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Day
Heavy Flavor decays and light hadrons in the FOCUS experiment: Recent results
None
Date:
April 1, 2008
Creator:
Malvezzi, Sandra & /INFN, Milan Bicocca
Object Type:
Article
System:
The UNT Digital Library
Supersymmetry Searches at the Tevatron
None
Date:
June 1, 2008
Creator:
Strologas, John
Object Type:
Article
System:
The UNT Digital Library
RHIC RF Harmonic Numbers for Low Energy Operations
There have been several test runs of RHIC operations to explore the feasibility of luminosity production at low energies. There is considerable international interest in the possible existence of a QCD phase diagram critical point in the RHIC gold-gold collision energy range of {radical}s{sub NN} = 5-50 GeV[l, 2, 3]. This paper reviews the RF harmonic number constraints for RHIC gold-gold collisions in this energy range, and concludes that optimal simultaneous collisions at both experiments are only feasible when the harmonic number is divisible by 9.
Date:
May 1, 2008
Creator:
Satogata, T.
Object Type:
Report
System:
The UNT Digital Library
Geothermal Tomorrow 2008
Brochure describing the recent activities and future research direction of the DOE Geothermal Program.
Date:
September 1, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Stereo soft x-ray microscopy and elemental mapping of hematite and clay suspensions
The spatial arrangements of hematite particles within aqueous soil and clay samples are investigated with soft X-ray microscopy, taking advantage of the elemental contrast at the Fe-L edge around E = 707 eV. In combination with stereo microscopy, information about spatial arrangements are revealed and correlated to electrostatic interactions of the different mixtures. Manipulation of a sample mounted to the microscope is possible and particles added while imaging can be detected.
Date:
September 1, 2008
Creator:
Gleber, S.-C.; Thieme, J.; Chao, W. & Fischer, P.
Object Type:
Article
System:
The UNT Digital Library
U.S. Department of Energy Wind and Hydropower Technologies: Top 10 Program Accomplishments
This brochure describes the top ten accompishments of the DOE Wind Energy Program during the past 30 years.
Date:
May 1, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Session: CSP Advanced Systems -- Advanced Overview
The project description is: (1) it supports crosscutting activities, e.g. advanced optical materials, that aren't tied to a single CSP technology and (2) it supports the 'incubation' of new concepts in preliminary stages of investigation.
Date:
April 1, 2008
Creator:
Mehos, M.
Object Type:
Presentation
System:
The UNT Digital Library
Survival of Juvenile Chinook Salmon Passing the Bonneville Dam Spillway in 2007
The U.S. Army Corps of Engineers Portland District (CENWP) funds numerous evaluations of fish passage and survival on the Columbia River. In 2007, the CENWP asked Pacific Northwest National Laboratory to conduct an acoustic telemetry study to estimate the survival of juvenile Chinook salmon passing the spillway at Bonneville Dam. This report documents the study results which are intended to be used to improve the conditions juvenile anadromous fish experience when passing through the dams that the Corps operates on the river.
Date:
December 1, 2008
Creator:
Ploskey, Gene R.; Weiland, Mark A.; Hughes, James S.; Zimmerman, Shon A.; Durham, Robin E.; Fischer, Eric S. et al.
Object Type:
Report
System:
The UNT Digital Library
Innovations in Wind and Solar PV Financing
There is growing national interest in renewable energy development based on the economic, environmental, and security benefits that these resources provide. Historically, greater development of our domestic renewable energy resources has faced a number of hurdles, primarily related to cost, regulation, and financing. With the recent sustained increase in the costs and associated volatility of fossil fuels, the economics of renewable energy technologies have become increasingly attractive to investors, both large and small. As a result, new entrants are investing in renewable energy and new business models are emerging. This study surveys some of the current issues related to wind and solar photovoltaic (PV) energy project financing in the electric power industry, and identifies both barriers to and opportunities for increased investment.
Date:
February 1, 2008
Creator:
Cory, K.; Coughlin, J.; Jenkin, T.; Pater, J. & Swezey, B.
