Military and Civilian Satellites in Support of Allied Forces in the Persian Gulf War (open access)

Military and Civilian Satellites in Support of Allied Forces in the Persian Gulf War

This Congressional Research Service Report for Congress explains the use of military and civilian space programs to advance satellites for the support of military action.
Date: February 27, 1991
Creator: Smith, Marcia S.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 23, Number 9, Pages 1741-2187, February 27, 1998 (open access)

Texas Register, Volume 23, Number 9, Pages 1741-2187, February 27, 1998

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: February 27, 1998
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 21, Number 15, Part II, Pages 1526-1631, February 27, 1996 (open access)

Texas Register, Volume 21, Number 15, Part II, Pages 1526-1631, February 27, 1996

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: February 27, 1996
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 21, Number 15, Part I, Pages 1421-1524, February 27, 1996 (open access)

Texas Register, Volume 21, Number 15, Part I, Pages 1421-1524, February 27, 1996

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: February 27, 1996
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 16, Pages 1037-1119, February 27, 1990 (open access)

Texas Register, Volume 15, Number 16, Pages 1037-1119, February 27, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: February 27, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: DM-6 (open access)

Texas Attorney General Opinion: DM-6

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification; Whether release of census counts subject to possible adjustment constitutes publication of the United States decennial census for purposes of article III, section 28, of the Texas Constitution and related questions (RQ-24)
Date: February 27, 1991
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: DM-7 (open access)

Texas Attorney General Opinion: DM-7

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification; Whether the Parker County Committee on Aging is a governmental body under the Open Meetings Act, article 6252-17, V.T.C.S. (RQ-6)
Date: February 27, 1991
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Robust controller design of four wheel steering systems using mu synthesis techniques (open access)

Robust controller design of four wheel steering systems using mu synthesis techniques

In this paper, a linearized four wheel steering (4WS) system model is deduced and then modified into a form which is appropriate for applying Matlab {mu} Toolbox to design robust controller. Several important topics are discussed in detail, such as (1) how to make system set-up match Matlab {mu} Toolbox requirement, (2) how to select weights based on plant`s uncertainty, (3) how to solve controller discretization problem, and (4) how to adjust the system so that the conditions necessary for using a state-space formula to solve H{infinity} optimal (sub-optimal) problem and performing the Matlab {mu} Toolbox D--K iteration procedure are satisfied. Finally simulation results of robust controller and a PID controller are compared.
Date: February 27, 1995
Creator: Gao, X.; McVey, B. D. & Tokar, R. L.
Object Type: Article
System: The UNT Digital Library
Reactivation of an Idle Lease to Increase Heavy Oil Recovery through Application of Conventional Steam Drive Technology in a Low Dip Slope and Basin Reservoir in the Midway-Sunset Field, San Jaoquin Basin, California (open access)

Reactivation of an Idle Lease to Increase Heavy Oil Recovery through Application of Conventional Steam Drive Technology in a Low Dip Slope and Basin Reservoir in the Midway-Sunset Field, San Jaoquin Basin, California

A previously idle portion of the Midway-Sunset field, the ARCO Western Energy Pru Fee property, is being brought back into commercial production through tight integration of geologic characterization, geostatistical modeling, reservoir simulation, and petroleum engineering. This property, shut-in over a decade ago as economically marginal using conventional cyclic steaming methods, has a 200-300 foot thick oil column in the Monarch Sand. However, the sand lacks effective steam barriers and has a thick water-saturation zone above the oil-water contact. These factors require an innovative approach to steam flood production design that will balance optimal total oil production against economically viable steam-oil ratios and production rates. The methods used in the Class III demonstration are accessible to most operators in the Midway-Sunset field and could be used to revitalize properties with declining production of heavy oils throughout the region. In January 1997 the project entered its second and main phase with the purpose of demonstrating whether steamflood can be a more effective mode of production of the heavy, viscous oils from the Monarch Sand reservoir than the more conventional cyclic steaming. The objective is not just to produce the pilot site within the Pru Fee property south of Taft, but to test …
Date: February 27, 1998
Creator: Schamel, Steven
Object Type: Report
System: The UNT Digital Library
Development and Testing of Industrial Scale Coal-Fired Combustion System, Phase 3 (open access)

