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See detailA Practical Bytecode Interpreter for Programmable Routers on Network Processor
Martin, Sylvain ULg; Leduc, Guy ULg

in Computer Networks (2009), 53(15), 2740-2751

WASP is a programmable router platform that allows end-hosts to store ephemeral state in routers along the path of IP flows and to execute packet-attached bytecode that processes this data. We exploit ... [more ▼]

WASP is a programmable router platform that allows end-hosts to store ephemeral state in routers along the path of IP flows and to execute packet-attached bytecode that processes this data. We exploit lessons from past active network research and our knowledge of network processors to design a minimal interpreter that favours language restrictions over run-time checks. WASP provides safety with limited performance penalty through predictable execution time and bounded usage of memory and network resources. WASP is expressive enough to enable several applications including statistics collection and service discovery. It can also detect common trunk of two Internet paths and exchange local measurements about these paths. We propose a robust implementation on the IXP2400 network processor, and evaluate its performance through short benchmark programs against native functions hard-coded in the router. We achieve latencies below 7$\,\mu{s}$, i.e. less than the reference IPv4 forwarding latency, and throughputs approaching 800\,kpps per core, which competes with, and sometimes even outperforms, native programs. We further exploit our results to give hints on further improving resource usage and guidelines on management of ephemeral stores in high-speed networks. [less ▲]

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See detailPractical case of HACCP methodology used for Staphylococcus aureus groth control in raw milk "fromage frais".
Broze, Olivier; Defrize, Nathalie; Sindic, Marianne ULg et al

in Proceedings of the Ninth conference on food microbiology (2004, September)

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See detailThe practical challenges of the Biosafety officer : interacting with the user
Grignet, Christine ULg

in The Biosafety Professional: roles and interactions in a complex network (2008)

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See detailPractical Computation of Nonlinear Normal Modes Using Numerical Continuation Techniques
Peeters, Maxime ULg; Viguié, Régis ULg; Kerschen, Gaëtan ULg et al

in International Workshop: Advancements in Design Optimization of Materials, Structures and Mechanical Systems, Xi'An, 2007 (2007)

The concept of nonlinear normal modes (NNMs) is considered in the present paper. One reason of the still limited use of NNMs in structural dynamics is that their computation is often regarded as ... [more ▼]

The concept of nonlinear normal modes (NNMs) is considered in the present paper. One reason of the still limited use of NNMs in structural dynamics is that their computation is often regarded as impractical. However, when resorting to numerical algorithms, we show that the NNM computation is possible with limited implementation effort, which paves the way to a practical method for determining the NNMs of nonlinear mechanical systems. The proposed algorithm relies on two main techniques, namely a shooting procedure and a method for the continuation of NNM motions. The algorithm is demonstrated using two different mechanical systems, a nonlinear two-degree-of-freedom system and a nonlinear cantilever beam discretized by the finite element method. [less ▲]

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See detailPractical design of a nonlinear tuned vibration absorber
Grappasonni, Chiara ULg; Habib, Giuseppe ULg; Detroux, Thibaut ULg et al

in Proceedings of the ISMA 2014 conference (2014, September)

The aim of the paper is to develop a new nonlinear tuned vibration absorber (NLTVA) capable of mitigating the vibrations of nonlinear systems which are known to exhibit frequency-energy-dependent ... [more ▼]

The aim of the paper is to develop a new nonlinear tuned vibration absorber (NLTVA) capable of mitigating the vibrations of nonlinear systems which are known to exhibit frequency-energy-dependent oscillations. A nonlinear generalization of Den Hartog’s equal-peak method is proposed to ensure equal peaks in the nonlinear frequency response for a large range of forcing amplitudes. An analytical tuning procedure is developed and provides the load-deflection characteristic of the NLTVA. Based on this prescribed relation, the NLTVA design is performed by two different approaches, namely thanks to (i) analytical formulas of uniform cantilever and doubly-clamped beams and (ii) numerical shape optimization of beams with varying width and thickness. A primary system composed of a cantilever beam with a geometrically nonlinear component at its free end serves to illustrate the proposed methodology. [less ▲]

