Browsing Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others      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 Showing results 32641 to 32660 of 125326     1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638     Dispersión de semillas por coleópteros coprófagosCulot, Laurence Scientific conference (2010, March 09)Detailed reference viewed: 26 (1 ULg) Dispersión de semillas por primatesCulot, Laurence Scientific conference (2010, March 08)Detailed reference viewed: 21 (0 ULg) Dispersion des températures d'homogénéisation des inclusions aqueuses: ébullition ou division par étranglement?Darimont, Anne ; Coipel, Jacquesin Chemical Geology (1982), 37Detailed reference viewed: 7 (0 ULg) Dispersion et Prédation des diaspores de Coula edulis Baill. en forêt sempervirente du GabonMoupela, Christian ; Vermeulen, Cédric Conference (2012, October 04)Detailed reference viewed: 26 (9 ULg) Dispersion nitroxide mediated polymerization of methyl methacrylate in supercritical carbon dioxide using in situ formed stabilizersGrignard, Bruno ; Phan, Tran; Bertin, Denis et alin Polymer Chemistry (2010), 1(6), 837-840PMMA microspheres were successfully prepared in supercritical carbon dioxide by controlled dispersion nitroxide mediated polymerization of methyl methacrylate using perfluorinated stabilizers that were ... [more ▼]PMMA microspheres were successfully prepared in supercritical carbon dioxide by controlled dispersion nitroxide mediated polymerization of methyl methacrylate using perfluorinated stabilizers that were generated “in situ”. [less ▲]Detailed reference viewed: 31 (12 ULg) Dispersion nitroxide mediated polymerization of MMA in supercritical carbon dioxideGrignard, Bruno ; Gigmes, Didier; Jérôme, Christine et alPoster (2009, May 14)Controlled dispersion Nitroxide Mediated Polymerization (NMP) of methyl methacrylate (MMA) was successfully carried out for the first time in supercritical carbon dioxide (scCO2) in the presence of CO2 ... [more ▼]Controlled dispersion Nitroxide Mediated Polymerization (NMP) of methyl methacrylate (MMA) was successfully carried out for the first time in supercritical carbon dioxide (scCO2) in the presence of CO2-philic perfluorinated surfactant that was generated “in situ”. The control of the MMA polymerization relies on the strategy developed by Charleux et al. that consists of using a SG1-based alkoxyamine, i.e. the block-builder, in the presence of small amount of styrene. In a first step, CO2 soluble polyheptadecafluorodecylacrylate was prepared in scCO2 using block-builder as an alkoxyamine. In a second step, nitroxide SG1 mediated dispersion polymerization of MMA was conducted at 70°C and 300 bar in the presence of 5 w% of SG1 terminated surfactant compared to the monomer. Different monomer to alkoxyamine molar ratios were investigated in order to target different molecular weights. In each case, the monomer conversion was high (>90 %), the experimental molecular weight was in good agreement with the theoretical value and the polydispersity was narrow (Mw/Mn ~1.2). Moreover, after depressurisation of the cell, PMMA was collected as a free flowing powder consisting of small sized microspheres. [less ▲]Detailed reference viewed: 64 (8 ULg) Dispersion of multiwalled carbon nanotubes in water by ligninRochez, Olivier; Zorzini, Gwendoline; Amadou, Julien et alin Journal of Materials Science (2013), 48(14), 4962-4964Multiwalled carbon nanotubes (MWCNT) can be stably dispersed in water with small amount of lignin. One-step dispersion in the 20.0 g/L concentration range is achieved at room temperature with excellent ... [more ▼]Multiwalled carbon nanotubes (MWCNT) can be stably dispersed in water with small amount of lignin. One-step dispersion in the 20.0 g/L concentration range is achieved at room temperature with excellent electrical properties of MWCNT. Lignin is depicted to act as an anti-static agent. [less ▲]Detailed reference viewed: 82 (31 ULg) Dispersion of platinum modified carbon nanotubes within fuel cell membranesThomassin, Jean-Michel ; Caldarella, Giuseppe ; Germain, Albert et alPoster (2008, May 22)Detailed reference viewed: 21 (5 ULg) Dispersion of the liquid trickle flow thhrough packed-bedsCrine, Michel ; Asua, José Maria; Marchot, Pierre et alConference (1981)Detailed reference viewed: 7 (0 ULg) Dispersion primaire des graines par deux espèces de tamarins sympatriques, Saguinus fuscicollis et Saguinus mystax, et destin des graines après la dispersionCulot, Laurence Conference (2009, October 23)Detailed reference viewed: 5 (0 ULg) Dispersion relations for meson-proton and proton-proton forward elastic scatteringAlkin, A.; Cudell, Jean-René ; Martynov, E.in Cudell, Jean-René; Lansberg, Jean-Philippe; Mancusi, Davide (Eds.) 30 Years of Strong Interactions: a Three-Day Meeting in Honour of Joseph Cugnon and Hans-Jürgen Pirner (2012)An analysis of the data on forward $pp, \bar pp, \pi^{\pm}p$ and $K^{\pm}p$ scattering is performed making use of the single- and double-subtraction integral and comparing with derivative dispersion ... [more ▼]An analysis of the data on forward $pp, \bar pp, \pi^{\pm}p$ and $K^{\pm}p$ scattering is performed making use of the single- and double-subtraction integral and comparing with derivative dispersion relations for amplitudes. Various pomeron and odderon models for the total cross sections are considered and compared. The real part of the amplitude is calculated via dispersion relations. It is shown that the integral dispersion relations lead to a better description of the data for $\sqrt{s}>$5 GeV. Predictions of the considered models for the TOTEM experiment at LHC energies are given [less ▲]Detailed reference viewed: 12 (1 ULg) Displacement and equilibrium models in the finite element methodFraeijs de Veubeke, Baudouin in Zienkiewicz, O. C.; Holister, G. S. (Eds.) Stress Analysis (1965)A capital contribution to the finite element method, including for the first time equilibrium models, dual analysis, the quadratic displacement element, a discussion of mixed formilation, and the ... [more ▼]A capital contribution to the finite element method, including for the first time equilibrium models, dual analysis, the quadratic displacement element, a discussion of mixed formilation, and the limitation principle. [less ▲]Detailed reference viewed: 1318 (6 ULg) Displacement echoes: Classical decay and quantum freezePetitjean, Cyril ; Bevilaqua, Diego V.; Heller, Eric J. et alin PHYSICAL REVIEW LETTERS (2007), 98(16), 164101-4Motivated by neutron scattering experiments, we investigate the decay of the fidelity with which a wave packet is reconstructed by a perfect time-reversal operation performed after a phase-space ... [more ▼]Motivated by neutron scattering experiments, we investigate the decay of the fidelity with which a wave packet is reconstructed by a perfect time-reversal operation performed after a phase-space displacement. In the semiclassical limit, we show that the decay rate is generically given by the Lyapunov exponent of the classical dynamics. For small displacements, we additionally show that, following a short-time Lyapunov decay, the decay freezes well above the ergodic value because of quantum effects. Our analytical results are corroborated by numerical simulations. [less ▲]Detailed reference viewed: 6 (0 ULg) Displacement Extrapolation Method : An alternative to J-integral for stress intensity factors computation using X-FEMMinnebo, Hans; Majérus, Julien; Noels, Ludovic Conference (2010)Stress intensity factors (SIFs) computation techniques based on J-integral methods [1] are widely used in finite element codes. However, the Displacement Extrapolation Method (DEM) [2] is an alternative ... [more ▼]Stress intensity factors (SIFs) computation techniques based on J-integral methods [1] are widely used in finite element codes. However, the Displacement Extrapolation Method (DEM) [2] is an alternative way to compute them. The idea is to process an extrapolation based on the relative displacement of the crack face nodes. This method is generally less accurate than integral methods, but it requires much less computational resources. The method is well documented and is implemented in some finite element software. The X-FEM introduced in [3] is suited for crack problems. However, the literature on DEM in the X-FEM case seems to be non-existent in the present time. This paper tries to fill this lack in the literature by describing a new method using X-FEM. The approach followed here is only developed for Linear Elastic Fracture Mechanics. Note that the finite element software Code_Aster [4] already computes SIFs with DEM in X-FEM, but in a slightly different way. [less ▲]Detailed reference viewed: 214 (9 ULg) Displacement measurements of a parabolic reflector by holographic interferometry in the long-wavelength infraredVandenrijt, Jean-François ; Georges, Marc ; Thizy, Cédric et alin International Astronautical Congress 2010 (2010, September)Deformation metrology of complex shape space structure and reflectors is a recurrent problem addressed by ESA. Consequently, suitable