Degree Discipline

Degree Level

Month

50 Matching Results

Results open in a new window/tab.

Impacts of Antifoam Additions and Argon Bubbling on Defense Waste Processing Facility Reduction/Oxidation (open access)

Impacts of Antifoam Additions and Argon Bubbling on Defense Waste Processing Facility Reduction/Oxidation

During melting of HLW glass, the REDOX of the melt pool cannot be measured. Therefore, the Fe{sup +2}/{Sigma}Fe ratio in the glass poured from the melter must be related to melter feed organic and oxidant concentrations to ensure production of a high quality glass without impacting production rate (e.g., foaming) or melter life (e.g., metal formation and accumulation). A production facility such as the Defense Waste Processing Facility (DWPF) cannot wait until the melt or waste glass has been made to assess its acceptability, since by then no further changes to the glass composition and acceptability are possible. therefore, the acceptability decision is made on the upstream process, rather than on the downstream melt or glass product. That is, it is based on 'feed foward' statistical process control (SPC) rather than statistical quality control (SQC). In SPC, the feed composition to the melter is controlled prior to vitrification. Use of the DWPF REDOX model has controlled the balanjce of feed reductants and oxidants in the Sludge Receipt and Adjustment Tank (SRAT). Once the alkali/alkaline earth salts (both reduced and oxidized) are formed during reflux in the SRAT, the REDOX can only change if (1) additional reductants or oxidants are added …
Date: June 5, 2012
Creator: Jantzen, Carol M. & Johnson, F. C.
Object Type: Report
System: The UNT Digital Library
The Enemy is Still Below: The Global Diffusion of Submarines and Related Technology (open access)

The Enemy is Still Below: The Global Diffusion of Submarines and Related Technology

The spread of submarines and related technology is an end product of globalization. Globalization is not a new story. By one estimate, our ancestors first crossed out of Africa roughly 80,000 years ago, and began the process that they now call globalization. With the dispersion of people around the world came the development of culture and civilization as well as the spread of ideas, goods, and technology. The process of globalization then is a long-standing one, not an innovation of the late 20th and early 21st centuries. Over the millennia, this process has been an uneven one. Globalization has often cuased great disruptions even to the societies that initiated various innovations in culture and civilization, including science and technology. Indeed, many cultures and civilizations have disappeared while some regions failed to advance as rapidly as others, so the process of globalization is not just one of continuing progress. Globalization in the current era seems to be penetrating the most remote corners of the world at a remarkable rate as a result of advances in science and technology, particularly information technology. The diffusion of science and technology is not necessarily a benign development. It could increase the potential for a global …
Date: June 5, 2012
Creator: Weiss, K G
Object Type: Report
System: The UNT Digital Library
Recent Advances and New Techniques in Visualization of Ultra-short Relativistic Electron Bunches (open access)

Recent Advances and New Techniques in Visualization of Ultra-short Relativistic Electron Bunches

Ultrashort electron bunches with rms length of {approx} 1 femtosecond (fs) can be used to generate ultrashort x-ray pulses in FELs that may open up many new regimes in ultrafast sciences. It is also envisioned that ultrashort electron bunches may excite {approx}TeV/m wake fields for plasma wake field acceleration and high field physics studies. Recent success of using 20 pC electron beam to drive an x-ray FEL at LCLS has stimulated world-wide interests in using low charge beam (1 {approx} 20 pC) to generate ultrashort x-ray pulses (0.1 fs {approx} 10 fs) in FELs. Accurate measurement of the length (preferably the temporal profile) of the ultrashort electron bunch is essential for understanding the physics associated with the bunch compression and transportation. However, the shorter and shorter electron bunch greatly challenges the present beam diagnostic methods. In this paper we review the recent advances in the measurement of ultra-short electron bunches. We will focus on several techniques and their variants that provide the state-of-the-art temporal resolution. Methods to further improve the resolution of these techniques and the promise to break the 1 fs time barrier is discussed. We review recent advances in the measurement of ultrashort relativistic electron bunches. We will …
Date: June 5, 2012
Creator: Xiang, Dao
Object Type: Article
System: The UNT Digital Library
PRECEDENTS FOR AUTHORIZATION OF CONTENTS USING DOSE RATE MEASUREMENTS (open access)

