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Sinusoidal machine.

Description: "These instructions are published for the information and guidance of all personnel charged with the operation and maintenance of the McIntosh Electric Corporation Model No. 5018 of Sinusoidal Machine, Portable, for Galvanic, Faradic and Rapid Sinusoidal Currents, 110-Volt, 60-Cycle, Medical Department item No. 7132005 ... in the field. They contain information on the operation and maintenance of the equipment ...."
Date: September 1, 1944
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Aircraft radio shop practice.

Description: Discusses maintenance and repair of the component parts of aircraft radio equipment, and the correct use of tools.
Date: May 1, 1942
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Experimental Physics Division of the Los Alamos Project. Progress report No. 4

Description: Included in this semi-monthly report written in 1943 are progress with neutron beams, neutron absorption in enriched materials, equipment operation and maintenance reports of the cyclotron neutron source facility, and instrumentation maintenance activities of individuals in the cyclotron group. (GHT)
Date: September 1, 1943
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Eight New Synthetic Elements

Description: In an early continuation of the investigation of the radioactive isotopes of element number 43 (technetium) Segre and Seaborg produced by the deuteron and neutron bombardment of molybdenum the isotope Tc{sup 99}, which they observed to decay by means of an isomeric transition with a half-life of 6.6 hours to a lower isomeric state with a half-life greater than 40 years. The upper isomeric state of this isotope was observed by Segre and C. S. Wu to be produced in the fission of uranium and more … more
Date: November 1, 1947
Creator: Seaborg, Glenn T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experiments of the Effect of Atomic Electrons on the DecayConstant of Be7

Description: In an attempt to detect a possible influence of the atomic electrons on the radioactive decay constant of Be{sup 7} they have measured {lambda}{sub Be}-{lambda}{sub BeO} and found (-3.0 {+-} 1.8) 10{sup -4} {lambda}{sub Be}. They describe also a method to measure mean lives of radioactive substances in a time short compared with the mean life.
Date: July 1, 1948
Creator: Segre, Emilio & Wiegand, Clyde
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phosphorus Turnover and Photosynthesis

Description: The participation of phosphorus in biological oxidation-reduction reactions of the type found in glycolysis ADP + PO{sub 4}H{sup -} + 3-phosphoglyceraldehyde + DPN{sup +} = 3-phosphoglycerate{sup -} + 2H{sup +} + DPNH + ATP has suggested theories in which similar reactions are proposed for photosynthesis. In these theories the reducing power of photosynthesis is utilized not only for reduction of carbon dioxide but also, by means of coupled oxidations, for the generation of high-energy phosphat… more
Date: November 1, 1947
Creator: Aronoff, Sam & Calvin, Melvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Artificial Collateral Chains to the Thorium and ActiniumFamilies

Description: The authors have produced and identified two new series of alpha-particle emitting radioactive elements; one is a 'collateral' branch of the actinium (4n + 3) radioactive family and the other is collateral to the thorium (4n) family. The series are of considerable interest in that they are the first whose early members lie on the neutron deficient side of beta stability. They have been produced in high yield of irradiation of thorium with deuterons of energy about {sup 80}Mev in the Berkeley 18… more
Date: July 1, 1948
Creator: Ghiorso, A.; Meinke, W. W. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 60 for April 1948

Description: This report gives a short summary of each of the following programs: (1) 184-inch Cyclotron Program; (2) 60-inch Cyclotron Program; (3) Synchrotron Program; (4) Linear Accelerator Program; (5) Experimental Physics; (6) Theoretical Physics; (7) Chemistry; (8) Medical Physics; and (9) Health Physics and Chemistry.
Date: May 1, 1948
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 58 for February 1948

Description: This is a monthly progress report on the following programs: (1) 184-inch Cyclotron; (2) 60-inch Cyclotron; (3) Synchrotron; (4) Linear Accelerator; (5) Experimental Physics; (6) Theoretical Physics; (7) Isotope Research; (8) Chemistry; (9) Medical Physics; and (10) Health Physics and Chemistry.
Date: February 1, 1948
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Path of Carbon in Photosynthesis III

Description: Although the overall reaction of photosynthesis can be specified with some degree of certainty (CO{sub 2} + H{sub 2}O + light {yields} sugars + possibly other reduced substances), the intermediates through which the carbon passes during the course of this reduction have, until now, been largely a matter of conjecture. The availability of isotopic carbon, that is, a method of labeling the carbon dioxide, provides the possibility of some very direct experiments designed to recognize these interme… more
Date: June 1, 1948
Creator: Benson, A. A. & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 59 for March 1948

