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FULL SCALE TESTING TECHNOLOGY MATURATION OF A THIN FILM EVAPORATOR FOR HIGH-LEVEL LIQUID WASTE MANAGEMENT AT HANFORD - 12125
Simulant testing of a full-scale thin-film evaporator system was conducted in 2011 for technology development at the Hanford tank farms. Test results met objectives of water removal rate, effluent quality, and operational evaluation. Dilute tank waste simulant, representing a typical double-shell tank supernatant liquid layer, was concentrated from a 1.1 specific gravity to approximately 1.5 using a 4.6 m{sup 2} (50 ft{sup 2}) heated transfer area Rototherm{reg_sign} evaporator from Artisan Industries. The condensed evaporator vapor stream was collected and sampled validating efficient separation of the water. An overall decontamination factor of 1.2E+06 was achieved demonstrating excellent retention of key radioactive species within the concentrated liquid stream. The evaporator system was supported by a modular steam supply, chiller, and control computer systems which would be typically implemented at the tank farms. Operation of these support systems demonstrated successful integration while identifying areas for efficiency improvement. Overall testing effort increased the maturation of this technology to support final deployment design and continued project implementation.
Date:
January 26, 2012
Creator:
AR, TEDESCHI; JE, CORBETT; RA, WILSON & J, LARKIN
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with Roger Anderson, October 26, 2012
The National Museum of the Pacific War presents an interview with Roger Anderson. Anderson joined the Army Air Forces in mid-1943. He served as a B-24 gunner. Anderson deployed in June of 1944 to Australia. He completed 42 missions, including over the Palau Islands, the Philippines and throughout the Pacific. He describes his work aboard a B-24. Anderson was discharged in late 1945.
Date:
October 26, 2012
Creator:
Anderson, Roger
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Roger Anderson, October 26, 2012
The National Museum of the Pacific War presents an interview with Roger Anderson. Anderson joined the Army Air Forces in mid-1943. He served as a B-24 gunner. Anderson deployed in June of 1944 to Australia. He completed 42 missions, including over the Palau Islands, the Philippines and throughout the Pacific. He describes his work aboard a B-24. Anderson was discharged in late 1945.
Date:
October 26, 2012
Creator:
Anderson, Roger
Object Type:
Text
System:
The Portal to Texas History
Midterm Progress Report for TORUS Topical Collaboration in Nuclear Theory
None
Date:
July 26, 2012
Creator:
Arbanas, G.; Elster, C.; Escher, J.; Mukhamedzhanov, A.; Nunes, F. & Thompson, I. J.
Object Type:
Report
System:
The UNT Digital Library
European Union Enlargement
This report discusses the status of European Union (EU) enlargement and its implications for both the EU itself and U.S.-EU relations. It includes a history of the European Union, the process of enlargement, overviews of current EU candidates, prospects for future enlargements, and U.S. perspectives.
Date:
January 26, 2012
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
The Debt Limit: History and Recent Increases
This report gives an overview of the federal debt limit, its history, and recent increases
Date:
January 26, 2012
Creator:
Austin, D. Andrew & Levit, Mindy R.
Object Type:
Report
System:
The UNT Digital Library
Large N (=3) Neutrinos and Random Matrix Theory
None
Date:
October 26, 2012
Creator:
Bai, Yang & Torroba, Gonzalo
Object Type:
Article
System:
The UNT Digital Library
Preparing Algebraic Multigrid for Exascale
None
Date:
February 26, 2012
Creator:
Baker, A H; Falgout, R D; Gahvari, H; Gamblin, T; Gropp, W; Kolev, T V et al.
Object Type:
Report
System:
The UNT Digital Library
Terahertz Radiation from a Pipe with Small Corrugations
We have studied through analytical and numerical methods the use of a relativistic electron bunch to drive a metallic beam pipe with small corrugations for the purpose of generating terahertz radiation. For the case of a pipe with dimensions that do not change along its length, we have shown that - with reasonable parameters - one can generate a narrow-band radiation pulse with frequency {approx}1 THz, and total energy of a few milli-Joules. The pulse length tends to be on the order of tens of picoseconds. We have also shown that, if the pipe radius is tapered along its length, the generated pulse will end up with a frequency chirp; if the pulse is then made to pass through a compressor, its final length can be reduced to a few picoseconds and its peak power increased to 1 GW. We have also shown that wall losses tend to be significant and need to be included in the structure design.
Date:
January 26, 2012
Creator:
Bane, K. L. F. & Stupakov, G.
Object Type:
Report
System:
The UNT Digital Library
Results for the Third Quarter 2012 Tank 50 WAC Slurry Sample: Chemical and Radionuclide Contaminants
This report details the chemical and radionuclide contaminant results for the characterization of the 2012 Third Quarter sampling of Tank 50 for the Saltstone Waste Acceptance Criteria (WAC). Information from this characterization will be used by Waste Solidification Engineering (WSE) 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:
October 26, 2012
Creator:
Bannochie, C. J.
Object Type:
Report
System:
The UNT Digital Library
[Email from Dreanna Beldon to Jack and George, March 26, 2012]
Email from Dreanna Beldon to Jack and George discussing a meeting between the Dallas Way and the University of North Texas.
Date:
March 26, 2012
Creator:
Beldon, Dreanna
Object Type:
Letter
System:
The UNT Digital Library
Tax Reform: An Overview of Proposals in the 112th Congress
This report gives an overview of tax reform issues. The President and leading members of Congress have stated that fundamental tax reform is a major policy objective for the 112th Congress. Some Members have said that fundamental tax reform is needed in order to raise a large amount of additional revenue, which is necessary to reduce high forecast budget deficits and the sharply rising national debt. Congressional interest has been expressed in both a major overhaul of the U.S. tax system and the feasibility of levying a consumption tax.
Date:
October 26, 2012
Creator:
Bickley, James M.
Object Type:
Report
System:
The UNT Digital Library
PROGRESS ON GENERIC PHASE-FIELD METHOD DEVELOPMENT
In this report, we summarize our current collobarative efforts, involving three national laboratories: Idaho National Laboratory (INL), Pacific Northwest National Laboratory (PNNL) and Los Alamos National Laboatory (LANL), to develop a computational framework for homogenous and heterogenous nucleation mechanisms into the generic phase-field model. During the studies, the Fe-Cr system was chosen as a model system due to its simplicity and availability of reliable thermodynamic and kinetic data, as well as the range of applications of low-chromium ferritic steels in nuclear reactors. For homogenous nucleation, the relavant parameters determined from atomistic studies were used directly to determine the energy functional and parameters in the phase-field model. Interfacial energy, critical nucleus size, nucleation rate, and coarsening kinetics were systematically examined in two- and three- dimensional models. For the heteregoneous nucleation mechanism, we studied the nucleation and growth behavior of chromium precipitates due to the presence of dislocations. The results demonstrate that both nucleation schemes can be introduced to a phase-field modeling algorithm with the desired accuracy and computational efficiency.
Date:
September 26, 2012
Creator:
Biner, Bullent; Tonks, Michael; Millett, Paul C.; Li, Yulan; Hu, Shenyang Y.; Gao, Fei et al.
Object Type:
Report
System:
The UNT Digital Library
International Family Planning Programs: Issues for Congress
This report looks at how the debate over family planning within the U.S. is spilling over to U.S.-funded family planning programs abroad.
Date:
June 26, 2012
Creator:
Blanchfield, Luisa
Object Type:
Report
System:
The UNT Digital Library
Hydropower: Federal and Nonfederal Investment
This report discusses the changing energy and economic landscape, as well as the roughly 25 bills introduced by the 112th Congress regarding hydropower (the use of flowing water to produce electricity). Congress is examining numerous energy sources to determine their contribution to the nation's energy portfolio and the federal role in supporting these sources, including hydropower.
Date:
June 26, 2012
Creator:
Bracmort, Kelsi; Stern, Charles V. & Vann, Adam
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, October 26, 2012
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 26, 2012
Creator:
Bright, James
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, December 26, 2012
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 26, 2012
Creator:
Bright, James
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, September 26, 2012
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 26, 2012
Creator:
Bright, James
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oral History Interview with Vladislava Alaytseva, November 26, 2012
Access:
Use of this item is restricted to the UNT Community
Interview with Vladislava Alaytseva, Uzbekistani-born immigrant to Dallas, Texas, for the DFW Metroplex Immigrants Oral History Project. The interview includes Alaytseva's personal experiences of childhood in Uzbekistan, moving to the U.S., transitioning to the American school system, her first impressions the U.S., and the culture shock in America. Additionally, Alaytseva talks about the transition of Uzbekistan from a Soviet satellite to an independent Muslim nation, her mother's family in Russia, the differentiation between being ethnically Russian or Uzbekistani, the definition of "culture," the comparison of life in Uzbekistan and the U.S., and the elements of Uzbekistani culture brought to America.
Date:
November 26, 2012
Creator:
Brooks, David & Alaytseva, Vladislava
Object Type:
Book
System:
The UNT Digital Library
Oral History Interview with John Brosius, October 26, 2012
The National Museum of the Pacific War presents an oral interview with John Brosius. Brosius joined the Army Air Forces after graduating from college and working as an agricultural supply manager. He washed out of cadet training when it was determined he was at risk for asthma. He was then sent to Harvard Business School and trained in statistical control, a new military discipline. Upon completion, he was assigned to the 19th Bombardment Group in Australia and designed his own method of surveying operations. He also received permission to travel to Sydney to arrange for the publication of a yearbook depicting his unit’s wartime experiences. In 1943 Brosius was sent to Monterey to study military government in anticipation of the occupation of Japan. At the end of 1945 however, he seized an opportunity to return home and retired as a major. Despite being invited to join an elite group of military veteran statisticians known as the Whiz Kids, who would go on to run Ford Motor Company, Brosius chose instead a career in land development and construction.
Date:
October 26, 2012
Creator:
Brosius, John
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with John Brosius, October 26, 2012
The National Museum of the Pacific War presents an oral interview with John Brosius. Brosius joined the Army Air Forces after graduating from college and working as an agricultural supply manager. He washed out of cadet training when it was determined he was at risk for asthma. He was then sent to Harvard Business School and trained in statistical control, a new military discipline. Upon completion, he was assigned to the 19th Bombardment Group in Australia and designed his own method of surveying operations. He also received permission to travel to Sydney to arrange for the publication of a yearbook depicting his unit’s wartime experiences. In 1943 Brosius was sent to Monterey to study military government in anticipation of the occupation of Japan. At the end of 1945 however, he seized an opportunity to return home and retired as a major. Despite being invited to join an elite group of military veteran statisticians known as the Whiz Kids, who would go on to run Ford Motor Company, Brosius chose instead a career in land development and construction.
Date:
October 26, 2012
Creator:
Brosius, John
Object Type:
Text
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 122, No. 17, Ed. 1 Thursday, April 26, 2012
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
April 26, 2012
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 122, No. 30, Ed. 1 Thursday, July 26, 2012
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
July 26, 2012
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Disruptions, Disruptivity, and Safer Operating Windows in the High-β Spherical Torus NSTX
A fusion pilot plant study was initiated to clarify the development needs in moving from ITER to a first of a kind fusion power plant. The mission of the pilot plant was set to encompass component test and fusion nuclear science missions yet produce net electricity with high availability in a device designed to be prototypical of the commercial device. The objective of the study was to evaluate three different magnetic configuration options, the advanced tokamak (AT), spherical tokamak (ST) and compact stellarator (CS) in an effort to establish component characteristics, maintenance features and the general arrangement of each candidate device. With the move to look beyond ITER the fusion community is now beginning to embark on DEMO reactor studies with an emphasis on defining configuration arrangements that can meet a high availability goal. This paper reviews the AT pilot plant design, detailing the selected maintenance approach, the device arrangement and sizing of the in-vessel components. Details of interfacing auxiliary systems and services that impact the ability to achieve high availability operations will also be discussed.
Date:
September 26, 2012
Creator:
Brown, T.; Goldston, R. J.; El-Guebaly, L.; Kessel, C.; Neilson, G. H.; Malang, S. et al.
Object Type:
Article
System:
The UNT Digital Library