolism of in vitro-produced bovine blastocysts. Day 7 expanded blastocysts cultured in ... [more ▼]

This study compares the effects of conventional controlled-rate freezing and vitrification on the morphology and metabolism of in vitro-produced bovine blastocysts. Day 7 expanded blastocysts cultured in synthetic oviduct fluid with 5% fetal calf serum were frozen in 1.36 M glycerol, 0.25 M sucrose or vitrified in 25% glycerol, 25% ethylene glycol. Cell alterations and in vitro development were evaluated immediately after thawing or after 72 h. The effect of cryopreservation on inner cell mass and trophectoderm (TE) cell number as well as glucose, pyruvate, and oxygen uptakes, and lactate release by blastocysts were evaluated. Immediately after thawing, blastocysts showed equivalent cell membrane permeabilization after both cryopreservation procedures, while alterations in nuclear staining were more frequent in vitrified embryos. After culture, similar survival and hatching rates were observed. Both procedures decreased cell number immediately after thawing and after 72 h. However, the number of TE cells was lower in frozen embryos than in vitrified ones. In relation to this, frozen blastocysts showed a decrease in glucose, pyruvate, and oxygen uptake, although those parameters were not altered in vitrified embryos. An increased glycolytic activity was also observed in frozen embryos, indicating a stress response to this procedure. [less ▲]

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See detailEffect of Cooling and Shear Rates on Physicochemical Properties of Binary Fat Blends Based on Shea Stearin
Danthine, Sabine ULg; Delatte, Sophie; Smith, Kevin M. et al

Conference (2016, May)

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See detailEffect of cooling on the behaviour of a steel beam under fire loading including the end joint response
Simoes da Silva, Luis; Santiago, Aldina; Vila Real, Paulo et al

in Proceedings of the 9th International Conference on Civil and Structural Engineering Computing (2003)

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See detailEffect of corn steep liquor supplementation and scale up on Lactococcus starter production.
Hamdi, M.; Hamza, S.; Mtimet, N. et al

in Bioprocess and Biosystems Engineering (2000), 22

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See detailEffect of Corn Substitution by Sorghum Grain with Low Tannin Content on Broilers Production: Animal Performance, Nutrient Digestibility and Carcass Characteristics
Mamadou Tandiang, Diaw; Thiam Diop, Mamadou; Dieng, Abdoulaye et al

in International Journal of Poultry Science (2014), 13(10), 568-574

The effect of substituting corn with sorghum grains with low tannin content (LTC) on broilers performances was investigated in a 6-week feeding trial. Seven hundred fifty 1-day old chicks and not sexed ... [more ▼]

The effect of substituting corn with sorghum grains with low tannin content (LTC) on broilers performances was investigated in a 6-week feeding trial. Seven hundred fifty 1-day old chicks and not sexed Coob 500 were used in this test. These animals were separated into five groups with three replicates of 50 birds for each one. A control diet with 50% of corn was used in the control group. Three other diets where corn was substituted by conventional sorghum in 1/3, 2/3 and 3/3 were given respectively to the G1/3, G2/3 and G3/3 groups. The GLTC groups received diets with total substitution of maize by sorghum with LTC. No significant difference was shown for the body weight between the control and the GLTC groups (respectively 1303 and 1418 g). But the use of conventional sorghum decreases significantly the broilers weight live (p>0.05) with the lower weight performances (1128 to 1225 g). Mortalities were similar for the different groups. It’s always results to climatic environment which was identical for the different group. No difference has been observed for the carcass dressing percentage (68 to 76%). For the nutrients digestibility, except the fat matter which was difference and higher (more than 92%), dry matter, ash and then metabolizable energy were similar (p>0.05) in the starting and growing diets. [less ▲]

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See detailEffect of correlations on the momentum distribution of protons in 208Pb
Jaminon, Martine ULg; Mahaux, Claude ULg; Ngô, Hélène

in Nuclear Physics A (1986), 452

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See detailEffect of crisis of recurrent airway obstruction on indices of oxidative stress in the bronchoalveolar lavage of horses
Art, Tatiana ULg; Kirschvink, Nathalie; Smith, N. et al

in Pflügers Archiv : European Journal of Physiology (1998)

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See detailEffect of cross country on plasma levels of myeloperoxidase in saddle ponies
Art, Tatiana ULg; Franck, Thierry ULg; Gangl, M. et al

in Abstracts book of iceep (2006)

Detailed reference viewed: 19 (9 ULg)