Investigations into the [Early] Life History of Spring Chinook Salmon in the Grande Ronde River Basin : Fish Research Project, Oregon : Annual Report 1994 : Project Period 1 June 1993 to 31 May 1994. (open access)

Investigations into the [Early] Life History of Spring Chinook Salmon in the Grande Ronde River Basin : Fish Research Project, Oregon : Annual Report 1994 : Project Period 1 June 1993 to 31 May 1994.

This study was designed to describe aspects of the life history strategies of spring chinook salmon in the Grande Ronde basin. During the past year we focused on rearing and migration patterns of juveniles and surveys of spawning adults. The specific objectives for the early life history portion of the study were: Objective 1, document the annual in-basin migration patterns for spring chinook salmon juveniles in the upper Grande Ronde River, including the abundance of migrants, migration timing and duration; Objective 2, estimate and compare smolt survival indices to mainstem Columbia and Snake River dams for fall and spring migrating spring chinook salmon; Objective 3 initiate study of the winter habitat utilized by spring chinook salmon in the Grande Ronde River basin. The specific objectives for the spawning ground surveys were: Objective 4, conduct extensive and supplemental spring chinook salmon spawning ground surveys in spawning streams in the Grande Ronde and Imnaha basin, Objective 5; determine how adequately historic index area surveys index spawner abundance by comparing index counts to extensive and supplemental redd counts; Objective 6, determine what changes in index areas and timing of index surveys would improve the accuracy of index surveys; Objective 7, determine the relationship …
Date: April 1, 1996
Creator: Keefe, MaryLouise
Object Type: Report
System: The UNT Digital Library
Meteorological database for the United States (open access)

Meteorological database for the United States

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 statistics for meteorological variables including dry-bulb temperature, dew-point temperature, barometric pressure, wind speed, wind direction, hours of precipitation, precipitation, and derived infiltration degree-days. The database consists of individual files of derived statistics for each weather variable and is potentially useful for indoor radon modeling as well as for other purposes. Each file contains data values for all 12 months and an aggregation of the 12 months up to a yearly statistic for all county centroids. A test was conducted to assess the quality of interpolated values. Examples showing the use of the database for mapping infiltration degree-days and an application of the database to a statistical correlation analysis attempting to find meteorological factors influencing indoor radon levels in the United States is discussed.
Date: April 1, 1996
Creator: Apte, M.G.; Nero, A.V. & Revzan, K.L.
Object Type: Article
System: The UNT Digital Library
Waste minimization plan construction and operation of the replacement cross-site transfer system, project W-058 (open access)

Waste minimization plan construction and operation of the replacement cross-site transfer system, project W-058

This report addresses the research and development of a waste minimization plan for the construction and operation of Project W-058, Replacement of the Cross-Site Transfer System, on the Hanford Site. The plan is based on Washington Administrative Code (WAC) 173-307, Plans. The waste minimization plan identifies areas where pollution prevention/waste minimization principles can be incorporated into the construction and operation of the cross-site transfer system.
Date: April 1, 1996
Creator: Boucher, T.D.
Object Type: Report
System: The UNT Digital Library
Standard process for the roles and responsibilities for facility reuse of DOE Oak Ridge Reservation Facilities (open access)

Standard process for the roles and responsibilities for facility reuse of DOE Oak Ridge Reservation Facilities

