References of "Paper published in a book"
     in
Bookmark and Share    
Peer Reviewed
See detailQuantification of bST in milk by electrochemiluminescence: a way for detection of treated cows.
Renaville, Robert ULg; Deaver, D.; Baronheid, Christophe et al

in Proceedings of the 4th International Conference on Farm Animal Endocrinology (2001, October)

Detailed reference viewed: 19 (0 ULg)
Full Text
See detailTopology optimization with self-weight loading: (un-expected) problems and solutions
Bruyneel, Michaël ULg; Duysinx, Pierre ULg

in Bendsoe, M. P.; Olhoff, Niels; Rassmussen, John (Eds.) Proceedings of the 2nd Max Planck Workshop on Engineering Design Optimization (2001, October)

Detailed reference viewed: 43 (0 ULg)
Peer Reviewed
See detailEffects of peripartum dietary supplements on productive/reproductive parameters, and plasma concentration of Insulin-like growth factor (IGF)-I in camels.
Hammadi, M.; Khorchani, T.; Moslah, M. et al

in Proceedings of the International Twin Conference on Reproduction/Production in Camelids. (2001, October)

Detailed reference viewed: 6 (0 ULg)
See detailLe froment d'hiver
Bodson, Bernard ULg; Vancutsem, Françoise ULg; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2001, September 13)

Detailed reference viewed: 5 (0 ULg)
See detailEscourgeon et Orge d'hiver fourragers
Herman, Jean-Luc; Couvreur, Luc; Monfort, Bruno et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2001, September 13)

Detailed reference viewed: 3 (0 ULg)
See detailAperçu de la qualité des froments d'hiver en 2001
Sinnaeve, Geoges; Herman, Jean-Luc; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2001, September 13)

Detailed reference viewed: 2 (0 ULg)
See detailMesures agri-environnementales (MAE) en froment d'hiver
Couvreur, Luc; Bodson, Bernard ULg; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2001, September 13)

Detailed reference viewed: 2 (0 ULg)
Peer Reviewed
See detailSynthesis of Pd/SiO2, Ag/SiO2 and Cu/SiO2 catalysts by sol-gel process : study of metal dispersion and nucleation phenomenon
Lambert, Stéphanie ULg; Ferauche, Fabrice; Heinrichs, Benoît ULg et al

in CD-ROM of full abstracts of the 2nd International Conference on Silica Science and Technology, SILICA 2001 (4 p.) (2001, September 03)

Detailed reference viewed: 29 (11 ULg)
Full Text
See detailA Time-Scale Decomposition-Based Simulation Tool for Voltage Stability Analysis
Loud, Lester; Rousseaux, Patricia ULg; Lefebvre, Daniel et al

in Proceedings of the IEEE Porto Power Tech Conference (2001, September)

This paper proposes a time domain simulation tool combining Full Time Scale (FTS) simulation in the short-term period following a contingency and Quasi Steady-State (QSS) approximation for the long-term ... [more ▼]

This paper proposes a time domain simulation tool combining Full Time Scale (FTS) simulation in the short-term period following a contingency and Quasi Steady-State (QSS) approximation for the long-term phase. A criterion is devised to automatically switch from FTS to QSS simulation as soon as sufficient damping of short-term dynamics is reached. Various comparisons with FTS simulations have been performed on the Hydro-Qn6bec system. The proposed method is shown to combine accuracy of FTS with computational efficiency of QSS. Sensitivity of simulations to load model and the need for updating the whole model with frequency variations are also discussed. [less ▲]

Detailed reference viewed: 70 (1 ULg)
Full Text
See detailOnline Flight Flutter Testing
Dimitriadis, Grigorios ULg; Cooper, Jonathan E

in Link, M. (Ed.) Proceedings of the International Conference on Structural System Identification (2001, September)

A number of different identification methods are considered as candidate approaches to undertake online flight flutter testing. Rather than flying the test aircraft to a new flight condition and then ... [more ▼]

A number of different identification methods are considered as candidate approaches to undertake online flight flutter testing. Rather than flying the test aircraft to a new flight condition and then performing a data analysis at a constant flight condition, it is shown how it is feasible to track changes in frequencies and damping ratios as the flight speed is increased. It is also possible to provide an updated estimate of the predicted flutter speed, giving the flight engineers added confidence in the margin of safety. Both frequency and time domain methods are evaluated on a simulated 3 DOF aeroelastic system. These preliminary results show that such an approach is feasible although further work is required to determine the best testing and analysis approach. [less ▲]

Detailed reference viewed: 33 (2 ULg)
Full Text
See detailLoad Shedding Controllers against Voltage Instability: a comparison of designs
Moors, Cedric; Lefebvre, Daniel; Van Cutsem, Thierry ULg

(2001, September)

This paper discusses and compares three types of undervoltage load shedding closed-loop controllers in terms of performances and design computational effort. We first describe the various controllers and ... [more ▼]

This paper discusses and compares three types of undervoltage load shedding closed-loop controllers in terms of performances and design computational effort. We first describe the various controllers and identify the parameters to be optimized. Next, we present an optimization methodology applicable to all three types of controllers. This approach allows to find the controller parameters which optimize an overall performance objectiw. Results are presented on the Hydro-Qukbec system, in which load shedding is presently planned. [less ▲]

Detailed reference viewed: 61 (0 ULg)
See detailA Test Cryostat for Herschel-PACS Mechanism
Renotte, Etienne ULg; Barzin, Pascal ULg; Guiot, Marc ULg et al

in SCHÜRMANN B. (Ed.) ESA-SP-467 (2001, September)

The PACS Grating Assembly consists of a flat ruled grating of 320x80 mm²; its positioning mechanism; and launch-locking system. The Grating Assembly is part of the PACS Focal Plane Unit (FPU) and is ... [more ▼]

The PACS Grating Assembly consists of a flat ruled grating of 320x80 mm²; its positioning mechanism; and launch-locking system. The Grating Assembly is part of the PACS Focal Plane Unit (FPU) and is operated at liquid helium temperature (4K). It is remote-controlled from the Detector & Mechanism Controller (DEC/MEC), which is located on the Herschel Service Module. The grating shall be capable of accurate positioning (4 arcsec) within a large angular throw (40 arcdeg) and restricted dissipation to the 4K heat sink (< 5 mW). The development of the Grating mechanism controller has urged the need for a cryogenic simulator of the Grating Assembly with regard to the large change in value of mechanical and electrical characteristics between room temperature and liquid helium temperature. The simulator consists of a functional prototype of the Grating Assembly and a dedicated helium cryostat with appropriate interfaces. The test cryostat is a homemade facility (CSL) designed to cool down the prototype (and subsequent models) to liquid helium temperature. The test set-up also provides relevant instrumentation such as cryogenic temperature read-out, electrical feedthroughs toward the payload and optical viewport. [less ▲]

Detailed reference viewed: 38 (7 ULg)
Full Text
See detailExperimental Validation of the Constant Level method for Identification of Nonlinear Multi Degree of Freedom Systems
Dimitriadis, Grigorios ULg

in Starr, A. G.; Rao, R. B. K. N. (Eds.) Proceedings of the 14th International Congress on Condition Monitoring and Diagnostic Engineering Management (2001, September)

