18 Matching Results

Search Results

Results: 1 - 18
open access

The QCD Phase Diagram: Large Nc, Quarkyonic Matter and the Triple Point

Description: I discuss the phase diagram of QCD in the large N_c limit. Quarkyonic Matter is described. The properties of QCD matter as measured in the abundance of produced particles are shown to be consistent with this phase diagram. A possible triple point of Hadronic Mater, Deconfined Matter and Quarkyonic matter is shown to explain various behaviors of ratios of particles abundances seen in CERN fixed target experiments.
Date: January 31, 2010
Creator: McLerran, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Southwestern Regional Partnership For Carbon Sequestration (Phase 2) Pump Canyon CO2- ECBM/Sequestration Demonstration, San Juan Basin, New Mexico

Description: Within the Southwest Regional Partnership on Carbon Sequestration (SWP), three demonstrations of geologic CO{sub 2} sequestration are being performed -- one in an oilfield (the SACROC Unit in the Permian basin of west Texas), one in a deep, unmineable coalbed (the Pump Canyon site in the San Juan basin of northern New Mexico), and one in a deep, saline reservoir (underlying the Aneth oilfield in the Paradox basin of southeast Utah). The Pump Canyon CO{sub 2}-enhanced coalbed methane (CO{sub 2}/… more
Date: January 31, 2010
Creator: Advanced Resources International
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Post-Closure Report for Closed Resource Conservation and Recovery Act Corrective Action Units, Nevada Test Site, Nevada, for Fiscal Year 2009

Description: This report serves as the combined annual report for post-closure activities for the following closed Corrective Action Units (CAUs): · CAU 90, Area 2 Bitcutter Containment · CAU 91, Area 3 U-3fi Injection Well · CAU 92, Area 6 Decon Pond Facility · CAU 110, Area 3 WMD U-3ax/bl Crater · CAU 112, Area 23 Hazardous Waste Trenches This report covers fiscal year 2009 (October 2008–September 2009). The post-closure requirements for these sites are described in Resource Conservation and Recovery Act … more
Date: January 31, 2010
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Novel Adsorbent-Reactants for Treatment of Ash and Scrubber Pond Effluents

Description: The overall goal of this project was to evaluate the ability of novel adsorbent/reactants to remove specific toxic target chemicals from ash and scrubber pond effluents while producing stable residuals for ultimate disposal. The target chemicals studied were arsenic (As(III) and As(V)), mercury (Hg(II)) and selenium (Se(IV) and Se(VI)). The adsorbent/reactants that were evaluated are iron sulfide (FeS) and pyrite (FeS{sub 2}). Procedures for measuring concentrations of target compounds and char… more
Date: January 31, 2010
Creator: Batchelor, Bill; Han, Dong Suk & Kim, Eun Jung
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coupling of the Photosphere to the Solar Corona: A laboratory and observational study of Alfvén wave interaction with a neutral gas

Description: The grant funded a three year project to investigate the role of Alfvén waves as a possible mechanism heating plasmas, with relevance to solar coronal heating. Evidence suggests that there is strong coupling between the solar photosphere, corona and solar wind through Alfvén wave interaction with the neutral gas particles. A laboratory experimental and solar observational plan was designed to investigate in detail this interaction. Although many of the original research goals were met, difficul… more
Date: January 31, 2010
Creator: Watts, Christopher
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Value-Added Products from FGD Sulfite-Rich Scrubber Materials

Description: According to the American Coal Ash Association, about 29.25 million tons of flue gas desulfurization (FGD) byproducts were produced in the USA in 2003. Out of 29.25 million tons, 17.35 million tons were sulfite-rich scrubber materials. At present, unlike its cousin FGD gypsum, the prospect for effective utilization of sulfite-rich scrubber materials is not bright. In fact, almost 16.9 million tons are leftover every year. In our pursuit to mitigate the liability of sulfite-rich FGD scrubber mat… more
Date: January 31, 2010
Creator: Malhotra, Vivak
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-Efficiency Nitride-Base Photonic Crystal Light Sources

Description: The research activities performed in the framework of this project represent a major breakthrough in the demonstration of Photonic Crystals (PhC) as a competitive technology for LEDs with high light extraction efficiency. The goals of the project were to explore the viable approaches to manufacturability of PhC LEDS through proven standard industrial processes, establish the limits of light extraction by various concepts of PhC LEDs, and determine the possible advantages of PhC LEDs over curren… more
Date: January 31, 2010
Creator: Speck, James; Hu, Evelyn; Weisbuch, Claude; Choi, Yong-Seok; McGroddy, Kelly; Koblmuller, Gregor et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Human-system Interfaces to Automatic Systems: Review Guidance and Technical Basis

Description: Automation has become ubiquitous in modern complex systems and commercial nuclear power plants are no exception. Beyond the control of plant functions and systems, automation is applied to a wide range of additional functions including monitoring and detection, situation assessment, response planning, response implementation, and interface management. Automation has become a 'team player' supporting plant personnel in nearly all aspects of plant operation. In light of the increasing use and imp… more
Date: January 31, 2010
Creator: Ohara, J. M. & Higgins, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Soft X-ray Spectrometer using a Highly Dispersive Multilayer Grating

