Ei期刊介绍

Ei期刊介绍
Ei Compendex Web（EI网络版）是《Ei Compendex》和《Ei PageOne》合并而成的Internet版本。

Ei来源期刊分三个档次：
（1）核心期刊， Compendex 数据库收录重点是下列主要工程学科：化学工程，土木工程；电子/电气工程，机械工程，冶金、矿业、石油工程，计算机工程和软件。

美国工程信息公司副总裁Katz认为：“这些是Compendex数据库的‘核心’领域。

”目前，核心期刊约有1000种；每期所有论文均被录入Compendex。

国内《金属学报》、《清华大学学报》等为核心期刊。

（2）选择期刊，一些学科领域的期刊是有选择地收录，包括：农业工程、工业工程、纺织工程、应用化学、应用数学、应用力学、大气科学、造纸化学和技术，高等学校工程类学报等。

Compendex 只选择与其主题范围有关的文章，并不是所以文章均被收录。

目前，选择期刊约1600种，国内以上学科的期刊大多数为选择期刊。

（3）扩充期刊，它只收录题录（Ei Page One）。

在Ei的扩充版中，约2800
种期刊。

国内期刊比较多。

什么论文是Ei核心版：
Ei Compendex 数据库文字出版物即为《工程索引》，图书馆四楼文献检索阅览室有原版的印刷本，凡是进入核心版本论文可以在印刷本检索到。

它收录的论文题录、摘要、标引主题词和分类号，并进行深加工；有没有主题词和分类号是判断论文是否被Compendex数据库正式收录的唯一标志（会议论文进入Compendex 数据库库）。

Compendex主要包括：论文标题（Title）；作者（Authors）；第一作者单位（First author affiliation）；英文文摘（Abstract）；论文所在期刊名称（Serial title）；卷（Volume）期（Issue）；论文页码（Pages）；分类码（Ei classification codes）；主题词（Ei main heading）；受控词（Ei controlled terms）；自由词（Uncontrolled terms）等等。

其中：分类码（Ei classification codes）；主题词（Ei main heading）；受控词（Ei controlled terms）；自由词（Uncontrolled terms）需要专业人员单独给出。

下列论文即为EI核心版（第一篇为期刊论文，第二篇为会议论文，）-type hydrogen storage alloy used as anodic materials in borohydride
AB
5
fuel cell
Wang, Lianbang (State Key Lab. Breed. Base Gn. C., Coll. of Chem. Eng.
and Materials, Zhejiang University of Technology); Ma, Chunan; Sun, Yuanming; Suda, Seijiro Source: Journal of Alloys and Compounds, v 391, n 1-2, Apr 5, 2005, p 318-322
ISSN: 0925-8388 CODEN: JALCEU
Publisher: Elsevier Ltd
Abstract: Fuel cells using borohydride as the fuel have received much attention because of the high potential and power density. In this work, AB
5
-type hydrogen storage alloy used as the anodic material instead of the noble metal in a borohydride fuel cell (BFC) has been investigated.
LmNi
4.78Mn
0.22
(where Lm is La-richened mischmetal) alloy shows high
electrochemical catalytic activity in both the discharge process and the
hydrogen generation process. The generation rate of hydrogen increases with increasing discharge current density. The utilization of the fuel (KBH
4
-KOH solution) also increases with increasing discharge current density. It suggests that high-rate discharging is useful to improve the
utilization of the fuel. In order to use the AB
5
-type hydrogen storage alloy in a borohydride fuel cell, it is necessary to improve the utilization of the fuel further. © 2004 Elsevier B.V. All rights reserved.
(12 refs.)
Ei controlled terms: Lanthanum alloys | Fuel cells | Boron compounds | Catalyst activity | Electrochemistry | Catalysis | Electric discharges | Surface treatment | Hydrolysis | Oxidation | Anodes | Solutions | Phosphoric acid | Polyethylenes | Current density | Scanning electron microscopy | X ray diffraction
Face recognition based on improved euclid norm
Cao, Wen-Ming (Zhejiang University of Technology); Yuan, Yuan; Cai, Wei-Wei; Wang, Shou-Jue Source: International Conference on Signal Processing Proceedings, ICSP, v 2, 2004 7th International Conference on Signal Processing Proceedings (ICSP'04), 2004, p 934-937 Conference: 2004 7th International Conference on Signal Processing Proceedings (ICSP'04), Aug 31-Sep 4 2004, Beijing, China Sponsor:Chinese Institute of Electronics (CIE);IEEE Signal Processing Society
(IEEE-SPS);Institute of Electrical Engineers (IEE);Union Radio Scientifique Internationale (URSI);IEEE Beijing Section
Publisher: Institute of Electrical and Electronics Engineers Inc. Abstract: In this paper, we propose a new face recognition algorithm based on improved Euclid norm. The method, compared with conventional algorithm, has an improved recognition rate for face images with large variation in lighting direction. Testing our system on Yale face database, the
recognition rate is 98.8%, which, proves the face recognition algorithm is efficient. (7 refs.)
Ei controlled terms: Face recognition| Image analysis| Database systems | Identification (control systems)| Neural networks| Lighting| Vectors | Algorithms
什么论文是EI网络版（Ei Page One）：
Ei Page One 是EI的扩充版，只是题录。

一般不录入文摘，不标引主题词和分类号。

有的Page One也带有摘要，但未标引主题词和分类号。

带有文摘不一定算做正式进入Compendex数据库。

Ei Page One主要包括：论文标题（Title）；作者（Authors）；论文所在期刊名称（Serial title）；卷（Volume）期（Issue）；论文页码（Pages）；部分数据带有英文文摘和第一作者单位（First author affiliation）。

不需要任何专业人员再做工作。

下列论文即为EI网络版（第一篇为有文摘论文，第二篇为没有作者单位也没有文摘论文，第三篇为有作者单位没有文摘论文）
Strain distribution of low-dimensional semiconductor materials
Zhou, Wang-Min(Coll. of Mech. and Elec. Eng., Zhejiang Univ. of Technol.); Wang, Chong-Yu Source: Wuli Xuebao/Acta Physica Sinica, v 53, n 12, December, 2004, p 4308-4313 Language: Chinese
ISSN: 1000-3290 CODEN: WLHPAR
Publisher: Science Press
Abstract: The stress and strain distributions of simplified and idealized two-, one- and zero-dimensional semiconductor materials, i.e. quantum well, quantum wire and quantum dot are investigated based on the isotropic theory of elasticity, and the differences among the stress, strain and strain energy distributions for the materials are discussed. The results can help us to understand qualitatively the stress, strain and strain energy distributions of the more complicated shapes and structures of low-dimensional semiconductor materials. (16 refs.)
Database: Compendex
Preparation and sustained release of a new water-soluble drug carrier system Captopril/Si-MCM-41
Qu, Feng-Yu; Zhu, Guang-Shan; Huang, Shi-Ying; Li, Shou-Gui; Qiu, Shi-Lun Source: Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities, v 25, n 12, December, 2004, p 2195 Language: Chinese ISSN: 0251-0790 CODEN: KTHPDM
Publisher: Higher Education Press
Database: Compendex
Research on pulse combustion drying and its characteristics of heat transfer
Li, Baoguo(Shanghai Univ of Science and Technology); Liu, Xiangdong; Cao, Chongwen Source: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, v 16, n 6, Nov, 2000, p 11-14 Language: Chinese
ISSN: 1002-6819 CODEN: NGOXEO
Database: Compendex。