System identification methods for nonlinear dynamical systems could find uses in many applications such as condition monitoring, finite element model validation and stability determination. The ... [more ▼]

System identification methods for nonlinear dynamical systems could find uses in many applications such as condition monitoring, finite element model validation and stability determination. The effectiveness of existing nonlinear system identification techniques is limited by various factors such as the complexity of the system under investigation and the type of nonlinearities present. In this work, the Constant Level Identification approach, which can identify multi degree-of-freedom systems featuring any type of nonlinear function, including discontinuous functions, is validated experimentally. The method is shown to yield accurate identifications of an experimental dynamical system featuring two types of stiffness nonlinearity. The full equations of motion are accurately extracted, even in the presence of a discontinuous nonlinearity. [less ▲]

Detailed reference viewed: 4 (1 ULg)
Full Text
See detailExperimental identification of a non-linear beam, conditionned reverse path method
Kerschen, Gaëtan ULg; Lenaerts, Vincent; Golinval, Jean-Claude ULg

in International Conference on Structural Systems Identification, Kassel, 2001 (2001, September)

A new spectral approach for identification of multi-degree-of-freedom nonlinear systems, called the conditioned reverse path method, has recently been introduced. The key idea of this method is to ... [more ▼]

A new spectral approach for identification of multi-degree-of-freedom nonlinear systems, called the conditioned reverse path method, has recently been introduced. The key idea of this method is to eliminate the distortions caused by the presence of non-linearities in frequency response functions. Conditioned frequency responses are then computed and yield the underlying linear properties without influence of non-linearities. The non-linear coefficient is estimated in a second step. The aim of the paper is twofold. Firstly, the conditioned reverse path method is described in details together with the spectral conditioning techniques. Secondly, the ability of this technique to identify the behaviour of an experimental cantilever beam with a geometrical non-linearity is tested. [less ▲]

Detailed reference viewed: 23 (0 ULg)
Peer Reviewed
See detailUse of X-ray microtomography to follow the convective heat drying of wastewater sludges
Léonard, Angélique ULg; Blacher, Silvia ULg; Marchot, Pierre ULg et al

in Proceedings of the 6th World Congress of Chemical Engineering (2001, September)

Detailed reference viewed: 11 (3 ULg)
Full Text
Peer Reviewed
See detailA Module-Oriented Optimization Tool
Rigo, Philippe ULg

in PRADS’2001, 8th Int. Symposium on Practical Design of Ships and other Floating Structures,vol 1 (2001, September)

Detailed reference viewed: 25 (0 ULg)
Full Text
Peer Reviewed
See detailSensitivity Analysis on Ultimate Hull Bending Moment
Rigo, Philippe ULg; Toderan, C.; Yao, T.

in PRADS’2001, 8th Int. Symposium on Practical Design of Ships and other Floating Structures, vol.2 (2001, September)

Detailed reference viewed: 33 (1 ULg)
Full Text
Peer Reviewed
See detailUltimate Strength of Longitudinally Stiffened Panels: Multi-Criteria Comparative Analysis
Rigo, Philippe ULg; Pradillon, J. Y.; Quesnel, T. et al

in PRADS’2001, 8th Int. Symposium on Practical Design of Ships and other Floating Structures, vol.2 (2001, September)

Detailed reference viewed: 34 (0 ULg)
Peer Reviewed
See detailIntegration of fuzzy linear optimization and scenario analysis in network flow problems: disaster response perspective
Barbarosoglu, Gulay; Arda, Yasemin ULg

in IEPM 01, International Conference in Industrial Engineering and Production Management, Québec, Canada, 20-23 August 2001 (2001, August 20)

In this paper, we address the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and the ... [more ▼]

In this paper, we address the problem of transporting vital commodities and emergency personnel during the response stage of a disaster relief operation by integrating fuzzy linear optimization and the principles of scenario analysis. We treat this transportation system as a probabilistic multi-commodity multi-modal network flow problem and first develop a fuzzy model that allows the satisfaction of demand requirements through different supply nodes over a fuzzy network. Since the available information in case of disasters is generally vague and imprecise about the values of model parameters, fuzzy linear optimization is employed to deal with this uncertainty and to generate different scenarios depending upon the preferences of the decision maker. Then these scenarios are handled within the framework of the scenario analysis by defining a scenario as a joint realization of the uncertain parameters. Here, scenario analysis method can be considered as a search for a robust solution that guarantees the maximum satisfaction of demands with the minimum transportation cost. [less ▲]

Detailed reference viewed: 32 (1 ULg)
Full Text
See detailWeighing nearby stars with GAIA ?
Dib, S.; Surdej, Jean ULg; Claeskens, Jean-François ULg

in Conference proceedings of "European meeting, Census of the Galaxy: Challenges for photometry and spectrometry with GAIA. (2001, August 01)

Microlensing consists in two major effects: (1) variation in the apparent position of the background sources (astrometric component) and (2) flux variations of the background sources (photometric ... [more ▼]

Microlensing consists in two major effects: (1) variation in the apparent position of the background sources (astrometric component) and (2) flux variations of the background sources (photometric component). While the latter has been extensively used in the search for dark objects in the Galactic disk and halo (projects like MACHO (Alcock et al, 1997), EROS (Derue et al, 1999), OGLE (Paczynski et al, 1994)), the first effect has not yet been part of a systematic observational program, simply because the observations of very slight displacements in the positions of background sources requires an astrometric accuracy which current telecopes do not yet provide. We investigate here whether the astrometric accuracy of GAIA could enable such measurements and, as a consequence, enable new, direct and original measurements of the mass of nearby stars. [less ▲]

Detailed reference viewed: 32 (1 ULg)
Full Text
Peer Reviewed
See detailCollaborative learning in a virtual campus : allowing future teachers live what their future learners could live about technologies and education
Denis, Brigitte ULg

in 9th European conference EARLI Bridging instruction to learning, University of Friburg - August 28-September 1, 2001 (2001, August)

This paper presents a European project called Socrates LEARN-NETT1 based on a distance collaborative learning realised with the help of a virtual campus. This one offers functions facilitating the ... [more ▼]

This paper presents a European project called Socrates LEARN-NETT1 based on a distance collaborative learning realised with the help of a virtual campus. This one offers functions facilitating the navigation inside the campus, giving access to some information related to the LEARN-NETT community (students, tutors, groupworks, news, etc), regulation and management of collaborative work, communication tools, sharing of resources, … [less ▲]

Detailed reference viewed: 19 (4 ULg)
Full Text
Peer Reviewed
See detailPredicting the fatigue notch effect from partial experimental data
Debongnie, Jean-François ULg

in Culley, S.; Duffy, A.; McMahon, C. (Eds.) et al Proceedings of the 13th International Conference on Engineering Design. Design methods for performance and sustainability (2001, August)

This paper is devoted to a new method of fatigue strength assessment, which is based on similarity relations and former results of the author on the gradient method.