Object Type:
Report
System:
The UNT Digital Library
NGNP Process Heat Utilization: Liquid Metal Phase Change Heat Exchanger
One key long-standing issue that must be overcome to fully realize the successful growth of nuclear power is to determine other benefits of nuclear energy apart from meeting the electricity demands. The Next Generation Nuclear Plant (NGNP) will most likely be producing electricity and heat for the production of hydrogen and/or oil retrieval from oil sands and oil shale to help in our national pursuit of energy independence. For nuclear process heat to be utilized, intermediate heat exchange is required to transfer heat from the NGNP to the hydrogen plant or oil recovery field in the most efficient way possible. Development of nuclear reactor - process heat technology has intensified the interest in liquid metals as heat transfer media because of their ideal transport properties. Liquid metal heat exchangers are not new in practical applications. An important rational for considering liquid metals is the potential convective heat transfer is among the highest known. Thus explains the interest in liquid metals as coolant for intermediate heat exchange from NGNP. For process heat it is desired that, intermediate heat exchangers (IHX) transfer heat from the NGNP in the most efficient way possible. The production of electric power at higher efficiency via the …
Date:
September 1, 2008
Creator:
Sabharwall, Piyush; Patterson, Mike; Utgikar, Vivek & Gunnerson, Fred
Object Type:
Article
System:
The UNT Digital Library
Recapitalizing EMSL: Meeting Future Science and Technology Challenges
EMSL, located in Richland, Washington, is a national scientific user facility operated for the U.S. Department of Energy (DOE) by the Pacific Northwest National Laboratory. The vision that directed the development of EMSL as a problem-solving environment for environmental molecular science has led to significant scientific progress in many areas ranging from subsurface science to atmospheric sciences, and from biochemistry to catalysis. Our scientific staff and users are recognized nationally and internationally for their significant contributions to solving challenging scientific problems. We have explored new scientific frontiers and organized a vibrant and diverse user community in support of our mission as a national scientific user facility that provides integrated experimental and computational resources in the environmental molecular sciences. Users from around the world - from academia to industry and national laboratories to international research organizations - use the resources of EMSL because of the quality of science that we enable.
Date:
July 1, 2008
Creator:
Felmy, Andrew R.
Object Type:
Report
System:
The UNT Digital Library
Effects of Temporal Wind Patterns on the Value of Wind-Generated Electricity in California and the Northwest
Wind power production is variable, but also has diurnal and seasonal patterns. These patterns differ between sites, potentially making electric power from some wind sites more valuable for meeting customer loads or selling in wholesale power markets. This paper investigates whether the timing of wind significantly affects the value of electricity from sites in California and the Northwestern United States. We use both measured and modeled wind data and estimate the time-varying value of wind power with both financial and load-based metrics. We find that the potential difference in wholesale market value between better-correlated and poorly correlated wind sites is modest, on the order of 5-10 percent. A load-based metric, power production during the top 10 percent of peak load hours, varies more strongly between sites, suggesting that the capacity value of different wind projects could vary by as much as 50 percent based on the timing of wind alone.
Date:
May 1, 2008
Creator:
Wiser, Ryan H; Wiser, Ryan H & Fripp, Matthias
Object Type:
Article
System:
The UNT Digital Library
Cosmological Analysis From Large-Scale Anisotropic Correlation Function of the Sloan Digital Sky Survey
None
Date:
March 1, 2008
Creator:
Okumura, Teppei & U., /Nagoya
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Update on Mechanical Analysis of Monolithic Fuel Plates
Results on the relative bond strength of the fuel-clad interface in monolithic fuel plates have been presented at previous RRFM conferences. An understanding of mechanical properties of the fuel, cladding, and fuel / cladding interface has been identified as an important area of investigation and quantification for qualification of monolithic fuel forms. Significant progress has been made in the area of mechanical analysis of the monolithic fuel plates, including mechanical property determination of fuel foils, cladding processed by both hot isostatic pressing and friction bonding, and the fuel-clad composite. In addition, mechanical analysis of fabrication induced residual stress has been initiated, along with a study to address how such stress can be relieved prior to irradiation. Results of destructive examinations and mechanical tests are presented along with analysis and supporting conclusions. A brief discussion of alternative non-destructive evaluation techniques to quantify not only bond quality, but also bond integrity and strength, will also be provided. These are all necessary steps to link out-of-pile observations as a function of fabrication with in-pile behaviours.
Date:
March 1, 2008
Creator:
Burkes, D. E.; Rice, F. J.; Jue, J.-F. & Hallinan, N. P.
Object Type:
Article
System:
The UNT Digital Library
Metal oxide coating of carbon supports for supercapacitor applications.
