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1 - 24 of
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1: Mass asymmetric fission barriers for {sup 98}Mo; 2: Synthesis and characterization of actinide-specific chelating agents
Excitation functions have been measured for complex fragment emission from the compound nucleus {sup 98}Mo, produced by the reaction of {sup 86}Kr with {sup 12}C. Mass asymmetric fission barriers have been obtained by fitting the excitation functions with a transition state formalism. The extracted barriers are {approximately} 5.7 MeV higher, on average, than the calculations of the Rotating Finite Range Model (RFRM). These data clearly show an isospin dependence of the conditional barriers when compared with the extracted barriers from {sup 90}Mo and {sup 94}Mo. Eleven different liquid/liquid extractants were synthesized based upon the chelating moieties 3,2-HOPO and 3,4-HOPO; additionally, two liquid/liquid extractants based upon the 1,2-HOPO chelating moiety were obtained for extraction studies. The Pu(IV) extractions, quite surprisingly, yielded results that were very different from the Fe(III) extractions. The first trend remained the same: the 1,2-HOPOs were the best extractants, followed closely by the 3,2-HOPOs, followed by the 3,4-HOPOs; but in these Pu(IV) extractions the 3,4-HOPOs performed much better than in the Fe(III) extractions. 129 refs.
Date:
August 1, 1996
Creator:
Veeck, A. C.
Object Type:
Report
System:
The UNT Digital Library
The 10,000-year debate
Probabilistic Risk Assessment (PRA) has developed into a respected tool within the reactor community. Now, this PRA technique is being applied to a new arena, the distant future of the nuclear waste repository. Problems are already testing the credibility of PRA.
Date:
August 1996
Creator:
Wilson, J. R.
Object Type:
Article
System:
The UNT Digital Library
A 20 ampere shunt regulator for controlling individual magnets in a seriesed string
At the CEBAF accelerator, groups of dipole magnets are often connected together in series and powered from a single large constant-current regulated D-C supply, referred to locally as a {open_quotes}box{close_quotes} supply. Besides the economy realized, this configuration promotes correct field tracking of all elements of a beam transport channel. However, it is often desirable to vary the current in one element of a string independently of the others, particularly at the entrance and exits of transport channels. A 20 ampere programmable current shunt is described. Installed in parallel with the desired magnet, it permits shunting (bypassing) up to 5% of the string current around that magnet. The shunt regulator consists of a bank of MOSFET power transistors operated in linear mode. Regulation of current through the passbank is obtained by feedback from a manganin shunt maintained at a constant temperature for stability. The module is designed for remote operation and provides readbacks of various parameters useful for maintenance. To achieve complete electrical isolation, an onboard microprocessor provides remote communications via an opto-isolated serial data link. Constructional details and initial operating experience with the plug-in shunt are described.
Date:
August 1, 1996
Creator:
Martin, E. J.; Dobeck, N.; Jones, G. S. & O`Sullivan, M. K.
Object Type:
Article
System:
The UNT Digital Library
200 Area Effluent Treatment Facility set-values selection basis
This document identifies the set-values and selection basis to support operation of the 200 Area ETF and 200 Area TEDF.
Date:
August 7, 1996
Creator:
Crane, A.F., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
222-S Analytical services final results for Tank 241-U-101, grab samples 1U-96-1 through 1U-96-4
This document is the final, format IV, laboratory report for characterization of tank 241-U-101 (U-101) grab samples from risers 1 and 7. It transmits additional analytical data for specific gravity (Sp.G.), and all raw analytical data which were not provided in the 45-day report. The 45-day report is attached to this final report as Part II. Secondary analyses were not performed on any of the U-101 samples. This is because none of the primary analyte limits, which trigger the performance of secondary analyses, were exceeded. Grab samples were taken on May 29, 1996 and May 30, 1996 from risers 1 and 7, respectively, and were received at the 222-S Laboratory on the same days that they were collected. Analyses were performed in accordance with the Tank Sampling and Analysis Plan (TSAP) for this tank and the Safety Screening Data Quality Objective (DQO). The samples were analyzed for differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), total alpha activity (AT), visual appearance, bulk density, and specific gravity. A sample data summary table, includes sample analytical data accompanied by quality control data (for example, duplicate, spike, blank and standard results and detection limits and counting efforts). The table includes data for DSC, TGA, …
Date:
August 23, 1996
Creator:
Miller, G. L.
