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See detailPerformance expectations, personal resources and job resources: How to they predict work engagement?
Barbier, Marie; Hansez, Isabelle ULg; Chmiel, Nik et al

in European Journal of Work and Organizational Psychology (2013), 22(6), 750-762

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See detailPerformance increase of carbon dioxide refrigeration cycle with the addition of parallel compression economization
Bell, Ian ULg

in Proceedings of the 6th IIR Gustav Lorenzen Natural Working Fluids (2004, September)

In the future, it would be preferable to replace the halocarbon refrigerants with natural refrigerants like carbon dioxide, but there have been concerns over the use of carbon dioxide as a refrigerant due ... [more ▼]

In the future, it would be preferable to replace the halocarbon refrigerants with natural refrigerants like carbon dioxide, but there have been concerns over the use of carbon dioxide as a refrigerant due to its perceived inefficiency. It is possible to partially overcome this problem by the manipulation of the cylinders of the compressors used in the vapor compression refrigeration cycle. If some of the cylinders are used to compress vapor in a parallel compression system from an intermediary pressure, a refrigerating effect and COP greater than that of the system with all of the cylinders on suction can be achieved. An analytic model was created that allowed environmental and physical parameters to be altered. The investigations also included experimentation with the addition of superheat for the primary compression path, for which performance increases were noted for some operating conditions. The primary focus of the research was for the use of carbon dioxide in a standard air conditioning application. Accordingly, evaporation and condensation pressures were selected to correspond closely with evaporation and condensation temperatures for other refrigerants. Under the conditions used for the following research, superheating did not improve efficiency, and was not included. Physical limitations placed on the ratio of the suction cylinder swept volume to the economized cylinder swept volume suggest that building this economized compressor would be feasible. In fact, a standard reciprocating compressor could be altered such that 2 to 4 cylinders, depending on the volumetric ratio, are used for the economized path. The research demonstrates that under some conditions an economized carbon dioxide system outperforms a similar halocarbon system in terms of efficiency and capacity. In the end, this is the litmus test that proves that carbon dioxide can compete on the level with popular halocarbon refrigerants in this economized mode. [less ▲]

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See detailPerformance Indicators Framework for Biodiversity Management in Gypsum Quarries Throughout Europe
Pitz, Carline ULg; Mahy, Grégory ULg; Marlet, Christine et al

Report (2013)

This study aims to establish a common Key Performance Indicators (KPIs) framework to report biodiversity for the Gypsum Industry at the European level. An original approach of participatory process has ... [more ▼]

This study aims to establish a common Key Performance Indicators (KPIs) framework to report biodiversity for the Gypsum Industry at the European level. An original approach of participatory process has been developed in order to integrate the different opinions and to reach a consensus framework between different stakeholders’ groups: - Eurogypsum stakeholders - European and local authorities - Scientific panel : universities and consulting offices - European and local associations for the conservation of nature - Stakeholders from the mining sector The strategy is based on five main steps: (i) To Build a stakeholders’ network; (ii) To build a framework proposal to be submitted to stakeholders by selecting a maximum set of indicators based on the literature and reaching an agreement on indicators with Eurogypsum (Focus Group); (iii) Reaching a consensus framework with all the stakeholders and evaluating feasibility by a Delphi Policy survey, by the analysis of the EIAs of the Gypsum Industry and by visiting three European quarries; (iv) Final validation with Eurogypsum (meeting); (v) Creating indicators’ Factsheets and a Eurogyspum report to the destination of the public. The resulting framework contains eleven indicators which are the most acceptable set of indicators for all the stakeholders. It answers to European legislation and strategies for biodiversity. It is intended to improve sustainability in the quarries and to help managing biodiversity, to allow setting up of appropriate reporting systems. The aim is to maintain the biodiversity status of the gypsum quarries. It is a flexible framework adaptable given the local context of each gypsum quarry in order to prove if a No Net Loss has been reached at a quarry’s scale. [less ▲]

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See detailPerformance indicators in cardiac surgery--time for public release.
Kolh, Philippe ULg

in Interactive Cardiovascular and Thoracic Surgery (2011), 12(4), 589-90

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See detailPerformance Measurement in Belgian Hospitals : a state-of-the-art
Van Caillie, Didier ULg; Rouhana, Rima ULg; Santin, Sarah

Scientific conference (2007, April 03)

This communication proposes a global state-of-the-art around the central question : "How is performance measured and controlled in Belgian hospitals. As a first step in a global research project dedicated ... [more ▼]

This communication proposes a global state-of-the-art around the central question : "How is performance measured and controlled in Belgian hospitals. As a first step in a global research project dedicated to the use of Balanced ScoreCard in publics hospitals around the world, it is essentially focused on global economic aspects and on major macroeconomic statistics. [less ▲]

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See detailPerformance Measurements of the microPET FOCUS 120 for Iodine-124 Imaging
Taleb, Dounia ULg; Bahri, Mohamed Ali ULg; Seret, Alain ULg et al

in IEEE Transactions on Nuclear Science (2012), PP

This study aimed to evaluate the performance of the microPET FOCUS 120 for 124I in terms of counting rate capability and image quality using the NEMA NU 4-2008 methodology. Scanner sensitivity was ... [more ▼]

