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124
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90
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Newsletter of Texas State Representative Art Fierro: Volume 3, July 2019
Newsletter of Art Fierro for his constituents in district 79 discussing news, activities, and various updates related to work in the Texas legislature. It focuses on mental health, school safety, and other actions, such as bills signed by the Governor, from the 86th legislative session.
Date:
July 25, 2019
Creator:
Fierro, Peter Arthur
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Bulletin on Texas State Finance: 1986, Number 1
Periodic bulletin analyzing issues related to Texas legislation. This issue focuses on the effects of the oil market crash on the Texas state budget.
Date:
July 25, 1986
Creator:
Texas Research League
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Shielding on a 27,300 SHP Boiling Water Reactor Marine Propulsion System
This report summarizes the radiation and shielding analysis for a 30,000 SHP natural circulation boiling water reactor for ship propulsion. The reactor is proposed for installation in a 60,000 DWT, 18 knot tanker of the T-7 class.
Date:
July 25, 1959
Creator:
Craig, W. D.
Object Type:
Report
System:
The UNT Digital Library
Neutron Leakage Through Iron
Neutron attenuation in the old pile shields is dependent more and more on the slowing down characteristics of the iron as the hydrogen is baked out of the masonite. For neutrons above 1 or 2 Mev, iron does a good job by inelastic scattering. However, below this energy attenuation can be done only by the gradual moderation by elastic scattering to thermal energies with subsequent capture in the iron. Since iron is heavy and thus a poor moderator, there is a good possibility that many neutrons of intermediate energy will leak out of a burned out shield. Also, iron has a large dip in its cross section at 25 Kev which might allow a large burst of neutrons at this energy to leak out. Measurements using a lucite moderator with gold foil detectors indicate a large leakage of neutrons of intermediate energy, but interpretation of these measurements is difficult. These considerations prompted an attempt to get a rough idea of the energy distribution of the leakage neutrons through pure iron using a simple qualitative theory.
Date:
July 25, 1956
Creator:
Wood, D. E.
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Contamination Associated with Inert-Gas-Shielded, Consumable Electrode Welding
Apparent excessive concentrations of atmospheric contamination which were reported to be associated with an inert-gas-shielded consumable electrode arc wielding operation were studied to evaluate the potential health hazards. A study was made of the concentrations of metal fume and gaseous products of the operation as well as the spectrum of ultraviolet radiation. Recommendations for necessary controls were made.
Date:
July 25, 1955
Creator:
Adley, F. E. & Gill, W. E.
Object Type:
Report
System:
The UNT Digital Library
Plowshare Program : Peaceful Uses for Nuclear Explosives
The concept of thermonuclear explosives as a potentially cheap and almost inexhaustible energy source for mankind's non military needs has for several years been under active consideration at the Lawrence Radiation Laboratory. Many of the proposed peaceful applications involve underground nuclear explosions, and several experiments at the AEC Nevada Test Site have provided valuable insight into the phenomenology of such explosions. Among the possible uses currently under consideration are excavation, heat production, isotope production, mining, recovery of oil from shales and tar sands, improvements of ground water supplies, and the construction of earth fill dams. In addition a program of experimental research in the laboratory and in the field is under way. Sometime in 1961 Project Gnome if approved will be conducted in New Mexico. The purpose of Gnome, a contained nuclear explosion in a salt deposit, is to study the feasibility of heat recovery and isotope production, neutron scattering experiments will also be included. Other proposed nuclear projects will involve the creation of a small harbor near Cape Thompson, Alaska as the result of an experiment designed to investigate the cratering effects of nuclear explosives; a proposal to investigate the recovery of oil from Canadian tar sands using thermonuclear …
Date:
July 25, 1960
Creator:
Lombard, David B.
Object Type:
Report
System:
The UNT Digital Library
Oil Burner.
Patent for a new oil burner which is designed to burn oil for fuel has a flared nozzle and can be cheaply made and repaired.
Date:
July 25, 1922
Creator:
Decuir, Joseph O.
