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3,409 Matching Results
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Preliminary Evaluation of the Impact of the Section 1603 Treasury Grant Program on Renewable Energy Deployment in 2009
Federal support for renewable energy deployment in the United States has traditionally been delivered primarily through tax benefits, including the production tax credit ('PTC') in Section 45 of the U.S. tax code, investment tax credits ('ITC') in Sections 25D and 48, and accelerated tax depreciation in Section 168. Many renewable power project developers are unable to use the majority of these tax benefits directly or immediately, however, and have therefore often relied on third-party 'tax equity' investors for the necessary investment capital in order to monetize the available tax benefits. As has been well-publicized, most of these tax equity investors were hit hard by the global financial crisis that unfolded in the last months of 2008 and, as a result, most either withdrew from the renewable power market at that time or reduced their available investment capital. This left a significant financing gap beginning in late 2008, and placed at some risk the continued near-term growth of renewable energy supply in the U.S. In recognition of these developments, the U.S. Congress passed two stimulus bills - The Energy Improvement and Extension Act ('the Extension Act') in October 2008 and The American Recovery and Reinvestment Act ('the Recovery Act') in February …
Date:
March 31, 2010
Creator:
Bolinger, Mark; Wiser, Ryan & Darghouth, Naim
Object Type:
Report
System:
The UNT Digital Library
The Prospects of Alternatives to Vapor Compression Technology for Space Cooling and Food Refrigeration Applications
Five alternatives to vapor compression technology were qualitatively evaluated to determine their prospects for being better than vapor compression for space cooling and food refrigeration applications. The results of the assessment are summarized in the report. Overall, thermoacoustic and magnetic technologies were judged to have the best prospects for competing with vapor compression technology, with thermotunneling, thermoelectric, and thermionic technologies trailing behind in that order.
Date:
March 31, 2010
Creator:
Brown, Daryl R.; Dirks, James A.; Fernandez, Nicholas & Stout, Tyson E.
Object Type:
Report
System:
The UNT Digital Library
The Rambler (Fort Worth, Tex.), Vol. 93, No. 9, Ed. 1 Wednesday, March 31, 2010
Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date:
March 31, 2010
Creator:
Resendez, Jonathan
Object Type:
Newspaper
System:
The Portal to Texas History
REMOVAL OF CESIUM FROM SAVANNAH RIVER SITE WASTE WITH SPHERICAL RESORCINOL FORMALDEHYDE ION EXCHANGE RESIN EXPERIMENTAL TESTS
A principal goal at the Savannah River Site (SRS) is to safely dispose of the large volume of liquid nuclear waste held in many storage tanks. In-tank ion exchange (IX) columns are being considered for cesium removal. The spherical form of resorcinol formaldehyde ion exchange resin (sRF) is being evaluated for decontamination of dissolved saltcake waste at SRS, which is generally lower in potassium and organic components than Hanford waste. The sRF performance with SRS waste was evaluated in two phases: resin batch contacts and IX column testing with both simulated and actual dissolved salt waste. The tests, equipment, and results are discussed.
Date:
March 31, 2010
Creator:
Duignan, M. & Nash, C.
