The Use of Union Dues for Political Purposes: A Discussion of Agency Fee Objectors and Public Policy (open access)

The Use of Union Dues for Political Purposes: A Discussion of Agency Fee Objectors and Public Policy

None
Date: June 19, 1998
Creator: McCallion, Gail
Object Type: Report
System: The UNT Digital Library
Using Simultaneous SHG and XRD Capabilities to Examine Phase Transitions of HMX and TATB (open access)

Using Simultaneous SHG and XRD Capabilities to Examine Phase Transitions of HMX and TATB

Simultaneous SHG (second harmonic generation) and XRD (x-ray diffraction) capabilities have been developed at SSRL (Stanford Synchrotron Radiation laboratory) to examine the phase behavior of energetic materials, for example, HMX (octahydro- 1,3,5,7-tetranitro- 1,3,5,7-tetrmcine) and TATB (1,3,5-triamino-2,4,6 trinitrobenzene). This unique capability provides information on the evolution at the molecular level (centro and non-centrosymmetric) on material stability, phase transformation or decomposition reactions, which are important to continue refinement of computational predictions of material properties. This paper reports x-ray diffraction experiments on both HMX and TATB with increasing temperature and on simultaneous SHG and XRD experiments at fixed temperature. Our results indicate that, for HMX, the {beta} to {delta} transformation occurs over a range of temperature which do not correlate to the previously reported fast rise in SHG signal close to 17OOC as a phase transformation. No phase transition is observed for TATB, even though, previous paper shows an increase in the SHG signal.
Date: June 19, 2001
Creator: Saw, C. K.; Zaug, J.; Farber, D. & Ruddle, C.
Object Type: Article
System: The UNT Digital Library
VACET: Proposed SciDAC2 Visualization and Analytics Center forEnabling Technologies (open access)

VACET: Proposed SciDAC2 Visualization and Analytics Center forEnabling Technologies

This paper accompanies a poster that is being presented atthe SciDAC 2006 meeting in Denver, CO. This project focuses on leveragingscientific visualization and analytics software technology as an enablingtechnology for increasing scientific productivity and insight. Advancesincomputational technology have resultedin an "information big bang,"which in turn has createda significant data understanding challenge. Thischallenge is widely acknowledged to be one of the primary bottlenecks incontemporary science. The vision for our Center is to respond directly tothat challenge by adapting, extending, creating when necessary anddeploying visualization and data understanding technologies for ourscience stakeholders. Using an organizational model as a Visualizationand Analytics Center for Enabling Technologies (VACET), we are wellpositioned to be responsive to the needs of a diverse set of scientificstakeholders in a coordinated fashion using a range of visualization,mathematics, statistics, computer and computational science and datamanagement technologies.
Date: June 19, 2006
Creator: Bethel, W.; Johnson, Chris; Hansen, Charles; Parker, Steve; Sanderson, Allen; Silva, Claudio et al.
Object Type: Article
System: The UNT Digital Library
Valve-Gear for Engines. (open access)

Valve-Gear for Engines.

Patent for a valve gear for steam engines that can reverse or stop the rotation of the engine shaft, with illustrations.
Date: June 19, 1906
Creator: Hanser, Joseph
Object Type: Patent
System: The Portal to Texas History
Variation with Electron Temperature of the Intensity Ratio of a Pair of Helium Spectral Lines (open access)

Variation with Electron Temperature of the Intensity Ratio of a Pair of Helium Spectral Lines

Abstract: "The dependence on mean electron kinetic energy of the ratio of intensities of [lambda]5015[HeI] and [lambda]4686[HeII] has been calculated. A low-density plasma is considered, the principal assumptions being that the reaction processes are governed by electron collisions and the electron energy distribution is Maxwellian. The results show a fairly large variation of the intensity ratio within the range of 3 to 7 ev."
Date: June 19, 1958
Creator: Howard, John C.
Object Type: Report
System: The UNT Digital Library
VIBRATION EFFECTS ON THE TAYLOR 206R PRESSURE TRANSMITTER. PART II (open access)

