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Sample records for cgs nai systems

  1. Area Specific Stripping of lower energy windows for AGS and CGS NaI systems

    DEFF Research Database (Denmark)

    Korsbech, Uffe C C; Aage, Helle Karina; Byström, Sören;

    By the Area Specific Stripping (ASS) method for NaI gamma detectors it is possible in a simple way obtain the parameters (stripping factors) that are needed for being able to discern between natural radioactivity signals and signals from manmade radioactivity and radiation anomalies in general...... in different environments. 2. Another goal of the project has been to investigate why (earlier) one sometimes got oddly-looking ASS parameters that worked correctly when seen from a mathematical point of view but seemingly had no physical meaning. 3. It was also a goal that the successful parts of the ASS...

  2. Area specific stripping of lower energy windows for AGS and CGS NaI systems[Airborne Gamma Spectrometry; Carbone Gamma Spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Korsbech, U.; Aage, H.K. [Technical Univ. of Denmark (Denmark); Bystroem, S.; Wedmark, M. [Geological Survey of Sweden (Sweden); Thorshaug, S. [Norwegian Radiation Protection Agency (Norway); Bargholz, K. [Danish Emergency Management Agency (Denmark)

    2005-05-01

    The report describes the results from a NKS (Nordic Nuclear Safety Research) project aiming at examining the possibilities for extracting stripping factors for Airborne Gamma-ray Spectrometry (AGS) data and Carborne Gamma-ray Spectrometry (CGS) data directly from the recorded set of data, i.e. without having to calibrate the detector systems on beforehand. The project 'NKS project ASSb' has been carried out between 1 August 2004 and 31 March 2005 by a research group composed of persons from Technical University of Denmark (DTU), Danish Emergency Management Agency (DEMA), Geological Survey of Sweden (SGU), and Norwegian Radiation Protection Authority (NRPA). The AGS and CGS data sets used for the project were recorded by SGU, DEMA, NGU (Geological Survey of Norway), and SSI (Swedish Radiation Protection Institute). Most of the project effort has been directed towards analysing AGS and CGS data with point source signals recorded at the Barents Rescue 2001 LIVEX exercise at Boden in Sweden. Possibilities and limitations for the method have been identified. (au)

  3. Managed and Supported Missions in the Joint Polar Satellite System (JPSS) Common Ground System (CGS)

    Science.gov (United States)

    Jamilkowski, M. L.; Grant, K. D.; Miller, S. W.; Cochran, S.

    2015-12-01

    NOAA & NASA are acquiring the next-generation civilian operational weather satellite: Joint Polar Satellite System (JPSS). Replacing the p.m. orbit & ground system (GS) of POES satellites, JPSS sensors will collect weather, ocean & climate data. JPSS's Common Ground System (CGS), made up of C3 & IDP parts and developed by Raytheon, now flies the Suomi National Polar-orbiting Partnership (S-NPP) satellite, transfers data between ground facilities, processes them into Environmental Data Records for NOAA's weather centers and evolves to support JPSS-1 in 2017. CGS processed S-NPP data creates many TBs/day across >2 dozen environmental data products (EDPs), doubling after JPSS launch. But CGS goes beyond this by providing data routing to other missions: GCOM-W1, Coriolis/Windsat, EOS, NSF's McMurdo Station, Defense Meteorological Satellite Program, and POES & MetOp satellites. Each system orbits 14 times/day, downlinking data 1-2 times/orbit at up to 100s of MBs/sec, to support the creation of 10s of TBs of data/day across 100s of EDPs. CGS's flexible, multimission capabilities offer major chances for cost reduction & improved information integration across the missions. CGS gives a vital flexible-expandable-virtualized modern GS architecture. Using 5 global ground stations to receive S-NPP & JPSS-1 data, CGS links with high-bandwidth commercial fiber to rapidly move data to the IDP for EDP creation & delivery and leverages these networks to provide added support to more missions. CGS data latency will be systems and meets tough science accuracy needs. The Raytheon-built CGS gives the full GS capability, from design & development through operations & sustainment, facilitating future evolution to support more missions.

  4. Joint Polar Satellite System (JPSS) Common Ground System (CGS) Current Technical Performance Measures

    Science.gov (United States)

    Cochran, S.; Panas, M.; Jamilkowski, M. L.; Miller, S. W.

    2015-12-01

    ABSTRACT The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). The Joint Polar Satellite System will replace the afternoon orbit component and ground processing system of the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and geophysical observations of the Earth. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS). Developed and maintained by Raytheon Intelligence, Information and Services (IIS), the CGS is a multi-mission enterprise system serving NOAA, NASA and their national and international partners. The CGS has demonstrated its scalability and flexibility to incorporate multiple missions efficiently and with minimal cost, schedule and risk, while strengthening global partnerships in weather and environmental monitoring. The CGS architecture is being upgraded to Block 2.0 in 2015 to "operationalize" S-NPP, leverage lessons learned to date in multi-mission support, take advantage of more reliable and efficient technologies, and satisfy new requirements and constraints in the continually evolving budgetary environment. To ensure the CGS meets these needs, we have developed 49 Technical Performance Measures (TPMs) across 10 categories, such as data latency, operational availability and scalability. This paper will provide an overview of the CGS Block 2.0 architecture, with particular focus on the 10 TPM categories listed above. We will provide updates on how we ensure the deployed architecture meets these TPMs to satisfy our multi-mission objectives with the deployment of Block 2.0.

  5. Joint Polar Satellite System (JPSS) Common Ground System (CGS) Block 3.0 Communications Strategies

    Science.gov (United States)

    Miller, S. W.; Grant, K. D.; Ottinger, K.

    2015-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). The JPSS program is the follow-on for both space and ground systems to the Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and geophysical observations of the Earth. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS). Developed and maintained by Raytheon Intelligence, Information and Services (IIS), the CGS is a globally distributed, multi-mission system serving NOAA, NASA and their national and international partners. The CGS has demonstrated its scalability and flexibility to incorporate multiple missions efficiently and with minimal cost, schedule and risk, while strengthening global partnerships in weather and environmental monitoring. In a highly successful international partnership between NOAA and the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), the CGS currently provides data routing from McMurdo Station in Antarctica to the EUMETSAT processing center in Darmstadt, Germany. Continuing and building upon that partnership, NOAA and EUMETSAT are collaborating on the development of a new path forward for the 2020's. One approach being explored is a concept of operations where each organization shares satellite downlink resources with the other. This paper will describe that approach, as well as modeling results that demonstrate its feasibility and expected performance.

  6. Joint Polar Satellite System (JPSS) Common Ground System (CGS) Architecture Overview and Technical Performance Measures

    Science.gov (United States)

    Grant, K. D.; Johnson, B. R.; Miller, S. W.; Jamilkowski, M. L.

    2014-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). The Joint Polar Satellite System will replace the afternoon orbit component and ground processing system of the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and geophysical observations of the Earth. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS). Developed and maintained by Raytheon Intelligence, Information and Services (IIS), the CGS is a multi-mission enterprise system serving NOAA, NASA and their national and international partners. The CGS provides a wide range of support to a number of missions. Originally designed to support S-NPP and JPSS, the CGS has demonstrated its scalability and flexibility to incorporate all of these other important missions efficiently and with minimal cost, schedule and risk, while strengthening global partnerships in weather and environmental monitoring. The CGS architecture will be upgraded to Block 2.0 in 2015 to satisfy several key objectives, including: "operationalizing" S-NPP, which had originally been intended as a risk reduction mission; leveraging lessons learned to date in multi-mission support; taking advantage of newer, more reliable and efficient technologies; and satisfying new requirements and constraints due to the continually evolving budgetary environment. To ensure the CGS meets these needs, we have developed 48 Technical Performance Measures (TPMs) across 9 categories: Data Availability, Data Latency, Operational Availability, Margin, Scalability, Situational Awareness, Transition (between environments and sites), WAN Efficiency, and Data Recovery Processing. This

  7. Joint Polar Satellite System (JPSS) Common Ground System (CGS) Overview and Architectural Tenets

    Science.gov (United States)

    Miller, S. W.; Grant, K. D.; Jamilkowski, M. L.

    2013-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). The Joint Polar Satellite System will replace the afternoon orbit component and ground processing system of the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and geophysical observations of the Earth. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS). Developed and maintained by Raytheon Intelligence and Information Systems (IIS), the CGS is a multi-mission enterprise system serving NOAA, NASA and their national and international partners. The CGS provides a wide range of support to a number of missions: 1) Command and control and mission management for the Suomi National Polar Partnership (S-NPP) mission today, expanding this support to the JPSS-1 satellite and the Polar Free Flyer mission in 2017 2) Data acquisition via a Polar Receptor Network (PRN) for S-NPP, the Japan Aerospace Exploration Agency's (JAXA) Global Change Observation Mission - Water (GCOM-W1), POES, and the Defense Meteorological Satellite Program (DMSP) and Coriolis/WindSat for the Department of Defense (DoD) 3) Data routing over a global fiber Wide Area Network (WAN) for S-NPP, JPSS-1, Polar Free Flyer, GCOM-W1, POES, DMSP, Coriolis/WindSat, the NASA Space Communications and Navigation (SCaN, which includes several Earth Observing System [EOS] missions), MetOp for the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), and the National Science Foundation (NSF) 4) Environmental data processing and distribution for S-NPP, GCOM-W1 and JPSS-1 The CGS architecture will receive a technology refresh in 2015 to satisfy several key

  8. First Detection of NaI D lines in High-Redshift Damped Lyman-alpha Systems

    CERN Document Server

    Kondo, S; Gässler, W; Hayano, Y; Iye, M; Kamata, Y; Kanzawa, T; Kobayashi, N; Minowa, Y; Nedachi, K; Oya, S; Pyo, T S; Saint-Jacques, D; Takami, H; Takato, N; Terada, H; Tokunaga, A; Tsujimoto, T; Churchill, Christopher W.; Gaessler, Wolfgang; Hayano, Yutaka; Iye, Masanori; Kamata, Yukiko; Kanzawa, Tomio; Kobayashi, Naoto; Kondo, Sohei; Minowa, Yosuke; Nedachi, Ko; Oya, Shin; Pyo, Tae-Soo; Takami, Hideki; Takato, Naruhisa; Terada, Hiroshi; Tokunaga, Alan; Tsujimoto, Takuji

    2006-01-01

    A Near-infrared (1.18-1.35 micron) high-resolution spectrum of the gravitationally-lensed QSO APM 08279+5255 was obtained with the IRCS mounted on the Subaru Telescope using the AO system. We detected strong NaI D 5891,5897 doublet absorption in high-redshift DLAs at z=1.062 and 1.181, confirming the presence of NaI, which was first reported for the rest-frame UV NaI 3303.3,3303.9 doublet by Petitjean et al. This is the first detection of NaI D absorption in a high-redshift (z>1) DLA. In addition, we detected a new NaI component in the z=1.062 DLA and four new components in the z=1.181 DLA. Using an empirical relationship between NaI and HI column density, we found that all "components" have large HI column density, so that each component is classified as DLA absorption. We also detected strong NaI D absorption associated with a MgII system at z=1.173. Because no other metal absorption lines were detected in this system at the velocity of the NaI absorption in previously reported optical spectra (observed 3.6...

  9. JPSS CGS Evolution

    Science.gov (United States)

    Miller, S. W.; Grant, K. D.; Jamilkowski, M. L.

    2012-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). JPSS will contribute the afternoon orbit component and ground processing system. As such, the Joint Polar Satellite System replaces the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. It also replaces the ground processing component of both Polar-orbiting Operational Environmental Satellites, as well as components of the Defense Meteorological Satellite Program (DMSP) replacement, previously known as the Defense Weather Satellite System (DWSS), managed by the Department of Defense (DoD). The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and solar-geophysical observations of the earth, atmosphere and space. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS), which consists of a Command, Control and Communications Segment (C3S) and an Interface Data Processing Segment (IDPS). Both segments are developed by Raytheon Intelligence and Information Systems (IIS). The C3S is currently flying the Suomi National Polar Partnership (Suomi NPP) satellite and transfers mission data from Suomi NPP and between the ground facilities. The IDPS processes Suomi NPP satellite data to provide Environmental Data Records (EDRs) to NOAA and DoD processing centers operated by the United States government. When the JPSS-1 satellite is launched in early 2017, the responsibilities of the C3S and the IDPS will be expanded to support both Suomi NPP and JPSS-1. The CGS also employs its ground stations at Svalbard, Norway and McMurdo Station, Antarctica, along with a global fiber communications network, to provide data acquisition and routing for multiple additional missions. These include POES, DMSP, NASA

  10. Theoretical Studies on Formation Mechanism of Resonance States for Na+I2→Na++I-2 System

    Institute of Scientific and Technical Information of China (English)

    SUN Xiao-min; MA Wan-yong; CAI Zheng-ting; FENG Da-cheng

    2003-01-01

    An extended linear combination of arrangement channels-scattering wave-function(LCAC-SW) quantum scattering dynamic method combined with ab initio quantum chemical calculation was used to study the formation mechanism of the resonance states for the collinear Na+I2→Na++I-2 ion-pair formation process on Aten-Lanting-Los potential energy surface. The resonance energy and the resonance width or the lifetime for the first resonance peak were calculated. The resonance can be identified as the Feshbach type and the physical interpretation is given. The geometric structure of the resonance state for the title system has been optimized.

  11. Influence of Water Temperature and Salinity on PH During Dry Season in Lower Dong Nai River System, Vietnam

    Directory of Open Access Journals (Sweden)

    Dung Dang Quoc

    2015-12-01

    Full Text Available This paper uses the gvSIG 2.2.0 software, IDW interpolation method, river and stream network data, and 36 sampling sites to build the maps of three monitored parameters such as pH, water temperature, and salinity in the Lower Dong Nai River system (2009-2010 in dry season. Based on an analysis of these maps and statistical assessment by using the R software, the correlations between pH, temperature, and salinity are clarified. The results show that the pH and temperature values have a tendency to decrease, whereas the salinity tends to increase annually. The pH value has good and significant correlations with the water temperature and salinity in both simple and multiple linear regression models. The results aim to provide a scientific reference for further research on the water environment in this area.

  12. Systemic administration of the adenosine A2A agonist CGS 21680 induces sedation at doses that suppress lever pressing and food intake

    OpenAIRE

    Mingote, Susana; Pereira, Mariana; Farrar, Andrew M.; McLaughlin, Peter J.; Salamone, John D.

    2008-01-01

    Adenosine A2A receptors are involved in the regulation of several behavioral functions. Adenosine A2A antagonists exert antiparkinsonian effects in animal models, and adenosine A2A agonists suppress locomotion and impair various aspects of motor control. The present experiments were conducted to study the effects of low doses of the adenosine A2A agonist CGS 21680 on lever pressing, specific parameters of food intake, and sedation. In the first experiment, the effects of CGS 21680 on fixed ra...

  13. JPSS CGS Tools For Rapid Algorithm Updates

    Science.gov (United States)

    Smith, D. C.; Grant, K. D.

    2011-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). JPSS will contribute the afternoon orbit component and ground processing system of the restructured National Polar-orbiting Operational Environmental Satellite System (NPOESS). As such, JPSS replaces the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA and the ground processing component of both POES and the Defense Meteorological Satellite Program (DMSP) replacement known as the Defense Weather Satellite System (DWSS), managed by the Department of Defense (DoD). The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological, and solar-geophysical observations of the earth, atmosphere, and space. The ground processing system for JPSS is known as the JPSS Common Ground System (JPSS CGS), and consists of a Command, Control, and Communications Segment (C3S) and the Interface Data Processing Segment (IDPS). Both are developed by Raytheon Intelligence and Information Systems (IIS). The Interface Data Processing Segment will process NPOESS Preparatory Project, Joint Polar Satellite System and Defense Weather Satellite System satellite data to provide environmental data products to NOAA and DoD processing centers operated by the United States government. Under NPOESS, Northrop Grumman Aerospace Systems Algorithms and Data Products (A&DP) organization was responsible for the algorithms that produce the EDRs, including their quality aspects. For JPSS, that responsibility has transferred to NOAA's Center for Satellite Applications & Research (STAR). As the Calibration and Validation (Cal/Val) activities move forward following both the NPP launch and subsequent JPSS and DWSS launches, rapid algorithm updates may be required. Raytheon and

  14. An automated NaI 'well' counting system for the determination of radiocaesium

    International Nuclear Information System (INIS)

    During the past five years the number of sea and freshwater samples collected by the (DFR) for radiocaesium analysis has increased significantly due to the extended monitoring programme following the Chernobyl accident. Counting times have increased because of the general reduction in levels of radioactivity following the introduction of a new effluent-treatment plant at British Nuclear Fuels's reprocessing plant at Sellafield. The large number of samples and the low levels of radioactivity have resulted in the requirement for an additional, highly sensitive, gamma counting system. This paper describes the design and development of an improved automated gamma counting system suitable for the determination of low levels of radiocaesium activity in these samples. (author)

  15. CGS-MSFSS Project report

    Energy Technology Data Exchange (ETDEWEB)

    Harvey-Collard, Patrick [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-10-27

    From January 2015 to July 2015, I was doing research at Sandia National Laboratories in Albuquerque, United States. My work there consisted of performing experimental measurements using Sandia’s unique silicon quantum computing platform. The project is about coupling donor spin quantum bits, or qubits, to quantum dots in a silicon nanostructure based on conventional microchip technology. During the project, I devised a new quantum state readout mechanism that allow better, longer lived measurement signals. The measurement (or readout) mechanism is key to any qubit architecture. Next, I was able to demonstrate a quantum manipulation of the two-electron spin states of the coupled donor and quantum dot system. This constitutes a breakthrough for donor spin qubits in silicon because it could enable larger systems consisting of many qubits. This project will lead to publications in scientific journals, presentations in international conferences, and generates exciting new opportunities for manipulating nature at the nanoscale.

  16. Understanding the ion dynamics and relaxation behavior from impedance spectroscopy of NaI doped Zwitterionic polymer system

    International Nuclear Information System (INIS)

    The ion dynamics and relaxation behavior of a novel polymer electrolyte system is studied by presenting impedance spectroscopy data in a different formalism. The prepared system has conductivity of the order of 10−3 Scm−1 at 303 K, and the RH % = 55. Depressed Nyquist plots and broadened M″ curves (as a function of ω) indicated the distribution of the relaxation time, which is further confirmed by the fractional value of the Kohlrausch–William–Watts (KWW) function (β ∼ 0.75). The hopping and caged movement of the ions are observed in the experimental frequency range (∼MHz), which is confirmed by the conductivity and dielectric representations. The scaling of the conductivity data, with reference to salt concentration and temperature, are successfully observed by fitting the conductivity data exclusively in the Jonscher Power Law (JPL) region. An inverse relation between τcon and σ indicated a strong correlation between the ion and polymer segment motion. An additional high frequency relaxation phenomenon is observed at 50% of the salt concentration, which is correlated with the self-diffusion of the ion and proposed that such phenomenon is observed when ions have multiplet forming tendency. (paper)

  17. Gamma spectrum unfolding for a NaI monitor of radioactivity in aquatic systems: Experimental evaluations of the minimal detectable activity

    Energy Technology Data Exchange (ETDEWEB)

    Bare, J., E-mail: bare@isib.be [Institut Superieur Industriel de Bruxelles, rue Royale, 150, Brussels BE1000 (Belgium); Tondeur, F. [Institut Superieur Industriel de Bruxelles, rue Royale, 150, Brussels BE1000 (Belgium)

    2011-08-15

    This paper deals with the experimental evaluation of the minimal detectable activity achievable by unfolding the gamma spectra of a NaI monitor. An aquatic monitor initially developed by the Institut des Radio-Elements (IRE) is used for the application. Unfolding of the spectra is performed with GRAVEL, a UMG package code, on the basis of a response matrix obtained with MCNP5.1.40. Experimental data have been measured at IRE, in a 20 m{sup 3} seawater tank, for known activities of {sup 137}Cs mixed with other gamma emitters ({sup 40}K, {sup 133}Ba, {sup 113}Sn and {sup 139}Ce). Deconvolution allows one to reduce the MDA of {sup 137}Cs by an order of magnitude.

  18. Area Specific Stripping of Nordic AGS and CGS data, Final report

    DEFF Research Database (Denmark)

    Korsbech, Uffe; Aage, Helle Karina; Byström, Sören;

    ), and Norwegian Radiation Protection Authority (NRPA). AGS and CGS data from Sweden, Norway, and Denmark have been examined with the ASS method. The project has been supported economically by the Nordic Nuclear Safety Research (NKS). The data sets used for the project, described in this report, have been recorded......This report describes the results from a NKS (Nordic Nuclear Safety Research) project aiming at examining the possibilities for extracting stripping factors for Airborne Gamma-ray Spectrometry (AGS) data and Carborne Gamma-ray Spectrometry (CGS) data directly from the recorded set of data, i.......e. without having to calibrate the detector systems on beforehand. The project has been carried out between 1 August 2004 to 31 March 2005 by a research group composed of persons from Technical University of Denmark (DTU), Danish Emergency Management Agency (DEMA), Geological Survey of Sweden (SGU...

  19. The design of a Nai(Tl) crystal in a system optimised for high-throughput and emergency measurement of iodine 131 in the human thyroid

    International Nuclear Information System (INIS)

    In the case of an accidental release of 131I, a system for large-scale monitoring of the population for the radionuclide intake is needed. A monitoring system is required to be capable of measuring adult as well as child subjects across a wide range of ages. Such system has been developed by the National Radiation Protection Institute in Prague (NRPI) and the Evinet company (member of the Nuvia Group). This paper describes the optimisation of the NaI(Tl) detector chosen for this system. The design of the crystal was based on Monte Carlo (MC) simulations, and supported by literature. These simulations examined three different crystal shapes and several dimensions. Based on the MC study, two prototype detectors, with crystal diameters 80 and 73 mm, were manufactured and compared with the crystals having dimensions ∅45×40 mm used for thyroid measurement at NRPI and with a standard NaI(Tl) probe (∅76.2×76.2 mm). The detector with a crystal of 80 mm diameter gave the best results and was chosen for further production. - Highlights: • New shape of NaI(Tl) crystal optimised for thyroid measurement of I-131 activity. • Twice higher detection efficiency, better MDA and resolution then old system. • Only 30% less effective than three times larger cylindrical crystal with dimension 76.2×76.2 mm

  20. Performance Analysis of CGS, a k-Coverage Algorithm Based on One-Hop Neighboring Knowledge

    OpenAIRE

    Pocquet, Alexandre; Cousin, Bernard; Molnar, Miklos; Parraud, Patrice

    2008-01-01

    International audience Controlled Greedy Sleep (CGS) is a recent k-coverage algorithm based on one-hop neighboring knowledge. This paper presents the Controlled Greedy Sleep algorithm and highlights its best use cases thanks to performance analysis. Studies have been performed within a ring topology. This specific topology enables CGS validation and the design of an energetic model. They are used to compare CGS performance results with the maximal performances that could be expected. The r...

  1. Mapping of 137Cs in Ida-Virumaa, June 2005. CGS Area Specific Spectrum Stripping and ESC from soil sampling

    DEFF Research Database (Denmark)

    Aage, Helle Karina; Korsbech, Uffe C C

    This report describes some results from a Baltic-Danish exercise with carborne gamma-ray spectrometry (CGS) measurements performed in Estonia in the summer of 2005. The goal was to measure the low level of contamination with 137Cs that still exists as part of the fall-out from the Chernobyl accid...... accident in April 1986. Another goal was to check the sensitivity calibration of the systems from soil sampling by the Estonian Radiation Protection Centre (ERPC)....

  2. Car-borne survey measurements with a 3x3` NaI detector

    Energy Technology Data Exchange (ETDEWEB)

    Larsen, E.; Ugletveit, F.; Floe, L.; Mikkelborg, O. [Norwegian Radiation Protection Authority, Oesteraas (Norway)

    1997-12-31

    The Norwegian Radiation Protection Authority (NRPA) took part in the international survey measurement exercise RESUME95 that was arranged in Finland in August 1995. NRPA performed measurements with a simple car-borne measuring system based on standard equipment, a 3x3` NaI detector, an MCA and a GPS connected to a portable PC. The results show substantial variations in dose rate inside areas of a few square kilometres. Spectrum analysis shows that a major part of these differences are caused by variations in deposition of {sup 137}Cs. Our results show that even standard 3x3` NaI detectors can be used for car based survey measurements in fall out situations and search for sources. The detection limits are higher than for larger detectors, but the main limiting factor seem to be the timing capabilities of the acquisition system. (au).

  3. Neutron detection by large NaI crystal

    Science.gov (United States)

    Lavagno, A.; Gervino, G.

    2016-07-01

    In present days new neutron detection methods are under developed due to the global shortage of 3He and the toxicity of BF3. Neutrons can be indirectly detected by high-energy photons. The performance of a cylindrical NaI crystal, 4 in. diameter and 8 in. length as an indirect neutron detector has been investigated. Measurements were performed with 252Cf source with bare and shielded NaI detector. With a proper converter and moderator structure for the NaI detector, the detection efficiencies and the minimum detectable activities are improved, making the method very interesting for security applications. The indirect detection of neutrons by photons has several advantages. First, this method can in principle be suited by any gamma spectrometer with only slight modifications that do not compromise with its gamma spectrometry measurements. Second, fission neutron sources and neutron generators can be discriminated thanks to their different gamma energy spectra, a discrimination easily done by a NaI spectrometer.

  4. Relative Study of CGS with ACO and BCO Swarm Intelligence Techniques

    Directory of Open Access Journals (Sweden)

    T.Hashni

    2012-09-01

    Full Text Available Swarm intelligence is the collective-level, problem-solving behavior of groups of relatively simple agents.Local interactions among agents, either direct or indirect through the environment, are fundamental for theemergence of swarm intelligence. Ant Colony Optimization (ACO is a swarm based meta-heuristic method that isinspired by the behavior of real ant colonies. Bee Colony Optimization (BCO meta-heuristic belongs to the groupof Swarm Intelligence techniques. Consultant Guided Search (CGS is a new hybrid meta heuristic, which combinesnew ideas with concepts found in Ant colony Optimization (ACO, Bee Colony Optimization (BCO technique. Thispaper presents comparative study of CGS, ACO, BCO techniques and the flexibility of CGS.

  5. Inhibition of cholesterol ester transfer protein CGS 25159 and changes in lipoproteins in hamsters.

    Science.gov (United States)

    Kothari, H V; Poirier, K J; Lee, W H; Satoh, Y

    1997-01-01

    As a result of screening, several isoflavans were identified to be antagonists of cholesterol ester transfer protein (CETP) activity. The present study evaluates CGS 25159, a synthetic isoflavan, as a putative inhibitor of CETP activity of human and hamster plasma. Determined by [3]CE transfer from HDL to VLDL + LDL fraction or by fluorescent-CE transfer assay, CGS 25159 inhibited CETP in both human plasma bottom fraction (d = 1.21 g/ml) and in plasma from Golden Syrian Hamsters with an IC50 contention that pharmacological down regulation of CETP activity could result in favorable changes in lipoprotein profile. PMID:9051198

  6. The adenosine A2A receptor agonist CGS 21680 exhibits antipsychotic-like activity in Cebus apella monkeys

    DEFF Research Database (Denmark)

    Andersen, M B; Fuxe, K; Werge, T;

    2002-01-01

    The adenosine A2A receptor agonist CGS 21680 has shown effects similar to dopamine antagonists in behavioural assays in rats predictive for antipsychotic activity, without induction of extrapyramidal side-effects (EPS). In the present study, we examined whether this functional dopamine antagonism...... and lack of EPS in rodents could also be observed in non-human primates. We investigated the effects of CGS 21680 on behaviours induced by D-amphetamine and (-)-apomorphine in EPS-sensitized Cebus apella monkeys. CGS 21680 was administered s.c. in doses of 0.01, 0.025 and 0.05 mg/kg, alone......-induced behaviours (unrest, stereotypies, arousal) were unaffected. EPS were not observed at any dose. At 0.05 mg/kg CGS 21680 produced vomiting. The two lower doses did not produce observable side-effects. Though the differential effect on amphetamine- and apomorphine-induced behaviours is intriguing, CGS 21680...

  7. Long-term trend of climate variables in the upper Dong Nai river basin in Vietnam

    Science.gov (United States)

    Truong, Nguyen Cung Que; Nguyen, Hong Quan; Kondoh, Akihiko

    2015-04-01

    Dong Nai river and Mekong delta downstream are located in and supplied the major water resources to the whole Southern of Vietnam. In the state of continuous changes in water resources due to climate changes, there are several controversy about the potential impact of sediment transport and river flows downstream due to either the cascade hydroelectric power plant system or dam construction in the upper of Mekong delta. Therefore, management and planning for efficient use of Dong Nai river water resource is very important. Furthermore, that it is necessary to consider the hydrological regime change by the effects of climate variable. On the other hand, solving the problems of water shortage in the dry season and flood control in rainy season are also important for issues of water management at Dong Nai river basin. In this study we evaluated changes in two main factors of the water balance equation (both rainfall and evapotranspiration) to assess long-term change in the hydrological regime in the upper area of Dong Nai river basin. This key theme was divided into the following two sub-goals. The first goal was to analyze long term spatial and temporal rainfall trends. The second goal was to analyze the long-term trend of meteorological factors determining evapotranspiration such as air temperature, wind speed, solar radiation and sunshine duration. The results were used to assess their impact to evapotranspiration. The meteorological and hydrological data of the basin for the last 20 years (from 1993 to 2012) were analyzed based on the Empirical Mode Decomposition (EMD) method. The EMD method has been pioneered by Huang et al. (1998) for adaptively representing nonstationary time-series data as sum of zero-mean amplitude modulation-frequency modulation (AM-FM) components by iteratively conducting the sifting process. These components called Intrinsic Mode Functions (IMFs) allow the calculation of a meaningful multi-component instantaneous frequency. The results

  8. ASI/CGS products and services in support of GNSS-meteorology

    Science.gov (United States)

    Pacione, Rosa; Pace, Brigida; Bianco, Giuseppe

    2013-04-01

    For more than a decade, ASI/CGS has supported ground-based GNSS meteorology in Europe participating in various projects such as MAGIC, COST-716, TOUGH, E-GVAP (phase I and II) and providing Zenith Tropospheric path Delays (ZTD) derived from a European network of GNSS stations covering mainly the central Mediterranean area. Working in close cooperation with the meteorological community, GNSS data are analyzed in order to provide ZTD with different latencies ranging from post-processing, useful for climate studies, to near-real time, for hourly assimilation into Numerical Weather Prediction (NWP) model. However advancements in NWP models (such as the Met Office UKV 1.5km model) with rapid update cycles require observations with improved timeliness and with greater spatial and temporal resolution than is currently available. To fulfil this requirement a sub-hourly PPP processing has been set-up, and is under evaluation, thanks to the availability of the IGS RT orbit and clock corrections. Moreover ZTD estimates are the input data for developing new and enhanced products: ZTD residuals fields and Integrated Water Vapour (IWV) maps. The former will be helpful in augmenting empirical tropospheric models for positioning applications. The latter are useful for nowcasting and severe weather monitoring since they let to follow IWV time evolution. We present an overview of the developed products and services; the new directions in support of NWP applications and the nowcasting and forecasting of severe weather events that emerge within E-GVAP phase III and the EU COST Action "Advanced Global Navigation Satellite Systems tropospheric products for monitoring Severe Weather Events and Climate" (GNSS4SWEC). Acknowledgements. This work has been carried out under ASI contract I-014-10-0.

  9. Resolving Galactic Feedback and Gas Accretion in NaI Absorption with MaNGA

    Science.gov (United States)

    Rubin, Kate; MaNGA Team

    2016-01-01

    Current models of galaxy formation require that the buildup of galactic stellar mass proceeds at a rate much slower than the rate at which gas is accreted onto dark matter halos. The implementation of winds in these models, however, has been primarily via ad hoc prescriptions, as the relationship between outflow morphology and kinematics and star formation activity is not well understood. In addition, empirical evidence for the inflow of gas onto star-forming galaxies has remained elusive. To address these issues, we analyze absorption line profiles for the NaI λλ5890, 5896 transition in spatially-resolved spectroscopy of nearby galaxies observed in the MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) survey. We identify outflows of cool (T~102 K) gas via the blueshift of the absorption lines. Initial results suggest that in systems in which outflows are detected, the equivalent width of the flow varies significantly over the surface of the galaxy, revealing a changing flow covering fraction/velocity within individual objects. We also measure the incidence of redshifted NaI absorption in this sample for constraints on the frequency and cross section of cool gas accretion. This analysis offers unique insight into the morphology, surface density, and velocity of cool inflow and outflow around nearby galaxies. Accurate estimates of these quantities are fundamental to understanding the role of gas flows in regulating galaxy growth.

