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18,179 Matching Results
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Observation of the narrow state x (3872) --> j/psi pi+ pi- in pbar p collisions at s**(1/2) = 1.96 tev
The authors report the observation of a narrow state decaying into J/{psi}{pi}{sup +}{pi}{sup -} and produced in 220 pb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV in the CDF II experiment. They observe 730 {+-} 90 decays. The mass is measured to be 3871.3 {+-} 0.7(stat) {+-} 0.4(syst) MeV/c{sup 2}, with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.
Date:
February 27, 2004
Creator:
Acosta, D.
Object Type:
Report
System:
The UNT Digital Library
Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays
None
Date:
February 1, 2005
Creator:
Acosta, D.; Adelman, J.; Affolder, Anthony A.; Akimoto, T.; Albrow, M. G.; Ambrose, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with Charlie Adams, February 17, 2005
The National Museum of the Pacific War presents an oral interview with Charlie Adams. Adams enlisted in the Marine Corps in March, 1943 and after training was assigned to the Fifth Marine Division. He landed late on the first day of the invasion of Iwo Jima. He remained there for 36 days. He served as a radio operator and describes much of the combat conditions he encountered on the island as well as some of the Japanese tactics. He was one of 13 of his original company of 248 men to walk off Iwo Jima unhurt. Adams also describes some of his experiences in Nagasaki, Japan during the occupation. He returned to the US and was discharged in March, 1946.
Date:
February 17, 2005
Creator:
Adams, Charlie
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Charlie Adams, February 17, 2005
The National Museum of the Pacific War presents an oral interview with Charlie Adams. Adams enlisted in the Marine Corps in March, 1943 and after training was assigned to the Fifth Marine Division. He landed late on the first day of the invasion of Iwo Jima. He remained there for 36 days. He served as a radio operator and describes much of the combat conditions he encountered on the island as well as some of the Japanese tactics. He was one of 13 of his original company of 248 men to walk off Iwo Jima unhurt. Adams also describes some of his experiences in Nagasaki, Japan during the occupation. He returned to the US and was discharged in March, 1946.
Date:
February 17, 2005
Creator:
Adams, Charlie
Object Type:
Text
System:
The Portal to Texas History
Sulfur Polymer Stabilization/Solidification (SPSS) Treatability of Simulated Mixed-Waste Mercury Contaminated Sludge
The Environmental Protection Agency (EPA) is currently evaluating alternative treatment standards for radioactively contaminated high mercury (Hg) subcategory wastes, which do not require the removal of mercury from the waste. The Sulfur Polymer Stabilization/Solidification (SPSS) process developed at Brookhaven National Laboratory is one of several candidate technologies capable of successfully treating various Hg waste streams. To supplement previously supplied data on treatment of soils, EPA needed additional data concerning stabilization of high Hg subcategory waste sludges. To this end, a 5000 ppm sludge surrogate, containing approximately 50 wt% water, was successfully treated by pilot-scale SPSS processing. In two process runs, 85 and 95 wt% of water was recovered from the sludge during processing. At waste loadings of 46 wt% (30 wt% dry) sludge, the treated waste form had no detectable mercury (<10 ppb) in TCLP leachates. Data gathered from the demonstration of treatment of this sludge will provide the EPA with information to support revisions to current treatment requirements for high Hg subcategory wastes.
Date:
February 25, 2002
Creator:
Adams, J. W.; Bowerman, B. S. & Kalb, P. D.
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with John Adams, February 18, 2005
The National Museum of the Pacific War presents an interview with John Adams. Adams enlisted in the Marines Corps Officer’s Procurement Program in March 1942. He went into a V-12 detachment in July 1943, and was sent to Notre Dame University. From there he went to Quantico, then into OCS, then to New River, North Carolina where he was in the 67th Replacement Battalion. This battalion served as guards on a train transporting prisoners from Portsmouth Naval Prison to California, then on a ship to Pearl Harbor. Adams was placed in a 60mm mortar platoon. His first action was Iwo Jima. He landed in the fifth wave. He worked with the mortars, carried out many wounded men, and carried ammo. Adams describes the terrain on Iwo Jima. He talks at length about his 27 days on Iwo. After Iwo he went to Maui and upon being discharged, Adams became a self-employed farmer, married and raised 11 children.
Date:
February 18, 2005
Creator:
Adams, John
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with John Adams, February 18, 2005
The National Museum of the Pacific War presents an interview with John Adams. Adams enlisted in the Marines Corps Officer’s Procurement Program in March 1942. He went into a V-12 detachment in July 1943, and was sent to Notre Dame University. From there he went to Quantico, then into OCS, then to New River, North Carolina where he was in the 67th Replacement Battalion. This battalion served as guards on a train transporting prisoners from Portsmouth Naval Prison to California, then on a ship to Pearl Harbor. Adams was placed in a 60mm mortar platoon. His first action was Iwo Jima. He landed in the fifth wave. He worked with the mortars, carried out many wounded men, and carried ammo. Adams describes the terrain on Iwo Jima. He talks at length about his 27 days on Iwo. After Iwo he went to Maui and upon being discharged, Adams became a self-employed farmer, married and raised 11 children.
