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University of Pittsburgh and FETC CRADA PC96-004, Final Report
DoE/FETc-99/lo90 Cellular deposition is a dynamic phenomenon that may involve both adhesion and detachment, as in thrombosis and thromboembolism. Current techniques for assessing the blood compatibility of opaque biomaterials are limited to endpoint analysis of cellular deposition. To investigate temporal changes in deposition multiple trials with varying duration are generally required.
Date:
February 1, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
VALIDATION OF FIRESIDE PERFORMANCE INDICES: FOULING/CORROSION EVALUATION OF MDF PARTICLEBOARD AND BLENDS WITH WHEAT STRAW BOARD
Sauder Woodworking currently fires a large portion of all wood wastes in a boiler producing process steam. It is investigating using particleboard made from wheat straw in its manufacturing process and is concerned with the effects of the inorganics on its boiler. Wheat straw board contains higher ash contents and increased levels of potassium, creating concern over fouling characteristics in Sauder's tight boiler design. In addition, the wheat straw board contains high concentrations of chlorine, which may affect boiler tube corrosion when fired in combination with the particleboard wastes currently generated. Sauder has engaged the services of the Energy & Environmental Research Center (EERC) at the University of North Dakota to investigate the potential detrimental effects of firing blends containing wheat straw on boiler tube fouling and corrosion. Additional funding for this project was provided through the U.S. Department of Energy Jointly Sponsored Research Program (DOE JSRP) project ''Validation of Fireside Performance Indices'' to validate, improve, and expand the PCQUEST (Predictive Coal Quality Effects Screening Tool) program. The PCQUEST fuel database is constantly expanding and adding new fuels, for which the algorithms may need refinement and additional verification in order to accurately predict index values. A key focus is on …
Date:
February 1, 1999
Creator:
Zygarlicke, Christopher J.; Gunderson, Jay R. & McCollor, Donald P.
Object Type:
Report
System:
The UNT Digital Library
The VirtualwindoW: A Reconfigurable, Modular, Stereo Vision System
An important need while using unmanned vehicles is the ability for the remote operator or observer to easily and accurately perceive the operating environment. A classic problem in providing a complete representation of the remote work area is sensory overload or excessive complexity in the human-machine interface. In addition, remote operations often benefit from depth perception capability while viewing or manipulating objects. Thus, there is an ongoing effort within the remote and teleoperated robotic field to develop better human-machine interfaces. The Department of Energy's Idaho National Engineering and Environmental Laboratory (INEEL) has been researching methods to simplify the human-machine interface using atypical operator techniques. Initial telepresence research conducted at the INEEL developed and implemented a concept called the VirtualwindoW. This system minimized the complexity of remote stereo viewing controls and provided the operator the ''feel'' of viewing the environment, including depth perception, in a natural setting. The VirtualwindoW has shown that the human-machine interface can be simplified while increasing operator performance. This paper deals with the continuing research and development of the VirtualwindoW to provide a reconfigurable, modular system that easily utilizes commercially available off the shelf components. This adaptability is well suited to several aspects of unmanned vehicle applications, …
Date:
February 1, 1999
Creator:
McKay, M. D.; Anderson, M. O.; Kinoshita, R. A. & Willis, W. D.
Object Type:
Article
System:
The UNT Digital Library
Visualization Design Environment
Improvements in the performance and capabilities of computer software and hardware system, combined with advances in Internet technologies, have spurred innovative developments in the area of modeling, simulation and visualization. These developments combine to make it possible to create an environment where engineers can design, prototype, analyze, and visualize components in virtual space, saving the time and expenses incurred during numerous design and prototyping iterations. The Visualization Design Centers located at Sandia National Laboratories are facilities built specifically to promote the ''design by team'' concept. This report focuses on designing, developing and deploying this environment by detailing the design of the facility, software infrastructure and hardware systems that comprise this new visualization design environment and describes case studies that document successful application of this environment.
