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See detailConcept of a mobile automatic milking system and first results at grazing
Dufrasne, Isabelle ULg

in Proceedings 2nd meeting EGF Working Group Grazing - Innovation in grazing (2012, October)

In Europe, farmers have to manage larger herds but, at the same time, want to have a normal social life. So, the automatic milking system (AMS) can bring solutions. This technology implies in most cases ... [more ▼]

In Europe, farmers have to manage larger herds but, at the same time, want to have a normal social life. So, the automatic milking system (AMS) can bring solutions. This technology implies in most cases, the cessation of grazing although grazing is appreciated by the consumers who consider it to be a natural practice. At the experimental farm of the University of Liege, the concept of a mobile milking robot has been developed with a private company. The prototype is used indoors during the winter season and is moved outdoors during the grazing season in pastures romote from the farm. [less ▲]

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See detailThe concept of age in marine modelling I. Theory and preliminary model results
Deleersnijder, Eric; Campin, Jean-Michel; Delhez, Eric ULg

in Journal of Marine Systems (2001), 28(3-4), 229-267

The age of a particle of a seawater constituent is defined to be the time elapsed since the particle under consideration left the region, in which its age is prescribed to be zero. An Eulerian theory of ... [more ▼]

The age of a particle of a seawater constituent is defined to be the time elapsed since the particle under consideration left the region, in which its age is prescribed to be zero. An Eulerian theory of the age is presented, in which advection, diffusion, production and destruction phenomena are properly accounted for. The key hypothesis is that the mean age of a set of particles is to be evaluated as the mass-weighted average of the ages of the particles under study. The basic variable is the concentration distribution function, representing, at a given time and location, the distribution over the age of the concentration of the constituent being considered. This function satisfies a partial differential equation, which, upon appropriate integration over the age, yields the equations, in flux form, governing the evolution of the concentration and the age concentration. The ratio of the latter variable to the former is the mean age. Further theoretical developments are presented, including a thought experiment showing that mixing processes cause the ages of various constituents to be different from each other. The potential of the age as a tool for understanding complex marine flows is briefly demonstrated by analysing the results of two numerical models. The ages of a passive tracer, a radioactive tracer and the water are computed, along with a suitably defined radio-age. First, the fate of tracers released into the English Channel at La Hague is simulated. Then, ages are computed in the World Ocean as a measure of the time that has elapsed since leaving the surface layers. A theorem is demonstrated, which specifies that the age of the radioactive tracer must be smaller than the relevant radio-age, the latter being smaller than the age of the passive tracer, which, under appropriate hypotheses, can be seen to be equivalent to the age of the water. These inequalities seem to be remarkably robust, since they are found to hold valid in most of the numerical and analytical results examined in the present study. On the other hand, a dimensionless number is highlighted, which is believed to play an important role in the scaling of the differences between ages. (C) 2001 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailThe concept of age in marine modelling II. Concentration distribution function in the English Channel and the North Sea
Delhez, Eric ULg; Deleersnijder, Eric

in Journal of Marine Systems (2002), 31(4), 279-297

The age of seawater and the age of real or idealized tracers are often used as diagnostic tools to better understand complex hydrodynamic flows. In most studies, the focus is on some averages of the ages ... [more ▼]

The age of seawater and the age of real or idealized tracers are often used as diagnostic tools to better understand complex hydrodynamic flows. In most studies, the focus is on some averages of the ages of the different particles making up a water parcel. The theory developed in Delhez et al. [Ocean Modell. I (1999) 17] and Deleersnijder et al. [J. Mar. Syst. 28 (2001) 229] provides, however, a more detailed description of the distribution of the ages of these particles through the so-called concentration distribution function. In this paper, the numerical aspects of the resolution of the evolution equation for the concentration distribution function in a five-dimensional space (time x 3D space x age dimension) are developed. Evolution equations for the moments of the concentration distribution function up to any order are also derived. A real case application of this theory to the simulation of the advection-dispersion of tracers (technetium-99) discharged at the nuclear fuel reprocessing plant of Cap de La Hague is described. The comparison of the results with those from previous studies demonstrates the advantages of the new method for the computation of the mean age. In particular, the method provides a detailed description of the temporal variations of the mean age only. The analysis of the full concentration distribution function and of its basic statistics shows that the standard deviation of the age of the different particles is far from negligible and should never be overlooked when analyzing age fields. A simplified analytical example suggests that the standard deviation of the age distribution is a measure of the integrated diffusion undergone by the tracer along its path from the source to the observation point. (C) 2002 Elsevier Science B.V All rights reserved. [less ▲]

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See detailThe concept of career in ethnic and migration studies
Martiniello, Marco ULg

Scientific conference (2010, October 11)

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See detailThe concept of Career in Ethnic and Migration Studies
Martiniello, Marco ULg

