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STUDIES ON THE VOLTAMMETRIC BEHAVIOR OF EU(Ⅲ)-ALDOPENTOSE AND EU(Ⅲ)-D-RIBOSE-L-AMINO ACIDS COMPLEXES

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Chinese Chemical Letters 1993年第6期4卷 531-534页

作者： Liang XU Hong Xiang WANG Xiao Xia GAO department of Chemistry,Peking university beijing,100871

The rate of voltammetric reduction of Eu(Ⅲ)in acetate solution was increased by the formation of a complex with ribose,lyxose or *** a ternary complex of Eu(Ⅲ)-D-ribose-L-phenylanaline formed on the surface of mercu... 详细信息

关键词： Eu STUDIES ON THE VOLTAMMETRIC BEHAVIOR OF EU D-RIBOSE-L-AMINO ACIDS COMPLEXES

A PRELIMINARY STUDY ON RURAL INDUSTRIALIZATION IN china

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Journal of Geographical Sciences 1996年第2期6卷 15-34页

作者： Fan Jie(Institute of Geography, CAS, beijing 100101People’s Republic of china )Wolfgang Taubmann(Geography department, Bremen university, 28334 Bremen)GermanyFan Gongzheng(Population Research Institute, ECNU, Shanghai 200062)People’s Republic of china Inst of Geography CAS Beijing 100101 China

In recent ten years, the economic structure in rural china has gradually changed and industry become the main body in rtral economy. Based on detailed field work in seven towns of six provinces, this article focuses on the mechanism of rural development, the role the rural industry played in rural modemization, the regional differences in rural industrialization level and industrial structure, as well as mutual relationship between rural industrial development and population migration,and rural urbanization.

关键词： town rural industrialization rural enterprise china

Commuting Involutions with Fixed Point Set of Variable Codimension

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Acta Mathematica Sinica,English Series 2001年第3期17卷 425-430页

作者： Yan Ying WANG Zhen De WU Zhao Jing MENG department of Mathematics,Hebei normal university,Shijiazhuang 050016.P.R.china E-mail:Wang Yangying@*** department of Mathematics Hebei Normal University Shijiazhuang 050016 P. R. China

Special generators of the unoriented cobordism ring MO* are constructed to determine some groups Jn,kl1,l2,…,lm of cobordism classes in MOn containing a representative Mn admitting a （Z2）k-action with the fixed poi... 详细信息

关键词： Indecomposable class Fixed point set Projective space bundle (Z2)k-action

Experimental Study on Optic Fiber Sensing System for Simultaneous Measurement of Curent and Voltage Using One Lo-Bi Fiber

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Chinese Journal of Lasers 1998年第6期 6-11页

作者： WANG Zhaobing LIAO Yanbiao (Electronics Engineering department, Tsinghua university, beijing 100084, china)CHEN Xiangxun (Electric Power Research Institute, beijing 100085, china) Received March 2, 1998 Revised manuscript received May 28, 1998

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｅｌａｓｔｆｅｗｙｅａｒｓ，ｃｕｒｅｎｔａｎｄｖｏｌｔａｇｅｍｅａｓｕｒｅｍｅｎｔｓｙｓｔｅｍｓｂａｓｅｄｏｎｏｐｔｉｃａｌｄｅｖｉｃｅｓｈａｖｅｂｅｅｎｄｅｖｅｌｏｐｅｄ．Ａｎｕｍ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｅｌａｓｔｆｅｗｙｅａｒｓ，ｃｕｒｅｎｔａｎｄｖｏｌｔａｇｅｍｅａｓｕｒｅｍｅｎｔｓｙｓｔｅｍｓｂａｓｅｄｏｎｏｐｔｉｃａｌｄｅｖｉｃｅｓｈａｖｅｂｅｅｎｄｅｖｅｌｏｐｅｄ．Ａｎｕｍｂｅｒｏｆｑｕｉｔｅｄｉｆｅｒｅｎ...

关键词： simultaneous measurement of current and voltage optic fiber sensor Lo Bi fiber

工作记忆容量和加工速度在归纳推理能力老化中的作用

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心理科学 2004年第3期27卷 536-539页

作者：彭华茂申继亮王大华北京师范大学发展心理研究所北京100875

利用结构方程模型考察了工作记忆容量和加工速度在归纳推理老化中的作用。样本为217名社区老人。结果发现:(1)工作记忆容量在归纳推理老化中具有重要作用,语音环路和视空间初步加工系统在推理过程巾参与程度相当。(2)在年龄和归纳推理... 详细信息

利用结构方程模型考察了工作记忆容量和加工速度在归纳推理老化中的作用。样本为217名社区老人。结果发现:(1)工作记忆容量在归纳推理老化中具有重要作用,语音环路和视空间初步加工系统在推理过程巾参与程度相当。(2)在年龄和归纳推理能力之间存在年龄--加工速度--工作记忆容培--归纳推理这样一条层级关系,年龄、加工速度和工作记忆容量共同解释归纳推理中57％的变异。

关键词：工作记忆容量归纳推理能力加工速度年龄

Study on a Model of Fluid Dynamic Systems

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Systems Science and Systems Engineering 1996年第4期6卷 485-487页

作者： LI Minshan LU Xianqing MEI Shengwei DONG Yali(Northern Jiaotong university, department of Mathematics, 100044, beijing Tsinghua university, department of Mathematics, 100084, beijing Academia Sinica, Institute of Systems Science, 100080, beijing. Xinji

The work studies the travelling wave solution of the KdV-Burgers equation. By summarizing the works in recent years, the explicit travelling wave solution is introduced.

