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IMPROVEMENT OF WEAR COMPONENT'S PERFORMANCE BY UTILIZING ADVANCED MATERIALS AND NEW MANUFACTURING TECHNOLOGIES: CASTCON PROCESS FOR MINING APPLICATIONS
In this reporting period, full disc prototype manufacturing tests continued. The disc size and HIP can problems were corrected. Unfortunately, cracking still occurred on insert interface, possibly due to oxidation film on the particle boundaries. This indicates improper off-gassing.
Date:
February 27, 2004
Creator:
Huang, Xiaodi & Gertsch, Richard
Object Type:
Report
System:
The UNT Digital Library
Intercity Passenger Rail: Amtrak's Management of Northeast Corridor Improvements Demonstrates Need for Applying Best Practices
A letter report issued by the General Accounting Office with an abstract that begins "In the 1990s, the National Railroad Passenger Corporation (Amtrak) undertook the Northeast High-Speed Rail Improvement Project to make infrastructure improvements that would enable Amtrak to meet a statutory goal of providing 3-hour intercity passenger rail service between Boston and New York City. Amtrak shared responsibility for implementing the project with commuter rail authorities and state governments, and the Federal Railroad Administration (FRA) developed a master plan for the project and provided federal funds to Amtrak. GAO reviewed (1) the status of the project, (2) Amtrak's management of the project, (3) FRA's oversight of the project, and (4) best practices for managing future large-scale rail infrastructure projects."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Legume Genome Initiative at the University of Oklahoma
Consolidated Appropriations Resolution, 2003 Conference Report for the Department of Energy's Biological and Environmental Research (BER) program provided $481,000 for the Legume Genome Initiative at the University of Oklahoma. These funds were used to support our research that is aimed at determining the entire sequence of the gene rich regions of the genome of the legume, Medicago truncatula, by allowing us to obtain a greater degree of finished BAC sequences from the draft sequences we have already obtained through research funded by the Noble Foundation. During the funding period we increased the number of Medicago truncatula BACs with finished (Bermuda standard) sequences from 109 to 359, and the total number of BACs for which we collected sequence data from 584 to 842, 359 of which reached phase 2 (ordered and oriented contigs). We also sequenced a series of pooled BAC clones that cover additional euchromatic (gene rich) genomic regions. This work resulted in 6 refereed publications, see below. Genes whose sequence was determined during this study included multiple members of the plant disease resistance (R-gene) family as well as several genes involved in flavinoid biosynthesis, nitrogen fixation and plant-microbial symbosis. This work also served as a prelude to obtaining NSF …
Date:
February 27, 2004
Creator:
Roe, Bruce A.
Object Type:
Report
System:
The UNT Digital Library
Maritime Law Exemption: Exemption Provides Limited Competitive Advantage, but Barriers to Further Entry under U.S. Flag Remain
A letter report issued by the General Accounting Office with an abstract that begins "No large U.S.-flagged cruise ships (ships registered in the U.S. that are U.S.-built, U.S.-owned, and U.S. crewed) are in operation. Foreignflagged vessels cruising to foreign ports serve most of the U.S. demand for cruises. However, Norwegian Cruise Line (NCL) recently obtained an exemption from U.S. maritime law to operate three foreign-built ships under the U.S. flag in Hawaii. Cruise lines and others have raised concerns over the advantage the exemption might confer to NCL, since foreign-flagged competitors are unable to offer the same itineraries due to the Passenger Vessel Services Act (PVSA), which prevents foreign vessels from transporting passengers solely between U.S. ports. Concerns have also been raised over the effect this exemption might have on future attempts to grow the U.S.-flag cruise vessel fleet, since potential U.S.-flag competitors would need to build ships in the United States, presumably at higher cost. GAO was asked to (1) review the original intent of the PVSA and rulings and decisions regarding it, (2) determine if the exemption will affect the implementation of the PVSA or other maritime laws, (3) assess the potential effects of the exemption on competition …
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Medicare Home Health: Payments to Most Freestanding Home Health Agencies More Than Cover Their Costs