Object Type:
Patent
System:
The Portal to Texas History
Tests on a High Current R.F. Joint in Vacuum
An R.F. joint tester was designed to determine the relative heating and tendency toward arching at high RF current density (100 amps/linear inch) of a 12 inch diameter circular copper butt joint in vacuum with several types of inserts and at various amounts of axial loading, ranging from a very small contact pressure to one of 1400 pounds per linear inch of joint.
Date:
July 25, 1951
Creator:
Wharton, Charles B.
Object Type:
Report
System:
The UNT Digital Library
Power Distributions for Type 3 Replacement Cores for SM-1, SM-1A and PM-2A
Abstract: The most adverse power distribution and power peaking factors have been developed for Type 3 replacement cores for SM-1, SM-1A, and PM-2A. Also included is the 37 element Type 3 core for SM-1, which is known as SM-1 Core III and is a prototype of a Type 3 core for PM-2A. The power distributions were compared with measured distributions obtained on type 3 fuel elements in SM-1, SM-1A and PM-2A core configurations. Using the measured data as a standard, correction factors were obtained and applied to the analytical predictions of the most adverse power distribution.
Date:
July 25, 1962
Creator:
Oggerino, J. P.
Object Type:
Report
System:
The UNT Digital Library
Large-scale cryopumping for controlled fusion
Vacuum pumping by freezing out or otherwise immobilizing the pumped gas is an old concept. In several plasma physics experiments for controlled fusion research, cryopumping has been used to provide clean, ultrahigh vacua. Present day fusion research devices, which rely almost universally upon neutral beams for heating, are high gas throughput systems, the pumping of which is best accomplished by cryopumping in the high mass-flow, moderate-to-high vacuum regime. Cryopumping systems have been developed for neutral beam injection systems on several fusion experiments (HVTS, TFTR) and are being developed for the overall pumping of a large, high-throughput mirror containment experiment (MFTF). In operation, these large cryopumps will require periodic defrosting, some schemes for which are discussed, along with other operational considerations. The development of cryopumps for fusion reactors is begun with the TFTR and MFTF systems. Likely paths for necessary further development for power-producing reactors are also discussed.
Date:
July 25, 1977
Creator:
Pittenger, L. C.
Object Type:
Article
System:
The UNT Digital Library
Obfuscatory measurement
''Obfuscatory measurement'' is the practice, deliberate or not, of obscuring the true performance of a system through the use of misleading measures. Many of the traditional and widely used measures of computer system performance are obfuscatory: they measure the wrong things, the right things wrongly, or nothing at all. Several obfuscatory measures are considered; those aspects of the system they are thought to measure are contrasted with those that they actually measure; and alternative measures, which are more meaningful to the user community, are suggested. 3 figures, 1 table.
Date:
July 25, 1977
Creator:
Stevens, D. F.
Object Type:
Article
System:
The UNT Digital Library
Texas Preventable Disease News, Volume 47, Number 29, July 25, 1987
Newsletter of the Texas Bureau of Disease Control and Epidemiology discussing the news, activities, and events of the organization and other information related to health in Texas.
Date:
July 25, 1987
Creator:
Texas. Bureau of Disease Control and Epidemiology.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
X-Ray Backlighting for the National Ignition Facility
X-ray backlighting is a powerful tool for diagnosing a large variety of high-energy-density phenomena. Traditional area backlighting techniques used at Nova and Omega cannot be extended efficiently to NIF-scale. New, more efficient backlighting sources and techniques are required and have begun to show promising results. These include a backlit-pinhole point projection technique, pinhole and slit arrays, distributed polychromatic sources, and picket fence backlighters. In parallel, there have been developments in improving the data SNR and hence quality by switching from film to CCD-based recording media and by removing the fixed-pattern noise of MCP-based cameras.
Date:
July 25, 2000
Creator:
Landen, O. L.; Farley, D. R.; Glendinning, S. G.; Logory, E. M.; Bell, P. M.; Koch, J. A. et al.
