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3-D field computation: The near-triumph of commerical codes
In recent years, more and more of those who design and analyze magnets and other devices are using commercial codes rather than developing their own. This paper considers the commercial codes and the features available with them. Other recent trends with 3-D field computation include parallel computation and visualization methods such as virtual reality systems.
Date:
July 1995
Creator:
Turner, L. R.
Object Type:
Article
System:
The UNT Digital Library
10 CFR 830.120 Criterion 10, Independent Assessment: We`re here to help you!
Each organization performing activities in the DOE Weapons Complex is required to have an pendent assessment function. This is consistent from DOE Order 5700.6C, Quality Assurance to 10 CFR 830-120, sometimes referred to as the Price-Anderson rule. DOE Order 5700.6C, Criterion 10 Independent Assessment requires, `` Planned and periodic independent assessments shall be conducted to measure item quality and process effectiveness and to promote improvement. The organization performing independent assessments shall have sufficient authority and freedom from the line organization to carry out its responsibilities. Persons conducting independent assessments shall be technically qualified and knowledgeable in the areas assessed.`` 10 CFR 830.120, (c) Quality assurance criteria -- (3) Assessment -- (ii) Independent Assessment requires,``Independent assessments shall be planned and conducted to measure item and service quality, to measure the adequacy of work performance, and to promote improvement. The group performing independent assessments shall have sufficient authority and freedom from the line to carry out its responsibilities. Persons conducting independent assessments shall be technically qualified and knowledgeable in the areas assessed.``
Date:
July 1, 1995
Creator:
Farrell, R.E.
Object Type:
Article
System:
The UNT Digital Library
A 30-T pulsed magnet suitable for neutron scattering experiments
We describe a conceptual design for a 30-T vertical-field split-pair magnet suitable for neutron scattering studies. While the magnet is primarily intended for diffraction and spectroscopic studies using a pulsed neutron source, it might also have application for relaxational studies,at steady-state sources. The magnet will have a 5-cm bore for sample environment equipment, a 1-cm gap for the neutrons to illuminate the sample and through which to observe the scattering. It will run with a repetition frequency of 2 Hz, and a pulse length of 3 ms. We discuss scientific and engineering considerations that led to this specification and describe the designs of both magnet and power supply.
Date:
July 1, 1995
Creator:
Robinson, R. A.; Boenig, H. J.; Eyssa, Y. M. & Schneider-Muntau, H. J.
Object Type:
Article
System:
The UNT Digital Library
222-S Laboratory Quality Assurance Plan. Revision 1
This Quality Assurance Plan provides,quality assurance (QA) guidance, regulatory QA requirements (e.g., 10 CFR 830.120), and quality control (QC) specifications for analytical service. This document follows the U.S Department of Energy (DOE) issued Hanford Analytical Services Quality Assurance Plan (HASQAP). In addition, this document meets the objectives of the Quality Assurance Program provided in the WHC-CM-4-2, Section 2.1. Quality assurance elements required in the Guidelines and Specifications for Preparing Quality Assurance Program Plans (QAMS-004) and Interim Guidelines and Specifications for Preparing Quality Assurance Project Plans (QAMS-005) from the US Environmental Protection Agency (EPA) are covered throughout this document. A quality assurance index is provided in the Appendix A. This document also provides and/or identifies the procedural information that governs laboratory operations. The personnel of the 222-S Laboratory and the Standards Laboratory including managers, analysts, QA/QC staff, auditors, and support staff shall use this document as guidance and instructions for their operational and quality assurance activities. Other organizations that conduct activities described in this document for the 222-S Laboratory shall follow this QA/QC document.
Date:
July 31, 1995
Creator:
Meznarich, H.K.