Development and Testing of Industrial Scale Coal-Fired Combustion System, Phase 3

In the fourth quarter of calendar year 1996, 15 days of combust-boiler tests were performed, including 10 days of tests on a parallel DOE sponsored project on sulfur retention in a slagging combustor. Between tests, modifications and improvements that were indicated by these tests were implemented. This brings the total number of test days to the end of December in the task 5 effort to 57, increased to 65 as of the date of this Report, 1/27/97. This compares with a total of 63 test days needed to complete the task 5 test effort, and it completes the number of tests days required to meet the task 5 project plan. The key project objectives of the areas of combustor performance and environmental performance have been exceeded. With sorbent injection in the combustion gas train, NOX emissions as low as 0.07 lb/MMBtu and S02 emissions as low as 0.2 lb/MMBtu have been measured in tests in this quarter. Work in the next quarter will focus on even greater reductions in environmental emissions. Also tests are planned with coals other than the Eastern US bituminous coals tested in this project. For example, it is planned to tests Indian coals whose ash concentration …
Date: February 27, 1997
Creator: Zauderer, Bert
Object Type: Report
System: The UNT Digital Library
Engineered materials characterization report (EMCR) update draft for viability assessment (VA) (milestone WP20AM4) (open access)

Engineered materials characterization report (EMCR) update draft for viability assessment (VA) (milestone WP20AM4)

This report is submitted to satisfy the requirements of YMP Activity ID No. WP20AM4, Review/Finalize EMCR Update Draft for VA.
Date: February 27, 1998
Creator: Farmer, J. C., LLNL
Object Type: Report
System: The UNT Digital Library
Solute travel time in the vadose zone under RWMC at INEL (open access)

Solute travel time in the vadose zone under RWMC at INEL

Solute transport in the vadose zone under the Radioactive Waste Management Complex (RWMC) at the Idaho National Engineering Laboratory (INEL) is considered. The objective is to assess the relative importance of variables involved in modeling the travel time of a conservative solute from ground surface to water table. The vadose zone under RWMC is composed of several layers of basalt flows interceded with sediment layers. The thickness of the layers varies with location. The hydraulic properties also vary. The extents of the variations are large, with standard deviations exceed mean in some instances. The vadose zone is idealized as composed of horizontal layers. Solute transport starts at the ground surface and moves vertically downwards to the water table. The perceived process is one-dimensional. This study used VS2DT, a computer code developed by the US Geological Survey, for simulating solute transport in variably saturated porous media.
Date: February 27, 1995
Creator: Liou, J. C. P. & Tian, J.
Object Type: Report
System: The UNT Digital Library
Reverse VSP and crosswell seismic imaging at the Savannah River Site (open access)

Reverse VSP and crosswell seismic imaging at the Savannah River Site

Analysis of crosswell and three-component seismic data integrated with well logs have produced information on the distribution of subsurface heterogeneities below the In-Tank Precipitation facility at the Savannah River Site (SRS). The travel time P-wave tomogram and reflection imaging delineate lateral and vertical structural details of the formations. In particular, the high-resolution P-wave tomogram captures a low-velocity zone within the carbonates. This zone is surrounded by reflection events between depths of 150 and 200 ft. in the reflection imaging. The reflections are caused by the acoustic impedance contrast between the low velocity zone of `soupy` sand mixtures of unconsolidated materials and the more rigid and dense competent surrounded medium. The time-frequency analysis of full waveforms particle velocity identifies guided waves in form of leaky and normal modes at the depths of about 138 to 150 ft. This resulting change in lithology associated with the presence of guided waves is consistent with a velocity low observed in the vertical velocity profile determined from the inversion of three-component seismic data. This low-velocity zone intercepted by the wells H-BOR-34 and H-BOR-50 correlates with the conductive Griffins Landing Member, which is located above the carbonates. The result of the experiments demonstrate that the present …
Date: February 27, 1996
Creator: Cumbest, R.J.; Parra, J.O.; Zook, B.J.; Addington, C. & Price, V.
Object Type: Article
System: The UNT Digital Library
An Integrated Study of the Grayberg/San andres Reservoir, Foster and South Cowden Fields, Ector County, Texas (open access)

