Serial/Series Title
United States Bureau of Mines Reports
270
Atomic Energy Commission Reports
153
Argonne National Laboratory Reports
123
United States Geological Survey Reports
91
National Bureau of Standards Reports
80
NACA Technical Memorandums
67
AEC research and development report
48
Bulletin (United States. Bureau of Mines)
45
TID
43
Oak Ridge National Laboratory Reports
41
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Competition for Safety Fuel Tanks
Report describing a competition for safety fuel tanks, including the prizes, requirements that must be fulfilled, some other characteristics, tests, and regulations.
Date:
September 1921
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Lecture on the Rhon soaring flight competition, 1921
This article presents a recounting of the Rhon soaring competition with emphasis on new designs, results, and prizes awarded. A round-robin discussion is also included at the end of the report.
Date:
June 1922
Creator:
Hoff, Wilhelm
Object Type:
Report
System:
The UNT Digital Library
Royal Aero Club Light Aeroplane Competition
Memorandum describing the results of the Royal Aero Club light airplane competition and some of the history surrounding the event. A list of the planes that participated and an analysis of the performance of the various aircraft are provided.
Date:
January 1925
Creator:
Buchanan, J. S.
Object Type:
Report
System:
The UNT Digital Library
Technical Aspects of the 1934 International Touring Competition (Rundflug)
The rules and regulations for the International Touring Competition are presented as well as the technical characteristics that proved advantageous for the successful competitors.
Date:
December 1934
Creator:
Schulz, R. & Pleines, W.
Object Type:
Report
System:
The UNT Digital Library
National Safety Competition of 1942
Report issued by the U.S. Bureau of Mines on its annual safety contest between mine workers. Different types of mines enrolled in the competition and the winners and honorable mentions for 1942 are presented. This report includes tables.
Date:
October 1943
Creator:
Adams, William Waugh & Lawrence, T. D.
Object Type:
Report
System:
The UNT Digital Library
Competition in the Nuclear Power Supply Industry
From purpose and scope: The Justice Department and the AEC embarked upon this joint study so as to provide the basis for preparation and consideration of guidelines for the nuclear industry best designed to foster vigorous growth and to provide a sound basis for government action.
Date:
December 1968
Creator:
Arthur D. Little, Inc.
Object Type:
Report
System:
The UNT Digital Library
Fission and Spallation Competition in Ra²²⁶, Th²³⁰, U²³⁵, and Np²³⁷
This report follows the radiochemical study of fission and spallation products produced by bombardment of U-235 with 18- to 16-Mev helium ions and of the spallation products produced by 8- to 23-Mev deuteron bombardments of Np-237.
Date:
July 1957
Creator:
Vandenbosch, Robert
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The National Safety Competition of 1929
Report issued by the U.S. Bureau of Mines on the fifth annual national safety competition. The states represented in the competition are listed. Accident-frequency rates are presented as well. This report includes tables.
Date:
May 1930
Creator:
Adams, William Waugh
Object Type:
Report
System:
The UNT Digital Library
On Neutron Evaporation From Excited Nuclei
At high excitation energies, competition of proton and c-particle emission with neutron emission becomes important. For low excitation, the competition between Y-emission, neutron emission, and fission should be taken into account. To aid in the evaluation of this competition an experiment has been performed to measure the number and energy spectrum of the protons and c-particles emitted in the high energy bombardment of uranium with protons, deuterons, and c-particles.
Date:
June 18, 1953
Creator:
Adelman, Frank L.
Object Type:
Report
System:
The UNT Digital Library
Notes on Specifications for French Airplane Competitions
Given here are the rules officially adopted by the Aeronautical Commission of the Aero Club of France for a flight competition to be held in France in 1920 at the Villacoublay Aerodrome. The prize will be awarded to the pilot who succeeds in obtaining the highest maximum and lowest minimum speeds, and in landing within the shortest distance.
Date:
October 1920
Creator:
Margoulis, W.
Object Type:
Report
System:
The UNT Digital Library
Comparison of Weights of 17ST and Steel Tubular Structural Members Used in Aircraft Construction
Although the strong aluminum alloys have proved themselves to be very efficient in aircraft construction there is a growing competition from the high-strength steels for certain parts, especially for tubular members. This tendency is being reflected in research work carried on at the Bureau of Standards. This study will be based largely on data given in Technical Note No. 307 of the NACA.
