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Thorium Isotopes Method for Dating Marine Sediments

Description: This thesis is concerned with a possible method of improving the well-known ionium method of age determination of deep-sea sediment sections (Pet-53, Zou-58, Kul-55, Ran-54) both with respect to accuracy of individual determinations and with respect to the range of applicability of the method.
Date: May 31, 1960
Creator: Almodóvar, Ismael
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inorganic Electrolytes in Anhydrous Acetonitrile

Description: "The properties of solutions of KI, AgNO/sub 3/, CoCl/sub 2/, and CoBr/ sub 2/ in anhydrous acetonitrile were studied by means of measurements of electric conductance, density, viscosity, and spectrophotometry. The data are examined in the light of theoretical concepts of electrolytes. The properties of acetonitrile as an ionizing solvent are discussed briefly, and a summary of existing information for inorganic salts in this solvent is presented."
Date: July 1961
Creator: Janz, George J. & Marcinkowsky, A E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An approach to the study of solid state bonding

Description: This report constitutes a review of theory, experimental approach, and means of evaluation involved in the program "An Approach to the Study of Solid State Bonding." Inasmuch as the experimental activity ceased prior to the end of the contract period, adequate data are not available with which to illuminate the area of investigation; therefore, this report should not be considered as a report of a completed project.
Date: 1959
Creator: Steele, R. K. & Kozol, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Survey of Component Requirements and Availability for Gas-Cooled Nuclear Reactor Power Plants

Description: "Expressions were derived for cycle thermal efficiency, work ratio, related useful work, and relative temperatures, and pressures at significant stations, all for a representative direct closed gas-turbine cycle. A parametric study of this cycle was performed for He and N/sub-2/ as coolants. Results of this parametric study are given in tables and charts. Four different cycles, corresponding to the maximum cycle temperatures equal to 1300, 1500, 1700, and 2000 deg F, were established for each o… more
Date: unknown
Creator: Novickis, G. & Zudans, Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Pressure Pump Seal Development, Engineering Quarterly Progress Report: September-November 1962

Description: "The full size seal (5 1/2" shaft diameter) was redesigned to incorporate the latest seal geometry which was developed as a result of the model seal test program. A number of compatible seal face material combinations, which performed satisfactorily during the model seal test program, was also selected for evaluation in the full size seal. All the detail drawings of the seal and test stand were completed. A test program for the full size seal was prepared and approved."
Date: unknown
Creator: Hajner, Robert C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Pressure Pump Seal Development, Engineering Quarterly Progress Report: December 1962-February 1963

Description: "The model seal test program was continued throughout the period covered by this report. Of notable mention, a test, 507 hours in duration, was conducted at 2000 psig and 2.75 GPH leakage. Examination of the seal faces after the test showed that there was no measurable wear within the limits of an optical inspection. The full size seal (5-1/2" shaft diameter) and the related test strand are in the manufacturing phase. The instrumentation and associated equipment for the full size seal test are … more
Date: unknown
Creator: Hajner, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Survey of Component Requirements and Availability for Gas-Cooled Nuclear Reactor Power Plants

Description: "Helium, nitrogen, carbon dioxide, and other gases suitable as reactor coolants were evaluated. It is shown that because of the helium conservation program, recently authorized by legislation, sufficient helium will become available for domestic power plants and for the requirements of the Euratom group. Tables of thermodynamic properties for helium and molecular nitrogen were computed from the Beattie-Bridgman equation of state. Specific enthalpy, specific entropy, isobaric specific heat, spec… more
Date: unknown
Creator: Zudans, Zenons & Goff, John A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Pressure Pump Seal Development, Engineering Quarterly Progress Report: March-May 1963

Description: "The model seal test program was concluded during this Quarterly Report. The final test, 1014 hours in duration, was conducted at a sea1ing pressure of between 2100 to 2300 psig and at a leakage rate of 2.14 gph. The seal face materials evaluated were an aluminum oxide rotor running against a stator face made of tungsten carbide for the high pressure seal and Graphitiar 39 for the low pressure element. Optical examination of the faces after the test showed no measurable wear. Nine unscheduled s… more
Date: unknown
Creator: Hajner, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gravitational Instability and One-Component Plasma Oscillations

