Degree Department

36 Matching Results

Results open in a new window/tab.

78th Texas Legislature, Third Called Session, House Bill 23, Chapter 4 (open access)

78th Texas Legislature, Third Called Session, House Bill 23, Chapter 4

Bill introduced by the Texas House of Representatives relating to appropriating the fees relating to the office of patient protection collected by certain licensing agencies for the Health Professions Council under Chapter 305 (House Bill No. 2985), Acts of the 78th Legislature, Regular Session, 2003.
Date: October 13, 2003
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
78th Texas Legislature, Third Called Session, House Bill 29, Chapter 6 (open access)

78th Texas Legislature, Third Called Session, House Bill 29, Chapter 6

Bill introduced by the Texas House of Representatives relating to appropriating amounts received from the increase in the amount of lobby registration fees under Chapter 249, Acts of the 78th Legislature, Regular Session, 2003.
Date: October 13, 2003
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
78th Texas Legislature, Third Called Session, House Bill 3, Chapter 2 (open access)

78th Texas Legislature, Third Called Session, House Bill 3, Chapter 2

Bill introduced by the Texas House of Representatives relating to the composition of the districts for the election of members of the United States House of Representatives from the State of Texas.
Date: October 13, 2003
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
78th Texas Legislature, Third Called Session, House Bill 35, Chapter 7 (open access)

78th Texas Legislature, Third Called Session, House Bill 35, Chapter 7

Bill introduced by the Texas House of Representatives relating to the membership of the electric utility restructuring legislative oversight committee.
Date: October 13, 2003
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
78th Texas Legislature, Third Called Session, House Bill 7, Chapter 3 (open access)

78th Texas Legislature, Third Called Session, House Bill 7, Chapter 3

Bill introduced by the Texas House of Representatives relating to the reorganization of, efficiency in, and other reform measures applying to governmental entities and certain regulatory practices; providing a penalty.
Date: October 13, 2003
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
Block Matching for Object Tracking (open access)

Block Matching for Object Tracking

Models which describe road traffic patterns can be helpful in detection and/or prevention of uncommon and dangerous situations. Such models can be built by the use of motion detection algorithms applied to video data. Block matching is a standard technique for encoding motion in video compression algorithms. We explored the capabilities of the block matching algorithm when applied for object tracking. The goal of our experiments is two-fold: (1) to explore the abilities of the block matching algorithm on low resolution and low frame rate video and (2) to improve the motion detection performance by the use of different search techniques during the process of block matching. Our experiments showed that the block matching algorithm yields good object tracking results and can be used with high success on low resolution and low frame rate video data. We observed that different searching methods have small effect on the final results. In addition, we proposed a technique based on frame history, which successfully overcame false motion caused by small camera movements.
Date: October 13, 2003
Creator: Gyaourova, A; Kamath, C & Cheung, S
Object Type: Report
System: The UNT Digital Library
Stochastic Kinetic Monte Carlo algorithms for long-range Hamiltonians (open access)

Stochastic Kinetic Monte Carlo algorithms for long-range Hamiltonians

We present a higher order kinetic Monte Carlo methodology suitable to model the evolution of systems in which the transition rates are non- trivial to calculate or in which Monte Carlo moves are likely to be non- productive flicker events. The second order residence time algorithm first introduced by Athenes et al.[1] is rederived from the n-fold way algorithm of Bortz et al.[2] as a fully stochastic algorithm. The second order algorithm can be dynamically called when necessary to eliminate unproductive flickering between a metastable state and its neighbors. An algorithm combining elements of the first order and second order methods is shown to be more efficient, in terms of the number of rate calculations, than the first order or second order methods alone while remaining statistically identical. This efficiency is of prime importance when dealing with computationally expensive rate functions such as those arising from long- range Hamiltonians. Our algorithm has been developed for use when considering simulations of vacancy diffusion under the influence of elastic stress fields. We demonstrate the improved efficiency of the method over that of the n-fold way in simulations of vacancy diffusion in alloys. Our algorithm is seen to be an order of magnitude …
Date: October 13, 2003
Creator: Mason, D R; Rudd, R E & Sutton, A P
Object Type: Article
System: The UNT Digital Library
The National Ignition Facility: The World's Largest Laser (open access)

