Using the underlying idea of the current-mode control, a new dynamical, sliding-mode control for the boost dc-dc converter is proposed. Such controller is easy to design, robust under load and input voltage variations, exhibits fast response, does not depend on…

Il est peu de notions aussi vastes que celle du non-savoir, mais le flou du caractère nécessairement négatif de sa définition s’accompagne tout de même du sentiment que la source de ce qui ne peut qu’être déterminé négativement par la…

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2008

Discussion of the natural sciences had a foundational role in the development of the sociology of race and racism, underpinning the claim that races should, if at all, be studied as social rather than natural phenomena. Whatever its strengths, the…

Assessment and analysis of AKST impacts; Agriculture productivity, production factors and consumption; impacts of akst on sustainability, through integrated technologies and the delivery of ecosystem services and public goods; Impacts of akst on livehoods, capacoty strenthening and empowerment; relationshipsbetween akst,…

ABSTRACT: Despite of all modem communications tools, difficulties of dialogue still exist between technicians and local community members when dealing with natural resources. This is related to many factors, from the predominantly technical formation of the teachers and researches to…

Reinforcement of learning in practice may help students learn bioscience but is contingent on adequate support from staff nurses. A 'snapshot' of the situation in practice was obtained (2006/7), with context from lecturers. In Stage 1, surgical care nurses were…

There is a significant world-wide apprehension concerning perceived deficiencies in university students’ performance and a resulting decrease of knowledge level and competency development. This paper analyses the benefits of using a portfolio as a means of evaluating student progress and…

Ce mémoire traite de la construction d’un espace social citoyen à partir de l’analyse du travail d’intervention de deux organismes locaux situés à Trou du Nord (Haïti). Il s’agit d’explorer les manières dont les membres se représentent et s’approprient leur…