Object Type:
Article
System:
The UNT Digital Library
Research, Development and Demonstration of Micro-CHP System for Residential Applications
ECR International and its joint venture company, Climate Energy, are at the forefront of the effort to deliver residential-scale combined heat and power (Micro-CHP) products to the USA market. Part of this substantial program is focused on the development of a new class of steam expanders that offers the potential for significantly lower costs for small-scale power generation technology. The heart of this technology is the scroll expander, a machine that has revolutionized the HVAC refrigerant compressor industry in the last 15 years. The liquid injected cogeneration (LIC) technology is at the core of the efforts described in this report, and remains an excellent option for low cost Micro-CHP systems. ECR has demonstrated in several prototype appliances that the concept for LIC can be made into a practical product. The continuing challenge is to identify economical scroll machine designs that will meet the performance and endurance requirements needed for a long life appliance application. This report describes the numerous advances made in this endeavor by ECR International. Several important advances are described in this report. Section 4 describes a marketing and economics study that integrates the technical performance of the LIC system with real-world climatic data and economic analysis to …
Date:
March 31, 2010
Creator:
Mayer, Karl
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 95, No. 140, Ed. 1 Wednesday, March 31, 2010
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 31, 2010
Creator:
Shance, Brenda
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
ScalaTrace: Tracing, Analysis and Modeling of HPC Codes at Scale
Characterizing the communication behavior of large-scale applications is a difficult and costly task due to code/system complexity and their long execution times. An alternative to running actual codes is to gather their communication traces and then replay them, which facilitates application tuning and future procurements. While past approaches lacked lossless scalable trace collection, we contribute an approach that provides orders of magnitude smaller, if not near constant-size, communication traces regardless of the number of nodes while preserving structural information. We introduce intra- and inter-node compression techniques of MPI events, we develop a scheme to preserve time and causality of communication events, and we present results of our implementation for BlueGene/L. Given this novel capability, we discuss its impact on communication tuning and on trace extrapolation. To the best of our knowledge, such a concise representation of MPI traces in a scalable manner combined with time-preserving deterministic MPI call replay are without any precedence.
Date:
March 31, 2010
Creator:
Mueller, F; Wu, X; Schulz, M; de Supinski, B & Gamblin, T
Object Type:
Article
System:
The UNT Digital Library
Some Considerations Regarding Pulsed Correction of Chromatic Aberrations in Final Focusing Systems
Nearly all designs of accelerators for heavy ion fusion rely on a velocity (energy) ramp to compress the beam longitudinally from its length in the accelerator to the length required at the target. The size of the velocity ramp is constrained by the longitudinal emittance of the beam. For example, if the longitudinal emittance is 0.05 eV {center_dot} s and we wish to produce a pulse having a width of {+-}2.5 ns at the target, we must supply an energy tilt such that the energy spread at the target is at least {+-}0.05 eV {center_dot} s/2.5 ns = {+-}2 x 10{sup 7} eV. The minimal value of energy spread occurs when the beam has propagated to the point where there is no correlation between the time and energy variables of the beam particles. (In the simple approximation where the boundary of the longitudinal phase space containing the particles is an ellipse, the ellipse is erect at this point, i.e., not tilted with respect to the axes.) In any case, the energy spread can affect focusing. If, for example, the beam kinetic energy is of the order of 5 GeV, a tilt of {+-}2 x 10{sup 7} eV corresponds to a …
Date:
March 31, 2010
Creator:
Bangerter, Roger
Object Type:
Report
System:
The UNT Digital Library
Stability of modulation transfer function calibration of surface profilometers using binary pseudo-random gratings and arrays with nonideal groove shapes
The major problem of measurement of a power spectral density (PSD) distribution of surface heights with surface profilometers arises due to the unknown Modulation Transfer Function (MTF) of the instruments, which tends to distort the PSD at higher spatial frequencies. The special mathematical properties of binary pseudo-random patterns make them an ideal basis for developing MTF calibration test surfaces. Two-dimensional binary pseudo-random arrays (BPRAs) have been fabricated and used for the MTF calibration of the MicroMap{trademark}-570 interferometric microscope with all available objectives. An investigation into the effects of fabrication imperfections on the quality of the MTF calibration and a procedure for accounting for such imperfections are presented.
Date:
March 31, 2010
Creator:
Barber, Samuel K.; Anderson, Erik H.; Cambie, Rossana; Marchesini, Stefano; McKinney, Wayne R.; Takacs, Peter Z. et al.
Object Type:
Article
System:
The UNT Digital Library
STEM Focus in Innoventure Competition Theme
This report documents the inclusion of the STEM focus in the annual competition theme for the Innoventure youth project. The STEM concepts have always played a part in the selection of the theme. However, this year, STEM is intentionally mentioned in the description of the theme to emphasize the importance of these concepts. This work is a part of the National Security Preparedness Project (NSPP), being performed under a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant.
