Computational, electrochemical and {sup 7}Li NMR studies of lithiated disordered carbons electrodes in lithium ion cells. (open access)

Computational, electrochemical and {sup 7}Li NMR studies of lithiated disordered carbons electrodes in lithium ion cells.

Disordered carbons that deliver high reversible capacity in electrochemical cells have been synthesized by using inorganic clays as templates to control the pore size and the surface area. The capacities obtained were much higher than those calculated if the resultant carbon had a graphitic-like structure. Computational chemistry was used to investigate the nature of lithium bonding in a carbon lattice unlike graphite. The lithium intercalated fullerene Li{sub n}-C{sub 60} was used as a model for our (non-graphitic) disordered carbon lattice. A dilithium-C{sub 60} system with a charge and multiplicity of (0,1) and a trilithium-C{sub 60} system with a charge and multiplicity of (0,4) were investigated. The spatial distribution of lithium ions in an electrochemical cell containing this novel disordered carbon material was investigated in situ by Li-7 NMR using an electrochemical cell that was incorporated into a toroid cavity nuclear magnetic resonance (NMR) imager. The concentration of solvated Li{sup +} ions in the carbon anode appears to be larger than in the bulk electrolyte, is substantially lower near the copper/carbon interface, and does not change with cell charging.
Date: January 7, 1998
Creator: Sandi, G.; Gerald, R., II; Scanlon, L. G.; Carrado, K. A. & Winans, R. E.
Object Type: Article
System: The UNT Digital Library
Development of corrosion models for high-level waste containers (open access)

Development of corrosion models for high-level waste containers

None
Date: January 7, 1998
Creator: Farmer, J.C.
Object Type: Article
System: The UNT Digital Library
DOE final report, phase one startup, Waste Receiving and Processing Facility (WRAP) (open access)

DOE final report, phase one startup, Waste Receiving and Processing Facility (WRAP)

This document is to validate that the WRAP facility is physically ready to start up phase 1, and that the managers and operators are prepared to safely manage and operate the facility when all pre-start findings have been satisfactorily corrected. The DOE Readiness Assessment (RA) team spent a week on-site at Waste Receiving and Processing Module 1 (WRAP-1) to validate the readiness for phase 1 start up of facility. The Contractor and DOE staff were exceptionally cooperative and contributed significantly to the overall success of the RA. The procedures and Conduct of Operations areas had significant discrepancies, many of which should have been found by the contractor review team. In addition the findings of the contractor review team should have led the WRAP-1 management team to correcting the root causes of the findings prior to the DOE RA team review. The findings and observations include many issues that the team believes should have been found by the contractor review and corrective actions taken. A significantly improved Operational Readiness Review (ORR) process and corrective actions of root causes must be fully implemented by the contractor prior to the performance of the contractor ORR for phase 2 operations. The pre-start findings as …
Date: January 7, 1998
Creator: Jasen, W.G.
Object Type: Report
System: The UNT Digital Library
EAST - WEST CROSS DRIFT STARTER TUNNEL LAYOUT ANALYSIS (open access)

EAST - WEST CROSS DRIFT STARTER TUNNEL LAYOUT ANALYSIS

The purpose of this analysis is to develop a layout configuration and location for the E-W Cross Drift with the objective to meet repository, testing, and construction requirements.
Date: January 7, 1998
Creator: Goodin, S.
Object Type: Report
System: The UNT Digital Library
Enhancement of Equilibrium Shift in Dehydrogenation Reactions Using a Novel Membrane Reactor Semi-Annual Report: September 1996-February 1997 (open access)

Enhancement of Equilibrium Shift in Dehydrogenation Reactions Using a Novel Membrane Reactor Semi-Annual Report: September 1996-February 1997

A mathematical model is developed to describe the permeation of hydrogen through thin-film palladium ceramic composite membrane in cocurrent flow configuration. Numerical simulation results show that the model under predicts reject composition and over predicts the product purity. These results suggest that the gas phase mass transfer resistance could be important. The difference between the predicted and actual hydrogen composition is less than 12%. Thus the model appears to be adequate for predicting the membrane module performance.
Date: January 7, 1998
Creator: Ilias, Shamsuddin & King, Franklin G.
Object Type: Report
System: The UNT Digital Library
The FY 1998 Battelle performance evaluation and incentive fee agreement (open access)

