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See detailThe Implications of European Union for the Performance of Public Enterprises
Gathon, Henry-Jean ULg; Pestieau, Pierre ULg

in Administration : Journal of the Institute of Public Administration of Ireland (1993), 41(Summer), 149-165

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See detailImplications of finite one-loop corrections for seesaw neutrino masses
Aristizabal Sierra, Diego ULg

in Journal of Physics: Conference Series (2012)

In the standard seesaw model, finite corrections to the neutrino mass matrix arise from one-loop self-energy diagrams mediated by a heavy neutrino. We discuss the impact that these corrections may have on ... [more ▼]

In the standard seesaw model, finite corrections to the neutrino mass matrix arise from one-loop self-energy diagrams mediated by a heavy neutrino. We discuss the impact that these corrections may have on the different low-energy neutrino observables paying special attention to their dependence with the seesaw model parameters. It is shown that sizable deviations from the tri-bimaximal mixing pattern can be obtained when these corrections are taken into account. [less ▲]

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See detailImplications of Flavor Dynamics for Fermion Triplet Leptogenesis
Aristizabal Sierra, Diego ULg; Jernej Kamenik; Miha Nemevsek

in Journal of High Energy Physics [=JHEP] (2010), 2010(10),

We analyze the importance of flavor effects in models in which leptogenesis proceeds via the decay of Majorana electroweak triplets. We find that depending on the relative strengths of gauge and Yukawa ... [more ▼]

We analyze the importance of flavor effects in models in which leptogenesis proceeds via the decay of Majorana electroweak triplets. We find that depending on the relative strengths of gauge and Yukawa reactions the B − L asymmetry can be sizably enhanced, exceeding in some cases an order of magnitude level. We also discuss the impact that such effects can have for TeV-scale triplets showing that as long as the B − L asymmetry is produced by the dynamics of the lightest such triplet they are negligible, but open the possibility for scenarios in which the asymmetry is generated above the TeV scale by heavier states, possibly surviving the TeV triplet related washouts. We investigate these cases and discuss how they can be disentangled by using Majorana triplet collider observables and, in the case of minimal type III see-saw models even through lepton flavor violation observables. [less ▲]

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See detailThe implications of internationalisation on the management process of the Small or Medium-Sized Enterprise
Van Caillie, Didier ULg

in CEFIP-KEFIK (Ed.) The internationalisation of SMEs (still to be confirmed) (2012)

In the economic, political, social and financial context that has been a feature of the early 21st century, factors such as the deregulation of markets and commercial practices and the growing ... [more ▼]

In the economic, political, social and financial context that has been a feature of the early 21st century, factors such as the deregulation of markets and commercial practices and the growing interconnection of markets have resulted, virtually inevitably, with Small and Medium-Sized Enterprises having to get to grips with the phenomenon of internationalisation. This challenge is having inescapable consequences on the organisation and day-to-day operation of SMEs, forcing them in particular to make their management practices more professional, especially in terms of implementing systematic control procedures into their activities. SMEs have also had effectively to introduce a multicultural dimension linked closely to the internationalisation of their business to their management practices and processes, and to their way of making strategic choices. These changes are having an effect on the tools, rules, lines of conduct, internal directives, informal practices, etc. that together make up the system of processes deployed by SME managers to enable their companies to be managed with regular and recurrent performance in mind. This is characterised in particular by the fact that they need to be capable of achieving the financial, manufacturing and employment-related objectives that they set themselves. The aim of this contribution is to identify, through a structured framework of analysis, what the implications are that internationalisation may have on the system of processes within SMEs that are performing well. It is based on a summary of the elements highlighted in the specialist scientific and business literature devoted to the impact of internationalisation in the context of an SME. It is structured and uses the modelling of the (non-)performance of the SME proposed by Crutzen and Van Caillie (2009) as its organisational framework [less ▲]

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See detailImplications of microbial phenotypic heterogeneity in large-scale bioprocessing conditions
Delvigne, Frank ULg; Gorret, Nathalie; Molina-Jouve, Carole et al

Conference (2014, September)

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See detailImplications of reactivations and transmission of VZV infection
Rentier, Bernard ULg

Conference (1995)

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See detailImplications of the adoption of a concept-based approach to instructional design
Verpoorten, Dominique ULg

Report (2011)

This document reports on an attempt to import a traditional distance course in a tool conceived to support a concept mapping procedure intended to facilitate, in a second phase, the implementation of ... [more ▼]

This document reports on an attempt to import a traditional distance course in a tool conceived to support a concept mapping procedure intended to facilitate, in a second phase, the implementation of adaptive rules and personal learning paths. This article does not ascertain the value of this approach per se (for those interested, see some reflection on this topic in Appendix 1). It just aims at sketching the time needed for such a work and to document encountered difficulties. The article resolutely takes the viewpoint of an average instructor. [less ▲]

