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An Annual Report on Full-Time Classified State Employee Turnover for Fiscal Year 1999
Report of the Texas State Auditor's Office related to the full-time classified state employee turnover rate for Fiscal Year 1999. This report provides information on employee turnover for use in evaluating and analyzing trends in state employment and in addressing the causes of state employee turnover.
Date:
March 2000
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
Application of Integrated Reservoir Management and Reservoir Characterization
Reservoir performance and characterization are vital parameters during the development phase of a project. Infill drilling of wells on a uniform spacing, without regard to characterization does not optimize development because it fails to account for the complex nature of reservoir heterogeneities present in many low permeability reservoirs, especially carbonate reservoirs. These reservoirs are typically characterized by: (1) large, discontinuous pay intervals; (2) vertical and lateral changes in reservoir properties; (3) low reservoir energy; (4) high residual oil saturation; and (5) low recovery efficiency. The operational problems they encounter in these types of reservoirs include: (1) poor or inadequate completions and stimulations; (2) early water breakthrough; (3) poor reservoir sweep efficiency in contacting oil throughout the reservoir as well as in the nearby well regions; (4) channeling of injected fluids due to preferential fracturing caused by excessive injection rates; and (5) limited data availability and poor data quality. Infill drilling operations only need target areas of the reservoir which will be economically successful. If the most productive areas of a reservoir can be accurately identified by combining the results of geological, petrophysical, reservoir performance, and pressure transient analyses, then this ''integrated'' approach can be used to optimize reservoir performance during …
Date:
March 1, 2000
Creator:
Bergeron, Jack; Blasingame, Tom; Doublet, Louis; Kelkar, Mohan; Freeman, George; Callard, Jeff et al.
Object Type:
Report
System:
The UNT Digital Library
Arc-Discharge Ion Sources for Heavy Ion Fusion
A miniature multiple beamlet approach to an injector system was recently proposed in order to reduce the size, cost, and power requirements of the injector. The beamlets of very high current density are needed to meet the brightness requirement. Besides vacuum arc ion sources, cold-cathode gas ion sources are candidates for this application. Vacuum-arc metal ion sources and vacuum-arc-like gas ion sources are discussed. Experiments are presented that focus on the short-pulse plasma composition and ion charge state distribution. Mg and Sr have been identified as the most promising metals leading to mono-species beams when 20 {mu}s arc pulses are used. It is shown that the efficient production of gas ions requires the presence of a magnetic field.
Date:
March 1, 2000
Creator:
Anders, A. & Kwan, J. W.
Object Type:
Article
System:
The UNT Digital Library
Assessment and Testing of Long-Line Interface Devices
None
Date:
March 1, 2000
Creator:
Barnes, P. R. & McConnell, B. W.
Object Type:
Report
System:
The UNT Digital Library
Asymmetric quarks in the proton
Asymmetries in the quark momentum distributions in the proton reveal fundamental aspects of strong interaction physics. Differences between {anti u} and {anti d} quarks in the proton sea provide insight into the dynamics of the pion cloud around the nucleon and the nature of chiral symmetry breaking. Polarized flavor asymmetries allow the effects of pion clouds to be disentangled from those of antisymmetrization. Asymmetries between s and {anti s} quark distributions in the nucleon are also predicted from the chiral properties of QCD.
Date:
March 1, 2000
Creator:
Melnitchouk, W.
Object Type:
Article
System:
The UNT Digital Library
Atmospheric radiation measurement - unmanned aerospace vehicle. Final technical report
None
Date:
March 1, 2000
Creator:
Gautier, Catherine
Object Type:
Report
System:
The UNT Digital Library
An Audit of the Financial Statements of the Permanent School Fund for the Fiscal Year Ended August 31, 1999
Report of the Texas State Auditor's Office related to the audit opinion on the Permanent School Fund's (Fund) fiscal year 1999 financial statements, which are materially correct in accordance with generally accepted accounting principles.
