GE Advanced Materials公司宣布将其光扩散膜系列LCD背光应用光学镀膜扩展到完整的显示器产品，用于电视、笔记本电脑、计算机监视器和汽车GPS显示器等应用。这些材料为LCD背光模块提供了顶部和底部扩散膜产品，以帮助增强苛刻环境阅读...GE Advanced Materials公司宣布将其光扩散膜系列LCD背光应用光学镀膜扩展到完整的显示器产品，用于电视、笔记本电脑、计算机监视器和汽车GPS显示器等应用。这些材料为LCD背光模块提供了顶部和底部扩散膜产品，以帮助增强苛刻环境阅读条件下的性能。光照扩散膜将公司的Lexan光学品质树脂技术与10000等级低应力、光学品质清洁室内环境相结合。展开更多
A major goal of research in biotechnology and nanotechnology is to develop assemblies of novel biomaterials that can be used in analytical, industrial, and therapeutic applications. The synthesis of DNA （oligodeoxyri...A major goal of research in biotechnology and nanotechnology is to develop assemblies of novel biomaterials that can be used in analytical, industrial, and therapeutic applications. The synthesis of DNA （oligodeoxyribonucleotide） has been described containing the biaryl-type nucleoside surrogates, 6-deamino-2＇-deoxy-6-（l-naphthyl） adenosine （AN） and 6-deamino-2＇-deoxy-6-（1-pyrenyl） adenosine （AP）. It is found that incorporation of multiple ATM or AP residues in the middle of DNA duplexes does not significantly destabilize the duplexes and that the fluorescence intensities of the oligonucleotides containing AN or Ap significantly increases in the duplexes formed.展开更多
A new scheduling algorithm, which aims to provide proportional and controllable QoS (Quality of Service) in terms of burst loss probability for OBS (Optical Burst Switching) networks, is proposed on the ba- sis of a s...A new scheduling algorithm, which aims to provide proportional and controllable QoS (Quality of Service) in terms of burst loss probability for OBS (Optical Burst Switching) networks, is proposed on the ba- sis of a survey of QoS schemes in current OBS networks. With simulations, performance analysis and com- parisons are carried out in detail. The results show that, in the proposed scheme, burst loss probabilities are proportional to the given factors and the control of QoS performance can be achieved with better performance. This scheme will be beneficial to the OBS network management and the tariff policy making.展开更多
The pyrolysis of isopsoralen was studied by synchrotron vacuum ultraviolet photoionization mass spectrometry at low pressure. The pyrolysis products were detected at different photon energies, the ratios of products t...The pyrolysis of isopsoralen was studied by synchrotron vacuum ultraviolet photoionization mass spectrometry at low pressure. The pyrolysis products were detected at different photon energies, the ratios of products to precursor were measured at various pyrolysis temperatures. The experimental results demonstrate that the main pyrolysis products are primary CO and sequential CO elimination products （C10H602 and C9H60）. The decomposition channels of isopsoralen were also studied by the density functional theory, then rate constants for competing pathways were calculated by the transition state theory. The dominant decom- position channels of isopsoralen and the molecular structures for corresponding products were identified by combined experimental and theoretical studies.展开更多
文摘A major goal of research in biotechnology and nanotechnology is to develop assemblies of novel biomaterials that can be used in analytical, industrial, and therapeutic applications. The synthesis of DNA （oligodeoxyribonucleotide） has been described containing the biaryl-type nucleoside surrogates, 6-deamino-2＇-deoxy-6-（l-naphthyl） adenosine （AN） and 6-deamino-2＇-deoxy-6-（1-pyrenyl） adenosine （AP）. It is found that incorporation of multiple ATM or AP residues in the middle of DNA duplexes does not significantly destabilize the duplexes and that the fluorescence intensities of the oligonucleotides containing AN or Ap significantly increases in the duplexes formed.
基金Supported by National Key Project of 863 Program of China (No.2002AA122021), Scientific Research Fund of Chongqing Municipal Education Commission (No.040504 and KJ050504), and Chongqing Science and Technology Commission (CSTC, 2005BB2066).
文摘A new scheduling algorithm, which aims to provide proportional and controllable QoS (Quality of Service) in terms of burst loss probability for OBS (Optical Burst Switching) networks, is proposed on the ba- sis of a survey of QoS schemes in current OBS networks. With simulations, performance analysis and com- parisons are carried out in detail. The results show that, in the proposed scheme, burst loss probabilities are proportional to the given factors and the control of QoS performance can be achieved with better performance. This scheme will be beneficial to the OBS network management and the tariff policy making.
文摘The pyrolysis of isopsoralen was studied by synchrotron vacuum ultraviolet photoionization mass spectrometry at low pressure. The pyrolysis products were detected at different photon energies, the ratios of products to precursor were measured at various pyrolysis temperatures. The experimental results demonstrate that the main pyrolysis products are primary CO and sequential CO elimination products （C10H602 and C9H60）. The decomposition channels of isopsoralen were also studied by the density functional theory, then rate constants for competing pathways were calculated by the transition state theory. The dominant decom- position channels of isopsoralen and the molecular structures for corresponding products were identified by combined experimental and theoretical studies.
