Search Results

[Man at sound system during event]

Description: A photograph of a young man sitting at a light and sound table at the back of a classroom for an event. There are other people seated at tables around and in front of him.
Date: April 26, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Rushika Patel's India poster]

Description: A photograph of Rushika Patel standing next to a poster about India that she made. It is a tri-fold poster with pictures, maps, flags, and written information on it.
Date: April 13, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Two women at coloring event]

Description: A photograph of two women standing together in one of the classrooms on the UNT campus. They are both wearing purple outfits and there are tables and chairs in rows behind them. There is also a striped table cloth on a table beside them.
Date: April 1, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Two women coloring with markers]

Description: A photograph of two women coloring in one of the classrooms on the UNT campus. They are seated at a long row of tables and there are several markers for them to use. There are also blank papers, snacks, and drinks beside them. Other people are gathered at different tables around them.
Date: April 1, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Young woman's Japan poster]

Description: A photograph of a young woman standing next to a poster about Japan that she made. It is a tri-fold poster with pictures, maps, and information on it. There are also origami figures decorating it.
Date: April 13, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Women gathered in classroom]

Description: A photograph of young women seated in one of the classrooms on the UNT campus. They have papers on the tables in front of them and snacks and drinks.
Date: April 1, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

[Rushika Patel and woman with instruments]

Description: A photograph of Rushika Patel and another woman standing together in one of the rooms in the Multicultural Center offices. Patel is playing a type of flute and the other woman has a metal instrument. There is also something that resembles a xylophone past them.
Date: April 13, 2005
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections
open access

[Clipping: Give nukes a chance]

Description: Newspaper clipping outlining reasons the United States might consider using nuclear weapons in warfare; the article also mentions former President John F. Kennedy's stance on nuclear weapons during the Cuban Missile Crisis. There are red markings in pen that were made by Charles E. Reagan, Jr., during his research on President John F. Kennedy.
Date: April 24, 2005
Creator: Bennett, Drake
Partner: UNT Libraries Special Collections
open access

Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in p anti-p collisions at s**(1/2) = 1.8-TeV

Description: We present the first measurement of the A{sub 2} and A{sub 3} angular coefficients of the W boson produced in proton-antiproton collisions. We study W {yields} ev{sub e} and W {yields} {mu}{nu}{sub {mu}} candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at {radical}s = 1.8 TeV. The corresponding integrated luminosity was 110 pb{sup -1}. The jet balances the transverse momentum of the W and introduces QCD effects in W boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the W boson. The angular coefficients are measured as a function of the transverse momentum of the W boson. The electron, muon, and combined results are in good agreement with the Standard Model prediction, up to order {alpha}{sub s}{sup 2} in QCD.
Date: April 1, 2005
Creator: Acosta, D.; Affolder, Anthony A.; Albrow, M. G.; Ambrose, D.; Amidei, D.; Anikeev, K. et al.
Partner: UNT Libraries Government Documents Department
open access

Wind Energy Benefits

Description: Wind energy provides many benefits, including economic and environmental. This two-sided fact sheet succinctly outlines the top ten wind energy benefits and is especially well suited for general audiences.
Date: April 1, 2005
Partner: UNT Libraries Government Documents Department
open access

Characterization and Compensation of High Speed Digitizers

Description: Increasingly, ADC technology is being pressed into service for single single-shot instrumentation applications that were formerly served by vacuum-tube based oscilloscopes and streak cameras. ADC technology, while convenient, suffers significant performance impairments. Thus, in these demanding applications, a quantitative and accurate representation of these impairments is critical to an understanding of measurement accuracy. We have developed a phase-plane behavioral model, implemented it in SIMULINK and applied it to interleaved, high-speed ADCs (up to 4 gigasamples/sec). We have also developed and demonstrated techniques to effectively compensate for these impairments based upon the model.
Date: April 4, 2005
Creator: Fong, P; Teruya, A & Lowry, M
Partner: UNT Libraries Government Documents Department
open access

K0(s) and Lambda0 production studies in p anti-p collisions at s**(1/2) = 1800 and 630-GeV

