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See detailNew descriptor for skeletons of planar shapes : the Calypter
Pirard, Eric ULg; Nivart, Jean-François

(1994)

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See detailNew design antenna Gsm900/1800/Umts for sensor networks on High voltage line
Adegbola, Kayode Romaric Adebiyi ULg; Hajraoui

in Congrès méditerranéen des Télécommunications: CMT, Fès 22-24 Mars 2012 (2012, March 24)

Detailed reference viewed: 47 (27 ULg)
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See detailA new design model for the resistance of steel semi-compact cross-sections
Boissonnade, N.; Jaspart, Jean-Pierre ULg; Oerder, R. et al

in Proceedings of EUROSTEEL 2008 (2008)

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See detailA New Design of Equilibrator to Monitor Carbon Dioxide in Highly Dynamic and Turbid Environments
Frankignoulle, M.; Borges, Alberto ULg; Biondo, Renzo ULg

in Water Research (2001), 35(5), 1344-7

A new design of equilibrator for carbon dioxide monitoring in natural waters is described. It consists in a vertical tube filled with marbles through which water is flowing while equilibrating with a ... [more ▼]

A new design of equilibrator for carbon dioxide monitoring in natural waters is described. It consists in a vertical tube filled with marbles through which water is flowing while equilibrating with a closed air circuit. It offers several advantages compared with classical equilibrators, among which is a fast response time (half-life constant approximately 30 s) and the potential to work in very turbid water. The proposed equilibrator is of particular interest to monitor carbon dioxide in coastal ecosystems, such as estuaries, which are known to be turbid and highly dynamic. Two performance tests and some field results are presented to illustrate the efficiency of the proposed system. [less ▲]

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See detailNew Development in Calculation Methods, in Basic Characteristics of low-cost houses in order to reduce the energy consumption for heating - Link programme - Coordination and consequences for the architectural design (synthesis)
Dupagne, Albert ULg; Hauglustaine, Jean-Marie ULg; Knowland, J. B. et al

Report (1984)

A previous research work developed within the frame of the first European R-D Energy Programme has led to the production of a manual design method mainly oriented to the design of low cost, low energy ... [more ▼]

A previous research work developed within the frame of the first European R-D Energy Programme has led to the production of a manual design method mainly oriented to the design of low cost, low energy houses. From the beginning, we know that this method remains uncompleted but its lacunas became particulary obvious and combersome when trying to apply it to the real design of 25 houses on a real ground. Therefore we devoted some research efforts to improve the manual method specially in calculation methods. These efforts do not intend to be definite answers to the difficult points we put in light. Some are a first proposal for solving specific problems like intergrating dynamic-thermal behaviour in the design of buildings. Others are particular issues of a continuous work developed in the Building Physics Laboratory for years like equivalent degree-day methods. The last group contents more specific points like shading factor calculation. Some has already been introduced in the new issue of the design methodology. Others have been used during the design of the houses but they need more work to become practical tools that can be introduced in the methodology. And some are kept for further development. In appearance, the present book is just the gathering of disjoined chapters, but the work is not as incoherent as it seems. All the methods have at least one thing in common: the desing orientation of their use. [less ▲]

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See detailNew developments for an efficient solution of the discrete material topology optimization of composite structures
Duysinx, Pierre ULg; Gao, Tong; Zhang, Weihong et al

in Faester, S.; Juul Jensen, D.; Ralph, B. (Eds.) et al Composite materials for structural performance: towards the higher limits (2011, September 05)

Optimal design of composite structures can be formulated as an optimal selection of material in a list of different laminates. Based on the seminal work by Stegmann and Lund (2005), the optimal problem ... [more ▼]

Optimal design of composite structures can be formulated as an optimal selection of material in a list of different laminates. Based on the seminal work by Stegmann and Lund (2005), the optimal problem can be stated as a topology optimization problem with multiple materials. The research work carries out a large investigation of different interpolation and penalization schemes for the optimal material selection problem. Besides the classical Design Material Optimization (DMO) scheme and the recent Shape Function with Penalization (SFP) scheme by Bruyneel (2011), the research introduces a generalization of the SFP approach using a bi-value coding parameterization (BCP) (Gao, Zhang, and Duysinx, 2011) The paper provides a comparison of the different parameterization approaches. It also proposes alternative penalization schemes and it investigates the effect of the power penalization. Finally, we discuss the solution aspects in the perspective of solving large-scale industrial applications. The conclusions are illustrated by a numerical application for the compliance maximization of an in-plane composite ply. [less ▲]

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See detailNew developments in artificially layered ferroelectric oxide superlattices
Dawber, Matthew; Bousquet, Eric ULg

in MRS Bulletin (2013), 38

Artifi cially layered superlattices of oxide materials have been intensely investigated for some time, but continue to reveal new potential as a route to advanced functional materials. As well as ... [more ▼]

Artifi cially layered superlattices of oxide materials have been intensely investigated for some time, but continue to reveal new potential as a route to advanced functional materials. As well as considering electrostatics and strain, a more complete picture of the interfaces in these systems also needs to incorporate the possibility of additional structural distortions, electronic redistributions, and complex polarization domain structures. Here we focus on superlattices composed of two perovskite oxide materials, where one is a ferroelectric, and discuss the important interactions between the component materials that determine the behavior of the new artifi cial material. We discuss interfaces both with and without electronic screening. The fi rst class of interface contains technologically relevant ultrathin ferroelectric capacitors and the more recently studied ferroelectric-metal superlattices. In these systems, the infl uence of the ferroelectric polarization decreases rapidly with distance from the interface. By contrast, in systems where the materials adjacent to the ferroelectric layers are dielectrics, the polarization of the ferroelectric layer infl uences the properties of the adjacent layers over a much longer distance, setting the stage for fascinating competition between the properties of the combined materials. [less ▲]

