Resource Type

Language

Accurate Synchronization Between Short Laser Pulse and Electron Bunch by Using HGHG Output at 266nm as Photocathode Laser for RF Gun. (open access)

Accurate Synchronization Between Short Laser Pulse and Electron Bunch by Using HGHG Output at 266nm as Photocathode Laser for RF Gun.

Synchronization between seed laser pulse and electron bunch to below 50 fs is a critically important issue in carrying out cascading HGHG stages to achieve intense temporally coherent x-ray FEL. The single stage HGHG experiment in the IR and recently in UV region has achieved significant success. Hence the next step, to demonstrate the cascading of 2 stages of HGHG becomes crucially important in confirming the viability of this scheme. Based on our experiences at DUVFEL during the HGHG experiment, we can measure the time jitter between the electron bunch and the RF phase before compression to a high precision of order of 50 fs. Without the compression, this is equal to the time jitter between the laser and the RF phase. An analysis of this measurement suggests that it is possible to use a fast feedback system to reduce the jitter significantly. However, during the successful HGHG experiment at 266 nm recently, we realized that there is a simpler way to achieve highly accurate synchronization. Here we describe the method.
Date: April 1, 2003
Creator: Yu, L. H.
System: The UNT Digital Library
ACHIEVING NEW SOURCE PERFORMANCE STANDARDS (NSPS) EMISSION STANDARDS THROUGH INTEGRATION OF LOW-NOx BURNERS WITH AN OPTIMIZATION PLAN FOR BOILER COMBUSTION (open access)

ACHIEVING NEW SOURCE PERFORMANCE STANDARDS (NSPS) EMISSION STANDARDS THROUGH INTEGRATION OF LOW-NOx BURNERS WITH AN OPTIMIZATION PLAN FOR BOILER COMBUSTION

The objective of this project is to demonstrate the use of an Integrated Combustion Optimization System to achieve NO{sub x} emissions levels in the range of 0.15 to 0.22 lb/MMBtu while simultaneously enabling increased power output. The project consists of the integration of low-NO{sub x} burners and advanced overfire air technology with various process measurement and control devices on the Holcomb Station Unit 1 boiler. The project includes the use of sophisticated neural networks or other artificial intelligence technologies and complex software that can optimize several operating parameters, including NO{sub x} emissions, boiler efficiency, and CO emissions. The program is being performed in three phases. In Phase I, the boiler is being equipped with sensors that can be used to monitor furnace conditions and coal flow to permit improvements in boiler operation. In Phase II, the boiler will be equipped with burner modifications designed to reduce NO{sub x} emissions and automated coal flow dampers to permit on-line fuel balancing. In Phase III, the boiler will be equipped with an overfire air system to permit deep reductions in NO{sub x} emissions to be achieved. Integration of the overfire air system with the improvements made in Phases I and II will permit …
Date: April 1, 2003
Creator: Penrod, Wayne & Moyeda, David
System: The UNT Digital Library
Acoustic Detecting and Locating Gas Pipe Line Infringement Quarterly Report: Number 3 (open access)

Acoustic Detecting and Locating Gas Pipe Line Infringement Quarterly Report: Number 3

The West Virginia University natural gas transmission line leak detection research is only considering using readily available 1/2 inch pipeline access ports for the detection of leak generated signals. The main problem with leak signals is the low signal to noise ratio. One of the acoustic signals associated with gas escaping through a leak is only temporary and is in the form of a rarefaction wave originating when the leak is formed. Due to pipeline friction, over distance such a step function transitions to a ramp function. The ability to identify a leak by pipeline monitoring and signal processing depends a great deal on the quality and signal to noise ratio of the characteristics of the detectors used. Combinations of sensing devices are being used for the WVU sensor package and are contained in a removable sensor housing. The four sensors currently installed are a 1/2 inch 3 Hz-40 Khz microphone, an audible range moving coil sensor, a piezo-electric pressure transducer, and the WVU designed floating 3 inch diameter diaphragm to detect flow transient induced pressure ramp type signals. The WVU diaphragm sensor, which is currently under development, uses the same diaphragm principle as a high quality capacitance type microphone, …
Date: April 1, 2003
Creator: Loth, John L.; Morris, Gary J.; Palmer, George M.; Guiler, Richard & Mehra, Deepak
System: The UNT Digital Library
Advanced Gasification-Based Fuel Conversion and Electric Energy Production System Progress Report (open access)