The FY 1998 Battelle performance evaluation and incentive fee agreement

Fiscal Year 1998 represents the second full year utilizing a results-oriented, performance-based contract. This document describes the critical outcomes, objectives, performance indicators, expected levels of performance, and the basis for the evaluation of the Contractors performance for the period October 1, 1997 through September 30, 1998, as required by Articles entitled Use of Objective Standards of Performance, Self Assessment and Performance Evaluation and Critical Outcomes Review of the Contract DE-AC06-76RL01830. In partnership with the Contractor and other key customers, the Department of Energy (DOE) Richland Operations Office has defined six critical outcomes that serve as the core for the Contractors performance evaluation. The Contractor also utilizes these outcomes as a basis for overall management of the Laboratory. The Critical Outcome system focuses all of the customer desires into specific objectives and performance indicators, with supporting measures to track and foster continued improvement in meeting the needs (outcomes) of the Laboratory`s customers. Section 1 provides information on how the overall performance rating for the Contractor will be determined. Section 2 provides the detailed information concerning critical outcomes, objectives, performance indicators and expectations of performance. Section 3 describes the commitments for documenting and reporting the Laboratory`s self-evaluation.
Date: January 7, 1998
Creator: Davis, T.L.
Object Type: Report
System: The UNT Digital Library
Low Temperature Anomaly of LO Phonons in La{sub 1.85}Cu{sub 3}O{sub 7} (open access)

Low Temperature Anomaly of LO Phonons in La{sub 1.85}Cu{sub 3}O{sub 7}

None
Date: January 7, 1998
Creator: Egami, T.; McQueeney, R.J.; Peetrov, Y.; Vethiraj, M.; Shirane, G. & Endoh, Y.
Object Type: Article
System: The UNT Digital Library
Management assessment of tank waste remediation system contractor readiness to proceed with phase 1B privatization (open access)

Management assessment of tank waste remediation system contractor readiness to proceed with phase 1B privatization

Readiness to Proceed With Phase 1B Privatization documents the processes used to determine readiness to proceed with tank waste treatment technologies from private industry, now known as TWRS privatization. An overall systems approach was applied to develop action plans to support the retrieval and disposal mission of the TWRS Project. The systems and infrastructure required to support the mission are known. Required systems are either in place or plans have been developed to ensure they exist when needed. Since October 1996 a robust system engineering approach to establishing integrated Technical Baselines, work breakdown structures, tank farms organizational structure and configurations, work scope, and costs has become part of the culture within the TWRS Project. An analysis of the programmatic, management, and technical activities necessary to declare readiness to proceed with execution of the mission demonstrates that the system, personnel, and hardware will be on line and ready to support the private contractors. The systems approach included defining the retrieval and disposal mission requirements and evaluating the readiness of the Project Hanford Management Contract (PHMC) team to support initiation of waste processing by the private contractors in June 2002 and to receive immobilized waste shortly thereafter. The Phase 1 feed delivery …
Date: January 7, 1998
Creator: Certa, P. J.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission readiness-to-proceed memorandum (open access)

Tank waste remediation system retrieval and disposal mission readiness-to-proceed memorandum

This memorandum provides a summary of PHMC [Project Hanford Management Contract] team work scope for the Phase 1 TWRS Retrieval and Disposal Mission, a declaration of readiness-to-proceed, a summary of the PHMC team readiness evaluation process, summary results of a structured independent appraisal and financial analysis including information associated with assumptions, risks, and recommendations and, a summary of program plans for the PHMC team`s component of the Phase 1 Mission.
Date: January 7, 1998
Creator: Boston, H.L.
Object Type: Report
System: The UNT Digital Library
TWRS retrieval and disposal mission, immobilized high-level waste storage plan (open access)

TWRS retrieval and disposal mission, immobilized high-level waste storage plan

This project plan has a two fold purpose. First, it provides a plan specific to the Hanford Tank Waste Remediation System (TWRS) Immobilized High-Level Waste (EMW) Storage Subproject for the Washington State Department of Ecology (Ecology) that meets the requirements of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) milestone M-90-01 (Ecology et al. 1996) and is consistent with the project plan content guidelines found in Section 11.5 of the Tri-Party Agreement action plan. Second, it provides an upper tier document that can be used as the basis for future subproject line item construction management plans. The planning elements for the construction management plans are derived from applicable U.S. Department of Energy (DOE) planning guidance documents (DOE Orders 4700.1 (DOE 1992a) and 430.1 (DOE 1995)). The format and content of this project plan are designed to accommodate the plan`s dual purpose. A cross-check matrix is provided in Appendix A to explain where in the plan project planning elements required by Section 11.5 of the Tri-Party Agreement are addressed.
Date: January 7, 1998
Creator: Calmus, R. B.
Object Type: Report
System: The UNT Digital Library
TWRS retrieval and storage mission, immobilized low-activity waste disposal plan (open access)

TWRS retrieval and storage mission, immobilized low-activity waste disposal plan

The TWRS mission is to store, treat, and immobilize highly radioactive Hanford waste (current and future tank waste and the encapsulated cesium and strontium) in a safe, environmentally sound, and cost-effective manner (TWRS JMN Justification for mission need). The mission includes retrieval, pretreatment, immobilization, interim storage and disposal, and tank closure. As part of this mission, DOE has established the TWRS Office to manage all Hanford Site tank waste activities. The TWRS program has identified the need to store, treat, immobilize, and dispose of the highly radioactive Hanford Site tank waste and encapsulated cesium and strontium materials in an environmentally sound, safe, and cost-effective manner. To support environmental remediation and restoration at the Hanford Site a two-phase approach to using private contractors to treat and immobilize the low-activity and high-level waste currently stored in underground tanks is planned. The request for proposals (RFP) for the first phase of waste treatment and immobilization was issued in February 1996 (Wagoner 1996) and initial contracts for two private contractor teams led by British Nuclear Fuels Ltd. and Lockheed-Martin Advanced Environmental Services were signed in September 1996. Phase 1 is a proof-of-concept and commercial demonstration effort to demonstrate the technical and business feasibility of …
Date: January 7, 1998
Creator: Shade, J. W.
Object Type: Report
System: The UNT Digital Library
Valley-Fill Standstones in the Kootenai Formation on the Crow Indian Reservation, South-Central Montana (open access)

Valley-Fill Standstones in the Kootenai Formation on the Crow Indian Reservation, South-Central Montana

Subsurface data is being collected, organized, and a digital database is being prepared. An ACCESS database and PC-Arcview if being used to manage and interpret the data. Well data and base map have been successfully imported to Arcview and customized. All of the four 30 feet by 60 feet geologic surface geologic quadrangles have been scanned to produce a digital surface data base for the Crow Reservation. Field investigations inventoried for the presence of valley-fill deposits. These appear to represent at least a four major westward-trending valley systems.
Date: January 7, 1998
Creator: Lopez, David A.
Object Type: Report
System: The UNT Digital Library
What causes Psi suppression in Pb + Pb Collisions? (open access)

What causes Psi suppression in Pb + Pb Collisions?

A reexamination of hadronic comover scattering indicates that this mechanism cannot explain the observed {psi} suppression in Pb+Pb interactions. The possibility of quark-gluon plasma formation is therefore considered. Implications for RHIC and LHC are also discussed. The agreement of the NA50 Pb+Pb data with naive comover models is reassessed. Previous work is reanalyzed and expanded to include feeding of the {psi}' and {chi}{sub c} states to the {psi}. The effect of color screening is also investigated. Only the {psi}/Drell-Yan (DY) ratios are discussed here.
Date: January 7, 1998
Creator: Vogt, R.
Object Type: Article
System: The UNT Digital Library
Continuous fiber ceramic composites for energy related applications. Final report (open access)

Continuous fiber ceramic composites for energy related applications. Final report

