Ion Replacement Program Annual Report: 1993 (open access)

Ion Replacement Program Annual Report: 1993

Annual report of the Ion Replacement Electrorefining Program at Aronne National Laboratory describing their research and activities. There are three key accomplishments highlighted for the year: (1) identification of a suitable sodium(beta){double_prime}-alumina/molten salt electrolyte system that functions reproducibly at 723 K, (2) actual separation of dysprosium and lanthanum in experiments, and (3) the identification of a metal alloy, Li{sub x}Sb, as an alternative ion replacement electrode.
Date: July 1993
Creator: Tomczuk, Z.; Willit, J. L. & Fischer, A. K.
Object Type: Report
System: The UNT Digital Library
User`s Guide for the Casting Process Simulator Software CaPS-2D, Version 1.0 (open access)

User`s Guide for the Casting Process Simulator Software CaPS-2D, Version 1.0

Most casting defects occur during initial pouring and therefore the design of the running system, which guides the metal from the ladle into the mold, is crucial. Traditionally, the running system and mold filling are designed by trial and error, which is tedious, time consuming, and expensive. The uncertainties that remain can be overcome by a computer simulation that demonstrates the actual process of mold filling and subsequent solidification. Computer simulation of various processes has become more and more common in recent years. The cost-effectiveness of making flawless castings has made the foundry worker more aware of the process of mold filling, identification of hot spots, etc. The macroscopic Casting Process Simulator (CaPS) software combines heat transfer and fluid flow aspects and can describe a variety of solidification aspects, including mold filling. CaPS is a two-dimensional time-dependent computer code involving a finite-volume formulation for the mass, momentum. and energy equations. CaPS has the following characteristics. CaPS uses the PATRAN geometric modeling package for constructing the geometry, generating a neutral file consisting of a list of named components, and post-processing of the simulation results; building the geometry independently of the mesh is a time-saving procedure. A structured mesh generator of structured …
Date: July 1993
Creator: Domanus, H. M.; Schmitt, R. C. & Ahuja, S.
Object Type: Report
System: The UNT Digital Library
The Future of Remote Sensing From Space: Civilian Satellite Systems and Applications (open access)

The Future of Remote Sensing From Space: Civilian Satellite Systems and Applications

This report examines issues related to the development and operation of publicly funded U.S. and foreign civilian remote sensing systems. It also explores the military and intelligence use of data gathered by civilian satellites. In addition, the report examines the outlook for privately funded and operated remote sensing systems.
Date: July 1993
Creator: United States. Congress. Office of Technology Assessment.
Object Type: Report
System: The UNT Digital Library
Adult Literacy and New Technologies: Tools for a Lifetime (open access)

Adult Literacy and New Technologies: Tools for a Lifetime

Adult education needs are difficult to define and difficult to meet; what constitutes adequate literacy changes continually as the demands facing individuals grow more complex. This report is an attempt to identify those capabilities, along with limitations, and outline how new information technologies can be marshaled to meet the goal of a fully literate citizenry.
Date: July 1993
Creator: United States. Congress. Office of Technology Assessment.
Object Type: Report
System: The UNT Digital Library
Alternative Coca Reduction Strategies in the Andean Region (open access)

Alternative Coca Reduction Strategies in the Andean Region

This report identifies opportunities for and constraints to reducing Andean coca production through: 1) improving U.S. alternative development efforts and 2) applying biological control technology (bio-control) to eradicate illegally produced coca.
Date: July 1993
Creator: United States. Congress. Office of Technology Assessment.
Object Type: Report
System: The UNT Digital Library
Alternative Feedstocks Program Technical and Economic Assessment: Thermal/Chemical and Bioprocessing Components (open access)

Alternative Feedstocks Program Technical and Economic Assessment: Thermal/Chemical and Bioprocessing Components

This resource document on biomass to chemicals opportunities describes the development of a technical and market rationale for incorporating renewable feedstocks into the chemical industry in both a qualitative and quantitative sense. The term "renewable feedstock?s" can be defined to include a huge number of materials such as agricultural crops rich in starch, lignocellulosic materials (biomass), or biomass material recovered from a variety of processing wastes.
Date: July 1, 1993
Creator: Bozell, J. J. & Landucci, R.
Object Type: Report
System: The UNT Digital Library
Lower hybrid wave coupling in PBX-M (open access)

Lower hybrid wave coupling in PBX-M

The coupling of the waves launched from a 4.6 GHz lower hybrid system into PBX-M plasmas has been studied for both L-mode and H-mode plasmas. The characteristics of the plasma in front of the LH coupler have been measured with a fast Langmuir probe. The reflected power of the coupler has been measured across the transition to H-mode as a function of phase and the distance between the coupler and the separatrix. A transient rise in the LH reflection coefficient was observed near the L-H transition under some conditions. Coupling depends primarily on the electron density in the vicinity of the coupler, and proper positioning of the coupler can compensate for changes in the plasma edge due to H-mode transitions. Good coupling can be maintained throughout the H-mode.
Date: July 1, 1993
Creator: Bell, R.E.; Bernabei, S.; Greenough, N.; Lagin, L.; Leblanc, B.; Okabayashi, M. et al.
Object Type: Report
System: The UNT Digital Library
The radial scale length of turbulent fluctuations in the main core of TFTR plasmas (open access)

