States

Texas Attorney General Opinion: JC-350 (open access)

Texas Attorney General Opinion: JC-350

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 Cornyn, regarding a legal question submitted for clarification: Whether the Telecommunications Infrastructure Fund Board has authority to spend appropriated funds to inform the general public of its activities and accomplishments and of the opportunities it provides (RQ-0292-JC)
Date: March 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JC-351 (open access)

Texas Attorney General Opinion: JC-351

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 Cornyn, regarding a legal question submitted for clarification: Whether the City of Anson is a home-rule municipality (RQ-0295-JC)
Date: March 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JC-352 (open access)

Texas Attorney General Opinion: JC-352

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 Cornyn, regarding a legal question submitted for clarification; Whether Government Code section 551.125 permits absent members of a governmmental body to participate in a meeting by telephone conference call when a quorum of the governmental body has convened in one location, and related questions (RQ-0297-JC)
Date: March 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JC-385 (open access)

Texas Attorney General Opinion: JC-385

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 Cornyn, regarding a legal question submitted for clarification; Whether a county commissioner may serve as a voluntary fire fighter(RQ-0335-JC).
Date: June 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JC-386 (open access)

Texas Attorney General Opinion: JC-386

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 Cornyn, regarding a legal question submitted for clarification; Collection of payments assessed by a public improvement district (RQ-0336-JC)
Date: June 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JC-387 (open access)

Texas Attorney General Opinion: JC-387

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 Cornyn, regarding a legal question submitted for clarification; Whether section 573.012 of the Health and Safety Code authorizes a municipal peace officer to execute an emergency-detention warrant (RQ-0345-JC)
Date: June 5, 2001
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Committee System Rules Changes in the House, 107th Congress (open access)

Committee System Rules Changes in the House, 107th Congress

This fact sheet details changes in the committee system contained in H. Res. 5, the rules of the House for the 107th Congress, adopted by the House January 3, 2001. This contains information on changes in the committee structure, committee procedure, and committee staff.
Date: January 5, 2001
Creator: Schneider, Judy
Object Type: Report
System: The UNT Digital Library
Basic Federal Budgeting Terminology (open access)

Basic Federal Budgeting Terminology

This report is about Basic Federal Dudgeting Terminology.
Date: March 5, 2001
Creator: Heniff, Bill, Jr.
Object Type: Report
System: The UNT Digital Library
NIF PEPC LRU Test Stand Safety Note Addendum (open access)

NIF PEPC LRU Test Stand Safety Note Addendum

It is necessary that the NIF PEPC LRU Test Stand be modified to accommodate a new experiment. This modification will involve boring two 1/2 inch holes in the Center Loaded Upper Beam of the stand. These holes will allow a small wire to pass through half of the length of one of the long sections of 80/20 part 3030. The holes could adversely effect the load-bearing capabilities of an important structural member of the stand so calculations must be done to assure a minimal risk of part failure.
Date: September 5, 2001
Creator: Mason, D
Object Type: Report
System: The UNT Digital Library
Signal and imaging sciences workshop 1999 proceedings (open access)

Signal and imaging sciences workshop 1999 proceedings

None
Date: January 5, 2001
Creator: Candy, J V
Object Type: Report
System: The UNT Digital Library
Theory Issues for Induced Plasma Convection Experiments in the Divertor of the MAST Spherical Tokamak (open access)

Theory Issues for Induced Plasma Convection Experiments in the Divertor of the MAST Spherical Tokamak

This paper surveys theory issues associated with inducing convective cells through divertor tile biasing in a tokamak to broaden the scrape-off layer (SOL). The theory is applied to the Mega-Ampere Spherical Tokamak (MAST), where such experiments are planned in the near future. Criteria are presented for achieving strong broadening and for exciting shear-flow turbulence in the SOL; these criteria are shown to be attainable in practice. It is also shown that the magnetic shear present in the vicinity of the X-point is likely to confine the potential perturbations to the divertor region below the X-point, leaving the part of the SOL that is in direct contact with the core plasma intact. The current created by the biasing and the associated heating power are found to be modest.
Date: September 5, 2001
Creator: Cohen, R. H.; Fielding, S.; Helander, P. & Ryutov, D. D.
Object Type: Article
System: The UNT Digital Library
Development of Components for Wavelength Division Multiplexing Over Parallel Optical Interconnects (open access)

Development of Components for Wavelength Division Multiplexing Over Parallel Optical Interconnects