Date:
March 2000
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Selected Management Controls for Various Health Related Institutions
Report of the Texas State Auditor's Office related to determining if four health-related institutions appropriately plan and adjust for the dynamically changing health care environment, especially as it becomes more dependent on managed care contracts.
Date:
March 2000
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
Balanced Dairying: Production, Volume 23, Number 2, March 2000
Newsletter of the Texas Agricultural Extension Service discussing topics related to raising dairy cows, dairy production, and managing dairy operations.
Date:
March 2000
Creator:
Texas Agricultural Extension Service
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Ballast-mounted PV arrays: Phase 2 final report
The expansive flat rooftops of industrial and commercial buildings across America offer the largest, most secure, and potentially least-cost real estate opportunity to install massive amounts of solar photovoltaic generation in the building sector. Unfortunately, mechanical penetration of roofing membranes is very expensive and perceived by building owners and operators to increase the likelihood of leaking. In response Ascension Technology has pioneered the development of low-cost ballasted approaches for mounting PV arrays. Recently, however, we have experienced our first two instances in which strong winds have moved our arrays on rooftops and heightened our interest, and the PV industries' need, to develop zero-penetration mounting techniques that are more secure, yet remain low in cost. In this PV BONUS project, Ascension Technology and its partners addressed wind loading on solar panels and the suitability of using frictional forces between ballast trays and roofing materials to resist PV arrays sliding on rooftops. The primary goal of the project is to capture the potential cost savings made possible by ballast-mounting by showing under what conditions it can satisfy wind loading concerns. A secondary goal is to address a more geographically constrained concern regarding withstanding seismic forces.
Date:
March 1, 2000
Creator:
Kern, Edward C.
Object Type:
Report
System:
The UNT Digital Library
Band spreading in two-dimensional microchannel turns for electrophoretic or electroosmotic species transport
Analytical and numerical methods are employed to investigate species transport by electrophoretic or electroosmotic motion in the curved geometry of a two-dimensional turn. Closed-form analytical solutions describing the turn-induced diffusive and dispersive spreading of a species band are presented for both the low and high Peclet number limits. The authors find that the spreading due to dispersion is proportional to the product of the turn included angle and the Peclet number at low Peclet numbers. It is proportional to the square of the included angle and independent of the Peclet number when the Peclet number is large. A composite solution applicable to all Peclet numbers is constructed from these limiting behaviors. Numerical solutions for species transport in a turn are also presented over a wide range of the included angle and the mean turn radius. Based on comparisons between the analytical and numerical results, the authors find that the analytical solutions provide very good estimates of both dispersive and diffusive spreading provided that the mean turn radius exceeds the channel width. These new solutions also agree well with data from a previous study. Optimum conditions minimizing total spreading in a turn are presented and discussed.
Date:
March 1, 2000
Creator:
Griffiths, S. K. & Nilson, R. H.
Object Type:
Report
System:
The UNT Digital Library
Bandwidth requirements for fine resolution squinted SAR
The conventional rule-of-thumb for Synthetic Aperture Radar is that an RF bandwidth of c/(2{rho}{sub r}) is required to image a scene at the desired slant-range resolution {rho}{sub r}, and perhaps a little more to account for window functions and sidelobe control. This formulation is based on the notion that the total bandwidth required is the same bandwidth that is required for a single pulse. What is neglected is that efficient processing of an entire synthetic aperture of pulses will often require different frequency content for each of the different pulses that makeup a synthetic aperture. Consequently, the total RF bandwidth required of a Synthetic Aperture Radar may then be substantially wider than the bandwidth of any single pulse. The actual RF bandwidth required depends strongly on flight geometry, owing to the desire for a radar to maintain a constant projection of the Fourier space collection surface onto the {omega}{sub y} axis. Long apertures required for fine azimuth resolution, and severe squint angles with steep depression angles may require total RF bandwidths well beyond the minimum bandwidth required of any single transmitted pulse, perhaps even by a factor of two or more. Accounting for this is crucial to designing efficient versatile …
Date:
March 1, 2000
Creator:
Doerry, Armin W.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 105, Ed. 1 Wednesday, March 1, 2000
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
March 1, 2000
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Beam Simulations for IRE and Driver-Status and Strategy
The methods and codes employed in the U.S. Heavy Ion Fusion program to simulate the beams in an Integrated Research Experiments (IRE) facility and a fusion driver are presented in overview. A new family of models incorporating accelerating module impedance, multi-beam, and self-magnetic effects is described, and initial WARP3d particle simulations of beams using these models are presented. Finally, plans for streamlining the machine-design simulation sequence, and for simulating beam dynamics from the source to the target in a consistent and comprehensive manner, are described.
