(Contract DGRST-76-7-0117) Avail: NTIS HC A04/MF A01 Several results obtained when a smectic A liquid crystal is subjected to an electric field are reported. The planar to homeotropic transition was characterized (by a capacitive analysis). A threshold voltage was found which depends upon the sample thickness and the temperature. The quasi-homeotropic structure obtained under applied voltage gives rise, by a relaxation process, to a scattering texture which was studied. The structure and the relaxation time depend on (T sub AN -T). The mechanisms involved in the different transitions show a frequency dependence. First results demonstrate two different kinds of mechanism. These are a conduction regime. A critical frequency very close to the charge relaxation frequency was observed. Author (ESA) N79-26994# National Bureau of Standards, Washington, D. C. (PB-293293/7; NBS-SP-400-57: LC-79-600002) Avail: NTIS HC A07/MF A01 CSCL 20L A computer program which calculates the redistribution of impurities in silicon during a single oxidation step is documented. The documentation provides: (1) a physical and mathematical description of the redistribution process; (2) a detailed description of the discretization of the appropriate partial differential equations; and (3) a complete description of the Fortran program for computing the solution. 77 THERMODYNAMICS AND STATISTICAL PHYSICS GRA Includes quantum mechanics; and Bose and Fermi statistics. For related information see also 25 Inorganic and Physical Chemistry and 34 Fluid Mechanics and Heat Transfer. N79-26995 Illinois Univ. at Urbana-Champaign. SOME NON-PERTURBATIVE RESULTS IN RELATIVISTIC Steven Frederick Magruder 1978 111 p The descriptions of two new non-perturbative results in relativistic field theory are presented. A transformation which can be used to relate the strong coupling limit of the (phi 4)3 quantum field theory to the weak coupling limit of the same theory is described. This transformation can be used to show the existence of a phase transition in the above theory as the coupling constant is increased with the mass parameter held fixed. The derivation of the transformation involves Zimmerman normal operator techniques. A variational calculation of the classical interactions of 't Hooft monopoles is also described. These interactions are interesting because 't Hooft monopoles appear as instantons in the Georgi-Glashow theory of weak and electromagnetic interactions. The interactions of the instantons are directly related to the question of confinement of the fermions in this theory. Dissert. Abstr. N79-26996 Illinois Univ. at Urbana-Champaign. A CHEMICAL THEORY FOR THE THERMODYNAMICS OF HIGHLY SOLVATED LIQUID METAL MIXTURES Ph.D. Thesis Robert Bruce Irwin 1978 150 p Avail: Univ. Microfilms Order No. 7913496 Experimental electromotive force studies of the Mg-Sb, Mg-Bi, and Mg-Sb-Sn liquid metal systems were made using EMF concentration cells which utilize porous inert disks to promote equilibrium operation of the cells. The experiments were performed in an effort to locate possible solvents for the reduction of magnesium oxide. The chemical theory model was to describe the interactions among magnesium and the solvents in the liquid phase as well as to predict activity coefficients in a ternary system using binary data. The results, which show good agreement when compared to ternary data were used to optimize a solvent for magnesium oxide reduction. The selection of highly solvated liquid metal systems by observing the characteristics of binary phase diagrams is also discussed. Dissert. Abstr. N79-26997 Colorado School of Mines, Golden. Gholam-Hossein Omid 1978 183 p Avail: Univ. Microfilms Order No. 7912225 Experimental enthalpy measurements were made on a liquid derived from a Western Kentucky coal by the char-oil-energydevelopment process, over the range of 100 to 1500 psia and 122 to 705 F, and also on a distillate derived from this liquid over the range of 119 to 756 F and 60 to 500 psia. The following analyses were made to characterize the coal-liquids: coal-liquids characterization (PERC) (PERC) method, total carbonhydrogen-nitrogen analysis, total sulfur analysis, refractive index, PONA analysis, heteroatomic content, and aromatic content. Enthalpy correlations already developed were used to predict the enthalpies of the coal-liquid samples. The results compared better with experimental enthalpies at lower temperatures (approximately 300 F) than at higher temperatures (approximately 700 F). A factor was incorporated in one of the correlations to correct the presence of the heteroatomic compounds in the samples. With this modification, the predicted enthalpies were within the experimental accuracy. Dissert. Abstr. N79-26998# California Univ., Berkeley. Lawrence Berkeley Lab. THERMODYNAMICS AND MECHANISMS OF SINTERING Joseph A. Pask Oct. 1978 30 p 30 p refs Presented at Intern. Symp. on Factors in Densification and Sintering of Oxide and Non-oxide Ceram., Hakone, Japan, 3 Oct. 