Border Business Indicators, Volume 34, Number 1, January 2010 (open access)

Border Business Indicators, Volume 34, Number 1, January 2010

Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.
Date: January 2010
Creator: Texas Center for Border Economic and Enterprise Development
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Wetland News, January 2010 (open access)

Texas Wetland News, January 2010

Newsletter published by the Texas Parks and Wildlife Department to provide news, updates, and other information specifically related to wetlands and their conservation in the state.
Date: January 2010
Creator: Texas. Parks and Wildlife Department.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Education Today, Volume 23, Number 3, January 2010 (open access)

Texas Education Today, Volume 23, Number 3, January 2010

Periodic newsletter issued by the Texas Education Agency providing updates about Texas State Board of Education meetings as well as agency news, announcements, and other information related to education.
Date: January 2010
Creator: Texas Education Agency
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Parks & Wildlife, Volume 68, Number 1, January 2010 (open access)

Texas Parks & Wildlife, Volume 68, Number 1, January 2010

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date: January 2010
Creator: Texas. Parks and Wildlife Department.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Panhandle Water News, January 2010 (open access)

Panhandle Water News, January 2010

Quarterly newsletter of the Panhandle Groundwater Conservation District discussing the news, activities, and events of the organization and other information related to water in Texas.
Date: January 2010
Creator: Panhandle Groundwater Conservation District
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Nonpoint Source Pollution Management Program Annual Report: 2009 (open access)

Texas Nonpoint Source Pollution Management Program Annual Report: 2009

Annual report of the Nonpoint Source Management Program in Texas describing goals, activities, and accomplishments during fiscal year 2009.
Date: January 2010
Creator: Texas Commission on Environmental Quality
Object Type: Report
System: The Portal to Texas History
Texas Highways, Volume 57, Number 1, January, 2010 (open access)

Texas Highways, Volume 57, Number 1, January, 2010

Monthly travel magazine discussing locations and events in Texas to encourage travel within the state.
Date: January 2010
Creator: Texas. Department of Transportation.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Exiting TARP and Unwinding Its Impact on the Financial Markets (open access)

Exiting TARP and Unwinding Its Impact on the Financial Markets

January report of the U.S. Congressional Oversight Panel describing their activities and findings regarding the winding down of the Troubled Asset Relief Program (TARP) and its impact on financial markets.
Date: January 14, 2010
Creator: United States. Congressional Oversight Panel.
Object Type: Report
System: The UNT Digital Library
Report of the 2nd National Ecosystem Modeling Workshop (NEMoW II) : Bridging the Credibility Gap - Dealing with Uncertainty in Ecosystem Models (open access)

Report of the 2nd National Ecosystem Modeling Workshop (NEMoW II) : Bridging the Credibility Gap - Dealing with Uncertainty in Ecosystem Models

The following document addresses the terms of reference (TOR) such that a group of scientists forming the National Ecosystem Modeling Workshops (NEMoWs) could explore the facets of ecosystem model (EM) uncertainty and make pragmatic suggestions of how the NMFS could proceed in its EM endeavors by dealing with uncertainty using a suite of "best practices" recommended herein.
Date: January 2010
Creator: Link, J. S.; Ihde, T. F.; Townsend, H. M.; Osgood, K. E.; Schirripa, M. J.; Kobayashi, D. R. et al.
Object Type: Report
System: The UNT Digital Library
Transportation News, Volume 35, Number 1, January-February 2010 (open access)

Transportation News, Volume 35, Number 1, January-February 2010

Newsletter published by the Texas Department of Transportation for TxDOT employees including information about the organization, projects throughout the state, and other topics related to transportation in Texas.
Date: 2010-01/2010-02
Creator: Texas. Department of Transportation.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
OncoLog, Volume 55, Number 1, January 2010 (open access)

OncoLog, Volume 55, Number 1, January 2010

Newsletter from the University of Texas System Cancer Center, M.D. Anderson Hospital and Tumor Institute discussing cancer care and research to inform physicians of recent developments in the field.
Date: January 2010
Creator: University of Texas M.D. Anderson Cancer Center
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
CIM-EARTH: Community Integrated Model of Economic and Resource Trajectories for Humankind. (open access)

CIM-EARTH: Community Integrated Model of Economic and Resource Trajectories for Humankind.

