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作者: Zhou, Yu Zhi2;Li, Se3;Li, Qian Shu1;Zhang, Shao Wen11 Beijing Inst Technol, Inst Chem Phys, Beijing 100081, Peoples R China. ;2 Beijing Inst Educ, Beijing 100044, Peoples R China. ;3 No Michigan Univ, Dept Chem, Marquette, MI 49855 USA.)

出处: JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM 2008 Vol.854 No.1-3 P40-45

关键词: TRANSITION-STATE THEORY; CARBOXYL FREE-RADICALS; PEROXYACETYL NITRATE; CAGE REACTIONS; RATE CONSTANTS; DECOMPOSITION; ACETYLOXYL; PEROXIDE; CH3O+CO; ACIDS

摘要: A theoretical study on the decarboxylation reaction of CH3CO2 radical at the MP2 level of theory has been carried out. It is found that the thermal re ...

作者: Yang, Aiying1;Qiao, Yaojun2;Sun, Yu-Nan11 Beijing Inst Technol, Optoelect Engn Dept, Beijing 100081, Peoples R China. ;2 Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Opt Commun & Lighwave Technol, Beijing 100876, Peoples R China.)

出处: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 2008 Vol.50 No.6 P1632-1634

关键词: FILTERS; POWER

摘要: Optical channel pre-emphasis equalization is experimentally researched for a 270 km 40 x 40 Gbit/s WDM transmission system with three EDFAs concatenat ...

作者: Tao, Ran1;Li, Xue-Mei1,2;Wang, Yue11 Beijing Inst Technol, Dept Elect Engn, Beijing 100081, Peoples R China. ;2 Beijing Elect Sci & Technol Inst, Elect & Informat Engn Dept, Beijing 100070, Peoples R China.)

出处: IEEE SIGNAL PROCESSING LETTERS 2008 Vol.15 P365-368

关键词: FOURIER-TRANSFORM; SIGNALS

摘要: In this letter, we generalize the fractional Hilbert transform of a real signal to get an analytic version which contains no negative spectrum while m ...

作者: Liu, Yi-Dong1;Gao, Chunqing1;Gao, Mingwei1;Qi, Xiaoqing1;Weber, Horst21 Beijing Inst Technol, Sch Informat Sci & Technol, Dept Optoelect, Beijing 100081, Peoples R China. ;2 Tech Univ Berlin, Inst Opt, D-10623 Berlin, Germany.)

出处: OPTICS COMMUNICATIONS 2008 Vol.281 No.14 P3636-3639

关键词: LIGHT; STATES; PHOTONS

摘要: A loop-like system with a Dove prism is used to generate a collinear superposition of two helical beams with different azimuthal quantum numbers in th ...

作者: Cao, Chuanbao1;Du, Hongli1;Xu, Yajie1;Zhu, Hesun1;Zhang, Taihua2;Yang, Rong21 Beijing Inst Technol, Res Ctr Mat Sci, Beijing 100081, Peoples R China. ;2 Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.)

出处: ADVANCED MATERIALS 2008 Vol.20 No.9 P1738-+

关键词: SILICON-NITRIDE; ALPHA-SI3N4; GROWTH; MECHANICS; FIBERS; THIN

摘要: Silicon nitride with helical structure was prepared on a large scale by CVD. On the microscale, these coiled Si3N4 ceramics still possess superelastic ...

作者: Luan ShangMin1,2;Dai GuoZhong21 Beijing Inst Technol, Sch Comp Sci & Technol, Beijing 100081, Peoples R China. ;2 Chinese Acad Sci, Inst Software, Beijing 100080, Peoples R China.)

出处: SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES 2008 Vol.51 No.3 P240-257

关键词: BELIEF CHANGE; PROGRAMMABLE APPROACH; LOGIC

摘要: One of the important topics in knowledge base revision is to introduce an efficient implementation algorithm. Algebraic approaches have good character ...

作者: Xu, Yougen1;Liu, Zhiwen1;Wong, Kainam Thomas2;Cao, Jinliang11 Beijing Inst Technol, Dept Elect Engn, Beijing 100081, Peoples R China. ;2 Univ Waterloo, Waterloo, ON N2L 3G1, Canada.)

出处: IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS 2008 Vol.44 No.4 P1291-1308

关键词: OF-ARRIVAL ESTIMATION; POLARIZATION ESTIMATION; SOURCE LOCALIZATION; STEERING VECTORS; ADAPTIVE ARRAY; ESPRIT; LOOPS

摘要: Herein derived are the lower and upper bounds for the number of linearly independent (2Q)th-order virtual steering vectors of an array of electromagne ...

作者: Chang Ping1;Shao Bin1;Wang Zhao-Ming1;Zou Jian11 Beijing Inst Technol, Dept Phys, Beijing 10081, Peoples R China.)

出处: CHINESE PHYSICS LETTERS 2008 Vol.25 No.3 P1098-1101

关键词: CRITERION

摘要: We consider a composite system of two remote mesoscopic Josephson junctions interacting locally with a two-mode non-classical cavity field and investi ...

作者: Zhang Jian1;Shao Bin1;Zou Jian11 Beijing Inst Technol, Dept Phys, Beijing 100081, Peoples R China.)

出处: COMMUNICATIONS IN THEORETICAL PHYSICS 2008 Vol.49 No.6 P1463-1467

摘要: By considering the intrinsic decoherence effect, we investigate the entropy exchange and entanglement in the interacting system of a superconducting c ...

作者: Fei, Wang1;Bing-Cong, Gou11 Beijing Inst Technol, Dept Phys, Beijing 100081, Peoples R China.)

出处: CHINESE PHYSICS B 2008 Vol.17 No.4 P1227-1230

关键词: HE

摘要: This paper uses the two-centre atomic orbital close-coupling method to study the ionization and the single electron capture in collision of highly cha ...

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