Date:
March 1, 2000
Creator:
Friedman, A.; Grote, D. P.; Lee, E. P. & Sonnendrucker, E.
Object Type:
Article
System:
The UNT Digital Library
THE BIOTERRORISM THREAT: TECHNOLOGICAL AND POLITICAL CONSIDERATIONS
Bioterrorism--along with biowarfare, from which it may not always be distinguishable in practice--will be a feature of the strategic landscape in the 21st century and is high on the US national security agenda. Bioterrorism poses a potential threat to the US population, agriculture, interests, friends and allies, and military forces (asymmetric threats). Yet these possibilities have not been widely pursued or realized by terrorists. The perceived threat is far worse than anything experienced to date, and is largely technologically driven.
Date:
March 1, 2000
Creator:
PILAT, J. F.
Object Type:
Article
System:
The UNT Digital Library
Boerne Independent School District Focus (Boerne, Tex.), Vol. 1, No. 3, Ed. 1, March-May 2000
Quarterly newsletter from Boerne, Texas that includes news and information about the Boerne Independent School District.
Date:
2000-03/2000-05
Creator:
Gaston-Camarigg, Julia
Object Type:
Newspaper
System:
The Portal to Texas History
Border Business Indicators, Volume 24, Number 3, March 2000
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:
March 2000
Creator:
Texas Center for Border Economic and Enterprise Development
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
BUILDING TRIBAL CAPABILITIES IN ENERGY AND ENVIRONMENTAL MANAGEMENT
The following activities were completed by the end of the quarter: (1) The CERT Executive Director invited a cross section of CERT member Tribes to participate in the project. By the end of the quarter, three Tribes had the invitation under active consideration, four Tribes expressed interest but wanted to see the detailed workplan prior to making a final decision and one Tribe, the Navajo Nation has accepted the invitation. (2) The CERT Board of Directors Executive Committee has endorsed two significant environmental policy priorities for consideration in the project. First, how does the federal Indian trust responsibility to land and natural resources as well as for the health, safety and political integrity of Indian Tribes affect the federal responsibility for facility cleanup and other statutory mandates under federal environmental statutes? And second, What are the protocols of government-to-government relations within a federal system of shared sovereignty and shared governmental responsibilities? And the corollaries to that question, What is the federal obligation for consultation with Tribes and how is that different and similar to consultation with states? And, What is the federal obligation to work cooperatively with Tribes and states in recognition of the three sovereigns of the American federal …
Date:
March 1, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Calculations of the response of shielded detectors to gamma rays at MeV-range energies
Nuclear instruments designed to detect gamma rays at energies from 0.1 to 10 MeV respond primarily to the electrons produced by gamma-ray scattering and absorption in either the instrument itself or in the surrounding materials. Although tabulated attenuation coefficients are very useful for estimating macroscopic quantities such as bulk energy depositions, such quantities are averages over several different phenomena at the microscopic level. For detectors with active elements that are thin compared with an electron range, the competing effects of inscattering and outscattering result in complicated responses, as evidenced by the strong energy dependence of the resulting pulse-height spectra. Thus, for some applications the macroscopic averages are entirely sufficient, but for others a full microscopic analysis is needed. The author first reviews the literature on the responses of several types of detectors to gamma rays at energies below 10 MeV, and then they use a series of simple Monte Carlo calculations to illustrate the important physics issues. These simple calculations are followed by thorough studies of the energy and angle responses of two proposed instruments, including their responses to instantaneous pulses of large numbers of simultaneous incident photons.