Climate change is a global problem with local climatic and economic impacts. Mitigation policies can be applied on large geographic scales, such as a carbon cap-and-trade program for the entire U.S., on medium geographic scales, such as the NOx program for the northeastern U.S., or on smaller scales, such as statewide renewable portfolio standards and local gasoline taxes. To enable study of the environmental benefits, transition costs, capitalization effects, and other consequences of mitigation policies, we are developing dynamic general equilibrium models capable of incorporating important climate impacts. This report describes the economic framework we have developed and the current Community Integrated Model of Economic and Resource Trajectories for Humankind (CIM-EARTH) instance.
Date: January 1, 2010
Creator: Elliott, J.; Foster, I.; Judd, K.; Moyer, E.; Munson, T.; Chicago, Univ. of et al.
Object Type: Report
System: The UNT Digital Library
Using wesBench to Study the Rendering Performance of Graphics Processing Units (open access)

Using wesBench to Study the Rendering Performance of Graphics Processing Units

Graphics operations consist of two broad operations. The first, which we refer to here as vertex operations, consists of transformation, lighting, primitive assembly, and so forth. The second, which we refer to as pixel or fragment operations, consist of rasterization, texturing, scissoring, blending, and fill. Overall GPU rendering performance is a function of throughput of both these interdependent stages: if one stage is slower than the other, the faster stage will be forced to run more slowly and overall rendering performance will be adversely affected. This relationship is commutative: if the later stage has a greater workload than the earlier stage, the earlier stage will be forced to 'slow down.' For example, a large triangle that covers many screen pixels will incur a very small amount of work in the vertex stage while at the same time incurring a relatively large amount of work in the fragment stage. Rendering performance of a scene consisting of many large-area triangles will be limited by throughput of the fragment stage, which will have relatively more work than the vertex stage. There are two main objectives for this document. First, we introduce a new graphics benchmark, wesBench, which is useful for measuring performance of …
Date: January 8, 2010
Creator: Bethel, Edward W
Object Type: Report
System: The UNT Digital Library
Elastic properties of Pu metal and Pu-Ga alloys (open access)

Elastic properties of Pu metal and Pu-Ga alloys

We present elastic properties, theoretical and experimental, of Pu metal and Pu-Ga ({delta}) alloys together with ab initio equilibrium equation-of-state for these systems. For the theoretical treatment we employ density-functional theory in conjunction with spin-orbit coupling and orbital polarization for the metal and coherent-potential approximation for the alloys. Pu and Pu-Ga alloys are also investigated experimentally using resonant ultrasound spectroscopy. We show that orbital correlations become more important proceeding from {alpha} {yields} {beta} {yields} {gamma} plutonium, thus suggesting increasing f-electron correlation (localization). For the {delta}-Pu-Ga alloys we find a softening with larger Ga content, i.e., atomic volume, bulk modulus, and elastic constants, suggest a weakened chemical bonding with addition of Ga. Our measurements confirm qualitatively the theory but uncertainties remain when comparing the model with experiments.
Date: January 5, 2010
Creator: Soderlind, P; Landa, A; Klepeis, J E; Suzuki, Y & Migliori, A
Object Type: Article
System: The UNT Digital Library
Coordination of Energy Efficiency and Demand Response (open access)

Coordination of Energy Efficiency and Demand Response

This paper reviews the relationship between energy efficiency and demand response and discusses approaches and barriers to coordinating energy efficiency and demand response. The paper is intended to support the 10 implementation goals of the National Action Plan for Energy Efficiency's Vision to achieve all cost-effective energy efficiency by 2025. Improving energy efficiency in our homes, businesses, schools, governments, and industries - which consume more than 70 percent of the nation's natural gas and electricity - is one of the most constructive, cost-effective ways to address the challenges of high energy prices, energy security and independence, air pollution, and global climate change. While energy efficiency is an increasingly prominent component of efforts to supply affordable, reliable, secure, and clean electric power, demand response is becoming a valuable tool in utility and regional resource plans. The Federal Energy Regulatory Commission (FERC) estimated the contribution from existing U.S. demand response resources at about 41,000 megawatts (MW), about 5.8 percent of 2008 summer peak demand (FERC, 2008). Moreover, FERC recently estimated nationwide achievable demand response potential at 138,000 MW (14 percent of peak demand) by 2019 (FERC, 2009).2 A recent Electric Power Research Institute study estimates that 'the combination of demand response and …
Date: January 29, 2010
Creator: Goldman, Charles; Reid, Michael; Levy, Roger & Silverstein, Alison
Object Type: Report
System: The UNT Digital Library
CMS centres worldwide: A new collaborative infrastructure (open access)

CMS centres worldwide: A new collaborative infrastructure

The CMS Experiment at the LHC is establishing a global network of inter-connected 'CMS Centres' for controls, operations and monitoring. These support: (1) CMS data quality monitoring, detector calibrations, and analysis; and (2) computing operations for the processing, storage and distribution of CMS data. We describe the infrastructure, computing, software, and communications systems required to create an effective and affordable CMS Centre. We present our highly successful operations experiences with the major CMS Centres at CERN, Fermilab, and DESY during the LHC first beam data-taking and cosmic ray commissioning work. The status of the various centres already operating or under construction in Asia, Europe, Russia, South America, and the USA is also described. We emphasise the collaborative communications aspects. For example, virtual co-location of experts in CMS Centres Worldwide is achieved using high-quality permanently-running 'telepresence' video links. Generic Web-based tools have been developed and deployed for monitoring, control, display management and outreach.
Date: January 1, 2010
Creator: Taylor, Lucas & Gottschalk, Erik
Object Type: Article
System: The UNT Digital Library
Scalability and interoperability within glideinWMS (open access)