Object Type:
Report
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 23, No. 32, Ed. 1 Thursday, July 13, 1995
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 13, 1995
Creator:
Patton, Eric
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 24, No. 33, Ed. 1 Thursday, July 20, 1995
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 20, 1995
Creator:
Patton, Eric
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 24, No. 34, Ed. 1 Thursday, July 27, 1995
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 27, 1995
Creator:
Patton, Eric
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1994 Site environmental report
The Fernald site is a Department of Energy (DOE)-owned facility that produced high-quality uranium metals for military defense for nearly 40 years. DOE suspended production at the site in 1989 and formally ended production in 1991. Although production activities have ceased, the site continues to examine the air and liquid pathways as possible routes through which pollutants from past operations and current remedial activities may leave the site. The Site Environmental Report (SER) is prepared annually in accordance with DOE Order 5400.1, General Environmental Protection Program. This 1994 SER provides the general public as well as scientists and engineers with the results from the site`s ongoing Environmental Monitoring Program. Also included in this report is information concerning the site`s progress toward achieving full compliance with requirements set forth by DOE, U.S. Environmental Protection Agency (USEPA), and Ohio EPA (OEPA). For some readers, the highlights provided in this Executive Summary may provide sufficient information. Many readers, however, may wish to read more detailed descriptions of the information than those which are presented here. All information presented in this summary is discussed more fully in the main body of this report.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
1995 Department of Energy Records Management Conference
The Department of Energy (DOE) Records Management Group (RMG) provides a forum for DOE and its contractor personnel to review and discuss subjects, issues, and concerns of common interest. This forum will include the exchange of information, and interpretation of requirements, and a dialog to aid in cost-effective management of the DOE Records Management program. Issues addressed by the RMG may result in recommendations for DOE-wide initiatives. Proposed DOE-wide initiatives shall be, provided in writing by the RMG Steering Committee to the DOE Records Management Committee and to DOE`s Office of ERM Policy, Records, and Reports Management for appropriate action. The membership of the RMG is composed of personnel engaged in Records Management from DOE Headquarters, Field sites, contractors, and other organizations, as appropriate. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
1995 International Sherwood Fusion Theory Conference
This book is a guide to the 1995 International Sherwood Fusion Theory Conference. It consists largely of abstracts of the oral and poster presentations that were to be made, and gives some general information about the conference and its schedule.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
1995 solid waste 30-year container volume summary
This report describes a 30-year forecast of the solid waste volumes by container category. The volumes described are low-level mixed waste (LLMW) and transuranic/transuranic mixed (TRU-TRUM) waste. These volumes and their associated container categories will be generated or received at the US Department of Energy Hanford Site for storage, treatment, and disposal at Westinghouse Hanford Company`s Solid Waste Operations Complex (SWOC) during a 30-year period from FY 1995 through FY 2024. The data presented in this report establish a baseline for solid waste management both in the present and future. With knowledge of the volumes by container type, decisions on the facility handling and storage requirements can be adequately made. It is recognized that the forecast estimates will vary as facility planning and missions continue to change and become better defined; however, the data presented in this report still provide useful insight into Hanford`s future solid waste management requirements.
Date:
July 1, 1995
Creator:
Templeton, K.J.; DeForest, T.J. & Patridge, M.D.
Object Type:
Report
System:
The UNT Digital Library
[1995 TAEA Conference Proposal]
A filled and informative TAEA Conference Proposal form from 1995, detailing the presenter's insights and contributions to the conference. This document provides a snapshot of the proposed presentation, the presenter's background, and key details shaping the educational discourse at the Texas Art Education Association conference in 1995.
Date:
July 7, 1995
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[7th Annual Symphony in Black, PSA Radio Spot]
Audio cassette from The Black Academy of Arts and Letters recorded for a radio spot on the 7th annual Symphony in Black and gala event. The tape details the event to feature the Dallas Symphony orchestra along with a guest conductor to feature music by black composers.
Date:
July 19, 1995
Creator:
unknown
Object Type:
Sound
System:
The UNT Digital Library
7th BOC Priestley Conference. Final technical report, May 1, 1994--April 30, 1995
The 1994 BOC Priestly Conference was held at Bucknell University in Lewisburg, PA, from June 24 through June 27, 1994. This conference, managed by the American Chemical Society (ACS), was a joint celebration with the Royal Society of Chemistry (RSC) commemorating Joseph Priestley`s arrival in the US and his discovery of oxygen. There were 120 attendees. The basic theme of the conference was Oxidants and Oxidation in the Earth`s Atmosphere, with a keynote lecture on the history of ozone. A distinguished group of US and international atmospheric chemists addressed the issues dominating current research and policy agendas. Topics crucial to the atmospheric chemistry of global change and local and regional air pollution were discussed. The program for the conference included four technical sessions on the following topics: Oxidative fate of atmospheric pollutants; Photochemical smog and ozone; Stratospheric ozone; and, Global tropospheric ozone.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Above and beyond basic public participation
This paper evolved out of a discussion about public participation as it is currently being brought to the fore-front of clean-up activities at hazardous waste sites. There exists much official and unofficial documentation pertaining to the need for public involvement. The purposes for public involvement efforts in Environmental Restoration are: to enable substantive input to the clean-up process; methods for establishing formal, and now informal, mechanisms for public input and awareness of on-going facility activities; and the opening of better channels for communication and conflict resolution between the public and the facility. This presentation will briefly outline the regulatory approach for public outreach because many of these terms are used with such frequency, their meanings tend to get forgotten or misconstrued. Then, the authors will critique the most common methods for conducting public involvement as attempted through advisory boards and public meetings. For illustrative purposes, they will be referring to the site they are most familiar with, which is Los Alamos National Laboratory (LANL).
