States

Very intense pulse in the groundwater flow in fissurized-porous stratum (open access)

Very intense pulse in the groundwater flow in fissurized-porous stratum

None
Date: November 1, 1999
Creator: Barenblatt, G.I.; Ingerman, E.A.; Shvets, H. & Vazquez, J.L.
Object Type: Article
System: The UNT Digital Library
Identification of the Spawning, Rearing, and Migratory Requirements of Fall Chinook Salmon in the Columbia River Basin : Annual Report 1996-1997. (open access)

Identification of the Spawning, Rearing, and Migratory Requirements of Fall Chinook Salmon in the Columbia River Basin : Annual Report 1996-1997.

None
Date: February 1, 1999
Creator: Tiffan, Kenneth F. & Rondorf, Dennis W.
Object Type: Report
System: The UNT Digital Library
Neural Network Based Energy Storage System Modeling for Hybrid Electric Vehicles (open access)

Neural Network Based Energy Storage System Modeling for Hybrid Electric Vehicles

Demonstrates the application of an artificial neural network (ANN) for modeling the energy storage system of a hybrid electric vehicle.
Date: August 1, 1999
Creator: Bhatikar, S. R.; Mahajan, R. L.; Wipke, K. & Johnson, V.
Object Type: Report
System: The UNT Digital Library
Formation and Reactivity of Biogenic Iron Microminerals (open access)

Formation and Reactivity of Biogenic Iron Microminerals

The overall purpose of the project is to explore and quantify the processes that control the formation and reactivity of biogenic iron microminerals, and the impact of these processes on the solubility of metal contaminants, e.g., uranium, chromium and nickel. The research addresses how surface components of bacterial cells, extracellular organic material, and the aqueous geochemistry of the DIRB microenvironment impacts the mineralogy, chemical state and micromorphology of reduced iron phases.
Date: June 1, 1999
Creator: Beveridge, Terrance J. & Ferris, F. Grant
Object Type: Report
System: The UNT Digital Library
Medical Applications of Space Light-Emitting Diode Technology--Space Station and Beyond (open access)

Medical Applications of Space Light-Emitting Diode Technology--Space Station and Beyond

Space light-emitting diode (LED) technology has provided medicine with a new tool capable of delivering light deep into tissues of the body, at wavelengths which are biologically optimal for cancer treatment and wound healing. This LED technology has already flown on Space Shuttle missions, and shows promise for wound healing applications of benefit to Space Station astronauts.
Date: June 1, 1999
Creator: Whelan, H.T.; Houle, J.M.; Donohoe, D.L.; Bajic, D.M.; Schmidt, M.H.; Reichert, K.W. et al.
Object Type: Report
System: The UNT Digital Library
Hydrogen Release from Irradiated Vanadium Alloy V-4Cr-4Ti (open access)

Hydrogen Release from Irradiated Vanadium Alloy V-4Cr-4Ti

The present work is an attempt to obtain data concerning the influence of neutron and ? irradiation upon hydrogen retention in V-4Cr-4Ti vanadium alloy. The experiments on in-pile loading of vanadium alloy specimens at the neutron flux density 1014 n/cm2s, hydrogen pressure of 80 Pa, and temperatures of 563, 613, and 773 K were carried out using the IVG.1M reactor of the Kazakhstan National Nuclear Center. A preliminary set of loading/degassing experiments with non-irradiated material has been carried out to obtain data on hydrogen interaction with vanadium alloy. The, data presented in this work are related both to non-irradiated and irradiated samples.
Date: September 1, 1999
Creator: Klepikov, A. Kh.; Romanenko, O. G.; Chikhray, E. V.; Tazhibaeva, I. L.; Shestakov, V. P. & Longhurst, Glen Reed
Object Type: Article
System: The UNT Digital Library
MINOS near-detector coil design (open access)

MINOS near-detector coil design

The 980-ton MINOS near detector will be installed in the new NuMI near hall at 100m below grade at Fermilab. It will be assembled from 282 1-inch thick steel plates. The planes are made from low carbon (1006), hot rolled steel and are toroidally magnetized. Each plane will be hung by two 'ears', which are extensions of the octagonal plane structure, similar to the hanging files in a file drawer. The plates have a center-to-center spacing of 5.94 cm. This document has been prepared for the 8/99 Conceptual Design Review of the MINOS near detector coil. It's main goal is to provide a set of references to previous documents and to assemble various design drawings and engineering calculations that have not been included in previous technical memos. It also provides some background material relevant for the coil implementation. Much of the text for this document is edited from the MINOS Detectors Technical Design Report.
Date: August 1, 1999
Creator: Nelson, J. K. & Kilmer, J.
Object Type: Report
System: The UNT Digital Library
RIP INPUT TABLES FROM WAPDEG FOR LA DESIGN SELECTION: ENHANCED DESIGN ALTERNATIVE V (open access)

RIP INPUT TABLES FROM WAPDEG FOR LA DESIGN SELECTION: ENHANCED DESIGN ALTERNATIVE V

The purpose of this calculation is to document (1) the Waste Package Degradation (WAPDEG) version 3.09 (CRWMS M&O 1998b, Software Routine Report for WAPDEG (Version 3.09)) simulations used to analyze degradation and failure of 2-cm thick titanium grade 7 corrosion resistant material (CRM) drip shields (that are placed over waste packages composed of a 2-cm thick Alloy 22 corrosion resistant material (CRM) as the outer barrier and an unspecified material to provide structural support as the inner barrier) as well as degradation and failure of the waste packages themselves, and (2) post-processing of these results into tables of drip shield/waste package degradation time histories suitable for use as input into the Integrated Probabilistic Simulator for Environmental Systems (RIP) version 5.19.01 (Golder Associates 1998) computer code. Performance credit of the inner barrier material is not taken in this calculation. This calculation supports Performance Assessment analysis of the License Application Design Selection (LADS) Enhanced Design Alternative V. Additional details concerning the Enhanced Design Alternative V are provided in a Design Input Request (CRWMS M&O 1999e, Design Input Request for LADS Phase II EDA Evaluations, Item 3).
Date: July 1, 1999
Creator: Mon, K.
Object Type: Report
System: The UNT Digital Library
Search for the Higgs Boson and Technicolor Particles in p anti-p Colisions at sqrt(s) = 1.8 TeV (open access)

Search for the Higgs Boson and Technicolor Particles in p anti-p Colisions at sqrt(s) = 1.8 TeV

In the Standard Model (SM) of the elementary particles, the interactions among the known fundamental fermions (leptons and quarks) are mediated through gauge bosons which obey the symmetry: SU(3) {circle_times} SU(2) {circle_times} U(1). More precisely, the electroweak interaction [4-6] is described by a gauge symmetry SU(2) {circle_times} U(1) which is broken spontaneously. The electroweak symmetry breaking is implemented by the introduction of a complex scalar Higgs field which has a non-zero vacuum expectation value (vev). This way, the lagrangian of the theory remains invariant under SU(2) transformations, but quantization of the fields must start from a ground state which does not exhibit this symmetry, and therefore the full symmetry of the lagrangian is not manifest. Invariance of the theory under local SU(2) transformations implies the presence of vectorial gauge fields which mediate the electroweak interactions. The so called spontaneous symmetry breaking allows the quanta of these gauge fields, the W and Z bosons, to acquire a finite mass. The photon, the particle which mediates the electromagnetic interaction, remains massless. The Higgs boson is one of only two particles in the SM which have not yet been directly observed (the other is the {nu}{sub {tau}}, although there is indirect evidence of …
Date: November 1, 1999
Creator: Cortabitarte, Rocio Vilar & /Cantabria U., Santander
Object Type: Thesis or Dissertation
System: The UNT Digital Library
MINOS far-detector coil design (open access)

MINOS far-detector coil design

The MINOS far detector will be installed a half mile underground in the Soudan mine in northern Minnesota. The 5.4-kt structure is assembled from 8-m wide, 1- inch thick octagonal steel planes. The planes are made from low carbon (1006), hot rolled steel and are toroidally magnetized. The 486 steel planes are arranged as two 'supermodules' of 243 planes each, separated by a 1.5-m long gap to allow space for installation of two separate magnet coils. Each plane is hung by two 'ears', which are extensions of the octagonal plane structure, similar to the hanging files in a file drawer. The steel planes have a center-to-center spacing of 5.94 cm. This document has been prepared for the 8/99 Conceptual Design Review of the MINOS Far Detector Coils. Its main goal is to provide a set of references to previous documents and to assemble various design drawings and engineering calculations that have not been included in previous technical memos. It also provides some background material relevant for the coil implementation. Much of the text for this document is edited from the MINOS Detectors Technical Design Report.
Date: August 1, 1999
Creator: Nelson, J. K. & Kilmer, J.
Object Type: Report
System: The UNT Digital Library
Habitat Evaluation Procedures (HEP) Report : Grand Coulee Dam Mitigation, 1996-1999 Technical Report. (open access)

Habitat Evaluation Procedures (HEP) Report : Grand Coulee Dam Mitigation, 1996-1999 Technical Report.

The purpose of this Habitat Evaluation Procedures (HEP) study was to determine baseline habitat units and to estimate future habitat units for Bonneville Power Administration (BPA) mitigation projects on the Spokane Indian Reservation. The mitigation between BPA and the Spokane Tribe of Indians (STOI) is for wildlife habitat losses on account of the construction of Grand Coulee Dam. Analysis of the HEP survey data will assist in mitigation crediting and appropriate management of the mitigation lands.
Date: July 1, 1999
Creator: Kieffer, B.; Singer, Kelly & Abrahamson, Twa-le
Object Type: Report
System: The UNT Digital Library
Approaches to rid cathodic arc plasmas of macro- andnanoparticles: A review (open access)

Approaches to rid cathodic arc plasmas of macro- andnanoparticles: A review

A major obstacle for the broad application of cathodic arc plasma deposition is the presence of micro- and nanoparticles in the plasma, also often referred to as 'macroparticles'. This paper reviews the formation of macroparticles at cathode spots, their interaction with the arc plasma and substrate, and macroparticle separation and removal from the plasma by various filtering methods. Nineteen variants of filters are discussed, including Aksenov's classic 90{sup o}-duct filter, filters of open architecture, and the concept of stroboscopic filtering.
Date: June 1, 1999
Creator: Anders, Andre
Object Type: Article
System: The UNT Digital Library
Study of the reactions p anti-p -> etac -> 3 eta and p anti-p -> etac' -> 3 eta (open access)

Study of the reactions p anti-p -> etac -> 3 eta and p anti-p -> etac' -> 3 eta

None
Date: January 1, 1999
Creator: Descrovi, Emiliano & U, /Turin
Object Type: Report
System: The UNT Digital Library
Low VOC drying of lumber and wood panel products. Progress report Number 9 (open access)

Low VOC drying of lumber and wood panel products. Progress report Number 9

Results from a multi-year study show that a significant part of the extensive variability observed in oriented strand board (OSB) flake dryer emissions can be traced to physiological effects, and the rest can be attributed to handling and other factors. Low-headspace treatment of lumber was scaled up to the 50 kg level. The amount of turpentine collected was of the same magnitude as that released upon drying lumber. For the process to be economical, the wood must first be brought to about 95 C with steam, and then processed with RF. Attempts to remove VOCs from OSB through low-headspace by placing a curtain over the wood failed because of leaks. A more rigid container will be required. RF-treatment does not alter the gas permeability of lumber.
Date: January 1, 1999
Creator: Yan, H.; Banerjee, S.; Conners, T.; Ingram, L. L.; Dalton, A. T.; Templeton, M. C. et al.
Object Type: Report
System: The UNT Digital Library
Near-infrared spectroscopy. Innovative technology summary report (open access)

Near-infrared spectroscopy. Innovative technology summary report

A near-infrared (NIR) spectroscopy system with a remote fiber-optic probe was developed and demonstrated to measure the water content of high-level radioactive wastes from the underground storage tanks at the Hanford Site in richland Washington. The technology was developed as a cost-effective and safer alternative to the thermogravimetric analysis (TGA) technique in use as the baseline. This work was supported by the Tanks Focus Area (TFA) within the Department of Energy`s (DOE) Office of Science and Technology (OST) in cooperation with the Hanford Tank Waste Remediation System (TWRS) Program.
Date: July 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Vitrification of ion exchange materials. Innovative technology summary report (open access)

Vitrification of ion exchange materials. Innovative technology summary report

Ion exchange is a process that safely and efficiently removes radionuclides from tank waste. Cesium and strontium account for a large portion of the radioactivity in waste streams from US Department of Energy (DOE) weapons production. Crystalline silicotitanate (CST) is an inorganic sorbent that strongly binds cesium, strontium, and several other radionuclides. Developed jointly by Sandia National Laboratory and Texas A and M University, CST was commercialized through a cooperative research and development agreement with an industrial partner. Both an engineered (mesh pellets) and powdered forms are commercially available. Cesium removal is a baseline in HLW treatment processing. CST is very effective at removing cesium from HLW streams and is being considered for adoption at several sites. However, CST is nonregenerable, and it presents a significant secondary waste problem. Treatment options include vitrification of the CST, vitrification of the CST coupled with HLW, direct disposal, and low-temperature processes such as grouting. The work presented in this report demonstrates that it is effective to immobilize CST using a baseline technology such as vitrification. Vitrification produces a durable waste form. CST vitrification was not demonstrated before 1996. In FY97, acceptable glass formulations were developed using cesium-loaded CST obtained from treating supernatants from …
Date: July 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Fusion technology development: Annual report, October 1, 1997--September 30, 1998 (open access)

Fusion technology development: Annual report, October 1, 1997--September 30, 1998

The overall objective of the General Atomics (GA) fusion technology development program is the advancement of the knowledge base needed for next-generation fusion experiments, and ultimately for an economical and environmentally attractive fusion energy source. To achieve this objective, the authors carry out fusion systems design studies to evaluate the technologies and materials needed for next-step experiments and power plants, and they conduct research to develop basic and applied knowledge about these materials and technologies. GA`s fusion technology development program derives from, and draws on, the physics and engineering expertise built up by many years of experience in designing, building, and operating plasma physics experiments. The technology development activities take full advantage of the current DIII-D program and facility. The following sections summarize GA`s FY98 work done in the areas of Fusion Power Plan Design Studies (Section 2), Plasma Interactive Materials (Section 3), Radiation Testing of ITER Magnetic Coil (Section 4), RF Technology (Section 5), Advanced Liquid Plasma Facing Surfaces (Section 6), and Advanced Power Extraction Study (Section 7). The work in these areas continues to address many of the issues that must be resolved for the successful construction and operation of next-generation experiments and, ultimately, the development of safe, …
Date: June 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
DOE standard: Radiological control (open access)

DOE standard: Radiological control

The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal Regulations, Part 835 (10 CFR 835), ``Occupational Radiation Protection``. Failure to comply with these requirements may lead to appropriate enforcement actions as authorized under the Price Anderson Act Amendments (PAAA). While this Standard does not establish requirements, it does restate, paraphrase, or cite many (but not all) of the requirements of 10 CFR 835 and related documents (e.g., occupational safety and health, hazardous materials transportation, and environmental protection standards). Because of the wide range of activities undertaken by DOE and the varying requirements affecting these activities, DOE does not believe that it would be practical or useful to identify and reproduce the entire range of health and safety requirements in this Standard and therefore has not done so. In all cases, DOE cautions the user to review any underlying regulatory and contractual requirements and the primary guidance documents in their original context to ensure that the site program is adequate to ensure continuing compliance with the applicable requirements. To assist …
Date: July 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
In situ bioremediation for the Hanford carbon tetrachloride plume. Innovative technology summary report (open access)

In situ bioremediation for the Hanford carbon tetrachloride plume. Innovative technology summary report

The 200 Area at Hanford (also called the Central Plateau) contains approximately 817 waste sites, 44 facilities to be demolished, and billions of gallons of contaminated groundwater resulting from chemical processing plants and associated waste facilities (e.g., waste tanks). From 1955 to 1973, carbon tetrachloride, nitrate, and other materials were discharged to subsurface liquid waste disposal facilities in the 200 Area. As much as 600,000 kilograms of carbon tetrachloride may have entered the soil column and a portion of this has contaminated the underlying aquifer. In Situ Bioremediation for the Hanford Carbon Tetrachloride Plume (ISB), which is the term used in this report for an in situ treatment process using indigenous micro-organisms with a computer based Accelerated Bioremediation Design Tool (ABDT), remediates groundwater contaminated with volatile organic compounds (VOCs) and nitrates under anaerobic conditions. ISB involves the injection of nutrients into the groundwater and subsequent extraction and re-injection of the groundwater to provide nutrient distribution in the aquifer.
Date: April 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Directory of awardee names (open access)

Directory of awardee names

Standardization of grant and contract awardee names has been an area of concern since the development of the Department`s Procurement and Assistance Data System (PADS). A joint effort was begun in 1983 by the Office of Scientific and Technical Information (OSTI) and the Office of Procurement and Assistance Management/Information Systems and Analysis Division to develop a means for providing uniformity of awardee names. As a result of this effort, a method of assigning vendor identification codes to each unique awardee name, division, city, and state combination was developed and is maintained by OSTI. Changes to vendor identification codes or awardee names contained in PADS can be made only by OSTI. Awardee names in the Directory indicate that the awardee has had a prime contract (excluding purchase orders of $10,000 or less) with, or a financial assistance award from, the Department. Award status--active, inactive, or retired--is not shown. The Directory is in alphabetic sequence based on awardee name and reflects the OSTI-assigned vendor identification code to the right of the name. A vendor identification code is assigned to each unique awardee name, division, city, and state (for place of performance). The same vendor identification code is used for awards throughout the …
Date: July 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Centrifugal shot blasting. Innovative technology summary report (open access)

Centrifugal shot blasting. Innovative technology summary report

At the US Department of Energy (DOE) Fernald Environmental Management Project (FEMP), the Facilities Closure and Demolition Projects Integrated Remedial Design/Remedial Action (RD/RA) work plan calls for the removal of one inch (1 in) depth of concrete surface in areas where contamination with technetium-99 has been identified. This report describes a comparative demonstration between two concrete removal technologies: an innovative system using Centrifugal Shot Blasting (CSB) and a modified baseline technology called a rotary drum planer.
Date: July 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Pipe Explorer{trademark} surveying system. Innovative technology summary report (open access)

Pipe Explorer{trademark} surveying system. Innovative technology summary report

The US Department of Energy`s (DOE) Chicago Operations Office and the DOE`s Federal Energy Technology Center (FETC) developed a Large Scale Demonstration Project (LSDP) at the Chicago Pile-5 Research Reactor (CP-5) at Argonne National Laboratory-East (ANL). The objective of the LSDP is to demonstrate potentially beneficial decontamination and decommissioning (D and D) technologies in comparison with current baseline technologies. The Pipe Explorer{trademark} system was developed by Science and Engineering Associates, Inc. (SEA), Albuquerque, NM as a deployment method for transporting a variety of survey tools into pipes and ducts. Tools available for use with the system include alpha, beta and gamma radiation detectors; video cameras; and pipe locator beacons. Different versions of this technology have been demonstrated at three other sites; results of these demonstrations are provided in an earlier Innovative Technology Summary Report. As part of a D and D project, characterization radiological contamination inside piping systems is necessary before pipes can be recycled, remediated or disposed. This is usually done manually by surveying over the outside of the piping only, with limited effectiveness and risk of worker exposure. The pipe must be accessible to workers, and embedded pipes in concrete or in the ground would have to be …
Date: June 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Position-sensitive radiation monitoring (surface contamination monitor). Innovative technology summary report (open access)

Position-sensitive radiation monitoring (surface contamination monitor). Innovative technology summary report

The Shonka Research Associates, Inc. Position-Sensitive Radiation Monitor both detects surface radiation and prepares electronic survey map/survey report of surveyed area automatically. The electronically recorded map can be downloaded to a personal computer for review and a map/report can be generated for inclusion in work packages. Switching from beta-gamma detection to alpha detection is relatively simple and entails moving a switch position to alpha and adjusting the voltage level to an alpha detection level. No field calibration is required when switching from beta-gamma to alpha detection. The system can be used for free-release surveys because it meets the federal detection level sensitivity limits requires for surface survey instrumentation. This technology is superior to traditionally-used floor contamination monitor (FCM) and hand-held survey instrumentation because it can precisely register locations of radioactivity and accurately correlate contamination levels to specific locations. Additionally, it can collect and store continuous radiological data in database format, which can be used to produce real-time imagery as well as automated graphics of survey data. Its flexible design can accommodate a variety of detectors. The cost of the innovative technology is 13% to 57% lower than traditional methods. This technology is suited for radiological surveys of flat surfaces at …
Date: June 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Innovative directional and position specific sampling technique (POLO). Innovative technology summary report (open access)

Innovative directional and position specific sampling technique (POLO). Innovative technology summary report

The UTD Inc. Position Location (POLO) device is used for identifying the position of characterization sensors in the subsurface. POLO fits within a cone penetrometer rod to quickly and cost-effectively identify sample location, rod tip location, and track the rod path. UTD demonstrated the POLO device at a private site in Virginia and at the DOE Savannah River Site in South Carolina. Results show POLO as accurate as any alternative approach at less than 0.50% error, and at a fraction of the cost. POLO can be used in close proximity to tanks, pipelines, and buildings with greatly reduced risk of puncture and resulting spills--a major improvement over current approaches. POLO only adds about 4% to cost of penetrometer use.
Date: June 1, 1999
Creator: unknown
Object Type: Report
System: The UNT Digital Library