The National Ignition Facility: The World's Largest Laser

The National Ignition Facility (NIF), currently under construction at the Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8-Megajoule, 500-Terawatt, ultraviolet laser system together with a 10-meter diameter target chamber with room for nearly 100 experimental diagnostics. When completed, NIF will be the world's largest and most energetic laser experimental system, providing an international center to study inertial confinement fusion and the physics of matter at extreme energy densities and pressures. NIF's 192 energetic laser beams will compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. Other NIF experiments will allow the study of physical processes at temperatures approaching 10{sup 8} K and 10{sup 11} Bars, conditions that exist naturally only in the interior of stars, planets and in nuclear weapons. NIF has now completed the first phases of its laser commissioning program. The first four beams of NIF have generated 106 kilo-joules of infrared light, exceeding design requirements. Operation of single beams at the second harmonic (531 nm) and third harmonic (351 nm) at greater than 10 kilojoules have also exceeded the performance criteria. NIF's target experimental systems are being commissioned and experiments have begun. This …
Date: October 13, 2003
Creator: Moses, E I
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 319, Ed. 1 Monday, October 13, 2003 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 81, No. 319, Ed. 1 Monday, October 13, 2003

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: October 13, 2003
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
Long baseline neutrino oscillations: Parameter degeneracies and JHF/NuMI complementarity (open access)

Long baseline neutrino oscillations: Parameter degeneracies and JHF/NuMI complementarity

A summary of the parameter degeneracy issue for long baseline neutrino oscillations is presented and how a sequence of measurements can be used to resolve all degeneracies. Next, a comparison of the JHF and NuMI Off-Axis proposals is made with emphasis on how both experiments running neutrinos can distinguish between the normal and inverted hierarchies provided the E/L of NuMI is less than or equal to the E/L of JHF. Due to the space limitations of this proceedings only an executive style summary can be presented here, but the references and transparencies of the talk contain the detailed arguments.
Date: October 13, 2003
Creator: Parke, Stephen; Minakata, Hisakazu & Nunokawa, Hiroshi
Object Type: Article
System: The UNT Digital Library
Underlying event studies at CDF (open access)

Underlying event studies at CDF

We present recent studies about the ''underlying event'' which originates mostly from soft spectator interactions. First Run II data results are compared to published Run I results and to QCD Monte Carlo models.
Date: October 13, 2003
Creator: Lami, S.
Object Type: Article
System: The UNT Digital Library
Hydroacoustic Studies Using HydroCAM - Station-centric Integration of Models and Observations Quarterly Report No.4 July 2003 - September 2003 (open access)

Hydroacoustic Studies Using HydroCAM - Station-centric Integration of Models and Observations Quarterly Report No.4 July 2003 - September 2003

OAK B272 Quarterly technical report summarizing BBN's efforts to improve DOE's hydroacoustic modeling and analysis capability for nuclear explosion monitoring. BBN's work during the third quarter of 2003 was focused on preparations for and participation in the 2003 Seismic Research Review Meeting, unit testing and bug fixes to HydroCAM 4.1, data collection and analysis, and procuring high-resolution bathymetric data. In an attempt to save money, BBN scaled back its labor in the third quarter, delaying some deliverables but saving contract funding in case our next increment is delayed. We have succeeded in finding the correct Naval contact that can help us procure high-resolution bathymetry data. Although these data may require the release of a classified version of HydroCAM, we are optimistic that we will be able to acquire and integrate high-resolution bathymetric data near the Indian Ocean IMS stations. HydroCAM 4.1, which includes the ability to make blockage predictions using varying resolution bathymetric data, has completed unit testing and is now under integration (release) testing. We hope to deliver that functionality to DOE and AFTAC in November. BBN improved its database of hydroacoustic events in the Indian Ocean by including meta-data for associated arrivals. For each earthquake event, BBN is …
Date: October 13, 2003
Creator: Upton, Zachary, M. & Pulli, Jay, J.
Object Type: Report
System: The UNT Digital Library
Charm and beauty at the Tevatron (open access)