Date:
July 1, 1995
Creator:
Mathai, L. P.; Lefkoff, M. S. & Kelly, E. J.
Object Type:
Article
System:
The UNT Digital Library
Absence of second stability in ATF
Ideal Mercier and ballooning modes for three-dimensional (3-D) equilibria of the Advanced Toroidal Facility (ATF) are studied in detail. These modes are found to introduce instability limits at modest beta values for pressure profiles for which previous results, based on a two-dimensional (2-D) equilibrium approximation, predicted the existence of a second stability region. This absence of second stability is in agreement with an analysis by Cooper et al. who used a simplified model for the ATF plasma boundary. The increased instability is found to result from the 3-D feature of the Pfirsch-Schlueter current. Furthermore, a strong quadrupole field is found to decrease the beta limit of these modes, contrary to the results obtained using the 2-D equilibria. Although direct comparison with measured beta values is not possible owing to the absence of profile data for ATF plasmas, pressure profiles used previously to model ATF data as well as in the 2-D analysis are used to obtain the results. The details of the pressure profiles and the plasma configurations strongly influence the stability limits on average beta which remains below 3%.
Date:
July 1, 1995
Creator:
Dominguez, N. & Lynch, V.E.
Object Type:
Report
System:
The UNT Digital Library
Accelerated degradation studies of MEH-PPV
MEH-PPV, which normally has a reddish color, is well known to show photobleaching problems. The photobleaching can be greatly accelerated by exposure to laser light while in air. For example, shining 457 mn light of relatively low intensity (0.06 W/cm{sup 2}) on the MEH-PPV causes the photoluminescence to decrease by a factor of two within a few seconds of exposure, and to show a nearly complete bleaching of the material within 30 minutes. The degradation rate is strongly influenced by laser power, sample thickness, oxygen exposure during preparation and spinning, as well as the oxygen environment during the measurement. The photobleach is indicative of one class of degradation mechanisms limiting the usefulness of PPV based polymers in electroluminescent devices. MEH-PPV which was spin coated in a nitrogen environment and measured in vacuum showed no measurable photo-chemical degradation for measuring times of up to several hours. A dramatic decrease in PL intensity was observed, however, in the presence of oxygen, as well as in samples spin coated in air, but measured in vacuum. We present data on the PL of MEH-PPV, as a function of oxygen concentration.
Date:
July 1, 1995
Creator:
Radousky, H. B.; Madden, A. D.; Pakbaz, K.; Hagler, T. W.; Lee, H. W. H.; Lorenzana, H. E. et al.
Object Type:
Article
System:
The UNT Digital Library
Acceptance criteria for ultrasonic flaw indications in the inner liner of double-shell waste storage tanks
Radioactive defense waste, resulting from the chemical processing of spent nuclear fuel, has been stored in double-shell tanks (DSTS) at the Hanford Site since 1970. As part of the program to assure that the DSTs maintain their structural integrity, an inspection plan is being developed and implemented. This report provides recommendations and technical bases for acceptance criteria for flaw indications detected during ultrasonic inspection of inner liners of the DSTS. The types of indications addressed are crack-like flaws, wall thinning, and pitting. In establishing acceptable flaw sizes, the evaluations have taken into consideration the potential for crack growth by the mechanism of stress corrosion cracking. Consideration was given to technical approaches used in ASME Codes, for reactor tanks at the Department of Energy Savannah River facilities, and in recommendations by the Tank Structural Integrity Panel. The goal was to ensure that indications discovered during inspections are not large enough to ever cause a leak or rupture of the tank inner liner. The acceptance criteria are intended to be simple to apply using a set of tables giving acceptable flaw sizes. These tables are sufficiently conservative to be applicable to all double-shell tanks. In those cases that a flaw exceeds the …
Date:
July 1, 1995
Creator:
Simonen, F.A.; Graves, R.E. & Johnson, K.I.
Object Type:
Report
System:
The UNT Digital Library
Accident reconstruction using process trees
A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery. The overall project scope of the engineering development project is to conceptually develop a commercial flowsheet to maximize pyritic sulfur reduction at practical energy recovery values. This is being accomplished by utilizing the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal …
Date:
July 1, 1995
Creator:
Eisenhawer, S.W. & Bott, T.F.