Date:
February 18, 2005
Creator:
Adams, John
Object Type:
Text
System:
The Portal to Texas History
Letter of Intent for RPP Characterization Program Process Engineering and Hanford Analytical Services and Characterization Project
The Characterization Project level of success achieved by the River Protection Project (RPP) is determined by the effectiveness of several organizations across RPP working together. The requirements, expectations, interrelationships, and performance criteria for each of these organizations were examined in order to understand the performances necessary to achieve characterization objectives. This Letter of Intent documents the results of the above examination. It formalizes the details of interfaces, working agreements, and requirements for obtaining and transferring tank waste samples from the Tank Farm System (RPP Process Engineering, Characterization Project Operations, and RPP Quality Assurance) to the characterization laboratory complex (222-S Laboratory, Waste Sampling and Characterization Facility, and the Hanford Analytical Service Program) and for the laboratory complex analysis and reporting of analytical results.
Date:
February 25, 2000
Creator:
Adams, M. R.
Object Type:
Report
System:
The UNT Digital Library
Tank Characterization Report for Single Shell Tank 241-U-103
This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste stored in Tank 241-U-103. This report supports the requirements of the Tri-Party Agreement Milestone M-44-15B.
Date:
February 1, 2000
Creator:
Adams, M. R.
Object Type:
Report
System:
The UNT Digital Library
Science-Driven Network Requirements for ESnet
The Energy Sciences Network (ESnet) is the primary providerof network connectivity for the US Department of Energy Office ofScience, the single largest supporter of basic research in the physicalsciences in the United States. In support of the Office of Scienceprograms, ESnet regularly updates and refreshes its understanding of thenetworking requirements of the instruments, facilities and scientiststhat it serves. This focus has helped ESnet to be a highly successfulenabler of scientific discovery for over 20 years. In August, 2002 theDOE Office of Science organized a workshop to characterize the networkingrequirements for Office of Science programs. Networking and middlewarerequirements were solicited from a representative group of scienceprograms. The workshop was summarized in two documents the workshop finalreport and a set of appendixes. This document updates the networkingrequirements for ESnet as put forward by the science programs listed inthe 2002 workshop report. In addition, three new programs have beenadded. Theinformation was gathered through interviews with knowledgeablescientists in each particular program or field.
Date:
February 21, 2006
Creator:
Adams, Paul; Canon, Shane; Carter, Steven; Draney, Brent; Greenwald, Martin; Hodges, Jason et al.
Object Type:
Report
System:
The UNT Digital Library
Searches for Long-lived Particles at the Tevatron Collider
None
Date:
February 1, 2008
Creator:
Adams, T.
Object Type:
Article
System:
The UNT Digital Library
Performance and Reliability of a 1-kW Amorphous Silicon Photovoltaic Roofing System
The National Renewable Energy Laboratory (NREL) has been monitoring the performance of a 1- kWAC United Solar Systems Corporation (USSC) roofing system over the 6-year period from October 1998 to September 2004. This paper will investigate the performance and reliability of this system. The annual degradation and seasonal fluctuation of the system's power output are calculated using the PVUSA power rating regression model. The system performance is also examined using the additional performance parameters of yield, reference yield, and performance ratio, which allows for a somewhat less complicated data collection and analysis. The data indicate that the system has exhibited stable performance over time, with an overall degradation rate comparable to that found in crystalline silicon systems.
Date:
February 1, 2005
Creator:
Adelstein, J. & Sekulic, B.