  10. NaI detector neutron activation spectra for PGNAA applications

    Science.gov (United States)

    Gardner; El; Zheng; Hayden; Mayo

    2000-10-01

    When NaI detectors are used in prompt gamma-ray neutron activation analysis devices, they are activated by neutrons that penetrate the detector. While thermal neutron filters like boron or lithium can be used to reduce this activation, it can never be completely eliminated by this approach since high energy neutrons can penetrate the detector and thermalize inside it. This activation results in the emission of prompt gamma rays from both the I and Na and the production of the radioisotopes 128I and 24Na that subsequently decay and emit their characteristic beta particles and gamma rays. The resulting three spectra represent a background for this measurement. An experimental method for obtaining these three spectra is described and results are reported for 2" x 2", 5" x 5", 6" x 6", and 1" x 6" NaI detectors using the thermal neutron beam of the NCSU PULSTAR nuclear reactor. In addition, Monte Carlo simulation programs have been developed and used for simulating these spectra. Good results have been obtained by the Monte Carlo method for the two radioisotope spectra, and it is anticipated that good results will also be obtained for the prompt gamma-ray spectrum when the I and Na coincidence schemes are known. PMID:11003483

  11. NaI detector nonlinearity for PGNAA applications

    Energy Technology Data Exchange (ETDEWEB)

    Gardner, Robin P.; Mayo, Charles W

    1999-08-01

    The nonlinearity of a 6''x6'' NaI detector used for PGNAA has been measured. The prompt {gamma}-rays from pure element samples mixed with graphite were used for this determination in the range from 1.712 to 10.829 MeV and {gamma}-rays from radioisotope sources were used in the range from 0.356 to 1.333 MeV. A surprising result is that the pulse height per unit absorbed energy is slightly higher from single escape as opposed to full energy peaks. One explanation for this is that the light production efficiency for positrons may be different than that for electrons. By interpolation a value for the coincidence spectral full energy peak exhibited by NaI detectors that are neutron activated is obtained. The value reported is 6.885 MeV which is slightly higher than the cross section weighted value of 6.834 MeV. (The reported S{sub N} values for I and Na are 6.826 and 6.959 MeV, respectively.)

  12. NaI detector neutron activation spectra for PGNAA applications

    Energy Technology Data Exchange (ETDEWEB)

    Gardner, R.P. E-mail: gardner@ncsu.edu; Sayyed, El; Zheng Yuanshui; Hayden, Stephanie; Mayo, C.W

    2000-11-15

    When NaI detectors are used in prompt gamma-ray neutron activation analysis devices, they are activated by neutrons that penetrate the detector. While thermal neutron filters like boron or lithium can be used to reduce this activation, it can never be completely eliminated by this approach since high energy neutrons can penetrate the detector and thermalize inside it. This activation results in the emission of prompt gamma rays from both the I and Na and the production of the radioisotopes {sup 128}I and {sup 24}Na that subsequently decay and emit their characteristic beta particles and gamma rays. The resulting three spectra represent a background for this measurement. An experimental method for obtaining these three spectra is described and results are reported for 2x2, 5x5, 6x6, and 1x6 NaI detectors using the thermal neutron beam of the NCSU PULSTAR nuclear reactor. In addition, Monte Carlo simulation programs have been developed and used for simulating these spectra. Good results have been obtained by the Monte Carlo method for the two radioisotope spectra, and it is anticipated that good results will also be obtained for the prompt gamma-ray spectrum when the I and Na coincidence schemes are known.

  13. NaI detector nonlinearity for PGNAA applications

    CERN Document Server

    Gardner, R P

    1999-01-01

    The nonlinearity of a 6''x6'' NaI detector used for PGNAA has been measured. The prompt gamma-rays from pure element samples mixed with graphite were used for this determination in the range from 1.712 to 10.829 MeV and gamma-rays from radioisotope sources were used in the range from 0.356 to 1.333 MeV. A surprising result is that the pulse height per unit absorbed energy is slightly higher from single escape as opposed to full energy peaks. One explanation for this is that the light production efficiency for positrons may be different than that for electrons. By interpolation a value for the coincidence spectral full energy peak exhibited by NaI detectors that are neutron activated is obtained. The value reported is 6.885 MeV which is slightly higher than the cross section weighted value of 6.834 MeV. (The reported S sub N values for I and Na are 6.826 and 6.959 MeV, respectively.)

  14. VizieR Online Data Catalog: The CGS. IV. Elliptical galaxies colors (Huang+, 2016)

    Science.gov (United States)

    Huang, S.; Ho, L. C.; Peng, C. Y.; Li, Z.-Y.; Barth, A. J.

    2016-07-01

    This work uses the multi-band optical images of nearby ellipticals from the Carnegie-Irvine Galaxy Survey (CGS; Ho et al. 2011, J/ApJS/197/21, Paper I). The observations were made using the 100 inch du Pont telescope at Las Campanas Observatory to provide high-quality Johnson/Kron-Cousins BVRI images during the period 2003 February to 2006 June. (1 data file).

  15. The calmodulin inhibitor CGS 9343B inhibits voltage-dependent K{sup +} channels in rabbit coronary arterial smooth muscle cells

    Energy Technology Data Exchange (ETDEWEB)

    Li, Hongliang; Hong, Da Hye; Kim, Han Sol; Kim, Hye Won [Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon, 200-701 (Korea, Republic of); Jung, Won-Kyo [Department of Biomedical Engineering, Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 608-737 (Korea, Republic of); Na, Sung Hun [Institute of Medical Sciences, Department of Obstetrics and Gynecology, Kangwon National University Hospital, School of Medicine, Kangwon National University, Chuncheon, 200-701 (Korea, Republic of); Jung, In Duk; Park, Yeong-Min [Department of Immunology, Lab of Dendritic Cell Differentiation and Regulation, College of Medicine, Konkuk University, Chungju 380-701 (Korea, Republic of); Choi, Il-Whan, E-mail: cihima@inje.ac.kr [Department of Microbiology, Inje University College of Medicine, Busan, 614-735 (Korea, Republic of); Park, Won Sun, E-mail: parkws@kangwon.ac.kr [Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon, 200-701 (Korea, Republic of)

    2015-06-15

    We investigated the effects of the calmodulin inhibitor CGS 9343B on voltage-dependent K{sup +} (Kv) channels using whole-cell patch clamp technique in freshly isolated rabbit coronary arterial smooth muscle cells. CGS 9343B inhibited Kv currents in a concentration-dependent manner, with a half-maximal inhibitory concentration (IC{sub 50}) value of 0.81 μM. The decay rate of Kv channel inactivation was accelerated by CGS 9343B. The rate constants of association and dissociation for CGS 9343B were 2.77 ± 0.04 μM{sup −1} s{sup −1} and 2.55 ± 1.50 s{sup −1}, respectively. CGS 9343B did not affect the steady-state activation curve, but shifted the inactivation curve toward to a more negative potential. Train pulses (1 or 2 Hz) application progressively increased the CGS 9343B-induced Kv channel inhibition. In addition, the inactivation recovery time constant was increased in the presence of CGS 9343B, suggesting that CGS 9343B-induced inhibition of Kv channel was use-dependent. Another calmodulin inhibitor, W-13, did not affect Kv currents, and did not change the inhibitory effect of CGS 9343B on Kv current. Our results demonstrated that CGS 9343B inhibited Kv currents in a state-, time-, and use-dependent manner, independent of calmodulin inhibition. - Highlights: • We investigated the effects of CGS 9394B on Kv channels. • CGS 9394B inhibited Kv current in a state-, time-, and use-dependent manner. • Caution is required when using CGS 9394B in vascular function studies.

  16. Spatially Extended NaI D Resonant Emission and Absorption in the Galactic Wind of the Nearby Infrared-Luminous Quasar F05189-2524

    CERN Document Server

    Rupke, David

    2014-01-01

    Emission from metal resonant lines has recently emerged as a potentially powerful probe of the structure of galactic winds at low and high redshift. In this work, we present only the second example of spatially resolved observations of NaI D emission from a galactic wind in a nearby galaxy (and the first 3D observations at any redshift). F05189-2524, a nearby (z=0.043) ultra luminous infrared galaxy powered by a quasar, was observed with the integral field unit on the Gemini Multi-Object Spectrograph (GMOS) at Gemini North. NaI D absorption in the system traces dusty filaments on the near side of an extended, AGN-driven galactic wind (with projected velocities up to 2000 km/s). These filaments (A_V < 4) and N(H) < 10^22 cm^-2) simultaneously obscure the stellar continuum and NaI D emission lines. The NaI D emission lines serve as a complementary probe of the wind; they are strongest in regions of low foreground obscuration and extend up to the limits of the field of view (galactocentric radii of 4 kpc)....

  17. The adenosine A2A receptor agonist CGS 21680 exhibits antipsychotic-like activity in Cebus apella monkeys

    DEFF Research Database (Denmark)

    Andersen, M B; Fuxe, K; Werge, T;

    2002-01-01

    and lack of EPS in rodents could also be observed in non-human primates. We investigated the effects of CGS 21680 on behaviours induced by D-amphetamine and (-)-apomorphine in EPS-sensitized Cebus apella monkeys. CGS 21680 was administered s.c. in doses of 0.01, 0.025 and 0.05 mg/kg, alone...... and in combination with D-amphetamine and (-)-apomorphine. The monkeys were videotaped after drug administration and the tapes were rated for EPS and psychosis-like symptoms. CGS 21680 decreased apomorphine-induced behavioural unrest, arousal (0.01-0.05 mg/kg) and stereotypies (0.05 mg/kg) while amphetamine......-induced behaviours (unrest, stereotypies, arousal) were unaffected. EPS were not observed at any dose. At 0.05 mg/kg CGS 21680 produced vomiting. The two lower doses did not produce observable side-effects. Though the differential effect on amphetamine- and apomorphine-induced behaviours is intriguing, CGS 21680...

  18. Stabilization of prompt gamma-ray neutron activation analysis (PGNAA) spectra from NaI detectors

    Energy Technology Data Exchange (ETDEWEB)

    Metwally, W.A.; Gardner, R.P. E-mail: gardner@ncsu.edu

    2004-06-11

    NaI detectors are still used frequently in industrial Prompt Gamma-Ray Neutron Activation Analysis applications such as in bulk material analysis. They have the advantages of being efficient for high-energy gamma rays, being relatively rugged, and being able to be used without cooling. When using NaI detectors, and consequently photomultiplier tubes, the quality of the data can drastically deteriorate through gain and zero shifts that result in spectral smearing due to temperature and/or counting rate changes. A new offline approach is presented to stabilize the NaI spectral drift. The approach is not sensitive to the cause of the drift and takes into account the NaI and ADC non-linearities. Peak resolution is improved substantially when this approach is used in the presence of spectral drift.

  19. Stabilization of prompt gamma-ray neutron activation analysis (PGNAA) spectra from NaI detectors

    Science.gov (United States)

    Metwally, W. A.; Gardner, R. P.

    2004-06-01

    NaI detectors are still used frequently in industrial Prompt Gamma-Ray Neutron Activation Analysis applications such as in bulk material analysis. They have the advantages of being efficient for high-energy gamma rays, being relatively rugged, and being able to be used without cooling. When using NaI detectors, and consequently photomultiplier tubes, the quality of the data can drastically deteriorate through gain and zero shifts that result in spectral smearing due to temperature and/or counting rate changes. A new offline approach is presented to stabilize the NaI spectral drift. The approach is not sensitive to the cause of the drift and takes into account the NaI and ADC non-linearities. Peak resolution is improved substantially when this approach is used in the presence of spectral drift.

  20. Late specialization: the key to success in centimeters, grams, or seconds (cgs) sports

    DEFF Research Database (Denmark)

    Moesch, Karin Silvia; Elbe, Anne-Marie; Hauge, Marie-Louise Trier;

    2011-01-01

    , involvement in other sports, career development, as well as determining whether or not these variables predict membership in the elite group. The results clearly reveal that elite athletes specialized at a later age and trained less in childhood. However, elite athletes were shown to intensify their training......A controversial question within elite sports is whether young athletes need to specialize early, as suggested by Ericsson et al., or if it is more beneficial to follow the path of early diversification proposed by Côté et al., which includes sampling different sport experiences during childhood...... and specializing later on during adolescence. Based on a Danish sample of 148 elite and 95 near-elite athletes from cgs sports (sports measured in centimeters, grams, or seconds), the present study investigates group differences concerning accumulated practice hours during the early stages of the career...

  1. Chlordiazepoxide enhances the anxiogenic action of CGS 8216 in the social interaction test: evidence for benzodiazepine withdrawal?

    Science.gov (United States)

    File, S E; Pellow, S

    1985-07-01

    The benzodiazepine receptor 'inverse agonist' CGS 8216 has a specific anxiogenic action in the social interaction test that cannot be reversed by other compounds acting at the benzodiazepine site: Ro 15-1788, FG 7142 or beta-CCE. We tried to reverse the anxiogenic effect with chlordiazepoxide, which is able to antagonise the anxiogenic effects of several other compounds acting at benzodiazepine or related sites. Chlordiazepoxide given acutely (10-20 mg/kg) was unable to antagonise the anxiogenic action of CGS 8216 (5-10 mg/kg); instead there was a tendency to enhance its effects. The effects of chlordiazepoxide after 5 days pretreatment were then assessed, since chronic treatment is necessary to reverse the anxiogenic actions of Ro 15-1788 and Ro 5-4864. At 5 mg/kg chronically, chlordiazepoxide was unable to antagonise the anxiogenic effect of CGS 8216, and at 20 mg/kg there was a significant enhancement of the effects of CGS 8216 on social interaction without an effect on locomotor activity. These results are discussed in terms of withdrawal from benzodiazepine treatment.

  2. Experiences With Area Specific Spectrum Stripping of Nai(Tl) Gamma Spectra

    DEFF Research Database (Denmark)

    Aage, Helle Karina; Korsbech, Uffe C C; Bargholz, Kim;

    2006-01-01

    Abstract Processing of airborne and carborne gamma-ray spectra (AGS and CGS) often includes the stripping (elimination) of the signals from natural radioactivity. Hereby the net result becomes the signals from manmade radioactivity or other radiation anomalies. The parameters needed for spectrum ...

  3. Dietary I(-) absorption: expression and regulation of the Na(+)/I(-) symporter in the intestine.

    Science.gov (United States)

    Nicola, Juan Pablo; Carrasco, Nancy; Masini-Repiso, Ana María

    2015-01-01

    Thyroid hormones are critical for the normal development, growth, and functional maturation of several tissues, including the central nervous system. Iodine is an essential constituent of the thyroid hormones, the only iodine-containing molecules in vertebrates. Dietary iodide (I(-)) absorption in the gastrointestinal tract is the first step in I(-) metabolism, as the diet is the only source of I(-) for land-dwelling vertebrates. The Na(+)/I(-) symporter (NIS), an integral plasma membrane glycoprotein located in the brush border of enterocytes, constitutes a central component of the I(-) absorption system in the small intestine. In this chapter, we review the most recent research on structure/function relations in NIS and the protein's I(-) transport mechanism and stoichiometry, with a special focus on the tissue distribution and hormonal regulation of NIS, as well as the role of NIS in mediating I(-) homeostasis. We further discuss recent findings concerning the autoregulatory effect of I(-) on I(-) metabolism in enterocytes: high intracellular I(-) concentrations in enterocytes decrease NIS-mediated uptake of I(-) through a complex array of posttranscriptional mechanisms, e.g., downregulation of NIS expression at the plasma membrane, increased NIS protein degradation, and reduction of NIS mRNA stability leading to decreased NIS mRNA levels. Since the molecular identification of NIS, great progress has been made not only in understanding the role of NIS in I(-) homeostasis but also in developing protocols for NIS-mediated imaging and treatment of various diseases.

  4. Characterization of Solid Building Structures with NaI Gamma Spectroscopy

    International Nuclear Information System (INIS)

    This paper presents an in-situ gamma spectroscopy measurement setup, which utilizes a NaI detector for clearance measurements of concrete building structures. As such an apparatus can be operated at room temperature, large and costly supporting accessories are not required. This is a major improvement in comparison to existing approaches that work with semiconductor technology, e.g., high pure germanium detectors. The method under discussion allows to create versatile and handy measurement systems, which lower cost and time efforts, required for characterization measurements during the disassembly of nuclear power plants, considerably. This novel characterization method has been developed jointly by E.ON and the University Rostock to foster the dismantling activities of E.ON nuclear power plants. The regulatory acceptance for this method has been granted for the facility Nuclear Power Plant Isar (KKI) in July 2013. This paper details the method under discussion and how an acceptance has been reached, according to applicable legislation. Furthermore, a comparison with state of the art characterization methods plus experiences from the practical application of the method will be shown. (authors)

  5. Characterisation of corona-generated ions used in a Neutral cluster and Air Ion Spectrometer (NAIS)

    OpenAIRE

    Manninen, H. E.; A. Franchin; Schobesberger, S.; Hirsikko, A.; Hakala, J.; A. Skromulis; Kangasluoma, J.; M. Ehn; Junninen, H.; Mirme, A.; Mirme, S.; Sipilä, M.; T. Petäjä; Worsnop, D.R.; M. Kulmala

    2011-01-01

    We characterized size and chemical composition of ions generated by a corona-needle charger of a Neutral cluster and Air Ion Spectrometer (NAIS) by using a high resolution differential mobility analyzer and a time-of-flight mass spectrometer. Our study is crucial to verify the role of corona-generated ions in the particle size spectra measured with the NAIS, in which a corona charger is used to charge aerosol particles down to the size range overlapping with the size of generated ions. The si...

  6. Pollution of the River Venta within the Territory of Kuršėnai Town

    Directory of Open Access Journals (Sweden)

    Jūratė Sitonytė

    2010-10-01

    Full Text Available Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} The impact of Kuršėnai town on the pollution of the river Venta and the effect of biogenic substances on the mass of phytoplankton are dealt with in the paper. Samples were taken and registration of the indicatory aquatic plants was carried out in three places of the river, i.e. upstream Kuršėnai, in the centre of the town and downstream Kuršėnai. Concentrations of biogenic substances (compounds of total soluble phosphorus and non-organic nitrogen and organic substances were measured. Their effect on phytocenosis was estimated by measuring the concentration of chlorophyll a and by identifying indicator plants in the river. The research has shown that large amounts of phosphorus enter the river in this territory. The average concentration of total soluble phosphorus upstream Kuršėnai (0.069 mg l-1 does not exceed the maximum permissible concentration (MPC, whereas downstream Kuršėnai it is twice higher (0.135 mg l-1 and thus exceeds the permissible limits. The increased concentration of chlorophyll (10.49 µg l-1 downstream in comparison to 9.11 µg l-1 upstream Kuršėnai, plenty of water plants, their varietal diversity and indicatory features downstream Kuršėnai indicate more intensive water eutrophication in comparison

  7. How to reliably detect molecular clusters and nucleation mode particles with Neutral cluster and Air Ion Spectrometer (NAIS)

    Science.gov (United States)

    Manninen, Hanna E.; Mirme, Sander; Mirme, Aadu; Petäjä, Tuukka; Kulmala, Markku

    2016-08-01

    To understand the very first steps of atmospheric particle formation and growth processes, information on the size where the atmospheric nucleation and cluster activation occurs, is crucially needed. The current understanding of the concentrations and dynamics of charged and neutral clusters and particles is based on theoretical predictions and experimental observations. This paper gives a standard operation procedure (SOP) for Neutral cluster and Air Ion Spectrometer (NAIS) measurements and data processing. With the NAIS data, we have improved the scientific understanding by (1) direct detection of freshly formed atmospheric clusters and particles, (2) linking experimental observations and theoretical framework to understand the formation and growth mechanisms of aerosol particles, and (3) parameterizing formation and growth mechanisms for atmospheric models. The SOP provides tools to harmonize the world-wide measurements of small clusters and nucleation mode particles and to verify consistent results measured by the NAIS users. The work is based on discussions and interactions between the NAIS users and the NAIS manufacturer.

  8. Dark matter searches with NaI scintillators in the Canfranc underground laboratory: ANAIS experiment

    International Nuclear Information System (INIS)

    A large mass dark matter search experiment with NaI scintillators at the Canfranc Underground Laboratory is underway. A 10.7 kg prototype with improved light collection efficiency and special low-background improvements has been tested and started taking data underground in summer 2005. Preliminary results and prospects for the experiment are presented

  9. Monitoring implementation of the RP-10 reactor by N-16 using an NaI detector

    International Nuclear Information System (INIS)

    Measurements with an NaI detector are carried out in order to: first, to locate the detector optimal position to measure the activity of N16; and second, to determine the energy and time spectrum for the activity observed. This will allow calibration of the march chamber 4 according to the activities of N16

  10. The anxiogenic action of FG 7142 in the social interaction test is reversed by chlordiazepoxide and Ro 15-1788 but not by CGS 8216.

    Science.gov (United States)

    File, S E; Pellow, S

    1984-10-01

    The effects of FG 7142 were examined in the social interaction test, alone and in combination with chlordiazepoxide, Ro 15-1788 and CGS 8216. The anxiogenic action of FG 7142 (5 mg/kg) was reversed by chlordiazepoxide (5 mg/kg) and by Ro 15-1788 (10 mg/kg), but not by CGS 8216 (10 mg/kg). The profile of FG 7142 in this test and the pattern of its interactions with other compounds is similar to that of beta-CCE, but can be distinguished from that of Ro 15-1788 and CGS 8216. It is concluded that FG 7142, Ro 15-1788 and CGS 8216 may act via different sites to produce their anxiogenic effects.

  11. The COSINUS project - perspectives of a NaI scintillating calorimeter for dark matter search

    CERN Document Server

    Angloher, G; Gironi, L; Gotti, C; Pessina, G; Gütlein, A; Maino, M; Nagorny, S S; Pagnanini, L; Petricca, F; Pirro, S; Pröbst, F; Reindl, F; Schäffner, K; Schieck, J; Seidel, W

    2016-01-01

    The R&D project COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) aims to develop a cryogenic scintillating calorimeter using NaI as target crystal for direct darkmatter search. Dark matter particles interacting with the detector material generate both a phonon signal and scintillation light. While the phonon signal provides a precise determination of the deposited energy, the simultaneously measured scintillation light allows for a particle identification on an event-by-event basis, a powerful tool to study material-dependent interactions, and to suppress backgrounds. Using the same target material as the DAMA/LIBRA collaboration, the COSINUS technique may offer a unique possibility to investigate and contribute information to the presently controversial situation in the dark matter sector. We report on the dedicated design planned for the NaI proof-of-principle detector and the objectives of using this detection technique in the light of direct dark matter detec...

  12. A new measurement of the neutron detection efficiency for the NaI Crystal Ball detector

    International Nuclear Information System (INIS)

    We report on a measurement of the neutron detection efficiency in NaI crystals in the Crystal Ball detector obtained from a study of single π0 photoproduction on deuterium using the tagged photon beam at the Mainz Microtron. The results were obtained up to a neutron energy of 400 MeV . They are compared to previous measurements made more than 15 years ago at the pion beam at the BNL AGS

  13. Elucidating the molecular physiology of lantibiotic NAI-107 production in Microbispora ATCC-PTA-5024

    OpenAIRE

    Gallo, Giuseppe; Renzone, Giovanni; Palazzotto, Emilia; Monciardini, Paolo; Arena, Simona; Faddetta, Teresa; Giardina, Anna; Alduina, Rosa; Weber, Tilmann; Sangiorgi, Fabio; Russo, Alessandro; Spinelli, Giovanni; Sosio, Margherita; Scaloni, Andrea; Puglia, Anna Maria

    2016-01-01

    Background The filamentous actinomycete Microbispora ATCC-PTA-5024 produces the lantibiotic NAI-107, which is an antibiotic peptide effective against multidrug-resistant Gram-positive bacteria. In actinomycetes, antibiotic production is often associated with a physiological differentiation program controlled by a complex regulatory and metabolic network that may be elucidated by the integration of genomic, proteomic and bioinformatic tools. Accordingly, an extensive evaluation of the proteomi...

  14. Characterisation of corona-generated ions used in a Neutral cluster and Air Ion Spectrometer (NAIS

    Directory of Open Access Journals (Sweden)

    H. E. Manninen

    2011-04-01

    Full Text Available We characterized size and chemical composition of ions generated by a corona-needle charger of a Neutral cluster and Air Ion Spectrometer (NAIS by using a high resolution differential mobility analyzer and a time-of-flight mass spectrometer. Our study is crucial to verify the role of corona-generated ions in the particle size spectra measured with the NAIS, in which a corona charger is used to charge aerosol particles down to the size range overlapping with the size of generated ions. The size and concentration of ions produced by the corona discharging process depend both on corona voltage and on properties and composition of carrier gas. Negative ions were <1.6 nm (0.8 cm2 V−1 s−1 in mobility in all tested gas mixtures (nitrogen, air with variable mixing ratios of water vapour, whereas positive ions were <1.7 nm (0.7 cm2 V−1 s−1. Electrical filtering of the corona-generated ions and not removing all charged particles plays an important role in determining the lowest detection limit. Based on our experiments, the lowest detection limit for the NAIS in the particle mode is between 2 and 3 nm.

  15. Characterisation of corona-generated ions used in a Neutral cluster and Air Ion Spectrometer (NAIS

    Directory of Open Access Journals (Sweden)

    H. E. Manninen

    2011-12-01

    Full Text Available We characterized size and chemical composition of ions generated by a corona-needle charger of a Neutral cluster and Air Ion Spectrometer (NAIS by using a high resolution differential mobility analyzer and a time-of-flight mass spectrometer. Our study is crucial to verify the role of corona-generated ions in the particle size spectra measured with the NAIS, in which a corona charger is used to charge aerosol particles down to the size range overlapping with the size of generated ions. The size and concentration of ions produced by the corona discharging process depend both on corona voltage and on properties and composition of carrier gas. Negative ions were <1.6 nm (0.8 cm2 V−1 s−1 in mobility in all tested gas mixtures (nitrogen, air with variable mixing ratios of water vapour, whereas positive ions were <1.7 nm (0.7 cm2 V−1 s−1. Electrical filtering of the corona generated ions and not removing all charged particles plays an important role in determining the lowest detection limit. Based on our experiments, the lowest detection limit for the NAIS in the particle mode is between 2 and 3 nm.

  16. Field Observation of the Green Ocean Amazon. Neutral Cluster Air Ion Spectrometer (NAIS) Final Campaign Summary

    Energy Technology Data Exchange (ETDEWEB)

    Petaja, T. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Backman, J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Manninen, H. E. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Wimmer, D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-03-01

    The neutral cluster and air ion spectrometer (NAIS) was deployed to the T3 site for Intensive Operations Periods 1 and 2 (IOP1 and IOP2). The NAIS is an instrument that measures aerosol particle and ion number size distributions in the mobility diameter range of 0.8 to 42 nm, corresponding to electrical mobility range between 3.2 and 0.0013 cm2 V-1 s-1. New particle formation (NPF) events were detected using the NAIS at the T3 field site during IOP1 and IOP2. Secondary NPF is a globally important source of aerosol number. To fully explain atmospheric NPF and subsequent growth, we need to directly measure the initial steps of the formation processes in different environments, including rain forest. Particle formation characteristics, such as formation and growth rates, were used as indicators of the relevant processes and participating compounds in the initial formation. In a case of parallel ion and neutral cluster measurements, we estimated the relative contribution of ion-induced and neutral nucleation to the total particle formation.

  17. Optimizing fermentation conditions for bioH2 production with Clostridium butyricum CGS2 using statistical experimental design

    Energy Technology Data Exchange (ETDEWEB)

    Lo, Yung-Chung; Yung-Sheng; Chen, Chun-Yen; Chang, Jo-Shu [National Cheng Kung Univ., Tainan, Taiwan (China). Dept. of Chemical Engineering

    2010-07-01

    As the global temperature keeps rising, the demand for reliable and effective energy alternatives is increasingly urgent. Among the developing alterative energy resources, hydrogen is recognized as a clean and recyclable energy carrier and is considered one of the major energy sources in the future. Hydrogen fermentation is a non-pollutant way of producing H2. Among fermentative H{sub 2} production processes, the H2 production rate by dark fermentation is higher than photo fermentation, thereby having higher viability for commercial applications. In this study, an indigenous isolate Clostridium butyricum CGS2 able to convert sugar (such as glucose, fructose, sucrose and xylose) into hydrogen was used the bacterial H2 producer. Using sucrose as the carbon source in a batch process, C. butyricum CGS2 gave a maximum H2 production rate (v{sub H2}) and H2 yield (Y{sub H2}) of 262.2 ml/h/l and 2.26 mol H2/mol sucrose, respectively. Response surface methodology (RSM) was employed to identify the optimal conditions for hydrogen production of C. butyricum CGS2 using sucrose concentration, temperature and pH as the primary operation parameters. With a performance index of Y{sub H2}, the optimum condition predicted from RSM analysis was: pH, 5.2; temperature, 35.1 C; sucrose concentration, 22.5 g COD/l. Under this condition, the hydrogen content in the biogas was 58.5%, H2 was 0.54 l/h/l, total hydrogen production was 7.2 l, and Y{sub H2} was 2.91 mol H2/mol sucrose. On the other hand, when H2 was used as the performance index, the optimum condition was: pH, 5.36; temperature, 35.1 C; sucrose concentration, 26.1 g COD/l. This condition gave a hydrogen content of 63.3%, a Y{sub H2} of 3.26 mol H2/mol sucrose, a total hydrogen production of 10.5 l, and a H2 of 0.50 l/h/l. The validity of RSM predictions was confirmed by additional experiments, suggesting that using RSM design could attain an optimal culture condition for C. butyricum CGS2 to enhance its hydrogen production

  18. In Vivo Pharmacokinetics and Pharmacodynamics of the Lantibiotic NAI-107 in a Neutropenic Murine Thigh Infection Model

    OpenAIRE

    Lepak, Alexander J.; Marchillo, Karen; Craig, William A.; Andes, David R.

    2014-01-01

    NAI-107 is a novel lantibiotic compound with potent in vitro activity against Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). The purpose of this study was to examine the activity of NAI-107 against S. aureus strains, including MRSA, in the neutropenic murine thigh infection model. Serum pharmacokinetics were determined and time-kill studies were performed following administration of single subcutaneous doses of 5, 20, and 80 mg/kg body weight. The dose f...

  19. Background model for a NaI (Tl) detector devoted to dark matter searches

    Science.gov (United States)

    Cebrián, S.; Cuesta, C.; Amaré, J.; Borjabad, S.; Fortuño, D.; García, E.; Ginestra, C.; Gómez, H.; Martínez, M.; Oliván, M. A.; Ortigoza, Y.; Ortiz de Solórzano, A.; Pobes, C.; Puimedón, J.; Sarsa, M. L.; Villar, J. A.

    2012-09-01

    NaI (Tl) is a well known high light yield scintillator. Very large crystals can be grown to be used in a wide range of applications. In particular, such large crystals are very good-performing detectors in the search for dark matter, where they have been used for a long time and reported first evidence of the presence of an annual modulation in the detection rate, compatible with that expected for a dark matter signal. In the frame of the ANAIS (Annual modulation with NaI Scintillators) dark matter search project, a large and long effort has been carried out in order to characterize the background of sodium iodide crystals. In this paper we present in detail our background model for a 9.6 kg NaI (Tl) detector taking data at the Canfranc Underground Laboratory (LSC): most of the contaminations contributing to the background have been precisely identified and quantified by different complementary techniques such as HPGe spectrometry, discrimination of alpha particles vs. beta/gamma background by Pulse Shape Analysis (PSA) and coincidence techniques; then, Monte Carlo (MC) simulations using Geant4 package have been carried out for the different contributions. Only a few assumptions are required in order to explain most of the measured background at high energy, supporting the goodness of the proposed model for the present ANAIS prototype whose background is dominated by 40K bulk contamination. At low energy, some non-explained background components are still present and additional work is required to improve background understanding, but some plausible background sources contributing in this range have been studied in this work. Prospects of achievable backgrounds, at low and high energy, for the ANAIS-upgraded detectors, relying on the proposed background model conveniently scaled, are also presented.

  20. Real-time control of electronic motion: Application to NaI

    DEFF Research Database (Denmark)

    Grønager, Michael; Henriksen, Niels Engholm

    1998-01-01

    + + I- depends on the electron distribution (i.e., where the electron "sits") prior to the time where the bond is broken by a subpicosecond half-cycle unipolar electromagnetic pulse. Thus we control, in real time, which nucleus one of the valence electrons will follow after the bond is broken. (C) 1998......We study theoretically the electronic and nuclear dynamics in NaI. After a femtosecond pulse has prepared a wave packet in the first excited state, we consider the adiabatic and the nonadiabatic electronic dynamics and demonstrate explicitly that a nonstationary electron is created in Na...

  1. NaI (Tl) calorimeter calibration and simulation for Coulomb sum rule experiment in Hall-A at Jefferson Lab

    Energy Technology Data Exchange (ETDEWEB)

    Yan, Xinhu; Chen, Jian-Ping; Choi, Seonho; Lu, Hai-Jiang; Meziani, Zein-Eddine; Oh, Yoomin; Sulkosky, Vince; Ye, Yunxiu; Yao, Huan

    2011-05-01

    A precision measurment of inclusive electron scattering cross sections is carried out at Jefferson Lab in the quasi-elastic region for 4He, 12C, 56Fe and 208Pb targets. The longitudinal (RL) and transverse (RT) response functions of the nucleon need to be extracted precisely in the momentum transfer range 0.55 GeV/c ≤ |q| ≤ 1.0 GeV/c. To achieve the above goal, a NaI (Tl) calorimeter is used to distinguish good electrons from background, including pions and low energy electrons rescattered from the walls of the spectrometer magnets. Due to a large set of kinematics and changes in HV settings, a number of calibrations are performed for the NaI (Tl) detector. Corrections for a few blocks of NaI (Tl) with bad or no signal are applied. The resolution of the NaI (Tl) detector after calibration reached ɤE/√E ≈ 3% at E = 1 GeV. The performance of the NaI (Tl) detector is compared with a simulation.

  2. Thyroid screening of members of the public for iodine isotopes with portable NaI detectors

    International Nuclear Information System (INIS)

    In the case of an accident in a nuclear power plant with radionuclide releases to the environment, members of the public with possible internal contamination with radioactive isotopes of iodine should be screened to identify cases where a more detailed evaluation and medical follow-up is necessary. Screening of large numbers of the public can be performed with a quick measuring protocol using hand held unshielded NaI based detectors giving results in cps. The screening geometry was simulated using the Monte Carlo code Visual Monte Carlo. The results show that for a geometry with the NaI detector near the skin in front of the thyroid, the interference of the gamma radiation coming from other radionuclides released in the accident either deposited in the lung or in the whole body is sufficiently low to allow thyroid screening criteria to be established. The screening criteria were developed using 5, 10 and 15 year old hybrid phantoms and for the adult male based on the ICRP reference voxel phantom. (author)

  3. Multiple high-temperature transitions driven by dynamical structures in NaI

    Science.gov (United States)

    Manley, M. E.; Jeffries, J. R.; Lee, H.; Butch, N. P.; Zabalegui, A.; Abernathy, D. L.