Scientific conference (2011, June 21)

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See detailThe Concept of Career in Ethnic and Migration Studies
Martiniello, Marco ULg

Scientific conference (2011, February 16)

Detailed reference viewed: 29 (0 ULg)
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See detailThe Concept of Dominance in EC Competition Law
Petit, Nicolas ULg; Geradin, Damien; Hofer, Paul et al

in GCLC (2005)

The first prong of Article 82 of the EC Treaty, which prohibits abuses of a dominant position, requires, prior to the identification of abusive behaviour, evidence that the firm under scrutiny enjoys a ... [more ▼]

The first prong of Article 82 of the EC Treaty, which prohibits abuses of a dominant position, requires, prior to the identification of abusive behaviour, evidence that the firm under scrutiny enjoys a dominant position. Surprisingly, this issue seems to be sometimes overlooked. Enforcers, practitioners and scholars have recently paid greater attention to the concept of abuse than to the question of dominance when discussing Article 82 EC. This should not, however, be interpreted as a sign that the law of dominance is clear. Quite to the contrary, the concept of dominance raises a wide array of questions which are discussed in the sections that follow [less ▲]

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See detailTHE CONCEPT OF ECONOMIC SECURITY OF THE ENTERPRISE: WHY DO WE NEED IT?
Shutyak, Yuliya ULg; Danylenko, Olena; Van Caillie, Didier ULg

Scientific conference (2014, April 10)

This article addresses the theoretical concept of economic security of the enterprise (ESE) and discusses its features in post-Soviet countries based on a review of the Ukrainian scientific literature ... [more ▼]

This article addresses the theoretical concept of economic security of the enterprise (ESE) and discusses its features in post-Soviet countries based on a review of the Ukrainian scientific literature. This study includes an explanation of the specific conditions of economic and social transformation as well as of the developments in post-Soviet economic science that led to the introduction of the term “economic security of the enterprise”. This research intends to explain the concept of ESE in post-Soviet economic thought and discusses its utility for different stakeholders. The main research questions are therefore: What are the approaches to a definition of ESE within the concept of ESE in Ukrainian economic thought? How can the main features of ESE be defined? What are the benefits of the concept of ESE for a firm's stakeholders? Our study is based on a qualitative content analysis of the Ukrainian economic literature considering ESE. We conducted a content analysis of the definitions of ESE presented in over 50 dissertations defended in Ukraine during the period 1999-2011. This analysis allows us to identify the distinctive features of the concept: ESE is presented as a generalizing concept, in which terms such as competitiveness, threats, and profitability point out only one aspect of the phenomenon neglecting others. The notion of economic security of the enterprise has a complex internal nature that includes a variety of structural interactions among internal elements of a firm and its external environment, and thus we suggest to define the notion of ESE via its static and dynamic dimensions. Being a broader concept than other widely applied concepts (such as Enterprise Risk Management), the concept of ESE can be of special interest for business managers as well as public authorities due to its ability to propose a solid foundation for economic security on local, regional and national levels. In this context, the economic security framework gives public authorities a basis for policy decisions regarding the future of enterprises. [less ▲]

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See detailThe concept of economic security of the hospital: A new look at the levers of control
Shutyak, Yuliya ULg; Van Caillie, Didier ULg

in Forum Scientiae Oeconomia (2014), 2/2

Despite a significant progress achieved in the healthcare sector during last decades, we need to admit the fact that many urgent problems remain unsolved even in well developed countries. Along with other ... [more ▼]

Despite a significant progress achieved in the healthcare sector during last decades, we need to admit the fact that many urgent problems remain unsolved even in well developed countries. Along with other major factors, economic causes of these problems hold a prominent position. It is then necessary to think about a need of shifting from a view of hospitals as ever being institutions existing by default in any society to a view of hospitals as organisations with an incorporated economic mechanism, adapted to social changes and relevant economic risks. With this regard, this paper seeks to incorporate the concept of economic security of the hospital into Simons’ LOC model used in hospital management. We provide a brief overview of the concept of economic security of the organization. We adjust this concept for hospital management considering the healthcare system as an economic system and taking main problems of the hospital and interests of stakeholders in the core of strategy development. Further, we accommodate the concept with the levers of control. The result of the paper is a revised Simons’ LOC model which provides a theoretical framework for further research on hospital management and serves a modified management instrument. [less ▲]

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See detailThe concept of economic security of the hospital: A new look at the levers of control
Shutyak, Yuliya ULg; Van Caillie, Didier ULg

Conference (2014, July)

Despite a significant progress achieved in the healthcare sector during last decades, we need to admit the fact that many urgent problems remain unsolved even in well developed countries. Along with other ... [more ▼]

