This paper applies the method of numerical simulation and field detection, and studied energy-saving insulation characteristics on the external wails of high-rise buildings in cold area, analyze and recommend the best...This paper applies the method of numerical simulation and field detection, and studied energy-saving insulation characteristics on the external wails of high-rise buildings in cold area, analyze and recommend the best arrangement of building and the most generous exterior wall insulation system suitable for cold area, and the degree of insulation materials were studied. The results show that： the mode preferred cold area is exterior insulation, insulation material made of extruded polystyrene board, frame structure filling wall preferred ceramsite hollow block.展开更多
Pakistan is at 12th number in the rank of rice production countries. Along with the production of 4,500 thousand metric tons of rice enormous quantity of rice husk is left as waste. Light weight thermal insulating mat...Pakistan is at 12th number in the rank of rice production countries. Along with the production of 4,500 thousand metric tons of rice enormous quantity of rice husk is left as waste. Light weight thermal insulating material was prepared from rice husk. Epoxy resin was used as a binder and was mixed with rice husk to give it strength, the sample was compressed at 7000 psi to produce cylindrical shape block. The thermal conductivity of the sample A, B, C and D of thickness 1, 2, 3 and 4 cm respectively was measured 0.0241, 0.0240, 0.239 and 0.0219 watts/m-k, which was lower than the common mortar by 51.74%, therefore it could be used in buildings and roof as an insulating material. This would be a suitable alternative which would not only save energy but also solve the environmental disposal problems as well. The results are very promising and we hope insulation material prepared would be useable in hot climate regions like Pakistan in buildings to prevent heat transfer.展开更多
Silicon-based planar neuroprobes are composed of silicon substrate,conducting layer,and insulation layers of SiO 2 or SiN membrane.The insulation layer is very important because it affects many key parameters of neupr...Silicon-based planar neuroprobes are composed of silicon substrate,conducting layer,and insulation layers of SiO 2 or SiN membrane.The insulation layer is very important because it affects many key parameters of neuprobes,like impedance,SNR(signal noise ratio),reliability,etc.Monolayer membrane of SiO 2 or SiN are not good choices for insulation layer,since defects and residual stress in these layers can induce bad passivation.In this paper a composite insulation structure is studied,with thermal SiO 2 as the lower insulation layer and with multilayer membrane composed of PECVD SiO 2 and SiN as the upper insulation layer.This structure not only solves the problem of residual stress but also ensures a good probe passivation.So it's a good choice for insulation layer of neuroprobes.展开更多
文摘This paper applies the method of numerical simulation and field detection, and studied energy-saving insulation characteristics on the external wails of high-rise buildings in cold area, analyze and recommend the best arrangement of building and the most generous exterior wall insulation system suitable for cold area, and the degree of insulation materials were studied. The results show that： the mode preferred cold area is exterior insulation, insulation material made of extruded polystyrene board, frame structure filling wall preferred ceramsite hollow block.
文摘Pakistan is at 12th number in the rank of rice production countries. Along with the production of 4,500 thousand metric tons of rice enormous quantity of rice husk is left as waste. Light weight thermal insulating material was prepared from rice husk. Epoxy resin was used as a binder and was mixed with rice husk to give it strength, the sample was compressed at 7000 psi to produce cylindrical shape block. The thermal conductivity of the sample A, B, C and D of thickness 1, 2, 3 and 4 cm respectively was measured 0.0241, 0.0240, 0.239 and 0.0219 watts/m-k, which was lower than the common mortar by 51.74%, therefore it could be used in buildings and roof as an insulating material. This would be a suitable alternative which would not only save energy but also solve the environmental disposal problems as well. The results are very promising and we hope insulation material prepared would be useable in hot climate regions like Pakistan in buildings to prevent heat transfer.
文摘Silicon-based planar neuroprobes are composed of silicon substrate,conducting layer,and insulation layers of SiO 2 or SiN membrane.The insulation layer is very important because it affects many key parameters of neuprobes,like impedance,SNR(signal noise ratio),reliability,etc.Monolayer membrane of SiO 2 or SiN are not good choices for insulation layer,since defects and residual stress in these layers can induce bad passivation.In this paper a composite insulation structure is studied,with thermal SiO 2 as the lower insulation layer and with multilayer membrane composed of PECVD SiO 2 and SiN as the upper insulation layer.This structure not only solves the problem of residual stress but also ensures a good probe passivation.So it's a good choice for insulation layer of neuroprobes.
