Nuclear weapons issues in South Asia (open access)

Nuclear weapons issues in South Asia

This report discusses how the US can play a productive mediating role in South Asia by engaging India and Pakistan in an international forum to manage nuclear weapons, as Edward Teller advocated. India and Pakistan have developed their nuclear capabilities because they fear their neighbors, not because they want to threaten fear their neighbors, not because they want to threaten the US. The appropriate response for the US, therefore, is diplomatic engagement and negotiations. In addition to the international approach, encouragement and facilitation of regional and bilateral interactions will also be important. Formal arms control agreements have been reached, but less formal confidence-building measures, and unilateral security pledges may well be combined to form a more secure strategic environment in South Asia than a nuclear armed confrontation across the porous South Asian border.
Date: July 2, 1993
Creator: Joeck, N.
Object Type: Article
System: The UNT Digital Library
Economics of electron beam and electrical discharge processing for post-combustion NO{sub x} control in internal combustion engines (open access)

Economics of electron beam and electrical discharge processing for post-combustion NO{sub x} control in internal combustion engines

This paper discusses the physics and chemistry of non-thermal plasma processing for post-combustion NO{sub x} control in internal combustion engines. A comparison of electron beam and electrical discharge processing is made regarding their power consumption, radical production, NO{sub x} removal mechanisms, and by-product formation. Pollution control applications present a good opportunity for transferring pulsed power techniques to the commercial sector. However, unless advances are made to drastically reduce the price and power consumption of electron beam sources and pulsed power systems, these plasma techniques will not become commercially competitive with conventional thermal or surface-catalytic methods.
Date: August 2, 1993
Creator: Penetrante, B. M.
Object Type: Article
System: The UNT Digital Library
Welding of niobium to stainless (open access)

Welding of niobium to stainless

Experiences are reported of welding niobium to stainless steel for the TESLA accelerator superconducting cavities.
Date: November 2, 1993
Creator: Kuchnir, M. & Hiller, R. E.
Object Type: Report
System: The UNT Digital Library
Cost and quality of fuels for electric utility plants, 1992 (open access)

Cost and quality of fuels for electric utility plants, 1992

This publication presents an annual summary of statistics at the national, Census division, State, electric utility, and plant levels regarding the quantity, quality, and cost of fossil fuels used to produce electricity. The purpose of this publication is to provide energy decision-makers with accurate and timely information that may be used in forming various perspectives on issues regarding electric power.
Date: August 2, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Dual-band infrared capabilities for imaging buried object sites (open access)

Dual-band infrared capabilities for imaging buried object sites

We discuss dual-band infrared (DBIR) capabilities for imaging buried object sizes. We identify physical features affecting thermal contrast needed to distinguish buried object sites from undisturbed sites or surface clutter. Apart from atmospheric transmission and system performance, these features include: object size, shape, and burial depth; ambient soil, disturbed soil and object site thermal diffusivity differences; surface temperature, emissivity, plant-cover, slope, albedo and roughness variations; weather conditions and measurement times. We use good instrumentation to measure the time-varying temperature differences between buried object sites and undisturbed soil sites. We compare near surface soil temperature differences with radiometric infrared (IR) surface temperature differences recorded at 4.7 {plus_minus} 0.4 {mu}m and at 10.6 {plus_minus} 1.0 {mu}m. By producing selective DBIR image ratio maps, we distinguish temperature-difference patterns from surface emissivity effects. We discuss temperature differences between buried object sites, filled hole site (without buried objects), cleared (undisturbed) soil sites, and grass-covered sites (with and without different types of surface clutter). We compare temperature, emissivity-ratio, visible and near-IR reflectance signatures of surface objects, leafy plants and sod. We discuss the physical aspects of environmental, surface and buried target features affecting interpretation of buried targets, surface objects and natural backgrounds.
Date: April 2, 1993
Creator: Del Grande, N. K.; Durbin, P. F.; Gorvad, M. R.; Perkins, D. E.; Clark, G. A.; Hernandez, J. E. et al.
Object Type: Article
System: The UNT Digital Library
A multi-level data-flow architecture for signal and data processing applications. Final report (open access)

A multi-level data-flow architecture for signal and data processing applications. Final report

