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The Path of Carbon in Photosynthesis II. Amino Acids

Description: The radioactive amino acid's synthesized from C{sup 14}O{sub 2} by green algae both in the light and in the dark after CO{sub 2}-free preillumination have been separated and identified using paper chromatography and radioautography. The radioactive amino acids identified were aspartic acid, alanine and smaller amounts of 3- and 4-carbon amino acids. This finding as well as the total absence of radioactive glutamic acid substantiates the mechanism for reduction of CO{sub 2} previously postulated… more
Date: May 25, 1948
Creator: Stepka, W.; Benson, A. A. & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research Progress Meeting of March 25, 1948

Description: This summary of the research progress meeting for March 25, 1948 covers the following topics: (1) Recent n-p scattering measurements; (2) Mass measurements of mesons; and (3) Naphthalene counters.
Date: March 25, 1948
Creator: Wakerling, R.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of the Low-Speed Stability and Control Characteristics of a Model With a Sweptback Vee Tail and a Sweptback Wing

Description: Report presenting testing in the 300 mph tunnel of a model with a sweptback vee tail and a sweptback wing to determine its low-speed stability and control characteristics. The results are compared to testing with the same tail panel with zero dihedral on the same wing-fuselage combination. The longitudinal stability characteristics, downwash at the tail, longitudinal control characteristics, lateral stability characteristics, and rudder control characteristics are provided.
Date: May 25, 1948
Creator: Polhamus, Edward C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Free-Flight Investigation of the Effect of Airfoil Section on Aileron Rolling Effectiveness at Transonic and Supersonic Speeds

Description: "Results have been obtained by means of a free-flight technique utilizing rocket propulsion which indicate that aileron-rolling-effectiveness characteristics are affected adversely by variations in airfoil section which procedure large increases in the trailing-edge angle" (p. 1).
Date: June 25, 1948
Creator: Sandahl, Carl A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Free-Flight Investigation at Transonic and Supersonic Speeds of the Rolling Effectiveness of a 42.7 Degree Sweptback Wing Having Partial-Span Ailerons

Description: An investigation of the rolling effectiveness at transonic and supersonic speeds of partial-span ailerons on a 42.7 degree sweptback wing having symmetrical circular-arc airfoil sections of 10-percent thickness ratio normal to the wing quarter-chord line has been made by means of rocket-propelled test vehicles. The results are compared with results of a supersonic wind-tunnel test at Mach number 1.9.
Date: October 25, 1948
Creator: Sandahl, Carl A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NACA Transonic Wing-Tunnel Test Sections

Description: Memorandum presenting an approximate subsonic theory developed for the solid blockage interference in circular wind tunnels with walls slotted in the direction of flow. The theory indicated the possibility of obtaining zero blockage interference. Tests in a circular slotted tunnel based on the theory confirmed the theoretical predictions.
Date: October 25, 1948
Creator: Wright, Ray H. & Ward, Vernon G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Investigation at a Mach Number of 1.9 and a Reynolds Number of 2,200,000 of Three Ailerons Applicable to the Bell XS-2 Airplane Design

Description: Report presenting testing of a 42.7 degree sweptback tapered wing with three types of ailerons tested at a Mach number of 1.9 and a Reynolds number of 2,200,000; the wing geometry was similar to that of an XS-2 airplane. The purpose of the investigation was to determine the effectiveness of ailerons at these specified flight characteristics. Results regarding the aerodynamic characteristics of the wing are also provided.
Date: May 25, 1948
Creator: Sivells, James C. & Conner, D. William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The excretion of hexavalent uranium following intravenous administration. II, Studies on human subjects

Description: Tracer studies employing uranium enriched in the isotopes U{sup 234}, U{sup 235} have been carried out in six human subjects; four males and two females. The uranium, 6 micrograms to 70 micrograms per kilogram of body weight was given intravenously in the hexavalent state as uranyl nitrate. Each individual of the series received a single injection of the metal except for one who was given two widely spaced doses. The first of these was when his condition was normal and the second after an acido… more
Date: June 25, 1948
Creator: Bassett, S.H.; Frankel, A.; Cedars, N.; VanAlstine, H.; Waterhouse, C. & Cusson, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Flying X Ranch Boys performing]

Description: Photograph of the Flying X Ranch Boys members in western attire performing.The Flying X Ranchboys were the first musical group to perform on television in Texas. Members from left: Lefty Perkins, guitar; Mel Cox, fiddle; Marvin "Smokey" Montgomery, banjo; Bruce "Roscoe" Pierce; Red Kidwell, bass; and Carroll Hubbard, fiddle.
Date: July 25, 1948
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[The Flying X Ranch Boys clowning around]

Description: Photograph of the Flying X Ranch Boys members in western attire clowning around. The Flying X Ranchboys were the first musical group to perform on television in Texas. Members from left: Lefty Perkins, guitar; Mel Cox, fiddle; Marvin "Smokey" Montgomery, banjo; Bruce "Roscoe" Pierce; Red Kidwell, bass; and Carroll Hubbard, fiddle.
Date: July 25, 1948
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Flying X Ranch Boys members]

Description: Photograph of the Flying X Ranch Boys members in western attire. The Flying X Ranchboys were the first musical group to perform on television in Texas. Members from left: Lefty Perkins, guitar; Mel Cox, fiddle; Marvin "Smokey" Montgomery, banjo; Bruce "Roscoe" Pierce; Red Kidwell, bass; and Carroll Hubbard, fiddle.
Date: July 25, 1948
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Flying X Ranch Boys playing around]

Description: Photograph of the Flying X Ranch Boys members in western attire clowning around. The Flying X Ranchboys were the first musical group to perform on television in Texas. Members from left: Lefty Perkins, guitar; Mel Cox, fiddle; Marvin "Smokey" Montgomery, banjo; Bruce "Roscoe" Pierce; Red Kidwell, bass; and Carroll Hubbard, fiddle.
Date: July 25, 1948
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Suggested hydrologic investigations at the Hanford Directed Operations

Description: This memorandum is an outline of hydrologic investigations that seem desirable at the Hanford Directed Operations of the Atomic Energy Commission. In its present form, the outline is tentative and is intended as a basis for further considerations in the Commission, the Geological Survey, and other agencies concerned. In scope, it seeks to cover (1) advisory functions to the Atomic Energy Commission and its prime contractor with respect to an evaluation of the continuing hazards due to process w… more
Date: August 25, 1948
Creator: Piper, A. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Iodine Exchange Reaction

Description: This report discusses an analysis on the exchange reaction between iodine and unipositive iodine with pyridine.
Date: August 25, 1948
Creator: Kleinberg, Jacob & Sattizahn, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance of J33-A-23 Turbojet-Engine Compressor, II, Over-All Performance Characteristics of Compressor with 34-Blade Impeller at Equivalent Impeller Speeds from 6000 to 11,750 RPM

Description: "The J33-A-23 compressor with a 34-blade impeller was operated at ambient inlet temperature and an inlet pressure of 14 inches mercury absolute over a range of equivalent impeller speeds from 6000 to 11,750 rpm. Additional runs at equivalent speeds of 7,000, 10,000, and 11,750 rpm and ambient inlet temperature were made at inlet pressures of 5 and 10 inches mercury absolute. The results of this investigation are compared with those of the J33-A-23 compressor with a 17-blade impeller" (p. 1).
Date: August 25, 1948
Creator: Beede, William L. & Kovach, Karl
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Depository Instructions Series No. 3

Description: This document offers the list of instructions to depository libraries. These instructions include care, classification, and access to federal publications.
Date: October 25, 1948
Creator: United States. Government Printing Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
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