Advanced Gasification-Based Fuel Conversion and Electric Energy Production System Progress Report

The objective of this project is the development and commercial demonstration of an advanced biomass gasification-based power generation system at Boise Cascade Corporation's pulp and paper mill in DeRidder, Louisiana. The advanced power generation system is intended to meet the immediate needs of the forest products industry for highly efficient and environmentally friendly electricity and steam generation systems utilizing existing wood waste as the primary fuel resource. The novel system is based on three advanced technology components: GTI's RENUGAS{reg_sign} and 3-stage solid fuels combustion technologies coupled with one of the power generation approaches used in DOE's HIPPS program. Phase 1 of the project is a technical and economic evaluation of the system at the DeRidder site. A Continuation Application will be submitted at the conclusion of Phase 1 for authorization to proceed to testing and design in Phase 2. Phase 2 includes pilot-scale verification of selected system components and preparation of a detailed engineering design and cost estimate for retrofit of the advanced power system at the DeRidder mill. Phase 3 will complete procurement and construction of the system at the DeRidder site along with all required permitting activities. Phase 4 of the project will included plant commissioning, startup and …
Date: April 1, 2003
Creator: Rabovitser, Joseph & Bryan, Bruce
System: The UNT Digital Library
ADVANCED, LOW/ZERO EMISSION BOILER DESIGN AND OPERATION (open access)

ADVANCED, LOW/ZERO EMISSION BOILER DESIGN AND OPERATION

This document reviews the work performed during the quarter January-March 2003. The main objectives of the project are: To demonstrate the feasibility of the full-oxy combustion with flue gas recirculation on Babcock & Wilcox's 1.5MW pilot boiler, To measure its performances in terms of emissions and boiler efficiency while selecting the right oxygen injection strategies, To perform an economical feasibility study, comparing this solution with alternate technologies, and To design a new generation, full oxy-fired boiler. The main objective of this quarter was to initiate the project, primarily the experimental tasks. The contractor and its subcontractors have defined a working plan, and the first tasks have been started. Task 1 (Site Preparation) is now in progress, defining the modifications to be implemented to the boiler and oxygen delivery system. The changes are required in order to overcome some current limitations of the existing system. As part of a previous project carried out in 2002, several changes have already been made on the pilot boiler, including the enrichment of the secondary and tertiary air with oxygen or the replacement of these streams with oxygen-enriched recycled flue gas. A notable modification for the current project involves the replacement of the primary air …
Date: April 1, 2003
Creator: Marin, Ovidiu & Chatel-Pelage, Fabienne
System: The UNT Digital Library
ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT (open access)

ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger Data & Consulting Services (DCS) joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden & Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners previously provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We have enhanced and streamlined our software, and we are using the final version of our new Microsoft{trademark} Access/Excel programs. During the last quarter of 2002, we received additional data for approximately 2,200 wells from Great Lakes. This information pertains to their Cooperstown field located in northwestern Pennsylvania. We recognized approximately 130 potential remediation candidates, and Great Lakes' personnel are currently reviewing this list for viable remediation. This field has provided a rigorous test of our software and analytical methods. We have processed all the information provided to us including the Cooperstown data. Great Lakes also provided supplemental data listing the original operator of the wells. We are also determining whether a statistically …
Date: April 1, 2003
Creator: MacDonald, Ronald J.
System: The UNT Digital Library
Advanced Technology for Predicting the Fluid Flow Attributes of Naturally Fractured Reservoirs From Quantitative Geologic Data and Modeling (open access)

