Active polarimeter optical system laser hazard analysis. (open access)

Active polarimeter optical system laser hazard analysis.

A laser hazard analysis was performed for the SNL Active Polarimeter Optical System based on the ANSI Standard Z136.1-2000, American National Standard for Safe Use of Lasers and the ANSI Standard Z136.6-2000, American National Standard for Safe Use of Lasers Outdoors. The Active Polarimeter Optical System (APOS) uses a pulsed, near-infrared, chromium doped lithium strontium aluminum fluoride (Cr:LiSAF) crystal laser in conjunction with a holographic diffuser and lens to illuminate a scene of interest. The APOS is intended for outdoor operations. The system is mounted on a height adjustable platform (6 feet to 40 feet) and sits atop a tripod that points the beam downward. The beam can be pointed from nadir to as much as 60 degrees off of nadir producing an illuminating spot geometry that can vary from circular (at nadir) to elliptical in shape (off of nadir). The JP Innovations crystal Cr:LiSAF laser parameters are presented in section II. The illuminating laser spot size is variable and can be adjusted by adjusting the separation distance between the lens and the holographic diffuser. The system is adjusted while platform is at the lowest level. The laser spot is adjusted for a particular spot size at a particular distance …
Date: July 1, 2005
Creator: Augustoni, Arnold L.
Object Type: Report
System: The UNT Digital Library
Activity Visit Trip Report - Ft. Belvoir - Prime Power School - VA (open access)

Activity Visit Trip Report - Ft. Belvoir - Prime Power School - VA

Activity Visit Trip Report - Ft. Belvoir - Prime Power School - VA
Date: July 30, 2005
Creator: United States. Defense Base Closure and Realignment Commission.
Object Type: Book
System: The UNT Digital Library
Adaptive Management and Planning Models for Cultural Resources in Oil & Gas Fields in New Mexico and Wyoming, Semi-Annual Progress Report: January 1 - June 30, 2005 (open access)

Adaptive Management and Planning Models for Cultural Resources in Oil & Gas Fields in New Mexico and Wyoming, Semi-Annual Progress Report: January 1 - June 30, 2005

This report summarizes activities that have taken place in the last six (6) months (January 2005-June 2005) under the DOE-NETL cooperative agreement ''Adaptive Management and Planning Models for Cultural Resources in Oil and Gas Fields, New Mexico and Wyoming'' DE-FC26-02NT15445. This project examines the practices and results of cultural resource investigation and management in two different oil and gas producing areas of the United States: southeastern New Mexico and the Powder River Basin of Wyoming. The project evaluates how cultural resource investigations have been conducted in the past and considers how investigation and management could be pursued differently in the future. The study relies upon full database population for cultural resource inventories and resources and geomorphological studies. These are the basis for analysis of cultural resource occurrence, strategies for finding and evaluating cultural resources, and recommendations for future management practices. Activities can be summarized as occurring in either Wyoming or New Mexico. Gnomon as project lead, worked in both areas.
Date: July 1, 2005
Creator: Robinson, Peggy
Object Type: Report
System: The UNT Digital Library
Additional Information on Air National Guard Recommendations (Training) (open access)

Additional Information on Air National Guard Recommendations (Training)

Department of Defense Clearinghouse Response: DoD Clearinghouse response to an e-mail from the BRAC Commission requesting additional information on Air National Guard Recommendations (trianing).
Date: July 20, 2005
Creator: United States. Department of Defense.
Object Type: Text
System: The UNT Digital Library
Advanced 0.3-NA EUV lithography capabilities at the ALS (open access)

Advanced 0.3-NA EUV lithography capabilities at the ALS

For volume nanoelectronics production using Extreme ultraviolet (EUV) lithography [1] to become a reality around the year 2011, advanced EUV research tools are required today. Microfield exposure tools have played a vital role in the early development of EUV lithography [2-4] concentrating on numerical apertures (NA) of 0.2 and smaller. Expected to enter production at the 32-nm node with NAs of 0.25, EUV can no longer rely on these early research tools to provide relevant learning. To overcome this problem, a new generation of microfield exposure tools, operating at an NA of 0.3 have been developed [5-8]. Like their predecessors, these tools trade off field size and speed for greatly reduced complexity. One of these tools is implemented at Lawrence Berkeley National Laboratory's Advanced Light Source synchrotron radiation facility. This tool gets around the problem of the intrinsically high coherence of the synchrotron source [9,10] by using an active illuminator scheme [11]. Here we describe recent printing results obtained from the Berkeley EUV exposure tool. Limited by the availability of ultra-high resolution chemically amplified resists, present resolution limits are approximately 32 nm for equal lines and spaces and 27 nm for semi-isolated lines.
Date: July 7, 2005
Creator: Naulleau, Patrick; Anderson, Erik; Dean, Kim; Denham, Paul; Goldberg, Kenneth A.; Hoef, Brian et al.
Object Type: Article
System: The UNT Digital Library
Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants (open access)

Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants

During this quarter catalyst stability studies were performed on Eltron's composite layered membranes. In addition, permeation experiments were performed to determine the effect of crystallographic orientation on membrane performance. Sintering conditions were optimized for preparation of new cermets containing high permeability metals. Theoretical calculations were performed to determine potential sulfur tolerant catalysts. Finally, work was continued on mechanical and process & control documentation for a hydrogen separation unit.
Date: July 29, 2005
Creator: Evenson, Carl R.; Sammells, Anthony F.; Treglio, Richard T.; Calihman, Adam E.; Balachandran, U.; Kleiner, Richard N. et al.
Object Type: Report
System: The UNT Digital Library
ADVANCED OXYFUEL BOILERS AND PROCESS HEATERS FOR COST EFFECTIVE CO2 CAPTURE AND SEQUESTRATION (open access)

ADVANCED OXYFUEL BOILERS AND PROCESS HEATERS FOR COST EFFECTIVE CO2 CAPTURE AND SEQUESTRATION

This annual technical progress report summarizes the work accomplished during the third year of the program, January-December 2004, in the following task areas: Task 1--Conceptual Design, Task 2--Laboratory Scale Evaluations, Task 3--OTM Development, Task 4--Economic Evaluation and Commercialization Planning and Task 5--Program Management. The groundwork was laid for both the membrane materials development and the construction of the required facilities for testing the membrane reliability and performance. It has resulted in the construction of a single tube and multi-tube combustion test facility. Design for Six Sigma (DFSS) principles were applied to the membrane material selection process. The required ceramic powders were ordered and will be evaluated in 2005. Design of experiment techniques (fuel gas mixture design) were applied to the membrane performance evaluation process. The first results indicate that the oxygen flux of the membrane is significantly higher when the porous support is exposed to the fuel gas mixture instead of air. Failures of the oxygen transport membrane tube did not occur during the reporting period which is supporting evidence that our emphasis on design for robustness is yielding the desired result. All work on the project was performed in a safe manner as proven by zero recordable injuries or …
Date: July 1, 2005
Creator: Hassel, Bart van & Sirman, John
Object Type: Report
System: The UNT Digital Library
The Advanced Technology Program (open access)

The Advanced Technology Program

This report summarizes the Advanced Technology Program (ATP) and its creation. According to the report, the ATP was created to insure competitive technologies with broad applications throughout multiple industries. The report also covers information surrounding the budget of the program and its funding.
Date: July 6, 2005
Creator: Schacht, Wendy H.
Object Type: Report
System: The UNT Digital Library
The Advanced Technology Program (open access)

The Advanced Technology Program

The Advanced Technology Program (ATP) was created by P.L. 100-418, the Omnibus Trade and Competitiveness Act of 1988, to encourage public-private cooperation in the development of pre-competitive technologies with broad application across industries. This activity has been targeted for elimination as a means to cut federal spending. Since FY2000, the original House-passed appropriation bills have not included funding for ATP. Many of the Administration’s budget requests have proposed termination of the program. However, ATP continues to be supported, although at levels below that achieved in FY1995 when the activity was expanded significantly. This report discusses funding (or lack thereof) appropriated for the ATP for FY2006.
Date: July 6, 2005
Creator: Schacht, Wendy H.
Object Type: Report
System: The UNT Digital Library
Advancements in time-resolved x-ray laser induced time-of-flight photoelectron spectroscopy (open access)

Advancements in time-resolved x-ray laser induced time-of-flight photoelectron spectroscopy

Time-resolved soft x-ray photoelectron spectroscopy is used to probe the non-steady-state evolution of the valence band electronic structure of laser heated ultra-thin (50 nm) metal foils and bulk semiconductors. Single-shot soft x-ray laser induced time-of-flight photoelectron spectroscopy with picosecond time resolution was used in combination with optical measurements of the disassembly dynamics that have shown the existence of a metastable liquid phase in fs-laser heated metal foils persisting 4-5 ps. This metastable phase is studied using a 527 nm wavelength 400 fs laser pulse containing 0.3-2.5 mJ laser energy focused in a large 500 x 700 {micro}m{sup 2} spot to create heated conditions of 0.2-1.8 x 10{sup 12} W cm{sup -2} intensity. The unique LLNL COMET compact tabletop soft x-ray laser source provided the necessary high photon flux, highly monoenergetic, picosecond pulse duration, and coherence for observing the evolution of changes in the valence band electronic structure of laser heated metals and semiconductors with picosecond time resolution. This work demonstrates the continuing development of a powerful new technique for probing reaction dynamics and changes of local order on surfaces on their fundamental timescales including phenomena such as non-thermal melting, chemical bond formation, intermediate reaction steps, and the existence of transient …
Date: July 28, 2005
Creator: Nelson, A J; Dunn, J; Widmann, K; Ao, T; Ping, Y; Hunter, J et al.
Object Type: Article
System: The UNT Digital Library
Advancing Usability Evaluation through Human Reliability Analysis (open access)

Advancing Usability Evaluation through Human Reliability Analysis

This paper introduces a novel augmentation to the current heuristic usability evaluation methodology. The SPAR-H human reliability analysis method was developed for categorizing human performance in nuclear power plants. Despite the specialized use of SPAR-H for safety critical scenarios, the method also holds promise for use in commercial off-the-shelf software usability evaluations. The SPAR-H method shares task analysis underpinnings with human-computer interaction, and it can be easily adapted to incorporate usability heuristics as performance shaping factors. By assigning probabilistic modifiers to heuristics, it is possible to arrive at the usability error probability (UEP). This UEP is not a literal probability of error but nonetheless provides a quantitative basis to heuristic evaluation. When combined with a consequence matrix for usability errors, this method affords ready prioritization of usability issues.
Date: July 1, 2005
Creator: Boring, Ronald L. & Gertman, David I.
Object Type: Article
System: The UNT Digital Library
The Advocate, Volume 10, Issue 3, July-September 2005 (open access)

The Advocate, Volume 10, Issue 3, July-September 2005

Quarterly update providing information on environmental regulations for small businesses and local governments in Texas.
Date: July 2005
Creator: Texas Commission on Environmental Quality
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Aerosol organic carbon to black carbon ratios: Analysis ofpublished data and implications for climate forcing (open access)

Aerosol organic carbon to black carbon ratios: Analysis ofpublished data and implications for climate forcing

