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An Integrated Database to Support Research on Escherichia Coli

Description: We have used logic programming to design and implement a prototype database of genomic information for the model bacterial organism Escherichia coli. This report presents the fundamental database primitives that can be used to access and manipulate data relating to the E. coli genome. The present system, combined with a tutorial manual, provides immediate access to the integrated knowledge base for E. coli chromosome data. It also serves as the foundation for development of more user-friendly i… more
Date: January 1992
Creator: Baehr, Alezandra; Dunham, George; Ginsburg, Adam; Hagstrom, Ray; Joerg, David; Kazic, Toni et al.
Partner: UNT Libraries Government Documents Department
open access

Detection and Location of Leaks in District Heating Steam Systems: Survey and Review of Current Technology and Practices

Description: This report presents the results of a survey undertaken to identify and characterize current practices for detecting and locating leaks in district heating systems, particular steam systems. Currently used technology and practices are reviewed. In addition, the survey was used to gather information that may be important for the application of acoustic leak detection. A few examples of attempts to locate leaks in steam and hot water pipes by correlation of acoustic signals generated by the leaks… more
Date: March 1992
Creator: Kupperman, D. S.; Raptis, A. C. & Lanham, R. L.
Partner: UNT Libraries Government Documents Department
open access

The Monitoring and Control of TRUEX Processes

Description: The Generic TRUEX Model (GTM) was used to design a flowsheet for the TRUEX solvent extraction process that would be used to determine its instrumentation and control requirements. Sensitivity analyses of the key process variables, namely, the aqueous and organic flow rates, feed compositions, and the number of contactor stages, were carried out to assess their impact on the operation of the TRUEX process. Results of these analyses provide a basis for the selection of an instrument and control s… more
Date: March 1992
Creator: Regalbuto, M. C.; Misra, B.; Chamberlain, D. B.; Leonard, R. A. & Vandegrift, G. F.
Partner: UNT Libraries Government Documents Department
open access

A Formal Model for Verification of Abstract Properties

Description: This report is given a specification "s" that states the requirements of a problem in terms of data dependencies. There are also given some assumptions about the input domain and to define a formal model that can be used to verify that a program written according to the specification "s" does indeed have the data dependencies specified by "s."
Date: April 1992
Creator: Winter, Victor L.; Chisholm, G. H.; Smith, Brian Thomas & Wojcik, Anthony J.
Partner: UNT Libraries Government Documents Department
open access

GenoGraphics for OpenWindows

Description: GenoGraphics is a generic utility for constructing and querying one-dimensional linear plots. The outgrowth of a request from Dr. Cassandra Smith for a tool to facilitate her genome mapping research. GenoGraphics development has benefited from a continued collaboration with her. Written in Sun Microsystem's OpenWindows environment and the BTOL toolkit developed at Argonne National Laboratory. GenoGraphics provides an interactive, intuitive, graphical interface. Its features include: viewing mul… more
Date: April 1992
Creator: Hagstrom, Ray; Michaels, George S.; Taylor, Ronald; Price, Morgan; Overbeek, Ross; Zawada, Dave et al.
Partner: UNT Libraries Government Documents Department
open access

Boiling Heat Transfer of Refrigerant R-113 in a Small-Diameter, Horizontal Tube

Description: Results of a study of boiling heat transfer from refrigerant R-113 in a small-diameter (2.92-mm) tube are reported. Local heat transfer coefficients over a range of heat fluxes, mass fluxes, and equilibrium mass qualities were measured. The measured coefficients were used to evaluate eight different heat transfer correlations, some of which have been developed specifically for refrigerants. High heat fluxes and low flow rates are inherent in small channels, and this combination results in high … more
Date: January 1992
Creator: Wambsganss, M. W.; France, D. M.; Jendrzejczyk, J. A. & Tran, T. N.
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 fluid-elastic 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 periodi… more
Date: February 1992
Creator: Cai, Y. & Chen, Shoei-Sheng
Partner: UNT Libraries Government Documents Department
open access

Vehicle/Guideway Interaction in Maglev Systems

Description: Dynamic interactions between the vehicle and guideway in a high-speed ground transportation system based on magnetically levitated (maglev) vehicles were studied, with an emphasis on the effects of vehicle and guideway parameters. Two dynamic models for the vehicle are presented. In one model, the vehicle is considered to be a moving force traveling at various speeds on a simply supported single- or two-span beam. In the second model, the vehicle is considered to be one-dimensional and has two … more
Date: March 1992
Creator: Cai, Y.; Chen, Shoei-Sheng & Rote, D. M.
Partner: UNT Libraries Government Documents Department
open access

7-GeV Advanced Photon Source Instrumentation Initiative. Conceptual Design Report

Description: In this APS Instrumentation Initiative, 2.5-m-long and 5-m-long insertion-device x-ray sources will be built on 9 straight sections of the APS storage ring, and an additional 9 bending-magnet sources will also be put in use. The front ends for these 18 x-ray sources will be built to contain and safeguard access to these bright x-ray beams. In addition, funds will be provided to build state-of-the-art insertion-device beamlines to meet scientific and technological research demands well into the … more
Date: October 1992
Creator: Argonne National Laboratory
Partner: UNT Libraries Government Documents Department
open access