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See detailPractical design tools for unprotected steel columns submitted to ISO-fire
Schleich, Jean-Baptiste; Mathieu, Jules; Chantrain, P. et al

Report (1989)

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See detailPractical Ephemeris Calculations -- Oliver Montenbruck
Manfroid, Jean ULg

in Ciel et Terre (1990), 106

Not Available

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See detailPractical feeding of sugar gliders (Petaurus breviceps)
Guillon, Leslie; Hornick, Jean-Luc ULg; Istasse, Louis ULg et al

in Mussa, P. P.; Nery, J.; Schiavone, A. (Eds.) et al Congress Proceedings 13t h Congress of the ESVCN (2009)

Communication relatant un essai d'alimentation pratique de sugar glider en captivité

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See detailA Practical Guide to LaTeX Tips and Tricks
Merciadri, Luca ULg

E-print/Working paper (2009)

LaTeX is a beautiful programming language. One sometimes wants to write in an easy and quick way various documents, such as letters, papers, reports, theses, and so on. Here, “one” can be a new student ... [more ▼]

LaTeX is a beautiful programming language. One sometimes wants to write in an easy and quick way various documents, such as letters, papers, reports, theses, and so on. Here, “one” can be a new student, an old professor, or even somebody who is not linked at all with any academic stuff. We often want special constructs in our documents. This is more difficult than basic typesetting, especially using LaTeX when you are not experienced. On one hand, scientists do not always have the time to learn another programming language, especially if they are making a PhD, or doing something else which asks for a lot of time. Using direct and working programming tricks can speed up your productivity, and make you learning better. But where can they be found? On the other hand, everybody wants to make nice documents, if possible. A nicer document attracts the reader. Evidently, “a nice document” is a subjective notion. By “nice document,” we want to speak about a document which 1. is structured in an unambiguous way, and has a clear presentation, 2. is read with pleasure, if possible. The beginner, whoever he is, often faces strange errors because he tries to teach LaTeX to do what he wants it to do. It is difficult to learn the advanced notions about LaTeX, even in an average period of time. The good books have to be found. But that is often the moment where you lack of time and that you are happy to find complete solutions. That is a moment where you tell to yourself “Is there no folk out there to give me such a trivial tip?” but nobody hears it. The aim of this book, is to avoid you these problems: you do not need to write everything from scratch, ask on various forums or Usenet groups, or even read heaps of books just to make a simple script. That is my goal. You can now continue writing your document in LaTeX’s philosophy: concentrating on your document’s content, at the place of its appearence. These reasons justify the presence of this book. I have tried to pack the most useful tricks which can enhance your documents’ content in a concise way. The aim is not to teach LaTeX programming, but to give a quick reference to all the tips and tricks that can be used if you are encountering a (difficult) problem, or simply facing a question which you cannot find the answer to. I consider that the reader is familiar with basic LATEX programming. It can be learnt from various sources (given in this book's bibliography), and many others. I hope this will give you new ideas about advanced ways to typeset text and to make different processes automatic, thus giving you more time for other activities. Many others subjects were added during Fall 2010. [less ▲]

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See detailPractical Handling, Ease of Use, Safety and Efficacy of A New Pediatric Triple-Chamber Bag for Parenteral Nutrition in Preterm Infants
rigo, J; marlowe, ML; Bonnot, D et al

in Pediatric Research (2011), 70(S5), 719

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See detailPractical issues in medication compliance in hypertensive patients
Krzesinski, Jean-Marie ULg; leeman, Marc

in Research Reports in Clinical Cardiology (2011), 2

Unsatisfactory compliance in the treatment of high blood presure is frequently due to sequential barriers, such as insufficient patient education about the illness and low motivation to receive any ... [more ▼]

