Search Results

open access

Analysis of the impact of energy crops on water quality. Final report

Description: This report consists of two separate papers. The first, ``The potential use of agricultural simulation models in predicting the fate of nitrogen and pesticides applied to switchgrass and poplars,`` describes three models (CREAMS, GLEAMS, and EPIC) for the evaluation of the relationships which determine water quality in the agroecosystem. Case studies are presented which demonstrate the utility of these models in evaluating the potential impact of alternative crop management practices. The secon… more
Date: April 16, 1993
Creator: Hatfield, J. L. & Gale, W. J.
open access

Analytical test results for archived core composite samples from tanks 241-TY-101 and 241-TY-103

Description: This report describes the analytical tests performed on archived core composite samples form a 1.085 sampling of the 241-TY-101 (101-TY) and 241-TY-103 (103-TY) single shell waste tanks. Both tanks are suspected of containing quantities of ferrocyanide compounds, as a result of process activities in the late 1950`s. Although limited quantities of the composite samples remained, attempts were made to obtain as much analytical information as possible, especially regarding the chemical and thermal… more
Date: July 16, 1993
Creator: Beck, M. A.
open access

Bench-scale testing of on-line control of column flotation using a novel analyzer. Second quarterly technical progress report, January 1, 1993--March 31, 1993

Description: This document contains the second quarterly technical progress report for PTI`s Bench-Scale Testing Project of a circuit integrating PTI`s KEN-FLOTE{trademark} Column Flotation Technology and PTI`s On-Line Quality Monitor and Control System. The twelve-month project involves installation and testing of a 200--300 lb/hr. bench-scale testing circuit at PETC`s Coal Preparation Process Research Facility (CPPRF) for two bituminous coals (Upper Freeport and Pittsburgh No. 8 Seam Raw Coals). The proje… more
Date: April 16, 1993
open access

Bioconversion of coal-derived synthesis gas to liquid fuels. Quarterly technical progress report, April 1, 1993--June 30, 1993

Description: The overall objective of the project is to develop two stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, B .methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: Development/isolation of superior strains for fermentation of syn gas… more
Date: July 16, 1993
Creator: Jain, M. K.; Worden, R. M. & Grethlein, H.
open access

Biotechnology, Indigenous Peoples, and Intellectual Property Rights

Description: This report examines intellectual property right in pharmaceuticals in a particular context, namely, medicinal products and processes derived from the biodiversity resources of areas inhabited by indigenous peoples. This report discusses the international law regarding intellectual property rights in traditional knowledge and the American laws regarding traditional knowledge.
Date: April 16, 1993
Creator: Axt, Josephie R.; Corn, M. Lynne; Lee, Margaret Mikyung & Ackerman, David M.
open access

Characterization of Multiphase Fluid Flow During Air-Sparged Hydrocyclone Flotation by X-Ray Ct. Thirteenth Quarterly Report: 14 August--13 November, 1993

Description: The research activities during this quarter of the DOE project, {open_quotes}Characterization of Multiphase Fluid Flow During Air-Sparged Hydrocyclone Flotation{close_quotes}, involved a detailed parametric study of the flotation response of the ASH, establishing an empirical correlation between flotation response and operating variables, and development of a phenomenological description of the observed responses. In these experiments with quartz particles, flotation response is essentially cha… more
Date: November 16, 1993
Creator: Miller, J. D.
open access

Chemical and mineralogical concerns for the use of man-made materials in the post-emplacement environment

Description: In a radioactive waste repository, materials will be introduced for a variety of reasons. Some materials such as metals, bonding agents, and concrete will serve as active parts of the designed engineered barrier system (EBS). Other materials will be introduced to serve a number of purposes that include any or all of the following: surveillance (thermocouples, gauges), construction and operation (drilling rigs, roadbeds, exhaust fumes, chemical toilets, concrete, grout, rebar), lubrication (petr… more
Date: January 16, 1993
Creator: Meike, A.
open access

A comparative application of the Repository Integration Program (RIP) to Total System Performance Assessment, 1991

