Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailMethod development strategies for the rapid enantioseparation of drugs by capillary electrophoresis using cyclodextrins as chiral additives
Fillet, Marianne ULg; Fotsing, L.; Piette, V. et al

in Journal de Pharmacie de Belgique (1998), 53

Detailed reference viewed: 8 (0 ULg)
Full Text
See detailA Method for Applying LOTOS at an Early Design Stage and Its Application to the ISO Transport Protocol
Leduc, Guy ULg

in The OSI95 Transport Service with Multimedia Support (1994)

We propose a method applicable to the design of large and abstract LOTOS specifications. More precisely, this method explains how to generate a constrain-oriented specification which is an adequate ... [more ▼]

We propose a method applicable to the design of large and abstract LOTOS specifications. More precisely, this method explains how to generate a constrain-oriented specification which is an adequate abstract and modular starting point of a complex design process leading to implementation. It is illustrated on a substantial part of the ISO Transport Protocol class 4 which is considered as a complex and stable case study. Having proved the feasibility of the method on this protocol, it was then used to specify (parts of) the new transport protocol TPX of OSI95. [less ▲]

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailMethod for co-purification of equine neutrophil elastase and myeloperoxidase from a limited blood volume.
de la Rebière de Pouyade, Geoffroy ULg; Serteyn, Didier ULg; Deby, Ginette ULg et al

in Research in Veterinary Science (2009)

Neutrophil myeloperoxidase (MPO) and elastase can be released in severe inflammatory diseases and cause tissue injuries. Equine enzymes have already been individually purified from large blood quantities ... [more ▼]

Neutrophil myeloperoxidase (MPO) and elastase can be released in severe inflammatory diseases and cause tissue injuries. Equine enzymes have already been individually purified from large blood quantities. We describe the isolation of both enzymes from a same limited blood volume. Both MPO and elastase were extracted by crushing PMN isolated by centrifugation on a percoll-gradient from a 460ml blood collection. MPO and elastase were separated by an ionic exchange chromatography phase and further purified by gel filtration chromatography on Superdex 200 and 75, respectively. Enzymes were identified in the collected fractions by specific enzymatic assays. The final purity was verified by electrophoresis. Specific activity was improved to 19.92 and 34.3x for elastase (final yield: 340mug) and MPO (final yield: 130mug), respectively, during the procedure. Results show the possibility of isolating both enzymes from the same blood sample with a sufficient yield and purity for future studies on their implication and interaction during inflammatory diseases. [less ▲]

Detailed reference viewed: 41 (14 ULg)
See detailMethod for controlled radical polymerisation
Jérôme, Robert ULg; Creutz, Serge; Dubois, Philippe et al

Patent (1998)

The invention concerns a method for making a polymer or a copolymer by radical polymerisation of at least one unsaturate monomer in the presence of a stabiliser whereby a stabiliser complying with general ... [more ▼]

The invention concerns a method for making a polymer or a copolymer by radical polymerisation of at least one unsaturate monomer in the presence of a stabiliser whereby a stabiliser complying with general formula (I) is used in which the substituents (Z)m, (R)n and Y can have different values. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
See detailMethod for controlled radical polymerization
Jérôme, Robert ULg; Creutz, Serge; Dubois, Philippe et al

Patent (1998)

The invention concerns a method for making a polymer or a copolymer by radical polymerisation of at least one unsaturate monomer in the presence of a stabiliser whereby a stabiliser complying with general ... [more ▼]

The invention concerns a method for making a polymer or a copolymer by radical polymerisation of at least one unsaturate monomer in the presence of a stabiliser whereby a stabiliser complying with general formula (I) is used in which the substituents (Z)m, (R)n and Y can have different values. [less ▲]

Detailed reference viewed: 37 (7 ULg)
Peer Reviewed
See detailMethod for detecting interest points in images using angular signatures
Grogna, David ULg; Boutaayamou, Mohamed ULg; Verly, Jacques ULg

in IEEE Xplore Digital Library (2016)