1978 (Contract W-7405-eng-48) (LBL-8419; Conf-7810129-1) Avail: NTIS HC A03/MF A01 The factors which play a role in the process of densification of model compact systems consisting of crystalline spheres of uniform size in regular and irregular packing that form grain boundaries at every contact point are presented. The presence of isotropic surface and grain boundary energies is assumed. Although such systems are unrealistic in comparison with normal powder compacts, their potential sintering behavior can be analyzed and provided with a limiting set of behavior conditions which can be looked upon as one boundary condition. A basis for understanding the more complex real powder systems is provided. DOE N79-26999# Ames Lab., Iowa. THERMODYNAMIC PROPERTIES OF URANIUM-MERCURY (IS-T-824) Avail: NTIS HC A04/MF A01 The EMF values in the fuse salt cells of the type U (alpha)/KCI-LICI-BaCl2 eutectic, UCI3/U-Hg alloy, for the different two-phase alloys in the uranium-mercury system were measured and the thermodynamic properties of this system were calculated. These calculated values are in good agreement with values based on mercury vapor pressure measurements made by previous investigators. The inconsistency of the thermodynamic properties with a phase diagram are also confirmed. A tentative phase diagram based on the thermodynamic properties measured in this work was constructed. DOE = are presented, including simultaneous values for enthalpy, specific volume, temperature and electrical resistivity in tabular form as well as numerical fits up to 7500 K. The specific heat for the liquid is C/sub p/ = 5.85+ or -0.30 R and is essentially constant up to 7500 K. The bulk thermal expansion coefficient increases from approximately 7.5 x 10 to the -5 power K/1 at melt to approximately 1.03 x 10 to the -4 power k/1 at 7500 K. The heat of fusion observed is delta h 0.14 + or -0.03 MJ/kg and the melting point slope with pressure is estimated to be dT/sub m//dp 31-10 K/GPa. The estimated critical parameters are T/sub c/ = 9285 K, P/sub c/ = 0.9492 GPa, v/sub c/ = 1.120 x 10 to the -4 power cu m/kg and z/sub c/ = 0.5085. Preliminary results of a new sound velocity technique are discussed for lead. This technique will allow determination of specific heat c/sub v/, isothermal compressibility K/sub T/ and the constant temperature volume derivatives of entropy and internal energy, as well as the Gruneisen parameter gamma/sub G/. = DOE N79-27001# Columbia Univ., New York. Liquid Metals Research Lab. HIGH TEMPERATURE PROPERTIES OF NUCLEAR REACTOR COOLANTS AND THERMODYNAMIC POWER CYCLE WORKING FLUIDS Technical Progress Report, 1 Dec. 1977 - 30 Nov. 1978 Charles F. Bonilla and Gerald P. Holder Sep. 1978 39 prefs (Contract EY-76-S-02-3027) (COO-3027-37) Avail: NTIS HC A03/MF A01 The surface tension of sodium to high temperatures is being studied using an all-molybdenum maximum-bubble-pressure apparatus suitable to some 1900 K. This property bears on boiling, condensing and two-phase flow phenomena, also related to LMFBR analysis. This same apparatus will be useful with lithium, of interest in fusion reactor cooling. Reduction of prior maximum bubble pressure results on potassium by the Schroedinger method was repeated by the more precise but time-consuming Sugden procedure, which increased the resulting surface tension values by an average of 0.27 percent. Thus, the Sugden method will be employed to reduce the data for sodium and lithium. 80 SOCIAL SCIENCES (GENERAL) Includes educational matters. No abstracts in this category. 81 ADMINISTRATION AND MANAGEMENT Includes management planning and research. DOE N79-27002*# National Aeronautics and Space Administration. Marshall Space Flight Center, Huntsville, Ala. SCATS: SRB COST ACCOUNTING AND TRACKING SYSTEM HANDBOOK Ross B. Zorv, Rodney D. Stewart, Gary Coley, and Marie Higginbotham Jun. 1978 42 p (NASA-TM-78302) Avail: NTIS HC A02/MF A01 CSCL 05A The Solid Rocket Booster Cost Accounting and Tracking System (SCATS) which is an automatic data processing system designed to keep a running account of the number, description, and estimated cost of Level 2, 3, and 4 changes is described. Although designed specifically for the Space Shuttle Solid Rocket Booster Program, the ADP system can be used for any other program that has a similar structure for recording, reporting, and summing numbers and costs of changes. The program stores the alpha-numeric designators for changes, government estimated costs, proposed costs, and negotiated value in a MIRADS (Marshall Information Retrieval and Display System) format which permits This paper presents an architecture for a generalized model management system that facilitates the integration of management science models into a decision support system. The objective of the system is to support the decision-maker both in specifying a problem and in effecting a solution. This is accomplished by providing him/her with a means for interacting with a complex structured database to specify the