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Timpson & Tenaha News (Timpson, Tex.), Vol. 21, No. 13, Ed. 1 Thursday, March 30, 2006 (open access)

Timpson & Tenaha News (Timpson, Tex.), Vol. 21, No. 13, Ed. 1 Thursday, March 30, 2006

Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date: March 30, 2006
Creator: Alexander, Nancy
Object Type: Newspaper
System: The Portal to Texas History
The European Parliament (open access)

The European Parliament

This report mainly discusses The European Parliament which is a key institution of 25 member European Union. The role of the European Parliament in the legislative has expanded steadily over time as the scope of EU policy has grown.
Date: March 30, 2006
Creator: Archick, Kristin
Object Type: Report
System: The UNT Digital Library
Trace-level beryllium analysis in the laboratory and in the field: State of the art, challenges, and opportunities (open access)

Trace-level beryllium analysis in the laboratory and in the field: State of the art, challenges, and opportunities

Control of workplace exposure to beryllium is a growing issue in the United States and other nations. As the health risks associated with low-level exposure to beryllium are better understood, the need increases for improved analytical techniques both in the laboratory and in the field. These techniques also require a greater degree of standardization to permit reliable comparison of data obtained from different locations and at different times. Analysis of low-level beryllium samples, in the form of air filters or surface wipes, is frequently required for workplace monitoring or to provide data to support decision-making on implementation of exposure controls. In the United States and the United Kingdom, the current permissible exposure level is 2 {micro}g/m{sup 3} (air), and the United States Department of Energy has implemented an action level of 0.2 {micro}g/m{sup 3} (air) and 0.2 {micro}g/100 cm{sup 2} (surface). These low-level samples present a number of analytical challenges, including (1) a lack of suitable standard reference materials, (2) unknown robustness of sample preparation techniques, (3) interferences during analysis, (4) sensitivity (sufficiently low detection limits), (5) specificity (beryllium speciation), and (6) data comparability among laboratories. Additionally, there is a need for portable, real-time (or near real-time) equipment for beryllium …
Date: March 30, 2006
Creator: BRISSON, MICHAEL
Object Type: Article
System: The UNT Digital Library
Weathering of Roofing Materials-An Overview (open access)

Weathering of Roofing Materials-An Overview

An overview of several aspects of the weathering of roofing materials is presented. Degradation of materials initiated by ultraviolet radiation is discussed for plastics used in roofing, as well as wood and asphalt. Elevated temperatures accelerate many deleterious chemical reactions and hasten diffusion of material components. Effects of moisture include decay of wood, acceleration of corrosion of metals, staining of clay, and freeze-thaw damage. Soiling of roofing materials causes objectionable stains and reduces the solar reflectance of reflective materials. (Soiling of non-reflective materials can also increase solar reflectance.) Soiling can be attributed to biological growth (e.g., cyanobacteria, fungi, algae), deposits of organic and mineral particles, and to the accumulation of flyash, hydrocarbons and soot from combustion.
Date: March 30, 2006
Creator: Berdahl, Paul; Akbari, Hashem; Levinson, Ronnen & Miller, William A.
Object Type: Article
System: The UNT Digital Library
Modeling and Optimization of Deflection Slits for Fast-Pulsing of a Low Energy Ion Beam (open access)

Modeling and Optimization of Deflection Slits for Fast-Pulsing of a Low Energy Ion Beam

This paper discusses research on modeling and optimization of deflection slits for fast-pulsing of a low energy ion beam. The authors also investigate simulated slit configurations that reduce the length of the fields along the beam axis, thus optimizing the pulsing mechanism.
Date: March 30, 2006
Creator: Bosca, Ryan & Weathers, Duncan L.
Object Type: Paper
System: The UNT Digital Library

Modeling and Optimization of Deflection Slits for Fast-Pulsing of a Low Energy Ion Beam

Presentation for the 2006 University Scholars Day at the University of North Texas discussing research on modeling and optimization of deflection slits for fast-pulsing of a low energy ion beam.
Date: March 30, 2006
Creator: Bosca, Ryan & Weathers, Duncan L.
Object Type: Presentation
System: The UNT Digital Library
Sub-picosecond Resolution Time-to-Digital Converter (open access)

Sub-picosecond Resolution Time-to-Digital Converter

Time-to-digital converters with sub-picosecond resolutions are needed to satisfy the requirements of time-on-flight measurements of the next generation of high energy and nuclear physics experiments. The converters must be highly integrated, power effective, low cost, and feature plug-and-play capabilities to handle the increasing number of channels (up to hundreds of millions) in future Department of Energy experiments. Current state-off-the-art time-to-digital converter integrated circuits do not have the sufficient degree of integration and flexibility to fulfill all the described requirements. During Phase I, the Advanced Science and Novel Technology Company in cooperation with the nuclear physics division of the Oak Ridge National Laboratory has developed the architecture of a novel time-to-digital converter with multiple channels connected to an external processor through a special interfacing block and synchronized by clock signals generated by an internal phase-locked loop. The critical blocks of the system including signal delay lines and delay-locked loops with proprietary differential delay cells, as well as the required digital code converter and the clock period counter have been designed and simulated using the advanced SiGe120 BiCMOS technological process. The results of investigations demonstrate a possibility to achieve the digitization accuracy within 1ps. ADSANTEC has demonstrated the feasibility of the proposed …
Date: March 30, 2006
Creator: Bratov, Vladimir; Katzman, Vladimir & Binkley, Jeb
Object Type: Report
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 114, No. 63, Ed. 1 Thursday, March 30, 2006 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 114, No. 63, Ed. 1 Thursday, March 30, 2006

