Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NASA-CR-182985, NAS 1.26:182985 |
| 来源ID | NTRS_Document_ID: 19880016000 |
| NASA combined file postings statistics based on NASA thesaurus, Jan. 1968 - July 1988 | |
| [unavailable] | |
| 英文摘要 | The NASA Combined File Postings Statistics is published semiannually (January and July). This alphabetical listing of postable subject terms contained in the NASA Thesaurus is used to display the numbers of postings (documents) indexed by each subject term from 1968 to date. The postings total per term are separated by announcement or other media into STAR, IAA, NLN, and OTHER columnar entries covering the NASA document collection (1968 to date). Nearly 594,000 book postings for NALNET Books held by NASA libraries are now included under the NLN column. CSTAR postings as well as some previously unreported series are now listed under the other column. File postings statistics for the Alternate Data Base covering the NASA collection from 1962 through 1967 were published on a one-time basis in September 1975. Subject terms for the Alternate Data Base are derived from the Subject Authority List, reprinted in 1985, which is available on request. The distribution of 16,919,195 postings among the 17,105 Thesaurus terms is tabulated on the last page of Combined File Postings Statistics. |
| 英文关键词 | DICTIONARIES INDEXES (DOCUMENTATION) NASA PROGRAMS TERMINOLOGY THESAURI DATA BASE MANAGEMENT SYSTEMS DOCUMENTS LIBRARIES REPORTS |
| 出版年 | 1988 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19880016000 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/259104 |
| 推荐引用方式 GB/T 7714 | [unavailable]. NASA combined file postings statistics based on NASA thesaurus, Jan. 1968 - July 1988,1988. |
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