文献检索的基本原理英文版

See Chapter 1, 3

one of the basic principles of a literature search. The basic principles of literature search through the literature search is actually a search tool to find the information they need. The principle Simply put, the question is to identify and retrieve those stored in a retrieval system identification literature to compare two identification documents contain the same or need to retrieve the identification, put the logo features a literature retrieval system from in output, the literature is the literature search initially hit. This includes storage and retrieval of documents, as shown.

Comparison and selection

Stored procedure: the retrieval process ：

Document Information Search topic

Analysis Analysis

Document Information feature Information retrieval

questions

Bibliographic indexing Expression

Characterizat

ion

Express

Infor matio

Characteriz ation

Express

Information collection

Search Results

(Perfectly matched, related, unrelated) 2．Information storage and retrieval 1)

information storage

retrieval books

Abstract number: 020001

Title: the dye in production of the microcomputer control Author: zhang Ming; Chien-ming wang; LiuJianYe

Institution: Beijing institute of chemical (Beijing 100001) Literature sources (source) : chemical technology, 2002.33 (6) 32-36

Abstract: in this paper the dye production process in the microcomputer control, temperature control technology of application.

Key words: the dye production microcomputer feeding control temperature control

Classified number: TQ7 TP3

Literature characteristics, search fields, retrieval item: the title, author, institutions, literature sources, abstract, key words, classification

database

DN--02174618

AN--E

TI – IMPRIVING LIGHT – METAL CASTINGS.

AU – Vaccari , John A.

CS –American Machinist & Automated Manufacturing, New York, NY USA

SO – Am Mach Autom Manuf v 130 n 6 Jun 1986 p 87 –89

PY -- 1986

SN – 0886-0335

LA -- ENGLISH

DT -- JA^(Journal Article)

TC -- A^(Applications)

AB –With high –strength aluminum-and magnesium - casting alloys having reached the limit of their mechanical performance by conventional …. ^5 refs.

DE -- ALUMINUM AND ALLOYS – Casting

ID --^FOUNDRY PRACTICE - Permanent Mould

CC -- 541 (Aluminum & Alloys) ^534 (Foundry Practice)

2) information retrieval

A; Appearance characteristics

1. The title (title, the title, literature title) index

In the production of dyes microcomputer control-020001

2. The authors index

Zhang Ming-020001

Chien-ming wang see: zhang Ming

LiuJianYe see: zhang Ming

Family name * in former name last