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933
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659
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27
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20
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17
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15
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Betatron motion with coupling of horizontal and vertical degrees of freedom
The Courant-Snyder parameterization of one-dimensional linear betatron motion is generalized to two-dimensional coupled linear motion. To represent the 4 x 4 symplectic transfer matrix the following ten parameters were chosen: four beta-function, four alpha-functions and two betatron phase advances. The beta-functions have a meaning similar to the Courant-Snyder parameterization, and the definition of alpha-functions coincides with the standard one at regions with zero longitudinal magnetic field, where they are equal to negative half-derivatives of the beta-functions. Such a parameterization can be useful for analysis of coupled betatron motion in circular machines and transfer lines.
Date:
October 1, 1999
Creator:
Lebedev, V. A. & Bogacz, S. A.
Object Type:
Article
System:
The UNT Digital Library
Bin Set 1 Calcine Retrieval Feasibility Study
At the Department of Energy's Idaho Nuclear Technology and Engineering Center, as an interim waste management measure, both mixed high-level liquid waste and sodium bearing waste have been solidified by a calculation process and are stored in the Calcine Solids Storage Facilities. This calcined product will eventually be treated to allow final disposal in a national geologic repository. The Calcine Solids Storage Facilities comprise seven ''bit sets.'' Bin Set 1, the first to be constructed, was completed in 1959, and has been in service since 1963. It is the only bin set that does not meet current safe-shutdown earthquake seismic criteria. In addition, it is the only bin set that lacks built-in features to aid in calcine retrieval. One option to alleviate the seismic compliance issue is to transport the calcine from Bin Set 1 to another bin set which has the required capacity and which is seismically qualified. This report studies the feasibility of retrieving the calcine from Bi n Set 1 and transporting it into Bin Set 6 which is located approximately 650 feet away. Because Bin Set 1 was not designed for calcine retrieval, and because of the high radiation levels and potential contamination spread from the …
Date:
October 1, 1999
Creator:
Adams, R. D.; Berry, S. M.; Galloway, K. J.; Langenwalter, T. A.; Lopez, D. A.; Noakes, C. M. et al.
Object Type:
Report
System:
The UNT Digital Library
BLAST FURNACE GRANULAR COAL INJECTION SYSTEM. Final Report Volume 2: Project Performance and Economics
Bethlehem Steel Corporation (BSC) requested financial assistance from the Department of Energy (DOE), for the design, construction and operation of a 2,800-ton-per-day blast furnace granulated coal injection (BFGCI) system for two existing iron-making blast furnaces. The blast furnaces are located at BSC's facilities in Burns Harbor, Indiana. The demonstration project proposal was selected by the DOE and awarded to Bethlehem in November 1990. The design of the project was completed in December 1993 and construction was completed in January 1995. The equipment startup period continued to November 1995 at which time the operating and testing program began. The blast furnace test program with different injected coals was completed in December 1998.
Date:
October 1, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Boerne Independent School District Focus (Boerne, Tex.), Vol. [1], No. 1, Ed. 1, October-November 1999
Quarterly newsletter from Boerne, Texas that includes news and information about the Boerne Independent School District.
Date:
1999-10/1999-11
Creator:
Gaston-Camarigg, Julia
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 94, No. 79, Ed. 1 Friday, October 1, 1999
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
October 1, 1999
Creator:
Keasling, Edna & Fierro, Jennifer
Object Type:
Newspaper
System:
The Portal to Texas History
Border Business Indicators, Volume 23, Number 10, October 1999
Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.
Date:
October 1999
Creator:
Texas Center for Border Economic and Enterprise Development
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Boundary conditions on internal three-body wave functions
For a three-body system, a quantum wave function {Psi}{sub m}{sup {ell}} with definite {ell} and m quantum numbers may be expressed in terms of an internal wave function {chi}{sub k}{sup {ell}} which is a function of three internal coordinates. This article provides necessary and sufficient constraints on {chi}{sub k}{sup {ell}} to ensure that the external wave function {Psi}{sub k}{sup {ell}} is analytic. These constraints effectively amount to boundary conditions on {chi}{sub k}{sup {ell}} and its derivatives at the boundary of the internal space. Such conditions find similarities in the (planar) two-body problem where the wave function (to lowest order) has the form r{sup |m|} at the origin. We expect the boundary conditions to prove useful for constructing singularity free three-body basis sets for the case of nonvanishing angular momentum.
Date:
October 1, 1999
Creator:
Mitchell, Kevin A. & Littlejohn, Robert G.
Object Type:
Article
System:
The UNT Digital Library
Brine and Gas Flow Patterns Between Excavated Areas and Disturbed Rock Zone in the 1996 Performance Assessment for the Waste Isolation Pilot Plant for a Single Drilling Intrusion that Penetrates Repository and Castile Brine Reservoir
The Waste Isolation Pilot Plant (WIPP), which is located in southeastern New Mexico, is being developed for the geologic disposal of transuranic (TRU) waste by the U.S. Department of Energy (DOE). Waste disposal will take place in panels excavated in a bedded salt formation approximately 2000 ft (610 m) below the land surface. The BRAGFLO computer program which solves a system of nonlinear partial differential equations for two-phase flow, was used to investigate brine and gas flow patterns in the vicinity of the repository for the 1996 WIPP performance assessment (PA). The present study examines the implications of modeling assumptions used in conjunction with BRAGFLO in the 1996 WIPP PA that affect brine and gas flow patterns involving two waste regions in the repository (i.e., a single waste panel and the remaining nine waste panels), a disturbed rock zone (DRZ) that lies just above and below these two regions, and a borehole that penetrates the single waste panel and a brine pocket below this panel. The two waste regions are separated by a panel closure. The following insights were obtained from this study. First, the impediment to flow between the two waste regions provided by the panel closure model is …
Date:
October 1, 1999
Creator:
Economy, Kathleen M.; Helton, Jon Craig & Vaughn, Palmer
Object Type:
Report
System:
The UNT Digital Library
Budget Issues: Budgeting for Inflation in Civilian Agencies
A staff study issued by the General Accounting Office with an abstract that begins "GAO reviewed the Department of Defense's (DOD) experiences with budgeting for inflation, focusing on whether it is feasible for civilian agencies to also budget for inflation."
Date:
October 1, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Calculation of the evolution of the fuel microstructure in UMo alloys and implications for fuel swelling.
The evolution of a cellular dislocation structure and subsequent recrystallization have been identified as important aspects of the irradiated UMo alloy microstructure that can have a strong impact on dispersion fuel swelling. Dislocation kinetics depends on the preferential bias of dislocations for interstitial compared to vacancies. This paper presents theoretical calculations for the evolution of a cellular dislocation structure, and recrystallization in U-10Mo. Implications for fuel swelling are discussed.
Date:
October 1, 1999
Creator:
Rest, J.; Hofman, G. L.; Konovalov, I. & Maslov, A.
Object Type:
Article
System:
The UNT Digital Library
CATALYTIC GASIFICATION OF COAL USING EUTECTIC SALT MIXTURES
This is the progress report for the DOE grant DE-FG26-97FT97263 entitled, ''Catalytic Gasification of Coal Using Eutectic Salt Mixtures'' for the period April 1999 to October 1999. The project is being conducted jointly by Clark Atlanta University, the University of Tennessee Space Institute and Georgia Institute of Technology. The overall objectives of the project are to identify appropriate eutectic salt mixture catalysts for coal gasification; assess agglomeration tendency of catalyzed coal; evaluate various catalyst impregnation techniques to improve initial catalyst dispersion; evaluate effects of major process variables (such as temperature and system pressure) on coal gasification; evaluate the recovery, regeneration and recycle of the spent catalysts; and conduct thorough analysis and modeling of the gasification process to provide better understanding of the fundamental mechanisms and kinetics of the process. During this reporting period, free swelling index measurements of the coal, fixed-bed gasification experiments, kinetic modeling of the catalyzed gasification, and X-ray diffraction analysis of catalyst and gasified char samples were undertaken. The gasification experiments were carried out using two different eutectic salt mixtures of Li{sub 2}CO{sub 3}-Na{sub 2}CO{sub 3}-K{sub 2}CO{sub 3} (LNK) system and Na{sub 2}CO{sub 3}-K{sub 2}CO{sub 3} (NK) system. The gasification process followed a Langmuir-Hinshelwood type model. At …
Date:
October 1, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Cat's Claw (Archer City, Tex.), Vol. 54, No. 1, Ed. 1 Friday, October 1, 1999
Monthly student newspaper from Archer City High School in Archer City, Texas that includes news and information of interest to students along with advertising.
