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OIT Best Practices
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Fiscal Year 2001
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Fiscal Year 2002
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ARM Facilities Newsletter
11
OIT Tip Sheets
8
Science & Technology Review
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Fiscal Year 2000
5
Advanced Stripper Gas Produced Water Remediation, Quarterly Technical Report
4
Clean Cities alternative fuel information series
4
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
4
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Dynamic heat and moisture transport and baroclinic adjustment
In connection with the authors work on the apparent Iris Effect, they have acquired 2 years of additional data, and are redoing their analysis with the larger amount of data. So far, the results duplicate earlier results with greater statistical significance. They have also responded (successfully) to a number of criticisms of the initial publication. In particular, while differing estimates of cloudy and clear emissivity may be correct, they have shown that they reduce feedback factors by no more than 20%. The resulting feedback factors remain negative and large. Moreover, current data analyses suggest that the earlier estimates may be low for other reasons. They have also shown that all cloudy regions in the region covered by the GMS satellite are convective in origin. They are, however, continuing their work on an improved measure of cumulus activity. In particular, they are using TRMM data to determine thresholds in the T11 channel of GMS that are functions of time, position and SST. They have confirmed that the previous results had a very high statistical significance. However, they expect that the use of the improved measure of cumulus will improve this still further. They have completed their study of the possible reconciliation …
Date:
April 12, 2002
Creator:
Lindzen, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Final report: 'Rhodopseudomonas palustris' genome workshop to be held in Spring of 2001
The ''Rhodopseudomonas palustris'' genome workshop took place in Iowa City on April 6-8, 2001. The purpose of the meeting was to instruct members of the annotation working group in approaches to accomplishing the 'human' phase of the 'R. palustris' genome annotation. A partial draft of a paper describing the 'Rhodopseudomonas palustris' genome has been written and a full version of the paper should be ready for submission by the end of the summer 2002.
Date:
June 5, 2002
Creator:
Harwood, Caroline S.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the location and recency of faulting near prospective surface facilities in Midway Valley, Nye County, Nevada
Evaluation of surface faulting that may pose a hazard to prospective surface facilities is an important element of the tectonic studies for the potential Yucca Mountain high-level radioactive waste repository in southwestern Nevada. For this purpose, a program of detailed geologic mapping and trenching was done to obtain surface and near-surface geologic data that are essential for determining the location and recency of faults at a prospective surface-facilities site located east of Exile Hill in Midway Valley, near the eastern base of Yucca Mountain. The dominant tectonic features in the Midway Valley area are the north- to northeast-trending, west-dipping normal faults that bound the Midway Valley structural block-the Bow Ridge fault on the west side of Exile Hill and the Paint-brush Canyon fault on the east side of the valley. Trenching of Quaternary sediments has exposed evidence of displacements, which demonstrate that these block-bounding faults repeatedly ruptured the surface during the middle to late Quaternary. Geologic mapping, subsurface borehole and geophysical data, and the results of trenching activities indicate the presence of north- to northeast-trending faults and northwest-trending faults in Tertiary volcanic rocks beneath alluvial and colluvial sediments near the prospective surface-facilities site. North to northeast-trending faults include the Exile …
Date:
January 17, 2002
Creator:
Swan, F. H.; Wesling, J. R.; Angell, M. M.; Thomas, A. P.; Whitney, J. W. & Gibson, J. D.
Object Type:
Report
System:
The UNT Digital Library
Development and test of single-bore CosJ Nb{sub 3}Sn dipole models with cold iron yoke
Two short Nb{sub 3}Sn dipole models based on a single-bore cos-theta coil with a cold iron yoke were fabricated and tested at Fermilab. This paper summarizes the details of magnet design and fabrication procedure, and reports the test results including quench performance and quench heater studies, and the magnetic measurements.
Date:
January 14, 2002
Creator:
al., Alexander V Zlobin et
Object Type:
Article
System:
The UNT Digital Library
Evaluation of Reservoir Wettability and its Effect on Oil Recovery
The objectives of this five-year project were: (1) to achieve improved understanding of the surface and interfacial properties of crude oils and their interactions with mineral surfaces, (2) to apply the results of surface studies to improve predictions of oil production from laboratory measurements, and (3) to use the results of this research to recommend ways to improve oil recovery by waterflooding.
Date:
January 29, 2002
Creator:
Buckley, Jill S.
Object Type:
Report
System:
The UNT Digital Library
Chiral Langrangian with confinement from the QCD Langrangian
An effective Langrangian for the light quark in the field of a static source is derived systematically using the exact field correlator expansion. The lowest Gaussian term is bosonized using nonlocal colorless bosonic fields and a general structure of effective chiral Langrangian is obtained containing all set of fields. The new and crucial result is that the condensation of scalar isoscalar field which is a usual onset of chiral symmetry breaking and is constant in space-time, assumes here the form of the confining string and contributes to the confining potential while the rest bosonic fields describe mesons with the q{rvec q} quark structure and pseudoscalars play the role of Nambu-Goldstone fields. Using derivative expansion the effective chiral Langrangian is deduced containing both confinement and chiral effects for heavy-light mesons. The pseudovector quark coupling constant is computed to be exactly unity in the local limit in agreement with earlier large N{sub c} arguments.
Date:
January 1, 2002
Creator:
Simonov, Yu A.
Object Type:
Article
System:
The UNT Digital Library
X-O557 MODIFIED STEVEN TESTS: SERIES I AND II
None
Date:
January 1, 2002
Creator:
IDAR, D. J.; STRAIGHT, J. W. & AL, ET
Object Type:
Article
System:
The UNT Digital Library
Mechanism of the Mg-chelatase step in chlorophyll biosynthesis. Final technical report
Mg-chelatase catalyzes the insertion of Mg2+ into protoporphyrin-IX (Proto) in the chlorophyll biosynthetic pathway. This is the first step unique to the chlorophyll pathway and is at the branchpoint between heme and chlorophyll biosynthesis. Previous work from our laboratory has shown that the enzyme from pea chloroplasts requires three distinct protein fractions (now known to contain the D, I and H subunits). The reaction requires ATP in two distinct steps: activation requiring two of the fractions (I and D) and metal ion insertion, requiring all three fractions. Work covered in this granting period includes the cloning and expression of the active form of one of the pea subunits and demonstration of the change in chromatographic behavior of the subunits upon activation with ATP.
Date:
May 2, 2002
Creator:
Weinstein, Jon
Object Type:
Report
System:
The UNT Digital Library
Phase mixing of chaotic orbits as an irreversible ''relaxation'' mechanism
Orbits that are chaotic will tend to phase-mix exponentially through their accessible phase space. This phenomenon, commonly called ''chaotic mixing'', stands in marked contrast to phase mixing of regular orbits. It is inherently irreversible, and thus its associated e-folding time scale sets a condition on any process envisioned for emittance compensation. Accordingly, two questions arise. First, under what conditions does chaotic mixing manifest itself in beams? Second, when it is active, over what time scale does it operate? The work described here is part of an ongoing effort to answer these questions.
Date:
January 15, 2002
Creator:
al., C.L. Bohn et
Object Type:
Article
System:
The UNT Digital Library
Replacement of HEPA Filters at the LANL CMR Facility: Risks Reduced by Comprehensive Waste Characterization
None
Date:
January 1, 2002
Creator:
Corpion, J.; Barr, A.; Martinez, P. & Bader, M.
