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69
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600 Matching Results
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600
Veteran’s Benefits: Issues in the 110th Congress
None
Date:
April 11, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Visions: The coming revolutions in particle physics
Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop the understanding of the problem of identity and the dimensionality of spacetime.
Date:
April 11, 2002
Creator:
Quigg, Chris
Object Type:
Article
System:
The UNT Digital Library
VPP--DESIGN CRITERIA FOR AN INSTALLATION TO REMOVE HYDROGEN FLUORIDE AND FLUORINE FROM THE CELLS 1 AND 2 VENTILATION GASES PRIOR TO FILTRATION
Criteria are presented for a horizontal cocurrent spray nozzle scrubbing system designed to remove fluorine and hydrogen fluoride from the 3000 cfm of ventilation air passing through the Volatility Pilot Plant. A reduction of fluorine concentration from 1520 to <2 ppm during a total release of 68 lbs, and a reduction of hydrogen fluoride concentration from 4090 to <1 ppm during a total release of 200 lbs, will adequately protect the Fiberglas media filters. Six scrubbing states each containing four nozzle-throat spray units are needed with a 5 to 10% aqueous caustic potash recycle system pumping at a maximum rate of approximately 180 gal/min, with a range per nozzle from 3 to 7 gal/min. The scrubber will be 4 ft x 4 ft x approximately 25 ft, containing a deentrainment section of baffles and demister. The associated ventilation system hardware, services, and instrumentation requirements are given. (auth)
Date:
April 11, 1950
Creator:
Ruch, J B
Object Type:
Report
System:
The UNT Digital Library
Wagon-Seat.
Patent for "a detachable spring or resilient support for wagon seats [...] which may be adjusted for positioning the seat at various elevations" (lines 14-22), including illustrations.
Date:
April 11, 1916
Creator:
Winslow, George J.
Object Type:
Patent
System:
The Portal to Texas History
Waste Feed Delivery Purex Process Connector Design Pressure
The pressure retaining capability of the PUREX process connector is documented. A context is provided for the connector's current use within existing Projects. Previous testing and structural analyses campaigns are outlined. The deficient condition of the current inventory of connectors and assembly wrenches is highlighted. A brief history of the connector is provided. A bibliography of pertinent references is included.
Date:
April 11, 2000
Creator:
Brackenbury, P. J.
Object Type:
Report
System:
The UNT Digital Library
Wavelet based characterization of ex vivo vertebral trabecular bone structure with 3T MRI compared to microCT
Trabecular bone structure and bone density contribute to the strength of bone and are important in the study of osteoporosis. Wavelets are a powerful tool to characterize and quantify texture in an image. In this study the thickness of trabecular bone was analyzed in 8 cylindrical cores of the vertebral spine. Images were obtained from 3 Tesla (T) magnetic resonance imaging (MRI) and micro-computed tomography ({micro}CT). Results from the wavelet based analysis of trabecular bone were compared with standard two-dimensional structural parameters (analogous to bone histomorphometry) obtained using mean intercept length (MR images) and direct 3D distance transformation methods ({micro}CT images). Additionally, the bone volume fraction was determined from MR images. We conclude that the wavelet based analyses delivers comparable results to the established MR histomorphometric measurements. The average deviation in trabecular thickness was less than one pixel size between the wavelet and the standard approach for both MR and {micro}CT analysis. Since the wavelet based method is less sensitive to image noise, we see an advantage of wavelet analysis of trabecular bone for MR imaging when going to higher resolution.
Date:
April 11, 2005
Creator:
Krug, R.; Carballido-Gamio, J.; Burghardt, A.; Haase, S.; Sedat, J. W.; Moss, W. C. et al.
Object Type:
Article
System:
The UNT Digital Library
WebSpace - a WebWindows based gateway to the ANL LabSpace. Final report for period September 1, 1995 - August 31, 1998
The goal of this project was to prototype a Web based computational and collaboratory environment that would act as a commodity technologies based front-end or Gateway to larger HPC systems such as ANL LabSpace. The original name - WebSpace - proposed for such a system was taken during the course of this project by Silicon Graphics and used for their Web authoring environment. To avoid confusion, we changed the name of this project's system to WebFlow.