The US Department of Energy has established the Continuous Fiber Ceramic Composites (CFCC) program to develop technology for the manufacture of CFCC`s for use in industrial applications where a reduction in energy usage or emissions could be realized. As part of this program, the Dow Chemical Company explored the manufacture of a fiber reinforced/self reinforced silicon nitride for use in industrial chemical processing. In Dow`s program, CFCC manufacturing technology was developed around traditional, cost effective, tape casting routes. Formulations were developed and coupled with unique processing procedures which enabled the manufacture of tubular green laminates of the dimension needed for the application. An evaluation of the effect of various fibers and fiber coatings on the properties of a fiber reinforced composites was also conducted. Results indicated that fiber coatings could provide composites exhibiting non-catastrophic failure and substantially improved toughness. However, an evaluation of these materials in industrial process environments showed that the material system chosen by Dow did not provide the required performance improvements to make replacement of current metallic components with CFCC components economically viable.
Date: April 7, 1998
Creator: unknown
Object Type: Report
System: The UNT Digital Library
INTERFACE MANAGEMENT FOR THE MINED GEOLOGIC DISPOSAL SYSTEM (open access)

INTERFACE MANAGEMENT FOR THE MINED GEOLOGIC DISPOSAL SYSTEM

None
Date: April 7, 1998
Creator: United States. Department of Energy.
Object Type: Report
System: The UNT Digital Library
Standard data report. 1997 annual report on waste generation and waste minimization progress (open access)

Standard data report. 1997 annual report on waste generation and waste minimization progress

The Laboratory`s central mission of Reducing the Global Nuclear Danger supports core competencies that enable the Laboratory to contribute to defense, civilian, and industrial needs. In turn, the intellectual challenges of civilian and industrial problems strengthen and help support the core competencies required for the national security mission. The ability to do great science underpins all of the applied work. There are five core competencies which support this mission: (1) Stockpile Stewardship ensures the US has safe, secure and reliable nuclear weapons; (2) Stockpile Management provides capabilities ranging from dismantling to remanufacturing of the enduring stockpile; (3) Nuclear Materials Management ensures the availability and safe disposition of plutonium, highly enriched uranium, and tritium; (4) Nonproliferation and Counterproliferation help to deter, detect, and respond to the proliferation of weapons of mass destruction; and (5) Environmental Stewardship provides for the remediation and reduction of wastes from the nuclear weapons complex. This report contains data on volumes of waste generated as part of routine and cleanup/stabilization activities of the lab.
Date: April 7, 1998
Creator: Wilburn, D.
Object Type: Report
System: The UNT Digital Library
Valey-Fill Sandstones in the Kootenai Formation on the Crow Indian Reservation, South-Central Montana (open access)

Valey-Fill Sandstones in the Kootenai Formation on the Crow Indian Reservation, South-Central Montana

Subsurface data is being collected, organized, and a digital database is being prepared for the project. An ACCESS database and PC-Arcview is being used to manage and interpret the data. Well data and base map data have been successfully imported into Arcview and customized to meet the needs of this project. Log tops and other data from about ½ of the exploration wells in the area have been incorporated into the data base. All of the four 30� X 60� geologic quadrangles have been scanned to produce a digital surface geologic data base for the Crow Reservation and all are nearing completion. Formal technical review prior to publication has been completed for the Billings and Bridger Quadrangles; and are underway for the Hardin and Lodge Grass Quadrangles. Field investigations were completed during the last quarter. With the help of a student field assistant from the Crow Tribe, the entire project area was inventoried for the presence of valley-fill deposits in the Kootenai Formation. Field inventory has resulted in the identification of nine exposures of thick valley-fill deposits. These appear to represent at least four major westward-trending valley systems. All the channel localities have been measured and described in detail and …
Date: April 7, 1998
Creator: Lopez, David A.
Object Type: Report
System: The UNT Digital Library
Advanced lubrication systems and materials. Final report (open access)

Advanced lubrication systems and materials. Final report

This report described the work conducted at the National Institute of Standards and Technology under an interagency agreement signed in September 1992 between DOE and NIST for 5 years. The interagency agreement envisions continual funding from DOE to support the development of fuel efficient, low emission engine technologies in terms of lubrication, friction, and wear control encountered in the development of advanced transportation technologies. However, in 1994, the DOE office of transportation technologies was reorganized and the tribology program was dissolved. The work at NIST therefore continued at a low level without further funding from DOE. The work continued to support transportation technologies in the development of fuel efficient, low emission engine development. Under this program, significant progress has been made in advancing the state of the art of lubrication technology for advanced engine research and development. Some of the highlights are: (1) developed an advanced high temperature liquid lubricant capable of sustaining high temperatures in a prototype heat engine; (2) developed a novel liquid lubricant which potentially could lower the emission of heavy duty diesel engines; (3) developed lubricant chemistries for ceramics used in the heat engines; (4) developed application maps for ceramic lubricant chemistry combinations for design purpose; …
Date: May 7, 1998
Creator: Hsu, S.
Object Type: Report
System: The UNT Digital Library
EFFECTS OF MINERALOGY AND CATION-EXCHANGE CAPACITY ON LIGHIUM SORPTION TO YUCCA MOUNTAIN TUFFS. (open access)

EFFECTS OF MINERALOGY AND CATION-EXCHANGE CAPACITY ON LIGHIUM SORPTION TO YUCCA MOUNTAIN TUFFS.

None
Date: May 7, 1998
Creator: Anghel, I.; Turnin, H. J.; Reimus, P. W. & Carey, J. W.
Object Type: Report
System: The UNT Digital Library
Electronic excitation in transmission of relativistic H{sup {minus}} ions through thin foils (open access)

Electronic excitation in transmission of relativistic H{sup {minus}} ions through thin foils

The authors describe a theoretical model to study the transmission of relativistic H{sup {minus}} ions through thin carbon foils. The approach is based on a Monte Carlo solution of the Langevin equation describing electronic excitations of the atoms during the transport through the foil. Calculations for the subshell populations of outgoing hydrogen atoms are found to be in good agreement with recent experimental data on an absolute scale and show that there exists a propensity for populating extreme Stark states.
Date: May 7, 1998
Creator: Reinhold, C.O.; Kuerpick, P.; Burgdoerfer, J.; Yoshida, S. & Gervais, B.
Object Type: Article
System: The UNT Digital Library
The Financial Outlook for Social Security and Medicare (open access)

The Financial Outlook for Social Security and Medicare

This report provides an overview of the financial outlook for social security and medicare programs.
Date: May 7, 1998
Creator: Koitz, David & Kollmann, Geoffrey
Object Type: Report
System: The UNT Digital Library
The Financial Outlook for Social Security and Medicare (open access)

The Financial Outlook for Social Security and Medicare

This report provides an overview of the financial outlook for Social Security and Medicare programs.
Date: May 7, 1998
Creator: Koitz, David Stuart & Kollmann, Geoffrey
Object Type: Report
System: The UNT Digital Library
Novel transport-vehicle design for moving optic modules in the National Ignition Facility (open access)

Novel transport-vehicle design for moving optic modules in the National Ignition Facility

The National Ignition Facility, currently under design and construction at Lawrence Livermore National Laboratory, will be the world`s largest laser when complete. The NIF will use about 8,000 large optics of 26 different types to focus up to 192 laser beams on a dime-size target. Given the constraints of the NIF operating environment, the tasks associated with optics transport and handling require a novel, versatile transport system. The system will consist of a computer system containing guidance, traffic management and order entry functions, and four or more automated laser-guided vehicles. This transport system will transport optics enclosures that are essentially portable clean rooms and will lift, align, and position them as needed to contact and engage mating points on the laser support structure.
Date: May 7, 1998
Creator: Grasz, E. & Tiszauer, D.
Object Type: Article
System: The UNT Digital Library
Periscope Pop-in Beam Monitor. (open access)

Periscope Pop-in Beam Monitor.

We have built monitors for use as beam diagnostics in the narrow gap of an undulator for an FEL experiment. They utilize an intercepting screen of doped YAG scintillating crystal to make light that is imaged through a periscope by conventional video equipment. The absolute position can be ascertained by comparing the electron beam position with the position of a He:Ne laser that is observed by this pop-in monitor. The optical properties of the periscope and the mechanical arrangement of the system mean that beam can be spatially determined to the resolution of the camera, in this case approximately 10 micrometers. Our experience with these monitors suggests improvements for successor designs, which we also describe.
Date: May 7, 1998
Creator: Johnson, E. D.
Object Type: Article
System: The UNT Digital Library