Description: The authors present a study of the production of K{sub s}{sup 0} and {Lambda}{sup 0} in inelastic p{bar p} collisions at {radical}s = 1800 and 630 GeV using data collected by the CDF experiment at the Fermilab Tevatron. Analyses of K{sub s}{sup 0} and {Lambda}{sup 0} multiplicity and transverse momentum distributions, as well as of the dependencies of the average number and (p{sub T}) of K{sub s}{sup 0} and {Lambda}{sup 0} on charged particle multiplicity are reported. Systematic comparisons are performed for the full sample of inelastic collisions, and for the low and high momentum transfer subsamples, at the two energies. The p{sub T} distributions extend above 8 GeV/c, showing a (p{sub T}) higher than previous measurements. The dependence of the mean K{sub s}{sup 0}({Lambda}{sup 0}) p{sub T} on the charged particle multiplicity for the three samples shows a behavior analogous to that of charged primary tracks.
Date: April 1, 2005
Creator: Acosta, D.; Affolder, Anthony A.; Albrow, M. G.; Ambrose, D.; Amidei, D.; Anikeev, K. et al.
Partner: UNT Libraries Government Documents Department
open access

Background reduction in cryogenic detectors

Description: This paper discusses the background reduction and rejection strategy of the Cryogenic Dark Matter Search (CDMS) experiment. Recent measurements of background levels from CDMS II at Soudan are presented, along with estimates for future improvements in sensitivity expected for a proposed SuperCDMS experiment at SNOLAB.
Date: April 1, 2005
Creator: Bauer, Daniel A.
Partner: UNT Libraries Government Documents Department
open access

DOE Advanced Controls R&D Planning Workshop, June 11, 2003, Washington DC: Workshop Results

Description: On June 11, 2003, representatives from universities, federal and state government agencies, Department of Energy national laboratories, and the private sector attended a one-day workshop in Washington, DC. The objective of the workshop was to review and provide input into DOE's assessment of the market for advanced sensors and controls technology and potential R&D pathways to enhance their success in the buildings market place. The workshop consisted of two sessions. During the morning session, participants were given an overview on the following topics: market assessment, current applications and strategies for new applications, sensors and controls, networking, security, and protocols and standards, and automated diagnostics, performance measurement, commissioning and optimal control and tools. In the sessions, workshop participants were asked to review the potential R&D pathways, identify high priority activities, and outline a five year path for each of these activities. Priorities were as follows: largest and quickest impact; best use of finite resources; greatest likelihood for market penetration; and ability to replicate results. The participants identified several promising R&D opportunities.
Date: April 13, 2005
Creator: Brambley, Michael R.; Haves, Philip; McDonald, Sean C.; Torcellini, Paul; Hansen, David G.; Holmberg, David et al.
Partner: UNT Libraries Government Documents Department
open access

HUNTING THE QUARK GLUON PLASMA.

Description: The U.S. Department of Energy's Relativistic Heavy Ion Collider (RHIC) construction project was completed at BNL in 1999, with the first data-taking runs in the summer of 2000. Since then the early measurements at RHIC have yielded a wealth of data, from four independent detectors, each with its international collaboration of scientists: BRAHMS, PHENIX, PHOBOS, and STAR [1]. For the first time, collisions of heavy nuclei have been carried out at colliding-beam energies that have previously been accessible only for high-energy physics experiments with collisions of ''elementary'' particles such as protons and electrons. It is at these high energies that the predictions of quantum chromodynamics (QCD), the fundamental theory that describes the role of quarks and gluons in nuclear matter, come into play, and new phenomena are sought that may illuminate our view of the basic structure of matter on the sub-atomic scale, with important implications for the origins of matter on the cosmic scale. The RHIC experiments have recorded data from collisions of gold nuclei at the highest energies ever achieved in man-made particle accelerators. These collisions, of which hundreds of millions have now been examined, result in final states of unprecedented complexity, with thousands of produced particles radiating from the nuclear collision. All four of the RHIC experiments have moved quickly to analyze these data, and have begun to understand the phenomena that unfold from the moment of collision as these particles are produced. In order to provide benchmarks of simpler interactions against which to compare the gold-gold collisions, the experiments have gathered comparable samples of data from collisions of a very light nucleus (deuterium) with gold nuclei, as well as proton-proton collisions, all with identical beam energies and experimental apparatus. The early measurements have revealed compelling evidence for the existence of a new form of nuclear matter …
Date: April 11, 2005
Creator: LUDLAM, T. & ARONSON, S.
Partner: UNT Libraries Government Documents Department
open access

