WorldWideScience

Sample records for universal multizone crystallizator

  1. Peculiarities of the coolant of large ingots in crystallizators of semicontinuous casting machines

    International Nuclear Information System (INIS)

    Tsukerman, V.Ya.; Marchenko, I.K.; Rimen, V.Kh.

    1983-01-01

    Peculiarities of heat transfer in crystallizator of semicontinuous blank casting machine were investigated, taking carbon and chromium-nickel steels as an example. The effect of crystallizator cross-section and decrease of the rate of metal casting on ingot cooling was considered at that. It was established that nonuniformity of deformation of ingot skin as well as the state of crystallizator operating walls affect on heat transfer in crystallizator. Crystallizator structure with ribs in upper part and without ribs in lower cone part is optimal. It provides more uniform skin growth in initial period of solidification and compensation of gap, which appears due to shrinkage

  2. Assessing multizone airflow simulation software

    International Nuclear Information System (INIS)

    Lorenzetti, D.M.

    2002-01-01

    Several standard multizone modeling programs, in order to improve their computational efficiency, make a number of simplifying assumptions. This paper examines how those assumptions reduce the solution times and memory use of the programs, but at the cost of restricting the models they can express. Applications where these restrictions may adversely affect the program's usefulness include: (1) natural ventilation, when buoyancy effects dominate mechanically-driven flow; (2) duct system design, when losses in T-junctions affect the system performance; and (3) control system design, when the dynamic transport of pollutants plays a significant role in the simulated system

  3. Contaminant ingress into multizone buildings: An analytical state-space approach

    KAUST Repository

    Parker, Simon

    2013-08-13

    The ingress of exterior contaminants into buildings is often assessed by treating the building interior as a single well-mixed space. Multizone modelling provides an alternative way of representing buildings that can estimate concentration time series in different internal locations. A state-space approach is adopted to represent the concentration dynamics within multizone buildings. Analysis based on this approach is used to demonstrate that the exposure in every interior location is limited to the exterior exposure in the absence of removal mechanisms. Estimates are also developed for the short term maximum concentration and exposure in a multizone building in response to a step-change in concentration. These have considerable potential for practical use. The analytical development is demonstrated using a simple two-zone building with an inner zone and a range of existing multizone models of residential buildings. Quantitative measures are provided of the standard deviation of concentration and exposure within a range of residential multizone buildings. Ratios of the maximum short term concentrations and exposures to single zone building estimates are also provided for the same buildings. © 2013 Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

  4. Optimization of the crystallizability of a single-chain antibody fragment

    Czech Academy of Sciences Publication Activity Database

    Škerlová, Jana; Král, Vlastimil; Fábry, Milan; Sedláček, Juraj; Veverka, Václav; Řezáčová, Pavlína

    2014-01-01

    Roč. 70, č. 12 (2014), s. 1701-1706 ISSN 1744-3091 R&D Projects: GA MŠk(CZ) LK11205 Institutional support: RVO:61388963 ; RVO:68378050 Keywords : single-chain antibody fragment * Thermofluor assay * differential scanning fluorimetry * crystallizability optimization * oligomerization * crystallization Subject RIV: CE - Biochemistry Impact factor: 0.527, year: 2014

  5. Integration of a Multizone Airflow Model into a Thermalsimulation Program

    DEFF Research Database (Denmark)

    Jensen, Rasmus Lund; Sørensen, Karl Grau; Heiselberg, Per

    2007-01-01

    An existing computer model for dynamic hygrothermal analysis of buildings has been extended with a multizone airflow model based on loop equations to account for the coupled thermal and airflow in natural and hybrid ventilated buildings. In water distribution network and related fields loop...... a methodology adopted from water distribution network that automatically sets up the independent loops and is easy to implement into a computer program. Finally an example of verification of the model is given which demonstrates the ability of the models to accurately predict the airflow of a simple multizone...

  6. Fv-clasp: An Artificially Designed Small Antibody Fragment with Improved Production Compatibility, Stability, and Crystallizability.

    Science.gov (United States)

    Arimori, Takao; Kitago, Yu; Umitsu, Masataka; Fujii, Yuki; Asaki, Ryoko; Tamura-Kawakami, Keiko; Takagi, Junichi

    2017-10-03

    Antibody fragments are frequently used as a "crystallization chaperone" to aid structural analysis of complex macromolecules that are otherwise crystallization resistant, but conventional fragment formats have not been designed for this particular application. By fusing an anti-parallel coiled-coil structure derived from the SARAH domain of human Mst1 kinase to the variable region of an antibody, we succeeded in creating a novel chimeric antibody fragment of ∼37 kDa, termed "Fv-clasp," which exhibits excellent crystallization compatibility while maintaining the binding ability of the original IgG molecule. The "clasp" and the engineered disulfide bond at the bottom of the Fv suppressed the internal mobility of the fragment and shielded hydrophobic residues, likely contributing to the high heat stability and the crystallizability of the Fv-clasp. Finally, Fv-clasp antibodies showed superior "chaperoning" activity over conventional Fab fragments, and facilitated the structure determination of an ectodomain fragment of integrin α6β1. Copyright © 2017 Elsevier Ltd. All rights reserved.

  7. Contaminant ingress into multizone buildings: An analytical state-space approach

    KAUST Repository

    Parker, Simon; Coffey, Chris; Gravesen, Jens; Kirkpatrick, James; Ratcliffe, Keith; Lingard, Bryan; Nally, James

    2013-01-01

    The ingress of exterior contaminants into buildings is often assessed by treating the building interior as a single well-mixed space. Multizone modelling provides an alternative way of representing buildings that can estimate concentration time

  8. Integration of a Multizone Airflow Model into a Thermal simulation Program

    DEFF Research Database (Denmark)

    Jensen, Rasmus Lund; Sørensen, Karl Grau; Heiselberg, Per

    2007-01-01

    An existing computer model for dynamic hygrothermal analysis of buildings has been extended with a multizone airflow model based on loop equations to account for the coupled thermal and airflow in natural and hybrid ventilated buildings.......An existing computer model for dynamic hygrothermal analysis of buildings has been extended with a multizone airflow model based on loop equations to account for the coupled thermal and airflow in natural and hybrid ventilated buildings....

  9. Intradomain Textures in Block Copolymers: Multizone Alignment and Biaxiality

    Science.gov (United States)

    Prasad, Ishan; Seo, Youngmi; Hall, Lisa M.; Grason, Gregory M.

    2017-06-01

    Block copolymer (BCP) melt assembly has been studied for decades, focusing largely on self-organized spatial patterns of periodically ordered segment density. Here, we demonstrate that underlying the well-known composition profiles (i.e., ordered lamella, cylinders, spheres, and networks) are generic and heterogeneous patterns of segment orientation that couple strongly to morphology, even in the absence of specific factors that promote intra or interchain segment alignment. We employ both self-consistent field theory and coarse-grained simulation methods to measure polar and nematic order parameters of segments in a freely jointed chain model of diblock melts. We show that BCP morphologies have a multizone texture, with segments predominantly aligned normal and parallel to interdomain interfaces in the respective brush and interfacial regions of the microdomain. Further, morphologies with anisotropically curved interfaces (i.e., cylinders and networks) exhibit biaxial order that is aligned to the principal curvature axes of the interface.

  10. A distributed control algorithm for internal flow management in a multi-zone climate unit

    NARCIS (Netherlands)

    Persis, C. De; Jessen, J.J.; Izadi-Zamanabadi, R.; Schiøler, H.

    2008-01-01

    We examine a distributed control problem for internal flow management in a multi-zone climate unit. The problem consists of guaranteeing prescribed indoor climate conditions in a cascade connection of an arbitrarily large number of communicating zones, in which air masses are exchanged to redirect

  11. Parameter Estimation of Dynamic Multi-zone Models for Livestock Indoor Climate Control

    DEFF Research Database (Denmark)

    Wu, Zhuang; Stoustrup, Jakob; Heiselberg, Per

    2008-01-01

    , the livestock, the ventilation system and the building on the dynamic performance of indoor climate. Some significant parameters employed in the climate model as well as the airflow interaction between each conceptual zone are identified with the use of experimental time series data collected during spring......In this paper, a multi-zone modeling concept is proposed based on a simplified energy balance formulation to provide a better prediction of the indoor horizontal temperature variation inside the livestock building. The developed mathematical models reflect the influences from the weather...... and winter at a real scale livestock building in Denmark. The obtained comparative results between the measured data and the simulated output confirm that a very simple multi-zone model can capture the salient dynamical features of the climate dynamics which are needed for control purposes....

  12. Prediction and Validation of Heat Release Direct Injection Diesel Engine Using Multi-Zone Model

    Science.gov (United States)

    Anang Nugroho, Bagus; Sugiarto, Bambang; Prawoto; Shalahuddin, Lukman

    2014-04-01

    The objective of this study is to develop simulation model which capable to predict heat release of diesel combustion accurately in efficient computation time. A multi-zone packet model has been applied to solve the combustion phenomena inside diesel cylinder. The model formulations are presented first and then the numerical results are validated on a single cylinder direct injection diesel engine at various engine speed and timing injections. The model were found to be promising to fulfill the objective above.

  13. A parametric investigation of hydrogen hcci combustion using a multi-zone model approach

    International Nuclear Information System (INIS)

    Komninos, N.P.; Hountalas, D.T.; Rakopoulos, C.D.

    2007-01-01

    The purpose of the present study is to examine the effect of various operating variables of a homogeneous charge compression ignition (HCCI) engine fueled with hydrogen, using a multi-zone model developed by the authors. The multi-zone model consists of zones, which are allotted spatial locations within the combustion chamber. The model takes into account heat transfer between the zones and the combustion chamber walls, providing a spatial temperature distribution during the closed part of the engine cycle, i.e. compression, combustion and expansion. Mass transfer between zones is also accounted for, based on the geometric configuration of the zones, and includes the flow of mass in and out of the crevice regions, represented by the crevice zone. Combustion is incorporated using chemical kinetics based on a chemical reaction mechanism for the oxidation of hydrogen. This chemical reaction mechanism also includes the reactions for nitrogen oxides formation. Using the multi-zone model a parametric investigation is conducted, in order to determine the effect of engine speed, equivalence ratio, compression ratio, inlet pressure and inlet temperature, on the performance, combustion characteristics and emissions of an HCCI engine fueled with hydrogen

  14. MPIRUN: A Portable Loader for Multidisciplinary and Multi-Zonal Applications

    Science.gov (United States)

    Fineberg, Samuel A.; Woodrow, Thomas S. (Technical Monitor)

    1994-01-01

    Multidisciplinary and multi-zonal applications are an important class of applications in the area of Computational Aerosciences. In these codes, two or more distinct parallel programs or copies of a single program are utilized to model a single problem. To support such applications, it is common to use a programming model where a program is divided into several single program multiple data stream (SPMD) applications, each of which solves the equations for a single physical discipline or grid zone. These SPMD applications are then bound together to form a single multidisciplinary or multi-zonal program in which the constituent parts communicate via point-to-point message passing routines. One method for implementing the message passing portion of these codes is with the new Message Passing Interface (MPI) standard. Unfortunately, this standard only specifies the message passing portion of an application, but does not specify any portable mechanisms for loading an application. MPIRUN was developed to provide a portable means for loading MPI programs, and was specifically targeted at multidisciplinary and multi-zonal applications. Programs using MPIRUN for loading and MPI for message passing are then portable between all machines supported by MPIRUN. MPIRUN is currently implemented for the Intel iPSC/860, TMC CM5, IBM SP-1 and SP-2, Intel Paragon, and workstation clusters. Further, MPIRUN is designed to be simple enough to port easily to any system supporting MPI.

  15. A new multi-zone model for porosity distribution in Al–Si alloy castings

    DEFF Research Database (Denmark)

    Tiedje, Niels Skat; Taylor, John A.; Easton, Mark A.

    2013-01-01

    A new multi-zone model is proposed that explains how porosity forms in various regions of a casting under different conditions and leads to distinct zonal differences in pore shape, size and distribution. This model was developed by considering the effect of cooling rate on solidification......) a central zone where the thermal gradient is low and equiaxed dendritic grains and eutectic cells grow at the centre of the casting and larger, rounded pores tend to form. The paper discusses how Si content, modification type and cooling conditions influence the location and size (i.e. depth) of each...

  16. Multi-Zone hybrid model for failure detection of the stable ventilation systems

    DEFF Research Database (Denmark)

    Gholami, Mehdi; Schiøler, Henrik; Soltani, Mohsen

    2010-01-01

    In this paper, a conceptual multi-zone model for climate control of a live stock building is elaborated. The main challenge of this research is to estimate the parameters of a nonlinear hybrid model. A recursive estimation algorithm, the Extended Kalman Filter (EKF) is implemented for estimation....... Since the EKF is sensitive to the initial guess, in the following the estimation process is split up into simple parts and approximate parameters are found with a non recursive least squares method in order to provide good initial values. Results based on experiments from a real life stable facility...

  17. A numerical model including PID control of a multizone crystal growth furnace

    Science.gov (United States)

    Panzarella, Charles H.; Kassemi, Mohammad

    1992-01-01

    This paper presents a 2D axisymmetric combined conduction and radiation model of a multizone crystal growth furnace. The model is based on a programmable multizone furnace (PMZF) designed and built at NASA Lewis Research Center for growing high quality semiconductor crystals. A novel feature of this model is a control algorithm which automatically adjusts the power in any number of independently controlled heaters to establish the desired crystal temperatures in the furnace model. The control algorithm eliminates the need for numerous trial and error runs previously required to obtain the same results. The finite element code, FIDAP, used to develop the furnace model, was modified to directly incorporate the control algorithm. This algorithm, which presently uses PID control, and the associated heat transfer model are briefly discussed. Together, they have been used to predict the heater power distributions for a variety of furnace configurations and desired temperature profiles. Examples are included to demonstrate the effectiveness of the PID controlled model in establishing isothermal, Bridgman, and other complicated temperature profies in the sample. Finally, an example is given to show how the algorithm can be used to change the desired profile with time according to a prescribed temperature-time evolution.

  18. Multi-zone thermodynamic modelling of spark-ignition engine combustion - An overview

    International Nuclear Information System (INIS)

    Verhelst, S.; Sheppard, C.G.W.

    2009-01-01

    'Multi-zone thermodynamic engine model' is a generic term adopted here for the type of model also referred to as quasi-dimensional, two-zone, three-zone, etc.; based on the laws of mass and energy conservation and using a mass burning rate sub-model (as opposed to a prescribed mass burning rate) to predict the in-cylinder pressure and temperature throughout the power cycle. Such models have been used for about three decades and provide valuable tools for rapid evaluation of the influence of key engine parameters. Numerous papers have been published on the development of models of varying complexity and their application. The current work is not intended as a comprehensive review of all these works, but presents an overview of multi-zone thermodynamic models for spark-ignition engines, their pros and cons, the model equations and sub-models used to account for various processes such as turbulent wrinkling, flame development, flame geometry, heat transfer, etc. It is suggested that some past terminology adopted to distinguish combustion models (e.g. 'entrainment' versus 'flamelet') is artificial and confusing; it can also be difficult to compare the different models used. Naturally, different models use varying underlying assumptions; however, the influence of several physical processes has frequently been incorporated into one term, not always well documented or clearly described. The authors propose a unified framework that can be used to compare different sub-models on the same basis, with particular focus on turbulent combustion models.

  19. Effect of multizone refractive multifocal contact lenses on standard automated perimetry.

    Science.gov (United States)

    Madrid-Costa, David; Ruiz-Alcocer, Javier; García-Lázaro, Santiago; Albarrán-Diego, César; Ferrer-Blasco, Teresa

    2012-09-01

    The aim of this study was to evaluate whether the creation of 2 foci (distance and near) provided by multizone refractive multifocal contact lenses (CLs) for presbyopia correction affects the measurements on Humphreys 24-2 Swedish interactive threshold algorithm (SITA) standard automated perimetry (SAP). In this crossover study, 30 subjects were fitted in random order with either a multifocal CL or a monofocal CL. After 1 month, a Humphrey 24-2 SITA standard strategy was performed. The visual field global indices (the mean deviation [MD] and pattern standard deviation [PSD]), reliability indices, test duration, and number of depressed points deviating at P0.5% on pattern deviation probability plots were determined and compared between multifocal and monofocal CLs. Thirty eyes of 30 subjects were included in this study. There were no statistically significant differences in reliability indices or test duration. There was a statistically significant reduction in the MD with the multifocal CL compared with monfocal CL (P=0.001). Differences were not found in PSD nor in the number of depressed points deviating at P0.5% in the pattern deviation probability maps studied. The results of this study suggest that the multizone refractive lens produces a generalized depression in threshold sensitivity as measured by the Humphreys 24-2 SITA SAP.

  20. Comparison of sensor systems designed using multizone, zonal, and CFD data for protection of indoor environments

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Y. Lisa; Wen, Jin [Civil, Architectural, and Environmental Engineering, Drexel University, Philadelphia, PA 19104 (United States)

    2010-04-15

    Sensors that detect chemical and biological warfare agents can offer early warning of dangerous contaminants. However, current sensor system design is mostly by intuition and experience rather than by systematic design. To develop a sensor system design methodology, the proper selection of an indoor airflow model is needed. Various indoor airflow models exist in the literature, from complex computational fluid dynamics (CFD) to simpler approaches such as multizone and zonal models. Airflow models provide the contaminant concentration data, to which an optimization method can be applied to design sensor systems. The authors utilized a subzonal modeling approach when using a multizone model and were the first to utilize a zonal model for systematic sensor system design. The objective of the study was to examine whether or not data from a simpler airflow model could be used to design sensor systems capable of performing just as well as those designed using data from more complex CFD models. Three test environments, a small office, a large hall, and an office suite were examined. Results showed that when a unique sensor system design was not needed, sensor systems designed using data from simpler airflow models could perform just as well as those designed using CFD data. Further, only for the small office did the common engineering sensor system design practice of placing a sensor at the exhaust result in sensor system performance that was equivalent to one designed using CFD data. (author)

  1. Coupling fast fluid dynamics and multizone airflow models in Modelica Buildings library to simulate the dynamics of HVAC systems

    Energy Technology Data Exchange (ETDEWEB)

    Tian, Wei [Univ. of Miami, FL (United States). Dept. of Civil, Architectural and Environmental Engineering; Sevilla, Thomas Alonso [Univ. of Miami, FL (United States). Dept. of Civil, Architectural and Environmental Engineering; Zuo, Wangda [Univ. of Miami, FL (United States). Dept. of Civil, Architectural and Environmental Engineering; Sohn, Michael D. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Analysis and Environmental Impacts Div.

    2017-06-08

    Historically, multizone models are widely used in building airflow and energy performance simulations due to their fast computing speed. However, multizone models assume that the air in a room is well mixed, consequently limiting their application. In specific rooms where this assumption fails, the use of computational fluid dynamics (CFD) models may be an alternative option. Previous research has mainly focused on coupling CFD models and multizone models to study airflow in large spaces. While significant, most of these analyses did not consider the coupled simulation of the building airflow with the building's Heating, Ventilation, and Air-Conditioning (HVAC) systems. This paper tries to fill the gap by integrating the models for HVAC systems with coupled multizone and CFD simulations for airflows, using the Modelica simul ation platform. To improve the computational efficiency, we incorporated a simplified CFD model named fast fluid dynamics (FFD). We first introduce the data synchronization strategy and implementation in Modelica. Then, we verify the implementation using two case studies involving an isothermal and a non-isothermal flow by comparing model simulations to experiment data. Afterward, we study another three cases that are deemed more realistic. This is done by attaching a variable air volume (VAV) terminal box and a VAV system to previous flows to assess the capability of the models in studying the dynamic control of HVAC systems. Finally, we discuss further research needs on the coupled simulation using the models.

  2. STUDY OF USING CANON 1000D DIGITAL CAMERA FOR MULTIZONE PHOTOGRAPHY WITH SPATIALLY-RESOLVED SPECTRAL DEVICES

    Directory of Open Access Journals (Sweden)

    K. N. Kaplevskiy

    2013-01-01

    Full Text Available The possibility of use a CANON 1000D digital camera for multizone photography is demonstrated. It is found that a dynamic range of the recorded light intensities is varied from 260 to 3650 quantization levels of the ADC. Linearity of the light-sensitive element of the camera has been studied in dependence on its illumination and exposure time.

  3. Benchmarking of a Markov multizone model of contaminant transport.

    Science.gov (United States)

    Jones, Rachael M; Nicas, Mark

    2014-10-01

    A Markov chain model previously applied to the simulation of advection and diffusion process of gaseous contaminants is extended to three-dimensional transport of particulates in indoor environments. The model framework and assumptions are described. The performance of the Markov model is benchmarked against simple conventional models of contaminant transport. The Markov model is able to replicate elutriation predictions of particle deposition with distance from a point source, and the stirred settling of respirable particles. Comparisons with turbulent eddy diffusion models indicate that the Markov model exhibits numerical diffusion in the first seconds after release, but over time accurately predicts mean lateral dispersion. The Markov model exhibits some instability with grid length aspect when turbulence is incorporated by way of the turbulent diffusion coefficient, and advection is present. However, the magnitude of prediction error may be tolerable for some applications and can be avoided by incorporating turbulence by way of fluctuating velocity (e.g. turbulence intensity). © The Author 2014. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

  4. Self-assembly of graft polyurethanes having both crystallizable poly({epsilon}-caprolactone) blocks and soft poly(n-butyl acrylate) segments

    Energy Technology Data Exchange (ETDEWEB)

    Ibarboure, E.; Baron, A.; Papon, E. [Laboratoire de Chimie des Polymeres Organiques (LCPO), CNRS, Universite Bordeaux I. 16, Avenue Pey Berland, 33607, Pessac-Cedex (France); Rodriguez-Hernandez, J., E-mail: jrodriguez@enscpb.f [Laboratoire de Chimie des Polymeres Organiques (LCPO), CNRS, Universite Bordeaux I. 16, Avenue Pey Berland, 33607, Pessac-Cedex (France)

    2009-04-02

    We report the self-assembly behavior of graft polyurethanes combining in its structure soft lateral poly(n-butyl acrylate) (PnBuA) chains with rigid and crystallizable polycaprolactone (PCL) segments. Segmented polyurethanes microphase separated into high-glass transition temperature PCL hard and low-glass transition temperature PnBuA soft domains. The variation of the microstructure as a function of the hard segment content (ratio hard to soft segments) within the structure has been studied by using atomic force microscopy. Additionally, the crystallization mechanism appeared to be directly related to the properties of the substrates forming parallel lamellar structures on hydrophilic substrates and perpendicular lamellae with hydrophobic substrates.

  5. An Extended Multi-Zone Model for the MCG-6-30-15 Warm Absorber

    Science.gov (United States)

    Morales, R.; Fabian, A. C.; Reynolds, C. S.

    2000-01-01

    The variable warm absorber seen with ASCA in the X-ray spectrum of MCG 6-30-15 shows complex time behaviour in which the optical depth of O VIII anticorrelates with the flux whereas that of O VII is unchanging. The explanation in terms of a two zone absorber has since been challenged by BeppoSAX observations. These present a more complicated behaviour for the O VII edge. The explanation we offer for both ASCA and BeppoSAX observations requires a very simple photoionization model together with the presence of a third, intermediate, zone and a period of very low luminosity. In practice warm absorbers are likely to be extended, multi-zone regions of which only part causes directly observable absorption edges at any given time depending on the value of the luminosity.

  6. The Demand Side Response to Multi-zone Tariffs. Consumer Test Results

    Directory of Open Access Journals (Sweden)

    Adam Olszewski

    2015-12-01

    Full Text Available Advanced Metering Infrastructure (AMI is a technologically advanced solution currently implemented by the most innovative distribution system operators. ENERGA-OPERATOR SA set about preparing for smart metering implementation in 2010. So far the company has installed over 400,000 meters in its area, and plans to install a further 450,000 in 2015. Kalisz, the first fully AMI-covered city in Poland, was chosen for an in-depth analysis of the system. In particular, a consumer test was conducted there with the intention of answering the question about the strength of the demand side response to multi-zone tariffs and power reduction. Conclusions from the year-long test show the demand side response to multi-zone tariffs – i.e. the maximum temporary percentage reduction of energy consumption in the time zone with the tariff raised by a min. of 80% – stays within the 5–15% range. In the case of power reduction (the maximum temporary reduction of energy consumption in the time zone when the power available to a household is limited to 1 kW – the demand side response stays within the 10–30% range. An additional effect of tariff diversification and smart metering is a reduction in electricity consumption by 1–4% on working days (i.e. this is the effect of either the consumption reduction or shifting it to weekends. During the test energy consumers were subjected to both price incentives and education. Due to the fact that it is difficult to separate the effects of education and tariff structures, the company plans to continue the research related to verifying the effectiveness of individual activation tools in reducing electricity consumption by households.

  7. An optimized chemical kinetic mechanism for HCCI combustion of PRFs using multi-zone model and genetic algorithm

    International Nuclear Information System (INIS)

    Neshat, Elaheh; Saray, Rahim Khoshbakhti

    2015-01-01

    Highlights: • A new chemical kinetic mechanism for PRFs HCCI combustion is developed. • New mechanism optimization is performed using genetic algorithm and multi-zone model. • Engine-related combustion and performance parameters are predicted accurately. • Engine unburned HC and CO emissions are predicted by the model properly. - Abstract: Development of comprehensive chemical kinetic mechanisms is required for HCCI combustion and emissions prediction to be used in engine development. The main purpose of this study is development of a new chemical kinetic mechanism for primary reference fuels (PRFs) HCCI combustion, which can be applied to combustion models to predict in-cylinder pressure and exhaust CO and UHC emissions, accurately. Hence, a multi-zone model is developed for HCCI engine simulation. Two semi-detailed chemical kinetic mechanisms those are suitable for premixed combustion are used for n-heptane and iso-octane HCCI combustion simulation. The iso-octane mechanism contains 84 species and 484 reactions and the n-heptane mechanism contains 57 species and 296 reactions. A simple interaction between iso-octane and n-heptane is considered in new mechanism. The multi-zone model is validated using experimental data for pure n-heptane and iso-octane. A new mechanism is prepared by combination of these two mechanisms for n-heptane and iso-octane blended fuel, which includes 101 species and 594 reactions. New mechanism optimization is performed using genetic algorithm and multi-zone model. Mechanism contains low temperature heat release region, which decreases with increasing octane number. The results showed that the optimized chemical kinetic mechanism is capable of predicting engine-related combustion and performance parameters. Also after implementing the optimized mechanism, engine unburned HC and CO emissions predicted by the model are in good agreement with the corresponding experimental data

  8. Availability analysis of a syngas fueled spark ignition engine using a multi-zone combustion model

    International Nuclear Information System (INIS)

    Rakopoulos, C.D.; Michos, C.N.; Giakoumis, E.G.

    2008-01-01

    A previously developed and validated zero-dimensional, multi-zone, thermodynamic combustion model for the prediction of spark ignition (SI) engine performance and nitric oxide (NO) emissions has been extended to include second-law analysis. The main characteristic of the model is the division of the burned gas into several distinct zones, in order to account for the temperature and chemical species stratification developed in the burned gas during combustion. Within the framework of the multi-zone model, the various availability components constituting the total availability of each of the multiple zones of the simulation are identified and calculated separately. The model is applied to a multi-cylinder, four-stroke, turbocharged and aftercooled, natural gas (NG) SI gas engine running on synthesis gas (syngas) fuel. The major part of the unburned mixture availability consists of the chemical contribution, ranging from 98% at the inlet valve closing (IVC) event to 83% at the ignition timing of the total availability for the 100% load case, which is due to the presence of the combustible fuel. On the contrary, the multiple burned zones possess mainly thermomechanical availability. Specifically, again for the 100% load case, the total availability of the first burned zone at the exhaust valve opening (EVO) event consists of thermomechanical availability approximately by 90%, with similar percentages for all other burned zones. Two definitions of the combustion exergetic efficiency are used to explore the degree of reversibility of the combustion process in each of the multiple burned zones. It is revealed that the crucial factor determining the thermodynamic perfection of combustion in each burned zone is the level of the temperatures at which combustion occurs in the zone, with minor influence of the whole temperature history of the zone during the complete combustion phase. The availability analysis is extended to various engine loads. The engine in question is

  9. Shape-memory properties of magnetically active triple-shape nanocomposites based on a grafted polymer network with two crystallizable switching segments

    Directory of Open Access Journals (Sweden)

    A. Lendlein

    2012-01-01

    Full Text Available Thermo-sensitive shape-memory polymers (SMP, which are capable of memorizing two or more different shapes, have generated significant research and technological interest. A triple-shape effect (TSE of SMP can be activated e.g. by increasing the environmental temperature (Tenv, whereby two switching temperatures (Tsw have to be exceeded to enable the subsequent shape changes from shape (A to shape (B and finally the original shape (C. In this work, we explored the thermally and magnetically initiated shape-memory properties of triple-shape nanocomposites with various compositions and particle contents using different shape-memory creation procedures (SMCP. The nanocomposites were prepared by the incorporation of magnetite nanoparticles into a multiphase polymer network matrix with grafted polymer network architecture containing crystallizable poly(ethylene glycol (PEG side chains and poly(ε-caprolactone (PCL crosslinks named CLEGC. Excellent triple-shape properties were achieved for nanocomposites with high PEG weight fraction when two-step programming procedures were applied. In contrast, single-step programming resulted in dual-shape properties for all investigated materials as here the temporary shape (A was predominantly fixed by PCL crystallites.

  10. GAMMA RAYS FROM THE TYCHO SUPERNOVA REMNANT: MULTI-ZONE VERSUS SINGLE-ZONE MODELING

    Energy Technology Data Exchange (ETDEWEB)

    Atoyan, Armen [Department of Mathematics, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Quebec H3G 1M8 (Canada); Dermer, Charles D., E-mail: atoyan@mathstat.concordia.ca, E-mail: charles.dermer@nrl.navy.mil [Code 7653, Naval Research Laboratory, Washington, DC 20375-5352 (United States)

    2012-04-20

    Recent Fermi and VERITAS observations of the prototypical Type Ia supernova remnant (SNR) Tycho have discovered {gamma}-rays with energies E in the range 0.4 GeV {approx}< E {approx}< 10 TeV. Crucial for the theory of Galactic cosmic-ray origin is whether the {gamma}-rays from SNRs are produced by accelerated hadrons (protons and ions) or by relativistic electrons. Here we show that strong constraints on the leptonic model imposed in the framework of the commonly used single-zone model are essentially removed if the analysis of the broadband radiation spectrum of Tycho is done in the two-zone (or, in general, multi-zone) approach, which is likely to apply to every SNR. Importantly, we show that the single-zone approach may underpredict the {gamma}-ray fluxes by an order of magnitude. A hadronic model can, however, also fit the detected {gamma}-ray spectrum. The difference between {gamma}-ray fluxes of hadronic and leptonic origins becomes significant only at {approx}<300 MeV, which could be revealed by spectral measurements of Tycho and other SNRs at these energies.

  11. Large scale multi-zone creep finite element modelling of a main steam line branch intersection

    International Nuclear Information System (INIS)

    Payten, Warwick

    2006-01-01

    A number of papers detail the non-linear creep finite element analysis of branch pieces. Predominately these models have incorporated only a single material zone representing the parent material. Multi-zone models incorporating weld material and heat affected zones have primarily been two-dimensional analyses, in part due to the large number of elements required to adequately represent all of the zones. This paper describes a non-linear creep analysis of a main steam line branch intersection using creep properties to represent the parent metal, weld metal, and heat affected zone (HAZ), the stress redistribution over 100,000 h is examined. The results show that the redistribution leads to a complex stress state, particularly at the heat affected zone. Although, there is damage on the external surface of the branch piece as expected, the results indicate that the damage would be more widespread through extensive sections of the heat affected zone. This would appear to indicate that the time between damage indications on the surface using techniques such as replication and full thickness damage may be more limited then previously expected

  12. New hybrid genetic particle swarm optimization algorithm to design multi-zone binary filter.

    Science.gov (United States)

    Lin, Jie; Zhao, Hongyang; Ma, Yuan; Tan, Jiubin; Jin, Peng

    2016-05-16

    The binary phase filters have been used to achieve an optical needle with small lateral size. Designing a binary phase filter is still a scientific challenge in such fields. In this paper, a hybrid genetic particle swarm optimization (HGPSO) algorithm is proposed to design the binary phase filter. The HGPSO algorithm includes self-adaptive parameters, recombination and mutation operations that originated from the genetic algorithm. Based on the benchmark test, the HGPSO algorithm has achieved global optimization and fast convergence. In an easy-to-perform optimizing procedure, the iteration number of HGPSO is decreased to about a quarter of the original particle swarm optimization process. A multi-zone binary phase filter is designed by using the HGPSO. The long depth of focus and high resolution are achieved simultaneously, where the depth of focus and focal spot transverse size are 6.05λ and 0.41λ, respectively. Therefore, the proposed HGPSO can be applied to the optimization of filter with multiple parameters.

  13. Predicting self-pollution inside school buses using a CFD and multi-zone coupled model

    Science.gov (United States)

    Li, Fei; Lee, Eon S.; Liu, Junjie; Zhu, Yifang

    2015-04-01

    The in-cabin environment of a school bus is important for children's health. The pollutants from a bus's own exhaust contribute to children's overall exposure to air pollutants inside the school bus cabin. In this study, we adapted a coupled model originally developed for indoor environment to determine the relative contribution of the bus own exhaust to the in-cabin pollutant concentrations. The coupled model uses CFD (computational fluent dynamics) model to simulate outside concentration and CONTAM (a multi-zone model) for inside the school bus. The model was validated with experimental data in the literature. Using the validated model, we analyzed the effects of vehicle speed and tailpipe location on self-pollution inside the bus cabin. We confirmed that the pollution released from the tailpipe can penetrate into the bus cabin through gaps in the back emergency door. We found the pollution concentration inside school buses was the highest when buses were driven at a medium speed. In addition, locating the tailpipe on the side, behind the rear axle resulted in less self-pollution since there is less time for the suction effect to take place. The developed theoretical framework can be generalized to study other types of buses. These findings can be used in developing policy recommendations for reducing human exposure to air pollution inside buses.

  14. MULTI-ZONE ANTIREFLECTION COATING ON A SUBSTRATE MADE OF OPTICAL ZINC SULPHIDE

    Directory of Open Access Journals (Sweden)

    T. D. Tan

    2014-01-01

    Full Text Available The paper deals with creation technique for a multi-zone antireflection coating on a substrate made of the optical zinc sulphide ZnS. The coating effectively operates simultaneously in the following spectral ranges: visible region of 450 - 700 nm, in the near infrared region of 1000 - 1100 nm, at the wavelength of 1.55 μm, and in the mid-infrared (IR spectrum of 3 - 5 microns. Reflection coefficient in the range of 450 - 700 nm is not more than 2%, in the range of 1000 - 1100 nm is less than 0.5%, in the range of 1500 - 1700 nm is close to 1.5% and in the range of 3 - 5 μm is equal to 0.6%. Analysis results of the deviation impact in the thickness of layers on the value changing of the energy reflection coefficient in the considered areas are given. Deviation in the thickness of the layer, contiguous with the air, is shown to have the greatest effect on the spectral characteristics of the obtained coating. Refractive index deviation for this layer influences the magnitude of the residual reflection.

  15. Dynamic Model of Basic Oxygen Steelmaking Process Based on Multizone Reaction Kinetics: Modeling of Decarburization

    Science.gov (United States)

    Rout, Bapin Kumar; Brooks, Geoffrey; Akbar Rhamdhani, M.; Li, Zushu; Schrama, Frank N. H.; Overbosch, Aart

    2018-03-01

    In a previous study by the authors (Rout et al. in Metall Mater Trans B 49:537-557, 2018), a dynamic model for the BOF, employing the concept of multizone kinetics was developed. In the current study, the kinetics of decarburization reaction is investigated. The jet impact and slag-metal emulsion zones were identified to be primary zones for carbon oxidation. The dynamic parameters in the rate equation of decarburization such as residence time of metal drops in the emulsion, interfacial area evolution, initial size, and the effects of surface-active oxides have been included in the kinetic rate equation of the metal droplet. A modified mass-transfer coefficient based on the ideal Langmuir adsorption equilibrium has been proposed to take into account the surface blockage effects of SiO2 and P2O5 in slag on the decarburization kinetics of a metal droplet in the emulsion. Further, a size distribution function has been included in the rate equation to evaluate the effect of droplet size on reaction kinetics. The mathematical simulation indicates that decarburization of the droplet in the emulsion is a strong function of the initial size and residence time. A modified droplet generation rate proposed previously by the authors has been used to estimate the total decarburization rate by slag-metal emulsion. The model's prediction shows that about 76 pct of total carbon is removed by reactions in the emulsion, and the remaining is removed by reactions at the jet impact zone. The predicted bath carbon by the model has been found to be in good agreement with the industrially measured data.

  16. Global analysis of the temperature and flow fields in samples heated in multizone resistance furnaces

    Science.gov (United States)

    Pérez-Grande, I.; Rivas, D.; de Pablo, V.

    The temperature field in samples heated in multizone resistance furnaces will be analyzed, using a global model where the temperature fields in the sample, the furnace and the insulation are coupled; the input thermal data is the electric power supplied to the heaters. The radiation heat exchange between the sample and the furnace is formulated analytically, taking into account specular reflections at the sample; for the solid sample the reflectance is both diffuse and specular, and for the melt it is mostly specular. This behavior is modeled through the exchange view factors, which depend on whether the sample is solid or liquid, and, therefore, they are not known a priori. The effect of this specular behavior in the temperature field will be analyzed, by comparing with the case of diffuse samples. A parameter of great importance is the thermal conductivity of the insulation material; it will be shown that the temperature field depends strongly on it. A careful characterization of the insulation is therefore necessary, here it will be done with the aid of experimental results, which will also serve to validate the model. The heating process in the floating-zone technique in microgravity conditions will be simulated; parameters like the Marangoni number or the temperature gradient at the melt-crystal interface will be estimated. Application to the case of compound samples (graphite-silicon-graphite) will be made; the temperature distribution in the silicon part will be studied, especially the temperature difference between the two graphite rods that hold the silicon, since it drives the thermocapillary flow in the melt. This flow will be studied, after coupling the previous model with the convective effects. The possibility of suppresing this flow by the controlled vibration of the graphite rods will be also analyzed. Numerical results show that the thermocapillary flow can indeed be counterbalanced quite effectively.

  17. Dynamic Model of Basic Oxygen Steelmaking Process Based on Multizone Reaction Kinetics: Modeling of Decarburization

    Science.gov (United States)

    Rout, Bapin Kumar; Brooks, Geoffrey; Akbar Rhamdhani, M.; Li, Zushu; Schrama, Frank N. H.; Overbosch, Aart

    2018-06-01

    In a previous study by the authors (Rout et al. in Metall Mater Trans B 49:537-557, 2018), a dynamic model for the BOF, employing the concept of multizone kinetics was developed. In the current study, the kinetics of decarburization reaction is investigated. The jet impact and slag-metal emulsion zones were identified to be primary zones for carbon oxidation. The dynamic parameters in the rate equation of decarburization such as residence time of metal drops in the emulsion, interfacial area evolution, initial size, and the effects of surface-active oxides have been included in the kinetic rate equation of the metal droplet. A modified mass-transfer coefficient based on the ideal Langmuir adsorption equilibrium has been proposed to take into account the surface blockage effects of SiO2 and P2O5 in slag on the decarburization kinetics of a metal droplet in the emulsion. Further, a size distribution function has been included in the rate equation to evaluate the effect of droplet size on reaction kinetics. The mathematical simulation indicates that decarburization of the droplet in the emulsion is a strong function of the initial size and residence time. A modified droplet generation rate proposed previously by the authors has been used to estimate the total decarburization rate by slag-metal emulsion. The model's prediction shows that about 76 pct of total carbon is removed by reactions in the emulsion, and the remaining is removed by reactions at the jet impact zone. The predicted bath carbon by the model has been found to be in good agreement with the industrially measured data.

  18. Hygro-thermo-aeraulic modeling of multi-zone buildings. Proposal of a strategy for the resolution of the coupled system; Modelisation hygro-thermo-aeraulique des batiments multizones. Proposition d'une strategie de resolution du systeme couple

    Energy Technology Data Exchange (ETDEWEB)

    Woloszyn-Vallon, M.

    1999-11-01

    The two criteria necessary for the thermal design of buildings - user's comfort and energy efficiency - can lead to contradictory recommendations. In the analyses of both aspects, air moisture content can be an important factor. However, in most existing computer software, moisture is either neglected or represented in a very simplified way. Often only the airborne moisture is represented and the interaction with hygroscopic materials is neglected. We are interested hare in the construction of a comprehensive and reliable tool, able to analyse moisture propagation in a multizone space. All physical phenomena important for correct description of the reality should be integrated. The numerical reliability of the tool should also be ensured in order to enable its industrial use. The results of this work will be applied to CLIM2000, a modular building simulation environment developed by EDF (French Electricity Company). Moisture propagation in a multizone space is a complex phenomenon, especially if the interaction with energy and airflow is represented. However, at the scale of a complete building, four main elements can be distinguished: airborne moisture transport; vapour condensation on cold surface and in the air volume; vapour absorption by hygroscopic materials; sources of vapour (metabolism, housekeeping). In respect to the hypothesis of a multizone model, a consistent set of mathematical models is elaborated. Full interaction among moisture, energy and airflow is represented, enabling simulations of the integrated moisture-energy-airflow behaviour of a multizone building. In order to verify the ability of the proposed model to represent the real situations, its predictions are compared to experimental data. The data were obtained in a fully furnished test house belonging to Building Research Establishment (UK). This experimentation permits analysis of moisture spread in the house and especially the importance of the airborne transport and the influence of

  19. Integration of eaves and shading devices for improving the thermal comfort in a multi-zone building

    Directory of Open Access Journals (Sweden)

    Haddam Muhammad Abdalkhalaq Chuayb

    2015-01-01

    Full Text Available This paper introduces a new approach to the description and modelling of multi-zone buildings in Saharan climate. Therefore, nodal method was used to apprehend thermo-aeraulic behavior of air subjected to varied solicitations. A coupling was made between equations proposed by P. Rumianowski and some equations of a building thermal energy model found in the TRNSYS user manual. Runge-Kutta fourth order numerical method was used to solve the obtained system of differential equations. Theses results show that proper design of passive houses in an arid region is based on the control of direct solar gains, temperatures and specific humidities. According to the compactness index, the insersion of solar shading and eaves can provide improved thermo-aeraulic comfort.

  20. A Method for Optimal Load Dispatch of a Multi-zone Power System with Zonal Exchange Constraints

    Science.gov (United States)

    Hazarika, Durlav; Das, Ranjay

    2018-04-01

    This paper presented a method for economic generation scheduling of a multi-zone power system having inter zonal operational constraints. For this purpose, the generator rescheduling for a multi area power system having inter zonal operational constraints has been represented as a two step optimal generation scheduling problem. At first, the optimal generation scheduling has been carried out for the zone having surplus or deficient generation with proper spinning reserve using co-ordination equation. The power exchange required for the deficit zones and zones having no generation are estimated based on load demand and generation for the zone. The incremental transmission loss formulas for the transmission lines participating in the power transfer process among the zones are formulated. Using these, incremental transmission loss expression in co-ordination equation, the optimal generation scheduling for the zonal exchange has been determined. Simulation is carried out on IEEE 118 bus test system to examine the applicability and validity of the method.

  1. Review of Literature on Terminal Box Control, Occupancy Sensing Technology and Multi-zone Demand Control Ventilation (DCV)

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Guopeng; Dasu, Aravind R.; Zhang, Jian

    2012-03-01

    This report presents an overall review of the standard requirement, the terminal box control, occupancy sensing technology and DCV. There is system-specific guidance for single-zone systems, but DCV application guidance for multi-zone variable air volume (VAV) systems is not available. No real-world implementation case studies have been found using the CO2-based DCV. The review results also show that the constant minimum air flow set point causes excessive fan power consumption and potential simultaneous heating and cooling. Occupancy-based control (OBC) is needed for the terminal box in order to achieve deep energy savings. Key to OBC is a technology for sensing the actual occupancy of the zone served in real time. Several technologies show promise, but none currently fully meets the need with adequate accuracy and sufficiently low cost.