Date:
May 1931
Creator:
Hartmann, E. C.
Object Type:
Report
System:
The UNT Digital Library
Rules and Regulations for Endurance Contest of Aviation Engines: Under the Auspices of the Aero Club of France
Memorandum presenting the rules and regulations of the Endurance Contest of Aviation Engines, which was put on by the Aero Club of France. A description of the rules regarding the aircraft in competition, the characteristics of the tests that were conducted, and information regarding classification of the aircraft is provided.
Date:
November 1923
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Two-Seat Light Airplanes Which Participated in Contest Held at Lympne, England, Week of September 29 to October 4, 1924
Memorandum presenting a description of a competition to produce an airplane suitable for school work. The characteristics evaluated included the speed range, take off, landing, reliability, and high and low speed are provided. A variety of monoplanes and biplanes were entered and a description of each and their blueprints are provided.
Date:
November 1924
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
High Energy Fission and Spallation of Uranium
From introduction: "This report is an attempt to examine, semiquantitavely, the way the competition between neutron emission and fission varies for heavy nuclei as a function of nuclear type and excitation energy. Many of the ideas herein are the results of discussions with R. H. Goeckermann and W. Heckrotte of the University of California Radiation Laboratory."
Date:
February 25, 1954
Creator:
Batzel, Roger Elwood
Object Type:
Report
System:
The UNT Digital Library
Rocket Power Plants Based on Nitric Acid and their Specific Propulsive Weights
"Two fields are reserved for the application of rocket power plants. The first field is determined by the fact that the rocket power plant is the only type of power plant that can produce thrust without dependence upon environment. The second field is that in which the rocket power plant proves itself the most suitable as a high-power drive in free competition with other types of power plants" (p. 1).
Date:
May 1947
Creator:
Zborowski, Helmut
Object Type:
Report
System:
The UNT Digital Library
Terminal Report to U.S. Atomic Energy Commission [for] December 20, 1954 to July 9, 1955
A survey of reactors believed to be suited for most effect competition with conventionally fueled power plants in the continental USA. Basic design data are summarized for a light-water-moderated boiling reactor and aqueous homogeneous reactors.
Date:
December 2, 1955
Creator:
{{{name}}}
Object Type:
Report
System:
The UNT Digital Library
Knock-limited power outputs from a CFR engine using internal coolants 2: six aliphatic amines
Report presenting an investigation to determine the knock-limited performance of AN-F-28, Amendment-2, fuel in a DCFR engine when water solutions of the following aliphatic amines were added as internal coolants: monomethylamine, dimethylamine, ethylendiamine, diethylamine, triethylamine, and butylamine. Results regarding the mean effective pressure, indicated specific fuel competition, indicated specific liquid consumption, and knock-limited inlet-air pressure plotted against fuel-air ratio are presented for each fuel and amine combination.
Date:
October 1945
Creator:
Bellman, Donald R.; Moeckel, W. E. & Evvard, John C.
Object Type:
Report
System:
The UNT Digital Library
Fishery Interaction Between the Tuna Lonline and Other Pelagic Fisheries in Hawaii
Abstract: The Hawaii pelagic surface fisheries and more recently the longline fisheries have grown dramatically. As a result, competition between fisheries on the fishing grounds and in the marketplace has also increased. Physical conflicts between vessels and claims of decreased fishing success by surface (troll and handline) fishermen led to the enactment of Federal regulations limiting the number of domestic longline vessels and the areas in which they can operate. The scientific evidence of biological or economic fishery interaction between longline and small-vessel fishermen is limited but suggests that intense longline fishing near the Hawaiian Islands has the potential to affect catch rates in other Hawaii fisheries. Better data collection and more research are needed to document fishery interaction and to improve fishery management.
Date:
October 1993
Creator:
Skillman, Robert A.; Boggs, Christofer H. & Pooley, Samuel G.
Object Type:
Report
System:
The UNT Digital Library
The Role of Internal Conversion in the Study of Isomeric Transitions
A short review of the field of internal conversions. Isomeric transitions teach us many details of nuclear structure. In these studies electromagnetic theory is considered as a "tool". It is a quite quantitative tool in the case of "internal conversion" - a phenomenon which has been widely studied for many years. Internal conversion takes place in competition with γ-ray emission: a fraction of the nuclei in excited states decay by γ-ray emission, the remaining fraction by transferring the energy to K, or L, etc. electrons in the atomic shell. Thus the lifetime of an excited nuclear state depends on the internal conversion coefficient. As internal conversion must be expected to depend on the details of the electronic environment, the lifetime of an isomeric state depends on the state of chemical combination of the isomer - as was recently shown explicitly in one case, that of Te-99m(6hr.).
