Challenges in quality of environmental measurements for compliance (open access)

Challenges in quality of environmental measurements for compliance

Quality systems development in environmental measurements for compliance with regulatory requirements for nuclear and other contaminants in the environment is one of the major challenges in current technology disciplines. Efforts to fulfill the mission and objectives of funded projects will not be successful on a timely and cost-effective schedule without adequate plans and credible action for the protection of workers, facilities, and the public in environment, safety, and health aspects. This can be accomplished through quality assurance planning and implementation of an effective, controlled environmental measurements program.
Date: April 7, 1994
Creator: White, M. G.
Object Type: Article
System: The UNT Digital Library
Environmental and safety obligations of the Chemical Weapons Convention (open access)

Environmental and safety obligations of the Chemical Weapons Convention

Among its many unique and precedent-setting provisions, the Chemical Weapons Convention (CWC) includes important requirements for States Parties to protect the public safety and the environment in the course of carrying out the treaty. These obligations will apply to the destruction of chemical weapons, of former chemical weapons production facilities, and to other activities under the Convention such as the verification scheme. This morning, I will briefly discuss the Convention`s safety and environmental obligations, concentrating on their effects in this country as the United States chemical weapons stockpile is destroyed.
Date: April 7, 1994
Creator: Tanzman, E. A.
Object Type: Article
System: The UNT Digital Library
Model documentation: Electricity Market Module, Electricity Capacity Planning submodule (open access)

Model documentation: Electricity Market Module, Electricity Capacity Planning submodule

The National Energy Modeling System (NEMS) is a computer modeling system developed by the Energy Information Administration (EIA). The NEMS produces integrated forecasts for energy markets in the United States by achieving a general equilibrium solution for energy supply and demand. Currently, for each year during the period from 1990 through 2010, the NEMS describes energy supply, conversion, consumption, and pricing. The Electricity Market Module (EMM) is the electricity supply component of the National Energy Modeling System (NEMS). The supply of electricity is a conversion activity since electricity is produced from other energy sources (e.g., fossil, nuclear, and renewable). The EMM represents the generation, transmission, and pricing of electricity. The EMM consists of four main submodules: Electricity Capacity Planning (ECP), Electricity Fuel Dispatching (EFD), Electricity Finance and Pricing (EFP), and Load and Demand-Side Management (LDSM). The ECP evaluates changes in the mix of generating capacity that are necessary to meet future demands for electricity and comply with environmental regulations. The EFD represents dispatching (i.e., operating) decisions and determines how to allocate available capacity to meet the current demand for electricity. Using investment expenditures from the ECP and operating costs from the EFD, the EFP calculates the price of electricity, accounting …
Date: April 7, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Model documentation: Electricity market module, electricity finance and pricing submodule (open access)

Model documentation: Electricity market module, electricity finance and pricing submodule

The purpose of this report is to define the objectives of the model, describe its basic approach, and provide detail on how it works. The EFP is a regulatory accounting model that projects electricity prices. The model first solves for revenue requirements by building up a rate base, calculating a return on rate base, and adding the allowed expenses. Average revenues (prices) are calculated based on assumptions regarding regulator lag and customer cost allocation methods. The model then solves for the internal cash flow and analyzes the need for external financing to meet necessary capital expenditures. Finally, the EFP builds up the financial statements. The EFP is used in conjunction with the National Energy Modeling System (NEMS). Inputs to the EFP include the forecast generating capacity expansion plans, operating costs, regulator environment, and financial data. The outputs include forecasts of income statements, balance sheets, revenue requirements, and electricity prices.
Date: April 7, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Model documentation: Electricity Market Module, Load and Demand-Side Management submodule. Volume 2, Model code listing (open access)

Model documentation: Electricity Market Module, Load and Demand-Side Management submodule. Volume 2, Model code listing

Volume II of the documentation contains the actual source code of the LDSM submodule, and the cross reference table of its variables. The code is divided into two parts. The first part contains the main part of the source code. The second part lists the INCLUDE files referenced inside the main part of the code.
Date: April 7, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Neutron interrogation to identify chemical elements with an ion-tube neutron source (INS) (open access)

Neutron interrogation to identify chemical elements with an ion-tube neutron source (INS)

