Last 7 days
Bookmark and Share    
Full Text
See detailDiagnosis of sickle cell disease by innovative PCR without DNA extraction
DETEMMERMAN, Liselot; BOEMER, François ULg; OLIVIER, Sabine

Poster (2016, February)

Detailed reference viewed: 31 (1 ULg)
Full Text
See detailIntroduction au droit - partim droit public (HEC) - plan général du cours 2015-16
Bouhon, Frédéric ULg

Learning material (2016)

Ce document présente le plan général du partim 'droit public' du cours d'Introduction au droit destiné aux étudiants inscrits en bachelier à HEC-Ulg.

Detailed reference viewed: 11 (1 ULg)
Full Text
See detailDroit parlementaire et électoral - Plan général du cours 2015-16
Bouhon, Frédéric ULg

Learning material (2016)

Ce document présente le plan général du cours de Droit parlementaire et électoral, destiné à des étudiants de Master en droit et de Master en sciences politiques à l'ULg.

Detailed reference viewed: 12 (1 ULg)
Peer Reviewed
See detailLes conseils scientifiques des institutions de conservation de la nature et de développement durable. Une approche par le vécu d’instances entre science et politique.
arpin, isabelle; cosson, arnaud; Denayer, Dorothée ULg et al

in SCIENCES ET BIODIVERSITÉ. Acteurs, enjeux, temporalités (2016)

Detailed reference viewed: 12 (0 ULg)
See detail50 ans d'exploration de la planète Mars
Stiepen, Arnaud ULg

Conference given outside the academic context (2016)

Detailed reference viewed: 16 (0 ULg)
Full Text
See detailCoeur de crèche
Courtejoie, Fabienne ULg

in A+ Architecture en Belgique (2016), 258

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailMapping of riparian invasive species with supervised classification of Unmanned Aerial System (UAS) imagery
Michez, Adrien ULg; Piégay, Hervé; Lisein, Jonathan ULg et al

in International Journal of Applied Earth Observation and Geoinformation (2016), 44

Riparian zones are key landscape features, representing the interface between terrestrial and aquatic ecosystems. Although they have been influenced by human activities for centuries, their degradation ... [more ▼]

Riparian zones are key landscape features, representing the interface between terrestrial and aquatic ecosystems. Although they have been influenced by human activities for centuries, their degradation has increased during the 20th century. Concomitant with (or as consequences of) these disturbances, the invasion of exotic species has increased throughout the world’s riparian zones. In our study, we propose a easily reproducible methodological framework to map three riparian invasive taxa using Unmanned Aerial Systems (UAS) imagery: Impatiens glandulifera Royle, Heracleum mantegazzianum Sommier and Levier, and Japanese knotweed (Fallopia sachalinensis (F. Schmidt Petrop.), Fallopia japonica (Houtt.) and hybrids). Based on visible and near-infrared UAS orthophoto, we derived simple spectral and texture image metrics computed at various scales of image segmentation (10,30, 45, 60 using eCognition software). Supervised classification based on the random forests algorithm was used to identify the most relevant variable (or combination of variables) derived from UAS imagery for mapping riparian invasive plant species. The models were built using 20% of the dataset, the rest of the dataset being used as a test set (80%). Except for H. mantegazzianum, the best results in terms of global accuracy were achieved with the finest scale of analysis (segmentation scale parameter = 10). The best values of overall accuracies reached 72%, 68%, and 97% for I. glandulifera, Japanese knotweed, and H. mantegazzianum respectively. In terms of selected metrics, simple spectral metrics (layer mean / camera brightness) were the most used. Our results also confirm the added value of texture metrics (GLCM derivatives) for mapping riparian invasive species. The results obtained for I. glandulifera and Japanese knotweed do not reach sufficient accuracies for operational applications. However, the results achieved for H. mantegazzianum are encouraging. The high accuracies values combined to relatively light model-inputs needed (delineation of a few umbels) make our approach a serious contender as a cost-effective tool to improve the field management of H. mantegazzianum. [less ▲]

Detailed reference viewed: 57 (18 ULg)
Full Text
See detailCharacterization of GPR101 transcripts structure, expression and signaling
Trivellin, G; Bjelobaba, I; Daly, Adrian ULg et al

in Abstract book - Keystone Symposia on GPCRs (2016, February)