Detailed reference viewed: 17 (3 ULg)
Full Text
Peer Reviewed
See detailX-ray microtomography : a new tool to follow soft material shrinkage during convective drying
Léonard, Angélique ULg; Blacher, Silvia ULg; Marchot, Pierre ULg et al

in Proceedings of the 2nd World Congress on Industrial Process Tomography, Hannover, Germany, Aug 29-31, 2001 (2001, August)

Detailed reference viewed: 17 (1 ULg)
Full Text
See detailSpectroscopic Properties of New IR Galaxies Detected in the European Large Area ISO Survey
Cabrera-Guerra, F.; Perez-Fournon, I.; Gonzalez-Solares, E. A. et al

in The Promise of the Herschel Space Observatory (2001, July 01)

We present preliminary results of multi-object spectroscopy of new mid-, and far-infrared selected galaxies detected in the European Large Area ISO Survey (ELAIS). The data have been obtained with the ... [more ▼]

We present preliminary results of multi-object spectroscopy of new mid-, and far-infrared selected galaxies detected in the European Large Area ISO Survey (ELAIS). The data have been obtained with the fibre spectrographs WYFFOS at the William Herschel Telescope (Observatorio del Roque de los Muchachos, ORM, Canary Islands) and Hydra at the WIYN Telescope (Kitt Peak Observatory, Arizona). The sample includes ISO sources detected at 7, 15 and 90 microns and radio sources from our deep VLA survey in the ELAIS areas. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
See detailMid-FIR Properties of ELAIS Sources
Marquez, I.; Masegosa, J.; Morel, Thierry ULg et al

in The Promise of the Herschel Space Observatory (2001, July 01)

We present the properties of all the galaxies detected by ISO at 7, 15 and 90 microns in ELAIS northern fields. The spectral energy distribution (SED) of those 20 galaxies with IRAS detections can ... [more ▼]

We present the properties of all the galaxies detected by ISO at 7, 15 and 90 microns in ELAIS northern fields. The spectral energy distribution (SED) of those 20 galaxies with IRAS detections can generally be well fitted by a predominant cirrus component plus a modest starburst contribution. Follow-up spectroscopy has shown that all the objects are emission-line galaxies but without a very intense star formation event. Most of the galaxies analyzed by means of optical R band photometry result to host an important exponential disk component, in good agreement with the SED IR modelling. We note that galaxies with morphological signs of perturbations seem to show slightly higher f[SUB]15[/SUB]/f[SUB]6.7[/SUB] ratios, indicating that star formation could be more important in them. One of the objects is a broad-line, radio-quiet quasar at z=1.099; its spectral energy distribution indicates that it is a hyperluminous infrared galaxy (HLIG), the first HLIG detected in the ELAIS areas. [less ▲]

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailAdaptive $\lambda$-Tracking of Nonlinear Systems with Higher Relative Degree Using Reduced-Order High Gain Control
Bullinger, Eric ULg; Findeisen, R.; Allgöwer, F.

in Proc. of the IFAC Nonlinear Control Systems Design, NOLCOS01 (2001, July)

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailHolographic camera with BSO applied to microgravity fluid experiment aboard ISS
Georges, Marc ULg; Joannes, Luc; Thizy, Cédric ULg et al

in Nolte, D.; Salamo, G.; Siahmakoun, A. (Eds.) et al Photorefractive Effects, Materials, and Devices (2001, July)

We present the preliminary development steps of a holographic interferometer using a BSO crystal for the monitoring of fluids experiments under microgravity conditions. This set-up could be included in ... [more ▼]

We present the preliminary development steps of a holographic interferometer using a BSO crystal for the monitoring of fluids experiments under microgravity conditions. This set-up could be included in the Fluid Science Laboratory (FSL, a module dedicated to fluid physics experiment onboard the International Space Station-ISS). Some preliminary studies have been carried out. An optimized configuration has been found allowing a fast recording (50 milliseconds) and large number of readouts (>1000) for analysis of events over a long period without reducing the measurement resolution. We present examples of Rayleigh-Benard convection quantitative measurement performed with a laboratory instrument prototype. [less ▲]

Detailed reference viewed: 18 (2 ULg)
Peer Reviewed
See detailEctopic ureters
Hamaide, Annick ULg

in Proceedings du 1st Surgical Forum ECVS (2001, July)

Detailed reference viewed: 8 (2 ULg)
See detailInteractive Tool Visualising and Optimising Building Envelope Performances during the Architectural Sketch Design
Hauglustaine, Jean-Marie ULg

in Banissi, E.; Khosrowshahi, F.; Sarfaz, M. (Eds.) et al 2001 Information Visualisation IV (2001, July)

The PC software AMCE is proposing building actors (owner, project authors...) a Multiple Criteria Decision Aid (MCDA) procedure to optimise the building envelope about cost and energy performances, during ... [more ▼]

The PC software AMCE is proposing building actors (owner, project authors...) a Multiple Criteria Decision Aid (MCDA) procedure to optimise the building envelope about cost and energy performances, during the sketch design, when most important choices are fixed, those having impact on future building's cost and use. Two main modules are linked, where any actor interactively goes in any time: - the first one manages parameters describing the project requirements; - the graphic pen-based module allows to draw the sketch; it calculates geometric parameter values and puts them back in the first module. Permanently informed on foreseeable performances, the user can any time search for optimal scenario giving best satisfaction (monoactor optimisation) or most preferred compromise (multiactors optimisation): at his disposal, he has at lot of graphs illustrating the performance sensitivity to parameter variations, as well as an optimisation procedure using a genetic algorithm to find the most efficient parameter set. [less ▲]

Detailed reference viewed: 26 (0 ULg)
Peer Reviewed
See detailRelation between ectopic ureters and USMI
Hamaide, Annick ULg

in Proceedings du 1st Surgical Forum ECVS (2001, July)

Detailed reference viewed: 13 (5 ULg)
Full Text
Peer Reviewed
See detailCompact photorefractive holographic camera and its applications in interferometry
Georges, Marc ULg; Scauflaire, Véronique; Lemaire, Philippe ULg

in Nolte, D.; Salamo, G.; Siahmakoun, A. (Eds.) et al Photorefractive Effects, Materials, and Devices (2001, July)

A compact holographic interferometer that uses a photorefractive crystal of the sillenite family as holographic recording medium is presented. It was developed to provide high accuracy displacement ... [more ▼]

A compact holographic interferometer that uses a photorefractive crystal of the sillenite family as holographic recording medium is presented. It was developed to provide high accuracy displacement measurements of scattering objects, together with a high degree of flexibility, portability and versatility in function of the application. We briefly discuss the main technical aspects leading to a compact device. We present a couple of recent applications, among which the coefficient of thermal expansion of composite structures is measured, piezosheets calibration and fingerprint detection. [less ▲]