Advanced Technology for Predicting the Fluid Flow Attributes of Naturally Fractured Reservoirs From Quantitative Geologic Data and Modeling

This report summarizes the work carried out during the period of September 29, 2000 to September 28, 2001 under DOE Research Contract No. DE-FC26-00BC15308. Our goal is to establish an integrated methodology of fractured reservoir characterization and show how that can be incorporated into fluid flow simulation. We have made progress in the characterization of mineral infilling of natural fractures. The main advancement in this regard was to recognize the strong interplay between diagenetic and mechanical processes. We accomplished several firsts in documenting and quantifying these processes, including documenting the range of emergent threshold in several formations and quantifying the internal structures of crack-seal bridges in fractures. These results will be the basis for an appreciation of fracture opening and filling rates that go well beyond our original goals. Looking at geochemical modeling of fracture infilling, our theoretical analysis addressed the problem of calcite precipitation in a fracture. We have built a model for the deposition of calcite within a fracture. The diagenetic processes of dissolution and partial cementation are key controls on the creation and distribution of natural fractures within hydrocarbon reservoirs. Even with extensive data collection, fracture permeability still creates uncertainty in reservoir description and the prediction of …
Date: April 1, 2003
Creator: Olson, Jon E.; Lake, Larry W. & Laubach, Steve E.
System: The UNT Digital Library
Afghanistan: Current Issues and U.S. Policy (open access)

Afghanistan: Current Issues and U.S. Policy

The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and Al Qaeda fighters and leaders that remain at large, including Osama bin Laden. As the war against remaining Al Qaeda and Taliban elements winds down, the United States is shifting its military focus toward stabilizing the interim government, including training a new Afghan national army, and supporting the international security force (ISAF) that is helping the new government provide security.
Date: April 1, 2003
Creator: Katzman, Kenneth
System: The UNT Digital Library
Alkaline-Surfactant-Polymer Flooding and Reservoir Characterization of the Bridgeport and Cypress Reservoirs of the Lawrence Field (open access)

Alkaline-Surfactant-Polymer Flooding and Reservoir Characterization of the Bridgeport and Cypress Reservoirs of the Lawrence Field

Feasibility of alkaline-surfactant-polymer flood for the Lawrence Field in Lawrence County, Illinois is being studied. Two injected formulations are being designed; one for the Bridgeport A and Bridgeport B reservoirs and one for Cypress and Paint Creek reservoirs. Fluid-fluid and coreflood evaluations have developed a chemical solution that produces incremental oil in the laboratory from the Cypress and Paint Creek reservoirs. A chemical formulation for the Bridgeport A and Bridgeport B reservoirs is being developed. A reservoir characterization study is being done on the Bridgeport A, B, & D sandstones, and on the Cypress sandstone. The study covers the pilot flood area and the Lawrence Field.
Date: April 1, 2003
Creator: Pitts, Malcolm; Damm, Ron & Seyler, Bev
System: The UNT Digital Library
An Audit Report on Certification of the Permanent School Fund's Bond Guarantee Program (open access)

An Audit Report on Certification of the Permanent School Fund's Bond Guarantee Program

Report of the Texas State Auditor's Office related to the total amount of school district bonds guaranteed by the Permanent School Fund's (PSF) Bond Guarantee Program (Program), whether these exceeded the limits established by state statute and the Internal Revenue Service (IRS), and following up on related issues from the previous year.
Date: April 2003
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Groundwater Conservation Districts - Phase Four (open access)

An Audit Report on Groundwater Conservation Districts - Phase Four

Report of the Texas State Auditor's Office related to determining whether the select audited districts were making a good-faith effort in pursuing the objectives in their groundwater management plans.
Date: April 2003
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on the Health and Human Services Commission's Prescription Drug Rebate Program (open access)

An Audit Report on the Health and Human Services Commission's Prescription Drug Rebate Program