Date:
March 31, 2010
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 116, Ed. 1 Wednesday, March 31, 2010
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Traditional story about step-parenthood
This a traditional story about step-parenthood: the mother of two children (with the names Rengso and Onso) dies and the father marries again; the new stepmother is evil and mistreats her step-children, whereupon the father does not know what to do and both abandons his children in the jungle and kills his wife.
Date:
March 31, 2010
Creator:
Konnerth, Linda
Object Type:
Video
System:
The UNT Digital Library
Traditional story about step-parenthood
This a traditional story about step-parenthood: the mother of two children (with the names Rengso and Onso) dies and the father marries again; the new stepmother is evil and mistreats her step-children, whereupon the father does not know what to do and both abandons his children in the jungle and kills his wife.
Date:
March 31, 2010
Creator:
Konnerth, Linda
Object Type:
Sound
System:
The UNT Digital Library
Traditional story about two twin girls being brought up by tigers
This a traditional story about two twin girls (hingchong musoso) that are born to the human wife of a king, who also has a second wife who is a witch. The witch is jealous and abandons the girls, who are subsequently brought up by tigers. After having grown up, they return to their father’s kingdom and tell their story. The father learns the truth, the witch dies, and the reunited family lives happily ever after.
Date:
March 31, 2010
Creator:
Konnerth, Linda
Object Type:
Sound
System:
The UNT Digital Library
Traditional story about two twin girls being brought up by tigers
This a traditional story about two twin girls (hingchong musoso) that are born to the human wife of a king, who also has a second wife who is a witch. The witch is jealous and abandons the girls, who are subsequently brought up by tigers. After having grown up, they return to their father’s kingdom and tell their story. The father learns the truth, the witch dies, and the reunited family lives happily ever after.
Date:
March 31, 2010
Creator:
Konnerth, Linda
Object Type:
Video
System:
The UNT Digital Library
[TSDC Transaction Detail By Account and General Ledger]
Texas Stonewall Democratic Caucus transaction detail by account of $667.50 from January through March 2010. General ledger of all the financial transactions as of March 31, 2010.
Date:
March 31, 2010
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
U.S. Immigration Policy on Haitian Migrants
This report discusses whether the balance should tip more toward humanitarian immigration policies as a consequence of the humanitarian crises that resulted from the January 12, 2010 earthquake in Haiti.
Date:
March 31, 2010
Creator:
Wasem, Ruth Ellen
Object Type:
Report
System:
The UNT Digital Library
U.S.-Mexico Economic Relations: Trends, Issues, and Implications
This report provides an overview of U.S.-Mexico trade and economic trends, the Mexican economy, the effects of the North American Free Trade Agreement (NAFTA), and major trade issues between the United States and Mexico.
Date:
March 31, 2010
Creator:
Villarreal, M. Angeles
Object Type:
Report
System:
The UNT Digital Library
VA Health Care: VA Has Taken Steps to Make Services Available to Women Veterans, but Needs to Revise Key Policies and Improve Oversight Processes
A letter report issued by the Government Accountability Office with an abstract that begins "In 2008, VA provided health care to over 281,000 women veterans, a fast growing subgroup of veterans. Women veterans seeking VA health care need access to an array of services and Congress has raised concerns about how well VA is prepared to meet the physical and mental health care needs of women. GAO was asked to examine (1) the on-site availability of health care services at VA facilities for women veterans, (2) the extent to which VA facilities are following VA policies that apply to the delivery of health care to women veterans, and (3) key challenges that VA facilities face in providing health care to women veterans and how VA is addressing these challenges. GAO reviewed applicable laws and VA policies, interviewed officials, and visited a judgmental sample of 9 VA medical centers (VAMC) and 10 community-based outpatient clinics (CBOC) chosen, in part, based on the number of women using services. GAO also visited 10 VA counseling centers (Vet Centers)."