  2. Effect of Hydrogen Addition on Methane HCCI Engine Ignition Timing and Emissions Using a Multi-zone Model

    Science.gov (United States)

    Wang, Zi-han; Wang, Chun-mei; Tang, Hua-xin; Zuo, Cheng-ji; Xu, Hong-ming

    2009-06-01

    Ignition timing control is of great importance in homogeneous charge compression ignition engines. The effect of hydrogen addition on methane combustion was investigated using a CHEMKIN multi-zone model. Results show that hydrogen addition advances ignition timing and enhances peak pressure and temperature. A brief analysis of chemical kinetics of methane blending hydrogen is also performed in order to investigate the scope of its application, and the analysis suggests that OH radical plays an important role in the oxidation. Hydrogen addition increases NOx while decreasing HC and CO emissions. Exhaust gas recirculation (EGR) also advances ignition timing; however, its effects on emissions are generally the opposite. By adjusting the hydrogen addition and EGR rate, the ignition timing can be regulated with a low emission level. Investigation into zones suggests that NOx is mostly formed in core zones while HC and CO mostly originate in the crevice and the quench layer.

  3. Dynamic Model of Basic Oxygen Steelmaking Process Based on Multi-zone Reaction Kinetics: Model Derivation and Validation

    Science.gov (United States)

    Rout, Bapin Kumar; Brooks, Geoff; Rhamdhani, M. Akbar; Li, Zushu; Schrama, Frank N. H.; Sun, Jianjun

    2018-04-01

    A multi-zone kinetic model coupled with a dynamic slag generation model was developed for the simulation of hot metal and slag composition during the basic oxygen furnace (BOF) operation. The three reaction zones (i) jet impact zone, (ii) slag-bulk metal zone, (iii) slag-metal-gas emulsion zone were considered for the calculation of overall refining kinetics. In the rate equations, the transient rate parameters were mathematically described as a function of process variables. A micro and macroscopic rate calculation methodology (micro-kinetics and macro-kinetics) were developed to estimate the total refining contributed by the recirculating metal droplets through the slag-metal emulsion zone. The micro-kinetics involves developing the rate equation for individual droplets in the emulsion. The mathematical models for the size distribution of initial droplets, kinetics of simultaneous refining of elements, the residence time in the emulsion, and dynamic interfacial area change were established in the micro-kinetic model. In the macro-kinetics calculation, a droplet generation model was employed and the total amount of refining by emulsion was calculated by summing the refining from the entire population of returning droplets. A dynamic FetO generation model based on oxygen mass balance was developed and coupled with the multi-zone kinetic model. The effect of post-combustion on the evolution of slag and metal composition was investigated. The model was applied to a 200-ton top blowing converter and the simulated value of metal and slag was found to be in good agreement with the measured data. The post-combustion ratio was found to be an important factor in controlling FetO content in the slag and the kinetics of Mn and P in a BOF process.

  4. Multi-zone modeling of combustion and emissions formation in DI diesel engine operating on ethanol-diesel fuel blends

    International Nuclear Information System (INIS)

    Rakopoulos, C.D.; Antonopoulos, K.A.; Rakopoulos, D.C.; Hountalas, D.T.

    2008-01-01

    A multi-zone model for calculation of the closed cycle of a direct injection (DI) diesel engine is applied for the interesting case of its operation with ethanol-diesel fuel blends, the ethanol (bio-fuel) being considered recently as a promising extender to petroleum distillates. Although there are many experimental studies, there is an apparent scarcity of theoretical models scrutinizing the formation mechanisms of combustion generated emissions when using bio-fuels. This is a two dimensional, multi-zone model with the issuing fuel jets divided into several discrete volumes, called 'zones', formed along and across the direction of the fuel injection. The model follows each zone, with its own time history, as the spray penetrates into the swirling air environment of the combustion chamber. Droplet evaporation and jet mixing models are used to determine the amount of fuel and entrained air in each zone available for combustion. The mass, energy and state equations are applied in each zone to provide local temperatures and cylinder pressure histories. The concentrations of the various constituents are calculated by adopting a chemical equilibrium scheme for the C-H-O-N system of eleven species considered, together with chemical rate equations for calculation of nitric oxide (NO) and a model for net soot formation. The results from the computer program, implementing the analysis, for the in cylinder pressure, exhaust NO concentration and soot density compare well with the corresponding measurements from an experimental investigation conducted on a fully automated test bed, standard 'Hydra', DI diesel engine located at the authors' laboratory, which is operated with ethanol-diesel fuel blends containing 5%, 10% and 15% (by vol.) ethanol. Iso-contour plots of equivalence ratio, temperature, NO and soot inside the cylinder at various instants of time, when using these ethanol-diesel fuel blends against the diesel fuel (baseline fuel), shed light on the mechanisms

  5. Evaluation of a Semiempirical, Zero-Dimensional, Multizone Model to Predict Nitric Oxide Emissions in DI Diesel Engines’ Combustion Chamber

    Directory of Open Access Journals (Sweden)

    Nicholas S. Savva

    2016-01-01

    Full Text Available In the present study, a semiempirical, zero-dimensional multizone model, developed by the authors, is implemented on two automotive diesel engines, a heavy-duty truck engine and a light-duty passenger car engine with pilot fuel injection, for various operating conditions including variation of power/speed, EGR rate, fuel injection timing, fuel injection pressure, and boost pressure, to verify its capability for Nitric Oxide (NO emission prediction. The model utilizes cylinder’s basic geometry and engine operating data and measured cylinder pressure to estimate the apparent combustion rate which is then discretized into burning zones according to the calculation step used. The requisite unburnt charge for the combustion in the zones is calculated using the zone equivalence ratio provided from a new empirical formula involving parameters derived from the processing of the measured cylinder pressure and typical engine operating parameters. For the calculation of NO formation, the extended Zeldovich mechanism is used. From this approach, the model is able to provide the evolution of NO formation inside each burned zone and, cumulatively, the cylinder’s NO formation history. As proven from the investigation conducted herein, the proposed model adequately predicts NO emissions and NO trends when the engine settings vary, with low computational cost. These encourage its use for engine control optimization regarding NOx abatement and real-time/model-based NOx control applications.

  6. A Study on a Control Method with a Ventilation Requirement of a VAV System in Multi-Zone

    Directory of Open Access Journals (Sweden)

    Hyo-Jun Kim

    2017-11-01

    Full Text Available The objective of this study was to propose a control method with a ventilation requirement of variable air volume (VAV system in multi-zone. In order to control the VAV system inmulti-zone, it is essential to control the terminal unit installed in each zone. A VAV terminal unit with conventional control method using a fixed minimum air flow can cause indoor air quality (IAQ issues depending on the variation in the number of occupants. This research proposes a control method with a ventilation requirement of the VAV terminal unit and AHU inmulti-zone. The integrated control method with an air flow increase model in the VAV terminal unit, AHU, and outdoor air intake rate increase model in the AHU was based on the indoor CO2 concentration. The conventional and proposed control algorithms were compared through a TRNSYS simulation program. The proposed VAV terminal unit control method satisfies all the conditions of indoor temperature, IAQ, and stratification. An energy comparison with the conventional control method showed that the method satisfies not only the indoor thermal comfort, IAQ, and stratification issue, but also reduces the energy consumption.

  7. Design architecture for multi-zone HVAC control systems from existing single-zone systems using wireless sensor networks

    Science.gov (United States)

    Redfern, Andrew; Koplow, Michael; Wright, Paul

    2007-01-01

    Most residential heating, ventilating, and air-conditioning (HVAC) systems utilize a single zone for conditioning air throughout the entire house. While inexpensive, these systems lead to wide temperature distributions and inefficient cooling due to the difference in thermal loads in different rooms. The end result is additional cost to the end user because the house is over conditioned. To reduce the total amount of energy used in a home and to increase occupant comfort there is a need for a better control system using multiple temperature zones. Typical multi-zone systems are costly and require extensive infrastructure to function. Recent advances in wireless sensor networks (WSNs) have enabled a low cost drop-in wireless vent register control system. The register control system is controlled by a master controller unit, which collects sensor data from a distributed wireless sensor network. Each sensor node samples local settings (occupancy, light, humidity and temperature) and reports the data back to the master control unit. The master control unit compiles the incoming data and then actuates the vent resisters to control the airflow throughout the house. The control system also utilizes a smart thermostat with a movable set point to enable the user to define their given comfort levels. The new system can reduce the run time of the HVAC system and thus decreasing the amount of energy used and increasing the comfort of the home occupations.

  8. Statistical data analysis method for multi-zonal airflow measurement using multiple kinds of perfluorocarbon tracer gas

    Energy Technology Data Exchange (ETDEWEB)

    Okuyama, Hiroyasu; Onishi, Yoshinori [Institute of Technology, Shimizu Corporation, 4-17, Etchujima 3-chome, Koto-ku, Tokyo 135-8530 (Japan); Tanabe, Shin-ichi [School of Science and Engineering, Department of Architecture, Waseda University, 3-4-1 Okubo, Shinjyuku-ku, Tokyo 169-8555 (Japan); Kashihara, Seiichi [R and D Laboratories, Asahi Kasei Homes Corporation, 2-1, Samejima Fuji-shi, Shizuoka 416-8501 (Japan)

    2009-03-15

    Conventional multi-zonal ventilation measurement methods by multiple types of perfluorocarbon tracers use a number of different gases equal to the number of zones (n). The possible n x n+n airflows are estimated from the mass balance of the gases and the airflow balance. However, some airflows may not occur because of inter-zonal geometry, and the introduction of unnecessary, unknown parameters can impair the accuracy of the estimation. Also, various error factors often yield an irrational negative airflow rate. Conventional methods are insufficient for the evaluation of error. This study describes a way of using the least-squares technique to improve the precision of estimation and to evaluate reliability. From the equations' residual, the error variance-covariance matrix {lambda}{sub q} of the estimated airflow rate error is deduced. In addition, the coefficient of determinant using the residual sum of squares and total variation is introduced. Furthermore, the error matrix{sub m}{lambda}{sub q} from the measurement errors in the gas concentration and gas emission rate is deduced. The discrepancy ratio of the model premises is defined by dividing the diagonal elements of the former by those of the latter. Moreover, the index of irrationality of the estimated negative airflow rate is defined, based on the different results of the three estimation methods. Some numerical experiments are also carried out to verify the flow rate estimation and the reliability evaluation theory. (author)

  9. Improved Titanium Billet Inspection Sensitivity through Optimized Phased Array Design, Part II: Experimental Validation and Comparative Study with Multizone

    International Nuclear Information System (INIS)

    Hassan, W.; Vensel, F.; Knowles, B.; Lupien, V.

    2006-01-01

    The inspection of critical rotating components of aircraft engines has made important advances over the last decade. The development of Phased Array (PA) inspection capability for billet and forging materials used in the manufacturing of critical engine rotating components has been a priority for Honeywell Aerospace. The demonstration of improved PA inspection system sensitivity over what is currently used at the inspection houses is a critical step in the development of this technology and its introduction to the supply base as a production inspection. As described in Part I (in these proceedings), a new phased array transducer was designed and manufactured for optimal inspection of eight inch diameter Ti-6Al-4V billets. After confirming that the transducer was manufactured in accordance with the design specifications a validation study was conducted to assess the sensitivity improvement of the PAI over the current capability of Multi-zone (MZ) inspection. The results of this study confirm the significant (≅ 6 dB in FBH number sign sensitivity) improvement of the PAI sensitivity over that of MZI

  10. Development and validation of a multi-zone combustion model for performance and nitric oxide formation in syngas fueled spark ignition engine

    International Nuclear Information System (INIS)

    Rakopoulos, C.D.; Michos, C.N.

    2008-01-01

    The development of a zero-dimensional, multi-zone combustion model is presented for predicting the performance and nitric oxide (NO) emissions of a spark ignition (SI) engine. The model is validated against experimental data from a multi-cylinder, four-stroke, turbocharged and aftercooled, SI gas engine running with syngas fuel. This alternative fuel, the combustible part of which consists mainly of CO and H 2 with the rest containing non-combustible gases, has been recently identified as a promising substitute of fossil fuels in view of environmentally friendly engine operation. The basic concept of the model is the division of the burned gas into several distinct zones, unlike the simpler two-zone models, for taking into account the temperature stratification of the burned mixture during combustion. This is especially important for accurate NO emissions predictions, since NO formation is strongly temperature dependent. The multi-zone formulation provides the chemical species concentrations gradient existing in the burned zones, as well as the relative contribution of each burned zone to the total in-cylinder NO formation. The burning rate required as input to the model is expressed as a Wiebe function, fitted to experimentally derived burn rates. All model's constants are calibrated at one operating point and then kept unchanged. Zone-resolved combustion related information is obtained, assisting in the understanding of the complex phenomena occurring during combustion in SI engines. Combustion characteristics of the lean-burn gas engine tested are provided for the complete load range, aiding the interpretation of its performance and knocking tendency. Computed NO emissions from the multi-zone model for various values of the engine load (i.e. air-fuel ratios) are presented and found to be in good agreement with the respective experimental ones, providing confidence for the predictive capability of the model. The superiority of the multi-zone model over its two

  11. Universe

    CERN Document Server

    2009-01-01

    The Universe, is one book in the Britannica Illustrated Science Library Series that is correlated to the science curriculum in grades 5-8. The Britannica Illustrated Science Library is a visually compelling set that covers earth science, life science, and physical science in 16 volumes.  Created for ages 10 and up, each volume provides an overview on a subject and thoroughly explains it through detailed and powerful graphics-more than 1,000 per volume-that turn complex subjects into information that students can grasp.  Each volume contains a glossary with full definitions for vocabulary help and an index.

  12. Multi-zone modeling of Diesel engine fuel spray development with vegetable oil, bio-diesel or Diesel fuels

    International Nuclear Information System (INIS)

    Rakopoulos, C.D.; Antonopoulos, K.A.; Rakopoulos, D.C.

    2006-01-01

    This work presents a model of fuel sprays development in the cylinders of Diesel engines that is two-dimensional, multi-zone, with the issuing jet (from the nozzle) divided into several discrete volumes, called 'zones', formed along the direction of the fuel injection as well as across it. The model follows each zone, with its own time history, as the spray penetrates into the swirling air environment of the combustion chamber before and after wall impingement. After the jet break up time, a group of droplets is generated in each zone, with the model following their motion during heating, evaporation and mixing with the in-cylinder air. The model is applied for the interesting case of using vegetable oils or their derived bio-diesels as fuels, which recently are considered as promising alternatives to petroleum distillates since they are derived from biological sources. Although there are numerous experimental studies that show curtailment of the emitted smoke with possible increase of the emitted NO x against the use of Diesel fuel, there is an apparent scarcity of theoretical models scrutinizing the formation mechanisms of combustion generated emissions when using these biologically derived fuels. Thus, in the present work, a theoretical detailed model of spray formation is developed that is limited to the related investigation of the physical processes by decoupling it from the chemical effects after combustion initiation. The analysis results show how the widely differing physical properties of these fuels, against the normal Diesel fuel, affect greatly the spray formation and consequently the combustion mechanism and the related emissions

  13. Multiphasic modeling of charged solute transport across articular cartilage: Application of multi-zone finite-bath model.

    Science.gov (United States)

    Arbabi, Vahid; Pouran, Behdad; Weinans, Harrie; Zadpoor, Amir A

    2016-06-14

    Charged and uncharged solutes penetrate through cartilage to maintain the metabolic function of chondrocytes and to possibly restore or further breakdown the cartilage tissue in different stages of osteoarthritis. In this study the transport of charged solutes across the various zones of cartilage was quantified, taken into account the physicochemical interactions between the solute and the cartilage constituents. A multiphasic finite-bath finite element (FE) model was developed to simulate equine cartilage diffusion experiments that used a negatively charged contrast agent (ioxaglate) in combination with serial micro-computed tomography (micro-CT) to measure the diffusion. By comparing the FE model with the experimental data both the diffusion coefficient of ioxaglate and the fixed charge density (FCD) were obtained. In the multiphasic model, cartilage was divided into multiple (three) zones to help understand how diffusion coefficient and FCD vary across cartilage thickness. The direct effects of charged solute-FCD interaction on diffusion were investigated by comparing the diffusion coefficients derived from the multiphasic and biphasic-solute models. We found a relationship between the FCD obtained by the multiphasic model and ioxaglate partitioning obtained from micro-CT experiments. Using our multi-zone multiphasic model, diffusion coefficient of the superficial zone was up to ten-fold higher than that of the middle zone, while the FCD of the middle zone was up to almost two-fold higher than that of the superficial zone. In conclusion, the developed finite-bath multiphasic model provides us with a non-destructive method by which we could obtain both diffusion coefficient and FCD of different cartilage zones. The outcomes of the current work will also help understand how charge of the bath affects the diffusion of a charged molecule and also predict the diffusion behavior of a charged solute across articular cartilage. Copyright © 2016 Elsevier Ltd. All

  14. Multi-zone coupling productivity of horizontal well fracturing with complex fracture networks in shale gas reservoirs

    Directory of Open Access Journals (Sweden)

    Weiyao Zhu

    2018-02-01

    best. Therefore, it is necessary to control fracturing degree reasonably and optimize fracturing parameters, so as to provide a theoretical support for the optimization design of shale gas reservoir fracturing. Keywords: Shale gas, Reservoir, Fracturing, Horizontal well, Complex fracture network, Multi-zone coupling, Multi-scale, Interference, Productivity capacity

  15. gamma. -relaxation process in crystallizable polymers

    Energy Technology Data Exchange (ETDEWEB)

    Mindiyarov, Kh G; Zelenev, Yu V; Bartenev, G M [Birskij Gosudarstvennyj Pedagogicheskij Inst. (USSR)

    1975-07-01

    In the present paper, with the aid of radiothermoluminescence technique ..gamma..-relaxation processes are investigated, which are conditioned by molecular mobility and are associated with defects in the crystalline structure of polymers PEh, PP, and elastomers PIB, NK, SKD, SKI exposed to ..gamma..-rays of Co/sup 60/ at a dose rate of 1 Mrad. The shape of the thermoluminescence curve, i.e. the luminescence intensity in the ..cap alpha.. - ..gamma..-maxima, their relationship, position with respect to temperature are strongly dependent on the degree of crystallinity, on the thermal and mechanical prehistory. In highly crystalline samples of PEh and PP ..cap alpha..-maximum may be absent. Dependence has been studied of the luminescence intensity in the ..cap alpha..- and ..gamma..-maxima (Isub(..cap alpha..)/Isub(..gamma..)) on the crystallization temperature; the curve passes through the minimum when the crystallization rate is maximum. The relationship Isub(..gamma..)re of crystallinity degree.

  16. Development and application of multi-zone model for combustion and pollutants formation in direct injection diesel engine running with vegetable oil or its bio-diesel

    International Nuclear Information System (INIS)

    Rakopoulos, C.D.; Antonopoulos, K.A.; Rakopoulos, D.C.

    2007-01-01

    A multi-zone model for calculation of the closed cycle of a direct injection (DI) Diesel engine is presented and applied for the interesting case of its operation with vegetable oil (cottonseed) or its derived bio-diesel (methyl ester) as fuels, which recently are considered as promising alternatives (bio-fuels) to petroleum distillates. Although there are many experimental studies, there is an apparent scarcity of theoretical models scrutinizing the formation mechanisms of combustion generated emissions when using these fuels. The model is two dimensional, multi-zone with the issuing jets (from the nozzle) divided into several discrete volumes, called 'zones', formed along the direction of the fuel injection and across it. The model follows each zone, with its own time history, as the spray penetrates into the swirling air environment (forming the non-burning zone) of the combustion chamber, before and after wall impingement. Droplet evaporation and jet mixing models are used to determine the amount of fuel and entrained air in each zone available for combustion. The mass, energy and state equations are applied in each zone to yield local temperatures and cylinder pressure histories. The concentrations of the various constituents are calculated by adopting a chemical equilibrium scheme for the C-H-O-N system of 11 species considered, together with the chemical rate equations for the calculation of nitric oxide (NO). A model for evaluation of soot formation and oxidation rates is included. The results from the relevant computer program for the in cylinder pressure, exhaust nitric oxide concentration (NO) and soot density are compared favorably with the corresponding measurements from an experimental investigation conducted on a fully automated test bed, standard 'Hydra', DI Diesel engine installed at the authors' laboratory. Iso-contour plots of equivalence ratio, temperature, NO and soot inside the combustion chamber at various instants of time when using these

  17. In-situ catalytic upgrading of biomass pyrolysis vapor: Co-feeding with methanol in a multi-zone fixed bed reactor

    International Nuclear Information System (INIS)

    Asadieraghi, Masoud; Wan Daud, Wan Mohd Ashri

    2015-01-01

    Highlights: • Aromatics yield improved with increasing H/C eff ratio of the feed. • HZSM-5 catalyst was an effective catalyst for in-situ bio-oil upgrading. • Biomass/methanol co-feeding attenuated the coke formation. • Methanol co-feeding enhanced the bio-oil quality. - Abstract: The in-situ catalytic upgrading of the biomass pyrolysis vapor and its mixture with methanol were conducted in a fixed bed multi-zone reactor. The steps were comprised; thermally converting the biomass in the pyrolysis reactor, passing its vapor in contact with the HZSM-5 zeolite catalyst in the presence of methanol vapor, and transformation of the resulting upgraded pyrolysis vapor into the liquid product. The biomass pyrolysis and catalytic pyrolysis vapor upgrading were performed at 500 °C. The highly valuable chemicals production was a function of the hydrogen to carbon effective ratio (H/C eff ) of the feed. This ratio was regulated by changing the relative amount of biomass and methanol. More aromatic hydrocarbons (50.02 wt.%) and less coke deposition on the catalyst (1.3 wt.%) were yielded from the biomass, when methanol was co-fed to the catalytic pyrolysis process (H/C eff = 1.35). In this contribution, the deposited coke on the catalyst was profoundly investigated. The coke, with high contents of oxo-aromatics and aromatic compounds, was generated by polymerization of biomass lignin derived components activated by catalyst acid sites

  18. Multiyear Plan for Validation of EnergyPlus Multi-Zone HVAC System Modeling using ORNL's Flexible Research Platform

    Energy Technology Data Exchange (ETDEWEB)

    Im, Piljae [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bhandari, Mahabir S. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); New, Joshua Ryan [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2016-10-01

    This document describes the Oak Ridge National Laboratory (ORNL) multiyear experimental plan for validation and uncertainty characterization of whole-building energy simulation for a multi-zone research facility using a traditional rooftop unit (RTU) as a baseline heating, ventilating, and air conditioning (HVAC) system. The project’s overarching objective is to increase the accuracy of energy simulation tools by enabling empirical validation of key inputs and algorithms. Doing so is required to inform the design of increasingly integrated building systems and to enable accountability for performance gaps between design and operation of a building. The project will produce documented data sets that can be used to validate key functionality in different energy simulation tools and to identify errors and inadequate assumptions in simulation engines so that developers can correct them. ASHRAE Standard 140, Method of Test for the Evaluation of Building Energy Analysis Computer Programs (ASHRAE 2004), currently consists primarily of tests to compare different simulation programs with one another. This project will generate sets of measured data to enable empirical validation, incorporate these test data sets in an extended version of Standard 140, and apply these tests to the Department of Energy’s (DOE) EnergyPlus software (EnergyPlus 2016) to initiate the correction of any significant deficiencies. The fitness-for-purpose of the key algorithms in EnergyPlus will be established and demonstrated, and vendors of other simulation programs will be able to demonstrate the validity of their products. The data set will be equally applicable to validation of other simulation engines as well.

  19. Removal of carbon, nitrogen and phosphorus from the separated liquid phase of hog manure by the multi-zone BioCAST technology.

    Science.gov (United States)

    Yerushalmi, Laleh; Alimahmoodi, Mahmood; Afroze, Niema; Godbout, Stephane; Mulligan, Catherine N

    2013-06-15

    The removal of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) at concentrations of 960 ± 38 to 2400 ± 96 mg/L, 143 ± 9 to 235 ± 15 mg/L and 25 ± 2 to 57 ± 4 mg/L, respectively, from the separated liquid phase of hog manure by the multi-zone BioCAST technology is discussed. Despite the inhibitory effect of hog waste toward microbial activities, removal efficiencies up to 89.2% for COD, 69.2% for TN and 47.6% for TP were obtained during 185 d of continuous operation. The free ammonia inhibition was postulated to be responsible for the steady reduction of COD and TP removal with the increase of TN/TP ratio from 3.6 to 5.8. On the contrary, the increase of COD/TN ratio from 4.8 to 14.1 improved the removal of all contaminants. Nitrogen removal did not show any dependence on the COD/TP ratio, despite the steady increase of COD and TP removal with this ratio in the range of 19.3-50.6. The removal efficiencies of organic and inorganic contaminants increased progressively owing to the adaptation of microbial biomass, resulting from the presence of suspended biomass in the mixed liquor that circulated continuously between the three zones of aerobic, microaerophilic and anoxic, as well as the attached biomass immobilized inside the aerobic zone. Copyright © 2013 Elsevier B.V. All rights reserved.

  20. In-situ catalytic upgrading of biomass pyrolysis vapor: Using a cascade system of various catalysts in a multi-zone fixed bed reactor

    International Nuclear Information System (INIS)

    Asadieraghi, Masoud; Wan Daud, Wan Mohd Ashri

    2015-01-01

    Highlights: • A cascade system of different catalysts exhibited the best performance to produce high quality bio-oil. • Meso-HZSM-5, Ga (1 wt.%)/meso-HZSM-5 and Cu (5 wt.%)/SiO 2 were employed in a cascade system. • The incorporation of the appropriate gallium amount to meso-HZSM-5 enhanced the aromatics selectivity. • Meso-HZSM-5 indicated a very good activity in bio-oil upgrading. - Abstract: The in-situ catalytic upgrading of palm kernel shell (PKS) fast pyrolysis vapors was performed over each individual meso-H-ZSM-5, Ga/meso-HZSM-5 and Cu/SiO 2 catalyst or a cascade system of them in a multi-zone fixed bed reactor. The effects of mesoporosity creation into the parent H-ZSM-5 catalyst and also gallium incorporation into mesoporous H-ZSM-5 on the produced bio-oil chemical composition and distribution were studied. Key upgrading reactions for different oxygenated compounds in pyrolysis oil (small oxygenates, lignin derived and sugar derived components), including aldol condensation, alkylation, hydrogenation, aromatization, and deoxygenation were discussed. The catalysts were characterized using SEM, XRF, XRD, N 2 adsorption and NH 3 -TPD methods. Furthermore, the produced bio-oils (catalytic and non-catalytic) were analyzed using GC–MS, FTIR, CHNS/O elemental analyzer and Karl Fischer titration. Production of the upgraded bio-oil with lower content of oxygenated compound was the main objective of this investigation. Among different catalysts, meso-H-ZSM-5 zeolite demonstrated a very good activity in aromatization and deoxygenation during the upgrading of pyrolytic vapors, although it decreased the bio-oil yield (32.6 wt.%). The gallium incorporation into the meso-HZSM-5 zeolite increased the bio-oil yield from 32.6 wt.% (meso-HZSM-5) to 35.8 wt.% (using 1.0 wt.% Ga). Furthermore, the aromatics selectivity was enhanced when the appropriate amount of gallium (1.0 wt.%) was introduced. A cascade system of various catalysts comprising meso-HZSM-5, Ga (1

  1. Progress in catalytic ignition fabrication, modeling and infrastructure : (part 2) development of a multi-zone engine model simulated using MATLAB software.

    Science.gov (United States)

    2014-02-01

    A mathematical model was developed for the purpose of providing students with data : acquisition and engine modeling experience at the University of Idaho. In developing the : model, multiple heat transfer and emissions models were researched and com...

  2. On γ-relaxation process in crystallizable polymers

    International Nuclear Information System (INIS)

    Mindiyarov, Kh.G.; Zelenev, Yu.V.; Bartenev, G.M.

    1975-01-01

    In the present paper, with the aid of radiothermoluminescence technique γ-relaxation processes are investigated, which are conditioned by molecular mobility and are associated with defects in the crystalline structure of polymers PEh, PP, and elastomers PIB, NK, SKD, SKI exposed to γ-rays of Co 60 at a dose rate of 1 Mrad. The shape of the thermoluminescence curve, i.e. the luminescence intensity in the α - γ-maxima, their relationship, position with respect to temperature are strongly dependent on the degree of crystallinity, on the thermal and mechanical prehistory. In highly crystalline samples of PEh and PP α-maximum may be absent. Dependence has been studied of the luminescence intensity in the α- and γ-maxima (Isub(α)/Isub(γ)) on the crystallization temperature; the curve passes through the minimum when the crystallization rate is maximum. The relationship Isub(γ)re of crystallinity degree

  3. Multizone Modular Artillery Propelling Charge Studies.

    Science.gov (United States)

    1985-02-01

    15). As in the previous tcst s, !it th hi-,pad and 4bd itlo A" was at the front o)f the .1 A Aŕ~~ ComEŔ"MU 11- ZONE MODULAR CHARGE obk0- 51 m OMA-22...EXPPTP.R7-2a b A ,tO 1 N.Wfl& ’-.k TYP 11 (CTUAL L(T)__ PA’+ 2,00 5-w bt --356 d td 14~ Jan 82 - - PCD-18,020 lbs. --- C. ARMNY AY ,UNMTON PLANT, RADFORD, VA

  4. Multi-zone modelling of PCCI combustion

    NARCIS (Netherlands)

    Egüz, U.; Somers, L.M.T.; Leermakers, C.A.J.; Goey, de L.P.H.

    2011-01-01

    Early Direct Injection Premixed Charge Compression Ignition (EDI PCCI) combustion is a promising concept for the diesel combustion. Although EDI PCCI assures very low soot and NO xemission levels, the injection is uncoupled from combustion, which narrows down the operating conditions. The main

  5. University Internationalization and University Autonomy

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Gulieva, Valeria

    2016-01-01

    Turcan and Gulieva deepen our theoretical understanding of the process of university internationalisation by exploring the relationship between university internationalisation and university autonomy. They conjecture that the process of university internationalisation and its sustainability are d......, dissimilar, and sometimes conflicting dimensions of the financial, legal, organisational, staffing, and academic autonomy of the host country, are compromising key aspects of their own autonomy and core mission?......Turcan and Gulieva deepen our theoretical understanding of the process of university internationalisation by exploring the relationship between university internationalisation and university autonomy. They conjecture that the process of university internationalisation and its sustainability...... are determined by the structure and exercise of university autonomy settings at home and in the host countries, and that the process itself cannot be successfully achieved and maintained without changes in the autonomy settings. The key question the authors ask is to what degree universities, in embracing new...

  6. Universe symmetries

    International Nuclear Information System (INIS)

    Souriau, J.M.

    1984-01-01

    The sky uniformity can be noticed in studying the repartition of objects far enough. The sky isotropy description uses space rotations. The group theory elements will allow to give a meaning at the same time precise and general to the word a ''symmetry''. Universe models are reviewed, which must have both of the following qualities: - conformity with the physic known laws; - rigorous symmetry following one of the permitted groups. Each of the models foresees that universe evolution obeys an evolution equation. Expansion and big-bang theory are recalled. Is universe an open or closed space. Universe is also electrically neutral. That leads to a work hypothesis: the existing matter is not given data of universe but it appeared by evolution from nothing. Problem of matter and antimatter is then raised up together with its place in universe [fr

  7. Our Universe

    Science.gov (United States)

    Stern, Alan

    2001-03-01

    The Universe in which we live is unimaginably vast and ancient, with countless star systems, galaxies, and extraordinary phenomena such as black holes, dark matter, and gamma ray bursts. What phenomena remain mysteries, even to seasoned scientists? Our Universe is a fascinating collection of essays by some of the world's foremost astrophysicists. Some are theorists, some computational modelers, some observers, but all offer their insights into the most cutting-edge, difficult, and curious aspects of astrophysics. Compiled, the essays describe more than the latest techniques and findings. Each of the ten contributors offers a more personal perspective on their work, revealing what motivates them and how their careers and lives have been shaped by their desire to understand our universe. S. Alan Stern is Director of the Department of Space Studies at Southwest Research Institute in Boulder, Colorado. He is a planetary scientist and astrophysicist with both observational and theoretical interests. Stern is an avid pilot and a principal investigator in NASA's planetary research program, and he was selected to be a NASA space shuttle mission specialist finalist. He is the author of more than 100 papers and popular articles. His most recent book is Pluto & Charon (Wiley, 1997). Contributors: Dr. John Huchra, Harvard University Dr. Esther Hu, University of Hawaii, Honolulu Dr. John Mather, NASA Goddard Space Flight Center Dr. Nick Gnedin, University of Colorado, Boulder Dr. Doug Richstone, University of Michigan, Ann Arbor Dr. Bohdan Paczynski, Princeton University, NJ Dr. Megan Donahue, Space Telescope Science Institute, Baltimore, MD Dr. Jerry Ostriker, Princeton University, New Jersey G. Bothun, University of Oregon, Eugene

  8. Intelligent Universe

    Energy Technology Data Exchange (ETDEWEB)

    Hoyle, F

    1983-01-01

    The subject is covered in chapters, entitled: chance and the universe (synthesis of proteins; the primordial soup); the gospel according to Darwin (discussion of Darwin theory of evolution); life did not originate on earth (fossils from space; life in space); the interstellar connection (living dust between the stars; bacteria in space falling to the earth; interplanetary dust); evolution by cosmic control (microorganisms; genetics); why aren't the others here (a cosmic origin of life); after the big bang (big bang and steady state); the information rich universe; what is intelligence up to; the intelligent universe.

  9. USAID University

    Data.gov (United States)

    US Agency for International Development — USAID University is USAID's learning management system. Features include 1) Access online courses 2) Register for instructor-led courses 3)Access your student...

  10. Runaway universe

    Energy Technology Data Exchange (ETDEWEB)

    Davies, P

    1978-01-01

    The subject is covered in chapters entitled: the emerging universe (general introduction, history of astronomical and cosmological research, origins, the expanding universe, stars, galaxies, electromagnetic radiation); primeval fire (the big bang model, origin of the elements, properties of the elements and of sub-atomic particles); order out of chaos (galactic evolution, star formation, nuclear fusion, the solar system, origin of life on Earth); a star called Sol (properties of the sun and of other stars); life in the universe; the catastrophe principle (the rise and fall of cosmic order); stardoom (star evolution, neutron stars); black holes and superholes (gravitational collapse); technology and survival; the dying universe (second law of thermodynamics); worlds without end (cosmological models).

  11. Rhodes University

    African Journals Online (AJOL)

    Samridhi Sharma

    2013-10-29

    Oct 29, 2013 ... been taken may improve the reception, by the target audience, of the intended communication. This may ... alcohol marketing. Similarly .... of the intended users (Rhodes University support staff ..... Digital Human Modeling and.

  12. Undulant Universe

    Energy Technology Data Exchange (ETDEWEB)

    Barenboim, Gabriela; /Valencia U.; Mena, Olga; Quigg, Chris; /Fermilab

    2004-12-01

    If the equation of state for ''dark energy'' varies periodically, the expansion of the Universe may have undergone alternating eras of acceleration and deceleration. We examine a specific form that survives existing observational tests, does not single out the present state of the Universe as exceptional, and suggests a future much like the matter-dominated past: a smooth expansion without a final inflationary epoch.

  13. Converting Constant Volume, Multizone Air Handling Systems to Energy Efficient Variable Air Volume Multizone Systems

    Science.gov (United States)

    2017-06-05

    Wallace 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING...28  8.2.2  Zone Heating or Cooling Load Imbalance ...Ft. Bragg ........ 24  Table 12. Reduction in Life Cycle Energy Costs for Incremental Retrofits ................................. 25  Table 13. Simple

  14. Converting Constant Volume, Multizone Air Handling Systems to Energy Efficient Variable Air Volume Multizone Systems

    Science.gov (United States)

    2017-10-26

    Figure 30). Similar market shifts are a risk to the return on investment of energy conservation projects. In order to mitigate risk due to market ...strategies, including resource conservation , use, site criteria, and indoor environmental quality. • Set greenhouse gas (GHG) emission reduction goals for...reduction/ conservation technologies such as this run some risk of reducing occupant comfort therefore this was monitored and measured. Metric

  15. Converting Constant Volume, Multizone Air Handling Systems to Energy Efficient Variable Air Volume Multizone Systems

    Science.gov (United States)

    2017-10-26

    TO OTHER ZONE DAMPERS N.O. TEMPERATURE SENSOR CHILLED WATER ZONE 1 STAT SUPPLY FAN COLD DECK COIL TO OTHER ZONE DAMPERS ZONE 1 DAMPER ACTUATOR HOT... water pump usage were considered. Figure 25. Condensing Boiler Combustion Efficiencies 3. Chilled water system losses : Similarly, electrical energy...required to meet cooling demands at the chilled water coil BTU meter is dependent on network losses and chiller energy efficiency ratios. Using

  16. Plasma universe

    International Nuclear Information System (INIS)

    Alfven, H.

    1986-04-01

    Traditionally the views in our cosmic environment have been based on observations in the visual octave of the electromagnetic spectrum, during the last half-century supplemented by infrared and radio observations. Space research has opened the full spectrum. Of special importance are the X-ray-gamma-ray regions, in which a number of unexpected phenomena have been discovered. Radiations in these regions are likely to originate mainly from magnetised cosmic plasma. Such a medium may also emit synchrotron radiation which is observable in the radio region. If we try to base a model of the universe on the plasma phenomena mentioned we find that the plasma universe is drastically different from the traditional visual universe. Information about the plasma universe can also be obtained by extrapolation of laboratory experiments and magnetospheric in situ measurements of plasma. This approach is possible because it is likely that the basic properties of plasma are the same everywhere. In order to test the usefulness of the plasma universe model we apply it to cosmogony. Such an approach seems to be rather successful. For example, the complicated structure of the Saturnian C ring can be accounted for. It is possible to reconstruct certain phenomena 4-5 bilions years ago with an accuracy of better than 1 percent

  17. Baby universes

    International Nuclear Information System (INIS)

    Strominger, A.

    1988-01-01

    This paper discusses how the subject of baby universes and their effects on spacetime coupling constants is in its infancy and rapidly developing. The subject is based on the non-existent (even by physicists' standards) Euclidean formulation of quantum gravity, and it is therefore necessary to make a number of assumptions in order to proceed. Nevertheless, the picture which has emerged is quite appealing: all spacetime coupling constants become dynamical variables when the effects of baby universes are taken into account. This fact might even solve the puzzle of the cosmological constant. The subject therefore seems worth further investigation

  18. Stiegler's University

    Science.gov (United States)

    Featherstone, Mark

    2017-01-01

    In this article, Mark Featherstone proposes to explore Bernard Stiegler's work through the lens of the politics of education and in particular the idea of the university, which becomes a pharmacological space of, on the one hand, utopian possibility, and, on the other hand, dystopian limitation, destruction, and death in his recent "States of…

  19. University writing

    Directory of Open Access Journals (Sweden)

    Miguel Zabalza Beraza

    2013-01-01

    Full Text Available Writing in the University is a basic necessity and a long-range educational purpose. One of the basic characteristics of the university context is that it requires writing both as a tool of communication and as a source of intellectual stimulation. After establishing the basic features of academic writing, this article analyzes the role of writing for students (writing to learn and for teachers (write to plan, to reflect, to document what has been done. The article also discusses the contributions of writing for both students and teachers together: writing to investigate. Finally, going beyond what writing is as academic tool, we conclude with a more playful and creative position: writing for pleasure and enjoyment.

  20. Universe unfolding

    International Nuclear Information System (INIS)

    King, I.R.

    1976-01-01

    Topics covered the setting; looking at the stars; the earth; time, place and the sky; our satellite, the moon; orbits and motion; the motions of the planets; the Copernican revolution; the planets; the other bodies of the solar system; ages, origins, and life; introducing the stars; sorting out the stars; binary stars--two are better than one; variable stars--inconstancy as a virtue; the secrets of starlight--unraveling the spectrum; the sun--our own star; the structure of a star; interstellar material; the Milky Way, our home galaxy; galaxies--the stellar continents; cosmic violence--from radio galaxies to quasars; the universe; and epilogue. The primary emphasis is on how we have come to know what we know about the universe. Star maps are included

  1. University physics

    CERN Document Server

    Arfken, George

    1984-01-01

    University Physics provides an authoritative treatment of physics. This book discusses the linear motion with constant acceleration; addition and subtraction of vectors; uniform circular motion and simple harmonic motion; and electrostatic energy of a charged capacitor. The behavior of materials in a non-uniform magnetic field; application of Kirchhoff's junction rule; Lorentz transformations; and Bernoulli's equation are also deliberated. This text likewise covers the speed of electromagnetic waves; origins of quantum physics; neutron activation analysis; and interference of light. This publi

  2. Human universe

    CERN Document Server

    Cox, Brian

    2014-01-01

    Human life is a staggeringly strange thing. On the surface of a ball of rock falling around a nuclear fireball in the blackness of a vacuum the laws of nature conspired to create a naked ape that can look up at the stars and wonder where it came from. What is a human being? Objectively, nothing of consequence. Particles of dust in an infinite arena, present for an instant in eternity. Clumps of atoms in a universe with more galaxies than people. And yet a human being is necessary for the question itself to exist, and the presence of a question in the universe - any question - is the most wonderful thing. Questions require minds, and minds bring meaning. What is meaning? I don't know, except that the universe and every pointless speck inside it means something to me. I am astonished by the existence of a single atom, and find my civilisation to be an outrageous imprint on reality. I don't understand it. Nobody does, but it makes me smile. This book asks questions about our origins, our destiny, and our place i...

  3. Sustainable Universities

    DEFF Research Database (Denmark)

    Grindsted, Thomas Skou

    2011-01-01

    Declarations on Sustainability in Higher Education (SHE) can be viewed as a piece of international regulation. Over the past 30 years research at universities has produced convincing data to warn about deterioration of the environment, resource scarcity and the need for sustainability. This in turn....... Declarations tend to have impact on three trends. Firstly, there is emerging international consensus on the university’s role and function in relation to sustainable development; secondly, the emergence of national legislation, and thirdly, an emerging international competition to be leader in sustainable...

  4. Open University

    CERN Multimedia

    Pentz,M

    1975-01-01

    Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

  5. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Monday 9 March 2009 COLLOQUIUM at 17:00 – Stückelberg Auditorium Are We Descended From Heavy Neutrinos? Prof. Boris Kayser / Fermilab (Fermi National Accelerator Center, Geneva, Illinois, USA) Neutrinos are among the most abundant particles in the universe. The discovery that they have nonzero masses has raised a number of very interesting questions about them, and about their connections to other areas of physics and to cosmology. After briefly reviewing what has been learned about the neutrinos so far, we will identify the major open questions, explain why they are interesting, and discuss ideas and plans for answering them through future experiments. We will highlight a particularly intriguing question: Are neutrinos the key to understanding why the universe contains matter but almost no antimatter, making it s...

  6. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corpusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Wednesday 13 May 2009 PARTICLE PHYSICS SEMINAR at 17:00 – Stückelberg Auditorium Observing the extreme universe with the Fermi Gamma-ray Space Telescope Prof. Olaf Reimer / Stanford University The Fermi Gamma-ray Space Telescope (FGST, formerly GLAST) is an international observatory-type satellite mission with a physics program spanning from gamma-ray astronomy to particle astrophysics and cosmology. FGST was launched on June 11, 2008 and is successfully conducting science observations of the high-energy gamma-ray sky since August 2008. A varienty of discoveries has been made already, including monitoring rapid blazar variability, the existence of GeV gamma-ray bursts, and numerous new gamma-ray sources of different types, including those belonging to previously unknown gamma-ray source classes like msPSRs, globula...

  7. Geneva University

    CERN Multimedia

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Monday 7 December 2009 PHYSICS COLLOQUIUM at 17:00 – Stückelberg Auditorium Topological insulators and topological superconductors Professor Shoucheng Zhang Department of Physics, Stanford University, CA   Recently, a new class of topological states has been theoretically predicted and experimentally realized. The topological insulators have an insulating gap in the bulk, but have topologically protected edge or surface states due to the time reversal symmetry. In two dimensions the edge states give rise to the quantum spin Hall (QSH) effect, in the absence of any external magnetic field. I shall review the theoretical prediction of the QSH state in HgTe/CdTe semiconductor quantum wells, and its recent experimental observation. The edge states of the QSH state supports fr...