Charm and beauty at the Tevatron

The large heavy quark production cross section in p{bar p} collisions makes the Tevatron an excellent place to study charm and bottom physics. This allows for a rich program of spectroscopy, CP parameter measurements, and searches for new physics.
Date: October 13, 2003
Creator: Cranshaw, J.
Object Type: Article
System: The UNT Digital Library
["The New Face of Gay Power" article, October 13, 2003] (open access)

["The New Face of Gay Power" article, October 13, 2003]

An article, written by John Cloud for Time Magazine, about Cody, Wyoming five years after the murder of a young gay man named Matthew Shepard. It is one of the more liberal cities in the state and is also home to one of the Republican Unity Coalition's chairmen, Alan Simpson.
Date: October 13, 2003
Creator: Cloud, John
Object Type: Article
System: The UNT Digital Library
ERHIC INTERACTION REGION DESIGN. (open access)

ERHIC INTERACTION REGION DESIGN.

This paper presents the current interaction region design status of the ring-ring version of the electron-ion collider eRHIC (release 2.0).
Date: October 13, 2003
Creator: MONTAG,C. PARKER,B. PTITSYN,V. TEPIKIAN,S. WANG,D. WANG,F.
Object Type: Article
System: The UNT Digital Library
Data Summary for the Pre Survey Interim Status Closure of the Area 514 Facility (open access)

Data Summary for the Pre Survey Interim Status Closure of the Area 514 Facility

The purpose of this document is to summarize the data obtained from the sampling and analysis of selected locations in the Area 514 Facility. The objective of this document is to evaluate the data in a manner that will provide guidance for the final closure document. This guidance will assist in designing a sampling and analysis plan that will be efficient, cost effective and meet the criteria for acceptance by a independent state certified engineer for completion of the closure activity.
Date: October 13, 2003
Creator: Be Lue, A
Object Type: Report
System: The UNT Digital Library
Data Acquisition for Sns Beam Loss Monitor System (open access)

Data Acquisition for Sns Beam Loss Monitor System

The Spallation Neutron Source (SNS) beam loss monitor system uses VME based electronics to measure the radiation produced by lost beam. Beam loss signals from cylindrical argon-filled ion chambers and neutron detectors will be conditioned in analog front-end (AFE) circuitry. These signals will be digitized and further processed in a dedicated VME crate. Fast beam inhibit and low-level, long-term loss warnings will be generated to provide machine protection. The fast loss data will have a bandwidth of 35kHz. While the low level, long-term loss data will have much higher sensitivity. This is further complicated by the 3 decade range of intensity as the Ring accumulates beam. Therefore a bandwidth of 100kHz and dynamic range larger than 21 bits data acquisition system will be required for this purpose. Based on the evaluation of several commercial ADC modules in preliminary design phase, a 24 bits Sigma-Delta data acquisition VME bus card was chosen as the SNS BLM digitizer. An associated vxworks driver and EPICS device support module also have been developed at BNL. Simulating test results showed this system is fully qualified for both fast loss and low-level, long-term loss application. The first prototype including data acquisition hardware setup and EPICS software …
Date: October 13, 2003
Creator: Yeng, Y.; Gassner, D.; Hoff, L. & Witkover, R.
Object Type: Article
System: The UNT Digital Library
Testing and Quality Assurance of the Control System During NIF Commissioning (open access)