The global market for wireless sensor networks in 2010 will be valued close to $10 B, or 200 M units. TPL, Inc. is a small Albuquerque based business that has positioned itself to be a leader in providing uninterruptible power supplies in this growing market with projected revenues expected to exceed $26 M in 5 years. This project focused on improving TPL, Inc.'s patent-pending EnerPak{trademark} device which converts small amounts of energy from the environment (e.g., vibrations, light or temperature differences) into electrical energy that can be used to charge small energy storage devices. A critical component of the EnerPak{trademark} is the supercapacitor that handles high power delivery for wireless communications; however, optimization and miniaturization of this critical component is required. This proposal aimed to produce prototype microsupercapacitors through the integration of novel materials and fabrication processes developed at New Mexico Technology Research Collaborative (NMTRC) member institutions. In particular, we focused on developing novel ruthenium oxide nanomaterials and placed them into carbon supports to significantly increase the energy density of the supercapacitor. These improvements were expected to reduce maintenance costs and expand the utility of the TPL, Inc.'s device, enabling New Mexico to become the leader in the growing global …
Date:
July 1, 2008
Creator:
Boyle, Timothy J.; Tribby, Louis, J.; Lakeman, Charles D. E.; Han, Sang M.; Lambert, Timothy N. & Fleig, Patrick F.
Object Type:
Report
System:
The UNT Digital Library
Decays of B_s Mesons and b Baryons: A Review of Recent First Observations and Branching Fractions
Recent rate measurements of B{sub s}{sup 0} mesons and {Lambda}{sub b}{sup 0} baryons produced in {radical}s = 1.96 TeV proton-antiproton and {Upsilon}(5S) electron-positron collisions are reviewed, including the first observations of six new decay modes: B{sub s}{sup 0} {yields} D{sub s}{sup +} K{sup -} (CDF), B{sub s}{sup 0} {yields} D{sub s}{sup -} D{sub s}{sup +} (CDF), B{sub s}{sup 0} {yields} D{sub s1}{sup -}(2536){mu}{sup +} {nu}{sub {mu}} X (DZero), B{sub s}{sup 0} {yields} {phi}{gamma} (Belle)< {Lambda}{sub b}{sup 0} {yields} p{pi}{sup -} (CDF), and {Lambda}{sub b}{sup 0} {yields} pK{sup -} (CDF). Also examined are branching-fraction measurements or limits for the B{sub s}{sup 0} {yields} D{sub s}{sup (*)} D{sub s}{sup (*)} modes (Belle, CDF, and DZero), the B{sub s}{sup 0} {yields} {gamma}{gamma} radiative penguin decay (Belle), and three two-body charmless B{sub s}{sup 0} meson decay channels (CDF). Implications for the phenomenology of electroweak and QCD physics, as well as searches for physics beyond the Standard Model, are identified where applicable.
Date:
June 1, 2008
Creator:
Warburton, Andreas
Object Type:
Article
System:
The UNT Digital Library
GIS Method for Developing Wind Supply Curves
This report describes work conducted by the National Renewable Energy Laboratory (NREL) as part of the Wind Technology Partnership (WTP) sponsored by the U.S. Environmental Protection Agency (EPA). This project has developed methods that the National Development and Reform Commission (NDRC) intends to use in the planning and development of China's 30 GW of planned capacity. Because of China's influence within the community of developing countries, the methods and the approaches here may help foster wind development in other countries.
Date:
June 1, 2008
Creator:
Kline, D.; Heimiller, D. & Cowlin, S.
Object Type:
Report
System:
The UNT Digital Library
Stability Issues of Transparent Conducting Oxides (TCOs) for Thin-Film Photovoltaics (Presentation)
Study of stability issues of TCOs for thin-film PV, including degradation of optical, electrical, and structural properties of TCOs in damp heat and required encapsulation to prevent moisture egress.
Date:
December 1, 2008
Creator:
Pern, J.
Object Type:
Presentation
System:
The UNT Digital Library
Facility Closure Report for T-Tunnel (U12t), Area 12, Nevada Test Site, Nevada
This Facility Closure Report (FCR) has been prepared to document the actions taken to permanently close the remaining accessible areas of U12t-Tunnel (T-Tunnel) in Area 12 of the Nevada Test Site (NTS). The closure of T-Tunnel was a prerequisite to transfer facility ownership from the Defense Threat Reduction Agency (DTRA) to the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO). Closure of the facility was accomplished with the cooperation and concurrence of both NNSA/NSO and the Nevada Division of Environmental Protection (NDEP). The purpose of this FCR is to document that the closure of T-Tunnel complied with the closure requirements specified in the Facility Closure Plan for N- and T-Tunnels Area 12, Nevada Test Site (Appendix D) and that the facility is ready for transfer to NNSA/NSO. The Facility Closure Plan (FCP) is provided in Appendix D. T-Tunnel is located approximately 42 miles north of Mercury in Area 12 of the NTS (Figure 1). Between 1970 and 1987, T-Tunnel was used for six Nuclear Weapons Effects Tests (NWETs). The tunnel was excavated horizontally into the volcanic tuffs of Rainier Mesa. The T-Tunnel complex consists of a main access drift with two NWET containment structures, a Gas …
Date:
August 1, 2008
Creator:
National Security Technologies, LLC
Object Type:
Report
System:
The UNT Digital Library
CSI: Dognapping workshop : an outreach experiment designed to produce students that are hooked on science.