Report of the Texas State Auditor's Office related to assessing the efficiency, accuracy, and timeliness of the Prescription Drug Rebate Program's (Program) collection process in connection with the Health and Human Services Commission's (Commission) Business Improvement Plan.
Date: April 2003
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on the Texas Education Agency's Administration of the Foundation School Program (open access)

An Audit Report on the Texas Education Agency's Administration of the Foundation School Program

Report of the Texas State Auditor's Office related to determining whether the Texas Education Agency (Agency) has information technology systems adequate to support the administration of the Foundation School Program, inputs accurate data into its Foundation School Program model, incorporates all legislative mandates in its funding model (and whether that model functions properly), distributes funds to school districts in a timely and accurate manner, and accurately adjusts school districts' funding through a post-funding adjustment process
Date: April 2003
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
The Biocatalytic Desulfurization Project Quarterly Report (open access)

The Biocatalytic Desulfurization Project Quarterly Report

Research activities in the second quarter have largely been a continuation of efforts previously described in the first quarterly report as well as a degree of redirection of effort as a result of discussions during the first quarterly meeting held in San Diego. Chemical synthesis efforts have been refined and are currently being used to support generation of substrates for evaluation and evolution of enzymes for their oxidation. Analysis of the sulfur species in Petro Star diesel, CED extract and refinement of the speciation data is nearly complete. Molecular biology efforts continue with the cloning, expression and characterization of the DszA and DszC proteins as well as the flavin reductases to support regeneration of the essential FMN cofactors. In addition, we have initiated an evolution effort for the extension and improvement of DszA enzyme activity using Diversa's Gene Site Saturation Mutagenesis (GSSM{trademark}) technology. To support the evolution effort as well as of characterization of enzyme activities on a variety of substrates, a high-throughput mass spectroscopy-based assay has been developed. Two selection/screen strategies for the discovery and evolution of biocatalyst enzyme have been developed and are being evaluated for performance using gene libraries constructed from known biodesulfurization strains and environmental libraries.
Date: April 1, 2003
Creator: Bonde, Steven E. & Nunn, David
System: The UNT Digital Library
The BNL ASTD Field Lab - Near - Real - Time Characterization of BNL Stockpiled Soils to Accelerate Completion of the EM Chemical Holes Project (open access)

The BNL ASTD Field Lab - Near - Real - Time Characterization of BNL Stockpiled Soils to Accelerate Completion of the EM Chemical Holes Project

As of October 2001, approximately 7,000 yd{sup 3} of stockpiled soil remained at Brookhaven National Laboratory (BNL) after the remediation of the BNL Chemical/Animal/Glass Pits disposal area. The soils were originally contaminated with radioactive materials and heavy metals, depending on what materials had been interred in the pits, and how the pits were excavated. During the 1997 removal action, the more hazardous/radioactive materials were segregated, along with, chemical liquids and solids, animal carcasses, intact gas cylinders, and a large quantity of metal and glass debris. Nearly all of these materials have been disposed of. In order to ensure that all debris was removed and to characterize the large quantity of heterogeneous soil, BNL initiated an extended sorting, segregation, and characterization project directed at the remaining soil stockpiles. The project was co-funded by the Department of Energy Environmental Management Office (DOE EM) through the BNL Environmental Restoration program and through the DOE EM Office of Science and Technology Accelerated Site Technology Deployment (ASTD) program. The focus was to remove any non-conforming items, and to assure that mercury and radioactive contaminant levels were within acceptable limits for disposal as low-level radioactive waste. Soils with mercury concentrations above allowable levels would be separated …
Date: April 1, 2003
Creator: Bowerman, B. S.; Adams, J. W.; Heiser, J.; Kalb, P. D. & Lockwood, A.
System: The UNT Digital Library
Bosnia: U.S. Military Operations (open access)