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with Christine Adler, February 1, 2002
The National Museum of the Pacific War presents an oral interview with Christine Adler. Adler was born in New York City in 1931 to Filipino and American parents. She tells of living in an orphanage until 1938 at which time she went to the Philippines to live with her father. Upon arriving in the Philippines she attended private schools. She recalls December 1941 when she was awakened by the sound of tanks and Japanese soldiers entering homes and taking anything of value. As her father worked with a guerilla group they left their home. Adler tells of fleeing with no shoes, few clothes and very little personal belongings and moving place to place to avoid detection. She recounts an incident where Japanese soldiers picked her up and took her to Fort Santiago. She and her father were later released. She describes seeing piles of bodies and witnessing torture being done by the Japanese during the occupation and of seeing the fires as Manila was set ablaze. She tells of the joy felt by the population upon seeing the American tanks and soldiers roll into the city and of the return of her and her father to the United States aboard …
Date:
February 1, 2002
Creator:
Adler, Christine
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Christine Adler, February 1, 2002
The National Museum of the Pacific War presents an oral interview with Christine Adler. Adler was born in New York City in 1931 to Filipino and American parents. She tells of living in an orphanage until 1938 at which time she went to the Philippines to live with her father. Upon arriving in the Philippines she attended private schools. She recalls December 1941 when she was awakened by the sound of tanks and Japanese soldiers entering homes and taking anything of value. As her father worked with a guerilla group they left their home. Adler tells of fleeing with no shoes, few clothes and very little personal belongings and moving place to place to avoid detection. She recounts an incident where Japanese soldiers picked her up and took her to Fort Santiago. She and her father were later released. She describes seeing piles of bodies and witnessing torture being done by the Japanese during the occupation and of seeing the fires as Manila was set ablaze. She tells of the joy felt by the population upon seeing the American tanks and soldiers roll into the city and of the return of her and her father to the United States aboard …
Date:
February 1, 2002
Creator:
Adler, Christine
Object Type:
Text
System:
The Portal to Texas History
The Ghanaian Approach to the Development of an Effective Waste Management Regime
In Ghana, radioactive waste is generated mainly from spent sealed sources, various nuclear applications--diagnostic and therapeutic procedures in medicine and measurement and processing techniques in industry. The radionuclide composition in the waste arising from industry, research and teaching includes 14C, 137Cs, 60Co, 241Am, 3H, 32P, 125I, 192Ir, 131I, 99m Tc, 35S and 90Sr. Ghana is strengthening its radioactive waste management infrastructure, which include the development of a legal framework by providing laws, regulations and guidelines and allocating responsibilities of waste generators, the National Radioactive Waste Management Centre (NRWMC), and the Radiation Protection Board (RPB). The radioactive waste management regulations which is in it's final stage of promulgation set up the basic technical and organizational requirements to be complied with by waste generators and operators of waste management facilities and make provisions for penalties for non-compliance with the regulations. With the installation of a 30 kW Research Reactor for neutron activation analysis, 185 TBq 60Co facility for the treatment of cancer at the Korle-bu teaching hospital, 1850 TBq 60Co facility for irradiation of medical and agricultural products and 192Ir sources for industrial radiography, radioactive waste is expected to increase in the near future. At present, waste management is limited exclusively to …
Date:
February 24, 2003
Creator:
Adu, P. S.; Gbadago, J. K. & Glover, E. T.
Object Type:
Article
System:
The UNT Digital Library
Advisory Commission on Electronic Commerce
Home of the Advisory Commission on Electronic Commerce, created by Congress to produce recommendations on electronic commerce and tax policy, critical information age issues with global implications.
Date:
February 1, 2004
Creator:
Advisory Commission on Electronic Commerce
Object Type:
Website
System:
The UNT Digital Library
Nanostructured Catalyst Systems for Fuel Cells: Synthesis and Characterization of Low Platinum Content Electrocatalysts for O{sub 2} Reduction
The objective of this project is to synthesize and characterize new O{sub 2} reduction catalysts with enhanced activity and ultra low Pt loading, and to test them in membrane electrode assemblies (MEAs) to determine their performance under fuel cell cathode operating conditions.
Date:
February 1, 2007
Creator:
Adzic, Radoslav
Object Type:
Report
System:
The UNT Digital Library
Beam Emittance Measurement with Laser Wire Scanners in the ILC Beam Delivery System
Accurate measurement of the beam phase-space is essential for the next generation of electron accelerators. A scheme for beam optics optimization and beam matrix reconstruction algorithms for the diagnostics section of the beam delivery system of the International Linear Collider based on laser-wire beam profile monitors are discussed. Possible modes of operation of the laser-wire system together with their corresponding performance are presented. Based on these results, prospects for reconstructing the ILC beam emittance from representative laser-wire beam size measurements are evaluated.
Date:
February 1, 2008
Creator:
Agapov, I.; Blair, G.A. & Woodley, M.
Object Type:
Article
System:
The UNT Digital Library
Fluxnet Synthesis Dataset Collaboration Infrastructure
The Fluxnet synthesis dataset originally compiled for the La Thuile workshop contained approximately 600 site years. Since the workshop, several additional site years have been added and the dataset now contains over 920 site years from over 240 sites. A data refresh update is expected to increase those numbers in the next few months. The ancillary data describing the sites continues to evolve as well. There are on the order of 120 site contacts and 60proposals have been approved to use thedata. These proposals involve around 120 researchers. The size and complexity of the dataset and collaboration has led to a new approach to providing access to the data and collaboration support and the support team attended the workshop and worked closely with the attendees and the Fluxnet project office to define the requirements for the support infrastructure. As a result of this effort, a new website (http://www.fluxdata.org) has been created to provide access to the Fluxnet synthesis dataset. This new web site is based on a scientific data server which enables browsing of the data on-line, data download, and version tracking. We leverage database and data analysis tools such as OLAP data cubes and web reports to enable browser …
Date:
February 6, 2008
Creator:
Agarwal, Deborah A.; Humphrey, Marty; van Ingen, Catharine; Beekwilder, Norm; Goode, Monte; Jackson, Keith et al.