Description: "A kinetic study is made of a system of neutral particles which interact under gravitational forces. The Jeans instability is recaptured in the limit of long wavelengths where the growth rate assumes a characteristic maximum value. As the wavelength diminishes to a certain critical distance, the instability vanishes. This distance is consistent with thermal-gravitational estimates for the diameter of a star. Plasma oscillations are found in the central region of a one-component charged gas clou… more
Date: unknown
Creator: Liboff, Richard L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sound Propagation according to Kinetic Models

Description: "Sound propagation and the initial value problem in kinetic theory are investigated. Linearized forms of certain kinetic models suggested by Gross and Jackson employed. The most general model contains three relaxation times and is capable of producing Euler, Navier-Strokes, Burnett and thirteen moments equations for smooth phenomena. A study of dispersion relations is made and some novel features are uncovered. One finds that kinetic models are unable to describe phenomena of higher than a cert… more
Date: unknown
Creator: Sirovich, Lawrence & Thurber, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Canonical Theory of Motion of a Charged Particle in a Slowly Varying Electromagnetic Field

Description: "The canonical theory of motion of a charged particle in a slowly varying, static electromagnetic field is formulated. The Hamiltonian is written down explicitly in terms of the coordinates of the gyration and the drift. The method of approach is analogous to that of the canonical formalism with subsidiary condition as used in theories of collective motion in many-body systems, such as the motion of the center of gravity. In the lowest order of the perturbation, it is shown that the Hamiltonian… more
Date: unknown
Creator: Taniuti, Tosiya
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Scattering Constant for Doubly Charged Particles in Nuclear Emulsion

Description: "An experiment in which a nuclear emulsion stack of 25 Ilford G-5 emulsion pellicles were exposed to 925-Mev He^4 nuclei is described. The tracks of the He nuclei entering the stack were followed in the stack until they interacted or stopped. From the data the scattering constants for He^4 and He^3 were calculated."
Date: unknown
Creator: Appa Rao, M. V. K. & Yamanouchi, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Exact Eigenfunctions of Spin and Angular Momentum Using the Projection Operator Method

Description: "The projection operator technique is used to generate electronic wave functions which are eigenfunctions of both spin and orbital angular momentum. All the functions which arise in the L-S coupling of any allowed system of electrons in a single s, p, d, or f shell are computed as well as some functions for a few electrons in the g-shell. In addition, functions arising in the coupling of electrons in different shells are obtained, and these eigenfunctions are of particular interest in configura… more
Date: unknown
Creator: Rotenberg, Aubey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Convergence of the Perturbation Expansion in Some Models of the Field Theory

Description: "It is shown that in a class of models of quantum field theory, the perturbation expansion of the resolvent operator, (H - z)-1, converges for all complex z. The class of models consists of all theories with Yukawa coupling in which the vacuum polarization is neglected. The method used is that of comparison with the exactly solvable neutral solar model."
Date: unknown
Creator: Bialynicki-Birula, I. & Frank, William M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Utilization of Radioactive Isotopes in Coal Process Research Quarterly Status Report: June-August 1961

Description: "The experimental technique was checked out and the equipment put in working order for the study of the capacity and efficiency of the hydraulic cleaning of coal by water fluidization. The method to determine operating capacity consists of determining the segregation rate by dynamic tracing of radioactive mineral impurities of various size and density ranges, that are injected into the fluidized bed of coal. The equilibrium position of the injected tracer in the fluidized bed of solids is also … more
Date: unknown
Creator: Yavorsky, P. M. & Gorin, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Utilization of Radioactive Isotopes in Coal Process Research Quarterly Status Report: Spetmeber-November 1961

Description: "Experiments are continuing to determine the cleaning efficiency and rate of cleaning of fine size bituminous coals by the water fluidization method. By radio-tracing neutron activated pyrites, data were obtained on the rate of segregation of mineral impurities from the coal as a function of particle size and density in a 48 x 0 mesh hydraulic fluidized coal bed. Two methods of radio- tracing were demonstrated. The ultimate cleaning efficiency of the above size coal is also reported."
Date: unknown
Creator: Yavorsky, P. M. & Gorin, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report on Project at (30-1)1018: Polar-Nonpolar or Amphipathic Inorganic Compounds

