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  Partner: UNT Libraries Government Documents Department
 Collection: Technical Report Archive and Image Library
Review of flight tests of NACA C and D cowlings on the XP-42 airplane
Results of flight tests of the performance and cooling characteristics of three NACA D cowlings and of a conventional NACA D cowling on the XP-42 airplane are summarized and compared. The D cowling is, in general, characterized by the use of an annular inlet and diffuser section for the engine-cooling air. The D cowlings tested were a long-nose high-inlet-velocity cowling, a short-nose high-inlet-velocity cowling, and a short-nose low inlet-velocity cowling. The use of wide-chord propeller cuffs or an axial-flow fan with the D cowlings increased the cooling pressure recoveries in the climb condition at the expense of some of the improvement in speed. digital.library.unt.edu/ark:/67531/metadc60038/
Review of flight tests of NACA C and D cowlings on the XP-42 airplane
No Description digital.library.unt.edu/ark:/67531/metadc279477/
Review of high-performance axial-flow-compressor blade-element theory
This report presents a review of current compressor blade-element theory with particular emphasis on application to the transonic high-performance compressor. A discussion of the significant parameters of total-pressure loss and deviation angle is presented, and an indication of the extent of available knowledge and the problems involved in the determination of blade-element characteristics is given. Some recent results and considerations in this pursuit and suggestions for further avenues of investigation are indicated. digital.library.unt.edu/ark:/67531/metadc59958/
Review of information on induced flow of a lifting rotor
No Description digital.library.unt.edu/ark:/67531/metadc57094/
A review of information on the mechanical properties of aluminum alloys at low temperatures
No Description digital.library.unt.edu/ark:/67531/metadc55534/
A review of instruments developed for the measurement of the meteorological factors conductive to aircraft icing
No Description digital.library.unt.edu/ark:/67531/metadc53542/
A Review of Leakage-Flow-Induced Vibrations of Reactor Components
The primary-coolant flow paths of a reactor system are usually subject to close scrutiny in a design review to identify potential flow-induced vibration sources. However, secondary-flow paths through narrow gaps in component supports, which parallel the primary-flow path, occasionally are the excitation source for significant vibrations even though the secondary-flow rates are orders of magnitude smaller than the primary-flow rate. These so-called leakage flow problems are reviewed here to identify design features and excitation sources that should be avoided. Also, design rules of thumb are formulated that can be employed to guide a design, but quantitative prediction of component response is found to require scale-model testing. digital.library.unt.edu/ark:/67531/metadc283590/
Review of Literature on Dusts
No Description digital.library.unt.edu/ark:/67531/metadc12638/
Review of Literature on Effects of Breathing Dusts with Special Reference to Silicosis
No Description digital.library.unt.edu/ark:/67531/metadc12567/
Review of literature pertinent to fire-extinguishing agents and to basic mechanisms involved in their action
No Description digital.library.unt.edu/ark:/67531/metadc55553/
A Review of Metal-Matrix Encapsulation of Solidified Radioactive High-Level Waste
A reference conceptual flowsheet based on existing or developing technology for encapsulation of stabilized calcine pellets is discussed. Conclusions and recommendations are presented. digital.library.unt.edu/ark:/67531/metadc283610/
A review of NACA research through 1954 on boron compounds as fuels for jet aircraft (Project Zip)
No Description digital.library.unt.edu/ark:/67531/metadc64502/
A review of naca research through 1954 on boron compounds as fuels for jet aircraft /project zip/
No Description digital.library.unt.edu/ark:/67531/metadc53022/
A Review of Parameterizations of Microphysical Processes in Clouds for Application in Models of Regional Atmospheric Deposition
The literature on parameterizations of cloud microphysical processes was reviewed to examine the theoretical bases of those parameterizations and to evaluate their applicability to regional models. New parameterizations were produced by multiple regression upon the solution fields derived from simulations of a cloud model incorporating sophisticated microphysics. The currently available rates for cloud microphysical interactions were generally derived under the assumption that the size distribution functions for various hydrometeors are given. Such parameterizations must therefore be applied with caution because the spectral evolution of various types of hydrometeors in reality varies significantly during the stages of cloud development. Uncertainties exist in assigning values for aerodynamic properties such as the bulk collection efficiency, and the growth processes for various types of ice crystals are not well enough known for accurate multiphase cloud-microphysics parameterizations. The new parameterizations, in general, compare favorably with those currently available and are more efficient and applicable to regional models. The largest discrepancies occur in the autoconversion rates, whereas the accretion rates agree closely when the assumed collection efficiencies in other formulas are smaller than unity. digital.library.unt.edu/ark:/67531/metadc282838/