Description: There is a need for higher resolution spectrometers as a tool for inelastic x-ray scattering. Currently, resolving power around R = 10,000 is advertised. Measured RIXS spectra are often limited by this instrumental resolution and higher resolution spectrometers using conventional gratings would be prohibitively large. We are engaged in a development program to build blazed multilayer grating structures for diffracting soft x-rays in high order. This leads to spectrometers with dispersion much h… more
Date: January 31, 2010
Creator: Warwick, Tony; Padmore, Howard; Voronov, Dmitriy & Yashchuk, Valeriy
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Successful Completion of the Top-off Upgrade of the Advanced Light Source

Description: An upgrade of the Advanced Light Source to enable top-off operation has been completed during the last four years. The final work centered around radiation safety aspects, culminating in a systematic proof that top-off operation is equally safe as decaying beam operation. Commissioning and transition to full user operations happened in late 2008 and early 2009. Top-off operation at the ALS provides a very large increase in time-averaged brightness (by about a factor of 10) as well as improvemen… more
Date: January 31, 2010
Creator: Steier, C.; Bailey, B.; Baptiste, K.; Barry, W.; Biocca, A.; Byrne, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A new Scanning Transmission X-ray Microscope at the ALS for operation up to 2500eV

Description: We report on the design and construction of a higher energy Scanning Transmission X-ray Microscope on a new bend magnet beam line at the Advanced Light Source. Previously we have operated such an instrument on a bend magnet for C, N and O 1s NEXAFS spectroscopy. The new instrument will have similar performance at higher energies up to and including the S 1s edge at 2472eV. A new microscope configuration is planned. A more open geometry will allow a fluorescence detector to count emitted photons… more
Date: January 31, 2010
Creator: Kilcoyne, David; Ade, Harald; Attwood, David; Hitchcock, Adam; McKean, Pat; Mitchell, Gary et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface Slope Metrology on Deformable Soft X-ray Mirrors

Description: We report on the current state of surface slope metrology on deformable mirrors for soft x-rays at the Advanced Light Source (ALS). While we are developing techniques for in situ at-wavelength tuning, we are refining methods of ex situ visible-light optical metrology to achieve sub-100-nrad accuracy. This paper reports on laboratory studies, measurements and tuning of a deformable test-KB mirror prior to its use. The test mirror was bent to a much different optical configuration than its origin… more
Date: January 31, 2010
Creator: Yuan, Sheng; Yashchuk, Valeriy V.; Goldberg, Kenneth A.; Celestre, Rich; Church, Matthew; McKinney, Wayne R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Very High Fuel Economy, Heavy Duty, Constant Speed, Truck Engine Optimized Via Unique Energy Recovery Turbines and Facilitated High Efficiency Continuously Variable Drivetrain

Description: The project began under a corporative agreement between Mack Trucks, Inc and the Department of Energy starting from September 1, 2005. The major objective of the four year project is to demonstrate a 10% efficiency gain by operating a Volvo 13 Litre heavy-duty diesel engine at a constant or narrow speed and coupled to a continuously variable transmission. The simulation work on the Constant Speed Engine started on October 1st. The initial simulations are aimed to give a basic engine model for t… more
Date: January 31, 2010
Creator: Habibzadeh, Bahman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Elliptically Bent X-ray Mirrors with Active Temperature Stabilization

Description: We present details of design of elliptically bent Kirkpatrick-Baez mirrors developed and successfully used at the Advanced Light Source for submicron focusing. A distinctive feature of the mirror design is an active temperature stabilization based on a Peltier element attached directly to the mirror body. The design and materials have been carefully optimized to provide high heat conductance between the mirror body and substrate. We describe the experimental procedures used when assembling and … more
Date: January 31, 2010
Creator: Yuan, Sheng; Church, Matthew; Yashchuk, Valeriy V.; Goldberg, Kenneth A.; Celestre, Rich; McKinney, Wayne R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced Start of Combustion Sensor Phases I and II-A: Feasibility Demonstration, Design and Optimization

Description: Homogeneous Compressed Charge Ignition (HCCI) has elevated the need for Start of Combustion (SOC) sensors. HCCI engines have been the exciting focus of engine research recently, primarily because HCCI offers higher thermal efficiency than the conventional Spark Ignition (SI) engines and significantly lower NOx and soot emissions than conventional Compression Ignition (CI) engines, and could be fuel neutral. HCCI has the potential to unify all the internal combustion engine technology to achieve… more
Date: January 31, 2010
Creator: Smutzer, Chad
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Performance Commercial Fenestration Framing Systems

Description: A major objective of the U.S. Department of Energy is to have a zero energy commercial building by the year 2025. Windows have a major influence on the energy performance of the building envelope as they control over 55% of building energy load, and represent one important area where technologies can be developed to save energy. Aluminum framing systems are used in over 80% of commercial fenestration products (i.e. windows, curtain walls, store fronts, etc.). Aluminum framing systems are often … more
Date: January 31, 2010
Creator: Manteghi, Mike; Kumar, Sneh; Early, Joshua & Adusumalli, Bhaskar
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis and Development of A Robust Fuel for Gas-Cooled Fast Reactors

Description: The focus of this effort was on the development of an advanced fuel for gas-cooled fast reactor (GFR) applications. This composite design is based on carbide fuel kernels dispersed in a ZrC matrix. The choice of ZrC is based on its high temperature properties and good thermal conductivity and improved retention of fission products to temperatures beyond that of traditional SiC based coated particle fuels. A key component of this study was the development and understanding of advanced fabricatio… more
Date: January 31, 2010
Creator: Knight, Travis W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen