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Charm and beauty production at CDF

Description: Using the data samples collected with the CDF Run II detector during 2002 and early 2003, new measurements of the production cross sections of charm and beauty hadrons at {radical}s = 1960 GeV are presented. New measurements of the cross sections of centrally produced b-hadrons and J/{psi} mesons down to zero transverse momenta have been carried out. The large charm signals made available by the silicon vertex track trigger have enabled the measurement of the cross sections of D{sup 0}, D*, D{s… more
Date: January 1, 2005
Creator: Bishai, M.
Item Type: Refine your search to only Article
open access

Chilled Mirror Dew Point Hygrometer (CM) Handbook

Description: The CM systems have been developed for the ARM Program to act as a moisture standard traceable to National Institute of Standards and Technology (NIST). There are three CM systems that are each fully portable, self-contained, and require only 110 V AC power. The systems include a CM sensor, air sampling and filtration system, a secondary reference (Rotronic HP043 temperature and relative humidity sensor) to detect system malfunctions, a data acquisition system, and data storage for more than on… more
Date: January 1, 2005
Creator: Ritsche, MT
Item Type: Refine your search to only Report
open access

CIGS Thin-Film Solar Cell Research at NREL: FY04 Results and Accomplishments

Description: This short paper is a summary of our investigations in three major areas: high-efficiency CuInGaSe2 (CIGS) solar cells, junctions made using chemical bath deposited ZnS(O,OH) buffer layers, and solar cells fabricated from thinner absorbers. Significant progress was made in all areas. We describe how our research has contributed to the fundamental understanding and the practical application of CIGS materials to high performance solar cells.
Date: January 1, 2005
Creator: Ramanathan, K.; Bhattacharya, R. N.; Contreras, M. A.; Hasoon, F. S.; Abushama, J. & Noufi, R.
Item Type: Refine your search to only Article
open access

CITRIC ACID AS A SET RETARDER FOR CALCIUM ALUMINATE PHOSPHATE CEMENTS.

Description: Citric acid added as set retarder significantly contributed to enhancing the setting temperature and to extending the thickening time of a calcium aluminate phosphate (CaP) geothermal cement slurry consisting of calcium aluminate cement (CAC) as the base reactant and sodium polyphosphate (NaP) solution as the acid reactant. The set-retarding activity of citric acid was due to the uptake of Ca{sup 2+} ions from the CAC by carboxylic acid groups within the citric acid. This uptake led to the prec… more
Date: January 1, 2005
Creator: SUGAMA,T. & BROTHERS, L. E.
Item Type: Refine your search to only Report
open access

Cold-Climate Solar Domestic Hot Water Systems: Cost/Benefit Analysis and Opportunities for Improvement

Description: To determine potential for reduction in the cost of saved energy (COSE) for cold-climate solar domestic hot water (SDHW) systems, COSE was computed for three types of cold climate water heating systems. For each system, a series of cost-saving measures was considered: (1) balance of systems (BOS): tank, heat exchanger, and piping-valving measures; and (2) four alternative lower-cost collectors. Given all beneficial BOS measures in place, >50% reduction of COSE was achievable only with select… more
Date: January 1, 2005
Creator: Burch, J.; Hillman, T. & Salasovich, J.
Item Type: Refine your search to only Article
open access

Collective instabilities in the Tevatron Complex

Description: Although the luminosity growth for Tevatron Run II was slower than expected, steady growth of luminosity has been demonstrated during the last three years with the peak luminosity of 1.02 x 10{sup 32} cm{sup -2} s{sup -1} achieved in July 2004. Suppression of instabilities has been a valuable contributor to the luminosity growth. This report discusses the transverse instabilities in the Tevatron and Recycler.
Date: January 1, 2005
Creator: Lebedev, V. & Burov, A.
Item Type: Refine your search to only Article
open access

Combining a thermal-imaging diagnostic with an existing imaging VISAR diagnostic at the National Ignition Facility (NIF)

Description: Optical diagnostics are currently being designed to analyze high-energy density physics experiments at the National Ignition Facility (NIF). Two independent line-imaging Velocity Interferometer System for Any Reflector (VISAR) interferometers have been fielded to measure shock velocities, breakout times, and emission of targets having sizes of 1–5 mm. An 8-inch-diameter, fused silica triplet lens collects light at f/3 inside the 30-foot-diameter NIF vacuum chamber. VISAR recordings use a 659.5-… more
Date: 2005~
Creator: Malone, Robert M.; Celesteb, John R.; Celliers, Peter M.; Froggeta, Brent C.; Guyton, Robert L.; Kaufman, Morris I. et al.
Item Type: Refine your search to only Article
open access