  8. Geneva University

    CERN Multimedia

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Wednesday 18 November  2009 PARTICLE PHYSICS SEMINAR at 17:00 – Stückelberg Auditorium Highlights of the European Strategy Workshop for Future Neutrino Physics Dr Ilias Efthymiopoulos, CERN   Seminar cancelled! Information Organizer : J.-S. Graulich Monday 7 December 2009 PHYSICS COLLOQUIUM at 17:00 – Stückelberg Auditorium Topological insulators and topological superconductors Professor Shoucheng Zhang Department of Physics, Stanford University, CA   Recently, a new class of topological states has been theoretically predicted and experimentally realized. The topological insulators have an insulating gap in the bulk, but have topologically protected edge or surface states due to the time reversal symmetry. In two dimensions the edge s...

  9. Geneva University

    CERN Multimedia

    2008-01-01

    Ecole de physique - Département de physique nucléaire et corpusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 Tél: (022) 379 62 73 Fax: (022) 379 69 92 Monday 28 April 2008 PHYSICS COLLOQUIUM at 17.00 – Stückelberg Auditorium Gravity : an Emergent Perspective by Prof. Thanu Padmanabhan, Pune University Dean, Ganeshkhind, Pune, India I will motivate and describe a novel perspective in which gravity arises as an emergent phenomenon, somewhat like elasticity. This perspective throws light on several issues which are somewhat of a mystery in the conventional approach. Moreover it provides new insights on the dark energy problem. In fact, I will show that it is necessary to have such an alternative perspective in order to solve the cosmological constant problem.Information: http://theory.physics.unige.ch/~fiteo/seminars/COL/collist.html

  10. Universal Alienation

    Directory of Open Access Journals (Sweden)

    David Harvey

    2018-05-01

    Full Text Available This article is part of a debate between David Harvey, Michael Hardt and Toni Negri. It takes Marx’s bicentenary as occasion for an update of his concept of alienation. The paper asks: how are we to interpret universal alienation and from whence does it come? Marx radically reformulated the concept of alienation in the Grundrisse. The humanism of the early Marx can be re-rooted and reconceptualised in the scientific mode proposed in the Grundrisse. In the Grundrisse, the universality of alienation is specific to capitalism’s historical evolution. Today, alienation exists almost everywhere. It exists at work in production, at home in consumption, and it dominates much of politics and daily life. Such trends intensify through the application of information technologies and artificial intelligence. Widespread alienation has resulted in Occupy movements as well as right-wing populism and bigoted nationalist and racist movements. Donald Trump is the President of alienation. The circulation of capital as totality consists of the three key moments of production, circulation and distribution. A lot of contemporary economic struggles are now occurring at the point of realisation rather than at the point of production. Protests are therefore today often expressions of broad-based discontent. Our future is dictated by the need to redeem our debts. Under such conditions democracy becomes a sham. The big question is what forms of social movement can help us get out of the state-finance nexus. The theory of objective alienation along with an understanding of its subjective consequences is one vital key to unlock the door of a progressive politics for the future.

  11. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corpusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Wednesday 25 March 2009 PARTICLE PHYSICS SEMINAR at 17:00 – Stückelberg Auditorium Hunting for the Higgs with D0 at the Tevatron Prof. Gustaaf Brooijmans / Columbia University The search for the Higgs boson is one of the most important endeavors in current experimental particle physics. At the eve of the LHC start, the Tevatron is delivering record luminosity allowing both CDF and D0 to explore a new region of possible Higgs masses. In this seminar, the techniques used to search for the Higgs boson at the Tevatron will be explained, limiting factors will be examined, and the sensitivity in the various channels will be reviewed. The newly excluded values of the standard model Higgs mass will be presented. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer : J.-S. Graulich

  12. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corpusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Lundi 6 avril 2009 PARTICLE PHYSICS SEMINAR àt 17:00 – Auditoire Stückelberg Hospital superbugs, nanomechanics and statistical physics Prof. Dr G. Aeppli / University College London The alarming growth of the antibiotic-resistant superbug, methicillin-resistant Staphylococcus aureus (MRSA) is driving the development of new technologies to investigate antibiotics and their modes of action. We report silicon cantilever based studies of self-assembled monolayers of mucopeptides which model drug-sensitive and resistant bacterial walls. The underlying concepts needed to understand the measurements will simplify the design of cantilevers and coatings for biosensing and could even impact our understanding of drug action on bacteria themselves. (Une verrée en compagnie du conférencier sera offerte après le colloque.) Organizer : Prof. Markus Büttiker ...

  13. Geneva University

    CERN Multimedia

    2008-01-01

    Ecole de physique - Département de physique nucléaire et corpusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 Tél: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 29 October 2008 PARTICLE PHYSICS SEMINAR at 17.00 – Stückelberg Auditorium Precision measurements of low-energy neutrino-nucleus interactions with the SciBooNE experiment at Fermilab by Dr Michel Sorel, IFIC (CSIC and University of Valencia) «Do all modern accelerator-based neutrino experiments need to make use of kiloton-scale detectors and decade-long exposure times? In order to study the full pattern of neutrino mixing via neutrino oscillation experiments, the answer is probably yes, together with powerful proton sources. Still, to push the sensitivity of future neutrino oscillation searches into unchartered territory, those are necessary, but not sufficient, ingredients. In addition, accurate knowledge of neutrino interactions and neutrino production is mandatory. This knowledge can be acquired via small-scale and short-term dedicated n...

  14. Geneva University

    CERN Multimedia

    2010-01-01

    Ecole de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVE 4 Tel: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 14 April 2010 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium Dark Matter and the XENON Experiment By Dr. Marc Schumann, Physik Institut, Universität Zürich There is convincing astrophysical and cosmological evidence that most of the matter in the Universe is dark: It is invisible in every band of the electromagnetic spectrum. Weakly interacting massive particles (WIMPs) are promising Dark Matter candidates that arise naturally in many theories beyond the Standard Model. Several experiments aim to directly detect WIMPs by measuring nuclear recoils from WIMPs scattered on target nuclei. In this talk, I will give an overview on Dark Matter and direct Dark Matter detection. Then I will focus on the XENON100 experiment, a 2-phase liquid/gas time projection chamber (TPC) that ...

  15. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 Genève 4 Tél. 022 379 62 73 - Fax: (022) 379 69 92 Wednesday 14 October 2009 PARTICLE PHYSICS SEMINAR at 17:00 – Stückelberg Auditorium Long-lived particle searches at colliders Dr. Philippe Mermod / Oxford University The discovery of exotic long-lived particles would address a number of important questions in modern physics such as the origin and composition of dark matter and the unification of the fundamental forces. This talk will focus on searches for long-lived charged massive particles, where "charged" refers to the magnetic, electric or colour charge. Previous searches at the LEP and Tevatron Colliders allowed to put mass and cross section limits on various kinds of long-lived particles, such as Magnetic Monopoles and metastable leptons and up-type quarks. The new energy regime made available at the LHC will probe physics regions well beyond these limits. F...

  16. Universal algebra

    CERN Document Server

    Grätzer, George

    1979-01-01

    Universal Algebra, heralded as ". . . the standard reference in a field notorious for the lack of standardization . . .," has become the most authoritative, consistently relied on text in a field with applications in other branches of algebra and other fields such as combinatorics, geometry, and computer science. Each chapter is followed by an extensive list of exercises and problems. The "state of the art" account also includes new appendices (with contributions from B. Jónsson, R. Quackenbush, W. Taylor, and G. Wenzel) and a well-selected additional bibliography of over 1250 papers and books which makes this a fine work for students, instructors, and researchers in the field. "This book will certainly be, in the years to come, the basic reference to the subject." --- The American Mathematical Monthly (First Edition) "In this reviewer's opinion [the author] has more than succeeded in his aim. The problems at the end of each chapter are well-chosen; there are more than 650 of them. The book is especially sui...

  17. Geneva University

    CERN Multimedia

    2009-01-01

    École de physique - Département de physique nucléaire et corpusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4Tél: (022) 379 62 73 - Fax: (022) 379 69 92 Wednesday 29 April 2009 PARTICLE PHYSICS SEMINAR at 17:00 - Stückelberg Auditorium Search for spin-1 excited bosons at the LHC Mihail V. Chizhov (Physics Department, Sofia University, Bulgaria) I will discuss the resonance production of new type spin-1 excited bosons, Z*, at hadron colliders. They can be observed as a Breit-Wigner resonance peak in the invariant dilepton mass distribution in the same way as the well-known hypothetical gauge bosons, Z�. This makes them very interesting objects for early searches with the LHC first data. Moreover, they have unique signatures in transverse momentum and angular distributions, which allow to distinguish them from other resonances. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer: J.-S. Graulich

  18. Tri-block copolymers with mono-disperse crystallizable diamide segments: synthesis, analysis and rheological properties

    NARCIS (Netherlands)

    Araichimani, A.; Gaymans, R.J.

    2008-01-01

    Tri-block copolymers with polyether mid-segments and mono-disperse amide end segments were synthesized, analyzed and some properties studied. The end segment was an aromatic diamide (diaramide, TΦB). The polyether mid-segment was a difunctional poly(tetramethylene oxide) (PTMO, 1000 and 2900 g/mol).

  19. The Learning University.

    Science.gov (United States)

    Patterson, Glenys

    1999-01-01

    As universities make cross-sectoral alliances, various models for integrating postsecondary education into universities arise: contract, brokerage, collaborative, validation, joint program, dual-sector institution, tertiary university, metaphoric, and federal. The integrated, comprehensive university is the learning university of the 21st century.…

  20. The Global University Press

    Science.gov (United States)

    Dougherty, Peter J.

    2012-01-01

    The modern world's understanding of American university press has long been shaped by university-press books. American university-press books are good international advertisements for the universities whose logos grace their spines. The growth of transnational scholarship and the expansion of digital communications networks are converging in ways…

  1. Study of heterogeneous nuclear reactor lattice properties in multizone systems

    International Nuclear Information System (INIS)

    Raisic, N.M.

    1964-12-01

    Described analysis of substitution experiments and its comparison with the classic procedures showed that it could be successfully applied for processing the experimental results. This method shows some advantages and some deficiencies compared to classic methods. Precision of the method is considered sufficient for design of nuclear facilities. Routine standards used in design of nuclear facilities demand following precision of nuclear parameters: about 5% during feasibility study and design of heavy water facility with natural uranium; 2 - 3% in the phase of parameters optimisation and preparing the main project; 1% during optimization of operation. Accuracy of core parameters obtained by analysis of substitution experiments show that they could be successfully used in the phase of reactor parameters optimisation. It is possible to increase the precision of critical parameters and thus apply the proposed method for analysis of reactor parameters needed in the phase of operation optimization

  2. Development of Advanced Multizone Facilities for Microgravity Processing

    Science.gov (United States)

    1998-01-01

    NASA has been interested in experimental ground based study to investigate the fundamental processes involved in phase transformation processes during growth of metallic, nonmetallic and electronic materials. Solidification, vapor growth and solution growth techniques of growing crystals are of special interest because of the inherent importance of convection in the nutrient solution. Convection enhances the mass transport through the nutrient and results in faster growth rates. Availability of low gravity environment of space has provided scientists a new variable to control the extent of convection and thus isolate the diffusive phenomena for their better understanding. The thermal gradient at the liquid-solid interface is determined by the alloy characteristics, the hot zone temperature, cold zone temperature and the width of the insulating zone. The thermal profiles get established by the existing material and geometrical constraints of the experimental set up. The major effort under this research was devoted to designing a programmable furnace which can be used to obtain thermal profiles along the length of the sample as per the demands of the scientists. The furnace did not have active cooling of the zones. Only active heating and passive cooling were utilized.

  3. Multizone Paper Platform for 3D Cell Cultures

    Science.gov (United States)

    Derda, Ratmir; Hong, Estrella; Mwangi, Martin; Mammoto, Akiko; Ingber, Donald E.; Whitesides, George M.

    2011-01-01

    In vitro 3D culture is an important model for tissues in vivo. Cells in different locations of 3D tissues are physiologically different, because they are exposed to different concentrations of oxygen, nutrients, and signaling molecules, and to other environmental factors (temperature, mechanical stress, etc). The majority of high-throughput assays based on 3D cultures, however, can only detect the average behavior of cells in the whole 3D construct. Isolation of cells from specific regions of 3D cultures is possible, but relies on low-throughput techniques such as tissue sectioning and micromanipulation. Based on a procedure reported previously (“cells-in-gels-in-paper” or CiGiP), this paper describes a simple method for culture of arrays of thin planar sections of tissues, either alone or stacked to create more complex 3D tissue structures. This procedure starts with sheets of paper patterned with hydrophobic regions that form 96 hydrophilic zones. Serial spotting of cells suspended in extracellular matrix (ECM) gel onto the patterned paper creates an array of 200 micron-thick slabs of ECM gel (supported mechanically by cellulose fibers) containing cells. Stacking the sheets with zones aligned on top of one another assembles 96 3D multilayer constructs. De-stacking the layers of the 3D culture, by peeling apart the sheets of paper, “sections” all 96 cultures at once. It is, thus, simple to isolate 200-micron-thick cell-containing slabs from each 3D culture in the 96-zone array. Because the 3D cultures are assembled from multiple layers, the number of cells plated initially in each layer determines the spatial distribution of cells in the stacked 3D cultures. This capability made it possible to compare the growth of 3D tumor models of different spatial composition, and to examine the migration of cells in these structures. PMID:21573103

  4. Enlistment Propensities of University Students

    National Research Council Canada - National Science Library

    Moskos, Charles

    2004-01-01

    Enlistment propensities of undergraduates were assessed through surveys conducted at Northwestern University, University of Arizona, University of California-Los Angeles, and University of Illinois-Chicago...

  5. Whither the African University

    African Journals Online (AJOL)

    Sam

    reform. 1. Associate Professor, Department of Philosophy, Addis Ababa University ..... reduce African universities to virtually vocational schools. The World ..... theories, established institutions, and widely held beliefs according to the cannons ...

  6. Origin (?) of the Universe

    Indian Academy of Sciences (India)

    cal models of the universe are based on the idea, which is supported by ... Only the continuous distribution was clearly ... displaced from their natural locations, their observed wave- .... universe? Mathematical Models: Basic Assumptions.

  7. The Alien University

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard

    2018-01-01

    - they are alien. The conditions of universities today is not one of crisis and upheaval, as with the postmodern universities, it is one of night travel and exile. The alien university leaves behind the epistemological skirmishes of the postmodern university with all its rhetoric and knowledge activism. Thinking...... in the alien university is a move into a whirlpool of nothingness, a “nocturnal space”, where “[d]arkness fills it like a content; it is full, but full of the nothingness of everything.” (Levinas, 2001, p.53). In the alien university thinking is not situated, and instead of rhizomes, and assemblages of thought......, there is merely an imposing and nightly “swarming of points.” (ibid.). There is no place for the alien university, and exactly this exile of thought makes possible the move beyond postmodernism and the mentality of political crisis. The alien university is not in the future as such, but it is not entirely...

  8. Gambling with the Universe

    Science.gov (United States)

    Hawking, Stephen

    2002-05-01

    This is an excerpt from Stephen Hawking's book The Universe in a Nutshell. Roger Penrose and Stephen Hawking, Lucasian Professor of Mathematics at the University of Cambridge, were able to show that Einstein's General Theory of Relativity implied that the universe and time itself must have had a beginning in a tremendous explosion. The discovery of the expansion of the universe is one of the great intellectual revolutions of the twentieth century.

  9. Inflation in the Universe

    International Nuclear Information System (INIS)

    Barrow, J.D.; California Univ., Berkeley; Turner, M.S.; Chicago Univ., IL

    1981-01-01

    The problems of explaining the observed isotropy, homogeneity, flatness and specific entropy of the Universe are discussed in the context of an inflationary Universe which has recently been suggested. It is shown that the isotropy cannot be ignored as a Universe with a large amount of anisotropy will not undergo the inflationary phase. A Universe with only moderate anistropy will undergo inflation and will be rapidly isotropized. (U.K.)

  10. Entrepreneurship in Finnish Universities

    Science.gov (United States)

    Nurmi, Piia; Paasio, Kaisu

    2007-01-01

    Purpose: The purpose of this paper is to discuss the role of universities in fostering and promoting entrepreneurship in Finland. In particular it seeks to examine the university-entrepreneurship relationship: its nature and how universities are addressing the entrepreneurship agenda. Design/methodology/approach: The paper is based on a large…

  11. Our Particle Universe

    Indian Academy of Sciences (India)

    and “why is the universe the way it is?” Not long before ... to each other. The interactions of particles in the universe ... theory by Jean Perrin in 1908 convinced people that atoms and ..... ing the origin and evolution of our universe13. This is an ...

  12. Hybrid Universities in Malaysia

    Science.gov (United States)

    Lee, Molly; Wan, Chang Da; Sirat, Morshidi

    2017-01-01

    Are Asian universities different from those in Western countries? Premised on the hypothesis that Asian universities are different because of hybridization between Western academic models and local traditional cultures, this paper investigates the hybrid characteristics in Malaysian universities resulting from interaction between contemporary…

  13. Establishing a University Foundation.

    Science.gov (United States)

    Lemish, Donald L.

    A handbook on how to establish a university foundation is presented. It presupposes that a foundation will be used as the umbrella organization for receiving all private gifts, restricted and unrestricted, for the benefit of a public college or university; and hence it chiefly addresses readers from public colleges and universities. Information is…

  14. The University Culture

    Science.gov (United States)

    Simplicio, Joseph

    2012-01-01

    In this article the author discusses the role university culture can play on a campus and how it can impact policy and practice. The article explores how a university's history, values, and vision form its culture and how this culture in turn affects its stability and continuity. The article discusses how newcomers within the university are…

  15. Motivating University Researchers

    NARCIS (Netherlands)

    Hendriks, P.H.J.; Alves de Sousa, C.A.

    2008-01-01

    This paper presents an empirical investigation into how universities approach the need and means for motivating university researchers through their management practices. The role of work motivation for this group deserves attention because pressures from outside and within the universities are said

  16. A Universal Reactive Machine

    DEFF Research Database (Denmark)

    Andersen, Henrik Reif; Mørk, Simon; Sørensen, Morten U.

    1997-01-01

    Turing showed the existence of a model universal for the set of Turing machines in the sense that given an encoding of any Turing machine asinput the universal Turing machine simulates it. We introduce the concept of universality for reactive systems and construct a CCS processuniversal...

  17. The early universe

    International Nuclear Information System (INIS)

    Steigman, G.

    1989-01-01

    The author discusses the physics of the early universe: the production and survival of relics from the big bang. The author comments on relic WIMPs as the dark matter in the universe. The remainder of this discussion is devoted to a review of the status of the only predictions from the early evolution of the universe that are accessible to astronomical observation: primordial nucleosynthesis

  18. Dropout Phenomena at Universities

    DEFF Research Database (Denmark)

    Larsen, Michael Søgaard; Kornbeck, Kasper Pihl; Kristensen, Rune

    Dropout from university studies comprises a number of complex phenomena with serious complex consequences and profound political attention. Further analysis of the field is, therefore, warranted. Such an analysis is offered here as a systematic review which gives answers based on the best possible...... such dropout phenomena occur at universities? What can be done by the universities to prevent or reduce such dropout phenomena?...

  19. Antimatter in the universe

    Science.gov (United States)

    Stigman, G.

    1973-01-01

    The means of detecting the presence of antimatter in the universe are discussed. Both direct, annihilation processes, and indirect, cosmic ray particles, were analyzed. All results were negative and it was concluded that no antimatter exists, if the universe is in fact symmetric. If the universe is not symmetric then matter and antimatter are well separated from each other.

  20. Universities as Development Hubs

    DEFF Research Database (Denmark)

    Hansen, Jens Aage; Lindegaard, Klaus; Lehmann, Martin

    2005-01-01

    Capacity-building in environment and development has been implemented and tested over the last decade through university and university consortia networking. Universities from Africa (Botswana and South Africa), Asia (Malaysia and Thailand), Central America (Costa Rica, El Salvador and Nicaragua...

  1. The inflationary universe

    International Nuclear Information System (INIS)

    Guth, A.; Steinhardt, P.

    1993-01-01

    According to the inflationary model, the universe had a brief period of extraordinary rapid expansion, or inflation, during which its diameter increased by a factor at least 10 25 times larger (and perhaps much larger still) than had been previously thought. All the matter and energy in the universe could have been created from virtually nothing. Features of this article are: comparison of standard and inflationary modes, the horizon problem, the geometry of the universe, spontaneous symmetry breaking and the Higgs mechanism (energy density of the Higgs fields), the flatness problem, the new inflationary universe (new Higgs fields and false vacuum), conserved quantities in the universe. 12 figs., 11 refs

  2. The inflationary universe

    International Nuclear Information System (INIS)

    Linde, A.D.

    1984-01-01

    According to the inflationary universe scenario the universe in the very early stages of its evolution was exponentially expanding in the unstable vacuum-like state. At the end of the exponential expansion the energy of the unstable vacuum transforms into the energy of hot dense matter. Recently it was realised that the exponential expansion of the universe naturally occurs in a wide class of realistic theories of elementary particles. The inflationary universe scenario makes it possible to obtain a simple solution to many longstanding cosmological problems and leads to a crucial modification of the standard point of view of the large-scale structure of the universe. (author)

  3. The expanding universe

    CERN Document Server

    Lew, Kristi

    2011-01-01

    People have always been fascinated with the stars above and the universe that contains them. Over the years, astronomers have developed numerous theories to explain how the universe began, how it works, and what its ultimate fate will be. But all of the scientists' questions are far from answered. The Expanding Universe goes beyond the creation of the universe to explain how scientists think the universe works, grows, and changes, including what great thinkers Isaac Newton and Albert Einstein had to say about its fate. Readers will also learn about how researchers are slowly shedding light on

  4. The universe a biography

    CERN Document Server

    Gribbin, John

    2008-01-01

    The Universe: A Biography makes cosmology accessible to everyone. John Gribbin navigates the latest frontiers of scientific discovery to tell us what we really know about the history of the universe. Along the way, he describes how the universe began; what the early universe looked like; how its structure developed; and what emerged to hold it all together. He describes where the elements came from; how stars and galaxies formed; and the story of how life emerged. He even looks to the future: is the history of the universe going to end with a Big Crunch or a Big Rip.

  5. A lightweight universe?

    Science.gov (United States)

    Bahcall, Neta A.; Fan, Xiaohui

    1998-01-01

    How much matter is there in the universe? Does the universe have the critical density needed to stop its expansion, or is the universe underweight and destined to expand forever? We show that several independent measures, especially those utilizing the largest bound systems known—clusters of galaxies—all indicate that the mass-density of the universe is insufficient to halt the expansion. A promising new method, the evolution of the number density of clusters with time, provides the most powerful indication so far that the universe has a subcritical density. We show that different techniques reveal a consistent picture of a lightweight universe with only ∼20–30% of the critical density. Thus, the universe may expand forever. PMID:9600898

  6. Universities scale like cities.

    Directory of Open Access Journals (Sweden)

    Anthony F J van Raan

    Full Text Available Recent studies of urban scaling show that important socioeconomic city characteristics such as wealth and innovation capacity exhibit a nonlinear, particularly a power law scaling with population size. These nonlinear effects are common to all cities, with similar power law exponents. These findings mean that the larger the city, the more disproportionally they are places of wealth and innovation. Local properties of cities cause a deviation from the expected behavior as predicted by the power law scaling. In this paper we demonstrate that universities show a similar behavior as cities in the distribution of the 'gross university income' in terms of total number of citations over 'size' in terms of total number of publications. Moreover, the power law exponents for university scaling are comparable to those for urban scaling. We find that deviations from the expected behavior can indeed be explained by specific local properties of universities, particularly the field-specific composition of a university, and its quality in terms of field-normalized citation impact. By studying both the set of the 500 largest universities worldwide and a specific subset of these 500 universities--the top-100 European universities--we are also able to distinguish between properties of universities with as well as without selection of one specific local property, the quality of a university in terms of its average field-normalized citation impact. It also reveals an interesting observation concerning the working of a crucial property in networked systems, preferential attachment.

  7. Universities scale like cities.

    Science.gov (United States)

    van Raan, Anthony F J

    2013-01-01

    Recent studies of urban scaling show that important socioeconomic city characteristics such as wealth and innovation capacity exhibit a nonlinear, particularly a power law scaling with population size. These nonlinear effects are common to all cities, with similar power law exponents. These findings mean that the larger the city, the more disproportionally they are places of wealth and innovation. Local properties of cities cause a deviation from the expected behavior as predicted by the power law scaling. In this paper we demonstrate that universities show a similar behavior as cities in the distribution of the 'gross university income' in terms of total number of citations over 'size' in terms of total number of publications. Moreover, the power law exponents for university scaling are comparable to those for urban scaling. We find that deviations from the expected behavior can indeed be explained by specific local properties of universities, particularly the field-specific composition of a university, and its quality in terms of field-normalized citation impact. By studying both the set of the 500 largest universities worldwide and a specific subset of these 500 universities--the top-100 European universities--we are also able to distinguish between properties of universities with as well as without selection of one specific local property, the quality of a university in terms of its average field-normalized citation impact. It also reveals an interesting observation concerning the working of a crucial property in networked systems, preferential attachment.

  8. University of Maryland MRSEC - Collaborations

    Science.gov (United States)

    . University of Maryland Materials Research Science and Engineering Center Home About Us Leadership , National Nanotechnology Lab, Neocera, NIST, Rowan University, Rutgers University, Seagate, Tokyo Tech

  9. Rectors of European universities

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    Several rectors of European universities visited CERN recently while in Geneva for a conference on coordination between their institutions. The visit began with a welcome by Roger Cashmore, CERN Director of Collider Programmes,and continued with tours of CMS, ALICE and the LHC magnet assembly hall. Photos 01, 02: The visitors in the ALICE assembly hall: (left to right) Dr. Raymond Werlen, Deputy Secretary-General of the Conference of Rectors of Swiss Universities; visit guide Prof. Alain Blondel, Department of Nuclear and Corpuscular Physics, University of Geneva; Prof. Adriano Pimpão, Rector of the University of Algarve, President of the Council of Rectors of Portuguese Universities; Prof. Jean-Pierre Finance, Conference of University Presidents, France; Prof. Jean-Paul Lehners, Vice-President of the Centre Universitaire, Luxemburg.

  10. Universities as Research Partners

    OpenAIRE

    Hall, Bronwyn; Link, Albert; Scott, John

    2010-01-01

    Universities are a key institution in the U.S. innovation system, and an important aspect of their involvement is the role they play in public-private partnerships. This note offers insights into the performance of industry-university research partnerships, using a survey of precommercial research projects funded by the Advanced Technology Program. Although results must be interpreted cautiously because of the small size of the sample, the study finds that projects with university involvement...

  11. Geometry of the Universe

    International Nuclear Information System (INIS)

    Gurevich, L.Eh.; Gliner, Eh.B.

    1978-01-01

    Problems of investigating the Universe space-time geometry are described on a popular level. Immediate space-time geometries, corresponding to three cosmologic models are considered. Space-time geometry of a closed model is the spherical Riemann geonetry, of an open model - is the Lobachevskij geometry; and of a plane model - is the Euclidean geometry. The Universe real geometry in the contemporary epoch of development is based on the data testifying to the fact that the Universe is infinitely expanding

  12. University Advertising and Universality in Messaging

    Science.gov (United States)

    Diel, Stan R.; Katsinas, Stephen

    2018-01-01

    University and college institutional advertisements, which typically are broadcast as public service announcements during the halftime of football games, were the subject of a quantitative analysis focused on commonality in messaging and employment of the semiotic theory of brand advertising. Findings indicate advertisements focus on students'…

  13. From Universal Access to Universal Proficiency.

    Science.gov (United States)

    Lewis, Anne C.

    2003-01-01

    Panel of five education experts--Elliot Eisner, John Goodlad, Patricia Graham, Phillip Schlechty, and Warren Simons--answer questions related to recent school reform efforts, such as the No Child Left Behind Act, aimed at achieving universal educational proficiency. (PKP)

  14. Imagining the Future University

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard; Barnett, Ronald

    'Imagining the Future University' is a special issue in the journal Philosophy and Theory in Higher Education, published by Peter Lang. Editor in Chief of the journal is John Petrovic, University of Alabama. The speciale issue is edited by Søren Bengtsen and Ronald Barnett.......'Imagining the Future University' is a special issue in the journal Philosophy and Theory in Higher Education, published by Peter Lang. Editor in Chief of the journal is John Petrovic, University of Alabama. The speciale issue is edited by Søren Bengtsen and Ronald Barnett....

  15. Mathematics at University

    DEFF Research Database (Denmark)

    Winsløw, Carl

    2015-01-01

    Mathematics is studied in universities by a large number of students. At the same time it is a field of research for a (smaller) number of university teachers. What relations, if any, exist between university research and teaching of mathematics? Can research “support” teaching? What research...... and what teaching? In this presentation we propose a theoretical framework to study these questions more precisely, based on the anthropological theory of didactics. As a main application, the links between the practices of mathematical research and university mathematics teaching are examined...

  16. University of Washington

    Data.gov (United States)

    Federal Laboratory Consortium — The theme of the University of Washington based Center for Child Environmental Health Risks Research (CHC) is understanding the biochemical, molecular and exposure...

  17. University Technology Transfer

    Directory of Open Access Journals (Sweden)

    Mike Cox

    2004-09-01

    Full Text Available This article describes the experiences and general observations of the author at Heriot-Watt University and concerns the transfer of university technology for the purposes of commercialisation. Full commercial exploitation of a university invention generally requires transferring that technology into the industrial arena, usually either by formation of a new company or licensing into an existing company. Commercialisation activities need to be carried out in unison with the prime activities of the university of research and teaching. Responsibility for commercialising university inventions generally rests with a specific group within the university, typically referred to as the technology transfer group. Each technology transfer should be considered individually and appropriate arrangements made for that particular invention. In general, this transfer process involves four stages: identification, evaluation, protection and exploitation. Considerations under these general headings are outlined from a university viewpoint. A phased approach is generally preferred where possible for the evaluation, protection and exploitation of an invention to balance risk with potential reward. Evaluation of the potential opportunity for a university invention involves essentially the same considerations as for an industrial invention. However, there are a range of commercial exploitation routes and potential deals so that only general guidelines can be given. Naturally, the final deal achieved is that which can be negotiated. The potential rewards for the university and inventor are both financial (via licensing income and equity realisation and non-financial.

  18. Universality in heterogeneous catalysis

    DEFF Research Database (Denmark)

    Nørskov, Jens Kehlet; Pedersen, Thomas Bligaard; Logadottir, Ashildur

    2002-01-01

    Based on an extensive set of density functional theory calculations it is shown that for a class of catalytic reactions there is a universal, reactant independent relation between the reaction activation energy and the stability of reaction intermediates. This leads directly to a universal relati...

  19. Regionalism in Scottish Universities

    Science.gov (United States)

    Hutchison, Dougal

    1976-01-01

    It is well-known that Scottish universities are highly local institutions and that over two-fifth of Scottish university students live at home. Attempts to ascertain if this regionalism has relaxed over the past twenty years with student grant regulations, improvement in communications and the increasing affluence of today's society. (Author/RK)

  20. Reeducation at Heidelberg University.

    Science.gov (United States)

    Giles, Geoffrey J.

    1997-01-01

    Utilizes German archival records to illuminate crucial post-war events at Heidelberg University. The university became the focal point of attempts to define the theoretical and practical meaning of "geistige Umerziehung" (spiritual reeducation). Discusses the conflict between U.S. authorities and such esteemed German scholars as Karl…

  1. Marketing University Outreach Programs.

    Science.gov (United States)

    Foster, Ralph S., Jr., Ed.; And Others

    A collection of 12 essays and model program descriptions addresses issues in the marketing of university extension, outreach, and distance education programs. They include: (1) "Marketing and University Outreach: Parallel Processes" (William I. Sauser, Jr. and others); (2) "Segmenting and Targeting the Organizational Market"…

  2. Universe of constant

    Science.gov (United States)

    Yongquan, Han

    2016-10-01

    The ideal gas state equation is not applicable to ordinary gas, it should be applied to the Electromagnetic ``gas'' that is applied to the radiation, the radiation should be the ultimate state of matter changes or initial state, the universe is filled with radiation. That is, the ideal gas equation of state is suitable for the Singular point and the universe. Maybe someone consider that, there is no vessel can accommodate radiation, it is because the Ordinary container is too small to accommodate, if the radius of your container is the distance that Light through an hour, would you still think it can't accommodates radiation? Modern scientific determinate that the radius of the universe now is about 1027 m, assuming that the universe is a sphere whose volume is approximately: V = 4.19 × 1081 cubic meters, the temperature radiation of the universe (cosmic microwave background radiation temperature of the universe, should be the closest the average temperature of the universe) T = 3.15k, radiation pressure P = 5 × 10-6 N / m 2, according to the law of ideal gas state equation, PV / T = constant = 6 × 1075, the value of this constant is the universe, The singular point should also equal to the constant Author: hanyongquan

  3. Knowledge and the University

    DEFF Research Database (Denmark)

    Barnett, Ronald; Bengtsen, Søren Smedegaard

    for the university and the university’s place in the world. However, that presupposition has taken a battering recently from many directions. With the incorporation of the university more fully into the world, knowledge is no longer seen as valuable in-itself but now is viewed only instrumentally, and has to have...

  4. The deep universe

    CERN Document Server

    Sandage, AR; Longair, MS

    1995-01-01

    Discusses the concept of the deep universe from two conflicting theoretical viewpoints: firstly as a theory embracing the evolution of the universe from the Big Bang to the present; and secondly through observations gleaned over the years on stars, galaxies and clusters.

  5. Understanding University Technology Transfer

    Science.gov (United States)

    Association of American Universities, 2011

    2011-01-01

    Federal government agencies provide about $33 billion a year to universities to conduct scientific research. That continuing investment expands human knowledge and helps educate the next generation of science and technology leaders. New discoveries from university research also form the basis for many new products and processes that benefit the…

  6. Talent Management for Universities

    Science.gov (United States)

    Bradley, Andrew P.

    2016-01-01

    This paper explores human resource management practices in the university sector with a specific focus on talent pools and talent management more generally. The paper defines talent management in the context of the university sector and then explores its interdependence with organisational strategy, the metrics used to measure academic performance…

  7. General Topology of the Universe

    OpenAIRE

    Pandya, Aalok

    2002-01-01

    General topology of the universe is descibed. It is concluded that topology of the present universe is greater or stronger than the topology of the universe in the past and topology of the future universe will be stronger or greater than the present topology of the universe. Consequently, the universe remains unbounded.

  8. The university with conditions

    Directory of Open Access Journals (Sweden)

    José María Ripalda Crespo

    2013-03-01

    Full Text Available The model of the national university is being substituted by that of the global university. At the same time, new dogmas that appear with economic labels are being imposed. All this is accompanied by important cultural changes. The Spanish university was one of the instances that was taken care of by the post-Francoist regime. Now, this regime feels strong against it, and on the other hand this university – as the whole of the productive structure – requires a reform. It is not expected that this reform will go in the direction of the university having more social presence, but rather more presence of companies. It is neither expected that it will imply more internal democracy, but more discipline. All resistance or alternative has to take into account the new situation and join the still dispersed forces that still have, however, a constitutive capacity.

  9. The holographic universe

    CERN Document Server

    Talbot, Michael

    1991-01-01

    'There is evidence to suggest that our world and everything in it - from snowflakes to maple trees to falling stars and spinning electrons - are only ghostly images, projections from a level of reality literally beyond both space and time.' This is the astonishing idea behind the holographic theory of the universe, pioneered by two eminent thinkers: physicist David Bohm, a former protege of Albert Einstein, and quantum physicist Karl Pribram. The holographic theory of the universe encompasses consciousness and reality as we know them, but can also explain such hitherto unexplained phenomena as telepathy, out-of-body experiences and even miraculous healing. In this remarkable book, Michael Talbot reveals the extraordinary depth and power of the holographic theory of the universe, illustrating how it makes sense of the entire range of experiences within our universe - and in other universes beyond our own.

  10. The rotating universe

    International Nuclear Information System (INIS)

    Ruben, G.; Treder, H.J.

    1987-01-01

    For a long time the question whether the universe rotates or not is discussed. Aspects of Huygens, Newton, Mach and other important historical scientists in this field are reported. The investigations of the mathematician Kurt Groedel in order to prove the rotation of the universe are illustrated. Kurt Groedel has shown that Einstein's gravitational equations of general relativity theory and the cosmological postulate of global homogeneity of cosmic matter (that is the Copernical principle) are not contradictionary to a rotating universe. Abberation measurements, position determination by means of radiointerferometry and methods for the determination of the rotation of the universe from the isotropy of the background radiation are presented. From these experiments it can be concluded that the universe seems not to rotate as already Einstein expected

  11. University Performance Management

    DEFF Research Database (Denmark)

    For the last two decades the Danish Universities have felt the impact of the international trend towards implementation of New Public Management. The results are seen in the implementation of new hierarchical governance structures and contractual governance system including market based quantitat......For the last two decades the Danish Universities have felt the impact of the international trend towards implementation of New Public Management. The results are seen in the implementation of new hierarchical governance structures and contractual governance system including market based...... quantitative measurement systems for resource allocation and performance evaluation. Compared to other countries the changes in performance measurements and governance of the Danish universities are radical and the Minister of Science heralded them as "the greatest change in university management since...... the founding of Copenhagen University in 1479". The changes took place with surprisingly little resistance from university scholars. The articles in this anthology investigate the origins and rationales for the silent managerial revolution at Danish Universities and the radical implications for the identity...

  12. Age of the universe

    International Nuclear Information System (INIS)

    Parker, B.

    1981-01-01

    The age of the universe is the time that has elapsed since the Big Bang. To calculate the age, the expansion rate of the universe and distance to the galaxies must be determined. Unfortunately, it appears that the expansion rate is not constant but is decelerating. In the 1920's and 30's, Edwin Hubble set out to estimate the age of universe based on the expansion rate and distance to the galaxies. His method is described along with its flaw. Since that time several others have estimated the age of the universe. Their methods as well as results vary. These are discussed in the article. The ages determined from the various methods range from 10 to 20 billion years. There are two independent ways to determine the age of the universe. What they actually do is determine the age of our galaxy which would give a lower limit to the age of the universe. The first method calculates age of globular clusters which yields as age range from 8 to 18 billion years. The second method involves observing the speed at which radioactive substances decay. This also yields and age greater than 10 billion years. It is clear that there is still a lot of work to do before the true age of the universe can be determied

  13. On universal partial words

    OpenAIRE

    Chen, Herman Z. Q.; Kitaev, Sergey; Mütze, Torsten; Sun, Brian Y.

    2016-01-01

    A universal word for a finite alphabet $A$ and some integer $n\\geq 1$ is a word over $A$ such that every word in $A^n$ appears exactly once as a subword (cyclically or linearly). It is well-known and easy to prove that universal words exist for any $A$ and $n$. In this work we initiate the systematic study of universal partial words. These are words that in addition to the letters from $A$ may contain an arbitrary number of occurrences of a special `joker' symbol $\\Diamond\

  14. Consciousness in the Universe

    Directory of Open Access Journals (Sweden)

    Khalil Chamcham

    2013-07-01

    Full Text Available So far we can identify at least three concepts within modern cosmology that bring into debate the question of consciousness in the universe: 1 Fine Tuning; 2 The Anthropic Principle and 3 The Multiverse. This does not exclude the question of the role of observer (i.e. consciousness in cosmology as developed within Quantum Physics: we observe the universe through quanta and any breakthrough in understanding the origin and nature of the universe will come only through a quantum theory of gravity […

  15. Possible physical universes

    Directory of Open Access Journals (Sweden)

    Gordon McCabe

    2005-12-01

    Full Text Available The purpose of this paper is to discuss the various types of physical universe which could exist according to modern mathematical physics. The paper begins with an introduction that approaches the question from the viewpoint of ontic structural realism. Section 2 takes the case of the 'multiverse' of spatially homogeneous universes, and analyses the famous Collins-Hawking argument, which purports to show that our own universe is a very special member of this collection. Section 3 considers the multiverse of all solutions to the Einstein field equations, and continues the discussion of whether the notions of special and typical can be defined within such a collection.

  16. Universal (Global Evolutionism

    Directory of Open Access Journals (Sweden)

    Arkady Ursul

    2018-02-01

    Full Text Available In this article investigate a general scientific concept of a global (universal evolution, in which selforganization of the material systems acts as a common ground and a permanent process of progressive development in the visible Universe. The main problem of research of this type of evolution is seen as a superhighway trajectory of evolutionary processes in the Universe, in which there is a continuous selforganization of the material systems, ranging from the Big Bang and to the social level of evolution, which may have an indefinite continuation of society and nature

  17. Interaction university and school

    Directory of Open Access Journals (Sweden)

    Gionara Tauchen

    2016-05-01

    Full Text Available Considering that the interaction between universities and middle schools is fundamental for organization and the qualification of the education system, we conducted a qualitative study on twenty public municipal schools of Rio Grande, RS, designed to investigate and understand the effectiveness of university activities (teaching, research and extension in regard to the promotion and strengthening of the interactions between these institutions. We highlight the activities related to Pibid, the Education Observatory, extension, supervised internships, and to undergraduate and postgraduate research. From comprehensions about these activities, we discuss the interaction between school and university.

  18. The intelligent Universe

    International Nuclear Information System (INIS)

    Hoyle, F.

    1983-01-01

    The subject is covered in chapters, entitled: chance and the universe (synthesis of proteins; the 'primordial soup'); the gospel according to Darwin (discussion of Darwin theory of evolution); life did not originate on earth (fossils from space; life in space); the interstellar connection (living dust between the stars; bacteria in space falling to the earth; interplanetary dust); evolution by cosmic control (microorganisms; genetics); why aren't the others here (a cosmic origin of life); after the big bang (big bang and steady state); the information rich universe; what is intelligence up to; the intelligent universe. (U.K.)

  19. ULTRA: Universal Grammar as a Universal Parser.

    Science.gov (United States)

    Medeiros, David P

    2018-01-01

    A central concern of generative grammar is the relationship between hierarchy and word order, traditionally understood as two dimensions of a single syntactic representation. A related concern is directionality in the grammar. Traditional approaches posit process-neutral grammars, embodying knowledge of language, put to use with infinite facility both for production and comprehension. This has crystallized in the view of Merge as the central property of syntax, perhaps its only novel feature. A growing number of approaches explore grammars with different directionalities, often with more direct connections to performance mechanisms. This paper describes a novel model of universal grammar as a one-directional, universal parser. Mismatch between word order and interpretation order is pervasive in comprehension; in the present model, word order is language-particular and interpretation order (i.e., hierarchy) is universal. These orders are not two dimensions of a unified abstract object (e.g., precedence and dominance in a single tree); rather, both are temporal sequences, and UG is an invariant real-time procedure (based on Knuth's stack-sorting algorithm) transforming word order into hierarchical order. This shift in perspective has several desirable consequences. It collapses linearization, displacement, and composition into a single performance process. The architecture provides a novel source of brackets (labeled unambiguously and without search), which are understood not as part-whole constituency relations, but as storage and retrieval routines in parsing. It also explains why neutral word order within single syntactic cycles avoids 213-like permutations. The model identifies cycles as extended projections of lexical heads, grounding the notion of phase. This is achieved with a universal processor, dispensing with parameters. The empirical focus is word order in noun phrases. This domain provides some of the clearest evidence for 213-avoidance as a cross

  20. Risk management at university

    OpenAIRE

    Ivanova, H.; Abramovich, S.

    2013-01-01

    This article observes the basic recommendations for the risk management system in higher education as an example Yanka Kupala State University of Grodno. Consider the risk-management standard that based in a process approach

  1. The hidden universe

    International Nuclear Information System (INIS)

    Disney, M.

    1985-01-01

    Astronomer Disney has followed a somewhat different tack than that of most popular books on cosmology by concentrating on the notion of hidden (as in not directly observable by its own radiation) matter in the universe

  2. Is our Universe typical?

    International Nuclear Information System (INIS)

    Gurzadyan, V.G.