Unsatisfactory compliance in the treatment of high blood presure is frequently due to sequential barriers, such as insufficient patient education about the illness and low motivation to receive any treatment, existence of a large gap between physicians'perceptions of the problem and clinical reality, complexity of the treatment potentially generating adverse effects, and a health care environment with few public education compaigns and incentives for better coordinated supportive care. In order to improve drug compliance, establishment of personalized plans adapted to each patient is required. First, a good doctor-patient relationship is mandatory, with regular education of the patient about hypertension and its risks, discussion about adverse drug effects, and the complexity and cost of treatment. Second, to have any chance of success, the provider should offer convenient appointments and tailor the treatment regimen to the patient's lifestyle and needs, with written instructions. Third, there is a need to promote active patient collaboration with treatment. An innovative combination of home self-measurement of blood pressure, use of new technology options, eg, texting or telemedicine, and creation of a multi-disciplinary working team can offer new, effective opportunities. This approach could reduce cardiovascular complications by improving the control of high blood pressure, and thereby the overall costs of hypertension to the health care system. [less ▲]

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See detailPractical methods for measuring and managing operational risk in the financial sector: A clinical study
Chapelle, Ariane; Crama, Yves ULg; Hübner, Georges ULg et al

in Journal of Banking and Finance (2008), 32

This paper analyzes the implications of the Advanced Measurement Approach (AMA) for the assessment of operational risk. Through a clinical case study on a matrix of two selected business lines and two ... [more ▼]

This paper analyzes the implications of the Advanced Measurement Approach (AMA) for the assessment of operational risk. Through a clinical case study on a matrix of two selected business lines and two event types of a large financial institution, we develop a procedure that addresses the major issues faced by banks in the implementation of the AMA. For each cell, we calibrate two truncated distributions functions, one for “normal” losses and the other for the “extreme” losses. In addition, we propose a method to include external data in the framework. We then estimate the impact of operational risk management on bank profitability, through an adapted measure of RAROC. The results suggest that substantial savings can be achieved through active management techniques. [less ▲]

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See detailPractical Methods for Measuring the Tortuosity of Porous Materials from Binary or Gray-Tone Tomographic Reconstructions
Gommes, Cédric ULg; Bons, Anton-Jan; Blacher, Silvia ULg et al

in AIChE Journal (2009), 55(8), 2000-2012

Two practical methods are proposed to measure the tortuosity of a porous or permeable material from its tomographic reconstruction. The first method is based on the direct measurement of the shortest ... [more ▼]

Two practical methods are proposed to measure the tortuosity of a porous or permeable material from its tomographic reconstruction. The first method is based on the direct measurement of the shortest distance between two points in the pores, and the second is based on the geodesic reconstruction of the pore or permeation space. Unlike the first method, the second can be directly applied to gray-tone tomograms, without the need of a segmentation step. The methods are illustrated with an electron tomogram of clay/plastic nanocomposite, an X-ray microtomogram of sandstone, and a series of model morphologies consisting of penetrable random spheres. For the latter series, the measured tortuosities compare very well with those derived independently from the theoretical effective diffusion coefficients [less ▲]

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See detailPractical protocol for large marine mammals necropsy and beach management
Jauniaux, Thierry ULg; Garcia Hartmann, M.; Coignoul, Freddy ULg

in meeting report (1998)

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See detailPractical recommendations on the use of echocardiography to assess pulmonary arterial hypertension--a Belgian expert consensus endorsed by the Working Group on Non-Invasive Cardiac Imaging.
LANCELLOTTI, Patrizio ULg; Budts, Werner; de Wolf, Daniel et al

in Acta Cardiologica (2013), 68(1), 59-69

Pulmonary hypertension (PH) is defined by a sustained increase in mean pulmonary arterial pressure > 25 mmHg. Due to its widespread availability, echocardiography (ECHO) is used as the first-line imaging ... [more ▼]

Pulmonary hypertension (PH) is defined by a sustained increase in mean pulmonary arterial pressure > 25 mmHg. Due to its widespread availability, echocardiography (ECHO) is used as the first-line imaging modality to detect pulmonary PH and assess right ventricular (RV) function in daily routine. As such, ECHO is the key examination to detect the presence of PH, to provide valuable prognostic information and to give an orientation to therapeutic strategies. In addition to detection and screening, ECHO also provides clues for the differential diagnosis of PH. The present document, based on a consensus of experts, provides practical recommendations for the use of ECHO in the evaluation of PH and of its consequences on the right ventricle. [less ▲]

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