A letter report issued by the General Accounting Office with an abstract that begins "Under Medicare's home health prospective payment system (PPS), home health agencies (HHA) are paid a fixed amount, adjusted for differences in individual patients' expected care needs, for providing an episode (up to 60 days) of care. For this payment, HHAs provide therapy, skilled nursing, medical social service, and aide visits to patients in their homes. GAO previously reported that PPS payments to HHAs were significantly above Medicare costs. GAO recommended that the Centers for Medicare & Medicaid Services (CMS), the agency that administers Medicare, modify the PPS to mitigate extreme financial gains and losses. HHA representatives have raised concerns that Medicare's PPS financially disadvantages certain urban and rural HHAs. GAO was asked to examine (1) whether Medicare payments cover HHAs' costs and (2) what factors distinguished financially weak HHAs from financially strong performers under Medicare. To address these issues, GAO used Medicare cost reports and claims data for freestanding HHAs. GAO analyzed Medicare margins--the difference between Medicare payments and Medicare costs, divided by Medicare payments."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Military Personnel: Bankruptcy Filings among Active Duty Service Members
Correspondence issued by the General Accounting Office with an abstract that begins "A declaration of bankruptcy is an extreme example of the failure to manage personal finances. Debtors who file personal bankruptcy petitions usually file under chapter 7 or chapter 13 of the bankruptcy code. Generally, debtors who file under chapter 7 of the bankruptcy code seek a discharge of all their eligible dischargeable debts. Debtors who file under chapter 13 submit a repayment plan, which must be confirmed by the bankruptcy court, for paying all or a portion of their debts over a 3-year period unless, for cause, the court approves a longer period not to exceed 5 years. This letter responds to the request of the Ranking Minority Member, Subcommittee on Oversight of Government Management, the Federal Workforce, and the District of Columbia, Senate Committee on Governmental Affairs. We determined (1) the rate of personal bankruptcy filings among active duty military personnel, and how that rate compared with the rate found in the U.S. population; and (2) factors that should be considered when attempting to compare the rate of bankruptcy filings for active duty military personnel with the rate for the U.S. population."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Mini-conference and Related Sessions on Laboratory Plasma Astrophysics
This paper provides a summary of some major physics issues and future perspectives discussed in the Mini-Conference on Laboratory Plasma Astrophysics. This Mini-conference, sponsored by the Topical Group on Plasma Astrophysics, was held as part of the American Physical Society's Division of Plasma Physics 2003 Annual Meeting (October 27-31, 2003). Also included are brief summaries of selected talks on the same topic presented at two invited paper sessions (including a tutorial) and two contributed focus oral sessions, which were organized in coordination with the Mini-Conference by the same organizers.
Date:
February 27, 2004
Creator:
Ji, Hantao
Object Type:
Report
System:
The UNT Digital Library
Modeling the Mechanical Performance of Die Casting Dies
The following report covers work performed at Ohio State on modeling the mechanical performance of dies. The focus of the project was development and particularly verification of finite element techniques used to model and predict displacements and stresses in die casting dies. The work entails a major case study performed with and industrial partner on a production die and laboratory experiments performed at Ohio State.
Date:
February 27, 2004
Creator:
Miller, R. A.
Object Type:
Report
System:
The UNT Digital Library
Multiple Ion Exchange Column Tests for Technetium Removal from Hanford Tank Waste Supernate
Five cycles of loading, elution, and regeneration were performed to remove technetium from a Hanford waste sample retrieved from Tank 241-AW-101 using SuperLig 639 resin. The waste sample was diluted to 4.95 M Na plus and then was processed to remove 137Cs through dual ion exchange columns each containing 15 mL of SuperLig 644. To remove 99Tc, the cesium decontaminated solution was processed downwards through two ion exchange columns, each containing 12 mL of SuperLig 639 resin. The columns, designated as lead and lag, each had an inside diameter of 1.45 cm and a height of 30 cm. The columns were loaded in series, but were eluted and then regenerated separately. The average technetium loading for the cycles was 250 BV at 10 percent breakthrough. There was no significant difference in the loading performances among the five cycles. The percent removal of 99Tc was greater than 99.94 percent and the average decontamination factor (DF) was approximately 1.7 x 103. Approximately 99 percent of the 99Tc loaded on the resin was eluted with less than 15 BV of de-ionized water at 65 degrees C.
Date:
February 27, 2004
Creator:
Hassan, N. M.
Object Type:
Article
System:
The UNT Digital Library
National Criminal History Improvement Program: Federal Grants Have Contributed to Progress
A letter report issued by the General Accounting Office with an abstract that begins "Public safety concerns require that criminal history records be accurate, complete, and accessible. Among other purposes, such records are used by the Federal Bureau of Investigation's (FBI) National Instant Criminal Background Check System (NICS) to ensure that prohibited persons do not purchase firearms. Initiated in 1995, the National Criminal History Improvement Program represents a partnership among federal, state, and local agencies to build a national criminal records infrastructure. Under the program, the Department of Justice's Bureau of Justice Statistics (BJS) annually provides federal grants to states to improve the quality of records and their accessibility through NICS and other national systems maintained by the FBI. GAO examined (1) how states have used program grant funds, particularly the extent to which such funds have been used for NICS-related purposes; (2) the progress--using program grants and other funding sources--that states have made in automating criminal history and other relevant records and making them accessible nationally; and (3) the various factors that are relevant considerations for policymakers in debating the future of the program."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
NATURAL CO2 FLOW FROM THE LOIHI VENT: IMPACT ON MICROBIAL PRODUCTION AND FATE OF THE CO2
The program for International Collaboration on CO{sub 2} Ocean Sequestration was initiated December 1997. Preliminary steps involved surveying a suite of biogeochemical parameters off the coast of Kona on the Big Island of Hawaii. The preliminary survey was conducted twice, in 1999 and 2000, to obtain a thorough data set including measurements of pH, current profiles, CO{sub 2} concentrations, microbial activities, and water and sediment chemistries. These data were collected in order to interpret a planned CO{sub 2} injection experiment. After these preliminary surveys were completed, local environment regulation forced moving the project to the coast north east of Bergen, Norway. The preliminary survey along the Norwegian Coast was conducted during 2002. However, Norwegian government revoked a permit, approved by the Norwegian State Pollution Control Authority, for policy reasons regarding the CO{sub 2} injection experiment. As a result the research team decided to monitor the natural CO{sub 2} flow off the southern coast of the Big Island. From December 3rd-13th 2002 scientists from four countries representing the Technical Committee of the International Carbon Dioxide Sequestration Experiment examined the hydrothermal venting at Loihi Seamount (Hawaiian Islands, USA). Work focused on tracing the venting gases, the impacts of the vent fluids on …
Date:
February 27, 2004
Creator:
Coffin, Richard B.; Boyd, Thomas J.; Knies, David L.; Grabowski, Kenneth S.; Pohlman, John W. & Mitchell, Clark S.
Object Type:
Report
System:
The UNT Digital Library
North Texas Daily (Denton, Tex.), Vol. 88, No. 83, Ed. 1 Friday, February 27, 2004
Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.
Date:
February 27, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Observation of the narrow state x (3872) --> j/psi pi+ pi- in pbar p collisions at s**(1/2) = 1.96 tev
The authors report the observation of a narrow state decaying into J/{psi}{pi}{sup +}{pi}{sup -} and produced in 220 pb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV in the CDF II experiment. They observe 730 {+-} 90 decays. The mass is measured to be 3871.3 {+-} 0.7(stat) {+-} 0.4(syst) MeV/c{sup 2}, with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.
Date:
February 27, 2004
Creator:
Acosta, D.
Object Type:
Report
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 87, No. 113, Ed. 1 Friday, February 27, 2004
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 27, 2004
Creator:
King, Christopher R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
One-dimensional ordering of ultra-low density ion beams in a storage ring
The two-particle model, first introduced by Hasse, is employed to predict the beam temperature at which a one-dimensional ordered state of ions will be established in a cooler storage ring. The proposed state does not have the ions (in the beam frame) at rest, but simply has them not passing each other; i.e., remaining in the same (ordered) sequence. The model is applicable to an ultra-low density beam where collective Coulomb interactions are negligible. It is pointed out that the nature of the anomalous beam behavior observed in electron-cooling experiments at GSI (Darmstadt) and MSL (Stockholm) is approximately free from such parameters as the lattice design, ion species, beam density and energy. On the basis of the model, which is put in Hamiltonian form, scaled, and numerically studied, a universal criterion of one-dimensional beam ordering at low line density is derived. Analytic work is employed to explain the numerical results and derives an approximate criterion.
Date:
February 27, 2004
Creator:
Okamoto, H.; Okabe, K.; Yuri, Y.; Mohl, D. & Sessler, A. M.
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with Charles Horton, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Charles Horton. Horton was born in Oklahoma 14 October 1920. Graduating from high school in 1939 he enlisted in the Army and was given a choice of joining a horse drawn artillery unit or the 4th Artillery Battalion, which was a pack mule outfit. Soon after joining the 4th Artillery, at Fort Bragg, he was selected to be a pitcher with the base baseball team. Having been selected, he never had basic training. He was transferred into the 79th Field Artillery and continued to play baseball. He was selected to be in the Instrument Survey Section and after two years he was promoted to Staff Sergeant. Soon after war was declared, he was selected to attend Officers Candidate School (OCS) at Fort Sill, Oklahoma. He was commissioned 21 January 1942 and assigned as Athletic Officer for the 97th Division being organized at Camp Swift, Texas. Within six months he joined class number 51 at Fort Benning, Georgia and began parachute training. Horton graduated from jump school and was assigned to the 462nd Parachute Field Artillery Battalion. He describes the train trip to Camp Stoneman, and the ocean voyage …
Date:
February 27, 2004
Creator:
Horton, Charles
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Charles Horton, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Charles Horton. Horton was born in Oklahoma 14 October 1920. Graduating from high school in 1939 he enlisted in the Army and was given a choice of joining a horse drawn artillery unit or the 4th Artillery Battalion, which was a pack mule outfit. Soon after joining the 4th Artillery, at Fort Bragg, he was selected to be a pitcher with the base baseball team. Having been selected, he never had basic training. He was transferred into the 79th Field Artillery and continued to play baseball. He was selected to be in the Instrument Survey Section and after two years he was promoted to Staff Sergeant. Soon after war was declared, he was selected to attend Officers Candidate School (OCS) at Fort Sill, Oklahoma. He was commissioned 21 January 1942 and assigned as Athletic Officer for the 97th Division being organized at Camp Swift, Texas. Within six months he joined class number 51 at Fort Benning, Georgia and began parachute training. Horton graduated from jump school and was assigned to the 462nd Parachute Field Artillery Battalion. He describes the train trip to Camp Stoneman, and the ocean voyage …
Date:
February 27, 2004
Creator:
Horton, Charles
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with Ed Llewellyn, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Ed Llewellyn. Llewellyn joined the paratroopers after joining the Army. He trained at Fort Benning. He was scheduled to jump on Corregidor, but his transport ship could not keep up with the convoy. He joined his unit elsewhere in the Philippines. He contracted hepatitis and was evacuated from combat to a hospital. When the war ended, Llewellyn went to Japan for occupation duty.
Date:
February 27, 2004
Creator:
Llewellyn, Ed
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Ed Llewellyn, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Ed Llewellyn. Llewellyn joined the paratroopers after joining the Army. He trained at Fort Benning. He was scheduled to jump on Corregidor, but his transport ship could not keep up with the convoy. He joined his unit elsewhere in the Philippines. He contracted hepatitis and was evacuated from combat to a hospital. When the war ended, Llewellyn went to Japan for occupation duty.
Date:
February 27, 2004
Creator:
Llewellyn, Ed
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with George Clay, February 27, 2004
The National Museum of the Pacific War presents an interview with George Clay. Clay joined the Army in 1940. Beginning August of 1941, he served with the 503rd Parachute Infantry Regiment, serving in the Pacific Theater. In September of 1943, they participated in the New Guinea Campaign. Clay served until late 1943, early 1944. His discharge date is not noted.
Date:
February 27, 2004
Creator:
Clay, George
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with George Clay, February 27, 2004
The National Museum of the Pacific War presents an interview with George Clay. Clay joined the Army in 1940. Beginning August of 1941, he served with the 503rd Parachute Infantry Regiment, serving in the Pacific Theater. In September of 1943, they participated in the New Guinea Campaign. Clay served until late 1943, early 1944. His discharge date is not noted.
Date:
February 27, 2004
Creator:
Clay, George
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with Guy Lary, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Guy Lary. Lary enlisted in the Army in 1943. He discusses his training as a paratrooper at Fort Benning. Lary joined the 503rd Parachute Infantry Regiment as a replacement. He details the jump on Corregidor and the fighting that followed. Lary was then sent to Negros Island where he remained until the surrender of Japan. He went to Japan for the occupation duty and left the service soon after his return to the US.
Date:
February 27, 2004
Creator:
Lary, Guy
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Guy Lary, February 27, 2004
The National Museum of the Pacific War presents an oral interview with Guy Lary. Lary enlisted in the Army in 1943. He discusses his training as a paratrooper at Fort Benning. Lary joined the 503rd Parachute Infantry Regiment as a replacement. He details the jump on Corregidor and the fighting that followed. Lary was then sent to Negros Island where he remained until the surrender of Japan. He went to Japan for the occupation duty and left the service soon after his return to the US.
Date:
February 27, 2004
Creator:
Lary, Guy
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with Nelson Gatewood, February 27, 2004
The National Museum of the Pacific War presents an interview with Nelson Gatewood. Gatewood joined the Army in January of 1943. He served with the 503rd Parachute Infantry Regiment. In late 1943, Gatewood participated in the New Guinea Campaign. In February of 1945, he served in the Battle of Corregidor. He was discharged in December of 1945.
Date:
February 27, 2004
Creator:
Gatewood, Nelson
Object Type:
Sound
System:
The Portal to Texas History