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See detailImplications of thermal sensitivity of the static internal friction angle
Hueckel, Tomasz; François, Bertrand ULg; Laloui, Lyesse

in 1st International Symposium on Computational Geomechanics (ComGeo I) (2009)

Thermal variability of the coefficient of the critical state, or the angle of internal friction is examined in view of experimental results obtained for clays and hard rocks. This sensitivity has several ... [more ▼]

Thermal variability of the coefficient of the critical state, or the angle of internal friction is examined in view of experimental results obtained for clays and hard rocks. This sensitivity has several implications for the evolution of what is considered as apparent preconsolidation pressure in constant stress heating tests. Failure conditions in soils at elevated temperatures appear to be strongly dependent on the history of application of stress and temperature, and hence are affected by the thermal sensitivity of the internal friction angle. Consequences to ranges of admissible processes are discussed. [less ▲]

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See detailImplications of tribimaximal lepton mixing for leptogenesis
Aristizabal Sierra, Diego ULg

Conference (2011, July)

In models featuring exact mixing patterns the mass matrices that define the effective light neutrino mass matrix -and the light neutrino matrix itself- are form-diagonalizable. We study leptogenesis in ... [more ▼]

In models featuring exact mixing patterns the mass matrices that define the effective light neutrino mass matrix -and the light neutrino matrix itself- are form-diagonalizable. We study leptogenesis in type I seesaw models in these contexts pointing out that the CP asymmetry in right-handed neutrino decays vanishes as a consequence of the mass matrices being form-diagonalizable. A non-vanishing CP asymmetry arises once deviations from the exact mixing scheme, induced by higher order effective operators, is allowed. Finally we discuss alternative pathways to viable leptogenesis in these kind of models. [less ▲]

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See detailImplications pathologiques du systeme neuroendocrinien digestif
Piette, Caroline ULg; Polus, Marc ULg; Louis, Edouard ULg

in Revue Médicale de Liège (2002), 57(8), 509-18

The neuroendocrine system is made of endocrine cells disseminated in various organs. In this article, we will focus on the implication of the neuroendocrine system in digestive pathology. First of all, we ... [more ▼]

The neuroendocrine system is made of endocrine cells disseminated in various organs. In this article, we will focus on the implication of the neuroendocrine system in digestive pathology. First of all, we will review the neuroendocrine tumors in every location and then describe their classification, epidemiology, symptomatology, diagnosis and treatment. Finally, we will consider the implications of the neuroendocrine system in the inflammatory and functional pathology of the digestive tract. [less ▲]

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See detailImplications pour la communauté d'un meilleur contrôle de la pression artérielle
Krzesinski, Jean-Marie ULg

in Journal de Cardiologie [= JDC] = Tijdschrift voor Cardiologie [= TVC] (2002), 14(5), 186-190

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See detailImplications psychosociales des variations de l’âge au développement pubertaire
Glowacz, Fabienne ULg; Domine, Françoise ULg; Ledent, Annick et al

in Revue du Praticien (2008), 58

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See detailImplications virales dans l'etiopathogenie du diabete de type 1: donnees actuelles.
Radermecker, Régis ULg; Scheen, André ULg; Letiexhe, Michel ULg et al

in Revue Médicale de Liège (1998), 53(10), 597-602

Type 1 diabetes mellitus results from autoimmune destruction of pancreatic beta cells. After having described genetic, immunological and metabolic factors, some researchers have hypothezised that ... [more ▼]

Type 1 diabetes mellitus results from autoimmune destruction of pancreatic beta cells. After having described genetic, immunological and metabolic factors, some researchers have hypothezised that environmental factors might trigger the autoimmune process. Based on epidemiological, anatomoclinical and animal studies, they suggest a role for virus infections. [less ▲]

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See detailImplicit 2D Numerical Simulation of Materials Submitetd to High Strain Rates including Fracture
Jeunechamps, Pierre-Paul; Ponthot, Jean-Philippe ULg

in Key Engineering Materials [=KEM] (2013), 535-536

In this paper, we present a general consistent numerical formulation able to take into account strain rate and thermal effects of the material behavior. A thermomechanical implicit approach for element ... [more ▼]

In this paper, we present a general consistent numerical formulation able to take into account strain rate and thermal effects of the material behavior. A thermomechanical implicit approach for element erosion to model material failure is also presented. The numerical model will be illustrated by applications both from the metal forming and the impact domain. All these physical phenomena have been included in an implicit dynamic oriented object finite element code (implemented at LTAS-MN²L, University of Liège, Belgium) named Metafor [less ▲]

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See detailImplicit 2D numerical simulation of materials submitted to high strain rate including failure
Jeunechamps, Pierre-Paul ULg; Ponthot, Jean-Philippe ULg

in Proceedings of DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (2009, September)

In this paper, we present a general consistent numerical formulation able to take into account strain rate and thermal effects of the material behavior. A thermomechanical implicit approach for element ... [more ▼]