Object Type:
Article
System:
The UNT Digital Library
Polarized RF guns for linear colliders: An ICFA Workshop
The ICFA Workshop on Polarized RF Guns for Linear Colliders was held at Fermilab during April 18-20, 2001. It was attended by 37 scientists from 14 institutions. A list of participants is appended. An RF photoemission gun that delivers polarized electrons at low emittance would be an attractive electron source for a linear collider. Moreover, recently it has been demonstrated that an RF gun in conjunction with nearby injection system optics can deliver a beam with a high ratio of transverse emittances; a simplification of a linear collider's damping system could result. However, at present RF electron gun technology has not developed sufficiently to assure that such a source is feasible. The purpose of the workshop was to review the status of polarized RF gun development with linear collider application in mind, and outline a possible program for the future. A table lists the requirements for the electron injector for proposed linear colliders. The specifications are given for the beam before and after the electron damping ring.
Date:
January 31, 2002
Creator:
Edwards, D. A.
Object Type:
Report
System:
The UNT Digital Library
A Novel Approach to Materials Development for Advanced Reactor Systems - Quarterly Progress Report: Year 2; Quarter 1
OAK B188 A Novel Approach to Materials Development for Advanced Reactor Systems - Quarterly Progress Report: Year 2; Quarter 1. There are three major goals for year two of the program. First, to build on the successful initial experiments on proton irradiation of pressure vessel steel to expand the irradiations to study dose rate and temperature effects, radiation effects on commercial alloys and to better characterize the precipitates. Second, we will begin irradiation and characterization of the Zircaloy alloys. Finally, we will continue low temperature irradiations and begin irradiation of chromium pre-enriched samples and cold-worked samples to assess the role of microstructure in IASCC of austenitic stainless steels. In quarter 1 of year 2, the project goal was to complete irradiation of model alloys of RPV steels for a range of doses and an initial sample characterization. We also planned to begin characterization of Zircalloy alloy samples and to make a set of cold-worked samples of 304 SS that would have a fixed hardness following subsequent irradiation to different doses.
Date:
June 25, 2002
Creator:
Was, G. S.; Atzmon, M. & Wang, L.
Object Type:
Report
System:
The UNT Digital Library
Commissioning and operation of the CDF silicon detector
The CDF-II silicon detector has been partially commissioned and used for taking preliminary physics data. This paper is a report on commissioning and initial operations of the 5.8m{sup 2} silicon detector. This experience can be useful to the large silicon systems that are presently under construction.
Date:
January 18, 2002
Creator:
D'Auria, S.
Object Type:
Article
System:
The UNT Digital Library
High Resolution X-Ray Fluorescence Micro-Tomography on Single Sediment Particles
This work focuses on the investigation of the distribution of contaminants in individual sediment particles from the New York/New Jersey Harbor. Knowledge of the spatial distribution of the contaminants within the particles is needed to enable (1) more sophisticated approaches to the understanding of the fate and transport of the contaminants in the environment and (2) more refined methods for cleaning the sediments. The size of the investigated particles ranges from 30-80 microns. Due to the low concentration of the elements of interest and the microscopic size of the environmental particles in these measurements, the small size and high intensity of the analyzing X-ray beam was critical. The high photon flux at the ESRF Microfocus beam line (ID13) was used as the basis for fluorescence tomography to investigate whether the inorganic compounds are taken upon the surface organic coating or whether they are distributed through the volume of the grains being analyzed. The experiments were done using a 13 keV monochromatic beam of approximately 2 {micro}m in size having an intensity of 10{sup 10} ph/s, allowing absolute detection limits on the 0.04-1 fg level for Ti, Cr, Mn, Fe, Ni, and Zn.
Date:
July 29, 2002
Creator:
Vincze, L.; Vekemans, B.; Szaloki, I.; Janssens, K.; Van Grieken, R.; Feng, H. et al.
Object Type:
Article
System:
The UNT Digital Library
Small Wind Electric Systems: A U.S. Consumer's Guide
The U.S. Consumer's Guide for Small Wind Electric systems provides consumers with enough information to help them determine if a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include: how to make your home more energy efficient, how to choose the right size turbine, the parts of a wind electric system, determining if there is enough wind resource on your site, choosing the best site for your turbine, connecting your system to the utility grid, and if it's possible to become independent of the utility grid using wind energy.
