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47
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Lee College Courier, Volume 4, Number 19, September 1995
Newsletter of Lee College discussing news, events, and other updates.
Date:
September 25, 1995
Creator:
Lee College (Baytown, Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
N. S. Savannah Fuel Design and Development Program: Fuel Rod Vibration (Preliminary Report)
This is a preliminary report on the investigation of the N.S. Savannah replacement fuel rod vibration amplitude when excited by water flowing parallel to the axis of the fuel rod. Methods of calculating the fuel rod frequency in air were verified by experiment. Work is continuing to establish the validity of methods of calculating natural frequencies in water and to confirm the correlation of flow induced vibration amplitude found in reference (1).
Date:
September 25, 1959
Creator:
Bailey, J. A. & Shields, C. M.
Object Type:
Report
System:
The UNT Digital Library
A Test of the Refraction Seismic Method on the Hanford Project
Information was desired on applicability of seismic methods of geophysical exploration in helping to better define and refine hydrological and geological factors affecting ground disposal of liquid radioactive wastes. To date most of information on the area geology has been obtained from surface mapping and well drilling, although it has long been recognized that geophysical techniques may greatly assist in defining the geology of the region. Although direct measurements are generally preferred to indirect measurements have proven extremely valuable in many applications. Careful analysis of field data from geophysical measurements, and correlation with known geologic conditions, should provide significant knowledge of earth formations. Geophysical methods do not directly determine depth, type and composition of underground earth materials, but rely rather on detecting differences in physical properties (elastic wave velocity, magnetic susceptibility, density or electrical resistivity) of such earth materials.
Date:
September 25, 1959
Creator:
Raymond, J. R.
Object Type:
Report
System:
The UNT Digital Library
Ultrasonic Testing With Lamb Waves
A method is described whereby many types of flaws lying close to the surface of a metal can be ultrasonically detected, regardless of the time duration of the interrogating pulses. Lamb waves are established in the metal between a flaw and the surface by an ultrasonic beam which impinges at the proper angle of incidence. A suitably positioned receiver transducer picks up the waves to reveal the flaw. In this method the usually troublesome surface echo is eliminated from the receiver by an acoustic barrier, making it well suited for routine and automatic testing. Results of applying the technique to several testing problems are discussed.
Date:
September 25, 1956
Creator:
Worlton, D. C.
Object Type:
Report
System:
The UNT Digital Library
Focus Report, Volume 86, Number 4, September 2019
Report including a digest of each vetoed measure, the governor's stated reason for the veto, and a response to the veto by the author or sponsor of the bill.
Date:
September 25, 2019
Creator:
Texas. Legislature. House of Representatives. Research Organization.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
A Final Report on the Experiment : the Penetration of Graphite of Different Purities by Lead Bismuth Eutectic
Bi-Pb eutectic and pure Bi penetration of graphites of various densities under 300 degrees C and pressures up to 20 psi was found be of the order of magnitude of 1.0 g/cm(2) and was uniform throughout the graphite. Bi was absorbed less than the eutectic but the oxidation rate of Bi would be prohibitive. There was heavy nitriding in N atmospheres with the Bi and the eutectic.
Date:
September 25, 1944
Creator:
Stroud, William G.
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 45, Number 39, Pages 6625-6814, September 25, 2020
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:
September 25, 2020
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Aerial Projectile
Patent for an aerial projectile for use as an anti-infantry bomb, dropped by planes. Specifically, it is a fragmentation bomb hand dropped from planes that will not only deliver an explosive blast and the subsequent shrapnel, but deliver such a blast as to destroy itself so it cannot be reverse engineered.
Date:
September 25, 1918
Creator:
Bury, Thomas J. & Bury, Oney
Object Type:
Patent
System:
The Portal to Texas History
Chemistry Division Quarterly Report: June, July and August, 1950
Quarterly progress report on various research projects conducted at the University of California Radiation Laboratory.
Date:
September 25, 1950
Creator:
Lawrence Berkeley National Laboratory
Object Type:
Report
System:
The UNT Digital Library
An Experimental Determination of Fission Product Heating After Shutdown of the Low Intensity Training Reactor
Technical report containing the general arrangement of the Low Intensity Training Reactor and outcomes of experiments that have been performed in the reactor to measure the rate of fission product heat dissipation from the fuel pieces after loss of water. [From Summary, Introduction]
Date:
September 25, 1951
Creator:
Beall, S. E.
Object Type:
Report
System:
The UNT Digital Library
Pass or fail: A new test for password legitimacy
While other programs check for bad passwords after the fact, it in important to have good passwords at all times, not just after the latest Crack run. To this end we have modified Larry Wall's Perl password program and added, among other features, the ability to check a sorted list of all the bad passwords'' that Crack will generate, given all the dictionaries that we could get our hands on (107 MB of unique words, so far). The combination of improvements has turned publicly available code into a powerful tool that can aid sites in the maintenance of local security.
