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See detailFrom virtual communities to project-driven mediated collectives. A comparison of Debian, Wikipedia and the Open Directory Project
Lejeune, Christophe ULg

in Francq, Pascal (Ed.) Collaborative Search and Communities of Interest. Trends in Knowledge Sharing and Assessment (2011)

The lay notion of a virtual community is not satisfactory as, strictly speaking, depicted phenomena (Internet-coordinated collectives) are neither communitarian nor virtual. Moreover, the idiom embraces ... [more ▼]

The lay notion of a virtual community is not satisfactory as, strictly speaking, depicted phenomena (Internet-coordinated collectives) are neither communitarian nor virtual. Moreover, the idiom embraces too wide a range of situations. For these reasons, we propose the narrower notion of mediated collectives. Previous ethnographies of Debian, Open Directory and Wikipedia help to define the notion based on empirical observation. [less ▲]

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See detailFrom vortex ratchets to rectification of self-propelled swimmers
Silhanek, Alejandro ULg

Conference (2014, May 05)

During the last decades, the mastering of flux quanta in superconductors has received a growing attention in the scientific community due to the large spectrum of possible analogies between fluxon physics ... [more ▼]

During the last decades, the mastering of flux quanta in superconductors has received a growing attention in the scientific community due to the large spectrum of possible analogies between fluxon physics and other apparently disconnected topics. For instance, flux avalanches in superconducting thin films resemble the crack propagation in solids or the electrical discharges during dielectric breakdown, whereas a flux lattice interacting with a periodic substrate could be thought of as a model of charge-density-waves. Among the most remarkable achievements of flux control we find the flux ratchets, a mechanism allowing to obtain average flux motion along a predefined direction with zero-mean excitations. This is a basic element for the development of more complex devices such as flux pumps and magnetic flux lenses. In this talk, I will show how the concepts of flux rectification has been extended to self-propelled particles, such as human sperm cells population, for which it is not necessary an external power supply to achieve separation, concentration or sorting of particles. [less ▲]

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See detailFrom wood charcoals to trees: pitfalls and successes of the taxonomic identification in tropical contexts
Morin-Rivat, Julie ULg; De Weerdt, Joëlle; Hubau, Wannes et al

Poster (2014, February 07)

So as to document the past history of tropical forests, several palaeoenvironmental proxies have been used. For instance, charcoals from soil deposits provide a local signal of the evolution of the ... [more ▼]

So as to document the past history of tropical forests, several palaeoenvironmental proxies have been used. For instance, charcoals from soil deposits provide a local signal of the evolution of the vegetation together with snapshots of human interactions with the environment. As charcoal analyses are rare in tropical contexts, here we aim at presenting the different aspects of charcoal studies through their pitfalls and successes as well as the needs for further research. Charcoal analysis (anthracology) is a discipline initially from archaeobotany that consists in the analysis of pieces of charred wood primarily found in archaeological contexts but also in natural soil layers. Its goal is to identified the species that burnt during the past through the observation of the charred wood structure. Indeed carbonization, as the incomplete combustion of the ligneous material, preserves the wood structure. The identifications obtained through microscopic observations allow assessing past uses of wood and human impacts on the forest landscape. However, issues typically tropical exist: difficulties related to fieldwork accessibility, to sampling, to soil processing so as to collect the charcoals, difficulties related to the taxonomic identification because of the huge number of species and of the limited number of anatomical descriptions. New developments are nonetheless emerging for Central Africa with original anatomical descriptions, identification protocols and visual keys. [less ▲]

Detailed reference viewed: 106 (21 ULg)
See detailFrom Wood to Roof Carpentry
Hoffsummer, Patrick ULg

in Hoffsummer, Patrick (Ed.) Roof Frames from the 11th to the 19th Century: Typology and Development in Northern France and in Belgium: Analysis of CRMH Documentation (2009)

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailFrom zero-energy building to zero-energy neighbourhood : urban form and mobility matter
Marique, Anne-Françoise ULg; Penders, Marine ULg; Reiter, Sigrid ULg

in Proceedings PLEA 2013 (2013, September)

Zero-Energy” Building (ZEB) is arousing more and more interest internationally, both in policies aiming at a more sustainable built environment (such as the European Directive PEB that will require, for ... [more ▼]