structure of some problem; and to solve the model defined for the problem using appropriate information -- either from the database or some other source -- and efficient solution procedures. Author (GRA) N79-27004# Massachusetts Inst. of Tech., Cambridge. Operations Research Center. A COMPARISON OF HEURISTIC METHODS USED IN HIERARCHICAL PRODUCTION PLANNING Elizabeth A. Haas, Arnoldo C. Hax, and Roy E. Welsch Mar. 1979 34 p refs (Contract NO0014-75-C-0556) (AD-A066932; TR-160) Avail: NTIS HC A03/MF A01 CSCL 12/2 Hierarchical planning systems support medium range planning decisions in a batch processing production environment. In this approach, higher level (tactical) decisions impose constraints on lower level (operational) actions. Several heuristic approaches to hierarchical production planning have been proposed in the management science literature. This paper compares, conceptually and empirically, four of these approaches. The paper begins by discussing the direct optimization approach, and its associated drawbacks. The second section briefly describes several approaches to the design of a hierarchical production planning system and the distinguishing characteristics of the resulting algorithms. The third section compares four different methodologies for disaggregating tactical plans in a hierarchical setting. The paper concludes with recommendations for specific approaches to disaggregation in differing production environments. GRA Variables and parameters in the information flow process are examined. Relationships among these variables are established and the resulting theory is applied to practical situations. Models, both simulation and experimental, are developed to utilize and validate the theory. Specifically, quantitative definitions and relationships are developed for quantity of information, value of information, effectiveness of information, decision maker effectiveness, decision maker performance, and other terms. A flexible, sophisticated simulation model which permits the examination of the interrelationship between information and decision making for a wide variety of different situations is described. 82 DOCUMENTATION AND INFORMATION SCIENCE GRA N79-27009# Committee on Governmental Affairs (U. S. Senate). FEDERAL INFORMATION CENTERS ACT Washington GPO 1978 19 p Rept. to accompany S. 3259 from the Comm. on Governmental Affairs, 95th Congr., 2d Sess., 22 Aug. 1978 (S-Rept-95-1129; GPO-32-715) Avail: US Capitol, Senate Document Room The Committee on Governmental Affairs to which was referred the bill (S. 3259) a bill to authorize the establishment of Federal information centers, having considered the same, reports favorably thereon without amendment and recommends that the bill do pass. S.3259 is to establish legislative authority for a national system of Federal information centers. Federal information centers provide direct help to citizens with questions about Federal Government services, progams and regulations. The Federal Information Centers Act authorizes the Adminstrator of the General Services Administration (GSA) to establish a nationwide network of Federal information centers. The Administrator is further authorized to prescribe necessary regulations for managing the information centers. G.Y. N79-27010# Pennsylvania Univ., Philadelphia. Dept. of Decision Sciences. A DATABASE INTERFACE TO WAND FOR THE NETWORK The Database Interface (DBI) is responsible for monitoring conditions on a data base managed by a particular type of Database Management System (DBMS). At the Wharton School there are several large databases which are managed by WAND, a CODASYL-like DBMS. This thesis outlines the design and implementation of a DBI for WAND. The DBI will be integrated into the Network Alerter Service (NAS) which is being designed and implemented as a general user service for ARPANET users. The NAS will allow the monitoring of databases at various sites on the ARPANET, for conditions of interest to the user. The WAND DBI is capable of efficiently monitoring these conditions or alerters, and responding appropriately when the previously specified condition occurs. This monitoring must be done efficiently since the performance of the DBMS may otherwise become extremely degraded. Author (GRA) This paper describes the control programs and data structures used to implement multiple alerters in a relational data model environment. Alerters provide data base management systems with the capabilities of dynamically monitoring for the presence of user defined states of the data, and executing some predetermined action as a consequence of their detection. One of the main considerations in the implementation of an alerter system on a relational data base is the efficiency with which a change to a virtual relation can be detected. Programs are described for the definition, maintenance and evaluation of virtual relations. This work includes details of the use of construction diagrams as a means for their representation, as well as descriptions