The purpose of this report is to provide an understanding of the standard process for the lease or sale of facilities, equipment, and real property for the Oak Ridge Reservation (ORR). The objective of this process is to facilitate the reindustrialization of the ORR for the Department of Energy (DOE). The roles and responsibilities in this standard, as defined in the attached narrative and flow diagrams, were agreed upon among various representatives from the DOE-Oak Ridge Operations Office (DOE-ORO), Lockheed Martin Energy Systems, Inc. (LMES), and the Community Reuse Organization of East Tennessee (CROET). Reindustrialization for the DOE encompasses several areas which include: facilities reuse, materials and equipment recycling, and worker transition activities. The DOE-ORO`s vision for the ORR is to have completed the reindustrialization activities for the K-25 Site by the year 2010. Several steps have already been taken to aggressively pursue this vision, such as determining the most efficient and cost-effective ways to expedite the facilities reuse process. This report provides the time-phased, step-by-step, process for the lease or sale of facilities, equipment, land, and suggestions on streamlining the required regulatory processes.
Date: April 1, 1996
Creator: Loebl, A. S.; Trost, D. G.; Pastel, J. A.; Payne, S. G. & Fleenor, R. M.
Object Type: Report
System: The UNT Digital Library
Assessment of commercially available ion exchange materials for cesium removal from highly alkaline wastes (open access)

Assessment of commercially available ion exchange materials for cesium removal from highly alkaline wastes

Approximately 61 million gallons of nuclear waste generated in plutonium production, radionuclide removal campaigns, and research and development activities is stored on the Department of Energy`s Hanford Site, near Richland, Washington. Although the pretreatment process and disposal requirements are still being defined, most pretreatment scenarios include removal of cesium from the aqueous streams. In many cases, after cesium is removed, the dissolved salt cakes and supernates can be disposed of as LLW. Ion exchange has been a leading candidate for this separation. Ion exchange systems have the advantage of simplicity of equipment and operation and provide many theoretical stages in a small space. The organic ion exchange material Duolite{trademark} CS-100 has been selected as the baseline exchanger for conceptual design of the Initial Pretreatment Module (IPM). Use of CS-100 was chosen because it is considered a conservative, technologically feasible approach. During FY 96, final resin down-selection will occur for IPM Title 1 design. Alternate ion exchange materials for cesium exchange will be considered at that time. The purpose of this report is to conduct a search for commercially available ion exchange materials which could potentially replace CS-100. This report will provide where possible a comparison of these resin in their …
Date: April 1, 1996
Creator: Brooks, K. P.; Kim, A. Y. & Kurath, D. E.
Object Type: Report
System: The UNT Digital Library
Analysis of equilibrium data for cesium ion exchange of Hanford CC and NCAW supernatant liquid--Status report (open access)

Analysis of equilibrium data for cesium ion exchange of Hanford CC and NCAW supernatant liquid--Status report

This report contains the results of a partial analysis and correlation of a large amount of equilibrium data obtained for cesium ion exchange. Data from testing of organic resins, a phenolic- carboxylic acid resin, and a resorcinol-formaldehyde resin with NCAW and CC waste simulants were assessed. The isotherms that were considered for correlating the data include the Langmuir, the Freundlich, and a combination of the two. These correlations are being developed to provide equations that can be used with models for assessing column behavior and provide correlations that will allow prediction of the equilibrium performance of the two resins with wastes of different compositions.
Date: April 1, 1996
Creator: Kurath, D. E.; Bray, L. A.; Brooks, K. P.; Carlson, C. D. & Kim, A. Y.
Object Type: Report
System: The UNT Digital Library
Toroidal Gyrofluid Equations for Simulations of Tokamak Turbulence (open access)

Toroidal Gyrofluid Equations for Simulations of Tokamak Turbulence

A set of nonlinear gyrofluid equations for simulations of tokamak turbulence are derived by taking moments of the nonlinear toroidal gyrokinetic equation. The moment hierarchy is closed with approximations that model the kinetic effects of parallel Landau damping, toroidal drift resonances, and finite Larmor radius effects. These equations generalize the work of Dorland and Hammett [Phys. Fluids B 5, 812 (1993)] to toroidal geometry by including essential toroidal effects. The closures for phase mixing from toroidal rB and curvature drifts take the basic form presented in Waltz, et al. [Phys. Fluids B 4, 3138 (1992)], but here a more rigorous procedure is used, including an extension to higher moments, which provides significantly improved accuracy. In addition, trapped ion effects and collisions are incorporated. This reduced set of nonlinear equations accurately models most of the physics considered important for ion dynamics in core tokamak turbulence and is simple enough to be used in high resolution direct numerical simulations.
Date: April 1, 1996
Creator: Beer, M. A. & Hammett, G. W.
Object Type: Report
System: The UNT Digital Library
Effect of Opening Helix on Flying Wire Emittance Measurements (open access)