关键词： dissipation dispersion nonlinear asymptotic expansion travelling wave solution

Adsorption and adhesion of blood proteins and fibroblasts on multi-wall carbon nanotubes

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Science china(Life Sciences) 2009年第5期52卷 479-482页

作者： LI DeJun1, YUAN Li1, YANG Ying1, DENG XiangYun1, Lü XiaoYing2, HUANG Yan2, CAO Zheng2, LIU Hao3 & SUN XueLiang3 1 College of Physics and Electronic Information Science, Tianjin normal university, Tianjin 300074, china 2 State Key Laboratory of Bioelectronics, Southeast university, Nanjing 210096, china 3 department of Mechanical & Materials Engineering, university of Western Ontario, London, ON, Canada College of Physics and Electronic Information Science Tianjin Normal University Tianjin 300074 China State Key Laboratory of Bioelectronics Southeast University Nanjing 210096 China department of Mechanical & Materials Engineering University of Western Ontario London ON Canada

This article concerns the investigation of blood protein adsorption on carbon paper and multi-wall carbon nanotubes (MWCNTs). Mouse fibroblast cell adhesion and growth on MWCNTs was also studied. The results showed that fibrinogen adsorption on carbon paper was much lower than that on MWCNTs, which means that platelets readily aggregate on the surface of MWCNTs. Mouse fibroblast cells implanted on MWCNTs tended to grow more prolifically than those implanted on carbon paper. The cell concentration observed on MWCNTs increased from 1.2×105/mL for a single day culture to 2×105/mL for a 7-day culture. No toxicity reaction was observed during the culturing period. These results indicated that MWCNTs possessed excellent tissue compatibility.

关键词： multi-wall carbon nanotubes cell adhesion protein adsorption toxicity tissue compatibility

E-Commerce Marketing Strategy on the Basis of Customer Value and Customer Loyalty

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E-Commerce Marketing Strategy on the Basis of Customer Value...

Preparation of grain size controlled boron-doped diamond thin films and their applications in selective detection of glucose in basic solutions

2011 International Conference on Business Management and Electronic Information(BMEI 2011)

作者： Gang Fang Xiongjian Liang department of Economics and Management beijing university of Posts and Telecommunications beijing 100876 china

The enterprise e-commerce marketing strategy is developed on the basis of a scientifically-based segmentation of its customers,and the key way to its profits is to try to build and maintain the customer *** this paper brings together customer-value and customer-loyalty to segment ecommerce customers,and then establishes a customersegmentation-matrix of customer-value and customer-loyalty,and finally it explores the respective characteristics of different types of customers and proposes that enterprises should take different e-commerce marketing strategies to different types of customers.

关键词： customer value customer loyalty e-commerce marketing

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Science china Chemistry 2010年第6期53卷 1378-1384页

作者： ZHAO JianWen1,2,WANG JinLiang3,ZHI JinFang3 & ZHANG ZhiMing4 1College of Chemistry and Chemical Engineering,Jishou university,Jishou 416000,china 2Schools of Materials Science and Engineering,Nanyang Technological university,639798,Singapore 3Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering,Technical Institute of Physics and Chemistry & Graduate university of Chinese Academy of Sciences,beijing 100080,china 4Research Institute of Micro-Nano Science and Technology,Shanghai Jiao Tong university,Shanghai 200030,china 1. College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China2. Schools of Materials Science and Engineering Nanyang Technological University 639798 Singapore Singapore3. Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering Technical Institute of Physics and Chemistry & Graduate University of Chinese Academy of Sciences Beijing 100080 China4. Research Institute of Micro-Nano Science and Technology Shanghai Jiao Tong University Shanghai 200030 China

Boron-doped diamond (BDD) thin films with different crystal grain sizes were prepared by controlling the reacting gas pressure using hot filament chemical vapor deposition (HFCVD).The morphologies and structures of the prepared diamond thin films were characterized by scanning electron microscopy (SEM) and Raman *** electrochemical responses of K4Fe(CN)6 on different BDD electrodes were *** results suggested that electron transfer was faster at the boron-doped nanocrystalline diamond (BDND) thin film electrodes in comparison with that at other BDD thin film *** prepared BDD thin film electrodes without any modification were used to directly detect glucose in the basic *** results showed that the as-prepared BDD thin film electrodes exhibited good selectivity for detecting glucose in the presence of ascorbic acid (AA) and uric acid (UA).The higher sensitivity was observed on the BDND thin film grown on the boron-doped microcrystalline diamond (BDMD) thin film surface,and the linear response range,sensitivity and the low detection limit were 0.25–10 mM,189.1 μA mmol-1 cm-2 and 25 μM (S/N=3) for glucose in the presence of AA and UA,respectively.

关键词： diamond thin films electrochemical properties selective glucose detection