1,544 Matching Results

Results open in a new window/tab.

The solubility of liquid and solid compounds in dry octan-1-o1 (open access)

The solubility of liquid and solid compounds in dry octan-1-o1

Article on the solubility of liquid and solid compounds in dry octan-1-o1.
Date: November 28, 2013
Creator: Abraham, M. H. (Michael H.) & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
New Design Methods And Algorithms For High Energy-Efficient And Low-cost Distillation Processes (open access)

New Design Methods And Algorithms For High Energy-Efficient And Low-cost Distillation Processes

This project sought and successfully answered two big challenges facing the creation of low-energy, cost-effective, zeotropic multi-component distillation processes: first, identification of an efficient search space that includes all the useful distillation configurations and no undesired configurations; second, development of an algorithm to search the space efficiently and generate an array of low-energy options for industrial multi-component mixtures. Such mixtures are found in large-scale chemical and petroleum plants. Commercialization of our results was addressed by building a user interface allowing practical application of our methods for industrial problems by anyone with basic knowledge of distillation for a given problem. We also provided our algorithm to a major U.S. Chemical Company for use by the practitioners. The successful execution of this program has provided methods and algorithms at the disposal of process engineers to readily generate low-energy solutions for a large class of multicomponent distillation problems in a typical chemical and petrochemical plant. In a petrochemical complex, the distillation trains within crude oil processing, hydrotreating units containing alkylation, isomerization, reformer, LPG (liquefied petroleum gas) and NGL (natural gas liquids) processing units can benefit from our results. Effluents from naphtha crackers and ethane-propane crackers typically contain mixtures of methane, ethylene, ethane, propylene, …
Date: November 21, 2013
Creator: Agrawal, Rakesh
Object Type: Report
System: The UNT Digital Library
Stationary Fuel Cell System Composite Data Products: Data through Quarter 2 of 2013 (open access)

Stationary Fuel Cell System Composite Data Products: Data through Quarter 2 of 2013

This report includes 24 composite data products (CDPs) produced for stationary fuel cell systems, with data through the second quarter of 2013.
Date: November 1, 2013
Creator: Ainscough, C.; Kurtz, J.; Peters, M. & Saur, G.
Object Type: Report
System: The UNT Digital Library
Measured Radiation and Background Levels During Transmission of Megawatt Electron Beams Through Millimeter Apertures (open access)

Measured Radiation and Background Levels During Transmission of Megawatt Electron Beams Through Millimeter Apertures

We report measurements of photon and neutron radiation levels observed while transmitting a 0.43 MW electron beam through millimeter-sized apertures and during beam-off, but accelerating gradient RF-on, operation. These measurements were conducted at the Free-Electron Laser (FEL) facility of the Jefferson National Accelerator Laboratory (JLab) using a 100 MeV electron beam from an energy-recovery linear accelerator. The beam was directed successively through 6 mm, 4 mm, and 2 mm diameter apertures of length 127 mm in aluminum at a maximum current of 4.3 mA (430 kW beam power). This study was conducted to characterize radiation levels for experiments that need to operate in this environment, such as the proposed DarkLight Experiment. We find that sustained transmission of a 430 kW continuous-wave (CW) beam through a 2 mm aperture is feasible with manageable beam-related backgrounds. We also find that during beam-off, RF-on operation, multipactoring inside the niobium cavities of the accelerator cryomodules is the primary source of ambient radiation when the machine is tuned for 130 MeV operation.
Date: November 1, 2013
Creator: Alarcon, Ricardo; Balascuta, S.; Benson, Stephen V.; Bertozzi, William; Boyce, James R.; Cowan, Ray et al.
Object Type: Article
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 40, Ed. 1 Sunday, November 3, 2013 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 40, Ed. 1 Sunday, November 3, 2013

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: November 3, 2013
Creator: Aldaz, Gina
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 41, Ed. 1 Sunday, November 10, 2013 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 41, Ed. 1 Sunday, November 10, 2013

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: November 10, 2013
Creator: Aldaz, Gina
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 42, Ed. 1 Sunday, November 17, 2013 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 42, Ed. 1 Sunday, November 17, 2013

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: November 17, 2013
Creator: Aldaz, Gina
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 43, Ed. 1 Sunday, November 24, 2013 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 32, No. 43, Ed. 1 Sunday, November 24, 2013

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: November 24, 2013
Creator: Aldaz, Gina
Object Type: Newspaper
System: The Portal to Texas History

Balancing Scholarly Activities, Primary Assignments and Service to the Community

Presentation for the University of North Texas (UNT) Libraries as part of the career development program. This presentation discusses getting started on a research project and balancing scholarly activities, primary assignments, and service to the community.
Date: November 19, 2013
Creator: Alemneh, Daniel Gelaw; Avery, Elizabeth Fuseler & Wahl, Diane
Object Type: Presentation
System: The UNT Digital Library
Assessment of Industrial Load for Demand Response across Western Interconnect (open access)