Date:
October 31, 2002
Creator:
O'Dell, K.
Object Type:
Book
System:
The UNT Digital Library
Microstructural and physical basis for superplastic cavitation in aluminum alloys. Final report
None
Date:
April 2, 2002
Creator:
Ghosh, Amit K.
Object Type:
Report
System:
The UNT Digital Library
Plant Physiological Aspects of Silicon
The element silicon, Si, represents an anomaly in plant physiology (Epstein, 1994, 1999b). Plants contain the element in amounts comparable to those of such macronutrient elements as phosphorus, calcium, magnesium, viz. at tissue concentrations (dry weight basis) of about 0.1-10%, although both lower and higher values may be encountered. In some plants, such as rice and sugarcane, Si may be the mineral element present in largest amount. In much of plant physiological research, however, Si is considered a nonentity. Thus, not a single formulation of the widely used nutrient solutions includes Si. Experimental plants grown in these solutions are therefore abnormally low in their content of the element, being able to obtain only what Si is present as an unavoidable contaminant of the nutrient salts used, and from the experimental environment and their own seeds. The reason for the astonishing discrepancy between the prominence of Si in plants and its neglect in much of the enterprise of plant physiological research is that Si does not qualify as an ''essential'' element. Ever since the introduction of the solution culture method in the middle of the last century (Epstein, 1999a, b) it has been found that higher plants can grow in nutrient …
Date:
July 10, 2002
Creator:
Epstein, E.; Fan, T.W-M.; Higashi, R.M. & Silk, W.K.
Object Type:
Report
System:
The UNT Digital Library
U.S. Department of Energy University Reactor Sharing Program at the University of Florida. Final report for period August 15, 2000 - May 31, 2001
Department of Energy Grant Number DE-FG02-96NE38152 was supplied to the University of Florida Training Reactor (UFTR) facility through the U.S. Department of Energy's University Reactor Sharing Program. The renewal proposal submitted in January 2000 originally requested over $73,000 to support various external educational institutions using the UFTR facilities in academic year 2000-01. The actual Reactor Sharing Grant was only in the amount of $40,000, all of which has been well used by the University of Florida as host institution to support various educational institutions in the use of our reactor and associated facilities as indicated in the proposal. These various educational institutions are located primarily within the State of Florida. However, when the 600-mile distance from Pensacola to Miami is considered, it is obvious that this Grant provides access to reactor utilization for a broad geographical region and a diverse set of user institutions serving over fourteen million inhabitants throughout the State of Florida and still others throughout the Southeast.
Date:
January 1, 2002
Creator:
Vernetson, William G.
Object Type:
Report
System:
The UNT Digital Library
Wabash River Coal Gasification Repowering Project: A DOE Assessment
The goal of the U.S. Department of Energy (DOE) Clean Coal Technology Program (CCT) is to furnish the energy marketplace with a number of advanced, more efficient, and environmentally responsible coal utilization technologies through demonstration projects. These projects seek to establish the commercial feasibility of the most promising advanced coal technologies that have developed beyond the proof-of-concept stage. This document serves as a DOE post-project assessment (PPA) of a project selected in CCT Round IV, the Wabash River Coal Gasification Repowering (WRCGR) Project, as described in a Report to Congress (U.S. Department of Energy 1992). Repowering consists of replacing an existing coal-fired boiler with one or more clean coal technologies to achieve significantly improved environmental performance. The desire to demonstrate utility repowering with a two-stage, pressurized, oxygen-blown, entrained-flow, integrated gasification combined-cycle (IGCC) system prompted Destec Energy, Inc., and PSI Energy, Inc., to form a joint venture and submit a proposal for this project. In July 1992, the Wabash River Coal Gasification Repowering Project Joint Venture (WRCGRPJV, the Participant) entered into a cooperative agreement with DOE to conduct this project. The project was sited at PSI Energy's Wabash River Generating Station, located in West Terre Haute, Indiana. The purpose of this …
Date:
January 15, 2002
Creator:
National Energy Technology Laboratory (U.S.)