A grant was awarded to us by the Department of Energy, Office of Energy Research, in May 1987 to support the design and performance analysis of a large grain data-driven multiprocessor system for numerical applications. The basic idea of the work is to apply the data-driven principles of execution at a more appropriate level than conventional ``atomic`` instructions. For this purpose, a level such as that of vector operations was under study. This document represents the final report concerning the results of the research supported by this grant. The goals of the project entailed an analysis of Partial Differential Equation solvers on data-driven environments, a preliminary design of our multi-level architecture, an in-depth study of some of the mechanisms of execution, and a design of the software environment. As enumerated in the original proposal, our work has yielded results in three different domain: Specifications of the application programs; design of the general concepts of the architecture and simulation; implementation of a translating environment; and we discuss each of the above items and examine specific research results.
Date: September 2, 1993
Creator: Gaudiot, J. L.
Object Type: Report
System: The UNT Digital Library
Dealing with the chlorinated solvent situation at the Oak Ridge Y-12 Plant (open access)

Dealing with the chlorinated solvent situation at the Oak Ridge Y-12 Plant

Recent events regarding health and environmental problems associated with the use of chlorinated solvents have prompted the Oak Ridge Y-12 Plant to investigate substitutes for these materials. Since 1987, the purchase of chlorinated solvents at the Y-12 Plant has been reduced by 92%. This has been accomplished by substituting chlorinated solvent degreasing with ultrasonic aqueous detergent cleaning and by substituting chlorinated solvents with less toxic, environmentally friendly solvents for hand-wiping applications. Extensive studies of cleaning ability, compabitility, and effects on welding, bonding, and painting have been conducted to gain approval for use of these solvents. Toxicity and waste disposal were also assessed for the solvents.
Date: August 2, 1993
Creator: Thompson, L. M. & Simandl, R. F.
Object Type: Article
System: The UNT Digital Library
Thermal analysis of the horizontal shipping container for normal conditions of transport with solar insolation (open access)

Thermal analysis of the horizontal shipping container for normal conditions of transport with solar insolation

A thermal analysis of the horizontal shipping container (HSC) was performed to determine the temperatures at the outer surface of the inner container during normal conditions of transport with incident solar radiation. There are two methods by which this analysis can be performed: (1) it can be run as a steady-state problem where it is assumed that the incident solar radiation is applied to the package 24 hours per day, or (2) it can be run as a cyclic transient problem where the incident solar radiation is applied for 12 hours per day and the other 12 hours there is assumed to be no incident solar radiation. The steady-state method was initially attempted, but the temperatures determined from this analysis were judged to be significantly higher than one would find in the cyclic case. Thus, it was deemed necessary to perform a transient analysis to determine a more realistic temperature distribution within the HSC during normal conditions of transport. The heat transfer code HEATING 7.1 was used to perform these calculations. HEATING 7.1 is a heat conduction code capable of handling radiation, convection (forced and natural), and heat flux boundary conditions. Heat generation within a material is also possible with …
Date: April 2, 1993
Creator: Stumpfl, E.; Feldman, M. R. & Anderson, J. C.
Object Type: Report
System: The UNT Digital Library
Burst testing of low pressure MKS Baratron{reg_sign} sensors (open access)

Burst testing of low pressure MKS Baratron{reg_sign} sensors

Pressure sensors from ten MKS series 390 and 690 Baratron{reg_sign} capacitance manometers were hydrostatically burst tested by the Engineering and Materials Technology Department (E&MT). Four MKS series 390 Baratron{reg_sign} 0{minus}10 torr sensors had an average case burst pressure of 915 psig. Five MKS series 690 Baratron{reg_sign} 0{minus}1 torr sensors had an average case burst pressure of 1301 psig, and one MKS series 690 Baratron{reg_sign} 0{minus}1000 torr sensor had a case burst pressure of 938 psig.
Date: August 2, 1993
Creator: Wermer, J. R.
Object Type: Report
System: The UNT Digital Library
Studies on the implementation of normals and curvatures: 1, The first or mean curvature (open access)

Studies on the implementation of normals and curvatures: 1, The first or mean curvature

We are interested in the construction of the unit normal and the curvatures on some surface which is represented by finite elements. We shall start with the usual definitions for the unit normal and the first and second curvatures on a continuous surface. The unit normal on some surface defined by {var_phi}(x) = 0 is given by {cflx n} = {del} {phi}/{vert_bar}{del} {phi}{vert_bar}, where {del} signifies the familiar three-dimensional gradient operator in space, rather than the two-dimensional gradient on the a surface, which is commonly utilized in differential geometry. The first and second curvatures, J and K, which involve invariant functions of this normal, may be expressed in the form: 2J={del}{center_dot}{cflx n} and 2K={del}{center_dot}[{cflx n}({del}{center_dot}{cflx n}) + {cflx n} {times} ({del} {times} {cflx n}]. The expression for J has the same formal appearance regardless of which gradient operator is used, but the expression for K differs from the two-dimensional version because of the expansion for the Laplacian of a vector.
Date: July 2, 1993
Creator: Rosenkilde, C.
Object Type: Report
System: The UNT Digital Library
JBK-75 stainless steel machinability study (open access)

