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N89-27581# Rome Univ. (Italy). Dipartimento di Fisica.
A rather simple and attractive prescription for multiloop calculations is discussed. It consists of specification of metric, super-Beltrami differentials and the sum over spin structures in terms of the same odd characteristic e. At the end of calculations, summation over e is performed in order to restore modular invariance. For a special choice of regularization the contributions of matter supercurrents to cosmological constant vanish at least for p less than 5.
Back Action Evasion stragegies of measurement are introduced. A technique for the treatment of the parametric transducers is discussed. A perturbative approach is used in the computation of the equation of the motion of a parametric transducer under resonance forcing terms. The concept of optimal pumping spectrum and the general framework in which this concept can be fully developed are outlined. It is shown that the stroboscopic measurement scheme may be considered as a by-product of the search for an optimal pumping spectrum having an infinite number of pumps.
N89-27582# Rome Univ. (Italy). Dipartimento di Fisica. STOCHASTIC MECHANICS (MECCANICA STOCASTICA) Francesco Guerra 24 Oct. 1988 26 p in ITALIAN Submitted for publication (Preprint-634; ETN-89-94714) Avail: NTIS HC A03/MF A01
Stochastic mechanics is explained. The relation to quantum mechanics is described. It is shown that the stochastic variational principle for systems controlled in configuration space by a choice of Lagrange coordinates leads to a continuity equation and to a Hamilton-Jacobi-Madelung programming equation for a given Hamiltonian.
N89-27587# Rome Univ. (Italy). Dipartimento di Fisica.
It is shown that it is conceivable to build sources on Earth to produce fluxes of continuous and monochromatic gravity waves of the order of 0.001 to 0.00001 erg/s/sq cm. The obtainable frequencies are in the range 10 to the 15 to 8th power Hz, corresponding to wavelengths from 1 micron to several meters. The fluxes estimated are not far from the fluxes expected from the supernova explosions inside the bandwidth of a bar detector of the Weber type and are of the same order or higher than those expected from periodic astrophysics sources like the Crab pulsar. It is also shown that for a certain range of frequencies detectors exist with sufficient sensitivity to detect the signal.
N89-27583# Rome Univ. (Italy). Dipartimento di Fisica.
Submitted for publication Sponsored in part by Italian Ministry of Education, Rome (Preprint-600; ETN-89-94689) Avail: NTIS HC A03/MF A01
The generating functional of the correlation functions of the stress energy tensor in conformal field theory is derived and shown to be equal to the effective action for two-dimensional induced gravity in the light cone gauge given by Polyakov (1987). Seeking the condition for consistent quantatization of such an action, one arrives at a chiral SU(2)xSU(2) current algebra. The corresponding Kac-Moody algebra has the central charge given by k=(C-26)/6.
80 SOCIAL SCIENCES (GENERAL)
Includes educational matters.
No abstracts in this category.
N89-27584# Rome Univ. (Italy). Dipartimento di Fisica. ON THE INTEGRABILITY OF THE ERNST EQUATION Donato Bini and Valeria Ferrari 16 Jun. 1988 7p Submitted for publication (Preprint-606; ETN-89-94694) Avail: NTIS HC A02/MF A01
A method of integration of the Ernst equation is proposed. A class of exact solutions allowing a conservation law is found.
81 ADMINISTRATION AND
Includes management planning and research.
N89-27585# Rome Univ. (Italy). Dipartimento di Fisica.
Previously announced in IAA as A88-53533 Submitted for publication (Preprint-607; ETN-89-94695) Avail: NTIS HC A03/MF A01
Quantum general relativity is defined in terms of functionals of sets of loops in 3-space. In this representation exact solutions of the quantum constraints may be obtained. This result is related to the simplication of the constraints in Ashtekar's formalism. The general solution of the diffeomorphisms constraint and a large class of solutions of the full set of constraints are given in closed form. These are classified by the knot and link classes of the spatial 3-manifold.