Assessment of Industrial Load for Demand Response across Western Interconnect

Demand response (DR) has the ability to both increase power grid reliability and potentially reduce operating system costs. Understanding the role of demand response in grid modeling has been difficult due to complex nature of the load characteristics compared to the modeled generation and the variation in load types. This is particularly true of industrial loads, where hundreds of different industries exist with varying availability for demand response. We present a framework considering industrial loads for the development of availability profiles that can provide more regional understanding and can be inserted into analysis software for further study. The developed framework utilizes a number of different informational resources, algorithms, and real-world measurements to perform a bottom-up approach in the development of a new database with representation of the potential demand response resource in the industrial sector across the U.S. This tool houses statistical values of energy and demand response (DR) potential by industrial plant and geospatially locates the information for aggregation for different territories without proprietary information. This report will discuss this framework and the analyzed quantities of demand response for Western Interconnect (WI) in support of evaluation of the cost production modeling with power grid modeling efforts of demand response.
Date: November 1, 2013
Creator: Alkadi, Nasr E; Starke, Michael R & Ma, Ookie
Object Type: Report
System: The UNT Digital Library
Nuestra Voz De Tarrant County (Fort Worth, Tex.), Vol. 1, No. 4, Ed. 1, November/December 2013 (open access)

Nuestra Voz De Tarrant County (Fort Worth, Tex.), Vol. 1, No. 4, Ed. 1, November/December 2013

Bi-monthly newspaper providing news and information to the Tarrant County Latino community along with advertising.
Date: November 2013
Creator: Alvarado, Felix
Object Type: Newspaper
System: The Portal to Texas History
Southwest Retort, Volume 66, Number 3, November 2013 (open access)

Southwest Retort, Volume 66, Number 3, November 2013

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: November 2013
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Solar Resource Measurements in El Paso, Texas (Equipment CRADA Only): Cooperative Research and Development Final Report, CRADA Number CRD-08-273 (open access)

Solar Resource Measurements in El Paso, Texas (Equipment CRADA Only): Cooperative Research and Development Final Report, CRADA Number CRD-08-273

Site-specific, long-term, continuous, and high-resolution measurements of solar irradiance are important for developing renewable resource data. These data are used for several research and development activities consistent with the NREL mission: establish a national 30-year climatological database of measured solar irradiances; provide high quality ground-truth data for satellite remote sensing validation; support development of radiative transfer models for estimating solar irradiance from available meteorological observations; provide solar resource information needed for technology deployment and operations.
Date: November 1, 2013
Creator: Andreas, A.
Object Type: Report
System: The UNT Digital Library
Square roots of real 2 x 2 matrices (open access)

Square roots of real 2 x 2 matrices

In this article, the author investigates the real 2 x 2 matrices which admit real square roots.
Date: November 2013
Creator: Anghel, Nicolae
Object Type: Article
System: The UNT Digital Library
Predicted Versus Actual Savings for a Low-Rise Multifamily Retrofit in Boulder, Colorado (open access)

Predicted Versus Actual Savings for a Low-Rise Multifamily Retrofit in Boulder, Colorado

To determine the most cost-effective methods of improving buildings, accurate analysis and prediction of the energy use of existing buildings is essential. However, multiple studies confirm that analysis methods tend to over-predict energy use in poorly insulated, leaky homes and thus, the savings associated with improving those homes. In NREL's report titled 'Assessing and Improving the Accuracy of Energy Analysis of Residential Buildings,' researchers propose a method for improving the accuracy of residential energy analysis methods. A key step in this process involves the comparisons of predicted versus metered energy use and savings. In support of this research need, CARB evaluated the retrofit of a multifamily building in Boulder, CO. The updated property is a 37 unit, 2 story apartment complex built in 1950, which underwent renovations in early 2009 to bring it into compliance with Boulder, CO's SmartRegs ordinance. Goals of the study were to: 1) evaluate predicted versus actual savings due to the improvements, 2) identify areas where the modeling assumptions may need to be changed, and 3) determine common changes made by renters that would negatively impact energy savings. In this study, CARB seeks to improve the accuracy of modeling software while assessing retrofit measures to specifically …
Date: November 1, 2013
Creator: Arena, L. & Williamson, J.
Object Type: Report
System: The UNT Digital Library
Algeria: Current Issues (open access)

Algeria: Current Issues

The focus of this report is Algeria, a country in North Africa that is increasingly important for U.S. efforts to counter international terrorism as a key partner in the fight against Al Qaeda linked groups. As an energy producer, it also is a significant source of natural gas for the United States and not a major recipient of U.S. aid. This report discusses Algeria's current political conditions and Algeria-related U.S. policy.
Date: November 18, 2013
Creator: Arieff, Alexis
Object Type: Report
System: The UNT Digital Library
Research Data Management Principles, Practices, and Prospects (open access)