Description: "Results of molecular studies showed that, depending on the chemical composition, polyphosphates are either linear or branched flexible chain molecules. The branch points were easily destroyed by hydrolysis. Hydrolytic stability studies showed that the rate constants are much smaller for the splitting of internal bonds than for the hydrolysis near the chain ends, where both monomeric and trimeric rings are formed. The kinetic study of the degradation of sodium pentaphosphate was continued. Prel… more
Date: unknown
Creator: Strauss, U. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Finite Conductivity on the Propagation of Hydromagnetic Slow Waves

Description: "The one-dimensional propagation of disturbances in an inviscid conducting fluid of finite magnetic Reynolds number is investigated. The basic equations are not hyperbolic but nevertheless the slow wave has a domain of dependence determined by the sound velocity."
Date: unknown
Creator: Taniuti, Tosiya
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Progress Report on the Mach Reflection Calculation

Description: "Mathematical methods are being developed for calculations in fluid dynamics. The work to date on the Mach reflection calculation is summarized. In the flow, there are two curved shocks, a slip surface, a plane shock, and rigid walls. The desired solution of the fluid-dynamics equations is stationary in similarity variables; approximate initial data are therefore assumed, with the expectation that the flow will settle down to the desired one asymptotically. The Eulerian equations for the smooth… more
Date: unknown
Creator: Richtmyer, Robert D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Statistical Analysis of the Frequency and Severity of Accidents to Potential Highway Carriers of Highly Radioactive Materials

Description: "The probability of accidents to tractor semitrailers is developed through analysis of accident frequency data in relation to season; geographical factors; road type, traffic, and population density; and type of carrier business. Maximum likelihood rates are developed for the potential carriers of radioactivity. Impact characteristics of accidents are studied through the analysis of mass, speed, and energy relations, and the effect of these on vehicle and cargo damages is explored."
Date: unknown
Creator: Karson, M. J. & Thompson, J. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reaction Studies with Fast Neutrons

Description: "A new 350 KV power supply was installed, and major modifications of the accelerator were completed. The changes include the installation of new focusing and extractor supplies, an extension of the accelerator column, and the replacement of the isolation transformer by a motor generator set. Improved performance at voltages up to 200 KV was obtained, but a modification of the electrostatic lens system will be required for operation at 350 KV. The results of an investigation of the C/sup 12/(n, … more
Date: unknown
Creator: Maxson, D. R. & Peck, Jr., R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Power Flattening Studies for Radioisotope-Thermoelectric Generators

Description: "The natural exponential decay of a radioisotope used as a heat source for a thermoelectric generator makes the use of a power flattening'' device highly desirable, especially when the duration of the mission is large compared to the half-life of the radioisotope. Power-flattening devices are considered which either dump excess heat outside the thermoelectric generator or use the characteristics of the generator to absorb the excess heat and thereby regulate the hot junction temperature. A numb… more
Date: unknown
Creator: Rush, R. E. & Belofsky, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Development of Compression Waves in an Adiabatic Two-Fluid Model of a Collision-Free Plasma

Description: "A generalized discontinuous solution was found for the adiabatic two- fluid equations in the steady state: it covers the case of strong shocks and enables a complete account to be made of the steady state solutions of these equations. By considering a piston problem using numerical methods, time dependent solutions of the equations were also found; these rapidly steepened and converged to the discontinuous steady state solutions whenever these existed."
Date: unknown
Creator: Morton, K. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reaction Studies with Fast Neutrons

Description: "The modified accelerator performed well at voltages up to 200 kv, and construction of a 350-kv acceleration tube was initiated. An all-solid-state telescope was completed, and a (dE/dx x E) pulse multiplier was almost finished. These instruments will be used with a new analyzer to permit simultaneous recording of (n,p), (n,d), and (n,t) spectra. An analysis of previous data on LiT/sup 7/d, alpha) He/sup 5*/ yields alpha + n showed that the first He/sup 5/ excited state is at 2.6 plus or minus … more
Date: unknown
Creator: Maxson, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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