Object Type:
Report
System:
The UNT Digital Library
222-S Laboratory analytical report for tank 241-C-106, grab samples 6C-96-1 through 6C-96-16 {ampersand} 6C-96-17-FB
This document is the analytical report for grab samples 6C-96-1through 6C-96-16 and 6C-96-17-FB from tank 241-C-106.
Date:
August 6, 1996
Creator:
Esch, R. A.
Object Type:
Report
System:
The UNT Digital Library
340 Representative sampling verification tank sampling and analysis plan
This Sampling and Analysis Plan contains requirements for characterizing the 340 vault tank 1. The objective of the sampling and characterization is to determine if the tank is homogeneous when agitated and which sampling method provides the most representative sample. A secondary objective is to collect and characterize solid samples.
Date:
August 21, 1996
Creator:
Olander, A.R., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
340 Representative sampling verification tank sampling and analysis plan
This Sampling and Analysis Plan contains requirements for characterizing the 340 vault tank 1. The objective of the sampling and characterization is to determine if the tank is homogeneous when agitated and which sampling method provides the most representative sample. A secondary objective is to collect and characterize solid samples.
Date:
August 7, 1996
Creator:
Olander, A.R., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
340 waste handling facility deactivation plan
This document provides an overview of both the present status of the 340 Complex (within Hanford`s 300 Area), and of tasks associated with the deactivation of those segments dealing with radioactive, mixed liquid waste receipt, storage, and shipping.The plan also outlines actions needed to de-couple portions of the 340 Complex that will remain in service, including a replacement facility for required functions now fulfilled by systems proposed for deactivation. Task descriptions are presented, along with a detailed schedule for fiscal years 1997 through 2001, a companion preliminary budget (focused more on the near term), and a list of key assumptions.
Date:
August 1, 1996
Creator:
Stordeur, R.T. & Berneski, L.D., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 25, No. 34, Ed. 1 Thursday, August 1, 1996
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
August 1, 1996
Creator:
Slayton, Marni
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 26, No. 1, Ed. 1 Friday, August 30, 1996
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
August 30, 1996
Creator:
Slayton, Marni
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1995 Toxic chemical release inventory: Emergency Planning and Community Right-to-Know Act of 1986, Section 313
Section 313 of the Emergency Planning and Community Right-To-Know Act (EPCRA) requires the annual submittal of toxic chemical release information to the U.S. Environmental Protection Agency.Executive Order 12856, `Federal Compliance With Right-to-Know Laws and Pollution Prevention Requirements` extends the requirements of EPCRA to all Federal agencies. The following document is the August 1996 submittal of the Hanford Site Toxic Chemical Release Inventory report. Included is a Form R for ethylene glycol, the sole chemical used in excess of the established regulatory thresholds at the Hanford Site by the U.S. Department of Energy, Richland Operations Office and its contractors during Calendar Year 1995.
Date:
August 1, 1996
Creator:
Mincey, S.L.
Object Type:
Report
System:
The UNT Digital Library
Acceptance of 241-AW Tank inlet air control stations for beneficial use
This document provides reference to the Acceptance for Beneficial Use (ABU) documentation and effects turnover of the AW tank inlet air control stations from TWRS Equipment Engineering to Evaporator Project.
Date:
August 26, 1996
Creator:
Minteer, D.J., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
Acceptance/operational test report for tank 241-AW-101 camera and camera purge control system
This document contains the results of acceptance/operability testing of the 241-AW-101 Video Camera System and the Video Camera Purge Control System.
Date:
August 14, 1996
Creator:
Harding, R.A., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
Acculturation in African American College Women and Correlates of Eating Disorders
Although eating disorders have been the focus of much research, the inclusion of minority populations has been minimal. A recent review of the literature by Dolan (1991) has found that eating disorders were most likely to be present in non-White women who were exposed to Western societies and cultures. Thus, the purpose of this study was to examine personality, physical, and cultural correlates of bulimic symptomatology in a sample of African American college women. The Bulimia Test Revised (BULIT-R) was used to assess bulimia symptoms. The African American Acculturation Scale (AAAS), the Beliefs about Attractiveness Scale Revised (BAAR factors 1 and 2), the Rosenberg Self-Esteem Scale (SES), the Centers for Epidemiological Depression Scale (CES-D), Body Parts Satisfaction Scale (BPSS), and body mass were the independent variables hypothesized to predict bulimic symptoms. Hierarchical regression analysis revealed that body mass, depression, and low self-esteem were the best predictors of bulimic symptomatology, together accounting for 38% of the variance. Beliefs about attractiveness and body satisfaction were related to bulimic symptoms but not when considered simultaneously with the other variables. Acculturation was not predictive of bulimic symptoms. 0-ordered correlations revealed that beliefs about attractiveness and body satisfaction were correlated with bulimic symptoms. Acculturation was …
Date:
August 1996
Creator:
Lester, Regan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Action plan for response to excessive temperatures in Hanford site high-heat waste tank 241-C-106
Tank 241-C-106 is a single shell tank at the Hanford Site in south central Washington State, and is the only tank on Hanford`s High-Heat Tank Watch List. This action plan defines possible abnormal conditions (such as ventilation system failure or a leaking tank) that could lead to excessive temperature increases in tank 241-C-106, and documents pre-planned contingency actions would effectively mitigate the consequences of such increased temperatures. Potential structural damage may result from high temperatures caused by inadequate cooling. Tank 241-C-106 contains a significant amount of high-heat radioactive waste, mainly strontium, and requires forced ventilation combined with evaporation for adequate cooling. Forced ventilation at 2,400 ft/min, along with periodic water additions of approximately 6,000 gal/month, is currently maintaining the tank temperature within the required range. This action plan addresses high-heat concerns and corrective measures unique to tank 241-C-106 and to proposed sluicing activities in tank 241-C-106. Other general emergency actions for the 200 Area Tank Farms, such as those forest fires and earthquakes, are described in WHC-CM-4-43, `Emergency Management Procedures` and are not included in this document.
Date:
August 23, 1996
Creator:
Rensink, G.E., Westinghouse Hanford
Object Type:
Report
System:
The UNT Digital Library
Adaption of the edge of chaos in cells and ecosystems
None
Date:
August 1, 1996
Creator:
Kauffman, S.
Object Type:
Report
System:
The UNT Digital Library
Adélaide Labille-Guiard and Elisabeth Vigée-Lebrun: Portraitists in the Age of the French Revolution
This thesis examines the portraiture of Elisabeth Vigée-Lebrun and Adélaide Labille-Guiard within the context of their time. Analysis of specific portraits in American collections is provided, along with an examination of their careers: early education, Academic Royale membership, Salon exhibitions, and the French Revolution. Discussion includes the artists' opposing stylistic heritages, as well as the influences of their patronage, the French art academy and art criticism. This study finds that Salon critics compared their paintings, but not with the intention of creating a bitter personal and professional rivalry between them as presumed by some twentieth-century art historians. This thesis concludes those critics simply addressed their opposing artistic styles and that no such rivalry existed.
Date:
August 1996
Creator:
Carlisle, Tara McDermott
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Adsorption and desorption of sulfur dioxide on novel adsorbents for flue gas desulfurization. Final report, September 1, 1994--February 29, 1996
A sol-gel granulation method was developed to prepare spherical {gamma}-alumina granular supports and supported CuO granular sorbents for flue gas desulfurization. The prepared {gamma}-alumina supported CuO sorbents exhibit desirable pore structure and excellent mechanical properties. The sorbents contain higher loading (30-40 wt. %) of CuO dispersed in the monolayer or sub-monolayer form, giving rise to a larger SO{sub 2} sorption capacity ({gt}20 wt.%) and a faster sorption rate as compared to similar sorbents reported in the literature. With these excellent sulfation and mechanical properties, the sol-gel derived {gamma}-alumina supported CuO granular sorbents offer great potential for use in the dry, regenerative flue gas desulfurization process. Research efforts were also made to prepare DAY zeolite supported sorbents with various CuO contents by the microwave and conventional thermal dispersion methods at different conditions. Monolayer or sub-monolayer coating of Cu(NO{sub 3})sub 2 or CuO was achieved on several DAY supported sorbents by the microwave heating method but not by the conventional thermal dispersion method. The DAY zeolite supported CuO sorbents prepared by the microwave heating method can adsorb up to 15 wt.% of SO{sub 2}. The results obtained have demonstrated the feasibility of effective preparation of zeolite supported CuO sorbents by the microwave …
Date:
August 5, 1996
Creator:
Lin, Y.S. & Deng, S.G.
Object Type:
Report
System:
The UNT Digital Library
Adult Discouragement: Parents of Children with Craniofacial Anomaly
The Discouragement Scale for Adults (DSA) was developed to assess for the Adlerian construct of discouragement in adults age 18 years and over. Data were collected from three samples: norm (n=586), presumed discouraged (n=47), and parents of children with craniofacial anomaly (n=105). Five subscales corresponding to life tasks identified in Adlerian literature as work, love, society, self-significance, and spirituality underlie the 60 item DSA. Item selection was based on ratings by five notable Adlerians and item correlations with scale scores. Gender, age, and ethnicity norms were established for the norm, presumed discouraged, and craniofacial samples. Across three samples, no significant ethnic differences were found. Normative findings indicated females are less discouraged than males on the Total DSA, the society and spirituality subscales. Age findings indicated the 18-34 year old sample is more discouraged than other ages on the Total DSA, the work, society, and spirituality subscales. Presumed discouraged findings indicated females are less discouraged than males on the society subscale. Craniofacial findings indicated females are less discouraged on the society subscale, but more discouraged on the self-significance subscale than males. Age findings indicated the 18-34 year old sample is more discouraged than other ages on the self subscale. Research on …
Date:
August 1996
Creator:
Jones, Melissa Taylor Watson
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Advanced computer techniques for inverse modeling of electric current in cardiac tissue
For many years, ECG`s and vector cardiograms have been the tools of choice for non-invasive diagnosis of cardiac conduction problems, such as found in reentrant tachycardia or Wolff-Parkinson-White (WPW) syndrome. Through skillful analysis of these skin-surface measurements of cardiac generated electric currents, a physician can deduce the general location of heart conduction irregularities. Using a combination of high-fidelity geometry modeling, advanced mathematical algorithms and massively parallel computing, Sandia`s approach would provide much more accurate information and thus allow the physician to pinpoint the source of an arrhythmia or abnormal conduction pathway.
Date:
August 1, 1996
Creator:
Hutchinson, Scott A.; Romero, Louis A. & Diegert, Carl F.
Object Type:
Report
System:
The UNT Digital Library
Advanced direct liquefaction concepts for PETC generic units phase II. Quarterly technical progress report, April--June 1996
A catalyst screening test (CST) was developed to evaluate the activity of various catalyst precursors for their liquefaction activity in a solvent comprising the solids-free components of a recycle solvent generated at Wilsonville, namely a ROSE SR V-130 deashed resid from period A and V-1074 heavy distillate from period B. Since the deashed resid has an elemental composition very nearly the same distillate from period B. Since the deashed resid has an elemental composition very nearly the same as in the solids-free fraction of the recycle solvent, the reactivity of these two resid and dry coal are nearly the same as in Run 263J, the overall composition should approximate the feed stream used in the Wilsonville pilot plant except for the absence of the solids component. Removing the solids from the reaction mixture should simplify the interpretation of the results since normally a considerable amount or recycled catalyst is contained in this fraction.
Date:
August 1, 1996
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced gas turbines: The choice for low-cost, environmentally superior electric power generation
In July 1993, the US Department of Energy (DOE) initiated an ambitious 8-year program to advance state-of-the-art gas turbine technology for land-based electric power generation. The program, known as the Advanced Turbine System (ATS) Program, is a joint government/industry program with the objective to demonstrate advanced industrial and utility gas turbine systems by the year 2000. The goals of the ATS Program are to develop gas turbine systems capable of providing low-cost electric power, while maintaining environmental superiority over competing power generation options. A progress report on the ATS Program pertaining to program status at DOE will be presented and reviewed in this paper. The technical challenges, advanced critical technology requirements, and systems designs meeting the goals of the program will be described and discussed.
Date:
August 1, 1996
Creator:
Zeh, C.M.
Object Type:
Article
System:
The UNT Digital Library
Advanced thermal barrier coating system development: Technical progress report
Objectives are to provide an improved TBC system with increased temperature capability and improved reliability, for the Advanced Turbine Systems program (gas turbine). The base program consists of three phases: Phase I, program planning (complete); Phase II, development; and Phase III (selected specimen-bench test). Work is currently being performed in Phase II.
Date:
August 7, 1996
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library