A review of planing theory and experiment with a theoretical study of pure-planing lift of rectangular flat plates
No Description digital.library.unt.edu/ark:/67531/metadc57612/
Review of problems of conservation of strategic materials for turbine engines
No Description digital.library.unt.edu/ark:/67531/metadc58782/
Review of Radioisotopes Program, 1964
Report issued by the Oak Ridge National Laboratory discussing a review of the Radioisotopes Program during 1964. Research and experimental projects conducted during 1964 is presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc100336/
A review of recent information on boundary-layer transition at supersonic speeds
No Description digital.library.unt.edu/ark:/67531/metadc62235/
Review of Safety and Health Conditions in the Mines at Butte
No Description digital.library.unt.edu/ark:/67531/metadc12434/
Review of Sodium Effects on Candidate Materials for Central Receiver Solar-Thermal Power Systems
Available information on the corrosion behavior and mechanical properties of structural materials in a high-temperature sodium environment has been reviewed to compile a data base for selection of materials for advanced central-receiver solar-power systems, for which sodium is being considered as a heat-transfer fluid and thermal-storage medium. Candidate materials for this application (e.g., Types 304, 316, and 321 stainless steel, Alloy 800, and Fe-2 1/4 Cr-1Mo and Fe-9Cr-1Mo ferritic steels) have been used in the construction of various components for liquid-metal fast-breeder reactors in this country and abroad with considerable success. Requirements for additional information on material properties in a sodium environment are identified. The additional data coupled with more quantitative deformation models, failure criteria, and component design rules will further reduce uncertainties in the assessment of performance limits and component reliability in large sodium heat-transport systems. digital.library.unt.edu/ark:/67531/metadc283298/
Review of Soils, Design and Field Observations, Enid Dam, Yocona River, Mississippi
Summary: Enid Dam, a unit in the flood-control plan for the Yazoo River, is a rolled-fill structure about 85 ft high and 8400 ft long, and contains about 5-3/4 million cu yd of fill. digital.library.unt.edu/ark:/67531/metadc853070/
Review of Soils Design, Construction, and Performance Observations: Benbrook Dam, Texas
"This report contains a summary of construction of procedures and field observations made during and after construction of Benbrook Dam, a brief review of the original design data, and comparisons of design predictions with performance data" (p. 1). It is part of a series to compare field experience and performance of existing structures with design predictions. digital.library.unt.edu/ark:/67531/metadc303893/
Review of Soils Design, Construction, and Performance Observations, John H. Kerr project (Buggs Island and Island Creek Dams) Virginia
This report contains general background information about the John H. Kerr project, which comprises a retaining structure, Buggs Island Dam, and a backwater protection structure, Island Creek Dam. It also provides more detailed information about the design, construction, and prototype observation of each of the dams. digital.library.unt.edu/ark:/67531/metadc303891/
Review of Soils Design, Construction, and Performance Observations: Lookout Point Dam, Oregon
This report reviews the performance of the Lookout Point Dam located on the Middle Fork of the Willamette River in Oregon. "This study is one of a series of similar studies of the foundation and soil mechanics features of earth dams [...] In these studies original design data are reviewed, construction experience is summarized, and performance fo the completed structures is compared with design predictions to provide information for use in the design and construction of future similar projects" (p. 1). digital.library.unt.edu/ark:/67531/metadc303896/
Review of Soils Design, Construction, and Performance Observations: Tom Jenkins Dam, Ohio
This report provides a summary and analysis of field observations and performance of the Tom Jenkins Dam in Ohio, compared with original design predictions. digital.library.unt.edu/ark:/67531/metadc303894/
Review of Soils Design, Construction, and Prototype Analysis: Blakely Mountain Dam, Arkansas
This report provides a review of the design and performance of the embankment and foundation of Blakely Mountain Dam in Arkansas. "This study is one of a series of similar studies of the foundation and soil mechanics features of earth dams [...] In these studies field experience is analyzed and performance of the completed structures is compared with design predictions to provide information for use in the design and construction of future projects" (p. 1). digital.library.unt.edu/ark:/67531/metadc303887/
Review of some recent data on buffet boundaries
No Description digital.library.unt.edu/ark:/67531/metadc58870/
Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof
Report issued by the U.S. Bureau of Mines over state mine inspection reports from 19 U.S. states. The information in the reports includes details of accidents, locations that specific accidents occurred, and proposed remedies for prevention of future accidents. This report includes tables. digital.library.unt.edu/ark:/67531/metadc67001/
Review of status, methods and potentials of gas-turbine air-cooling
No Description digital.library.unt.edu/ark:/67531/metadc60923/
A Review of the American Moles
Discusses habits; economic status; characteristics and development of young; pelages and molts; and geographic, individual, sexual, and age variation. Describes subfamilies, history, and generic names of the family Talpidae. Describes, lists locations, and provides a key for genera, species and subspecies. digital.library.unt.edu/ark:/67531/metadc700950/
Review of the Analyses of the Doppler-Effect Measurements in SEFOR (Southwest Experimental Fast Oxide Reactor)
The SEFOR experimental results and the three original analyses are reviewed and discussed. The emphasis of the review is placed on aspects that are pertinent to a possible modern re-analysis of the experimental results. Looking at the analysis results in terms of zero and first order effects shows that the zero order effects, the Doppler constant of the two SEFOR cores, are obtained by the three analyses in satisfactory agreement. But the first order effects, but temperature variation of this Doppler-constant quantity, cannot be determined with any informative accuracy. Since this is likely due to limitations in the experiments, a re-analysis - except for methodological reasons - does not appear to be fruitful. digital.library.unt.edu/ark:/67531/metadc282843/
Review of the Grizzly and Big Brown Bears of North America (Genus Ursus): with Description of a New Genus, Vetularctos
Discusses distribution,sexual and age differences, specimens, and classification of North American grizzly and big brown bears. Describes and lists locations of species and subspecies. Mentions Vetularctos, a new genus related to Ursus. digital.library.unt.edu/ark:/67531/metadc700956/
Review of the Heaving-Shale Problem in the Gulf Coast Region
Report issued by the U.S. Bureau of Mines over the ongoing issue of heaving-shale in the Gulf Coast area. The operations and potential causes of incompetent heaving-shale are listed. This report includes tables, and a map. digital.library.unt.edu/ark:/67531/metadc38439/
Review of the maximum-lift characteristics of thin and swept wings
No Description digital.library.unt.edu/ark:/67531/metadc64856/
A Review of the Physical and Engineering Properties of Raw and Retorted Oil Shales from the Green River Formation: Final Report
"This report summarizes published geotechnical properties of raw and retorted oil shales from the Green River Formation. Basic physical properties including gradation, specific gravity and Atterberg limits and engineering properties including compaction, permeability, settlement, soundness, and strength are summarized and discussed. Where appropriate, conclusions are drawn about the suitability of retorted oil shales as a geotechnical construction material. Appendix A discusses three retorting processes used to extract oil from oil shale" (abstract, para. 2-3). digital.library.unt.edu/ark:/67531/metadc304006/
A review of the physical and thermodynamic properties of boric oxide
No Description digital.library.unt.edu/ark:/67531/metadc63184/
A review of the thermodynamic, transport, and chemical reaction rate properties of high-temperature air
Thermodynamic and transport properties of high temperature air, and the reaction rates for the important chemical processes which occur in air, are reviewed. Semiempirical, analytic expressions are presented for thermodynamic and transport properties of air. Examples are given illustrating the use of these properties to evaluate (1) equilibrium conditions following shock waves, (2) stagnation region heat flux to a blunt high-speed body, and (3) some chemical relaxation lengths in stagnation region flow. digital.library.unt.edu/ark:/67531/metadc57473/
