作者： Zhang, Gen Lin^1,2;Wang, Cui Wei¹;Li, Chun¹ （¹ Beijing Inst Technol, Sch Life Sci, Beijing 100081, Peoples R China. ;² Shihezi Univ, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Shihezi 832003, Peoples R China.）

出处： BIOTECHNOLOGY LETTERS 2012 Vol.34 No.8 P1519-1523

关键词： ENHANCED 2,3-BUTANEDIOL PRODUCTION; ESCHERICHIA-COLI; GENE; PATHWAY

摘要： The budC gene encoding the meso-2,3-BDH from Klebsiella pneumoniae XJ-Li was expressed in E. coli BL21 (DE3) pLys. Hypothetical amino acid sequence al ...

作者： Yu, Zhinong¹;Leng, Jian^1,2;Xue, Wei¹;Zhang, Ting¹;Jiang, Yurong¹;Zhang, Jie¹;Zhang, Dongpu¹ （¹ Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China. ;² Tianjin Jinhang Inst Tech Phys, Lab Opt Thin Films, Tianjin 300192, Peoples R China.）

出处： APPLIED SURFACE SCIENCE 2012 Vol.258 No.7 P2270-2274

关键词： ANODE; AG

摘要： ZnS/Ag/ZnS (ZAZ) multilayer films were prepared on polyethene terephthalate (PET) by ion beam assisted deposition at room temperature. The structural, ...

作者： Yu, Shiwei^1,2;Zhu, Kejun¹;He, Yong³ （¹ China Univ Geosci, Sch Econ & Management, Wuhan 430074, Peoples R China. ;² Beijing Inst Technol, Ctr Energy & Environm Policy Res, Beijing 100181, Peoples R China. ;³ Guangdong Univ Technol, Sch Management, Guangzhou 510520, Guangdong, Peoples R China.）

出处： NEURAL COMPUTING & APPLICATIONS 2012 Vol.21 No.6 P1391-1402

关键词： GENETIC ALGORITHMS; NEURAL-NETWORKS; CUTOFF GRADE; CROSSOVER; PREDICTION; PARAMETERS; POLICY; MODEL

摘要： One of the most important aspects of metal mine design is to determine the optimum cut-off grades and milling grades which relate to the economic effi ...

作者： Dai Danghui²;Li Fengyan¹;Zhao Tianbo³ （¹ Beijing Inst Petrochem Technol, Dept Chem Engn, Beijing 102617, Peoples R China. ;² Beijing Univ Chem Technol, Dept Chem Engn, Beijing 100029, Peoples R China. ;³ Beijing Inst Technol, Dept Coll Sci, Beijing 100081, Peoples R China.）

出处： CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY 2012 Vol.14 No.1 P15-19

关键词： SURFACTANTS; SYSTEMS; OIL

摘要： The paraffin wax microemulsion was prepared from fully refined paraffin wax No.58-60 in the presence of a nonionic surfactant and an anionic surfactan ...

作者： Gao, Zhe¹;Liao, Xiaozhong¹ （¹ Beijing Inst Technol, Sch Automat, Beijing 100081, Peoples R China.）

出处： JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS 2012 Vol.23 No.1 P145-153

关键词： DERIVATIVES; SYSTEMS; DESIGN

摘要： A rational approximation method of the fractional-order derivative and integral operators is proposed. The turning frequency points are fixed in each ...

作者： Wu Wen-jun^1,2;Zhu Le-mei²;Xiang Yu¹;He Li-jun³ （¹ GuangXi Univ Technol, Dept Automobile Engn, Liuzhou 545006, Peoples R China. ;² Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China. ;³ Nanchang Hangkong Univ, Coll Civil Engn & Architecture, Nanchang 330063, Peoples R China.）

出处： JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY 2012 Vol.26 No.11 P3533-3538

关键词： CONTACT PROBLEM

摘要： The leaf spring is a representative type of laminated structure. Based on the linear theories of curve beams, the first derivatives of the leave's sta ...

作者： Cheng, Cheng¹;Sheng, Li¹;Li, Ze Sheng^1,2 （¹ Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Nat Sci Res Ctr, Dept Chem, Harbin 150080, Peoples R China. ;² Beijing Inst Technol, Sch Chem, Beijing 100081, Peoples R China.）

出处： MOLECULAR PHYSICS 2012 Vol.110 No.5 P293-296

关键词： RARE-GAS; MOLECULES; BOND; CHEMISTRY; ATOMS; DONOR; KR

摘要： The currently synthesized noble gas (Ng) molecules are mostly xenon or krypton compounds. HArF is the only experimentally prepared compound containing ...

作者： Zhang, Yongqian¹;Li, Yujuan¹;Zhang, Zhensong¹;Lai, Chengjun¹;Deng, Yulin¹ （¹ Beijing Inst Technol, Sch Life Sci, Beijing 100081, Peoples R China.）

出处： ANALYTICAL METHODS 2012 Vol.4 No.7 P2027-2030

关键词： DOPAMINE; NEUROTOXINS

摘要： Salsolinol (Sal) and N-methylsalsolinol (NMSal) are endogenous neurotoxins in the brain, which are the key causative agents of the death of dopaminerg ...

作者： Liu, Zongjian¹;Ullah, Kaleem¹;Su, Liping¹;Lv, Fang¹;Deng, Yulin¹;Dai, Rongji¹;Li, Yujuan¹;Zhang, Yukui¹ （¹ Beijing Inst Technol, Sch Life Sci, Beijing 100081, Peoples R China.）

出处： JOURNAL OF MATERIALS CHEMISTRY 2012 Vol.22 No.36 P18753-18756

关键词： TEMPERATURE-RESPONSIVE CHROMATOGRAPHY; N-ISOPROPYLACRYLAMIDE; POLYMER BRUSH; MONOLITH; POLY(N-ISOPROPYLACRYLAMIDE); COLUMN

摘要： A new thermoresponsive boronate affinity chromatographic material, P(N-isopropylacrylamide-4-vinylphenylboronic acid) P(NIPAAm-co-VPBA) grafted silica ...

作者： Dong, C. Y. （¹Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.）

出处： COMPUTATIONAL MECHANICS 2012 Vol.49 No.3 P309-318

关键词： CIRCULAR NANO-INHOMOGENEITIES; DEPENDENT ELASTIC STATE; FINITE SPHERICAL DOMAIN; STRESS-CONCENTRATION; OPTICAL-PROPERTIES; INTERFACE STRESS; ESHELBY TENSORS; SURFACE STRESS; FIELD; INCLUSIONS

摘要： An integral equation formulation of two- and three-dimensional infinite isotropic medium with nanoscale inhomogeneities is presented in this paper. Th ...