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Prototype gauge for measuring contour and wall thicknesses of hemispherical parts. [Interferometer]
A prototype gauge (gage) was designed and fabricated using air bearings in a new configuration to provide less error and distortion during inspection of hemispherical parts. No wear occurs on the moving parts during operations and accuracy of alignment is maintained. The gauge will check outside radial distance, inside radial, and outside radial and wall, and inner radial and wall thicknesses of parts. The gauge contains only four moving parts, which increases the measuring accuracy. A horizontal table rotates. A table mounted on the horizontal table at 45/sup 0/ rotates through two transducers. All moving parts are mounted on hydrostatic gas bearings. Laser interferometric, air-bearing gauge heads are used to obtain the required data. Investigation of a hemispherical part is in any desired spiral path from equator to pole. Measurement information is obtained from two laser interferometric transducers using linear air bearings. The transducers use a Spectra Physics Model-120 helium and neon laser. Working range of each transducer is 1.5 inches. The fringe voltage signals are amplified and converted to inches to be displayed on a digital readout. A punched paper tape contains the nominal inside diameter (ID) and outside diameter (OD) information in Binary Coded Decimal form. The tape …
Date:
March 1, 1976
Creator:
Aarts, H. J. & Robertson, J. H.
Object Type:
Report
System:
The UNT Digital Library
Catalog of Abilene Christian University, 1976-1977
Undergraduate catalog describes the governance, history, course offerings, and campus life of Abilene Christian University in Abilene, Texas.
Date:
March 1976
Creator:
Abilene Christian University
Object Type:
Book
System:
The Portal to Texas History
Hill Country News (Austin, Tex.), Vol. 8, No. 9, Ed. 1 Thursday, March 4, 1976
Weekly newspaper from Austin, Texas that includes news and information about communities on Lake Travis and in surrounding areas along with advertising.
Date:
March 4, 1976
Creator:
Acker, Cliff
Object Type:
Newspaper
System:
The Portal to Texas History
Hill Country News (Austin, Tex.), Vol. 8, No. 10, Ed. 1 Thursday, March 11, 1976
Weekly newspaper from Austin, Texas that includes news and information about communities on Lake Travis and in surrounding areas along with advertising.
Date:
March 11, 1976
Creator:
Acker, Cliff
Object Type:
Newspaper
System:
The Portal to Texas History
Convair Weekly Report to Supervision, Number 976, March 17, 1976
Newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
March 17, 1976
Creator:
Adams, Richard E.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convair Weekly Report to Supervision, Number 977, March 31, 1976
Newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
March 31, 1976
Creator:
Adams, Richard E.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
ACTVE News, Volume 7, Number 3, March 1976
Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.
Date:
March 1976
Creator:
Advisory Council for Technical-Vocational Education in Texas
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Environmental monitoring report for Pantex Plant covering 1975
During 1975 Pantex Plant conducted a monitoring program to determine the concentration of specific radioactive and non-radioactive species in the local environment. Although the plant activities involve the handling of significant quantities of uranium, plutonium and tritium, only small releases of uranium (depleted in the isotope /sup 235/U) and tritium occurred which could have affected the local environment. Monitoring data indicate that concentrations of these nuclides in the environment are below established criteria for air and water and therefore should not present a health hazard either to employees or to the public.
Date:
March 5, 1976
Creator:
Alexander, R.E.
Object Type:
Report
System:
The UNT Digital Library
Plasma experiments with 1. 06. mu. m lasers at Lawrence Livermore Laboratory
Recent laser fusion experiments at Lawrence Livermore Laboratory have provided basic data concerning laser beam propagation and absorption in high temperature plasmas, electron energy transport processes that transfer the absorbed laser energy to the high density ablation region, the general fluid dynamic expansion and compression of the heated plasma, and the processes responsible for the production of 14 MeV neutrons during implosion experiments. This paper reports results related to the propagation, absorption and scattering of laser light by spherical and planar targets.
Date:
March 12, 1976
Creator:
Alhlstrom, H. G.; Holzrichter, J. F.; Haas, R. A.; Storm, E. K.; Manes, K. R.; Phillion, D. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Estimated inventory of chemicals added to underground waste tanks, 1944--1975. [Analysis of sludges and salt cakes]
The five major chemical processes, the Bismuth Phosphate process, the Uranium Recovery process, the Redox process, the Purex process, and the Waste Fractionization process have each contributed to give the total Hanford waste chemicals. Each of these processes is studied to determine the total estimated chemicals stored in underground waste tanks. The chemical contents are derived mainly from flowsheet compositions and recorded waste volumes sent to underground storage. The major components and amounts of Hanford waste are sodium hydroxide, 230 million gram-moles (20 million pounds), sodium nitrate, 1400 million gram-moles (270 million pounds), sodium nitrite, 220 million gram-moles (34 million pounds), sodium aluminate, 400 million gram-moles (72 million pounds), and sodium phosphate, 87 million gram-moles (31 million pounds). Chemical analyses of the sludge and salt cake samples are tabulated to determine the chemical characteristics of the solids. A relative chemical toxicity of the Hanford underground waste tank chemicals is developed from maximum permissible chemical concentrations in air and water. The most toxic chemicals are assumed to be sodium phosphate--35%, sodium aluminate--28%, and chromium hydroxide--19%. If air standards set toxicity limits, the most toxic chemicals are bismuth--41%, chromium hydroxide--23%, and fluoride--10%.
Date:
March 1, 1976
Creator:
Allen, G. K.
Object Type:
Report
System:
The UNT Digital Library
Bremsstrahlung convertors: materials design and development
An improved bremsstrahlung convertor for use at high electron beam energies was developed. The convertor consists of three main components: (1) conversion foil; (2) electron scavenger; and (3) impulse shield. Structural failures of the impulse shield were experimentally determined to be caused by shock wave interactions. Convertor materials and design modifications were aimed at attenuation of the magnitude of the shock and maximization of energy absorption by the convertor materials. Techniques proven successful included the introduction of porosity into electron scavenger and impulse shield materials, the use of a standoff between the conversion foil and the electron scavenger, the insertion of a gap between the scavenger and impulse shield, and the use of advanced composite materials for the impulse shield. These modifications have increased the convertor operating range from 4 cal/gm Au to over 8 cal/gm Au. Kevlar 49 reinforced-resin composites have proven to have the best combination of strength, stiffness, toughness, and x-ray transport properties for use as bremmstrahlung convertor impulse shields.
Date:
March 1, 1976
Creator:
Allred, R. E.
Object Type:
Report
System:
The UNT Digital Library
Resistance of bonded composite joints to out-of-plane forces
An analytical and experimental study was conducted to examine the mechanical behavior of double-lapped adhesive-bonded joints subjected to bending loads. Adherends consisted of a U-shaped high-strength steel hub and a unidirectional composite of either B/Al or B/epoxy. Adhesives with a range of moduli and peel strengths were evaluated with and without bolts in regions of high stress concentration. Finite element analysis results indicated high shear and normal stress concentrations at the end of the steel hub legs. These concentrations are a direct function of the effective hub stiffness - increases in hub thickness or Young's modulus result in higher adhesive stresses. Stress concentrations in the adhesive layer may be reduced by decreasing adhesive modulus, composite transverse modulus, or composite in-plane shear modulus. Experimental testing of sample joints revealed that failure modes are controlled by the composite adherend material. Joints incorporating a B/Al adherend failed by adhesive peel in the region of high stress concentration. Failure occurred at a load level which stressed the B/Al composite to 75 percent of its 200 ksi ultimate strength. Delamination of the B/epoxy composite was the predominant failure mode of joints utilizing a B/epoxy adherend. Failure by delamination was suppressed by the insertion of high-strength …
Date:
March 1, 1976
Creator:
Allred, R. E. & Guess, T. R.
Object Type:
Report
System:
The UNT Digital Library
Uncertainties in Calculated Heating and Radiation Damage in the Toroidal Field Coil of a Tokamak Experimental Power Reactor Due to Neutron Cross-Section Errors
Calculated results are presented of the uncertainties in the neutron scalar flux, the energy deposition per unit volume, and the displacements per atom in the toroidal field coil of a tokamak experimental power reactor due to neutron cross-section errors in iron and carbon which are major constituents of the blanket-shield-coil configuration considered. The calculations were carried out using perturbation theory to obtain sensitivity profiles for the various cross sections of interest, and these profiles were then combined with cross- section error estimates, including correlations, to obtain the uncertainties. Each of the three responses--the neutron scalar flux, the energy deposition per unit volume, and the displacements per atom--is found to be very sensitive to the cross sections in the energy group which contains the source (approximately 14 MeV since a D-T source is assumed), and each of the responses is found to have a relative standard deviation of approximately 100 percent due to neutron cross- section errors in iron.
Date:
March 1, 1976
Creator:
Alsmiller, R. G., Jr.; Barish, J. & Weisbin, C. R.
Object Type:
Report
System:
The UNT Digital Library
Approach to ferromagnetism in amorphous Ni--P--B alloys
Magnetization was measured between 1.7 and 300/sup 0/K in fields up to 70 kOe on splat-cooled Ni--P--B amorphous alloys in the critical concentration range for the appearance of ferromagnetism. The onset of ferromagnetism is attributed to interactions between giant moments. For the composition range investigated, the magnetic contribution is arising mainly from moments of 5 to 6 ..mu../sub B/ with a Kondo-type characteristic temperature of 1/sup 0/K.