    2014-06-01

    Multiple, consecutive high-temperature transitions in NaI involving dynamical order and/or localization in the energy-momentum spectrum but not in the average crystal structure are revealed by lattice dynamics, x-ray lattice spacing, and heat-capacity measurements. Distinctive energy-momentum patterns and lattice distortions indicate dynamical structures forming within randomly stacked planes, rather than the isolated point-defect-like intrinsic localized modes predicted. Transition entropies are accounted for by vibrational entropy changes, and the transition enthalpies are explained by the strain energy of forming stacking-fault-like planar distortions deduced from x-ray-diffraction peak shifts. The vibrational entropy of the dynamical structures stabilizes surrounding elastic distortions.

  4. Vera Poska-Grünthal - Eesti riigimehe tütar ja naisõiguslane / Kairi Ilison

    Index Scriptorium Estoniae

    Ilison, Kairi

    2010-01-01

    Riigivanema ja poliitiku Jaan Poska tütrest Vera Poska-Grünthalist (1898-1986), kes oli tuntud ajakirjanik ja naisõiguslane. Põgenes Teise maailmasõja ajal Rootsi ja asutas seal 1952. aastal ajakirja "Triinu", mis lõpetas ilmumise Torontos 1995. aastal, olles Eesti naiste ühendaja vabas maailmas

  5. Draft Genome Sequence of the Microbispora sp. Strain ATCC-PTA-5024, Producing the Lantibiotic NAI-107

    DEFF Research Database (Denmark)

    Sosio, M.; Gallo, G.; Pozzi, R.;

    2014-01-01

    We report the draft genome sequence of Microbispora sp. strain ATCC-PTA-5024, a soil isolate that produces NAI-107, a new lantibiotic with the potential to treat life-threatening infections caused by multidrug-resistant Gram-positive pathogens. The draft genome of strain Microbispora sp. ATCC...

  6. A Development of the Decision Support System for the Optimum Cogeneration Planning Under the Constraints of the Economic Efficiency and Partial Load Properties for the Commercial Building

    Science.gov (United States)

    Ishida, Takeshi; Mori, Shunsuke; Douwaki, Kiyoshi

    It is said that the cogeneration system (CGS) is an effective countermeasure for energy saving and CO2 reduction in the commercial building. However, the economic, energy and environmental efficiency of CGS varies so much depending on the annual load factor and the demand patterns of heat and electric power. In this research, we develop a model to evaluate the optimum decision on the capacity and the operating pattern of CGS by nonlinear mixing integer programming in order to formulate the partial load properties of CGS in practical operation, since the existing optimization models without partial load properties could have generated too optimistic evaluation of CGS. The compatibility between the economy and the energy saving of the CGS implementation planning has been the problem. Our system proposes a new measure to develop an optimal energy saving system under the constraint of economic efficiency as the investment recovery years of CGS for the commercial building. Our system has been applied to the case of hotel building. The results show us that the optimum CGS capacity planning generated by our model provides more effective solution compared to the existing simulation tools used generally without optimization capability.

  7. Understanding and managing health and environmental risks of CIS, CGS, and CdTe photovoltaic module production and use: A workshop

    Energy Technology Data Exchange (ETDEWEB)

    Moskowitz, P.D.; Zweibel, K.; DePhillips, M.P. [eds.

    1994-04-28

    Environmental, health and safety (EH&S) risks presented by CIS, CGS and CdTe photovoltaic module production, use and decommissioning have been reviewed and discussed by several authors. Several EH&S concerns exit. The estimated EH&S risks are based on extrapolations of toxicity, environmental mobility, and bioavailability data for other related inorganic compounds. Sparse data, however, are available for CIS, CGS or CdTe. In response to the increased interest in these materials, Brookhaven National Laboratory (BNL) has been engaged in a cooperative research program with the National Renewable Energy Laboratory (NREL), the Fraunhofer Institute for Solid State Technology (IFT), the Institute of Ecotoxicity of the GSF Forschungszentrum fair Umwelt und Gesundheit, and the National Institute of Environmental Health Sciences (NIEHS) to develop fundamental toxicological and environmental data for these three compounds. This workshop report describes the results of these studies and describes their potential implications with respect to the EH&S risks presented by CIS, CGS, and CdTe module production, use and decommissioning.

  8. [Generation of response functions of a NaI detector by using an interpolation technic].

    Science.gov (United States)

    Tominaga, S

    1983-03-01

    A computer method is developed for generating response functions of a NaI detector to monoenergetic gamma-rays. The method is based on an interpolation between measured response curves by a detector. The computer programs are constructed for Heath's response spectral library. The principle of the basic mathematics used for interpolation, which was reported previously by the author, et al., is that response curves can be decomposed into a linear combination of intrinsic-component patterns, and thereby the interpolation of curves is reduced to a simple interpolation of weighting coefficients needed to combine the component patterns. This technique has some advantages of data compression, reduction in computation time, and stability of the solution, in comparison with the usual functional fitting method. The processing method of segmentation of a spectrum is devised to generate useful and precise response curves. A spectral curve, obtained for each gamma-ray source, is divided into some regions defined by the physical processes, such as the photopeak area, the Compton continuum area, the backscatter peak area, and so on. Each segment curve then is processed separately for interpolation. Lastly the estimated curves to the respective areas are connected on one channel scale. The generation programs are explained briefly. It is shown that the generated curve represents the overall shape of a response spectrum including not only its photopeak but also the corresponding Compton area, with a sufficient accuracy. PMID:6688137

  9. The Lantibiotic NAI-107 Efficiently Rescues Drosophila melanogaster from Infection with Methicillin-Resistant Staphylococcus aureus USA300

    Science.gov (United States)

    Mojsoska, Biljana; Cruz, João C. S.; Donadio, Stefano; Jenssen, Håvard

    2016-01-01

    We used the fruit fly Drosophila melanogaster as a cost-effective in vivo model to evaluate the efficacy of novel antibacterial peptides and peptoids for treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections. A panel of peptides with known antibacterial activity in vitro and/or in vivo was tested in Drosophila. Although most peptides and peptoids that were effective in vitro failed to rescue lethal effects of S. aureus infections in vivo, we found that two lantibiotics, nisin and NAI-107, rescued adult flies from fatal infections. Furthermore, NAI-107 rescued mortality of infection with the MRSA strain USA300 with an efficacy equivalent to that of vancomycin, a widely applied antibiotic for the treatment of serious MRSA infections. These results establish Drosophila as a useful model for in vivo drug evaluation of antibacterial peptides. PMID:27381394

  10. Monte Carlo Simulation ofin situ Gamma-Spectra Recorded by NaI (Tl) Detector in the Marine Environment

    Institute of Scientific and Technical Information of China (English)

    WANG Yiming; ZHANG Yingying; WU Ning; WU Bingwei; LIU Yan; CAO Xuan; WANG Qian

    2015-01-01

    To develop a NaI (Tl) detector for in situ radioactivity monitoring in the marine environment and enhance the confidence of the probability of the gamma-spectrum analysis, Monte Carlo simulations using the Monte Carlo N-Particle ( MNCP ) code were performed to provide the response spectra of some interested radionuclides and the background spectra originating from the natural radionuclides in seawater recorded by a NaI (Tl) detector. A newly developed 75mm×75mm NaI (Tl) detector was calibrated using four reference radioactive sources137Cs,60Co,40K and54Mn in the laboratory before the field measurements in seawater. A simulation model was established for the detector immersed in seawater. The simulated spectra were all broadened with Gaussian pulses to reflect the statistical fluctuations and electrical noise in the real measurement. The simulated spectra show that the single-energy photons into the detector are mostly scattering low-energy photons and the high background in the low energy region mainly originates from the Compton effect of the high energyγ-rays of natural radionuclides in seawater. The simulated background spectrum was compared with the experimental one recorded in field measurement and they seem to be in good agreement. The simulation method and spectra can be used for the accurate analysis of the filed measurement results of low concentration radioactivity in seawater.

  11. Evaluation the nonlinear response function of a 3x3 in NaI scintillation detector for PGNAA applications

    International Nuclear Information System (INIS)

    Response functions of the 3x3 in NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard γ-ray sources and prompt γ-rays from pure element samples to check their accuracy. Prompt γ-rays from pure element samples were used for this determination in the range from 1.942 to 10.829 MeV by use of 241Am-Be neutron source and γ-rays from radioisotope sources were used in the range from 0.081 to 4.438 MeV. Through the precise modeling of the detector structure, the agreement between both results has been improved. A surprising result is that in the PGNAA method the agreement between the MCNP simulation and experiment will be better by using a suitable neutron shield for NaI detector in order to prevent the activation of NaI (Tl) and a proper γ-shield to attenuate the high-rate 4.438 MeV γ-ray, 241Am-Be γ-ray component

  12. Evaluation the nonlinear response function of a 3 x 3 in NaI scintillation detector for PGNAA applications.

    Science.gov (United States)

    Miri Hakimabad, Hashem; Panjeh, Hamed; Vejdani-Noghreiyan, Alireza

    2007-08-01

    Response functions of the 3 x 3 in NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard gamma-ray sources and prompt gamma-rays from pure element samples to check their accuracy. Prompt gamma-rays from pure element samples were used for this determination in the range from 1.942 to 10.829 MeV by use of (241)Am-Be neutron source and gamma-rays from radioisotope sources were used in the range from 0.081 to 4.438 MeV. Through the precise modeling of the detector structure, the agreement between both results has been improved. A surprising result is that in the PGNAA method the agreement between the MCNP simulation and experiment will be better by using a suitable neutron shield for NaI detector in order to prevent the activation of NaI (Tl) and a proper gamma-shield to attenuate the high-rate 4.438 MeV gamma-ray, (241)Am-Be gamma-ray component. PMID:17485218

  13. Evaluation the nonlinear response function of a 3x3 in NaI scintillation detector for PGNAA applications

    Energy Technology Data Exchange (ETDEWEB)

    Miri Hakimabad, Hashem [Mashhad (Iran, Islamic Republic of); Panjeh, Hamed [Mashhad (Iran, Islamic Republic of)]. E-mail: panjeh@gmail.com; Vejdani-Noghreiyan, Alireza [Mashhad (Iran, Islamic Republic of)

    2007-08-15

    Response functions of the 3x3 in NaI detector, which is mainly used in PGNAA applications, have been calculated by using MCNP-4C code. Calculated results are compared with measured data by using standard {gamma}-ray sources and prompt {gamma}-rays from pure element samples to check their accuracy. Prompt {gamma}-rays from pure element samples were used for this determination in the range from 1.942 to 10.829 MeV by use of {sup 241}Am-Be neutron source and {gamma}-rays from radioisotope sources were used in the range from 0.081 to 4.438 MeV. Through the precise modeling of the detector structure, the agreement between both results has been improved. A surprising result is that in the PGNAA method the agreement between the MCNP simulation and experiment will be better by using a suitable neutron shield for NaI detector in order to prevent the activation of NaI (Tl) and a proper {gamma}-shield to attenuate the high-rate 4.438 MeV {gamma}-ray, {sup 241}Am-Be {gamma}-ray component.

  14. Derivation of specific conditions with Comprehensive Groebner Systems

    OpenAIRE

    Nabeshima, Katsusuke; Yoshida, Hiroshi

    2010-01-01

    Here we present an efficient calculation of comprehensive Groebner systems to derive specific conditions for neural circuits as well as electric circuits. Comprehensive Groebner systems (CGS) have been applied to problems with a small number of parameters such as the automatic geometric theorem proving and the inverse kinematics problem of a robot arm. In CGS, however, a larger number of parameters make its calculation less tractable. Therefore, we take `not-equal' conditions into account dur...

  15. A led system to control the gain stability of NAI detectors

    International Nuclear Information System (INIS)

    An on line led pulser is proposed to control the overall gain (optical contacts, photomultipliers, cables and electric circuits) of a scintillator telescope. Corrections to long term gain fluctuations are discussed

  16. Energy-saving effect of a residential polymer electrolyte fuel cell cogeneration system combined with a plug-in hybrid electric vehicle

    International Nuclear Information System (INIS)

    Highlights: • Combined use of PEFC-CGS and PHEV is focused on for energy savings. • Optimal operational planning considering daily start–stop operation is modeled. • Charging PHEV with PEFC-CGS increases electric capacity factor of PEFC-CGS. • Combined use has higher energy-saving effect than their separate use. • Combined use synergistically saves energies in residential and transport sectors. - Abstract: The energy-saving effect of a residential polymer electrolyte fuel cell cogeneration system (PEFC-CGS) that adopts a daily start–stop operation with no reverse power flow, combined with a plug-in hybrid electric vehicle (PHEV) is analyzed by optimal operational planning model based on mixed-integer linear programming. This combined use aims to increase the electric capacity factor of the PEFC-CGS by charging the PHEV using the PEFC-CGS output late at night, and targets the application in regions where the reverse power flow from residential cogeneration systems to commercial electric power systems is not permitted, like in Japan. First, the optimal operational planning model that incorporates the daily start–stop operation of the PEFC-CGS is developed. The energy-saving effect of the combined use of the PEFC-CGS and PHEV is then analyzed on the basis of observations of the optimal operation patterns for a 0.75-kWe PEFC-CGS, a simulated energy demand with a sampling time of 5 min, and various daily running distances of the PHEV. The results show that the combined use of the PEFC-CGS and PHEV increases the electric capacity factor and hot water supply rate of the PEFC-CGS and saves more energy in comparison with their separate use in which the PEFC-CGS is used but the PHEV is charged only using purchased electric power. Consequently, this feasibility study reveals that the combined use of the PEFC-CGS and PHEV provides the synergistic effect on energy savings in the residential and transport sectors

  17. Elucidating the molecular physiology of lantibiotic NAI-107 production in Microbispora ATCC-PTA-5024

    DEFF Research Database (Denmark)

    Gallo, Giuseppe; Renzone, Giovanni; Palazzotto, Emilia;

    2016-01-01

    -dimensional difference in gel electrophoresis, mass spectrometry and gene ontology approaches. Microbispora ATCC-PTA-5024 cultivations in a complex medium were characterized by stages of biomass accumulation (A) followed by biomass yield decline (D). NAI-107 production started at 90 h (A stage), reached a maximum at 140...... differentiation of a TetR-like regulator, originally identified in this study, was confirmed by the construction of an over-expressing strain. Finally, the possible role of cellular response to membrane stability alterations and of multi-drug resistance ABC transporters as additional self-resistance mechanisms...

  18. Standardization of gamma sources using NaI (Tl) and LaBr3 (Ce) detectors: measurements and simulations

    International Nuclear Information System (INIS)

    In the present work, we made detailed studies on activity of a single gamma emitter 137Cs for different values of source-detector separation. The studies were made using NaI (Tl) and LaBr3 (Ce) detectors. Monte Carlo techniques were employed to estimate the intrinsic photo-peak efficiencies corresponding to 662 keV gamma rays. We have also made activity measurements on a double gamma emitter 60Co using sum-peak method. In both cases, calibrated sources were used and the measured results were compared with the activities certified by the manufacturer (Board of Radiation and Isotope Technology, Govt. of India)

  19. Molecular dynamics of polarizable point dipole models for molten NaI. Comparison with first principles simulations

    Directory of Open Access Journals (Sweden)

    Trullàs J.

    2011-05-01

    Full Text Available Molecular dynamics simulations of molten NaI at 995 K have been carried out using polarizable ion models based on rigid ion pair potentials to which the anion induced dipole polarization is added. The polarization is added in such a way that point dipoles are induced on the anions by both local electric field and deformation short-range damping interactions that oppose the electrically induced dipole moments. The structure and self-diffusion results are compared with those obtained by Galamba and Costa Cabral using first principles Hellmann-Feynman molecular dynamics simulations and using classical molecular dynamics of a shell model which allows only the iodide polarization

  20. Study of environmental natural gamma radiation dose and activity of uranium-238, thorium-232 using NaI (Tl) scintillation detector

    International Nuclear Information System (INIS)

    Exposure to ionizing radiation from natural sources is a continuous and unavoidable feature of life-systems on the earth. The environmental effective gamma radiation dose from terrestrial and cosmic radiation at height one foot above the earth's surface in open atmosphere has been measured at twenty different places in Sindhudurg district of Maharashtra state by using 2x2 NaI (Tl) scintillation detector. The activity of 238U and 232Th has been measured using gamma ray spectroscopy. The effective gamma radiation dose at different locations varies between, 0.286 to 0.804 mS/y, with an average value 0.512 mSv/y. The 238U activity varies from 0.466 KBq/m2 to 1.133 KBq/m2 with mean value of 0.684 KBq/m2. The 232Th activity varies from 0.552 KBq/m2 to 1.267 KBq/m2 with mean 0.8682 KBq/m2. The 238U to 232Th activity ratio varies from 0.494 to 1.47 with mean 0.898. (author)

  1. A composite step conjugate gradients squared algorithm for solving nonsymmetric linear systems

    Science.gov (United States)

    Chan, Tony; Szeto, Tedd

    1994-03-01

    We propose a new and more stable variant of the CGS method [27] for solving nonsymmetric linear systems. The method is based on squaring the Composite Step BCG method, introduced recently by Bank and Chan [1,2], which itself is a stabilized variant of BCG in that it skips over steps for which the BCG iterate is not defined and causes one kind of breakdown in BCG. By doing this, we obtain a method (Composite Step CGS or CSCGS) which not only handles the breakdowns described above, but does so with the advantages of CGS, namely, no multiplications by the transpose matrix and a faster convergence rate than BCG. Our strategy for deciding whether to skip a step does not involve any machine dependent parameters and is designed to skip near breakdowns as well as produce smoother iterates. Numerical experiments show that the new method does produce improved performance over CGS on practical problems.

  2. Semiclassical modelling of finite-pulse effects on non-adiabatic photodynamics via initial condition filtering: The predissociation of NaI as a test case

    Energy Technology Data Exchange (ETDEWEB)

    Martínez-Mesa, Aliezer [Departmento de Física Teórica, Universidad de la Habana, San Lázaro y L, La Habana 10400 (Cuba); Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm (Germany); Saalfrank, Peter [Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm (Germany)

    2015-05-21

    Femtosecond-laser pulse driven non-adiabatic spectroscopy and dynamics in molecular and condensed phase systems continue to be a challenge for theoretical modelling. One of the main obstacles is the “curse of dimensionality” encountered in non-adiabatic, exact wavepacket propagation. A possible route towards treating complex molecular systems is via semiclassical surface-hopping schemes, in particular if they account not only for non-adiabatic post-excitation dynamics but also for the initial optical excitation. One such approach, based on initial condition filtering, will be put forward in what follows. As a simple test case which can be compared with exact wavepacket dynamics, we investigate the influence of the different parameters determining the shape of a laser pulse (e.g., its finite width and a possible chirp) on the predissociation dynamics of a NaI molecule, upon photoexcitation of the A(0{sup +}) state. The finite-pulse effects are mapped into the initial conditions for semiclassical surface-hopping simulations. The simulated surface-hopping diabatic populations are in qualitative agreement with the quantum mechanical results, especially concerning the subpicosend photoinduced dynamics, the main deviations being the relative delay of the non-adiabatic transitions in the semiclassical picture. Likewise, these differences in the time-dependent electronic populations calculated via the semiclassical and the quantum methods are found to have a mild influence on the overall probability density distribution. As a result, the branching ratios between the bound and the dissociative reaction channels and the time-evolution of the molecular wavepacket predicted by the semiclassical method agree with those computed using quantum wavepacket propagation. Implications for more challenging molecular systems are given.

  3. The anxiogenic action of RO 5-4864 in the social interaction test: effect of chlordiazepoxide, RO 15-1788 and CGS 8216.

    Science.gov (United States)

    File, S E; Pellow, S

    1985-01-01

    RO 5-4864 (20 mg/kg), a benzodiazepine with high affinity for peripheral-type benzodiazepine binding sites in rat kidney and brain, but not for the "classical" CNS sites, reduced the time spent by pairs of rats in active social interaction, without reducing locomotor activity, possibly reflecting an anxiogenic action. This anxiogenic effect was not reversed by chlordiazepoxide (5 or 10 mg/kg) given acutely, but was reversed by chlordiazepoxide (5 mg/kg) given for 5 days prior to testing. RO 15-1788 (10 mg/kg), a drug that antagonises several effects of benzodiazepines but has little affinity for peripheral-type sites, had no action on the reduction in social interaction induced by RO 5-4864. However, CGS 8216 (10 mg/kg) which also antagonises the effects of benzodiazepines and has little affinity for RO 5-4864 recognition sites, significantly enhanced the reduction in social interaction caused by RO 5-4864, and the combination produced a significant decrease in locomotor activity. These results are discussed in terms of possible sites of action of RO 5-4864 on the GABA-benzodiazepine receptor complex.

  4. Radiative transfer modeling of the enigmatic scattering polarization in the solar NaI D1 line

    CERN Document Server

    Belluzzi, Luca; Degl'Innocenti, Egidio Landi

    2015-01-01

    The modeling of the peculiar scattering polarization signals observed in some diagnostically important solar resonance lines requires the consideration of the detailed spectral structure of the incident radiation field as well as the possibility of ground level polarization, along with the atom's hyperfine structure and quantum interference between hyperfine F-levels pertaining either to the same fine structure J-level, or to different J-levels of the same term. Here we present a theoretical and numerical approach suitable for solving this complex non-LTE radiative transfer problem. This approach is based on the density-matrix metalevel theory (where each level is viewed as a continuous distribution of sublevels) and on accurate formal solvers of the transfer equations and efficient iterative methods. We show an application to the D-lines of NaI, with emphasis on the enigmatic D1 line, pointing out the observable signatures of the various physical mechanisms considered. We demonstrate that the linear polariza...

  5. 77 FR 18791 - Proposed Information Collection; Comment Request; NIST Associates Information System

    Science.gov (United States)

    2012-03-28

    ... National Institute of Standards and Technology Proposed Information Collection; Comment Request; NIST Associates Information System AGENCY: National Institute of Standards and Technology (NIST). ACTION: Notice... Associates Information System (NAIS) information collection instrument(s) are completed by incoming NAs....

  6. Structure and stability of Li(I) and Na(I) - Carboxylate, sulfate and phosphate complexes

    NARCIS (Netherlands)

    Remko, Milan; Van Duijnen, Piet Th.; von der Lieth, Claus-Wilhelm

    2007-01-01

    DFT was used to investigate molecular structure and metal affinity of the systems CH3CO2M (1), CH3-O-SO3M (2), CH3-NH-SO3M (3), (CH3-O-PO3M)(-) (4) CH3-O-PO3M2 (5), CH3-O-(CH3)PO2M (6), and 1,4-DiOMe IdoA-2SM(2) (7; S-2(o) conformation) (M = Li+ and Na+), respectively. Interaction enthalpies, entrop

  7. Proceedings of GeoSask 2005 : The 58. Canadian Geotechnical Conference and 6. Joint CGS-IAH Groundwater Specialty Conference

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    The Canadian and international geotechnical community gathered at this conference to exchange information on recent research and development concerning all sectors of geotechnical engineering, applied geology and hydrogeology. The technical sessions addressed a wide range of geotechnical engineering issues such as soil mechanics and geodynamics; geoenvironmental issues associated with contaminant transport in landfills; hydrogeology issues such as aquifer properties, hydrogeochemistry, groundwater resources, hydrogeological mapping, contaminants and remediation; geosynthetics; geotechnical modelling; rock engineering; engineering geology; mining geotechnics; buried structures; unsaturated soils and aquitards. The presentations included several geotechnical case studies that focused on broad issues such as hydraulic properties of sedimentary rock aquifers, design criteria for geotextile filters used in agricultural drainage, the long term performance of containment systems, slope stability analysis of landfills, methane emissions from landfills, shear zones in weak rocks and tailings at oil sands operations. The conference featured approximately 200 presentations, of which 17 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  8. Deconvolution of gamma-ray spectra obtained with NAI(Tl) detector in a water tank.

    Science.gov (United States)

    Rahman, M Sohelur; Cho, Gyuseong; Kang, Bo-Sun

    2009-07-01

    Maximum-likelihood fitting by the expectation maximization deconvolution method is presented to analyse gamma-ray spectra recorded using an NaI(Tl) detector for a water monitoring system. The applicability of the method was tested by deconvolving measured spectra taken using an industry standard 3'' x 3'' cylindrical NaI(Tl) detector in a model water tank with several calibration sources. The results show significant removal of the Compton continuum counts and efficient transfer of the counts into the corresponding photo-peaks. The peak-to-total count ratio and the number of counts in the photo-peaks in the deconvolved spectra increased approximately 4.67 and 5.29 times, respectively, compared with those of measured spectra taken using an NaI(Tl) scintillation detector in the case of (137)Cs. PMID:19502359

  9. Proceedings of the 56. annual Canadian Geotechnical and 4. joint IAH-CNC and CGS groundwater specialty conference : Two rivers

    Energy Technology Data Exchange (ETDEWEB)

    Kenyon, R. (ed.) [KGS Group, Winnipeg, MB (Canada)

    2003-07-01

    This conference provided a forum for more than 400 participants to exchange information on the latest advances and new technologies regarding geotechnical aspects of hydrogeology and groundwater recharge with particular emphasis on the Two Rivers theme, examining the history of the founding of the City of Winnipeg at the confluence of the Red and Assiniboine Rivers. There were 47 technical sessions with more than 200 papers presented. The sessions of the conference were entitled as follows: containment hydrogeology I, Manitoba hydrogeology I and II, Prairie hydrogeology I-III, dams and water retaining structures I and II, geoenvironmental engineering I and II, shallow foundations, earth reinforcement, use of groundwater in heating/cooling systems, permafrost, rock mechanics, hydraulics, hydrogeology case studies, underground nuclear waste storage I and II, soil mechanics I and II, hydraulics and bioengineering, contaminant hydrogeology II, groundwater resource evaluation I and II, radioactive waste management I-III(IAH), site characterization, slope stability, reinforced earth, geoenvironmental, agricultural impact on groundwater, unsaturated soils, mining, NAGS student competition, modeling and geostatistics, deep foundations, site characterization and slope stability, networking session for women, contaminant hydrogeology III, groundwater management and protection I and II, embankments and retaining walls, transportation applications, and mining and rock mechanics. Several short courses and technical tours were added to the technical program. A total of 27 papers have been indexed separately for inclusion in the database. refs., tabs., figs.

  10. Assessment of the Na/I symporter as a reporter gene to visualize oncolytic adenovirus propagation in peritoneal tumours

    Energy Technology Data Exchange (ETDEWEB)

    Merron, Andrew; McNeish, Iain A. [Queen Mary' s School of Medicine and Dentistry, Centre for Molecular Oncology, Institute of Cancer, London (United Kingdom); Baril, Patrick; Tran, Lucile; Vassaux, Georges [CHU Hotel Dieu, INSERM, Nantes (France); CHU de Nantes, Institut des Maladies de l' Appareil Digestif, Nantes (France); Martin-Duque, Pilar [Instituto Aragones de Ciencias de la Salud, Zaragoza (Spain); Vieja, Antonio de la [Instituto de Investigaciones Biomedicas, Madrid (Spain); Briat, Arnaud [INSERM U877, Grenoble (France); Harrington, Kevin J. [Chester Beatty Laboratories, Institute of Cancer Research, London (United Kingdom)

    2010-07-15

    In vivo imaging of the spread of oncolytic viruses using the Na/I symporter (NIS) has been proposed. Here, we assessed whether the presence of NIS in the viral genome affects the therapeutic efficacy of the oncolytic adenovirus dl922-947 following intraperitoneal administration, in a mouse model of peritoneal ovarian carcinoma. We generated AdAM7, a dl922-947 oncolytic adenovirus encoding the NIS coding sequence. Iodide uptake, NIS expression, infectivity and cell-killing activity of AdAM7, as well as that of relevant controls, were determined in vitro. In vivo, the propagation of this virus in the peritoneal cavity of tumour-bearing mice was determined using SPECT/CT imaging and its therapeutic efficacy was evaluated. In vitro infection of ovarian carcinoma IGROV-1 cells with ADAM7 led to functional expression of NIS. However, the insertion of NIS into the viral genome resulted in a loss of efficacy of the virus in terms of replication and cytotoxicity. In vivo, on SPECT/CT imaging AdAM7 was only detectable in the peritoneal cavity of animals bearing peritoneal ovarian tumours for up to 5 days after intraperitoneal administration. Therapeutic experiments in vivo demonstrated that AdAM7 is as potent as its NIS-negative counterpart. This study demonstrated that despite the detrimental effect observed in vitro, insertion of the reporter gene NIS in an oncolytic adenovirus did not affect its therapeutic efficacy in vivo. We conclude that NIS is a highly relevant reporter gene to monitor the fate of oncolytic adenovectors in live subjects. (orig.)

  11. Temperature monitoring of retained coal pillar. Tanso nai ondo no Shuchu kanshi

    Energy Technology Data Exchange (ETDEWEB)

    Sagisaka, M.; Noda, K.; Nabeya, H. (National Research Inst. for Polution and Resources, Tsukuba (Japan))

    1990-09-25

    With the objective to accumulate software like technologies concerning measurement of temperature in a coal seam, a retained coal pillar, which is deemed to be combustible spontaneously due to the growth of cracks caused by the rock pressure, was selected as the site of the experiment, a temperature sensor of high relative accuracy was introduced into there and centralized monitoring was conducted outside the pit using a transmission system matching its detecting accuracy. Information was obtained on temperature measuring techniques and the ways to treat its measured data by sampling and analyzing gases at the same places periodically at the same time of the above monitoring. This article is a report thereon. In other words, it was found that among the index gas ratios obtained by gas analyses for early detection of spontaneous combustion currently used at many coal mines, there was a correlation between CO {sub 2}/(BD+C),(BD: black dump, C: conbustible gas), which was suitable to this site, and the temperature inside the coal seam. From these matters, hindering of the oxidation progress in a low temperature range could be guessed by continued precision measuring of specified locations and the basic data was obtained on technologies of temperature monitoring in a coal seam. 11 refs., 9 figs., 2 tabs.

  12. Classifier-Guided Sampling for Complex Energy System Optimization

    Energy Technology Data Exchange (ETDEWEB)

    Backlund, Peter B. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Eddy, John P. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    This report documents the results of a Laboratory Directed Research and Development (LDRD) effort enti tled "Classifier - Guided Sampling for Complex Energy System Optimization" that was conducted during FY 2014 and FY 2015. The goal of this proj ect was to develop, implement, and test major improvements to the classifier - guided sampling (CGS) algorithm. CGS is type of evolutionary algorithm for perform ing search and optimization over a set of discrete design variables in the face of one or more objective functions. E xisting evolutionary algorithms, such as genetic algorithms , may require a large number of o bjecti ve function evaluations to identify optimal or near - optimal solutions . Reducing the number of evaluations can result in significant time savings, especially if the objective function is computationally expensive. CGS reduce s the evaluation count by us ing a Bayesian network classifier to filter out non - promising candidate designs , prior to evaluation, based on their posterior probabilit ies . In this project, b oth the single - objective and multi - objective version s of the CGS are developed and tested on a set of benchm ark problems. As a domain - specific case study, CGS is used to design a microgrid for use in islanded mode during an extended bulk power grid outage.

  13. Performance of photomultiplier tubes and sodium iodide scintillation detector systems

    Science.gov (United States)

    Meegan, C. A.

    1981-01-01

    The performance of photomultiplier tubes (PMT's) and scintillation detector systems incorporating 50.8 by 1.27 cm NaI (T l) crystals was investigated to determine the characteristics of the photomultiplier tubes and optimize the detector geometry for the Burst and Transient Source Experiment on the Gamma Ray Observatory. Background information on performance characteristics of PMT's and NaI (T l) detectors is provided, procedures for measurement of relevant parameters are specified, and results of these measurements are presented.

  14. Intercomparison of environmental gamma doses measured with A NaI (Tl) survey meter and thermoluminescent dosimeters (TLDs) in the Poonch division of Azad Kashmir, Pakistan.

    Science.gov (United States)

    Rafique, Muhammad; Kearfott, Kimberlee J; Ahmad, Khalil; Akhter, Jabeen; Khan, Abdul Razzaq; Saeed, Raja Azhar; Rahman, Saeed Ur; Matiullah; Rajput, Muhammad Usman

    2014-12-01

    This study presents the intercomparison of the outdoor environmental gamma dose rates measured using a NaI (Tl) based survey meter along with thermoluminescent dosimeters (TLDs) and estimation of excess lifetime cancer risk (ELCR), for the inhabitants of Poonch division of the Azad Kashmir, Pakistan. CaF2: Dy (TLD-200) card dosimeters were installed at height of 1 m from ground at fifteen different locations covering the entire Poonch division comprising of three districts. During three distinct two month time periods within the six month study period, all the installed dosimeters were exposed to outdoor environmental gamma radiations, retrieved and read out at Radiation Dosimetry Laboratory, Health Physics Division, PINSTECH laboratory, Islamabad. The ambient outdoor gamma dose rate measurements were also taken with NaI (Tl) based portable radiometric instrument at 1 m above the ground. To estimate the annual gamma doses, NaI (Tl) based survey data were used for one complete year following the deployment of the dosimeters. The mean annual gamma dose rates measured by TLDs and survey meter were found as 1.47±0.10 and 0.862±0.003 mGy/y respectively. Taking into account a 29% outdoor occupancy factor, the annual average effective dose rate for individuals was estimated as 0.298±0.04 and 0.175±0.03 mSv/y by TLDs and survey meter, respectively. For outdoor exposure, the ELCR was calculated from the TLD and survey meter measurements. The environmental outdoor average annual effective dose obtained in present study are less than the estimated world average terrestrial and cosmic gamma ray dose rate of 0.9 mSv/y reported in UNSCEAR 2000. The possible origins of gamma doses in the area and incompatibilities of results obtained from the two different measurement techniques are also discussed. PMID:25484014

  15. Improving the performance of 241Am-Be for PGNAA applications using a proper shielding for neutron source and the NaI detector

    OpenAIRE

    Panjeh Hamed; Hakimabad Hashem M.; Motavalli Lalle R.