Bosnia: U.S. Military Operations

This report outlines U.S. military operations in Bosnia and discusses issues such as U.S. and Allied Participation in Bosnia Peacekeeping (IFOR/SFOR), duration, cost, arms control and military assistance. This report also includes most recent development, background analysis, and legislation.
Date: April 1, 2003
Creator: Bowman, Steven R.
System: The UNT Digital Library
Building a Bridge to the Ethanol Industry--Follow-up Project: Period of Performance; February 22, 2001- December 31, 2002 (open access)

Building a Bridge to the Ethanol Industry--Follow-up Project: Period of Performance; February 22, 2001- December 31, 2002

Subcontract report summarizing results of a trial of a corn fiber pretreatment process. The results of the trial showed that the carbohydrates in the pretreated liquid and solid streams are readily hydrolyzed by enzymes and easily fermentable to ethanol by yeast.
Date: April 1, 2003
Creator: Ladisch, M.; Mosier, N.; Welch, G. & Dien, B.
System: The UNT Digital Library
BUILDING TRIBAL CAPABILITIES IN ENERGY RESOURCE TRIBES (open access)

BUILDING TRIBAL CAPABILITIES IN ENERGY RESOURCE TRIBES

The CERT Tribal Internship Program is part of the education and training opportunities provided by CERT to accelerate the development of American Indian technical professionals available to serve Tribes and expand the pool of these professionals. Tribes are severely impacted by the inadequate number of Indian professionals available to serve and facilitate Tribal participation and support of the energy future of Tribes,and subsequently the energy future of the nation. By providing interns with hands-on work experience in their field of study two goals are accomplished: (1) the intern is provided opportunities for professional enhancement; and (2) The pool of Indian professionals available to meet the needs of Tribal government and Tribal communities in general is increased. As of January 17, 2003, Lance M Wyatt successfully completed his internship with the Interagency Working Group on Environmental Justice on the Task Force that specifically focuses their work on Tribal nations. While working as an intern with the National Transportation Program, Albuquerque operations, Jacqueline Agnew received an offer to work for the Alaska Native Health Board in Anchorage, Alaska. This was an opportunity that Ms. Agnew did not feel she could afford to forego and she left her internship position in February 2003. …
Date: April 1, 2003
Creator: Lopez, Mary
System: The UNT Digital Library
California's Electricity System of the Future Scenario Analysis in Support of Public-Interest Transmission System R&A Planning (open access)

California's Electricity System of the Future Scenario Analysis in Support of Public-Interest Transmission System R&A Planning

The California Energy Commission directed the Consortium for Electric Reliability Technology Solutions to analyze possible future scenarios for the California electricity system and assess transmission research and development (R&D) needs, with special emphasis on prioritizing public-interest R&D needs, using criteria developed by the Energy Commission. The scenarios analyzed in this report are not predictions, nor do they express policy preferences of the project participants or the Energy Commission. The public-interest R&D needs that are identified as a result of the analysis are one input that will be considered by the Energy Commission's Public Interest Energy Research staff in preparing a transmission R&D plan.
Date: April 1, 2003
Creator: Eto, Joseph & Stovall, John P.
System: The UNT Digital Library
CAPTURE AND USE OF COAL MINE VENTILATION AIR METHANE (open access)

CAPTURE AND USE OF COAL MINE VENTILATION AIR METHANE

This is the first semi-annual Technical Progress report under the subject agreement. During the first six months of the project the following items were accomplished: (1) the major subcontract with MEGTEC Systems was signed, (2) an exemption for a Plan Approval/Operating Permit from the Pennsylvania Department of Environmental Protection was obtained, and (3) a 101(c) Petition for Modification of Application of Mandatory Safety Standard was filed with the Mine Safety and Health Administration. These aspects of the project, as well as progress on public communications are discussed in detail in this report.
Date: April 1, 2003
Creator: Kosmack, Deborah A.
System: The UNT Digital Library
Cavity Expansion: A Library for Cavity Expansion Algorithms, Version 1.0 (open access)

Cavity Expansion: A Library for Cavity Expansion Algorithms, Version 1.0

Cavity expansion is a method for modeling the penetration of an axisymmetric or wedge-shaped solid body--a penetrator--into a target by using analytic expressions to capture the effects of the target on the body. Cavity expansion has been implemented as a third-party library (CavityExpansion) that can be used with explicit, transient dynamics codes. This document describes the mechanics of the cavity expansion model implemented as a third-party library. This document also describes the applications interface to CavityExpansion. A set of regression tests has been developed that can be used to test the implementation of CavityExpansion in a transient dynamics code. The mechanics of these tests and the expected results from the tests are described in detail.
Date: April 1, 2003
Creator: BROWN, KEVIN H.; KOTERAS, JAMES R.; LONGCOPE, DONALD B. & WARREN, THOMAS L.
System: The UNT Digital Library
A Cavity Ring-Down Spectroscopy Mercury Continuous Emission Monitor Progress Report (open access)

A Cavity Ring-Down Spectroscopy Mercury Continuous Emission Monitor Progress Report

Accurate reporting of mercury concentration requires a detailed model that includes experimental parameters that vary, such as: pressure, temperature, concentration, absorption cross-section, and isotopic structure etc. During this quarter a theoretical model has been developed to model the 253.7 nm mercury transition. In addition, while testing the interferent species SO{sub 2}, SRD was able to determine the absorption cross-section experimentally and add this to the theoretical model. Assuming that the baseline losses are due to the mirror reflectivity and SO{sub 2}, SRD can now determine the concentrations of both mercury and SO{sub 2} from the data taken. For the CRD instrument to perform as a continuous emission monitor it will be required to monitor mercury concentrations over extended periods of time. The stability of monitoring mercury concentrations over time with the CRD apparatus was tested during the past quarter. During a test which monitored the mercury concentration every 2 seconds it was found that the standard deviation, of a signal from about 1.25 ppb Hg, was only 30 ppt. SRD continued interferent gas testing during this past quarter. This included creating a simulated flue gas composed of the gases tested individually by SRD. The detection limits for mercury, although dependent …
Date: April 1, 2003
Creator: Carter, Christopher C.
System: The UNT Digital Library
Central Asia: Regional Developments and Implications for U.S. Interests (open access)

Central Asia: Regional Developments and Implications for U.S. Interests

This report provides an overview of U.S. policy concerns and relations with countries in central Asia. The report discusses issues such as Fostering Pro-Western Orientations, Obstacles to Peace and Independence, Democratization and Human Rights, Security and Arms Control, Trade and Investment, and provides an Aid Overview.
Date: April 1, 2003
Creator: Nichol, Jim
System: The UNT Digital Library
Characterizations of Hydrogen Energy Technologies (open access)

Characterizations of Hydrogen Energy Technologies

In 1996, Dr. Ed Skolnik of Energetics, Incorporated, began a series of visits to the locations of various projects that were part of the DOE Hydrogen Program. The site visits/evaluations were initiated to help the DOE Program Management, which had limited time and limited travel budgets, to get a detailed snapshot of each project. The evaluations were soon found to have other uses as well: they provided reviewers on the annual Hydrogen Program Peer Review Team with an in-depth look at a project--something that is lacking in a short presentation--and also provided a means for hydrogen stakeholders to learn about the R&D that the Hydrogen Program is sponsoring. The visits were conducted under several different contract mechanisms, at project locations specified by DOE Headquarters Program Management, Golden Field Office Contract Managers, or Energetics, Inc., or through discussion by some or all of the above. The methodology for these site-visit-evaluations changed slightly over the years, but was fundamentally as follows: Contact the Principal Investigator (PI) and arrange a time for the visit; Conduct a literature review. This would include a review of the last two or three years of Annual Operating Plan submittals, monthly reports, the paper submitted with the last …
Date: April 1, 2003
Creator: Inc, Energetics
System: The UNT Digital Library