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailMultiple exposure holographic interferometry with sillenite crystals applied to vibration measurement
Georges, Marc ULg; Thizy, Cédric ULg; Lemaire, Philippe ULg et al

in Nolte, D.; Salamo, G.; Siahmakoun, A. (Eds.) et al Photorefractive Effects, Materials, and Devices (2001, July)

A holographic camera is presented, which uses a sillenite crystal as dynamic recording medium. The camera operates in a pulse regime and is used to provide vibration analysis of an object. A 4 pulse real ... [more ▼]

A holographic camera is presented, which uses a sillenite crystal as dynamic recording medium. The camera operates in a pulse regime and is used to provide vibration analysis of an object. A 4 pulse real-time holographic technique was implemented to measure the amplitude and phase of the vibration. The implementation of this technique required bringing under control a Q-switched YAG laser. We present the experimental results for a metallic plate driven by a vibrating loud speaker. [less ▲]

Detailed reference viewed: 6 (1 ULg)
Peer Reviewed
See detailNon-neoplastic surgical diseases of the vagina and vulva
Hamaide, Annick ULg

in Proceedings du 1st Surgical Forum ECVS (2001, July)

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailEvaluation des dispositifs de formation continue en FOAD
Leclercq, Dieudonné ULg

in Actes de l'Université d'Eté (2001, July)

Detailed reference viewed: 52 (10 ULg)
Full Text
See detailRepresenting Periodic Temporal Information with Automata
Wolper, Pierre ULg

in Proc. Eighth International Symposium on Temporal Representation and Reasoning (2001, June)

Motivated by issues in temporal databases and in the verification of infinite-state systems, this talk considers the problem of representing periodic dense time information. Doing so requires handling a ... [more ▼]

Motivated by issues in temporal databases and in the verification of infinite-state systems, this talk considers the problem of representing periodic dense time information. Doing so requires handling a theory that combines discrete and continuous variables, since discrete variables are essential for representing periodicity. An automata-based approach for dealing with such a combined theory is thus introduced. [less ▲]

Detailed reference viewed: 31 (3 ULg)
Full Text
Peer Reviewed
See detailThe follow-up of financial value creation indicators to prevent bankruptcies in Belgian SMEs : an empirical multivariate approach
Van Caillie, Didier ULg; Arnould, Sophie ULg

in Babson College Conference (Ed.) Acts of the 2001 Babson College Conference (2001, June)

Detailed reference viewed: 39 (4 ULg)
Full Text
See detailA time-frequency technique for the stability analysis of impulse responses from nonlinear aeroelastic systems
Dimitriadis, Grigorios ULg; Cooper, J. E.

in Proceedings of the 2001 International Forum on Aeroelasticity and Structural Dynamics (2001, June)

A time-frequency method is proposed for the analysis of response time histories from nonlinear aeroelastic systems. The approach is based on a time-varying curve-fit of the Short Time Fourier Transform of ... [more ▼]

A time-frequency method is proposed for the analysis of response time histories from nonlinear aeroelastic systems. The approach is based on a time-varying curve-fit of the Short Time Fourier Transform of the impulse response. It is shown that the method can be used in order to obtain a clear picture of the sub-critical stability of a number of aeroelastic systems with a variety of structural and aerodynamic nonlinearities. Additionally, frequency and amplitude information can be obtained for both the linear and nonlinear signatures of the response signals in the sub and post-critical regions. Finally, it is shown that, given certain types of nonlinear functions, subcritical damping trends can be extrapolated to predict bifurcation airspeeds. [less ▲]

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailA Framework for Simulation Bases Design of Ship Structures
Rigo, Philippe ULg; Karr, D.; Na, S. S. et al

in Ship Production Symposium’2001, SNAME: Ypsilanti, Michigan ,USA, Paper #9, June 2001 (2001, June)

Detailed reference viewed: 25 (0 ULg)
Full Text
Peer Reviewed
See detailLeast Cost Structural Optimization Oriented Preliminary Design
Rigo, Philippe ULg

in Ship Production Symposium’2001, SNAME, Ypsilanti, Michigan, USA, Paper #15, Juin 2001 (2001, June)

Detailed reference viewed: 43 (0 ULg)
Full Text
Peer Reviewed
See detailSolvent detection in indoor air with a sensor array
Maternova, J.; Romain, Anne-Claude ULg; Nicolas, Jacques ULg

in Proceedings of the 8th conference Eurodeur (2001, June)

Air composition in dwellings and public buildings is studied by means of gas chromatography and a sensor micro array 01D28 (MICROSENS, Swiss). Only benzene and its alkyl-derivatives are quantified. The ... [more ▼]

Air composition in dwellings and public buildings is studied by means of gas chromatography and a sensor micro array 01D28 (MICROSENS, Swiss). Only benzene and its alkyl-derivatives are quantified. The micro array 01D28 is composed of six metal oxide gas sensors (SnO2 doped by Pd) equipped with standard or inter-digited electrodes. Isothermal working mode (500oC for all sensors) is applied. Conductivities after 10 minutes of signal acquisition in the studied air are considered as characterizing its chemical composition. Discriminant Function Analysis (DFA) and different linear regression techniques (Inverse Least Squares, Principal Components Regression and Partial Least Squares) are applied to find a relation between the sensors signals and the indoor air composition as determined by the gas chromatography. The presented results suggest that the monitoring of aromatics substances in the indoor air by means of a micro-array of metal oxide gas sensors is possible. The array distinguishes polluted and non-polluted air and it can even evaluate the concentration of the benzene and the toluene. [less ▲]

Detailed reference viewed: 57 (6 ULg)
Full Text
See detailEstimating diagonal second order terms in structural approximations with quasi-Cauchy techniques
Duysinx, Pierre ULg; Nguyen, Van Hien; Bruyneel, Michaël ULg et al

in CHENG, Gen Dong (Ed.) Proceedings of the 4th World Congress of Structural and Multidisciplinary Optimization WCSMO4 (2001, June)

This paper reports preliminary results obtained when estimating diagonal second order terms to be used in structural approximations with the quasi-Cauchy updates which was recently proposed by Zhu ... [more ▼]

This paper reports preliminary results obtained when estimating diagonal second order terms to be used in structural approximations with the quasi-Cauchy updates which was recently proposed by Zhu, Nazareth, and Wolkowicz (SIAM J. of Optimization, 9 (4), 1192-1204, 1999). At first, the theory of quasi-Cauchy updates is presented. Main characteristics of the developments that were necessary to use quasi-Cauchy updates in the context of structural optimization are drawn. The available numerical results allow comparing quasi-Cauchy second order term estimations with other estimation procedures. [less ▲]

Detailed reference viewed: 38 (0 ULg)
See detailForce Limiting at CSL premises
Grodent, Christophe ULg; Cucchiaro, Antonio ULg; ronchain, philippe

(2001, June)

Detailed reference viewed: 17 (5 ULg)
Full Text
See detailComposite structures design for strength and stiffness with respect to ply thickness and/or fibers orientation
Bruyneel, Michaël ULg; Duysinx, Pierre ULg; Fleury, Claude ULg

in CHENG, Gen Dong (Ed.) Proceedings of the 4th World Congress of Structural and Multidisciplinary Optimization WCSMO4 (2001, June)

