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Acoustic Flowmeter Prototype Evaluation Tests

Description: Summary: "Prototype tests of an acoustic flowmeter system were made in a 24-ftdiam power penstock at Oahe Dam to evaluate the system prior to permanent installation in the outlet works at Summersville Dam. Comparative discharge measurements included acoustic, penstock pressure-momentum (Gibson), turbine model test ratings, scroll-case pressure differential (Winter-Kennedy flowmeter), and surge tank volume changes. The acoustic flowmeter measurements were very consistent and many of the comparis… more
Date: January 1968
Creator: Pickett, Ellis B.
Item Type: Refine your search to only Report
open access

Anticrime Legislation,90th Congress, 1st Session, 1968

Description: This report is categorized into six categories: (I) The administrative's Crime Program, (II)General Crime Control Legislation,(III) Legislation Relating to Organized Crime Control, (IV) Legislation Relating to Law Enforcement Officers, (V) Legislation Relating to Riots and Civil Disobedience and (VI) Legislation Relating to Crime Control in the District of Columbia.
Date: January 22, 1968
Creator: Vialet, Joyce
Item Type: Refine your search to only Report
open access

Cold-Mold Arc Melting and Casting

Description: Report issued by the U.S. Bureau of Mines providing updates and additional information related to cold-mold arc melting and casting. Abstract: "This bulletin reviews the historical background of the cold-mold arc-melting technology, with specific references to the development that led to homogeneous zirconium ingots. Descriptions are given of modern production arc-furnaces for vacuum melting of both exotic and conventional metals. Besides zirconium, specific data are given for production of … more
Date: 1968
Creator: Beall, Robert A. & Hedges, Joseph Harold
Item Type: Refine your search to only Report
open access

Cosmic Ray Produced Ar37 and Ar39 Activities in Recently Fallen Meteorites

Description: Several methods of determining meteorite ages depend ages upon nuclides formed by cosmic ray interactions. The tactic assumption is always made that the intensity of cosmic radiation does not vary in time or space. However it is known that the intensity of cosmic radiation at the earth varies with the solar activity. The spectrum of cosmic ray protons and alpha particles exhibit a marked drop at the low energy end (<1.5 GeV) and the intensity in the region appears to follow the 11 year cycle of… more
Date: February 1, 1968
Creator: Davis, R. Jr.; Stoenner, R. W. & Schaeffer, O. A.
Item Type: Refine your search to only Report
open access

A Descriptive Catalog of Selected Aerial Photographs of Geologic Features in the United States

Description: From introduction: The U.S. Geological Survey has selected and assembled sets of photographs that illustrate numerous types of geologic features in the United States. This catalog lists these special sets of photographs that are available for purchase and describes the features illustrated. One reduced photograph from each set is shown on the back pages of this catalog to assist the purchaser in his selection.
Date: 1968
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Report
open access

Dibutyl Carbitol Solvent Extraction of Polonium-210 from Nitric Acid Solutions of Irradiated Bismuth

Description: Abstract: "A continuous countercurrent solvent extraction process utilizing dibutyl carbitol as the extractant has been developed for separating 210Po from large amounts of associated bismuth. Both laboratory and pilot plant data demonstrate the process is a suitable headend step in recovery of kilogram quantities of 210Po. Typically, the extraction process recovers over 98% of the 210Po, essentially free from bismuth (Bi DF>1500), in a dilute HNO3 solution suitable as a starting material for f… more
Date: February 1968
Creator: Schulz, Wallace W. & Richardson, G. L.
Item Type: Refine your search to only Report
open access

Diesel Exhaust Contamination of Tunnel Air

Description: Report issued by the Bureau of Mines on investigations of air contamination in tunnels due to diesel exhaust. Air samples were taken inside tunnels and measured for carbon dioxide, carbon monoxide, and nitrogen oxides. This report includes tables and graphs.
Date: February 1968
Creator: Holtz, John C. & Dalzell, Robert W.
Item Type: Refine your search to only Report
open access

Economic Policy and Inflation in the United States: A Review of Developments from the Enactment of The Employment Act of 1946 Through 1966

Description: This report details the effects of the Employment Act of 1946, inflation in the 20 years after the enactment of the law, and monetary policy changes and analysis on the part of the federal government during each 1-3 year period during that timeframe.
Date: January 15, 1968
Creator: Economics Division
Item Type: Refine your search to only Report
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