An Integrated Study of the Grayberg/San andres Reservoir, Foster and South Cowden Fields, Ector County, Texas

The characteristics of seismic- derived porosity maps have been further qualified by geologic and production relationships not previously explained nor their significance recognized. Patterns of seismic- derived porosity in the upper Grayburg compare accurately to geologic well data and to historic oil production in section 36. Areas of economic reservoir seem to be separated hydrodynamically, based on the porosity distribution and related differences of gas- to- oil ratio values. Porosity values east of the current limit of the seismic inversion model (where the current seismic data quality is poor) have been estimated for the Grayburg zones, to be used in the next production model run. Production data for that area are being requested from offset operators. When those data become available, they will be included in a revised engineering model will be made to match the production history and to simulate the effect of waterflood efforts. The mapping of porosity of the upper Grayburg zones from the seismic data was completed during the third quarter of 1997, with further qualification of the results done during the fourth quarter. The cross- plots of well log- determined porosity versus seismic velocity have shown a strong linear relationship useful for calibrating the conversion …
Date: February 27, 1997
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Special properties of optical parametric oscillators (open access)

Special properties of optical parametric oscillators

Optical parametric oscillators (OPOS) are useful devices to generate tunable radiation. The tuning characteristics of OPOs can lead to their utility in remote sensing applications. We have investigated injection-seeded OPOs to generate narrow-band Mid-JR radiation for this purpose. OPOs exhibit a resonance structure similar to that of a laser`s cavity limiting the frequency choices available. Also, the coupling of the electric fields of the three interacting waves can generate cavity resonances for OPOs which have no cold cavity resonances (i.e. non-resonant OPOS). The potential for generating multiple frequencies simultaneously from a single OPO is discussed. The generation of multiple output frequencies is accomplished by injecting either multiple signal or multiple pump frequencies to the OPO. A seeded SRO is found to be well-suited to generating spectrally pure and stable multi-line output when the input pump field is multiple frequency. The generation of sideband frequencies during multiple seeding is also observed experimentally and addressed theoretically. The spectral purity of the OPO output is related to the frequency separation of the multi-line input as compared to the OPO cavity resonance structure.
Date: February 27, 1996
Creator: Neuman, W.A. & Velski, S.P.
Object Type: Article
System: The UNT Digital Library
Low sample volume part-per billion level ion chromatographic analysis (open access)

Low sample volume part-per billion level ion chromatographic analysis

ADS has developed an ion chromatographic method which enables low part-per-billion levels of analysis while minimizing liquid waste generation. This method incorporates several recent technical improvements in ion chromatographic instrumentation to achieve a ten- fold increase in sensitivity over existing ion chromatographic methods without additional analysis time or sample pre-concentration. This report outlines the method, establishes the precision and accuracy levels, and discusses the applicability of the method to waste minimization and radiation exposure reduction
Date: February 27, 1996
Creator: Ekechukwu, A.A.
Object Type: Report
System: The UNT Digital Library
Evaluating the importance of innovative heterogeneous chemistry to explain observed stratospheric ozone depletion (open access)

Evaluating the importance of innovative heterogeneous chemistry to explain observed stratospheric ozone depletion

Currently, there is a widespread search for additional heterogeneous reactions or combination of heterogeneous and homogeneous (gas-phase) reactions that could catalytically reduce ozone to observed levels. In 1992, Burley and Johnston proposed that nitrosyl sulfuric acid (NSA) NOHSO{sub 4}, is a promising heterogeneous reactant for activating HCl in sulfuric acid particles. They list several sources for producing it in the stratosphere and they carried out thermodynamic and chemical kinetic calculations at one stratospheric altitude and at one latitude. NSA has been overlooked in all previous stratospheric model calculations, even though it has been observed in stratospheric sulfate aerosols. This study makes large scale atmospheric model calculations to test the proposal by Burley and Johnston that a promising heterogeneous process for activating HCl in sulfuric acid particles is a catalytic coupled based on nitrosyl sulfuric acid (NSA). This mechanism is examined under non-volcanic and volcanic conditions representative of the recent eruption of Mt. Pinatubo. The calculations set firm limits on the range of kinetic parameters over which this heterogeneous processes would be important in the global ozone balance, and thus is a guide for where laboratory work is needed. In addition, they have derived a preliminary time-dependent integration (1980--1994) to represent …
Date: February 27, 1996
Creator: Kinnison, D. E. & Connell, P. S.
Object Type: Report
System: The UNT Digital Library
Mutual reciprocal inspections: Issues regarding next steps (open access)

Mutual reciprocal inspections: Issues regarding next steps

Pressures are mounting for a regime to verify the dismantlement of US and Russian warheads, as well as a system of international control over the weapons` fissile materials to assure irreversibility. There are at least four motivating factors for these measures: (1) as the United States and Russia lower their numbers of nuclear weapons, each side seeks assurance that the warheads are actually being dismantled; (2) by accounting for the fissile materials and placing them under effective controls, the potential for smuggling and theft is reduced; (3) a fissile materials cutoff is being discussed at the Conference on Disarmament in Geneva; verification of a US-Russian cutoff, as well as substantial reductions in fissile materials stockpiles, are seen as integral to the cutoff; (4) calls for total nuclear disarmament have greatly increased; dismantlement verification and international control of fissile materials are widely viewed as requisite steps toward this goal. There are many questions to be answered before the United States can agree to a warhead verification regime and international control over excess fissile materials, let alone total nuclear disarmament. Two of the most important are: What are the prospects for effective verification? and How much fissile material can be declared as …
Date: February 27, 1996
Creator: Bailey, K. C.
Object Type: Article
System: The UNT Digital Library
Electrical test structures replicated in silicon-on-insulator material (open access)

Electrical test structures replicated in silicon-on-insulator material

Measurements of the linewidths of submicrometer features made by different metrology techniques have frequently been characterized by differences of up to 90 nm. The purpose of the work reported here is to address the special difficulties that this phenomenon presents to the certification of reference materials for the calibration of linewidth-measurement instruments. Accordingly, a new test structure has been designed, fabricated, and undergone preliminary tests. Its distinguishing characteristics are assured cross-sectional profile geometries with known side-wall slopes, surface planarity, and compositional uniformity when it is formed in mono-crystalline material at selected orientations to the crystal lattice. To allow the extraction of electrical linewidth, the structure is replicated in a silicon film of uniform conductivity which is separated from the silicon substrate by a buried oxide layer. The utilization of a Silicon-On-Insulator (SKI) substrate further allows the selective removal of substrate material from local regions below the reference features, thus facilitating measurements by optical and electron-beam transmission microscopy. The combination of planar feature surfaces having known side-wall slopes is anticipated to eliminate factors which are believed to be responsible for methods divergence in linewidth measurements, a capability which is a prerequisite for reliable certification of the linewidths of features on reference …
Date: February 27, 1996
Creator: Cresswell, M. W.; Ghoshtagore, R. N.; Allen, R. A.; Linholm, L. W.; Villarrubia, J. S. & Sniegowski, J. J.
Object Type: Report
System: The UNT Digital Library
TCP performance in ATM networks: ABR parameter tuning and ABR/UBR comparisons (open access)