Comments on Landau damping due to synchrotron frequency spread

Description: An inductive/space-charge impedance shifts the synchrotron frequency downwards above/below transition, but it is often said that the coherent synchrotron frequency of the bunch is not shifted in the rigid-dipole mode. On the other hand, the incoherent synchrotron frequency due to the sinusoidal rf always spreads in the downward direction. This spread will therefore not be able to cover the coherent synchrotron frequency, implying that there will not be any Landau damping no matter how large the… more
Date: January 1, 2005
Creator: Ng, K. Y.
Item Type: Refine your search to only Report

Commission on Systemic Interoperability

Description: The Commission on Systemic Interoperability was authorized by the Medicare Modernization Act and established by the Secretary of Health and Human Services. Its members were appointed by the President of the United States of America and the leaders of the 108th United States Congress, and it held its first meeting on January 10, 2005.
Date: 2005
Creator: Commission on Systemic Interoperability
Item Type: Refine your search to only Website
open access

Computation of Dancoff Factors for Fuel Elements Incorporating Randomly Packed TRISO Particles

Description: A new method for estimating the Dancoff factors in pebble beds has been developed and implemented within two computer codes. The first of these codes, INTRAPEB, is used to compute Dancoff factors for individual pebbles taking into account the random packing of TRISO particles within the fuel zone of the pebble and explicitly accounting for the finite geometry of the fuel kernels. The second code, PEBDAN, is used to compute the pebble-to-pebble contribution to the overall Dancoff factor. The lat… more
Date: January 1, 2005
Creator: Kloosterman, J. L. & Ougouag, Abderrafi M.
Item Type: Refine your search to only Report
open access

Conductive Atomic Free Microscopy of CdTe/CdS Solar Cells

Description: Conductive atomic force microscopy (C-AFM) is a recently developed technique that applies an electric voltage between a very sharp tip and the sample, permitting the study of the electrical properties of the sample with very high spatial resolution. It also provides current-voltage measurements at well-defined spots. C-AFM is applied simultaneously with atomic force microscopy, providing topographic and current images of the same region. In this work, we analyze CdTe/CdS samples, before and aft… more
Date: January 1, 2005
Creator: Moutinho, H. R.; Dhere, R. G.; Jiang, C. S.; Al-Jassim, M. M. & Kazmerski, L. L.
Item Type: Refine your search to only Article
open access

Conductivity Analysis of Membranes for High-Temperature PEMFC Applications

Description: Low-temperature operation requirements for per-fluorinated membranes are one factor that limits the viability of current fuel cell technology for transportation and other uses. Because of this, high-temperature membrane materials are being researched. The protonic conductivity of organic/inorganic hybrid composites, Nafion® analog material, and heteropoly acid doped Nafion membranes were studied using a BekkTech® conductivity test cell as a hydrogen pump. The goal was to find a high-temperature… more
Date: January 1, 2005
Creator: Reed, R. & Turner, J.A.
Item Type: Refine your search to only Article
open access

Corrective Action Investigation Plan for Corrective Action Unit 219: Septic Systems and Injection Wells, Nevada Test Site, Nevada, Rev. No.: 0

Description: The Corrective Action Investigation Plan for Corrective Action Unit 219, Septic Systems and Injection Wells, has been developed in accordance with the ''Federal Facility Agreement and Consent Order'' (1996) that was agreed to by the State of Nevada, the U.S. Department of Energy, and the U.S. Department of Defense. The purpose of the investigation is to ensure that adequate data are collected to provide sufficient and reliable information to identify, evaluate, and select technically viable cor… more
Date: January 1, 2005
Creator: Strand, David A.
Item Type: Refine your search to only Report
open access

Corrective Action Investigation Plan for Corrective Action Unit 552: Area 12 Muckpile and Ponds, Nevada Test Site, Nevada, Rev. 1

Description: Corrective Action Unit 552 is being investigated because man-made radionuclides and chemical contaminants may be present in concentrations that could potentially pose an unacceptable risk to human health and/or the environment. The CAI will be conducted following the data quality objectives (DQOs) developed by representatives of the Nevada Division of Environmental Protection (NDEP) and the DOE National Nuclear Security Administration Nevada Site Office (NNSA/NSO). The DQOs are used to identify… more
Date: January 1, 2005
Creator: Boehlecke, Robert F.
Item Type: Refine your search to only Report
open access

