Month

Advanced Flywheel Composite Rotors (open access)

Advanced Flywheel Composite Rotors

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses advanced flywheel composite rotors as part of the "Low-Cost, High-Energy Density Flywheel Storage Grid Demonstration" project.
Date: May 18, 2012
Creator: Boeing Aerospace Company
Object Type: Text
System: The UNT Digital Library
Flow-Assisted Alkaline Battery (open access)

Flow-Assisted Alkaline Battery

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses the enhancement of consumer-grade disposable batteries as part of the "Low-Cost Grid-Scale Electrical Storage using a Flow-Assisted Rechargeable Zinc-Manganese Dioxide Battery" project.
Date: May 18, 2012
Creator: City University of New York. Energy Institute.
Object Type: Text
System: The UNT Digital Library
Fuel-Free Compressed-Air Energy Storage (open access)

Fuel-Free Compressed-Air Energy Storage

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses a renewable energy storage system as part of the "Fuel-Free, Ubiquitous Compressed-Air Energy Storage and Power Conditioning" project.
Date: May 18, 2012
Creator: General Compression
Object Type: Text
System: The UNT Digital Library
An Experiment to Locate the Site of TeV Flaring in M87 (open access)

An Experiment to Locate the Site of TeV Flaring in M87

We describe a Chandra X-ray target-of-opportunity project designed to isolate the site of TeV flaring in the radio galaxy M87. To date, we have triggered the Chandra observations only once (2010 April) and by the time of the first of our nine observations, the TeV flare had ended. However, we found that the X-ray intensity of the unresolved nucleus was at an elevated level for our first observation. Of the more than 60 Chandra observations we have made of the M87 jet covering nine years, the nucleus was measured at a comparably high level only three times. Two of these occasions can be associated with TeV flaring, and at the time of the third event, there were no TeV monitoring activities. From the rapidity of the intensity drop of the nucleus, we infer that the size of the emitting region is of order a few light days x the unknown beaming factor; comparable to the same sort of estimate for the TeV emitting region. We also find evidence of spectral evolution in the X-ray band which seems consistent with radiative losses affecting the non-thermal population of the emitting electrons within the unresolved nucleus.
Date: May 18, 2012
Creator: Harris, D. E.; Massaro, F.; Cheung, C. C.; Horns, D.; Raue, M.; Stawarz, L. et al.
Object Type: Article
System: The UNT Digital Library
Fire Protection Program Manual (open access)

Fire Protection Program Manual

This manual documents the Lawrence Livermore National Laboratory (LLNL) Fire Protection Program. Department of Energy (DOE) Orders 420.1B, Facility Safety, requires LLNL to have a comprehensive and effective fire protection program that protects LLNL personnel and property, the public and the environment. The manual provides LLNL and its facilities with general information and guidance for meeting DOE 420.1B requirements. The recommended readers for this manual are: fire protection officers, fire protection engineers, fire fighters, facility managers, directorage assurance managers, facility coordinators, and ES and H team members.
Date: May 18, 2012
Creator: Sharry, J A
Object Type: Report
System: The UNT Digital Library
Grid-Scale Rampable Intermittent Dispatchable Storage (open access)

Grid-Scale Rampable Intermittent Dispatchable Storage

Advanced Research Projects Agency-Energy project sheet summarizing general information about the 12 projects that are a part of the Innovative Materials and Processes for Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including project goals, innovation needs, and potential impacts.
Date: May 18, 2012
Creator: United States. Advanced Research Projects Agency-Energy.
Object Type: Text
System: The UNT Digital Library
Breakthrough Flow Battery Cell Stack (open access)

Breakthrough Flow Battery Cell Stack

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses a more efficient flow battery as part of the "Transformative Electrochemical Flow Storage System (TEFSS)" project.
Date: May 18, 2012
Creator: United Technologies Research Center
Object Type: Text
System: The UNT Digital Library
ARM Climate Research Facility Radar Operations Plan (open access)

ARM Climate Research Facility Radar Operations Plan

Roles, responsibilities, and processes associated with Atmospheric Radiation Measurement (ARM) Radar Operations.
Date: May 18, 2012
Creator: Voyles, JW
Object Type: Text
System: The UNT Digital Library
Status of the Super-B factory Design (open access)