This paper presents an optimization approach that allows the design of composite structures under stiffness and strength criteria, with fibers orientations and plies thickness taken into account in the ... [more ▼]

This paper presents an optimization approach that allows the design of composite structures under stiffness and strength criteria, with fibers orientations and plies thickness taken into account in the same optimization loop. The approach is based on the sequential convex programming. An industrial application is presented. [less ▲]

Detailed reference viewed: 53 (3 ULg)
Full Text
See detailAeroelastic and Structural Design of an All-Moveable Aircraft Fin
Cooper, J. E.; Bureerat, S.; Sensberg, O. et al

in Hönlinger, Heinz (Ed.) Proceedings of the CEAS Conference on Multidisciplinary Aircraft Design and Optimization (2001, June)

The Lagrange Multi-Disciplinary Design Optimisation (MDO) code is used for the preliminary study into design aspects of a generic all-movable aircraft fin. It is shown how the control effectiveness at ... [more ▼]

The Lagrange Multi-Disciplinary Design Optimisation (MDO) code is used for the preliminary study into design aspects of a generic all-movable aircraft fin. It is shown how the control effectiveness at high speeds can be increased through variation of the attachment position and stiffness, whilst still meeting strength and aeroelastic stability constraints. [less ▲]

Detailed reference viewed: 32 (0 ULg)
Peer Reviewed
See detailCell turnover in BLV-infected sheep
Debacq, Christophe; Peremans, T.; Kerkhofs, Pierre et al

in Aids Research and Human Retroviruses": 10th International Conference on Human Retrovirology: HTLV and Related Viruses, (2001, June)

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailNumerical Simulation of Lubricated Contact between Solids in Metal Forming Processes using the Arbitrary Lagrangian Eulerian Formulation
Boman, Romain ULg; Ponthot, Jean-Philippe ULg

in Simulation of Material Processing: Theory, Methods and Application: Proceedings of the 7th International Conference NUMIFORM 2001 (2001, June)

Detailed reference viewed: 22 (10 ULg)
Peer Reviewed
See detailMigrant workers in the Pearl River Delta : Between Discursive Inclusion and Exclusion
Florence, Eric ULg

in Martiniello, Marco; Withol de Wenden, Catherine; Entzinger, Han (Eds.) Migration Between States and Markets (2001, May 17)

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailÉtude par microtomographie aux rayons X du retrait associé au séchage convectif d'une boue
Léonard, Angélique ULg; Blacher, Silvia ULg; Crine, Michel ULg

in Boudrant, J.; Pons, M.-N. (Eds.) Récents progrès en génie des procédés N°78 Vol.15 2001 : visualisation, image, modélisation (2001, May)

Detailed reference viewed: 11 (0 ULg)
Full Text
Peer Reviewed
See detailWind turbines turbulence effects on cable structures in their vicinity
Lilien, Jean-Louis ULg; keutgen, Renaud; raimarckers, Nicolas

in Proceedings of the ISCD 2001 (2001, May)

Actual wind turbines size can be as large as 80 meters diameter (1 MW and over). Behind the wind turbines, mean wind speed is sensibly reduced (approximately 50%) and turbulence severely increased. The ... [more ▼]

Actual wind turbines size can be as large as 80 meters diameter (1 MW and over). Behind the wind turbines, mean wind speed is sensibly reduced (approximately 50%) and turbulence severely increased. The spectral density power of disturbed wind can be assumed similar to classical wind but centred on the rotational speed of the motor. Due to classical speed and shape of wind turbine, corresponding key frequency for disturbed wind is close to one Hz. Any structure in the vicinity of wind turbine can be disturbed by the new wind spectrum created by the turbine, thus existing most of the time for wind speed up to 25 m/s. Cable structure, f.e. overhead lines, have clearly 1 Hz in their first modal shapes. This make them very sensible to buffeting due to the disturbed wind induced by the turbine. Due to continuous excitation, most of the year, fatigue may occur near clamping point and extra damping may be required as well as minimum distance from the wind turbine may be recommended. The anchoring tower (whose first eigenfrequency is generally close to 1 Hz for high voltage lines) will also be affected. This paper will present some simulations of overhead lines disturbances induced by wind turbine in their vicinity. The power spectral density of wind behind the turbine will be deduced from classical spectra of Davenport, but with adaptation due to the rotation of the turbine. Effects on cable will be shown and tentative recommendations of damping as well as clearances from the turbine will be suggested. [less ▲]

Detailed reference viewed: 71 (7 ULg)
Peer Reviewed
See detailTen years of data gathering of radon exhalation in the Belgian "Province of Luxembourg"
Kuske, Martyna; Debbaut, Vincent ULg; Bomboire, A. et al

in Proceedings of the Third eurosymposium on protection against radon (2001, May)

Detailed reference viewed: 17 (2 ULg)
Peer Reviewed
See detailA critical cysteine residue of bovine leukemia virus SU protein interacts with zinc and plays a role in viral infectivity.
Gatot, Jean-Stéphane; Kerkhofs, Pierre; Burny, Arsène et al

in The 2001 meeting on Retroviruses. (2001, May)

Detailed reference viewed: 13 (0 ULg)
Peer Reviewed
See detailIncidence des pratiques parentales relatives au langage écrit et oral sur les attitudes et les compétences en lecture chez les enfants de 11 ans : approche longitudinale
Schillings, Patricia ULg

in Actes du XIIe congrès de l'AIFREF, St Sauveur des Monts, Québec, 18-21 avril 2001 (2001, April)

Detailed reference viewed: 20 (1 ULg)
Full Text
Peer Reviewed
See detailImpact assessment of breeding European kingfisher (Alcedo atthis) on prey fish
Hallet, Catherine; Libois, Roland ULg

in Cowx, Ian (Ed.) Interaction between fish and birds: implications for management (abstracts) (2001, April)

Detailed reference viewed: 5 (0 ULg)
Full Text
Peer Reviewed
See detailFace milling and turning simulation with the finite element method
Masset, Luc ULg; Debongnie, Jean-François ULg; Beckers, Pierre ULg

in Habraken, Anne (Ed.) Proceedings of the 4th International ESAFORM Conference on Material Forming (2001, April)

The paper describes a new simulation tool that gives the machined surface error in face milling and turning. The form error component due to the workpiece flexibility is computed using Samcef finite ... [more ▼]

The paper describes a new simulation tool that gives the machined surface error in face milling and turning. The form error component due to the workpiece flexibility is computed using Samcef finite element code. The finite element analyses are very efficient on industrial applications thanks to the superelement method. Results are obtained in a short time which makes possible a wide range of simulations such as finding the best tool trajectory, testing several tools and cutting conditions and choosing the most suited fixture design. [less ▲]

Detailed reference viewed: 142 (6 ULg)
See detailModification génétique de la levure pour maîtriser la beta-oxydation: exemple de la production de lactone par Yarrowia lipolytica
Waché, Y.; Aguedo, Mario ULg; Marchal, E. et al

in Les outils biologiques dans les procédés et les techniques d'analyse...: conférences et communications scientifiques (2001, March)