We present an innovative method for detecting interest points (IPs) in grayscale and color images. It is based on the use of angular signatures (ASs), produced by spinning, at each pixel in the image, an ... [more ▼]

We present an innovative method for detecting interest points (IPs) in grayscale and color images. It is based on the use of angular signatures (ASs), produced by spinning, at each pixel in the image, an "x-tapered, y-derivative, half-Gaussian kernel" in discrete angular steps. By exploiting the AS(s) produced at each pixel, it automatically "classifies" the pixel as being an IP or not. We present preliminary results on synthetic grayscale and real color 2D images, and these confirm the potential value of the method. It can easily be extended from grayscale and color images to images with any number of components, as well as to 3D volumetric images and images on grids of higher dimensionality. It is useful for stereo matching and video tracking. [less ▲]

Detailed reference viewed: 19 (3 ULg)
Full Text
Peer Reviewed
See detailA method for estimating the migration time of plant species within the time range of 14C-Dating.
Juvigné, Etienne ULg; Bastin, B; Delibrias, G et al

in Quaternary International (1998), 47/48

Detailed reference viewed: 19 (1 ULg)
Full Text
Peer Reviewed
See detailMethod for estimation of low outer membrane permeability to beta-lactam antibiotics
Lakaye, Bernard ULg; Dubus, Alice ULg; Joris, Bernard ULg et al

in Antimicrobial Agents and Chemotherapy (2002), 46(9), 2901-2907

The outer membrane of gram-negative bacteria plays a major role in beta-lactam resistance as it slows down antibiotic entry into the periplasm and therefore acts in synergy with beta-lactamases and efflux ... [more ▼]

The outer membrane of gram-negative bacteria plays a major role in beta-lactam resistance as it slows down antibiotic entry into the periplasm and therefore acts in synergy with beta-lactamases and efflux systems. Up to now, the quantitative estimation of low outer membrane permeability by the method of Zimmermann and Rosselet was difficult because of the secreted and cell surface-associated beta-lactamases. The method presented here uses the acylation of a highly sensitive periplasmic penicillin-binding protein (PBP) (BlaR-CTD) to assess the rate of beta-lactam penetration into the periplasm. The method is dedicated to measurement of low permeability and is only valid when the diffusion rate through the outer membrane is rate limiting. Cytoplasmic membrane associated PBPs do not interfere since they are acylated after the very sensitive BlaR-CTD. This method was used to measure the permeability of beta-lactamase-deficient strains of Enterobacter cloacae and Enterobacter aerogenes to benzylpenicillin, ampicillin, carbenicillin, cefotaxime, aztreonam, and cephacetrile. Except for that of cephacetrile, the permeability coefficients were equal to or below 10(-7) cm/s. For cephacetrile, carbenicillin, and benzylpenicillin, the outer membrane of E. cloacae was 20 to 60 times less permeable than that of Escherichia coli, whereas for cefotaxime, aztreonam, and ampicillin it was, respectively, 400, 1,000, and 700 times less permeable. The permeability coefficient for aztreonam is the lowest ever measured (P = 3.2 X 10(-9) cm/s). Using these values, the MICs for a beta-lactamase-overproducing strain of E. cloacae were successfully predicted, demonstrating the validity of the method. [less ▲]

Detailed reference viewed: 40 (10 ULg)
Full Text
Peer Reviewed
See detailA method for evaluating transport energy consumption in suburban areas
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Environmental Impact Assessment Review (2012), 33

Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport ... [more ▼]

Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport energy consumption is rarely taken into account when the sustainability of suburban structures is studied. In this context, the paper presents a method to estimate transport energy consumption in residential suburban areas. The study aimed, on this basis, at highlighting the most efficient strategies needed to promote awareness and to give practical hints on how to reduce transport energy consumption linked to urban sprawl in existing and future suburban neighborhoods. The method uses data collected by using empirical surveys and GIS. An application of this method is presented concerning the comparison of four suburban districts located in Belgium to demonstrate the advantages of the approach. The influence of several parameters, such as distance to work places and services, use of public transport and performance of the vehicles, are then discussed to allow a range of different development situations to be explored. The results of the case studies highlight that travelled distances, and thus a good mix between activities at the living area scale, are of primordial importance for the energy performance, whereas means of transport used is only of little impact. Improving the performance of the vehicles and favoring home-work give also significant energy savings. The method can be used when planning new areas or retrofitting existing ones, as well as promoting more sustainable life styles regarding transport habits. [less ▲]

Detailed reference viewed: 360 (67 ULg)
Full Text
See detailA method for evaluating weaknesses and critical steps in the Radiation Treatment Process through Precursor Events reporting
LENAERTS, Eric ULg; DELGAUDINE, Marie ULg; COUCKE, Philippe ULg

Poster (2011, September)

objectives: to establish a method based on the reporting of precursor events to detect and to assess weak steps in the Radiation Treatment process. These steps are categorized according to Work domains ... [more ▼]

objectives: to establish a method based on the reporting of precursor events to detect and to assess weak steps in the Radiation Treatment process. These steps are categorized according to Work domains, functional Basic Responsibilities and levels of Severity of precursor events [less ▲]

Detailed reference viewed: 24 (5 ULg)
Full Text
Peer Reviewed
See detailA method for identification of non-linear multi-degree-of-freedom systems
Dimitriadis, Grigorios ULg; Cooper, Jonathan E

in Proceedings of the Institution of Mechanical Engineers - Part G - Journal of Aerospace Engineering (1998), 212(4), 287-298

System identification methods for non-linear aeroelastic systems could find uses in many aeroelastic applications such as validating finite element models and tracking the stability of aircraft during ... [more ▼]

System identification methods for non-linear aeroelastic systems could find uses in many aeroelastic applications such as validating finite element models and tracking the stability of aircraft during flight flutter testing. The effectiveness of existing non-linear system identification techniques is limited by various factors such as the complexity of the system under investigation and the type of non-linearities present. In this work, a new approach is introduced which can identify multi-degree-of-freedom systems featuring any type of non-linear function, including discontinuous functions. The method is shown to yield accurate identification of three mathematical models of aeroelastic systems containing a wide range of structural non-linearities. [less ▲]

Detailed reference viewed: 33 (4 ULg)
See detailMethod for identifying cows with mastitis by bulk genotyping of tank milk.
Georges, Michel ULg; Blard, Grégoire; Coppieters, Wouter ULg

Patent (2013)

Detailed reference viewed: 10 (1 ULg)
See detailMethod for identifying cows with mastitis by bulk genotyping of tank milk.
Georges, Michel ULg; Coppieters, Wouter ULg; Blard, Grégoire

Patent (2013)

Detailed reference viewed: 49 (2 ULg)
Full Text
See detailMethod for increasing the bioavailability of inhaled compounds
Vanbever, Rita; Koussoroplis, Salomé; Cataldo, Didier ULg et al

Patent (2015)

Detailed reference viewed: 28 (2 ULg)
See detailMethod for increasing the bioavailability of inhaled compounds
Vanbever, Rita; Koussoroplis, Salomé; Cataldo, Didier ULg et al

Patent (2014)

Detailed reference viewed: 28 (1 ULg)
Peer Reviewed
See detailA method for isolation of intact, translationally active ribonucleic acid
Cathala, G.; Savouret, J. F.; Mendez, B. et al

in DNA (1983), 2(4), 329-35

A method for isolation of large, translationally active RNA species is presented. The procedure involves homogenization of cells or tissues in 5 M guanidine monothiocyanate followed by direct ... [more ▼]