Date:
September 25, 1992
Creator:
Cherry, Andrew; Henderson, Mark W.; Nickless, William K.; Olson, Robert & Rackow, Gene
Object Type:
Article
System:
The UNT Digital Library
Biological processes in the water column of the South Atlantic Bight: Zooplankton responses
This study sought to determine and understand the major processes governing the abundance, distribution, composition and eventual fate of zooplankton on the southeastern shelf of the US in relation to water circulation. Over much of the shelf circulation is dominated by the Gulf Stream and/or atmospheric forcing. Most of our studies concentrated on processes on the middle and outer shelf. On the latter, pronounced biological production occurs year-round at frequent intervals and is due to Gulf Stream eddies which move by at an average frequency of one every week. These eddies are rich in nutrients which, when upwelled into the euphoric zone, lead to pronounced primary production which then triggers zooplankton production.
Date:
September 25, 1992
Creator:
Paffenhofer, G. A.
Object Type:
Report
System:
The UNT Digital Library
Texas Turkey Poults: For Week Ending September 20, 1980
Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks during two years for turkey eggs set and poults hatched.
Date:
September 25, 1980
Creator:
Texas Crop and Livestock Reporting Service
Object Type:
Report
System:
The Portal to Texas History
Removal of Mercury From Contaminated Soils at the Pavlodar Chemical Plant.
Soils beneath and adjacent to the Pavlodar Chemical Plant in Kazakhstan have been contaminated with elemental mercury as a result of chlor alkali processing using mercury cathode cell technology. The work described in this paper was conducted in preparation for a demonstration of a technology to remove the mercury from the contaminated soils using a vacuum assisted thermal distillation process. The process can operate at temperatures from 250-500 C and pressures of 0.13kPa-1.33kPa. Following vaporization, the mercury vapor is cooled, condensed and concentrated back to liquid elemental mercury. It will then be treated using the Sulfur Polymer Stabilization/Solidification process developed at Brookhaven National Laboratory as described in a companion paper at this conference. The overall project objectives include chemical and physical characterization of the contaminated soils, study of the influence of the soil's physical-chemical and hydro dynamical characteristics on process parameters, and laboratory testing to optimize the mercury sublimation rate when heating in vacuum. Based on these laboratory and pilot-scale data, a full-scale production process will be designed for testing. This paper describes the soil characterization. This work is being sponsored by the International Science and Technology Center.
Date:
September 25, 2004
Creator:
Khrapunov, v. Ye.; Isakova, R. A.; Levintov, B. L.; Kalb, P. D.; Kamberov, I. M. & Trebukhov, A.
Object Type:
Article
System:
The UNT Digital Library
Developing a process for commercial silica production from Salton Sea brines
The goal of this joint LLNL-CalEnergy project is to develop a method for precipitating marketable silica from spent Salton Sea Geothermal Field (SSGF) brines. Many markets for silica exist. We have initially targeted production of silica as a rubber additive. Silica reinforced rubber gives tires less rolling resistance, greater tear strength, and better adhesion to steel belts. Previous silica precipitates produced by CalEnergy from Salton Sea brines were not suitable as rubber additives. They did not to disperse well in the rubber precursors and produced inferior rubber. CalEnergy currently minimizes silica scaling in some of their production facilities by acidifying the brine pH. The rate of silica precipitation slows down as the pH is lowered, so that energy extraction and brine reinfection are possible without unacceptable amounts of scaling even with more than 700 ppm SiO{sub 2} in solution. We are adding a step in which a small amount of base is added to the acidified brine to precipitate silica before reinfection. By carefully controlling the type, rate, and amount of base addition, we can optimize the properties of the precipitate to approach those of an ideal rubber additive.
Date:
September 25, 2000
Creator:
Bourcier, W; McCutcheon, M; Leif, R & Bruton, C
Object Type:
Article
System:
The UNT Digital Library
Laser Wakefield Acceleration Driven by Atf co2 Laser (Stella-Lw).