Parallel optical interconnects based on multimode fiber ribbon cables are emerging as a robust, high-performance data link technology that enhances throughput by using parallel arrays of fibers. While this technology has primarily been implemented as single wavelength point-to-point links, it can be significantly enhanced by wavelength division multiplexing (WDM). WDM enables both increased point-to-point bandwidth as well as more complex interconnect topologies and routing approaches that are particularly attractive for massively parallel processing (MPP) systems. Exploiting the advantages of WDM interconnects requires multi-wavelength sources, a low loss routing fabric, and small footprint wavelength selective filter modules. The Lambda-connect project ({gamma}- Connect) at Lawrence Livermore National Laboratory is a technology development and proof-of-principle demonstration of the enabling hardware for WDM parallel optical interconnects for use in massively parallel processing systems and other high-performance data link applications. This dissertation demonstrates several key system components and technologies for {gamma}-Connect.
Date: July 5, 2001
Creator: Patel, R
Object Type: Report
System: The UNT Digital Library
NIF Power Conditioning System Testing at LLNL (open access)

NIF Power Conditioning System Testing at LLNL

The National Ignition Facility (NIF) is now under construction at the Lawrence Livermore National Laboratory (LLNL). The Power Conditioning System (PCS) for NIF, when completed will consist of a 192 nearly identical 2 megajoule capacitor storage banks driving 7680 two meter long flashlamps. A fully integrated single-module test facility was completed in August of 2000 at LLNL. The purpose to the Test Facility is to conduct Reliability and Maintainability (RAM) testing of a true ''First Article'' system (built to the final drawing package as opposed to a prototype). The test facility can be fired once every ten minutes with a total peak output current of 580kA with a pulse width of 400us. To date over 4000 full power shots have been conducted at this facility.
Date: June 5, 2001
Creator: Fulkerson, E S; Newton, M; Hulsey, s; Hammon, J & Moore, W
Object Type: Article
System: The UNT Digital Library
Technical Advances in the Continuous Melting of Phosphate Laser Glass (open access)

Technical Advances in the Continuous Melting of Phosphate Laser Glass

Continuous melting of phosphate laser glass is now being used for the first time to prepare meter-scale amplifier optics for megajoule lasers. The scale-up to continuous melting from the previous one-at-a-time ''discontinuous'' batch process has allowed for the production of glass at rates more than 20 times faster, 5 times cheaper, and with 2-3 times better optical quality. Almost 8000 slabs of laser glass will be used in high-energy, high-peak-power laser systems that are being designed and built for fusion energy research. The success of this new continuous melting process, which is a result of a six year joint R&D program between government and industry, stems from numerous technical advances which include (1) dehydroxylating the glass to concentrations less than {approx}100 ppm OH; (2) minimizing damage-causing Pt-inclusions; (3) preventing glass fracture; (4) minimizing impurities such as Cu and Fe to <20 ppm; (5) improving forming methods to get high optical homogeneity glass; and (6) developing large aperture quality assurance tools to verify properties of the glass.
Date: September 5, 2001
Creator: Suratwala, T.; Thorsness, C.; Campbell, J.; Takeuchi, K.; Suzuki, K.; Yamamoto, K. et al.
Object Type: Article
System: The UNT Digital Library
Immobilization of uranium and plutonium into borobasalt, pyroxene and andradite mineral-like compositions (open access)

Immobilization of uranium and plutonium into borobasalt, pyroxene and andradite mineral-like compositions

The immobilization of plutonium-containing wastes into stable solid compositions is one of the problems to be solved in the disposal of radioactive wastes. Research efforts on the selection, preparation with the use of the cold crucible induction melter (CCIM) technology, and investigation of materials that are most suitable for immobilizing plutonium-containing wastes of different origin have been carried out at the All-Russian Scientific Research Institute of Inorganic Materials (VNIINM) and the Institute of the Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Russian Academy of Sciences within the framework of agreements with Lawrence Livermore National Laboratory (LLNL, USA) regarding material and technical support. This paper presents the data on the synthesis of cerium-, uranium-, and plutonium-containing materials based on borobasalt, pyroxene, and andradite compositions in the muffle furnace and by the CCIM method. Compositions containing up to 15-18 wt% cerium oxide, 8-11 wt% uranium oxide, and 4.6-5.7 wt% plutonium oxide were obtained in laboratory facilities installed in glove boxes. Comparison studies of the materials synthesized in the muffle furnace and CCIM demonstrate the advantages of using the CCIM method. The distribution of components in the materials.
Date: February 5, 2001
Creator: Matyunin, Y I; Jardine, L J & Yudintsev, S V
Object Type: Article
System: The UNT Digital Library
Automated Test System for NIF Flashlamps (open access)

Automated Test System for NIF Flashlamps

This paper describes design and operation of the flashlamp test system, used to evaluate the primary laser flashlamps on the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) in Livermore, California. The tester delivers repetitive high voltage pulses to a series pair of flashlamps at levels closely simulating those encountered in normal operation. Each lamp pair is subjected to a pre-ionization and main pulse shot sequence, with two minute intervals between shots. This capability allows the manufacturer to test and evaluate the flashlamps for infant mortality and longevity before delivery to NIF. All operations are under computer control with fully automated test and data acquisition capabilities requiring minimal operator input. The system is designed to operate continuously. Typical pre-ionization and main pulse outputs are: (1) Pre-ionization Pulse--V{sub chg} = 27kV, I{sub peak} = 3kA, E = 2.4kJ; Pulse Width--(10%-90%) - 200us; Main Pulse--V{sub chg} = 23kV, I{sub peak} - 24kA, E - 78.6kJ; and Pulse Width--(10%-90%) - 350us.
Date: June 5, 2001
Creator: da Silva, T; Creely, P; Hammon, J; Shaw, R; Boyle, R T & Fulkerson, E S
Object Type: Article
System: The UNT Digital Library
Status of Optical Coatings for the National Ignition Facility (open access)

Status of Optical Coatings for the National Ignition Facility

Optical coatings are a crucial part of the pulse trapping and extraction in the NIF multipass amplifiers. Coatings also steer the 192 beams from four linear arrays to four converging cones entering the target chamber. There are a total of 1600 physical vapor deposited coatings on NIF consisting of 576 mirrors within the multipass cavity, 192 polarizers that work in tandem with a Pockels cell to create an optical switch, and 832 transport mirrors. These optics are of sufficient size so that they are not aperture-limiting for the 40-cm x 40 cm beams over an incident range of 0 to 56.4 degrees. These coatings must withstand laser fluences up to 25 J/cm{sup 2} at 1053 nm (1 {omega}) and 3-ns pulse length and are the 1{omega} fluence-limiting component on NIF. The coatings must have a minimal impact on the beam wavefront and phase to maintain beam focusability, minimize scattered loss, and minimize nonlinear damage mechanisms. This is achieved by specifications ranging from <50 MPa coating stress, <1% coating nonuniformity, <4{angstrom} RMS surface roughness, and a PSD specification to control the amplitude of periodic spatial frequencies. Finally, the primary mission of optical coatings is efficient beam steering so reflection and transmission …
Date: March 5, 2001
Creator: Stolz, C. J.; Weinzapfel, C.; Rogowski, G. T.; Smith, D.; Rigatti, A.; Oliver, J. et al.
Object Type: Article
System: The UNT Digital Library
Deterrence and National Security in the Face of an Amorphous Threat (open access)

Deterrence and National Security in the Face of an Amorphous Threat

The National Security threats that we face today and, in turn, the National Security . requirements, are more diverse and complex than they were during the Cold-War from 1945-1990. During that period, and bolstered by the experiences of World Wars I and II, US National Security policy was focused on the stabilization of post WW II country boundaries and containment of the Soviet block and China. The result was the bipolar world in which the nuclear and conventional forces of the United States, the Soviet Union, and their respective allies ensured a measure of political stability through a military stalemate of world wide proportions. The practical result was that large scale changes in national borders were unlikely, but internal conflict within countries, and local conflicts between neighboring countries could still occur, albeit with participation from one or both of the Superpower camps. US National Security Policy was designed primarily for stabilization of the bipolar world on the military front and for competition with the Soviet Union and China on economic and political fronts. The collapse of the Soviet Union changed the global picture. The bipolar world and its military stalemate appear to be gone for the moment and the threat …
Date: January 5, 2001
Creator: Werne, R
Object Type: Report
System: The UNT Digital Library
New U.S. Dollar Coin (open access)

New U.S. Dollar Coin

None
Date: January 5, 2001
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Electronic Transfer Accounts (open access)