Description: This monthly progress report covers the following programs: (1) 184-inch Cyclotron; (2) 60-inch Cyclotron; (3) Synchrotron; (4) Linear Accelerator; (5) Experimental Physics; (6) Theoretical Physics; (7) Chemistry; (8) Medical Physics; and (9) Health Physics and Chemistry.
Date: March 1, 1948
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diffraction Effects in Neutron Attenuation Measurements

Description: All errors due to diffraction effects in a neutron attenuation experiment are computed. Also a special experiment to measure the forward intensity of diffracted neutrons from lead and copper is described, and the results given. These agree with the theoretical values.
Date: November 1, 1947
Creator: McMillan, E. M. & Sewell, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Identification and Determination of Trace Amounts of Rare Earth Elements in Graphite by Neutron Activation

Description: Abstract: "A method is described for the identification and quantitative determination of trace amounts of rare earths in graphite by measurement of the energies and decays of the activities induced by neutron irradiation. The specific rare earth elements identified are europium and samarium. During the development of this method, the half-lives of Eu-152 and Sm-153 were determined. These are reported as 9.32 +/- 0.04 hours and 46.34 +/- 0.23 respectively."
Date: September 1, 1949
Creator: Ross, A. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Reactor Project Progress Report, January 1948

Description: This report is a progress report detailing operations and ongoing projects at the Brookhaven National Laboratory. The report describes new developments with buildings and progress regarding ongoing experiments. The report includes photographs showing progress in the construction of the reactor and other images and figures that accompany the descriptions of projects.
Date: January 1, 1948
Creator: Borst, L. B. & Fox, Marvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Reactor Progress Report

Description: Technical report describing the building of safety devices and features for the Oak Ridge reactor by the Reactor Safeguard Committee of the Atomic Energy Commission. Outlines the difficulties encountered in detailed design and construction operations for the facility.
Date: October 1, 1948
Creator: Brookhaven National Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tolerance concentration of radioactive gases in air

Description: The effects of ionizing radiation on the lung, specifically the bronchial tubes, were discussed relative to the incidence of lung cancer in radium miners. The energy transferred to the epithelium by inhaled radon was calculated, and the steps in the process leading to the initiation of cancer were described. (ACR)
Date: January 1, 1944
Creator: Failla, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, June 1, 1942 : week of May 22 to May 29

Description: Front: Text describes action on various war fronts: Allied raids effective -- Stilwell in India -- Chinese repulse Japs -- Planes sink subs -- Against overconfidence -- Private buys $3,700 war bonds -- U.S. mission in Britain points to new fronts -- Labor will be 'frozen' -- Camacho asks for war -- 'Freeze' fish, razors -- New registration set -- Recruiting for WAAC -- Millions in war work -- Bombers to pop out like Model T's at Willow Run -- Kurdish revolt crushed -- Heavy action at Kharkov --… more
Date: June 1, 1942
Creator: [United States]. Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, March 1, 1943 : week of February 19 to February 26, 181st week of the war, 63rd week of U.S. participation

Description: Front: Text describes action on various war fronts: North Africa, Russia, Burma-China, New Guinea, Solomons, Aleutians, Sinkings (sea losses). Large world map is keyed to text. Includes table: Great Circle Distances in Statute Miles. Inset map shows Tunisia. Includes photos: Nazi Panzers in Bizerte, Air base at Dakar, Hold on Kharkov, Hunting enemy submarines. Back: Poster provides recognition cues and front and profile drawings of Allied and Axis heavy, medium, and light armored cars. Incl… more
Date: March 1, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, February 1, 1943 : week of January 22 to January 29

Description: Front: Text describes action on various war fronts: Allied Council, North Africa, Western Europe, Solomons, New Guinea, Wake, Russia, Aleutians. Includes ten photographs. Large world map is keyed to text and illustrates time zones around the world. Inset maps show North Africa and Russia. Back: "Soviet Infantry." Two posters by Glen Mitchell show Soviet infantry in action. Also included are images of Soviet uniform insignia and Soviet weapons.
Date: February 1, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department

Newsmap. Monday, November 1, 1943 : week of October 21 to October 28, 216th week of the war, 98th week of U.S. participation

Description: Text describes action on various war fronts: "Jinx," Russia, Italy, Air Offensive, Aegean Sea, Southwest Pacific, Burma, Tarawa. Maps: Breakthrough above the Crimea -- Setting the range for Rabaul Photographs: "Jinx" [the six-man crew and their tank destroyer "Jinx" on the Italian front]; [Nazis in the Soviet Union] ; Paratroops at Lae, New Guinea. Back: Map of Northern Italy.
Date: November 1, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department
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Machining & installation of graphite for 105 DR & H

Description: This report describes the basic design, intermediate and final stacking procedures, and graphite behavior of nuclear reactors DR and H during construction. Included in the report are test records to substantiate basic design assumptions and data and the actual performance of the graphite during preliminary and final stacking.
Date: October 1, 1949
Creator: MoKenna, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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