TCP performance in ATM networks: ABR parameter tuning and ABR/UBR comparisons

This paper explores two issues on TOP performance over ATM networks: ABR parameter tuning and performance comparison of binary mode ABR with enhanced UBR services. Of the fifteen parameters defined for ABR, two parameters dominate binary mode ABR performance: Rate Increase Factor (RIF) and Rate Decrease Factor (RDF). Using simulations, we study the effects of these two parameters on TOP over ABR performance. We compare TOP performance with different ABR parameter settings in terms of through-puts and fairness. The effects of different buffer sizes and LAN/WAN distances are also examined. We then compare TOP performance with the best ABR parameter setting with corresponding UBR service enhanced with Early Packet Discard and also with a fair buffer allocation scheme. The results show that TOP performance over binary mode ABR is very sensitive to parameter value settings, and that a poor choice of parameters can result in ABR performance worse than that of the much less expensive UBR-EPD scheme.
Date: February 27, 1996
Creator: Chien Fang & Lin, A.
Object Type: Article
System: The UNT Digital Library
Tank farms backlog soil sample and analysis results supporting a contained-in determination (open access)

Tank farms backlog soil sample and analysis results supporting a contained-in determination

Soil waste is generated from Tank Farms and associated Tank Farms facilities operations. The soil is a mixed waste because it is an environmental media which contains tank waste, a listed mixed waste. The soil is designated with the listed waste codes (FOO1 through F005) which have been applied to all tank wastes. The scope of this report includes Tank Farms soil managed under the Backlog program. The Backlog Tank Farm soil in storage consists of drums and 5 boxes (originally 828 drums). The Backlog Waste Program dealt with 2276 containers of solid waste generated by Tank Farms operations during the time period from 1989 through early 1993. The containers were mismanaged by being left in the field for an extended period of time without being placed into permitted storage. As a corrective action for this situation, these containers were placed in interim storage at the Central Waste Complex (CWC) pending additional characterization. The Backlog Waste Analysis Plan (BWAP) (RL 1993) was written to define how Backlog wastes would be evaluated for proper designation and storage. The BWAP was approved in August 1993 and all work required by the BWAP was completed by July 1994. This document presents results of …
Date: February 27, 1997
Creator: Jackson, C.L., Fluor Daniel Hanford
Object Type: Report
System: The UNT Digital Library
Acceptance test report for the mobile color camera system (open access)

Acceptance test report for the mobile color camera system

The purpose of this report is to present test data recorded during acceptance testing of the Mobile Color Camera System (MCCS).
Date: February 27, 1997
Creator: Castleberry, J.L., Fluor Daniel Hanford
Object Type: Report
System: The UNT Digital Library
QUEST2: Release 1, SA/Release 1 supporting documents deliverable set (open access)

QUEST2: Release 1, SA/Release 1 supporting documents deliverable set

This document contains deliverables which reflect the last of the System Architecture phase analysis for the Quality, Environmental, Safety Tracking System redesign (QUEST2) project. These deliverables are focused on the final insights required to start functional design of the first QUEST2 release. They include the data definitions, conversion rules, standards for design and user interface, performance criteria, and rules to be followed during the prototyping activity described in the Project Management Plan.
Date: February 27, 1995
Creator: Braaten, F.D.
Object Type: Report
System: The UNT Digital Library
WRAP process area development control work plan (open access)

WRAP process area development control work plan

This work plan defines the manner in which the Waste Receiving and Processing Facility, Module I Process Area will be maintained under development control status. This status permits resolution of identified design discrepancies, control system changes, as-building of equipment, and perform modifications to increase process operability and maintainability as parallel efforts. This work plan maintains configuration control as these efforts are undertaken. This task will end with system testing and reissue of field verified design drawings.
Date: February 27, 1997
Creator: Leist, K.L., Fluor Daniel Hanford
Object Type: Report
System: The UNT Digital Library