Scalability and interoperability within glideinWMS

Physicists have access to thousands of CPUs in grid federations such as OSG and EGEE. With the start-up of the LHC, it is essential for individuals or groups of users to wrap together available resources from multiple sites across multiple grids under a higher user-controlled layer in order to provide a homogeneous pool of available resources. One such system is glideinWMS, which is based on the Condor batch system. A general discussion of glideinWMS can be found elsewhere. Here, we focus on recent advances in extending its reach: scalability and integration of heterogeneous compute elements. We demonstrate that the new developments exceed the design goal of over 10,000 simultaneous running jobs under a single Condor schedd, using strong security protocols across global networks, and sustaining a steady-state job completion rate of a few Hz. We also show interoperability across heterogeneous computing elements achieved using client-side methods. We discuss this technique and the challenges in direct access to NorduGrid and CREAM compute elements, in addition to Globus based systems.
Date: January 1, 2010
Creator: Bradley, D.; Sfiligoi, I.; Padhi, S.; Frey, J. & Tannenbaum, T.
Object Type: Article
System: The UNT Digital Library
Dihadron Azimuthal Correlation from Collins Effect in Unpolarized Hadron Collisions (open access)

Dihadron Azimuthal Correlation from Collins Effect in Unpolarized Hadron Collisions

We study the dihadron azimuthal correlation produced nearly back-to-back in unpolarized hadron collisions, arising from the product of two Collins fragmentation functions. Using the latest Collins fragmentation functions extracted from the global analysis of available experimental data, we make predictions for the azimuthalcorrelation of two-pion production in pp collisions at RHIC energies. We find that the correlation is sizable in the mid-rapidity region for moderate jet transverse momentum.
Date: January 5, 2010
Creator: Yuan, Feng
Object Type: Article
System: The UNT Digital Library
EFFECT OF PRETREATMENT ON PT-CO/C CATHODE CATALYSTS FOR THE OXYGEN-REDUCTION REACTION (open access)

EFFECT OF PRETREATMENT ON PT-CO/C CATHODE CATALYSTS FOR THE OXYGEN-REDUCTION REACTION

Carbon supported Pt and Pt-Co electrocatalysts for the oxygen reduction reaction in low temperature fuel cells were prepared by the reduction of the metal salts with sodium borohydride and sodium formate. The effect of surface treatment with nitric acid on the carbon surface and Co on the surface of carbon prior to the deposition of Pt was studied. The catalysts where Pt was deposited on treated carbon the ORR reaction preceded more through the two electron pathway and favored peroxide production, while the fresh carbon catalysts proceeded more through the four electron pathway to complete the oxygen reduction reaction. NaCOOH reduced Pt/C catalysts showed higher activity that NaBH{sub 4} reduced Pt/C catalysts. It was determined that the Co addition has a higher impact on catalyst activity and active surface area when used with NaBH{sub 4} as reducing agent as compared to NaCOOH.
Date: January 19, 2010
Creator: Fox, E. & Colon-Mercado, H.
Object Type: Article
System: The UNT Digital Library
A collaborative network middleware project by Lambda Station, TeraPaths, and Phoebus (open access)

A collaborative network middleware project by Lambda Station, TeraPaths, and Phoebus

The TeraPaths, Lambda Station, and Phoebus projects, funded by the US Department of Energy, have successfully developed network middleware services that establish on-demand and manage true end-to-end, Quality-of-Service (QoS) aware, virtual network paths across multiple administrative network domains, select network paths and gracefully reroute traffic over these dynamic paths, and streamline traffic between packet and circuit networks using transparent gateways. These services improve network QoS and performance for applications, playing a critical role in the effective use of emerging dynamic circuit network services. They provide interfaces to applications, such as dCache SRM, translate network service requests into network device configurations, and coordinate with each other to setup up end-to-end network paths. The End Site Control Plane Subsystem (ESCPS) builds upon the success of the three projects by combining their individual capabilities into the next generation of network middleware. ESCPS addresses challenges such as cross-domain control plane signalling and interoperability, authentication and authorization in a Grid environment, topology discovery, and dynamic status tracking. The new network middleware will take full advantage of the perfSONAR monitoring infrastructure and the Inter-Domain Control plane efforts and will be deployed and fully vetted in the Large Hadron Collider data movement environment.
Date: January 1, 2010
Creator: Bobyshev, A.; /Fermilab; Bradley, S.; /Brookhaven; Crawford, M.; /Fermilab et al.
Object Type: Article
System: The UNT Digital Library
Detailed Chemical Kinetic Reaction Mechanism for Biodiesel Components Methyl Stearate and Methyl Oleate (open access)