Description: During Fiscal Year (FY) 1991 and FY 1992, Sandia National Laboratory and Battelle Pacific Northwest Laboratory were assigned the responsibility to generate initial Total System Performance Assessments (TSPAs) of the Yucca Mountain site. The analyses performed by these organizations (called TSPA-1991) are reported in Barnard et al(1992) and Eslinger et al. (1993). During this same time period, Golder Associates Inc. was assigned the task of generating a model capable of analyzing the total syste… more
Date: July 16, 1993
open access

Comparison of gap frame designs and materials for precision cathode strip chambers

Description: Precision cathode strip chamber perimeter designs that incorporate either continuous or discrete-post gap frames are analyzed. The effects of ten design and material combinations on gravity sag, mass, stress, and deflected shape are evaluated. Procedures are recommended for minimizing mass in the chamber perimeter region while retaining structural integrity and electrical design latitude.
Date: September 16, 1993
Creator: Horvath, J. A.; Pratuch, S. M. & Belser, F. C.
open access

CPAC moisture study: Phase 1 report on the study of optical spectra calibration for moisture

Description: This report discusses work done to investigate the feasibility of using optical spectroscopic methods, combined with multivariate Partial Least Squares (PLS) calibration modeling, to quantitatively predict the moisture content of the crust material in Hanford`s waste tank materials. Experiments were conducted with BY-104 simulant material for the 400--1100 nm (VIS), 1100--2500 (NIR), and 400-4000 cm{sup {minus}1}(IR) optical regions. The test data indicated that the NIR optical region, with a s… more
Date: December 16, 1993
Creator: Veltkamp, D.
open access

Cycle life testing of lithium-ion batteries for small satellite LEO space missions

Description: In 1990, Sony corporation announced their intention to manufacture a rechargeable lithium ion battery, based on the intercalation of lithium ions into a carbonaceous anode. The cells were first introduced for portable telephone use in June, 1991. (1) A 3.6V average cell voltage (4.1-2.75V range); (2) Excellent cycle life (1200 @ 100% DOD); (3) Good capacity retention (70% after 6 months); (4) Wide temperature range performance ({minus}20 to +60{degrees}C); (5) Excellent Discharge rate (82% capa… more
Date: August 16, 1993
Creator: Mayer, S. T.; Feikert, J. H. & Kaschmitter, J. L.
open access

Detailed design of the 2MW Demonstration Plant. Topical report, Task 2

Description: This document provides a summary of the design of the 2MW carbonate fuel cell power plant which will be built and tested under DOE cooperative agreement DE-FC2l-92MC29237. The report is divided into sections which describe the process and stack module design, and Appendices which provide additional design detail. Section 2.0 provides an overview of the program, including the project objectives, site location, and schedule. A description of the overall process is presented in Section 3.0. The de… more
Date: September 16, 1993
open access

Detection of ``single-leg separated`` heart valves using statistical pattern recognition with the nearest neighbor classifier

Description: The goal of this work was to detect ``single-leg separated`` Bjoerk-Shiley Convexo-Concave heart valves which had been implanted in sheep. A ``single-leg separated`` heart valve contains a fracture in the outlet strut resulting in an increased risk of mechanical failure. The approach presented in this report detects such fractures by applying statistical pattern recognition with the nearest neighbor classifier to the acoustic signatures of the valve opening. This approach is discussed and resul… more
Date: July 16, 1993
Creator: Buhl, M. R.; Clark, G. A.; Candy, J. V. & Thomas, G. H.
open access

Development of a membrane-based process for the treatment of oily waste waters. [Quarterly] technical report, March 5--June 4, 1994

Description: The overall goal of this program is to develop a system based on reverse-osmosis (RO) membranes that can treat oily water economically. This system will be based on the use of thin-film-composite (TFC) membranes that consist of a selective coating placed on a solvent-resistant hollow-fiber support. For this program, we plan to develop solvent-resistant hollow-fiber supports and coat them with a ``loose RO`` coating. We developed the coating, which is designated TTM, in previous work for the tre… more
Date: September 16, 1993
Creator: McCray, S. B.
open access

Effect of pretreating of host oil on coprocessing. Quarterly progress report, April 1, 1993--June 30, 1993