A method for isolation of large, translationally active RNA species is presented. The procedure involves homogenization of cells or tissues in 5 M guanidine monothiocyanate followed by direct precipitation of RNA from the guanidinium by 4 M LiCl. Modifications are described for use with tissue culture cells, yeast, tissues, or isolated nuclei. The advantages of the procedure include speed, simplicity, avoidance of an ultracentrifugation, and its applicability to large numbers of small samples. The procedure yields large mRNA precursors up to 10 kb and mRNA species which translate very well. However, small (less than 300 nucleotides) RNA species are recovered with a poor yield. [less ▲]

Detailed reference viewed: 165 (0 ULg)
Full Text
Peer Reviewed
See detailA method for low-flow estimation at ungauged sites: a case study in Wallonia (Belgium)
Grandry, Maud ULg; Gailliez, Sébastien ULg; Sohier, Catherine ULg et al

in Hydrology and Earth System Sciences (2013), 2013(17), 1319-1330

Well-integrated water management can notably require estimating low flows at any point of a river. Depending on the management practice, it can be needed for various return periods. This is seldom ... [more ▼]

Well-integrated water management can notably require estimating low flows at any point of a river. Depending on the management practice, it can be needed for various return periods. This is seldom addressed in the literature. This paper shows the development of a full analysis chain including quality analysis of gauging stations, low-flow frequency analysis, and building of a global model to assess low-flow indices on the basis of catchment physical parameters. The most common distributions that fit low-flow data in Wallonia were two-parameter lognormal and gamma. The recession coefficient and percolation were the most explanatory variables, regardless of the return period. The determination coefficients of the models ranged from 0.51 to 0.67 for calibration and from 0.61 to 0.80 for validation. The regression coefficients were found to be linked to the return period. This was used to design a complete equation that gives the low-flow index based on physical parameters and the desired return period (in a 5 to 50 yr range). The interest of regionalisation and the development of regional models are also discussed. Four homogeneous regions are identified, but to date the global model remains more robust due to the limited number of 20-yr-long gauging stations. This should be reconsidered in the future when enough data will be available. [less ▲]

Detailed reference viewed: 82 (19 ULg)
Full Text
See detailMethod for manufacturing a junction
Nguyen, Ngoc Duy ULg; Loo, Roger; Caymax, Matty

Patent (2012)

The present invention relates to a semiconductor device comprising a homojunction or a heterojunction with a controlled dopant (concentration) profile and a method of making the same. Accordingly, one ... [more ▼]

The present invention relates to a semiconductor device comprising a homojunction or a heterojunction with a controlled dopant (concentration) profile and a method of making the same. Accordingly, one aspect of the invention is a method for manufacturing a junction comprising forming a first semiconductor material comprising a first dopant having a first concentration and thereupon forming a second semiconductor material comprising a second dopant, having a second concentration thereby forming a junction, and depositing by Atomic Layer Epitaxy or Vapor Phase Doping at least a fraction of a monolayer of a precursor suitable to form the second dopant on the first semiconductor material, prior to forming the second semiconductor material, thereby increasing the second concentration of the second dopant at the junction. [less ▲]

Detailed reference viewed: 76 (12 ULg)
Full Text
See detailMethod for manufacturing an improved optical layer of light emitting device with surface nano-micro texturation based on coherent electromagnetic radiation speckle lithography
Loicq, Jerôme ULg; Fleury-Frenette, Karl ULg; Vandormael, Denis

Patent (2012)

An object of the present invention is to provide a cheap, rapid, controlled, reproducible and polyvalent method for manufacturing a light emitting device with an internal source of light capable of ... [more ▼]

An object of the present invention is to provide a cheap, rapid, controlled, reproducible and polyvalent method for manufacturing a light emitting device with an internal source of light capable of achieving an enhancement in extraction efficiency. The invention proposes a method for manufacturing an optical layer for a light emitting device having an internal source of light and an optical layer separating the internal source of light and an external medium of light diffusion, wherein the method comprises the use of coherent electromagnetic radiation speckle lithography, such as laser speckle lithography, to make a nano/micro texturation on at least one surface of the optical layer [less ▲]

Detailed reference viewed: 71 (11 ULg)