Date:
February 1, 1999
Creator:
Pomplun, A. R.; Templet, G. J.; Jortner, J. N.; Friesen, J. A.; Schwegel, J. & Hughes, K. R.
Object Type:
Report
System:
The UNT Digital Library
Weapon Systems Requirements Analysis Employing a Hybrid of Analytic Technologies
None
Date:
February 1, 1999
Creator:
Senglaub, M.
Object Type:
Report
System:
The UNT Digital Library
Web Application Design Using Server-Side JavaScript
This document describes the application design philosophy for the Comprehensive Nuclear Test Ban Treaty Research & Development Web Site. This design incorporates object-oriented techniques to produce a flexible and maintainable system of applications that support the web site. These techniques will be discussed at length along with the issues they address. The overall structure of the applications and their relationships with one another will also be described. The current problems and future design changes will be discussed as well.
Date:
February 1, 1999
Creator:
Hampton, J. & Simons, R.
Object Type:
Report
System:
The UNT Digital Library
Welcome to the U.S. Census Monitoring Board Web Site
U.S. Census Monitoring Board is a bipartisan board charged with monitoring the Bureau of the Census' preparations for the 2000 Census and reporting its findings to Congress and the President.
Date:
February 1, 1999
Creator:
U.S. Census Monitoring Board Presidential Members
Object Type:
Website
System:
The UNT Digital Library
Weldon Spring Site Remedial Action Project quarterly environmental data summary (QEDS) for fourth quarter 1998
This report contains the Quarterly Environmental Data Summary (QEDS) for the fourth quarter of 1998 in support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement. The data, except for air monitoring data and site KPA generated data (uranium analyses) were received from the contract laboratories, verified by the Weldon Spring Site verification group, and merged into the database during the fourth quarter of 1998. KPA results for on-site total uranium analyses performed during fourth quarter 1998 are included. Air monitoring data presented are the most recent complete sets of quarterly data.
Date:
February 1, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
What is Happening with Independent System Operators?
Emerging independent system operators (ISOs) appear to have many advantages for the wind power industry. This paper compares some past research on wind and transmission issues with some of the developments in ISO design and implementation.
Date:
February 1, 1999
Creator:
Porter, K. L.
Object Type:
Article
System:
The UNT Digital Library
Winning, February 1999
Pamphlet containing information about Texas Lottery winners, scratch-off prizes, new games, and more.
Date:
February 1999
Creator:
Texas Lottery Commission
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Workshop proceedings for USAF Institute of National Security Studies
None
Date:
February 1999
Creator:
Richardson, J. H.
Object Type:
Article
System:
The UNT Digital Library
Z-Pinch Driven Isentropic Compression for Inertial Fusion
The achievement of high gain with inertial fusion requires the compression of hydrogen isotopes to high density and temperatures. High densities can be achieved most efficiently by isentropic compression. This requires relatively slow pressure pulses on the order of 10-20 nanoseconds; however, the pressure profile must have the appropriate time. We present 1-D numerical simulations that indicate such a pressure profile can be generated by using pulsed power driven z pinches. Although high compression is calculated, the initial temperature is too low for ignition. Ignition could be achieved by heating a small portion of this compressed fuel with a short (-10 ps) high power laser pulse as previously described. Our 1-D calculations indicate that the existing Z-accelerator could provide the driving current (-20 MA) necessary to compress fuel to roughly 1500 times solid density. At this density the required laser energy is approximately 10 kJ. Multidimensional effects such as the Rayleigh-Taylor were not addressed in this brief numerical study. These effects will undoubtedly lower fuel compression for a given chive current. Therefore it is necessary to perform z-pinch driven compression experiments. Finally, we present preliminary experimental data from the Z-accelerator indicating that current can be efficiently delivered to appropriately small …
Date:
February 1, 1999
Creator:
Asay, J.R.; Hall, C.A.; Holland, K.G.; Slutz, S.A.; Spielman, R.B. & Stygar, W.A.
Object Type:
Report
System:
The UNT Digital Library