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Sổ tay kỹ sư cơ khí P23

Tham khảo tài liệu 'sổ tay kỹ sư cơ khí p23', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | CHAPTER 78 SOURCES OF MECHANICAL ENGINEERING INFORMATION Fritz Dusold Retired from Mid-Manhattan Library Science and Business Department New York New York Myer Kutz Myer Kutz Associates Inc. New York New York 78.1 INTRODUCTION 2287 78.5 CODES SPECIFICATIONS AND STANDARDS 2289 78.2 THE PRIMARY LITERATURE 2287 78.2.1 Periodicals 2288 78.6 GOVERNMENT 78.2.2 Conference Proceedings 2288 PUBLICATIONS 2290 78.3 INDEXES AND ABSTRACTS 2288 78.7 ENGINEERING SOCIETIES 2290 78.3.1 Manual Searching 2288 78.3.2 Online Searching 2288 78.8 LIBRARIES 2291 78.4 ENCYCLOPEDIAS AND HANDBOOKS 2289 78.9 INFORMATION BROKERS 2291 78.1 INTRODUCTION This chapter is designed to enable the engineer to find information efficiently and to take advantage of all available information. The emphasis is placed on publications and services designed to identify and obtain information. Because of space limitations references to individual works which contain the required information are limited to a few outstanding or unusual items. 78.2 THE PRIMARY LITERATURE The most important source of information is the primary literature. It consists mainly of the articles published in periodicals and of papers presented at conferences. New discoveries are first reported in the primary literature. It is therefore a major source of current information. Peer review and editorial scrutiny prior to publication of an article are imposed to ensure that the article passes a standard of quality. Most engineers are familiar with a few publications but are not aware of the extent of the total production of primary literature. Engineering Index known as Compendex in its electronic version alone abstracts material from thousands of periodicals and conferences. Handbooks and encyclopedias are part of the secondary literature. They are derived from primary sources and make frequent references to periodicals. Handbooks and encyclopedias are arranged to present related materials in an organized fashion and provide quick access to