    2010-01-01

    The gamma ray spectrum resolution from a 241Am-Be source-based prompt gamma ray activation analysis set-up has been observed to increase in the energy region of interest with enclosing the NaI detector in a proper neutron and gamma ray shield. We have investigated the tact that the peak resolution of prompt gamma rays in the region of interest from the set-up depends on the source activity to the great extent, size and kind of the detector and the geometry of the detector shield. In ord...

  16. Specific Activities and Radioactive Contour Maps of Natural (238U, 232Th, 226Ra and 40K ) and Anthropogenic (137Cs) Radionuclides in Beach Sand Samples Collected from Nai Yang Beach of Phuket Province After Tsunai Disaster

    International Nuclear Information System (INIS)

    Full text: Specific activities of natural (238U, 232Th, 226Ra and 40K) and artificial anthropogenic (137Cs) radionuclides in 50 beach sand samples collected from Nai Yang beach in Phuket province which was effected from 2004 tsunami disaster, have been studied and measured. Experimental results were obtained by using a high-purity germanium (HPGe) detector and gamma spectrometry analysis system and also evaluated by using the standard reference materials IAEA/RGU-1, IAEA/RGTh-1, KCL and SL-2 which were obtained from Department of Physics, Faculty of Science, Prince of Songkhla University Hat Yai Campus. Experimental set-up and measurements were operated and carried out at Nuclear and Material Physics Laboratory in Department of Physics, Faculty of Science, Thaksin University Songkhla Campus. It was found that, the beach sand specific activity ranges from 862.50 to 3,356.35 Bq/kg for 40K, 3.51- 28.58 Bq/kg for 226Ra, 10.15 to 30.22 Bq/kg for 232Th and 0.00 to 2.39 Bq/kg for 137Cs with mean values of 1,843.03 ± 152.49 Bq/kg, 14.88 ± 3.30 Bq/kg, 19.19 ± 2.80 Bq/kg and 0.14 ± 0.11 Bq/kg, respectively. Furthermore, the results were also used to evaluate the absorbed dose rates in air (D), the radium equivalent (Raeq), the external hazard index (Hex) and the annual effective dose rate (AED) in all beach area. Moreover, experimental results were also compared to the Office of Atoms for Peace (OAP) research data, Thailand and global radioactivity measurements and evaluation, the recommended values which were proposed by the Organization for Economic Cooperation and Development (OECD, 1979) and United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR, 1988, 1993, 2000). Specific activities of natural and artificial anthropogenic radionuclides in all of Nai Yang beach sand samples could be also used to create the radioactive contour maps

  17. Report on the GC-MBS method for correcting NaI spectra for transmission loss in hand-held instruments

    International Nuclear Information System (INIS)

    The goals of this project were (1) to develop a capability to study the scattered components in the NaI spectra of attenuated sources and (2) to evaluate the effectiveness of the gross count material basis set (GC-MBS) method in quantifying transmission losses from the shapes of measured NaI spectra. These goals are related, as the GC-MBS method involves a linear log-spectrum decomposition into MBS component spectra, and scattered gamma rays represent a significant nonlinear interference. Eventually, the authors hope to understand the effect of the scattered components on the MBS decomposition and to develop ways to correct for inaccuracies. As of this writing the authors have not reached that long-term objective, so the two halves of this project are treated here as separate topics, with a separate section for each. They have substantially achieved both of the project goals and are collecting additional data for two publications at the upcoming IEEE conference in Albuquerque, NM--one paper about their work on scattering and another on the GC-MBS method. This project report will contain preliminary portions of those two papers

  18. Comparison of calculated absolute full-energy peak efficiencies of CdTe and NaI detectors in the photon energy region of 15-2000 keV

    International Nuclear Information System (INIS)

    A comparison of the calculated absolute full-energy peak efficiencies of CdTe and NaI detectors, i.e. the ratio of the number of counts under the full-energy peak (FEP) to the number of photons at the same energy emitted by the source, is made for six different detectors and three source sizes. The CdTe and NaI detectors are assumed to be of equal volume. The calculations are performed in the photon energy region 15-2000 keV using water, muscle and blood as source media. (author)

  19. Evidence of consumers' willingness to pay for the national animal identification system of the United States

    Directory of Open Access Journals (Sweden)

    Moises A. Resende Filho

    2011-03-01

    Full Text Available With the United States National Animal Identification System (NAIS in place, consumers' concerns about Bovine Spongiform Encephalopathy (BSE are mitigated and, by inference, consumers will be willing to pay for the NAIS. We estimated twelve alternative specifications of the generalized almost ideal demand system for beef, pork, and poultry, including indexes of news coverage of BSE in the U.S. as proxies for consumers' risk perception on BSE. Using the preferred model, we constructed scenarios on the basis of hypothesized impacts of the NAIS on consumers' risk perception on BSE inmeat. We found that the impact of BSE on consumer demand for meat was in itself sufficient to cover previously estimated costs of implementing the NAIS.Com a implantação do sistema de rastreamento animal (NAIS dos EUA, as preocupações dos consumidores com respeito ao mal da vaca louca (BSE serão atenuadas e, por conseguinte, os consumidores estariam dispostos a pagar pelo NAIS. Foram estimadas doze especificações alternativas do sistema de equações de demanda generalizado quase ideal para as carnes bovina, suína e de frango, incorporando índices com o número de notícias sobre BSE nos EUA como proxies da percepção de risco dos consumidores. O modelo preferido serviu para construir cenários considerando impactos hipotéticos do NAIS sobre a percepção de risco dos consumidores. Conclui-se que o impacto da BSE sobre a demanda por carnes seria suficiente para cobrir estimativas prévias dos custos com a implantação do NAIS.

  20. 柰李细菌性黑斑病菌侵染过程研究%INFECTION PROCESS OF Xanthomonas arboricola pv. pruni ON NAI PLUM (Prunus salicina var. cordata )

    Institute of Scientific and Technical Information of China (English)

    戴良英; 高必达

    2001-01-01

    @@ The bacterial spot on Nai plum caused by Xanthomonas arboricola pv. pruni is an important disease in Hu nan Province, causing a considerable yield loss. Studies were carried out on this disease, such as field investiga tion on occurrence and development and integrated control. In this paper we report the fine structure study of the diseased tissues.

  1. Usability of a Wearable Camera System for Dementia Family Caregivers

    Directory of Open Access Journals (Sweden)

    Judith T. Matthews

    2015-01-01

    Full Text Available Health care providers typically rely on family caregivers (CG of persons with dementia (PWD to describe difficult behaviors manifested by their underlying disease. Although invaluable, such reports may be selective or biased during brief medical encounters. Our team explored the usability of a wearable camera system with 9 caregiving dyads (CGs: 3 males, 6 females, 67.00 ± 14.95 years; PWDs: 2 males, 7 females, 80.00 ± 3.81 years, MMSE 17.33 ± 8.86 who recorded 79 salient events over a combined total of 140 hours of data capture, from 3 to 7 days of wear per CG. Prior to using the system, CGs assessed its benefits to be worth the invasion of privacy; post-wear privacy concerns did not differ significantly. CGs rated the system easy to learn to use, although cumbersome and obtrusive. Few negative reactions by PWDs were reported or evident in resulting video. Our findings suggest that CGs can and will wear a camera system to reveal their daily caregiving challenges to health care providers.

  2. Usability of a Wearable Camera System for Dementia Family Caregivers

    Science.gov (United States)

    Matthews, Judith T.; Lingler, Jennifer H.; Campbell, Grace B.; Hunsaker, Amanda E.; Hu, Lu; Pires, Bernardo R.; Hebert, Martial; Schulz, Richard

    2015-01-01

    Health care providers typically rely on family caregivers (CG) of persons with dementia (PWD) to describe difficult behaviors manifested by their underlying disease. Although invaluable, such reports may be selective or biased during brief medical encounters. Our team explored the usability of a wearable camera system with 9 caregiving dyads (CGs: 3 males, 6 females, 67.00 ± 14.95 years; PWDs: 2 males, 7 females, 80.00 ± 3.81 years, MMSE 17.33 ± 8.86) who recorded 79 salient events over a combined total of 140 hours of data capture, from 3 to 7 days of wear per CG. Prior to using the system, CGs assessed its benefits to be worth the invasion of privacy; post-wear privacy concerns did not differ significantly. CGs rated the system easy to learn to use, although cumbersome and obtrusive. Few negative reactions by PWDs were reported or evident in resulting video. Our findings suggest that CGs can and will wear a camera system to reveal their daily caregiving challenges to health care providers. PMID:26288888

  3. Adenosine and the adenosine A2A receptor agonist, CGS21680, upregulate CD39 and CD73 expression through E2F-1 and CREB in regulatory T cells isolated from septic mice.

    Science.gov (United States)

    Bao, Rui; Shui, Xianqi; Hou, Jiong; Li, Jinbao; Deng, Xiaoming; Zhu, Xiaoyan; Yang, Tao

    2016-09-01

    The number of regulatory T cells (Treg cells) and the expression of ectonucleoside triphosphate diphosphohydrolase 1 (ENTPD1; also known as CD39) and 5'-ectonucleotidase (NT5E; also known as CD73) on the Treg cell surface are increased during sepsis. In this study, to determine the factors leading to the high expression of CD39 and CD73, and the regulation of the CD39/CD73/adenosine pathway in Treg cells under septic conditions, we constructed a mouse model of sepsis and separated the Treg cells using a flow cytometer. The Treg cells isolated from the peritoneal lavage and splenocytes of the mice were treated with adenosine or the specific adenosine A2A receptor agonist, CGS21680, and were transfected with specific siRNA targeting E2F transcription factor 1 (E2F-1) or cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB), which are predicted transcription regulatory factors of CD39 or CD73. The regulatory relationships among these factors were then determined by western blot analysis and dual-luciferase reporter assay. In addition, changes in adenosine metabolism were measured in the treated cells. The results revealed that adenosine and CGS21680 significantly upregulated CD39 and CD73 expression (PTreg cell surface during sepsis. Adenosine and its A2A receptor agonist served as the signal transducer factors of the CD39/CD73/adenosine pathway, accelerating adenosine generation. Our study may benefit further research on adenosine metabolism for the treatment of sepsis. PMID:27430240

  4. Specific activities and radioactive contour maps of natural and anthropogenic radionuclides in beach sand samples (Patong, Kamala, Kata, Karon and Nai Yang) after tsunami disaster in Phuket province, Thailand

    International Nuclear Information System (INIS)

    Specific activities of natural (40K, 226Ra and 232Th) and anthropogenic (137Cs) radionuclides in 155 beach sand samples collected from Patong, Kamala, Kata, Karon and Nai Yang beaches, which were affected by the 2004 tsunami disaster, in Phuket province, Thailand, have been studied and measured. Experimental results were obtained by using a high-purity germanium detector and gamma spectrometry analysis system. Gamma ray from radioactive standard sources Cesium-137 (137Cs), Cobalt-60 (60Co) and Barium-133 (133Ba) were used to calibrate the measurement system. KCl, two well-known (IAEA/RGU-1 and IAEA/RGTh-1) and IAEA/SL-2 reference materials obtained from the International Atomic Energy Agency were used to analyze and compute the 40K, 226Ra, 232Th and 137Cs specific activities in samples from five beaches. The measuring time of each sample is 10,800 s. It was found that the average specific activity of 40K in these areas (2459.14 ± 171.71 Bq/kg) was rather high. Furthermore, the results were also used to evaluate the absorbed dose rates in air (D), the radium equivalent (Raeq), the external hazard index (Hex) and the annual effective dose rate (AEDout) in all beach areas. Moreover, experimental results were compared with the Office of Atoms for Peace research data, Thailand as well as with global radioactivity measurements and evaluations. All of the calculated values (40K, 226Ra, 232Th and 137Cs) were also compared with the recommended values which were proposed by the Organization for Economic Cooperation and Development (Exposure to radiation from natural radioactivity in building materials, 1979) and United Nations Scientific Committee on the Effects of Atomic Radiation (Sources, effects and risk of ionizing radiation, 1988; Exposure from natural sources of radiation, 1993; Sources, effects and risk of ionizing radiation, 2000). The data can be also used to create the radioactive contour maps of the investigated area. (author)

  5. A formação de profissionais para a atenção integral à saúde do idoso: a experiência interdisciplinar do NAI - UNATI/UERJ Training professionals for delivering ingreated health care to the aged: the interdisciplinary experience of NAI - UNATI/UERJ

    Directory of Open Access Journals (Sweden)

    Luciana Branco da Motta

    2008-08-01

    Full Text Available A capacitação de profissionais para atuar na área de envelhecimento e saúde do idoso é uma das ações prioritárias da política nacional do idoso no Brasil, em função do acelerado envelhecimento populacional do país. O Núcleo de Atenção ao Idoso, serviço do Hospital Universitário Pedro Ernesto, vinculado à Universidade Aberta da Terceira Idade/UERJ, desenvolve programa de ensino nesta área, a partir da experiência assistencial, tendo como eixo a integralidade da atenção e o trabalho interdisciplinar. O programa inclui modalidades de ensino em nível de residência, especialização, treinamento profissional e estágio de graduação. A programação teórica inclui um curso de Introdução à Saúde do Idoso, comum às diversas áreas profissionais. A capacitação teórica e prática específica é coordenada pelos preceptores das respectivas áreas. As atividades práticas ocorrem em diferentes cenários, incluindo o acolhimento, a promoção da saúde, a atenção ambulatorial, a hospitalar e a de longa permanência. A interdisciplinaridade é um exercício contínuo que supõe abertura a estratégias inovadoras. A experiência representa uma contribuição à demanda social crescente de capacitação profissional em um modelo de atenção comprometido com princípios do SUS e com o cuidado integral.The training of professionals in the field of healthcare for the aged is one of the priorities of the national policy for the aged in Brazil due to the accelerated aging of the population. The Núcleo de Atenção ao Idoso (NAI, a unit of the Open University of the Third Age/UERJ (UNATI/UERJ develops an educational program in this field, based on practical care delivery with emphasis to inter-disciplinarity and teamwork. The program includes different training levels and modalities: Residency, Specialization, Professional Practice and Graduation. The program includes an introductory course in gerontology and geriatrics common

  6. Improving the performance of 241Am-Be for PGNAA applications using a proper shielding for neutron source and the NaI detector

    Directory of Open Access Journals (Sweden)

    Panjeh Hamed

    2010-01-01

    Full Text Available The gamma ray spectrum resolution from a 241Am-Be source-based prompt gamma ray activation analysis set-up has been observed to increase in the energy region of interest with enclosing the NaI detector in a proper neutron and gamma ray shield. We have investigated the tact that the peak resolution of prompt gamma rays in the region of interest from the set-up depends on the source activity to the great extent, size and kind of the detector and the geometry of the detector shield. In order to see the role of a detector shield, five kinds of the detector shield were used and finally the proper kind was introduced. Since the detector shield has an important contribution in the reduction of the undesirable and high rate gamma rays coming to the gamma ray detector, a good design of a proper shield enables the elimination of the unwanted events, such as a pulse pile-up. By improving the shielding design, discrete and distinguishable photoelectric peaks in the energy region of interest have been observed in the spectrum of prompt gamma rays.

  7. Actual Condition Evaluation of Cogeneration System in an Urbanized Hotel, and Study of the Optimal Operation to Minimize the CO2 Emission

    Science.gov (United States)

    Katsuta, Masafumi; Kaneko, Akira; Yamamoto, Toru

    Recently, there is an important subject to reduce of the CO2 emission discharged from a building. A cogeneration system (CGS) is one of the effective facilities to reduce of the CO2 emission, but prudent consideration is required in design and operation. Because it is necessary to be matching electric demand and heat demand in order to obtain the high efficiency. In this paper, it is evaluated the power generation efficiency and heat recovery one of CGS in the actual urbanized hotel as measurement result. In addition, the optimal operation analysis is carried out in order to minimize CO2 emission in the present facility.

  8. Post-flight Analysis and Design Improvement in Command Guidance System for a Short-range Surface-to-air Missile System

    Directory of Open Access Journals (Sweden)

    Ajit B. Chaudhary

    2005-07-01

    Full Text Available A short-range missile with command-to line-of-sight and three-beam guidance has been considered in this paper. The earlier command guidance system (CGS design shows unacceptablyhigh-low-frequency weave-mode oscillations, leading to high latax and body rate oscillations, even for benign, low-speed non-manoeuvring target engagements. For successful targetengagements with the three-beam guidance, missile is to be handed over from wide-to-medium receiver beam, and finally, from medium-to-the most accurate narrow receiver beam, depending on the angular error wrt line-of-sight as early as possible. Due to large amplitude oscillation in the earlier CGS design, the handing over of the missile to narrow receiver beam, and in many cases, to the medium receiver beam, itself could not take place, leading to failure of guidance. In this paper, the cause for this undesirable high magnitude weave-mode oscillation has been analysed in detail. After establishing this, saturation aspects of the earlier CGS design; a simple implementable CGS re-design was carried out to reduce this saturation aspect drastically for preserving almost full-phase advance effects of the linear new analogue compensators designed to give the required stability margins of guidance loop.

  9. Free energetics of carbon nanotube association in aqueous inorganic NaI salt solutions: Temperature effects using all-atom molecular dynamics simulations.

    Science.gov (United States)

    Ou, Shu-Ching; Cui, Di; Wezowicz, Matthew; Taufer, Michela; Patel, Sandeep

    2015-06-15

    In this study, we examine the temperature dependence of free energetics of nanotube association using graphical processing unit-enabled all-atom molecular dynamics simulations (FEN ZI) with two (10,10) single-walled carbon nanotubes in 3 m NaI aqueous salt solution. Results suggest that the free energy, enthalpy and entropy changes for the association process are all reduced at the high temperature, in agreement with previous investigations using other hydrophobes. Via the decomposition of free energy into individual components, we found that solvent contribution (including water, anion, and cation contributions) is correlated with the spatial distribution of the corresponding species and is influenced distinctly by the temperature. We studied the spatial distribution and the structure of the solvent in different regions: intertube, intratube and the bulk solvent. By calculating the fluctuation of coarse-grained tube-solvent surfaces, we found that tube-water interfacial fluctuation exhibits the strongest temperature dependence. By taking ions to be a solvent-like medium in the absence of water, tube-anion interfacial fluctuation shows similar but weaker dependence on temperature, while tube-cation interfacial fluctuation shows no dependence in general. These characteristics are discussed via the malleability of their corresponding solvation shells relative to the nanotube surface. Hydrogen bonding profiles and tetrahedrality of water arrangement are also computed to compare the structure of solvent in the solvent bulk and intertube region. The hydrophobic confinement induces a relatively lower concentration environment in the intertube region, therefore causing different intertube solvent structures which depend on the tube separation. This study is relevant in the continuing discourse on hydrophobic interactions (as they impact generally a broad class of phenomena in biology, biochemistry, and materials science and soft condensed matter research), and

  10. PBDEs and PCBs in sediments of the Thi Nai Lagoon (Central Vietnam) and soils from its mainland.

    Science.gov (United States)

    Romano, Stefania; Piazza, Rossano; Mugnai, Cristian; Giuliani, Silvia; Bellucci, Luca Giorgio; Huu, Cu Nguyen; Vecchiato, Marco; Zambon, Stefano; Hoai, Nhon Dang; Frignani, Mauro

    2013-03-01

    Concentration and distribution of PCBs, PCB 11, and PBDEs in both surficial sediment and soil samples, taken from a zone subject to recent accelerated development, were investigated to assess the environmental quality and understand both natural and anthropogenic processes that influence contaminant behaviors. Values of PCB and PBDE are in the lower range of those reported in literature, typical of low impacted coastal zones. This could be due to efficient processes of resuspension and removal. Contaminants in the lagoon showed higher concentrations in sediments from sites close to the city and the outfalls of the industrial area, while soils showed maximum values in the northern samples. In addition, congener patterns and statistical analyses suggest the presence of effective degradation processes, especially for PBDEs, with the exception of the most concentrated samples that may indicate a direct input. PCB 11 is a significant component (up to 18%) in most lagoon sediments. Its presence is strongly associated with fine particles, thus the distribution seems to be driven mainly by the system hydrodynamic and does not trace the sources. Due to evaporation, only flooded agricultural soils show a similar relative abundance of this congener. PMID:23182686

  11. Complex Generalized Synchronization and Parameter Identification of Nonidentical Nonlinear Complex Systems.

    Directory of Open Access Journals (Sweden)

    Shibing Wang

    Full Text Available In this paper, generalized synchronization (GS is extended from real space to complex space, resulting in a new synchronization scheme, complex generalized synchronization (CGS. Based on Lyapunov stability theory, an adaptive controller and parameter update laws are designed to realize CGS and parameter identification of two nonidentical chaotic (hyperchaotic complex systems with respect to a given complex map vector. This scheme is applied to synchronize a memristor-based hyperchaotic complex Lü system and a memristor-based chaotic complex Lorenz system, a chaotic complex Chen system and a memristor-based chaotic complex Lorenz system, as well as a memristor-based hyperchaotic complex Lü system and a chaotic complex Lü system with fully unknown parameters. The corresponding numerical simulations illustrate the feasibility and effectiveness of the proposed scheme.

  12. Complex Generalized Synchronization and Parameter Identification of Nonidentical Nonlinear Complex Systems.

    Science.gov (United States)

    Wang, Shibing; Wang, Xingyuan; Han, Bo

    2016-01-01

    In this paper, generalized synchronization (GS) is extended from real space to complex space, resulting in a new synchronization scheme, complex generalized synchronization (CGS). Based on Lyapunov stability theory, an adaptive controller and parameter update laws are designed to realize CGS and parameter identification of two nonidentical chaotic (hyperchaotic) complex systems with respect to a given complex map vector. This scheme is applied to synchronize a memristor-based hyperchaotic complex Lü system and a memristor-based chaotic complex Lorenz system, a chaotic complex Chen system and a memristor-based chaotic complex Lorenz system, as well as a memristor-based hyperchaotic complex Lü system and a chaotic complex Lü system with fully unknown parameters. The corresponding numerical simulations illustrate the feasibility and effectiveness of the proposed scheme. PMID:27014879

  13. Problems with Integration opf AGS and CGS

    DEFF Research Database (Denmark)

    Korsbech, Uffe C C; Bargholz, Kim; Aage, Helle Karina

    1999-01-01

    The report describes and analyses the influence of the environment on the measured signals. Examined parameters are homogeneity of contamination, dept of burial for contamination, tophology on micro and macro scale, altitude for detector and distance to the source......The report describes and analyses the influence of the environment on the measured signals. Examined parameters are homogeneity of contamination, dept of burial for contamination, tophology on micro and macro scale, altitude for detector and distance to the source...

  14. Geometrical optimization of an annulus Compton suppression system using Monte Carlo simulation.

    Science.gov (United States)

    Han, Jubong; Lee, K B; Park, T S; Lee, J M; Lee, S H

    2013-11-01

    We are planning to construct a Compton-suppression system permitting accurate and precise determinations of radioactivity of low-level environmental samples. An annulus guard detector (NaI) and a plug-in detector (NaI) are being used as suppression detectors with an HPGe primary detector. The geometry of the Compton suppression spectrometer was optimized by simulation with PENELOPE for obtaining the highest suppression factor (SF) for a point source. The results of the simulations show that the ultimate value of the suppression factor is 7.87 ± 0.18, obtained when the source is located at 57% of an annuls guard detector. PMID:23583087

  15. AZTEC: A parallel iterative package for the solving linear systems

    Energy Technology Data Exchange (ETDEWEB)

    Hutchinson, S.A.; Shadid, J.N.; Tuminaro, R.S. [Sandia National Labs., Albuquerque, NM (United States)

    1996-12-31

    We describe a parallel linear system package, AZTEC. The package incorporates a number of parallel iterative methods (e.g. GMRES, biCGSTAB, CGS, TFQMR) and preconditioners (e.g. Jacobi, Gauss-Seidel, polynomial, domain decomposition with LU or ILU within subdomains). Additionally, AZTEC allows for the reuse of previous preconditioning factorizations within Newton schemes for nonlinear methods. Currently, a number of different users are using this package to solve a variety of PDE applications.

  16. Joint Polar Satellite System Common Ground System Overview

    Science.gov (United States)

    Jamilkowski, M. L.; Smith, D. C.

    2011-12-01

    Jointly acquired by NOAA & NASA, the next-generation civilian environmental satellite system, Joint Polar Satellite System (JPSS), will supply the afternoon orbit & ground system of the restructured NPOESS program. JPSS will replace NOAA's current POES satellites and the ground processing part of both POES & DoD's Defense Weather Satellite System (DWSS)(DMSP replacement). JPSS sensors will collect meteorological, oceanographic, climatological and solar-geophysical data. The ground system, or JPSS Common Ground System (CGS), has 6 integrated product teams/segments: Command, Control & Communications (C3S); Interface Data Processing (IDPS); Field Terminal (FTS); Systems Engineering, Integration & Test (SEIT); Operations & Support (O&S); and Sustainment developed by Raytheon Intelligence & Information Systems. The IDPS will process JPSS data to provide Environmental Data Records (EDRs) to NOAA & DoD processing centers beginning with the NPOESS Preparatory Project (NPP) and through JPSS & DWSS eras. C3S will: manage overall JPSS & DWSS missions from control/status of space/ground assets to ensure timely delivery of high-quality data to IDPS; provide globally-distributed ground assets to collect/transport mission, telemetry and command data between satellites & processing locations; provide all commanding & state-of-health monitoring functions of NPP, JPSS and DWSS satellites, and delivery of mission data to each Central IDP and monitor/report system-wide health/status and data communications with external systems and between CGS segments. SEIT leads the overall effort, including: manage/coordinate/execute JPSS CGS activities with NASA participation/oversight; plan/conduct all activities related to systems engineering, develop & ensure completeness of JPSS CGS functional & technical baselines and perform integration, deployment, testing and verification; sponsor/support modeling & simulation, performance analysis and trade studies; provide engineering for the product

  17. Methodology for calibration of detector of NaI (TI)) 3 ' X 3 ' for in vivo measurements of patients with hyperthyroidism undergoing to radioiodotherapy; Metodologia para calibracao de detector de NaI(TI) ) 3'X3' para medicoes in vivo em pacientes portadores de hipertireoidismo submetidos a radioiodoterapia

    Energy Technology Data Exchange (ETDEWEB)

    Carvalho, Carlaine B.; Lacerda, Isabelle V.B.; Oliveira, Mercia L.; Hazin, Clovis A., E-mail: carlaine.carvalho@gmail.com, E-mail: bellelacerda@hotmail.com, E-mail: mercial@cnen.gov.br, E-mail: chazin@cnen.gov.br [Universidade Federal de Pernambuco (DEN/UFPE), Recife, PE (Brazil). Departamento de Energia Nuclear; Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PE (Brazil); Lima, Fabiana F., E-mail: fflima@cnen.gov.br [Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PE (Brazil)

    2013-10-01

    The aim of this study is to establish the methodology for calibration of the detection system to be used in determining the therapeutic activity of {sup 131}I required to release desired absorbed dose in the thyroid gland . This step is critical to the development of a protocol for individualized doses. The system consists of a detector of NaI (Tl ) 3'x3' coupled to software Genie 2000. We used the calibration sources of {sup 60}Co , {sup 137}Cs and {sup 133}Ba. We obtained the straight calibration system, with sources {sup 60}Co and {sup 137}Cs. Subsequently , the detector was calibrated using a thyroid phantom-neck designed and produced by the IRD / CNEN with known activity of {sup 133}Ba standard solution containing 18.7 kBq (on 09/24/12) evenly distributed. He was also calibrated with other thyroid- neck phantom model 3108 manufactured by Searle Radigraphics Ind., containing a liquid source of {sup 131}I ( 7.7 MBq ). Five measurements were performed during 5 minutes for three different distances detector-simulator and calculated the corresponding calibration factors . The values of the calibration factors found for the simulator made by IRD and Searle Radigraphics Ind. for the distances 20, 25 and 30 cm were 0.35 , 0.24, 0.18, 0.15 , 0.11, 0, 09 , respectively. With the detection system properly calibrated and the calibration factors established, the technique is suitable for the evaluation of diagnostic activities of {sup 131}I incorporated by hyperthyroid patients. (author)

  18. Review on the Recent Developments of Photovoltaic Thermal (PV/T and Proton Exchange Membrane Fuel Cell (PEMFC Based Hybrid System

    Directory of Open Access Journals (Sweden)

    Zulkepli Afzam

    2016-01-01

    Full Text Available Photovoltaic Thermal (PV/T system emerged as one of the convenient type of renewable energy system acquire the ability to generate power and thermal energy in the absence of moving parts. However, the power output of PV/T is intermittent due to dependency on solar irradiation condition. Furthermore, its efficiency decreases because of cells instability at high temperature. On the other hand, fuel cell co-generation system (CGS is another technology that can generate power and heat simultaneously. Integration of PV/T and fuel cell CGS could enhance the reliability and sustainability of both systems as well as increasing the overall system performance. Hence, this paper intended to present the parameters that affect performance of PV/T and Proton Exchange Membrane Fuel Cell (PEMFC CGS. Moreover, recent developments on PV/T-fuel cell hybrid system are also presented. Based on literates, mass flow rate of moving fluid in PV/T was found to affect the system efficiency. For the PEMFC, when the heat is utilized, the system performance can be increased where the heat efficiency is similar to electrical efficiency which is about 50%. Recent developments of hybrid PV/T and fuel cell show that most of the studies only focus on the power generation of the system. There are less study on the both power and heat utilization which is indeed necessary in future development in term of operation strategy, optimization of size, and operation algorithm.

  19. 关于非对称线性方程组的新迭代算法%THE NEW ITERATIVE ALGORITHM FOR NONSYMMETRIC LINEAR SYSTEMS

    Institute of Scientific and Technical Information of China (English)

    李文军

    2001-01-01

    In this paper,we present a kind of pre-symmetrizers for the nonsymmetric linear systems arising from the discretization of nonself-adjoint second order scalar elliptic equation.Based on combination these pre-symmetrizers with CG method,the new algorithm,LRSCG algorithm,is presented.The numerical results show that the LRSCG algorithm is better than BiCG,CGS,BiCGSTAB,GMRES,QMR and SGMRES methods for thses nonsymmetric linear systems.

  20. Suomi NPP Ground System Performance

    Science.gov (United States)

    Grant, K. D.; Bergeron, C.