Description: The principal objective of this research is to gain information on the role that host petroleum-derived oils (1000 F+), as well as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oil will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, and isomerization. The pretreated oils will then be characterized by elemental analysis, catalytic de… more
Date: August 16, 1993
Creator: Wender, I. & Tierney, J. W.
open access

Electrical analysis of wideband and distributed windows using time-dependent field codes

Description: Windows, which provide the barrier to maintain the vacuum envelope in a microwave tube, are critical components in high-average-power microwave sources, especially at millimeter wavelengths. As RF power levels approach the 100`s of kWs to 1 MW range (CW), the window assembly experiences severe thermal and mechanical stresses. Depending on the source, the bandwidth of the window may be less than 1 GHz for gyrotron oscillators or up to {approximately}20 GHz for the FOM Institute`s fast-tunable, f… more
Date: September 16, 1993
Creator: Shang, C. C.; Caplan, M.; Nickel, H. U. & Thumm, M.
open access

Final examination of IDMS corrosion coupons

Description: The metallurgical examination of corrosion coupons removed from the Integrated DWPF Melter System (IDMS) was performed as part of the IDMS Materials Evaluation Program. The findings and conclusions of the evaluation program are presented in this report.
Date: September 16, 1993
Creator: Imrich, K. J. & Jenkins, C. F.
open access

Flue gas conditioning for improved particle collection in electrostatic precipitators

Description: Several tasks have been completed in a program to evaluate additives to improve fine particle collection in electrostatic precipitators. Screening tests and laboratory evaluations of additives are summarized in this report. Over 20 additives were evaluated; four were found to improve flyash precipitation rates. The Insitec particle analyzer was also evaluated; test results show that the analyzer will provide accurate sizing and counting information for particles in the size range of [le] 10 [mu… more
Date: April 16, 1993
Creator: Durham, M. D.
open access

Flue Gas Conditioning for Improved Particle Collection in Electrostatic Precipitators. First Topical Report, Results of Laboratory Screening of Additives

Description: Several tasks have been completed in a program to evaluate additives to improve fine particle collection in electrostatic precipitators. Screening tests and laboratory evaluations of additives are summarized in this report. Over 20 additives were evaluated; four were found to improve flyash precipitation rates. The Insitec particle analyzer was also evaluated; test results show that the analyzer will provide accurate sizing and counting information for particles in the size range of {le} 10 {mu… more
Date: April 16, 1993
Creator: Durham, Michael D.
open access

Functions and requirements for subsurface barriers used in support of single-shell tank waste retrieval

Description: The mission of the Tank Waste Remediation System (TWRS) Program is to store, treat, and immobilize highly radioactive Hanford waste in an environmentally sound, safe, and cost-effective manner. The scope of the TWRS Program includes project and program activities for receiving, storing, maintaining, treating, and disposing onsite, or packaging for offsite disposal, all Hanford tank waste. Hanford tank waste includes the contents of 149 single-shell tanks (SSTs) and 28 double-shell tanks (DSTs),… more
Date: November 16, 1993
Creator: Lowe, S. S.
open access

Gamma & beta-gamma storm water monitor operability

Description: High Level Waste (HLW) facilities have nine storm water monitors that monitor storm water run off from different process areas for Cesium 137, a Gamma emitter. F - Area has three monitors: 907-2F, 907-3F and 907-4F while H - Area has six monitors: 907-2H, 907-3H, 907-4H, 907-5H, 907-6H and 907-7H (See attachments {number_sign}1, {number_sign}2 and {number_sign}3 for location). In addition to monitoring for Cesium, 907-6H and 907-7H monitor for Strontium-90, a Beta emitter. Each monitor is assoc… more
Date: September 16, 1993
Creator: Tshiskiku, E. M.
open access

GNU debugger internal architecture

Description: This document describes the internal and architecture and implementation of the GNU debugger, gdb. Topics include inferior process management, command execution, symbol table management and remote debugging. Call graphs for specific functions are supplied. This document is not a complete description but offers a developer an overview which is the place to start before modification.
Date: December 16, 1993
Creator: Miller, P.; Nessett, D. & Pizzi, R.
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