1,099 Matching Results

Search Results

Results: 1 - 24 next
open access

Safety rod latch inspection

Description: During an attempt to raise control rods from the 100 K reactor in December, one rod could not be withdrawn. Subsequent investigation revealed that a small button'' in the latch mechanism had broken off of the lock plunger'' and was wedged in a position that prevented rod withdrawal. Concern that this failure may have resulted from corrosion or some other metallurgical problem resulted in a request that SRL examine six typical latch mechanisms from the 100 L reactor by use of radiography and met… more
Date: February 1, 1992
Creator: Leader, D.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ceramic microstructures and their elucidation by imaging, diffraction and spectroscopic methods

Description: The development and potential utilization of ceramic materials is dependent on a systematic effort involving processing, characterization and appropriate property measurements. The methods of characterization are numerous and it is important to employ the one that is appropriate to the problem both in terms of its information content and the achievable level of resolution. With the incorporation of fine probe forming capabilities in a transmission electron microscope and the development of rela… more
Date: February 1, 1992
Creator: Kirshnan, K.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Integrated dry NO sub x /SO sub 2 emissions control system

Description: The DOE Cooperative Agreement No. DE-FC22-91PC90550 dated March 11, 1991, Public Service Company of Colorado has prepared the following quarterly report for Phases I, IIA, and IIB of the Integrated Dry NO{sub x}SO{sub 2} Emissions Control System Project. This project includes low NO{sub x} burners with NO{sub x} ports (post firing air injection), humidification and dry sorbent injection.
Date: February 15, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Letter from Marvin E. Edwards to Bill McCarter, February 7, 1992]

Description: Photocopy of a letter from Marvin E. Edwards, General Superintendent, Dallas ISD, to Bill McCarter, co-director for North Texas Institute for Educators on the Visual Arts. Thanking McCarter for his letter of January 10, 1992 requesting the attendance of Janice Wiggins, Visual Arts Specialist for the DISD at the National Art Education Association Conference, which Edwards is pleased to have her participate in the DBAE report. Edwards also is in support of the discipline-based approach to teachin… more
Date: February 7, 1992
Creator: Edwards, Marvin E.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

[RE: NTIEVA Educational Exhibit, Etc., February 19, 1992]

Description: Photocopy of a letter from Nancy Reynolds, Project Coordinator of North Texas Institute for Educators on the Visual Arts, to Denton and Pilot Point Art Specialists. Reminding them of the meeting at the Multicultural Seminar at the Dallas Museum of Art February 29th, and asks of them to bring their school's work in the NTIEVA Educational Exhibit. If the specialists are unable to make it that day to call the NTIEVA office to make arrangements for them to acquire their work. The rest of the letter… more
Date: February 19, 1992
Creator: Reynolds, Nancy
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

[Letter from Nancy Reynolds to the Denton and Pilot Point Art Specialists, February 19, 1992]

Description: Photocopy of a letter from Nancy Reynolds, project coordinator of North Texas Institute for Educators on the Visual Arts, to Denton and Pilot Point Art Specialists, in regards to NTIEVA's Education Exhibit. Reynolds hopes that everyone will attend the Multicultural Seminar at the Dallas Museum of Art, February 29th. Should they attend they need to bring their school's work for the NTIEVA Exhibit so that Reynolds can collectively put the pieces of artwork together. Reynolds ends the letter by wr… more
Date: February 19, 1992
Creator: Reynolds, Nancy
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

[Letter from Jack Davis and Bill McCarter to Sharon Benge, February 27, 1992]

Description: Photocopy of a letter from Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts, to Sharon Benge, Arts Council of Fort Worth and Tarrant County. Confirming a planned meeting of the Advisory Committee for North Texas Institute for Educators on the Visual Arts on Wednesday, March 4, 1992. The meeting will be held at the Amon Carter Museum in Fort Worth with Jan Muhlert as chair of the Advisory Committee. Davis and McCarter have enclosed an agenda fo… more
Date: February 27, 1992
Creator: Davis, Donald Jack & McCarter, William
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

[Letter from Edith O'Donnell to Jack Davis, February 17, 1992]

Description: Photocopy of a letter from Edith O'Donnell, Young Audiences of Greater Dallas, to Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts. O'Donnell thanks Davis for his interest in the Young Audiences project and for copying video tape material for O'Donnell and her staff. O'Donnell says she was interested in hearing about Davis's experience with fiber optics and distance learning and hopes the Museum will allow the proper wiring to allow them to be on the cutting edg… more
Date: February 17, 1992
Creator: O'Donnell, Edith
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