PRECEDENTS FOR AUTHORIZATION OF CONTENTS USING DOSE RATE MEASUREMENTS

For the transportation of Radioactive Material (RAM) packages, the requirements for the maximum allowed dose rate at the package surface and in its vicinity are given in Title 10 of the Code of Federal Regulations, Section 71.47. The regulations are based on the acceptable dose rates to which the public, workers, and the environment may be exposed. As such, the regulations specify dose rates, rather than quantity of radioactive isotopes and require monitoring to confirm the requirements are met. 10CFR71.47 requires that each package of radioactive materials offered for transportation must be designed and prepared for shipment so that under conditions normally incident to transportation the radiation level does not exceed 2 mSv/h (200 mrem/h) at any point on the external Surface of the package, and the transport index does not exceed 10. Before shipment, the dose rate of the package is determined by measurement, ensuring that it conforms to the regulatory limits, regardless of any analyses. This is the requirement for all certified packagings. This paper discusses the requirements for establishing the dose rates when shipping RAM packages and the precedents for meeting these requirements by measurement.
Date: June 5, 2012
Creator: Abramczyk, G.; Bellamy, S.; Nathan, S. & Loftin, B.
Object Type: Article
System: The UNT Digital Library
Ability to Repay, Risk-Retention Standards, and Mortgage Credit Access (open access)

Ability to Repay, Risk-Retention Standards, and Mortgage Credit Access

This report examines the developments associated with the implementation of mortgage lending reforms. The report begins with a summary of proposed ability to repay and risk-retention standards. Next, the report describes risky underwriting and financing practices that occurred prior to the mortgage crisis, followed by a discussion of how access to mortgage credit might be affected.
Date: June 5, 2012
Creator: Getter, Darryl E.
Object Type: Report
System: The UNT Digital Library
Charge transfer equilibria in ambient-exposed epitaxial graphene on (0001) 6 H-SiC (open access)

Charge transfer equilibria in ambient-exposed epitaxial graphene on (0001) 6 H-SiC

Article discussing research on charge transfer equilibria in ambient-exposed epitaxial graphene on (0001) 6 H-SiC.
Date: June 5, 2012
Creator: Sidorov, Anton N.; Gaskill, D. Kurt.; Buongiorno Nardelli, Marco; Tedesco, Joseph L.; Myers-Ward, Rachel L.; Eddy, Charles R. et al.
Object Type: Article
System: The UNT Digital Library
Oral History Interview with Frank C. Litters, Jr., June 5, 2012 transcript

Oral History Interview with Frank C. Litters, Jr., June 5, 2012

The National Museum of the Pacific War presents an oral interview with Frank C. Litters, Jr. Litters was attending Texas A&M (class of 1943) when the war started. His class was graduated early so they could begin active military service. He was commissioned and attached to an anti-aircraft artillery unit. In December, 1943, he shipped out for the Pacific. In January, 1944 his unit, the 208th Anti-aircraft Artillery battalion, arrived at New Guinea. Litters eventually got so sick with malaria and dengue fever, and with a severe knee injury, he was shipped back to the US in May, 1945. Litters was discharged and began teaching at Texas A&M University before beginning to ranch. He also tells a ashort story about being a Distinguished Alumni from Texas A&M and talking to former President George HW Bush.
Date: June 5, 2012
Creator: Litters, Frank C.
Object Type: Sound
System: The Portal to Texas History
Oral History Interview with Genny Kercheville, June 5 2012 transcript

Oral History Interview with Genny Kercheville, June 5 2012

Interview with Genny Kercheville, a rancher.
Date: June 5, 2012
Creator: Roberts, Kenneth D. & Kercheville, Genny
Object Type: Sound
System: The Portal to Texas History
Transcript of Oral History Interview with Pete Kaufman, June 5 2012 (open access)

Transcript of Oral History Interview with Pete Kaufman, June 5 2012

Transcript of an interview with Pete Kaufman, a farmer.
Date: June 5, 2012
Creator: unknown
Object Type: Text
System: The Portal to Texas History
Transcript of Oral History Interview with Genny Kercheville, June 5 2012 (open access)

Transcript of Oral History Interview with Genny Kercheville, June 5 2012

Transcript of an interview with Genny Kercheville, a rancher.
Date: June 5, 2012
Creator: unknown
Object Type: Text
System: The Portal to Texas History
Oral History Interview with Frank C. Litters, Jr., June 5, 2012 (open access)

Oral History Interview with Frank C. Litters, Jr., June 5, 2012

The National Museum of the Pacific War presents an oral interview with Frank C. Litters, Jr. Litters was attending Texas A&M (class of 1943) when the war started. His class was graduated early so they could begin active military service. He was commissioned and attached to an anti-aircraft artillery unit. In December, 1943, he shipped out for the Pacific. In January, 1944 his unit, the 208th Anti-aircraft Artillery battalion, arrived at New Guinea. Litters eventually got so sick with malaria and dengue fever, and with a severe knee injury, he was shipped back to the US in May, 1945. Litters was discharged and began teaching at Texas A&M University before beginning to ranch. He also tells a ashort story about being a Distinguished Alumni from Texas A&M and talking to former President George HW Bush.
Date: June 5, 2012
Creator: Litters, Frank C.
Object Type: Text
System: The Portal to Texas History
Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 132, No. 52, Ed. 1 Tuesday, June 5, 2012 (open access)

Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 132, No. 52, Ed. 1 Tuesday, June 5, 2012

Weekly newspaper from Jacksboro, Texas that includes local, state and national news along with advertising.
Date: June 5, 2012
Creator: Hudson, Pam
Object Type: Newspaper
System: The Portal to Texas History
The Ennis Daily News (Ennis, Tex.), Ed. 1 Tuesday, June 5, 2012 (open access)

The Ennis Daily News (Ennis, Tex.), Ed. 1 Tuesday, June 5, 2012

Daily newspaper from Ennis, Texas that includes local, state and national news along with advertising.
Date: June 5, 2012
Creator: Todaro, Nick
Object Type: Newspaper
System: The Portal to Texas History
Department of Defense Energy Initiatives: Background and Issues for Congress (open access)

Department of Defense Energy Initiatives: Background and Issues for Congress

The Department of Defense (DOD) spends billions of dollars per year on fuel, and is pursuing numerous initiatives for reducing its fuel needs and changing the mix of energy sources that it uses. DOD's energy initiatives pose several potential oversight issues for Congress, and have been topics of discussion and debate at hearings on DOD's proposed FY2013 budget.
Date: June 5, 2012
Creator: Schwartz, Moshe; Blakeley, Katherine & O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
Health Care Flexible Spending Accounts (open access)

Health Care Flexible Spending Accounts

Health care Flexible Spending Accounts (FSAs) are benefit plans established by employers to reimburse employees for health care expenses such as deductibles and copayments. FSAs are usually funded by employees through salary reduction agreements, although employers are permitted to contribute as well. The contributions to and withdrawals from FSAs are tax-exempt. This report discusses two recent bills, the Patient Protection and Affordable Care Act (ACA) and the Health Care Cost Reduction Act of 2012, both of which limits contributions to FSAs and redefines over the counter (OTC) drugs,
Date: June 5, 2012
Creator: Mulvey, Janemarie
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 111, Ed. 1 Tuesday, June 5, 2012 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 92, No. 111, Ed. 1 Tuesday, June 5, 2012

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: June 5, 2012
Creator: Yanelli, Adam
Object Type: Newspaper
System: The Portal to Texas History

[Transit of Venus, view from McKenna Park, 2]

Photograph of Venus traversing the Sun, taken from McKenna Park in Denton, Texas. Venus, visible as a small black dot, can be seen moving across the upper-right portion of the Sun during sunset.
Date: June 5, 2012
Creator: Chaney, Ken
Object Type: Photograph
System: The UNT Digital Library

[Transit of Venus, view from McKenna Park, 4]

Photograph of Venus traversing the Sun, taken from McKenna Park in Denton, Texas. Venus, visible as a small black dot, can be seen moving across the upper-right portion of the Sun during sunset. The Sun has been partially blocked from view by a row of clouds.
Date: June 5, 2012
Creator: Chaney, Ken
Object Type: Photograph
System: The UNT Digital Library

Senior Recital: 2012-06-05 - David López González

Access: Use of this item is restricted to the UNT Community
A senior recital presented at the UNT College of Music Voertman Hall.
Date: June 5, 2012
Creator: González, David López
Object Type: Sound
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 97, No. 186, Ed. 1 Tuesday, June 5, 2012 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 97, No. 186, Ed. 1 Tuesday, June 5, 2012

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: June 5, 2012
Creator: Gibbs, Angenene
Object Type: Newspaper
System: The Gateway to Oklahoma History
[Minutes: The Dallas Way, June 5, 2012] (open access)

[Minutes: The Dallas Way, June 5, 2012]

Minutes for the June 5th meeting of the Dallas Way listing the topics of discussion for the meeting and the treasury report.
Date: June 5, 2012
Creator: The Dallas Way
Object Type: Text
System: The UNT Digital Library
Area transit agencies enticing commuters to "Dump the Pump" this month (open access)

Area transit agencies enticing commuters to "Dump the Pump" this month

News release about DART's, the T's, and the DCTA's participation in the APTA's "Dump the Pump" campaign to get more people to switch from single occupant vehicles to public transportation. Part of the campaign involves offering a free week pass to non-transit users in exchange for a gasoline receipt.
Date: June 5, 2012
Creator: Lyons, Morgan; Ball, Mark; Leggett, Dee & Hunter, Joan
Object Type: Text
System: The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, June 5, 2012 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, June 5, 2012

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: June 5, 2012
Creator: DeSilver, Debi
Object Type: Newspaper
System: The Gateway to Oklahoma History

[Transit of Venus, view from McKenna Park, 1]

Photograph of Venus traversing the Sun, taken from McKenna Park in Denton, Texas. Venus, visible as a small black dot, can be seen moving across the upper-right portion of the Sun during sunset.
Date: June 5, 2012
Creator: Chaney, Ken
Object Type: Photograph
System: The UNT Digital Library