Effect of Opening Helix on Flying Wire Emittance Measurements

It has been noted for some time that after the protons are injected, when the helix is opened the proton normalized vertical emittance (as measured by the flying wires) increases by about two {pi} mm-mr. The horizontal emittance decreases by about the same amount. This has been recognized as a false result, but there has been uncertainty as to whether it was due to the flying wires not measuring the beam sigma correctly when the beam center moved at the wires or whether the effective beta at the wires changed when the helix was opened and the orbit changed all around the machine. This study attempts to answer that question. The study took place Sunday, Feb. 25, 1996, from 18:30 to 22:30. The study consisted of injecting P1, P2 and P3 as normal, coalesced bunches and P4 and P5 as uncoalesced bunch trains of nominally 11 bunches. The purpose in using more than a single bunch was to increase statistical sampling and to investigate whether there was any significant difference between coalesced and uncoalesced bunches. Because the injection kicker had a long flat-top for 36 bunch studies, P6 could not be injected and when P5 was injected, P1 emittance increased …
Date: April 1, 1996
Creator: Pruss, Stan
Object Type: Report
System: The UNT Digital Library
Orbit Dynamics for Unstable Linear Motion (open access)

Orbit Dynamics for Unstable Linear Motion

None
Date: April 1, 1996
Creator: Parzen, G.
Object Type: Report
System: The UNT Digital Library
HWVP pilot-scale vitrification system campaign: LFCM-8 summary report (open access)

HWVP pilot-scale vitrification system campaign: LFCM-8 summary report

The Hanford Waste Vitrification Plant (HWVP) is being designed to treat the high-level radiative waste (HLW) stored in underground storage tanks as an alkaline sludge. Tank waste will first be retrieved and pretreated to minimize solids requiring vitrification as HLW. The glass product resulting from HWVP operations will be stored onsite in stainless steel canisters until the HLW repository is available for final disposal. The first waste stream scheduled to be processed by the HWVP is the neutralized current acid waste (NCAW) stored in double-shell storage tanks. The Pacific Northwest Laboratory (PNL) is supporting Westinghouse Hanford Company (WHC) by providing research, development, and engineering expertise in defined areas. As a part of this support, pilot-scale testing is being conducted to support closure of HWVP design and development issues. Testing results will verify equipment design performance, establish acceptable and optimum process parameters, and support product qualification activities.
Date: April 1, 1996
Creator: Perez, J. M.; Whitney, L. D.; Buchmiller, W. C.; Daume, J. T. & Whyatt, G. A.
Object Type: Report
System: The UNT Digital Library
Particle prediction from plasma torch cutting on stainless steel, carbon steel, and aluminum (open access)

Particle prediction from plasma torch cutting on stainless steel, carbon steel, and aluminum

None
Date: April 1, 1996
Creator: Novick, V. J.; Nasiatka, J.; Brodrick, C. J.; Crawford, S. J.; Pierucci, K.; Sambrook, J. et al.
Object Type: Report
System: The UNT Digital Library
Preliminary assessment of the effects of biaxial loading on reactor pressure vessel structural-integrity-assessment technology (open access)

Preliminary assessment of the effects of biaxial loading on reactor pressure vessel structural-integrity-assessment technology