Dynamic Stability of Maglev Systems

Description: Because dynamic instability is not acceptable for any commercial maglev systems, it is important to consider this phenomenon in the development of all maglev systems. This study considers the stability of maglev systems based on experimental data, scoping calculations, and simple mathematical models. Divergence and flutter are obtained for coupled vibration of a three-degree-of-freedom maglev vehicle on a guideway consisting of double L-shaped aluminum segments attached to a rotating wheel. The… more
Date: April 1992
Creator: Cai, Y.; Chen, Shoei-Sheng; Mulcahy, T. M. & Rote, D. M.
Partner: UNT Libraries Government Documents Department
open access

Is There a Large Risk of Radiation? a Critical Review of Pessimistic Claims

Description: A number of situations where it has been claimed that moderate radiation doses cause leukemia or other cancers are carefully reviewed. We look at cases in the United States, Great Britain, and the Soviet Union. Usually it can be demonstrated that there is an alternative, more probable, explanation for the effect seen. In several cases the authors of the papers have fallen into statistical traps. The most frequent is a posteriori selection of cohort boundaries in both space and time: a trap illu… more
Date: July 1992
Creator: Shihab-Eldin, Adnan; Shlyakhter, Alexander & Wilson, Richard
Partner: UNT Libraries Government Documents Department
open access

The Use of a Centrifugal Contactor for Component Concentration by Solvent Extraction

Description: Theoretical and experimental work was undertaken to explore the use of the Argonne design centrifugal contactor as a concentrating device for metal ions in solutions such as transuranic-containing waste streams and contaminated groundwater. First, the theoretical basis for operating the contactor as a concentrator was developed. Then, the ability of the contactor to act as a concentrating device was experimentally demonstrated with neodymium over a wide range of organic-to-aqueous (O/A) flow ra… more
Date: July 1992
Creator: Leonard, R. A.; Wygmans, D. G.; McElwee, M. J.; Wasserman, M. O. & Vandegrift, G. F.
Partner: UNT Libraries Government Documents Department
open access

Stress Corrosion Cracking of Candidate Waste Container Materials: Final Report

Description: Six alloys have been selected as candidate container materials for the storage of high-level nuclear waste at the proposed Yucca mountain site in Nevada. These materials are Type 304L stainless steel (SS). Type 316L SS, Incoloy 825, phosphorus-deoxidized Cu, Cu-30%Ni, and Cu-7%Al. The present program has been initiated to determine whether any of these materials can survive for 300 years in the site environment without developing through-wall stress corrosion cracks. and to assess the relative … more
Date: June 1992
Creator: Park, J. Y.; Malya, P. S.; Soppet, W. K.; Diercks, D. R.; Shack, W. J. & Kassner, T. F.
Partner: UNT Libraries Government Documents Department
open access

Reformers for the Production of Hydrogen from Methanol and Alternative Fuels for Fuel Cell Powered Vehicles

Description: The objective of this study was (i) to assess the present state of technology of reformers that convert methanol (or other alternative fuels) to a hydrogen-rich gas mixture for use in a fuel cell, and (ii) to identify the R & D needs for developing reformers for transportation applications. Steam reforming and partial oxidation are the two basic types of fuel reforming processes. The former is endothermic while the latter is exothermic. Reformers are therefore typically designed as heat exchang… more
Date: August 1992
Creator: Kumar, R.; Ahmed, S.; Krumpelt, Michael & Myles, K. M.
Partner: UNT Libraries Government Documents Department
open access

COMMIX-1AR/P. a Three-Dimensional Transient Single-Phase Computer Program for Thermal Hydraulic Analysis of Single and Multicomponent Systems, Volume 2: User's Guide

Description: The COMMIX-1AR/P computer code is designed for analyzing the steady-state and transient aspects of single-phase fluid flow and heat transfer in three spatial dimensions. This version is an extension of the modeling in COMMIX-1A to include multiple fluids in physically separate regions of the computational domain, modeling descriptions for pumps, radiation heat transfer between surfaces of the solids which are embedded in or surround the fluid, a k-(epsilon) model for fluid turbulence, and impro… more
Date: September 1992
Creator: Garner, P. L.; Blomquist, R. N. & Gelbard, Ely M.
Partner: UNT Libraries Government Documents Department
open access

COMMIX-1AR/P. a Three-Dimensional Transient Single-Phase Computer Program for Thermal Hydraulic Analysis of Single and Multicomponent Systems, Volume 3: Programmer's Guide

Description: The COMMIX-LAR/P computer program is designed for analyzing the steady-state and transient aspects of single-phase fluid flow and heat transfer in three spatial dimensions. This version is an extension of the modeling in COMMIX-lA to include multiple fluids in physically separate regions of the computational domain, modeling descriptions for pumps, radiation heat transfer between surfaces of the solids which are embedded in or surround the fluid, a keg model for fluid turbulence, and improved n… more
Date: September 1992
Creator: Garner, P. L.; Blomquist, R. N. & Gelbard, Ely M.
Partner: UNT Libraries Government Documents Department
open access