VIBRATION EFFECTS ON THE TAYLOR 206R PRESSURE TRANSMITTER. PART II

None
Date: June 19, 1956
Creator: Job, G.H. & Owen, J.A.
Object Type: Report
System: The UNT Digital Library
Violence and the mass media (open access)

Violence and the mass media

This report is about violence and the mass media
Date: June 19, 1968
Creator: Vialet, Joyce
Object Type: Report
System: The UNT Digital Library
Wakefield Computations for the CLIC PETS using the Parallel Finite Element Time-Domain Code T3P (open access)

Wakefield Computations for the CLIC PETS using the Parallel Finite Element Time-Domain Code T3P

In recent years, SLAC's Advanced Computations Department (ACD) has developed the high-performance parallel 3D electromagnetic time-domain code, T3P, for simulations of wakefields and transients in complex accelerator structures. T3P is based on advanced higher-order Finite Element methods on unstructured grids with quadratic surface approximation. Optimized for large-scale parallel processing on leadership supercomputing facilities, T3P allows simulations of realistic 3D structures with unprecedented accuracy, aiding the design of the next generation of accelerator facilities. Applications to the Compact Linear Collider (CLIC) Power Extraction and Transfer Structure (PETS) are presented.
Date: June 19, 2009
Creator: Candel, A; Kabel, A.; Lee, L.; Li, Z.; Ng, C.; Schussman, G. et al.
Object Type: Article
System: The UNT Digital Library
Wakefield Simulation of CLIC PETS Structure Using Parallel 3D Finite Element Time-Domain Solver T3P (open access)

Wakefield Simulation of CLIC PETS Structure Using Parallel 3D Finite Element Time-Domain Solver T3P

In recent years, SLAC's Advanced Computations Department (ACD) has developed the parallel 3D Finite Element electromagnetic time-domain code T3P. Higher-order Finite Element methods on conformal unstructured meshes and massively parallel processing allow unprecedented simulation accuracy for wakefield computations and simulations of transient effects in realistic accelerator structures. Applications include simulation of wakefield damping in the Compact Linear Collider (CLIC) power extraction and transfer structure (PETS).
Date: June 19, 2009
Creator: Candel, A.; Kabel, A.; Lee, L.; Li, Z.; Ng, C.; Schussman, G. et al.
Object Type: Article
System: The UNT Digital Library
Water Quality: EPA Should Improve Guidance and Support to Help States Develop Standards That Better Target Cleanup Efforts (open access)

Water Quality: EPA Should Improve Guidance and Support to Help States Develop Standards That Better Target Cleanup Efforts

Testimony issued by the General Accounting Office with an abstract that begins "Water quality standards comprise designated uses and water quality criteria. These standards are critical in making accurate, scientifically based determinations about which of the nation's waters are most in need of cleanup. GAO examined the extent to which (1) states are changing designated uses when necessary, (2) EPA is assisting states toward that end, (3) EPA is updating the "criteria documents" states use to develop the pollutant limits needed to measure whether designated uses are being attained, and (4) EPA is assisting states in establishing criteria that can be compared with reasonably obtainable monitoring data."
Date: June 19, 2003
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
THE WEB SYSTEM. PART II. A FORMAL DESCRIPTION OF THE WEB INPUT LANGUAGE. Report No. 232. (open access)

THE WEB SYSTEM. PART II. A FORMAL DESCRIPTION OF THE WEB INPUT LANGUAGE. Report No. 232.

None
Date: June 19, 1967
Creator: Bond, W D; Davidson, E S & McCormick, B H
Object Type: Report
System: The UNT Digital Library
What Is the “Farm Bill”? (open access)

What Is the “Farm Bill”?

None
Date: June 19, 2008
Creator: Johnson, Renée
Object Type: Report
System: The UNT Digital Library
Wheeled Vehicle. (open access)

Wheeled Vehicle.