A Review of the Utilization of Fission Fragment Energy for the Fixation of Nitrogen
Report issued by the Brookhaven National Laboratory discussing methods of nitrogen fixation, and their economic impacts. As stated in the introduction, "studies are described on circulating dust fuels, as well as fixed plated, porous bed, and other types of fuels as the basis for chemo-nuclear reactor designs, and the various fuel systems are compared on a technical and economic basis" (p. 3). This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc170962/
A Review of Two-Phase Flow-Induced Vibration
Two-phase flow exists in many shell-and-tube heat exchangers and power generation components. The flowing fluid is a source of energy that can induce small-amplitude subcritical oscillations and large-amplitude dynamic instabilities. In fact, many practical system components have experienced excessive flow-induced vibrations. To prevent unacceptable flow-induced vibration, we must understand excitation mechanisms, develop analytical and experimental techniques, and provide reliable design guidelines. Thus, we are conducting a comprehensive program to study structural vibration in components subjected to two-phase flow. This report reviews the current understanding of vibration of circular cylinders in quiescent fluid, cross-flow, and axial flow, with emphasis on excitation mechanisms, mathematical models, and available experimental data. A unified theory is presented for cylinders oscillating under different flow conditions. Based on the theory, future research needs are outlined. digital.library.unt.edu/ark:/67531/metadc282835/
A revised formula for the calculation of gust loads
No Description digital.library.unt.edu/ark:/67531/metadc57283/
A revised gust-load formula and a re-evaluation of v-g data taken on civil transport airplanes from 1933 to 1950
A revised gust-load formula with a new gust factor is derived to replace the gust-load formula and alleviation factor widely used in gust studies. The revised formula utilizes the same principles and retains the same simple form of the original formula but provides a more appropriate and acceptable basis for gust-load calculations. The gust factor is calculated on the basis of a one-minus-cosine gust shape and is presented as a function of a mass-ratio parameter in contrast to the ramp gust shape and wing loading, respectively, used for the alleviation factor. A summary of gust-velocity data from v-g records taken on civil transport airplanes from 1933 to 1950, reevaluated by the revised formula, is also presented. digital.library.unt.edu/ark:/67531/metadc65563/
Revised Z Tables of the Rach Coefficients
From introduction: "54 tables are given of the Z coefficients." digital.library.unt.edu/ark:/67531/metadc100316/
Revision of American Voles of the Genus Microtus
From introduction: "Synopsis of American voles based on a study of between 5,000 and 6,000 specimens from more than 800 localities." digital.library.unt.edu/ark:/67531/metadc700991/
A Revision of Computer Code POWERCO (Cost of Electricity Produced by Nuclear Power Stations) to Include Breakdowns of Power Cost and Fixed Charge Rates
Report that "describes a new version of the code, POWERC-50, which contains several changes" to the previous code, POWERCO-25, which was used to calculate "the levelized cost of electricity produced by nuclear power stations" (p. 1) digital.library.unt.edu/ark:/67531/metadc100495/
Revision of the American Chipmunks: (Genera Tamias and Eutamias)
Brief summary of the geographic distribution, life history, and subgenera of genera Tamias and Eutamias. digital.library.unt.edu/ark:/67531/metadc701007/
Revision of the American Flying Squirrels
Habits, voice, nests, breeding, food, economic status, pelage and molt, and descriptions of species and subspecies of the American flying squirrels. digital.library.unt.edu/ark:/67531/metadc700995/
Revision of the American Harvest Mice: (Genus Reithrodontomys)
Discusses history, specimens, habits, economic status, food, and pelages of American harvest mice. Lists locations and provides a key to species and subspecies, and provides species descriptions. digital.library.unt.edu/ark:/67531/metadc700936/
Revision of the American Lemming Mice (Genus Synaptomys)
Brief summary of the geographic distribution, habits, history, and subgenera of Synaptomys. digital.library.unt.edu/ark:/67531/metadc700952/
Revision of the American Marmots
Discusses history, nomenclature, common names, habits, external characters, and specimens of American marmots. Describes, lists locations, and provides a key to species and subspecies. digital.library.unt.edu/ark:/67531/metadc700979/
Revision of the American Pikas (Genus Ochotona)
Discusses distribution, habitat, habits, pelage, molt, specimens, history, and nomenclature of pikas. Provides descriptions, locations, and a key for species and subspecies. digital.library.unt.edu/ark:/67531/metadc700982/