Feasibility of MHD Submarine Propulsion

Description: This report describes the work performed during Phase 1 and Phase 2 of the collaborative research program established between Argonne National Laboratory (ANL) and Newport News Shipbuilding and Dry Dock Company (NNS). Phase I of the program focused on the development of computer models for Magnetohydrodynamic (MHD) propulsion. Phase 2 focused on the experimental validation of the thruster performance models and the identification, through testing, of any phenomena which may impact the attractiv… more
Date: September 1992
Creator: Doss, Ezzat D. & Sikes, W. Christopher
Partner: UNT Libraries Government Documents Department
open access

Research in Mathematics and Computer Science: March 1, 1991 - September 30, 1992

Description: This report discusses the following topics in mathematics and computer science at Argonne National Laboratory: Harnessing the Power; Modeling Piezoelectric Crystals; A Two-Way Street; The Challenge Is On; A True Molecular Engineering Capability; CHAMMPions Attack Climate Issues; Studying Vortex Dynamics; Studying Vortex Structure; Providing Reliable and Fast Derivatives; Automating Reasoning for Scientific Problem Solving; Optimization and Mathematical Programming; Scalable Algorithms for Linea… more
Date: October 1992
Creator: Pieper, Gail W.
Partner: UNT Libraries Government Documents Department
open access

Argonne National Laboratory-East Site Environmental Report for Calendar Year 1991

Description: This report discusses the results of the environmental protection program at Argonne National Laboratory-East (ANL) for 1991. To evaluate the effects of ANL operations on the environment, samples of environmental media collected on the site, at the site boundary, and off the ANL site were analyzed and compared to applicable guidelines and standards. A variety of radionuclides was measured in air, surface water, groundwater, soil, grass, and bottom sediment samples.
Date: May 1992
Creator: Golchert, N. W.; Duffy, T. L. & Moos, L. P.
Partner: UNT Libraries Government Documents Department
open access

Practical Superconductor Development for Electrical Power Applications, Annual Report: 1992

Description: Annual report for the superconductor program at Argonne National Laboratory discussing the group's activities and research. This report describes the technical progress of research and development efforts aimed at producing superconducting components that are based on the Y-Ba-Cu, Bi-Sr-Ca-Cu, Bi-Pb-Sr-Ca-Cu, and (Tl,Pb)-(Ba,Sr)-Ca-Cu oxide systems including: synthesis and heat treatment of high-Ta superconductors, formation of monolithic and composite wires and tapes, superconductor/metal con… more
Date: October 1992
Creator: Argonne National Laboratory. Materials and Components Technology Division.
Partner: UNT Libraries Government Documents Department
open access

ANL Technical Support Program for DOE Environmental Restoration and Waste Management Annual Report October 1990 - September 1991

Description: A program has been established for DOE Environmental Restoration and Waste Management (EM) to evaluate factors that are likely to affect waste glass reaction during repository disposal, with emphasis on an unsaturated environment typical of what may be expected for the proposed Yucca Mountain repository site.
Date: March 1992
Creator: Bates, John K.
Partner: UNT Libraries Government Documents Department
open access

Actinide Recovery Using Aqueous Biphasic Extraction: Initial Developmental Studies

Description: Aqueous biphasic extraction systems are being developed to treat radioactive wastes. The separation technique involves the selective partitioning of either solutes or colloid-size particles between two scible aqueous phases. Wet grinding of plutonium residues to an average particle size of one micron will be used to liberate the plutonium from the bulk of the particle matrix. The goal is to produce a plutonium concentrate that will integrate with existing and developing chemical recovery proces… more
Date: August 1992
Creator: Chaiko, David J.; Mensah-Biney, R.; Mertz, C. J. & Rollins, A. N.
Partner: UNT Libraries Government Documents Department
open access

A Vibration Model for Centrifugal Contactors

Description: Using the transfer matrix method, we created the Excel worksheet "Beam" for analyzing vibrations in centrifugal contactors. With this worksheet, a user can calculate the first natural frequency of the motor/rotor system for a centrifugal contactor. We determined a typical value for the bearing stiffness (k(sub B)) of a motor after measuring the k(sub B) value for three different motors. The k(sub B) value is an important parameter in this model, but it is not normally available for motors. The … more
Date: November 1992
Creator: Leonard, R. A.; Wasserman, M. O. & Wygmans, D. G.
Partner: UNT Libraries Government Documents Department
open access

Dynamics and Controls in Maglev Systems

Description: The dynamic response of magnetically levitated (maglev) ground transportation systems has important consequences for safety and ride quality, guideway design, and system costs. Ride quality is determined by vehicle response and by environmental factors such as humidity and noise. The dynamic response of the vehicles is the key element in determining ride quality, and vehicle stability is an important safety-related element. To design a proper guideway that provides acceptable ride quality in th… more
Date: September 1992
Creator: Cai, Y.; Chen, Shoei-Sheng & Rote, D. M.
Partner: UNT Libraries Government Documents Department
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