JBK-75 stainless steel machinability study

The study on forgings characterized machinability of the material by varying cutting speeds and feedrates utilizing four tools for the roughing operation and four tools for the semi-finish operation. Tools tested were obtained from four manufacturers. Twelve parts were machined utilizing an experimental design to determine all possible interactions between cutting speeds and feedrates. To evaluate the machinability of the material, quantitative measures in tool life, tool wear, surface finish, chip control, and material removal rates were analyzed. Benefits gained from this study are: higher material removal rates, longer tool life, minimal tool wear, improved chip control and reliability, increased productivity, and cost minimization.
Date: September 2, 1993
Creator: McManigle, A. P. & Simonis, A. W.
Object Type: Report
System: The UNT Digital Library
DOE lockout/tagout safety handbook (open access)

DOE lockout/tagout safety handbook

In September 1989, the Occupational Safety and Health Administration (OSHA) issued a final ruling on lockout/tagout procedures. This ruling became effective in January 1990 and was eventually incorporated into the Code of Federal Regulations. The purpose of these procedures is to safeguard employees from hazardous energy while performing service or maintenance activities on machines and equipment. Approximately 39 million workers are protected by lockout/tagout procedures in general industry. OSHA estimates that adherence to the requirements in lockout/tagout procedures will eliminate nearly two percent of all workplace deaths. A lockout/tagout program is essential to the safe operation of all Department of Energy (DOE) facilities. The program outlined in this document consists of energy-control procedures, employee training and periodic inspections, and establishes the minimum requirements for lockout/tagout of equipment or system-energy sources that could cause injury to personnel. Because serious consequences can occur due to a lack of understanding and improper administration of this program, this document also includes a method for: Providing guidance for the control of hazardous energy, protecting employees from injury, defining responsibilities, and protecting equipment and facilities from damage.
Date: September 2, 1993
Creator: Ulm, B.
Object Type: Report
System: The UNT Digital Library
[Research at the Notre Dame Radiation Laboratory]. Quarterly report, April 1--June 30, 1993 (open access)

[Research at the Notre Dame Radiation Laboratory]. Quarterly report, April 1--June 30, 1993

Forty-four abstracts are presented of research projects in radiation chemistry, photochemistry, and related topics.
Date: August 2, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Regenerative fuel cells for High Altitude Long Endurance Solar Powered Aircraft (open access)

Regenerative fuel cells for High Altitude Long Endurance Solar Powered Aircraft

High Altitude Long Endurance (HALE) unmanned missions appear to be feasible using a lightweight, high efficiency, span-loaded, Solar Powered Aircraft (SPA) which includes a Regenerative Fuel Cell (RFC) system and novel tankage for energy storage. An existing flightworthy electric powered flying wing design was modified to incorporate present and near-term technologies in energy storage, power electronics, aerodynamics, and guidance and control in order to design philosophy was to work with vendors to identify affordable near-term technological opportunities that could be applied to existing designs in order to reduce weight, increase reliability, and maintain adequate efficiency of components for delivery within 18 months. The energy storage subsystem for a HALE SPA is a key driver for the entire vehicle because it can represent up to half of the vehicle weight and most missions of interest require the specific energy to be considerably higher than 200 W-hr/kg for many cycles. This stringent specific energy requirement precludes the use of rechargeable batteries or flywheels and suggests examination of various RFC designs. An RFC system using lightweight tankage, a single fuel cell (FC) stack, and a single electrolyzer (EC) stack separated by the length of a spar segment (up to 39 ft), has specific …
Date: June 2, 1993
Creator: Mitlitsky, F.; Colella, N. J.; Myers, B. & Anderson, C. J.
Object Type: Article
System: The UNT Digital Library
Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1992--February 24, 1993 (open access)

Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1992--February 24, 1993

During the first quarter of the above contract, all the elements of Task 1 were completed. The first quarterly report presented an overview of a wetland and its increasing use in industrial wastewater treatment. An idealized, reaction engineering description of wetlands was presented to demonstrate how the various processes that occur in a wetland can be modeled. Previous work on the use of wetlands to remove BOD, TSS, Phosphorus and Nitrogen was reviewed. Recent literature on the application of wetland technology to the treatment of petroleum-related wastewater was critically evaluated and an outline of the research plans for the first year was delineated. Further, our literature search (nominally completed under Task 1) unearthed more recent studies (some unpublished) and a summary was included in the second quarterly report. In the second quarterly report, results of our efforts on the construction of a laboratory-type wetland were also reported. Initial studies on the use of wetland amendments such as modified-clays and algae cells were presented and discussed. Adsorption of heavy metal ions, Cu{sup 2+} and Cr(VI) onto soils drawn from the laboratory-type wetland built as a part of this contract has been undertaken and these results are presented and discussed in this …
Date: April 2, 1993
Creator: Kadlec, R. H. & Srinivasan, K. R.
Object Type: Report
System: The UNT Digital Library
Environmental assessment for the recycling of slightly activated copper coil windings from the 184-Inch Cyclotron at Lawrence Berkeley Laboratory, Berkeley, California (open access)

Environmental assessment for the recycling of slightly activated copper coil windings from the 184-Inch Cyclotron at Lawrence Berkeley Laboratory, Berkeley, California

The proposed action is to recycle slightly activated copper that is currently stored in a warehouse leased by Lawrence Berkeley Laboratory (LBL) to a scrap metal dealer. Subsequent reutilization of the copper would be unrestricted. This document addresses the potential environmental effects of recycling and reutilizing the activated copper. In addition, the potential environmental effects of possible future uses by the dealer are addressed. Direct environmental effects from the proposed action are assessed, such as air emissions from reprocessing the activated copper, as well as indirect beneficial effects, such as averting air emissions that would result from mining and smelting an equivalent quantity of copper ore. Evaluation of the human health impacts of the proposed action focuses on the pertinent issues of radiological doses and protection of workers and the public. Five alternatives to the proposed action are considered, and their associated potential impacts are addressed. The no-action alternative is the continued storage of the activated copper at the LBL warehouse. Two recycling alternatives are considered: recycling the activated copper at the Scientific Ecology Group (SEG) facility for re-use at a DOE facility and selling or giving the activated copper to a foreign government. In addition, two disposal alternatives evaluate …
Date: August 2, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
PNL-MA-70 QA Plan (open access)

PNL-MA-70 QA Plan

The Instrument and External Dosimetry Section provides the calibration service for all portable radiation monitoring measuring and test equipment used on the Hanford Site. This document outlines the quality assurance (QA) plan for the Instrument Calibration and Evaluation Program. The scope of the QA plan in outlined, requirement specifications are provided, and QA program/organization and impact level are discussed.
Date: June 2, 1993
Creator: Ethridge, L. J.
Object Type: Report
System: The UNT Digital Library
Graphical user interface for AMOS and POISSON (open access)

Graphical user interface for AMOS and POISSON

A graphical user interface (GUI) exists for building model geometry for the time-domain field code, AMOS. This GUI has recently been modified to build models and display the results of the Poisson electrostatic solver maintained by the Los Alamos Accelerator Code Group called POISSON. Included in the GUI is a 2-D graphic editor allowing interactive construction of the model geometry. Polygons may be created by entering points with the mouse, with text input, or by reading coordinates from a file. Circular arcs have recently been added. Once polygons are entered, points may be inserted, moved, or deleted. Materials can be assigned to polygons, and are represented by different colors. The unit scale may be adjusted as well as the viewport. A rectangular mesh may be generated for AMOS or a triangular mesh for POISSON. Potentials from POISSON are represented with a contour plot and the designer is able to mouse click anywhere on the model to display the potential value at that location. This was developed under the X windowing system using the Motif look and feel.
Date: March 2, 1993
Creator: Swatloski, T. L.
Object Type: Article
System: The UNT Digital Library
Energy information sheets (open access)

Energy information sheets

The National Energy Information Center (NEIC), as part of its mission, provides energy information and referral assistance to Federal, State, and local governments, the academic community, business and industrial organizations, and the general public. Written for the general public, the EIA publication Energy Information Sheets was developed to provide information on various aspects of fuel production, prices, consumption and capability. The information contained herein pertains to energy data as of December 1991. Additional information on related subject matter can be found in other EIA publications as referenced at the end of each sheet.
Date: December 2, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Analytic properties of the OCP and ionic mixtures in the strongly coupled fluid state (open access)