This study aimed to evaluate the performance of the microPET FOCUS 120 for 124I in terms of counting rate capability and image quality using the NEMA NU 4-2008 methodology. Scanner sensitivity was measured for 124I for comparison and reached 75 cps/kBq, respectively, with the usual 350-650 keV energy window (EW) and 6 ns time window (TW). The noise equivalent count rate (NECR) index was defined as: NECR = RT2/(RP+RGP) (T = true, P = prompt, GP = γ-prompt). A rat phantom maximum NECR of 48 kcps was obtained for the 250-590 keV EW with 6 ns TW. An almost identical maximum NECR of 43 kcps was recorded for 350-590 and 350-650 keV EW and 6 ns TW. The 2 ns TW reduced the sensitivity and NECR by 40-50% for all EW. The mouse phantom NECR study was limited because of the maximum available activity concentration of 124I. The 250-590 keV EW showed the largest scatter and γ-prompt plus scatter fractions with 25.7% and 43%, respectively, for the rat phantom and 12.2% and 27% for the mouse phantom. With the 350-590 keV EW, these fractions decreased to 20% and 33.5% for the rat phantom and to 10% and 21% for the mouse phantom. The image quality was investigated with the NEMA NU 4-2008 dedicated phantom for four (two analytic and two iterative) 2D or 3D reconstruction methods. The lowest spillover ratios (SOR) for the phantom non-emitting regions were obtained for the 350-590 and 350-650 keV EWs. Recovery coefficients (RC) of the hot rods were the highest for the 350-590 keV EW except for the 1 mm rod. Scatter correction led to a large decrease in RC. The combination of the 350-590 keV EW with 6 ns TW appeared to be a good compromise between counting rate capability and image quality for the FOCUS 120, especially when maximum a posteriori reconstruction was used without scatter correction. Moreover this combination enabled the best quantification with an error as low as 0.36%. [less ▲]

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See detailPerformance modelling of peer-to-peer routing
Rai, I. A.; Brampton, A.; MacQuire, A. et al

in Parallel and Distributed Processing Symposium, 2007. IPDPS 2007. IEEE International (2007)

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See detailPerformance monitoring of an industrial boiler: classification of relevant variables with Random Forests
Sainlez, Matthieu ULg; Heyen, Georges ULg

in Pierucci, Sauro; Ferraris, Guido Buzzi (Eds.) 20th European Symposium on Computer Aided Process Engineering – ESCAPE20 (2010)

A data mining methodology, the random forests, is applied to analyze pollutant emission from the recovery boiler of a Kraft pulping process. Starting from a large database of raw process data, the goal is ... [more ▼]

A data mining methodology, the random forests, is applied to analyze pollutant emission from the recovery boiler of a Kraft pulping process. Starting from a large database of raw process data, the goal is to identify the input variables that explain the most output variations. [less ▲]

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See detailPerformance Monitoring Systems in Healthcare Organizations The Managerial Perception of Uncertainty in Volatile Environments
Rouhana, Rima; Van Caillie, Didier ULg

in IAMB (Ed.) Proceedings of the 10th IAMB Conference - "Management Challenges in Global Economy" (2011, June)

Monitoring performance in healthcare organizations appears evolving drastically over time, due to a continuous search for better quality, efficiency and timeliness. As a result, the usefulness of ... [more ▼]

Monitoring performance in healthcare organizations appears evolving drastically over time, due to a continuous search for better quality, efficiency and timeliness. As a result, the usefulness of traditional management/performance control systems in such organizations is questioned and a focus is then made on the context in which each organization is operating. In a contingent-based perspective, a limited number of qualitative and quantitative empirical studies examine how some major contingent variables (nature of the organization, size, structure…) influence both the managerial decision-making process and the management control process in healthcare organizations. But, while largely integrated in other managerial contexts (Kabwigiri and Van Caillie, 2000), most of them ignore the variable “uncertainty” and how uncertainty is perceived by managers in healthcare organizations. So, the prime interest of our empirical study is to appraise how uncertainty is appraised by managers in volatile environments. To investigate this subject further, we rely on seminal studies that link between the influence of the organizational attributes (structure, size, level of technology), and their effect on the managerial decisions-making (personal profile and perception) of a suitable management control system (MCS). Our methodology rests on a “qualitative comparative approach” of thirty case studies, lead in two heterogeneous environments (Belgium and Lebanon). Such method allows us to validate our theoretical framework with qualitative case studies collected via semi-structured questionnaire. Our findings provide us with a dialogue between a single (in-depth) case study exploring the phenomenon and a qualitative comparative approach. Thus, we gain understanding of the causal mechanisms and processes, as well as of the core determinants of the healthcare managerial adoption of performance monitoring systems (PMS). [less ▲]

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See detailPerformance of a wheelchair-user population on a running progressive maximal field test
Vanderthommen, Marc ULg; Zatta, S.; Crielaard, Jean-Michel ULg

in Vanderwoude, L.H.; Hopman, M.T.; Vankemenade, C.H. (Eds.) Biomedical aspects of manuel wheelchair propulsion. The State of the Art II (1999)

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See detailPerformance of Belgian general practitioners: a "best practice approach based on patient level data"
Fecher-Bourgeois, Fabienne ULg; Gillet, Pierre ULg

in Cahiers Economiques de Bruxelles (2000), 167(3ème trimestre 2000), 381-396

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See detailPerformance of belgian hospitals
Fecher-Bourgeois, Fabienne ULg

Conference (1993, September)

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See detailPerformance of Belgian hospitals: a frontier approach
Fecher-Bourgeois, Fabienne ULg; Bosmans, Nathalie

in Health Economics (1995), 4,5(Sep-oct 1995), 389-397

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See detailPerformance of creatinine and cystatin C-based glomerular filtration rate estimating equations in a European HIV-positive cohort.
Gagneux-Brunon, Amandine; DELANAYE, Pierre ULg; Maillard, Nicolas et al

in AIDS (2013)

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See detailThe performance of CTAs in changing market conditions
Hübner, Georges ULg; Papageorgiou, Nicolas

in Gregoriou, Greg; Karavas, V. N.; L'habitant, François-Serge (Eds.) et al Commodity Trading Advisors: Risk, Performance Analysis and Selection (2004)

Detailed reference viewed: 17 (3 ULg)