Effects of biaxial loading on shallow-flaw fracture toughness were studied to determine potential impact on structural integrity assessment of a reactor pressure vessel (RPV) under pressurized thermal shock (PTS) transient loading and pressure-temperature (PT) loading produced by reactor heatup and cooldown transients. Biaxial shallow-flaw fracture-toughness tests results were also used to determine the parameter controlling fracture in the transition temperature range, and to develop a related dual-parameter fracture-toughness correlation. Shallow-flaw and biaxial loading effects were found to reduce the conditional probability of crack initiation by a factor of nine when the shallow-flaw fracture-toughness K{sub Jc} data set, with biaxial-loading effects adjustments, was substituted in place of ASME Code K{sub Ic} data set in PTS analyses. Biaxial loading was found to reduce the shallow-flaw fracture toughness of RPV steel such that the lower-bound curve was located between ASME K{sub Ic} and K{sub IR} curves. This is relevant to future development of P-T curve analysis procedures. Fracture in shallow-flaw biaxial samples tested in the lower transition temperature range was shown to be strain controlled. A strain-based dual-parameter fracture-toughness correlation was developed and shown to be capable of predicting the effect of crack-tip constraint on fracture toughness for strain-controlled fracture.
Date: April 1, 1996
Creator: Pennell, W. E.; Bass, B. R.; Bryson, J. W.; Dickson, T. L.; McAfee, W. J. & Merkle, J. G.
Object Type: Article
System: The UNT Digital Library
Simple model of the anisotropic penetration depth in high T{sub c} superconductors (open access)

Simple model of the anisotropic penetration depth in high T{sub c} superconductors

We present a simple model of some high {Tc} cuprates based upon superconducting (S) and normal (N) layers, which quantitatively fits the data of Bonn et al. for the low-temperature T dependence of the penetration depths {lambda}{sub a,b,c} in untwinned YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}, assuming s-wave intralyer pairing. This SN model also leads to anisotropic surface states, which complicate analysis of photoemission and tunneling measurements.
Date: April 1, 1996
Creator: Klemm, Richard A. & Liu, Samuel H.
Object Type: Article
System: The UNT Digital Library
Texas Construction Report: April 1996 (open access)

Texas Construction Report: April 1996

Monthly report documenting contracts for road construction and maintentance in Texas, organized by county and district. It includes information about each project including contractor, dates, costs, and other relevant data.
Date: April 1, 1996
Creator: Texas. Department of Transportation. Construction and Maintenance Division.
Object Type: Report
System: The Portal to Texas History
Mechanisms of stability of armored bubbles: FY 1995 progress report (open access)

Mechanisms of stability of armored bubbles: FY 1995 progress report

Experimental and theoretical studies of stabilization of liquid films between bubbles were undertaken as part of an effort to model gas release in waste tanks at the Hanford nuclear reservation. Synthetic Hanford waste created here showed solids accumulation at bubble surfaces and some stabilization of bubbles in a froth upon sparging with nitrogen. Dilational interfacial rheological measurements indicate increasing hydrophobicity with increasing EDTA concentration in the wastes. There is greater dilational elasticity of the interface with solid particles present on the interface. Theoretical modeling of a 2D liquid film between bubbles containing one row of solid particles suggests that in 3D such a film would be unstable unless the solids all touch. This hints at a possible mechanism for bubble stabilization, if it can be argued that slowly evolving interfaces, as bubbles grow toward each other in the sludge, have solids closely packed, but that rapid expansion of gas during a rollover event forces the films to expand without additional solids.
Date: April 1, 1996
Creator: Rossen, W. R. & Das, S. K.
Object Type: Report
System: The UNT Digital Library
Transuranic waste characterization sampling and analysis methods manual. Revision 1 (open access)

Transuranic waste characterization sampling and analysis methods manual. Revision 1