of the techniques for avoiding unnecessary recompu This investigation considered the methods and problems of collection, storage, processing and display of psychophysiological data from dynamic flight simulation in the Naval Air Development Center human centrifuge, using analog, mini, and remote main-frame computers. An integrated data processing system is described. Problems associated with data collection and storage are evaluated, and alternate solutions discussed. Anticipated problems in the development of data processing software are examined, and the applicable basic technology identified. Approaches to the critical problem of orderly and systematic development and maintenance of software for semi-open-shop operations is examined. Author (GRA) Certain database query systems, especially those that interpret natural language, do not require the user to have comprehensive knowledge of the database schema in order to form a meaningful query. Instead, the query is used to reference entities in the database schema and a path is automatically found through the schema which connects those entities. In this paper, we will classify those schemata in which all paths are equivalent, and then derive a method of marking a schema in order to determine the natural paths between two entities when different paths give rise to different results. Author (GRA) N79-27016# Mechanical Properties Data Center, Traverse City, Mich. THE MECHANICAL PROPERTIES DATA CENTER Final Report, 16 Sep. 1977 16 Feb. 1979 Robert C. Braden Mar. 1979 31 p refs (Contract DSA900-78-C-0447) (AD-A067974; AMMRC-TR-79-20; AR-15) Avail: NTIS HC A03/MF A01 CSCL 05/2 This report reviews and discusses the continuing operation and development of the Mechanical Properties Data Center. Activity and growth of the Center are discussed in terms of the six major areas: Input, File Maintenance, Output, Systems Development, Management and Marketing-Sales. Author (GRA) Research file data have been successfully retrieved at the Forest Products Laboratory through a high-speed cross-referencing system involving the computer program FAMULUS as modified by the Madison Academic Computing Center at the University of Wisconsin. The method of data input, transfer to computer storage, system utilization, and effectiveness are discussed. Preliminary results indicate that the system is readily usable by either on-line or batch processing, resulting in minimum return of results of about 1/2 hour and a maximum wait of 24 hours. The vocabulary method of single keywords is used with certain modifications to improve the precision of the recalled data. Author (GRA) N79-27018# Oak Ridge National Lab., Tenn. Information C. R. Shriner, ed. and L. J. Peck, ed. Nov. 1978 278 p refs (Contract W-7405-eng-26) (ORNL-EIS-144) Avail: NTIS HC A13/MF A01 A central inventory of energy-related environmental bibliographic and numeric data bases, graphics packages, integrated hardware/software systems, and models was compiled to facilitate on-line data retrieval on the DOE/RECON system. The data descriptions are organized under major data types and include descriptions of subject content, documentation, and contact persons. Also provided are computer data such as media on which the item is available size of the item computer on which the item executes, minimum hardware configuration necessary to execute the item, software languages(s) and/or data base management system utilized, and character set used. Additional data provided to define the model more accurately include a general statement of algorithms, computational methods, and theories used by the model; organizations currently using the model; the general application area of the model; sources of data utilized by the model; model validation methods, sensitivity analysis, and procedures; and general model classification. DOE Versatile, portable, rugged, and compact test and control modules for use in the development and testing of detection equipment for high-energy physics experiments are frequently needed at SLAC. The basic system developed is based on an LSI-11 microcomputer with 24K RAM, 4K ROM, 2 serial interfaces (one to the console terminal, the other to the large SLAC IBM computer complex (the TRIPLEX)), a programable clock, and a CAMAC crate controller. Results of the real-time analysis, by both the microcomputer and the TRIPLEX program may be displayed in graphical or tabular form on the console terminal. The software is written in a modular fashion so that the user can supply his own data reading and analysis routines. This system has been in use for two years. DOE N79-27020# Computer Horizons, Inc., Cherry Hill, N. J. INTERNATIONAL SCIENCE INDICATORS: DEVELOPMENT OF INDICATORS OF INTERNATIONAL SCIENTIFIC ACTIVITY USING THE SCIENCE CITATION INDEX Final Report Mark Carpenter Mar. 1979 370 p (Grant NSF SRS-77-22770) (PB-293033/7) Avail: NTIS HC A16/MF A01 CSCL 05B The manual covers the methodologies of scientific literature indicators prepared for the Science