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Altus Times (Altus, Okla.), Vol. 99, No. 272, Ed. 1 Wednesday, January 27, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 27, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, January 27, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 27, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Approach toward development of release standards for D and D cleanup.
The release of materials containing residual radioactivity from a controlled environment in decontamination and decommissioning (D&D) activities has been problematic. The primary impediment to such a release is the lack of a suitable framework within which release standards can be developed. The concept of clearance for radioactive materials was recently introduced by the International Atomic Energy Agency (IAEA) (l). This concept is being evaluated by the international regulatory communities as a basis for setting standards for releasing from control solid materials containing residual radioactivity. Accordingly, both the IAEA (2) and the European Commission (EC) (3) have recently proposed clearance standards. In the US, the Nuclear Regulatory Commission (USNRC) has just begun its rule-making process on clearance. The term ''clearance'' was introduced as a regulatory process for releasing radioactive materials posing negligible risks. A trivial risk level has been determined to be a 10{sup {minus}6} to 10{sup {minus}7} annual risk to an exposed individual, and a population risk of no more than 0.1 for an annual practice. Under these strict constraints, exposure scenarios would be developed to estimate potential doses to affected individuals. Such scenarios may account for processing, disposal, and product end-use of materials. This paper discusses these scenarios and …
Date:
January 27, 1999
Creator:
Chen, S. Y.
Object Type:
Article
System:
The UNT Digital Library
Appropriations for FY1999: Commerce, Justice, and State, the Judiciary, and Related Agencies
This report tracks action by the 105th Congress on FY1999 appropriations for the Departments of Commerce, Justice, and State, the Judiciary, and other related agencies.
Date:
January 27, 1999
Creator:
Knight, Edward
Object Type:
Report
System:
The UNT Digital Library
A Batch Wafer Scale LIGA Assembly and Packaging Technique vai Diffusion Bonding
A technique using diffusion bonding (or solid-state welding) has been used to achieve batch fabrication of two- level nickel LIGA structures. Interlayer alignment accuracy of less than 1 micron is achieved using press-fit gauge pins. A mini-scale torsion tester was built to measure the diffusion bond strength of LIGA formed specimens that has shown successful bonding at temperatures of 450"C at 7 ksi pressure with bond strength greater than 100 Mpa. Extensions to this basic process to allow for additional layers and thereby more complex assemblies as well as commensurate packaging are discussed.
Date:
January 27, 1999
Creator:
Christenson, T.R. & Schmale, D.T.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 76, Ed. 1 Wednesday, January 27, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 27, 1999
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Bills and Resolutions: Examples of How Each Kind is Used
This report provides background information regarding the bill and joint resolution, which must be passed by both houses in identical form, then presented to the President for his approval or disapproval.
Date:
January 27, 1999
Creator:
Beth, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Building technology roadmaps
DOE's Office of Building Technology, State and Community Programs (BTS) is facilitating an industry-led initiative to develop a series of technology roadmaps that identify key goals and strategies for different areas of the building and equipment industry. This roadmapping initiative is a fundamental component of the BTS strategic plan and will help to align government resources with the high-priority needs identified by industry.
Date:
January 27, 1999
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
Chemicals: Optimizing Electric Motor Systems at a Corporate Campus Facility (Technical Case Study)
After conducting an in-house motor system performance evaluation, 3M managed to reduce electricity use by 41%, decrease kilowatt demand by 20%, and reduce steam and chilled water use. Order your copy now and read how the Minnesota-based company was able to do it.
Date:
January 27, 1999
Creator:
Ericksen, E.
Object Type:
Book
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 8, Ed. 1 Wednesday, January 27, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
January 27, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Collegian (Hurst, Tex.), Vol. 11, No. 14, Ed. 1 Wednesday, January 27, 1999
Weekly student newspaper published in Hurst, Texas serving the Tarrant County Junior College District that includes school news and information along with advertising.