Zero-Energy” Building (ZEB) is arousing more and more interest internationally, both in policies aiming at a more sustainable built environment (such as the European Directive PEB that will require, for example, all new buildings to be “nearly Zero-Energy” Buildings (nZEB) by 2020) and in the scientific literature. Although Zero-Energy can be considered at different scales, this approach only adopts the perspective of the individual building and neglects phenomena linked to larger scales. Therefore, this paper aims at investigating the “Zero-Energy Neighbourhood” concept. It proposes a calculation method that takes into account three main topics: the energy consumption of buildings, the impact of the location on the energy consumption for daily mobility and the use of renewable energies. An application of this calculation method to two representative case studies (one urban neighbourhood and one suburban neighbourhood) is proposed. Main parameters that act upon the energy balance are highlighted and combined to propose concrete results to improve our built environment and move towards more sustainability. Hourly and monthly balances, the potential of “energy mutualisation” and smart grids are keys challenges that are of crucial importance in the scope of a Zero-Energy objective at the neighbourhood scale. [less ▲]

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See detailFrom ‘interference’ to post-national ‘solidarity’. Re-imagining transnational law in a post-crisis regionally integrated regulatory context
Van Cleynenbreugel, Pieter ULg

Scientific conference (2013, October 31)

In this presentation, I analysed to what extent EU institutional and substantive law promote solidarity. Distinguishing different types of solidarity, I concluded that the EU is rather agnostic to this ... [more ▼]

In this presentation, I analysed to what extent EU institutional and substantive law promote solidarity. Distinguishing different types of solidarity, I concluded that the EU is rather agnostic to this notion, which is problematic from both a political and a legal point of view. [less ▲]

See detail'Fromage d'heef, wat donder weer een Wael' : Franstalige straatroepen in het 17e/18e-eeuwse Brussel
Vromans, Joseph ULg

in De Caluwe, Johan; De Schutter, Georges; Devos, Magda (Eds.) et al Liber Amicorum Johan Taeldeman (2004)

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See detailFroment 2009: de bons rendements mais une piètre qualité boulangère
Sinnaeve, Georges; Gofflot, Sébastien; Chandelier, Anne et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2009, September 10)

Detailed reference viewed: 30 (0 ULg)
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See detailFroment 2010 : une réédition de 2006 ?
Sinnaeve, Georges; Gofflot, Sébastien; Chandelier, Anne et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailLe froment d'hiver
Herman, Jean-Luc; Vancutsem, Françoise ULg; Couvreur, Luc et al

in Céréales Gembloux - Informations avant les semis (2006, September 07)

Detailed reference viewed: 23 (3 ULg)
See detailLe froment d'hiver
Couvreur, Luc; Bodson, Bernard ULg; Herman, Jean-Luc et al

in Fumure et protection phytosanitaire des céréales: Informations avant les semis des céréales (1998, September 10)

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See detailLe froment d'hiver
Couvreur, Luc; Vancutsem, Françoise ULg; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2004, September 09)

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See detailLe froment d'hiver
Couvreur, Luc; Bodson, Bernard ULg; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2000, September 14)

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See detailLe froment d'hiver
Vancutsem, Françoise ULg; Couvreur, Luc; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2005, September 08)

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See detailLe froment d'hiver
Bodson, Bernard ULg; Vancutsem, Françoise ULg; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2001, September 13)

Detailed reference viewed: 7 (1 ULg)
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See detailLe froment d'hiver
Couvreur, Luc; Herman, Jean-Luc; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2002, September 12)

Detailed reference viewed: 21 (2 ULg)
See detailLe froment d'hiver
Bodson, Bernard ULg; Couvreur, Luc; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (1999, September 09)

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See detailLe froment d'hiver
Vancutsem, Françoise ULg; Couvreur, Luc; Bodson, Bernard ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2003, September 09)

Detailed reference viewed: 29 (3 ULg)
See detailLe froment d'hiver: conduite de sa culture
Cavelier, Marc; Couvreur, Luc; Crohain, Aimé et al

Book published by Presses agronomiques de Gembloux (1990)

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See detailFroments alternatifs et de printemps
Couvreur, Luc; Vancutsem, Françoise ULg; Bodson, Bernard ULg et al

in Fumure et protection phytosanitaire des céréales (2004, February 18)

Detailed reference viewed: 13 (0 ULg)