Testing and Quality Assurance of the Control System During NIF Commissioning

The strategy used to develop the National Ignition Facility Integrated Computer Control System (NIF ICCS) calls for incremental cycles of construction and formal test to deliver nearly one million lines of code. Software releases that implement specific functionality are approved for deployment when offline tests conducted in the ICCS Integration and Test Facility verify functional, performance and interface requirements using test procedures derived from system requirements. At this stage of the project the controls team has delivered approximately 3/4 of the planned software by performing dozens of development and test cycles within offline test facilities and followed by online tests to confirm integrated operation in the NIF. Test incidents are recorded and tracked from development to successful deployment by the verification team, with hardware and software changes approved by the appropriate change control board. Project metrics are generated by the Software Quality Assurance manager and monitored by ICCS management. Test results are summarized and reported to responsible individuals and Project managers under a work authorization and permit process that assesses risk and evaluates control system upgrade readiness. NIF is well into the first phases of its laser commissioning program to characterize and operate the first four laser beams and target …
Date: October 13, 2003
Creator: Casavant, D; Carey, R; Cline, B; Lagin, L; Ludwigsen, P; Reddi, U et al.
Object Type: Article
System: The UNT Digital Library
Status of the National Ignition Facility Integrated Computer Control System (open access)

Status of the National Ignition Facility Integrated Computer Control System

The National Ignition Facility (NIF), currently under construction at the Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8-Megajoule, 500-Terawatt, ultraviolet laser system together with a 10-meter diameter target chamber with room for nearly 100 experimental diagnostics. When completed, NIF will be the world's largest and most energetic laser experimental system, providing an international center to study inertial confinement fusion and the physics of matter at extreme energy densities and pressures. NIF's 192 energetic laser beams will compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. Laser hardware is modularized into line replaceable units such as deformable mirrors, amplifiers, and multi-function sensor packages that are operated by the Integrated Computer Control System (ICCS). ICCS is a layered architecture of 300 front-end processors attached to nearly 60,000 control points and coordinated by supervisor subsystems in the main control room. The functional subsystems--beam control including automatic beam alignment and wavefront correction, laser pulse generation and pre-amplification, diagnostics, pulse power, and timing--implement automated shot control, archive data, and support the actions of fourteen operators at graphic consoles. Object-oriented software development uses a mixed language environment of Ada (for functional controls) …
Date: October 13, 2003
Creator: Lagin, L.; Bryant, R.; Carey, R.; Casavant, D.; Edwards, O.; Ferguson, W. et al.
Object Type: Article
System: The UNT Digital Library
Huygens Integral Transformation for A 4x4 Ray Matrix (open access)

Huygens Integral Transformation for A 4x4 Ray Matrix

None
Date: October 13, 2003
Creator: Phillion, D
Object Type: Report
System: The UNT Digital Library
ANALOG I/O MODULE TEST SYSTEM BASED ON EPICS CA PROTOCOL AND ACTIVEX CA INTERFACE (open access)

ANALOG I/O MODULE TEST SYSTEM BASED ON EPICS CA PROTOCOL AND ACTIVEX CA INTERFACE

Analog input (ADC) and output (DAC) modules play a substantial role in device level control of accelerator and large experiment physics control system. In order to get the best performance some features of analog modules including linearity, accuracy, crosstalk, thermal drift and so on have to be evaluated during the preliminary design phase. Gain and offset error calibration and thermal drift compensation (if needed) may have to be done in the implementation phase as well. A natural technique for performing these tasks is to interface the analog VO modules and GPIB interface programmable test instruments with a computer, which can complete measurements or calibration automatically. A difficulty is that drivers of analog modules and test instruments usually work on totally different platforms (vxworks VS Windows). Developing new test routines and drivers for testing instruments under VxWorks (or any other RTOS) platform is not a good solution because such systems have relatively poor user interface and developing such software requires substantial effort. EPICS CA protocol and ActiveX CA interface provide another choice, a PC and LabVIEW based test system. Analog 110 module can be interfaced from LabVIEW test routines via ActiveX CA interface. Test instruments can be controlled via LabVIEW drivers, …
Date: October 13, 2003
Creator: Yeng,Y.
Object Type: Article
System: The UNT Digital Library
The National Ignition Facility: Status of the Integrated Computer Control System (open access)

