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4-wave mixing for phase-matching free nonlinear optics in quantum cascade structures : LDRD 08-0346 final report.

Description: Optical nonlinearities and quantum coherences have the potential to enable efficient, high-temperature generation of coherent THz radiation. This LDRD proposal involves the exploration of the underlying physics using intersubband transitions in a quantum cascade structure. Success in the device physics aspect will give Sandia the state-of-the-art technology for high-temperature THz quantum cascade lasers. These lasers are useful for imaging and spectroscopy in medicine and national defense. Suc… more
Date: October 1, 2010
Creator: Chow, Weng Wah; Wanke, Michael Clement; Allen, Dan G.; Yang, Zhenshan & Waldmueller, Ines
Item Type: Refine your search to only Report
open access

100 LPW 800 Lm Warm White LED

Description: An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in l… more
Date: October 31, 2010
Creator: Sun, Decai
Item Type: Refine your search to only Report
open access

The 2007-2009 Recession: Similarities to and Differences from the Past

Description: According to the National Bureau of Economic Research (NBER), the U.S. economy was in a recession for 18 months from December 2007 to June 2009. It was the longest and deepest recession of the post-World War II era. This report provides information on the patterns found across past recessions since World War II to gauge whether and how this recession might be different.
Date: October 6, 2010
Creator: Labonte, Marc
Item Type: Refine your search to only Report
open access

2008 East Tennessee Technology Park Annual Illness and Injury Surveillance Report

Description: The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: October 26, 2010
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report

3D Thermal and Electrochemical Model for Spirally Wound Large Format Lithium-ion Batteries

Description: In many commercial cells, long tabs at both cell sides, leading to uniform potentials along the spiral direction of wound jelly rolls, are rarely seen because of their high manufacturing cost. More often, several metal strips are welded at discrete locations along both current collector foils. With this design, the difference of electrical potentials is easily built up along current collectors in the spiral direction. Hence, the design features of the tabs, such as number, location and size, ca… more
Date: October 14, 2010
Creator: Lee, K. J.; Kim, G. H. & Smith, K.
Item Type: Refine your search to only Presentation
open access

Accelerated Vehicle Retirement Programs in Japan and South Korea: Background for Congress

Description: This report discusses the accelerated vehicle retirement (AVR) programs initiated in 2009 by the United States, Japan, South Korea, and other industrial nations (commonly known in the U.S. as the "cash for clunkers" program). The U.S. program began in June 2009, when President Obama signed the Consumer Assistance to Recycle and Save (CARS) Act. The report discusses how these various AVR programs affected the automobile industries in the U.S., Japan, and South Korea, specifically. Neither Japan … more
Date: October 26, 2010
Creator: Canis, Bill; Grimmett, Jeanne J.; Platzer, Michaela D. & Yacobucci, Brent D.
Item Type: Refine your search to only Report
open access

ACE3P Computations of Wakefield Coupling in the CLIC Two-Beam Accelerator

Description: The Compact Linear Collider (CLIC) provides a path to a multi-TeV accelerator to explore the energy frontier of High Energy Physics. Its novel two-beam accelerator concept envisions rf power transfer to the accelerating structures from a separate high-current decelerator beam line consisting of power extraction and transfer structures (PETS). It is critical to numerically verify the fundamental and higher-order mode properties in and between the two beam lines with high accuracy and confidence.… more
Date: October 27, 2010
Creator: Candel, Arno; Li, Z.; Ng, C.; Rawat, V.; Schussman, G.; Ko, K. et al.
Item Type: Refine your search to only Article
open access

Active infrared materials for beam steering.

Description: The mid-infrared (mid-IR, 3 {micro}m -12 {micro}m) is a highly desirable spectral range for imaging and environmental sensing. We propose to develop a new class of mid-IR devices, based on plasmonic and metamaterial concepts, that are dynamically controlled by tunable semiconductor plasma resonances. It is well known that any material resonance (phonons, excitons, electron plasma) impacts dielectric properties; our primary challenge is to implement the tuning of a semiconductor plasma resonance… more
Date: October 1, 2010
Creator: Brener, Igal; Reno, John Louis; Passmore, Brandon Scott; Gin, Aaron V.; Shaner, Eric Arthur; Miao, Xiaoyu et al.
Item Type: Refine your search to only Report
open access

Advanced analysis methods in particle physics

Description: Each generation of high energy physics experiments is grander in scale than the previous - more powerful, more complex and more demanding in terms of data handling and analysis. The spectacular performance of the Tevatron and the beginning of operations of the Large Hadron Collider, have placed us at the threshold of a new era in particle physics. The discovery of the Higgs boson or another agent of electroweak symmetry breaking and evidence of new physics may be just around the corner. The gre… more
Date: October 1, 2010
Creator: Bhat, Pushpalatha C.
Item Type: Refine your search to only Article
open access