Object Type:
Report
System:
The UNT Digital Library
The Ohio State University Reactor Sharing Program [August 15, 2000 - May 31, 2001]
During the period from August 15, 2000 through may 31, 2001 the Ohio State University (OSU) Research Reactor participated in the Reactor Sharing Program by providing services to nine colleges and universities and four secondary school organizations. A total of about 17 faculty and 170 students utilized their facilities. The staff of the OSU Research Reactor is generally involved in four types of experiments at the Nuclear Reactor Laboratory. Included are introductions to nuclear research, neutron activation analysis, material irradiation, and classes that measure various reactor parameters.
Date:
January 4, 2002
Creator:
Myser, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Stackable middleware services for advanced multimedia applications. Final report for period July 14, 1999 - July 14, 2001
In this project, the authors propose the research, development, and distribution of a stackable component-based multimedia streaming protocol middleware service. The goals of this stackable middleware interface include: (1) The middleware service will provide application writers and scientists easy to use interfaces that support their visualization needs. (2) The middleware service will support a variety of image compression modes. Currently, many of the network adaptation protocols for video have been developed with DCT-based compression algorithms like H.261, MPEG-1, or MPEG-2 in mind. It is expected that with advanced scientific computing applications that the lossy compression of the image data will be unacceptable in certain instances. The middleware service will support several in-line lossless compression modes for error-sensitive scientific visualization data. (3) The middleware service will support two different types of streaming video modes: one for interactive collaboration of scientists and a stored video streaming mode for viewing prerecorded animations. The use of two different streaming types will allow the quality of the video delivered to the user to be maximized. Most importantly, this service will happen transparently to the user (with some basic controls exported to the user for domain specific tweaking). In the spirit of layered network protocols (like …
Date:
February 1, 2002
Creator:
Feng, Wu-chi & Crawfis, Roger, Weide, Bruce
Object Type:
Report
System:
The UNT Digital Library
CRITICAL MASSES OF HIGHLY ENRICHED URANIUM DILUTED WITH MATRIX MATERIAL
None
Date:
January 1, 2002
Creator:
SANCHEZ, R.; LOAIZA, D. & KIMPLAND, R.
Object Type:
Article
System:
The UNT Digital Library
GDB - Human Genome Database final report
This is the DOE final report for the GDB, Human Genome Database, project at the Johns Hopkins University.
Date:
January 8, 2002
Creator:
Talbot, C. Conover, Jr.
Object Type:
Report
System:
The UNT Digital Library
R and D for a single-layer Nb{sub 3}Sn common coil dipole using the react-and-wind fabrication technique
A dipole magnet based on the common coil design, using prereacted Nb{sub 3}Sn superconductor, is under development at Fermilab, for a future Very Large Hadron Collider. This magnet has some innovative design and technological features such as single layer coils, a 22 mm wide 60-strand Rutherford type cable and stainless steel collars reinforced by horizontal bridges inserted between coil blocks. Both left and right coils are wound simultaneously into the collar structure and then impregnated with epoxy. In order to optimize the design and fabrication techniques an R&D program is underway. The production of cables with the required characteristics was shown possible. Collar laminations were produced, assembled and tested in order to check the effectiveness of the bridges and the validity of the mechanical design. A mechanical model consisting of a 165 mm long section of the magnet straight section was assembled and tested. This paper summarizes the status of the program, and reports the results of fabrication and test of cable, collars and the mechanical model.
Date:
January 14, 2002
Creator:
al., Giorgio Ambrosio et
Object Type:
Article
System:
The UNT Digital Library