Tailored Porous Materials (open access)

Tailored Porous Materials

Tailoring of porous materials involves not only chemical synthetic techniques for tailoring microscopic properties such as pore size, pore shape, pore connectivity, and pore surface reactivity, but also materials processing techniques for tailoring the meso- and the macroscopic properties of bulk materials in the form of fibers, thin films and monoliths. These issues are addressed in the context of five specific classes of porous materials: oxide molecular sieves, porous coordination solids, porous carbons, sol-gel derived oxides, and porous heteropolyanion salts. Reviews of these specific areas are preceded by a presentation of background material and review of current theoretical approaches to adsorption phenomena. A concluding section outlines current research needs and opportunities.
Date: November 9, 1999
Creator: Barton, Thomas J.; Bull, Lucy M.; Klemperer, Walter G.; Loy, Douglas A.; McEnaney, Brian; Misono, Makoto et al.
Object Type: Article
System: The UNT Digital Library
Increasing Waterflooding Reservoirs in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management (open access)

Increasing Waterflooding Reservoirs in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management

The objectives of this quarterly report was to summarize the work conducted under each task during the reporting period April - June 1998 and to report all technical data and findings as specified in the ''Federal Assistance Reporting Checklist''. The main objective of this project is the transfer of technologies, methodologies, and findings developed and applied in this project to other operators of Slope and Basin Clastic Reservoirs. This project will study methods to identify sands with high remaining oil saturation and to recomplete existing wells using advanced completion technology.
Date: November 9, 1999
Creator: Koerner, Roy; Clarke, Don & Walker, Scott
Object Type: Report
System: The UNT Digital Library
Physical Protection System Upgrades - Optimizing for Performance and Cost (open access)

Physical Protection System Upgrades - Optimizing for Performance and Cost

CPA--Cost and Performance Analysis--is an architecture that supports analysis of physical protection systems and upgrade options. ASSESS (Analytic System and Software for Evaluating Security Systems), a tool for evaluating performance of physical protection systems, currently forms the cornerstone for evaluating detection probabilities and delay times of the system. Cost and performance data are offered to the decision-maker at the systems level and to technologists at the path-element level. A new optimization engine has been attached to the CPA methodology to automate analyses of many combinations (portfolios) of technologies. That engine controls a new analysis sequencer that automatically modifies ASSESS PPS files (facility descriptions), automatically invokes ASSESS Outsider analysis and then saves results for post-processing. Users can constrain the search to an upper bound on total cost, to a lower bound on level of performance, or to include specific technologies or technology types. This process has been applied to a set of technology development proposals to identify those portfolios that provide the most improvement in physical security for the lowest cost to install, operate and maintain at a baseline facility.
Date: July 9, 1999
Creator: Bouchard, Ann M. & Hicks, Mary Jane
Object Type: Article
System: The UNT Digital Library
Wind Power Quality Test for Comparison of Power Quality Standards (open access)

Wind Power Quality Test for Comparison of Power Quality Standards

Power quality testing is important to wind power applications for several reasons. The nature of wind turbine generation is different from conventional power plants. Although windfarms are growing in capacity and diversifying in nature in the U.S. and throughout the globe, there is no standard that addresses the power quality of wind turbines or wind farms. The International Electrotechnical Committee (IEC) has convened Working Group 10 (WG10) to address testing and assessment of power quality characteristics of wind turbines. A IEEE task force has been appointed to reconsider flicker measurement procedures in the U.S. Lastly, power quality tests are now required as part of the certification process for wind turbines. NREL began this work both in response to industry request and in support of the IEC working group. (Mr. Gregory is a member of the IEC working group) This paper presents the NREL Certification Testing Team's effort in developing procedures and equipment for power quality testing for wind turbine certification. Summaries of several power quality standards that are applicable to this process are also presented in this paper.
Date: September 9, 1999
Creator: Jacobson, R. & Gregory, B. (National Wind Technology Center)
Object Type: Article
System: The UNT Digital Library
Combating Terrorism: Analysis of Potential Emergency Response Equipment and Sustainment Costs (open access)

Combating Terrorism: Analysis of Potential Emergency Response Equipment and Sustainment Costs

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO determined the potential cost of equipping and maintaining the capability of cities to respond to a terrorist incident involving a chemical, biological, radiological, or nuclear device (CBRN), focusing on the: (1) views of federal, state, and local officials on equipment they believed would provide various levels of capability to respond to a CBRN incident; and (2) potential procurement and sustainment costs of these items."
Date: June 9, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library