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Terrestrial Ecosystem Responses to Global Change: A Research Strategy

Description: Uncertainty about the magnitude of global change effects on terrestrial ecosystems and consequent feedbacks to the atmosphere impedes sound policy planning at regional, national, and global scales. A strategy to reduce these uncertainties must include a substantial increase in funding for large-scale ecosystem experiments and a careful prioritization of research efforts. Prioritization criteria should be based on the magnitude of potential changes in environmental properties of concern to socie… more
Date: September 23, 1998
Creator: Ecosystems Working Group,
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

WASTE PACKAGE TRANSPORTER DESIGN

Description: The purpose of this Design Analysis is to develop preliminary design of the waste package transporter used for waste package (WP) transport and related functions in the subsurface repository. This analysis refines the conceptual design that was started in Phase I of the Viability Assessment. This analysis supports the development of a reliable emplacement concept and a retrieval concept for license application design. The scope of this analysis includes the following activities: (1) Assess feat… more
Date: September 23, 1998
Creator: Weddle, D.C.; Novotny, R. & Cron, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Real Time Air Monitoring Using Open-Path FTIR

Description: Over the last several years there has been renewed interest in the use of open-path Fourier Transform Infrared (FTIR) spectroscopy for a variety of air monitoring applications. The intersect has been motivated by the need for new technology to address the regulator requirements of the Clean Air Act Amendment of 1990. Interest has been expressed in exploring the applications of this technology to locate fugitive-source emissions and measuring total emissions from industrial facilities.
Date: September 23, 1998
Creator: Gamiles, D.S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-Level software requirements specification for the TWRS controlled baseline database system

Description: This Software Requirements Specification (SRS) is an as-built document that presents the Tank Waste Remediation System (TWRS) Controlled Baseline Database (TCBD) in its current state. It was originally known as the Performance Measurement Control System (PMCS). Conversion to the new system name has not occurred within the current production system. Therefore, for simplicity, all references to TCBD are equivalent to PMCS references. This SRS will reference the PMCS designator from this point for… more
Date: September 23, 1998
Creator: Spencer, S. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

System configuration management plan for the TWRS controlled baseline database system [TCBD]

Description: LHMC, TWRS Business Management Organization (BMO) is designated as system owner, operator, and maintenance authority. The TWAS BMO identified the need for the TCBD. The TWRS BMO users have established all requirements for the database and are responsible for maintaining database integrity and control (after the interface data has been received). Initial interface data control and integrity is maintained through functional and administrative processes and is the responsibility of the database ow… more
Date: September 23, 1998
Creator: Spencer, S. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

System maintenance verification and validation plan for the TWRS controlled baseline database system

Description: TWRS Controlled Baseline Database, formally known as the Performance Measurement Control System, is used to track and monitor TWRS project management baseline information. This document contains the verification and validation approach for system documentation changes within the database system.
Date: September 23, 1998
Creator: Spencer, S. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

STREAM2 for Aqueous Release Emergency Response

Description: This report documents the STREAM2 code and its input models developed for the WIND System. STREAM2 is a modification of the STREAM code, which is the transport and diffusion module of the WIND System aqueous emergency response program. STREAM predicts downstream pollutant concentrations for releases from the Savannah River Site to the Savannah River. The STREAM calculation module uses an algebraic equation to approximate the solution of the differential one-dimensional advective transport equat… more
Date: September 23, 1998
Creator: Chen, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

System maintenance test plan for the TWRS controlled baseline database system

Description: TWRS [Tank Waste Remediation System] Controlled Baseline Database, formally known as the Performance Measurement Control System, is used to track and monitor TWRS project management baseline information. This document contains the maintenance testing approach for software testing of the TCBD system once SCR/PRs are implemented.
Date: September 23, 1998
Creator: Spencer, S. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scenario development for the Waste Isolation Pilot Plant compliance certification application

Description: Demonstrating compliance with the applicable regulations for the Waste Isolation Pilot Plant (WIPP) requires an assessment of the long-term performance of the disposal system. Scenario development is one starting point of this assessment, and generates inquiry about the present state and future evolution of the disposal system. Scenario development consists of four tasks: (1) identifying and classifying features, events and processes (FEPs), (2) screening FEPs according to well-defined criteria… more
Date: September 23, 1998
Creator: GALSON,D.A.; SWIFT,PETER N.; ANDERSON,D. RICHARD & BENNETT,D.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

What is "Normative" at Cooling Water Intakes? Defining Normalcy Before Judging Adverse

Description: Judgments of adverse environmental impact from cooling water intake structures need to be preceded by an appreciation of what is normal. In its repo~ Return to the River, the Independent Scientd5c Group (now called the Independent Scientfilc Advisory Board) --the scientific peer review arm of the Northwest Power Planning Council-- advanced the notion of a "normative river ecosystem" as a new conceptual foundation for salrnonid recovery in the Columbia River basin. With this perspective, the sum… more
Date: September 23, 1998
Creator: Coutant, C.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Natural biodegradation of organic contaminants in groundwater

Description: There has recently been a growing awareness that natural processes are degrading contaminants of concern, and that the contribution these natural processes make to achieving cleanup goals needs to be formally considered during site-specific cleanup. Historical case data from a large number of releases has been used to evaluate the expectation for natural attenuation to contribute to the cleanup of petroleum hydrocarbons and chlorinated solvents. The use of historical case data has several advan… more
Date: September 23, 1998
Creator: McNab, W. W. & Rice, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High intensity positron program at LLNL

Description: Lawrence Livermore National Laboratory (LLNL) is the home of the world's highest current beam of keV positrons. The potential for establishing a national center for materials analysis using positron annihilation techniques around this capability is being actively pursued. The high LLNL beam current will enable investigations in several new areas. We are developing a positron microprobe that will produce a pulsed, focused positron beam for 3-dimensional scans of defect size and concentration wit… more
Date: September 23, 1998
Creator: Asoka-Kumar, P.; Howell, R.H. & Stoeffl, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Bulk defect analysis with a high-energy positron beam

Description: A program using a positron beam to probe defects in bulk materials has been developed at Lawrence Livermore National Laboratory. Positron annihilation lifetime spectroscopy (PALS) provides non-destructive analysis of average defect size and concentration. A 3 MeV positron beam is supplied by Sodium-22 at the terminal of a Pelletron accelerator. The high-energy beam allows large (greater than or equal to 1 cm<sup>2</sup>) engineering samples to be measured in air or even sealed in an independent… more
Date: September 23, 1998
Creator: Hartley, J. H.; Howell, R. H. & Sterne, P. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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