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Acoustic radiation from two-dimensional rectangular cutouts in aerodynamic surfaces

Description: From Introduction: "The experiments in high-speed flow showed that an intense, high-frequency acoustic radiation is an essential feature of the problem. Consequently, a study of the acoustic field (involving schlieren observations and frequency and intensity measurements) was undertaken. This report presents the salient features of the study, which was mainly exploratory."
Date: August 1955
Creator: Krishnamurty, K.
Item Type: Refine your search to only Report
open access

Effect of Oil-Base Drilling Fluid Filtrate on Analysis of Cores from South Coles Levee, California, and Rangely, Colorado Fields

Description: Report issued by the U.S. Bureau of Mines on the study of contamination of cores obtained with conventional core barrels. The effect of the oil-based drilling fluid and analysis of the cores are presented. The report includes tables, graphs, and illustrations.
Date: August 1950
Creator: Gates, Gates L.; Morris, Frank C. & Caraway, W. Hodge
Item Type: Refine your search to only Report
open access

An Investigation of Airborne Radioactivity Anomalies in the Rock Corral Area, San Bernardino County, California

Description: From abstract: The investigation in the Rock Corral area was undertaken to determine the relationship between 1) the anomalously high radioactivity recorded during an airborne survey and 2) the distribution and mineralogic mode of occurrence of radioactive material.
Date: August 1953
Creator: Moxham, Robert Morgan; Walker, George Walton & Baumgardner, Luke H.
Item Type: Refine your search to only Report
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