Electronic Transfer Accounts

None
Date: January 5, 2001
Creator: Smale, Pauline H.
Object Type: Report
System: The UNT Digital Library
Progress in Infrared Pyrometry Measurements of Shocked Solids (open access)

Progress in Infrared Pyrometry Measurements of Shocked Solids

Temperature measurement is one of the grand challenges still facing experimental shock physics. A shock experiment fundamentally measures E({sigma}{sub x}, {var_epsilon}{sub 11}) which is an incomplete equation of state since temperature (or entropy) remains unspecified. Ideally, one would like to experimentally determine a free energy F(T, {var_epsilon}{sub ij}) from which all other thermo-mechanical properties might be derived. In practice, temperature measurement would allow direct comparison with theory/simulation since T and {var_epsilon}{sub 11} are in most theories the underlying variables. Temperature is a sensitive measure of energy partitioning, knowledge of which would increase our understanding phase boundaries and thermally activated processes (such as chemical reactivity (including dissociation and ionization)). Temperature measurement would also allow a thermodynamically consistent coupling of hydrodynamic equations of state to the material's constitutive (deformation) behavior. The measurement of the temperature of a material that has undergone severe strains at small time-scales is extremely difficult, and we are developing a method using infrared reflectance and pyrometry. The emitted power from a warm surface is measured over a range of wavelengths using a multi-channel IR detector with a response time of {approx}0.1 {micro}s. Each channel of the detector passes the radiation from a selected wavelength interval into a detector. …
Date: November 5, 2001
Creator: Cazamias, J U; Hare, D E & Poulsen, P
Object Type: Article
System: The UNT Digital Library
Budget Resolution Enforcement (open access)

Budget Resolution Enforcement

This report describes how the government enforces budget resolutions using the Congressional Budget Act (C.B.A.) of 1974.
Date: March 5, 2001
Creator: Heniff, Bill, Jr.
Object Type: Report
System: The UNT Digital Library
Intermittent Turbulence in the Very Stable Ekman Layer (open access)

Intermittent Turbulence in the Very Stable Ekman Layer

INTERMITTENT TURBULENCE IN THE VERY STABLE EKMAN LAYER This study describes a Direct Numerical Simulation (DNS) of a very stable Ekman layer in which a constant downward heat flux is applied at the lower boundary, thus cooling the fluid above. Numerical experiments were performed in which the strength of the imposed heat flux was varied. For downward heat fluxes above a certain critical value the turbulence becomes intermittent and, as the heat flux increases beyond this value, the flow tends to relaminarize because of the very strong ambient stratification. We adopt Mahrt?s (1999) definition of the very stable boundary layer as a boundary layer in which intermittent, rather than continuous turbulence, is observed. Numerical experiments were used to test various hypothesis of where in ?stability parameter space? the very stable boundary layer is found. These experiments support the findings of Howell and Sun (1999) that the boundary layer will exhibit intermittency and therefore be categorized as ?very stable?, when the stability parameter, z/L, exceeds unity. Another marker for the very stable boundary layer, Derbyshire?s (1990) maximum heat flux criterion, was also examined. Using a case study drawn from the simulations where turbulence intermittency was observed, the mechanism that causes the …
Date: January 5, 2001
Creator: Barnard, James C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Selection of Sampling Pumps Used for Groundwater Monitoring at the Hanford Site (open access)

Selection of Sampling Pumps Used for Groundwater Monitoring at the Hanford Site

The variable frequency drive centrifugal submersible pump, Redi-Flo2a made by Grundfosa, was selected for universal application for Hanford Site groundwater monitoring. Specifications for the selected pump and five other pumps were evaluated against current and future Hanford groundwater monitoring performance requirements, and the Redi-Flo2 was selected as the most versatile and applicable for the range of monitoring conditions. The Redi-Flo2 pump distinguished itself from the other pumps considered because of its wide range in output flow rate and its comparatively moderate maintenance and low capital costs. The Redi-Flo2 pump is able to purge a well at a high flow rate and then supply water for sampling at a low flow rate. Groundwater sampling using a low-volume-purging technique (e.g., low flow, minimal purge, no purge, or micropurgea) is planned in the future, eliminating the need for the pump to supply a high-output flow rate. Under those conditions, the Well Wizard bladder pump, manufactured by QED Environmental Systems, Inc., may be the preferred pump because of the lower capital cost.
Date: November 5, 2001
Creator: Schalla, Ronald; Webber, William D. & Smith, Ronald M.
Object Type: Report
System: The UNT Digital Library