The National Ignition Facility: Status of the Integrated Computer Control System

The National Ignition Facility (NIF), currently under construction at the Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8-Megajoule, 500-Terawatt, ultraviolet laser system together with a 10-meter diameter target chamber with room for nearly 100 experimental diagnostics. When completed, NIF will be the world's largest and most energetic laser experimental system, providing an international center to study inertial confinement fusion and the physics of matter at extreme energy densities and pressures. NIF's 192 energetic laser beams will compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. Laser hardware is modularized into line replaceable units such as deformable mirrors, amplifiers, and multi-function sensor packages that are operated by the Integrated Computer Control System (ICCS). ICCS is a layered architecture of 300 front-end processors attached to nearly 60,000 control points and coordinated by supervisor subsystems in the main control room. The functional subsystems--beam control including automatic beam alignment and wavefront correction, laser pulse generation and pre-amplification, diagnostics, pulse power, and timing--implement automated shot control, archive data, and support the actions of fourteen operators at graphic consoles. Object-oriented software development uses a mixed language environment of Ada (for functional controls) …
Date: October 13, 2003
Creator: Van Arsdall, P. J.; Bryant, R.; Carey, R.; Casavant, D.; Demaret, R.; Edwards, O. et al.
Object Type: Article
System: The UNT Digital Library
Position Estimation of Tranceivers in Communication Networks (open access)

Position Estimation of Tranceivers in Communication Networks

With the rapid development in wireless sensor networks, there is an important need for transceiver position estimation independent of Global Positioning Systems (GPS) [1,3]. While GPS might be useful for outdoor sensor nodes, it is not for indoor node localization. In this case, position estimation is possible through network range estimates from time-of-flight (TOF) measurements, a technique well suited to large bandwidth physical links, such as in ultra-wideband (UWB) communications. For example, in our UWB systems, with pulse duration less than 200 pico-seconds, range can easily be resolved to less than a foot. Assuming an encoded UWB or spread spectrum physical layer, we developed algorithms and simulation tools to test transceiver position localization. Simulations were designed to lend insight into system characteristics such as position error sensitivities to network geometry, to range estimation errors, and to number of sensor nodes.
Date: October 13, 2003
Creator: Kent, C. A. & Dowla, F. U.
Object Type: Report
System: The UNT Digital Library
Oral History Interview with Hugh Fuller, October 13, 2003 transcript

Oral History Interview with Hugh Fuller, October 13, 2003

The National Museum of the Pacific War presents an oral interview with Hugh Fuller. Fuller was born in Rogers, Texas 17 October 1924. He was drafted into the Army in 1942 and received his basic training at Camp Shelby, Mississippi. He recalls his time at boot camp and that he was assigned to the 69th Cavalry Reconnaissance Troop (Mechanized), 69th Infantry Division upon completion. During training at Fort Knox, Kentucky he recalls meeting and speaking with President Roosevelt. Fuller was sent to England shortly after the Allied landing on D-Day. He landed in France from an LST, and then marched into Belgium and Germany. He describes several of the reconnaissance missions carried out by his unit while assigned to the First Army, including some during the Battle of the Bulge. He recalls the day his unit arrived at Buchenwald Concentration Camp and he remembers the horrific conditions encountered. He describes several USO shows while in Germany. Following the end of the war, he embarked on a troop ship in Le Havre, France and sailed back to the US where he was discharged.
Date: October 13, 2003
Creator: Fuller, Hugh Robert
Object Type: Sound
System: The Portal to Texas History