measurement techniques have to be developed and validated to support ... [more ▼]Deformation metrology of complex shape space structure and reflectors is a recurrent problem addressed by ESA. Consequently, suitable measurement techniques have to be developed and validated to support relevant on-ground qualification and verification testing. Holographic techniques in the visible wavelengths are common for measuring the surface displacement of object. However the short wavelength induces high stability criteria which are so severe that they often prevent the measurement of large space structures under good conditions. We propose to use a wavelength longer than the usual visible ones to render such holographic displacement measurement techniques less sensitive to external perturbations. For this we consider CO2 laser emitting at 10.6 μm which correspond to the long-wavelength infrared (LWIR) spectrum. The most important element for performing holography is to use an adequate recording medium. However no convincing holographic recording media exists in LWIR and we decided to investigate the possibility of electronic hologram recording, such as electronic speckle pattern interferometry (ESPI). This possibility is feasible nowadays thanks to various thermal imaging technologies such has uncooled microbolometers sensors commonly found in thermographic cameras. In this study, we analyse how it is possible to measure surface displacements of specular objects, which do not produce speckle, using speckle interferometry by the mean of a scattering diffuser. We then apply the ESPI technique at LWIR for measuring displacements of a large parabolic reflector. [less ▲]Detailed reference viewed: 40 (5 ULg) DISPLACEMENT OF 18F-FALLYPRIDE BINDING WITH HALOPERIDOL IN A WITHIN-SUBJECT DESIGN USING A BETA MICROPROBEWarnock, Geoffrey ; Goblet, David ; Lemaire, Christian et alin Journal of Cerebral Blood Flow & Metabolism (2009, October), 29(S1), 352-353Detailed reference viewed: 44 (14 ULg) Displacements of StructuresSamyn, Philippe; Latteur, Pierre (1998, September)Detailed reference viewed: 8 (0 ULg) Displaying in the dark: light-dependent alternative mating tactics in the Alpine newtDenoël, Mathieu ; Doellen, Joffreyin Behavioral Ecology and Sociobiology (2010), 64(7), 1171-1175Environment plays a major role for determining the kind of courtship behaviours or alternative mating tactics employed, but the effect of physical variables on fitness has received little attention. The ... [more ▼]Environment plays a major role for determining the kind of courtship behaviours or alternative mating tactics employed, but the effect of physical variables on fitness has received little attention. The Alpine newt courts during both day and night times and exhibits a complex suite of behaviours involving olfactory, visual and tactile cues. Displaying in both dark and light conditions may increase the number of mating opportunities and alleviate predation risk, but the frequency and efficacy of the various tactics deployed may vary across light conditions, leading males to vary their use of these tactics across different light regimes. To test this hypothesis, we video-recorded sexual encounters at two light intensities in a controlled experimental design. When courting in the dark, males used comparatively more olfactory rather than visual displays. They also relied more on positive feedback from the female before releasing a spermatophore for her to pick up. The particular mix of tactics used under each light condition is likely to be adaptive because in the dark (1) visual communication is hampered, making olfactory displays possibly more effective and (2) males depositing spermatophores are more likely to lose fertilizations to competitors. Mating in light and dark conditions has similar reproductive payoffs, which shows that displaying in the dark is not detrimental and may even be advantageous if predation risk is reduced at night. These results confirm the importance of taking into account physical variables to understand the evolution of sexual communication in animals. [less ▲]Detailed reference viewed: 185 (19 ULg) - Disponibilité des ressources et innovation managériale. Quelles mutations pour les juridictions du travail belges et françaises face aux évolutions de leurs environnements?Schoenaers, Frédéric Doctoral thesis (2003)Detailed reference viewed: 51 (12 ULg) La disponibilité du phosphore dans les sols agricolesRenneson, Malorie Scientific conference (2011, May 06)Detailed reference viewed: 28 (9 ULg)