Object Type:
Article
System:
The UNT Digital Library
Sound Speeds of Post-Failure Wave Glass
Plate impact experiments were performed on B270 glass in order to measure the properties of post-failure wave material. The initial failure wave velocity is 1.27 km/s . After the material is released, the failure wave velocity drops to 0.65 km/s. At a stress of 6.72 GPa, the sound speed in the failed material is 4.97 km/s (compare to 5.79 km/s in the intact material) with a density comparable to the predicted shock value. At a stress of 0.26 GPa, the average sound speed in the failed material is 3.55 km/s, and the density drops to 65% of the intact value. The spall strength of the failed material is greater than 0.14 GPa.
Date:
July 25, 2000
Creator:
Cazamias, J U; Fiske, P S & Bless, S J
Object Type:
Article
System:
The UNT Digital Library
REMARKS ON THE MAXIMUM ENTROPY METHOD APPLIED TO FINITE TEMPERATURE LATTICE QCD.
We make remarks on the Maximum Entropy Method (MEM) for studies of the spectral function of hadronic correlators in finite temperature lattice QCD. We discuss the virtues and subtlety of MEM in the cases that one does not have enough number of data points such as at finite temperature. Taking these points into account, we suggest several tests which one should examine to keep the reliability for the results, and also apply them using mock and lattice QCD data.
Date:
July 25, 2005
Creator:
Umeda, T. & Matsufuru, H.
Object Type:
Article
System:
The UNT Digital Library
Isospin Breaking and the Chiral Condensate.
With two degenerate quarks, the chiral condensate exhibits a jump as the quark masses pass through zero. I discuss how this single transition splits into two Ising like transitions when the quarks are made non-degenerate. The order parameter is the expectation of the neutral pion field. The transitions represent long distance coherent phenomena occurring without the Dirac operator having vanishingly small eigenvalues.
Date:
July 25, 2005
Creator:
Creutz, M.
Object Type:
Article
System:
The UNT Digital Library
Simulation of Time-Reversal Processing for Electromagnetic Communication
Time-reversal processing was simulated for several possible electromagnetic communication channels, including random point scatterers, large plates and a conducting cavity. Communication was from a single transmitting antenna to a receiving array. The effectiveness of time-reversal processing was compared for a single receiver and the array. The aim of these simulations was to determine a communication environment that would give an interesting level of multipath interference and that can be constructed in a laboratory.
Date:
July 25, 2003
Creator:
Burke, G J & Poggio, A J
Object Type:
Report
System:
The UNT Digital Library
Nuclear Energy Research Initiative Program (NERI) Quarterly Progress Report - New Design Equations for Swelling and Irradiation Creep in Generation IV Reactors
None
Date:
July 25, 2003
Creator:
Surh, M P & Wolfer, W G
Object Type:
Report
System:
The UNT Digital Library
Scoping Inventory Calculations for the Rare Isotope Accelerator
This document is a report on our activities in FY03 exploring nuclear safety and hazard analysis issues relevant to the Rare Isotope Accelerator (RIA). It is not clear whether DOE will classify the RIA as an accelerator facility subject to the accelerator-specific safety requirements of DOE Order 420.2A or as a nonreactor nuclear facility subject to the requirements of 10 CFR 830. The final outcome of this issue will have significant impact on the construction and operation of the facility and the quality assurance requirements for items or services that may affect nuclear safety. The resolution of this issue will be an important earlier decision for the RIA project team and will require early consultation with the appropriate DOE authorities. For nuclear facilities, facility hazard classification depends on the inventory of releasable radionuclides; therefore, some simplistic, scoping inventory calculations for some assumed targets and beams are done to estimate the hazard category of RIA if it is declared a nuclear facility. These calculations show that for the scenarios analyzed, RIA would produce sufficient quantities of radionuclides to be classified as a Category 3 nuclear facility. Over the lifetime of RIA operations, it may be possible to build up Category 2 …
Date:
July 25, 2003
Creator:
Ahle, L. E. & Boles, J. L.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Energy Research Initiative Program (NERI) Quarterly Progress Report - New Design Equations for Swelling and Irradiation Creep in Generation IV Reactors
None
Date:
July 25, 2003
Creator:
Surh, M P & Wolfer, W G
Object Type:
Report
System:
The UNT Digital Library
Recent Results from the Low Temperature Spare Astro-E Microcalorimeter Used at the LLNL EBIT-I and EBIT-II
In the past year a spare NASA/GSFC Astro-E microcalorimeter has been installed, tested, and run successfully on the electron beam ions traps EBIT-I and EBIT-II at the Lawrence Livermore National Laboratory. The microcalorimeter complements crystal and grating spectrometers already part of the LLNL ebit program making it possible to measure a broad bandwidth ({approx}0.3-10 keV) with moderate resolution while simultaneously measuring a narrow bandwidth ({approx}0.7-1.3 keV) with high resolution. An overview of recent work, including measurements by the microcalorimeter of absolute excitation cross is presented. These results continue our effort to provide atomic data of high quality to be used as benchmarks of theoretical calculations and to be included in atomic data bases employed by spectral fitting packages used to interpret spectra obtained by XMM-Newton and the Chandra X-Ray Observatory.