Detailed reference viewed: 11 (0 ULg)
See detailApplications du travail musculaire excentrique en pathologies locomotrices
Croisier, Jean-Louis ULg

in Actes du colloque pluridiscipliinaire « Le travail musculaire excentrique » (2001, March)

Detailed reference viewed: 31 (1 ULg)
Peer Reviewed
See detailNon-isotopic determination of bovine growth hormone levels with a sandwich-immunoassay using detection by electrochemiluminescence (ECL).
Rehfeldt, C.; Deaver, D.; Schneider, F. et al

in Proceedings of the 45th Symposium of the German Society for Endocrinology. (2001, March)

Detailed reference viewed: 5 (0 ULg)
Full Text
See detailEvolution du conseil de fumure azotée du froment d’hiver
Bodson, Bernard ULg; Herman, Jean-Luc; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux (2001, February)

Detailed reference viewed: 21 (0 ULg)
See detailEpreuves de repositionnement angulaire
Croisier, Jean-Louis ULg; Henrotin, Yves ULg; Etienne, L. et al

in Actes de la 3ème Journée Belge d’Isocinétisme (2001, February)

Detailed reference viewed: 2 (0 ULg)
See detailEvaluation isocinétique des patients gonarthrosiques et coxarthrosiques
Henrotin, Yves ULg; Croisier, Jean-Louis ULg; Etienne, L. et al

in Actes de la 3ème Journée Belge d’Isocinétisme (2001, February)

Detailed reference viewed: 11 (0 ULg)
See detailIsocinétisme et conflit sous-acromio-coracoïdien
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Huskin, Jean-Pierre ULg et al

in Actes de la 3ème Journée Belge d’Isocinétisme (2001, February)

Detailed reference viewed: 25 (2 ULg)
See detailExploration isocinétique de la fibromyalgie
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Renard, Cindy ULg et al

in Actes de la 3ème Journée Belge d’Isocinétisme (2001, February)

Detailed reference viewed: 32 (1 ULg)
See detailExploration isocinétique du patient BPCO
Croisier, Jean-Louis ULg; Georis, P.; Hac, S. et al

in Actes de la 3ème Journée Belge d’Isocinétisme (2001, February)

Detailed reference viewed: 42 (1 ULg)
Full Text
See detailEvolution du conseil de fumure azotée du froment d'hiver
Bodson, Bernard ULg; Herman, Jean-Luc; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux (2001, February)

Detailed reference viewed: 4 (0 ULg)
Full Text
See detailFongicides en froment: 2000, une année très septoriose
Moreau, Jean-Marc; Bodson, Bernard ULg; Meeùs, Patrick et al

in Livre Blanc: Céréales - Gembloux (2001, February)

Detailed reference viewed: 8 (1 ULg)
Full Text
See detailFongicides en escourgeon: Aperçu des résultats de la campagne 2000: De la rhynchosporiose aux symptômes "peau de guépard"
Moreau, Jean-Marc; Bodson, Bernard ULg; Meeùs, Patrick et al

in Livre Blanc: Céréales - Gembloux (2001, February)

Detailed reference viewed: 9 (0 ULg)
Full Text
See detailL'azote minéral du sol en 2000-2001 sous froment d'hiver
Herman, Jean-Luc; Destain, Jean-Pierre ULg; Goffart, Jean-Pierre et al

in Livre Blanc: Céréales - Gembloux (2001, February)

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailÜberblick über die Weiterbildung- und Dchulungsmethoden von Stahlbau.- Verbundbaukonstruktionen sowie EC3, EC4.
Jaspart, Jean-Pierre ULg; Couchman, G.

in Proceedings du Seminaire "Eurocodes im Bauwesen: Status, Lehrprogramme, Hilfsmittel zur Schulung" (2001, January 26)

Detailed reference viewed: 20 (0 ULg)
See detailDeconvolving Spectra: Near-IR Spectroscopy of the Lens and Source in HE 1104-1805
Courbin, F.; Lidman, C.; Meylan, G. et al

in Brainerd, T. G.; Kochanek, C. S. (Eds.) Gravitational Lensing: Recent Progress and Future Go (2001, January 01)

Not Available

Detailed reference viewed: 11 (1 ULg)
Full Text
See detailEcohydrodynamics related to the Calvi canyon (Corsica): a numerical study
Skliris, Nikos; Goffart, Anne ULg; Hecq, Jean-Henri ULg et al

in Proceedings of the 36th CIESM Congress (2001)

A 3-D, high resolution model is used to investigate the impact of the Calvi canyon on the ecohydrodynamics in early spring conditions. Numerical runs are performed to simulate the nitrate distribution ... [more ▼]

A 3-D, high resolution model is used to investigate the impact of the Calvi canyon on the ecohydrodynamics in early spring conditions. Numerical runs are performed to simulate the nitrate distribution. Results show that the canyon topography generates high downwelling (upwelling) in the western (eastern) part of the canyon. Downwelling is larger than upwelling within the canyon leading to a net downward nitrate transport there, while upstream and downstream of the canyon there are regions of upwelled water richer in nitrate. Simulations are performed for NE, upwelling favorable, wind conditions where data of nitrate concentration are available for model validation. [less ▲]

Detailed reference viewed: 79 (35 ULg)
See detailEnseignement de l’histoire et enracinement wallon
Jadoulle, Jean-Louis ULg

in L. COURTOIS et M.-D. ZACHARY (Ed.) Enseigner la Wallonie et l’Europe. Pour une éducation citoyenne (2001)

Detailed reference viewed: 22 (2 ULg)
Peer Reviewed
See detailMicro-mechanical analysis of steel sheet behaviour during deep-drawing
Duchene, Laurent ULg; Godinas, A.; Habraken, Anne ULg et al

in Proceedings of the First Asian-Pacific Congress on Computational Mechanics: APCOM 2001 (2001)

Detailed reference viewed: 21 (5 ULg)
Full Text
Peer Reviewed
See detailChorioví gonadotropin a specifický glykoprotein u březích přežvýkavcŭ
Melo de Sousa, Noelita ULg; Figueiredo, J. R.; El Amiri, Bouchra et al

in Proceedings of the 3rd Central European Buiatric Congress (2001)

Detailed reference viewed: 33 (0 ULg)
Peer Reviewed
See detailExpression of c-inhibitor of apoptosis protein-2 in the sputum from asthmatic patients
Bureau, Fabrice ULg; Seumois, G.; Jaspar, F. et al

in Proceedings : 11th European Respiratory Society Annual Congress, Eur. Respir. J., 2001, 18 (Suppl. 33) (2001)

Detailed reference viewed: 19 (3 ULg)
See detailPeculiar characteristics of familial GH-secreting pituitary adenomas
Jaffrain-Réa, M. L.; Ferretti, E.; Durante, C. et al

in 5th European Congress of Endocrinology - Abstract book (2001)