Date:
June 24, 1954
Creator:
Goldhaber, M.
Object Type:
Report
System:
The UNT Digital Library
The Radiation Chemistry of Nitrite Ion in Aqueous Solution
When deaerated solutions of KNO2 at their natural pH are irradiated with γ- or x-rays, the main initial reaction is a formation of hydrogen and hydrogen peroxide. As peroxide builds up, a radiation-induced reaction between nitrite and peroxide sets in, which results in the formation of nitrate. This reaction is slower the higher the nitrite concentration. The kinetics of the nitrite-peroxide reaction were studied in detail by the irradiation of synthetic mixtures, and the results were satisfactorily explained by a free radical mechanism. The main feature of the mechanism is a competition between H2O2 and NO2- for reaction with H atoms generated in the water. The yield for H-atom formation is found to be 2.4 per 100 ev. The initial yield of peroxide in the pure nitrite solutions is greater than the yield of hydrogen, and decreases with increasing nitrite concentration, at concentrations below 0.002M. The effect of nitrite on the initial peroxide yield is qualitatively similar to the effect of bromide reported by Sworski. In nitrite solutions containing oxygen, an immediate nitrite oxidation occurs on irradiation, with a yield which increases with increasing ratio of the concentration of nitrite to that of oxygen.
Date:
unknown
Creator:
Schwars, Harold A. & Allen, Augustine O.
Object Type:
Report
System:
The UNT Digital Library
Fluxes and Reaction Rates in the Presence of Interferring Resonances
The effects of competition between resonances of different isotopes were investigated. Flux and reaction rate calculations on a Pu/sup 239/-- U/sup 238/ system revealed that U/sup 238/ exhibits both self-shielding and interference effects, the latter becoming noticeable at enrichment of a few per cent. Gold activation was also found to be depressed by the presence of U, but was insensitive at low enrichment values, Investigation of the Pu/sup 239/ resonance integral showed an asymmetric effect involving both interference between potential and resonant scattering and interference with resonance absorption in another isotope. The interference scattering arising in each resonance level had a notable effect on the average change in the Doppler coefficient. (D.C.W.)
Date:
November 1963
Creator:
Kelber, Charles N.
Object Type:
Report
System:
The UNT Digital Library
The Employment of Airships for the Transport of Passengers: Indications on the Maximum Limits of Their Useful Load, Distance Covered, Altitude and Speed
It was a conclusion of this detailed study of the practicality of using airships for carrying passengers that, although slow, airships are capable of carrying useful loads over long distances. However, it is noted that there is a certain limit to the advantages of large cubature. Beyond a certain point, the maximum altitude of the airship goes on decreasing, in spite of the fact that the range of action in the horizontal plane and the useful load go on increasing. The possibility of rapid climb is an essential factor of security in aerial navigation in the case of storms, as is velocity.
Date:
August 1921
Creator:
Nobile, Umberto
Object Type:
Report
System:
The UNT Digital Library
A preliminary determination of normal accelerations on racing airplanes
"Rules and methods for insuring safe structural strength of racing airplanes used in the major air meets in this country have recently been considered. Acceleration records made in racing airplanes during actual air races were therefore considered desirable, and the NACA undertook the measurement of acceleration of loads on airplanes during all conditions of flight. Accelerations were measured on four airplanes at the Miami All-American Races in January 1934 and January 1935" (p. 1).
Date:
August 1935
Creator:
Scudder, N. F. & Kirschbaum, H. W.
Object Type:
Report
System:
The UNT Digital Library
Abnormal grain growth in nickel-base heat-resistant alloys
From Introduction: "The data included in this report for Nimonic 80A alloy, for instance, represent experiments carried out to help clarify a production problem of grain-size control in an alloy which has been extensively used. The general procedure of the investigation was to carry out controlled laboratory experiments on samples of bar stock to find conditions of heating and hot-working which resulted in abnormal grain growth."
Date:
December 1957
Creator:
Decker, R. F.; Rush, A. I.; Dano, A. G. & Freeman, J. W.
Object Type:
Report
System:
The UNT Digital Library