    1988-01-01

    The problem of typicalness of the Universe - as a dynamical system possessing both regular and chaotic regions of positive measure of phase space, is raised and discussed. Two dynamical systems are considered: 1) The observed Universe as a hierarchy of systems of N graviting bodies; 2) (3+1)-manifold with matter evolving to Wheeler-DeWitt equation in superspace with Hawking boundary condition of compact metrics. It is shown that the observed Universe is typical. There is no unambiguous answer for the second system yet. If it is typical too then the same present state of the Universe could have been originated from an infinite number of different initial conditions the restoration of which is practically impossible at present. 35 refs.; 2 refs

  3. The Universe and Life

    Directory of Open Access Journals (Sweden)

    Eduard Kazantsev

    2016-02-01

    Full Text Available This article discusses some of the unsolved problems of modern cosmology, which lead to the need to consider the role of living matter in the evolution of the universe. The author proposes the hy- pothesis of the emergence, in the process of evolution of the universe, “biological vacuum” (physical antipode, which has a purpose of improving physical matter until the appearance of living matter. Substantiates the idea that the “biological vacuum” in the “live” dark matter with the participation of a living organism as an intermediary. The model of a stationary universe, as the local group of galaxies, placed in a halo of “live” dark matter. At the end of the article the author predicts the final evolution of the physical universe (after the collapse of the physical fields and particles as the begin- ning of a new stage of evolution of the “live” dark matter.

  4. Origin (?) of the Universe

    Indian Academy of Sciences (India)

    light nuclei and the microwave background. ... tested by more sophisticated observations. This is what we ... of the universe so long as the observational tests do not disprove it. ... Naturally, in the six and a half decades since Hubble's observa-.

  5. University Presidents: Academic Chameleons

    Science.gov (United States)

    Buxton, Thomas H.; And Others

    1976-01-01

    Sampling the opinions of at least one college or university president in each state and at schools of all sizes, the authors measure the degree of job satisfaction experienced by presidents. (Editor/LBH)

  6. The accidental universe

    International Nuclear Information System (INIS)

    Davies, P.C.W.

    1982-01-01

    Is our universe an accident of nature. The mysterious coincidences underlying the structure and properties of the universe that we inhabit are examined. This is the first book for the non-specialist reader to present in depth the provocative hypothesis that the structure of the physical world is exceedingly contrived in its appearance. A survey is presented of the range of apparently miraculous accidents of nature that have enabled the universe to evolve its familiar structures: atoms, stars, galaxies, and life itself. This book concludes with an investigation of the so-called 'anthropic principle' which postulates that 'miraculous coincidences' are inevitable in any universe containing conscious observers. This thesis of a cosmic biological selection effect will both reassure and enrage readers, the very existence of whom may be related to fine tuning in the laws of physics. (author)

  7. The isotropic Universe

    International Nuclear Information System (INIS)

    Raine, D.J.

    1981-01-01

    This introduction to contemporary ideas in cosmology differs from other books on the 'expanding Universe' in its emphasis on physical cosmology and on the physical basis of the general theory of relativity. It is considered that the remarkable degree of isotropy, rather than the expansion, can be regarded as the central observational feature of the Universe. The various theories and ideas in 'big-bang' cosmology are discussed, providing an insight into current problems. Chapter headings are: quality of matter; expanding Universe; quality of radiation; quantity of matter; general theory of relativity; cosmological models; cosmological tests; matter and radiation; limits of isotropy; why is the Universe isotropic; singularities; evolution of structure. (U.K.)

  8. University of Southern California

    Data.gov (United States)

    Federal Laboratory Consortium — The focus of the University of Southern California (USC) Children''s Environmental Health Center is to develop a better understanding of how host susceptibility and...

  9. The universe strikes back

    International Nuclear Information System (INIS)

    Steigman, G.

    1983-01-01

    The approach to particle physics via cosmology may meet with an obstacle in a series of cosmological puzzles studied in this paper: the flatness-longevity puzzle, the horizon-homogenity puzzle, and the cosmological constant puzzle. An analysis of the geometry and dynamics of the universe leads to an understanding (but not solution) of the flatness-longevity puzzle: possible universes are distinguished by the value of the dimensionless quantity N, the coordinate density of ER particles, such that the longevity of the universe is fixed by N. Universes where nonrelativistic particles dominate are then studied. An inflationary scenario proposed as a solution to these puzzles is studied, but found to have some difficulties

  10. Perelman's Universal Audience.

    Science.gov (United States)

    Ray, John W.

    1978-01-01

    Examines the concept of the universal audience as the basic factor of Chaim Perelman's rhetorical theory and concludes that it is subject to the same criticism as Rousseau's general will and Kant's categorical imperative. (JMF)

  11. Performance Measurement at Universities

    DEFF Research Database (Denmark)

    Lueg, Klarissa

    2014-01-01

    This paper proposes empirical approaches to testing the reliability, validity, and organizational effectiveness of student evaluations of teaching (SET) as a performance measurement instrument in knowledge management at the institutional level of universities. Departing from Weber’s concept...

  12. University related studies

    International Nuclear Information System (INIS)

    Anon.

    1976-01-01

    Over the years, opportunities for terrestrial ecology studies have attracted student researchers associated with Pacific Northwest colleges and universities. During the past year, four students have been involved with undergraduate or graduate thesis projects. Brief descriptions of these studies are included in this section. It is expected that university participation will be enhanced by designating parts of the Hanford Reservation as a National Environmental Research Park (NERP)

  13. Mapping the early Universe

    International Nuclear Information System (INIS)

    Anon.

    1991-01-01

    From its unique vantage point 900 kilometres above the earth's surface, NASA's Cosmic Background Explorer (COBE) satellite has a privileged view of cosmic background radiation - the remnants of the early (radiation-dominated) Universe which followed the Big Bang some ten Gigayears ago, and possibly some subsequent history. In this way astroparticle physicists get a first peek at the quantum cosmology which moulded the infant Universe

  14. The Bright Universe Cosmology

    International Nuclear Information System (INIS)

    Surdin, M.

    1980-01-01

    It is shown that viewed from the 'outside', our universe is a black hole. Hence the 'inside' cosmology considered is termed as the Bright Universe Cosmology. The model proposed avoids the singularities of cosmologies of the Big Bang variety, it gives a good account of the redshifts, the cosmic background radiation, the number counts; it also gives a satisfactory explanation of the 'large numbers coincidence' and of the variation in time of fundamental constants. (Auth.)

  15. The universal access handbook

    CERN Document Server

    Stephanidis, Constantine

    2009-01-01

    In recent years, the field of Universal Access has made significant progress in consolidating theoretical approaches, scientific methods and technologies, as well as in exploring new application domains. Increasingly, professionals in this rapidly maturing area require a comprehensive and multidisciplinary resource that addresses current principles, methods, and tools. Written by leading international authorities from academic, research, and industrial organizations and nonmarket institutions, The Universal Access Handbook covers the unfolding scientific, methodological, technological, and pol

  16. Rotating universe models

    International Nuclear Information System (INIS)

    Tozini, A.V.

    1984-01-01

    A review is made of some properties of the rotating Universe models. Godel's model is identified as a generalized filted model. Some properties of new solutions of the Einstein's equations, which are rotating non-stationary Universe models, are presented and analyzed. These models have the Godel's model as a particular case. Non-stationary cosmological models are found which are a generalization of the Godel's metrics in an analogous way in which Friedmann is to the Einstein's model. (L.C.) [pt

  17. Universal computer interfaces

    CERN Document Server

    Dheere, RFBM

    1988-01-01

    Presents a survey of the latest developments in the field of the universal computer interface, resulting from a study of the world patent literature. Illustrating the state of the art today, the book ranges from basic interface structure, through parameters and common characteristics, to the most important industrial bus realizations. Recent technical enhancements are also included, with special emphasis devoted to the universal interface adapter circuit. Comprehensively indexed.

  18. Mapping the early Universe

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1991-06-15

    From its unique vantage point 900 kilometres above the earth's surface, NASA's Cosmic Background Explorer (COBE) satellite has a privileged view of cosmic background radiation - the remnants of the early (radiation-dominated) Universe which followed the Big Bang some ten Gigayears ago, and possibly some subsequent history. In this way astroparticle physicists get a first peek at the quantum cosmology which moulded the infant Universe.

  19. Cultural universals: So what?

    Directory of Open Access Journals (Sweden)

    M. Elaine Botha

    1989-03-01

    Full Text Available The search for the elusive "cultural universal s” in a variety of academic disciplines has been motivated b y the spectre of relativism in its diverse guises. The problem of relativism has been thrust upon us inter alia by the inability of our epistemological models to account for social and cultural, moral and cognitive diversity and to provide us with criteria by means of which to judge aberrations like ideologies. Contrary to the general trend I would like to argue that it is not the spectre of relativism in its various guises which necessitates the search for cultural universals, nor is this the only motivation for a Christian to argue in favour of the recognition of cultural universals. Various authors have suggested that such universal structures do exist; that they condition human and societal behaviour and that it would in principle be possible to construct a theory of these structural universals or a "biogrammar" or "geography ” of the universal cultural acquisition device of humankind (cf. Harre,1976, 32; Johnson, 1987: xxxvii ; Tige r and Fox, 1974:17,30. Cross -cu ltural research in both psychology and anthropology has pointed to the existence of such traits, and in recent philosophical discussions Apel and others have pointed to the necessity of recognizing the existence of some sort of " transcendentalia" . These arguments emphasize elements that are common to diverse approaches to the problem of cultural universals. Christian scholars could accept most of these arguments as valid and yet argue in favour of a very specifically modified version of the notion of cultural universals. This essay attempts to develop such a position.

  20. University contracts summary book

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-08-01

    The principal objectives of the Fossil Energy Program are to seek new ideas, new data, fundamental knowledge that will support the ongoing programs, and new processes to better utilize the nation's fossil energy resources with greater efficiency and environmental acceptability. Toward this end, the Department of Energy supports research projects conducted by universities and colleges to: Ensure a foundation for innovative technology through the use of the capabilities and talents in our academic institutions; provide an effective, two-way channel of communication between the Department of Energy and the academic community; and ensure that trained technical manpower is developed to carry out basic and applied research in support of DOE's mission. Fossil Energy's university activities emphasize the type of research that universities can do best - research to explore the potential of novel process concepts, develop innovative methods and materials for improving existing processes, and obtain fundamental information on the structure of coal and mechanisms of reactions of coal, shale oil, and other fossil energy sources. University programs are managed by different Fossil Energy technical groups; the individual projects are described in greater detail in this book. It is clear that a number of research areas related to the DOE Fossil Energy Program have been appropriate for university involvement, and that, with support from DOE, university scientific and technical expertise can be expected to continue to play a significant role in the advancement of fossil energy technology in the years to come.

  1. Universal Majorana thermoelectric noise

    Science.gov (United States)

    Smirnov, Sergey

    2018-04-01

    Thermoelectric phenomena resulting from an interplay between particle flows induced by electric fields and temperature inhomogeneities are extremely insightful as a tool providing substantial knowledge about the microscopic structure of a given system. By tuning, e.g., parameters of a nanoscopic system coupled via tunneling mechanisms to two contacts, one may achieve various situations where the electric current induced by an external bias voltage competes with the electric current excited by the temperature difference of the two contacts. Even more exciting physics emerges when the system's electronic degrees freedom split to form Majorana fermions which make the thermoelectric dynamics universal. Here, we propose revealing these unique universal signatures of Majorana fermions in strongly nonequilibrium quantum dots via noise of the thermoelectric transport beyond linear response. It is demonstrated that whereas mean thermoelectric quantities are only universal at large-bias voltages, the noise of the electric current excited by an external bias voltage and the temperature difference of the contacts is universal at any bias voltage. We provide truly universal, i.e., independent of the system's parameters, thermoelectric ratios between nonlinear response coefficients of the noise and mean current at large-bias voltages where experiments may easily be performed to uniquely detect these truly universal Majorana thermoelectric signatures.

  2. University students' mental health: Aksaray University example

    Directory of Open Access Journals (Sweden)

    Rezzan Gündoğdu

    2013-11-01

    Full Text Available This study examines whether mental health scores of the university students differ based on gender, whether they study in their ideal majors, whether they are contended with their majors, economic condition perceived and perceptions on employment opportunity after graduation. The sample group of the study constituted 3492 students comprising 2037 female students and 1455 male students attending Faculty of Education (634, Engineering Faculty (1582, Economic and Administrative Sciences Faculty (1097, Faculty of Science and Letters (762, Medical Vocational College (540, Physical Training and Sports College (443 and Aksaray Vocational College (1452 of Aksaray University in 2010-2011 Academic Year. Symptom Checklist (SCL 90-R developed by Deragotis, (1983; eg Öner, 1997 has been used to collect data on mental health level of the students involved in the study. Statistical analysis of the data collected has been carried out using t Test, One-way Analysis of Variance (ANOVA. Significant differences have been found in students in terms of independent variants according to the general symptom average score and numerous sub-scale scores.

  3. University Reactor Instrumentation Program

    International Nuclear Information System (INIS)

    Vernetson, W.G.

    1992-11-01

    Recognizing that the University Reactor Instrumentation Program was developed in response to widespread needs in the academic community for modernization and improvement of research and training reactors at institutions such as the University of Florida, the items proposed to be supported by this grant over its two year period have been selected as those most likely to reduce foreed outages, to meet regulatory concerns that had been expressed in recent years by Nuclear Regulatory Commission inspectors or to correct other facility problems and limitations. Department of Energy Grant Number DE-FG07-90ER129969 was provided to the University of Florida Training Reactor(UFTR) facility through the US Department of Energy's University Reactor Instrumentation Program. The original proposal submitted in February, 1990 requested support for UFTR facility instrumentation and equipment upgrades for seven items in the amount of $107,530 with $13,800 of this amount to be the subject of cost sharing by the University of Florida and $93,730 requested as support from the Department of Energy. A breakdown of the items requested and total cost for the proposed UFTR facility instrumentation and equipment improvements is presented

  4. Recipes for the Universe

    CERN Multimedia

    2005-01-01

    As part of the World Year of Physics, the Physics Section of the University of Geneva is organising a series of conferences for the uninitiated. Each of the conferences will begin with a demonstration in the auditorium of the detection of cosmic rays and, in collaboration with Professor E. Ellberger of the Conservatoire de Musique de Genève, of how these signals from the farthest reaches of the Universe can be used to create "cosmic music". The third conference in the series, "How to build a universe?", will take place on Tuesday 15 March 2005 and the speaker will be the CERN theoretical physicist, John Ellis. A tiny number of elementary particles are responsible for the very diverse universe that surrounds us. These basic building blocks of matter interact by exchanging photons and other similar particles. After summing up what we know about these fundamental building blocks, their role in the history of the universe will be discussed. Where does matter come from? Where do the structures that ...

  5. NUMERICAL MODELING OF STRESSES NEAR THE SURFACE IN THE INGOT OF CIRCULAR SECTION, CRYSTALLIZABLE AT CIRCULAR TORCH SECONDARY COOLING

    Directory of Open Access Journals (Sweden)

    A. N. Chichko

    2004-01-01

    Full Text Available The results of computer calculations of the stresses, generated in outside layer of ingot of steel 20 of circular section with diameter 300 mm, in application to one of the industrial technological schemas of RUP “BMZ”, are presented. The segments of compressive and tensile stresses formation along the length of ingot are determined and the principal possibility of production of continuously cast slug of circular section at circular-torch spray cooling is shown.

  6. Pressure-volume-temperature and excess molar volume prediction of amorphous and crystallizable polymer blends by equation of state

    Institute of Scientific and Technical Information of China (English)

    Fakhri Yousefi; Hajir Karimi; Maryam Gomar

    2015-01-01

    In this work the statistical mechanical equation of state was developed for volumetric properties of crystal ine and amorphous polymer blends. The Ihm–Song–Mason equations of state (ISMEOS) based on temperature and density at melting point (Tm andρm) as scaling constants were developed for crystalline polymers such as poly(propylene glycol)+poly(ethylene glycol)-200 (PPG+PEG-200), poly(ethylene glycol) methyl ether-300 (PEGME-350)+PEG-200 and PEGME-350+PEG-600. Furthermore, for amorphous polymer blends con-taining poly(2,6-dimethyl-1,4-phenylene oxide) (PPO)+polystyrene (PS) and PS+poly(vinylmethylether) (PVME), the density and surface tension at glass transition (ρg andγg) were used for estimation of second Virial coefficient. The calculation of second Virial coefficients (B2), effective van der Waals co-volume (b) and correction factor (α) was required for judgment about applicability of this model. The obtained results by ISMEOS for crys-talline and amorphous polymer blends were in good agreement with the experimental data with absolute aver-age deviations of 0.84%and 1.04%, respectively.

  7. Quantum and Universe

    International Nuclear Information System (INIS)

    Uiler, Dzh.

    1982-01-01

    General approach to the structure of the Universe is discussed. Two properties of physical laws: symmetry and changeability are considered from this view point. Each physical law permits simpler formulation in the notion of symmetry. But the simplicity of this description conceals interval mechanisms which make up the base of the physical law. The problem of physical law stability is analyzed. It is concluded that unrestricted changeability is the main property of physics. Primary attention is paid to the problem of ''quantum and Universe''. The effect of measuring process on the experimental results is the most difficult problem of quantum mechanisms. The quantum principle rejected an attempt to conceptually present the reality as it is pictured independently from its observation and it made the description of the Universe structure still more complicated and confused

  8. Armored glass university ceilings

    Directory of Open Access Journals (Sweden)

    Ana Guil Bozal

    2016-12-01

    Full Text Available The barriers that women face to occupy the highest professional positions are well studied, yet they persist. The employment situation of women has improved, but the positions of power are still predominantly in male hands, as if men continually seek new mechanisms to keep, like viruses that change every year to survive the way vaccines. Barriers persist, although in recent decades women have managed to overcome in quantity and quality to men among university students. Women are still unable to access the best academic positions. Among university faculty only reach 40% and full professor position remain masculinized, having managed to reach the women -after many efforts and some policies- measures only 20%, which is seen clearly insufficient given their greater training. Against this background, the future is difficult, unless the university decided to endorse the cause of equality, going to assume its role of reference for the new generations and to other organizations and society in general.

  9. Baby universe theory

    International Nuclear Information System (INIS)

    Nielsen, H.B.; Ninomiya, Masao

    1989-12-01

    We give an elementary review of the so called 'the theory of baby universes' which is a series of ideas or speculations about some effects in quantum gravity, viz. the effect of a certain type of wormholes, representing the exchange of small 3-space universes called baby universes. We consider this 'theory' as being physically and scientifically a very promising candidate for a theory of everything. It is, however, mathematically lacking any strong foundation at all. It solves several fine-tuning problems: First of all the cosmological constant problem, and also the strong CP-problem and the hierarchy problem. We also speculate that it might predict the possibility of influencing the probability distributions of the outcome of quantum mechanical measurements at one time by acts at a later time. (orig.)

  10. Phonology without universal grammar.

    Science.gov (United States)

    Archangeli, Diana; Pulleyblank, Douglas

    2015-01-01

    The question of identifying the properties of language that are specific human linguistic abilities, i.e., Universal Grammar, lies at the center of linguistic research. This paper argues for a largely Emergent Grammar in phonology, taking as the starting point that memory, categorization, attention to frequency, and the creation of symbolic systems are all nonlinguistic characteristics of the human mind. The articulation patterns of American English rhotics illustrate categorization and systems; the distribution of vowels in Bantu vowel harmony uses frequencies of particular sequences to argue against Universal Grammar and in favor of Emergent Grammar; prefix allomorphy in Esimbi illustrates the Emergent symbolic system integrating phonological and morphological generalizations. The Esimbi case has been treated as an example of phonological opacity in a Universal Grammar account; the Emergent analysis resolves the pattern without opacity concerns.

  11. Electromagnetic Gowdy universe

    International Nuclear Information System (INIS)

    Charach, C.

    1979-01-01

    Following Gowdy and Berger we construct an inhomogeneous closed electromagnetic universe with three-torus topology. This model is obtained as a result of the homogeneity breaking in the electromagnetic Bianchi type-I universe and contains interacting gravitational and electromagnetic waves. This cosmological solution provides an exactly solvable model for the study of the nonlinear fully relativistic regime of coupled electromagnetic and gravitational fields in the early universe. The asymptotic behavior is considered (i) in the vicinity of the initial singularity and (ii) in the high-frequency limit. It is shown that the effects of coupling between electromagnetic and gravitational waves cause an evolution which is significantly different from that of the vacuum model. The influence of the primordial homogeneous electromagnetic field on the dynamics of the model is also discussed

  12. The anamorphic universe

    Science.gov (United States)

    Ijjas, Anna; Steinhardt, Paul J.

    2015-10-01

    We introduce ``anamorphic'' cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant criteria. An advantage of the contracting aspects is that it is possible to avoid the multiverse and measure problems that arise in inflationary models. Unlike ekpyrotic models, anamorphic models can be constructed using only a single field and can generate a nearly scale-invariant spectrum of tensor perturbations. Anamorphic models also differ from pre-big bang and matter bounce models that do not explain the smoothness. We present some examples of cosmological models that incorporate an anamorphic smoothing phase.

  13. The anamorphic universe

    International Nuclear Information System (INIS)

    Ijjas, Anna; Steinhardt, Paul J.

    2015-01-01

    We introduce ''anamorphic'' cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant criteria. An advantage of the contracting aspects is that it is possible to avoid the multiverse and measure problems that arise in inflationary models. Unlike ekpyrotic models, anamorphic models can be constructed using only a single field and can generate a nearly scale-invariant spectrum of tensor perturbations. Anamorphic models also differ from pre-big bang and matter bounce models that do not explain the smoothness. We present some examples of cosmological models that incorporate an anamorphic smoothing phase

  14. The anamorphic universe

    Energy Technology Data Exchange (ETDEWEB)

    Ijjas, Anna; Steinhardt, Paul J., E-mail: aijjas@princeton.edu, E-mail: steinh@princeton.edu [Princeton Center for Theoretical Science, Princeton University, Princeton, NJ, 08544 (United States)

    2015-10-01

    We introduce ''anamorphic'' cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant criteria. An advantage of the contracting aspects is that it is possible to avoid the multiverse and measure problems that arise in inflationary models. Unlike ekpyrotic models, anamorphic models can be constructed using only a single field and can generate a nearly scale-invariant spectrum of tensor perturbations. Anamorphic models also differ from pre-big bang and matter bounce models that do not explain the smoothness. We present some examples of cosmological models that incorporate an anamorphic smoothing phase.

  15. Southern Universities Nuclear Institute

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    The Southern Universities Nuclear Institute was created in 1961 to provide postgraduate research and teaching facilities for the universities of Cape Town and Stellenbosch. The main research tool is the 6,0 MV Van de Graaff accelerator installed in 1964. Developments and improvements over the years have maintained the Institute's research effectiveness. The work of local research groups has led to a large number of M Sc and doctorate degrees and numerous publications in international journals. Research at the Institute includes front-line studies of basic nuclear and atomic physics, the development and application of nuclear analytical techniques and the application of radioisotope tracers to problems in science, industry and medicine. The Institute receives financial support from the two southern universities, the Department of National Education, the CSIR and the Atomic Energy Board

  16. An eternal universe

    International Nuclear Information System (INIS)

    Novello, M.; Heintzmann, H.

    1983-01-01

    A new generalized solution of Maxwell-Einstein equations (which are non-minimally coupled) which leads to some fascinating aspects of the Universe is presented. The Cosmos has no singularity due to the coupling of longitudinal electromagnetism with space-time. It contains the Milne-Schucking cosmos as a limiting case. This model contains a free parameter (the longitudinal electromagnetic field) which allows one to fix the density of highest compression of the Cosmos. Alternativelly the parameter allows one to adjust our cosmos to the presently observed Hubble constant and the deceleration parameter. The model seems to be a viable candidate for our real cosmos as it allows one to extend the time scale of the Universe to arbitrarily large values i.e., it is able to provide the necessary time scale for the origin of life. It is speculated that the entropy is finite but intelligence in the Universe may be infinite. (Author) [pt

  17. The Worldhood university

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard; Nørgård, Rikke Toft

    Universities and higher education today are sites for entanglement of multiple forms of agency and lifeworlds. Enhanced focus is given to higher education strategies and frameworks that integrate more traditional forms of higher education curriculum with moral and political awareness, social agency...... the mode 2 university, where the university is ‘for sale’ (Shumar, 1997) and where higher education curricula are being defined and shaped by the needs and current drivers of the job market and the shifting neoliberalist company strategies. As Ronald Barnett underlines “the contemporary vocabulary...... politically, socially, ethically, and philosophically. It requires, among other things, new conceptions of academic citizenship, belonging in higher education, and what we have called ‘placeful universities’ where “academic citizenship emerges through dialogical integration and ‘Mitsein’ in the critically...

  18. Supercomplexity and the university

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard

    2018-01-01

    Ronald Barnett’s modern classic Realizing the University in an Age of Supercomplexity (published December 1999), has had a crucial impact internationally on the field of Higher Education research and develop- ment since the book was published now nearly 20 years ago. Bridging an academic oeuvre...... across almost 30 years with close to 30 published volumes, Realizing the University in an Age of Supercomplexity plays an important role in the development and transformation of Barnett’s social theory of Higher Education into a social philosophy of Higher Education. In the book Barnett performs...... and vision that fully embraces the future of Higher Education. This way, Realizing the University in an Age of Supercomplexity has not only paved the way for Barnett’s own devel- opment of a social philosophy of Higher Education, but also contributed invaluably to the rise and maturing of philosophy...

  19. A unified universe

    DEFF Research Database (Denmark)

    Codello, Alessandro; Jain, Rajeev Kumar

    2018-01-01

    We present a unified evolution of the universe from very early times until the present epoch by including both the leading local correction R2 and the leading non-local term R1□2R to the classical gravitational action. We find that the inflationary phase driven by R2 term gracefully exits...... in a transitory regime characterized by coherent oscillations of the Hubble parameter. The universe then naturally enters into a radiation dominated epoch followed by a matter dominated era. At sufficiently late times after radiation–matter equality, the non-local term starts to dominate inducing an accelerated...... expansion of the universe at the present epoch. We further exhibit the fact that both the leading local and non-local terms can be obtained within the covariant effective field theory of gravity. This scenario thus provides a unified picture of inflation and dark energy in a single framework by means...

  20. Radioprotection in Brazilian universities

    International Nuclear Information System (INIS)

    Caballero, K.C.; Borges, J.C.

    1992-01-01

    The purpose of this work was to obtain a broad knowledge of the circumstances under which activities involving ionizing radiations are held at brazilian academic institutions. Around 90 institutions (universities and isolated schools of both public and private sectors) were invited, by mail, to answer an inquiry with questions from technical to legal aspects of their activities with radiations. Information received from 2/3 of institutions contacted, permitted conclusions as: there is a wide ignorance about radioprotection procedures and legislation, although few universities maintain some efficient radioprotection staff; there is a need for the establishment of a standard radioprotection text dedicated to those specific activities of the sector. (author)

  1. Universal Lyndon Words

    OpenAIRE

    Carpi, Arturo; Fici, Gabriele; Holub, Stepan; Oprsal, Jakub; Sciortino, Marinella

    2014-01-01

    A word $w$ over an alphabet $\\Sigma$ is a Lyndon word if there exists an order defined on $\\Sigma$ for which $w$ is lexicographically smaller than all of its conjugates (other than itself). We introduce and study \\emph{universal Lyndon words}, which are words over an $n$-letter alphabet that have length $n!$ and such that all the conjugates are Lyndon words. We show that universal Lyndon words exist for every $n$ and exhibit combinatorial and structural properties of these words. We then defi...

  2. Building the universe

    International Nuclear Information System (INIS)

    Sutton, Christine

    1985-01-01

    The book 'In Building the Universe' contains a collection of articles from the magazine 'New Scientist', compiled and edited to provide an overview of the field of particle physics. A picture of the basic constituents of matter (quarks and leptons) is given, together with the four fundamental forces that hold them together. The operation of these forces in the first instance of the hot young Universe is described. Also, the development of the accelerators and detectors used in elementary particle physics, is discussed. (UK)

  3. The 4-percent universe

    CERN Document Server

    Panek, Richard

    2012-01-01

    It is one of the most disturbing aspects of our universe: only four per cent of it consists of the matter that makes up every star, planet, and every book. The rest is completely unknown. Acclaimed science writer Richard Panek tells the story of the handful of scientists who have spent the past few decades on a quest to unlock the secrets of “dark matter" and the even stranger substance called “dark energy". These are perhaps the greatest mysteries in science,and solving them will reshape our understanding of the universe and our place in it. The stakes could not be higher. Panek's fast-paced

  4. The missing universe

    International Nuclear Information System (INIS)

    Springel, V.; Taillet, R.; Deffayet, C.

    2014-01-01

    According to the Big Bang model, ordinary matter would play a second role in the universe compared to 2 mysterious components: dark matter and dark energy. Although the nature of both components is unknown, observational hints for their existence pile up but the direct detection of both has been unsuccessful so far. New ways have been explored to do without the concepts of dark matter and dark energy. This document that is divided into 3 parts presents the observational data that back the idea of dark matter and dark energy, the experimental effort made worldwide to detect dark matter particles, and the other ways to explain universe expansion

  5. Models of the universe

    International Nuclear Information System (INIS)

    Dirac, P.A.M.

    1981-01-01

    Most models of the universe are dependent on the assumption of a uniform distribution of matter, and thus are rather crude, due to the nonlinear nature of Einstein's field equations. Here, a model is proposed which avoids this smoothing-out process. A metric is obtained which is consistent with the assumption that the matter of the universe is concentrated mainly in stars, moving with the velocity of recession implied by Hubble's law. The solution obtained gives results comparable to those obtainable by Schwarzchild metric, suitably adjusted to agree with the Einstein-DeSitter model at large distances

  6. Exponential Cardassian universe

    International Nuclear Information System (INIS)

    Liu Daojun; Sun Changbo; Li Xinzhou

    2006-01-01

    The expectation of explaining cosmological observations without requiring new energy sources is forsooth worthy of investigation. In this Letter, a new kind of Cardassian models, called exponential Cardassian models, for the late-time universe are investigated in the context of the spatially flat FRW universe scenario. We fit the exponential Cardassian models to current type Ia supernovae data and find they are consistent with the observations. Furthermore, we point out that the equation-of-state parameter for the effective dark fluid component in exponential Cardassian models can naturally cross the cosmological constant divide w=-1 that observations favor mildly without introducing exotic material that destroy the weak energy condition

  7. Fundamentals of university mathematics

    CERN Document Server

    McGregor, C M; Stothers, W W

    2010-01-01

    The third edition of this popular and effective textbook provides in one volume a unified treatment of topics essential for first year university students studying for degrees in mathematics. Students of computer science, physics and statistics will also find this book a helpful guide to all the basic mathematics they require. It clearly and comprehensively covers much of the material that other textbooks tend to assume, assisting students in the transition to university-level mathematics.Expertly revised and updated, the chapters cover topics such as number systems, set and functions, differe

  8. Bootstrap, universality and horizons

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Chi-Ming [Center for Theoretical Physics and Department of Physics,University of California, Berkeley, CA 94704 (United States); Lin, Ying-Hsuan [Jefferson Physical Laboratory, Harvard University,Cambridge, MA 02138 (United States)

    2016-10-13

    We present a closed form expression for the semiclassical OPE coefficients that are universal for all 2D CFTs with a “weak” light spectrum, by taking the semiclassical limit of the fusion kernel. We match this with a properly regularized and normalized bulk action evaluated on a geometry with three conical defects, analytically continued in the deficit angles beyond the range for which a metric with positive signature exists. The analytically continued geometry has a codimension-one coordinate singularity surrounding the heaviest conical defect. This singularity becomes a horizon after Wick rotating to Lorentzian signature, suggesting a connection between universality and the existence of a horizon.

  9. The plasma universe

    International Nuclear Information System (INIS)

    Faelthammar, C.G.

    1989-12-01

    The term 'Plasma Universe', coined by Hannes Alfven, emphasices the fact that plasma phenomena discovered in the laboratory and in accessible regions of space. must be important also in the rest of the universe, which consists almost entirely of matter in the plasma state. Relevant aspect of this concept will be discussed. They include the response of the plasma to electric currents, the support of magnetic-field aligned electric fields, violation of the frozen-field condition, rapid release of magnetically stored energy, acceleration of charged particles, chemical separation, and filamentary and cellular structures. (authors)

  10. University-Community Engagement: Case Study of University Social Responsibility

    Science.gov (United States)

    Chile, Love M.; Black, Xavier M.

    2015-01-01

    Corporatisation of universities has drawn parallels between contemporary universities and business corporations, and extended analysis of corporate social responsibility to universities. This article reports on a case study of university-community engagement with schools and school communities through youth engagement programmes to enhance…

  11. Study of university students' attitudes toward office space at universities

    Directory of Open Access Journals (Sweden)

    S.M. Eteadifard

    2017-06-01

    Full Text Available Office space is the space where students first experience the university. In this paper, the attitude of students toward office space in the public sphere of university is discussed. This article is the result of the research conducted for the “Institute for Social and Cultural Studies” by the author. The main issues in this paper are: university students' attitudes towards quality office space at the universities and mental basis of common issues among students at the universities. Data were collected through individual and group interviews. More than eighty interviews with activists and students of University of Tehran, Shahid Beheshti University, Allameh Tabataba’i University, Sharif University of Technology and Kharazmi University were done. The main indicators of office space in this study include: students’ satisfaction of office space, students’ welfare affairs and students’ feedback about this space. Problems and obstacles relating to the office space and their solutions were also studied in this paper.

  12. Universal Precautions: A Review

    African Journals Online (AJOL)

    DATONYE ALASIA

    and hazards could cause devastating effects on. 2 health and ... (splash of blood or other body fluids into the eyes, nose or ... nurses, laboratory staff and aides who work in .... electric hand dryers are available which is ideal. ... self, patient and co-workers from infection. All ... with universal precautions include the absence of ...

  13. Ranganathan : A Universal Librarian

    Directory of Open Access Journals (Sweden)

    Abulfazale M. Fazle Kabir

    2003-06-01

    Full Text Available In formulating Five Laws of Library Science Ranganathan has made a lasting and fundamental contribution to the philosophy of library patron service. His Colon Classification has provided a scheme for hierarchical design of faceted subject classification. For such valuable contribution to the profession he has been acclaimed as a universal librarian.

  14. Universal and Relative Rationality

    Directory of Open Access Journals (Sweden)

    Nathaniel Goldberg

    2009-01-01

    Full Text Available In this paper I illustrate how a basic kind of universal rationality can be profitably combined with undeniable instances of relativism. I do so by engaging Michael Friedman’s recent response to a challenge from Thomas Kuhn.

  15. Entrepreneurship and University Licensing

    NARCIS (Netherlands)

    Brouwer, M.

    2005-01-01

    Outside invention has gained in importance as universities are actively seeking commercialization of their inventions since the passage of the Bayh-Dole Act. The paper analyzes the incentives to invent for outside and inside inventors. It is shown that outside inventors have greater incentives to

  16. Explore Your Universe

    Energy Technology Data Exchange (ETDEWEB)

    Lloyd-Ronning, Nicole Marie [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-05-01

    This warm-up lab is intended to get students familiar with the large numbers encountered in astronomy (e.g. distances, times, numbers of stars and galaxies in the universe). Students will measure the dimensions of the classroom and/or the distance between objects in the classroom, and report their findings in units of millimeters, micrometers and nanometers.

  17. Origin (?) of the Universe

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 3. Origin (?) of the Universe The Big Bang. Jayant V Narlikar. Series Article Volume 1 Issue 3 March 1996 pp 6-12. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/001/03/0006-0012 ...

  18. Discrete bipolar universal integrals

    Czech Academy of Sciences Publication Activity Database

    Greco, S.; Mesiar, Radko; Rindone, F.

    2014-01-01

    Roč. 252, č. 1 (2014), s. 55-65 ISSN 0165-0114 R&D Projects: GA ČR GAP402/11/0378 Institutional support: RVO:67985556 Keywords : bipolar integral * universal integral * Choquet integral Subject RIV: BA - General Mathematics Impact factor: 1.986, year: 2014 http://library.utia.cas.cz/separaty/2014/E/mesiar-0432224.pdf

  19. Universal decoherence in solids.

    Science.gov (United States)

    Chudnovsky, Eugene M

    2004-03-26

    Symmetry implications for the decoherence of quantum oscillations of a two-state system in a solid are studied. When the oscillation frequency is small compared to the Debye frequency, the universal lower bound on the decoherence due to the atomic environment is derived in terms of the macroscopic parameters of the solid, with no unknown interaction constants.

  20. Origin(?) of the Universe

    Indian Academy of Sciences (India)

    weaknesses of the big bang cosmology, conceptual as well as observational. ... They argue that this event marks the origin of the ... a change of the lowest energy state of matter, normally designated as ... Rapid expansion of this kind produces some lasting effects in the universe. .... This attitude coupled with attempted ...

  1. A Universal Phylogenetic Tree.

    Science.gov (United States)

    Offner, Susan

    2001-01-01

    Presents a universal phylogenetic tree suitable for use in high school and college-level biology classrooms. Illustrates the antiquity of life and that all life is related, even if it dates back 3.5 billion years. Reflects important evolutionary relationships and provides an exciting way to learn about the history of life. (SAH)

  2. Telecommunications and Universal Service

    International Development Research Centre (IDRC) Digital Library (Canada)

    The book is intended to provide valuable input to the Universal Service Agency .... Figure 1 is not, of course, drawn to scale for South Africa. .... Such uneconomic customers and areas are mainly found in rural, peripheral, and less favoured regions. ... The United Kingdom is a good example of the enduring nature of this task.

  3. Universities in Transition

    International Development Research Centre (IDRC) Digital Library (Canada)

    The use in this publication of trade names, trademarks, service marks, and similar .... 13 Germany: The Role of Universities in the Learning Economy ... and that there exist good opportunities for learning from each other's experiences. ...... to sell on credit, and/or provide access to markets, introducing the firms to customers.

  4. The Classification of Universes

    International Nuclear Information System (INIS)

    Bjorken, J

    2004-01-01

    We define a universe as the contents of a spacetime box with comoving walls, large enough to contain essentially all phenomena that can be conceivably measured. The initial time is taken as the epoch when the lowest CMB modes undergo horizon crossing, and the final time taken when the wavelengths of CMB photons are comparable with the Hubble scale, i.e. with the nominal size of the universe. This allows the definition of a local ensemble of similarly constructed universes, using only modest extrapolations of the observed behavior of the cosmos. We then assume that further out in spacetime, similar universes can be constructed but containing different standard model parameters. Within this multiverse ensemble, it is assumed that the standard model parameters are strongly correlated with size, i.e. with the value of the inverse Hubble parameter at the final time, in a manner as previously suggested. This allows an estimate of the range of sizes which allow life as we know it, and invites a speculation regarding the most natural distribution of sizes. If small sizes are favored, this in turn allows some understanding of the hierarchy problems of particle physics. Subsequent sections of the paper explore other possible implications. In all cases, the approach is as bottoms up and as phenomenological as possible, and suggests that theories of the multiverse so constructed may in fact lay some claim of being scientific

  5. Earth and Universe

    Energy Technology Data Exchange (ETDEWEB)

    Kosygin, Yu A

    1986-12-01

    Rocks, the age of which according to certain data exceeds considerably the recognized age of the Earth and approximates the age of the Universe, have been detected on the Earth. There is a necessity to coordinate the geological data with cosmological structures.

  6. Organizing University Marketing.

    Science.gov (United States)

    Taylor, Thomas E.

    During a period of projected declining enrollments some years ago, colleges and universities began looking to business and industry for models and methods to achieve stability and exhibit accountability. Zero-based budgeting, computerized record keeping, and planned-programmed-budgeting systems found their way to college campuses. A trend to…

  7. Romanians decipher the Universe

    CERN Multimedia

    Balan, Sorin

    2007-01-01

    We are at the European Nuclear Research Center, the greatest partcile accelerator in the world. Approximately 50 people work here. Thanks to them, Romania can be proud of taking part in the greatest experiment in the world that tries to find an explanation for the ofrmation of the Universe. (1,5 page)

  8. Towards Universal Semantic Tagging

    NARCIS (Netherlands)

    Abzianidze, Lasha; Bos, Johan

    2017-01-01

    The paper proposes the task of universal semantic tagging---tagging word tokens with language-neutral, semantically informative tags. We argue that the task, with its independent nature, contributes to better semantic analysis for wide-coverage multilingual text. We present the initial version of

  9. Parallel universes beguile science

    CERN Multimedia

    2007-01-01

    A staple of mind-bending science fiction, the possibility of multiple universes has long intrigued hard-nosed physicists, mathematicians and cosmologists too. We may not be able -- as least not yet -- to prove they exist, many serious scientists say, but there are plenty of reasons to think that parallel dimensions are more than figments of eggheaded imagination.

  10. Universities and National Laboratories

    Indian Academy of Sciences (India)

    knowledge, etc. in the curriculum of the Institute of Technology at Kharagpur. The. University of ... Nothing can be farther from reality. If the powers that can ... have moved and mixed and have had my being in the student community. I claim that.

  11. The Classification of Universes

    Energy Technology Data Exchange (ETDEWEB)

    Bjorken, J

    2004-04-09

    We define a universe as the contents of a spacetime box with comoving walls, large enough to contain essentially all phenomena that can be conceivably measured. The initial time is taken as the epoch when the lowest CMB modes undergo horizon crossing, and the final time taken when the wavelengths of CMB photons are comparable with the Hubble scale, i.e. with the nominal size of the universe. This allows the definition of a local ensemble of similarly constructed universes, using only modest extrapolations of the observed behavior of the cosmos. We then assume that further out in spacetime, similar universes can be constructed but containing different standard model parameters. Within this multiverse ensemble, it is assumed that the standard model parameters are strongly correlated with size, i.e. with the value of the inverse Hubble parameter at the final time, in a manner as previously suggested. This allows an estimate of the range of sizes which allow life as we know it, and invites a speculation regarding the most natural distribution of sizes. If small sizes are favored, this in turn allows some understanding of the hierarchy problems of particle physics. Subsequent sections of the paper explore other possible implications. In all cases, the approach is as bottoms up and as phenomenological as possible, and suggests that theories of the multiverse so constructed may in fact lay some claim of being scientific.

  12. PBL at Aalborg university

    DEFF Research Database (Denmark)

    From the preface: "All the articles in this book have been presented at the International Conference PBL 2006 ABP, that was held in Lima, Peru, July 19th-21th 2006. This conference is part of a series of Pan-American conferences. It is the first time that Aalborg University has participated...

  13. Teaching Geomorphology at University

    Science.gov (United States)

    Sugden, David; Hamilton, Patrick

    1978-01-01

    Geomorphology courses in British universities emphasize the main landform/process systems rather than more abstract concepts. Recommends a more theoretical focus on fundamental geomorphic processes and methodological problems. Available from: Faculty of Modern Studies, Oxford Polytechnic, Headington, Oxford OX3 OBP, England. (Author/AV)

  14. Universal Cable Brackets

    Science.gov (United States)

    Vanvalkenburgh, C.

    1985-01-01

    Concept allows routing easily changed. No custom hardware required in concept. Instead, standard brackets cut to length and installed at selected locations along cable route. If cable route is changed, brackets simply moved to new locations. Concept for "universal" cable brackets make it easy to route electrical cable around and through virtually any structure.

  15. A Universe of Questions.

    Science.gov (United States)

    Zeldovich, Yakov

    1992-01-01

    Reprinted from the original Russian manuscript of Yakov Zeldovich, this article chronicles his studies of the universe and his attempts to construct a theory of its evolution. He provides the high school student with compelling cosmological discussions about uniformity, galactic clusters, radiation, evolution, the big bang, and gravitational…

  16. Universe opacity and EBL

    Czech Academy of Sciences Publication Activity Database

    Vavryčuk, Václav

    2017-01-01

    Roč. 465, č. 2 (2017), s. 1532-1542 ISSN 0035-8711 Institutional support: RVO:67985530 Keywords : cosmic background radiation * dust, extinction * early Universe * galaxies: high redshift * galaxies: ISM * intergalactic medium Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics OBOR OECD: Astronomy (including astrophysics,space science) Impact factor: 4.961, year: 2016

  17. University of Maryland MRSEC

    Science.gov (United States)

    operation. This site remains as a history of the center, but will not be actively maintained. University of . Crystals are made up of layers, or "planes" of atoms, perfectly stacked in an ordered pattern . Because this surface has been cut at a slight angle to the crystal planes, it appears "stepped"

  18. Empirically sampling Universal Dependencies

    DEFF Research Database (Denmark)

    Schluter, Natalie; Agic, Zeljko

    2017-01-01

    Universal Dependencies incur a high cost in computation for unbiased system development. We propose a 100% empirically chosen small subset of UD languages for efficient parsing system development. The technique used is based on measurements of model capacity globally. We show that the diversity o...

  19. University Student Online Plagiarism

    Science.gov (United States)

    Wang, Yu-mei

    2008-01-01

    This article reports a study investigating university student online plagiarism. The following questions are investigated: (a) What is the incidence of student online plagiarism? (b) What are student perceptions regarding online plagiarism? (c) Are there any differences in terms of student perceptions of online plagiarism and print plagiarism? (d)…

  20. Chaotic universe model.

    Science.gov (United States)

    Aydiner, Ekrem

    2018-01-15

    In this study, we consider nonlinear interactions between components such as dark energy, dark matter, matter and radiation in the framework of the Friedman-Robertson-Walker space-time and propose a simple interaction model based on the time evolution of the densities of these components. By using this model we show that these interactions can be given by Lotka-Volterra type equations. We numerically solve these coupling equations and show that interaction dynamics between dark energy-dark matter-matter or dark energy-dark matter-matter-radiation has a strange attractor for 0 > w de  >-1, w dm  ≥ 0, w m  ≥ 0 and w r  ≥ 0 values. These strange attractors with the positive Lyapunov exponent clearly show that chaotic dynamics appears in the time evolution of the densities. These results provide that the time evolution of the universe is chaotic. The present model may have potential to solve some of the cosmological problems such as the singularity, cosmic coincidence, big crunch, big rip, horizon, oscillation, the emergence of the galaxies, matter distribution and large-scale organization of the universe. The model also connects between dynamics of the competing species in biological systems and dynamics of the time evolution of the universe and offers a new perspective and a new different scenario for the universe evolution.

  1. 9. Universality and Incomputability

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 2; Issue 10. Algorithms - Universality and Incomputability. R K Shyamasundar. Series Article ... Author Affiliations. R K Shyamasundar1. Computer Science Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India ...

  2. Type II universal spacetimes

    Czech Academy of Sciences Publication Activity Database

    Hervik, S.; Málek, Tomáš; Pravda, Vojtěch; Pravdová, Alena

    2015-01-01

    Roč. 32, č. 24 (2015), s. 245012 ISSN 0264-9381 R&D Projects: GA ČR GA13-10042S Institutional support: RVO:67985840 Keywords : einstein spacetimes * generalized gravities * universal spacetimes Subject RIV: BA - General Mathematics Impact factor: 2.837, year: 2015 http://iopscience.iop.org/article/10.1088/0264-9381/32/24/245012

  3. The Universe's First Fireworks

    Science.gov (United States)

    2006-01-01

    [figure removed for brevity, see original site] [figure removed for brevity, see original site] [figure removed for brevity, see original site] Poster VersionFigure 1Figure 2 This is an image from NASA's Spitzer Space Telescope of stars and galaxies in the Ursa Major constellation. This infrared image covers a region of space so large that light would take up to 100 million years to travel across it. Figure 1 is the same image after stars, galaxies and other sources were masked out. The remaining background light is from a period of time when the universe was less than one billion years old, and most likely originated from the universe's very first groups of objects -- either huge stars or voracious black holes. Darker shades in the image on the left correspond to dimmer parts of the background glow, while yellow and white show the brightest light. Brief History of the Universe In figure 2, the artist's timeline chronicles the history of the universe, from its explosive beginning to its mature, present-day state. Our universe began in a tremendous explosion known as the Big Bang about 13.7 billion years ago (left side of strip). Observations by NASA's Cosmic Background Explorer and Wilkinson Anisotropy Microwave Probe revealed microwave light from this very early epoch, about 400,000 years after the Big Bang, providing strong evidence that our universe did blast into existence. Results from the Cosmic Background Explorer were honored with the 2006 Nobel Prize for Physics. A period of darkness ensued, until about a few hundred million years later, when the first objects flooded the universe with light. This first light is believed to have been captured in data from NASA's Spitzer Space Telescope. The light detected by Spitzer would have originated as visible and ultraviolet light, then stretched, or redshifted, to lower-energy infrared wavelengths during its long voyage to reach us across expanding space. The light detected by the Cosmic Background Explorer and the

  4. Exploring the relationship between university internationalization and university autonomy

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Gullieva, Valeria

    This paper explores a research gap at the intersection of university internationalization and university autonomy. A process model of university internationalization is put forward whereby the process of university internationalization is mediated by university internationalization capacity...... and moderated by target country institutional autonomy and globalization; and entry modes, timing and pace, as well as product mix of internationalization define university’s internationalization pattern. A systematic review is conducted to identify empirical studies at this intersection. One of the questions...

  5. The Artful Universe Expanded

    Science.gov (United States)

    Barrow, John D.

    2005-07-01

    Our love of art, writes John Barrow, is the end product of millions of years of evolution. How we react to a beautiful painting or symphony draws upon instincts laid down long before humans existed. Now, in this enhanced edition of the highly popular The Artful Universe , Barrow further explores the close ties between our aesthetic appreciation and the basic nature of the Universe. Barrow argues that the laws of the Universe have imprinted themselves upon our thoughts and actions in subtle and unexpected ways. Why do we like certain types of art or music? What games and puzzles do we find challenging? Why do so many myths and legends have common elements? In this eclectic and entertaining survey, Barrow answers these questions and more as he explains how the landscape of the Universe has influenced the development of philosophy and mythology, and how millions of years of evolutionary history have fashioned our attraction to certain patterns of sound and color. Barrow casts the story of human creativity and thought in a fascinating light, considering such diverse topics as our instinct for language, the origins and uses of color in nature, why we divide time into intervals as we do, the sources of our appreciation of landscape painting, and whether computer-generated fractal art is really art. Drawing on a wide variety of examples, from the theological questions raised by St. Augustine and C.S. Lewis to the relationship between the pure math of Pythagoras and the music of the Beatles, The Artful Universe Expanded covers new ground and enters a wide-ranging debate about the meaning and significance of the links between art and science.

  6. Universe or Multiverse?

    Science.gov (United States)

    Carr, Bernard

    2009-08-01

    Part I. Overviews: 1. Introduction and overview Bernard Carr; 2. Living in the multiverse Steven Weinberg; 3. Enlightenment, knowledge, ignorance, temptation Frank Wilczek; Part II. Cosmology and Astrophysics: 4. Cosmology and the multiverse Martin J. Rees; 5. The anthropic principle revisited Bernard Carr; 6. Cosmology from the top down Stephen Hawking; 7. The multiverse hierarchy Max Tegmark; 8. The inflationary universe Andrei Linde; 9. A model of anthropic reasoning: the dark to ordinary matter ratio Frank Wilczek; 10. Anthropic predictions: the case of the cosmological constant Alexander Vilenkin; 11. The definition and classification of universes James D. Bjorken; 12. M/string theory and anthropic reasoning Renata Kallosh; 13. The anthropic principle, dark energy and the LHC Savas Dimopoulos and Scott Thomas; Part III. Particle Physics and Quantum Theory: 14. Quarks, electrons and atoms in closely related universes Craig J. Hogan; 15. The fine-tuning problems of particle physics and anthropic mechanisms John F. Donoghue; 16. The anthropic landscape of string theory Leonard Susskind; 17. Cosmology and the many worlds interpretation of quantum mechanics Viatcheslav Mukhanov; 18. Anthropic reasoning and quantum cosmology James B. Hartle; 19. Micro-anthropic principle for quantum theory Brandon Carter; Part IV. More General Philosophical Issues: 20. Scientific alternatives to the anthropic principle Lee Smolin; 21. Making predictions in a multiverse: conundrums, dangers, coincidences Anthony Aguirre; 22. Multiverses: description, uniqueness and testing George Ellis; 23. Predictions and tests of multiverse theories Don N. Page; 24. Observation selection theory and cosmological fine-tuning Nick Bostrom; 25. Are anthropic arguments, involving multiverses and beyond, legitimate? William R. Stoeger; 26. The multiverse hypothesis: a theistic perspective Robin Collins; 27. Living in a simulated universe John D. Barrow; 28. Universes galore: where will it all end? Paul

  7. Life at a Teaching University

    Science.gov (United States)

    Marineau, Josiah F.

    2018-01-01

    Many new political science faculty at teaching universities are recent PhD recipients, and are coming to these institutions from research-oriented universities. There are considerable differences between the training for graduate students received at research universities and the expectations for faculty at teaching universities. This essay…

  8. Universities Venture into Venture Capitalism.

    Science.gov (United States)

    Desruisseaux, Paul

    2000-01-01

    Reports that some universities are starting their own venture-capital funds to develop campus companies, or are investing endowment funds with established venture-capital firms inclined to finance potential spinoffs from campus research. Examples cited are from the University of Alabama, Vanderbilt University (Tennessee), University of…

  9. The future of the universe

    CERN Document Server

    Meadows, AJ

    2007-01-01

    Many books have described how the universe became the way it is today. But what about the future of the universe? How long might the universe as we recognize it survive? The Future of the Universe takes the reader on a journey through space and time, beginning with a long look at the Earth and solar system, voyaging to the outermost galaxies, and finishing with speculations about the life and fate of the entire universe.

  10. The universal Higgs fit

    DEFF Research Database (Denmark)

    Giardino, P. P.; Kannike, K.; Masina, I.

    2014-01-01

    We perform a state-of-the-art global fit to all Higgs data. We synthesise them into a 'universal' form, which allows to easily test any desired model. We apply the proposed methodology to extract from data the Higgs branching ratios, production cross sections, couplings and to analyse composite...... Higgs models, models with extra Higgs doublets, supersymmetry, extra particles in the loops, anomalous top couplings, and invisible Higgs decays into Dark Matter. Best fit regions lie around the Standard Model predictions and are well approximated by our 'universal' fit. Latest data exclude the dilaton...... as an alternative to the Higgs, and disfavour fits with negative Yukawa couplings. We derive for the first time the SM Higgs boson mass from the measured rates, rather than from the peak positions, obtaining M-h = 124.4 +/- 1.6 GeV....

  11. Universality of accelerating change

    Science.gov (United States)

    Eliazar, Iddo; Shlesinger, Michael F.

    2018-03-01

    On large time scales the progress of human technology follows an exponential growth trend that is termed accelerating change. The exponential growth trend is commonly considered to be the amalgamated effect of consecutive technology revolutions - where the progress carried in by each technology revolution follows an S-curve, and where the aging of each technology revolution drives humanity to push for the next technology revolution. Thus, as a collective, mankind is the 'intelligent designer' of accelerating change. In this paper we establish that the exponential growth trend - and only this trend - emerges universally, on large time scales, from systems that combine together two elements: randomness and amalgamation. Hence, the universal generation of accelerating change can be attained by systems with no 'intelligent designer'.

  12. Pythagorean Philolaus’ Pyrocentric Universe

    Directory of Open Access Journals (Sweden)

    Maniatis, Yiorgo

    2009-06-01

    Full Text Available In this work, first, I reexamine the pyrocentric universe of the Pythagorean, Philolaus, who emphatically propounded that the center of the cosmos is neither the earth nor the sun, but a central fiery hearth that stands in the middle of the spherical universe. Second, I attempt to demonstrate the value and significance of this pyrocentric cosmic model by elaborating its novel revolutionary elements and its contribution to astronomy. Third, by underlining the diachroneity and timeliness of this cosmic model, I try to establish as to how the model served as a precursor to not only the ancient and modern heliocentric models, as widely believed, but also as much to the contemporary cosmic models and theories of astrophysics.

  13. Universality for quintessence

    Energy Technology Data Exchange (ETDEWEB)

    Cicciarella, F. [Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa (Italy); Pieroni, M., E-mail: f.cicciarella1@gmail.com, E-mail: mauro.pieroni@apc.in2p3.fr [AstroParticule et Cosmologie, Université Paris Diderot, CNRS, CEA, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, F-75205 Paris Cedex 13 (France)

    2017-08-01

    Several recent works suggested the possibility of describing inflation by means of a renormalization group equation. In this paper we discuss the application of these methods to models of quintessence. In this framework a period of exponential expansion corresponds to the slow evolution of the scalar field in the neighborhood of a fixed point. A minimal set of universality classes for models of quintessence is defined and the transition from a matter dominated to quintessence dominated universe is studied. Models in which quintessence is non-minimally coupled with gravity are also discussed. We show that the formalism proves to be extremely convenient to describe quintessence and moreover we find that in most of the models discussed in this work quintessence naturally takes over ordinary matter.

  14. Improving University Research Value

    Directory of Open Access Journals (Sweden)

    Kelley O’Reilly

    2012-07-01

    Full Text Available This article investigates the current data management practices of university researchers at an Intermountain West land-grant research university in the United States. Key findings suggest that researchers are primarily focused on the collection and housing of research data. However, additional research value exists within the other life cycle stages for research data—specifically in the stages of delivery and maintenance. These stages are where most new demands and requirements exist for data management plans and policies that are conditional for external grant funding; therefore, these findings expose a “gap” in current research practice. These findings should be of interest to academics and practitioners alike as findings highlight key management gaps in the life cycle of research data. This study also suggests a course of action for academic institutions to coalesce campus-wide assets to assist researchers in improving research value.

  15. Atoms against the universe

    International Nuclear Information System (INIS)

    Senovilla, J.; Raul Vera, M.M.

    1999-01-01

    In Woody Allen's masterpiece Annie Hall the main character is worried about the expansion of the universe. Indeed, during a childhood visit to his psychiatrist, his mother admonishes him: ''You're here in Brooklyn! Brooklyn is not expanding!''. But is that really true? Relativists have attacked this naive question many times and have arrived at different answers. New light has now been thrown on the subject by William Bonnor from Queen Mary and Westfield College in London by considering the influence of the expanding universe on the size of the hydrogen atom (Class. Quantum Grav. 1999 16 1313). According to Bonner's calculations we can conclude that the cosmic expansion does not affect human-scale objects like laboratories and our bodies. In this article the authors explain the reasoning behind this research and its thought provoking consequences. (UK)

  16. Universal quantum interfaces

    International Nuclear Information System (INIS)

    Lloyd, Seth; Landahl, Andrew J.; Slotine, Jean-Jacques E.

    2004-01-01

    To observe or control a quantum system, one must interact with it via an interface. This article exhibits simple universal quantum interfaces--quantum input/output ports consisting of a single two-state system or quantum bit that interacts with the system to be observed or controlled. It is shown that under very general conditions the ability to observe and control the quantum bit on its own implies the ability to observe and control the system itself. The interface can also be used as a quantum communication channel, and multiple quantum systems can be connected by interfaces to become an efficient universal quantum computer. Experimental realizations are proposed, and implications for controllability, observability, and quantum information processing are explored

  17. Universal Test Facility

    Science.gov (United States)

    Laughery, Mike

    A universal test facility (UTF) for Space Station Freedom is developed. In this context, universal means that the experimental rack design must be: automated, highly marketable, and able to perform diverse microgravity experiments according to NASA space station requirements. In order to fulfill these broad objectives, the facility's customers, and their respective requirements, are first defined. From these definitions, specific design goals and the scope of the first phase of this project are determined. An examination is first made into what types of research are most likely to make the UTF marketable. Based on our findings, the experiments for which the UTF would most likely be used included: protein crystal growth, hydroponics food growth, gas combustion, gallium arsenide crystal growth, microorganism development, and cell encapsulation. Therefore, the UTF is designed to fulfill all of the major requirements for the experiments listed above. The versatility of the design is achieved by taking advantage of the many overlapping requirements presented by these experiments.

  18. Mapping the universe.

    Science.gov (United States)

    Geller, M J; Huchra, J P

    1989-11-17

    Maps of the galaxy distribution in the nearby universe reveal large coherent structures. The extent of the largest features is limited only by the size of the survey. Voids with a density typically 20 percent of the mean and with diameters of 5000 km s(-1) are present in every survey large enough to contain them. Many galaxies lie in thin sheet-like structures. The largest sheet detected so far is the "Great Wall" with a minimum extent of 60 h(-1) Mpc x 170 h(-1) Mpc, where h is the Hubble constant in units of 100 km s(-1) Mpc(-1). The frequent occurrence of these structures is one of several serious challenges to our current understanding of the origin and evolution of the large-scale distribution of matter in the universe.

  19. Life in the Universe

    Science.gov (United States)

    2001-10-01

    Live Webcast from Europe's Leading Research Organisations Summary Is there life elsewhere in the Universe? Are we alone? These questions have always fascinated humanity and for more than 50 years, physicists, biologists, chemists, cosmologists, astronomers and other scientists have worked tirelessly to answer these fundamental questions. And now this November via webcast, all the world will have the opportunity to see and hear the latest news on extraterrestrial life from the most prestigious research centers and how for the past three months, European students have had the chance to jump into the scientists' shoes and explore these questions for themselves. The event is being sponsored by the European Organisation for Nuclear Research (CERN) , the European Space Agency (ESA) and the European Southern Observatory (ESO) , in cooperation with the European Molecular Biology Laboratory (EMBL) and the European Synchrotron Radiation Facility (ESRF) and the European Association for Astronomy Education (EAAE). "Life in the Universe" is being mounted in collaboration with the Research Directorate-General of the European Commission for the European Week of Science and Technology in November 2001 . "Life in the Universe" competitions are already underway in 23 European countries to find the best projects from school students between 14 and 18. Two winning teams from each country will be invited to a final event at CERN in Geneva on 8-11 November 2001 to present their projects and discuss them with a panel of International Experts at a special three-day event. They will also compete for the "Super Prize" - a free visit to ESA's and ESO's research and technology facilities at Kourou and Paranal in South America. Students participating in the programme are encouraged to present their views on extraterrestrial life creatively. The only requirement is that the views be based upon scientific evidence. Many projects are being submitted just now - among them are scientific essays

  20. University Reactor Sharing Program

    International Nuclear Information System (INIS)

    Reese, W.D.

    2004-01-01

    Research projects supported by the program include items such as dating geological material and producing high current super conducting magnets. The funding continues to give small colleges and universities the valuable opportunity to use the NSC for teaching courses in nuclear processes; specifically neutron activation analysis and gamma spectroscopy. The Reactor Sharing Program has supported the construction of a Fast Neutron Flux Irradiator for users at New Mexico Institute of Mining and Technology and the University of Houston. This device has been characterized and has been found to have near optimum neutron fluxes for A39/Ar 40 dating. Institution final reports and publications resulting from the use of these funds are on file at the Nuclear Science Center

  1. Geneva University - Cancelled

    CERN Multimedia

    Université de Genève

    2010-01-01

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVA 4 Tel: (022) 379 62 73 - Fax: (022) 379 69 92 Monday 19 April 2010 17h00 - Stückelberg Auditorium Into the darkness: Simulating the distribution of dark matter in our Universe Prof. Volker Springel - Heidelberg Institute for Theoretical Studies   THE COLLOQUIUM IS CANCELLED. Prof. Markus Büttiker

  2. Building baby universes

    Science.gov (United States)

    Coles, Peter

    2017-08-01

    The thought of a scientist trying to design a laboratory experiment in which to create a whole new universe probably sounds like it belongs in the plot of a science-fiction B-movie. But as author Zeeya Merali explains in her new book A Big Bang in a Little Room, there are more than a few eminent physicists who think that this is theoretically possible.

  3. Dark matter universe

    Science.gov (United States)

    Bahcall, Neta A.

    2015-01-01

    Most of the mass in the universe is in the form of dark matter—a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations—from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quantify its amount and distribution, assuming general relativity is valid. The data inform us that the dark matter is nonbaryonic, is “cold” (i.e., moves nonrelativistically in the early universe), and interacts only weakly with matter other than by gravity. The current Lambda cold dark matter cosmology—a simple (but strange) flat cold dark matter model dominated by a cosmological constant Lambda, with only six basic parameters (including the density of matter and of baryons, the initial mass fluctuations amplitude and its scale dependence, and the age of the universe and of the first stars)—fits remarkably well all the accumulated data. However, what is the dark matter? This is one of the most fundamental open questions in cosmology and particle physics. Its existence requires an extension of our current understanding of particle physics or otherwise point to a modification of gravity on cosmological scales. The exploration and ultimate detection of dark matter are led by experiments for direct and indirect detection of this yet mysterious particle. PMID:26417091

  4. The Modern University, Ltd.

    OpenAIRE

    Frost, Tom

    2015-01-01

    Today, the university in the United Kingdom (UK) appears to be being led far from its educational, egalitarian roots. It appears to be a corporate beast, increasingly marketised, commodified and commercialised. In recent years, many words have been written on this matter. In this article, I wish to consider how these perceived changes could affect a cherished notion for academics – academic freedom. I connect the marketisation of UK higher education to the (comparatively) recent economic chan...

  5. State of the universe

    Energy Technology Data Exchange (ETDEWEB)

    Bath, G [ed.

    1980-01-01

    A survey is presented of the history of the universe, its origin, the structure and evolution of galaxies, the origin of the chemical elements, determination of the fundamental properties of stars, the properties of black holes, x-ray observations of galactic and extragalactic x-ray sources, exploration of the planets by planetary fly-bys and probes, and a survey of the whole electromagnetic spectrum which emphasizes the importance of each spectral region. (GHT)

  6. For information: Geneva University

    CERN Multimedia

    2005-01-01

    Ecole de physique Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 TéL: (022) 379 62 73 Fax: (022) 379 69 92 Lundi 5 décembre COLLOQUE DE PHYSIQUE at 17:00 - Stückelberg Auditorium ARCHEOLOGY OF THE UNIVERSE WITH THE COSMIC MICROWAVE BACKGROUND by Prof. Paolo de Bernardis / Université de Rome 'La Sapienza'

  7. Life In The Universe!

    CERN Multimedia

    2001-01-01

    Is there life elsewhere in the Universe? Are we alone? These questions have always fascinated humanity and for more than 30 years, physicists, biologists, chemists, cosmologists and astronomers have worked tirelessly to answer these questions. Yet just this past week at CERN students from all over Europe came to present their ideas on the subject and listen to the latest on extraterrestrial life from some of the world's most prestigious researchers.

  8. Dark matter universe.

    Science.gov (United States)

    Bahcall, Neta A

    2015-10-06

    Most of the mass in the universe is in the form of dark matter--a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations--from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quantify its amount and distribution, assuming general relativity is valid. The data inform us that the dark matter is nonbaryonic, is "cold" (i.e., moves nonrelativistically in the early universe), and interacts only weakly with matter other than by gravity. The current Lambda cold dark matter cosmology--a simple (but strange) flat cold dark matter model dominated by a cosmological constant Lambda, with only six basic parameters (including the density of matter and of baryons, the initial mass fluctuations amplitude and its scale dependence, and the age of the universe and of the first stars)--fits remarkably well all the accumulated data. However, what is the dark matter? This is one of the most fundamental open questions in cosmology and particle physics. Its existence requires an extension of our current understanding of particle physics or otherwise point to a modification of gravity on cosmological scales. The exploration and ultimate detection of dark matter are led by experiments for direct and indirect detection of this yet mysterious particle.

  9. Universe opacity and CMB

    Science.gov (United States)

    Vavryčuk, Václav

    2018-04-01

    A cosmological model, in which the cosmic microwave background (CMB) is a thermal radiation of intergalactic dust instead of a relic radiation of the Big Bang, is revived and revisited. The model suggests that a virtually transparent local Universe becomes considerably opaque at redshifts z > 2 - 3. Such opacity is hardly to be detected in the Type Ia supernova data, but confirmed using quasar data. The opacity steeply increases with redshift because of a high proper density of intergalactic dust in the previous epochs. The temperature of intergalactic dust increases as (1 + z) and exactly compensates the change of wavelengths due to redshift, so that the dust radiation looks apparently like the radiation of the blackbody with a single temperature. The predicted dust temperature is TD = 2.776 K, which differs from the CMB temperature by 1.9% only, and the predicted ratio between the total CMB and EBL intensities is 13.4 which is close to 12.5 obtained from observations. The CMB temperature fluctuations are caused by EBL fluctuations produced by galaxy clusters and voids in the Universe. The polarization anomalies of the CMB correlated with temperature anisotropies are caused by the polarized thermal emission of needle-shaped conducting dust grains aligned by large-scale magnetic fields around clusters and voids. A strong decline of the luminosity density for z > 4 is interpreted as the result of high opacity of the Universe rather than of a decline of the global stellar mass density at high redshifts.

  10. The Flying University

    Science.gov (United States)

    Friesen, Catherine

    The Flying University is solo theater performance framed as an academic lecture about Marie Curie and her discovery of radium, delivered to a group of women who have gathered in secret to further their education. As the lecture proceeds, the professor brings in her own research based on a study of Esther Horsch (1905-1991) who lived on a farm in central Illinois. She introduces data from Esther's journals, personal memories, and dreams about Esther's life. The professor's investigation of radium plays at the intersections of magical and mundane, decay and the transformation of life, and the place of ambition in these two women's lives. The intention of this piece is to explore these themes, which are full of mystery, through the traces of the daily lives of Mme. Curie and Esther. Their words and photos are used as roots from which to imagine the things that echo beyond their familiar work; elemental and also fantastically radiant. The Flying University was written and performed by Catherine Friesen April 27-29, 2012 in the Center for Performance Experiment at Hamilton College as part of the University of South Carolina MFA Acting Class of 2013 showcase, Pieces of Eight.

  11. The inflationary universe

    International Nuclear Information System (INIS)

    Guth, A.; Steinhardt, P.

    1989-01-01

    The new inflationary cosmological model discussed here in terms of grand unified theories (GUTs) seems to offer solutions to all the problems associated with the big bang model, such as the existence of magnetic monopoles. Before the first 10 -30 s of the existence of the universe, a brief period of extraordinarily rapid expansion occurred according to the ''inflation'' model. Successes of the big bang model include the three standard testable predictions, but relate to time a second or two after the big bang, namely red-shifts of distant, receding galaxies, measured in the 1920s, the existence of a microwave background radiation, confirmed in 1964, and the abundance of light atomic nuclei such as Helium, Hydrogen and Lithium. Two problems posed by the big bang theory are the horizon problem which seeks an answer to the large-scale uniformity of the universe and the question of energy density which leads to questions about whether the universe is closed, open, or flat. In this new inflationary model the phase transition is driven by random fluctuations of the Higgs fields, thus overcoming the flaw in the original model. (U.K.)

  12. [Universal electrogustometer EG-2].

    Science.gov (United States)

    Wałkanis, Andrzej; Czesak, Michał; Pleskacz, Witold A

    2011-01-01

    Electrogustometry is a method for taste diagnosis and measurement. The EG-2 project is being developed in cooperation between Warsaw University of Technology and Military institute of Medicine in Warsaw. The device is an evolution of the recent universal electrogustometer EG-1 prototype. Due to considerations and experiences acquired during prototype usage, many enhancements have been incorporated into device. The aim was to create an easy-to-use, portable, battery powered device, enabled for fast measurements. Developed electrogustometer is using innovative, low-power microprocessor system, which control whole device. User interface is based on 5.7" graphical LCD (Liquid Crystal Display) and touchscreen. It can be directly operated by finger or with optional stylus. Dedicated GUI (Graphical User Interface) offers simple, predefined measurements and advance settings of signal parameters. It is also possible to store measurements results and patients data in an internal memory. User interface is multilanguage. Signals for patients examinations, supplied with bipolar electrode, are generated by an on-board circuit using DDS (Direct-Digital Synthesis) and DAC (Digital-to-Analog Converter). Electrogustometer is able to generate DC, sinus, triangle or rectangle signals with current amplitude from 0 to 500 pA and frequency form 0 to 500 Hz. Device is designed for manual and automeasurement modes. By using USB (Universal Serial Bus) port it is possible to retrieve data stored in internal memory and charging of built-in Li-lon battery as a source of power.

  13. Universal elements of fragmentation

    International Nuclear Information System (INIS)

    Yanovsky, V. V.; Tur, A. V.; Kuklina, O. V.

    2010-01-01

    A fragmentation theory is proposed that explains the universal asymptotic behavior of the fragment-size distribution in the large-size range, based on simple physical principles. The basic principles of the theory are the total mass conservation in a fragmentation process and a balance condition for the energy expended in increasing the surface of fragments during their breakup. A flux-based approach is used that makes it possible to supplement the basic principles and develop a minimal theory of fragmentation. Such a supplementary principle is that of decreasing fragment-volume flux with increasing energy expended in fragmentation. It is shown that the behavior of the decreasing flux is directly related to the form of a power-law fragment-size distribution. The minimal theory is used to find universal asymptotic fragment-size distributions and to develop a natural physical classification of fragmentation models. A more general, nonlinear theory of strong fragmentation is also developed. It is demonstrated that solutions to a nonlinear kinetic equation consistent with both basic principles approach a universal asymptotic size distribution. Agreement between the predicted asymptotic fragment-size distributions and experimental observations is discussed.

  14. Antimatter in the universe

    International Nuclear Information System (INIS)

    Papini, P.; Spillantini, P.

    1996-01-01

    In this paper, the present knowledge on the study of antimatter in the universe is summarized. From the theoretical point of view, both baryon symmetric and asymmetric cosmologies are possible in the framework of big-bang theories. With the three 'Sakharov's conditions', it is possible to imagine an evolution from the big bang toward a universe with 'all matter' inside or toward a symmetric universe with matter and antimatter separated in domains. Measurement of the γ ray cosmic background implies only a local asymmetry and does not rule out the possibility of a symmetry on a large scale. Observations of the antiproton spectrum and antinuclei in cosmic rays are useful tools for studying the possible existence of an antigalaxy. The number and quality of the present data are poor, and no data are available at high energy, where the presence of an antigalaxy must be revealable owing to a large amount of antiprotons and antinuclei. In this paper, the future experimental projects to measure the antiproton flux at high energies and to search for antinuclei in cosmic rays are briefly presented

  15. How much we know about university internationalization and university autonomy

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Gullieva, Valeria

    2013-01-01

    in their mission statements and strategic plans. Conventional wisdom suggests that universities should adapt their strategies, resources, and structures and organizations to international environments. However, recent examples of university internationalization failures and withdrawals from international markets...

  16. University Pedagogy for Assistant Professors at Aalborg University (Part 1)

    DEFF Research Database (Denmark)

    Kolmos, Anette; Krogh, Lone

    2003-01-01

    The article describes a course for assistant professors within the University Teacher Education at Aalborg University. The course focus is to develop knowledge, skills and methods from within the didactic, pedagogical, and learning theory-based fields....

  17. Georgetown University and Hampton University Prostate Cancer Undergraduate Fellowship Program

    Science.gov (United States)

    2018-01-01

    goals. The first goal was to integrate upper level undergraduate students from Hampton University into the Georgetown Lombardi Comprehensive Cancer...upper level undergraduate Biology and Biochemistry Majors from Hampton University to work throughout the summer participating in prostate cancer...Dominican Republic summer 2017 Marissa Willis HU-GU Fellow Summer 2016 (Notario lab) Biology Major Hampton University, class of 2018, Math and

  18. University IPRs and knowledge transfer : is university ownership more efficient?

    NARCIS (Netherlands)

    Crespi, G.A.; Geuna, A.; Nomaler, Z.O.; Verspagen, B.

    2010-01-01

    This paper addresses an issue that has been largely ignored so far in the empirical literature on the role of patents in university-industry knowledge transfer: does it matter who owns the patents on university research? We observe that especially in Europe, many patents in which university

  19. University Pedagogy for Assistant Professors at Aalborg University (Part 2)

    DEFF Research Database (Denmark)

    Kolmos, Anette; Krogh, Lone

    2003-01-01

    In issue 1-2003, Anette Kolmos and Lone Krogh reported on the two-semester study course " University Pedagogy for Assistant Professors at Aalborg University (DK)". Now, in part 2, they are adressing guidelines for supervison and advising of assistant professors in the university teacher education...

  20. Private Universities in Zimbabwe: The Case of Africa University ...

    African Journals Online (AJOL)

    Whilst many of these challenges are shared with other private universities in Zimbabwe, a few are peculiar to Africa University. This paper discusses Africa University's experience with regard to establishment, nature, institutional marketing and student recruitment, programmes, governance, finding and other external factors ...

  1. The Necessary University

    Directory of Open Access Journals (Sweden)

    Jorge Luis Ibarra Mendívil

    2003-05-01

    Full Text Available Because of the complex scenarios brought about by globalization, the necessary university will require flexible models oriented toward problem solving and collaborative work, which will also allow students to enter and leave the institution at different times during their training. Among its main features, there will be collegial work, in the sense of collective teaching experimentation; active follow up of students’ progress; trust in the students’ potential; a close relationship of headmasters, teachers and students; and rules that provide certainty to institutional life.

  2. The relational universe

    International Nuclear Information System (INIS)

    Magnon, A.

    1998-01-01

    A relational approach to be observable universe is proposed, which precludes the concept of absolute background. Space-time events emerge as dynamical entities which owe their existence to a memorization process, itself inter wind with the availability of cosmological horizons (screening from totality) sourcing long-range correlations. The resulting (and relational) mode of description sheds light on various paradoxes (EPR, Foucault pendolum, light beam effect, etc.), on the problem of instantaneous and global influences (quark deconfinement) as related to the interconnectedness of our cosmos. This scenario leads to comment on living systems vs. robots, and on non-recursive and global aspects of the mathematical intuition

  3. The Artful Universe Expanded

    International Nuclear Information System (INIS)

    Bassett, B A

    2005-01-01

    The cosmos is an awfully big place and there is no better guide to its vast expanse and fascinating nooks and crannies than John Barrow. A professor of mathematical sciences at Cambridge University, Barrow embodies that rare combination of highly polished writer and expert scientist. His deft touch brings together the disparate threads of human knowledge and weaves them into a tapestry as rich and interesting for the expert as it is for the layperson. The Artful Universe Expanded is an updated edition of this popular book first published in 1995. It explores the deeply profound manner in which natural law and the nature of the cosmos have moulded and shaped us, our cultures and the very form of our arts and music-a new type of 'cosmic' anthropology. The main themes Barrow chooses for revealing this new anthropology are the subjects of evolution, the size of things, the heavens and the nature of music. The book is a large, eclectic repository of knowledge often unavailable to the layperson, hidden in esoteric libraries around the world. It rivals The Da Vinci Code for entertainment value and insights, but this time it is Nature's code that is revealed. It is rare indeed to find common threads drawn through topics as diverse as The Beetles, Bach and Beethoven or between Jackson Pollock, the Aztecs, Kant, Picasso, Byzantine mosaics, uranium-235 and the helix nebula. Barrow unerringly binds them together, presenting them in a stimulating, conversational style that belies the amount of time that must have gone into researching this book. Dip into it at random, or read it from cover to cover, but do read it. The Artful Universe Expanded is an entertaining antidote to the oft-lamented pressures to know more and more about less and less and the apparently inexorable march of specialization. On reading this book one can, for a short time at least, hold in one's mind a vision that unifies science, art and culture and glimpse a universal tapestry of great beauty. (book review)

  4. Status Report Jilin University

    Energy Technology Data Exchange (ETDEWEB)

    Dong, Yang; Huo Junde, E-mail: huojd@jlu.edu.cn

    2013-08-15

    Status of mass chain evaluation: Jilin University (JLU) group is responsible for nuclear structure and decay data evaluation of mass chains: A=52, 53, 54, 55, 56, and 63. (1) Status of publication in Nuclear Data Sheets (NDS): 52 - NDS, 106, 773 (2007); 53 - NDS, 110, 2689 (2009); 54 - NDS, 107, 1393 (2006); 55 - NDS, 109, 787 (2008); 56 - NDS, 112, 1513 (2011); 63 - NDS, 92, 147 (2001); ENSDF (2009) (2) Evaluation since last meeting (2011). A=54 in review (since 26-Dec-2012) A=52 evaluating A=63 evaluating. Other activities are briefly presented.

  5. Physics of the universe

    CERN Document Server

    Sachs, Mendel

    2010-01-01

    This book presents a new approach to the subject of cosmology. It fully exploits Einstein's theory of general relativity. It is found that the most general formal expression of the theory replaces the (10-component) tensor formalism with a (16-component) quaternion formalism. This leads to a unified field theory, where one field incorporates gravitation and electromagnetism. The theory predicts an oscillating universe cosmology with a spiral configuration. Dark matter is explained in terms of a sea of particle-antiparticle pairs, each in a particular (derived) ground state. This leads to an ex

  6. Attractors, universality, and inflation

    Science.gov (United States)

    Downes, Sean; Dutta, Bhaskar; Sinha, Kuver

    2012-11-01

    Studies of the initial conditions for inflation have conflicting predictions from exponential suppression to inevitability. At the level of phase space, this conflict arises from the competing intuitions of CPT invariance and thermodynamics. After reviewing this conflict, we enlarge the ensemble beyond phase space to include scalar potential data. We show how this leads to an important contribution from inflection point inflation, enhancing the likelihood of inflation to a power law, 1/Ne3. In the process, we emphasize the attractor dynamics of the gravity-scalar system and the existence of universality classes from inflection point inflation. Finally, we comment on the predictivity of inflation in light of these results.

  7. Cyclotron to Oslo University

    International Nuclear Information System (INIS)

    Sandstad, J.

    1978-01-01

    The new cyclotron was delivered to Oslo University on September 21st 1978, and was mannfactured by A/B Scandtronix of Uppsala, Sweden. The contract price was 6,8 million Norwegian kroner and installation will cost a further 4 million. The main specifications are given. The energy will be 36 MeV for protons and alpha particles, 18 MeV deuterons and 48 MeV for helium 3. The principle of a cyclotron is briefly described. While the primary purpose of the machine is nuclear research it is also planned to produce short-lived radioisotopes, primarily iodine 123. (JIW)

  8. The Artful Universe Expanded

    Energy Technology Data Exchange (ETDEWEB)

    Bassett, B A [Institute of Cosmology and Gravitation, University of Portsmouth (United Kingdom)

    2005-07-29

    The cosmos is an awfully big place and there is no better guide to its vast expanse and fascinating nooks and crannies than John Barrow. A professor of mathematical sciences at Cambridge University, Barrow embodies that rare combination of highly polished writer and expert scientist. His deft touch brings together the disparate threads of human knowledge and weaves them into a tapestry as rich and interesting for the expert as it is for the layperson. The Artful Universe Expanded is an updated edition of this popular book first published in 1995. It explores the deeply profound manner in which natural law and the nature of the cosmos have moulded and shaped us, our cultures and the very form of our arts and music-a new type of 'cosmic' anthropology. The main themes Barrow chooses for revealing this new anthropology are the subjects of evolution, the size of things, the heavens and the nature of music. The book is a large, eclectic repository of knowledge often unavailable to the layperson, hidden in esoteric libraries around the world. It rivals The Da Vinci Code for entertainment value and insights, but this time it is Nature's code that is revealed. It is rare indeed to find common threads drawn through topics as diverse as The Beetles, Bach and Beethoven or between Jackson Pollock, the Aztecs, Kant, Picasso, Byzantine mosaics, uranium-235 and the helix nebula. Barrow unerringly binds them together, presenting them in a stimulating, conversational style that belies the amount of time that must have gone into researching this book. Dip into it at random, or read it from cover to cover, but do read it. The Artful Universe Expanded is an entertaining antidote to the oft-lamented pressures to know more and more about less and less and the apparently inexorable march of specialization. On reading this book one can, for a short time at least, hold in one's mind a vision that unifies science, art and culture and glimpse a universal tapestry of great

  9. Messengers of the universe

    International Nuclear Information System (INIS)

    Becker, J.K.; Spurio, M.

    2011-01-01

    The observation of the solar neutrinos and of a neutrino burst from the supernova explosion 1987A opened a new observation field which in the next years could be complemented with the detection of astrophysical highenergy neutrinos. Neutrino astronomy is a young discipline derived from the fundamental necessity of extending conventional astronomy beyond the usual electro-magnetic messengers. This is a summary of recent results on those new 'messengers of the universe', based on the presentations in Branch IV of the Neutrino Oscillation Workshop 2010 (NOW2010).

  10. Understanding Our Only Universe

    Directory of Open Access Journals (Sweden)

    Valerio Marra

    2017-09-01

    Full Text Available In an imaginary dialogue between a professor and a layman about the future of cosmology, the said professor relates the paradoxical story of scientist Zee Prime, a bold thinker of a future civilization, stuck in a lonely galaxy, forever unaware of the larger universe. Zee Prime comes to acknowledge his position and shows how important it is to question standard models and status quo, as only the most imaginative ideas give us the chance to understand what he calls “our only universe” — the special place and time in which we live.

  11. Conformally connected universes

    International Nuclear Information System (INIS)

    Cantor, M.; Piran, T.

    1983-01-01

    A well-known difficulty associated with the conformal method for the solution of the general relativistic Hamiltonian constraint is the appearance of an aphysical ''bag of gold'' singularity at the nodal surface of the conformal factor. This happens whenever the background Ricci scalar is too large. Using a simple model, it is demonstrated that some of these singular solutions do have a physical meaning, and that these can be considered as initial data for Universe containing black holes, which are connected, in a conformally nonsingular way with each other. The relation between the ADM mass and the horizon area in this solution supports the cosmic censorship conjecture. (author)

  12. On universal procrastination

    Science.gov (United States)

    Eliazar, Iddo

    2017-09-01

    This paper presents a general stochastic model for procrastination with respect to a deadline. The model establishes a universal procrastination pattern that follows an inverse power-law: if the time remaining to the deadline is r then the response is 1/rε , where ɛ is a positive exponent. The model further establishes that the exponent value ε =1 , which yields the harmonic response 1/r , stands out as special and distinguishable. The theoretical results of the model are shown to be in perfect accord with recent empirical findings.

  13. QANU - Quality Assurance Netherlands Universities

    DEFF Research Database (Denmark)

    Jensen, Henrik Toft; Maria E., Weber; Vyt, André

    The Quality Assurance Netherlands Universities (QANU) underwent an ENQA-coordinated external review in 2016. The review was chaired by Henrik Toft Jensen, Research fellow at Roskilde University (RUC), Denmark....

  14. Qualitative analysis of homogeneous universes

    International Nuclear Information System (INIS)

    Novello, M.; Araujo, R.A.

    1980-01-01

    The qualitative behaviour of cosmological models is investigated in two cases: Homogeneous and isotropic Universes containing viscous fluids in a stokesian non-linear regime; Rotating expanding universes in a state which matter is off thermal equilibrium. (Author) [pt

  15. For information: Geneva University

    CERN Multimedia

    2005-01-01

    SECTION DE PHYSIQUEDépartement de physique de la matière condensée Quai Ernest-Ansermet 24CH-1211 Genève 4Tél. 022 379 65 11 - Fax 022 379 68 69 Mercredi 14 décembre Colloque exceptionnel 17h00 - Auditoire: Grand Auditoire A Possible Solution to the High Temperature Superconducivity Phenomena Professor Chandra Varma / Department of physics, University of California Riverside The intense effort on the solution of the high Tc problem (over 105 papers in 18 years) has led to remarkable new ideas which will affect future developments not just in condensed matter physics but all of physics. There may now exist a consistent microscopic theory which explains the universal features of the phase diagram of the Cuprates and whose principal predictions have been experimentally verified. This theory draws on an assimilation of the wide ranging experiments on the Cuprates to formulate a phenomenology. The phenomenology is used to formulate a microscopic theory which in turn draws on aspects ranging from solid ...

  16. Universal Image Steganalytic Method

    Directory of Open Access Journals (Sweden)

    V. Banoci

    2014-12-01

    Full Text Available In the paper we introduce a new universal steganalytic method in JPEG file format that is detecting well-known and also newly developed steganographic methods. The steganalytic model is trained by MHF-DZ steganographic algorithm previously designed by the same authors. The calibration technique with the Feature Based Steganalysis (FBS was employed in order to identify statistical changes caused by embedding a secret data into original image. The steganalyzer concept utilizes Support Vector Machine (SVM classification for training a model that is later used by the same steganalyzer in order to identify between a clean (cover and steganographic image. The aim of the paper was to analyze the variety in accuracy of detection results (ACR while detecting testing steganographic algorithms as F5, Outguess, Model Based Steganography without deblocking, JP Hide and Seek which represent the generally used steganographic tools. The comparison of four feature vectors with different lengths FBS (22, FBS (66 FBS(274 and FBS(285 shows promising results of proposed universal steganalytic method comparing to binary methods.

