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

Description: 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 … more
Date: November 21, 2013
Creator: Agrawal, Rakesh
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Precision Manufacturing of Inertial Confinement Fusion Double Shell Laser Targets for OMEGA

Description: Double shell targets have been built by Lawrence Livermore National Laboratory (LLNL) for inertial confinement fusion (ICF) experiments on the Omega laser at the University of Rochester and as a prelude to similar experiments on NIF. Of particular interest to ICF studies are high-precision double shell implosion targets for demonstrating thermonuclear ignition without the need for cryogenic preparation. Because the ignition tolerance to interface instabilities is rather low, the manufacturing r… more
Date: November 21, 2003
Creator: Amendt, P. A.; Bono, M. J.; Hibbard, R. L.; Castro, C. & Bennett, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Lord's Resistance Army: The U.S. Response

Description: This report discusses the Lord's Resistance Army (LRA) and United States policy, strategic and humanitarian response. LRA is an armed group that originated in northern Uganda 24 years ago but has operated since 2006 in the remote border areas between the Central African Republic (CAR), Democratic Republic of Congo (DRC), and South Sudan. Led by Joseph Kony, its numbers are tiny, but its actions, which include massacres, mass abductions, sexual assault, and looting, have caused significant human… more
Date: November 21, 2011
Creator: Arieff, Alexis & Ploch, Lauren
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Electrochemical Photovoltaic Cells. Second Technical Progress Report, August 1, 1979-October 31, 1979

Description: The development of stable, efficient, photoelectrochemical cells based on silicon and gallium arsenide in non-aqueous electrolyte systems is being investigated. Redox reactions of ferrocene, anthracene and anthraquinone have been studied on platinum and n-silicon electrodes. The latter have been further characterized by differential capacitance measurements. Cells and equipment have been designed and set up for long-term stability studies.
Date: November 21, 1979
Creator: Austin, A. E.; Byker, H. J. & Brooman, E. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spinning characteristics of wings 1: rectangular Clark Y monoplane wing

Description: "A series of wind tunnel tests of a rectangular Clark Y wing was made with the NACA spinning balance as part of a general program of research on airplane spinning. All six components of the aerodynamic force and moment were measured throughout the range of angles of attack, angles of sideslip, and values omega b/2v likely to be attained by a spinning airplane; the results were reduced to coefficient form. It is concluded that a conventional monoplane with a rectangular Clark y wing can be made … more
Date: November 21, 1934
Creator: Bamber, M. J. & Zimmerman, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal performance of steel-framed walls. Final report

Description: In wall construction, highly conductive members spaced along the wall, which allow higher heat transfer than that through less conductive areas, are referred to as thermal bridges. Thermal bridges in walls tend to increase heat loss and, under certain adverse conditions, can cause dust streaking (``ghosting``) on interior walls over studs due to temperature differentials, as well as condensation in and on walls. Although such adverse conditions can be easily avoided by proper thermal design of … more
Date: November 21, 1994
Creator: Barbour, E.; Goodrow, J.; Kosny, J. & Christian, J.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Particle Physics Outreach to Secondary Education

Description: This review summarizes exemplary secondary education and outreach programs of the particle physics community. We examine programs from the following areas: research experiences, high-energy physics data for students, informal learning for students, instructional resources, and professional development. We report findings about these programs' impact on students and teachers and provide suggestions for practices that create effective programs from those findings. We also include some methods for… more
Date: November 21, 2011
Creator: Bardeen, Marjorie G.; Johansson, K. Erik & Young, M. Jean
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

Education, Training Opportunities for the Pipeline High School Through Postdoctorate

Description: Presentation on the National Science Foundation and its career and professional development resources for high school students through individuals starting their careers. It was presented at the UNT Transdisciplinary Conference on Ancestral Genomics Research which was held virtually on November 20-21, 2020.
Date: November 21, 2020
Duration: 27 minutes 42 seconds
Creator: Barrett, Kim
Item Type: Refine your search to only Video
Partner: University of North Texas
open access

Mirror fusion vacuum technology developments

Description: Magnetic Mirror Fusion experiments, such as MFTF-B+T (Mirror Fusion Test Facility-B, Tritium Upgrade) and foreseeable follow-on devices, have operational and maintenance requirements that have not yet been fully demonstrated. Among those associated with vacuum technology are the very-high continuous-pumping speeds, 10/sup 7/ to 10/sup 8/ l/s for D/sub 2/, T/sub 2/ and, to a lesser extent, He; the early detection of water leaks from the very-high heat-flux neutral-beam dumps and the detection an… more
Date: November 21, 1983
Creator: Batzer, T. H. & Call, W. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Synchrotron radiation issues in future hadron colliders

Description: Hadron machines mostly use high field superconducting magnets operating at low temperatures. Therefore the issue of extracting a SR power heat load becomes more critical and costly. Conceptual solutions to the problem exist in the form of beam screens and photon stops. Cooled beam screens are more expensive in production and operation than photon stops, but they are, unlike photon stops, routinely used in existing machines. Photon stops are the most economical solution because the heat load is … more
Date: November 21, 2002
Creator: Bauer, P.; Darve, C. & Terechkine, I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Scientists use GEANIE to Study Isotopes of Iridium and Europium to Improve Radiochemical Diagnostics in Nuclear Devices

Description: Radiochemical diagnostics play an important role in helping scientists understand the detonation of a nuclear device. Sometimes some elements or isotopes are inserted as radiochemical detectors at various locations in the nuclear device. During the detonation of the device, these detectors are subjected for a short time to the intense flux of neutrons emitted through fission and possibly through fusion of light elements (usually deuterium and tritium). After the detonation, the radiochemical de… more
Date: November 21, 2002
Creator: Becker, J. A. & Nelson, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Detailed summary of the working group on environmental control (T6)

Description: For the next generation of large accelerators, the civil engineering of accelerator tunnels and associated underground enclosures will be a major component of the technical challenge of building such machines. Because of the large scale involved, the engineering will be required to be as cost-effective as possible, and issues such as ground motion and artificial sources of vibration in the environment will need to be carefully considered. installation and alignment of the machine components wil… more
Date: November 21, 2002
Creator: Bialowons, Wilhelm; Laughton, Chris & Seryi, Andrei
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

What Accounts for Racial and Ethnic Disparities in Health

Description: Presentation focusing on racial and ethnic disparities in health and health care that includes historical and modern perspectives, socioecological factors, and challenges to overcoming these disparities. It was presented at the UNT Transdisciplinary Conference on Ancestral Genomics Research which was held virtually on November 20-21, 2020.
Date: November 21, 2020
Duration: 30 minutes 13 seconds
Creator: Bigby, JudyAnn
Item Type: Refine your search to only Video
Partner: University of North Texas
open access

Betatron motion with coupling of horizontal and vertical degrees of freedom

Description: The Courant-Snyder parameterization of one-dimensional linear betatron motion is generalized to two-dimensional coupled linear motion. To represent the 4 x 4 symplectic transfer matrix the following ten parameters were chosen: four beta-functions, four alpha-functions and two betatron phase advances which have a meaning similar to the Courant-Snyder parameterization. Such a parameterization works equally well for weak and strong coupling and can be useful for analysis of coupled betatron motion… more
Date: November 21, 2002
Creator: Bogacz, S. A. & Lebedev, V. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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