Detailed Chemical Kinetic Reaction Mechanism for Biodiesel Components Methyl Stearate and Methyl Oleate

New chemical kinetic reaction mechanisms are developed for two of the five major components of biodiesel fuel, methyl stearate and methyl oleate. The mechanisms are produced using existing reaction classes and rules for reaction rates, with additional reaction classes to describe other reactions unique to methyl ester species. Mechanism capabilities were examined by computing fuel/air autoignition delay times and comparing the results with more conventional hydrocarbon fuels for which experimental results are available. Additional comparisons were carried out with measured results taken from jet-stirred reactor experiments for rapeseed methyl ester fuels. In both sets of computational tests, methyl oleate was found to be slightly less reactive than methyl stearate, and an explanation of this observation is made showing that the double bond in methyl oleate inhibits certain low temperature chain branching reaction pathways important in methyl stearate. The resulting detailed chemical kinetic reaction mechanism includes more approximately 3500 chemical species and more than 17,000 chemical reactions.
Date: January 22, 2010
Creator: Naik, C; Westbrook, C K; Herbinet, O; Pitz, W J & Mehl, M
Object Type: Article
System: The UNT Digital Library
Fireworks: A Physics Event Display for CMS (open access)

Fireworks: A Physics Event Display for CMS

Fireworks is a CMS event display which is specialized for the physics studies case. This specialization allows us to use a stylized rather than 3D-accurate representation when appropriate. Data handling is greatly simplified by using only reconstructed information and ideal geometry. Fireworks provides an easy-to-use interface which allows a physicist to concentrate only on the data in which he is interested. Data is presented via graphical and textual views. Fireworks is built using the Eve subsystem of the CERN ROOT project and CMS's FWLite project. The FWLite project was part of CMS's recent code redesign which separates data classes into libraries separate from algorithms producing the data and uses ROOT directly for C++ object storage, thereby allowing the data classes to be used directly in ROOT.
Date: January 1, 2010
Creator: Kovalskyi, D.; Tadel, M.; Mrak-Tadel, A.; Bellenot, B.; Kuznetsov, V.; Jones, C. D. et al.
Object Type: Article
System: The UNT Digital Library
Flexible session management in a distributed environment (open access)

Flexible session management in a distributed environment

Many secure communication libraries used by distributed systems, such as SSL, TLS, and Kerberos, fail to make a clear distinction between the authentication, session, and communication layers. In this paper we introduce CEDAR, the secure communication library used by the Condor High Throughput Computing software, and present the advantages to a distributed computing system resulting from CEDAR's separation of these layers. Regardless of the authentication method used, CEDAR establishes a secure session key, which has the flexibility to be used for multiple capabilities. We demonstrate how a layered approach to security sessions can avoid round-trips and latency inherent in network authentication. The creation of a distinct session management layer allows for optimizations to improve scalability by way of delegating sessions to other components in the system. This session delegation creates a chain of trust that reduces the overhead of establishing secure connections and enables centralized enforcement of system-wide security policies. Additionally, secure channels based upon UDP datagrams are often overlooked by existing libraries; we show how CEDAR's structure accommodates this as well. As an example of the utility of this work, we show how the use of delegated security sessions and other techniques inherent in CEDAR's architecture enables US CMS …
Date: January 1, 2010
Creator: Miller, Zach; Bradley, Dan; Tannenbaum, Todd & Sfiligoi, Igor
Object Type: Article
System: The UNT Digital Library
Single cell analysis: the new frontier in 'Omics' (open access)

Single cell analysis: the new frontier in 'Omics'

Cellular heterogeneity arising from stochastic expression of genes, proteins, and metabolites is a fundamental principle of cell biology, but single cell analysis has been beyond the capabilities of 'Omics' technologies. This is rapidly changing with the recent examples of single cell genomics, transcriptomics, proteomics, and metabolomics. The rate of change is expected to accelerate owing to emerging technologies that range from micro/nanofluidics to microfabricated interfaces for mass spectrometry to third- and fourth-generation automated DNA sequencers. As described in this review, single cell analysis is the new frontier in Omics, and single cell Omics has the potential to transform systems biology through new discoveries derived from cellular heterogeneity.
Date: January 14, 2010
Creator: Wang, Daojing & Bodovitz, Steven
Object Type: Report
System: The UNT Digital Library