Patent for a new and improved wheeled vehicle. This design consists in "[a] one-wheeled sulky in which are combined the single wheel, the frame, the thills, the seat, the standards, and the rods or braces" (lines 54-57).
Date: June 19, 1883
Creator: Boyd, William
Object Type: Patent
System: The Portal to Texas History
Wildfire Spending: Background, Issues, and Legislation in the 114th Congress (open access)

Wildfire Spending: Background, Issues, and Legislation in the 114th Congress

None
Date: June 19, 2015
Creator: Hoover, Katie; Lindsay, Bruce R.; McCarthy, Francis X. & Tollestrup, Jessica
Object Type: Report
System: The UNT Digital Library
Wildland Fire Management: A Cohesive Strategy and Clear Cost-Containment Goals Are Needed for Federal Agencies to Manage Wildland Fire Activities Effectively (open access)

Wildland Fire Management: A Cohesive Strategy and Clear Cost-Containment Goals Are Needed for Federal Agencies to Manage Wildland Fire Activities Effectively

Testimony issued by the Government Accountability Office with an abstract that begins "Increasing wildland fire threats to communities and ecosystems, combined with rising costs of addressing those threats--trends that GAO and others have reported on for many years--have not abated. On average, the acreage burned annually by wildland fires from 2000 to 2005 was 70 percent greater than the acreage burned annually during the 1990s. Annual appropriations to prepare for and respond to wildland fires have also increased substantially over the past decade, totaling about $3 billion in recent years. The Forest Service within the Department of Agriculture and four agencies within the Department of the Interior (Interior) are responsible for responding to wildland fires on federal lands. This testimony summarizes several key actions that federal agencies need to complete or take to strengthen their management of the wildland fire program, including the need to (1) develop a long-term, cohesive strategy to reduce fuels and address wildland fire problems and (2) improve the management of their efforts to contain the costs of preparing for and responding to wildland fires. The testimony is based on several previous GAO reports and testimonies addressing wildland fire issues."
Date: June 19, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
WMD first response: requirements, emerging technologies, and policy implications (open access)

WMD first response: requirements, emerging technologies, and policy implications

In the US today, efforts are underway to defend against the possible terrorist use of weapons of mass destruction (WMD) against US cities. These efforts include the development and adaptation of technologies to support prevention and detection, to defend against a possible attack, and, if these fail, to provide both mitigation responses and attribution for a WMD incident. Technologies under development span a range of systems, from early detection and identification of an agent or explosive, to diagnostic and systems analysis tools; and to forensic analysis for law enforcement. Also, many techniques and tools that have been developed for other applications are being examined to determine whether, with some modification, they could be of use by the emergency preparedness, public health, and law enforcement communities. However, anecdotal evidence suggests the existence of a serious disconnect between the technology development communities and these user communities. This disconnect arises because funding for technology development is derived primarily from sources (principally federal agencies) distant from the emergency response communities, which are predominantly state, county, or local entities. Moreover, the first responders with whom we have worked candidly admit that their jurisdictions have been given, or have purchased for them, a variety of technological …
Date: June 19, 2000
Creator: Vergino, E. S. & Hoehn, W. E., Jr.
Object Type: Article
System: The UNT Digital Library
Workload-Adaptive Management of Energy-Smart Disk Storage Systems (open access)

Workload-Adaptive Management of Energy-Smart Disk Storage Systems

Recent studies have identified disk storage systems as one of the major consumers of power in data centers. Many disk power management (DPM) schemes were suggested where the power consumed by disks is reduced by spinning them down during long idle periods. Spinning the disks down and up results in additional energy and response time costs. For that reason, DPM schemes are effective only if the disks experience relatively long idle periods and the scheme does not introduce a severe response time penalty. In this paper we introduce a dynamic block exchange algorithm which switches data between disks based on the observed workload such that frequently accessed blocks end up residing on a few"hot" disks thus allowing the majority of disks to experience longer idle periods. We validate the effectiveness of the algorithm with trace-driven simulations showing power savings of up to 60percent with very small response time penalties.
Date: June 19, 2009
Creator: Otoo, Ekow; Rotem, Doron & Tsao, Shih-Chiang
Object Type: Article
System: The UNT Digital Library
Zirconium hydride fuel element performance characteristics (open access)

Zirconium hydride fuel element performance characteristics

None
Date: June 19, 1973
Creator: Lillie, A. F.; McClelland, D. T.; Roberts, W. J. & Walter, J. H.
Object Type: Report
System: The UNT Digital Library