  17. Carbon in the Universe

    Science.gov (United States)

    Allamandola, Louis J.

    2013-01-01

    Over the past few decades, NASA missions have revealed that we live in a Universe that is not a hydrogen-dominated, physicist's paradise, but in a molecular Universe with complex molecules directly interwoven into its fabric. These missions have shown that molecules are an abundant and important component of astronomical objects at all stages of their evolution and that they play a key role in many processes that dominate the structure and evolution of galaxies. Closer to home in our galaxy, the Milky Way, they have revealed a unique and complex organic inventory of regions of star and planet formation that may well represent some of the prebiotic roots to life. Astrobiology emerges from the great interest in understanding astrochemical evolution from simple to complex molecules, especially those with biogenic potential and the roles they may play as primordial seeds in the origin of life on habitable worlds. The first part of this talk will highlight how infrared spectroscopic studies of interstellar space, combined with dedicated laboratory simulations, have revealed the widespread presence of complex organics across deep space. The remainder of the presentation will focus on the evolution of these materials and astrobiology.

  18. Universality of fragment shapes.

    Science.gov (United States)

    Domokos, Gábor; Kun, Ferenc; Sipos, András Árpád; Szabó, Tímea

    2015-03-16

    The shape of fragments generated by the breakup of solids is central to a wide variety of problems ranging from the geomorphic evolution of boulders to the accumulation of space debris orbiting Earth. Although the statistics of the mass of fragments has been found to show a universal scaling behavior, the comprehensive characterization of fragment shapes still remained a fundamental challenge. We performed a thorough experimental study of the problem fragmenting various types of materials by slowly proceeding weathering and by rapid breakup due to explosion and hammering. We demonstrate that the shape of fragments obeys an astonishing universality having the same generic evolution with the fragment size irrespective of materials details and loading conditions. There exists a cutoff size below which fragments have an isotropic shape, however, as the size increases an exponential convergence is obtained to a unique elongated form. We show that a discrete stochastic model of fragmentation reproduces both the size and shape of fragments tuning only a single parameter which strengthens the general validity of the scaling laws. The dependence of the probability of the crack plan orientation on the linear extension of fragments proved to be essential for the shape selection mechanism.

  19. Universal Payload Information Management

    Science.gov (United States)

    Elmore, Ralph B.

    2003-01-01

    As the overall manager and integrator of International Space Station (ISS) science payloads, the Payload Operations Integration Center (POIC) at Marshall Space Flight Center has a critical need to provide an information management system for exchange and control of ISS payload files as well as to coordinate ISS payload related operational changes. The POIC's information management system has a fundamental requirement to provide secure operational access not only to users physically located at the POIC, but also to remote experimenters and International Partners physically located in different parts of the world. The Payload Information Management System (PIMS) is a ground-based electronic document configuration management and collaborative workflow system that was built to service the POIC's information management needs. This paper discusses the application components that comprise the PIMS system, the challenges that influenced its design and architecture, and the selected technologies it employs. This paper will also touch on the advantages of the architecture, details of the user interface, and lessons learned along the way to a successful deployment. With PIMS, a sophisticated software solution has been built that is not only universally accessible for POIC customer s information management needs, but also universally adaptable in implementation and application as a generalized information management system.

  20. History of the Universe Poster

    Science.gov (United States)

    History of the Universe Poster You are free to use these images if you give credit to: Particle Data Group at Lawrence Berkeley National Lab. New Version (2014) History of the Universe Poster Download: JPEG version PDF version Old Version (2013) History of the Universe Poster Download: JPEG version

  1. How to Run a University

    Science.gov (United States)

    Evans, G. R.

    2006-01-01

    The Lambert Review of Business-University Collaboration proposed a business model for universities in 2003. Pressure to change university governance to make it match the business model remains strong, and it is being most actively applied to Oxford and Cambridge. The Oxford and Cambridge governance debates (which began in the 1990s) open up the…

  2. Collapse of simple harmonic universe

    International Nuclear Information System (INIS)

    Mithani, Audrey T.; Vilenkin, Alexander

    2012-01-01

    In a recent paper Graham et al constructed oscillating and static universe models which are stable with respect to all classical perturbations. Here we show that such universes are quantum-mechanically unstable and can collapse by quantum tunneling to zero radius. We also present instantons describing nucleation of oscillating and static universes from nothing

  3. The RAE and University Efficiency.

    Science.gov (United States)

    Mace, John

    2000-01-01

    Evaluates effects of the new British funding formula for universities, based on the research assessment exercise (RAE). Compares effects of the RAE on two contrasting universities and finds the RAE has dramatically affected university organization, teaching, and research. RAE may have increased efficiency in teaching and research but encourages…

  4. Universal service policy in Vietnam

    DEFF Research Database (Denmark)

    Do Manh, Thai; Falch, Morten; Von Salakpi, Simeon

    2016-01-01

    Universal service provision is a key to bridge the digital divide. This paper provides an empirical examination of the Vietnamese universal policy introduced in 2015 for implementation up to 2020. Using the framework of King et al. (1994) the paper analyses the universal services policy in Vietna...

  5. From Traditional to Modern Universities

    DEFF Research Database (Denmark)

    Nielsen, Anja Birch; Sort, Jesper Chrautwald; Nielsen, Christian

    concludes that the performance management used today in universities in form of publications is overlooking the industries’ need of growth from the university knowledge. Hence motivating the scientists to engage in collaborations only from the university point of view and only to a limited extent concerning...... about the companies....

  6. Imagine the Universe!

    Science.gov (United States)

    White, N.

    2003-01-01

    Welcome to the 2004 edition of the education CD from the Laboratory for High Energy Astrophysics at NASA Goddard Space Flight Center. We hope that you will find it to be an exciting and fun learning experience. We have tried very hard to make this CD as user-friendly as possible and along the way we have discovered some things that every user may need to know. Please read the README file found on the CD if you have any questions or problems using the disk. Then, after that, if you still have problems, email us at itu@athena.gsfc.nasa.gov. We will be happy to help you 'get going'! Below are links to all of the sites included on the CD. You will also find the addresses for the on-line version of each of these sites. If you have a good Internet connection available, we recommend that you view the sites on-line. There you will find the latest updated information, interactive activities, and active links to other sites. Included on the disk are: Imagine The Universe! This site is dedicated to a discussion about our Universe... what we know about it, how it is evolving, and the kinds of objects and phenomena it contains. Emphasizing the X-ray and gamma-ray parts of the electromagnetic spectrum, it also discusses how scientists know what they know, what mysteries remain, and how the answers to remaining mysteries may one day be found. Lots of movies, quizzes, and a special section for educators. Geared for ages 14 and up. This site can be viewed on-line at http://imagine.gsfc.nasa.gov/. StarChild: A learning center for young astronomers The 1998 Webby Award Winner for Best Education Website, StarChild is aimed at ages 4-14. It contains easy-to-understand information about our Solar System, the Universe, and space exploration. There are also activities, songs, movies, and puzzles! This site can be viewed on-line at http://starchild.gsfc.nasa.gov/. Astronomy Picture of the Day APOD offers a new astronomical image and caption each calendar day. We have captured the year 2003

  7. University autonomy as sensemaking

    DEFF Research Database (Denmark)

    Lind, Jonas Krog

    The formal autonomy of universities in Europe has generally increased over recent decades. However, new forms of accountability measures and more indirect state steering have accompanied this development, making it difficult to assess the actual autonomy. The article addresses this problem...... by applying the sensemaking approach to the study of organizational autonomy. Enacted autonomy is suggested as a new conceptualization that challenges the basic assumption in studies on formal autonomy that autonomy is only about external constraints on action. It does so by insisting on the active subjects...... in the enactment of the environment, thereby questioning the validity of a clear distinction between what is internal and what is external to an organization. By acknowledging the subjective dimension of autonomy, a set of stylized identities is developed as a tool for understanding the enactment of autonomy...

  8. Universal leakage elimination

    International Nuclear Information System (INIS)

    Byrd, Mark S.; Lidar, Daniel A.; Wu, L.-A.; Zanardi, Paolo

    2005-01-01

    'Leakage' errors are particularly serious errors which couple states within a code subspace to states outside of that subspace, thus destroying the error protection benefit afforded by an encoded state. We generalize an earlier method for producing leakage elimination decoupling operations and examine the effects of the leakage eliminating operations on decoherence-free or noiseless subsystems which encode one logical, or protected qubit into three or four qubits. We find that by eliminating a large class of leakage errors, under some circumstances, we can create the conditions for a decoherence-free evolution. In other cases we identify a combined decoherence-free and quantum error correcting code which could eliminate errors in solid-state qubits with anisotropic exchange interaction Hamiltonians and enable universal quantum computing with only these interactions

  9. The International Space University

    Science.gov (United States)

    Davidian, Kenneth J.

    1990-01-01

    The International Space University (ISU) was founded on the premise that any major space program in the future would require international cooperation as a necessary first step toward its successful completion. ISU is devoted to being a leading center for educating future authorities in the world space industry. ISU's background, goals, current form, and future plans are described. The results and benefits of the type of education and experience gained from ISU include technical reports describing the design projects undertaken by the students, an exposure to the many different disciplines which are a part of a large space project, an awareness of the existing activities from around the world in the space community, and an international professional network which spans all aspects of space activities and covers the globe.

  10. Teaching Function at University

    Directory of Open Access Journals (Sweden)

    Alma Elena Figueroa Rubalcava

    2008-08-01

    Full Text Available A peremptory change in education and the higher education at universities is occurriyng. Since 60´s to date theoretical issues on the role of education are continuously on modification more rapidly than the teaching and learning practices that need more time to be realized. In this paper is presented a broad scope of main national and international organizations that propose, promote and systematize those educational changes since a half century ago and specially, those that impact the formation tendency based on competences. On other side, and not pretending be exhaustive, in this paper is highlighted a list of educational competences that teachers need to develop if they pretend to realize their teaching functions with high quality standards, mainly those related with velocity involvement as curriculum constructor.

  11. Universal mesoscopic conductance fluctuations

    International Nuclear Information System (INIS)

    Evangelou, S.N.

    1992-01-01

    The theory of conductance fluctuations in disordered metallic systems with size large compared to the mean free path of the electron but small compared to localization length is considered. It is demonstrates that fluctuations have an universal character and are due to repulsion between levels and spectral rigidity. The basic fluctuation measures for the energy spectrum in the mesoscopic regime of disordered systems are consistent with the Gaussian random matrix ensemble predictions. Although our disordered electron random matrix ensemble does not belong to the Gaussian ensemble the two ensembles turn out to be essentially similar. The level repulsion and the spectral rigidity found in nuclear spectra should also be observed in the metallic regime of Anderson localization. 7 refs. (orig.)

  12. External conference: Geneva University

    CERN Multimedia

    2006-01-01

    ECOLE DE PHYSIQUE Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 - Tél : 022 379 62 73 - Fax: 022 379 69 92 Monday 12 June 2006 PARTICLE PHYSICS COLLOQUIUM at 17:00 - Stückelberg Auditorium Quantum computers - dream and realization Prof. R. Blatt / University of Innsbruck, Austria Computational operations always rely on real physical processes, which are data input, data representation in a memory, data manipulation using algorithms and finally, the data output. With conventional computers all the processes are classical processes and can be described accordingly. Theoretically, it is known for several years now that certain computations could be processed much more efficiently using quantum mechanical operations. This requires the implementation of quantum bits (qubits), quantum registers and quantum gates and the development of quantum algorithms. Several approaches for the implementation of quantum computers will be presented, with special emphasis o...

  13. FOR INFORMATION: Geneva University

    CERN Multimedia

    2005-01-01

    Ecole de physique Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 TéL: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 30 November PARTICLE PHYSICS SEMINAR at 17:00 - Stückelberg Auditorium CVD Diamond Radiation Sensors For Application In Very High Radiation Environments by Prof. Peter Weilhammer / University and INFN Perugia and CERN After an introduction into the basic properties and operating principles of CVD diamond radiation sensor material, measurements of charge carrier collection and leakage currents in single crystal and polycrystalline CVD diamonds will be presented. Results from measurements of the effective mobilities and carrier lifetime of electrons and holes, using the Transient Current Technique (TCT), will be shown. Radiation hardness of CVD polycrystalline diamonds will be discussed. A summary of radiation hardness measurements, carried out over several years, will be presented for polycrystalline material. Performance of diamond trackin...

  14. Radioecology. University textbook

    International Nuclear Information System (INIS)

    Toelgyessy, J.; Harangozo, M.

    2000-01-01

    This textbook of radioecology for university students consists of next chapters: (1) Radioecology as special part of ecology; (2) Radionuclides in the biosphere; (3) Radioactivity of atmosphere an factors influenced its value; (4) Radioactivity of waters and factors influenced its value; (5) Radioactivity of soil and its connection with mechanical structure and chemical composition of soil as well ass with used agricultural-technical and agricultural-chemical procedures; (6) Radioactivity of plants and factors influenced its value; (7) Radioactivity of animals and animal organs and factors influenced its value; (8) Ionisation radiation and human organism. Radioactivity of human tissues; (9) Behaviour of individual groups of radionuclide in the environment; (10) Determination of radionuclides in components of the environment; (11) Radioactive wastes; (12) Nullification of nuclear reactors; (13) Radionuclides in medicine; (14) Radionuclides in vegetal production and food processing; (15) Safety of work in nuclear scientific and technological disciplines; (16) Assessment and regulation of radiation risks for the environment

  15. Plasma and the universe

    International Nuclear Information System (INIS)

    Falthammar, C.G.

    1988-01-01

    Hannes Alfven has enjoyed a long and spectacular career in which he has time and again pioneered the path that other workers were able fruitfully to exploit. One thinks of the Alven waves, the concept of gyrocenter drift and the perturbation theory based on it, and the critical velocity phenomenon in the interaction of a plasma with a neutral gas. All of these discoveries have been of fundamental importance. By no means content to rest on his laurels, Alfven has, during the last decade, contributed to science in a major sense, especially in the field of cosmogeny. For example, he has used the latest data from the Voyager spacecraft to test his detailed predictions of the structure of the Saturnian rings. Alfven's current preoccupation is with the Plasma Universe and, as may be expected, some of his concepts are receiving observational support, while others are still controversial

  16. Life In The Universe!

    CERN Multimedia

    2001-01-01

    An alien invasion of CERN? Is there life elsewhere in the Universe? Are we alone? These questions have always fascinated humanity and for more than 30 years, physicists, biologists, chemists, cosmologists and astronomers have worked tirelessly to answer these questions. Yet just this past week at CERN students from all over Europe came to present their ideas on the subject and listen to the latest on extraterrestrial life from some of the world's most prestigious researchers. Students participating in the programme were encouraged to present their views on extraterrestrial life creatively and boy did they! The team from Portugal ran performances of Greek Theatre, the team from Hungary created a board game, while the team from Belgium recited poetry questioning the existence of extraterrestrials. But all was not light hearted, there were touching presentations of violin and piano by the French team and a very thought provoking theatre performance by the German team contrasting the search for extraterrestrial...

  17. Fred Hoyle's Universe

    Science.gov (United States)

    Gregory, Jane

    2005-08-01

    Fred Hoyle was a Yorkshire truant who became the voice of British astronomy. For fifty years, he spoke out for astronomy in the newspapers, on government committees, at scientific meetings, in popular books and on the radio. He devised a never-ending history of the universe, and worked out how the elements were made. He founded a prestigious institute for theoretical astronomy and built a giant telescope, and if it rained on his summer holiday, he sat in his caravan and wrote science fiction novels for his legions of fans around the world. Fred Hoyle also claimed that diseases fall from the sky, that the big bang never happened, and that the Astronomer Royal should be abolished. When the outspoken Fred Hoyle spoke out for astronomy, some astronomers really wished he had kept his mouth shut. This book tells the behind-the-scenes story of Hoyle's widely acclaimed and deeply controversial role in the ideas, organization and public face of astronomy in post-war Britain. It chronicles the triumphs, acrimony, jealousies, rewards and bitter feuds of a field in turmoil, and meets the astronomers, contemplating cosmic questions, keeping secrets, losing their tempers, winkling information out of distant stars and, over tea on the lawn, discussing the finer points of libel law. Fred Hoyle's Universe draws on previously confidential government documents, recently released personal correspondence and interviews with Hoyle's friends, colleagues and critics, as well as with Hoyle himself, to bring you the man, the science, and the scandal behind the genial and genteel facade of the most exciting period in the history of astronomy.

  18. Wikipedia ranking of world universities

    Science.gov (United States)

    Lages, José; Patt, Antoine; Shepelyansky, Dima L.

    2016-03-01

    We use the directed networks between articles of 24 Wikipedia language editions for producing the wikipedia ranking of world Universities (WRWU) using PageRank, 2DRank and CheiRank algorithms. This approach allows to incorporate various cultural views on world universities using the mathematical statistical analysis independent of cultural preferences. The Wikipedia ranking of top 100 universities provides about 60% overlap with the Shanghai university ranking demonstrating the reliable features of this approach. At the same time WRWU incorporates all knowledge accumulated at 24 Wikipedia editions giving stronger highlights for historically important universities leading to a different estimation of efficiency of world countries in university education. The historical development of university ranking is analyzed during ten centuries of their history.

  19. (Re)Discovering University Autonomy

    DEFF Research Database (Denmark)

    This book challenges traditional approach to university autonomy which is based on four pillars: organisational, financial, human resource, and academic. The main thesis is that a fuller understanding of university autonomy can only be obtained through a more holistic view of the complex inter......-relationships between stakeholders and policies which can reinforce and equally pull in opposite directions. The holistic view is expressed in a model of institutional university autonomy that brings together the traditional basic four pillars of autonomy, and five interfaces: government–university; university......–university staff; academic staff–students; university–business; and university–internationalisation. This model is explored through international case studies that give new insights and reinforce our understanding that the issues relating to institutional university autonomy are complex, interactive and genuinely...

  20. Sheet universes and the shapes of Friedmann universes

    International Nuclear Information System (INIS)

    Lynden-Bell, D.; Redmount, I.H.

    1989-01-01

    Unless Ω>1,the Big Bang did not start from a point. Consideration shows sheet universes in which matter is confined to a homogeneous universe. Sheet universes and the corresponding embeddings of FRW universes into Minkowski space are drawn. Their initial singularities are shown to be point-like for the 'closed' case, line-like for the 'flat' (Ω=1) case and surface-like for the 'open' case. In contrast to the cross-sections at constant comoving proper time, typical spacelike cross-sections of the 'flat' universes are closed and encounter their extensive singularities. All cross-sections of the 'closed' universe are closed and only very special cross-sections encounter the point singularities at the Big Bang or the Big Crunch. (author)

  1. Behavioral medicine in Teikyo University and Toho University

    OpenAIRE

    Takeuchi, Takeaki; Hashizume, Masahiro

    2016-01-01

    Behavioral medicine has increased in importance to become a promising field in medical education. The Teikyo University Graduate School of Public Health and Toho University School of Medicine were evaluated in terms of their educational emphasis on behavioral medicine. The Teikyo University Graduate School of Public Health has the following five core requirements, as in the global standards: behavioral medicine, biostatistics, epidemiology, occupational health, and health policy management. B...

  2. Postmodernity and the university

    Directory of Open Access Journals (Sweden)

    Peter Scott

    2012-09-01

    Full Text Available The utility of post-modernism as an interpretative framework for understanding the development of contemporary higher education systems is sharply contested. Critics argue that post-modernism is, at best, a set of ideas in aesthetics, literature and critical theory with limited relevance outside these domains and, at worst, a passing intellectual fashion that is now out-of-date. However, post-modernity —or, as some would prefer, late modernity or ‘fluid’ modernity — is perhaps a more useful idea. In 21stcentury society there are a number of trends, some structural such as the growth of a knowledge-based economy and development of new patterns of knowledge production; and some conceptual such as the reconfiguration of time and space and the recognition of ‘difference’ (and risk? as key factor in the constitution of social life (and individual identity, which have a direct impact on the university. This impact is felt in two ways — first, the university is a primary engine of these transformations. Secondly, the university is shaped by these transformations (both normatively and cognitively in terms of teaching and research and structurally in terms of its organisational characteristics, governance and managementLa utilidad del postmodernismo como marco interpretativo para comprender el desarrollo de los sistemas contemporáneos de educación superior ha sido severamente contestada. Los críticos argumentan que el postmodernismo es, como mucho, un conjunto de ideas en los ámbitos de la estética, literatura y teoría crítica con relevancia limitada fuera de esos campos y, a lo peor, una moda intelectual pasajera que actualmente está caducada. No obstante, la postmodernidad —o, como algunos preferirían, la modernidad tardía o modernidad «fluida»— es quizá una idea más útil. En la sociedad del siglo XXI hay un cúmulo de tendencias, algunas estructurales, como el crecimiento de la economía basada en el conocimiento y el

  3. Our Astounding Universe

    Science.gov (United States)

    Mishra, Monika

    2016-04-01

    The philosophy of my life is to keep encouraging children to think beyond they could achieve easily. I understand children are adaptive to change and take things with an open mind. They are ready to experiment with new things and dare to dream big. I am fortunate to being a teacher by profession and thus I always attempt experimenting, observing, and participating with other children and adults. Children learn through play. From birth, children are active participants in building their own understanding. Teachers prepare the environment to help each child build on what they already know. It is such a great pleasure to observe every young kid that becomes excited and curious to know when we show them the Universe pictures and tell them about the strange objects in our Universe. So my aim is to keep them ignited by doing different activities throughout the year related to Space. I am always a firm believer of: Creativity is the key to success in the future, and primary education is where teachers can bring creativity in children at that level. One of my main ways of teaching is to conduct various presentations on The Solar System and beyond and debates on Space explorations. A Planet making project is one of the all-time favorite project for my students where they dare to dream to fly in the universe, and with their imagination, kids make different celestial objects and present them. To inculcate scientific attitude I arrange film screening, simulation exercises and quizzes on various topics of astronomy. Every year we celebrate World Space Week 4th to 10th of Oct. The motivation among all came through different hands-on activities like-painting, slogan competition, topics related to space, poetry and essay writing on various topics related to astronomy, assembly presentations in school. I am indeed overwhelmed when I started the very special Space and Astronomy club where young toddlers are involved in different activities like a star gazing program, conducting

  4. The last universal physicist

    Energy Technology Data Exchange (ETDEWEB)

    Coccia, Eugenio [Gran Sasso National Laboratory, University of Rome ' Tor Vergata' (Italy)]. E-mail coccia@lngs.infn.it

    2005-04-01

    Born in Rome in 1901, Fermi was the last universal physicist - the most extraordinary of his century. He was at home in the workshop, the laboratory and among theoretical physicists. For the theorists he was a great theorist, and for the experimentalists he was a great experimentalist. What made Fermi so special as a physicist was his universality and versatility; what made him so special as a person was his modesty, realism and frugal lifestyle. This book, which describes Fermi's contributions to physics and the US period of his life, originated from a symposium that was held in Chicago in 2001 to commemorate the centenary of his birth. But it is not merely a volume of reminiscences. It combines essays, specially commissioned articles, as well as private material from Fermi's research notebooks, correspondence and speeches. Together the material highlights the breadth of his impact on physics. A classic biographical introduction by Emilio Segre is followed by an article in which Frank Wilczek, who shared the Nobel Prize for Physics last year, puts into perspective Fermi's huge contributions to physics. The list of his achievements is impressive. They include the introduction of Fermi statistics for half-integer-spin particles (1925) - now called fermions - that led to the concept of the 'Fermi surface' in condensed-matter and nuclear physics; the vector-coupling theory for beta-decay (1933), which formulated the proper structure of the weak interaction where the 'Fermi constant' measures the strength of the coupling; and the introduction, with his Rome group, of neutron-induced radioactivity and the study of slow-neutron interactions (1934). As a researcher and a teacher, Fermi inspired two generations and two continents - a man whose charismatic nature attracted many talented scientists and students to Chicago. What emerges from this book is the gratitude of so many extraordinary physicists to their master, who instilled in them

  5. Between universalism and regionalism: universal systematics from imperial Japan.

    Science.gov (United States)

    Lee, Jung

    2015-12-01

    Historiographic discussions of the universality and regionality of science have to date focused on European cases for making regional science universal. This paper presents a new perspective by moving beyond European origins and illuminating a non-European scientist's engagement with the universality and regionality of science. It will examine the case of the Japanese botanist Nakai Takenoshin (1882-1952), an internationally recognized authority on Korean flora based at Tokyo Imperial University. Serving on the International Committee on Botanical Nomenclature in 1926, Nakai endorsed and acted upon European claims of universal science, whilst simultaneously unsettling them with his regionally shaped systematics. Eventually he came to promote his own systematics, built regionally on Korean flora, as the new universal. By analysing his shifting claims in relation to those of other European and non-European botanists, this paper makes two arguments. First, universalism and regionalism were not contradictory foundations of scientific practice but useful tools used by this non-European botanist in maintaining his scientific authority as a representative Japanese systematist. Second, his claims to universality and regionalism were both imperially charged. An imperially monopolized study of Korean plants left a regional imprint on Nakai's systematics. In order to maintain his scientific authority beyond its region of origin he had to assert either the expanding regionalism of 'East Asia' or universalism.

  6. Water in the Universe

    CERN Document Server

    Hanslmeier, Arnold

    2011-01-01

    Due to its specific chemical and physical properties, water is essential for life on Earth. And it is assumed that this would be the case for extraterrestrial life as well. Therefore it is important to investigate where water can be found in the Universe. Although there are places that are completely dry, places where the last rainfall happened probably several 100 million years ago, surprisingly this substance is quite omnipresent. In the outer solar system the large satellites of Jupiter and Saturn are covered by a thick layer of ice that could be hiding a liquid ocean below. This of course brings up the question of whether the recently detected extrasolar planets could have some water on their surfaces and how we can detect this. Water molecules are also found in interstellar gas and dust clouds. This book begins with an introductory chapter reviewing the physical and chemical properties of water. Then it illuminates the apparent connection between water and life. This is followed by chapters dealing with ...

  7. A World Nuclear University

    International Nuclear Information System (INIS)

    Yanev, Y.

    2004-01-01

    The paper discusses the mission and tasks of the World Nuclear University (WNU) established to build worldwide knowledge and support the effective use of nuclear techniques for solving the global human and environmental problems of 21 century and thereby support the global sustainable development. In this respect the WNU would build Human resources, Technical knowledge and Public Support. A Network of educational and research institutions with strong programmes in nuclear science and engineering will be created. The WNU Head quarters and Regional Centers will: 1) Facilitate agreement on curriculum and WNU certification curriculum 2) Develop and administer scholarships; 3) Foster educational exchanges within WNU family institutions; 4) Build core faculty for summer 1/2 year Masters degrees; 5) Co-ordinate research, grants and knowledge management research; 6) Operate think tank and public information service; 7) Emphasise key areas such as safeguards systems and the nuclear-renewable-hydrogen economy; 8) Oversee world-wide human resources pool; 9) Orchestrate alumni support for nuclear technology. The possible participants and possible location of the Regional Centres are given

  8. COMPLEXITY AND UNIVERSITY

    Directory of Open Access Journals (Sweden)

    Edna Lemes Martins Pereira

    2013-12-01

    Full Text Available Economic globalization affects different countries on the globe, has positive effects mainly related to access to communication, which promotes the exchange of ideas, information, products and quality of life. However, extends numerous negative aspects such as marginalization, economic dependencies, political, cultural, scientific, educational accentuate social inequalities and cultural conflicts and territorial. In this article it is a dialogue with authors (Cunha 2009; BARNETT 2005; MORIN 1999, 2006, among others, who understand these changes in society from the contemporary world as conceived as the "Complexity era" or "supercomplexity". To understand and cope with this reality, they propose a paradigm that is able to overcome the fragmentation and reductionism of knowledge and to relate the multiple approaches and visions to meet the complexity of reality. Although this paper presents proposals to the aforementioned authors point to education and the university found in this tangle of interconnected global transformations, given the need to be subject to act in a complex reality that requires critical and self-critical professionals, able to think about their own ability to think, understand and act within this complex context.

  9. Hydrogen fuel - Universal energy

    Science.gov (United States)

    Prince, A. G.; Burg, J. A.

    The technology for the production, storage, transmission, and consumption of hydrogen as a fuel is surveyed, with the physical and chemical properties of hydrogen examined as they affect its use as a fuel. Sources of hydrogen production are described including synthesis from coal or natural gas, biomass conversion, thermochemical decomposition of water, and electrolysis of water, of these only electrolysis is considered economicially and technologically feasible in the near future. Methods of production of the large quantities of electricity required for the electrolysis of sea water are explored: fossil fuels, hydroelectric plants, nuclear fission, solar energy, wind power, geothermal energy, tidal power, wave motion, electrochemical concentration cells, and finally ocean thermal energy conversion (OTEC). The wind power and OTEC are considered in detail as the most feasible approaches. Techniques for transmission (by railcar or pipeline), storage (as liquid in underwater or underground tanks, as granular metal hydride, or as cryogenic liquid), and consumption (in fuel cells in conventional power plants, for home usage, for industrial furnaces, and for cars and aircraft) are analyzed. The safety problems of hydrogen as a universal fuel are discussed, noting that they are no greater than those for conventional fuels.

  10. The Politics of Universalism

    DEFF Research Database (Denmark)

    Simonsen, Karen-Margrethe

    2013-01-01

    This article investigates the political function of human rights in the 16th Century in Spain just after the conquest of America. It claims that the study of this period of early globalization is relevant for the understanding of the function of human rights discourses to day, at the ‘end...... discourses is split down the middle: it serves both as a critique of power and as an extension of power, and the disclosure of this split helps us understand the inner politics of human rights. The article discusses the trial in Valladolid in 1550 when the rights of the barbarian Indians of America were put...... on trial. It focuses mainly on the arguments made by Bartolomé de las Casas and on the reasons why the King allowed las Casas’ fierce critique of the conquest to be published in a period of otherwise severe censorship. The article is inspired by Etienne Balibar’s idea of ‘politics of universalism...

  11. university 2012 / krasnoyarsk

    Directory of Open Access Journals (Sweden)

    Elena Grigoryeva

    2012-09-01

    Full Text Available This issue consists of two parts. Both parts are connected with the upcoming review competition of graduation projects, which will be held in Krasnoyarsk in the second half of September.Konstantin Kiyanenko has sent us a map of Russia with architecture schools densely marked in the European part, in the west, and with a decreasing number of such schools further to the east. It is in direct ratio to the population. There are so few (and fewer and fewer of us… The more crucial it is that Krasnoyarsk, the biggest city of Eastern Siberia, was chosen to conduct the review competition.This issue contains a catalogue of the annual East-Siberian Zodchestvo Festival and the winning works from Krasnoyarsk presented in detail.The projects for the Ergaki by Alexei Myakota will show us the mountains, which are also visible in the city. Together with the guests, we will have a walk around the two central squares in Krasnoyarsk, along the embankment that connects those squares, and on the islands. Olga Smirnova, a graduate of Leningrad Engineering Construction Institute and a landscape architect, who has been working in Krasnoyarsk for a long time, expresses her love to the city in her frank and sincere talk with her colleagues.The city’s beautiful things are made by those who graduated from Russian, Soviet and again Russian Universities. And the mistakes are also made by us.

  12. External conference: Geneva University

    CERN Multimedia

    2007-01-01

    ECOLE DE PHYSIQUE Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 - Tél : 022 379 62 73 - Fax: 022 379 69 92 Monday 11 June 2007 COLLOQUE DE LA SECTION DE PHYSIQUE at 17:00 - Stückelberg Auditorium The CERN Axion Solar Telescope (CAST). Motivation, concept, results and potential implications Prof. Konstantin ZIOUTAS / University of Patras/Greece & CERN and CAST-spokesperson Axion is one of the leading dark matter particle candidates. The last few years axion searches are in the spotlight. The physics motivation will be presented. Particles like the axions should be produced also in Stars like our Sun. In magnetic fields axions can coherently oscillate to photons and vice versa (Primakoff effect). CAST searches for solar axions pointing a recycled LHC magnet towards the Sun, and, it provides new results since 2002. Its working principle might well be already at work in outer space, asking for an alternative, though exotic, point of view for certain myst...

  13. Two Belgian University Hospitals

    Directory of Open Access Journals (Sweden)

    M. Huylebrouck

    2012-01-01

    Full Text Available Background. Bevacizumab (BEV, a humanized immunoglobulin G1 monoclonal antibody that inhibits VEGF has demonstrated activity against recurrent high-grade gliomas (HGG in phase II clinical trials. Patients and Methods. Data were collected from patients with recurrent HGG who initiated treatment with BEV outside a clinical trial protocol at two Belgian university hospitals. Results. 19 patients (11 M/8 F were administered a total of 138 cycles of BEV (median 4, range 1–31. Tumor response assessment by MRI was available for 15 patients; 2 complete responses and 3 partial responses for an objective response rate of 26% for the intent to treat population were observed on gadolinium-enhanced T1-weighted images; significant regressions on T2/FLAIR were documented in 10 out of 15 patients (67%. A reduced uptake on PET was documented in 3 out of 4 evaluable patients. The six-month progression-free survival was 21% (95% CI 2.7–39.5. Two patients had an ongoing tumor response and remained free from progression after 12 months of BEV treatment. Conclusions. The activity and tolerability of BEV were comparable to results from previous prospective phase II trials. Reduced uptake on PET suggests a metabolic response in addition to an antiangiogenic effect in some cases with favorable clinical outcome.

  14. Universal mechatronics coordinator

    Science.gov (United States)

    Muir, Patrick F.

    1999-11-01

    Mechatronic systems incorporate multiple actuators and sensor which must be properly coordinated to achieve the desired system functionality. Many mechatronic systems are designed as one-of-a-kind custom projects without consideration for facilitating future system or alterations and extensions to the current syste. Thus, subsequent changes to the system are slow, different, and costly. It has become apparent that manufacturing processes, and thus the mechatronics which embody them, need to be agile in order to more quickly and easily respond to changing customer demands or market pressures. To achieve agility, both the hardware and software of the system need to be designed such that the creation of new system and the alteration and extension of current system is fast and easy. This paper describes the design of a Universal Mechatronics Coordinator (UMC) which facilitates agile setup and changeover of coordination software for mechatronic systems. The UMC is capable of sequencing continuous and discrete actions that are programmed as stimulus-response pairs, as state machines, or a combination of the two. It facilitates the modular, reusable programing of continuous actions such as servo control algorithms, data collection code, and safety checking routines; and discrete actions such as reporting achieved states, and turning on/off binary devices. The UMC has been applied to the control of a z- theta assembly robot for the Minifactory project and is applicable to a spectrum of widely differing mechatronic systems.

  15. External meeting: Geneva University

    CERN Multimedia

    2006-01-01

    Université de Genève Ecole de physique 24 quai Ernest Ansermet 1211 Genève 4 Tél : + 41 22 379 63 83 (secrétariat) Tél : + 41 22 379 62 56 (réception) Fax: + 41 22 379 69 22 Lundi 20 novembre 2006 COLLOQUIUM 17:00 - Auditoire Stückelberg Electrical correlation measurements in quantum nano-structures Dr. Stefan Oberholzer / Basel University Measuring the current-voltage characteristics of small conductors is widely used to characterize their electronic transport properties. In addition to such time-averaged measurements, correlation measurements between temporal fluctuations (noise) around the time-averaged mean current provide us with very important supplementary information about electrical transport. In this talk, I review our experimental work on shot noise, noise which originates from the granularity of charge and the diffraction of the electronic wave-function, and especially address the fundamental relation between electronic scattering experiments and the statistical properties of indist...

  16. Benchmarking in University Toolbox

    Directory of Open Access Journals (Sweden)

    Katarzyna Kuźmicz

    2015-06-01

    Full Text Available In the face of global competition and rising challenges that higher education institutions (HEIs meet, it is imperative to increase innovativeness and efficiency of their management. Benchmarking can be the appropriate tool to search for a point of reference necessary to assess institution’s competitive position and learn from the best in order to improve. The primary purpose of the paper is to present in-depth analysis of benchmarking application in HEIs worldwide. The study involves indicating premises of using benchmarking in HEIs. It also contains detailed examination of types, approaches and scope of benchmarking initiatives. The thorough insight of benchmarking applications enabled developing classification of benchmarking undertakings in HEIs. The paper includes review of the most recent benchmarking projects and relating them to the classification according to the elaborated criteria (geographical range, scope, type of data, subject, support and continuity. The presented examples were chosen in order to exemplify different approaches to benchmarking in higher education setting. The study was performed on the basis of the published reports from benchmarking projects, scientific literature and the experience of the author from the active participation in benchmarking projects. The paper concludes with recommendations for university managers undertaking benchmarking, derived on the basis of the conducted analysis.

  17. On universality in ergoregion mergers

    International Nuclear Information System (INIS)

    Elvang, Henriette; Figueras, Pau; Hubeny, Veronika E; Rangamani, Mukund; Horowitz, Gary T

    2009-01-01

    We study non-dynamical mergers of ergoregions in d + 1-dimensional vacuum gravity. At the merger point, where the ergosurfaces bounding each ergoregion just touch, solutions exhibit universal behavior when there is rotation only in one plane: the angle between the merging ergosurfaces depends only on the symmetries of the solution, not on any other details of the configuration. We show that universality follows from the fact that the relevant component of Einstein's equation reduces to Laplace's equation at the point of merger. Thus ergoregion mergers mimic mergers of Newtonian equipotentials and have similar universal behavior. For solutions with rotation in more than one plane, universality is lost. We demonstrate universality and non-universality in several explicit examples.

  18. Oscillating universe with quintom matter

    International Nuclear Information System (INIS)

    Xiong Huahui; Cai Yifu; Qiu Taotao; Piao Yunsong; Zhang Xinmin

    2008-01-01

    In this Letter, we study the possibility of building a model of the oscillating universe with quintom matter in the framework of 4-dimensional Friedmann-Robertson-Walker background. Taking the two-scalar-field quintom model as an example, we find in the model parameter space there are five different types of solutions which correspond to: (I) a cyclic universe with the minimal and maximal values of the scale factor remaining the same in every cycle, (II) an oscillating universe with its minimal and maximal values of the scale factor increasing cycle by cycle, (III) an oscillating universe with its scale factor always increasing, (IV) an oscillating universe with its minimal and maximal values of the scale factor decreasing cycle by cycle, and (V) an oscillating universe with its scale factor always decreasing

  19. Inter-Universal Quantum Entanglement

    Science.gov (United States)

    Robles-Pérez, S. J.; González-Díaz, P. F.

    2015-01-01

    The boundary conditions to be imposed on the quantum state of the whole multiverse could be such that the universes would be created in entangled pairs. Then, interuniversal entanglement would provide us with a vacuum energy for each single universe that might be fitted with observational data, making testable not only the multiverse proposal but also the boundary conditions of the multiverse. Furthermore, the second law of the entanglement thermodynamics would enhance the expansion of the single universes.

  20. Neutrinos in an expanding Universe

    International Nuclear Information System (INIS)

    Wigmans, Richard

    2015-01-01

    The Universe contains several billion neutrinos for each nucleon. In this paper, we follow the history of these relic neutrinos as the Universe expanded. At present, their typical velocity is a few hundred km/s and, therefore, their spectra are affected by gravitational forces. This may have led to a phenomenon that could explain two of todays great mysteries: The large-scale structure of the Universe and the increasing rate at which it expands. (paper)

  1. Taiwan Universities: Where to Go?

    Directory of Open Access Journals (Sweden)

    Yu-Ying Kuo

    2016-02-01

    Full Text Available The dramatic expansion of Taiwan universities/colleges from about 100 to 160 from the late 1980s has encountered problems due to social and global changes. What should Taiwan universities move toward and how? This research relies on secondary data to explore the issues Taiwan universities currently face—a low birth rate and global competition. The decreasing number of incoming students will result in a lower registration rate and less tuition revenue, which will make some universities struggle to survive. Hence, government policies, proposed by the Ministry of Education, have been implemented to assist Taiwan universities to adjust to external changes. The Innovative Transformation Policy, adopted in 2015, consists of strategies for university–industry cooperation, university mergers, university closures, and a re-shaping of the university paradigm. This policy has begun to be implemented and its initial outcome will be continually evaluated. In accordance with the Innovative Transformation Policy, this study encourages Taiwan universities to improve governance, set prominent unique characteristics of development, and enhance global competitiveness.

  2. Miniature JPL Universal Instrument Bus

    Data.gov (United States)

    National Aeronautics and Space Administration — Develop a Universal Digital Processor Bus architecture using state of the art commercial packaging technologies. This work will transition commercial advanced- yet...

  3. Mach's principle and rotating universes

    International Nuclear Information System (INIS)

    King, D.H.

    1990-01-01

    It is shown that the Bianchi 9 model universe satisfies the Mach principle. These closed rotating universes were previously thought to be counter-examples to the principle. The Mach principle is satisfied because the angular momentum of the rotating matter is compensated by the effective angular momentum of gravitational waves. A new formulation of the Mach principle is given that is based on the field theory interpretation of general relativity. Every closed universe with 3-sphere topology is shown to satisfy this formulation of the Mach principle. It is shown that the total angular momentum of the matter and gravitational waves in a closed 3-sphere topology universe is zero

  4. Peculiarities of the early Universe (Universes) birth and positron annihilation

    International Nuclear Information System (INIS)

    Svetlov-Prokop'ev, E.P.

    2003-01-01

    Works on the problem of quantum birth of the Universe are reviewed. Possible peculiarities of electron-positron annihilation at the early stages of the Universe (s) birth in connection with black holes are considered. Possible concept of Eternity is discussed. (author)

  5. Building Effective Community-University Partnerships: Are Universities Truly Ready?

    Science.gov (United States)

    Curwood, Susan Eckerle; Munger, Felix; Mitchell, Terry; Mackeigan, Mary; Farrar, Ashley

    2011-01-01

    Community service learning and community-based research necessitate the development of strong community-university partnerships. In this paper, students, faculty, and a community partner critically reflect upon the process of establishing a long-term community-university partnership through the integration of a community service learning component…

  6. [Universal electrogustometer EG-1].

    Science.gov (United States)

    Pleskacz, Witold A; Wałkanis, Andrzej; Rapiejko, Piotr; Jurkiewicz, Dariusz

    2009-01-01

    Electrogustometry has been used as a clinical tool for diagnosis and assessment of a variety of conditions. Since the lack of versatile electrogustometer for research and diagnosis, the new electrogustometer EG-1 was developed in 2006. It was done in cooperation between Warsaw University of Technology and Military Institute of Medicine in Warsaw. EG-1 allows quantitative estimation of taste perception threshold using both static and impulse electrogustometry with bipolar electrode. It is a fully autonomous, battery powered and portable instrument. Because of small size and weight, it can be easily placed in any environment. Microprocessor controlled measurement system and user-friendly interface (LCD display with simple keyboard) make EG-1 electrogustometer very handy and flexible in operation. Data obtained during measurements is stored in the internal device memory. After taste examinations measurement data can be transferred to a personal computer via inbuilt USB port for further analysis and storage. EG-1 can generate three predefined variously shaped current impulses: sinus-, saw- and rectangle-shaped. There is an optional possibility of creating own shapes of stimulus puls by the user. The electrical parameters of generated pulses are as follow: current amplitude 1-2000 microA regulated with 1 microA step, stimulus frequency 0(DC)-500 Hz regulated with 5 Hz step, controlable fulfillment factor and signal rise time (optional for automatic measurements). The operator can trigger the stimuli via a hand switch on the bipolar electrode (with gold-plated endings), via keyboard or via additional independent hand switch. Three years of experience collected during EG-1 exploitation allowed to design a new version of electrogustometer EG-2 with a touch panel and color graphical display.

  7. Universal tritium transmitter

    International Nuclear Information System (INIS)

    Cordaro, J. V.; Wood, M.

    2008-01-01

    sufficient time to thermally equilibrate. Amplifiers, transistors, resistors all need time to stabilize before the electrometer circuit will measure accurately in the 10 -15 and 10 -14 ampere range. Existing electrometers give the user no indication when the unit has stabilized and is acceptable for low level measurements. Savannah River National Laboratory (SRNL) funded through the NNSA Plant Directed Research and Development (PDRD) program, has developed a truly Universal Tritium Transmitter (UTT) capable of solving many known problems with existing commercial electrometers. This UTT pushes the state-of-the-art in electrometer design and incorporates solutions to deficiencies found in commercial electrometers. (authors)

  8. Ebooks at Bergen University Library?

    OpenAIRE

    Landøy, Ane; Mikki, Susanne; Skagen, Therese; Stangeland, Elin

    2004-01-01

    The ongoing quality reform in academia in Norway leads to changing user needs for Bergen University Library. This article discusses advantages and disadvantages of ebooks in an academic institution like the University of Bergen (UiB). Strategies for procurement, presentation and use are considered.