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailImproved management practices to increase productivity of traditional cereal/pigeonpea intercropping systems in Eastern Africa.
Mergeai, Guy ULg; Silim, S. N.; Baudoin, Jean-Pierre ULg

in Status and potential of pigeonpea in eastern and southern Africa.Proceedings of a regional workshop, Nairobi, Kenya, 12-15 September 2000 (2001)

Detailed reference viewed: 20 (13 ULg)
Full Text
Peer Reviewed
See detailWater management of large dams
Mouzelard, Thibaut; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in International Symposium on Environmental Hydraulics (2001)

Detailed reference viewed: 13 (1 ULg)
Peer Reviewed
See detailQuantification of cardiac IGF-1 expression by the real-time taqman PCR : development and first application in a canine model of congestive heart failure
Motte, S.; Van Beneden, R.; Mottet, J. et al

in 11th ESVIM Meeting - Dublin - Irlande - 2001 (2001)

Detailed reference viewed: 6 (0 ULg)
Peer Reviewed
See detailSimulation numérique des écoulements hydrologiques : les modèles physiquement basés FAITOU
Pirotton, Michel ULg

in Génération et transfert des crues extrêmes (2001)

Detailed reference viewed: 5 (1 ULg)
Full Text
Peer Reviewed
See detailAbility of three different antisera to recognize pregnancy-associated glycoproteins in heifers during the first fifty days of gestation
Perenyi, Zsolt; Desbuleux, Henri; Sulon, Joseph ULg et al

in Proceedings: 17th Annual Meeting AETE (2001)

Detailed reference viewed: 20 (1 ULg)
Full Text
Peer Reviewed
See detailCulture of very young Phaseolus vulgaris L. pods and plantlet regeneration.
Geerts, P.; Toussaint, André ULg; Mergeai, Guy ULg et al

in Acta Horticulture 560 : Proceedings of the Fourth International Symposium on In Vitro Cultureand Horticultural Breeding (2001)

Detailed reference viewed: 11 (6 ULg)
Peer Reviewed
See detailObservations relatives aux pigments bleus chez Henri Bles
Allart, Dominique ULg; Oger, Cécile; Denoël, Sophie

in A joint meeting of ICOM-CC Working Groups Paintings 1&2 and The Paintings Section, UKIC, London, British Museum, 10-11 September 2001. Extended Abstracts of presentations (2001)

Detailed reference viewed: 15 (3 ULg)
See detailMetamorphosis of acromegaly to a non-functioning pituitary adenoma
Valdes Socin, Hernan Gonzalo ULg; Stevenaert, Achille ULg; Legros, Jean-Jacques ULg et al

in 5th European Congress of Endocrinology - Abstract book (2001)

Detailed reference viewed: 6 (2 ULg)
Full Text
Peer Reviewed
See detailPhysical education teachers’ perception of pupils’ motivation.
Cloes, Marc ULg; Ledent, Maryse; Delfosse, Catherine et al

in Chin, M. K.; Hensley, M. D.; Liu, Y. K. (Eds.) Innovation and application of physical education and sports science in the new millennium - An Asia-Pacific Perspective (2001)

Motivational aspects play a particularly important role in teaching. They are considered a powerful mediator between teacher action and teaching effects. Pupils’ motivation towards school and physical ... [more ▼]

Motivational aspects play a particularly important role in teaching. They are considered a powerful mediator between teacher action and teaching effects. Pupils’ motivation towards school and physical education has already been analysed from the pupils’ point of view (Piéron, Ledent, Almond, Airstone and Newsburry, 1996). On another side, its perception by teachers is less documented. This study focused on the identification by PE teachers of pupils’ behaviours indicating that they were motivated or not. Moreover, perception of reasons related to lack of motivation in pupils was also investigated. Twenty-nine teachers fulfilled a questionnaire during an inservice preparation seminar. Their answers were analysed and inductively classified in categories. Thirteen categories of criteria showing the presence or lack of motivation were identified. Motivation was predominantly perceived by (1) the quality of the working climate (16.8%); (2) the intend to be involved in the PE lesson (14%); (3) positive reactions towards the subject matter (11.2%) and an efficient time management (11.2%). The most important categories related to lack of motivation were: (1) absences or excuses (20.2%); (2) low time on task (14%) and (3) negative reactions towards the subject matter (14%). Concerning origins of the lack of motivation, teachers emphasised: (1) the large differences between pupils (13.7%); the lack of sport culture of youth (10.5%) and (3) the negative pupils’ attitude towards school. [less ▲]

Detailed reference viewed: 161 (3 ULg)
Full Text
See detailSurveys with the 4-m International Liquid Mirror Telescope Project (ILMT) (poster)
Poels, Joël ULg; Moreau, O.; Manfroid, Jean ULg et al

in Banday, A. J.; Zaroubi, S.; Bartelmann, M. (Eds.) Astronomical Data Analysis Software and Systems X (2001)

The working principle of liquid mirror telescopes (LMTs) is first reviewed along with their advantages and disadvantages over classical telescopes. For several reasons (access to regions near the south ... [more ▼]

The working principle of liquid mirror telescopes (LMTs) is first reviewed along with their advantages and disadvantages over classical telescopes. For several reasons (access to regions near the south galactic pole, galactic center, good image quality, etc.), an excellent site for such an LMT is the Atacama desert. A deep (B~24 mag) LMT survey at latitudes near -22deg -- -29deg will cover ~90 square degrees at high galactic latitude and be especially useful for gravitational lensing studies, for the identification of various classes of interesting extragalactic objects (cf. clusters, supernovae, etc. at high redshift) and for subsequent follow-up observations with 8 m-class telescopes. A short description of the handling of data products is also presented. [less ▲]

Detailed reference viewed: 43 (14 ULg)
Full Text
Peer Reviewed
See detailPotential of short- and medium-duration pigeonpea as components of a cereal intercrop.
Smith, C; Baudoin, Jean-Pierre ULg; Mergeai, Guy ULg

in Proceedings Regional Workshop on Status and Potential of Pigeonpea in Eastern and Southern Africa (2001)

Detailed reference viewed: 4 (1 ULg)
Peer Reviewed
See detailMucociliary function testing in dogs.
Peeters, Dominique ULg; Clercx, Cécile ULg; Mc Entee, Kathleen ULg et al

in Proceedings of the 11th Annual Congress of the ESVIM (2001)

Detailed reference viewed: 4 (1 ULg)
Full Text
See detailLes interventions d'individualisation des enseignants en éducation physique et leur perception par les élèves
Cloes, Marc ULg; Pirottin, Véronique; Ledent, Maryse et al

in IUFM De Nice (Ed.) Recherche sur l'intervention en EPS et en sport. Actes du colloque (2001)

L'épanouissement individuel de chaque élève constitue une des priorités de la mission éducative de l'école. Les programmes scolaires et les directives pédagogiques propres aux différentes disciplines ... [more ▼]