Advanced Fuels Campaign Execution Plan

Description: The purpose of the Advanced Fuels Campaign (AFC) Execution Plan is to communicate the structure and management of research, development, and demonstration (RD&D) activities within the Fuel Cycle Research and Development (FCRD) program. Included in this document is an overview of the FCRD program, a description of the difference between revolutionary and evolutionary approaches to nuclear fuel development, the meaning of science-based development of nuclear fuels, and the “Grand Challenge” for t… more
Date: October 1, 2010
Creator: Pasamehmetoglu, Kemal
Item Type: Refine your search to only Report
open access

Advanced Gasification Mercury/Trace Metal Control with Monolith Traps

Description: Two Corning monoliths and a non-carbon-based material have been identified as potential additives for mercury capture in syngas at temperatures above 400°F and pressure of 600 psig. A new Corning monolith formulation, GR-F1-2189, described as an active sample appeared to be the best monolith tested to date. The Corning SR Liquid monolith concept continues to be a strong candidate for mercury capture. Both monolith types allowed mercury reduction to below 5-μg/m{sup 3} (~5 ppb), a current U.S. D… more
Date: October 5, 2010
Creator: Musich, Mark; Swanson, Michael; Dunham, Grant & Stanislowski, Joshua
Item Type: Refine your search to only Report
open access

Advanced Unit Commitment Strategies for the U.S. Eastern Interconnection: Preprint

Description: This paper outlines a study undertaken for the U.S. Eastern Interconnection in which different advanced unit commitment strategies were simulated for three different years to evaluate the benefits that may occur from using these strategies as an operational tool.
Date: October 1, 2010
Creator: Ela, E.; Milligan, M.; Meibom, P.; Barth, R. & Tuohy, A.
Item Type: Refine your search to only Article
open access

ADVANCING REACTIVE TRACER METHODS FOR MONITORING THERMAL DRAWDOWN IN GEOTHERMAL ENHANCED GEOTHERMAL RESERVOIRS

Description: Reactive tracers have long been considered a possible means of measuring thermal drawdown in a geothermal system, before significant cooling occurs at the extraction well. Here, we examine the sensitivity of the proposed method to evaluate reservoir cooling and demonstrate that while the sensitivity of the method as generally proposed is low, it may be practical under certain conditions.
Date: October 1, 2010
Creator: Plummer, Mitchell A.; Palmer, Carl D.; Mattson, Earl D.; Redden, George D. & Hull, Laurence C.
Item Type: Refine your search to only Article
open access

Aerogel Derived Nanostructured Thermoelectric Materials

Description: America’s dependence on foreign sources for fuel represents a economic and security threat for the country. These non renewable resources are depleting, and the effects of pollutants from fuels such as oil are reaching a problematic that affects the global community. Solar concentration power (SCP) production systems offer the opportunity to harness one of the United States’ most under utilized natural resources; sunlight. While commercialization of this technology is increasing, in order to be… more
Date: October 8, 2010
Creator: Rhine, Wendell E.; Dong, Wenting & Caggiano, Greg
Item Type: Refine your search to only Report
open access

Aerosol cluster impact and break-up : model and implementation.

Description: In this report a model for simulating aerosol cluster impact with rigid walls is presented. The model is based on JKR adhesion theory and is implemented as an enhancement to the granular (DEM) package within the LAMMPS code. The theory behind the model is outlined and preliminary results are shown. Modeling the interactions of small particles is relevant to a number of applications (e.g., soils, powders, colloidal suspensions, etc.). Modeling the behavior of aerosol particles during agglomerati… more
Date: October 1, 2010
Creator: Lechman, Jeremy B.
Item Type: Refine your search to only Report
open access

Afghanistan and Iraq: DOD Should Improve Adherence to Its Guidance on Open Pit Burning and Solid Waste Management

Description: A letter report issued by the Government Accountability Office with an abstract that begins "From the start of military operations in Afghanistan and Iraq, the U.S. military and its contractors have burned solid waste in open burn pits on or near military bases. According to the Department of Defense (DOD), burn pit emissions can potentially harm human health. U.S. Central Command (CENTCOM) guidance directs the military's use of burn pits, and the Department of Veterans' Affairs (VA) provides h… more
Date: October 15, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Afghanistan Casualties: Military Forces and Civilians

Description: This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001, and is ongoing. OEF actions take place primarily in Afghanistan, but OEF casualties also include American casualties in other countries, listed within this report.
Date: October 28, 2010
Creator: Chesser, Susan G.
Item Type: Refine your search to only Report
open access

Afghanistan: Politics, Elections, and Government Performance

Description: This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date: October 13, 2010
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
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