    2013-12-01

    The National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation civilian weather and environmental satellite system: the Joint Polar Satellite System (JPSS). JPSS will replace the afternoon orbit component and ground processing system of the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA. The JPSS satellites will carry a suite of sensors designed to collect meteorological, oceanographic, climatological and geophysical observations of the Earth. The first satellite in the JPSS constellation, known as the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite, was launched on 28 October 2011, and is currently undergoing product calibration and validation activities. As products reach a beta level of maturity, they are made available to the community through NOAA's Comprehensive Large Array-data Stewardship System (CLASS). CGS's data processing capability processes the satellite data from the Joint Polar Satellite System satellites to provide environmental data products (including Sensor Data Records (SDRs) and Environmental Data Records (EDRs)) to NOAA and Department of Defense (DoD) processing centers operated by the United States government. CGS is currently processing and delivering SDRs and EDRs for Suomi NPP and will continue through the lifetime of the Joint Polar Satellite System programs. Following the launch and sensor activation phase of the Suomi NPP mission, full volume data traffic is now flowing from the satellite through CGS's C3, data processing, and data delivery systems. Ground system performance is critical for this operational system. As part of early system checkout, Raytheon measured all aspects of data acquisition, routing, processing, and delivery to ensure operational performance requirements are met, and will continue to be met throughout the mission. Raytheon developed a tool to measure, categorize, and

  1. A SYSTEM OF "DEFINITIVE UNITS" PROPOSED FOR UNIVERSAL USE.

    Science.gov (United States)

    Campbell, G A

    1925-04-01

    It is proposed that physicists discard the CGS and Heaviside units, which are responsible for much confusion and needless mental effort, and employ exclusively a single system of "definitive units." The units suggested include the international meter, the international kilogram, the second, the mechanical watt, the international mercury ohm and they conform with the other international units as closely as is compatible with self-consistency. The system is not only definite and absolute, but also comprehensive, readily visualized and, in large part, already employed under well-established names. The system was proposed in 1901 by Giorgi and in 1904 by Robertson but received scant attention on account of the artificial prestige of the CGS system. A single universal system of units should be the ultimate goal, and the "definitive units" are chosen with a view to their adoption not only by all scientists but also by the butcher, the baker and the candlestick-maker. The definitive system of units makes it perfectly feasible to employ a single system much more generally than has ever been the case in the past; the natural ultimate goal is the universal use of these units for all purposes. In the attempt to extend the application of metric units in the United States the meter-stere-kilogram, rather than the meter-liter-gram, should form the basis for legislation, in order to give definitive units their proper legalized status and to secure to the full the advantages of a comprehensive system consistently interrelated with the legalized international electrical units. The gradual discarding of CGS and other redundant units would inevitably follow. Even in the absence of official recognition of definitive units, individuals may advantageously employ the system. This would cause confusion neither to authors nor readers, since these units, in the main, have already acquired vital existence through world-wide, daily use under familiar, well-established names. PMID:17840709

  2. 内观认知与综合干预疗法治疗酒依赖症复饮患者的对比研究%Comparison of efficacy of comprehensive intervention therapy and NaiKan cognitive therapy in treatment of alcohol dependence

    Institute of Scientific and Technical Information of China (English)

    张爱菊

    2016-01-01

    Objective:To compare and study efficacy of comprehensive intervention based on repeated cue-exposure therapy and NaiKan cognitive therapy in treatment of alcohol dependence. Methods:60 patients with alcohol dependence were selected and di-videdinto comprehensive intervention group ( n=32 ) and NaiKan cognitive therapy group ( n=28 ) . The comprehensive intervention group was given the comprehensive intervention based on repeated cue-exposure, while the NaiKan cognitive therapy group received the NaiKan cognitive therapy. The efficacies of the two groups were compared. Results:After the treatment, the scores of obsessive com-pulsive drinking scale(OCDS)in both groups were significantly improved (P0. 05). Conclusions: Comprehensive interven-tion based on repeated cue-exposure therapy and NaiKan cognitive therapy may perform the similar value in the treatment of alcohol de-pendence with no significant differences.%目的::对内观认知和以反复线索暴露为基础的综合干预疗法治疗酒依赖症复饮患者的疗效进行对比研究。方法:以60例酒依赖症复饮患者为研究对象分为综合干预组与内观认知组。在进行常规治疗基础上,综合干预组患者32例,采取以反复线索暴露为基础的综合干预治疗;内观认知组患者28例,采用内观认知疗法进行治疗。比较两组患者的治疗效果。结果:治疗后,两组患者的强制性饮酒问卷评分均明显改善(P0.05)。结论:内观认知疗法与以反复线索暴露为基础的综合干预疗法可以有效提高酒依赖症复饮患者的疗效,且无明显差异。

  3. Observation des influences du changement du couvert forestier sur le comportement hydrologique de grands bassins versants tropicaux a l'aide de la teledetection numerique: Cas du bassin versant de Dong Nai, Viet Nam

    Science.gov (United States)

    Pham, Trinh Hung

    Monitoring hydrological behavior of a large tropical watershed following a forest cover variation has an important role in water resource management planning as well as for forest sustainable management. Traditional methods in forest hydrology studies are Experimental watersheds, Upstream-downstream, Experimental plots, Statistical regional analysis and Watershed simulation. Those methodes have limitations for large watersheds concerning the monitoring time, the lack of input data especially about forest cover and the capacity of extrapolating results accurately in terms of large watersheds. Moreover, there is still currently a scientific debate in forest ecology on relation between water and forest. The reason of this problem comes from geographical differences in publication concerning study zones, experimental watershed size and applied methods. It gives differences in the conclusions on the influence of tropical forest cover change on the changes of outlet water and yet on the yearly runoff in terms of large watershed. In order to exceed the limitations of actual methods, to solve the difficulty of acquiring forest cover data and to have a better understanding of the relation between tropical forest cover change and hydrological behavior evolution of a large watershed, it is necessary to develop a new approach by using numeric remote sensing. We used the watershed of Dong Nai as a case study. Results show that a fusion between TM and ETM+ Landsat image series and hydro-meteorologic data allow us to observe and detect flooding trends and flooding peaks after an intensive forest cover change from 16% to 20%. Flooding frequency and flooding peaks have clearly decreased when there is an increase of the forest cover from 1983 to 1990. The influence of tropical forest cover on the hydrological behavior is varying with geographical locations of watershed. There is a significant relation between forest cover evolution and environmental facteurs as the runoff

  4. 广东地区土壤中分离的棘阿米巴CG/S 1株的18 S rDNA基因分析%Analysis of 18 S rDNA gene of Acanthamoeba sp. CG/S 1 isolated from Guangdong soil

    Institute of Scientific and Technical Information of China (English)

    王月华; 玄英花; 郑善子; 崔春权

    2007-01-01

    [目的]从广东地区土壤中分离棘阿米巴CG/S 1株,测定其18 S rDNA基因序列. [方法]从土壤中分离棘阿米巴CG/S 1株,提取基因组18 S rDNA,应用棘阿米巴属特异性引物进行PCR扩增,测定序列,用分子生物学软件Clustal X进行序列分析,并与其他棘阿米巴分离株进行比较分析. [结果]棘阿米巴CG/S 1的18 S rDNA全基因序列为2 292 bp,基因型为T 5型;CG/S 1与A.lenticulata 7327株的序列差异率为0.61%,与CB/S 1株的序列差异率为0.74%. [结论]广东地区土壤中分离的棘阿米巴Acanthamoeba sp. CG/S 1为A. lenticulata株.

  5. Némethy, Judit Kesserű: “Szabadságom lett a börtönöm”: Az argentínai magyar emigráció története 1948-1968

    Directory of Open Access Journals (Sweden)

    Andrew Ludanyi

    2011-01-01

    Full Text Available Némethy, Judit Kesserű: “Szabadságom lett a börtönöm”: Az argentínai magyar emigráció története 1948-1968 (“My Freedom Became My Prison”: The History of the Hungarian Emigrés in Argentina, 1948-1968. Budapest: A Magyar Nyelv és Kultúra Nemzetközi Társasága, 2003. ISBN 963212 152X, 430 pp. Reviewed by Andrew Ludanyi, Ohio Northern University.

  6. Post-flight Analysis and Design Improvement in Command Guidance System for a Short-range Surface-to-air Missile System

    OpenAIRE

    Ajit B. Chaudhary; Anil Kumar D. Uttarkar; Prashant Vora; R. N. Bhattacherjee

    2005-01-01

    A short-range missile with command-to line-of-sight and three-beam guidance has been considered in this paper. The earlier command guidance system (CGS) design shows unacceptablyhigh-low-frequency weave-mode oscillations, leading to high latax and body rate oscillations, even for benign, low-speed non-manoeuvring target engagements. For successful targetengagements with the three-beam guidance, missile is to be handed over from wide-to-medium receiver beam, and finally, from medium-to-the mos...

  7. An enshrouded AGN in the merging starburst system Arp~299 revealed by BeppoSAX

    CERN Document Server

    Ceca, R D; Tavecchio, F; Maraschi, L; Petrucci, P O; Bassani, L; Cappi, M; Dadina, M; Franceschini, A; Malaguti, G; Palumbo, G G C; Persic, M

    2002-01-01

    Using a long (=150 ksec), broad-band (0.1--40 keV) BeppoSAX observation of the merging starburst system Arp 299 (=IC 694 + NGC 3690) we found the first unambiguous evidence of the presence of a deeply buried (N_H = 2.5E24 cm-2) AGN having an intrinsic luminosity of L(0.5-100 keV) = 1.9E43 cgs. The X-ray spectral properties of this AGN are discussed in detail as well as the thermal component detected at soft X-ray energies which, most likely, is associated with the starburst.

  8. Witwatersrand Water Ingress Project - Information Management System (WWIPIMS), South Africa

    Energy Technology Data Exchange (ETDEWEB)

    Hild, S.; Sieste, M.; Barth, A.; Rudinskaya, J. [Beak Consultants GmbH, Freiberg (Germany); Croukamp, L.; Roos, M. [Council for Geoscience (CGS), Pretoria (South Africa)

    2006-07-01

    The Witwatersrand Water Ingress Project at the Council for Geoscience, South Africa (CGS) deals with an inventory, a risk assessment and the development of rehabilitation strategies for abandoned mining sites in the Witwatersrand Mining Basin. The main focus is the prevention of water ingress and to understand the future decanting scenario. An Information Management System consisting of both a relational database and an application for the Witwatersrand Water Ingress Project is established for accessing and managing all project-related data. This easy to use application makes the data available to all staff at the CGS via several modules as well as a GIS-component for accessing and querying spatial data. This will enable the scientists to derive further knowledge of the water flowing processes by directly using all of the existing up-to-date data. Many additional functions, such as the support for map printing on demand, extensive possibilities for inquiries, data import and export, diagrams and a GIS-viewer for spatial inquiries do complete the system. (orig.)

  9. 内观认知疗法对精神分裂症康复期患者自尊水平、信赖他人以及容纳他人的影响%Effects of NaiKan Cognitive Therapy on Self-Esteem level, Faith in People and Acceptance of Others in patients with Convalescent Schizophrenia

    Institute of Scientific and Technical Information of China (English)

    曹桐; 毛富强; 田红军; 周天红; 孙凌

    2015-01-01

    Objective To explore ef ects of NaiKan cognitive therapy on improving self-esteem level in patients with Convalescent Schizophrenia. Methods The 69 convalescent schizophrenic patients with convalescent clinical state were consecutively recruited from the inpatients of the department of psychiatry, Tianjin Anding Hospital from September in 2008 to February in 2009. Al the patients were divided into NCT group an control group at random and were pretreated with antipsychotic agent therapy. In NCT group, the patients received NaiKan Cognitive Therapy (NCT) for successive 7 days. In control group, the patients only received antipsychotic agent therapy. Pre-and post-treatment The Self-Esteem Scale (SES) were administered to al subjects. Results A increase occur ed in self-esteem scale score in NCT group (t=4.494, =0.000).No significant dif erent between NCT group and control group is in the Pre-and post-treatment.No significant dif erent between NCT group and control guoup is in the Pre-and post-treatment in Faith in People Scale. A significant derease occurred in Acceptance of Others score in NCT group (t=-3.347, =0.002). Conclusion NCT can possibly improve self-esteem level of patients with convalescent schizophrenia to a certain extent, but long-ef ect is not certain.%目的探讨内观认知疗法对精神分裂症康复期患者的自尊水平的影响。方法:选取自2008年9月1日~2009年2月1日于天津市安定医院住院的精神分裂症康复期患者69例,随机将患者分为内观认知治疗组和对照组:内观认知治疗组(n=30)在服用原药物的基础上,合并给予连续7d集中内观认知疗法(NaiKan Cognitive Therapy,NCT);对照组(n=32)只给予原药物治疗,观察1w。在入组时进行阳性与阴性症状量表(PANSS)以及一般资料的收集,在入组时和1w后进行自尊量表(SES),信赖他人量表(FPS)和容纳他人量表(Acceptance of Others)的评定。结果:NCT组患者治疗后SES评分较治疗

  10. Development of a compound energy system for cold region houses using small-scale natural gas cogeneration and a gas hydrate battery

    International Nuclear Information System (INIS)

    In this study, an independent energy system for houses in cold regions was developed using a small-scale natural gas CGS (cogeneration), air-source heat pump, heat storage tank, and GHB (gas hydrate battery). Heat sources for the GHB were the ambient air and geothermal resources of the cold region. The heat cycle of CO2 hydrate as a source of energy was also experimentally investigated. To increase the formation speed of CO2 hydrates, a ferrous oxide–graphite system catalyst was used. The ambient air of cold regions was used as a heat source for the formation process (electric charge) of the GHB, and the heat supplied by a geothermal heat exchanger was used for the dissociation process (electric discharge). Using a geothermal heat source, fuel consumption was halved because of an increased capacity for hydrate formation in the GHB, a shortening of the charging and discharging cycle, and a decrease in the freeze rate of hydrate formation space. Furthermore, when the GHB was introduced into a cold region house, the application rate of renewable energy was 47–71% in winter. The spread of the GHB can greatly reduce fossil fuel consumption and the associated greenhouse gases released from houses in cold regions. - Highlights: • Compound energy system for cold region houses by a gas hydrate battery was proposed. • Heat sources of a gas hydrate battery are exhaust heat of the CGS and geothermal. • Drastic reduction of the fossil fuel consumption in a cold region is realized

  11. A gamma-ray spectrometer system for fusion applications

    CERN Document Server

    Esposito, B; Kaschuck, Y A; Martin-Solis, J R; Portnov, D V

    2002-01-01

    A NaI scintillator spectrometer system for the measurement of gamma-ray spectra in tokamak discharges has been developed and installed on the Frascati Tokamak Upgrade. Two NaI scintillators are viewing the plasma at two different angles with respect to the equatorial plane. The main features of the spectrometer system (energy range: 0.3-23 MeV) and of the unfolding technique used to restore physical spectra from the pulse-height distributions are described: a method of solution with regularisation for matrix equations of large size, allowing to process count distributions with significant statistical noise, has been developed. A dedicated software, portable to any platform, has been written both for the acquisition and the analysis of the spectra. The typical gamma-ray spectra recorded in hydrogen and deuterium discharges, also with additional heating, are presented and discussed; two components have been observed: (a) thick-target Bremsstrahlung gamma-rays produced by runaway electrons hitting the Inconel po...

  12. An Ab initio Theoretical Study on the Nonadiabatic Coupling for Na+I2 Collision System

    Institute of Scientific and Technical Information of China (English)

    孙孝敏; 蔡政亭; 冯大诚

    2003-01-01

    The ionic and neutral state potential energy surfaces (PESs) of Na+I2 collision system have been calculated on QCISD(T) level by using ab initio method.The location and depth of the potential well,the collision radius and their fine structures have been analyzed at the equilibrium geometry of I2 molecule.The electronic transfer probabilities are also calculated in terms of Landau-Zener model.The lifetime of scattering resonance state is evaluated by the uncertainty principle.All the results have been compared with those obtained according to the Aten-Lanting-Los PES and Feng's PES.

  13. The SiRi particle-telescope system

    International Nuclear Information System (INIS)

    A silicon particle-telescope system for light-ion nuclear reactions is described. In particular, the system is optimized for level density and γ-ray strength function measurements with the so-called Oslo method. Eight trapezoidal modules are mounted at 5 cm distance from the target, covering eight forward angles between θ=40 deg. and 54 deg. The thin front ΔE detectors (130μm) are segmented into eight pads, determining the reaction angle θ for the outgoing charged ejectile. Guard rings on the thick back E detectors (1550μm) guarantee low leakage current at high depletion voltage. - Highlights: → We have designed silicon chips with guard rings with small leakage current. → These form a particle-telescope system with 64 ΔE-E detectors. → The system covers eight forward angels between 40 deg. and 54 deg. → Together with NaI detectors we obtain high γ-particle coincidence efficiency.

  14. The SiRi particle-telescope system

    Energy Technology Data Exchange (ETDEWEB)

    Guttormsen, M., E-mail: magne.guttormsen@fys.uio.no [Department of Physics, University of Oslo (Norway); Buerger, A. [Department of Physics, University of Oslo (Norway); Hansen, T.E.; Lietaer, N. [SINTEF, Department for Microsystems and Nanotechnology, Oslo (Norway)

    2011-08-21

    A silicon particle-telescope system for light-ion nuclear reactions is described. In particular, the system is optimized for level density and {gamma}-ray strength function measurements with the so-called Oslo method. Eight trapezoidal modules are mounted at 5 cm distance from the target, covering eight forward angles between {theta}=40 deg. and 54 deg. The thin front {Delta}E detectors (130{mu}m) are segmented into eight pads, determining the reaction angle {theta} for the outgoing charged ejectile. Guard rings on the thick back E detectors (1550{mu}m) guarantee low leakage current at high depletion voltage. - Highlights: > We have designed silicon chips with guard rings with small leakage current. > These form a particle-telescope system with 64 {Delta}E-E detectors. > The system covers eight forward angels between 40 deg. and 54 deg. > Together with NaI detectors we obtain high {gamma}-particle coincidence efficiency.

  15. Additional effective dose by patients undergoing NAI-131 capsules therapy

    Energy Technology Data Exchange (ETDEWEB)

    Orlic, M.; Jovanovic, M.; Spasic Jokic, V.; Cuknic, O.; Ilic, Z.; Vranjes Djuric, S. [VINCA - Institute of Nuclear Sciences, Belgrade, Serbia and Montenegro (Yugoslavia)

    2006-07-01

    Capsules or solutions containing Na{sup 131}I are indicated for the therapy of some thyroid carcinomas such as functioning metastatic papillary or follicular carcinoma of the thyroid; and for the treatment of hyperthyroidism (diffuse toxic goiter and single or multiple toxic nodular goiter). The recommended dosage ranges of Na{sup 131}I capsules or solution for the therapy of the average patient (70 kg) are: (3.7-5.55) GBq for ablation of normal thyroid tissue; (3.7-7.4) GBq for subsequent treatments; a (148-370) MBq for hyperthyroidism. The purpose of this paper is to calculate effective dose as a result of iodine-131 capsules remaining in stomach before absorption starts. This result can determine the disadvantage of capsule versus solution containing sodium iodine-131 (Na{sup 131}I) in radionuclide therapy application from radiation protection point of view. The Monte Carlo code MCNP4b was used to model transport of gamma and beta particles emitted by radionuclide {sup 131}I treated as a point source at the bottom of stomach. Absorbed energy per unit transformation in stomach and surrounding organs has been calculated. (authors)

  16. Remoción de terceros molares mandibulares con asistencia endoscópica: Nota técnica de un nuevo procedimiento quirúrgico para prevenir lesiones del NAI y formación de defectos óseos Removal of mandibular third molars with endoscopic approach: Technical note of a new surgical procedure to avoid IAN damage and bone defect formation

    Directory of Open Access Journals (Sweden)

    R Fuentes

    2012-08-01

    Full Text Available La variada posición anatómica de los terceros molares mandibulares presenta importantes desafíos asociados a su profundidad y grado de inclinación. Las complicaciones más habituales del procedimiento quirúrgico convencional de extracción se relacionan con la extensa osteotomía y poca visualización del sitio quirúrgico, que pueden generar consecuencias post-quirúrgicas como inflamación, dolor, trismus, lesiones reversibles e irreversibles del nervio alveolar inferior (NAI o nervio lingual, riesgo de fractura y formación de defectos periodontales del segundo molar. La implementación de soportes rígidos en la óptica endoscópica ha permitido utilizar esta tecnología para realizar abordajes mínimamente invasivos para remover terceros molares mediante accesos flapless con una mínima osteotomía de la zona oclusal, conservando la pared bucal y lingual a través de la visualización directa y magnificada del sitio quirúrgico, adaptable a los movimientos del paciente durante la intervención. En este reporte se presenta un nuevo procedimiento quirúrgico mínimamente invasivo a través de asistencia endoscópica para la conservación ósea en la remoción de terceros molares mandibulares con riesgo de lesión del nervio alveolar inferior.Anatomic variability of the position of mandibular third molars represents significant challenges associated with its depth and angulation. The most common complications of conventional surgical procedure are related to extensive osteotomy and poor visualization, which can cause postsurgical effects such as inflammation, pain, trismus, reversible and irreversible lesions of the inferior alveolar nerve (IAN or lingual nerve, fracture risk and formation of a deep periodontal defect on the distal aspect of the second molar. The implementation of rigid endoscopy in optics has allowed to use this technology via a minimally invasive approach to remove third molars by a minimally occlusal flapless ostectomy

  17. Geochemical characteristics of crude oil and oil-source analysis in Nai 1 block for Naiman depression, Kailu Basin%开鲁盆地奈曼凹陷奈1区块原油地球化学特征及油源分析

    Institute of Scientific and Technical Information of China (English)

    赵兴齐; 陈践发; 张晨; 郭望; 师生宝

    2012-01-01

    Based on systematic analysis of group compositions, saturated hydrocarbon GC-MS for source rocks and crude oil in Nai 1 block, the geochemical characteristics and oil-source correlation were studied. The follwing are the characteristics of crude oil and lower Jiufotang formation source rocks; The distribution of alkane is complete, possessing double peaks which are nC23 and C17 respectively. Content of phytane is obviously higher than pristane w( Pr)/w( Ph)= 0. 36-0. 53. For sterane series, the content of regular sterane, distributing in the shape of " V" , is also obviously higher than the counterpart of preg-nane and rearranged sterane. Besides, the value of the parameters of C29,W(20S)/W(20S+20R) and w( ββ)/w(αα+ββ) are respectively 0. 27-0. 49 and 0. 23-0. 39. The terpane series is characterized by major part of CMHopane, relatively higher conLent of tncyclic diterpane and gammacerane but lower content of rearranged sterane, w(Ts) Nai 1 block is mainly from lower Jiufotang formation in Lower Cretaceous.%对奈曼凹陷奈1区块源岩与原油的族组分、饱和烃GC-MS特征进行系统分析,研究奈曼凹陷奈1区块源岩与原油的地球化学特征,并且进行油源对比分析.结果表明:原油与九下段源岩的正构烷烃分布完整,峰形呈双峰态,主峰碳为nC23,次主峰碳为C17,具有明显的植烷优势,w(Pr)/w( Ph)分布在0.36 ~0.53;甾烷以规则甾烷为主,孕甾烷、升孕甾烷、重排甾烷含量偏低,规则甾烷呈“V”型分布,C29甾烷w(20S

  18. Simplified slow anti-coincidence circuit for Compton suppression systems

    International Nuclear Information System (INIS)

    Slow coincidence circuits for the anti-coincidence measurements have been considered for use in Compton suppression technique. The simplified version of the slow circuit has been found to be fast enough, satisfactory and allows an easy system setup, particularly with the advantage of the automatic threshold setting of the low-level discrimination. A well-type NaI detector as the main detector surrounded by plastic guard detector has been arranged to investigate the performance of the Compton suppression spectrometer using the simplified slow circuit. The system has been tested to observe the improvement in the energy spectra for medium to high-energy gamma-ray photons from terrestrial and environmental samples

  19. Simplified slow anti-coincidence circuit for Compton suppression systems.

    Science.gov (United States)

    Al-Azmi, Darwish

    2008-08-01

    Slow coincidence circuits for the anti-coincidence measurements have been considered for use in Compton suppression technique. The simplified version of the slow circuit has been found to be fast enough, satisfactory and allows an easy system setup, particularly with the advantage of the automatic threshold setting of the low-level discrimination. A well-type NaI detector as the main detector surrounded by plastic guard detector has been arranged to investigate the performance of the Compton suppression spectrometer using the simplified slow circuit. The system has been tested to observe the improvement in the energy spectra for medium to high-energy gamma-ray photons from terrestrial and environmental samples. PMID:18222698

  20. Development of multichannel analyzer using sound card ADC for nuclear spectroscopy system

    Energy Technology Data Exchange (ETDEWEB)

    Ibrahim, Maslina Mohd; Yussup, Nolida; Lombigit, Lojius; Rahman, Nur Aira Abdul; Jaafar, Zainudin [Technical Support Division, Agency Nuclear Malaysia (Nuclear Malaysia) Bangi, 43000 KAJANG (Malaysia)

    2014-02-12

    This paper describes the development of Multi-Channel Analyzer (MCA) using sound card analogue to digital converter (ADC) for nuclear spectroscopy system. The system was divided into a hardware module and a software module. Hardware module consist of detector NaI (Tl) 2” by 2”, Pulse Shaping Amplifier (PSA) and a build in ADC chip from readily available in any computers’ sound system. The software module is divided into two parts which are a pre-processing of raw digital input and the development of the MCA software. Band-pass filter and baseline stabilization and correction were implemented for the pre-processing. For the MCA development, the pulse height analysis method was used to process the signal before displaying it using histogram technique. The development and tested result for using the sound card as an MCA are discussed.

  1. 14 CFR 1260.9 - Synopses requirements.

    Science.gov (United States)

    2010-01-01

    ... Service (NAIS), located at: http://prod.nais.nasa.gov/cgi-bin/nais/index.cgi; by using the Electronic Posting System (EPS), and transmitted to http://www.Fedgrants.gov. Synopses shall be electronically posted to: http://www.Fedgrants.gov no later than three business days after release of the full...

  2. Excitability of the T-tubular system in rat skeletal muscle

    DEFF Research Database (Denmark)

    Nielsen, O B; Ørtenblad, Niels; Lamb, G D;

    2004-01-01

    and 54 +/- 9% (of control force) at a [Na(+)](i) of 10 and 20 mM, respectively (n= 4). Double pulse stimulation of fibres at low [K(+)](i) showed that although elevated [Na(+)](i) increased the responsiveness to single action potentials, it reduced the capacity of the T-tubules to respond to high...

  3. Relative Study of CGS with ACO and BCO Swarm Intelligence Techniques

    OpenAIRE

    T.Hashni; T Amudha

    2012-01-01

    Swarm intelligence is the collective-level, problem-solving behavior of groups of relatively simple agents.Local interactions among agents, either direct or indirect through the environment, are fundamental for theemergence of swarm intelligence. Ant Colony Optimization (ACO) is a swarm based meta-heuristic method that isinspired by the behavior of real ant colonies. Bee Colony Optimization (BCO) meta-heuristic belongs to the groupof Swarm Intelligence techniques. Consultant Guided Search (CG...

  4. The Daniell cell, Ohm's law, and the emergence of the International System of Units

    Science.gov (United States)

    Jayson, Joel S.

    2014-01-01

    Telegraphy originated in the 1830s and 40 s and flourished in the following decades but with a patchwork of electrical standards. Electromotive force was for the most part measured in units of the predominant Daniell cell, but each telegraphy company had their own resistance standard. In 1862, the British Association for the Advancement of Science formed a committee to address this situation. By 1873, they had given definition to the electromagnetic system of units (emu) and defined the practical units of the ohm as 109 emu units of resistance and the volt as 108 emu units of electromotive force. These recommendations were ratified and expanded upon in a series of international congresses held between 1881 and 1904. A proposal by Giovanni Giorgi in 1901 took advantage of a coincidence between the conversion of the units of energy in the emu system (the erg) and in the practical system (the Joule). As it was, the same conversion factor existed between the cgs based emu system and a theretofore undefined MKS system. By introducing another unit X (where X could be any of the practical electrical units), Giorgi demonstrated that a self-consistent MKSX system was tenable without the need for multiplying factors. Ultimately, the ampere was selected as the fourth unit. It took nearly 60 years, but in 1960, Giorgi's proposal was incorporated as the core of the newly inaugurated International System of Units (SI). This article surveys the physics, physicists, and events that contributed to those developments.

  5. systems

    Directory of Open Access Journals (Sweden)

    Alexander Leonessa

    2000-01-01

    Full Text Available A nonlinear robust control-system design framework predicated on a hierarchical switching controller architecture parameterized over a set of moving nominal system equilibria is developed. Specifically, using equilibria-dependent Lyapunov functions, a hierarchical nonlinear robust control strategy is developed that robustly stabilizes a given nonlinear system over a prescribed range of system uncertainty by robustly stabilizing a collection of nonlinear controlled uncertain subsystems. The robust switching nonlinear controller architecture is designed based on a generalized (lower semicontinuous Lyapunov function obtained by minimizing a potential function over a given switching set induced by the parameterized nominal system equilibria. The proposed framework robustly stabilizes a compact positively invariant set of a given nonlinear uncertain dynamical system with structured parametric uncertainty. Finally, the efficacy of the proposed approach is demonstrated on a jet engine propulsion control problem with uncertain pressure-flow map data.

  6. The Daniell Cell, Ohm's Law and the Emergence of the International System of Units

    CERN Document Server

    Jayson, Joel S

    2015-01-01

    Telegraphy originated in the 1830s and 40s and flourished in the following decades, but with a patchwork of electrical standards. Electromotive force was for the most part measured in units of the predominant Daniell cell. Each company had their own resistance standard. In 1862 the British Association for the Advancement of Science formed a committee to address this situation. By 1873 they had given definition to the electromagnetic system of units (emu) and defined the practical units of the ohm as ${10}^9$ emu units of resistance and the volt as ${10}^8$ emu units of electromotive force. These recommendations were ratified and expanded upon in a series of international congresses held between 1881 and 1904. A proposal by Giovanni Giorgi in 1901 took advantage of a coincidence between the conversion of the units of energy in the emu system (the erg) and in the practical system (the joule) in that the same conversion factor existed between the cgs based emu system and a theretofore undefined MKS system. By in...

  7. Experimental and theoretical studies of iterative methods for nonlinear, nonsymmetric systems arising in combustion

    Energy Technology Data Exchange (ETDEWEB)

    Hagstrom, T. [Univ. of New Mexico, Albuquerque, NM (United States); Radhakrishnan, K. [Sverdrup Technology, Brook Park, OH (United States)

    1994-12-31

    The authors report on some iterative methods which they have tested for use in combustion simulations. In particular, they have developed a code to solve zero Mach number reacting flow equations with complex reaction and diffusion physics. These equations have the form of a nonlinear parabolic system coupled with constraints. In semi-discrete form, one obtains DAE`s of index two or three depending on the number of spatial dimensions. The authors have implemented a fourth order (fully implicit) BDF method in time, coupled with a suite of fourth order explicit and implicit spatial difference approximations. Most codes they know of for simulating reacting flows use a splitting strategy to march in time. This results in a sequence of nonlinear systems to solve, each of which has a simpler structure than the one they are faced with. The rapid and robust solution of the coupled system is the essential requirement for the success of their approach. They have implemented and analyzed nonlinear generalizations of conjugate gradient-like methods for nonsymmetric systems, including CGS and the quasi-Newton based method of Eirola and Nevanlinna. They develop a general framework for the nonlinearization of linear methods in terms of the acceleration of fixed-point iterations, where the latter is assumed to include the {open_quote}preconditioning{open_quote}. Their preconditioning is a single step of a split method, using lower order spatial difference approximations as well as simplified (Fickian) approximations of the diffusion physics.

  8. Some like it hot: Linking diffuse X-ray luminosity, baryonic mass, and star formation rate in compact groups of galaxies

    International Nuclear Information System (INIS)

    We present an analysis of the diffuse X-ray emission in 19 compact groups (CGs) of galaxies observed with Chandra. The hottest, most X-ray luminous CGs agree well with the galaxy cluster X-ray scaling relations in LX -T and LX -σ, even in CGs where the hot gas is associated with only the brightest galaxy. Using Spitzer photometry, we compute stellar masses and classify Hickson CGs 19, 22, 40, and 42, and RSCGs 32, 44, and 86 as fossil groups using a new definition for fossil systems that includes a broader range of masses. We find that CGs with total stellar and H I masses ≳ 1011.3 M☉ are often X-ray luminous, while lower-mass CGs only sometimes exhibit faint, localized X-ray emission. Additionally, we compare the diffuse X-ray luminosity against both the total UV and 24 μm star formation rates of each CG and optical colors of the most massive galaxy in each of the CGs. The most X-ray luminous CGs have the lowest star formation rates, likely because there is no cold gas available for star formation, either because the majority of the baryons in these CGs are in stars or the X-ray halo, or due to gas stripping from the galaxies in CGs with hot halos. Finally, the optical colors that trace recent star formation histories of the most massive group galaxies do not correlate with the X-ray luminosities of the CGs, indicating that perhaps the current state of the X-ray halos is independent of the recent history of stellar mass assembly in the most massive galaxies.

  9. Some Like it Hot: Linking Diffuse X-Ray Luminosity, Baryonic Mass, and Star Formation Rate in Compact Groups of Galaxies

    Science.gov (United States)

    Desjardins, Tyler D.; Gallagher, Sarah C.; Hornschemeier, Ann E.; Mulchaey, John S.; Walker, Lisa May; Brandt, Willian N.; Charlton, Jane C.; Johnson, Kelsey E.; Tzanavaris, Panayiotis

    2014-01-01

    We present an analysis of the diffuse X-ray emission in 19 compact groups (CGs) of galaxies observed with Chandra. The hottest, most X-ray luminous CGs agree well with the galaxy cluster X-ray scaling relations in L(x-T) and (L(x-sigma), even in CGs where the hot gas is associated with only the brightest galaxy. Using Spitzer photometry, we compute stellar masses and classify Hickson CGs 19, 22, 40, and 42, and RSCGs 32, 44, and 86 as fossil groups using a new definition for fossil systems that includes a broader range of masses. We find that CGs with total stellar and Hi masses are great than or equal to 10(sup (11.3) solar mass are often X-ray luminous, while lower-mass CGs only sometimes exhibit faint, localized X-ray emission. Additionally, we compare the diffuse X-ray luminosity against both the total UV and 24 micron star formation rates of each CG and optical colors of the most massive galaxy in each of the CGs. The most X-ray luminous CGs have the lowest star formation rates, likely because there is no cold gas available for star formation, either because the majority of the baryons in these CGs are in stars or the X-ray halo, or due togas stripping from the galaxies in CGs with hot halos. Finally, the optical colors that trace recent star formation histories of the most massive group galaxies do not correlate with the X-ray luminosities of the CGs, indicating that perhaps the current state of the X-ray halos is independent of the recent history of stellar mass assembly in the most massive galaxies.

  10. SYSTEM

    Directory of Open Access Journals (Sweden)

    K. Swarnalatha

    2013-01-01

    Full Text Available Risk analysis of urban aquatic systems due to heavy metals turns significant due to their peculiar properties viz. persis tence, non-degradab ility, toxicity, and accumulation. Akkulam Veli (AV, an urba n tropical lake in south India is subjected to various environmental stresses due to multiple waste discharge, sand mining, developmental activities, tour ism related activitie s etc. Hence, a comprehensive approach is adopted for risk assessment using modified degree of contamination factor, toxicity units based on numerical sediment quality guidelines (SQGs, and potentialecological risk indices. The study revealed the presence of toxic metals such as Cr, C d, Pb and As and the lake is rated under ‘low ecological risk’ category.

  11. Absolute dimensions of detached eclipsing binaries. II. The metallic-lined system XY Ceti

    CERN Document Server

    Southworth, John; Tamajo, E; Smalley, B; West, R G; Anderson, D R

    2011-01-01

    We present phase-resolved spectroscopy and extensive survey photometry of the detached eclipsing binary system XY Cet, which is composed of two metallic-lined stars. We measure their masses to be 1.773 +/- 0.016 and 1.615 +/- 0.014 Msun and their radii to be 1.873 +/- 0.035 and 1.773 +/- 0.029 Rsun, resulting in logarithmic surface gravities of 4.142 +/- 0.016 and 4.149 +/- 0.014 (cgs). We determine effective temperatures of 7870 +/- 115 and 7620 +/- 125 K. The projected rotational velocities are 34.4 +/- 0.4 and 34.1 +/- 0.4 km/s, which are close to synchronous. Theoretical models cannot match all of these properties, but come closest for a solar helium and metal abundance and an age in the region of 850 Myr. We obtain the individual spectra of the two stars by the spectral disentangling method, and compare them to synthetic spectra calculated for the measured effective temperatures and a solar chemical composition. Both stars show enhanced abundances of iron-group elements and clear deficiencies of Ca I and...

  12. Characterization of the Very Low Mass Secondary in the GJ 660.1AB System

    CERN Document Server

    Aganze, Christian; Faherty, Jacqueline K; Choban, Caleb; Escala, Ivanna; Lopez, Mike A; Jin, Yuhui; Tamiya, Tomoki; Tallis, Melisa; Rockward, Willie

    2015-01-01

    We present spectroscopic analysis of the low mass binary star system GJ 660.1AB, a pair of nearby M dwarfs for which we have obtained separated near-infrared spectra (0.9-2.5 $\\mu$m) with the SpeX spectrograph. The spectrum of GJ 660.1B is distinctly peculiar, with a triangular-shaped 1.7 $\\mu$m peak that initially suggests it to be a low surface gravity, young brown dwarf. However, we rule out this hypothesis and determine instead that this companion is a mild subdwarf (d/sdM7) based on the subsolar metallicity of the primary, [Fe/H] = $-$0.63$\\pm$0.06. Comparison of the near-infrared spectrum of GJ 660.1B to two sets of spectral models yields conflicting results, with a common effective temperature T$_{eff}$ = 2550-2650 K, but alternately low surface gravity ($\\log{g}$ = 4.4$\\pm$0.5 cgs) and very low metallicity ([M/H] = $-$0.96$^{+0.19}_{-0.24}$), or high surface gravity ($\\log{g}$ = 5.0-5.5) and slightly subsolar metallicity ([M/H] =$-$0.20$^{+0.13}_{-0.19}$). We conjecture that insufficient condensate op...

  13. Gamma ray attenuation in a developed borate glassy system

    Science.gov (United States)

    Saeed, Aly; El shazly, R. M.; Elbashar, Y. H.; Abou El-azm, A. M.; El-Okr, M. M.; Comsan, M. N. H.; Osman, A. M.; Abdal-monem, A. M.; El-Sersy, A. R.

    2014-09-01

    Measurements and calculations of gamma ray attenuation coefficients in glass barriers of xBaO-5ZnO-5MgO-14Na2O--1Li2O-(75-x)B2O3, previously prepared by the melt-quenching technique [1], were performed for γ-ray of energies 121.8, 244.7, 344.14, 661.66, 778.7, 974, 1086.7, 1173.24, 1332.5, and 1407.9 keV; which emitted from 152Eu, 137Cs, and 60Co radioactive gamma ray sources. The transmitted γ-rays were detected by 3″×3″ and 5″×5″ NaI (Tl) scintillation γ-ray spectrometers, and a highly calibrated survey meter. The mass attenuation coefficients of γ-rays (σ(E) were deduced from the attenuation curves, while the WinXCom computer program (version 3.1) was used to calculate the mass attenuation coefficients of γ-rays for such energies at different barium concentrations of a glassy system. A good agreement between both experimental and theoretical results was achieved as well as results obtained by other workers in similar field.

  14. Composite-step product methods for solving nonsymmetric linear systems

    Energy Technology Data Exchange (ETDEWEB)

    Chan, T.F.; Szeto, T. [Univ. of California, Los Angeles, CA (United States)

    1994-12-31

    The Biconjugate Gradient (BCG) algorithm is the {open_quotes}natural{close_quotes} generalization of the classical Conjugate Gradient method to nonsymmetric linear systems. It is an attractive method because of its simplicity and its good convergence properties. Unfortunately, BCG suffers from two kinds of breakdowns (divisions by 0): one due to the non-existence of the residual polynomial, and the other due to a breakdown in the recurrence relationship used. There are many look-ahead techniques in existence which are designed to handle these breakdowns. Although the step size needed to overcome an exact breakdown can be computed in principle, these methods can unfortunately be quite complicated for handling near breakdowns since the sizes of the look-ahead steps are variable (indeed, the breakdowns can be incurable). Recently, Bank and Chan introduced the Composite Step Biconjugate Gradient (CSBCG) algorithm, an alternative which cures only the first of the two breakdowns mentioned by skipping over steps for which the BCG iterate is not defined. This is done with a simple modification of BCG which needs only a maximum look-ahead step size of 2 to eliminate the (near) breakdown and to smooth the sometimes erratic convergence of BCG. Thus, instead of a more complicated (but less prone to breakdown) version, CSBCG cures only one kind of breakdown, but does so with a minimal modification to the usual implementation of BCG in the hope that its empirically observed stability will be inherited. The authors note, then, that the Composite Step idea can be incorporated anywhere the BCG polynomial is used; in particular, in product methods such as CGS, Bi-CGSTAB, and TFQMR. Doing this not only cures the breakdown mentioned above, but also takes on the advantages of these product methods, namely, no multiplications by the transpose matrix and a faster convergence rate than BCG.

  15. Rapid measurement of 131I in the thyroid gland using a portable Ge system

    International Nuclear Information System (INIS)

    Rapid yet accurate measurement of the 131I activity in the thyroid gland as well as in the air, water and vegetation may have an important role in obtaining quantitative information on internal doses for the people living in the vicinity of nuclear facilities shortly after an accidental release of radionuclides. Whole body counting technique is still the standard method for measuring radionuclides in the body while necessity for in situ measurement techniques has considerably increased especially after the Three Mile Island and Chernobyl accidents. For measurement of 131I in the thyroid gland in emergency situations, NaI (Tl) detectors, as in a scintillation survey meter as in the simplest case, are most often used while measurement of urinary excretions for members of the public may also effective. The scintillation survey meter method, being easily implemented, may not have enough selectivity for radioiodine and even be liable to an elevated background radiation spectrum. This would possibly lead to higher detection limits and lower accuracy. A use of a laboratory Ge (Li) detector system in the thyroidal radioiodine measurement was suggested to overcome the problem. A real measurement with a similar instrument was reported for the residents in U.K. after the Chernobyl accident. A use of a scintillation spectro-survey meter with a NaI (Tl) probe with lead collimation to thyroidal radioiodine measurement was also reported to give satisfactorily accurate evaluation of the thyroidal 131I burden. In this paper, a movable Ge system was developed for the above purpose and preliminarily evaluated particularly for counting efficiency. It is consisted of a portable high-purity Ge detector and a battery-operated MCA. It employs a laboratory made thin Pb shield with a collimation window and an elevator for the detector platform. The elevator was designed to adjust the height of the thyroid radioiodine probe in relation to the height and position of the neck of a subject

  16. Upgrade of the data acquisition system for the A2 experiment at MAMI

    Energy Technology Data Exchange (ETDEWEB)

    Neiser, Andreas; Gradl, Wolfgang [Institut fuer Kernphysik, Johann-Joachim-Becher-Weg 45, Mainz (Germany); Collaboration: TRB3-Collaboration

    2014-07-01

    The A2 collaboration at the electron accellerator MAMI in Mainz uses energy-tagged photons to produce light mesons off the nucleon. Its current data acquisition system is the major performance bottleneck under typical trigger conditions. Furthermore, the availability of spare parts is limited, which renders the maintainability for the next decade difficult. Thus, an upgraded system is desirable for A2 to achieve the upcoming experimental goals. For this upgrade, an FPGA-based solution using the TRB3 is being considered. The TRB3 is a multi-purpose 4+1 FPGA board and implements a 4 x 65 + 4 = 264 channel time-to-digital converter (TDC) with 11 ps RMS precision between two channels. It was developed at GSI in Darmstadt including different front-ends for signal discrimination and charge measurements. For the precursor TRB2, a charge-to-digital precision of 0.2 % was shown. Owing to its flexible design, it is an attractive upgrade option for A2. We present the successful integration of the TRB3 into the existing A2 data acquisition system at the trigger and the data read-out interface. First test measurements at our 4π NaI calorimeter Crystal Ball with up to 16 channels yielded promising results. The performance of the TRB3 platform seems to be sufficient for the future requirements of A2. An outlook on upscaling and deploying the system is given.

  17. Ultra sensitive sea water radioactivity monitoring system. Autonomous low power consumption equipped with wireless data communication

    International Nuclear Information System (INIS)

    Following the recognition of their usefulness by the States and the scientific community, the automatic water monitoring networks were developed again to be able to measure sea water. For that purpose they had to be fully autonomous, have low power consumption (solar panels power supply), use wireless communicating (satellite, GSM, Radio) and be very sensitive (few Bq/m3). It is important to note that radioactivity detection in sea has many constraints: The detection system sensitivity must be very high because of the dilution factor of the ocean. The analysis method has to be adapted: the detection of very low levels of artificial contamination is made difficult due to the natural radioactivity in seawater (i.e., more than 10 kBq of 40K/m3). The system has to be completely autonomous, 'wireless'. Additional conventional measuring probes must be connected to the system to increase its interest (pH, t deg, salinity, position, meteorology). The system maintenance must be very limited (1/year). Wind and corrosion resistance must be high. The probe must be installed on a buoy. Moreover, some improvements are needed to allow: Amplification Gain drifts due to NaI sensitivity to t deg to be compensated. Net peak area computation in a specific energy range. Interference correction to prevent false alarms due to natural radiation. Very long counting time. (author)

  18. Holdup Measurement System II (HMSII): Version 2.1. User's guide and software documentation

    International Nuclear Information System (INIS)

    The Holdup Measurement System II (HMSII) software is a database management package for doing Holdup Measurements. It is based on the generalized geometry holdup (GGH) methodology taught in the US Department of Energy Safeguards Technology Training Program, ''Nondestructive Assay of Special Nuclear Materials Holdup.'' This program was developed and taught by Los Alamos National Laboratory (LANL). The HMSII was developed as a joint effort between LANL and the Oak Ridge Y-12 Plant, managed for the US Department of Energy by Lockheed Martin Energy Systems, Inc. The system is designed specifically for use with three types of Multichannel Analyzer (MCA): a Davidson Portable MultiChannel Analyzer (MCA); a EG ampersand G Ortec MicroNOMAD (μNOMAD); or a new Miniature Modular MultiChannel Analyzer (M3CA) under development at LANL. It is also designed assuming a 512 channel spectrum from a low resolution (e.g., NaI) detector measuring Uranium or Plutonium. Another important hardware component of the system is a portable bar code reader (also called a DataLogger or Trakker), by Intermec Corporation. The 944X series and the JANUS 2OXX series readers are compatible models with the HMSII. The JANUS series is a bar code reader which is also a 386 compatible palmtop PC with MS-DOS 5.0 built-in. Both series readers are programmable and control all the aspects of field holdup data collection from the MCAs

  19. Operational Data Report C&GS DR-8, Seismic Reflection Profiles Northern Bering Sea (NODC Accession 7000753)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A series of seismic reflection profiles were taken aboard the USC&GSS SURVEYOR during the summer of 1969 as part of a general continental shelf survey in the...

  20. A Three-Dimensional Variational Data Assimilation System on a Cubed Sphere Grid

    Science.gov (United States)

    Kwon, In-Hyuk; Song, Hyo-Jong; Kwun, Jihye; Kim, Sangil; Ha, Ji-Hyun

    2015-04-01

    A 3DVAR system has been developed for a cubed-sphere grid (CSG) model and recently implemented to Korea Institute of Atmospheric Prediction systems (KIAPS) Integrated Model based on HOMME dynamical core (KIM-SH). We devised a spectral transformation method which enables spherical harmonic functions to be represented on the CSG points without horizontal interpolation. The 3DVAR system contains a background error covariance model which generates a static or ensemble background error covariance to represent uncertainty of background. In the background error covariance modeling, the spectral transformation and Eigen decomposition play roles as horizontal and vertical filters, respectively. The parameter transformation using linear and nonlinear balances and Helmholtz decomposition is conducted directly on CGS as well. As a result of the parameter transformation, the model variables such as zonal wind, meridional wind, temperature, specific humidity and surface pressure are respectively transformed to control variables such as streamfunction, velocity potential, unbalanced temperature, specific humidity, and unbalanced surface pressure. To evaluate the performance of the 3DVAR system, observing system simulation experiments (OSSEs) were conducted using KIM-SH with ne30np4 (about 1 degree resolution). We assumed that the model run of KIM-SH with a year spin-up is true and designated as a nature. The root mean square differences (RMSD) between model results and the nature show significant reduction in the analysis compared to the background, and the results also show better forecast skill during 72 h forecast period. The assimilation results of real observation with conventional data such as Sonde, surface wind, temperature and pressure, and aircraft also will be represented at conference.

  1. Radioiodide uptake in melanoma cells after transfer of human NaI symporter gene

    International Nuclear Information System (INIS)

    To obtain human sodium/iodide symporter gene cDNA for studying its potential ability as a radioiodide treatment for melanoma, the hNIS gene cDNA was amplified with total RNA from human thyroid tissue by RT-PCR. The hNIS cDNA was inserted into cloning vector pUCm-T and subcloned into eukaryotic expression vector pc-DNA3. The pc-DNA3-hNIS and pc-DNA3 were transduced into melanoma cells (B16) by electroporation, and two cell lines termed B16-A and B16-B respectively were established. The uptake and efflux of iodide was examined in vitro. The three cell lines (B16-A, B16-B, B16) were injected subcutaneously into the right flank of C57 mice. Biodistribution study and tumor imaging were performed when the tumor reached approximately 10 mm in diameter. The cloned hNIS cDNA sequence was identical with the published sequence. Two novel cell lines named B16-A containing pc-DNA3-hNIS and B16-B containing pc-DNA3 only were established. The resultant cell line B16-A accumulated 17 and 19 times more radioiodide in vitro than B16 and B16-B respectively. The iodide uptake reached the half-maximal level within 10 min, and reached a plateau at 30 min. The efflux of iodide was also rapid (T1/2eff=10 min). The imaging shows in vivo uptake in expected sites including the salivary glands, thyroid, stomach, and hNIS-transduced tumor, whereas the nontransduced tumor was not visualized. The %ID/g of B16-A tumors at 1,2,4,12 and 24h after injection of 125I were 12.22 ± 0.71, 10.91 ± 0.72, 8.73 ± 0.99, 1.24 ± 0.29, and 0.19 ± 0.03, respectively, which were significantly higher percentages than those for controlling tumors, p1/2 was about 6 h. Our preliminary data indicate that the transduction of the hNIS gene per se is sufficient to induce iodide transport in melanoma cells both in vitro and in vivo, but T1/2eff is short. (authors)

  2. Radioiodide uptake in melanoma cells after transfer of human NaI symporter gene

    Institute of Scientific and Technical Information of China (English)

    CHEN Li-Bo; ZHU Rui-Sen; LU Han-Kui; YU Yong-Li; LUO Quan-Yong; HUANG Fang; FEI Jian; GUO Li-He

    2004-01-01

    To obtain human sodium/iodide symporter gene cDNA for studying its potential ability as a radioiodide treatment for melanoma, the hNIS gene cDNA was amplified with total RNA from human thyroid tissue by RT-PCR.The hNIS cDNA was inserted into cloning vector pUCm-T and subcloned into eukaryotic expression vector pc-DNA3.The pc-DNA3-hNIS and pc-DNA3 were transduced into melanoma cells (B 16) by electroporation, and two cell lines termed B 16-A and B16-B respectively were established. The uptake and efflux of iodide was examined in vitro. The three cell lines (B16-A, B16-B, B16) were injected subcutaneously into the right flank of C57 mice. Biodistribution study and tumor imaging were performed when the tumor reached approximately 10mm in diameter. The cloned hNIS cDNA sequence was identical with the published sequence. Two novel cell lines named 16-A containing pc-DNA3-hNIS and B16-B containing pc-DNA3 only were established. The resultant cell line B16-A accumulated 17and 19 times more radioiodide in vitro than B 16 and B 16-B respectively. The iodide uptake reached the half-maximal level within 10 min, and reached a plateau at 30 min. The efflux of iodide was also rapid (T1/2cff=10min). The imaging shows in vivo uptake in expected sites including the salivary glands, thyroid, stomach, and hNIS-transduced tumor,whereas the nontransduced tumor was not visualized. The %ID/g of B 16-A tumors at 1, 2, 4, 12, and 24h after injection of 125I were 12.22±0.71, 10.91±0.72, 8.73±0.99, 1.24±0.29, and 0.19±0.03, respectively, which were signifi cantly higher percentages than those for controlling tumors, p<0.01. However, biologic T1/2 was about 6 h. Our preliminary data indicate that the transduction of the hNIS gene per se is sufficient to induce iodide transport in melanoma cells both in vitro and in vivo, but T1/2eff is short.

  3. Measuring radioactivity level in various types of rice using NaI (Tl) detector

    OpenAIRE

    Laith A. Najam; Nada F. Tawfiq; Fouzey H. Kitha

    2015-01-01

    A study of long- lived gamma emitting radionuclides in rice consumed in Nineveh Province (IRAQ) were performed. The study targeted the natural radionuclides 226Ra, 232Th and 40K .The rice samples originated from seven different countries. NaI(Tl) detector was used to measure the radionuclides level. The radioactivity concentrations of 226Ra, 232Th and 40K ranged from 51.15 to 109.26 Bq/kg,13.67 to 71.97 Bq/kg and 231.87 to 691.71Bq/kg. In order to evaluate the radiological hazard of the na...

  4. The NAi Effect: Museological Institutions and the Construction of Architectural Discourse

    OpenAIRE

    Figueiredo, Sergio Miguel

    2014-01-01

    While historically, institutions shaping architectural discourse have been primarily academic, recently, architecture museums and institutes have emerged as increasingly influential platforms in furthering architectural debate. As nexus of architectural knowledge, these institutions have become particularly operative in contemporary society, primarily by involving a wide audience. By not only engaging the concerns of a broad audience, but allowing a broad audience to engage with the stakes, p...

  5. NaI Measurements of Plutonium & Other Sources with the INL Coin

    Energy Technology Data Exchange (ETDEWEB)

    Karpius, Peter Joseph [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-09-06

    This report is a presentation for the NEOD training course at SNL. Its purpose is to summarize the effects of the INL coin on gamma ray spectra for 60Co, 137Cs, and plutonium. Spectra recorded with and without the INL Coin illustrate how transmission plays a role in the dose-ratio factors written on the coin.

  6. Proton-induced radioactivity in NaI (Tl) scintillation detectors

    Science.gov (United States)

    Fishman, G. J.

    1977-01-01

    Radioactivity induced by protons in sodium iodide scintillation crystals were calculated and directly measured. These data are useful in determining trapped radiation and cosmic-ray induced, background-counting rates in spaceborne detectors.

  7. Measuring radioactivity level in various types of rice using NaI (Tl detector

    Directory of Open Access Journals (Sweden)

    Laith A. Najam

    2015-03-01

    Full Text Available A study of long- lived gamma emitting radionuclides in rice consumed in Nineveh Province (IRAQ were performed. The study targeted the natural radionuclides 226Ra, 232Th and 40K .The rice samples originated from seven different countries. NaI(Tl detector was used to measure the radionuclides level. The radioactivity concentrations of 226Ra, 232Th and 40K ranged from 51.15 to 109.26 Bq/kg,13.67 to 71.97 Bq/kg and 231.87 to 691.71Bq/kg. In order to evaluate the radiological hazard of the natural radioactivity, radium equivalent activity, gamma absorbed dose rate, internal and external hazard indices , gamma index and finally alpha index have been calculated . Hence rice consumption in Nineveh province (IRAQ is radiologically safe for the presence of the investigated radionuclides.

  8. Development of systems of analysis in industrial processes with XRF. A technology transfer alternative

    International Nuclear Information System (INIS)

    The FRX Laboratory's experience in developing a unit of analysis by excitation with a radioisotope source is described, with a discussion of its advantages, limitations, types of existing units in the market, use, values and state-of-the-art. The evolution of mining and metallurgical processes has led to the development of new technologies that provide quick and precise control of control and analysis operations, avoiding loss of raw material, chemical reagents, waste of materials and time, to obtain a better quality and purer product. The system developed by the FRX Laboratory is relatively low cost compared to other equipment that is available in the market, and it focuses on single element analysis in hydrometallurgical processes. This system uses a NaI (T1) detector with a beryllium window, related electronics, monitor and printer, which controls the operation automatically using an adequate program for taking samples, measuring, analysis, printing results, changing samples, etc. The sampling is continuous, so it does not have to be taken or prepared chemically. This system can extrapolate to other more complex ones, using new kinds of detectors with higher resolution, more modern electronics, and new multichannel cards. The development of this kind of equipment in Chile means that dependence on foreign technology can be avoided by replacing expensive imported equipment, creating our own technology and transferring it to the domestic market, and even generating income by exporting these units and opening new development prospects (au)

  9. Nucleation and capture of condensible airborne contaminants in an aqueous scrubbing system

    International Nuclear Information System (INIS)

    The fate of condensible contaminants in an aqueous scrubbing system was evaluated. Knowledge of the behavior of volatile fission product compounds is important in evaluating the effectiveness of emergency air cleaning systems proposed for use in containment systems of breeder reactor plants. When a high temperature air stream passes through a spray quench chamber, very large cooling rates occur in the drop boundary layers. These large cooling rates cause large supersaturations in airborne concentrations of condensible contaminants, and one predicts that most condensation would take place through homogeneous nucleation. The very small particles formed would agglomerate, and attach to sodium aerosol particles which would be present. In the study the overall removal efficiency of volatile fission product species (typified by NaI, SeO2, and Sb2O3) in an air cleaning train (quench chamber, venturi scrubber, and fibrous bed) was theoretically evaluated. The overall removal efficiency of condensible materials was found to be lower than that for sodium compound aerosols because the freshly condensed particles would be smaller in size. For a base case, a removal efficiency of 99.97 percent was predicted for condensible materials. The fibrous bed scrubber exhibited superior particle removal characteristics for small particles compared to the quench chamber and venturi scrubber. Its removal efficiency exceeded 97 percent for even the most penetrating particle size (about 0.4 micron aerodynamic diameter). Therefore, all condensible fission products would be removed with efficiencies exceeding 97 percent

  10. Gamma ray attenuation in a developed borate glassy system

    International Nuclear Information System (INIS)

    Measurements and calculations of gamma ray attenuation coefficients in glass barriers of xBaO–5ZnO–5MgO–14Na2O–-1Li2O–(75−x)B2O3, previously prepared by the melt-quenching technique [1], were performed for γ-ray of energies 121.8, 244.7, 344.14, 661.66, 778.7, 974, 1086.7, 1173.24, 1332.5, and 1407.9 keV; which emitted from 152Eu, 137Cs, and 60Co radioactive gamma ray sources. The transmitted γ-rays were detected by 3″×3″ and 5″×5″ NaI (Tl) scintillation γ-ray spectrometers, and a highly calibrated survey meter. The mass attenuation coefficients of γ-rays (σ(E)) were deduced from the attenuation curves, while the WinXCom computer program (version 3.1) was used to calculate the mass attenuation coefficients of γ-rays for such energies at different barium concentrations of a glassy system. A good agreement between both experimental and theoretical results was achieved as well as results obtained by other workers in similar field. - Highlights: • Design new glass system can be used as nuclear radiation shielding material. • Three different systems were used to measure γ-ray attenuation coefficients. • The γ-ray attenuation coefficients in this glass system were measured for 10 γ-energy lines. • Good agreement between experimental, theoretical, and results by other workers have been achieved. • Improvement of σ and HVL by increasing BaO concentration up to 50% in our glassy system

  11. Catalytic Diversity in Alkaline Hydrothermal Vent Systems on Ocean Worlds

    Science.gov (United States)

    Cameron, Ryan D.; Barge, Laura; Chin, Keith B.; Doloboff, Ivria J.; Flores, Erika; Hammer, Arden C.; Sobron, Pablo; Russell, Michael J.; Kanik, Isik

    2016-10-01

    Hydrothermal systems formed by serpentinization can create moderate-temperature, alkaline systems and it is possible that this type of vent could exist on icy worlds such as Europa which have water-rock interfaces. It has been proposed that some prebiotic chemistry responsible for the emergence of life on Earth and possibly other wet and icy worlds could occur as a result ofredox potential and pH gradients in submarine alkaline hydrothermal vents (Russell et al., 2014). Hydrothermal chimneys formed in laboratory simulations of alkaline vents under early Earth conditions have precipitate membranes that contain minerals such as iron sulfides, which are hypothesized to catalyze reduction of CO2 (Yamaguchi et al. 2014, Roldan et al. 2014) leading to further organic synthesis. This CO2 reduction process may be affected by other trace components in the chimney, e.g. nickel or organic molecules. We have conducted experiments to investigate catalytic properties of iron and iron-nickel sulfides containing organic dopants in slightly acidic ocean simulants relevant to early Earth or possibly ocean worlds. We find that the electrochemical properties of the chimney as well as the morphology/chemistry of the precipitate are affected by the concentration and type of organics present. These results imply that synthesis of organics in water-rock systems on ocean worlds may lead to hydrothermal precipitates which can incorporate these organic into the mineral matrix and may affect the role of gradients in alkaline vent systems.Therefore, further understanding on the electroactive roles of various organic species within hydrothermal chimneys will have important implications for habitability as well as prebiotic chemistry. This work is funded by NASA Astrobiology Institute JPL Icy Worlds Team and a NAI Director's Discretionary Fund award.Yamaguchi A. et al. (2014) Electrochimica Acta, 141, 311–318.Russell, M. J. et al. (2014), Astrobiology, 14, 308-43.Roldan, A. (2014) Chem. Comm

  12. A model system using confocal fluorescence microscopy for examining real-time intracellular sodium ion regulation.

    Science.gov (United States)

    Lee, Jacqueline A; Collings, David A; Glover, Chris N

    2016-08-15

    The gills of euryhaline fish are the ultimate ionoregulatory tissue, achieving ion homeostasis despite rapid and significant changes in external salinity. Cellular handling of sodium is not only critical for salt and water balance but is also directly linked to other essential functions such as acid-base homeostasis and nitrogen excretion. However, although measurement of intracellular sodium ([Na(+)]i) is important for an understanding of gill transport function, it is challenging and subject to methodological artifacts. Using gill filaments from a model euryhaline fish, inanga (Galaxias maculatus), the suitability of the fluorescent dye CoroNa Green as a probe for measuring [Na(+)]i in intact ionocytes was confirmed via confocal microscopy. Cell viability was verified, optimal dye loading parameters were determined, and the dye-ion dissociation constant was measured. Application of the technique to freshwater- and 100% seawater-acclimated inanga showed salinity-dependent changes in branchial [Na(+)]i, whereas no significant differences in branchial [Na(+)]i were determined in 50% seawater-acclimated fish. This technique facilitates the examination of real-time changes in gill [Na(+)]i in response to environmental factors and may offer significant insight into key homeostatic functions associated with the fish gill and the principles of sodium ion transport in other tissues and organisms. PMID:27235170

  13. Electrical transport study of potato starch-based electrolyte system-II

    Energy Technology Data Exchange (ETDEWEB)

    Tiwari, Tuhina; Kumar, Manindra [Department of Physics (Mahila Mahavidyalay), Banaras Hindu University, Varanasi (India); Srivastava, Neelam, E-mail: neelamsrivastava_bhu@yahoo.co.in [Department of Physics (Mahila Mahavidyalay), Banaras Hindu University, Varanasi (India); Srivastava, P.C. [Department of Physics, Banaras Hindu University, Varanasi (India)

    2014-03-15

    Highlights: • Cheap and bio-degradable polymer electrolyte. • High conductivity ∼ 9.59 × 10{sup −3} Scm{sup −1}. • Detailed ion dynamics stud. -- Abstract: Glutaraldehyde (GA) crosslinked potato starch, after mixing with sodium iodide (NaI), resulted in electrolyte film having conductivity (σ) ∼ 10{sup −3} S/cm and ionic transference number (t{sub ion}) ≥ 0.99. Out of two preparation mediums, namely methanol and acetone, methanol based electrolyte system seems to be better. Super-linear power law (SLPL) phenomenon is observed in MHz frequency range and both lattice site potential and coulomb cage potential due to neighboring mobile charge carriers seems to be responsible for existence of SLPL, and variation of power law exponent ‘n’ with salt concentration. These ion dynamics results are supported by dielectric data also. Estimated number of charge carriers ‘N’ and mobility ‘μ’ are discussed with reference to different variants (medium of preparation, plasticizer, and salt content). Material's conductivity strongly depends on humidity.

  14. Efficacy of Navigation in Skull Base Surgery using Composite Computer Graphics of Magnetic Resonance and Computed Tomography Images

    OpenAIRE

    Hayashi, Nakamasa; Kurimoto, Masanori; Hirashima, Yutaka; Ikeda, Hiroaki; Shibata, Takashi; Tomita, Takahiro; Endo, Shunro

    2001-01-01

    The efficacy of a neurosurgical navigation system using three-dimensional composite computer graphics (CGs) of magnetic resonance (MR) and computed tomography (CT) images was evaluated in skull base surgery. Three-point transformation was used for integration of MR and CT images. MR and CT image data were obtained with three skin markers placed on the patient's scalp. Volume-rendering manipulations of the data produced three-dimensional CGs of the scalp, brain, and lesions from the MR images,...

  15. Entrepreneurial orientation and corporate governance structures at the firm level in the South African oil and gas industry

    OpenAIRE

    Vincent B. Molokwu; Jose Barreria; Boris Urban

    2013-01-01

    Orientation: Corporate governance systems (CGS) have been observed as one of the most important structures and mechanisms that regulate the relationships between executives and shareholders. By having well-defined and established CGS, company board members and executives are able to shape company vision and increase managerial commitment towards formulating strategies that espouse an entrepreneurial orientation (EO). Firms with high levels of EO tend to be innovative and encourage creati...

  16. High angular momentum decay properties of the compound systems 100Ru and 160Er formed in 50Ti-induced reactions

    International Nuclear Information System (INIS)

    The γ-decay from the evaporation residues formed in the 50Ti + 50Ti → 100Rusup(*) and 50Ti + 110Pd → 160Ersup(*) reactions with angular momentum up to the maximum these systems can sustain, has been studied utilizing a sum spectrometer in coincidence with two smaller NaI detectors. The excitation energy and average angular momentum are determined as a function of γ-ray cascade energy. Simultaneously, the structure of the γ-ray continuum and its multipolarity is obtained as a function of these two correlated parameters. From the centroid energy of quadrupole transitions between states confined to a narrow spin region an effective moment of inertia is extracted. For the products of the 100Ru compound system a large deformation, is indicated by a moment of inertia as large as 1.3 times the spherical rigid-body value for I approx. > 40 h/2π. This is considerably lower in angular momentum than the transition to triaxial shape predicted for a rotating liquid drop. The moment of inertia for the residues of the 160Er compound system is 5-15% larger than the spherical rigid body value. For both systems studied a considerable part of the decay is due to dipole transitions of rather low energy (< 1 MeV) even at the highes spins where a quadrupole bump is well developed. (orig.)

  17. Analysis of Oseltamivir Resistance Substitutions in Influenza Virus Glycoprotein Neuraminidase using a Lentivirus-Based Surrogate Assay System

    Institute of Scientific and Technical Information of China (English)

    Jennifer Tisoncik-Go; Katie S Cordero; Lijun Rong

    2013-01-01

    Influenza A virus poses a great threat to global health,and oseltamivir (trade marked as Tamiflu),which targets influenza surface glycoprotein neuraminidase (NA),is used clinically as a major anti-influenza treatment.However,certain substitutions in NA can render an influenza virus resistant to this drug.In this study,using a lentiviral pseudotyping system,which alleviates the safety concerns of studying highly pathogenic influenza viruses such as avian influenza H5N 1,that utilizes influenza surface glycoproteins (hemagglutinin or HA,and NA) and an HIV-core combined with a luciferase reporter gene as a surrogate assay,we first assessed the functionality of NA by measuring pseudovirion release in the absence or presence of oseltamivir.We demonstrated that oseltamivir displays a dose-dependent inhibition on NA activity.In contrast,a mutant NA (H274Y) is more resistant to oseltamivir treatment.In addition,the effects of several previously reported substitution NA mutants were examined as well.Our results demonstrate that this lentivirus-based pseudotyping system provides a quick,safe,and effective way to assess resistance to neuraminidase inhibitors.And we believe that as new mutations appear in influenza isolates,their impact on the effectiveness of current and future anti-NA can be quickly and reliably evaluated by this assay.

  18. Optimization of an RSD x-ray backscatter system for detecting defects in the space shuttle external tank thermal foam insulation

    Science.gov (United States)

    Shedlock, Daniel; Addicott, Benjamin; Dugan, Edward T.; Jacobs, Alan M.

    2005-09-01

    A new Compton x-ray backscatter imaging technique, backscatter radiography by selective detection (RSD), has been used for inspection of the spray-on-foam-insulation (SOFI) on the space shuttle external tank. RSD employs detection of selected backscatter field components, by using specially designed detectors with movable detector collimators, to achieve high image contrast. The optimization study utilized test panels with simulated and natural defects in the spray-on foam insulation. Some of the test panels include structural features, stiffener-stringers and connection flanges, which were bolted to an aluminum base plate representative of the external tank. The SOFI was then layed down over the base plate and structural components with thicknesses varying from a few tens of mm up to a few hundred mm. The simulated defects range in cross-sectional size from 6 × 6 mm to 50 × 50 mm. Natural defects including roll-over voids and knit-line delaminations have a wide range of sizes, geometries, and orientations with a minimum critical cross-sectional size of 6 mm. Imaging registration is currently obtained at 0.05 seconds per 2 mm pixel, or about 19 minutes per 0.093 m2(1 ft2). The current system is being evaluated to enhance the detection of natural defects of a minimal critical size. Monte Carlo (MC) simulations with MCNP5 are being used to determine the history and corresponding spectrum of the detected photons that are responsible for improving defect image contrast. The simulation results are used in combination with experimental data to select optimal detector configurations. Detector configurations are sensitive not only to the type of defect being detected, but also the defect's depth in SOFI, distance from aluminum substrate, and defect orientation. Additional parameters including detector type, detection mode, and x-ray illumination beam size were also evaluated. Both NaI and plastic (BC404) scintillation detectors in pulse and integral mode were used to

  19. Aerial gamma mapping system for characterizing the impact of radioactive deposition on the environment

    International Nuclear Information System (INIS)

    The Commissariat a l'energie atomique has developed an aerial system of gamma cartography called HELINUC. This system makes it possible to establish, within a few hours, a map of radioactivity for areas (several dozens to several hundreds of hectares) by identifying the radioelements present, in a range from the level of natural radioactivity to that of man-made radioactivity resulting from a large scale accident. HELINUC has been operational for about ten years and is part of the French intervention system in the event of a civil or military nuclear accident. The HELINUC system is mounted on a light helicopter (equipped with a NaI detector) and is linked to ground based equipment. HELINUC has been used at the request of the Marine Environment Laboratory (IAEA-MEL), Monaco, to estimate the radioactivity of nine industrial or nuclear sites between Budapest and the Black Sea, as well as that of a stretch of 2000 km of the river banks of the Danube. The paper presents a few main results of this measurement campaign (carried out in early 1992), particularly those concerning the Paks nuclear power station in Hungary. The cartography of the Turnu Severin site (Romania) was a good demonstration of the method; the maps obtained showed the presence of spots of 137Cs from the accident at the Chernobyl nuclear power plant. Use of three-dimensional digitized maps in support of isoactivity maps improves the readability of the maps and increases the quantity of available information. Furthermore, this mapping method is applicable to environmental monitoring for the purpose of surveillance of industrial and agricultural pollution. The results obtained with the HELINUC system during the different measurement campaigns have shown that the aerial gamma cartography method is a rapid, powerful and efficient technique for measuring and controlling the radioactivity in the environment of industrial or nuclear sites. (author). 6 refs

  20. Aerial Measuring System (AMS)/Israel Atomic Energy Commission (IAEC) Joint Comparison Study Report

    Energy Technology Data Exchange (ETDEWEB)

    Wasiolek, P. [National Security Technologies, LLC. (NSTec), Mercury, NV (United States); Halevy, I. [Israel Atomic Energy Commission (IAEC), Yavne (Israel)

    2013-12-23

    Under the 13th Bilateral Meeting to Combat Nuclear Terrorism conducted on January 8–9, 2013, the committee approved the development of a cost-effective proposal to conduct a Comparison Study of the Aerial Measuring System (AMS) of the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) and Israel Atomic Energy Commission (IAEC). The study was to be held at the Remote Sensing Laboratory (RSL), Nellis Air Force Base, Las Vegas, Nevada, with measurements at the Nevada National Security Site (NNSS). The goal of the AMS and the IAEC joint survey was to compare the responses of the two agencies’ aerial radiation detection systems to varied radioactive surface contamination levels and isotopic composition experienced at the NNSS, and the differing data processing techniques utilized by the respective teams. Considering that for the comparison both teams were using custom designed and built systems, the main focus of the short campaign was to investigate the impact of the detector size and data analysis techniques used by both teams. The AMS system, SPectral Advanced Radiological Computer System, Model A (SPARCS-A), designed and built by RSL, incorporates four different size sodium iodide (NaI) crystals: 1" × 1", 2" × 4" × 4", 2" × 4" ×16", and an “up-looking” 2" × 4" × 4". The Israel AMS System, Air RAM 2000, was designed by the IAEC Nuclear Research Center – Negev (NRCN) and built commercially by ROTEM Industries (Israel) and incorporates two 2" diameter × 2" long NaI crystals. The operational comparison was conducted at RSL-Nellis in Las Vegas, Nevada, during week of June 24–27, 2013. The Israeli system, Air RAM 2000, was shipped to RSL-Nellis and mounted together with the DOE SPARCS on a DOE Bell-412 helicopter for a series of aerial comparison measurements at local test ranges, including the Desert Rock Airport and Area 3 at the NNSS. A 4-person Israeli team from the IAEC NRCN supported the activity together with 11

  1. 神经行为评价系统在飞行员脑功能评定中的应用研究%Application of neurobehavioral evaluation system for the identification of pilot's cerebral function

    Institute of Scientific and Technical Information of China (English)

    陈勇胜; 贾宏博; 邓学谦; 强东昌; 曹淑玉

    2011-01-01

    目的 探讨神经行为评价系统(neurobehavioral evaluation system-C3,NES-C3)在飞行员脑功能(cerebral function,CF)评定中的应用价值.方法 采用NES-C3评价系统中的情绪状态测试量表(profile of mood status,POMS)(包括紧张-焦虑、愤怒-敌意、疲惫-惰性、忧郁-沮丧、有力-好动、困惑-迷茫6个方面情绪状态),以及记忆扫描、数字检索、视简单反应时、视复杂反应时、目标跟踪、连续操作等6项神经行为能力指数(neurobehavioral ability index,NAI)评定飞行员的脑功能.分别测试45名飞行员[飞行员组,年龄25~31岁,平均(27.6±2.5)岁]和45名非飞行员[对照组,本科生及研究生,年龄25~30岁,平均(27.5±2.6)岁]在无环境干扰及模拟喷气发动机噪声干扰环境下的CF状态,判断测试的差别.结果 无论有无干扰,飞行员组"有力-好动"项评分始终高于对照组,(t=9.74、12.52,P<0.05),而对照组的"紧张-焦虑"项评分始终高于飞行员组(t=10.46、14.25,P<0.05).在有噪声干扰时,对照组的POMS 6项指标均显著增加(t=2.85~6.33,P<0.05),飞行员组的POMS 6项指标除"紧张-焦虑"和"有力-好动"项增加外(t=4.12、5.92,P<0.05),余无显著差异.无干扰条件下,飞行员组有4项NAI测试指标高于对照组(t=2.91~10.55,P<0.05).而在干扰前后,飞行员组的6项NAI测试指标均无统计学差异,而对照组则在干扰后均显著降低(t=5.24~29.24,P<0.05),且均低于飞行员组(t=4.07~28.41,P<0.05).结论 NES-C3神经行为评价系统对飞行员CF鉴定具有实际应用价值.%Objective To explore the application of neurobehavioral evaluation system-C3(NES-C3) for pilot's cerebral function (CF) evaluation. Methods The characters of CF under interference of simulated jet engine noise and neurobehavioral ability index (NAI) were investigated in 45 military pilots [(27.6±2.5) yr] (as pilot group) and in 45 college students [(27.5±2.6) yr] (as control group) by

  2. A compartmentalized mathematical model of the β1-adrenergic signaling system in mouse ventricular myocytes.

    Directory of Open Access Journals (Sweden)

    Vladimir E Bondarenko

    Full Text Available The β1-adrenergic signaling system plays an important role in the functioning of cardiac cells. Experimental data shows that the activation of this system produces inotropy, lusitropy, and chronotropy in the heart, such as increased magnitude and relaxation rates of [Ca(2+]i transients and contraction force, and increased heart rhythm. However, excessive stimulation of β1-adrenergic receptors leads to heart dysfunction and heart failure. In this paper, a comprehensive, experimentally based mathematical model of the β1-adrenergic signaling system for mouse ventricular myocytes is developed, which includes major subcellular functional compartments (caveolae, extracaveolae, and cytosol. The model describes biochemical reactions that occur during stimulation of β1-adrenoceptors, changes in ionic currents, and modifications of Ca(2+ handling system. Simulations describe the dynamics of major signaling molecules, such as cyclic AMP and protein kinase A, in different subcellular compartments; the effects of inhibition of phosphodiesterases on cAMP production; kinetics and magnitudes of phosphorylation of ion channels, transporters, and Ca(2+ handling proteins; modifications of action potential shape and duration; magnitudes and relaxation rates of [Ca(2+]i transients; changes in intracellular and transmembrane Ca(2+ fluxes; and [Na(+]i fluxes and dynamics. The model elucidates complex interactions of ionic currents upon activation of β1-adrenoceptors at different stimulation frequencies, which ultimately lead to a relatively modest increase in action potential duration and significant increase in [Ca(2+]i transients. In particular, the model includes two subpopulations of the L-type Ca(2+ channels, in caveolae and extracaveolae compartments, and their effects on the action potential and [Ca(2+]i transients are investigated. The presented model can be used by researchers for the interpretation of experimental data and for the developments of

  3. Detection system and processing of signals originated by backscattering gamma radiation

    International Nuclear Information System (INIS)

    In order to answer to the requirements of some groups of work destined to carry out studies about soil density and position of steel bars in reinforced cement, using NaI solid scintillation detectors, the electronics required by this type of detectors has been designed and implemented. In this first phase, the construction and test of the 5 modules that constitute the spectrometry chain-which has a digital control: high-tension source, amplifier, control interphase, analog to digital converter (ADC) and multichannel analyzers (MCA) storage logic-were finished. For the development of the operation tests, a compatible computer was used, while the construction of the control logic was finished. This control logic, linked to the implemented analog phases, will provide a totally portable system. The system was evaluated, generating the spectra of some well-known radioactive samples using a 2 inch x 2 inch scintillation detector, having as a result a total resolution of 8,6% (related to the photopeak of Cs-137) The ADC Wilkinson type has a maximum resolution of 2048 channels. Because of the fulfillment of the above-mentioned studies with backscattered beams, all the related electronics was designed considering this criterion. That is why neither base line restoration circuits nor piling-up rebound circuits were included in the amplifier, because the radiation beam to be studied had low activity. By the same reason and in order to avoid the unnecessary complexity and the high cost of the electronics circuits, the ADC operates at a relatively low frequency of 16 MHz. Afterwards, it is expected to interconnect all the system to a laptop compatible computer. In this way, we would have a higher versatility for the modification of the operation parameters of the spectrometry chain during the field tests that may be carried out. (author). 26 refs., 29 tabs., 121 figs

  4. 基于Red5和Flex的地面运行控制系统设计%Design of Ground Operation Control System Based on Red5 & Flex

    Institute of Scientific and Technical Information of China (English)

    李春林; 周桂林; 侯毅

    2011-01-01

    According to the ground production of Beijing Branch of China Southern Airlines, a production monitoring ground system was designed. The system is mainly used for ground monitoring of aircraft loading and production activities at the airfield, and use the event mechanism to coordinate the production work of SOC,CGS,cargo and aircraft maintenance factory. The system will provide strong support for SOC's work and has great significance for the protection of normal flights and investigation of delays. This innovative design proposed the online games conception and architecture to deal the production problems, and satisfy the frontline operational units' strong demand of real-time, ease use and ease deployment.%根据南航北京分公司的地面生产情况,提出了一套完善的地面生产监控系统设计方案.地面生产监控系统主要用于监控飞机预落及在机坪上的生产活动,并采用事件机制协调SOC、CGS、货运及飞机维修厂的生产工作.该系统将对运行指挥部的地面航班监控提供强力支持,对保障航班正常性及延误原因调查具有重要意义.提出以网络在线游戏的设计理念和架构处理企业生产问题,从而满足一线运行单位对信息系统即时性、易用性和易部署性的强烈需求.

  5. Excitability of the T-tubular system in rat skeletal muscle: roles of K+ and Na+ gradients and Na+-K+ pump activity.

    Science.gov (United States)

    Nielsen, O B; Ørtenblad, N; Lamb, G D; Stephenson, D G

    2004-05-15

    Strenuous exercise causes an increase in extracellular [K(+)] and intracellular Na(+) ([Na(+)](i)) of working muscles, which may reduce sarcolemma excitability. The excitability of the sarcolemma is, however, to some extent protected by a concomitant increase in the activity of muscle Na(+)-K(+) pumps. The exercise-induced build-up of extracellular K(+) is most likely larger in the T-tubules than in the interstitium but the significance of the cation shifts and Na(+)-K(+) pump for the excitability of the T-tubular membrane and the voltage sensors is largely unknown. Using mechanically skinned fibres, we here study the role of the Na(+)-K(+) pump in maintaining T-tubular function in fibres with reduced chemical K(+) gradient. The Na(+)-K(+) pump activity was manipulated by changing [Na(+)](i). The responsiveness of the T-tubules was evaluated from the excitation-induced force production of the fibres. Compared to control twitch force in fibres with a close to normal intracellular [K(+)] ([K(+)](i)), a reduction in [K(+)](i) to below 60 mM significantly reduced twitch force. Between 10 and 50 mM Na(+), the reduction in force depended on [Na(+)](i), the twitch force at 40 mM K(+) being 22 +/- 4 and 54 +/- 9% (of control force) at a [Na(+)](i) of 10 and 20 mM, respectively (n= 4). Double pulse stimulation of fibres at low [K(+)](i) showed that although elevated [Na(+)](i) increased the responsiveness to single action potentials, it reduced the capacity of the T-tubules to respond to high frequency stimulation. It is concluded that a reduction in the chemical gradient for K(+), as takes place during intensive exercise, may depress T-tubular function, but that a concomitant exercise-induced increase in [Na(+)](i) protects T-tubular function by stimulating the Na(+)-K(+) pump. PMID:15034125

  6. Development of a computational system for monitoring data management in vivo of the radionuclides in human body; Desenvolvimento de um sistema computacional para gerenciamento de dados de monitoracao in vivo de radionuclideos no corpo humano

    Energy Technology Data Exchange (ETDEWEB)

    Reis, Arlene A. dos; Lucena, Eder A. de; Dantas, Ana Leticia A.; Dantas, Bernardo M., E-mail: arlene@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ),Rio de Janeiro, RJ (Brazil)

    2014-07-01

    The management of in vivo monitoring process of internal contamination by radionuclides in human beings request a set of steps ranging from the spectrum acquisition to reporting. The spectrum analysis is the identification and quantification of radioactive materials present in organs and individual's body tissues submitted to monitoring procedures. The Body Counter Unit of IRD performs in vivo measurements emitting radionuclide photons in the 10-3000 keV energy range, using NaI type scintillation detectors (Tl) 8” x 4” and 3” x 3” and as semiconductor detectors type HPGe. The measuring system uses the Canberra Genie 2000 software for the acquisition of spectra with 1024 channels related to their respective energies. The counting are distributed in the spectrum due to the energy of the photons emitted by radionuclides of interest. The SIGMIV program (System for Management of in vivo monitoring), developed in MS Visual Basic 2010 accesses the spectrum after it is converted into an EXCEL spreadsheet. This program uses a bank Data developed in MS-Access to store information associated with each measurement, as counting and calibration parameters. SIGMIV generates a report containing personal information, activity and radionuclides of interest present in the body, associated with respective uncertainties and minimum activity detectable. The program SIGMIV optimized monitoring procedures 'in vivo', showing that is flexible, reliable and easy to handle, thus becoming an important tool for development routine in In vivo Monitoring Laboratory of IRD.

  7. Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field

    OpenAIRE

    CINELLI GIORGIA; TOSITTI Laura; Mostacci, Domiziano; BARE Jonathan

    2015-01-01

    In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated. A calibration based on Monte Carlo simulation of detector response is proposed, to render reliable quantitative analysis practicable in field campaigns. The method is developed with reference to contact geometry, in which measurements are taken placing the NaI(Tl) probe directly against the solid source to be analyzed. The Monte Carlo code us...

  8. Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field.

    Science.gov (United States)

    Cinelli, Giorgia; Tositti, Laura; Mostacci, Domiziano; Baré, Jonathan

    2016-05-01

    In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated. A calibration based on Monte Carlo simulation of detector response is proposed, to render reliable quantitative analysis practicable in field campaigns. The method is developed with reference to contact geometry, in which measurements are taken placing the NaI(Tl) probe directly against the solid source to be analyzed. The Monte Carlo code used for the simulations was MCNP. Experimental verification of the calibration goodness is obtained by comparison with appropriate standards, as reported. On-site measurements yield a quick quantitative assessment of natural radioactivity levels present ((40)K, (238)U and (232)Th). On-site gamma spectrometry can prove particularly useful insofar as it provides information on materials from which samples cannot be taken. PMID:26913974

  9. Heuristic approach for peak regions estimation in gamma-ray spectra measured by a NaI detector

    Institute of Scientific and Technical Information of China (English)

    ZHU Meng-Hua; LIU Liang-Gang; YOU Zhong; XU Ao-Ao

    2009-01-01

    In this paper, a heuristic approach based on Slavic's peak searching method has been employed to estimate the width of peak regions for background removing. Synthetic and experimental data are used to test this method. With the estimated peak regions using the proposed method in the whole spectrum, we find it is simple and effective enough to be used together with the Statistics-sensitive Nonlinear Iterative Peak-Clipping method.

  10. Deconvolution of gamma energy spectra from NaI (Tl) detector using the Nelder-Mead zero order optimisation method

    International Nuclear Information System (INIS)

    The aim of this work is to develop a method for gamma ray spectrum deconvolution from NaI(Tl) detector. Deconvolution programs edited with Matlab 7.6 using Nelder-Mead method were developed to determine multiplet shape parameters. The simulation parameters were: centroid distance/FWHM ratio, Signal/Continuum ratio and counting rate. The test using synthetic spectrum was built with 3σ uncertainty. The tests gave suitable results for centroid distance/FWHM ratio≥2, Signal/Continuum ratio ≥2 and counting level 100 counts. The technique was applied to measure the activity of soils and rocks samples from the Anosy region. The rock activity varies from (140±8) Bq.kg-1 to (190±17)Bq.kg-1 for potassium-40; from (343±7)Bq.Kg-1 to (881±6)Bq.kg-1for thorium-213 and from (100±3)Bq.kg-1 to (164 ±4) Bq.kg-1 for uranium-238. The soil activity varies from (148±1) Bq.kg-1 to (652±31)Bq.kg-1 for potassium-40; from (1100±11)Bq.kg-1 to (5700 ± 40)Bq.kg-1 for thorium-232 and from (190 ±2) Bq.kg-1 to (779 ±15) Bq-1 for uranium -238. Among 11 samples, the activity value discrepancies compared to high resolution HPGe detector varies from 0.62% to 42.86%. The fitting residuals are between -20% and +20%. The Figure of Merit values are around 5%. These results show that the method developed is reliable for such activity range and the convergence is good. So, NaI(Tl) detector combined with deconvolution method developed may replace HPGe detector within an acceptable limit, if the identification of each nuclides in the radioactive series is not required

  11. A Freedom-seeking Stranger - An Interpretation of Santosh in Nai-paul’s OneOutofMan

    Institute of Scientific and Technical Information of China (English)

    ZHONG Xiu-yan

    2016-01-01

    The immigrant Santosh, the protagonist in Naipaul’s OneOutofMany, features strong loneliness and freedom-seek-ing desire. Psychoanalytical criticism is employed to interpret the inner world of the character Santosh based on close reading of the text. This would help readers deepen their understanding of Naipaul’s works and enhance the concerns about the psychic world of urban migrants.

  12. Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field.

    Science.gov (United States)

    Cinelli, Giorgia; Tositti, Laura; Mostacci, Domiziano; Baré, Jonathan

    2016-05-01

    In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated. A calibration based on Monte Carlo simulation of detector response is proposed, to render reliable quantitative analysis practicable in field campaigns. The method is developed with reference to contact geometry, in which measurements are taken placing the NaI(Tl) probe directly against the solid source to be analyzed. The Monte Carlo code used for the simulations was MCNP. Experimental verification of the calibration goodness is obtained by comparison with appropriate standards, as reported. On-site measurements yield a quick quantitative assessment of natural radioactivity levels present ((40)K, (238)U and (232)Th). On-site gamma spectrometry can prove particularly useful insofar as it provides information on materials from which samples cannot be taken.

  13. 100 billion Chimera of Tai Zi Nai Group%太子奶的1000亿狂想

    Institute of Scientific and Technical Information of China (English)

    阚世华

    2008-01-01

    连续6年业绩翻番的太子奶已经创造了一个商业奇迹,但掌门人李途纯再次立下豪言——“十年之后,1000亿的年销售额是太子奶集团一定要实现的目标。”

  14. Search for exotic nuclear transition by using the large volume NaI detector of ELEGANTS V

    International Nuclear Information System (INIS)

    The authors studied elastic and inelastic scattering of dark matter with nuclei in huge NaI(Tl) scintillator. The light output response f was measured by fast neutron scattering. The result was fI=0.05±0.02 for I recoil and fNa=0.4±0.2 for Na recoil. The low noise ( similar eq5keV) and low BG ( similar 8counts/day/keV/kg) was achieved by huge (36.5kg/module) NaI(Tl) scintillator. Strong limit for inelastic excitation of 127I nuclei was studied and strong limit on the local halo density of spin coupled dark matter candidate was derived. ((orig.))

  15. A Comparison of X-Ray Microdiffraction and Coherent Gradientsensing in Measuring Discontinuous Curvatures in Thin Film-Substratesystems

    Energy Technology Data Exchange (ETDEWEB)

    Brown, M.A.; Park, T.-S.; Rosakis, A.; Ustundag, E.; Huang, Y.; Tamura, N.; Valek, B.C.

    2006-01-01

    Background. The Coherent Gradient Sensor (CGS) is a shearing interferometer which has been proposed for the rapid, full-field measurement of deformation states (slopes and curvatures) in thin film-wafer substrate systems, and for the subsequent inference of stresses in the thin films. This approach needs to be verified using a more well-established but time-consuming grain orientation and stress measurement tool, X-ray microdiffraction. Method of Approach. Both CGS and XRD are used to measure the deformation state of the same W film/Si wafer at room temperature. CGS provides a global, wafer-level measurement of slopes while XRD provides a local micromeasurement of lattice rotations. An extreme case of a circular Si wafer with a circular W film island in its center is used because of the presence of discontinuous system curvatures across the wafer. The results are also compared with a theoretical model based on elastic plate analysis of the axisymmetric biomaterial film-substrate system. Results and Conclusions. Slope and curvature measurements by XRD and by CGS compare very well with each other and with theory. The favorable comparison demonstrates that wafer-level CGS metrology provides a quick and accurate alternative to other measurements. It also demonstrates the accuracy of plate theory in modeling thin film-substrate systems, even in the presence of curvature discontinuities.

  16. Calibration procedures for in vivo sodium iodide spectrometry of plutonium and americium in the human lung

    International Nuclear Information System (INIS)

    This paper describes the calibration techniques and associated error analysis for the in vivo measurement by NaI spectrometry of heavy elements in the lung, specifically plutonium and americium. A very brief description of the instrumentation system is included

  17. Generalized conjugate gradient squared

    Energy Technology Data Exchange (ETDEWEB)

    Fokkema, D.R.; Sleijpen, G.L.G. [Utrecht Univ. (Netherlands)

    1994-12-31

    In order to solve non-symmetric linear systems of equations, the Conjugate Gradient Squared (CGS) is a well-known and widely used iterative method. In practice the method converges fast, often twice as fast as the Bi-Conjugate Gradient method. This is what you may expect, since CGS uses the square of the BiCG polynomial. However, CGS may suffer from its erratic convergence behavior. The method may diverge or the approximate solution may be inaccurate. BiCGSTAB uses the BiCG polynomial and a product of linear factors in an attempt to smoothen the convergence. In many cases, this has proven to be very effective. Unfortunately, the convergence of BiCGSTAB may stall when a linear factor (nearly) degenerates. BiCGstab({ell}) is designed to overcome this degeneration of linear factors. It generalizes BiCGSTAB and uses both the BiCG polynomial and a product of higher order factors. Still, CGS may converge faster than BiCGSTAB or BiCGstab({ell}). So instead of using a product of linear or higher order factors, it may be worthwhile to look for other polynomials. Since the BiCG polynomial is based on a three term recursion, a natural choice would be a polynomial based on another three term recursion. Possibly, a suitable choice of recursion coefficients would result in method that converges faster or as fast as CGS, but less erratic. It turns out that an algorithm for such a method can easily be formulated. One particular choice for the recursion coefficients leads to CGS. Therefore one could call this algorithm generalized CGS. Another choice for the recursion coefficients leads to BiCGSTAB. It is therefore possible to mix linear factors and some polynomial based on a three term recursion. This way one may get the best of both worlds. The authors will report on their findings.

  18. Study of regional respiratory mechanics using xenon-133 and a multidetector system

    International Nuclear Information System (INIS)

    Routine assessment of overall flow measured at the mouth during the forced vital capacity (FVC) maneuver fails to detect early and localized lung disease. The authors developed a method using 133Xe and a multidetector system to analyse regional dynamics at each zone of the lungs during the FVC maneuver. Data gathered from twenty-one normal subjects were used as a baseline for assessment of regional impairment in lung dynamics in patients. The technique consists in having the subject perform a FVC maneuver using a spirometer containing a 133Xe gas mixture (1.5 - 2.0 mCi/litre). Before the FVC maneuver, the subject is instructed to rebreathe in closed circuit with the spirometer until equilibration. Regional flow indices during the FVC maneuver are derived from the decrease in regional radioactivity monitored at each of the eight lung zones by a pair of NaI detectors, one in the front collinear with one in the back. Regional flow indices were consistently higher at the bases and at the apices than at the mid-lung zones. This distribution of regional flow indices may reflect differences in regional airway resistance and the regional difference in pressure applied by the expiratory muscles during the FVC maneuver. Changing in relative geometry between chest and lung in dynamic conditions may be another factor determining the higher flow indices at the base. Further investigation is necessary for analysis of the significance of the findings. However, data as generated, being reproducible from one FVC to another in the normal group, could be used as baseline values for detection and location of localized lung disease in many conditions. (author)

  19. Efficacy of navigation in skull base surgery using composite computer graphics of magnetic resonance and computed tomography images

    Energy Technology Data Exchange (ETDEWEB)

    Hayashi, Nakamasa; Kurimoto, Masanori; Hirashima, Yutaka; Ikeda, Hiroaki; Shibata, Takashi; Tomita, Takahiro; Endo, Shunro [Toyama Medical and Pharmaceutical Univ. (Japan)

    2001-07-01

    The efficacy of a neurosurgical navigation system using three-dimensional composite computer graphics (CGs) of magnetic resonance (MR) and computed tomography (CT) images was evaluated in skull base surgery. Three-point transformation was used for integration of MR and CT images. MR and CT image data were obtained with three skin markers placed on the patient's scalp. Volume-rendering manipulations of the data produced three-dimensional CGs of the scalp, brain, and lesions from the MR images, and the scalp and skull from the CT. Composite CGs of the scalp, skull, brain, and lesion were created by registering the three markers on the three-dimensional rendered scalp images obtained from MR imaging and CT in the system. This system was used for 14 patients with skull base lesions. Three-point transformation using three-dimensional CGs was easily performed for multimodal registration. Simulation of surgical procedures on composite CGs aided in comprehension of the skull base anatomy and selection of the optimal approaches. Intraoperative navigation aided in determination of actual spatial position in the skull base and the optimal trajectory to the tumor during surgical procedures. (author)

  20. Proceedings of Sea to Sky Geotechnique 2006 : The 59. Canadian Geotechnical Conference and 7. Joint CGS-IAH-CNC Groundwater Specialty Conference

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    This conference was attended by members of the Canadian and international geotechnical communities to exchange information on research and development that affects all sectors of geotechnical engineering, applied geology and hydrogeology. A wide range of topics were addressed, including special sessions on infrastructure and geotechnical mining methods that are of particular local or national relevance to the fields of geotechnical and groundwater engineering. The Canadian Geotechnical Society sessions covered oil mechanics and foundation engineering; engineering geology and geophysical investigation; seismology and earthquake engineering; landslide and slope engineering; soft soils engineering; forestry geotechnical issues; rock mechanics and rock engineering; mining; aging infrastructure; geo-environmental engineering; geosynthetics and cold regions geotechnology. The sessions of the International Association of Hydrogeologists covered groundwater protection and sustainability; groundwater and slope failures; fractured rock hydrogeology; mine water geochemistry and hydrology; hydrogeology of the Fraser Lowlands and data collection successes and failures. Many themes associated with major civil engineering works were also explored. The conference featured approximately 250 presentations, of which 17 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  1. Intra-accumbens injections of the adenosine A(2A) agonist CGS 21680 affect effort-related choice behavior in rats

    OpenAIRE

    Stopper, Colin M.; WORDEN, LILA T.; Mingote, Susana; Port, Russell G.; Salamone, John D.; Font Hurtado, Laura; Pereira, Mariana; Farrar, Andrew M.

    2008-01-01

    Rationale: Nucleus accumbens dopamine (DA) participates in the modulation of instrumental behavior, including aspects of behavioral activation and effort-related choice behavior. Rats with impaired accumbens DA transmission reallocate their behavior away from food-reinforced activities that have high response requirements, and instead select less-effortful types of food-seeking behavior. Although accumbens DA is considered a critical component of the brain circuitry regulating eff...

  2. Proceedings of GeoEdmonton 2008 : the 61. Canadian geotechnical conference and 9. joint CGS/IAH-CNC groundwater conference : a heritage of innovation

    Energy Technology Data Exchange (ETDEWEB)

    Martin, D. [Alberta Univ., Edmonton, AB (Canada); Skirrow, R. [Alberta Transportation, Edmonton, AB (Canada); Froese, C. [Alberta Geological Survey, Edmonton, AB (Canada)] (comps.) (and others)

    2008-07-01

    This conference provided a forum for more than 500 delegates from industry, government universities and research centres to share their professional knowledge on research and development that affects all sectors of geotechnical engineering, applied geology and hydrogeology. Accomplishments in the geoenvironmental field were also highlighted. The geotechnical sessions were entitled: pile foundations and load testing; excavations and special foundation issues; reinforced soil and soil-structure interactions; advances in modelling, constitutive issues; advances in modelling, consolidation and other applications; advances in modelling, discrete elements and slope stability; embankments and dams; landfills and barriers; fundamental soil mechanics; soil mechanics and ground movement; GIS and remote sensing; landslides and slopes; cone penetration tests and liquefaction assessment; rock mechanics; engineering geology; geoenvironmental sustainability; oilsand and petroleum geomechanics; and, oilsand tailings. The hydrogeology sessions were entitled: paste tailings and cemented paste backfill; acid mine drainage and containment issues; contaminated sites; cold regions; instrumentation, insitu testing and field applications; transportation geotechniques; urban geohazards; staff retention and motivation; geotechnical education for modern practice; regional issues and studies; policy, regulation and conservation; groundwater and development; groundwater and surface water interactions; groundwater and terrain interactions; aquicludes and aquitards; general hydrogeology; and, geochemistry and contaminant hydrogeology. The conference featured more than 250 presentations, of which 42 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  3. Temperatures stabilization of a field instrument for uranium enrichment measurements

    Energy Technology Data Exchange (ETDEWEB)

    Shepard, R.; Wawrowski, S.; Charland, M. [Canberra Industries, Inc., Meriden, CT (United States)] [and others

    1996-12-31

    Enrichment measurements with sodium iodide (NaI) detectors are hampered with a number of problems related to the temperature behavior of NaI crystals and the associated electronics. This problem is of particular concern in applications requiring the use of fixed regions of interest; such applications are used by the International Atomic Energy Agency (IAEA) in Vienna. The Canberra IMCA is a new portable instrument for such applications which can use either a NaI or a Ge detector. In developing the IMCA to meet the IAEA requirements for NaI detectors, Canberra has designed a system with a new temperature stabilization method capable of maintaining the detector stability at 0.5% over a temperature range of -10 to +50{degrees}C. This paper includes a detailed description of this IMCA temperature stabilization system, as well as test results for a range of temperatures using uranium standards.

  4. Multi-mission Satellite Management

    Science.gov (United States)

    Jamilkowski, M. L.; Teter, M. A.; Grant, K. D.; Dougherty, B.; Cochran, S.

    2015-12-01

    NOAA's next-generation environmental satellite, the Joint Polar Satellite System (JPSS) replaces the current Polar-orbiting Operational Environmental Satellites (POES). JPSS satellites carry sensors which collect meteorological, oceanographic, climatological, and solar-geophysical observations of the earth, atmosphere, and space. The first JPSS satellite was launched in 2011 and is currently NOAA's primary operational polar satellite. The JPSS ground system is the Common Ground System (CGS), and provides command, control, and communications (C3) and data processing (DP). A multi-mission system, CGS provides combinations of C3/DP for numerous NASA, NOAA, DoD, and international missions. In preparation for the next JPSS satellite, CGS improved its multi-mission capabilities to enhance mission operations for larger constellations of earth observing satellites with the added benefit of streamlining mission operations for other NOAA missions. CGS's multi-mission capabilities allows management all of assets as a single enterprise, more efficiently using ground resources and personnel and consolidating multiple ground systems into one. Sophisticated scheduling algorithms compare mission priorities and constraints across all ground stations, creating an enterprise schedule optimized to mission needs, which CGS executes to acquire the satellite link, uplink commands, downlink and route data to the operations and data processing facilities, and generate the final products for delivery to downstream users. This paper will illustrate the CGS's ability to manage multiple, enterprise-wide polar orbiting missions by demonstrating resource modeling and tasking, production of enterprise contact schedules for NOAA's Fairbanks ground station (using both standing and ad hoc requests), deconflicting resources due to ground outages, and updating resource allocations through dynamic priority definitions.