Object Type:
Report
System:
The UNT Digital Library
Network aware distributed applications
Most distributed applications today manage to utilize only a small percentage of the needed and available network bandwidth. Often application developers are not aware of the potential bandwidth of the network, and therefore do not know what to expect. Even when application developers are aware of the specifications of the machines and network links, they have few resources that can help determine why the expected performance was not achieved. What is needed is a ubiquitous and easy-to-use service that provides reliable, accurate, secure, and timely estimates of dynamic network properties. This service will help advise applications on how to make use of the network's increasing bandwidth and capabilities for traffic shaping and engineering. When fully implemented, this service will make building currently unrealizable levels of network awareness into distributed applications a relatively mundane task. For example, a remote data visualization application could choose between sending a wireframe, a pre-rendered image, or a 3-D representation, based on forecasts of CPU availability and power, compression options, and available bandwidth. The same service will provide on-demand performance information so that applications can compare predicted with actual results, and allow detailed queries about the end-to-end path for application and network tuning and debugging.
Date:
February 4, 2001
Creator:
Agarwal, Deborah; Tierney, Brian L.; Gunter, Dan; Lee, Jason & Johnston, William
Object Type:
Article
System:
The UNT Digital Library
The Eastern Statesman (Wilburton, Okla.), Vol. 81, No. 9, Ed. 1 Monday, February 3, 2003
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
February 3, 2003
Creator:
Agent, Alicia
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Eastern Statesman (Wilburton, Okla.), Vol. 81, No. 10, Ed. 1 Friday, February 14, 2003
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
February 14, 2003
Creator:
Agent, Alicia
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fracture, Aging and Disease in Bone
From a public health perspective, developing a detailed mechanistic understanding of the well-known increase in fracture risk of human bone with age is essential. This also represents a challenge from materials science and fracture mechanics viewpoints. Bone has a complex, hierarchical structure with characteristic features ranging from nanometer to macroscopic dimensions; it is therefore significantly more complex than most engineering materials. Nevertheless, by examining the micro-/nano-structural changes accompanying the process of aging using appropriate multiscale experimental methods and relating them to fracture mechanics data, it is possible to obtain a quantitative picture of how bone resists fracture. As human cortical bone exhibits rising ex vivo crack-growth resistance with crack extension, its fracture toughness must be evaluated in terms of resistance-curve (R-curve) behavior. While the crack initiation toughness declines with age, the more striking finding is that the crack-growth toughness declines even more significantly and is essentially absent in bone from donors exceeding 85 years in age. To explain such an age-induced deterioration in the toughness of bone, we evaluate its fracture properties at multiple length scales, specifically at the molecular and nanodimensions using pico-force atomic-force microscopy, nanoindentation and vibrational spectroscopies, at the microscale using electron microscopy and hard/soft x-ray computed …
Date:
February 1, 2006
Creator:
Ager, Joel; Balooch, G. & Ritchie, R. O.
Object Type:
Article
System:
The UNT Digital Library
Building Material Characterization Using a Concrete Floor and Wall Contamination Profiling Technology
Certain radioisotopes can penetrate concrete and contaminate the concrete well below the surface. The challenge is to determine the extent and magnitude of the contamination problem in real-time. The concrete profiling technology, TRUPROSM in conjunction with portable radiometric instrumentation produces a profile of radiological or chemical contamination through the material being studied. The data quality, quantity, and representativeness may be used to produce an activity profile from the hot spot surface into the material being sampled. This activity profile may then be expanded to ultimately characterize the facility and expedite waste segregation and facility closure at a reduced cost and risk. Performing a volumetric concrete or metal characterization safer and faster (without lab intervention) is the objective of this characterization technology. This way of determining contamination can save considerable time and money. Currently, concrete core bores are shipped to certified laboratories where the concrete residue is run through a battery of tests to determine the contaminants. The existing core boring operation volatilizes or washes out some of the contaminants (like tritium) and oftentimes cross-contaminates the area around the core bore site. The volatilization of the contaminants can lead to airborne problems in the immediate vicinity of the core bore. Cross-contamination …
Date:
February 27, 2003
Creator:
Aggarwal, S.; Charters, G. & Thacker, D.
Object Type:
Article
System:
The UNT Digital Library