Despite a significant progress achieved in the healthcare sector during last decades, we need to admit the fact that many urgent problems remain unsolved even in well developed countries. Along with other major factors, economic causes of these problems hold a prominent position. It is then necessary to think about a need of shifting from a view of hospitals as ever being institutions existing by default in any society to a view of hospitals as organisations with an incorporated economic mechanism, adapted to social changes and relevant economic risks. With this regard, this paper seeks to incorporate the concept of economic security of the hospital into Simons’ LOC model used in hospital management. We provide a brief overview of the concept of economic security of the organization. We adjust this concept for hospital management considering the healthcare system as an economic system and taking main problems of the hospital and interests of stakeholders in the core of strategy development. Further, we accommodate the concept with the levers of control. The result of the paper is a revised Simons’ LOC model which provides a theoretical framework for further research on hospital management and serves a modified management instrument. [less ▲]

Detailed reference viewed: 34 (13 ULg)
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See detailThe concept of iso-inertial assessment: Reproducibility analysis and descriptive data
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Lhermerout, Claude ULg et al

in Isokinetics & Exercise Science (2006), 14(1), 53-62

The purpose of this study was to investigate the reproducibility of findings derived from a new iso-inertial dynamometer during bench press (BP) and squat (SQ) and to provide descriptive data for ... [more ▼]

The purpose of this study was to investigate the reproducibility of findings derived from a new iso-inertial dynamometer during bench press (BP) and squat (SQ) and to provide descriptive data for recreational athletes. A position transducer and accelerometer were combined to assess velocity and power during free weight lifting exercises. Simulated movement with a pulley system revealed the excellent technical consistency of the dynamometer. Sixteen male subjects participated in the study. Iso-inertial tests consisted of lifting as fast as possible four different relative loads (35, 50, 70, 90% 1RM in BP and 45, 60, 75, 90% 1RM in SQ). The test was repeated one week later. Analysis of variance revealed no significant variation between sessions or trials. Reproducibility was better in velocity than in power, although it remained fairly good in both exercises (coefficients of variation [CV] never exceeding 10%) except for the time to peak power parameter. Descriptive data confirmed the classical force-velocity and force-power relationships for BP and SQ. In conclusion, this study demonstrated reliable measurements in BP and SQ iso-inertial exercises. Monitoring force-velocity and force-power relationships offers an original functional approach in strength training supervision. [less ▲]

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See detailThe concept of numerical admittance
Denoël, Vincent ULg; Maquoi, René ULg

in Archive of Applied Mechanics (2012)

The reconstruction of a discretized random distributed loading, as the wind pressure from some measurement taps, is usually performed by simple or advanced interpolation between the nodes of the mesh ... [more ▼]

The reconstruction of a discretized random distributed loading, as the wind pressure from some measurement taps, is usually performed by simple or advanced interpolation between the nodes of the mesh. This results in an overestimation of the coherence of the loading, especially in the high frequency range where the loading typically shows less coherence. An expensive way to circumvent this issue is to make the mesh denser. This is however not always possible, in particular in experimental testing where there is usually a limited number of available measurement spots. The concept of numerical admittance is introduced in order to rectify this inaccurate estimation of the resulting loading in the high-frequency range. It is actually introduced as a legitimate way of reducing the loading in accordance with the looseness of the discretisation mesh. Another major advantage of the concept is the opportunity to determine adequately the mesh size independently from the correlation length scale. [less ▲]

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See detailThe concept of partial age, a generalisation of the notion of age: theory, idealised illustrations and realistic applications
Deleersnijder, Eric; Mouchet, Anne ULg; Debrauwere, Anouk et al

Conference (2014, May 12)

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See detailConcept of robustness
Demonceau, Jean-François ULg

Conference (2015, June 16)

Detailed reference viewed: 38 (8 ULg)
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See detailConcept of structural fire safety for bridges K05 and K01
Franssen, Jean-Marc ULg

Report (2010)

The fire scenario as well as the extent of fire protection to apply to these two bridge structures are investigated.

Detailed reference viewed: 48 (3 ULg)
See detailThe Concept of Tax in Europe
Bourgeois, Marc ULg

Scientific conference (2006, June)

Detailed reference viewed: 20 (0 ULg)
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See detailThe concept of Text Topology. Some applications to Verb-Form Distributions in Language Corpora
Longrée, Dominique ULg; Luong, Xuan; Juillard, Michel et al

in Literary & Linguistic Computing (2007), 22(2), 167-186

Detailed reference viewed: 11 (1 ULg)
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See detailThe concept of the penicillin target from 1965 until today. The thirteenth marjory stephenson memorial lecture
Ghuysen, Jean-Marie ULg

in Journal of General Microbiology (1977, July 01), 101(1), 13-33

Detailed reference viewed: 15 (0 ULg)