A new experiment has begun that builds upon the successful Staged Electron Laser Acceleration (STELLA) experiment, which demonstrated high-trapping efficiency and narrow energy spread in a staged laser-driven accelerator. STELLA was based upon inverse free electron lasers (IFEL); the new experiment, called STELLA-LW, is based upon laser wakefield acceleration (LWFA). The first phase of STELLA-LW will be to demonstrate LWFA in a capillary discharge driven by the Brookhaven National Laboratory Accelerator Test Facility (ATF) terawatt CO{sub 2} laser beam. This will be the first time LWFA is conducted at 10.6-{micro}m laser wavelength. It will also be operating in an interesting pseudo-resonant regime where the laser pulse length is too long for resonant LWFA, but too short for self-modulated LWFA. Analysis has shown that in pseudo-resonant LWFA, pulse-steepening effects occur on the laser pulse that permits generation of strong wakefields. Various approaches are being explored for the capillary discharge including polypropylene and hydrogen-filled capillaries. Planned diagnostics for the experiment include coherent Thomson scattering (CTS) to detect the wakefield generation. This will be one of the first times CTS is used on a capillary discharge.
Date:
September 25, 2004
Creator:
Kimura,W. D.; Andreev,N. E.; Babzien,M.; Ben-Zvi, Ilan & Al., Et
Object Type:
Article
System:
The UNT Digital Library
Temporal Incoherence Induced Upon a High-Intensity Beam by Plasma Propagation
Direct measurement of the coherence time of a high-intensity laser beam (600 ps, 10{sup 14} W.cm{sup -2}) after plasma propagation is achieved using a Michelson interferometer. Through plasma of interest for indirect-drive fusion (0.1 x n{sub c}, 1 mm long), a large decrease of the coherence time is observed, from 100 ps to {approx} 10 ps, induced by the interaction between the intense beam and the plasma. This decrease is even stronger as the light is scattered at larger angles from the initial beam angular distribution and as the plasma density is increased. The results coincide with trends observed in recent numerical simulations.
Date:
September 25, 2001
Creator:
Fuchs, J.; Labaune, C.; Depierreux, S.; Bandulet, H.; Michel, P. & Baldis, H. A.
Object Type:
Article
System:
The UNT Digital Library
Application of Prompt Gamma-Ray Analysis to Identify Electrorefining Salt-Bearing Plutonium Oxide at the Plutonium Finishing Plant
Prompt gamma-ray analysis is being implemented at the Plutonium Finishing Plant (PFP) to screen impure plutonium oxide inventory items, received in the mid-1980s from the Rocky Flats Plant, for the presence of sodium chloride and potassium chloride salts from the electrorefining process. A large fraction of these items are suspected to contain electrorefining salts. Because the salts evaporate at the=950C stabilization temperature mandated for long-term storage under the U.S. Department of Energy plutonium oxide stabilization and storage criteria to plug and corrode process equipment, items found to have these salts qualify for thermal stabilization at 750C. The prompt gamma ray energies characteristic of sodium, potassium, chlorine, and other low atomic weight elements arise from the interaction the light elements with alpha radiation from plutonium and americium radioactive decay. High-resolution gamma ray spectrometers designed to detect energies up to {approx}4.5 MeV are used to gather the high-energy prompt gamma spectra.Observation of the presence of the high-energy gamma peaks representing the natural chlorine-35, sodium-23, and potassium-39 isotopes and the sodium-to-chlorine peak area ratios in the range for plutonium oxide materials known to contain the electrorefining salts give the evidence needed to identify plutonium oxide materials at the PFP that qualify for the …
Date:
September 25, 2003
Creator:
Fazzari, Dennis M. (FLUOR HANFORD, INC); Jones, Susan A. (FLUOR HANFORD, INC) & Delegard, Calvin H. (BATTELLE (PACIFIC NW LAB))
Object Type:
Report
System:
The UNT Digital Library
Actinide Measurements by Accelerator Mass Spectrometry at Lawrence Livermore National Laboratory
We report on the development of an accelerator mass spectrometry (AMS) system for the measurement of actinides at Lawrence Livermore National Laboratory. This AMS system is centered on a recently completed heavy isotope beam line that was designed particularly for high sensitivity, robust, high-throughput measurements of actinide concentrations and isotopic ratios. A fast isotope switching capability has been incorporated in the system, allowing flexibility in isotope selection and for the quasi-continuous normalization to a reference isotope spike. Initially, our utilization of the heavy isotope system has concentrated on the measurement of Pu isotopes. Under current operating conditions, background levels equivalent to {approx}1 x 10{sup 5} atoms are observed during routine {sup 239}Pu and {sup 240}Pu measurements. Measurements of samples containing {approx}10{sup 13} {sup 238}U atoms demonstrate that the system provides a {sup 238}U rejection factor during {sup 239}Pu measurements of {approx}10{sup 7}. Measurements of known materials, combined with results from an externally organized inter-comparison program, indicate that our {sup 239}Pu measurements are accurate and precise down to the {micro}Bq level ({approx}10{sup 6} atoms). Recently, we have investigated the performance of our heavy isotope AMS system in measurements of {sup 237}Np and {sup 236}U. Results of these investigations are discussed. The …
Date:
September 25, 2003
Creator:
Brown, T A; Marchetti, A A; Martinelli, R E; Cox, C C; Knezovich, J P & Hamilton, T F
Object Type:
Article
System:
The UNT Digital Library
Sustainable Development in Kazakhastan: Using Oil and Gas Production by-Product Sulfur for Cost-Effective Secondary End-Use Products.
The Republic of Kazakhstan is continuing to develop its extensive petroleum reserves in the Tengiz region of the northeastern part of the Caspian Sea. Large quantities of by-product sulfur are being produced as a result of the removal of hydrogen sulfide from the oil and gas produced in the region. Lack of local markets and economic considerations limit the traditional outlets for by-product sulfur and the buildup of excess sulfur is a becoming a potential economic and environmental liability. Thus, new applications for re-use of by-product sulfur that will benefit regional economies including construction, paving and waste treatment are being developed. One promising application involves the cleanup and treatment of mercury at a Kazakhstan chemical plant. During 19 years of operation at the Pavlodar Khimprom chlor-alkali production facility, over 900 tons of mercury was lost to the soil surrounding and beneath the buildings. The Institute of Metallurgy and Ore Benefication (Almaty) is leading a team to develop and demonstrate a vacuum-assisted thermal process to extract the mercury from the soil and concentrate it as pure, elemental mercury, which will then be treated using the Sulfur Polymer Stabilization/Solidification (SPSS) process. The use of locally produced sulfur will recycle a low-value industrial …
Date:
September 25, 2004
Creator:
Kalb, P. D.; Vagin, S.; Beall, P. W. & Levintov, B. L.
Object Type:
Article
System:
The UNT Digital Library
Summary of the Hanford Site Environmental Report for Calendar Year 2001
This booklet summarizes the Hanford Site Environmental Report for Calendar Year 2001. The report includes information and summary data that describe environmental management performance at the site, demonstrate the status of the site's compliance with applicable federal, state, and local environmental laws and regulations, and highlight significant environmental monitoring and surveillance programs and efforts. The document is written to meet requirements and guidelines of the U.S. Department of Energy (DOE) and the needs of the public.
Date:
September 25, 2002
Creator:
Hanf, Robert W.; O'Connor, Georganne P. & Poston, Ted M.
Object Type:
Report
System:
The UNT Digital Library
Simulation of Chamber Transport for Heavy-Ion-Fusion Drivers
The heavy-ion fusion (HIF) community recently developed a power-plant design that meets the various requirements of accelerators, final focus, chamber transport, and targets. The point design is intended to minimize physics risk and is certainly not optimal for the cost of electricity. Recent chamber-transport simulations, however, indicate that changes in the beam ion species, the convergence angle, and the emittance might allow more-economical designs.
Date:
September 25, 2003
Creator:
Sharp, W. M.; Callahan, D. A.; Tabak, M.; Yu, S. S.; Peterson, P. F.; Rose, D. V. et al.
Object Type:
Article
System:
The UNT Digital Library
High-Beam-Quality Optical Parametric Chirped-Pulse Amplification in Periodically-Poled KTiOPO4
We have demonstrated a high-gain optical parametric chirped-pulse amplifier for Nd:glass-based short-pulse laser systems based on periodically poled potassium-titanyl-phosphate. Our amplifier produced high single-pass gain, broad bandwidth, excellent beam quality and stability.
Date:
September 25, 2003
Creator:
Ebbers, C A; Schmidt, J R & Jovanovic, I
Object Type:
Article
System:
The UNT Digital Library
Test of the ITER Central Solenoid Model Coil and CS Insert
The Central Solenoid Model Coil (CSMC) was designed and built from 1993 to 1999 by an ITER collaboration between the US and Japan, with contributions from the European Union and the Russian Federation. The main goal of the project was to establish the superconducting magnet technology necessary for a large-scale fusion experimental reactor. Three heavily instrumented insert coils were built to cover a wide operational space for testing. The CS Insert, built by Japan, was tested in April-August of 2000. The TF Insert, built by Russian Federation, will be tested in the fall of 2001. The NbAl Insert, built by Japan, will be tested in 2002. The testing takes place in the CSMC Test Facility at the Japan Atomic Energy Research Institute, Naka, Japan. The CSMC was charged successfully without training to its design current of 46 kA to produce 13 T in the magnet bore. The stored energy at 46 kA was 640 MJ. This paper presents the main results of the CSMC and the CS Insert testing--magnet critical parameters, ac losses, joint performance, quench characteristics and some results of the post-test analysis.
Date:
September 25, 2001
Creator:
Martovetsky, N.; Michael, P.; Minervini, J.; Radovinsky, A.; Takayasu, M.; Gung, C. Y. et al.
Object Type:
Article
System:
The UNT Digital Library