Date:
March 1, 1976
Creator:
Amamou, A. & Durand, J.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 28, Number 7, March 1976
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
March 1976
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Newsletter of the Texas Chapter of the American Fisheries Society, Number 1, March 1976
Newsletter of the Texas Chapter of the American Fisheries Society containing information about the organization, membership, and field of aquaculture and ecosystem management.
Date:
March 1976
Creator:
American Fisheries Society. Texas Chapter.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Radioactivity in gaseous waste discharged from the separations facilities during 1975
During 1975, approximately 1.33 x 10/sup 13/ liters of gaseous effluents were monitored for radioactivity by the stack sampling program. A summary of the measured radioactivity was as follows: alpha (assumed source--Pu)--1.45 x 10/sup -3/ Ci and beta--0.418 Ci.
Date:
March 12, 1976
Creator:
Anderson, J. D.
Object Type:
Report
System:
The UNT Digital Library
Computer-based structural investigation of the SY-103 waste storage tank which contains an out-of-tolerance bottom bump
A computer-based structural analysis was performed on the inner tank of SY-103 in the 241-SY tank farm on the Hanford reservation. The objectives of this study were to determine the general stress condition of the inner tank for selected water-fill, hydrotest heights, and, to investigate the magnitude of local stresses in the vicinity of an out-of-tolerance ''bump'' on the bottom of the inner tank under a loading equivalent to the anticipated waste storage condition. Results show that the stresses induced in flat-bottomed tank, due to hydrotest water-fill are quite low until fill heights in excess of 45 feet are encountered. Filling beyond this level, circumferential membrane compressive stresses in the upper knuckle become great enough to cause concern about the possibility of buckling. If the upper knuckle portion of the tank is effectively supported by the reinforced concrete roof when fill heights of approximately 43 feet are exceeded, the calculated stresses would not develop. Investigation of the measured bottom bump in SY-103 indicates that total flattening will not quite occur under the anticipated operating conditions. Results show that there will be no localized yielding of the tank inner surface when it is filled to normal height with terminal waste slurry …
Date:
March 1, 1976
Creator:
Anderson, W. E.; England, R. L.; Friley, J. R. & Vagins, M.
Object Type:
Report
System:
The UNT Digital Library
One-dimensional model for coaxial flowing streams with condensation. [Developed for application to laser isotope separation]
An analytical model was developed to identify the basic phenomena present in the high temperature flow (2700/sup 0/K) of two gaseous coaxial streams. The one-dimensional model potentially has application for design of hardware and test conditions for conducting a laser isotope separation feasibility experiment. The processes of interest are those of coupled flow dynamics, liquid condensation of metal vapors, and gaseous diffusion. The stream tubes may initially consist of pure or combinations of an inert carrier--nitrogen, or metal vapor--uranium. A computer code, LISP (Laser Isotope Separation Program), follows from the model. Output from the LISP code is presented in three test cases. They involved stream differences in velocity up to 90,000 mm/sec and in temperatures of 1100/sup 0/K. The rate controlling process for the cases cited was found to be diffusion. However, condensation was present. Further use of the LISP code should continue to give a better understanding into the coupled processes of diffusion, condensation, and flow dynamics.
Date:
March 1, 1976
Creator:
Andes, S.
Object Type:
Report
System:
The UNT Digital Library
San Antonio Register (San Antonio, Tex.), Vol. 44, No. 38, Ed. 1 Friday, March 5, 1976
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1976
Creator:
Andrews, U. J.
Object Type:
Newspaper
System:
The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 44, No. 39, Ed. 1 Friday, March 12, 1976
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
March 12, 1976
Creator:
Andrews, U. J.
Object Type:
Newspaper
System:
The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 44, No. 40, Ed. 1 Friday, March 19, 1976
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
March 19, 1976
Creator:
Andrews, U. J.
Object Type:
Newspaper
System:
The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 44, No. 41, Ed. 1 Friday, March 26, 1976
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
March 26, 1976
Creator:
Andrews, U. J.
Object Type:
Newspaper
System:
The Portal to Texas History
Explosive Interaction of Molten UO2 and Liquid Sodium
The interim report presented describes a continuation of the work reported in ANL-7890, Interaction of Sodium with Molten Uranium dioxide and Stainless Steel Using a Dropping Mode of Contact. In the current study, sodium was injected into a pool of molten uranium dioxide. The experiment consistently produced vapor explosions, both with the injection nozzle above and beneath the surface of the uranium dioxide. Although the efficiency of the conversion of thermal to mechanical energy was small (due in part to very conservative data analysis and an inefficient geometry), the results did demonstrate that there is no intrinsic reason why reactor materials cannot produce a vapor explosion.
Date:
March 1976
Creator:
Armstrong, D. R.; Goldfuss, G. T. & Gebner, R. H.
Object Type:
Report
System:
The UNT Digital Library