Detailed reference viewed: 35 (2 ULg)
Full Text
Peer Reviewed
See detailDoing better in more complex patients: leading the way for QUIP.
Osnabrugge, Ruben L.; Kappetein, A. Pieter; Head, Stuart J. et al

in European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery (2016), 49(2), 397-8

See detailEmergency department bed coordination: burden and pitfalls.
GILLET, Aline ULg; Minder, Anaïs ULg; Nyssen, Anne-Sophie ULg et al

Conference (2016, January 30)

Detailed reference viewed: 14 (2 ULg)
See detailUn laboratoire d'auto-immunité paperless: mythe ou réalité?
LUTTERI, Laurence ULg

Conference (2016, January 29)

Detailed reference viewed: 9 (0 ULg)
Full Text
See detailOne day walk
Gantois, Gisele ULg

Scientific conference (2016, January 29)

One day walk Within my research I’m trying to find methods and tools to trace, unveil and map social & ecological values of built heritage in rural areas. In this contribution I’d like to discuss one of ... [more ▼]

One day walk Within my research I’m trying to find methods and tools to trace, unveil and map social & ecological values of built heritage in rural areas. In this contribution I’d like to discuss one of the methods I developed namely ‘A protocol for walking.’ The approach focuses on thinking through walking and drawing rather than an attempt to directly resolve or structure a problem. It aims at triggering curiosity not necessarily resulting in a solution or a conclusion while following a non-linear path. Walking acts like a starting trigger to investigate the cultural landscape and aims at generating and facilitating a thought process. It is therefore a way of reflecting. While walking, the act of watching closely can lead to real closeness and might help to gain insight into people’s and other living creatures attitudes, value system, concerns, motivations, aspirations, culture and behaviours and their interaction with space. As one needs the sharp eye to discover even the most trusted things, the act of drawing while walking becomes a way of observing. The drawing turns into a tool for the eye and makes one seeing things differently. The essential concept in this methodology is to approach the problem in an indirect way by postponing the problem. This is a way of tackling the uncertainty of the ‘ill-defined’ nature of the problem statement as values and significances cannot easily or clearly be defined. [less ▲]

Detailed reference viewed: 13 (0 ULg)
Full Text
See detailCo-simulation of Electromagnetic Transients and Phasor Models of Electric Power Systems
Plumier, Frédéric ULg

Doctoral thesis (2016)

This study investigates and improves methods used for the combination of phasor and electromagnetic transients time domain simulations of power systems. It involves the study of the protocols of ... [more ▼]

This study investigates and improves methods used for the combination of phasor and electromagnetic transients time domain simulations of power systems. It involves the study of the protocols of computation, the comparison of the different kinds of boundary conditions used to represent one sub-system when simulating the other, and the interfacing of phasor and electromagnetic transients models. The Nordic system has been used to realize the tests. Illustrative simulation results are reported for the case of a single and of multiple boundary buses between the sub-systems. [less ▲]

Detailed reference viewed: 14 (3 ULg)
Full Text
Peer Reviewed
See detailData-driven selection of the minimum-gradient support parameter in time-lapse focused electrical imaging
Nguyen, Frédéric ULg; Kemna, Andreas; Robert, Tanguy et al

in Geophysics (2016), 81(1), 1-5

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied ... [more ▼]

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied either on an arbitrary choice of this parameter or one based on the prior information, such as the expected contrast in the TL image. We have decided to select the MGS parameter using a line search based on the value of the TL data root-mean-square misfit at the first iteration of the nonlinear inversion procedure. The latter was based on a Gauss-Newton scheme minimizing a regularized objective function in which the regularization functional was defined by the MGS functional. The regularization parameter was optimized to achieve a certain target level, following the Occam principles. We have validated our approach on a synthetic benchmark using a complex and heterogeneous model and determined its effectiveness on electric tomography TL data collected during a salt tracer experiment in fractured limestone. Our results have determined that the approach was successful in retrieving the focused anomaly and did not rely on prior information. [less ▲]

Detailed reference viewed: 62 (10 ULg)