N89-27588# Tilburg Univ. (Netherlands). Dept. of Economics.
The study elaborates on earlier work by Bu-Bshait in identifying which project characteristics significantly intensify the need for a more elaborate use of project management techniques for various project types. A regression model is developed to estimate the number of project management techniques used, based upon a set of project characteristics. As such, the study provides further insight in the understanding of the missing link between project attributes and the implementation of engineering management tools.
Laboratories. Within these areas, abstracts are listed numerically. An author index and title index are provided at the back of the book for cross referencing.
82 DOCUMENTATION AND
Includes information management; information storage and retrieval technology; technical writing; graphic arts; and micrography.
For computer documentation see 61 Computer Programming and Software.
N89-27589# National Oceanic and Atmospheric Administration,
All known Environmental Research Laboratories (ERL) articles published in journals for FY-1988 and those reports published within the official series of the Laboratories, as well as conference proceedings and other reports are included. Also included are publications by ERL-University cooperative institutes and by contractors funded by ERL. They include: investigation of ocean processes and their interactions with the atmosphere; studies of the ocean environment as it is affected by waste disposal and development of energy and food resources; fundamental studies of the upper atmosphere and space environments; atmosphere and ocean research on weather and climate change; research on severe local storms, hurricanes, and tsunamis; studies of cloud processes; research on the environmental effects of regional and global pollution; and development of equipment, instruments, systems, and facilities for these programs.
N89-27592# Argonne National Lab., IL. Energy and
A computer system known as the Data Analysis, Retrieval, and Tabulation System (DARTS) was developed by the Energy and Environmental Systems Division at Argonne National Laboratory to generate tables of descriptive statistics derived from analyses of housing and energy data sources. Through a simple input command, the user can request the preparation of a hierarchical table based on any combination of several hundred of the most commonly analyzed variables. The system was written in the Statistical Analysis System (SAS) language and designed for use on a large-scale IBM mainframe computer.
N89-27590# Economic Systems Analysis, Inc., Oak Ridge, TN. TECHNOLOGY MASTER LIST DATA BASE MANAGEMENT SYSTEM, USER'S MANUAL Jeanne Yates Rimpo and Marlene J. Owens Sep. 1988 111 p (Contract GRI-5088-450-1667) (PB89-177802; GRI-88/0249) Avail: NTIS HC A06/MF A01 CSCL 05B
In order to track the movement of Gas Research Institute (GRI) projects from the drawing-board concept to commercialized product, GRI developed a Master List of these technologies and research applications. An interactive data base management program (titled WIN) was developed to permit manipulation and updating of the Master List data base. The user's manual provides information on using this data base management program, including record management (adding, editing, deleting, and moving records), report generation (selecting, sorting, and printing), and data base maintenance. The system is designed to be used with the dBase III Plus software on IBM or compatible personal computers.
N89-27593# Sandia National Labs., Albuquerque, NM.
Presented at the INGRES User Association Meeting, New Orleans, LA, 23 Apr. 1989 (Contract DE-AC04-76DP-00789) (DE89-013520; SAND-89-0838C; CONF-8904194-3) Avail: NTIS HC A03/MF A01
The design of a data base for storing diverse geological and site engineering properties data from various sources using the INGRES data base management system has required: (1) designing tables for data that are similar but have very different test conditions to be reported; (2) determining what data is necessary to ensure that all records are unique; (3) changing, as necessary, the design of data base tables to accommodate the needs of new data submittals; (4) defining limits to comments and descriptions of test conditions to be stored in the data base; (5) solving problems caused by the limitations of the available field types in INGRES; and (6) designing a tracking system for data submissions to satisfy Project quality assurance requirements. The resulting relational data base design is simple, flexible, and capable of accommodating changes in requirements for data storage and user needs. The INGRES Report Writer utility has proven to be a powerful tool for generating reports because the Report Writer code is easily revised as table structure changes. Separate data storage tables can be joined for report production, and output can be customized for each user.