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: March 30, 2006
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Canadian Record (Canadian, Tex.), Vol. 116, No. 13, Ed. 1 Thursday, March 30, 2006 (open access)

The Canadian Record (Canadian, Tex.), Vol. 116, No. 13, Ed. 1 Thursday, March 30, 2006

Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date: March 30, 2006
Creator: Brown, Laurie Ezzell
Object Type: Newspaper
System: The Portal to Texas History
United Nations Peacekeeping: Issues for Congress (open access)

United Nations Peacekeeping: Issues for Congress

This report includes information regarding issues for Congress related United Nations peacekeeping and recent developments, background, funding, and various proposals
Date: March 30, 2006
Creator: Browne, Marjorie Ann
Object Type: Report
System: The UNT Digital Library
United Nations System Funding: Congressional Issues (open access)

United Nations System Funding: Congressional Issues

None
Date: March 30, 2006
Creator: Browne, Marjorie Ann & Bite, Vita
Object Type: Report
System: The UNT Digital Library
Studies in Low-Energy Nuclear Science (open access)

Studies in Low-Energy Nuclear Science

This report presents a summary of research projects in the area of low energy nuclear reactions and structure, carried out between 1 January 2003 and 31 December 2005 and supported by U.S. DOE grant number DE-FG03-03NA00074. Cross sections measured with high resolution have been subjected to an Ericson theory analysis to infer information about the nuclear level density. Other measurements were made of the spectral shape of particles produced in evaporation processes; these also yield level density information. A major project was the development of a new Hauser-Feshbach code for analyzing such spectra. Other measurements produced information on the spectra of gamma rays emitted in reactions on heavy nuclei and gave a means of refining our understanding of gamma-ray strength functions. Finally,reactions on light nuclei were studied and subjected to an R-matrix analysis. Cross sections fora network of nuclear reactions proceedingthrough a given compound nucleus shouldgreatly constrain the family of allowed parameters. Modifications to the formalism andcomputer code are also discussed.
Date: March 30, 2006
Creator: Brune, Carl R. & Grimes, Steven M.
Object Type: Text
System: The UNT Digital Library
Medal of Honor: History and Issues (open access)

Medal of Honor: History and Issues

This report considers the history of the Medal of Honor. In addition, the laws and regulations pertaining to the award, and the privileges/benefits available to the recipients are discussed. Finally, this report analyzes efforts to have the Medal of Honor awarded to certain individuals outside of the normal procedures.
Date: March 30, 2006
Creator: Burrelli, David F.
Object Type: Report
System: The UNT Digital Library
Medal of Honor: History and Issues (open access)

Medal of Honor: History and Issues

This report discusses the responsibility of the U.S. Department of Agriculture’s (USDA’s) Food Safety and Inspection Service (FSIS) for inspecting most meat, poultry, and processed egg products for safety, wholesomeness, and proper labeling.
Date: March 30, 2006
Creator: Burrelli, David F.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, March 30, 2006 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, March 30, 2006

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 30, 2006
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 305, Ed. 1 Thursday, March 30, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 305, Ed. 1 Thursday, March 30, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: March 30, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 110, Ed. 1 Thursday, March 30, 2006 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 85, No. 110, Ed. 1 Thursday, March 30, 2006

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 30, 2006
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History

[Antonio Lozano Hinojosa and his wife Maria]

Antonio Lozano Hinojosa con su esposa María en su casa. Antonio lleva una camisa marrón, abierta en la parte superior para mostrar una cadena de oro y una camiseta blanca. Lleva bigote y mira directamente a la cámara. Su esposa está detrás de él, con las manos sobre los hombros d e Antonio. Ella lleva una camisa negra y también mira a la cámara. A su derecha hay un jarrón de rosas rojas. Detrás de ellos se ve el interior de una cocina.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[Group of new U.S. citizens swears loyalty to the Constitution of the United States]

A group of people, with a young woman prominent in the photo, hold up their hands and swear loyalty to the Constitution of the United States. There were an estimated 500 persons at the ceremony, who swore fidelity and obedience to the Constitution of the United States and became citizens.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[The Lozano Hinojosa family at home]

The Lozano Hinojosa family at home.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[Man reads his United States citizenship certificate]

A man reads his United States citizenship certificate after the naturalization ceremony in Arlington, Texas.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[Man with a small U.S. flag and papers in his hands sits during a citizenship ceremony]

This photo shows some of the participants in a naturalization ceremony at the Convention Center in Arlington, Texas. There were an estimated 500 persons at the ceremony, who swore fidelity and obedience to the Constitution of the United States and became citizens.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[New citizen shakes hands with a member of the Texas Society, Sons of the American Revolution]

A new citizen shakes hands with a member of the Texas Society, Sons of the American Revolution at a Naturalization Ceremony in Arlington, Texas.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library

[New United States citizens hold up their certifactes and U. S. flags]

A group of new United States citizens hold their naturalization certificates and U. S. flags.
Date: March 30, 2006
Creator: Castillo, José L.
Object Type: Photograph
System: The UNT Digital Library