Corrective Action Investigation Plan for Corrective Action Unit 552: Area 12 Muckpile and Ponds, Nevada Test Site, Nevada, Rev. No.: 1 with ROTC 1 and 2

Description: This Corrective Action Investigation Plan (CAIP) contains project-specific information including facility descriptions, environmental sample collection objectives, and criteria for conducting site investigation activities at Corrective Action Unit (CAU) 552: Area 12 Muckpile and Ponds, Nevada Test Site (NTS), Nevada. This CAIP has been developed in accordance with the ''Federal Facility Agreement and Consent Order'' (FFACO) (1996) that was agreed to by the State of Nevada, the U.S. Department o… more
Date: January 1, 2005
Creator: Strand, David A.
Item Type: Refine your search to only Report
open access

Correlation of DLTS and Performance of GaInNAs Cells

Description: A four-junction GaInP/GaAs/GaInAsN/Ge solar cell should be able to reach 40% efficiency if each of the junctions can be made with a quality similar to that demonstrated for GaAs. However, the GaInAsN subcell has shown poor performance. Deep-level transient spectroscopy (DLTS) can elucidate recombination centers in a material and could help identify the problem with the GaInAsN. So far, DLTS studies of GaInAsN have shown many peaks. In this paper we compare the performance of the GaInAsN solar c… more
Date: January 1, 2005
Creator: Kurtz, S.; Johnston, S.; Friedman, D.; Ptak, A.; Geisz, J.; McMahon, W. et al.
Item Type: Refine your search to only Article
open access

Corrosion probes for fireside monitoring in coal-fired boilers

Description: Corrosion probes are being developed and combined with an existing measurement technology to provide a tool for assessing the extent of corrosion of metallic materials on the fireside in coal-fired boilers. The successful development of this technology will provide power plant operators the ability to (1) accurately monitor metal loss in critical regions of the boiler, such as waterwalls, superheaters, and reheaters; and (2) use corrosion rates as process variables. In the former, corrosion dat… more
Date: January 1, 2005
Creator: Covino, Bernard S., Jr.; Bullard, Sophie J.; Ziomek-Moroz, M. & Holcomb, Gordon R.
Item Type: Refine your search to only Article
open access

Cotton Study: Albumin Binding and its Effect on Elastase Activity in the Chronic Non-Healing Wound

Description: Cotton, as it is used in wound dressings is composed of nearly pure cellulose. During the wound-healing process, cotton is exposed to various blood components including water, salts, cells, and blood proteins. Albumin is the most prominent protein in blood. Elastase is an enzyme secreted by white blood cells and takes an active role in tissue reconstruction. In the chronic non-healing wound, elastase is often over-expressed such that this enzyme digests tissue and growth factors, and interferes… more
Date: January 1, 2005
Creator: Castro, N. & Goheen, S.
Item Type: Refine your search to only Article
open access

The Cryogenic Dark Matter Search and Background Rejection with Event Position Information

Description: Evidence from observational cosmology and astrophysics indicates that about one third of the universe is matter, but that the known baryonic matter only contributes to the universe at 4%. A large fraction of the universe is cold and non-baryonic matter, which has important role in the universe structure formation and its evolution. The leading candidate for the non-baryonic dark matter is Weakly Interacting Massive Particles (WIMPs), which naturally occurs in the supersymmetry theory in particl… more
Date: January 1, 2005
Creator: Wang, Gen-sheng & U., /Case Western Reserve
Item Type: Refine your search to only Thesis or Dissertation
open access

D0 - anti-D0 hadronic mixing and DCS decays from FOCUS

Description: The authors present an analysis of the decay D{sup 0} {yields} K{sup +}{pi}{sup -} from FOCUS. From a sample of 234 events they find a branching ratio of {Lambda}(D{sup 0} {yields} K{sup +}{pi}{sup -})/{Lambda}(D{sup 0} {yields} K{sup -}{pi}{sup +}) = (0.430{sub -0.061}{sup +0.062} {+-} 0.031)% under the assumption of no mixing and no CP violation. They also present limits on charm mixing.
Date: January 1, 2005
Creator: Stenson, Kevin
Item Type: Refine your search to only Article
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