On-line chemical composition analyzer development

Description: The energy consumed in distillation processes in the United States represents nearly three percent of the total national energy consumption. If effective control of distillation columns can be accomplished, it has been estimated that it would result in a reduction in the national energy consumption of 0.3%. Real-time control based on mixture composition could achieve these savings. However, the major distillation processes represent diverse applications and at present there does not exist a pro… more
Date: February 1, 1992
Creator: Roberts, M.J.; Garrison, A.A.; Muly, E.C. & Moore, C.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Validated heat-transfer and pressure-drop prediction methods based on the discrete element method: Phase 1, Three-dimensiional roughness

Description: A computer program based on the discrete element method has been developed and validated to compute friction factors and Nusselt numbers for fully developed turbulent flow and heat transfer in pipes with three-dimensional roughness elements. Computational results are compared with appropriate cases from heat transfer experiments in the literature. The predictions were in general in very good agreement with the experimental data.
Date: February 1, 1992
Creator: Taylor, R.P. & Hodge, B.K. (Mississippi State Univ., MS (United States). Dept. of Mechanical and Nuclear Engineering)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Analytic Determination of Beta Poloidal and Internal Inductance in an Elongated Tokamak From Magnetic Probe Measurements

Description: Analytic calculations of the magnetic fields available to magnetic diagnostics are performed for tokamaks with circular and elliptical cross sections. The explicit dependence of the magnetic fields on the poloidal beta and internal inductances is sought. For tokamaks with circular cross sections, Shafranov's results are reproduced and extended. To first order in the inverse aspect ratio expansion of the magnetic fields, only a specific combination of beta poloidal and internal inductance is fou… more
Date: February 1, 1992
Creator: Sorci, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The IGAC activity for the development of global emissions inventories: Description and initial results

Description: Modeling assessments of the atmospheric chemistry, air quality and climatic conditions of the past, present and future require as input inventories of emissions of the appropriate chemical species constructed on appropriate spatial and temporal scales. The task of the Global Emissions Inventories Activity (GEIA) of the International Global Atmospheric Chemistry Project (IGAC) is the production of global inventories suitable for a range of research applications. Current GEIA programs are general… more
Date: February 1, 1992
Creator: Benkovitz, C.M. (Brookhaven National Lab., Upton, NY (United States)) & Graedel, T.E. (AT and T Bell Labs., Murray Hill, NJ (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NUCLA Circulating Atmospheric Fluidized Bed Demonstration Project

Description: The objective of this DOE Cooperative Agreement is to conduct a cost-shared clean coal technology project to demonstrate the feasibility of circulating fluidized bed combustion technology and to evaluate economic, environmental, and operational benefits of CFB steam generators on a utility scale. At the conclusion of the Phase 2 program, testing related to satisfying these objectives was completed. Data analysis and reporting are scheduled for completion by October 1991. (VC)
Date: February 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Condensing economizers: Thermal performance and particulate removal efficiencies

Description: Condensing economizers can be used to increase the thermal efficiency of boilers and furnaces. This project has involved a study of these specifically for application to coal-water mixture fuels although the results can be extended to other fuels. experimental studies to evaluate thermal performance and removal of particulates across indirect contract economizers have been performed. The test arrangement incorporates oil firing with the injection of flyash into the flue gas to simulate coal com… more
Date: February 1, 1992
Creator: Butcher, T.A.; Litzke, Wai Lin (Brookhaven National Lab., Upton, NY (United States)) & Park, N. (Stony Brook Scientific, Ltd., Morristown, PA (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Integrated dry NO sub x /SO sub 2 emissions control system

Description: The DOE Cooperative Agreement No. DE-FC22-91PC90550 dated march 11, 1991, Public Service Company of Colorado has prepared the following quarterly report for Phases I, IIA, and IIB of the Integrated Dry No{sub x}/SO{sub 2} Emissions Control System Project. This project includes low NO{sub x} burners with NO{sub x} ports (post firing air injection), humidification and dry sorbent injection.
Date: February 15, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of automated deduction to the search for single axioms for exponent groups

Description: We present new results in axiomatic group theory obtained by using automated deduction programs. The results include single axioms, some with the identity and others without, for groups of exponents 3, 4, 5 and 7, and a general form for single axioms for groups of odd exponent. The results were obtained by using the programs in three separate ways: as a symbolic calculator, to search for proofs,and to search for couterexamples. We also touch on relations between logic programming and automated … more
Date: February 11, 1992
Creator: McCune, W. & Wos, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experimental and theoretical investigation of high gradient acceleration