A non-destructive analysis technique using a portable, electric ion-tube neutron source (INS) and gamma ray detector has been used to identify the key constituent elements in a number of sealed munitions, and from the elemental makeup, infer the types of agent within each. The high energy (14 MeV) and pulsed character of the neutron flux from an INS provide a method of measuring, quantitatively, the oxygen, carbon, and fluorine content of materials in closed containers, as well as the other constituents that can be measured with low-energy neutron probes. The broad range of elements that can be quantitatively measured with INS-based instruments provides a capability of verifying common munition fills; it provides the greatest specificity of any portable neutron-based technique for determining the full matrix of chemical elements in completely unrestricted sample scenarios. The specific capability of quantifying the carbon and oxygen content of materials should lead to a fast screening technique which, can discriminate very quickly between high-explosive and chemical agent-filled containers.
Date: April 7, 1994
Creator: Alvarez, R. A.; Dougan, A. D.; Rowland, M. R. & Wang, T. F.
Object Type: Article
System: The UNT Digital Library
Numerical simulations of creep in ductile-phase toughened intermetallic matrix composites (open access)

Numerical simulations of creep in ductile-phase toughened intermetallic matrix composites

Analytical and finite element method (FEM) simulations of creep in idealized ductile-phase toughened intermetallic composites are described. For these strong-matrix materials, the two types of analyses predict similar time-independent composite creep rates if each phase individually exhibits only steady-state creep. The composite creep rate becomes increasingly higher than that of the monolithic intermetallic as the stress exponent of the intermetallic and the volume fraction and creep rate of the ductile phase increase. FEM analysis shows that the shape of the ductile phase does not affect the creep rate but may affect the internal stress and strain distributions, and thus damage accumulation rates. If primary creep occurs in one or both of the individual phases, the composite also exhibits primary creep. In this case, there can be significant deviations in the creep curves computed by the analytical and FEM models. The model predictions are compared with data for the Nb5Si3/Nb system.
Date: April 7, 1994
Creator: Henshall, G. A. & Strum, M. J.
Object Type: Article
System: The UNT Digital Library
Selected Interior and Related Agencies Budget Requests for I T 1995 (open access)

Selected Interior and Related Agencies Budget Requests for I T 1995

This report reviews the FY 1995 budget request of the Department of the Interior with brief analyses of the budget requests of selected agencies within the department that principally are involved in natural resources programs or activities. This report also provides an overview of the mission of the Department of the Interior, its organization, and its major budget initiatives for FY 1995 .
Date: April 7, 1994
Creator: Greenwood, Alfred R.
Object Type: Report
System: The UNT Digital Library
Special Elections and Membership Changes in the 103d Congress, First Session (open access)

Special Elections and Membership Changes in the 103d Congress, First Session

This report provides information on membership changes in the first session of the 103d Congress through special elections for vacancies in the House of Representatives and appointments and special elections for vacancies in the Senate .
Date: April 7, 1994
Creator: Neale, Thomas H.
Object Type: Report
System: The UNT Digital Library
United States Trade and Trade Balance with Japan 1958-1993: A Brief Historical Overview (open access)

United States Trade and Trade Balance with Japan 1958-1993: A Brief Historical Overview

The purpose of this brief report is to appraise Congress of some relevant perspectives concerning the experience of U.S.-Japan merchandise trade since 1968. For the first seven years of the period under review, more American goods were sold to Japan than imported from that nascent major Asian economy, which has been,however, trailing Canada by far as our second top trading partner. Somewhat normally acceptable trade deficits were registered between 1966 and 1979, after which the growth of trade imbalances became unprecedented.
Date: April 7, 1994
Creator: Scuka, Dario
Object Type: Report
System: The UNT Digital Library
Winter Fuels Report: Week Ending April 1, 1994 (open access)

Winter Fuels Report: Week Ending April 1, 1994

The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks on a US level and for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks on a US level and for PADD`s I, II, and III; natural gas supply and disposition and underground storage for the US and consumption for all PADD`S; as well as selected National average prices. Residential and wholesale pricing data for heating oil and propane for those States participating in the joint Energy Information Administration (EIA)/State Heating Oil and Propane Program; crude oil and petroleum price comparisons for the US and selected cities; and a 6--10 Day, 30-Day, and 90-Day outlook for temperature and precipitation and US total heating degree-days by city.
Date: April 7, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library