Date:
April 11, 2002
Creator:
Furmanski, Wojtek
Object Type:
Report
System:
The UNT Digital Library
Well Bucket
Patent for Improvements in well buckets. The bucket has an inlet valve at the bottom and an air escape valve at the top that permits air to escape freely while preventing the entrance of dirt and extraneous matter to the interior of the bucket.
Date:
April 11, 1922
Creator:
Reese, Samuel L.
Object Type:
Patent
System:
The Portal to Texas History
Wetland Issues
Instead of a single comprehensive federal wetland protection law, multiple laws provide varying levels of protection in different forms: the permit program authorized in §404 in the Clean Water Act; programs for agricultural wetlands; laws that protect specific sites; and laws that protect wetlands which perform certain functions. Many protection advocates view these laws and their implementation as inadequate or uncoordinated. Others, who advocate the rights of property owners and development interests, by contrast, characterize these efforts, especially the §404 permit program, as too intrusive. Numerous state and local wetland programs add to the complexity of the protection effort.
Date:
April 11, 2003
Creator:
Zinn, Jeffrey A. & Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
Wheel
Patent for a wheel with a pneumatic tire designed so that it will not make contact with the ground, thus preventing wear and punctures. Illustrations included.
Date:
April 11, 1911
Creator:
Spoonts, Joseph L. & Eubank, Edwin M.
Object Type:
Patent
System:
The Portal to Texas History
Why Has the Economy Become Less Volatile?
The 2001 recession was unusually mild and brief by historical standards. At 120 months, the expansion that preceded it had been the longest in U.S. history. Is this a coincidence? A body of research concludes that it is not. This report discusses several theories for what caused this phenomenon.
Date:
April 11, 2007
Creator:
Labonte, Marc
Object Type:
Report
System:
The UNT Digital Library
Wide-band neutrino beams at 1000 GeV
In a previous publication, S. Mori discussed various broad-band neutrino and antineutrino beams using 1000 GeV protons on target. A new beam (SST) has been designed which provides the same neutrino flux as the quadrupole triplet (QT) while suppressing the wrong sign flux by a factor of 18. It also provides more than twice as much high energy antineutrino flux than the sign-selected bare target (SSBT) and in addition, has better neutrino suppression. While it is possible to increase the flux obtained from the single horn system over that previously described, the conclusion which states any horn focussing system seems to be of marginal use for Tevatron neutrino physics, is unchanged. Neutrino and antineutrino event rates and wrong sign backgrounds were computed using NUADA for a 100 metric ton detector of radius 1.5 meters. Due to radiation considerations and the existing transformer location, the horn beam is placed in its usual position inside the Target Tube. All other beams are placed in Fronthall. Thus, for the wide-band Fronthall trains a decay distance of 520 meters is used, versus 400 meters for the horn train. (WHK)
Date:
April 11, 1983
Creator:
Malensek, A. & Stutte, L.
Object Type:
Report
System:
The UNT Digital Library
Wind powering America: Iowa
Wind resources in the state of Iowa show great potential for wind energy development. This fact sheet provides a brief description of the state's wind resources and the financial incentives available for the development of wind energy systems. It also provides a list of contacts for more information.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind powering America: Kansas
Wind resources in the state of Kansas show great potential for wind energy development according to the wind resource assessment conducted by the Kansas Electric Utilities Research Program, UWIG, and DOE. This fact sheet provides a brief description of the resource assessment and description of the state's new educational wind kiosk as well as its green power program and financial incentives available for the development of renewable energy technologies. A list of contacts for more information is also included.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind powering America: Massachusetts
This fact sheet provides a brief description of the wind resources in Massachusetts, the state financial incentives to develop wind systems and its net metering and green power programs. The fact sheet also provides a list of contacts for more information.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind powering America: New Mexico
This fact sheet provides a brief description of the wind resources in New Mexico and the state's net metering and green power programs. The fact sheet also provides a list of contacts for more information.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind powering America: South Dakota
This fact sheet contains a description of South Dakota's wind energy resources, and the state's financial incentives that support the installation of renewable energy systems. The fact sheet includes a list of contacts for those interested in obtaining more information.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind powering America: Vermont
Wind resources in the state of Vermont show great potential for wind energy development according to the wind resource assessment conducted by the state, its utilities, and NREL. This fact sheet provides a brief description of the resource assessment and a link to the resulting wind resource map produced by NREL. The fact sheet also provides a description of the state's net metering program, its financial incentives, and green power programs as well as a list of contacts for more information.
Date:
April 11, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Wind Wheel
Patent for a wind wheel. Illustration included.
Date:
April 11, 1905
Creator:
Sharp, Marvin A. & Sharp, Bird H.
Object Type:
Patent
System:
The Portal to Texas History
Wire Stretcher
Patent for a wire stretcher. Illustration included.
Date:
April 11, 1905
Creator:
Bays, Lafayette
Object Type:
Patent
System:
The Portal to Texas History
Wrench
Patent for an improvement in the design of wrenches, particular for heavy work such as deep well drilling, but still being able to be designed at smaller sizes to handle lighter work.
Date:
April 11, 1922
Creator:
Reed, Clarence E.
Object Type:
Patent
System:
The Portal to Texas History
X-ray Scattering Techniques for Characterization of Nanosystems in Lifescience
The intent of this chapter is to provide the basics of using x-ray diffraction techniques in order to obtain information on the structure and morphology of the nanosystems, and also to point out some of its strengths and weaknesses when compare to other characterization techniques. X-ray scattering examines over a wide range of density domains from a tenth to a thousandth angstrom. Essentially, this covers a whole range of condensed matter, including the structure and morphology of nanosystems, particularly useful for examining nanostructures in lifescience. This range of domain size requires both the wide-angle x-ray scattering (WAXS) and small-angle (SAXS) x-ray scattering techniques. Roughly WAXS covers from 2 nm down, and SAXS covers from .5 nm to 100 nm and possibly 1,000 nm for a finely tuned instrument. Brief theoretical description of both WAXS and SAXS will be given in this chapter. WAXS, by itself is a powerful technique in providing information on the crystallographic structure or lack of structure, atomic positions and sizes in a unit cell, to some extend, chemical compositions and as well as chemical stoichiometry. Examples of such experiments will also be given. In order to be able to describe the technique of x-ray scattering, some …
Date:
April 11, 2005
Creator:
Saw, C K
Object Type:
Article
System:
The UNT Digital Library
Zeros in $pi$$pi$ scattering
None
Date:
April 11, 1973
Creator:
Pennington, M.R.
Object Type:
Article
System:
The UNT Digital Library
Zircaloy Process Tube Monitoring
The large scale application of Zircaloy-2 pressure tubes for structural use either in or out of reactor service, is without precedent. For more common materials, there normally are adequate data and long operating histories on which to base design and service limits. In the absence of such information for Zr-2, several investigative programs have been devised to provide much of the information from which design and service limits may be defined for Zr-2 pressure tubes. These investigations encompass in-and-out-of-reactor creep and stress-rupture testing, pre-and-post irradiation testing, and bust strength, as well as the effect of flaws or defects (from both fabrication and service origins) on burst strength and fracture characteristics. Already creep and stress rupture testing of unirradiated Zircaloy-2 is well advanced, and some experimental pre-irradiation burst testing has been carried out and will be extended rapidly as improved equipment becomes available. One irradiated KER tube sample has been burst tested and the requirement for post irradiation burst testing equipment have been defined.
Date:
April 11, 1960
Creator:
Pankaskie, P. J.
Object Type:
Report
System:
The UNT Digital Library