L'épanouissement individuel de chaque élève constitue une des priorités de la mission éducative de l'école. Les programmes scolaires et les directives pédagogiques propres aux différentes disciplines placent ainsi l'accent sur la prise en compte des caractéristiques personnelles de tous les apprenants. Les autorités en charge de l'Education ont ainsi suivi les recommandations de nombreux chrecheurs en pédagogie. ... [less ▲]

Detailed reference viewed: 96 (3 ULg)
Full Text
Peer Reviewed
See detailApplication du cycle gestion qualité SMART des tests pédagogiques au cours d'obstétrique et pathologie de la reproduction des ruminants, équidés et porcs
Castaigne, Jean-Loup ULg; Gilles, Jean-Luc ULg; Hanzen, Christian ULg

in Actes du 18e congrès de l'AIPU : Les stratégies de réussite dans l'enseignement supérieur (2001)

Suite aux résultats de l’évaluation de l’enseignement réalisée auprès des étudiants de 2ième doctorat durant l’année académique 1999-2000, nous avons décidé de mettre en place de nouvelles stratégies de ... [more ▼]

Suite aux résultats de l’évaluation de l’enseignement réalisée auprès des étudiants de 2ième doctorat durant l’année académique 1999-2000, nous avons décidé de mettre en place de nouvelles stratégies de formation et d’évaluation. La méthode des LQRT4-SAFE5 (Leclercq et al., 1993 et 1998) a été choisie pour dispenser 5 cours portant sur des matières dont la compréhension est capitale pour la réussite de l’examen du professeur Hanzen. Chaque test a été réalisé selon les principes définis par le Système Méthodologique d’Aide à la Réalisation de Tests (S.M.A.R.T.) dans leur cycle de gestion qualité des évaluations standardisées. Chaque test est découpé en 8 étapes clefs telles que définies par Gilles et Leclercq (1995). Des boucles de régulation courtes et longues assurent un maintien de la qualité par rapport aux objectifs d’évaluation définis par l’enseignant. [less ▲]

Detailed reference viewed: 147 (9 ULg)
Full Text
Peer Reviewed
See detailBlack Grouse conservation: a case study in Belgium
RUWET, Jean-Claude; CHARLET, Olivier; Houbart, Servais et al

in Tack, J.; Branquart, Etienne (Eds.) D23 Report on 'Scientific tools in support to the management and restoration of European Habitats' - Proceedings of the meeting (2001)

Detailed reference viewed: 7 (0 ULg)
Peer Reviewed
See detailJapanese Agriculture : problems and policy
Burny, Philippe ULg

in Association Belge d‟Economie Rurale (Ed.) Cinquième Workshop pour Economistes Agricoles : proceedings (2001)

Detailed reference viewed: 3 (2 ULg)
Peer Reviewed
See detailInvestigation of defect levels in Mg-doped GaN Schottky structures by thermal admittance spectroscopy
Nguyen, Ngoc Duy ULg; Germain, Marianne; Schmeits, Marcel et al

in Ponce, Fernando; Bell, Abigail (Eds.) ICNS-4: Proceedings of The Fourth International Conference on Nitride Semiconductors (2001)

Detailed reference viewed: 13 (0 ULg)
Full Text
See detailOn-Line Validation of Measurements on Jet Engines Using Automatic Learning Methods
Dewallef, Pierre ULg; Léonard, Olivier ULg

in Proceedings od the 15th ISABE Conference (2001)

Nowadays, turbine engine tests are processed using an open loop, i.e. the measurements are verified and treated a posteriori, sometimes weeks or months after the end of the test. The purpose of the ... [more ▼]

Nowadays, turbine engine tests are processed using an open loop, i.e. the measurements are verified and treated a posteriori, sometimes weeks or months after the end of the test. The purpose of the present project is to develop a new methodology which enables real time detection of faulty measurements and the suppression of the source of these faults during the test. The validation of the measurements is achieved by a “robust” parameter identification [1]. Such a method is called robust in the sense that it can cope with 20 to 30% of faulty measurements. The robustness is insured by a distribution of the measurement noise, as introduced by Huber [7, 8], that takes into account the possibility of faults. The purpose of a parameter identification is to find the set of parameters which has most likely generated the measurements observed on the process. This leads to an optimisation problem that has to be solved for the parameters. The measurements are linked to the parameters through a non-linear model, leading to a large system of equations for modern jet engines. If no physical model of the process can be made available or if this model is too complex to allow real time validation, automatic learning methods may provide a solution: • either a mathematical representation is generated, directly based on the measurements (online learning), • or a database is first generated, based on the existing (but expensive) physical model, the database being subsequently used to build a statistical model (off-line learning). Neural networks seem to be very suitable for modeling the behavior of turbojets, avoiding the resolution of a time-consuming non-linear system. In this paper neural networks are tested to generate a mathematical representation of a single flow, single spool and variable geometry nozzle turbojet, from a data base of “measurements” generated by a physical model of the engine. Only the off-line learning approach is considered. [less ▲]

Detailed reference viewed: 27 (2 ULg)
Full Text
Peer Reviewed
See detailLes attentes des consommateurs, des nouveaux critères de sélection porcine
Leroy, Pascal ULg; Verleyen, Vincent ULg; Beduin, J.-M. et al

in Carrefour des productions animales, Gembloux 2001 (2001)

Detailed reference viewed: 18 (5 ULg)
Full Text
Peer Reviewed
See detailOn Output feedback Nonlinear Model Predictive Control using high gain observers for a class of systems
Imsland, L.; Findeisen, R.; Bullinger, Eric ULg et al

in Proc. 6th IFAC Symposium on Dynamics and Control of Process Systems, DYCOPS-6 (2001)

Detailed reference viewed: 5 (0 ULg)
Full Text
See detailMultispectral Imaging in Cathodoluminescence Microscopy
Charlier, Bernard ULg; De Colnet, Laurence; Pirard, Eric ULg

in Proceedings - Annual Meeting - Belgian Soc. Microscopy (2001)

Detailed reference viewed: 21 (4 ULg)
Peer Reviewed
See detailA comparison of the Fe II spectrum of three B[e] stars : HD51585, HD45677 and HD50138
Houziaux, L; Quinet, Pascal ULg

in Eta Carinae and Other Mysterious Stars. The Hidden Opportunities of Emission Spectroscopy (2001)

Detailed reference viewed: 20 (2 ULg)
Full Text
Peer Reviewed
See detailPattern extraction for time-series classification
Geurts, Pierre ULg

in Proceedings of PKDD 2001, 5th European Conference on Principles of Data Mining and Knowledge Discovery (2001)

In this paper, we propose some new tools to allow machine learning classifiers to cope with time series data. We first argue that many time-series classification problems can be solved by detecting and ... [more ▼]

In this paper, we propose some new tools to allow machine learning classifiers to cope with time series data. We first argue that many time-series classification problems can be solved by detecting and combining local properties or patterns in time series. Then, a technique is proposed to find patterns which are useful for classification. These patterns are combined to build interpretable classification rules. Experiments, carried out on several artificial and real problems, highlight the interest of the approach both in terms of interpretability and accuracy of the induced classifiers. [less ▲]

Detailed reference viewed: 104 (2 ULg)