N89-27591# Lawrence Livermore National Lab., CA.
This document is a compilation of the abstracts from unclassified documents published by Mechanical Engineering at Lawrence Livermore National Laboratory (LLNL) during the calendar year 1988. Many abstracts summarize work completed and published in report form. These are UCRL-90,000 and 100,000 series documents, which include the full text of articles to be published in journals and of papers to be presented at meetings, and UCID reports, which are informal documents. Not all UCIDs contain abstracts: short summaries were generated when abstracts were not included. Technical Abstracts also provides brief descriptions of those documents assigned to the MISC (miscellaneous) category. These are generally viewgraphs or photographs presented at meetings. The abstracts cover the broad range of technologies within Mechanical Engineering and are grouped by the principal author's division. An eighth category is devoted to abstracts presented at the CUBE symposium sponsored jointly by LLNL, Los Alamos National Laboratory, and Sandia
N89-27594# National Inst. of Standards and Technology, Gaithersburg, MD. NIST (NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY) RESEARCH REPORTS, MARCH 1989 1989 36 p (PB89-189310; NIST/SP-761) Avail: NTIS HC A03/MF A01 CSCL 05B
A number of articles are contained which discuss the following subjects: Research update; Light: The wave of the future; New centers to aid industry; Commercialization of technology: Whose job; NIST 1990 budget proposed; Quest for quality; Too hot to handle, but not to measure; the beauty of time; and Cold neutron facility.
N89-27595# Federal Communications Commission, Washington,
(Contract F49620-87-C-0005; AF Proj. 2304)
The research and development toward the goal of automatically planning and generating fluent multisentence paragraphs of English text is summarized. The work consisted of three principal components, namely knowledge representation, grammar development, and text structuring. With respect to knowledge representation, a powerful technique of linking the generator with arbitrary applications was developed by using a very general underlying taxonomy of entities in the world and various specific domain-related taxonomies. As part of grammar development, the invertibility of the grammar in use by the project was investigated, with the eventual goal of developing a combined bidirectional parsing-generation system using the same grammar net-work. Finally, a text structure planner was developed and the whole system was successfully used to generate paragraphs in three different application domains.
N89-27596# Oak Ridge Gaseous Diffusion Plant, TN.
This study identifies approaches to digital signature and text authentication (DS and TA) concerns for DOE-wide applications. Recommendations were derived from among the optional approaches identifiable from the literature and from known systems implementing digital signatures and text authenication. The primary issue is the adequacy of safeguards to assure signature and text authenticity.
83 ECONOMICS AND COST ANALYSIS
Includes cost effectiveness studies.
No abstracts in this category.
N89-27597# Sandia National Labs., Albuquerque, NM. Organic Materials Div. MANAGEMENT INFORMATION DATABASE SYSTEM Nancy L. Leishman May 1989 34 p (Contract DE-AC04-76DP-00789) (DE89-014595; SAND-88-3439) Avail: NTIS HC A03/MF A01
This is a description of a computerized database tool for use by operational management. The Management Information Database System was created to more efficiently maintain the information needed by managers for time and material cost accounting and resource scheduling. Reports produced reflect the current status of assignments and balances of F-orders. DOE
84 LAW, POLITICAL SCIENCE AND
Includes NASA appropriation hearings; aviation law; space law and policy; international law; international cooperation; and patent policy.
No abstracts in this category.
N89-27598# Rutgers - The State Univ., New Brunswick, NJ.
85 URBAN TECHNOLOGY AND
Includes applications of space technology to urban problems; technology transfer; technology assessment; and surface and mass transportation.
For related information see also 03 Air Transportation and Safety, 16 Space Transportation, and 44 Energy Production and Conversion.
