Progress in the development of a S RETGEM-based detector for an early forest fire warning system

In this paper we present a prototype of a Strip Resistive Thick GEM photosensitive gaseous detector filled with Ne and ethylferrocene vapours at a total pressure of 1 atm for an early forest fire detection system. Tests show that it is one hundred times more sensitive than the best commercial ultraviolet flame detectors and therefore, it is able to reliably detect a flame of 1.5x1.5x1.5 m3 at a distance of about 1km. An additional and unique feature of this detector is its imaging capability, which in combination with other techniques, may significantly reduce false fire alarms when operating in an automatic mode. Preliminary results conducted with air filled photosensitive gaseous detectors are also presented. The approach main advantages include both the simplicity of manufacturing and affordability of construction materials such as plastics and glues specifically reducing detector production cost. The sensitivity of these air filled detectors at certain conditions may be as high as those filled with Ne and EF. Long term test results of such sealed detectors indicate a significant progress in this direction. We believe that our detectors utilized in addition to other flame and smoke sensors will exceptionally increase the sensitivity of forest fire detection systems. Our future efforts will be focused on attempts to commercialize such detectors utilizing our aforementioned findings.Comment: Presented at the International Conference on Micropattern gaseous detectors, Crete, Greece, June 200

Prototype of an ontology-based approach for collaborative process specification

International Conference on Interoperability for Enterprise Software and Applications China, Beijing, PEOPLES R CHINA, APR 21-22, 2009International audienceA collaborative network is an open and agile system that evolves and adapts itself regularly along its life cycle. A possible way toward the facilitation of creating networks is the interoperability. This paper presents an ontology-based approach for dealing with the business level of the MDE (Model-Driven Engineering) approach for the interoperability. We use ontologies and deduction rules to automate the specification of BPMN (Business Process Modeling Notation) collaborative processes for business networks. For such purpose, we propose to work at the higher abstraction level than the CIM for capturing knowledge on collaboration from business partners. We use the existing knowledge about business processes from the MIT Process Handbook for moving down to the CIM. A prototype has been developed in order to support this approach. The prototype is a kind of a computer-aided design tool that uses a knowledge base

Cartography for designing collaborative processes

3rd International Conference on Interoperability for Enterprise Software and Applications (I-ESA 2007), Madeira Isl, PORTUGAL, MAR 27-30, 2007International audienceno abstrac

Contribution to knowledge-based methodology for collaborative process definition: Knowledge extraction from 6napse platform

4th International Conference on Interoperability for Enterprise Software and Applications (I-ESA 2008), Berlin, GERMANY, MAR 26-28, 2008International audienceThis paper presents a knowledge-based methodology dedicated to automate the specification of virtual organization collaborative processes. Our approach takes as input knowledge about collaboration coming from a collaborative platform called 6napse developed by EBM WebSourcing, and produces as output a BPMN (Business Process Modeling Notation) compliant process. The 6napse platform provides knowledge to instantiate the ontology to contribute to the collaborative process definition. The ontology is in the collaborative network domain, consisting in (i) collaboration attributes, (ii) description of participants and (iii) collaborative processes inspired from the enterprise Process Handbook (MIT)

Determination of the composition of homogeneous light element binary compounds using charged particle induced nuclear reactions

International audienceIn this paper we describe the application of nuclear reactions induced by charged particles for the instrumental analysis of homogeneous binary compounds. The principle of a very accurate method of calibration, the "average stopping power" method, is given. The overall accuracy of the analytical results is discussed, and examples of analysis are given

FG-iRODS : mutualisation d'expertise et infrastructure distribuée pour un accès transparent et hautement disponible aux données

National audienc