Description: This report contains a technical progress summary of the research conducted under the auspices of DOE Grant No. DE-FG0291ER-40648. Experimental and Theoretical Investigations of High Gradient Acceleration.'' This grant supports three research tasks: Task A consists of the design and fabrication of a 17GHz of photocathode gun, Task B supports the testing of high gradient acceleration using a 33GHz structure, and Task C comprises theoretical investigations, both in support of the experimental tas… more
Date: February 1, 1992
Creator: Bekefi, G.; Chen, C.; Chen, S.; Danly, B.; Temkin, R.J. & Wurtele, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental monitoring for the DOE coolside and LIMB demonstration extension projects

Description: The purpose of this document is to present environmental monitoring data collected during the US DOE Limestone Injection Multistage Burner (LIMB) Demonstration Project Extension. The objective of the LIMB program is to demonstrate the sulfur dioxide (SO{sub 2}) and nitrogen oxide (NO{sub x}) emission reduction capabilities of the LIMB system. The LIMB system is a retrofit technology to be used for existing coal-fired boilers equipped with electrostatic precipitators. (VC)
Date: February 1, 1992
Creator: White, T.; Contos, L. & Adams, L. (Radian Corp., Research Triangle Park, NC (United States). Progress Center)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Operation and radiation resistance of a FOXFET biasing structure for silicon strip detectors

Description: AC-coupled strip detectors biased with a FOXFET transistor structure have been studied. Measurement results for the basic operational characteristics of the FOXFET are presented together with a brief description of the physics underlying its operation. Radiation effects were studied using photons from a {sup 137}Cs source. Changes in the FOXFET characteristics as a function of radiation dose up to 1 MRad are reported. Results about the effect of radiation on the noise from a FOXFET biased detec… more
Date: February 1, 1992
Creator: Laakso, M. (Fermi National Accelerator Lab., Batavia, IL (United States) Helsinki Univ. (Finland). Dept. of High Energy Physics); Singh, P.; Engels, E. Jr. & Shepard, P. (Pittsburgh Univ., PA (United States). Dept. of Physics and Astronomy)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Savannah River Laboratory monthly report, February 1992

Description: This report is a progress report for the Savannah River Laboratory for the month of February 1992. The progress and activities in six categories were described in the report. The categories are reactor, tritium, separations, environmental, waste management, and general. Each category described numerous and varied activities. Some examples of these activities described are such things as radiation monitoring, maintenance, modifications, and remedial action.
Date: February 1, 1992
Creator: Ferrell, J.M. (comp.) & Ice, L.W. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MHD Integrated Topping Cycle Project

Description: A summary of the work is excerpted here. Final design of an MHD channel for the ITC program POC test has been completed. The channel was designed to be capable of 1.5 MW {sub e} power output and a lifetime of 2000 hours. Emphasis was placed upon durability and reliability. Hence, specific measures were taken to design against channel damage due to electric faults. The life-limiting issues associated with electrochemical corrosion and erosion of gas-side surfaces were addressed by the use of var… more
Date: February 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The RQM triangle: A paradigm for relativistic quantum mechanics

Description: A simple way to relate Lorentz transformations to a finite and discrete model of counter firings is presented. We first abstract from counter firings with finite resolution to rational fraction velocities and a finite step-length. Discrete Lorentz transformations and quantized rotations follow. These are encoded by three integers and a triangle with integer sides: the RQM Triangle. The double slit experiment allows us to observe quantized space steps and measure invariant step lengths for any p… more
Date: February 1, 1992
Creator: Noyes, H. Pierre
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Standardization guide for construction and use of MORT-type analytic trees

Description: Since the introduction of MORT (Management Oversight and Risk Tree) technology as a tool for evaluating the success or failure of safety management systems, there has been a proliferation of analytic trees throughout US Department of Energy (DOE) and its contractor organizations. Standard fault tree'' symbols have generally been used in logic diagram or tree construction, but new or revised symbols have also been adopted by various analysts. Additionally, a variety of numbering systems have bee… more
Date: February 1, 1992
Creator: Buys, J.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chaotic vibrations of nonlinearly supported tubes in crossflow

Description: By means of the unsteady-flow theory and a bilinear mathematical model, a theoretical study is presented for chaotic vibrations associated with the fluidelastic instability of nonlinearly supported tubes in a crossflow. Effective tools, including phase portraits, power spectral density, Poincare maps, Lyapunov exponent, fractal dimension, and bifurcation diagrams, are utilized to distinguish periodic and chaotic motions when the tubes vibrate in the instability region. The results show periodic… more
Date: February 1, 1992
Creator: Cai, Y. & Chen, S.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen