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Meteorological database for the United States

Description: A meteorological database has been developed to aid in the prediction of indoor radon concentrations in the United States. The database contains predicted typical monthly meteorological statistics at the county level derived from hourly meteorological data from 208 (234 for precipitation) geographically distinct monitoring stations. Interpolation and extrapolation techniques were used to predict statistics for counties not containing a meteorological monitoring site. The LBNL database includes … more
Date: April 1, 1996
Creator: Apte, M.G.; Nero, A.V. & Revzan, K.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Finite element model update via Bayesian estimation and minimization of dynamic residuals

Description: An algorithm is presented for updating finite element models based upon a minimization of dynamic residuals. The dynamic residual of interest is the force unbalance in the homogeneous form of the equations of motion arising from errors in the model`s mass and stiffness when evaluated with the identified modal parameters. The present algorithm is a modification and extension of a previously-developed Sensitivity-Based Element-By-Element (SB-EBE) method for damage detection and finite element mod… more
Date: December 31, 1996
Creator: Alvin, Kenneth F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Review of statistical analysis of trapped gas

Description: A review was conducted of trapped gas estimates in Hanford waste tanks. Tank waste levels were found to correlate with barometric pressure changes giving the possibility to infer amounts of trapped gas. Previous models of the tank waste level were extended to include other phenomena such as evaporation in a more complete description of tank level changes.
Date: March 19, 1996
Creator: Schmittroth, F.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

US Department of Energy Office of Inspector General semiannual report to Congress, April 1--September 30, 1996

Description: The report summarizes significant audit, inspection, and investigative accomplishments for the reporting period which facilitated DOE management efforts to improve management controls and ensure efficient and effective operation of its programs. During this period, the Office of IG issued 52 audit and 7 inspection reports. For reports issued during the period, the Office made audit recommendations that, when implemented by management, could result in $554 million being put to better use. Manage… more
Date: October 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reservoir continuous process improvement six sigma methodology implementation

Description: The six sigma methodology adopted by AlliedSignal Inc. for implementing continuous improvement activity was applied to a new manufacturing assignment for Federal Manufacturing & Technologies (FM&T). The responsibility for reservoir development/production was transferred from Rocky Flats to FM&T. Pressure vessel fabrication was new to this facility. No fabrication history for this type of product existed in-house. Statistical tools such as process mapping, failure mode and effects analysis, and … more
Date: December 1, 1996
Creator: Wannamaker, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Estimation of lower-bound K{sub Jc} on pressure vessel steels from invalid data

Description: Statistical methods are currently being introduced into the transition temperature characterization of ferritic steels. Objective is to replace imprecise correlations between empirical impact test methods and universal K{sub Ic} or K{sub Ia} lower-bound curves with direct use of material-specific fracture mechanics data. This paper introduces a computational procedure that couples order statistics, weakest-link statistical theory, and a constraint model to arrive at estimates of lower-bound K{s… more
Date: October 1, 1996
Creator: McCable, D. E. & Merkle, J. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Increased oil production and reserves from improved completion techniques in the Bluebell Field, Uinta Basin, Utah. Quarterly technical progress report, April 1, 1996--June 30, 1996, 11th Quarter of the project

Description: The objective of this project is to increase oil production and reserves in the Uinta Basin by demonstrating improved completion techniques. Low productivity of Uinta Basin wells is caused by gross production intervals of several thousand feet that contain perforated thief zones, water-bearing zones, and unperforated oil-bearing intervals. Geologic and engineering characterization and computer simulation of the Green River and Wasatch formations in the Bluebell field will determine reservoir he… more
Date: July 30, 1996
Creator: Allison, E. & Morgan, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistical and cost-benefit enhancements to the DQO process for characterization decisions

Description: The costs of characterization can comprise a sizeable fraction of a remediation program budget. The DQO Process has been instituted at DOE to ensure that the investment in characterization adds net value to each remediation project. Thoughtful characterization can be very important to minimizing the total cost of a remediation. Strategic information gained by characterization can reduce the remediation costs by reducing the unproductive investment in unnecessary remediation of portions of a sit… more
Date: September 12, 1996
Creator: Goodman, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Systematic error revisited

Description: The American National Standards Institute (ANSI) defines systematic error as An error which remains constant over replicative measurements. It would seem from the ANSI definition that a systematic error is not really an error at all; it is merely a failure to calibrate the measurement system properly because if error is constant why not simply correct for it? Yet systematic errors undoubtedly exist, and they differ in some fundamental way from the kind of errors we call random. Early papers by … more
Date: August 5, 1996
Creator: Glosup, J. G. & Axelrod, M. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Bayesian analysis of the solar neutrino problem

Description: We illustrate how the Bayesian approach can be used to provide a simple but powerful way to analyze data from solar neutrino experiments. The data are analyzed assuming that the neutrinos are unaltered during their passage from the Sun to the Earth. We derive quantitative and easily understood information pertaining to the solar neutrino problem.
Date: September 1, 1996
Creator: Bhat, C. M.; Bhat, P. C.; Paterno, M. & Prosper, H. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Statistical methods of combining information: Applications to sensor data fusion

Description: This paper reviews some statistical approaches to combining information from multiple sources. Promising new approaches will be described, and potential applications to combining not-so-different data sources such as sensor data will be discussed. Experiences with one real data set are described.
Date: December 31, 1996
Creator: Burr, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

International petroleum statistics report

Description: This report presents data on international oil production, demand, imports, and stocks. World oil production and OECD demand data are for the years 1970 through 1995; stocks from 1973 through 1995, and trade from 1985 through 1995.
Date: December 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A comparative study of minimum norm inverse methods for MEG imaging

Description: The majority of MEG imaging techniques currently in use fall into the general class of (weighted) minimum norm methods. The minimization of a norm is used as the basis for choosing one from a generally infinite set of solutions that provide an equally good fit to the data. This ambiguity in the solution arises from the inherent non- uniqueness of the continuous inverse problem and is compounded by the imbalance between the relatively small number of measurements and the large number of source v… more
Date: July 1, 1996
Creator: Leahy, R. M.; Mosher, J. C. & Phillips, J. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiological decontamination, survey, and statistical release method for vehicles

Description: Earth-moving vehicles (e.g., dump trucks, belly dumps) commonly haul radiologically contaminated materials from a site being remediated to a disposal site. Traditionally, each vehicle must be surveyed before being released. The logistical difficulties of implementing the traditional approach on a large scale demand that an alternative be devised. A statistical method for assessing product quality from a continuous process was adapted to the vehicle decontamination process. This method produced … more
Date: June 1, 1996
Creator: Goodwill, M. E.; Lively, J. W. & Morris, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calorimetry exchange program. Quarterly data report, 2nd quarter 1992

Description: The goals of the Calorimetry Sample Exchange Program are: (1) Discuss measurement differences, (2) Review and improve analytical measurements and methods, (3) Discuss new measurement capabilities, (4) Provide data to DOE on measurement capabilities to evaluate shipper-receiver differences, (5) Provide characterized or standard materials as necessary for exchange participants, (6) Provide a measurement control program for plutonium analysis. A sample of PuO{sub 2} powder is available at each par… more
Date: July 1, 1996
Creator: Barnett, T.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Efficient maximum entropy algorithms for electronic structure

Description: Two Chebyshev recursion methods are presented for calculations with very large sparse Hamiltonians, the kernel polynomial method (KPM) and the maximum entropy method (MEM). If limited statistical accuracy and energy resolution are acceptable, they provide linear scaling methods for the calculation of physical properties involving large numbers of eigenstates such as densities of states, spectral functions, thermodynamics, total energies for Monte Carlo simulations and forces for molecular dynam… more
Date: April 1, 1996
Creator: Silver, R. N.; Roeder, H.; Voter, A. F. & Kress, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Capacity planning in a transitional economy: What issues? Which models?

Description: This paper is devoted to an exploration of the important issues facing the Russian power generation system and its evolution in the foreseeable future and the kinds of modeling approaches that capture those issues. These issues include, for example, (1) trade-offs between investments in upgrading and refurbishment of existing thermal (fossil-fired) capacity and safety enhancements in existing nuclear capacity versus investment in new capacity, (2) trade-offs between investment in completing unf… more
Date: March 1, 1996
Creator: Mubayi, V.; Leigh, R. W. & Bright, R. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Methods for estimation of covariance matrices and covariance components for the Hanford Waste Vitrification Plant Process

Description: The high-level waste (HLW) vitrification plant at the Hanford Site was being designed to transuranic and high-level radioactive waste in borosilicate class. Each batch of plant feed material must meet certain requirements related to plant performance, and the resulting class must meet requirements imposed by the Waste Acceptance Product Specifications. Properties of a process batch and the resultlng glass are largely determined by the composition of the feed material. Empirical models are being… more
Date: March 1996
Creator: Bryan, M. F.; Piepel, G. F. & Simpson, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford Waste Tank Grouping Study

Description: This letter report discusses the progress and accomplishments of the Tank Grouping Study in FY96. Forty-one single-shell tanks (SSTs) were included in the FY95. In FY96, technical enhancements were also made to data transformations and tank grouping methods. The first focus of the FY96 effort was a general tank grouping study in which the 41 SSTs were grouped into classes with similar waste properties. The second FY96 focus was a demonstration of how multivariate statistical methods can be used… more
Date: September 30, 1996
Creator: Remund, K. M. & Simpson, B. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistical evaluation of CTBT regional seismic monitoring

Description: A global seismic monitoring system under a Comprehensive Test Ban Treaty (CTBT) is judged by its capability to detect, locate, and identify suspicious seismic events. Performance measures are those statistical objects that describe these capabilities. Performance criteria are the thresholds derived from the overall monitoring system goals, against which the evaluated performance measures are compared. This report proposes statistical objects for performance measurement of detection and location… more
Date: September 1, 1996
Creator: Anderson, K.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistical design of mass spectrometry calibration procedures

Description: The main objective of this task was to agree on calibration procedures to estimate the system parameters (i.e., dead-time correction, ion-counting conversion efficiency, and detector efficiency factors) for SAL`s new Finnigan MAT-262 mass spectrometer. SAL will use this mass spectrometer in a clean-laboratory which was opened in December 1995 to measure uranium and plutonium isotopes on environmental samples. The Finnigan MAT-262 mass spectrometer has a multi-detector system with seven Faraday … more
Date: November 1, 1996
Creator: Bayne, C.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heuristic estimates of weighted binomial statistics for use in detecting rare point source transients

Description: The ALEXIS (Array of Low Energy X-ray Imaging Sensors) satellite scans nearly half the sky every fifty seconds, and downlinks time-tagged photon data twice a day. The standard science quicklook processing produces over a dozen sky maps at each downlink, and these maps are automatically searched for potential transient point sources. We are interested only in {ital highly significant} point source detections, and based on earlier Monte-Carlo studies, only consider {ital p} < 10{sup -7}, which is… more
Date: December 1996
Creator: Theiler, J. & Bloch, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Process chemistry {ampersand} statistics quality assurance plan

Description: This document provides quality assurance guidelines and quality control requirements for Process Chemistry and Statistics. This document is designed on the basis of Hanford Analytical Services Quality Assurance Plan (HASQAP) technical guidelines and is used for governing process chemistry activities.
Date: August 1, 1996
Creator: Meznarich, H.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DRIFT SCALE MODELING: STUDY OF UNSATURATED FLOW INTO A DRIFT USING A STOCHASTIC CONTINUUM MODEL

Description: Unsaturated flow in heterogeneous fractured porous rock was simulated using a stochastic continuum model (SCM). In this model, both the more conductive fractures and the less permeable matrix are generated within the framework of a single continuum stochastic approach, based on non-parametric indicator statistics. High-permeable fracture zones are distinguished from low-permeable matrix zones in that they have assigned a long range correlation structure in prescribed directions. The SCM was app… more
Date: September 1, 1996
Creator: Birkholzer, J. T.; Tsang, C. F.; Tsang, Y. W. & Wang, J. S. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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