The CSI: Dognapping Workshop is a culmination of the more than 65 Sandian staff and intern volunteers dedication to exciting and encouraging the next generation of scientific leaders. This 2 hour workshop used a 'theatrical play' and 'hands on' activities that was fun, exciting and challenging for 3rd-5th graders while meeting science curriculum standards. In addition, new pedagogical methods were developed in order to introduce nanotechnology to the public. Survey analysis indicated that the workshop had an overall improvement and positive impact on helping the students to understand concepts from materials science and chemistry as well as increased our interaction with the K-5 community. Anecdotal analyses showed that this simple exercise will have far reaching impact with the results necessary to maintain the United States as the scientific leader in the world. This experience led to the initiation of over 100 Official Junior Scientists.
Date:
April 1, 2008
Creator:
Boyle, Timothy J.; Gorman, Anna K.; Pratt, Harry D., III; Hernandez-Sanchez, Bernadette A.; Lambert, Timothy N.; Ottley, Leigh Anna M. et al.
Object Type:
Report
System:
The UNT Digital Library
Economic Benefits, Carbon Dioxide (CO2) Emissions Reductions, and Water Conservation Benefits from 1,000 Megawatts (MW) of New Wind Power in Wisconsin (Fact Sheet)
The U.S. Department of Energy?s Wind Powering America Program is committed to educating state-level policymakers and other stakeholders about the economic, CO2 emissions, and water conservation impacts of wind power. This analysis highlights the expected impacts of 1000 MW of wind power in Wisconsin. Although construction and operation of 1000 MW of wind power is a significant effort, six states have already reached the 1000-MW mark. We forecast the cumulative economic benefits from 1000 MW of development in Wisconsin to be $1.1 billion, annual CO2 reductions are estimated at 3.2 million tons, and annual water savings are 1,476 million gallons.
Date:
October 1, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Exosporium of B.cereus Contains a Binding Site for gC1qR/p33: Implication in Spore Attachment and/or Entry
B. cereus, is a member of a genus of aerobic, gram-positive, spore-forming rod-like bacilli, which includes the deadly, B. anthracis. Preliminary experiments have shown that gC1qR binds to B.cereus spores that have been attached to microtiter plates. The present studies were therefore undertaken, to examine if cell surface gC1qR plays a role in B.cereus spore attachment and/or entry. Monolayers of human colon carcinoma (Caco-2) and lung cells were grown to confluency on 6 mm coverslips in shell vials with gentle swirling in a shaker incubator. Then, 2 {micro}l of a suspension of strain SB460 B.cereus spores (3x10{sup 8}/ml, in sterile water), were added and incubated (1-4 h; 36{sup 0} C) in the presence or absence of anti-gC1qR mAb-carbon nanoloops. Examination of these cells by EM revealed that: (1) When B. cereus endospores contacted the apical Caco-2 cell surface, or lung cells, gClqR was simultaneously detectable, indicating upregulation of the molecule. (2) In areas showing spore contact with the cell surface, gClqR expression was often adjacent to the spores in association with microvilli (Caco-2 cells) or cytoskeletal projections (lung cells). (3) Furthermore, the exosporia of the activated and germinating spores were often decorated with mAb-nanoloops. These observations were further corroborated by …
Date:
January 1, 2008
Creator:
Ghebrehiwet, Berhane; Tantral, Lee; Titmus, Matthew A.; Panessa-Warren, Barbara J.; Tortora, George T.; Wong, Stanislaus S. et al.
Object Type:
Book
System:
The UNT Digital Library
Steam System Efficiency Optimized After J.R. Simplot Fertilizer Plant Receives Energy Assessment
This case study describes how the J.R. Simplot company's Don Plant in Pocatello, Idaho, achieved annual savings of $335,000 and 75,000 MMBtu, with a simple payback of 6.5 months, after receiving a DOE Save Energy Now energy assessment.
Date:
July 1, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
NC pi0 Production in the MiniBooNE Antineutrino Data
None
Date:
January 1, 2008
Creator:
Nguyen, V.T.
Object Type:
Article
System:
The UNT Digital Library