  9. University involvement in sustainability initiatives

    DEFF Research Database (Denmark)

    Lehmann, Martin; Christensen, Per; Thrane, Mikkel

    2007-01-01

    With an outset in the case of Aalborg University, the linkages (actual, potential and missing) between academic work in research & education and sustainability initiatives are explored. The focus is both on the university's core activities as a provider of research and education and on the univer......With an outset in the case of Aalborg University, the linkages (actual, potential and missing) between academic work in research & education and sustainability initiatives are explored. The focus is both on the university's core activities as a provider of research and education...... and on the university's activities as an organisation, i.e. its own operation and its accounting for this. Sustainability is defined as a continuous process requiring balance between (the emergence of) problems and our ability and capability to solve them. Some core questions that this paper seeks to answer are: "How...... is Sustainable Development understood at executive level at the university? How (if at all) is sustainable development integrated in the core activities of the university? How is the university attached to ‘real life outside the ivory tower', e.g. through the establishing of Public-Private-Academic Partnerships...

  10. Plausibility Arguments and Universal Gravitation

    Science.gov (United States)

    Cunha, Ricardo F. F.; Tort, A. C.

    2017-01-01

    Newton's law of universal gravitation underpins our understanding of the dynamics of the Solar System and of a good portion of the observable universe. Generally, in the classroom or in textbooks, the law is presented initially in a qualitative way and at some point during the exposition its mathematical formulation is written on the blackboard…

  11. The University and the Community.

    Science.gov (United States)

    Campbell, Duncan

    This paper presented views on the role of the university, and particularly the University of Alberta, in the community in the 1970s. Such indicators as population growth, income growth, rising level of education, rising levels of taxation, the rapidity of technological advance, shifts in social pattern, all pointed to a rapidly growing demand on…

  12. Managing University Research Microdata Collections

    Science.gov (United States)

    Woolfrey, Lynn; Fry, Jane

    2015-01-01

    This article examines the management of microdata collections in a university context. It is a cross-country analysis: Collection management at data services in Canada and South Africa are considered. The case studies are of two university sub-contexts: One collection is located in a library; the other at a Faculty-based Data Service. Stages in…

  13. Desktop Publishing in the University.

    Science.gov (United States)

    Burstyn, Joan N., Ed.

    Highlighting changes in the work of people within the university, this book presents nine essays that examine the effects of desktop publishing and electronic publishing on professors and students, librarians, and those who work at university presses and in publication departments. Essays in the book are: (1) "Introduction: The Promise of Desktop…

  14. Growing an Emerging Research University

    Science.gov (United States)

    Birx, Donald L.; Anderson-Fletcher, Elizabeth; Whitney, Elizabeth

    2013-01-01

    The emerging research college or university is one of the most formidable resources a region has to reinvent and grow its economy. This paper is the first of two that outlines a process of building research universities that enhance regional technology development and facilitate flexible networks of collaboration and resource sharing. Although the…

  15. Baryogenesis in an inflationary universe

    International Nuclear Information System (INIS)

    Dodelson, S.

    1988-01-01

    The existence of matter in our universe today is a result of fundamental processes in the early universe. This matter is the remnant of an asymmetry between matter and anti-matter. How that asymmetry developed is the focus of this thesis. A statistical mechanical analysis is given of baryogenesis after an inflationary era

  16. Universality of the Unruh effect

    Science.gov (United States)

    Modesto, Leonardo; Myung, Yun Soo; Yi, Sang-Heon

    2018-02-01

    In this paper we prove the universal nature of the Unruh effect in a general class of weakly nonlocal field theories. At the same time we solve the tension between two conflicting claims published in literature. Our universality statement is based on two independent computations based on the canonical formulation as well as path integral formulation of the quantum theory.

  17. Quantum entanglement of baby universes

    International Nuclear Information System (INIS)

    Aganagic, Mina; Okuda, Takuya; Ooguri, Hirosi

    2007-01-01

    We study quantum entanglements of baby universes which appear in non-perturbative corrections to the OSV formula for the entropy of extremal black holes in type IIA string theory compactified on the local Calabi-Yau manifold defined as a rank 2 vector bundle over an arbitrary genus G Riemann surface. This generalizes the result for G=1 in hep-th/0504221. Non-perturbative terms can be organized into a sum over contributions from baby universes, and the total wave-function is their coherent superposition in the third quantized Hilbert space. We find that half of the universes preserve one set of supercharges while the other half preserve a different set, making the total universe stable but non-BPS. The parent universe generates baby universes by brane/anti-brane pair creation, and baby universes are correlated by conservation of non-normalizable D-brane charges under the process. There are no other source of entanglement of baby universes, and all possible states are superposed with the equal weight

  18. Beyond QCD: A Composite Universe

    DEFF Research Database (Denmark)

    Sannino, Francesco

    Strong dynamics constitutes one of the pillars of the standard model of particle interactions, and it accounts for the bulk of the visible matter in the universe. It is therefore a well posed question to ask if the rest of the universe can be described in terms of new highly natural four...

  19. Baby universes with induced gravity

    International Nuclear Information System (INIS)

    Gao Yihong; Gao Hongbo

    1989-01-01

    In this paper some quantum effects of baby universes with induced gravity are discussed. It is proved that the interactions between the baby-parent universes are non-local, and argue that the induced low-energy cosmological constant is zero. This argument does not depend on the detail of the induced potential

  20. Quantum entanglement of baby universes

    International Nuclear Information System (INIS)

    Essman, Eric P.; Aganagic, Mina; Okuda, Takuya; Ooguri, Hirosi

    2006-01-01

    We study quantum entanglements of baby universes which appear in non-perturbative corrections to the OSV formula for the entropy of extremal black holes in type IIA string theory compactified on the local Calabi-Yau manifold defined as a rank 2 vector bundle over an arbitrary genus G Riemann surface. This generalizes the result for G=1 in hep-th/0504221. Non-perturbative terms can be organized into a sum over contributions from baby universes, and the total wave-function is their coherent superposition in the third quantized Hilbert space. We find that half of the universes preserve one set of supercharges while the other half preserve a different set, making the total universe stable but non-BPS. The parent universe generates baby universes by brane/anti-brane pair creation, and baby universes are correlated by conservation of non-normalizable D-brane charges under the process. There are no other source of entanglement of baby universes, and all possible states are superposed with the equal weight

  1. Psychiatric Epidemiology: The University Paradigm

    Science.gov (United States)

    Favazza, Armando R.

    1976-01-01

    In an effort to provide a meaningful didactic experience within the constraint of limited teaching hours, the author searched for a "community" which might be examined. A community fulfilling the established criteria for trainees in a university training program is the university itself. Its use is described. (LBH)

  2. The Expanding Universe: Dark Energy

    Energy Technology Data Exchange (ETDEWEB)

    Lincoln, Don [Fermilab; Nord, Brian [Fermilab

    2014-09-01

    In 1998, observations of distant supernovae led physicists that not only was the universe expanding, but the expansion was speeding up. In this article, we describe the evidence for an expanding universe and describe what physicists and cosmologists have learned in the intervening years. The target audience for this article is high school physics teachers and college physics professors at teaching institutions.

  3. University Rankings: The Web Ranking

    Science.gov (United States)

    Aguillo, Isidro F.

    2012-01-01

    The publication in 2003 of the Ranking of Universities by Jiao Tong University of Shanghai has revolutionized not only academic studies on Higher Education, but has also had an important impact on the national policies and the individual strategies of the sector. The work gathers the main characteristics of this and other global university…

  4. University Rankings and Social Science

    Science.gov (United States)

    Marginson, Simon

    2014-01-01

    University rankings widely affect the behaviours of prospective students and their families, university executive leaders, academic faculty, governments and investors in higher education. Yet the social science foundations of global rankings receive little scrutiny. Rankings that simply recycle reputation without any necessary connection to real…

  5. Maritime Cyber Security University Research

    Science.gov (United States)

    2016-05-01

    i Classification | CG-926 RDC | author | audience | month year Maritime Cyber Security University Research Phase I - Final Report...Distribution Statement A: Approved for public release; distribution is unlimited. May 2016 Report No. CG-D-06-16 Maritime Cyber Security...Director United States Coast Guard Research & Development Center 1 Chelsea Street New London, CT 06320 Maritime Cyber Security University

  6. The Philosophy of University Housing

    Science.gov (United States)

    Wallace, James A.

    2012-01-01

    This article examines a stated philosophy of university housing and the philosophy's effect on the facilitation of the personal and intellectual growth of students residing in the residence halls and the development of a sense of community. This particular philosophy governs the housing operations at Southern Illinois University at Carbondale.…

  7. Language Alternation in University Classrooms

    Science.gov (United States)

    Taha, T. A.

    2008-01-01

    This paper examines the alternate use of Arabic and English in the context of a university classroom, where a policy to use the former language in place of the latter was being implemented. Analysis of a sample of recorded university lectures of English and Arabic medium classes in sciences and humanities reveals that teachers use code switching,…

  8. (Re)Discovering University Autonomy

    DEFF Research Database (Denmark)

    This book challenges traditional approach to university autonomy which is based on four pillars: organisational, financial, human resource, and academic. The main thesis is that a fuller understanding of university autonomy can only be obtained through a more holistic view of the complex inter-re...

  9. Universities: Engaging with Local Communities

    Science.gov (United States)

    Universities UK, 2010

    2010-01-01

    This leaflet illustrates the many ways in which universities impact on the local area. Universities are a major contributor to the economy in their own right, both as employers and purchasers of goods. Their social and cultural influence is also felt through their provision of: (1) art galleries, museums and exhibitions; (2) cinemas and theatres;…

  10. The expanding universe: an introduction

    OpenAIRE

    Pössel, Markus

    2017-01-01

    An introduction to the physics and mathematics of the expanding universe, using no more than high-school level / undergraduate mathematics. Covered are the basics of scale factor expansion, the dynamics of the expanding universe, various distance concepts and the generalized redshift-luminosity relation, among other topics.

  11. University Teaching around the World.

    Science.gov (United States)

    Ballantine, Jeanne

    1989-01-01

    Explores the concept of good teaching in universities worldwide by interviewing professors and exchange students from USSR, England, Spain, Yugoslavia, the Soviet Union, Turkey, India, Malaysia, the Philippines, China, Hong Kong, Taiwan, and Japan. Finds that teaching receives low priority in elite institutions while universities with open access…

  12. Water Recycling in Schools & Universities

    Science.gov (United States)

    Meeten, Nick

    2013-01-01

    Consider the waste streams generated in schools and universities. So what is in the typical used water generated in schools and universities? It is typically about 99 percent water, with the remaining 1 percent mainly made up of organic compounds. Used water contains nutrients such as nitrogen and phosphorous. When one judges it on its quality, it…

  13. University Satellite Campus Management Models

    Science.gov (United States)

    Fraser, Doug; Stott, Ken

    2015-01-01

    Among the 60 or so university satellite campuses in Australia are many that are probably failing to meet the high expectations of their universities and the communities they were designed to serve. While in some cases this may be due to the demand driven system, it may also be attributable in part to the ways in which they are managed. The…

  14. A Model of Nonsingular Universe

    Directory of Open Access Journals (Sweden)

    Changjun Gao

    2012-07-01

    Full Text Available In the background of Friedmann–Robertson–Walker Universe, there exists Hawking radiation which comes from the cosmic apparent horizon due to quantum effect. Although the Hawking radiation on the late time evolution of the universe could be safely neglected, it plays an important role in the very early stage of the universe. In view of this point, we identify the temperature in the scalar field potential with the Hawking temperature of cosmic apparent horizon. Then we find a nonsingular universe sourced by the temperature-dependent scalar field. We find that the universe could be created from a de Sitter phase which has the Planck energy density. Thus the Big-Bang singularity is avoided.

  15. The Challenge of University Autonomy

    DEFF Research Database (Denmark)

    Reilly, John; Turcan, Romeo V.; Bugaian, Larisa

    2016-01-01

    The authors introduce the reader to the book, providing a historical perspective and a current understanding of university autonomy. While appreciating the central role of the four dimensions of university autonomy – organisational, financial, human resource, and academic – the authors conjecture...... that a fuller understanding of university autonomy can only be obtained through a holistic view of the complex inter-relationships between stakeholders and policies which can reinforce and, equally, pull in opposite directions. This holistic view is represented in a model of institutional university autonomy......, which is discussed at length in the chapter. The authors conclude by presenting international case studies that give new insights and reinforce our understanding that the issues relating to institutional university autonomy are genuinely global....

  16. [Changes in body weight of the university students at university].

    Science.gov (United States)

    Soto Ruiz, María Nelia; Aguinaga Ontonso, Inés; Canga Armayor, Navidad; Guillén-Grima, Francisco; Hermoso de Mendoza, Juana; Serrano Monzo, Inmaculada; Marín Fernández, Blanca

    2015-06-01

    One of the strategies for the prevention of the obesity is the identification of critical periods of gain weight. Some studies confirm gain weight during the university period. The purpose of the present study was to determine the changes in the body weight of the university students in Navarre. Prospective cohort study. Public University of Navarre and the University of Navarre, in Pamplona. Study examined weight change among 452 students attending at university in Pamplona, during first and third course. Four hundred and fifty two students completed the questionnaire. Weight and height were measures and body mass index was calculated. The mean body weight increased 0,600 kg, 1,8 kg for males and no change in body weight was observed in female. 44,7 % of students gained weight (60,8 % of men and 36,8 % of women), and the gain weight was of 3,4 kg. University years are a critical factor for the gain weight, particularly males. Consideration of this, is necessary the development of effective weight gain prevention strategies during the university. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  17. Kyoto University-National Taiwan University International Symposium "Social Cognitive Biology on Representation of Environment

    OpenAIRE

    Saiki, Jun

    2016-01-01

    Sponsored by Kyoto University, National Taiwan University; Cosponsored by Unit for Advanced Studies of the Human Mind, Kyoto University, Kokoro Research Center, Kyoto University, Supported by Supporting Program for InteRaction-based Initiative Team Studies (SPIRITS), Kyoto University

  18. Sustaining Community-University Collaborations: The Durham University Model

    Directory of Open Access Journals (Sweden)

    Andrew Russell

    2011-11-01

    Full Text Available Durham University has initiated a community outreach and engagement program based on an evolving multifaceted model. This article analyses the components of the model and looks at how our work at Durham has become increasingly embedded in the structures and processes of the university as it has developed. The strengths and weaknesses in what has been achieved are highlighted, as is the future vision for the further development of this innovative community-university program. Keywords Public engagement; community partnerships; employer supported volunteering; corporate social responsibility

  19. Acceleration of black hole universe

    Science.gov (United States)

    Zhang, T. X.; Frederick, C.

    2014-01-01

    Recently, Zhang slightly modified the standard big bang theory and developed a new cosmological model called black hole universe, which is consistent with Mach's principle, governed by Einstein's general theory of relativity, and able to explain all observations of the universe. Previous studies accounted for the origin, structure, evolution, expansion, and cosmic microwave background radiation of the black hole universe, which grew from a star-like black hole with several solar masses through a supermassive black hole with billions of solar masses to the present state with hundred billion-trillions of solar masses by accreting ambient matter and merging with other black holes. This paper investigates acceleration of the black hole universe and provides an alternative explanation for the redshift and luminosity distance measurements of type Ia supernovae. The results indicate that the black hole universe accelerates its expansion when it accretes the ambient matter in an increasing rate. In other words, i.e., when the second-order derivative of the mass of the black hole universe with respect to the time is positive . For a constant deceleration parameter , we can perfectly explain the type Ia supernova measurements with the reduced chi-square to be very close to unity, χ red˜1.0012. The expansion and acceleration of black hole universe are driven by external energy.

  20. Tools to probe the universe

    International Nuclear Information System (INIS)

    Lagage, P.O.; Augueres, J.L.; Amiaux, J.; Cara, Ch.; Fontignie, J.; Rio, Y.; Fermon, C.; Pannetier-Lecoeur, M.; De Vismes, A.; Cordier, B.; Fesquet, M.; Ferrando, Ph.; Authier, M.; Pantin, E.; Glicenstein, J.F.; Boulade, O.; Refregier, A.; Stolarczyk, Th.; Agnese, P.; Rodriguez, L.; Agnese, P.; Pigot, C.; Duband, L.; Limousin, O.; Delagnes, E.; Turck-Chieze, S.; Carton, P.H.; Starck, J.L.; Bournaud, F.; Teyssier, R.; Audit, E.; Brun, A.S.; Leca, P.; Menache, Ch.; Pomarede, D.; Thooris, B.; Meis, C.

    2009-01-01

    This special issue of Clefs CEA journal is entirely devoted to astrophysics and to the exploration and probing of the Universe. The second part of this dossier, described here, makes a status of the tools used to probe the universe: telescopes, imaging spectrometers, data processing and simulation. Content: A - Telescopes of the future: 1. Seeing further out: JWST: looking back on a past 13 billion years old, Space specifics: the learning curve to know-how, Fabricating a corona-graph mask, SVOM, a satellite to detect the explosions of the first stars to be formed in the Universe; 2. Seeing more precisely: SIMBOL-X, pioneering formation flying, ELT/METIS, a 42-meter giant, One hundred telescopes for the CTA arrays; 3. Seeing wider: Euclid, mapping the extragalactic sky, ANTARES: the neutrino, another cosmic messenger; B - The new generation of imaging spectrometers: Observing the Universe in the submillimeter spectral region, The X-ray Universe, Space cryo-coolers, Out in the extreme, tumultuous Universe, Probing the Sun with GOLF-NG, Focus: From light to imagery; C - Data analysis in astrophysics; D - Numerical simulation in astrophysics: Information technology and theoretical predictions in astrophysics, Supercomputers for a better understanding of the Universe, The visualization of astrophysical simulations, Godunov, a numerical platform for education and research

  1. A Closed Universe Expanding Forever

    Directory of Open Access Journals (Sweden)

    Silva N. P.

    2014-07-01

    Full Text Available In a recent paper, the expression a ( t = e H 0 T 0 [ ( t T 0 where = 0 : 5804, was proposed for the expansion factor of our Universe. According to it, gravity dominates the expan- sion ( matter era until the age of T ⋆ = 3 : 214 Gyr and, after that, dark energy dominates ( dark energy era leading to an eternal expansion, no matter if the Universe is closed, flat or open. In this paper we consider only the closed version and show that there is an upper limit for the size of the radial comoving coordinate, beyond which nothing is observed by our fundamental observer, on Earth. Our observable Universe may be only a tiny portion of a much bigger Universe most of it unobservable to us. This leads to the idea that an endless number of other fundamental observers may live on equal number of Universes similar to ours. Either we talk about many Universes — Multiverse — or about an unique Universe, only part of it observable to us.

  2. University crisis and social responsibility

    Directory of Open Access Journals (Sweden)

    José Camilo dos Santos Filho

    2016-01-01

    Full Text Available The purpose of this study was to investigate the repercussion of the recent crisis of the university on its mission and responsibility and, from this reflection, to propose ways for the consolidation of this responsibility. The three main crisis faced by the university  from the middle of the XXth century identified by Boaventura Souza Santos as crisis of hegemony, of legitimacy and institutional, constituted the framework of discussion of the problem of social responsibility of the university. Although true for the universities of the advanced countries, the loss of hegemony in the area of research still does not occur in Brazilian university. To overcome the crisis of legitimacy, the creation of advanced academic and professional training institutions for the cultivation of the intellectual and professional elite of the country, as well as of non university institutions of mass higher education for the cultural and technological formation of the youth is justified. To make possible the access to these institutions by discriminated socioeconomic segments of society, the adoption of the policy of affirmative action in the form of quotas is justified.  The overcoming of the institutional crisis will be achieved when the State respect the specificity of the universities and when the evaluation criteria of her functions be adequate to her specific nature and the titularity of the evaluation belong to the institutions themselves assuring the external evaluation by effective pairs and not by pairs coopted by the State.

  3. The American University of Beirut

    DEFF Research Database (Denmark)

    Bertelsen, Rasmus Gjedssø

    2016-01-01

    with American society through its board of trustees. American civil society has been a major financial partner since the missionary days to modern day foundation philanthropy. American business has supported the university and recruited its graduates. American government has supported the university financially...... and politically. The chapter compares the transnational relations of the AUB, the other classical American overseas universities with missionary roots in the Middle East (AUC and LAU), the more than 20 American higher education institutions founded in China around 1900 (which did not survive the Korean War...

  4. De-Internationalization of Universities

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Gulieva, Valeria

    Alongside student and staff mobility, universities these days get also actively involved in out-ward cross-border activities, such as licensing, entering joint ventures and establishing campuses. These cross-border activities are not without pitfalls however. A large number of universities de-int...... on withdrawals from franchise, joint venture, and branch campus operations. We use the concept of de-internationalization as a theoretical lens and conduct a review of available unobtrusive data to identify reasons and patterns of universities' withdrawals from international markets....

  5. Achieving Universal Access to Broadband

    Directory of Open Access Journals (Sweden)

    Morten FALCH

    2009-01-01

    Full Text Available The paper discusses appropriate policy measures for achieving universal access to broadband services in Europe. Access can be delivered by means of many different technology solutions described in the paper. This means a greater degree of competition and affects the kind of policy measures to be applied. The paper concludes that other policy measure than the classical universal service obligation are in play, and discusses various policy measures taking the Lisbon process as a point of departure. Available policy measures listed in the paper include, universal service obligation, harmonization, demand stimulation, public support for extending the infrastructure, public private partnerships (PPP, and others.

  6. Hohenheim University. 1991 research report

    International Nuclear Information System (INIS)

    Geiler, U.

    1992-06-01

    The 1991 Research Report of the Hohenheim University near Stuttgart is based on data collected in 1989 and extensively in 1990 and 1991. The progress reports were sent to all of the faculties, institutions, particular research areas and centres of the University. Questions were posed regarding current and recently completed projects. The final version was adapted for print. The survey also enquired about financial support from third parties. The numerous contacts abroad of the Hohenheim University are also documented in this book. Finally, it was asked under which of the nine main Hohenheim research programme headings the particular project could be listed. (orig.) [de

  7. How old is the universe?

    CERN Document Server

    Weintraub, David A

    2010-01-01

    Astronomers have determined that our universe is 13.7 billion years old. How exactly did they come to this precise conclusion? How Old Is the Universe? tells the incredible story of how astronomers solved one of the most compelling mysteries in science and, along the way, introduces readers to fundamental concepts and cutting-edge advances in modern astronomy. The age of our universe poses a deceptively simple question, and its answer carries profound implications for science, religion, and philosophy. David Weintraub traces the centuries-old quest by astronomers to fathom the

  8. Baby universes, fine tuning problems

    International Nuclear Information System (INIS)

    Nielsen, H.B.; Ninomiya, Masao.

    1988-12-01

    We review the recently popular 'theory of baby universes' put forward by Banks, Coleman and Hawking. We then derive the strong CP breaking coefficient θ-bar to be very small, in a similar manner to the derivation of the cosmological constant being zero. A solution for an old controversy concerning the entropy creation in black holes is also discussed. We finally confront the baby universe theory with random dynamics. We conclude that the theory of baby universes is so successful that the essential features are likely true and might have to go into a right theory even if with some troubles at first. (author)

  9. Nuclear history of the universe

    Energy Technology Data Exchange (ETDEWEB)

    Marx, Gy [Eoetvoes Lorand Tudomanyegyetem, Budapest (Hungary). Atomfizikai Tanszek

    1982-01-01

    A brief summary of the cosmogony of our universe following the big bang is given, including the production of the elements, the astronomical processes and the evolution of stars, the planets and life. Along with the social development the energy need of society has been growing and to meet this demand, other than chemical forms of stored energy in the universe is to be released. The nuclear power utilized today and in the future is related to the energy stored at the beginning of the universe. The cosmological and physical background of nuclear energy storage since the big bang and of the reasons of its convertibility into power is explained.

  10. The organization of the Universe

    International Nuclear Information System (INIS)

    Wilkinson, D.

    1981-01-01

    In this introductory lecture of a series on the nature of matter the author establishes the range and scale of the particles and forces involved and considers the Universe in which they are found. Gravity, electromagnetism, the strong and the weak forces and their possible unification in Grand Unified Theories are discussed. The origin of the Universe, the Big Bang model and the present observable Universe, its dimensions and the forces that shape it are considered. Present thinking is examined concerning the structure of the atom, sub-nuclear forces and the possible constituents of protons and the forces holding them together. (U.K.)

  11. Thermodynamics of de Sitter universes

    International Nuclear Information System (INIS)

    Huang Chaoguang; Liu Liao; Wang Bobo

    2002-01-01

    It is shown that the first law of thermodynamics can be applied to the de Sitter universe to relate its vacuum energy, pressure, entropy of horizon, chemical potential, etc., when the cosmological constant changes due to the fluctuation of the vacuum or other reasons. The second law should be reformulated in the form that the spontaneous decay of the vacuum never makes the entropy of the de Sitter universe decrease. The third law of thermodynamics, applying to the de Sitter universe, implies that the cosmological constant cannot reach zero by finite physical processes. The relation to the holographic principle is also briefly discussed

  12. Cosmology in the plasma universe

    International Nuclear Information System (INIS)

    Alfven, H.

    1987-05-01

    Space observations have opened the spectral regions of X-rays and γ-rays, which are produced by plasma processes. The Plasma Universe derived from observations in these regions is drastically different from the now generally accepted 'Visual Light Universe' based on visual light observations alone. Historically this transitions can be compared only to the transition from the geocentric to the heliocentric cosmology. The purpose of this paper is to discuss what criteria a cosmological theory must satisfy in order to be acceptable in the Plasma Universe. (author)

  13. Beyond Divestment: The Moral University.

    Science.gov (United States)

    Pifer, Alan

    1986-01-01

    Issues in university divestment of stock in American corporations doing business in South Africa, in protest of apartheid, are discussed in light of the American experience with discrimination. Divestment options are examined. (MSE)

  14. [Smoking among undergraduate university students].

    Science.gov (United States)

    Barra C, Lisseth; Fernández P, Paola; Granada G, Felipe; Ávila C, Paula; Mallea M, Javier; Rodríguez M, Yeniffer

    2015-10-01

    Smoking is one of the major Public Health problems worldwide. To study the frequency of tobacco smoking among undergraduate students of a Chilean university. An opinion survey was sent by e-mail to all undergraduate students of a university, registering gender, age, study years, study area, smoking behavior, motivation (reason for smoking), intention to quit and tobacco law perception. 1,008 (57% females) out of 11,679 surveys were answered back. Prevalence of active smoking among respondents was 36%, without association with gender, age or years of study. However, students from scientific areas had a lower prevalence. Seventy seven percent of smokers manifested the intention to quit the habit or have started quitting already. Ninety six percent were acquainted with the tobacco law and by 73% agreed with it. Smoking is highly prevalent among university students. It is necessary to develop strategies for smoking cessation within universities that may prevent or reduce tobacco smoking among students.

  15. Neutrino number of the universe

    International Nuclear Information System (INIS)

    Kolb, E.W.

    1981-01-01

    The influence of grand unified theories on the lepton number of the universe is reviewed. A scenario is presented for the generation of a large (>> 1) lepton number and a small (<< 1) baryon number. 15 references

  16. Astronomy in the Digital Universe

    Science.gov (United States)

    Haisch, Bernard M.; Lindblom, J.; Terzian, Y.

    2006-12-01

    The Digital Universe is an Internet project whose mission is to provide free, accurate, unbiased information covering all aspects of human knowledge, and to inspire humans to learn, make use of, and expand this knowledge. It is planned to be a decades long effort, inspired by the Encyclopedia Galactica concept popularized by Carl Sagan, and is being developed by the non-profit Digital Universe Foundation. A worldwide network of experts is responsible for selecting content featured within the Digital Universe. The first publicly available content is the Encyclopedia of Earth, a Boston University project headed by Prof. Cutler Cleveland, which will be part of the Earth Portal. The second major content area will be an analogous Encyclopedia of the Cosmos to be part of the Cosmos Portal. It is anticipated that this will evolve into a major resource for astronomy education. Authors and topic editors are now being recruited for the Encyclopedia of the Cosmos.

  17. Guest Comment: Universal Language Requirement.

    Science.gov (United States)

    Sherwood, Bruce Arne

    1979-01-01

    Explains that reading English among Scientists is almost universal, however, there are enormous problems with spoken English. Advocates the use of Esperanto as a viable alternative, and as a language requirement for graduate work. (GA)

  18. Particle accelerator; the Universe machine

    CERN Multimedia

    Yurkewicz, Katie

    2008-01-01

    "In summer 2008, scientists will switch on one of the largest machines in the world to search for the smallest of particle. CERN's Large Hadron Collider particle accelerator has the potential to chagne our understanding of the Universe."

  19. Flinders University Electric Vehicle Project

    Science.gov (United States)

    Atkinson, D. A.

    1973-01-01

    Outlines the specifications and principles involved in the operation of an electric car developed by the Institute of Solar and Electochemical Energy Conversion at Flinders University in South Australia. (JR)

  20. STORYTELLING AND UNIVERSITY BRANDING IDENTITY

    Directory of Open Access Journals (Sweden)

    ANDREEA MONICA STATE

    2016-08-01

    Full Text Available The present article sets out to clarify the concepts of storytelling and branding, with a focus on university branding and visual identity – the latter being a vital element to a brand’s uniqueness. Storytelling is an important method of brand construction, and it entails a strong power of seduction. Branding is increasingly more about storytelling. Practically, a story is an image made up of facts, feelings and interpretations, which are often told to us solely by the university itself. As such, the brand appears on the market accompanied by its identity. Identity is what we aim to express with help of the brand. Implementing a system of visual identity that would help to harmoniously develop a university brand requires a handbook of visual identity. The present article aims to be a starting point for such a handbook serving the University of Bucharest, which currently does not own such a handbook

  1. Having Faith in the University

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard; Barnett, Ronald

    and strange dimensions of the world are revealed to us. However, knowledge may also lead us in to darker places and confront us with layers of reality which may be unsettling or even terrifying. We examine, in line with the idea of ecologies of the university (Barnett, 2018) and the mystery of knowledge...... of the academy’s past, in silencing voices, as well as having now opportunities to engage anew with those hitherto without voices. As Lingis argues (1998), there is an ethical imperative embedded within research and knowledge, where academics through knowledge can release the voices of the marginalized......). Understanding the University. Institution, Idea, Possibilities. London & New York: Routledge Barnett, R. (2018). The Ecological University. A Feasible Utopia. London & New York: Routledge Barnett, R. & Bengtsen, S. (2017). Universities and Epistemology: From a Dissolution of Knowledge to the Emergence of a new...

  2. Dark energy and universal antigravitation

    International Nuclear Information System (INIS)

    Chernin, A D

    2008-01-01

    Universal antigravitation, a new physical phenomenon discovered astronomically at distances of 5 to 8 billion light years, manifests itself as cosmic repulsion that acts between distant galaxies and overcomes their gravitational attraction, resulting in the accelerating expansion of the Universe. The source of the antigravitation is not galaxies or any other bodies of nature but a previously unknown form of mass/energy that has been termed dark energy. Dark energy accounts for 70 to 80% of the total mass and energy of the Universe and, in macroscopic terms, is a kind of continuous medium that fills the entire space of the Universe and is characterized by positive density and negative pressure. With its physical nature and microscopic structure unknown, dark energy is among the most critical challenges fundamental science faces in the twenty-first century. (physics of our days)

  3. Strategic management for university hospitals

    Directory of Open Access Journals (Sweden)

    Martha Isabel Riaño-Casallas

    2016-10-01

    Full Text Available Introduction: There are several approaches and schools that support strategic management processes. University hospitals require the implementation of a strategic approach to their management, since they are a particular type of organization with the triple mission of providing health care, education and research. Objective: To propose a strategic profile for a university hospital. Materials and methods: The theoretical framework of strategic management was analyzed and some particular components of hospital management were studied; based on these criteria, the strategic management process in three high complexity hospitals of Bogotá, D.C. was examined and a profile of both the objectives and the functional strategies for the hospital was proposed. Results: The main strategic thinking schools are presented; the processes and components of strategic management are described, and a strategic management profile for a university hospital is proposed. Conclusion: The strategic orientation of management for an institution with the characteristics of a university hospital facilitates achieving organizational objectives.

  4. Quantum field theory of universe

    International Nuclear Information System (INIS)

    Hosoya, Akio; Morikawa, Masahiro.

    1988-08-01

    As is well-known, the wave function of universe dictated by the Wheeler-DeWitt equation has a difficulty in its probabilistic interpretation. In order to overcome this difficulty, we explore a theoretical possibility of the second quantization of universe, following the same passage historically taken for the Klein-Gordon particles and the Nambu-Goto strings. It turns out that multiple production of universes is an inevitable consequence even if the initial state is nothing. The problematical interpretation of wave function of universe is circumvented by introducing an internal comoving model detector, which is an analogue of the DeWitt-Unruh detector in the quantum field theory in curved space-time. (author)

  5. Cosmology and the early universe

    CERN Document Server

    Di Bari, Pasquale

    2018-01-01

    This book discusses cosmology from both an observational and a strong theoretical perspective. The first part focuses on gravitation, notably the expansion of the universe and determination of cosmological parameters, before moving onto the main emphasis of the book, the physics of the early universe, and the connections between cosmological models and particle physics. Readers will gain a comprehensive account of cosmology and the latest observational results, without requiring prior knowledge of relativistic theories, making the text ideal for students.

  6. Observing the very early universe

    CERN Document Server

    Steinhardt, Paul Joseph

    1995-01-01

    Cosmology is entering an historic epoch in which a dazzling array of new observations will decisively test our theories of the origin and evolution of the Universe. Many of the theoretical proposals have profound implications for our understanding of high-energy physics. This lecture series will review some of the leading ideas, especially the inflationary model of the universe, and explain the astrophysical and cosmological observations anticipated for the next decade that will be critical in determining their validity.

  7. Virtual Models of European Universities

    DEFF Research Database (Denmark)

    Pedersen, Sanya Gertsen

    2003-01-01

    The study provides a detailed report on the current and possible future use of ICT by European universities for educational and organisational purposes. The report presents: • A general description of the current situation regarding the use of ICT in EU universities in both the educational...... and the organisational setting. • An in-depth study of selected institutions through case studies. • A future-oriented analysis. • A set of recommendations for future action....

  8. (Re)Discovering University Autonomy

    DEFF Research Database (Denmark)

    Reilly, John; Turcan, Romeo V.; Bugaian, Larisa

    2016-01-01

    discussion of challenges. The other outcome is the extent to which academic colleagues in a wide-range of disciplines and not directly engaged with research on university autonomy may not perceive or engage with the wider autonomy outcomes of their work and as a result their own case studies may not fully...... identify the autonomy impact real or potential. Many academic staff take for granted university autonomy without questioning its sometimes contradictory assumptions and impacts....

  9. University Rankings and Social Science

    OpenAIRE

    Marginson, S.

    2014-01-01

    University rankings widely affect the behaviours of prospective students and their families, university executive leaders, academic faculty, governments and investors in higher education. Yet the social science foundations of global rankings receive little scrutiny. Rankings that simply recycle reputation without any necessary connection to real outputs are of no common value. It is necessary that rankings be soundly based in scientific terms if a virtuous relationship between performance and...

  10. ICT uses between university students

    Directory of Open Access Journals (Sweden)

    Iolanda García

    2012-11-01

    Full Text Available The main goal of this paper is to analyse gender differences in the use of ICT among university students. We present the results of a study about the uses and the perception in relation to ICT in everyday life and in academia. The study is based on a statistical simple of 1042 students from 5 different universities. The results show gender differences, both with respect to use as their perception of technology.

  11. UNPACKED: Middlesex University Product Design

    OpenAIRE

    Griffiths, Wyn

    2013-01-01

    'UNPACKED: Middlesex University Product Design' is showcasing the 2013 graduating group of the Middlesex University BA/BSc Product Design course.\\ud The group of Product Designers will be exhibiting at two places in 2013; at the Old Truman Brewery, Brick Lane, London from 6-10th June and at the prestigious New Designers exhibition, Business Design Centre, London 3-6th July.

  12. Technology transfer of Cornell university

    International Nuclear Information System (INIS)

    Yoo, Wan Sik

    2010-01-01

    This book introduces technology transfer of Cornell university which deals with introduction of Cornell university, composition of organization and practice of technology transfer : a research contract, research perform, invention report, evaluation and succession of invention, a patent application and management, marketing, negotiation and writing contract, management of contract, compensation, result of technology transfer, cases of success on technical commercialization and daily life of technology transfer center.

  13. Expanding Universe: slowdown or speedup?

    International Nuclear Information System (INIS)

    Bolotin, Yuriy L; Erokhin, Danylo A; Lemets, Oleg A

    2012-01-01

    The kinematics and the dynamical interpretation of cosmological expansion are reviewed in a widely accessible manner with emphasis on the acceleration aspect. Virtually all the approaches that can in principle account for the accelerated expansion of the Universe are reviewed, including dark energy as an item in the energy budget of the Universe, modified Einstein equations, and, on a fundamentally new level, the use of the holographic principle. (physics of our days)

  14. Universe: inflation out of chaos

    Energy Technology Data Exchange (ETDEWEB)

    Linde, A

    1985-03-07

    The paper reviews the big bang theories of the earliest stages of the evolution of the Universe. The standard model and its associated problems; grand unified theories; scalar fields; and the inflationary Universe scenario; are all described. The newest model - Chaotic inflation, is a variation on the inflationary theme, and is outlined. Applications of this model to some of the standard model problems are discussed.

  15. Dimensional transition of the universe

    International Nuclear Information System (INIS)

    Terazawa, Hidezumi.

    1989-08-01

    In the extended n-dimensional Einstein theory of gravitation, where the spacetime dimension can be taken as a 'dynamical variable' which is determined by the 'Hamilton principle' of minimizing the extended Einstein-Hilbert action, it is suggested that our Universe of four-dimensional spacetime may encounter an astonishing dimensional transition into a new universe of three-dimensional or higher-than-four-dimensional spacetime. (author)

  16. A Universe without Weak Interactions

    Energy Technology Data Exchange (ETDEWEB)

    Harnik, Roni; Kribs, Graham D.; Perez, Gilad

    2006-04-07

    A universe without weak interactions is constructed that undergoes big-bang nucleosynthesis, matter domination, structure formation, and star formation. The stars in this universe are able to burn for billions of years, synthesize elements up to iron, and undergo supernova explosions, dispersing heavy elements into the interstellar medium. These definitive claims are supported by a detailed analysis where this hypothetical ''Weakless Universe'' is matched to our Universe by simultaneously adjusting Standard Model and cosmological parameters. For instance, chemistry and nuclear physics are essentially unchanged. The apparent habitability of the Weakless Universe suggests that the anthropic principle does not determine the scale of electroweak breaking, or even require that it be smaller than the Planck scale, so long as technically natural parameters may be suitably adjusted. Whether the multi-parameter adjustment is realized or probable is dependent on the ultraviolet completion, such as the string landscape. Considering a similar analysis for the cosmological constant, however, we argue that no adjustments of other parameters are able to allow the cosmological constant to raise up even remotely close to the Planck scale while obtaining macroscopic structure. The fine-tuning problems associated with the electroweak breaking scale and the cosmological constant therefore appear to be qualitatively different from the perspective of obtaining a habitable universe.

  17. A Universe without Weak Interactions

    International Nuclear Information System (INIS)

    Harnik, R

    2006-01-01

    A universe without weak interactions is constructed that undergoes big-bang nucleosynthesis, matter domination, structure formation, and star formation. The stars in this universe are able to burn for billions of years, synthesize elements up to iron, and undergo supernova explosions, dispersing heavy elements into the interstellar medium. These definitive claims are supported by a detailed analysis where this hypothetical ''Weakless Universe'' is matched to our Universe by simultaneously adjusting Standard Model and cosmological parameters. For instance, chemistry and nuclear physics are essentially unchanged. The apparent habitability of the Weakless Universe suggests that the anthropic principle does not determine the scale of electroweak breaking, or even require that it be smaller than the Planck scale, so long as technically natural parameters may be suitably adjusted. Whether the multi-parameter adjustment is realized or probable is dependent on the ultraviolet completion, such as the string landscape. Considering a similar analysis for the cosmological constant, however, we argue that no adjustments of other parameters are able to allow the cosmological constant to raise up even remotely close to the Planck scale while obtaining macroscopic structure. The fine-tuning problems associated with the electroweak breaking scale and the cosmological constant therefore appear to be qualitatively different from the perspective of obtaining a habitable universe

  18. A universe without weak interactions

    International Nuclear Information System (INIS)

    Harnik, Roni; Kribs, Graham D.; Perez, Gilad

    2006-01-01

    A universe without weak interactions is constructed that undergoes big-bang nucleosynthesis, matter domination, structure formation, and star formation. The stars in this universe are able to burn for billions of years, synthesize elements up to iron, and undergo supernova explosions, dispersing heavy elements into the interstellar medium. These definitive claims are supported by a detailed analysis where this hypothetical ''weakless universe'' is matched to our Universe by simultaneously adjusting standard model and cosmological parameters. For instance, chemistry and nuclear physics are essentially unchanged. The apparent habitability of the weakless universe suggests that the anthropic principle does not determine the scale of electroweak breaking, or even require that it be smaller than the Planck scale, so long as technically natural parameters may be suitably adjusted. Whether the multiparameter adjustment is realized or probable is dependent on the ultraviolet completion, such as the string landscape. Considering a similar analysis for the cosmological constant, however, we argue that no adjustments of other parameters are able to allow the cosmological constant to raise up even remotely close to the Planck scale while obtaining macroscopic structure. The fine-tuning problems associated with the electroweak breaking scale and the cosmological constant therefore appear to be qualitatively different from the perspective of obtaining a habitable universe

  19. Food intake of university students

    Directory of Open Access Journals (Sweden)

    Greyce Luci BERNARDO

    Full Text Available ABSTRACT This narrative literature review aimed to analyze the results of studies on the food intake of university students. A literature search was conducted in July 2014 and updated in July 2016 in the Scopus, MedLine/PubMed, and SciELO databases, using descriptors related to university students and food intake in English and Portuguese. Overall, 37 studies that analyzed university students’ food intake were included in this review, eight of which were conducted in Brazil. The results demonstrated that most university students have unhealthy eating behaviors, such as high intake of fast foods, snacks, sweets, soft drinks, and alcoholic beverages, and low intake of fruits, vegetables, fish, whole grains, and legumes. Undergraduate students of health sciences, such as nursing, nutrition, and medicine, did not have healthier diets. University students’ food intake was characterized as unhealthy, regardless of undergraduate program or sex, especially among students who left the parents’ home and became responsible for their own food. Therefore, there is a need of developing public policies that promote healthy eating habits among students, such as interventions to change their eating habits and increase their access to healthy foods at the university environment.

  20. University Program Management Information System: NASA's University Program Active Projects

    Science.gov (United States)

    Gans, Gary (Technical Monitor)

    2003-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA's objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data. This report was prepared by the Office of Education/N.

  1. The Pragmatic University: A Feasible Utopia?

    Science.gov (United States)

    Badley, Graham

    2016-01-01

    "Imaginings" of the modern university include such ideas as "the ecological university" and "the pragmatic university". In his attempt to separate utopian from dystopian visions of the university, Ronald Barnett concentrates on an analysis of the ecological university and ignores, for example, the case of the…

  2. In Search of Cultural Universals: Translation Universals. Case Studies

    Directory of Open Access Journals (Sweden)

    Gabriela DIMA

    2014-12-01

    Full Text Available Knowledge of the world is disclosed under various shapes, among which language is the best representative. Specific to humans, it renders feelings and thoughts concerning different communication contexts where words become dynamic primitives endowed with meanings, which recreate themes and reconfigure space and time as universal coordinates. The main objective of the paper is to provide a tentative analysis of the way in which translation universals are manifest in translating proverbs and sayings in the short novels Popa Tanda (Pope Tanda and Moara cu Noroc (The Lucky Mill by Ioan Slavici.