Date:
January 27, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Corrective Action Investigation Plan for Corrective Action Unit 500: Test Cell A Septic System, Nevada Test Site, Nevada
This Corrective Action Investigation Plan (CAIP) has been developed in accordance with the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the US Department of Energy, Nevada Operations Office (DOE/NV); the State of Nevada Division of Environmental Protection (NDEP); and the US Department of Defense (FFACO, 1996). The CAIP is a document that provides or references all of the specific information for investigation activities associated with Corrective Action Units (CAUs) or Corrective Action Sites (CASs). According to the FFACO (1996), CASs are sites potentially requiring corrective action(s), and may include solid waste management units, individual disposal sites, or release sites. Corrective Action Units consist of one or more CASs grouped together based on geography, technical similarity, or agency responsibility for the purpose of determining corrective actions. This CAIP will be used in conjunction with the Work Plan for Leachfield Corrective Action Units: Nevada Test Site and Tonopah Test Range, Nevada (DOE/NV, 1998c), hereafter referred to as the Leachfield Work Plan. Under the FFACO, a work plan is an optional planning document that provides information for a CAU or group of CAUs where significant commonality exists. This CAIP contains CAU-specific information including a facility description, environmental sample …
Date:
January 27, 1999
Creator:
Vegas, IT Las
Object Type:
Report
System:
The UNT Digital Library
Costs of Storing and Transporting Hydrogen
An analysis was performed to estimate the costs associated with storing and transporting hydrogen. These costs can be added to a hydrogen production cost to determine the total delivered cost of hydrogen. Storage methods analyzed included compressed gas, liquid hydrogen, metal hydride, and underground storage. Major capital and operating costs were considered over a range of production rates and storage times.
Date:
January 27, 1999
Creator:
Amos, W. A.
Object Type:
Report
System:
The UNT Digital Library
The Cuero Record (Cuero, Tex.), Vol. 105, No. 4, Ed. 1 Wednesday, January 27, 1999
Weekly newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date:
January 27, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Current transport and microstructural evolution in BSCCO tapes fabricated by groove rolling.
The powder-in-tube technique, consisting of wire drawing and rolling, has been widely used to fabricate superconducting tapes for possible electric power applications. In this study, instead of wire drawing, the starting billet was reduced in size by groove rolling. To optimize the deformation and thermomechanical treatment process, wires of varying dimensions were fabricated. The wires were flat-rolled to a final thickness of 250 mm. Short-length tapes were subjected to a series of thermal and deformation steps. Phase development and microstructural evolution during the process were monitored by XRD, SEM, and TEM. The BSCCO-2223 tapes, which were subjected to thermomechanical treatment, had average critical current densities of 18,000 A cm{sup {minus}2}. Colony boundaries, examined by TEM, near the superconductor-silver interface were found to form in certain preferred orientations. Polytypoids of 2212 phase were also observed at the colony boundary. The effects of grain boundary on superconducting order parameter and critical current density have also been examined.
Date:
January 27, 1999
Creator:
Balachandran, U.; Iyer, A. N.; Mironova, M.; Salama, K.; Stolbov, S. & Vipulanandan, C.
Object Type:
Article
System:
The UNT Digital Library
Deep X-Ray Lithography Based Fabrication of Rare-Earth Based Permanent Magnets and their Applications to Microactuators
Precision high aspect-ratio micro molds constructed by deep x-ray lithography have been used to batch fabricate accurately shaped bonded rare-earth based permanent magnets with features as small as 5 microns and thicknesses up to 500 microns. Maximum energy products of up to 8 MGOe have been achieved with a 20%/vol. epoxy bonded melt-spun isotropic Nd2Fe14b powder composite. Using individually processed sub- millimeter permanent sections multipole rotors have been assembled. Despite the fact that these permanent magnet structures are small, their magnetic field producing capability remains the same as at any scale. Combining permanent magnet structures with soft magnetic materials and micro-coils makes possible new and more efficient magnetic microdevices.
