Question 2: How to write literature retrieval? Ask for examples! We have just finished this course, finished the paper, and attached the questions and answers we asked.
Job: Manual retrieval:
1. Briefly describe what kinds of documents can be classified according to different publishing forms? Use the library you know to find all kinds of examples.
Answer: 1 1 species.
Publications: Research on Polymer Chemistry and Technology
Periodicals: China Textile and China Chemical Fiber.
Newspapers: Science Times and Science and Technology Daily.
Yearbooks: China Philosophy Yearbook and China Statistical Yearbook.
Patent Literature: China Patent Index.
Conference Literature: Essays on Economic Reform and Social Development of Contemporary China Academic Research Association.
Standard Literature: Compilation of Chinese National Standards
Thesis title: Postgraduate Thesis of Fine Chemical Engineering of Beifu Textile Machinery.
Science and Technology Report: China City Report
* * * Publication: Beijing People's Bulletin.
Product samples: the compilation of textile product standards and the complete works of petrochemical products.
2. According to the topic of the paper, find out the search words, translate them into English, use foreign periodical index, volume index or cumulative index to search, list the results, and give the abstract number, article title, literature type, publication name and publication time of the literature.
A: Journal of Applied Polymer Science.
Vol. 105, No.6, pp. 3748-3756
Online release:11June 2007
Copyright 2008 Wiley Periodical Company, Wiley Company.
Research progress on flame retardant properties of new halogen-free phosphorus-doped silica films on fabrics
Aysun Cireli 1 *, nurhanar1,M. Faruk Ebeoglugil 2, Isil Kayatekin 2, Bengi Kutlu 1, o * * ancul ha2, Erdal celik 2.
1 Department of Textile Engineering, Faculty of Engineering, Bolnova Dokuz Eylul University, Izmir, Turkey, zip code 35 100.
2 Department of Materials and Metallurgical Engineering, Faculty of Engineering, Kuzler University, Turkey, 35 160
E-mail: Aysun cire Li([ email protected])
* Correspondence with Aysun Cireli, Textile Engineering Department, Faculty of Engineering, Dokuz Eylul University, Izmir, Turkey.
keyword
Thermal Properties of Thin Film Sol-gel Flame Retardant Nanolayers
Received:18 July 2006; Date of acceptance: 7 March 2007
3. Use the 76-volume Index of Chemical Substances to find the literature about the method of producing phenol from bromobenzene, list the results, and give the abstract number, article title, literature type, publication name and publication time of the literature.
A: It comes from bromobenzene. 86: 155299 d。
4. Using molecular formula index, search the patent literature of "Terephthalic acid refining method", list the results, and give the abstract number. & gt
Question 3: What are the specific steps of literature retrieval? Firstly, analyze the subject, make clear the search terms, and inquire about the subject range, language, literature type, etc. , and then select and determine the detection tool (database), enter the search word or search to search, browse the hit records, select the required records, and output the results.
Question 4: How to carry out literature retrieval? I think the most important thing in literature retrieval is to make clear the purpose of retrieval and know what you need and what you don't need, that is, to have a general understanding of the theme before retrieval; Then, to choose the right search word, use the appropriate search strategy. Finally, it is necessary to read through all the retrieved documents first, and after further understanding of the subject, accurately select the documents that are helpful to the subject for careful study. In a word, literature retrieval is not an overnight process, it should be a process that runs through the research of this discipline.
There are books with literature retrieval, you can go and have a look.
Question 5: General steps and key points of information retrieval.
First of all, analyze the research topic and make clear the retrieval requirements.
Subject content, research points, subject scope, language scope, time scope, literature type, etc.
Secondly, choose the information retrieval system and determine the retrieval way.
1, the method of selecting information retrieval system:
(1) When the information retrieval system is completed, first use the information retrieval tool guide to guide the selection;
(2) If there is no information retrieval tool guide, you can choose by browsing the information retrieval tools displayed in the information retrieval tool room of the Library and Information Service;
(3) Choose familiar information retrieval tools;
(4) take the initiative to ask the staff;
(5) Help to choose online through the network.
2, the principle of selecting information retrieval system:
(1) The collected literature information should include the subject content of the retrieval subject;
(2) the principle of proximity, convenient access;
(3) The quality should be as high as possible, and the collected documents should be informative, timely reported, fully indexed and easy to use;
(4) The record source, document type and language should meet the requirements of the retrieval subject as far as possible;
(5) Whether the database has a corresponding printed version;
(6) Selecting information retrieval system according to economic conditions;
(7) Select according to the familiarity with the retrieved information;
(8) Select a network search engine with high correlation with the detection information.
Third, choose search terms.
The basic methods of determining search terms: selecting standardized search terms; Use terms commonly used in international disciplines and appearing in foreign documents as search terms; Find out the hidden theme concepts involved in the theme as search words; Select the core concept of the theme as the search term; Pay attention to abbreviations, morphological changes and different spellings in Britain and America; Determine how the search term is online.
Fourth, formulate retrieval strategies and consult retrieval tools.
1. The premise of formulating retrieval strategy is to understand the basic performance of information retrieval system, the basis is to clarify the content requirements and retrieval purpose of retrieval theme, and the key is to correctly select retrieval words and rationally use logical combination.
2. The causes of false detection may be: using polysemous search words; The search terms are the same as the names, addresses and periodicals of British and American people; Use lax position operators; Logical NOT operation is not used in the retrieval formula; Improper word truncation operation; Forgot to enter the instruction "s" before the group number; There are no spaces before and after logical operation symbols; Incorrect use of parentheses; Print the retrieval results from the wrong group number; There are too few retrieval concepts in the retrieval formula.
3. The reasons for missing or zero retrieval results may include: not using enough synonyms and synonyms or implied concepts; Position operators are used too strictly and too much; Logical "and" are used too much; Suffix code is too restrictive; Improper selection of retrieval tools; Improper word truncation operation; Word spelling error, document number error, group number error, bracket mismatch, etc.
4. The methods to improve the accuracy are: using low-level concept retrieval; Limit the search scope of search words to the fields of article title, description, abstract and so on; Use logical AND or logical NOT to use the restricted selection function; Perform an advanced check or an advanced search.
5. The methods to improve the recall rate are: select all fields to search; Reduce the restrictions on the appearance characteristics of documents; Use logical or; Search with truncated words; Search by using the superior concept of the search term; Change (w) operator to (1N), (2n); Please enter a more suitable database to search.
Five, processing the retrieval results
Systematically sort out the obtained retrieval results, screen out the relevant literature information that meets the theme requirements, select the description format of the retrieval results, identify the record contents such as literature type, genre, author, title, content and source, and output the retrieval results.
Acquisition of the original file of intransitive verbs
1, using the secondary literature retrieval tool to obtain the original literature.
2. Use the collection catalogue and the joint catalogue to obtain the original documents.
3. Use the literature publishing agency to obtain the original literature.
4. Use the author to obtain the original document.
5. Use the Internet to obtain original documents ... >>