The radial scale length of turbulent fluctuations in the main core of TFTR plasmas

A new theory of microwave reflectometry in tokamaks has been developed which accounts for all the major characteristics of waves reflected from strong fluctuations near the cutoff layer. The theory has been used for studying the turbulence in the main core of neutral beam heated plasmas of the TFTR tokamak in the supershot regime. The results indicate that the radial correlation length of density fluctuations is a weak decreasing function of beam power, from [approximately]4 cm in Ohmic to [approx]2 cm at 14 MW of heating power. This corresponds to the range of wavelengths k[sub [perpendicular]][rho][sub i][approx]0.1--0.3. Over the same interval of heating powers, the level of density fluctuations is observed to steadily increase with beam power by more than an order of magnitude. This trend is inconsistent with mixing length estimates of the fluctuation level.
Date: July 1, 1993
Creator: Mazzucato, E. & Nazikian, R.
Object Type: Report
System: The UNT Digital Library
ARIES tokamak reactor study (open access)

ARIES tokamak reactor study

This report examines the feasibility of a standard poloidal diverter design for ARIES- 2/4 with the determination of the peak thermal loading on, and the plasma temperature facing a poloidal double null diverter. The ARIES-2/4 reactors produce 2,141 MW of fusion power of which 1712 MW is contained in the neutron channel. Of the remaining 429 MW of charged particle power, 47 MW is radiated from the core by bremsstrahlung and synchrotron modes to the vessel walls. The remaining 382 MW of charged particle or transport power crosses the core/edge interface. The fact that the bulk of the power is contained in the neutron channel makes the application of a poloidal divertor possible. The ARIES-2/4 diverter constraints for peak heat load and peak particle temperature are set by current technology and materials knowledge. Divertor geometry constraints are imposed by the plasma equilibrium and the 2/4 vacuum vessel. The diverter heat load and plasma temperatures are determined from edge particle and energy balances. These balances are important characteristics of the plasma edge because the transport power from the plasma core must pass through the edge and be deposited on tokamak components. The Braams' B2 code is a multifluid ion and electron …
Date: July 1, 1993
Creator: Steiner, D.
Object Type: Report
System: The UNT Digital Library
Asymptotic analysis: Working Note No. 2, Approximation of integrals (open access)

Asymptotic analysis: Working Note No. 2, Approximation of integrals

In this note we discuss the approximation of integrals that depend on a parameter. The basic tool is simple, namely, integration by parts. Of course, the power of the tool is evidenced in applications. The applications are many; they include Laplace integrals, generalized Laplace integrals, Fourier integrals, and Stokes' method of stationary phase for generalized Fourier integrals. These results illustrate beautifully Hardy's concept of applications of mathematics, that is, certain regions of mathematical theory in which the notation and the ideas of the (method of integration by parts] may be used systematically with a great gain in clearness and simplicity''. The notation differs slightly from Working Note No. 1, for reasons that are mainly historical. The asymptotic analysis of integrals originated in complex analysis, where the (real or complex) parameter, usually denoted by x, is usually introduced in such a way that the interesting behavior of the integrals occurs when x [yields] [infinity] in some sector of the complex plane. As there is nothing sacred about notation, and historical precedent is as good a guide as any, we follow convention and denote the parameter by x, focusing on the behavior of integrals as x [yields] [infinity] along the real axis …
Date: July 1, 1993
Creator: Garbey, M. (Lyon-1 Univ., 69 - Villeurbanne (France). Lab. d'Analyse Numerique) & Kaper, H.G. (Argonne National Lab., IL (United States))
Object Type: Report
System: The UNT Digital Library
Thermally excited proton spin-flip laser emission in tokamaks (open access)

Thermally excited proton spin-flip laser emission in tokamaks

Based on statistical thermodynamic fluctuation arguments, it is shown here for the first time that thermally excited spin-flip laser emission from the fusion product protons can occur in large tokamak devices that are entering the reactor regime of operation. Existing experimental data from TFTR supports this conjecture, in the sense that these measurements are in complete agreement with the predictions of the quasilinear theory of the spin-flip laser.
Date: July 1, 1993
Creator: Arunasalam, V. & Greene, G. J.
Object Type: Report
System: The UNT Digital Library
Advanced heat pump cycle (open access)

Advanced heat pump cycle

The desorption and absorption process of a vapor compression heat pump with a solution circuit (VCHSC) proceeds at gliding temperature intervals, which can be adjusted over a wide range. In case that the gliding temperature intervals in the desorber and the absorber overlap, a modification of the VCHSC employing a desorber/absorber heat exchange (DAHX) can be introduced, which results in an extreme reduction of the pressure ratio. Although the DAHX-cycle has features of a two-stage cycle, it still requires only one solution pump, one separator and one compressor. Such a cycle for the working pair ammonia/water is built in the Energy Laboratory of the Center for Environmental Energy Engineering at the University of Maryland. The experimental results obtained with the research plant are discussed and compared to those calculated with a simulation program. The possible temperature lift between heat source and heat sink depending on the achievable COP are presented.
Date: July 1, 1993
Creator: Groll, E.A. & Radermacher, R.
Object Type: Report
System: The UNT Digital Library
Kinetic theory of geomagnetic pulsations 2. Ion flux modulations by transverse waves (open access)