Energy End-Use Technologies for the 21st Century

Description: The World Energy Council's recent study examined the potential of energy end-use technologies and of research, development, and demonstration (RD&D) into these technologies on a global scale. Surprises are likely, but nevertheless, current research and development offer a picture of what might happen in the future as new technologies face the competition of the marketplace. Given the breadth of energy end-use technologies and the differences between regions and economic conditions, the study focused on technologies that appear most important from today's vantage point. Globally, robust research and development followed by demonstrations of new end-use technologies can potentially save at least 110 EJ/year by 2020 and over 300 EJ/year by 2050. If achieved, this translates to worldwide energy savings of as much as 25% by 2020 and over 40% by 2050, over what may be required without these technologies. It is almost certain that no single technology, or even a small set of technologies, will dominate in meeting the needs of the globe in any foreseeable timeframe. Absent a significant joint government-industry effort on end-use technology RD&D, the technologies needed will not be ready for the marketplace in the timeframes required with even the most pessimistic scenarios. Based on previous detailed analyses for the United States, an international expenditure of $4 billion per year seems more than justified. The success of new energy end-use technologies depends on new RD&D investments and policy decisions made today. Governments, in close cooperation with industry, must carefully consider RD&D incentives that can help get technologies from the laboratory or test-bed to market. Any short-term impact areas are likely to benefit from focused RD&D. These include electricity transmission and distribution, distributed electricity production, transportation, the production of paper and pulp, iron and steel, aluminum, cement and chemicals, and information and communication technologies. For long-term impact, significant …
Date: April 13, 2005
Creator: Gehl, S; Haegermark, H; Larsen, H; Morishita, M; Nakicenovic, N; Schock, R N et al.
Partner: UNT Libraries Government Documents Department
open access

Design a high-q optical cavity for the project of laser notching h- beam at 38.5 mhz

Description: Ray matrix formalism is used to represent a two-mirror resonator with a thermal lens in the middle. By tracking a ray vector, which starts from the place where the laser and H{sup -} beams intercept, through the optical cavity, the cavity property can be analyzed. The cavity design can be optimized in such a way that at the interception, the spacious jitter of the laser beam caused by the cavity misalignment is the minimum.
Date: April 1, 2005
Creator: Yang, Xi & Ankenbrandt, Charles M.
Partner: UNT Libraries Government Documents Department
open access

Seismic Monitoring for the United Arab Emirates

Description: There is potential for earthquakes in the United Arab Emirates and in the Zagros mountains to cause structural damage and pose a threat to safety of people. Damaging effects from earthquakes can be mitigated by knowledge of the location and size of earthquakes, effects on construction, and monitoring these effects over time. Although a general idea of seismicity in the UAE may be determined with data from global seismic networks, these global networks do not have the sensitivity to record smaller seismic events and do not have the necessary accuracy to locate the events. A National Seismic Monitoring Observatory is needed for the UAE that consists of a modern seismic network and a multidisciplinary staff that can analyze and interpret the data from the network. A seismic network is essential to locate earthquakes, determine event magnitudes, identify active faults and measure ground motions from earthquakes. Such a network can provide the data necessary for a reliable seismic hazard assessment in the UAE. The National Seismic Monitoring Observatory would ideally be situated at a university that would provide access to the wide range of disciplines needed in operating the network and providing expertise in analysis and interpretation.
Date: April 11, 2005
Creator: Rodgers, A. & Nakanishi, K.
Partner: UNT Libraries Government Documents Department
open access

FEASIBILITY STUDY FOR POTASSIUM IODIDE (KI) DISTRIBUTION IN NEW YORK CITY.

Description: The New York City Department of Health and Mental Hygiene (DOHMH), Bureau of Environmental Science and Engineering, Office of Radiological Health (ORH) [as the primary local technical consultant in the event of a radiological or nuclear incident within the boundaries of New York City] requested the assistance of Brookhaven National Laboratory (BNL) with the development of a Feasibility Study for Potassium Iodide (KI) distribution in the unlikely event of a significant release of radioactive iodine in or near New York City. Brookhaven National Laboratory had previously provided support for New York City with the development of the radiological/nuclear portions of its All Hazards Emergency Response Plans. The work is funded by Medical and Health Research Association (MHRA) of New York City, Inc., under a work grant by the Federal Centers for Disease Control (CDC) for Public Health Preparedness and Response for Bioterrorism. This report is part of the result of that effort. The conclusions of this report are that: (1) There is no credible radiological scenario that would prompt the need for large segments of the general population of New York City to take KI as a result of a projected plume exposure to radioiodine reaching even the lowest threshold of 5 rem to the thyroid; and (2) KI should be stockpiled in amounts and locations sufficient for use by first responders/emergency responders in response to any localized release of radioiodine.
Date: April 29, 2005
Creator: MOSS, STEVEN
Partner: UNT Libraries Government Documents Department
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