Analytic properties of the OCP and ionic mixtures in the strongly coupled fluid state

Exact results for the Madelung constants and first order anharmonic energies are given for the inverse power potentials with the Coulomb potential as the softest example. Similar exact results are obtained using the analysis of Rosenfeld on the {Gamma} {yields} {infinity} limit for the OCP internal energy, direct correlation function, screening function, and bridge functions. Knowing these exact limits for the fluid phase of the OCP allows one to determine the nature of the thermal corrections to the strongly coupled results. Solutions of the HNC equation modified with the hard sphere bridge function give an example.
Date: December 2, 1993
Creator: DeWitt, H. E.
Object Type: Article
System: The UNT Digital Library
[Research in theoretical nuclear physics]. Progress report (open access)

[Research in theoretical nuclear physics]. Progress report

Research in progress and plans for future investigations are briefly summarized for the following areas: light-ion structure and reactions; nuclear structure; peripheral heavy-ion reactions at medium and high energy; medium-energy heavy-ion collisions and properties of highly excited nuclear matter; and high-energy heavy-ion collisions and QCD plasma.
Date: March 2, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Strongly coupled ionic mixtures and the H/He EOS (open access)

Strongly coupled ionic mixtures and the H/He EOS

This paper summarizes recent work on the strongly coupled OCP and Binary Ionic Mixture equation of state and other thermodynamic quantities in white dwarf interior conditions for both fluid and solid phases with the assumption of a uniform background. Conditions for phase separation of different elements in fluid or solid phases is strongly dependent on deviations from the linear mixing rule which gives the equation of state as an additive function of the OCP equation of state. These deviations turn out to be small (a few parts in 10{sup 5}) and always positive including the case where the fraction of the higher Z component approaches 0. Also the equation of state of strongly coupled light elements (H and He particularly) obtained from simulations with a linear response description of the electrons is given for conditions appropriate to brown dwarf star interiors. Recent Livermore work on a band structure calculation of the enthalpy of H and He mixtures under jovian conditions is discussed. This work leads to a prediction of a high temperature (15,000 K) for miscibility of He in ionized H at 10 Mb.
Date: December 2, 1993
Creator: DeWitt, H. E.
Object Type: Article
System: The UNT Digital Library
Improved measurement accuracy in a Long Trace Profiler: Compensation for laser pointing instability (open access)

Improved measurement accuracy in a Long Trace Profiler: Compensation for laser pointing instability

Laser pointing instability adds to the error of slope measurements taken with the Long Trace Profiler (LTP). As with carriage pitch error, this laser pointing error must be accounted for and subtracted from the surface under test (SUT) slope measurement. In the past, a separate reference beam (REF) allowed characterization of the component of slope error from carriage pitch. However, the component of slope error from laser pointing manifests itself differently in the SUT measured slope. An analysis of angle error propagation is given, and the effect of these errors on measured slope is determined. Then a method is proposed for identifying these errors and subtracting them from the measured SUT slope function. Separate measurements of carriage pitch and laser pointing instability isolate these effects, so that the effectiveness of the error identification algorithm may be demonstrated.
Date: August 2, 1993
Creator: Irick, S. C.
Object Type: Article
System: The UNT Digital Library
Overview of the Chemical Weapons Convention (open access)

Overview of the Chemical Weapons Convention

My subject this morning is a very brief overview of the Chemical Weapons Convention. Much has already been written describing and summarizing the Convention, including several of the Supplementary Papers and the Annex contained within the draft Manual. It is not my goal to restate what many of you already know. Rather, in the short time available, I want to focus on the parts of the Convention that are addressed in the draft Manual, that is, I want to highlight for you those aspects of the CWC that require implementation by individual State Parties. As I do so, I will show you where in the draft Manual each of these matters is addressed so that you can see how our document corresponds to the Convention`s requirements. This will provide a bridge between the plenary sessions and workshops that will consider the implementing measures and the Supplementary Papers in the Manual. In organizing my talk to focus on aspects of the Convention requiring national implementing measures, I necessarily leave out certain of its provisions. Among these intentional omissions are, with all due respect to our hosts, the structure and function of the OPCW, the Annex on Chemicals, and various operational aspects …
Date: December 2, 1993
Creator: Tanzman, E. A.
Object Type: Article
System: The UNT Digital Library