Kinetic theory of geomagnetic pulsations 2. Ion flux modulations by transverse waves

Ion flux modulations by ultra-low-frequency radially polarized geomagnetic pulsations are examined theoretically based on the gyrokinetic analysis of Chen and Hasegawa. The theoretical results thus contain important effects such as plasma anisotropy and inhomogeneities, finite Larmor radii, realistic magnetic field, magnetic trapping, and wave mode structures. The predicted properties are consistent with the satellite observations [Takahashi et al.] and further support the drift-Alfven ballooning mode as a primary instability candidate. The analysis, furthermore, demonstrates that, in the case of highly energetic ions, it is crucial to include the finite-Larmor-radius effects self-consistently in order to properly analyze and compare with the satellite observations.
Date: July 1, 1993
Creator: Liu Chen (Princeton Plasma Physics Lab., NJ (United States)) & Hasegawa, Akira (Osaka Univ. (Japan))
Object Type: Report
System: The UNT Digital Library
The theory of relativistic heavy ion collisions. [Dept. of Physics, State Univ. of New York at Stony Brook] (open access)

The theory of relativistic heavy ion collisions. [Dept. of Physics, State Univ. of New York at Stony Brook]

This program began in January 1993. Its primary goals are studies of highly excited matter and its production in nuclear collisions at very high energies. After a general orientation on the project, abstracts describing the contents of completed papers and providing some details of current projects are given. Principal topics of interest are the following: the dynamics of nuclear collisions at very high energies (RHIC and LHC), the dynamics of nuclear collisions at AGS energies, high-temperature QCD and the physics of the quark-gluon plasma, and the production of strangelets and other rare objects.
Date: July 1, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Inflow characteristics associated with high-blade-loading events in a wind farm (open access)

Inflow characteristics associated with high-blade-loading events in a wind farm

The stochastic characteristics of the turbulent inflow have been shown to be of major significance in the accumulation of fatigue in wind turbines. Because most of the wind turbine installations in the US have taken place in multi-turbine or wind farm configurations, the fatigue damage associated with the higher turbulence levels within such arrangements must be taken into account when making estimates of component service lifetimes. The simultaneous monitoring of two adjacent wind turbines over a wide range of turbulent inflow conditions has given the authors more confidence in describing the structural load distributions that can be expected in such an environment. The adjacent testing of the two turbines allowed the authors to postulate that observed similarities in the response dynamics and load distributions could be considered quasi-universal, while the dissimilarities could be considered to result from the differing design of the rotors. The format has also allowed them to begin to define appropriate statistical load distribution models for many of the critical components in which fatigue is a major driver of the design. In addition to the adjacent turbine measurements, they also briefly discuss load distributions measured on a teetered-hub turbine.
Date: July 1, 1993
Creator: Kelley, N. D.
Object Type: Article
System: The UNT Digital Library
Texas Register, Volume 18, Number 54, Part II, Pages 4639-4709, July 16, 1993 (open access)

Texas Register, Volume 18, Number 54, Part II, Pages 4639-4709, July 16, 1993

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: July 16, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 54, Part I, Pages 4535-4637, July 16, 1993 (open access)

Texas Register, Volume 18, Number 54, Part I, Pages 4535-4637, July 16, 1993

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: July 16, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 55, Pages 4711-4770, July 20, 1993 (open access)

Texas Register, Volume 18, Number 55, Pages 4711-4770, July 20, 1993

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: July 20, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 56, Pages 4771-4910, July 23, 1993 (open access)

Texas Register, Volume 18, Number 56, Pages 4771-4910, July 23, 1993

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: July 23, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 57, Pages 4911-4969, July 27, 1993 (open access)

Texas Register, Volume 18, Number 57, Pages 4911-4969, July 27, 1993

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: July 27, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 51, Pages 4253-4356, July 2, 1993 (open access)

Texas Register, Volume 18, Number 51, Pages 4253-4356, July 2, 1993

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: July 2, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 52, Pages 4357-4424, July 6, 1993 (open access)

Texas Register, Volume 18, Number 52, Pages 4357-4424, July 6, 1993

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: July 6, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 53, Pages 4425-4533, July 9, 1993 (open access)

Texas Register, Volume 18, Number 53, Pages 4425-4533, July 9, 1993

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: July 9, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: DM-233 (open access)

Texas Attorney General Opinion: DM-233

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, Dan Morales, regarding a legal question submitted for clarification; Whether a Texas Department of Criminal Justice may operate a work program facility that produces goods and services that are marketed for profit or exempted under the Federal Private Industry Enhancement Program and its related question (RQ-504)
Date: July 9, 1993
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History