Date:
March 31, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Věstník (Temple, Tex.), Vol. 98, No. 13, Ed. 1 Wednesday, March 31, 2010
Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date:
March 31, 2010
Creator:
Zavodny, Melanie
Object Type:
Newspaper
System:
The Portal to Texas History
Water adsorption, solvation and deliquescence of alkali halide thin films on SiO2 studied by ambient pressure X-ray photoelectron spectroscopy
The adsorption of water on KBr thin films evaporated onto SiO2 was investigated as a function of relative humidity (RH) by ambient pressure X-ray photoelectron spectroscopy. At 30percent RH adsorbed water reaches a coverage of approximately one monolayer. As the humidity continues to increase, the coverage of water remains constant or increases very slowly until 60percent RH, followed by a rapid increase up to 100percent RH. At low RH a significant number of the Br atoms are lost due to irradiation damage. With increasing humidity solvation increases ion mobility and gives rise to a partial recovery of the Br/K ratio. Above 60percent RH the increase of the Br/K ratio accelerates. Above the deliquescence point (85percent RH), the thickness of the water layer continues to increase and reaches more than three layers near saturation. The enhancement of the Br/K ratio at this stage is roughly a factor 2.3 on a 0.5 nm KBr film, indicating a strong preferential segregation of Br ions to the surface of the thin saline solution on SiO2.
Date:
March 31, 2010
Creator:
Arima, Kenta; Jiang, Peng; Deng, Xingyi; Bluhm, Henrik & Salmeron, Miquel
Object Type:
Article
System:
The UNT Digital Library
Wide Area Security Region Final Report
This report develops innovative and efficient methodologies and practical procedures to determine the wide-area security region of a power system, which take into consideration all types of system constraints including thermal, voltage, voltage stability, transient and potentially oscillatory stability limits in the system. The approach expands the idea of transmission system nomograms to a multidimensional case, involving multiple system limits and parameters such as transmission path constraints, zonal generation or load, etc., considered concurrently. The security region boundary is represented using its piecewise approximation with the help of linear inequalities (so called hyperplanes) in a multi-dimensional space, consisting of system parameters that are critical for security analyses. The goal of this approximation is to find a minimum set of hyperplanes that describe the boundary with a given accuracy. Methodologies are also developed to use the security hyperplanes, pre-calculated offline, to determine system security margins in real-time system operations, to identify weak elements in the system, and to calculate key contributing factors and sensitivities to determine the best system controls in real time and to assist in developing remedial actions and transmission system enhancements offline . A prototype program that automates the simulation procedures used to build the set of security …
Date:
March 31, 2010
Creator:
Makarov, Yuri V.; Lu, Shuai; Guo, Xinxin; Gronquist, James; Du, Pengwei; Nguyen, Tony B. et al.
Object Type:
Report
System:
The UNT Digital Library
Workforce Planning: Interior, EPA, and the Forest Service Should Strengthen Linkages to Their Strategic Plans and Improve Evaluation
A letter report issued by the Government Accountability Office with an abstract that begins "GAO and others have shown that successful organizations use strategic workforce planning to help meet present and future mission requirements. Although agency approaches to strategic workforce planning can vary depending on needs and mission, GAO and the Office of Personnel Management have identified six leading principles that workforce planning should address. The Appropriations Committees directed GAO to review workforce planning at the Department of the Interior (Interior), the Environmental Protection Agency (EPA), and the Department of Agriculture's Forest Service. GAO examined (1) workforce planning processes used at each agency, (2) the extent to which these processes incorporate the six principles, and (3) how, if at all, the agencies link workforce planning with the annual budget allocation processes. GAO reviewed agencies' workforce plans, strategic plans, and budget documents and interviewed human resources, planning, and budget officials."
Date:
March 31, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 62, No. 46, Ed. 1 Wednesday, March 31, 2010
Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date:
March 31, 2010
Creator:
Engbrock, Chad B.
Object Type:
Newspaper
System:
The Portal to Texas History