Indicators Unit of NSF for the period 1970-1976. Detailed descriptions are provided of the data base, classification procedures, and the indicators themselves. The progressive development of analytic methods with emphasis on those used for the 1975 data set is explained. Strengths and weaknesses of the various methods and indicators are delineated. GRA Mar. 1979 53 p refs Avail: NTIS N79-27021# National Bureau of Standards, Washington, D. C. DATA BASE AVAILABLE AT THE NATIONAL BUREAU OF STANDARDS LIBRARY Diane Cunningham (PB-293170/7; HC A04/MF A01 Data bases available on-line at the National Bureau of Standards (NBS) library are listed. The list is alphabetical by either the acronym or the full title of the data base, whichever is most commonly used. Such information as name of data base, dates of coverage, brief description of the data base, the principle sources employed in forming the data base information, the producer(s) of the data base, the corresponding hard copy, and the vendor(s) who distribute the various data bases is included. The General Subject Index, which follows the list of data bases. is arranged alphabetically by broad subject categories with references to the corresponding data bases. The Cross Reference Index lists variant forms of the names of the data bases in the left hand column with cross references to the name of the data bases used in this report on the right. GRA 83 ECONOMICS AND COST ANALYSIS Includes cost effectiveness studies. No abstracts in this category. 84 LAW AND POLITICAL SCIENCE Includes space law; international law; international cooperation; and patent policy. No abstracts in this category. 85 URBAN TECHNOLOGY AND TRANSPORTATION Includes applications of space technology to urban problems; technology transfer; technology assessment; and surface and mass transportation. For related information see 03 Air Transportation and Safety, 16 Space Transportation, and 44 Energy Production and Conversion. N79-27022 Colorado State Univ., Fort Collins. DEVELOPMENT OF A DRAINAGE WITH FLOOD CONTROL MANAGEMENT SYSTEM FOR URBANIZING COMMUNITIES Ph.D. Thesis Eugene Joseph Riordan 1978 231 p Avail: Univ. Microfilms Order No. 7913832 Uncertainties are clarified and a readily implementable drainage and flood control management system for the mitigation of development-induced drainage impacts is developed. The objectives are realized through a detailed examination of and recommendation on the three major elements of a drainage management system: the technical element which establishes the method of flood hydrology calculation, the financial element which establishes the methods for drainage and flood control cost calculation and cost allocation, and the regulatory element which establishes the enforcement mechanism of the drainage management program. Dissert. Abstr. The results of a determination of aerodynamic drag coefficient, CD, based on empirical prediction technique developed by The Aerospace Corporation is presented. An aircraft type drag build-up approach wherein the total drag is calculated as the sum of CD contributions from components of the vehicle is utilized. Component contributions are determined from various body/ chassis shape parameters. The acquisition and application of vehicle measurements data as required to evaluate aerodynamic road load by this prediction method for comparison with measured values are reported. Comparison of passenger car test results with wind tunnel test data on twelve of the vehicles showed good agreement on an average basis; the maximum disparity in an individual result was 18 percent. GRA N79-27026# Environmental Research Inst. of Michigan, Ann Arbor. SEMTAP: A NEW TECHNOLOGY TRANSFER NETWORK TO LINK BUSINESS AND INDUSTRY WITH FEDERAL RESEARCH AND DEVELOPMENT Final Report, Oct. 1976 - Nov. 1978 Mar. 1979 50 prefs (Grant EDA-99-06-09572) (PB-292882/8; EDA-79-027) Avail: NTIS HC A04/MF A01 CSCL 05A The technical assistance study under the Southeastern Michigan Technical Assistance Program (SEMTAP) was established consisting of the Environmental Research Institute of Michigan working with ten community colleges in Southeastern Michigan. The system was intended to demonstrate the effectiveness of providing extensive services directly to local organizations on a wide range of domestic problems which can benefit from information developed by federally sponsored research and development. Business expansion and new job opportunities in Michigan were emphasized. GRA N79-27027# Office of Technology Assessment, Washington, D. C. ANNUAL REPORT TO THE CONGRESS FOR 1978 1978 117 p refs (PB-293088/1: OTA-A-85) Avail: NTIS HC A06/MF A01 CSCL 05A The Office of Technology Assessment's annual report contains the following sections: (1) director's statement; (2) summaries of OTA reports completed in 1978; (3) assessment group activies; (4) the priorities process and (5) organization and operations. GRA N79-27028# City-Wide Development Corp., Dayton, Ohio. CITY-WIDE DEVELOPMENT CORPORATION DEVELOP |