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Almost Exact Sum Rules for Nucleon Moments From An Infinite Dimensional Algebra
Recently there has been a great surge of interest in almost-exact sum rules for the magnetic moments of nucleons. (By almost-exact we mean: exact to all orders in the strong couplings but only the lowest order in electromagnetic and weak couplings.) Besides providing a means for calculation of the magnetic moments on the same level as the calculation of GA/GV by Adler and Weisberger these sum rules, taken together with the Adler-Weisberger sum rule, constitute a useful tool for investigating the nature of the dynamical approximations that underlie higher symmetry schemes.
Date:
July 25, 1966
Creator:
Beg, M. A. B.
Object Type:
Report
System:
The UNT Digital Library
Scintillating-fiber imaging detector for 14-MeV neutrons
The authors have created a detector to image the neutrons emitted by imploded inertial-confinement fusion targets. The 14-MeV neutrons, which are produced by deuterium-tritium fusion events in the target, pass through an aperture to create an image on the detector. The neutron radiation is converted to blue light (430 nm) with a 20-cm-square array of plastic scintillating fibers. Each fiber is 10-cm long with a 1-mm-square cross section; approximately 35-thousand fibers make up the array. The resulting blue-light image is reduced and amplified by a sequence of fiber-optic tapers and image intensifiers, then acquired by a CCD camera. The fiber-optic readout system was tested optically for overall throughput the resolution. The authors plan to characterize the scintillator array reusing an ion-beam neutron source as well as DT-fusion neutrons emitted by inertial confinement targets. Characterization experiments will measure the light-production efficiency, spatial resolution, and neutron scattering within the detector. Several neutron images of laser-fusion targets have been obtained with the detector. Several neutron images of laser-fusion targets have been obtained with the detector. They describe the detector and their characterization methods, present characterization results, and give examples of the neutron images.
Date:
July 25, 1994
Creator:
Ress, D.; Lerche, R. A.; Ellis, R. J.; Heaton, G. W.; Nelson, M. B.; Mant, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Removal of ruptured slug from tube No. 2169-B
The 105-B Pile which was shut down on July 18, 1951 to permit removal of a ruptured uranium slug from tube No. 2169-B. The rupture was detected from effluent water monitor evidence and a survey of rear face pigtails. Removal was accomplished with the pneumatic charging machine using only normal pushing force.
Date:
July 25, 1951
Creator:
Baker, J. T.
Object Type:
Report
System:
The UNT Digital Library
Section on Salt and Adrenals
There is no evidence to suggest that the adrenal medulla plays a significant role in the production or maintenance of renal hypertension. The decisive experiment was made by Goldblatt and collaborators/who successfully produced experimental hypertension in dogs by renal artery constriction despite the surgical removal of·one entire adrenal and the medulla of the other.
Date:
July 25, 1966
Creator:
Dahl, Lewis K
Object Type:
Report
System:
The UNT Digital Library
Trump Administration Reform and Reorganization Plan: Discussion of 35 "Government-Wide" Proposals [Memorandum]
"This memorandum provides a brief summary and some preliminary analysis of the Donald J. Trump Administration's recent proposals to restructure and reform agencies, programs, and operations in the executive branch. Specifically, the memorandum covers the 32 proposals characterized by the Trump Administration as "Government-wide." The 32 proposals include several sub-proposals, which, when enumerated separately as they are in this memorandum, bring the total to 35. The analysis of each proposal includes, to the extent possible, a discussion of statutes that might be involved in the proposed changes, and whether some changes might be achieved through administrative action" (p. 1).
Date:
July 25, 2018
Creator:
Hogue, Henry B. & Brass, Clinton T.
Object Type:
Book
System:
The UNT Digital Library
Preliminary hazards review overboring Hanford reactors
The General Electric Company, as prime contractor to the AEC at Hanford, is proposing to modify the lattice characteristics of the 8 3/8-inch lattice reactors for the purposes of improving the conversion ratio of these reactors. The proposed overbore modification of the reactors would remove the existing aluminum process tubes, enlarge the diameters of the graphite channels by about one-half inch, insert smooth-bore Zircaloy-2 process tubes and refuel the reactor with larger size, self-supported fuel elements. The overbore fuel will remain the internally-and-externally-cooled cylindrical type, but the weight per foot will be about twice that of the present fuel element. The removal of the inlet and outlet piping connections which would be required in the overboring process will permit the replacement of the existing fittings with ones of improved design. Furthermore, new orifices and venturis which are compatible with the hydraulic characteristics of the overbore tube and fuel geometry and the pumping system will be installed. No basic changes are proposed in the pumping system though the reactor flaw rate may be increased 5--10 percent by changes in hydraulic characteristics depending on the water plant flow capacity.
Date:
July 25, 1962
Creator:
Nilson, R. & Carlson, P. A.
Object Type:
Report
System:
The UNT Digital Library
Laboratory project for isolation of plutonium
Construction of proposed facilities to be operated under Technical Division supervision for research with plutonium is discussed. An attempt is made in this memorandum to visualize the research program for such a facility for the next five years, to aid in determining whether the cost of providing such facilities is justified.
Date:
July 25, 1955
Creator:
Jenkins, W. A.
Object Type:
Report
System:
The UNT Digital Library
101-SY waste sample speed of sound/rheology testing for sonic probe program
One problem faced in the clean-up operation at Hanford is that a number of radioactive waste storage tanks are experiencing a periodic buildup and release of potentially explosive gases. The best known example is Tank 241-SY-101 (commonly referred to as 101-SY) in which hydrogen gas periodically built up within the waste to the point that increased buoyancy caused a roll-over event, in which the gas was suddenly released in potentially explosive concentrations (if an ignition source were present). The sonic probe concept is to generate acoustic vibrations in the 101-SY tank waste at nominally 100 Hz, with sufficient amplitude to cause the controlled release of hydrogen bubbles trapped in the waste. The sonic probe may provide a potentially cost-effective alternative to large mixer pumps now used for hydrogen mitigation purposes. Two important parameters needed to determine sonic probe effectiveness and design are the speed of sound and yield stress of the tank waste. Tests to determine these parameters in a 240 ml sample of 101-SY waste (obtained near the tank bottom) were performed, and the results are reported.
Date:
July 25, 1994
Creator:
Cannon, N. S.
Object Type:
Report
System:
The UNT Digital Library
Final report: Irradiation performance of a coextruded, Zircaloy-2-clad three-rod cluster fuel elements, PT-IP-186-A
One of the early candidate fuel elements for N Reactor use was the coextruded, Zircaloy-2-clad seven-rod cluster. As part of the program of evaluating the seven-rod cluster geometry, three-rod cluster fuel elements, two and three feet long, were irradiated. These long cluster fuel elements were irradiated to determine the distortion (or sag) which might occur at the center of the unsupported length during irradiation. Two three-rod clusters made up of 0.630 inch diameter rods, containing natural uranium cores were irradiated in KER Loop 3. The rods of one cluster were three feet long; the rods of the other were two feet long. The three-feet long rods were supported at their ends and at their midlengths, the two-feet long rods only at their ends. During the irradiation, the maximum core temperature was 435 C. The fuel elements were discharged from the loop after they had reached an exposure of 1400 MWD/T. Following the discharge, the fuel elements were visually examined in the KE view pit. No sag was observed in any of the rods. The test demonstrated that two- and three-feet long rod cluster fuel elements can be irradiated without appreciable sag occurring in the rods.
Date:
July 25, 1962
Creator:
Call, R. L.
Object Type:
Report
System:
The UNT Digital Library
Progress at LAMPF, 1992--1993
This Progress Report describes the operation of the Los Alamos Meson Physics Facility (LAMPF) and the research programs carried out there for the years 1992 and 1993. The accelerator operated for over 100 days in 1992, providing beams of H{sup +}, H{sup {minus}}, and polarized H{sup {minus}} for a rich and varied research program in nuclear physics. The accelerator had only fair beam availability in 1992 (for example, the average H{sup +} beam availability was 72%), caused largely by problems in the 201-MHz rf system. A major effort was expended to address these problems before the 1993 run. These efforts were rewarded by good beam availability in 1993 and few problems with the 201-MHz system. LAMPF operated remarkably smoothly during 1993, in the midst of a period of great uncertainty in the future of the facility and the downsizing of MP Division, which led to the loss of a large number of key people to positions elsewhere in the Laboratory. The H{sup +} intensity had to be held to no more than {approximately} 800{mu}A because of a vacuum leak in the A2 target. Nevertheless, the accelerator operated very.reliably and the summer run in 1993 proved to be extremely productive. This …
Date:
July 25, 1994
Creator:
Hoffman, C. M.
Object Type:
Report
System:
The UNT Digital Library
River water sampling
This report contains a letter, written on July 25, 1947, concerning the sampling program at Columbia River. The author suggests reducing the sampling schedule. He states that chemical composition sampling should be reduced by one-fifth and radioactivity sampling be reduced by one-third. He suggests that only mid-channel samples are required for representative studies. He further states that weekly sampling should occur. By following these suggestions, the cost of the sampling program should be drastically reduced because the hours of manpower taken to sample the river, analyze the data, organize, and store information would be reduced.
Date:
July 25, 1947
Creator:
Lauder, D. H.
Object Type:
Report
System:
The UNT Digital Library
Low exposure irradiation of an enriched seven-rod cluster in KER Loop 1, PR-IP-246-A: Final report
One of the early candidate fuel elements for the N Reactor was the seven-rod cluster fuel element. An objective of the program to determine the suitability of the seven-rod cluster fuel element for N Reactor use was to evaluate the irradiation performance of coextruded, Zircaloy-2-clad, seven-rod cluster fuel elements over a range of exposures from low exposures to high exposures. This report describes the irradiation testing of an enriched seven-rod cluster fuel element which was irradiated to 520 MWD/r.
Date:
July 25, 1962
Creator:
Call, R. L.
Object Type:
Report
System:
The UNT Digital Library
Fabrication and testing of a silicon immersion grating for infrared spectroscopy
Recent advances in silicon micromachining techniques (e.g. anisotropic etching) allow the fabrication of very coarse infrared echelle gratings. When used in immersion mode, the dispersion is increased proportionally to the refractive index. This permits a very significant reduction in the overall size of a spectrometer while maintaining the same resolution. We have fabricated a right triangular prism (30{times}60{times}67 mm with a rectangular entrance face 30{times}38 mm) from silicon with a grating etched into the face of the hypotenuse. The grating covers an area of 32 mm by 64 mm and has a 97.5 PM periodicity with a blaze angle of 63.4{sup o}. The groove surfaces are very smooth with a roughness of a few manometers. Random defects in the silicon are the dominant source of grating scatter ({approx} 12% at 3.39 {mu}m). We measure a grating ghost intensity of 1.2%. The diffraction peak is quite narrow, slightly larger than the Airy disc diameter at F/12. However due to wavefront aberrations, perhaps 15--20% of the diffracted power is in the peak with the rest distributed in a diameter roughly five times the Airy disc.
Date:
July 25, 1994
Creator:
Kuzmenko, P. J.; Ciarlo, D. R. & Stevens, C. G.
Object Type:
Article
System:
The UNT Digital Library
Synthesis of 6-Methyl-9-n-propyldibenzothiophene-4-ol. Quarterly technical progress report No. 4, April 25--July 25, 1991
The material covered in this report is divided into two parts: further cyclization experiments on 1,4-diethyl-2-[(2`- methoxyphenyl)thio]benzene and its sulfone both by chemical and photochemical means, and progress toward synthesis of modified target molecule, 9-isopropyl-4-methoxy-6-methyldibenzo-thiophene. 8 refs, figs.
Date:
July 25, 1991
Creator:
Eisenbraun, E. J.
Object Type:
Report
System:
The UNT Digital Library
System design description for portable 1,000 CFM exhauster Skids POR-007/Skid E and POR-008/Skid F
The primary purpose of the two 1,000 CFM Exhauster Skids, POR-007-SKID E and POR-008-SKID F, is to provide backup to the waste tank primary ventilation systems for tanks 241-C-106 and 241-AY-102, and the AY-102 annulus in the event of a failure during the sluicing of tank 241-C-106 and subsequent transfer of sluiced waste to 241-AY-102. This redundancy is required since both of the tank ventilation systems have been declared as Safety Class systems.
Date:
July 25, 1998
Creator:
Nelson, O. D.
Object Type:
Report
System:
The UNT Digital Library
Advanced nuclear reactor public opinion project. Interim report
This Interim Report summarizes the findings of our first twenty in-depth interviews in the Advanced Nuclear Reactor Public Opinion Project. We interviewed 6 industry trade association officials, 3 industry attorneys, 6 environmentalists/nuclear critics, 3 state officials, and 3 independent analysts. In addition, we have had numerous shorter discussions with various individuals concerned about nuclear power. The report is organized into the four categories proposed at our April, 1991, Advisory Group meeting: safety, cost-benefit analysis, science education, and communications. Within each category, some change of focus from that of the Advisory Group has been required, to reflect the findings of our interviews. This report limits itself to describing our findings. An accompanying memo draws some tentative conclusions.
Date:
July 25, 1991
Creator:
Benson, B.
Object Type:
Report
System:
The UNT Digital Library
Effluent Treatment Facility tritium emissions monitoring
An Environmental Protection Agency (EPA) approved sampling and analysis protocol was developed and executed to verify atmospheric emissions compliance for the new Savannah River Site (SRS) F/H area Effluent Treatment Facility. Sampling equipment was fabricated, installed, and tested at stack monitoring points for filtrable particulate radionuclides, radioactive iodine, and tritium. The only detectable anthropogenic radionuclides released from Effluent Treatment Facility stacks during monitoring were iodine-129 and tritium oxide. This paper only examines the collection and analysis of tritium oxide.
Date:
July 25, 1991
Creator:
Dunn, D. L.
Object Type:
Article
System:
The UNT Digital Library
Moldova: An Overview
This report discusses Moldova, one of three post-Soviet states, together with Ukraine and Georgia, seeking greater integration with the West as it copes with separatist territories occupied by Russian forces.
Date:
July 25, 2018
Creator:
Welt, Cory
Object Type:
Report
System:
The UNT Digital Library
IGR NO{sub x}/SO{sub x} control technology. [Quarterly] report, April 1, 1993--June 30, 1993
This reporting term covers the first full quarter subsequent to the program kick-off meeting and the DOE authorization to proceed with the contract work. As such the work of this term principally involves ordering, assembling, and de-bugging equipment as well as the development of the solid electrolyte materials and some initial electrochemical studies. These initial studies make use of the above instrumentation and act as a source of calibration for subsequent studies. Specifically the work during this reporting term has involved the optimization of the sintering of the ceramic electrolyte freeze dried powder to allow for optimum performance of the IGR ceramic composite, the determination of the electrochemical properties in air of the above stabilized ceramic solid oxide electrolyte material over the relevant ranges of applied voltage and temperatures, and the detailed planning, equipment/parts ordering, acquisition, and integration for the computer controlled electrochemical test apparatus for the electrocatalytic materials.
Date:
July 25, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Response to requests by FMF and DWPF concerning disposal of FMF saltstone drums in Z-Area vaults
Disposal of FMF saltstone in 55 gallon drums in the Z-Area Industrial Waste Landfill requires modification of the landfill permit. Approximately 5000 drums of FMF saltstone are currently stored on SC DHEC-permitted concrete storage pads adjacent to the burial ground. At a meeting with DWPF, FMF, and EPS on July 18, 1989, IWT agreed to supply the following information: (1) Consequence of disposal of CCA (Cu, Cr, As) treated wood pallets in the Z-Area vaults. (Four drums of FMF saltstone are currently banded to each pallet.) (2) Consequence of placing partially filled FMF drums in the Z-Area vaults. (3) Formulation for clean grout back-fill. Grout will be emplaced around and over the drums, thereby isolating them from environment (rainwater) prior to vault capping. (4) Maximum loading of FMF saltstone drums in the Z-Area vaults. (5) Consequence of void volume in drums, in clean grout, or both on groundwater modeling results. This document is a response to the above requests.
Date:
July 25, 1989
Creator:
Langton, C. A. & Cook, J. R.
Object Type:
Report
System:
The UNT Digital Library
The Essential Judge Brett M. Kavanaugh Reader: What Cases Should You Read?
This report highlights many of Judge Brett M. Kavanaugh's judicial opinions that have received the greatest degree of attention from legal observers. Judge Kavanaugh, whom President Trump has nominated to fill the impending Supreme Court vacancy caused by Justice Anthony M. Kennedy's retirement from the Court, has amassed a voluminous record of judicial writings during his legal career. These writings are certain to be a key topic of interest as the Senate prepares to hold hearings and a possible vote on Judge Kavanaugh's nomination to the High Court.
Date:
July 25, 2018
Creator:
Garcia, Michael John
Object Type:
Report
System:
The UNT Digital Library
Wiretapping and Electronic Surveillance: Federal and State Statutes
This report compiles federal and state statutes that relate to electronic surveillance in a single source, including a brief history of laws pertaining to this topic, especially from the United States Supreme Court.
Date:
July 25, 1974
Creator:
Was, Christopher N.; Smith, M. Elizabeth & Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
Development in the World Oil Industry: A Chronological Survey
This chronological survey is a history of developments in or affecting the international petroleum industry, with emphasis on relations between oil-producing and oil-processing companies, and the Middle East and North Africa.
Date:
July 25, 1973
Creator:
Mark, Clyde R.
Object Type:
Report
System:
The UNT Digital Library
A List of States Imposing Income and Sales Taxes, As of July 1, 1972
This report includes a listing of states imposing income an sales taxes as of July 1, 1972.
Date:
July 25, 1972
Creator:
McBreen, Maureen
Object Type:
Report
System:
The UNT Digital Library