This Methods Manual provides a unified source of information on the sampling and analytical techniques that enable Department of Energy (DOE) facilities to comply with the requirements established in the current revision of the Transuranic Waste Characterization Quality Assurance Program Plan (QAPP) for the Waste Isolation Pilot Plant (WIPP) Transuranic (TRU) Waste Characterization Program (the Program) and the WIPP Waste Analysis Plan. This Methods Manual includes all of the testing, sampling, and analytical methodologies accepted by DOE for use in implementing the Program requirements specified in the QAPP and the WIPP Waste Analysis Plan. The procedures in this Methods Manual are comprehensive and detailed and are designed to provide the necessary guidance for the preparation of site-specific procedures. With some analytical methods, such as Gas Chromatography/Mass Spectrometry, the Methods Manual procedures may be used directly. With other methods, such as nondestructive characterization, the Methods Manual provides guidance rather than a step-by-step procedure. Sites must meet all of the specified quality control requirements of the applicable procedure. Each DOE site must document the details of the procedures it will use and demonstrate the efficacy of such procedures to the Manager, National TRU Program Waste Characterization, during Waste Characterization and Certification audits.
Date: April 1, 1996
Creator: Suermann, John F.
Object Type: Report
System: The UNT Digital Library
Antitrust concerns in the modern public utility environment (open access)

Antitrust concerns in the modern public utility environment

Direct regulation of public utility activity and behavior has been the predominant approach to protect the public interest in this country. Changes in technology, as well as new thinking about the optimum role of regulation, have created a changing atmosphere in all of the traditional public utility industries. Competitive markets for many of the products and services in these industries have been developing. While monopoly power will continue to exist in certain parts of these industries and require direct regulation, in many areas a growing reliance upon competition as the best method of serving the public interest is developing. With this shift in emphasis from regulation to free markets, the antitrust laws take on new importance for these industries. In the absence of direct regulator control, those laws are society`s primary method of insuring the markets necessary to make competition an effective device for protecting the public interest. This study provides an overview of the antitrust laws, briefly describes the applicable theoretical underpinnings, and then turns to areas where public utility activity may pose special problems or conflicts with prevailing antitrust policy.
Date: April 1, 1996
Creator: Meeks, James E.
Object Type: Report
System: The UNT Digital Library
Studies of protein structure in solution and protein folding using synchrotron small-angle x-ray scattering (open access)

Studies of protein structure in solution and protein folding using synchrotron small-angle x-ray scattering

Synchrotron small angle x-ray scattering (SAXS) has been applied to the structural study of several biological systems, including the nitrogenase complex, the heat shock cognate protein (hsc70), and lysozyme folding. The structural information revealed from the SAXS experiments is complementary to information obtained by other physical and biochemical methods, and adds to our knowledge and understanding of these systems.
Date: April 1, 1996
Creator: Chen, Lingling
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Neural Network Based Montioring and Control of Fluidized Bed. (open access)

Neural Network Based Montioring and Control of Fluidized Bed.

The goal of this project was to develop chaos analysis and neural network-based modeling techniques and apply them to the pressure-drop data obtained from the Fluid Bed Combustion (FBC) system (a small scale prototype model) located at the Federal Energy Technology Center (FETC)-Morgantown. The second goal was to develop neural network-based chaos control techniques and provide a suggestive prototype for possible real-time application to the FBC system. The experimental pressure data were collected from a cold FBC experimental set-up at the Morgantown Center. We have performed several analysis on these data in order to unveil their dynamical and chaotic characteristics. The phase-space attractors were constructed from the one dimensional time series data, using the time-delay embedding method, for both normal and abnormal conditions. Several identifying parameters were also computed from these attractors such as the correlation dimension, the Kolmogorov entropy, and the Lyapunov exponents. These chaotic attractor parameters can be used to discriminate between the normal and abnormal operating conditions of the FBC system. It was found that, the abnormal data has higher correlation dimension, larger Kolmogorov entropy and larger positive Lyapunov exponents as compared to the normal data. Chaotic system control using neural network based techniques were also investigated …
Date: April 1, 1996
Creator: Bodruzzaman, M. & Essawy, M.A.
Object Type: Report
System: The UNT Digital Library
Hydrodynamic models for slurry bubble column reactors. Seventh technical progress report, January--March 1996 (open access)

Hydrodynamic models for slurry bubble column reactors. Seventh technical progress report, January--March 1996

The objective of this investigation is to convert our ``learning gas solid-liquid`` fluidization model into a predictive design model. The IIT hydrodynamic model computes the phase velocities and the volume fractions of gas, liquid and particulate phase. Model verification involves a comparison of these computed velocities and volume fractions to experimental values. A hydrodynamic model for multiphase flows, based on the principles of mass, momentum and energy conservation for each phase, was developed and applied to model gas-liquid, gas-liquid-solid fluidization and gas-solid-solid separation. To simulate the industrial slurry bubble column reactors, a computer program based on the hydrodynamic model was written with modules for chemical reactions (e.g. the synthesis of methanol), phase changes and heat exchangers. In the simulations of gas-liquid two phases flow system, the gas hold-ups, computed with a variety of operating conditions such as temperature, pressure, gas and liquid velocities, agree well with the measurements obtained at Air Products` pilot plant. The hydrodynamic model has more flexible features than the previous empirical correlations in predicting the gas hold-up of gas-liquid two-phase flow systems. In the simulations of gas-liquid-solid bubble column reactors with and without slurry circulation, the code computes volume fractions, temperatures and velocity distributions for the …
Date: April 1, 1996
Creator: Gidaspow, D.
Object Type: Report
System: The UNT Digital Library
Evaluation of multi-phase heat transfer and droplet evaporation in petroleum cracking flows (open access)

Evaluation of multi-phase heat transfer and droplet evaporation in petroleum cracking flows

A computer code ICRKFLO was used to simulate the multiphase reacting flow of fluidized catalytic cracking (FCC) riser reactors. The simulation provided a fundamental understanding of the hydrodynamics and heat transfer processes in an FCC riser reactor, critical to the development of a new high performance unit. The code was able to make predictions that are in good agreement with available pilot-scale test data. Computational results indicate that the heat transfer and droplet evaporation processes have a significant impact on the performance of a pilot-scale FCC unit. The impact could become even greater on scale-up units.
Date: April 1, 1996
Creator: Chang, S.L.; Lottes, S.A.; Petrick, M. & Zhou, C.Q.
Object Type: Article
System: The UNT Digital Library
Y-12 Development Organization technical progress report. Metal process, Part 3 (open access)

Y-12 Development Organization technical progress report. Metal process, Part 3

Clad vent set (CVS) cups were ground in the closure-weld zone to reduce the wall-thickness variation created by the cup deep-drawing process. A significantly more uniform wall thickness would be beneficial for the CVS closure-weld operation. The goal was to reduce the average within-cup wall-thickness variation (defined as the range of wall thicknesses in the closure-weld zone) approximately 50% from the Cassini production value of 42 {mu}m. This goal was shown to be achievable but, unfortunately, not with the existing blank and formed cup thicknesses.
Date: April 1, 1996
Creator: Northcutt, W.G. Jr.
Object Type: Report
System: The UNT Digital Library
Clad vent set cup closure-weld-zone grinding evaluation (open access)

Clad vent set cup closure-weld-zone grinding evaluation

Clad vent set (CVS) cups were ground in the closure-weld zone to reduce the wall-thickness variation created by the cup deep-drawing process. A significantly more uniform wall thickness would be beneficial for the CVS closure-weld operation. The goal was to reduce the average within-cup wall-thickness variation (defined as the range of wall thicknesses in the closure-weld zone) approximately 50% from the Cassini production value of 42 {micro}m. This goal was shown to be achievable but, unfortunately, not with the existing blank and formed cup thicknesses.
Date: April 1, 1996
Creator: Ulrich, G. B.; Woods, A. T. & Ohriner, E. K.
Object Type: Report
System: The UNT Digital Library
Storm water control plan for the Lower East Fork Poplar Creek Operable Unit, Oak Ridge, Tennessee (open access)

Storm water control plan for the Lower East Fork Poplar Creek Operable Unit, Oak Ridge, Tennessee

This document provides the Environmental Restoration Program with information about the erosion and sediment control, storm water management, maintenance, and reporting and record keeping practices to be employed during Phase II of the remediation project for the Lower East Fork Poplar Creek (LEFPC) Operable Unit.
Date: April 1, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library