Knowledge base refinement is the modification of an existing expert system knowledge base with the goals of localizing specific weaknesses in a knowledge base and improving an expert system's performance. Systems that automate some aspects of knowledge base refinement can have a significant impact on the related problems of knowledge base acquisition, maintenance, verification, and learning from experience. The SEEK system was the first expert system framework to integrate large-scale performance information into all phases of knowledge base development and to provide automatic information about rule refinement. A recently developed successor system, SEEK2 Ginsberg, Weiss, and Politakis 88 significantly expands the scope of the original system in terms of generality and automated capabilities. The investigators expect to make significant progress in automating empirical expert system techniques for knowledge acquisition, knowledge base refinement, maintenance, and verification. The investigators will demonstrate a rule refinement system in an application of the diagnosis of complex equipment failure: computer network troubleshooting.
N89-27600# National Academy of Sciences - National Research Council, Washington, DC. SCIENCE AND TECHNOLOGY ADVICE IN THE WHITE HOUSE: RECOMMENDATIONS FOR PRESIDENT-ELECT GEORGE BUSH 1988 20 p (PB89-169817) Avail: NTIS HC A03/MF A01 CSCL 05D
The role and qualifications of the science and technology adviser from the perspective of pressures upon and opportunities available to the Bush Administration are discussed. Like the office itself, the following analysis and recommendations serve no purpose unless they serve the interests of the President of the United States.
N89-27599# California Univ., Marina del Rey. Information
N89-27601# Rensselaer Polytechnic Inst., Troy, NY. Center for
Proceedings of the International Symposium on Advanced Comfort Systems for the Work-Environment, Rensselaerville, NY, 1-3 May 1988
88 SPACE SCIENCES (GENERAL)
(Grant NSF MSM-86-13483)
The collection of 37 papers addresses the sick building syndrome, the changes due to the introduction of computers in the workplace, low productivity in the work environment, electronically enhanced building systems, shifts in usage patterns, building diagnostics, energy efficiency, and whole building performance.
No abstracts in this category.
Includes radio, gamma-ray, and infrared astronomy, and astrometry.
N89-27602# National Inst. of Standards and Technology,
An overview is given of the National Engineering Laboratory (NEL). Described is the climate that influences NEL's work, program and budget trends, and the external interactions with industry, academia, and trade and professional organizations. Descriptions of NEL's program activities with accompanying lists of recent accomplishments, trends, and significant budget changes are also included. The programs described are Electronic and Electrical Measurements, Manufacturing Research and Standards, Building Research, Fire Research, Chemical Engineering Metrology, Mathematical Sciences, Computing Support, Energy Related Inventions, and Law Enforcement Standards. The impact of the recently enacted Omnibus Trade and Competitiveness Act of 1988 is discussed.
N89-27605# Onsala Space Observatory (Sweden).
The Swedish-ESO Submillimeter Telescope (SEST) is a 15 m telescope, which can operate at wavelengths down to 0.8 mm, built on the European Southern Observatory (ESO) site of La Silla, in the Chilean Andes, at an altitude of 2300 m. It is the only large submillimeter telescope in the Southern Hemisphere. The main technical features of the telescope and observing system, and the results of the commissioning tests by the team in Chile are described. The telescope reflector surface has been set within 65 micrometers vms of the ideal paraboloid, and the aperture efficiency at 100 GHz is about 60 percent.
N89-27603# Office of Technology Assessment, Washington, DC. REPORT TO THE CONGRESS Annual Report, Fiscal Year 1988 Mar. 1989 137 (PB89-195408; OTA-A-411) Avail: NTIS HC A07/MF A01
A-A-411) CSCL 05A
(Public Law 92-484) to provide the Congress with the new effective means for securing competent, unbiased information concerning the physical, biological, economic, social and political effects of technological applications. The activities of OTA for the calendar year 1988 are summarized. Included are discussions of its organization and operation, summaries of assessments completed during 1986, descriptions of work in progress, and a list of staff members, advisors, and panel members. A copy of the Technology Assessment Act of 1972 is also included. GRA
N89-27604# Institute of Gas Technology, Chicago, IL. DEDICATED LOW-PRESSURE NATURAL GAS-FUELED VEHICLE BASELINE ASSESSMENT. TASK 3 TOPICAL REPORT ON LIGHT-DUTY VEHICLES Topical Report, Jan. 1987 - Jan. 1989 R. T. Biederman, J. A. Arnold, and C. F. Blazek Jan. 1989 118 p (Contract GRI-5086-530-1365; IGT Proj. 32001-03) (PB89-195820; GRI-89/0122) Avail: NTIS HC A06/MF A01 CSCL 13F
The study defines a dedicated natural gas-fueled vehicle system that best incorporates all the features of the low-pressure natural gas storage system being developed. Cost sensitivity analyses are presented for 250, 100, and 25 vehicle fleets. These analyses are useful in assessing the feasibility of individual fleet applications under a variety of possible scenarios. These scenarios are approached using ranges to describe the critical parameters involved in the analysis, such as vehicle cost premium, fuel cost differential, annual mileage, O and M costs, and capital costs.
N89-27606# Michigan Univ., Ann Arbor. Physics Lab. OBSERVING PRIMEVAL GALAXIES AND DARK MATTER WITH LAIRTS Final Report, 1 Feb. 1985 - 31 Aug. 1988 Dennis J. Hegyi 5 Dec. 1988 7 p (Grant AF-AFOSR-0120-85; AF Proj. 2311) (AD-A208286; AFOSR-89-0575TR) Avail: NTIS HC A02/MF A01 CSCL 03/1
Observations of the extragalactic background light have been made at three wavelengths using our charge coupled device (CCD) system with a large angular field of view on the McGraw-Hill 1.3 m telescope. Data has been obtained at high galactic latitudes to reduce complications resulting from foreground stars and galaxies and from infrared cirrus. Exposures from overlapping fields were obtained to check the internal consistency of the data. Also, a grid of scattering profiles was obtained in which a star was imaged at many different positions on and off the CCD to take account of scattering contributions. Because the fields contained so many foreground stars and galaxies, it was necessary to develop an automated technique using a matched filter to pick out these objects and to then subtract them from the data. This has been accomplished for fields consisting of one-quarter of a CCD field. Our data analysis has yielded an amplitude for the power spectrum which is about 2.5 times larger than calculated using a model with no galaxy luminosity evolution. Recently, Tyson has shown some clear evidence for galaxy luminosity evolution which while not quantitative, qualitatively explains our data. Other work during this funding period has been on the nature of dark matter, speckle inteferametric resolution of the binary star system Mu Cassioppeiae, and a measurement of the temperature of the cosmic background radiation at 2.64 mm.
Includes cosmology; celestial mechanics; space plasmas; and interstellar and interplanetary gases and dust.
For related information see also 75 Plasma Physics.
N89-27607# National Oceanic and Atmospheric Administration, Boulder, CO. Space Environment Lab. SPACE ENVIRONMENT LABORATORY Annual Report, FY 1988, 1 Oct. 1987 - 30 Sep. 1988 Jan. 1989 50 p (PB89-159602) Avail: NTIS HC A03/MF A01 CSCL 03B
Topics covered include: space environment data collection services; solar flare forecasting and analysis; geomagnetic services development; research (ionospheric radio, sudden ionospheric disturbances, atmospheric ionospheric magnetospheric interactions, magnetospheric physics, interplanetary physics, solar physics, and solar X-ray physics); and development (space environment data system, operational satellite instrumentation, workstation and expert systems, object oriented programming, wide-area networking, and interplanetary scintillation observations). A listing of personnel, publications and talks is also presented.
Grossman Meeting, Perth, Australia, 8-13 Aug. 1988 Submitted for publication Prepared in cooperation with International Centre for Theoretical Physics, Trieste, Italy (PB89-170039; QAUM-88/36) Avail: NTIS HC A03/MF A01 CSCL 033
Black holes are usually defined in the context of asymptotically flat spacetimes. In order to demonstrate that the black hole and big crunch singularities are essentially part and parcel of the same singularity, cut-and-paste methods were used to construct models in which the black hole was embedded in a closed cosmology. The variation of the properties of the model with initial conditions is investigated. The problem, that there is no longer an observer at infinity (as a ready reference to define the black hole), is overcome by using a foliation of constant mean extrinsic curvature to define the preferred observer at every point.
N89-27608*# Fermi National Accelerator Lab., Batavia, IL.
N89-27611# Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Mathematics. RELATIVISTIC EXPLANATION OF THE INCLINATION OF PLANETARY ORBITS Asghar Qadir and H. A. Rizvi Aug. 1988 25 p (PB89-170005; QAUM-88/35) Avail: NTIS HC A03/MF A01 CSCL 03B
While the planetary orbits are nearly in the same plane, they are in sufficiently different planes that either the inclination has to be taken as an initial condition or there has to be some driving mechanism. This mechanism must either take the planets out of their common plane or bring them towards the common plane. It was suggested that the General Relativistic force due to solar rotation, acting over sufficiently long times might provide the former mechanism. Using the pseudo-Newtonian formalism to express relativity in terms of forces, it is shown that the inclination could not be an initial condition. A generally accepted model of the early stages of the formation of the solar system is used to follow up the suggestion more concretely.
(Contract NAGW-1340; W-7405-eng-48; NSF PHY-82-17853)
Nontopological solitons are stable field configurations which may be formed in a primordial phase transition. Their cosmic evolution is studied, and the possibility that such objects could contribute significantly to the energy density of the Universe is examined. As the Universe cools, initially all but the largest lumps evaporate into free particles; those which survive may subsequently enter a brief accretion phase before they freeze out at a final size. Although the minimum critical charges which survive depend on particle masses and couplings, researchers develop an analysis which applies to a wide class of models. In most cases, solitons of moderate size survive the evaporation process only if there is a significant charge asymmetry or if they form at a temperature well below their binding energy per charge.
N89-27612* # National Aeronautics and Space Administration.
Information supplementary to that contained in Section 4 of an article entitled, A CO Survey of Regions Around 34 Open Clusters, (Leisawitz, Bash, and Thaddeus) published in the Astrophysical Journal Supplement Series, Volume 70, Number 4, August 1989 is summarized. The information presented here, which describes the interstellar environments of young clusters and some cluster physical characteristics, comes from observations published in the astronomical literature and the author's carbon monoxide (CO) emission line survey, and may help clarify our understanding of the interaction of massive stars with the interstellar medium.
N89-27609# Instituto de Pesquisas Espaciais, Sao Jose dos
In PORTUGUESE; ENGLISH summary (INPE-4646-TDL/338) Avail: NTIS HC A07/MF A01
A brief review is presented of radiation maser molecules, their observational characteristics and their importance to astrophysics. The molecular rotational spectra was analyzed and the basic equations of the maser theory was developed. In the water vapor maser monitoring program associated with regions of star formation at the Itapetinga Radio Observatory (ROI), the sources Orion A, G331.5-0.1 and GGD25 (NGC6334) was observed almost monthly from December 1980 to December 1986. The temporal variability of the intensity obtained from these masers had time scales 10(6) to 10(7) s providing rigid constraints to the possible pumping mechanisms. As a result of this monitoring program, several conclusions can be obtained depending of the evolutionary state and the dynamics of the sources.
N89-27613# Onsala Space Observatory (Sweden).
An observing program was started to detect and map the molecular gas in elliptical and lenticular galaxies using the CO(1-0) and (2-1) emission lines as tracers of the gas. The galaxies they have observed to date constitute a sample selected through their far-IR properties and the presence of dust only. Remarkably enough, the detection rate was very high, approaching 100 percent if one excludes those with upper limits too large to be significant when compared with the levels of the detected ones. The
N89-27610# Quaid-i-Azam Univ., Islamabad (Pakistan). Dept.