Date:
October 1, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
CDEV-NT: Porting the Control Device Interface to Windows NT
In recent years the rapid increase in processing power of the personal computer has made it a significant competitor to high-end workstations for accelerator control and experimental physics applications. When the decreasing price of the PC and the availability of inexpensive commercial software is also considered, NT becomes a very attractive alternative to traditional UNIX systems. In order to simplify the integration of Personal Computers into our operating environment, we have ported the Control Device (CDEV) Interface to Windows NT. By supporting CDEV on this platform, we can provide routine access to our existing control system. Additionally, CDEV allows us to create an interface from our UNIX workstations to Windows NT applications (such as databases) that are significantly less expensive on the PC. This paper details the pitfalls we encountered during the software migration and will provide a direct comparison between the performance of CDEV applications on UNIX and NT. P articular attention is paid to network performance, which represents most of the overhead of this transition.
Date:
October 1, 1999
Creator:
Akers, W.; Chen, J. & Watson, C.
Object Type:
Article
System:
The UNT Digital Library
CdZnTe Material Uniformity and Coplanar-Grid Gamma-Ray Detector Performance
None
Date:
October 1, 1999
Creator:
Amman, M.; Luke, P. N. & Lee, J. S.
Object Type:
Article
System:
The UNT Digital Library
CENTRIFUGAL MEMBRANE FILTRATION
The overall project consists of several integrated research phases related to the applicability, continued development, demonstration, and commercialization of the SpinTek centrifugal membrane filtration process. Work performed during this reporting period consisted of Phase 2 evaluation of the SpinTek centrifugal membrane filtration technology and Phase 3, Technology Partnering. During Phase 1 testing conducted at the EERC using the SpinTek ST-IIL unit operating on a surrogate tank waste, a solids cake developed on the membrane surface. The solids cake was observed where linear membrane velocities were less than 17.5 ft/s and reduced the unobstructed membrane surface area up to 25%, reducing overall filtration performance. The primary goal of the Phase 2 research effort was to enhance filtration performance through the development and testing of alternative turbulence promoter designs. The turbulence promoters were designed to generate a shear force across the entire membrane surface sufficient to maintain a self-cleaning membrane capability and improve filtration efficiency and long-term performance. Specific Phase 2 research activities included the following: System modifications to accommodate an 11-in.-diameter, two-disk rotating membrane assembly; Development and fabrication of alternative turbulence promoter designs; Testing and evaluation of the existing and alternative turbulence promoters under selected operating conditions using a statistically designed …
Date:
October 1, 1999
Creator:
Stepan, Daniel J.; Stevens, Bradley G. & Hetland, Melanie D.
Object Type:
Report
System:
The UNT Digital Library
The CERN PS/SL Controls Java Application Programming Interface
The PS/SL Convergence Project was launched in March 1998. Its objective is to deliver a common control as infrastructure for the CERN accelerators by year 2001. In the framework of this convergence activity, a project was launched to develop a Java Application Programming Interface (API) between programs written in the Java language and the PS and SL accelerator equipment. This Java API was specified and developed in collaboration with TJNAF. It is based on the Java CDEV [1] package that has been extended in order to end up with a CERN/TJNAF common product. It implements a detailed model composed of devices organized in named classes that provide a property-based interface. It supports data subscription and introspection facilities. The device model is presented and the capabilities of the API are described with syntax examples. The software architecture is also described.
Date:
October 1, 1999
Creator:
Deloose, I.; Cuperus, J.; Charrue, P.; Di Maio, F.; Kostro, K.; Eynden, M. Vanden et al.
Object Type:
Article
System:
The UNT Digital Library
Characterization of the Damping of a Free Vibrating Piezoelectric Motor Stator by Displacement Measurements
This report talks about Characterization of the Damping of a Free Vibrating Piezoelectric Motor Stator by Displacement Measurements
Date:
October 1999
Creator:
Yerganian, S. S.
Object Type:
Report
System:
The UNT Digital Library
Charge exchange {rho}{sup zero}{pi}{sup +} photoproduction and implications for searches of exotic meson
The authors analyze the processes {rvec {gamma}} + p {r_arrow} {rho}{sup 0}{pi}{sup +}n at low momentum transfer focusing on a possibility of production of an exotic J{sup PC} = 1{-+} meson state. In particular they discuss polarization observables and conclude that linear photon polarization is instrumental for separating of the exotic wave.
Date:
October 1, 1999
Creator:
Afanasev, A. V. & Szczepaniak, A. P.
Object Type:
Article
System:
The UNT Digital Library
Chemical and Radiochemical Constituents in Water from Wells in the Vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Laboratory, Idaho, 1996
The U.S. Geological Survey, in response to a request from the U.S. Department of Energy's Pittsburgh Naval Reactors Office, Idaho Branch Office (IBO), samples water from 13 wells during 1996 as part of a long-term project to monitor water quality to the Snake River Plain aquifer in the vicinity of the Naval Reactors Facility (NRF), Idaho National Engineering and Environmental Laboratory, Idaho. The IBO requires information about the mobility of radionuclide- and chemical-waste constituents in the Snake River Plain aquifer. Waste-constituent mobility is determined principally by (1) the rate and direction of ground-water flow; (2) the locations, quantities, and methods of waste disposal; (3) waste-constituents chemistry; and (4) the geochemical processes taking place in the aquifer. The purpose of the data-collection program is to provide IBO with water-chemistry data to evaluate the effect of NRF activities on the water quality of the Snake River Plain aquifer. Water samples were analyzed for naturally occurring constituents and man-made contaminants.
Date:
October 1, 1999
Creator:
Knobel, L. L.; Bartholomay, R. C.; Tucker, B. J. & Williams, L. M.
Object Type:
Report
System:
The UNT Digital Library
The Chemical Exhaust Hazards of Dichlorosilane Deposits Determined with FT-ICR Mass Spectrometry
Flammable deposits have been analyzed from the exhaust systems of tools employing dichlorosilane (DCS) as a processing gas. Exact mass determinations with a high-resolution Fourier-transform ion-cyclotron resonance (FT-ICR) mass spectrometer allowed the identification of various polysiloxane species present in such an exhaust flow. Ion-molecule reactions indicate the preferred reaction pathway of siloxane formation is through HCl loss, leading to the highly reactive polysiloxane that was detected in the flammable deposits.
Date:
October 1, 1999
Creator:
Jarek, Russell L. & Thornberg, Steven M.
Object Type:
Article
System:
The UNT Digital Library
The CHESHIRE Migration Experiment A Summary Report
The CHESHIRE nuclear weapon test was detonated in 1976 in fractured volcanic rock at the Nevada Test Site (NTS). This testis representative of many other high-yield tests conducted below the water table in the Pahute Mesa area of the NTS. Since 1976 we have been studying the movement of test-related radionuclides within a few hundred meters of the explosion cavity. CHESHIRE is the only nuclear test characterized before, immediately after, and for decades following the detonation and provides data on both the prompt and long-term dispersal of radionuclides after an underground nuclear test. For this reason it is a unique field-scale transport experiment. Solid and fluid samples were collected from a drill back hole extending into and through the cavity in order to measure the initial distributions of radionuclides after the detonation. We subsequently pumped and sampled water from the cavity region and from a hydraulically transmissive zone about 400 m higher in the collapse chimney. A satellite well was also drilled 380 m down gradient from CHESHIRE and intercepted radionuclides (including tritium in high concentration) being transported through transmissive aquifers. Studies of radionuclide migration at CHESHIRE documented for the first time at the NTS the transport of relatively insoluble …
Date:
October 1, 1999
Creator:
Sawyer, David A.; Thompson, Joseph L. & Smith, David K.
Object Type:
Report
System:
The UNT Digital Library
Chosen Solutions to the Engineering Challenges of the National Spherical Torus Experiment (NSTX) Magnets
NSTX is one of the largest of a new class of magnetic plasma research devices known as spherical toroids (STs). The plasma in a ST is characterized by its almost spherical shape with a slender cylindrical region through its vertical axis. The so-called ''center stack'' is located in this region. It contains magnetic windings for confining the plasma, induce the plasma current, and shape the plasma. This paper will describe the engineering challenges of designing the center stack magnets to meet their operational requirements within this constrained space.
Date:
October 1, 1999
Creator:
Neumeyer, C.; Fan, H.M.; Chrzanowski, J.; Heitzenroeder, P. & Team, and the NSTX
Object Type:
Report
System:
The UNT Digital Library
The Christian Chronicle (Oklahoma City, Okla.), Vol. 56, No. 10, Ed. 1, October 1999
Monthly newspaper from Oklahoma City, Oklahoma that includes news and information about the Churches of Christ along with advertising.
Date:
October 1999
Creator:
McBride, Bailey & LaMascus, R. Scott
Object Type:
Newspaper
System:
The Portal to Texas History
The City Limits, Volume 4, October 1999
Monthly newsletter published for city employees of Denton, Texas containing work-related information, updates about employees, and other news.
Date:
October 1999
Creator:
Denton (Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History