Measurements of organic carbon (OC) and black carbon (BC)concentrations over a variety of locations worldwide, have been analyzed to infer the spatial distributions of the ratios of OC to BC. Since these ratios determine the relative amounts of scattering and absorption, they are often used to estimate the radiative forcing due to aerosols. An artifact in the protocol for filter measurements of OC has led to widespread overestimates of the ratio of OC to BC in atmospheric aerosols. We developed a criterion to correct for this artifact and analyze corrected OC to BC ratios. The OC to BC ratios, ranging from 1.3to 2.4, appear relatively constant and are generally unaffected by seasonality, sources or technology changes, at the locations considered here. The ratios compare well with emission inventories over Europe and China but are a factor of two lower in other regions. The reduced estimate for OC/BC in aerosols strengthens the argument that reduction of soot emissions maybe a useful approach to slow global warming.
Date: July 11, 2005
Creator: Novakov, T.; Menon, S.; Kirchstetter, T.W.; Koch, D. & Hansen, J.E.
Object Type: Article
System: The UNT Digital Library
AF - Base Input - Air Force - Lackland Air Force Base - TX (open access)

AF - Base Input - Air Force - Lackland Air Force Base - TX

Unit Manpower Document AFNEWS
Date: July 21, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF - Community Briefing Air Force - Tyndall Air Force Base - FL (open access)

AF - Community Briefing Air Force - Tyndall Air Force Base - FL

MEETING SUMMARY: Large delegation from Bay County visited the BRAC Commission offices to express points about proposed BRAC Actions USAF - 55 and Med - 15.
Date: July 21, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF1 - Base Input Air Force - Pope Air Force Base - NC (open access)

AF1 - Base Input Air Force - Pope Air Force Base - NC

2005 Base Realignment and Closure Commission C-130J Update Brief - Col William P. Stewart 43 AW/CCJ
Date: July 22, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF25 - Base Input Air Force - Dyess Air Force Base - MS (open access)

AF25 - Base Input Air Force - Dyess Air Force Base - MS

Dyess Trip Booklet
Date: July 21, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF26A - Base Visit Book Air Force - Selfridge Air National Guard Base - MI (open access)

AF26A - Base Visit Book Air Force - Selfridge Air National Guard Base - MI

United States Army Gamson-Michigan provides installation management services for a joint military community at Detroit Arsenal and Selfridge Air National Guard Base to promote current and future readiness, well-being and retention.
Date: July 21, 2005
Creator: United States. Defense Base Closure and Realignment Commission.
Object Type: Book
System: The UNT Digital Library
AF26A - Base Visit Trip Report Air Force - Selfridge Air National Guard Base - MI (open access)

AF26A - Base Visit Trip Report Air Force - Selfridge Air National Guard Base - MI

United States Army Garrison-Michigan provides installation management services for a joint military community at Detroit Arsenal and Selfridge Air National Guard Base to promote current and future readiness, well-being and retention.
Date: July 21, 2005
Creator: United States. Defense Base Closure and Realignment Commission.
Object Type: Book
System: The UNT Digital Library
AF31 - Base Input Air Force - Ellsworth Air Force Base - SD (open access)

AF31 - Base Input Air Force - Ellsworth Air Force Base - SD

Airfield Pavements Ellsworth AFB
Date: July 21, 2005
Creator: United States. Defense Base Closure and Realignment Commission.
Object Type: Text
System: The UNT Digital Library
AF32 - Base Input - Air Force - Pittsburgh International Airport Air Reserve Station - PA (open access)

AF32 - Base Input - Air Force - Pittsburgh International Airport Air Reserve Station - PA

Title of Item: Map of 911th AW Drop Zones and Landing Zones
Date: July 22, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF32 - Base Input - Air Force - Pittsburgh International Airport Air Reserve Station - PA (open access)

AF32 - Base Input - Air Force - Pittsburgh International Airport Air Reserve Station - PA

Title of Item: Point Paper Pittsburgh IAP ARS Land Offer and MOA Property History
Date: July 22, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF32 - Community Input Air Force - Pittsburgh International Airport Air Reserve Station - PA (open access)

AF32 - Community Input Air Force - Pittsburgh International Airport Air Reserve Station - PA

Military Affairs Council of Western Pennsylvania PIT * BRAC Taskforce
Date: July 22, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
AF33 - Community Breifing Air Force - Hector International Airport - ND (open access)

AF33 - Community Breifing Air Force - Hector International Airport - ND

Community Breifing Air Force - Hector International Airport
Date: July 21, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library