  3. curricular innovation in the university

    Directory of Open Access Journals (Sweden)

    María Mercedes Callejas Restrepo

    2013-07-01

    Full Text Available The 21st century sets out new challenges to universities and university professors,who have to debate on the quality of education, the requirements on the teaching and learning, and the proposed curricula for the professional and disciplinary training in the university. In this context, research groups from four Colombian universities have developed a project in order to articulate therelationshipswithin the training of university professors, through the research of their practices and processes of curricular innovation. With such a goal the conformation of pedagogical collectives is promoted, and a reflective process about their pedagogical styles is generated (Callejas&,Corredor, 2002. Action research as a methodology and strategy of professional evelopment is proposed (McKernan, 1999, observation-reflection, planning-action, and then back to observation-reflection.Video recordings of classes, individual and group observation of the recordings, and individual and group interviews that favor reflection processes about the dimensions of the pedagogical style are performed. The analysis of the practice is guided by a complex, investigative and comprehensive vision of the curriculum that articulates theory and practice. The critical recognition that teachers do about their own pedagogical style favors the evolution of their ideas and guides them to start a process of curricular innovation.

  4. Information Classification on University Websites

    DEFF Research Database (Denmark)

    Nawaz, Ather; Clemmensen, Torkil; Hertzum, Morten

    2011-01-01

    Websites are increasingly used as a medium for providing information to university students. The quality of a university website depends on how well the students’ information classification fits with the structure of the information on the website. This paper investigates the information classifi......Websites are increasingly used as a medium for providing information to university students. The quality of a university website depends on how well the students’ information classification fits with the structure of the information on the website. This paper investigates the information...... classification of 14 Danish and 14 Pakistani students and compares it with the information classification of their university website. Brainstorming, card sorting, and task exploration activities were used to discover similarities and differences in the participating students’ classification of website...... information and their ability to navigate the websites. The results of the study indicate group differences in user classification and related taskperformance differences. The main implications of the study are that (a) the edit distance appears a useful measure in cross-country HCI research and practice...

  5. Nuclear education in Japanese universities

    International Nuclear Information System (INIS)

    Yamamuro, Nobuhiro

    1981-01-01

    In 1957, the graduate courses for nuclear engineering were established in Kyoto University, Osaka University and the Tokyo Institute of Technology. Since then, the expansion of nuclear education has kept pace with the growth of the nuclear industry in Japan. The nuclear education in universities in more than 20 years can be roughly divided into three periods. In the first period from 1955 to 1965, nuclear education began at undergraduate level, and the facilities required for the research and education were set up. The imported reactor began the commercial operation in 1966 for the first time, and during the period of high economic growth, the request by the nuclear industry was met by providing special studies in addition to the regular curriculum studies. The research committee on nuclear engineering education was formed, and in 1973, Japan-U.S. cooperative seminar on education program for nuclear engineering was held. The first ''oil crisis'' occurred in 1973, and the significance of nuclear power as an alternative to oil increased. But as nuclear power plants became bigger and increased, the safety and the effect on environment have been discussed. Also the research and development of nuclear fusion have been promoted. All these factors were reflected to the nuclear education in universities. The carricula in universities and the tasks and prospects in nuclear engineering education are described. (Kako, I.)

  6. University Program Management Information System

    Science.gov (United States)

    Gans, Gary (Technical Monitor)

    2004-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA's objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data.

  7. Ethics Education In The University

    Directory of Open Access Journals (Sweden)

    Nguyen K. Q. Trung

    2015-08-01

    Full Text Available Accounting faculty of universities in Vietnam takes an important role in the training of human resources for the society in the field of accounting auditing and taxation. All professors and lecturers who teaching in those faculties have participated in editing and changing the accounting curricular in order to meet the needs of the market labor and requirements of new internationally professional standards. The integration of professional ethics into the curriculum has raised the concern of many universities not only in Vietnam but also in the world. This paper presents the study on teaching and learning of professional ethics at Faculty of Accounting and Auditing of Banking University of HCMC. The results of the study do highlight some recommendations for improving the contents of courses used for the teaching and learning accounting effectively. The research is presented in this paper as follows a short literature review and then the methodology of interviewing the professors in accounting fields who have the best experiences in education of accounting. Also students who are studying accounting course will be interviewed. In addition to content Analysis research methods and a case study approach are used to investigate the whether it is necessary for teaching and learning of Professional Ethics in accounting at Banking University of HCMC. The paper aims to answer the following questions i Should ethics be taught in accounting classes at universities ii How professional ethics has been taught and learned as a separate course or integration into different accounting and auditing courses

  8. University Program Management Information System

    Science.gov (United States)

    2001-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA' objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data.

  9. Information Classification on University Websites

    DEFF Research Database (Denmark)

    Nawaz, Ather; Clemmensen, Torkil; Hertzum, Morten

    2011-01-01

    Websites are increasingly used as a medium for providing information to university students. The quality of a university website depends on how well the students’ information classification fits with the structure of the information on the website. This paper investigates the information classifi......Websites are increasingly used as a medium for providing information to university students. The quality of a university website depends on how well the students’ information classification fits with the structure of the information on the website. This paper investigates the information...... classification of 14 Danish and 14 Pakistani students and compares it with the information classification of their university website. Brainstorming, card sorting, and task exploration activities were used to discover similarities and differences in the participating students’ classification of website...... information and their ability to navigate the websites. The results of the study indicate group differences in user classification and related task-performance differences. The main implications of the study are that (a) the edit distance appears a useful measure in cross-country HCI research and practice...

  10. Association of African Universities : Education and Research ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Association of African Universities : Education and Research Networking Unit. The Association of African Universities (AAU), headquartered in Accra, Ghana, is an international nongovernmental organization (NGO) that promotes cooperation between African universities and with the international community.

  11. University Administrators' Use of Information and Communication ...

    African Journals Online (AJOL)

    University Administrators' Use of Information and Communication Technology for Information Dissemination in the University Environment and Productivity of Academic Staff of Universities in ... Lwati: A Journal of Contemporary Research.

  12. Air University Style and Author Guide

    National Research Council Canada - National Science Library

    Bassett, Marvin

    2005-01-01

    The "Air University Style and Author Guide" is designed to unify the writing of faculty, staff, and students of Air University stylistically, and to give them information about publishing with Air University (AU) Press...

  13. Early Predictors of First-Year Academic Success at University: Pre-University Effort, Pre-University Self-Efficacy, and Pre-University Reasons for Attending University

    Science.gov (United States)

    van Herpen, Sanne G. A.; Meeuwisse, Marieke; Hofman, W. H. Adriaan; Severiens, Sabine E.; Arends, Lidia R.

    2017-01-01

    Given the large number of dropouts in the 1st year at university, it is important to identify early predictors of 1st-year academic success. The present study (n = 453 first-year students) contributes to literature on the transition from secondary to higher education by investigating how the non-cognitive factors "pre-university" effort…

  14. Universal mortality law and immortality

    Science.gov (United States)

    Azbel', Mark Ya.

    2004-10-01

    Well-protected human and laboratory animal populations with abundant resources are evolutionarily unprecedented. Physical approach, which takes advantage of their extensively quantified mortality, establishes that its dominant fraction yields the exact law, which is universal for all animals from yeast to humans. Singularities of the law demonstrate new kinds of stepwise adaptation. The law proves that universal mortality is an evolutionary by-product, which at any given age is reversible, independent of previous life history, and disposable. Life expectancy may be extended, arguably to immortality, by minor biological amendments in the animals. Indeed, in nematodes with a small number of perturbed genes and tissues it increased 6-fold (to 430 years in human terms), with no apparent loss in health and vitality. The law relates universal mortality to specific processes in cells and their genetic regulation.

  15. University Institutional Autonomy in Moldova

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Bugaian, Larisa

    This book introduces four evaluation studies in which the current status of university institutional autonomy in Moldova is evaluated. For the purpose of these evaluation studies, a research methodology was developed by the EUniAM project team and used by the Task Force teams to collect and analy...... in Moldova. Preliminary findings of the evaluation studies were presented at the International Conference on “A Quest to (Re)define University Autonomy” organized by the EUniAM project. At the same time, these findings had an impact on the context of the new Code of Education....... the data. Unobtrusive data in the form of laws regulating directly or indirectly the higher education system in Moldova, governmental and ministerial decrees, university chapters and organizational structures, and education records were collected and analysed. A total number of 144 documents have been...

  16. How to build a universe

    CERN Document Server

    Cox, Brian; Feachem, Alexandra

    2017-01-01

    The Infinite Monkey Cage, the legendary BBC Radio 4 programme, brings you this irreverent celebration of scientific marvels. Join us on a hectic leap through the grand and bizarre ideas conjured up by human imagination, from dark matter to consciousness via neutrinos and earthworms. Professor Brian Cox and Robin Ince muse on multifaceted subjects involved in building a universe, with pearls of wisdom from leading scientists and comedians peppered throughout. Covering billions of concepts and conundrums, they tackle everything from the Big Bang to parallel universes, fierce creatures to extraterrestrial life, brain science to artificial intelligence. How to Build a Universe is an illuminating and inspirational celebration of science - sometimes silly, sometimes astounding and very occasionally facetious.

  17. The Alphabet of the Universe

    CERN Multimedia

    Antonella Del Rosso

    2015-01-01

    One of the most culturally inspiring – yet unexpected – venues where you can find an exhibition about CERN and particle physics these days is the Bibliotheca Alexandrina in Egypt. Discover The Alphabet of the Universe: from CERN to North Africa and the Middle East in the cradle of knowledge par excellence.   The Alphabet of the Universe exhibition in Alexandria. (Image credit: Bibliotheca Alexandrina) With its 400 square metres surface area, about 40 exhibits and more than 50 people involved, The Alphabet of the Universe exhibition was inaugurated on 19 January in the Planetarium Science Centre (PSC), one of the main attractions of the New Library of Alexandria. “The exhibition has been designed to cover four main themes related to particle physics and CERN: what we know; open issues; accelerators and detectors; computing and applications,” explains Barbara Gallavotti, curator of the exhibition. “The exhibits were designed b...

  18. Hopping models and ac universality

    DEFF Research Database (Denmark)

    Dyre, Jeppe; Schrøder, Thomas

    2002-01-01

    Some general relations for hopping models are established. We proceed to discuss the universality of the ac conductivity which arises in the extreme disorder limit of the random barrier model. It is shown that the relevant dimension entering into the diffusion cluster approximation (DCA) is the h......Some general relations for hopping models are established. We proceed to discuss the universality of the ac conductivity which arises in the extreme disorder limit of the random barrier model. It is shown that the relevant dimension entering into the diffusion cluster approximation (DCA......) is the harmonic (fracton) dimension of the diffusion cluster. The temperature scaling of the dimensionless frequency entering into the DCA is discussed. Finally, some open problems regarding ac universality are listed....

  19. DESTRUCTIVE EDUCATIONAL PRACTICES AT UNIVERSITY

    Directory of Open Access Journals (Sweden)

    Андрей Владимирович Феоктистов

    2013-05-01

    Full Text Available The article is devoted to problems of origin and development of destructive educational practices at university. The authors focus on complex of interactions that disturb the existing in the academic environment norms and ethical principles. The most vivid evidence of destructive educational practice is the corruption issue. On the basis of the analyzed publications dealing with dynamics of corruption in the Russian higher education and the results of the survey by questionnaire, carried out at the technical university, the complex of recommendations has been prepared and suggested that is directed at minimization of destructive behavior at university.DOI: http://dx.doi.org/10.12731/2218-7405-2013-4-28

  20. Physics of the plasma universe

    CERN Document Server

    Peratt, Anthony L

    2015-01-01

    Today many scientists recognize plasma as the key element to understanding new observations in near-Earth, interplanetary, interstellar, and intergalactic space; in stars, galaxies, and clusters of galaxies, and throughout the observable universe. Physics of the Plasma Universe, 2nd Edition is an update of observations made across the entire cosmic electromagnetic spectrum over the two decades since the publication of the first edition. It addresses paradigm changing discoveries made by telescopes, planetary probes, satellites, and radio and space telescopes. The contents are the result of the author's 37 years research at Livermore and Los Alamos National Laboratories, and the U.S. Department of Energy. This book covers topics such as the large-scale structure and the filamentary universe; the formation of magnetic fields and galaxies, active galactic nuclei and quasars, the origin and abundance of light elements, star formation and the evolution of solar systems, and cosmic rays. Chapters 8 and 9 are based ...

  1. Universal map for cellular automata

    International Nuclear Information System (INIS)

    García-Morales, V.

    2012-01-01

    A universal map is derived for all deterministic 1D cellular automata (CAs) containing no freely adjustable parameters and valid for any alphabet size and any neighborhood range (including non-symmetrical neighborhoods). The map can be extended to an arbitrary number of dimensions and topologies and to arbitrary order in time. Specific CA maps for the famous Conway's Game of Life and Wolfram's 256 elementary CAs are given. An induction method for CAs, based in the universal map, allows mathematical expressions for the orbits of a wide variety of elementary CAs to be systematically derived. -- Highlights: ► A universal map is derived for all deterministic 1D cellular automata (CA). ► The map is generalized to 2D for Von Neumann, Moore and hexagonal neighborhoods. ► A map for all Wolfram's 256 elementary CAs is derived. ► A map for Conway's “Game of Life” is obtained.

  2. The evolution of the Universe

    CERN Document Server

    García-Bellido, J

    2006-01-01

    With the recent measurements of temperature and polarization anisotropies in the microwave background by WMAP, we have entered a new era of precision cosmology, with the cosmological parameters of a Standard Cosmological Model determined to 1%. This Standard Model is based on the Big Bang theory and the inflationary paradigm, a period of exponential expansion in the early universe responsible for the large-scale homogeneity and spatial flatness of our observable patch of the Universe. The spectrum of metric perturbations, seen in the microwave background as temperature anisotropies, were produced during inflation from quantum fluctuations that were stretched to cosmological size by the expansion, and later gave rise, via gravitational collapse, to the observed large-scale structure of clusters and superclusters of galaxies. Furthermore, the same theory predicts that all the matter and radiation in the universe today originated at the end of inflation from an explosive production of particles that could also h...

  3. Physics of the early universe

    International Nuclear Information System (INIS)

    Brandenberger, R.H.

    1987-01-01

    When studying the evolution of the very early universe it is necessary to use a description of matter which is appropriate at very high energies, namely in terms of quantum fields. In such models there may be a period during which the ratio of pressure and energy density is - 1, an equation of state which leads to an exponential expansion of the universe (inflation). There may also arise stable topological defects similar to vortex lines in condensed matter physics. These defects (cosmic strings) form seeds about which gas can accrete to form galaxies and clusters of galaxies. The author reviews inflation and cosmic strings, emphasizing their role in generating the energy density perturbations which are required in order to explain the existence of structures in the universe

  4. Florida Campus Visit & University Tour | Nova Southeastern University

    Science.gov (United States)

    Huizenga College of Business and Entrepreneurship Halmos College of Natural Sciences and Oceanography Law University School Undergraduate Academic Programs Explore all of the academic opportunities that SharkLink Student Portal Graduate & Professional Master's Over 60 degrees in fields like business

  5. Libraries at Nova Southeastern University | Nova Southeastern University

    Science.gov (United States)

    Huizenga College of Business and Entrepreneurship Halmos College of Natural Sciences and Oceanography Law University School Undergraduate Academic Programs Explore all of the academic opportunities that SharkLink Student Portal Graduate & Professional Master's Over 60 degrees in fields like business

  6. El Espanol como Idioma Universal (Spanish as a Universal Language)

    Science.gov (United States)

    Mijares, Jose

    1977-01-01

    A proposal to transform Spanish into a universal language because it possesses the prerequisites: it is a living language, spoken in several countries; it is a natural language; and it uses the ordinary alphabet. Details on simplification and standardization are given. (Text is in Spanish.) (AMH)

  7. The Integrative University: Why University Management Is Different

    Science.gov (United States)

    Temple, Paul

    2008-01-01

    Managing universities "is" different from managing in most other sorts of organisation. In this article, the author shows why this claim is more than just special pleading, and how it relates to the particular form of the organisation. Appreciating their integrative aspects helps people to understand some of the difficulties that they regularly…

  8. The Comparison Study of Six University Archives

    Directory of Open Access Journals (Sweden)

    Chun-Fen Liu

    2004-03-01

    Full Text Available The university archives is not only the extension of a building, but also includes the archival records, archivists and equipments. The university archives is the historical memory of a university, which could let people to predict the future by reviewing the past. The university archives has abundant collections, both teachers and students can review history of this university. This paper mainly compares six university archives of Taiwan, and the interviewing method is used in this research. After comparison of the six university archives, we have found the six university archives have different organizational structures, budgets, and functions. Finally the authors propose some suggestions.[Article content in Chinese

  9. Color preferences are not universal.

    Science.gov (United States)

    Taylor, Chloe; Clifford, Alexandra; Franklin, Anna

    2013-11-01

    Claims of universality pervade color preference research. It has been argued that there are universal preferences for some colors over others (e.g., Eysenck, 1941), universal sex differences (e.g., Hurlbert & Ling, 2007), and universal mechanisms or dimensions that govern these preferences (e.g., Palmer & Schloss, 2010). However, there have been surprisingly few cross-cultural investigations of color preference and none from nonindustrialized societies that are relatively free from the common influence of global consumer culture. Here, we compare the color preferences of British adults to those of Himba adults who belong to a nonindustrialized culture in rural Namibia. British and Himba color preferences are found to share few characteristics, and Himba color preferences display none of the so-called "universal" patterns or sex differences. Several significant predictors of color preference are identified, such as cone-contrast between stimulus and background (Hurlbert & Ling, 2007), the valence of color-associated objects (Palmer & Schloss, 2010), and the colorfulness of the color. However, the relationship of these predictors to color preference was strikingly different for the two cultures. No one model of color preference is able to account for both British and Himba color preferences. We suggest that not only do patterns of color preference vary across individuals and groups but the underlying mechanisms and dimensions of color preference vary as well. The findings have implications for broader debate on the extent to which our perception and experience of color is culturally relative or universally constrained. PsycINFO Database Record (c) 2013 APA, all rights reserved.

  10. Dark matter in the universe

    Science.gov (United States)

    Turner, Michael S.

    1991-01-01

    What is the quantity and composition of material in the Universe? This is one of the most fundamental questions we can ask about the Universe, and its answer bears on a number of important issues including the formation of structure in the Universe, and the ultimate fate and the earliest history of the Universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand. Most of the radiation in the Universe does not give off detectable radiation; it is dark. The dark matter associated with bright galaxies contributes somewhere between 10 and 30 percent of the critical density; baryonic matter contributes between 1.1 and 12 percent of the critical. The case for the spatially flat, Einstein-de Sitter model is supported by three compelling theoretical arguments - structure formation, the temporal Copernican principle, and inflation - and by some observational data. If Omega is indeed unity, or even just significantly greater than 0.1, then there is a strong case for a Universe comprised of nonbaryonic matter. There are three well motivated particle dark matter candidates: an axion of mass 10 (exp -6) eV to 10 (exp -4) eV; a neutrino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either planned or are underway.

  11. Dark matter in the universe

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S. (Fermi National Accelerator Lab., Batavia, IL (USA) Chicago Univ., IL (USA). Enrico Fermi Inst.)

    1990-11-01

    What is the quantity and composition of material in the Universe This is one of the most fundamental questions we can ask about the Universe, and its answer bears on a number of important issues including the formation of structure in the Universe, and the ultimate fate and the earliest history of the Universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: Most of the material in the Universe does not give off detectable radiation, i.e., is dark;'' the dark matter associated with bright galaxies contributes somewhere between 10% and 30% of the critical density (by comparison luminous matter contributes less than 1%); baryonic matter contributes between 1.1% and 12% of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments--structure formation, the temporal Copernican principle, and inflation--and by some observational data. If {Omega} is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a Universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10{sup {minus}6} eV to 10{sup {minus}4} eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway. 63 refs.

  12. Dark matter in the universe

    International Nuclear Information System (INIS)

    Turner, M.S.; Chicago Univ., IL

    1990-11-01

    What is the quantity and composition of material in the Universe? This is one of the most fundamental questions we can ask about the Universe, and its answer bears on a number of important issues including the formation of structure in the Universe, and the ultimate fate and the earliest history of the Universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: Most of the material in the Universe does not give off detectable radiation, i.e., is ''dark;'' the dark matter associated with bright galaxies contributes somewhere between 10% and 30% of the critical density (by comparison luminous matter contributes less than 1%); baryonic matter contributes between 1.1% and 12% of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments--structure formation, the temporal Copernican principle, and inflation--and by some observational data. If Ω is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a Universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10 -6 eV to 10 -4 eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway. 63 refs

  13. The Universe in a nutshell

    International Nuclear Information System (INIS)

    Hawking, S.

    2002-01-01

    In this new book Hawking takes us to the cutting edge of theoretical physics, where truth is often stranger than fiction, to explain in laymen's terms the principles that control our universe. Like many in the community of theoretical physicists, Professor Hawking is seeking to uncover the grail of science -- the elusive Theory of Everything that lies at the heart of the cosmos. In his accessible and often playful style, he guides us on his search to uncover the secrets of the universe -- from supergravity to supersymmetry, from quantum theory to M-theory, from holography to duality. He takes us to the wild frontiers of science, where superstring theory and p-branes may hold the final clue to the puzzle. And he lets us behind the scenes of one of his most exciting intellectual adventures as he seeks t o combine Einstein's General Theory of Relativity and Richard Feynman's idea of multiple histories into one complete unified theory that will describe everything that happens in the universe. 'With characteristic exuberance, Professor Hawking invites us to be fellow travelers on this extraordinary voyage through space-time'. Copious four-color illustrations help clarify this journey into a surreal wonderland where particles, sheets, and strings move in eleven dimensions; where black holes evaporate and disappear, taking their secret with them; and where the original cosmic seed from which our own universe sprang was a tiny nut. The Universe in a Nutshell is essential reading for all of us who want to understand the universe in which we live

  14. Dark matter in the Universe

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S. (Fermi National Accelerator Lab., Batavia, IL (USA) Chicago Univ., IL (USA). Enrico Fermi Inst.)

    1991-03-01

    What is the quantity and composition of material in the universe This is one of the most fundamental questions we can ask about the universe, and its answer bears on a number of important issues including the formation of structure in the universe, and the ultimate fate and the earliest history of the universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: most of the material in the universe does not give off detectable radiation, i.e., is dark;'' the dark matter associated with bright galaxies contributes somewhere between 10% and 30% of the critical density (by comparison luminous matter contributes less than 1%); baryonic matter contributes between 1.1% and 12% of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments -- structure formation, the temporal Copernican principle, and inflation -- and by some observational data. If {Omega} is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10{sup {minus}6} eV to 10{sup {minus}4} eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway. 71 refs., 6 figs.

  15. Universe Awareness For Young Children

    Science.gov (United States)

    Scorza, C.; Miley, G.; Ödman, C.; Madsen, C.

    2006-08-01

    Universe Awareness (UNAWE) is an international programme that will expose economically disadvantaged young children aged between 4 and 10 years to the inspirational aspects of modern astronomy. The programme is motivated by the premise that access to simple knowledge about the Universe is a basic birth right of everybody. These formative ages are crucial in the development of a human value system. This is also the age range in which children can learn to develop a 'feeling' for the vastness of the Universe. Exposing young children to such material is likely to broaden their minds and stimulate their world-view. The goals of Universe Awareness are in accordance with two of the United Nations Millennium goals, endorsed by all 191 UN member states, namely (i) the achievement of universal primary education and (ii) the promotion of gender equality in schools. We propose to commence Universe Awareness with a pilot project that will target disadvantaged regions in about 4 European countries (possibly Spain, France, Germany and The Netherlands) and several non-EU countries (possibly Chile, Colombia, India, Tunisia, South Africa and Venezuela). There will be two distinct elements in the development of the UNAWE program: (i) Creation and production of suitable UNAWE material and delivery techniques, (ii) Training of educators who will coordinate UNAWE in each of the target countries. In addition to the programme, an international network of astronomy outreach will be organised. We present the first results of a pilot project developed in Venezuela, where 670 children from different social environments, their teachers and members of an indigenous tribe called Ye´kuana from the Amazon region took part in a wonderful astronomical and cultural exchange that is now being promoted by the Venezuelan ministry of Education at the national level.

  16. Dark matter in the universe

    International Nuclear Information System (INIS)

    Bahcall, J.; Piran, T.; Weinberg, S.

    1988-01-01

    If standard gravitational theory is correct, then most of the matter in the universe is in an unidentified form which does not emit enough light to have been detected by current instrumentation. This proceedings was devoted to a discussion of the so-called ''missing matter'' problem in the universe. The goal of the School was to make current research work on unseen matter accessible to students or facilities without prior experience in this area. Due to the pedagogical nature of the School and the strong interactions between students and the lecturers, the written lectures included in this volume often contain techniques and explanations not found in more formal journal publications

  17. Challenges for current University management

    Directory of Open Access Journals (Sweden)

    Pedro Rodríguez Vargas

    2016-03-01

    Full Text Available The Ecuadorian university through a change of era, this complex pathway mediated by globalization imposes imminently. The aim of this paper is to present a review of literature on the main aspects of management that are generated for the interaction University - context. This scan was performed on secondary sources, and grounded in scienti?c data abstraction. College education is an information and training process that allows the scientific, technological, economic, political, social and cultural development of a region or country; however, some phenomena such as globalization, technological revolution or multiculturalism are key to this, same that can be considered as a problem or a challenge.

  18. Automated Podcasting System for Universities

    Directory of Open Access Journals (Sweden)

    Ypatios Grigoriadis

    2013-03-01

    Full Text Available This paper presents the results achieved at Graz University of Technology (TU Graz in the field of automating the process of recording and publishing university lectures in a very new way. It outlines cornerstones of the development and integration of an automated recording system such as the lecture hall setup, the recording hardware and software architecture as well as the development of a text-based search for the final product by method of indexing video podcasts. Furthermore, the paper takes a look at didactical aspects, evaluations done in this context and future outlook.

  19. Universal asymptotics in hyperbolicity breakdown

    International Nuclear Information System (INIS)

    Bjerklöv, Kristian; Saprykina, Maria

    2008-01-01

    We study a scenario for the disappearance of hyperbolicity of invariant tori in a class of quasi-periodic systems. In this scenario, the system loses hyperbolicity because two invariant directions come close to each other, losing their regularity. In a recent paper, based on numerical results, Haro and de la Llave (2006 Chaos 16 013120) discovered a quantitative universality in this scenario, namely, that the minimal angle between the two invariant directions has a power law dependence on the parameters and the exponents of the power law are universal. We present an analytic proof of this result

  20. Interpreting the universal phylogenetic tree

    Science.gov (United States)

    Woese, C. R.

    2000-01-01

    The universal phylogenetic tree not only spans all extant life, but its root and earliest branchings represent stages in the evolutionary process before modern cell types had come into being. The evolution of the cell is an interplay between vertically derived and horizontally acquired variation. Primitive cellular entities were necessarily simpler and more modular in design than are modern cells. Consequently, horizontal gene transfer early on was pervasive, dominating the evolutionary dynamic. The root of the universal phylogenetic tree represents the first stage in cellular evolution when the evolving cell became sufficiently integrated and stable to the erosive effects of horizontal gene transfer that true organismal lineages could exist.

  1. An Einstein-Goedel universe

    International Nuclear Information System (INIS)

    Vaidya, P.C.

    1978-01-01

    The metric for the standard static Einstein model of the universe can be expressed in coordinates for which a congruence of spacelike world lines of the model will be twisting. A method of 'shifting the twist' has been devised by which the twist on spacelike world lines is shifted onto the timelike world lines. The model universe then becomes Goedel's model. A combined Einstein-Goedel model containing a parameter epsilon is obtained. Switching epsilon from +1 to -1 will effect the shift of twist in the world lines and lead from the Einstein model to the Goedel model. (author)

  2. The unity of the Universe

    CERN Document Server

    Sciama, D W

    2009-01-01

    Does the universe consist of independent objects, or is it a single unit? Are some of its features accidental, or can they all be explained in theoretical terms? This accessible book on cosmology addresses profound questions about the universe, and it offers elegant answers in simple, straightforward terms. Written by a distinguished cosmologist, it assumes no knowledge of physics or astronomy and illustrates its explanations with figures and compelling photos. The first part ventures back to the early Greek astronomers, who were the first to measure the Earth's size and the distance to the su

  3. How Isotropic is the Universe?

    Science.gov (United States)

    Saadeh, Daniela; Feeney, Stephen M; Pontzen, Andrew; Peiris, Hiranya V; McEwen, Jason D

    2016-09-23

    A fundamental assumption in the standard model of cosmology is that the Universe is isotropic on large scales. Breaking this assumption leads to a set of solutions to Einstein's field equations, known as Bianchi cosmologies, only a subset of which have ever been tested against data. For the first time, we consider all degrees of freedom in these solutions to conduct a general test of isotropy using cosmic microwave background temperature and polarization data from Planck. For the vector mode (associated with vorticity), we obtain a limit on the anisotropic expansion of (σ_{V}/H)_{0}Universe is strongly disfavored, with odds of 121 000:1 against.

  4. The crisis and the university

    OpenAIRE

    Camargo Jr., Kenneth Rochel de

    2017-01-01

    The public university has encountered more and more fiance restrictions in Brazil, evidenced sharply at the Universidade do Estado do Rio de Janeiro (Rio de Janeiro State University). Naive analyses consider as an inevitable phenomenon what is in fact the consequence of inadequate polictics and of an ideology defending a mutilated state which consequently does not compromise with higher education. The lack of attention to real determinants and to the sense of the “crisis” produces a prolifera...

  5. The Columbia University Management Program.

    Science.gov (United States)

    Yavarkovsky, Jerome; Haas, Warren J.

    In 1971, a management consulting firm undertook a case study of the Columbia University libraries to improve library performance by reviewing and strengthening the organization and recasting staff composition and deployment patterns. To implement the study's recommendations, an administrative structure was proposed which would emphasize functional…

  6. Kuues "Diverse. Universe" / Sandra Jõgeva

    Index Scriptorium Estoniae

    Jõgeva, Sandra, 1976-

    2010-01-01

    Non Grata korraldatud rahvusvaheline performance'i-kunsti festival "Diverse Universe 2010" Pärnu Kunstihallis ja Pärnu Kunstnike Majas 23. ja 24. aprillil. Rühmituste Juurikasvu (Soome), Cnopt (Eesti), Rubensid (Eesti), Ornicart (Prantsusmaa), Zane Matule ja Gatis Vectirānsi (Läti) jt. performance'itest

  7. Status of Japanese university reactors

    International Nuclear Information System (INIS)

    Fujita, Yoshiaki

    1999-01-01

    Status of Japanese university reactors, their role and value in research and education, and the spent fuel problem are presented. Some of the reactors are now faced by severe difficulties in continuing their operation services. The point of measures to solve the difficulties is suggested. (author)

  8. Has the universe an origin?

    International Nuclear Information System (INIS)

    Alfven, H.

    1988-07-01

    In the cosmological discussion it has during the last few decades been taken for granted that the Lemaitre-Gamov cosmology - usually referred to as the Big Band is the only acceptable one. The Universe must have been created ex nihilo in a singular point. Criticism of the Big Bang hypothesis is usually answered by: And how do you create the Universe? Most people seem to be so ignorant of the history of science and philosophy that they do not remember that most scolars have considered the Universe to be 'ungenerated and indestructable'. The only exceptions seem to be some Christian theologicans in the first centuries AD and their school, to which Lemaitre and Gamov and their Big Bang hypothesis belongs. It is demonstrated that there are no observational facts which unquestionable speak in favour of the Big Bang hypothesis. The 'Sputnik revolution' makes it necessary to revise important parts of astrophysics, and is also fatal to the Big Bang. It seems necessary to turn back to the view of an 'ungenerated' (and indestructable) Universe. (author)

  9. Information Systems for University Planning.

    Science.gov (United States)

    Robinson, Robert J.

    This paper proposes construction of a separate data base environment for university planning information, distinct from data bases and systems supporting operational functioning and management. The data base would receive some of its input from the management information systems (MIS)/transactional data bases and systems through a process of…

  10. The Promise of a University.

    Science.gov (United States)

    Cousins, Norman

    1979-01-01

    The function of the university is shown to be not only to train people but to educate them. The importance of creativity, longevity, and humor are discussed. Short conversations with Charles A. Beard, Albert Schweitzer, Nehru, and Krushchev reveal the essence of "What I've Learned." (MLW)

  11. University Festival Promotes STEM Education

    Science.gov (United States)

    Quagliata, Andrew B.

    2015-01-01

    STEM education is argued as an essential ingredient in preparing our children for careers of the future. This study describes a university festival that includes the promotion of STEM-related career interests in young people among its goals. A total of 203 participants between the age of 7 and 17 completed both pre-event and post-event surveys. In…

  12. Ambiguity aversion is not universal

    NARCIS (Netherlands)

    Kocher, M.G.; Lahno, Amrei; Trautmann, Stefan

    Assuming universal ambiguity aversion, an extensive theoretical literature studies how ambiguity can account for market anomalies from the perspective of expected utility-based theories. We provide a systematic experimental assessment of ambiguity attitudes in different likelihood ranges, and in the

  13. Information Retrieval in Virtual Universities

    Science.gov (United States)

    Puustjärvi, Juha; Pöyry, Päivi

    2006-01-01

    Information retrieval in the context of virtual universities deals with the representation, organization, and access to learning objects. The representation and organization of learning objects should provide the learner with an easy access to the learning objects. In this article, we give an overview of the ONES system, and analyze the relevance…

  14. Geodesic in Godel type universes

    International Nuclear Information System (INIS)

    Galvao, M.O.

    1985-01-01

    We find out the timelike and null geodesics of a certain family of Goedel-like universes, carrying out, at first, a qualitative analysis through the method of the effective potential and, subsequently, proceeding to the exact integration of the equations of motion. (author) [pt

  15. enhancing employability through university education

    African Journals Online (AJOL)

    PROF EKWUEME

    engineered to achieve these skills for the benefit of our students and society at large through the role of. National ... S. O. Onyeagbako, Department of Life Science Education, Faculty of Education, Imo State University, ... examination malpractice and unmotivated work ..... functions are met, NUC should ensure an orderly.

  16. Galaxies in the Early Universe

    DEFF Research Database (Denmark)

    Krogager, Jens-Kristian

    Understanding how galaxies evolved from the early Universe through cosmic time is a fundamental part of modern astrophysics. In order to study this evolution it is important to sample the galaxies at various times in a consistent way through time. In regular luminosity selected samples, our...

  17. Black Holes in Our Universe

    Indian Academy of Sciences (India)

    are humanity's high-technology windows onto the universe. For reasons that will ... instrument ever built; and it was the first direct ... gravity will drive it to collapse into a black hole. Indeed, in 2007, ... Given their large X-ray power, it has been ...

  18. University of Maryland MRSEC - Leadership

    Science.gov (United States)

    . University of Maryland Materials Research Science and Engineering Center Home About Us Leadership MRSEC Templates Opportunities Search Home » About Us » Leadership Leadership Reutt-Robey photo Janice from the College of Arts and Humanities at UMD. Historical Leadership Ellen Williams MRSEC Director

  19. Parsing Universal Dependencies without training

    NARCIS (Netherlands)

    Martínez Alonso, Héctor; Agić, Željko; Plank, Barbara; Søgaard, Anders

    2017-01-01

    We propose UDP, the first training-free parser for Universal Dependencies (UD). Our algorithm is based on PageRank and a small set of head attachment rules. It features two-step decoding to guarantee that function words are attached as leaf nodes. The parser requires no training, and it is

  20. Stephen Hawking's Universe. Teacher's Guide.

    Science.gov (United States)

    Thompson, Malcolm H.; Rameau, Jonathan D.

    This program guide is meant to help teachers assist their students in viewing the six-part public television series, "Stephen Hawking's Universe." The guide features program summaries that give background information and brief synopses of the programs; previewing activities that familiarize students with the subject; vocabulary that…

  1. TUMULT, the Twente University multiprocessor

    NARCIS (Netherlands)

    Scholten, Johan; Jansen, P.G.

    1988-01-01

    TUMULT, (Twente University multiprocessor) is described. Its aim is the design and implementation of a modular extendable multiprocessor system. Up to 15 processing elements are connected through an interprocessor communication network, using message-passing for the exchange of data. The hardware is

  2. PHARUS : PHased ARray Universal SAR

    NARCIS (Netherlands)

    Paquay, M.H.A.; Vermeulen, B.C.B.; Koomen, P.J.; Hoogeboom, P.; Snoeij, P.; Pouwels, H.

    1996-01-01

    In the Netherlands, a polarimetric C-band aircraft SAR (Synthetic Aperture Radar) has been developed. The project is called PHARUS, an acronm for PHased ARray Universal SAR. This instrument serves remote sensing applications. The antenna system contains 48 active modules (expandable to 96). A module

  3. Physics of the early universe

    International Nuclear Information System (INIS)

    Klinkhamer, F.R.

    1983-01-01

    In this thesis, the author has assembled his papers on elementary particle physics which are of importance for studying cosmology viz. the physics of the early universe. A rather detailed introduction reviewing basic principles and current trends in the relation particle physics/cosmology precedes the papers. (Auth.)

  4. Universal features of multiplicity distributions

    International Nuclear Information System (INIS)

    Balantekin, A.B.; Washington Univ., Seattle, WA

    1994-01-01

    Universal features of multiplicity distributions are studied and combinants, certain linear combinations of ratios of probabilities, are introduced. It is argued that they can be a useful tool in analyzing multiplicity distributions of hadrons emitted in high energy collisions and large scale structure of galaxy distributions

  5. Quantum cosmology and baby universes

    International Nuclear Information System (INIS)

    Grishchuk, L.P.

    1990-01-01

    The contributed papers presented to the workshop on ''Quantum Cosmology and Baby Universes'' have demonstrated the great interest in, and rapid development of, the field of quantum cosmology. In my view, there are at least three areas of active research at present. The first area can be defined as that of practical calculations. Here researchers are dealing with the basic quantum cosmological equation, which is the Wheeler-DeWitt equation. They try to classify all possible solutions to the Wheeler-DeWitt equation or seek a specific integration contour in order to select one particular wave function or generalize the simple minisuperspace models to more complicated cases, including various inhomogeneities, anisotropies, etc. The second area of research deals with the interpretational issues of quantum cosmology. There are still many questions about how to extract the observational consequences from a given cosmological wave function, the role of time in quantum cosmology, and how to reformulate the rules of quantum mechanics in such a way that they could be applicable to the single system which is our Universe. The third area of research is concerned with the so-called ''third quantization'' of gravity. In this approach a wave function satisfying the Wheeler-DeWitt equation becomes an operator acting on a Wave Function of the many-universes system. Within this approach one operates with Euclidean worm-holes joining different Lorentzian universes. (author)

  6. University of Maryland MRSEC - Education

    Science.gov (United States)

    Educational Education Pre-College Programs Homeschool Programs Undergraduate & Graduate Programs Teacher MRSEC Templates Opportunities Search Home » Education Education Outreach University of Maryland MRSEC : Championing Service-based Education Outreach Since 1996 Program Areas Pre-college Programs Project Lead the

  7. The Music of the Universe

    CERN Multimedia

    2004-01-01

    A recent analysis, in part by theorists working at CERN, suggests a new view of the cosmic microwave background radiation. It seems the solar system, rather than the universe, causes the radiation's large-scale fluctuations, similar to the bass in a song.

  8. Entrepreneurship Education in Malaysian Universities

    Science.gov (United States)

    Ahmad, Syed Zamberi; Buchanan, Robert Frederick

    2015-01-01

    Entrepreneurship education in the strongly emerging market of Malaysia was examined throughout the country's 20 public universities. A broad based interview process amongst multiple stakeholders profiled educational policies as well as revealing shortcomings in practice. Observers noted that students showed a preference for salaried jobs after…

  9. Who Leads China's Leading Universities?

    Science.gov (United States)

    Huang, Futao

    2017-01-01

    This study attempts to identify the major characteristics of two different groups of institutional leaders in China's leading universities. The study begins with a review of relevant literature and theory. Then, there is a brief introduction to the selection of party secretaries, deputy secretaries, presidents and vice presidents in leading…

  10. Iraqi Universities Reach a Crossroads

    Science.gov (United States)

    Lindsey, Ursula

    2012-01-01

    Eight years after the U.S. invasion of Iraq and a few months after the withdrawal of the military forces from the country, Iraq's universities, devastated by years of dictatorship, sanctions, and war, are still struggling to recover. The security situation has improved since the deadly, dark days of 2006 and 2007, when the country teetered on the…

  11. Leading Organizations for Universal Design

    Science.gov (United States)

    Berger, Joseph B.; Van Thanh, Duong

    2004-01-01

    The purpose of this article is to provide a model for helping campus leaders create and sustain efforts to fully incorporate Universal Instructional Design (UID) throughout their institutions. The article uses a multiple dimension model of organizational behavior as the basis for making recommendations to support this type of institutional…

  12. The Funding of Virtual Universities

    Science.gov (United States)

    Poulin, Russell; Michelau, Demaree K.

    2009-01-01

    This article reviews categorization models and the outcomes of a virtual university funding survey. Although categorization of types of funding mechanisms is a necessary analytical tool, it often hides the many and varied political decisions that created them. In commenting on the implications of the type of funding model, political forces behind…

  13. Welcome to The Okayama University

    International Nuclear Information System (INIS)

    Inaba, Hideo

    2006-01-01

    On helalf of The Okayama University, we are very happy to host the Fourth International Workshop on Neutrino-Nucleus Interactions In the Few-GeV Region (NuInt05), and we would like to address a hearty welcome to all participants who have come from all over the world to discuss about 'Neutrinos'

  14. Universal signatures of quantum chaos

    International Nuclear Information System (INIS)

    Aurich, R.; Bolte, J.; Steiner, F.

    1994-02-01

    We discuss fingerprints of classical chaos in spectra of the corresponding bound quantum systems. A novel quantity to measure quantum chaos in spectra is proposed and a conjecture about its universal statistical behaviour is put forward. Numerical as well as theoretical evidence is provided in favour of the conjecture. (orig.)

  15. The Nature of the University

    Science.gov (United States)

    Lenartowicz, Marta

    2015-01-01

    Higher education research frequently refers to the complex external conditions that give our old-fashioned universities a good reason to change. The underlying theoretical assumption of such framing is that organizations are open systems. This paper presents an alternative view, derived from the theory of social systems autopoiesis. It proposes…

  16. Universities' perspectives on community engagement

    NARCIS (Netherlands)

    Benneworth, Paul Stephen; Humphrey, L.; Benneworth, P.

    2012-01-01

    This chapter makes the argument that despite the fact that utility has always been important to why universities exist, engaging with communities has been framed in ways that reinforce its perception as a transient, peripheral and even undesirable activity. The chapter begins by noting the way that

  17. The migration of university graduates

    DEFF Research Database (Denmark)

    Drejer, Ina; Holm, Jacob Rubæk; Nielsen, Kristian

    Several studies have documented that highly educated citizens contribute to regional economic performance (Moretti, 2013; Faggian and McCann,2009b; Sterlacchini 2008). Moreover, Åstebro et al. (2012) emphasize the importance of promoting start-up by recent university graduates. Thus, the retentio...

  18. DOE/university reactor sharing

    International Nuclear Information System (INIS)

    Young, H.H.

    1985-01-01

    The objective of the US Department of Energy's program of reactor sharing is to strengthen nuclear science and engineering instruction and nuclear research opportunities in non-reactor-owning colleges and universities. The benefits of the program and need for the continuation of the program in the future are discussed

  19. Intelligence Studies, Universities and Security

    Science.gov (United States)

    Glees, Anthony

    2015-01-01

    This article offers a critical assessment of academic intelligence studies in higher education. It argues that universities (and academics) should value this subject far more highly than they currently do. Doing so will enhance better public understanding of an increasingly important and unique device in modern governance. It will also improve the…

  20. Kant's universal law formula revisited

    NARCIS (Netherlands)

    Nyholm, S.

    2015-01-01

    Kantians are increasingly deserting the universal law formula in favor of the humanity formula. The former, they argue, is open to various decisive objections; the two are not equivalent; and it is only by appealing to the human- ity formula that Kant can reliably generate substantive implications