Status of the Super-B factory Design

The SuperB international team continues to optimize the design of an electron-positron collider, which will allow the enhanced study of the origins of flavor physics. The project combines the best features of a linear collider (high single-collision luminosity) and a storage-ring collider (high repetition rate), bringing together all accelerator physics aspects to make a very high luminosity of 10{sup 36} cm{sup -2} sec{sup -1}. This asymmetric-energy collider with a polarized electron beam will produce hundreds of millions of B-mesons at the Y(4S) resonance. The present design is based on extremely low emittance beams colliding at a large Piwinski angle to allow very low {beta}{sub y} without the need for ultra short bunches. Use of crab-waist sextupoles will enhance the luminosity, suppressing dangerous resonances and allowing for a higher beam-beam parameter. The project has flexible beam parameters, improved dynamic aperture, and spin-rotators in the Low Energy Ring for longitudinal polarization of the electron beam at the Interaction Point. Optimized for best colliding-beam performance, the facility may also provide high-brightness photon beams for synchrotron radiation applications.
Date: May 18, 2012
Creator: Wittmer, W.; U., /Michigan State; Bertsche, K.; Chao, A.; Novokhatski, A.; Nosochkov, Y. et al.
Object Type: Article
System: The UNT Digital Library
Synchrotron Light Options at Super-B (open access)

Synchrotron Light Options at Super-B

None
Date: May 18, 2012
Creator: Wittmer, Walter; Nosochkov, Yuri; Novokhatski, Alexander; Seeman, John; Sullivan, Michael; Biagini, Maria Enrica et al.
Object Type: Article
System: The UNT Digital Library
Final Technical Report: First Principles Investigations for the Ensemble Effects of PdAu and PtAu Bimetallic Nanocatalysts (open access)

Final Technical Report: First Principles Investigations for the Ensemble Effects of PdAu and PtAu Bimetallic Nanocatalysts

Bimetallic surfaces with tunable chemical properties have attracted broad attention in recent years due to their ample potential for heterogeneous catalysis applications. The local chemical properties of constituents are strongly altered from their parent metals by 'ligand effect', a term encompassing the influences of charge transfer, orbital rehybridization and lattice strain. In comparison to the aforementioned, the 'ensemble effect' associated with particular arrangements of the active constituents have received much less attention, despite their notable importance towards the determination of reactivity and selectivity of bimetallic catalysts. We performed theoretical studies for understanding the ensemble effects on bimetallic catalysis: (i) simulations for the formation of different ensembles on PdAu and PtAu nanoclusters; (ii) studies of the size, shape, and substrate dependence of their electronic properties; and (iii) simulations for model reactions such as CO oxidation, methanol, ethylene and water dehydrogenation on PdAu and PtAu nanoclusters. In close collaboration with leading experimental groups, our theoretical research elucidated the fundamentals of Au based bimetallic nanocatalysts.
Date: May 18, 2012
Creator: Wu, Ruqian
Object Type: Report
System: The UNT Digital Library
Contribution to the development of DOE ARM Climate Modeling Best Estimate Data (CMBE) products: Satellite data over the ARM permanent and AMF sites: Final Report (open access)

Contribution to the development of DOE ARM Climate Modeling Best Estimate Data (CMBE) products: Satellite data over the ARM permanent and AMF sites: Final Report

To support the LLNL ARM infrastructure team Climate Modeling Best Estimate (CMBE) data development, the University of North Dakota (UND)'s group will provide the LLNL team the NASA CERES and ISCCP satellite retrieved cloud and radiative properties for the periods when they are available over the ARM permanent research sites. The current available datasets, to date, are as follows: the CERES/TERRA during 200003-200812; the CERES/AQUA during 200207-200712; and the ISCCP during 199601-200806. The detailed parameters list below: (1) CERES Shortwave radiative fluxes (net and downwelling); (2) CERES Longwave radiative fluxes (upwelling) - (items 1 & 2 include both all-sky and clear-sky fluxes); (3) CERES Layered clouds (total, high, middle, and low); (4) CERES Cloud thickness; (5) CERES Effective cloud height; (6) CERES cloud microphysical/optical properties; (7) ISCCP optical depth cloud top pressure matrix; (8) ISCCP derived cloud types (r.g., cirrus, stratus, etc.); and (9) ISCCP infrared derived cloud top pressures. (10) The UND group shall apply necessary quality checks to the original CERES and ISCCP data to remove suspicious data points. The temporal resolution for CERES data should be all available satellite overpasses over the ARM sites; for ISCCP data, it should be 3-hourly. The spatial resolution is the closest …
Date: May 18, 2012
Creator: Xie, B; Dong, X & Xie, S
Object Type: Report
System: The UNT Digital Library