Object Type:
Article
System:
The UNT Digital Library
Accident selection methodology for TA-55 FSAR
In the past, the selection of representative accidents for refined analysis from the numerous scenarios identified in hazards analyses (HAs) has involved significant judgment and has been difficult to defend. As part of upgrading the Final Safety Analysis Report (FSAR) for the TA-55 plutonium facility at the Los Alamos National Laboratory, an accident selection process was developed that is mostly mechanical and reproducible in nature and fulfills the requirements of the Department of Energy (DOE) Standard 3009 and DOE Order 5480.23. Among the objectives specified by this guidance are the requirements that accident screening (1) consider accidents during normal and abnormal operating conditions, (2) consider both design basis and beyond design basis accidents, (3) characterize accidents by category (operational, natural phenomena, etc.) and by type (spill, explosion, fire, etc.), and (4) identify accidents that bound all foreseeable accident types. The accident selection process described here in the context of the TA-55 FSAR is applicable to all types of DOE facilities.
Date:
July 1, 1995
Creator:
Letellier, B. C.; Pan, P. Y. & Sasser, M. K.
Object Type:
Article
System:
The UNT Digital Library
Acoustic techniques in nuclear safeguards
Acoustic techniques can be employed to address many questions relevant to current nuclear technology needs. These include establishing and monitoring intrinsic tags and seals, locating holdup in areas where conventional radiation-based measurements have limited capability, process monitoring, monitoring containers for corrosion or changes in pressure, and facility design verification. These acoustics applications are in their infancy with respect to safeguards and nuclear material management, but proof-of-principle has been demonstrated in many of the areas listed.
Date:
July 1, 1995
Creator:
Olinger, C. T. & Sinha, D. N.
Object Type:
Article
System:
The UNT Digital Library
Active control of bending vibrations in thick bars using PZT stack actuators
An experimental investigation into active control of bending vibrations in thick bar and plate-like structural elements is described. This work is motivated by vibration problems in machine tools and photolithography machines that require greater control authority than available from conventional surface mounted PZT patches or PVDF films. Focus of this experiment is a cantilevered circular steel bar in which PZT stacks are mounted in cutouts near the bar root. Axially aligned and offset from the neutral axis, these actuators control the bending vibrations by generating moments in the bar through their compressive loads. A Positive Feedback control law is used to significantly augment the damping in the first bending mode. Implications of the experimental results for machine tool stability enhancement are discussed.
Date:
July 1, 1995
Creator:
Redmond, J.; Parker, G.; Barney, P. & Rodeman, R.
Object Type:
Article
System:
The UNT Digital Library
Active plasma source formation in the MAP diode
The Ion Beam Surface Treatment (IBEST) program is exploring using ion beams to treat the surface of a wide variety of materials. These experiments have shown that improved corrosion resistance, surface hardening, grain size modification, polishing and surface cleaning can all be achieved using a pulsed 0.4-0.8 MeV ion beam delivering 1-10 J/cm{sup 2}. The Magnetically-confined Anode Plasma (MAP) diode, developed at Cornell University, produces an active plasma which can be used to treat the surfaces of materials. The diode consists of a fast puff valve as the source of gas to produce the desired ions and two capacitively driven B-fields. A slow magnetic field is used for electron insulation and a fast field is used to both ionize the puffed gas and to position the plasma in the proper spatial location in the anode prior to the accelerator pulse. The relative timing between subsystems is an important factor in the effective production of the active plasma source for the MAP diode system. The MAP diode has been characterized using a Langmuir probe to measure plasma arrival times at the anode annulus for hydrogen gas. This data was then used to determine the optimum operating point for the MAP diode …
Date:
July 1, 1995
Creator:
Lamppa, K.P.; Stinnett, R.W. & Renk, T.J.
Object Type:
Article
System:
The UNT Digital Library
Active structural control by fuzzy logic rules: An introduction
An introduction to fuzzy logic control applied to the active structural control to reduce the dynamic response of structures subjected to earthquake excitations is presented. It is hoped that this presentation will increase the attractiveness of the methodology to structural engineers in research as well as in practice. The basic concept of the fuzzy logic control are explained by examples and by diagrams with a minimum of mathematics. The effectiveness and simplicity of the fuzzy logic control is demonstrated by a numerical example in which the response of a single-degree-of-freedom system subjected to earthquake excitations is controlled by making use of the fuzzy logic controller. In the example, the fuzzy rules are first learned from the results obtained from linear control theory; then they are fine tuned to improve their performance. It is shown that the performance of fuzzy logic control surpasses that of the linear control theory. The paper shows that linear control theory provides experience for fuzzy logic control, and fuzzy logic control can provide better performance; therefore, two controllers complement each other.
Date:
July 1, 1995
Creator:
Tang, Y.
Object Type:
Report
System:
The UNT Digital Library