Research Data Management Principles, Practices, and Prospects

This report examines how research institutions are responding to data management requirements of the National Science Foundation, National Institutes of Health, and other federal agencies. It also considers what role, if any, academic libraries and the library and information science profession should have in supporting researchers’ data management needs. University of North Texas (UNT) Library Director Martin Halbert opens the report with an overview of the DataRes Project, a two-year investigation of data management practices conducted at UNT with colleagues Spencer D. C. Keralis, Shannon Stark, and William E. Moen. His introduction is followed by a series of papers that were presented at the DataRes Symposium that UNT organized in December 2012.
Date: November 2013
Creator: Asher, Andrew; Deards, Kiyomi; Esteva, Maria; Halbert, Martin; Jahnke, Lori; Jordan, Chris et al.
Object Type: Book
System: The UNT Digital Library
2013 Australia-U.S. Ministerial Consultations Joint Communique (open access)

2013 Australia-U.S. Ministerial Consultations Joint Communique

Joint AUSMIN communique between the United States and Australia that celebrates the long-term partnership and outlines current matters of security and defense, economics, advancement of human rights, and the promotion of peace both regionally and globally.
Date: November 20, 2013
Creator: Australia-U.S. Ministerial Consultations
Object Type: Report
System: The UNT Digital Library
Searches with Mono-Leptons (open access)

Searches with Mono-Leptons

None
Date: November 4, 2013
Creator: Bai, Yang & Tait, Tim M. P.
Object Type: Article
System: The UNT Digital Library
Dichromatic Dark Matter (open access)

Dichromatic Dark Matter

None
Date: November 6, 2013
Creator: Bai, Yang; Su, Meng & Zhao, Yue
Object Type: Article
System: The UNT Digital Library
Results For The Third Quarter 2013 Tank 50 WAC Slurry Sample (open access)

Results For The Third Quarter 2013 Tank 50 WAC Slurry Sample

This report details the chemical and radionuclide contaminant results for the characterization of the 2013 Third Quarter sampling of Tank 50 for the Saltstone Waste Acceptance Criteria (WAC) in effect at that time. Information from this characterization will be used by DWPF & Saltstone Facility Engineering (DSFE) to support the transfer of low-level aqueous waste from Tank 50 to the Salt Feed Tank in the Saltstone Facility in Z-Area, where the waste will be immobilized. This information is also used to update the Tank 50 Waste Characterization System.
Date: November 26, 2013
Creator: Bannochie, Christopher J.
Object Type: Report
System: The UNT Digital Library
Safety of Hydrogen Systems Installed in Outdoor Enclosures (open access)

Safety of Hydrogen Systems Installed in Outdoor Enclosures

The Hydrogen Safety Panel brings a broad cross-section of expertise from the industrial, government, and academic sectors to help advise the U.S. Department of Energy’s (DOE) Fuel Cell Technologies Office through its work in hydrogen safety, codes, and standards. The Panel’s initiatives in reviewing safety plans, conducting safety evaluations, identifying safety-related technical data gaps, and supporting safety knowledge tools and databases cover the gamut from research and development to demonstration and deployment. The Panel’s recent work has focused on the safe deployment of hydrogen and fuel cell systems in support of DOE efforts to accelerate fuel cell commercialization in early market applications: vehicle refueling, material handling equipment, backup power for warehouses and telecommunication sites, and portable power devices. This paper resulted from observations and considerations stemming from the Panel’s work on early market applications. This paper focuses on hydrogen system components that are installed in outdoor enclosures. These enclosures might alternatively be called “cabinets,” but for simplicity, they are all referred to as “enclosures” in this paper. These enclosures can provide a space where a flammable mixture of hydrogen and air might accumulate, creating the potential for a fire or explosion should an ignition occur. If the enclosure is large …
Date: November 6, 2013
Creator: Barilo, Nick F.
Object Type: Report
System: The UNT Digital Library
241-AW Tank Farm Construction Extent of Condition Review for Tank Integrity (open access)

241-AW Tank Farm Construction Extent of Condition Review for Tank Integrity

This report provides the results of an extent of condition construction history review for the 241-AW tank farm. The construction history of the 241-AW tank farm has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In the 241-AW tank farm, the fourth double-shell tank farm constructed, similar issues as those with tank 241-AY-102 construction occured. The overall extent of similary and affect on 241-AW tank farm integrity is described herein.
Date: November 19, 2013
Creator: Barnes, Travis J.; Gunter, Jason R. & Reeploeg, Gretchen E.
Object Type: Report
System: The UNT Digital Library
Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste - 14206 (DRAFT) (open access)

Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste - 14206 (DRAFT)

A history of the evolution and the design development of Extended Reach Sluicer System (ERSS) is presented. Several challenges are described that had to be overcome to create a machine that went beyond the capabilities of prior generation sluicers to mobilize waste in Single Shell Tanks for pumping into Double Shell Tank receiver tanks. Off-the-shelf technology and traditional hydraulic fluid power systems were combined with the custom-engineered components to create the additional functionality of the ERSS, while still enabling it to fit within very tight entry envelope into the SST. Problems and challenges inevitably were encountered and overcome in ways that enhance the state of the art of fluid power applications in such constrained environments. Future enhancements to the ERSS design are explored for retrieval of tanks with different dimensions and internal obstacles.
Date: November 11, 2013
Creator: Bauer, Roger E.; Figley, Reed R. & Innes, A. G.
Object Type: Article
System: The UNT Digital Library