Thermo-Physical Characteristics of Building Glass Wool Insulant: A Review of Experimental Results and Well-Adapted Techniques
Issue:
Volume 1, Issue 1, December 2017
Pages:
1-9
Received:
17 March 2017
Accepted:
5 April 2017
Published:
15 April 2017
DOI:
10.11648/j.ijse.20170101.11
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Abstract: There is need of experimental determination of thermo-physical properties of building materials to bridge the gap between theoretically prediction and real performance of buildings. Few references present structural, hydric and thermal properties of insulation materials in the same publication. This study aims to determine main thermo-physical characteritics of two glass wools. This publication wants also to review well-adapted experimental techniques because of their structural morphology. Inter-fiber space (pores) and fibers were studied by scanning electron microscope imaging (SEM) at the microscopic scale. The chemical composition of the fibers and binder will then be shown by coupling SEM to EDX detector. On macroscopic scale, the structural characteristics such as fiber diameter, the pore radius, total porosity, the surface area and the air permeability will be introduced. The hydraulic properties (such as sorption isotherm and vapor permeability) and thermal properties (conductivity and diffusivity) are then studied. Some influences between these thermo-physical parameters are presented. Relations between air permeability and humidity content against thermal will be analyzed.
Abstract: There is need of experimental determination of thermo-physical properties of building materials to bridge the gap between theoretically prediction and real performance of buildings. Few references present structural, hydric and thermal properties of insulation materials in the same publication. This study aims to determine main thermo-physical char...
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Integration Strategy for the Realization of an Adaptive Hypermedia System of Natural Dyes
Badraddine Aghoutane,
Khalid El Fazazy,
Omar El Bannay,
Noureddine El Makhfi
Issue:
Volume 1, Issue 1, December 2017
Pages:
10-16
Received:
14 March 2017
Accepted:
14 April 2017
Published:
24 May 2017
DOI:
10.11648/j.ijse.20170101.12
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Abstract: This work aims to develop a system allowing production, storage, management and dissemination of XML (eXtensible Markup Language) documents as well as chemical and analytical data (molecules, spectra, etc.) obtained within MED-COLOR-TECHNOLOGY project. Based on the study of user needs, modalities and systems for information access and retrieval, we have adopted a navigation system mode with the adaptive hypermedia systems. We have integrated and adapted the existing tools with new developed functionalities to ensure the full targeted functionality. Indeed, we have opted a component-based integration strategy using the plug-in mechanism and the Eclipse RCP (Rich Client Platform) framework. This architecture encompasses concepts that facilitate the adaptation of presentation, navigation, and content. Thus, the developed system is rich in functionality, extensible, portable, adaptable and evolves with user’s needs, preferences, and knowledge.
Abstract: This work aims to develop a system allowing production, storage, management and dissemination of XML (eXtensible Markup Language) documents as well as chemical and analytical data (molecules, spectra, etc.) obtained within MED-COLOR-TECHNOLOGY project. Based on the study of user needs, modalities and systems for information access and retrieval, we...
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A Spectrum Access with User Cooperation in Heterogeneous Cognitive Radio Networks
Issue:
Volume 1, Issue 1, December 2017
Pages:
17-20
Received:
12 March 2017
Accepted:
20 May 2017
Published:
14 July 2017
DOI:
10.11648/j.ijse.20170101.13
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Abstract: Cognitive radio system consists of multiple wireless accesses that cover overlapping area, and cognitive terminals that use one or more of the wireless accesses simultaneously. In cognitive radio systems, secondary users can share the spectrum with the primary user as long as the quality of service (QoS) of the primary system is guaranteed. However, the system throughput of the cognitive system will be limited when the QoS requirement is stringent. We had proposed the architecture of the cognitive radio system, the inter-system handover protocols and packet format designed to achieve fast handover among the radio systems.
Abstract: Cognitive radio system consists of multiple wireless accesses that cover overlapping area, and cognitive terminals that use one or more of the wireless accesses simultaneously. In cognitive radio systems, secondary users can share the spectrum with the primary user as long as the quality of service (QoS) of the primary system is guaranteed. However...
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