Date:
July 25, 2001
Creator:
Brown, G V; Behar, E; Beiersdorfer, P; Boyce, K R; Chen, H; Gendreau, K C et al.
Object Type:
Article
System:
The UNT Digital Library
The Pepcon Disaster-Causative Factors and potential Preventive and Mitigative Measures
On May 4, 1988, the PEPCON plant experienced three major and several smaller explosions that caused over $70 million in property damage and caused two deaths. The PEPCON plant produced Ammonium Perchlorate (AP), a major ingredient for rocket fuel. The PEPCON plant and the nearby Kidd Marshmallow plant were totally destroyed by the detonations. The initiating event for the explosions was a fire that originated in the Batch Dryer Building and spread to adjacent storage. Several factors combined to cause the AP in the major storage fields to detonate, the most important being lack of adequate separation between storage units. Welding and flame cutting procedure with poor fire watch protocol was the prime candidate for fire ignition. There were no automatic fire suppression systems at the plant. Buildings including the Batch Dryer Building were made of combustible building material (fiberglass). There was poor housekeeping and no control of AP dust generation. AP was stored in combustible polyethylene drums, aluminum tote bins, 30-gallon steel storage drums and fiber reinforced tote bags. There were high-density storage practices. In addition, a contributing factor to the rapid fire-spread was that the wind that day was blowing directly from the batch dryer building to the …
Date:
July 25, 2003
Creator:
Lambert, H E & Alvares, N J
Object Type:
Article
System:
The UNT Digital Library
RCRA Groundwater Quality Assessment Report for Single-Shell Tank Waste Management Area T (January 1998 through December 2001)
This report presents the findings of continued groundwater quality assessment at Waste Management Area T in the 200 West Area of the Hanford Site. It covers January 1988 through December 2001.
Date:
July 25, 2002
Creator:
Horton, Duane G.; Hodges, Floyd N.; Johnson, V. G. & Chou, Charissa J.
Object Type:
Report
System:
The UNT Digital Library
User`s guide to the FFTF Plant Operational Data Management System (B1039)
The FFTF Plant Operational Data Management (PODM) System provides capabilities for storing, managing and retrieving data recorded by FFTF plant computers [the Plant Data System (PDS), in particular]. The PODM system is currently implemented on SUN{sup TM} Workstations{sup (R)}. This guide contains a description of the PODM System, and instructions for using programs available for retrieving and processing FFTF data stored in the data base. Section 2.0 provides a brief overview and the background of the system. The organization and content of the data base are described in more detail in Sections 3.0 and 4.0. Available computer programs are described in sections 5.0 and 6.0 while subroutines that can be called by a user`s FORTRAN program are described in section 7.0.
Date:
July 25, 1994
Creator:
Nelson, J. V. Jr.
Object Type:
Report
System:
The UNT Digital Library