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The Four Technical Reports
in America
Contents
1. Understanding the Four Technical Reports in America
2. Understanding the Retrieval Tools of the Four Reports
1. Understanding the Four Technical Reports in America
• AD Reports
• PB Reports
• NASA Reports
• DOE(DE) Reports
1.1 AD (Accessions Document )Reports
• Armed Services Technical Information Agency (ASTIA)
• ASTIA Document (AD)
• Defense Technical Information Center (DTIC)
• Accessions Document (AD)
1.1 AD (Accessions Document )Reports
• Coverage
• All defense fields
• Many non-military areas
• Security classifications
• Unclassified, Restricted or Limited, Confidential, Secret
• AD-A, AD-B, AD-C
1.2 PB Reports
• Publication Board, Department of Commerce
• Coverage
• Past: Research documents from the defeated powers in
the WWII
• Present: Research reports from US government agencies
1.2 PB Reports
• Focus •Security classifications
Unclassified
Engineering technology
•Report numbers
City planning
•PB-year-number
Environmental pollution
•E.g. PB-95-232070GAR
Biomedicine
1.3 NASA Reports
• National Aeronautics and Space Administration
• Coverage
Main focus: aeronautics and space
6000 reports annually有缘学习更多
+谓ygd3076考证资料
1.3 NASA Reports
• Report numbers
NASA-type-number E.g. NASA-CR-167298
Types
CR: Contract reports
TM: Technical memos
TN: Technical notes
TP: Technical paper
TT: Technical translations
SP: Special publications
1.4 DOE(DE) Repor
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