In this paper, we present a general consistent numerical formulation able to take into account strain rate and thermal effects of the material behavior. A thermomechanical implicit approach for element erosion to model material failure is also presented. The numerical model will be illustrated by applications both from the metal forming and the impact domain. All these physical phenomena have been included in an implicit dynamic oriented object finite element code (implemented at LTAS-MN2L, University of Liège, Belgium) named Metafor [http://www.ltas-mnl.ulg.ac.be/dokuwiki doku.php?id=metafor:start]. [less ▲]

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See detailImplicit Differentiation with Microscopes
Bair, Jacques ULg; Henry, Valérie ULg

in Mathematical Intelligencer (2010), 32(1), 53-55

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See detailAn implicit erosion algorithm for the numerical simulation of metallic and composite materials submitted to high strain rate.
Ponthot, Jean-Philippe ULg; Boman, Romain ULg; Jeunechamps, Pierre-Paul et al

in Proceedings Indian National Science Academy (2013), 79/4(Part A), 519-528

In this paper, we present a general consistent numerical formulation able to take into account strain rate, damage and thermal effects of the material behaviour. A thermomechanical implicit approach for ... [more ▼]

In this paper, we present a general consistent numerical formulation able to take into account strain rate, damage and thermal effects of the material behaviour. A thermomechanical implicit approach for element erosion to model material failure is also presented. This approach can be applied both to ductile fracture for metals, relying on a continuum damage mechanics approach, coupled to different fracture criteria, as well as composite material failure described with either a failure criterion or a progressive damage model. The numerical models will be illustrated by different quasi-static and high strain rate applications for both metallic alloys and composite materials. All these physical phenomena have been included in an implicit dynamic object-oriented finite element code (implemented at LTAS-MN²L, University of Liège, Belgium) named Metafor [1]. [less ▲]

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See detailImplicit FE simulations of composite dynamic failure
Deliège, Geoffrey ULg; Papeleux, Luc ULg; Ponthot, Jean-Philippe ULg

in Proceedings of DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (2009, September)

This paper describes the implementation of failure criteria in an implicit finite element code. Tests are made with the Tsai-Wu criterion, which is widely used in the simulation of composite failure. The ... [more ▼]

This paper describes the implementation of failure criteria in an implicit finite element code. Tests are made with the Tsai-Wu criterion, which is widely used in the simulation of composite failure. The method is applied to the simulation of a tensile test of a laminate composite. The elasto-plastic material model of the composite ply, a polymer reinforced with woven carbon fabric, is described. Convergence of the results with respect to the mesh size and number of time steps is analysed and the reliability of the method is discussed. [less ▲]

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See detailImplicit high-order geometrically conservative scheme for the solution of flow problems on moving unstructured grids
Lepot, Ingrid; Vigneron, Didier ULg; Essers, Jean-André ULg et al

Conference (2003, March)

This paper presents a finite volume solver for the computation of three-dimensional unsteady flows of inviscid compressible perfect gases on moving unstructured meshes. This solver, based on a cell ... [more ▼]

This paper presents a finite volume solver for the computation of three-dimensional unsteady flows of inviscid compressible perfect gases on moving unstructured meshes. This solver, based on a cell-centered approach for arbitrary polyhedral cells, provides unconditional second-order space and time truncation error. A new way of satisfying the Discrete Geometric Conservation Law (DGCL) adapted to this scheme is proposed. Preliminary results are presented. [less ▲]

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See detailImplicit implementation of the Prevost model
Cerfontaine, Benjamin ULg; Charlier, Robert ULg

in Hicks, Michael A.; Brinkgreve, Ronald, R.J; Rohe, Alexander (Eds.) Numerical Methods in Geotechnical Engineering (2014)

The Prevost model for cohesionless soils (Prevost 1985) is currently used for the modelling of their cyclic behaviour, especially in earthquake engineering (Zerfa and Loret 2003) and (Yang and Elgamal ... [more ▼]

The Prevost model for cohesionless soils (Prevost 1985) is currently used for the modelling of their cyclic behaviour, especially in earthquake engineering (Zerfa and Loret 2003) and (Yang and Elgamal 2008). It’s made of conical yield surfaces that allow for plastic deformations in both loading and unloading. Its non-associated volumetric flow rule can roughly take into account pore pressure build-up and cyclic mobility. The method of implementation of a constitutive law is a crucial issue (Montáns and Caminero 2007) and (Mira et al. 2009). On one hand the accuracy of the solution must be ensured, especially when a large number of cycles are considered. But on the other hand, the cost of the computation must be minimized which implies step size as large as possible. In this paper, an implicit implementation of the Prevost model is proposed. The plastic flow rule is computed through a trapezoidal rule, at the time step n + 1/2, in order to increase the accuracy.An iterative process has to be solved, due to the implicit formulation.The Jacobian matrix of the internal Newton-Raphson process is computed analytically to enhance efficiency. The algorithm is implemented in the finite element code LAGAMINE that carries out fully-coupled analysis. Simulations of triaxial tests are compared with “exact” solution. [less ▲]

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