Date:
January 27, 1999
Creator:
Christenson, T.R.; Garino, T.J. & Venturini, E.L.
Object Type:
Article
System:
The UNT Digital Library
Defense IRM: Alternatives Should Be Considered in Developing the New Civilian Personnel System
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Department of Defense's (DOD) efforts to reduce the costs associated with civilian personnel management, focusing on: (1) how DOD determines the number and locations for civilian personnel regional service centers and why is there a wide disparity in the number of regional centers among the services; (2) whether DOD is applying the investment principles of the Clinger-Cohen Act in overseeing, managing, and developing the Defense Civilian Personnel Data System (DCPDS); (3) whether DCPDS duplicates the Office of Personnel Management's (OPM) Employee Express System: (4) whether DOD leadership is aware of the extent and cost of the needed modifications to the commercial-off-the-shelf (COTS) software applications; and (5) whether DOD identified and mitigated the risks associated with the major COTS modifications."
Date:
January 27, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Demonstration of packaging of Fernald Silo I waste in chemically bonded phosphate ceramic.
This paper summarizes our experience in bench-scale packaging of Fernald Silo I waste in chemically bonded phosphate ceramics. The waste was received from the Fernald Environmental Management Project (FEMP), and its treatability was studied in our laboratory. This waste contained As{sup 5+}, Ba, Cr{sup 6+}, Ni, Pb, Se{sup 4+}, and Zn as the hazardous contaminants. In addition, the total specific activity of all the radioactive isotopes in the waste was 3.85 {micro}Ci/g, of which that of radium alone was 0.477 {micro}Ci/g. This indicated that radon (a daughter product of the radium) in the waste could present a serious handling problem during this study. For this reason, the waste was handled and stored in a flowing-air glovebox. We made waste form samples with an actual waste loading of 66.05 wt.% and subjected them to the Environmental Protection Agency (EPA) Toxicity Characteristic Leaching Procedure (TCLP). The results showed excellent stabilization of all contaminants. Actual levels detected in the leachate were well below the EPA's most stringent Universal Treatment Standards and in almost all cases were one order of magnitude below this limit. Radioactivity in the leachate was also very low. Alpha activity was 25 {+-} 2.5 pCi/mL, while beta activity was 9.81 …
Date:
January 27, 1999
Creator:
Wagh, A. S.
Object Type:
Article
System:
The UNT Digital Library
Development of Ytterbium doped Sr5(PO4)3F for the Mercury laser project
None
Date:
January 27, 1999
Creator:
Bayramian, A. J.; Marshall, C. D.; Schaffers, K. L.; Payne, S. A.; Bibeau, C.; Lawson, J. et al.
Object Type:
Article
System:
The UNT Digital Library
DEVELOPMENT, TESTING, AND DEMONSTRATION OF AN OPTIMAL FINE COAL CLEANING CIRCUIT
The objective of this project was to improve the efficiency of the fine coal froth flotation circuit in commercial coal preparation plants. The plant selected for this project, Cyprus Emerald Coal Preparation Plant, cleans 1200-1400 tph of Pittsburgh seam raw coal and uses conventional flotation cells to clean the minus 100-mesh size fraction. The amount of coal in this size fraction is approximately 80 tph with an average ash content of 35%. The project was carried out in two phases. In Phase I, four advanced flotation cells, i.e., a Jameson cell, an Outokumpu HG tank cell, an open column, and a packed column cell, were subjected to bench-scale testing and demonstration. In Phase II, two of these flotation cells, the Jameson cell and the packed column, were subjected to in-plant, proof-of-concept (POC) pilot plant testing both individually and in two-stage combination in order to ascertain whether a two-stage circuit results in lower levelized production costs. The bench-scale results indicated that the Jameson cell and packed column cell would be amenable to the single- and two-stage flotation approach. POC tests using these cells determined that single-stage coal matter recovery (CMR) of 85% was possible with a product ash content of 5.5-7%. …
Date:
January 27, 1999
Creator:
Hadley, Steven R.; Mishra, R. Mike & Placha, Michael
Object Type:
Report
System:
The UNT Digital Library
Disposal of oil field wastes and NORM wastes into salt caverns.
Salt caverns can be formed through solution mining in the bedded or domal salt formations that are found in many states. Salt caverns have traditionally been used for hydrocarbon storage, but caverns have also been used to dispose of some types of wastes. This paper provides an overview of several years of research by Argonne National Laboratory on the feasibility and legality of using salt caverns for disposing of nonhazardous oil field wastes (NOW) and naturally occurring radioactive materials (NORM), the risk to human populations from this disposal method, and the cost of cavern disposal. Costs are compared between the four operating US disposal caverns and other commercial disposal options located in the same geographic area as the caverns. Argonne's research indicates that disposal of NOW into salt caverns is feasible and, in most cases, would not be prohibited by state agencies (although those agencies may need to revise their wastes management regulations). A risk analysis of several cavern leakage scenarios suggests that the risk from cavern disposal of NOW and NORM wastes is below accepted safe risk thresholds. Disposal caverns are economically competitive with other disposal options.
Date:
January 27, 1999
Creator:
Veil, J. A.
Object Type:
Article
System:
The UNT Digital Library
Domain decomposition methods for a parallel Monte Carlo transport code
Achieving parallelism in simulations that use Monte Carlo transport methods presents interesting challenges. For problems that require domain decomposition, load balance can be harder to achieve. The Monte Carlo transport package may have to operate with other packages that have different optimal domain decompositions for a given problem. To examine some of these issues, we have developed a code that simulates the interaction of a laser with biological tissue; it uses a Monte Carlo method to simulate the laser and a finite element model to simulate the conduction of the temperature field in the tissue. We will present speedup and load balance results obtained for a suite of problems decomposed using a few domain decomposition algorithms we have developed.
Date:
January 27, 1999
Creator:
Alme, H J; Rodrigue, G H & Zimmerman, G B
Object Type:
Article
System:
The UNT Digital Library
Dynamics of the Si(111) surface phase transition
The authors have used low-energy electron microscopy to investigate the dynamics of the Si(111) 7 x 7 {r_arrow} 1 x 1 phase transition. Because the densities of the two phases differ, the phase transformation is analogous to precipitation in bulk systems: additional material must diffuse to the phase boundaries in order for the transformation to occur. By measuring the size evolution of an ensemble of domains, and comparing the results to simulations, they have identified a new mechanism of precipitate growth. The source of material necessary for the transformation is the random creation of atom/vacancy pairs at the surface. This mechanism contrasts sharply with classical theories of precipitation, in which mass transport kinetics determine the rate of transformation.
Date:
January 27, 1999
Creator:
Hannon, J. B.; Hibino, H.; Bartelt, N. C.; Swartzentruber, Brian S.; Ogino, T. & Kellogg, G. L.
Object Type:
Article
System:
The UNT Digital Library
Dynamics of Wet Oxidation of High-AL-Content III-V Materials
Oxidation of layers of high-Al-content III-V materials by water vapor has become the enabling process for high-efficiency vertical cavity surface emitting lasers (VCSELS) and has potential applications for reducing substrate current leakage in GaAs-on-insulator (GOI) MESFETS. Because of the established importance of wet oxidation in optoelectronic devices and its potential applications in electronic devices, it has become increasingly important to understand the mechanism of wet oxidation and how it might be expected to affect both the fabrication and subsequent operation of devices that have been made using this technique. The mechanism of wet oxidation and the consequence of this mechanism for heterostructure design and ultimate device operation are discussed here.
Date:
January 27, 1999
Creator:
Ashby, C.I.H.
Object Type:
Article
System:
The UNT Digital Library