Date:
March 1, 2000
Creator:
Byrd, R. C.
Object Type:
Report
System:
The UNT Digital Library
Calibration and Data Analysis for the KCIF Fast Magnetics System
Alfven Eigenmodes (AEs) and other magnetohydrodynamic (MHD) phenomena have been studied at the Joint European Torus (JET) using a new 8-channel, 4 s, 1 MHz, 12-bit data acquisition system KC1F in conjunction with the JET fast Mirnov magnetic fluctuation pickup coils. The JET magnetic pickup coils were calibrated for the first time in the range 30-460 kHz using a new remote calibration technique which accounts for the presence of the first few LRC circuit resonances. A data-processing system has been developed within the MATLAB software environment to produce spectrograms of fluctuation amplitude and toroidal mode number versus frequency and time. The analysis software has been automated to allow routine overnight production of spectrogram web pages. Modes with amplitudes {delta}B/B {ge} 10{sup -8} and toroidal mode numbers |n| < 32 are now routinely detected. A pulse-characterization database has also been developed to select for the analysis of various useful subsets of the 4000+ JET discharges for which KC1F data is now available. Based on the work presented here and recent advances in data-acquisition technology, it should now be possible to obtain complete diagnostic data on the AEs.
Date:
March 2000
Creator:
Heeter, R. F.; Fasoli, A. F.; Ali-Arshad, A. S. & Moret, J. M.
Object Type:
Report
System:
The UNT Digital Library
CARBON BLACK STRUCTURE AND ASSOCIATIONS IN FILLED RUBBER ASSESSED BY SMALL-ANGLE NEUTRON SCATTERING AND CONTRAST VARIATION
None
Date:
March 1, 2000
Creator:
Hjelm, R.P.
Object Type:
Article
System:
The UNT Digital Library
Carbon Dioxide Information Analysis Center, Fiscal Year 1999 Annual Report
None
Date:
March 1, 2000
Creator:
Cushman, R. M.; Boden, T. A.; Hook, L. A.; Jones, S. B.; Nelson, T. R. & Burtis, M. D.
Object Type:
Report
System:
The UNT Digital Library
Catalog of Lamar Institute of Technology, 2000-2001
Catalog of courses offered by the Lamar Institute of Technology for the year 2000-2001, as well as general information about the university, programs, and policies, along with an admissions form.
Date:
March 2000
Creator:
Lamar Institute of Technology
Object Type:
Book
System:
The Portal to Texas History
CERTS customer adoption model
This effort represents a contribution to the wider distributed energy resources (DER) research of the Consortium for Electric Reliability Technology Solutions (CERTS, http://certs.lbl.gov) that is intended to attack and, hopefully, resolve the technical barriers to DER adoption, particularly those that are unlikely to be of high priority to individual equipment vendors. The longer term goal of the Berkeley Lab effort is to guide the wider technical research towards the key technical problems by forecasting some likely patterns of DER adoption. In sharp contrast to traditional electricity utility planning, this work takes a customer-centric approach and focuses on DER adoption decision making at, what we currently think of as, the customer level. This study reports on Berkeley Lab's second year effort (completed in Federal fiscal year 2000, FY00) of a project aimed to anticipate patterns of customer adoption of distributed energy resources (DER). Marnay, et al., 2000 describes the earlier FY99 Berkeley Lab work. The results presented herein are not intended to represent definitive economic analyses of possible DER projects by any means. The paucity of data available and the importance of excluded factors, such as environmental implications, are simply too important to make such an analysis possible at this time. …
Date:
March 1, 2000
Creator:
Rubio, F. Javier; Siddiqui, Afzal S.; Marnay, Chris & Hamachi,Kristina S.
Object Type:
Report
System:
The UNT Digital Library