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See detailNew developments in behavioral research : theory, method and application (compte-rendu)
Richelle, Marc ULg

in Behavioral Processes (1981), 6(2), 203-204

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See detailNew developments in Belgian childcare policy and practice
Vandenbroeck, M.; Pirard, Florence ULg; Peeters, J.

in European Early Childhood Education Research Journal (2009), 17(3), 408-416

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See detailNew developments in benzopyran derivatives as pancreatic β-cell KATP channel openers
Florence, X.; De Tullio, Pascal ULg; Lebrun, P. et al

Poster (2006, November 18)

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See detailNew developments in electrografting of thin polymer films
Jérôme, Christine ULg

Conference (2006, June)

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See detailNew Developments in Handling Stress Constraints in Optimal Material Distributions
Duysinx, Pierre ULg; Sigmund, Ole

in Proceedings of 7th AIAA/USAF/NASA/ISSMO symposium on Multidisciplinary Design Optimization (1998)

There is a general interest to consider stress constraints in topology optimization of continuum structures. By their very nature stress constraints are local constraints which result in large scale ... [more ▼]

There is a general interest to consider stress constraints in topology optimization of continuum structures. By their very nature stress constraints are local constraints which result in large scale optimization problems that are often expensive to solve. Here in order to reduce the computing the effort we explore an alternative technique based on equivalent global (that is integrated) constraints. We define two global stress constraints based on the p-norm and p-mean of the epsilon-relaxed overall stress criteria in the finite elements. We present a new formulation of the epsilon-relaxation technique which is better suited to topology optimization of continuum structures and which makes the relaxation process automatic. The "p-mean" and "p-norm" functions bound by lower and upper value the maximum value of the epsilon-relaxed overall stress criterion. Based on numerical experiments this study compares the global and the local constraint formulations. Even if the use of integrated constraints leads a reduction of the computing time by one or two orders of magnitude, they definitely give a weaker control of local stress level. This sometimes can lead to solutions that are a bit different. [less ▲]

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See detailNew developments in medical imaging applied to Neurosurgery
Martin, Didier ULg

Scientific conference (2010, January 20)

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See detailNew developments in quantitative analysis and trace analysis in pharmaceutical matrices by FTIR
Otte, Xavier; Duvivier, France; Evrard, Brigitte ULg et al

in Proceedings de la journée de rencontre des jeunes chimistes mars 1998 (1998)

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See detailNew developments in SAFIR 2013 - New concrete models
Gernay, Thomas ULg

Scientific conference (2012, November 29)

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See detailNew developments in the application of automatic learning to power system control
Wehenkel, Louis ULg; Glavic, Mevludin; Ernst, Damien ULg

in Proceedings of the 15th Power System Computation Conference (PSCC 2005) (2005)

In this paper we present the basic principles of supervised learning and reinforcement learning as two complementary frameworks to design control laws or decision policies within the context of power ... [more ▼]

In this paper we present the basic principles of supervised learning and reinforcement learning as two complementary frameworks to design control laws or decision policies within the context of power system control. We also review recent developments in the realm of automatic learning methods and discuss their applicability to power system decision and control problems. Simulation results illustrating the potentials of the recently introduced fitted Q iteration learning algorithm in controlling a TCSC device aimed to damp electro-mechanical oscillations in a synthetic 4-machine system, are included in the paper. [less ▲]

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See detailNew developments in the functionalization of aliphatic polyesters by "click" copper-catalyzed azide-alkyne cycloaddition
Lecomte, Philippe ULg; Riva, Raphaël ULg; Schmeits, Stephanie ULg et al

Conference (2009, June 03)

Nowadays, biodegradable and biocompatible aliphatic polyesters are widely used as environmentally friendly thermoplastics and biomaterials. Nevertheless, the absence of any pendant functional group is a ... [more ▼]

Nowadays, biodegradable and biocompatible aliphatic polyesters are widely used as environmentally friendly thermoplastics and biomaterials. Nevertheless, the absence of any pendant functional group is a severe limitation for the development of novel applications. Our strategy aiming at functionalizing aliphatic polyesters relies on the “click” copper-catalyzed cycloaddition (CuAAC) of alkynes duly substituted by functional groups or even chains onto PCL bearing pendant azides. The aliphatic polyesters bearing pendant azides have been very efficiently synthesized by a straightforward approach, which relies on the ring-opening copolymerization of αClεCL (or γBrεCL) and εCL (or lactide) followed by reaction with sodium azide to convert pendant chlorides or bromides into azides. The alternative reported by Emrick et al. is based on the CuAAC reaction of azides substituted by any functional group onto copolyesters of poly(ε-caprolactone) bearing pendant alkynes. Interestingly enough, Emrick et al. carried out the CuAAc reaction in water at 80°C. Unfortunately, it turned out, at least in our hands, that these conditions can not be extended to the derivatization of more sensitive aliphatic polyesters because degradation was then unavoidable. Nevertheless, we found out that degradation can be minimized whenever the CuAAC reaction is carried out in an organic solvent at lower temperature. Typically, the CuAAC reaction was carried out in DMF or THF at 35°C. Recently, it was shown that supercritical carbon dioxide can be used as a more environmentally friendly solvent than DMF or THF. The contamination by catalytic residues of aliphatic polyesters functionalized by the CuAAC reaction is a severe limitation in view of future applications, especially in the biomedical field. In the last part of this talk, a special attention will be paid on our current efforts to get rid of copper residues. [less ▲]

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See detailNew developments in the management of osteoporosis.
Reginster, Jean-Yves ULg

in Climacteric : The Journal of the International Menopause Society (2008), 11(S2), 30

Detailed reference viewed: 13 (4 ULg)