Advanced waste forms research and development. Annual report (open access)

Advanced waste forms research and development. Annual report

Research and development activities on advanced (alternatives to glass) nuclear waste forms are reported. The emphasis is on two phases of the work to give essential background information on supercalcine development. The first is a report of the data obtained in the study of cesium aluminosilicate for Cs and Ru fixation. Research on the compatibility of the phases formed in the complex oxide system made up of waste and additive cations is reported. The phase stability in a number of proposed formulations was determined. (JSR)
Date: June 11, 1975
Creator: McCarthy, G. J.
Object Type: Report
System: The UNT Digital Library
Advanced waste forms research and development. Annual report (open access)

Advanced waste forms research and development. Annual report

Thermogravimetric analysis on cesium aluminosilicates was performed. Pollucite, CsAlSi/sub 2/O/sub 6/, appears to have more than adequate thermal stability for Cs fixation in supercalcine. The possibility of leaving Ru as RuO/sub 2/ during supercalcine crystallization is being assessed. The apatite solid solution (A/sub ss/) phases used in supercalcine phase formation models have been easily prepared as pure phases. Use of Ca instead of Sr as an alkaline earth additive yields a more stable A/sub ss/ phase. Weight ratios have been optimized for two firing temperatures in terms of soxhlet leachability. However, this is not the preferred approach to supercalcine consolidation. The phase formation models developed for PW-4b-type wastes were routinely applied to PW-7, in spite of several significant composition differences in the latter. Uranium oxide remains as a fluorite structure oxide after supercalcine crystallization, but it does seem to have incorporated either or both CeO/sub 2/ or ZrO/sub 2/. Characterization of this F/sub ss/ phase will require further study. Based on observations during several complex compatibility studies, it appears that good overall thermal stability at as high as 1200/sup 0/C might be attainable for nepheline based supercalcine formulations. A thorough literature review of the oxide crystal chemistry of Te has …
Date: June 11, 1976
Creator: McCarthy, G. J.
Object Type: Report
System: The UNT Digital Library
An Analysis of the Better Communities Act (open access)

An Analysis of the Better Communities Act

This report analyzes the provisions of the Better Communities Act which provided federal funds to local and state governments for use in community development projects.
Date: June 11, 1973
Creator: Farb, Warren E.
Object Type: Report
System: The UNT Digital Library
Changing Concepts of Busing for Integration Pro and Con Selected References (open access)

Changing Concepts of Busing for Integration Pro and Con Selected References

This report discusses the changing concept of busing for integration pro and con. It also points out several references such as Achieving Racial Balance, Balancing Imbalance, Brown and Bussing etc.
Date: June 11, 1970
Creator: Miller, Helen A.
Object Type: Report
System: The UNT Digital Library
Heating uranium alloy billets. [0. 75% Ti, 6% Nb, or 7. 5% Nb--2. 5% Zr] (open access)

Heating uranium alloy billets. [0. 75% Ti, 6% Nb, or 7. 5% Nb--2. 5% Zr]

Data were obtained for the surface heat transfer coefficient of uranium and the alloys of uranium-0.75 wt percent titanium, uranium-6 wt percent niobium, and uranium-7.5 wt percent niobium-2.5 wt percent zirconium. Samples were heated to 850/sup 0/C in both a molten salt bath and an argon-purged air furnace, then the samples were cooled in air. Surface heat transfer coefficients were calculated from the experimental data for both heating and cooling of the metals. 4 fig, 4 tables.
Date: June 11, 1976
Creator: Bieber, C. R.
Object Type: Report
System: The UNT Digital Library
High pressure mechanical properties of Indiana limestone (open access)

High pressure mechanical properties of Indiana limestone

None
Date: June 11, 1974
Creator: Heard, H. C.; Abey, A. E. & Bonner, B. P.
Object Type: Report
System: The UNT Digital Library
Limitations on Private Pension Benefits and Contributions - Problems in Establishing Equitability (open access)

Limitations on Private Pension Benefits and Contributions - Problems in Establishing Equitability

This report includes the limitations on private pension benefits and contributions, problems in establishing Equitability.
Date: June 11, 1975
Creator: Schmitt, Ray
Object Type: Report
System: The UNT Digital Library
Narcotic Addiction: Selected Bibliographic References (open access)

Narcotic Addiction: Selected Bibliographic References

This report provides a bibliography of resources related to narcotics addiction.
Date: June 11, 1970
Creator: Hogan, Harry L.
Object Type: Report
System: The UNT Digital Library
Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix B: trade-off studies. Volume I (open access)

Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix B: trade-off studies. Volume I

Trade-off studies of Near Term Hybrid Vehicle (NTHV) design elements were performed to identify the most promising design concept in terms of achievable petroleum savings. The activities in these studies are described. The results are presented as preliminary NTHV body design, expected fuel consumption as a function of vehicle speed, engine requirements, battery requirements, and vehicle reliability and cost. (LCL)
Date: June 11, 1979
Creator: Traversi, M. & Piccolo, R.
Object Type: Report
System: The UNT Digital Library
On setting magnets in the PEP beam-transport line (open access)

On setting magnets in the PEP beam-transport line

This paper discusses magnets in the PEP beam-transport line. Topics discussed are: conditioning, direction of excitation, rate of excitation; determination of the excitation current for the principal bend magnets; steering mechanisms; bump magnets; and determination of excitation currents of the quadrupole magnets. (LSP)
Date: June 11, 1979
Creator: Peterson, J. M.
Object Type: Report
System: The UNT Digital Library
Operational hazards evaluation for 5-kWe reactor thermoelectric system ground test (open access)

Operational hazards evaluation for 5-kWe reactor thermoelectric system ground test

None
Date: June 11, 1973
Creator: Tuttle, R. J.
Object Type: Report
System: The UNT Digital Library
Preliminary design review document application of multi-foil insulation to the Brayton Isotope Power System and conceptual design of multi-foil insulation for the flight system (phase I) (open access)

Preliminary design review document application of multi-foil insulation to the Brayton Isotope Power System and conceptual design of multi-foil insulation for the flight system (phase I)

The status of the effort to apply MULTI-FOIL thermal insulation in an effective manner to the Ground Development System (GDS) is reviewed. Heat loss measurements made on cylindrical and elbow heat sources using ''Tape'' and ''Conventional'' MULTI-FOIL indicate that the thermal losses are comparable on a per layer basis. However, use of the tape incurs a weight penalty, per layer, of about 20 percent. The effective thermal emissivity of the nickel layer/zirconia powder MULTI-FOIL is approximately 0.32. Parametric studies of GDS insulation losses (using a computer program developed for this purpose) indicate: (1) that the Heat Source Assembly (HSA) heat losses are a major fraction of the total and (2) that a significant reduction in heat loss is possible by optimizing the distribution of foil layers. A meltdown test of a miniature HSA configuration suggests that additional MULTI-FOIL layers can be safety added to the HSA insulation. Test data indicate that ''Electroformed'' MULTI-FOIL insulation assemblies (as a consequence of decreased edge loss and lower foil emissivity) are approximately four times as effective as either ''Conventional'' or ''Tape'' MULTI-FOIL packages on a weight basis. Preliminary GDS insulation design and planning have been completed.
Date: June 11, 1976
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Project vulcan heater: centerbody casting. [25. 5 Cr--5. 5 Ni--2. 00 Mo--3. 00 Cu steel] (open access)

Project vulcan heater: centerbody casting. [25. 5 Cr--5. 5 Ni--2. 00 Mo--3. 00 Cu steel]

Specifications for casting the centerbody housing of the vulcan heater are provided. CD-4MCu steel has been specified for the centerbody and the properties of the steel are given. (FS)
Date: June 11, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Research in high temperature physical chemistry. Technical progress report, May 15, 1971--May 14, 1972 and final report (open access)

Research in high temperature physical chemistry. Technical progress report, May 15, 1971--May 14, 1972 and final report

None
Date: June 11, 1973
Creator: Cater, E.D.
Object Type: Report
System: The UNT Digital Library
Safety analysis report for packaging: neutron shipping cask, model 0. 5T (open access)

Safety analysis report for packaging: neutron shipping cask, model 0. 5T

The Safety Analysis Report for Packaging demonstrates that the neutron shipping cask can safely transport, in solid or powder form, all isotopes of uranium, plutonium, americium, curium, berkelium, californium, einsteinium, and fermium. The shipping cask and its contents are described. It also evaluates transport conditions, structural parameters (e.g., load resistance, pressure and impact effects, lifting and tiedown devices), and shielding. Finally, it discusses compliance with Chapter 0529 of the Energy Research and Development Administration Manual.
Date: June 11, 1976
Creator: Peterson, R. T.
Object Type: Report
System: The UNT Digital Library
Safety analysis report for packaging type LLD-1 shipping container (open access)

Safety analysis report for packaging type LLD-1 shipping container

None
Date: June 11, 1974
Creator: Herbolsheimer, J.A.
Object Type: Report
System: The UNT Digital Library
Separation of uranium isotopes by laser photochemistry (open access)

Separation of uranium isotopes by laser photochemistry

None
Date: June 11, 1974
Creator: Snavely, Benj B.
Object Type: Article
System: The UNT Digital Library
Sintering kinetics of pure and doped boron carbide (open access)

Sintering kinetics of pure and doped boron carbide

The sintering of pure and doped boron carbide was investigated over the temperature range 1898 to 2380/sup 0/K and at additive levels ranging from 0.75 to 10.0%. The addition of 0.75 and 3.8 wt% of AlF/sub 3/, Ni, Fe, and Cu deactivated the sintering of B/sub 4/C at all temperatures. In contrast, the addition of 10.0 wt% these additives resulted in enhanced shrinkage in B/sub 4/C for the temperatures 1898 and 2133/sup 0/K. At the highest temperature, 2380/sup 0/K, the addition of 10.0 wt% AlF/sub 3/ was the only case where enhanced shrinkage was observed. In this case, x-ray analysis showed the formation of a B/sub 12/C/sub 2/Al compound and the release of fluorine. These results are interpreted in terms of a grain-boundary diffusion process for pure and doped B/sub 4/C.
Date: June 11, 1979
Creator: Lange, R. G.; Munir, Z. A. & Holt, J. B.
Object Type: Article
System: The UNT Digital Library
Survey of applied and computational mathematics at LLL (open access)

Survey of applied and computational mathematics at LLL

A summary of current activities in applied and computational mathematics at the Lawrence Livermore Laboratory is given. It is evident from the survey that there is a very broad spectrum of research and development in this area of mathematics. However, only a small percentage of the total effort is directly involved with fundamental research. The Laboratory is advised to adopt a formal policy to establish and support a research program in applied and computational mathematics. Coordination of related efforts is needed, and steps toward this are recommended. In addition, a study of interactions between mathematical methods and computer architectures is necessary for the Laboratory's ever-increasing requirement for computational capability. 5 figures, 3 tables.
Date: June 11, 1976
Creator: Chang, J.; Ekstrom, M. & Fritsch, F.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: H-47 (open access)

Texas Attorney General Opinion: H-47

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Questions relating to method of procedure for effecting Article 7, § 6, Texas Constitution as amended in November, 1972.
Date: June 11, 1973
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: H-48 (open access)

Texas Attorney General Opinion: H-48

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Whether a person who receives a felony probated sentence under Article 725b, Section 23(a), V.T.P.C., may under certain circumstances receive a second felony probated sentence.
Date: June 11, 1973
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: H-324 (open access)

Texas Attorney General Opinion: H-324

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Authority of District Judge to appoint attorney pro team under Art. 2.07, Vernon’s Code of Criminal Procedure, when District Attorney is not disqualified.
Date: June 11, 1974
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 1, Number 45, Pages 1539-1568, June 11, 1976 (open access)

Texas Register, Volume 1, Number 45, Pages 1539-1568, June 11, 1976

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: June 11, 1976
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Thermal-stress analysis of rock formations for nuclear fuel and waste storage (open access)

Thermal-stress analysis of rock formations for nuclear fuel and waste storage

ADINA and ADINAT in partnership have provided a unique tool for analysis of heat flow, temperature distribution, and underground stresses and deformations due to excavation and storage of nuclear fuel and/or waste cannisters in hard rock formations. During this work we have determined successful and unsuccessful combinations of elements and properties for both the thermal and the stress analyses. In addition, we have determined a need for thermal radiation transport between portions of the model, as contrasted to radiation between the model and its surroundings. This latter need has been met in the interim by use of nonlinear bar conductors, and it will be satisfied in the future by a special user subroutine at ADINAT. The geological modeling was preceeded by a period of code testing and verification during which it was found that at least one material model did not produce correct thermal stresses even though the thermal deformations were correct. We also found that thermal stresses were likely to be in apparent error due to differences in the way in which ADINA interpolates the temperature and strain fields within each element. Solutions to this problem are discussed.
Date: June 11, 1979
Creator: Greenlaw, R.C. & Gerhard, M.A.
Object Type: Article
System: The UNT Digital Library