  5. System Budgets

    DEFF Research Database (Denmark)

    Jeppesen, Palle

    1996-01-01

    The lecture note is aimed at introducing system budgets for optical communication systems. It treats optical fiber communication systems (six generations), system design, bandwidth effects, other system impairments and optical amplifiers.......The lecture note is aimed at introducing system budgets for optical communication systems. It treats optical fiber communication systems (six generations), system design, bandwidth effects, other system impairments and optical amplifiers....

  6. Metal-ceramic composite coatings obtained by new thermal spray technologies: Cold Gas Spray (CGS) and its wear resistance; Recubrimientos de materiales compuestos metal-ceramico obtenidos por nuevas tecnologias de proyeccion termica: Proyeccion fria (CGS) y su resistencia al desgaste

    Energy Technology Data Exchange (ETDEWEB)

    Miguel, J. M.; Vizcaino, S.; Dosta, S.; Cinca, N.; Lorenzana, C.; Guilemany, J. M.

    2011-07-01

    In this paper, composite coatings composed by an aluminum bronze metal matrix and a hard ceramic alumina phase obtained by cold spray technique were obtained in order to increase the tribological properties of the pure bronze coatings. The different processes that occur during the coating formation (hardening of the metal particles, fragmentation of the ceramic particles, shot peening on the metal substrate, etc) are described and their effects on the coating properties are studied. Wear tests consisting on Ball-on-Disk tests, abrasion Rubber Wheel tests and erosion tests as well as microhardness and adhesion tests are carried out and the results are correlated with the ceramic phase content of the coatings. It can be concluded that the hard ceramic phase increases the tribological properties with relation of the initial bronze coating. Finally, main wear mechanisms during the tribological tests are described. (Author) 21 refs.

  7. Relationships of systemic IgG antibody response and lesions caused by Oestrus ovis L. larvae (Diptera: Oestridae in infected goats - Interacciones de la respuesta sistémica de anticuerpos IgG y las lesiones causadas por larvas de Oestrus ovis L. (Diptera: Oestridae en cabras infectadas

    Directory of Open Access Journals (Sweden)

    Angulo-Valadez, Carlos E

    2009-11-01

    Full Text Available SummaryThis is the abstract, Oestrus ovis (Diptera: Oestridae is a nasosinusalparasite of sheep and goats that affects the wellbeing andperformance of the hosts. Our objectives were (1 to analyzeassociations of host phenotypic characteristics (age, weight, sex, O.ovis larval characteristics, systemic antibody IgG response, andlesions in sinusal and horn cavities in naturally infected goats, and (2to estimate the serodiagnostic value of salivary gland antigens foroestrosis diagnosis by ELISA test in goats naturally exposed to O.ovis infection. O. ovis third-instar larvae (L3 were collected, thendissected to remove the salivary gland and to obtain the antigenssource (SGC. A total of 251 goats were necropsied. The host’sweight, age and sex were individually recorded. The sinusal and horncavities were examined for the presence of O. ovis larvae. Cavitarylesions and lesion intensity in infected goats (n=38 were scoredaccording to a severity table. Sera (n=125 were analyzed by ELISAto detect specific humoral IgG responses. Annual prevalence of goatoestrosis was 73.9%. A low positive association (r=0.38, P<0.05was observed between larval burden and severity of sinus lesions. Ingeneral, high sensitivity (90.82% and low specificity (25.93% wereobserved in ELISA. As conclusions, major pathological damages caused by O. ovis were associated with the presence of early L2 andearly L3 larvae, probably enhanced by larval molting. SGC antigenswere proven valuable antigens for oestrosis diagnosis by ELISA test ingoats.ResumenOestrus ovis (Diptera: Oestridae es un parásito nasosinusal de lascabras y las ovejas que afecta el bienestar y el rendimiento de sushospedadores. Nuestros objetivos fueron (1 analizar las asociacionesde características fenotípicas del hospedador (peso, sexo, edad,características larvarias de O. ovis, la respuesta de IgG, y las lesionesen las cavidades sinusales y cornuales de cabras infectadas, y (2estimar el valor de los antígenos de

  8. Entrepreneurial orientation and corporate governance structures at the firm level in the South African oil and gas industry

    Directory of Open Access Journals (Sweden)

    Vincent B. Molokwu

    2013-03-01

    Full Text Available Orientation: Corporate governance systems (CGS have been observed as one of the most important structures and mechanisms that regulate the relationships between executives and shareholders. By having well-defined and established CGS, company board members and executives are able to shape company vision and increase managerial commitment towards formulating strategies that espouse an entrepreneurial orientation (EO. Firms with high levels of EO tend to be innovative and encourage creative initiatives in new products and technology developments.Research purpose: In an emerging economy such as South Africa, one of the primary goals of an organisation is growth and good governance, which can be achieved through wellgoverned structures and continuous innovation in the face of challenges. This study identified potential links between the multidimensional constructs of CGS and EO at the firm level in the South African oil and gas industry.Motivation for the study: One of the greatest challenges faced by organisations when implementing CGS is to ensure compliance.Research design, approach and method: Board members and senior decision-makers were surveyed in the South African oil and gas industry, using a structured questionnaire. A series of correlational analyses were used to determine the strength of relationships between the dimensions of EO and CGS.Main findings: By drawing extensively on existing theory on EO, this study found that the different dimensions of CGS have a significant and positive relationship with each of the EO dimensions – innovation, risk-taking and proactiveness.Practical/managerial implications: Corporate boards supportive of entrepreneurship must provide appropriate reward systems, top management support, explicit goals and appropriate organisational values which signal to employees that entrepreneurial behaviour action is desirable. Practitioners should scrutinise their governance structures in their organisations to ensure

  9. A Study on Grid-Square Statistics Based Estimation of Regional Electricity Demand and Regional Potential Capacity of Distributed Generators

    Science.gov (United States)

    Kato, Takeyoshi; Sugimoto, Hiroyuki; Suzuoki, Yasuo

    We established a procedure for estimating regional electricity demand and regional potential capacity of distributed generators (DGs) by using a grid square statistics data set. A photovoltaic power system (PV system) for residential use and a co-generation system (CGS) for both residential and commercial use were taken into account. As an example, the result regarding Aichi prefecture was presented in this paper. The statistical data of the number of households by family-type and the number of employees by business category for about 4000 grid-square with 1km × 1km area was used to estimate the floor space or the electricity demand distribution. The rooftop area available for installing PV systems was also estimated with the grid-square statistics data set. Considering the relation between a capacity of existing CGS and a scale-index of building where CGS is installed, the potential capacity of CGS was estimated for three business categories, i.e. hotel, hospital, store. In some regions, the potential capacity of PV systems was estimated to be about 10,000kW/km2, which corresponds to the density of the existing area with intensive installation of PV systems. Finally, we discussed the ratio of regional potential capacity of DGs to regional maximum electricity demand for deducing the appropriate capacity of DGs in the model of future electricity distribution system.

  10. System Identification

    NARCIS (Netherlands)

    Keesman, K.J.

    2011-01-01

    Summary System Identification Introduction.- Part I: Data-based Identification.- System Response Methods.- Frequency Response Methods.- Correlation Methods.- Part II: Time-invariant Systems Identification.- Static Systems Identification.- Dynamic Systems Identification.- Part III: Time-varying Syste

  11. Level and Chemical Composition of Cryoglobulins in Schizophrenia

    Science.gov (United States)

    Khoyetsyan, Aren; Boyajyan, Anna; Melkumova, Maya

    The blood samples of 40 schizophrenic patients were tested for the presence of cryoglobulins (Cgs) and composition of Cgs was examined. The elevated levels of type III Cgs, containing complement components, were detected in all study subjects.

  12. 75 FR 51490 - Notice; Applications and Amendments to Facility Operating Licenses Involving Proposed No...

    Science.gov (United States)

    2010-08-20

    ... implemented to identify, evaluate, and mitigate cyber attacks up to and including the design basis cyber attack threat, thereby achieving high assurance that CGS's digital computer and communications systems... be filed in accordance with the NRC E-Filing rule (72 FR 49139, August 28, 2007). The...

  13. Immune System

    Science.gov (United States)

    ... Can I Help a Friend Who Cuts? Immune System KidsHealth > For Teens > Immune System Print A A ... put us out of commission. What the Immune System Does The immune (pronounced: ih-MYOON) system, which ...

  14. The influence of the Pinyin and Zhuyin writing systems on the acquisition of Mandarin word forms by native English speakers

    Directory of Open Access Journals (Sweden)

    Rachel eHayes-Harb

    2016-06-01

    Full Text Available The role of written input in second language (L2 phonological and lexical acquisition has received increased attention in recent years. Here we investigated the influence of two factors that may moderate the influence of orthography on L2 word form learning: (i whether the writing system is shared by the native language and the L2, and (ii if the writing system is shared, whether the relevant grapheme-phoneme correspondences are also shared. The acquisition of Mandarin via the Pinyin and Zhuyin writing systems provides an ecologically valid opportunity to explore these factors. We first asked whether there is a difference in native English speakers’ ability to learn Pinyin and Zhuyin grapheme-phoneme correspondences. In Experiment 1, native English speakers assigned to either Pinyin or Zhuyin groups were exposed to Mandarin words belonging to one of two conditions: in the ‘congruent’ condition, the Pinyin forms are possible English spellings for the auditory words (e.g., for [nai]; in the ‘incongruent’ condition, the Pinyin forms involve a familiar grapheme representing a novel phoneme (e.g., for [ɕiou]. At test, participants were asked to indicate whether auditory and written forms matched; in the crucial trials, the written forms from training (e.g., 'xiu' were paired with possible English pronunciations of the Pinyin written forms (e.g., [ziou]. Experiment 2 was identical to Experiment 1 except that participants additionally saw pictures depicting word meanings during the exposure phase, and at test were asked to match auditory forms with the pictures. In both experiments the Zhuyin group outperformed the Pinyin group due to the Pinyin group’s difficulty with ‘incongruent’ items. A third experiment confirmed that the groups did not differ in their ability to perceptually distinguish the relevant Mandarin consonants (e.g., [ɕ] from the foils (e.g., [z], suggesting that the findings of Experiments 1 and 2 can be attributed to

  15. The Influence of the Pinyin and Zhuyin Writing Systems on the Acquisition of Mandarin Word Forms by Native English Speakers

    Science.gov (United States)

    Hayes-Harb, Rachel; Cheng, Hui-Wen

    2016-01-01

    The role of written input in second language (L2) phonological and lexical acquisition has received increased attention in recent years. Here we investigated the influence of two factors that may moderate the influence of orthography on L2 word form learning: (i) whether the writing system is shared by the native language and the L2, and (ii) if the writing system is shared, whether the relevant grapheme-phoneme correspondences are also shared. The acquisition of Mandarin via the Pinyin and Zhuyin writing systems provides an ecologically valid opportunity to explore these factors. We first asked whether there is a difference in native English speakers' ability to learn Pinyin and Zhuyin grapheme-phoneme correspondences. In Experiment 1, native English speakers assigned to either Pinyin or Zhuyin groups were exposed to Mandarin words belonging to one of two conditions: in the “congruent” condition, the Pinyin forms are possible English spellings for the auditory words (e.g., for [nai]); in the “incongruent” condition, the Pinyin forms involve a familiar grapheme representing a novel phoneme (e.g., for [ɕiou]). At test, participants were asked to indicate whether auditory and written forms matched; in the crucial trials, the written forms from training (e.g., ) were paired with possible English pronunciations of the Pinyin written forms (e.g., [ziou]). Experiment 2 was identical to Experiment 1 except that participants additionally saw pictures depicting word meanings during the exposure phase, and at test were asked to match auditory forms with the pictures. In both experiments the Zhuyin group outperformed the Pinyin group due to the Pinyin group's difficulty with “incongruent” items. A third experiment confirmed that the groups did not differ in their ability to perceptually distinguish the relevant Mandarin consonants (e.g., [ɕ]) from the foils (e.g., [z]), suggesting that the findings of Experiments 1 and 2 can be attributed to the effects of

  16. The Influence of the Pinyin and Zhuyin Writing Systems on the Acquisition of Mandarin Word Forms by Native English Speakers.

    Science.gov (United States)

    Hayes-Harb, Rachel; Cheng, Hui-Wen

    2016-01-01

    The role of written input in second language (L2) phonological and lexical acquisition has received increased attention in recent years. Here we investigated the influence of two factors that may moderate the influence of orthography on L2 word form learning: (i) whether the writing system is shared by the native language and the L2, and (ii) if the writing system is shared, whether the relevant grapheme-phoneme correspondences are also shared. The acquisition of Mandarin via the Pinyin and Zhuyin writing systems provides an ecologically valid opportunity to explore these factors. We first asked whether there is a difference in native English speakers' ability to learn Pinyin and Zhuyin grapheme-phoneme correspondences. In Experiment 1, native English speakers assigned to either Pinyin or Zhuyin groups were exposed to Mandarin words belonging to one of two conditions: in the "congruent" condition, the Pinyin forms are possible English spellings for the auditory words (e.g., for [nai]); in the "incongruent" condition, the Pinyin forms involve a familiar grapheme representing a novel phoneme (e.g., for [ɕiou]). At test, participants were asked to indicate whether auditory and written forms matched; in the crucial trials, the written forms from training (e.g., ) were paired with possible English pronunciations of the Pinyin written forms (e.g., [ziou]). Experiment 2 was identical to Experiment 1 except that participants additionally saw pictures depicting word meanings during the exposure phase, and at test were asked to match auditory forms with the pictures. In both experiments the Zhuyin group outperformed the Pinyin group due to the Pinyin group's difficulty with "incongruent" items. A third experiment confirmed that the groups did not differ in their ability to perceptually distinguish the relevant Mandarin consonants (e.g., [ɕ]) from the foils (e.g., [z]), suggesting that the findings of Experiments 1 and 2 can be attributed to the effects of orthographic

  17. Thermal systems; Systemes thermiques

    Energy Technology Data Exchange (ETDEWEB)

    Lalot, S. [Valenciennes Univ. et du Hainaut Cambresis, LME, 59 (France); Lecoeuche, S. [Ecole des Mines de Douai, Dept. GIP, 59 - Douai (France)]|[Lille Univ. des Sciences et Technologies, 59 - Villeneuve d' Ascq (France); Ahmad, M.; Sallee, H.; Quenard, D. [CSTB, 38 - Saint Martin d' Heres (France); Bontemps, A. [Universite Joseph Fourier, LEGI/GRETh, 38 - Grenoble (France); Gascoin, N.; Gillard, P.; Bernard, S. [Laboratoire d' Energetique, Explosion, Structure, 18 - Bourges (France); Gascoin, N.; Toure, Y. [Laboratoire Vision et Robotique, 18 - Bourges (France); Daniau, E.; Bouchez, M. [MBDA, 18 - Bourges (France); Dobrovicescu, A.; Stanciu, D. [Bucarest Univ. Polytechnique, Faculte de Genie Mecanique (Romania); Stoian, M. [Reims Univ. Champagne Ardenne, Faculte des Sciences, UTAP/LTM, 51 (France); Bruch, A.; Fourmigue, J.F.; Colasson, S. [CEA Grenoble, Lab. Greth, 38 (France); Bontemps, A. [Universite Joseph Fourier, LEGI/GRETh, 38 - Grenoble (France); Voicu, I.; Mare, T.; Miriel, J. [Institut National des Sciences Appliquees (INSA), LGCGM, IUT, 35 - Rennes (France); Galanis, N. [Sherbrooke Univ., Genie Mecanique, QC (Canada); Nemer, M.; Clodic, D. [Ecole des Mines de Paris, Centre Energetique et Procedes, 75 (France); Lasbet, Y.; Auvity, B.; Castelain, C.; Peerhossaini, H. [Nantes Univ., Ecole Polytechnique, Lab. de Thermocinetiquede Nantes, UMR-CNRS 6607, 44 (France)

    2005-07-01

    This session about thermal systems gathers 26 articles dealing with: neural model of a compact heat exchanger; experimental study and numerical simulation of the thermal behaviour of test-cells with walls made of a combination of phase change materials and super-insulating materials; hydraulic and thermal modeling of a supercritical fluid with pyrolysis inside a heated channel: pre-dimensioning of an experimental study; energy analysis of the heat recovery devices of a cryogenic system; numerical simulation of the thermo-hydraulic behaviour of a supercritical CO{sub 2} flow inside a vertical tube; mixed convection inside dual-tube exchangers; development of a nodal approach with homogenization for the simulation of the brazing cycle of a heat exchanger; chaotic exchanger for the cooling of low temperature fuel cells; structural optimization of the internal fins of a cylindrical generator; a new experimental approach for the study of the local boiling inside the channels of exchangers with plates and fins; experimental study of the flow regimes of boiling hydrocarbons on a bundle of staggered tubes; energy study of heat recovery exchangers used in Claude-type refrigerating systems; general model of Carnot engine submitted to various operating constraints; the free pistons Stirling cogeneration system; natural gas supplied cogeneration system with polymer membrane fuel cell; influence of the CRN coating on the heat flux inside the tool during the wood unrolling process; transport and mixture of a passive scalar injected inside the wake of a Ahmed body; control of a laser welding-brazing process by infrared thermography; 2D self-adaptative method for contours detection: application to the images of an aniso-thermal jet; exergy and exergy-economical study of an 'Ericsson' engine-based micro-cogeneration system; simplified air-conditioning of telephone switching equipments; parametric study of the 'low-energy' individual dwelling; brief synthesis of

  18. Data Systems vs. Information Systems

    OpenAIRE

    Amatayakul, Margret K.

    1982-01-01

    This paper examines the current status of “hospital information systems” with respect to the distinction between data systems and information systems. It is proposed that the systems currently existing are incomplete data dystems resulting in ineffective information systems.

  19. Multibody Systems

    DEFF Research Database (Denmark)

    Wagner, Falko Jens

    1999-01-01

    Multibody Systems is one area, in which methods for solving DAEs are of special interst. This chapter is about multibody systems, why they result in DAE systems and what kind of problems that can arise when dealing with multibody systems and formulating their corresponding DAE system....

  20. Digestive System

    Science.gov (United States)

    ... 5 Things to Know About Zika & Pregnancy Digestive System KidsHealth > For Parents > Digestive System Print A A ... body can absorb and use. About the Digestive System Almost all animals have a tube-type digestive ...

  1. Respiratory System

    Science.gov (United States)

    ... page from the NHLBI on Twitter. The Respiratory System The respiratory system is made up of organs ... and the muscles that enable breathing. The Respiratory System Figure A shows the location of the respiratory ...

  2. Role of ubiquitin C-terminal hydrolase-L1 in antipolyspermy defense of mammalian oocytes.

    Science.gov (United States)

    Susor, Andrej; Liskova, Lucie; Toralova, Tereza; Pavlok, Antonin; Pivonkova, Katerina; Karabinova, Pavla; Lopatarova, Miloslava; Sutovsky, Peter; Kubelka, Michal

    2010-06-01

    The ubiquitin-proteasome system regulates many cellular processes through rapid proteasomal degradation of ubiquitin-tagged proteins. Ubiquitin C-terminal hydrolase-L1 (UCHL1) is one of the most abundant proteins in mammalian oocytes. It has weak hydrolytic activity as a monomer and acts as a ubiquitin ligase in its dimeric or oligomeric form. Recently published data show that insufficiency in UCHL1 activity coincides with polyspermic fertilization; however, the mechanism by which UCHL1 contributes to this process remains unclear. Using UCHL1-specific inhibitors, we induced a high rate of polyspermy in bovine zygotes after in vitro fertilization. We also detected decreased levels in the monomeric ubiquitin and polyubiquitin pool. The presence of UCHL1 inhibitors in maturation medium enhanced formation of presumptive UCHL1 oligomers and subsequently increased abundance of K63-linked polyubiquitin chains in oocytes. We analyzed the dynamics of cortical granules (CGs) in UCHL1-inhibited oocytes; both migration of CGs toward the cortex during oocyte maturation and fertilization-induced extrusion of CGs were impaired. These alterations in CG dynamics coincided with high polyspermy incidence in in vitro-produced UCHL1-inhibited zygotes. These data indicate that antipolyspermy defense in bovine oocytes may rely on UCHL1-controlled functioning of CGs.

  3. Approach to a system of removal of {sup 131}I of liquid discharges in a health unit of nuclear medicine using {sup 127}I as a reference standard; Planteamiento de un sistema de remocion de {sup 131}I de vertimientos liquidos en una unidad sanitaria de medicina nuclear empleando {sup 127}I como patron de referencia

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, Emeterio; Mayorga, Manuel A., E-mail: ecruzs@ecci.edu.co, E-mail: mmayorgab@ecci.edu.co [Escuela Colombiana de Carreras Industriales (ECCI), Grupo de Investigacion INDETECA (ECCI), Bogota (Colombia); Quiverio, Noelia M.; Villada, Julian D., E-mail: noelia.quiverio@estudiantes.uamerica.edu.co, E-mail: julian.villada@estudiantes.uamerica.edu.co [Fundacion Universidad de America, Grupo de Investigacion INDETECA (ECCI), Bogota (Colombia)

    2013-07-01

    The {sup 131}I prepared as potassium iodide (KI) or sodium iodide (NaI) is given to patients to treat some diseases related to the thyroid gland, in doses of 15 to 30 mCi for hyperthyroidism and 100 to 300 mCi in treatments of thyroid cancer. Up to 80% of the administered activity is discarded by the patient through the body fluids over a period of 24 h; these radioactive waste must be controlled and accordingly the different countries based on radiological impact studies establishing maximum release rates. In Colombia, the Resolution 180005 2010 establishes 1000 Bq/day (2.7027x10{sup -5} Ci /day), 10000 Bq/month (2.7027x10{sup -4} mCi/month) or 100000 Bq/year (2.7027x10{sup -3} mCi/year), this restriction requires implementing waste management methods generated by patients before discharge to the sewage networks. The method of retention of these wastes through tanks, without any treatment generates a high potential risk, therefore, this study shows three alternatives to remove the {sup 131}I in the amount of waste liquids, to generate a small solid residue in secure containers, allowing pouring fluids with radioactive traces without exceeding the limits. The sizing of the system applicable to nuclear medicine services depends on the workload of the service and combines the three methods described here by a control system, which does not require the direct intervention of staff, optimizing safety and radiation protection in the service. (author)

  4. Holdup of O/W emulsion in a packed column for liquid membrane separation of hydrocarbon; Tankasuiso no ekimaku bunri ni okeru jutento nai no emarushon horudo appu

    Energy Technology Data Exchange (ETDEWEB)

    Egashira, R.; Sugimoto, T.; Kawasaki, J. [Tokyo Inst. of Technology, Tokyo (Japan). Faculty of Engineering

    1993-07-10

    Liquid membrane separation of hydrocarbon is an energy saving separation method that is expected of practical use. If the method uses a packed column, the holdup of O/W emulsion affects the effective contact area and residence time of the emulsion. Therefore, this paper describes an attempt to correlate the dynamic emulsion holdup in a packed column in liquid membrane separation of hydrocarbon with property values of the emulsion and external oil phase, and operation variables. The experiment used a mixture of toluene + n - heptane + n - decane for oil phase in the O/W emulsion and saponin aqueous solution for liquid phase (liquid membrane phase). The packed column with an inner diameter of 37 mm used stainless steel McMahon packing. As a result of the experiment, the dynamic emulsion holdup showed a correlation according to the Reynolds number and Galilei number, regardless of whether the emulsion permeates the liquid membrane. The correlation made it possible to estimate in a simple manner the emulsion holdup in the packed column when this separation method is used. 5 refs., 3 figs., 3 tabs.

  5. Raman microspectroscopic study of effects of Na(I) and Mg(II) ions on low pH induced DNA structural changes

    NARCIS (Netherlands)

    Muntean, C.M.; Segers-Nolten, G.M.J.

    2003-01-01

    In this work a confocal Raman microspectrometer is used to investigate the influence of Na+ and Mg2+ ions on the DNA structural changes induced by low pH. Measurements are carried out on calf thymus DNA at neutral pH (7) and pH 3 in the presence of low and high concentrations of Na+ and Mg2+ ions, r

  6. Optimization of the catalytic converter internal flow by using 3D-CFD; Sanjigen nagare kaiseki ni yoru shokubai converter nai nagare no saitekika

    Energy Technology Data Exchange (ETDEWEB)

    Toi, M.; Sugiura, S. [Toyota Motor Corp., Tokyo (Japan)

    1997-10-01

    By using computational fluid dynamics and statistical quality control method, we investigated the contribution of front and rear catalytic converter cone shape for the pressure loss and the partial flow, also led the optimal terms and the predictional formulations efficiently. According to this, we can investigate the optimal position of the catalytic converter from the planning. 8 figs., 6 tabs.

  7. Study on the inside gas flow visualization of oxygen sensor cover; Kashika ni yoru O2 sensor cover nai no gas nagare hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Hocho, S.; Mitsuishi, Y.; Inagaki, M. [Nippon Soken, Inc., Tokyo (Japan); Hamaguchi, S.; Mizusawa, K. [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    In order to make clear the difference of the response time between the oxygen sensors with different protection covers, we visualized gas flow inside of sensor covers by means of two experimental methods: One is `Smoke Suspension Method` using liquid paraffin vapor as the smoke. With smoke suspension method, we detected the streamlines inside of the covers. The other is `Color Reaction Method` using the reaction of phenolphthalein and NH3 gas. With color reaction method, we confirmed the streamline inside of the cover and furthermore detected the difference of the response time of each sensor. 3 refs., 7 figs., 1 tab.

  8. Survey of the radiation by a car borne survey method and γ ray spectrometry by NaI detector in Fukushima prefecture

    International Nuclear Information System (INIS)

    The Tohoku District-off the Pacific Ocean Earthquake and Tsunami caused by the earthquake attacked the Fukushima Dai-ichi Nuclear Power Plant of TEPCO on March 11, 2011. A nuclear accident followed at an unprecedented scale and huge amounts of radioactive material were released into the environment. Distributions of dose rate in Fukushima prefecture were measured on April 18-21 and June 20-22, 2011 by a car borne survey method using a NaI(Tl) scintillation survey meter. The gamma-ray spectrometry by a NaI(Tl) detector was also done at several points. Dose rate near Fukushima Dai-ichi NPP and at Iitate-mura, Fukushima-city was high (1 ∼ >30 μSv/h). So distribution of dose rate is uneven, further investigation is necessary. The gamma-ray peak of I-131, Cs-134 and Cs-137 were mainly detected in gamma-ray spectrum. (author)

  9. Molecular orientation via a dynamically induced pulse-train: Wave packet dynamics of NaI in a static electric field

    DEFF Research Database (Denmark)

    Marquetand, P.; Materny, A.; Henriksen, Niels Engholm;

    2004-01-01

    the charge separation is present, i.e., when the bond-length is large, a strong dipole moment exists and rotational excitation takes place. Upon bond contraction, the then covalently bound molecule does not experience the external field. This scenario repeats itself periodically. Thus, the vibrational...... dynamics causes a situation which is comparable to the interaction of the molecule with a train of pulses where the pulse separation is determined by the vibrational period. (C) 2004 American Institute of Physics....

  10. Flows in a rotor disk rim seal with a nonaxisymmetric mainstream; Hitaisho jikuryuchu no rotor disk rim seal nai no nagare

    Energy Technology Data Exchange (ETDEWEB)

    Sano, M. [Shizuoka Institute of Science and Technology, Shizuoka (Japan); Hasegawa, Y.; Kikuyama, K. [Nagoya University, Nagoya (Japan); Daikoku, T. [Nippon Steel Corp., Tokyo (Japan)

    2000-05-25

    An experimental investigation of fluid flows in a model of gas-turbine rotor disk rim seal has been carried out. The effects of outward throughflow and rotor speed were examined on the distributions of static pressure as well as velocity inside the rim seal when a mainstream was made nonaxisymmetric by stationary vanes. Measurements were made at the mainflow axial Reynolds number of 8.0 x 10{sup 4}. As a radially outward flow is forced to be generated on the rotor by centrifugal force, a radially inward flow due to a mainstream ingestion is originated on the stator of the rim seal when the throughflow rate is decreased beyond the critical value. Once the ingestion occurs locally, the static pressure is increased remarkably just behind the stationary vanes resulting in the circumferentially non-uniform distribution. But the ingestion is suppressed with the increasing throughflow rate and the static pressure distribution tends to be uniform. The critical throughflow rate was found to be about 0.8 times of the outward flow rate caused by a free disk. (author)

  11. 由《埃及古代史》想到夏鼐%Thinking of the tripod of Xia Nai Dynasty from Ancient History of Egypt

    Institute of Scientific and Technical Information of China (English)

    盖双

    2001-01-01

    买书不为阅读只为观赏的,恐怕只有两种人,要么是附庸风雅的暴发户,要么是家境殷实的藏书家。这两种人我都不是,却也有过一番类似的经历。汉译《埃及古代史》不过10万字,买回一两年至今尚未读毕,可它又是我从书架上取出次数最多的一本书,不时拿在手中把玩欣赏。对一本书产生这样的“感情”,在我是从未有过的。当时在旧书摊上发现它后的喜悦,仿佛现在还能感觉到。

  12. Investigation and evaluation of soil pollution with oil products in the most intensively used territories of gaižiūnai military training groun

    OpenAIRE

    Vasarevičius, Saulius; Greičiūtė, Kristina; Šiaulytė, Edita

    2005-01-01

    Pastaruoju metu Lietuvoje ypač aktuali aplinkos taršos problema. Daug dėmesio skiriama teršalų šalinimui iš teritorijų, kuriose ir praeityje, ir pastaruoju metu vyksta aktyvi karinė veikla. Buvusiose įvairios paskirties karinėse bazėse ir specialios paskirties karinėse teritorijose aptinkama organinėmis medžiagomis (nafta ir jos produktais) labai užterštų dirvožemio plotų. Paviršinis dirvožemis yra viena iš pirmųjų gamtinių sistemų, tiesiogiai veikiama bet kokio lygio taršos, jame kaupiasi te...

  13. Auxiliary systems

    International Nuclear Information System (INIS)

    Systems included under the heading ''Reactor Auxillary Systems'' are those immediately involved with the reactor operation. These include the systems for dosing and letdown of reactor coolant, as well as for the chemical dosing, purification and treatment of the reactor coolant and the cooling system in the controlled area. The ancillary systems are mainly responsible for liquid and gaseous treatment and the waste treatment for final storage. (orig.)

  14. Systems effectiveness

    CERN Document Server

    Habayeb, A R

    1987-01-01

    Highlights three principal applications of system effectiveness: hardware system evaluation, organizational development and evaluation, and conflict analysis. The text emphasizes the commonality of the system effectiveness discipline. The first part of the work presents a framework for system effectiveness, partitioning and hierarchy of hardware systems. The second part covers the structure, hierarchy, states, functions and activities of organizations. Contains an extended Appendix on mathematical concepts and also several project suggestions.

  15. Stem system

    Directory of Open Access Journals (Sweden)

    Shajmardanova L.R.

    2008-01-01

    Full Text Available The article shows the stem cells from the point of view of systemic anatomy, where they are united into an entire stem system. This integration shows various advantages for better understanding the stem cells role in the body. Authors, considering functions and action mechanism of stem cells, phylogeny, ontogeny, regulation of functions, explain the base for stem cells system existance. The definition and terminology, age peculiarities, relationship with other systems of organs and differences are offered. The theoretical proof of primary-integrative role of stem system is provided for all other systems in body. Of particular importance is the role of stem system as a link between neural and endocrine systems. The work helps to sistematize data on investigations of stem cells, their entire-system perception, that will ease the goals determining for further research and their clinical use.

  16. Auxiliary systems

    International Nuclear Information System (INIS)

    For a undisturbed reactor operation, the various Auxiliary and Ancillary Systems must function perfectly with the Reactor Coolant System together. While the Auxiliary Systems are directly connected to the Reactor Coolant System and therefore have contact with the Reactor Coolant, the Ancillary Systems perform tasks which do not directly influence reactor operation and in part are necessary exclusively for environment protection. The design criteria of the individual systems are a result of these tasks, especially in relation to availability, operational readiness and probability of failure. (orig.)

  17. The Prognostic Value of a Four-Dimensional CT Angiography-Based Collateral Grading Scale for Reperfusion Therapy in Acute Ischemic Stroke Patients

    Science.gov (United States)

    Zhang, Sheng; Chen, Weili; Tang, Huan; Han, Quan; Yan, Shenqiang; Zhang, Xiaocheng; Chen, Qingmeng; Parsons, Mark; Wang, Shaoshi; Lou, Min

    2016-01-01

    Objective Leptomeningeal collaterals, which affects tissue fate, are still challenging to assess. Four-dimensional CT angiography (4D CTA) originated from CT perfusion (CTP) provides the possibility of non-invasive and time-resolved assessment of leptomeningeal collateral flow. We sought to develop a comprehensive rating system to integrate the speed and extent of collateral flow on 4D CTA, and investigate its prognostic value for reperfusion therapy in acute ischemic stroke (AIS) patients. Methods We retrospectively studied 80 patients with M1 ± internal carotid artery (ICA) occlusion who had baseline CTP before intravenous thrombolysis. The velocity and extent of collaterals were evaluated by regional leptomeningeal collateral score on peak phase (rLMC-P) and temporally fused intensity projections (tMIP) (rLMC-M) on 4D CTA, respectively. The cutoffs of rLMC-P and rLMC-M score for predicting good outcome (mRS score ≤ 2) were integrated to develop the collateral grading scale (CGS) (rating from 0–2). Results The CGS score was correlated with 3-months mRS score (non-recanalizers: ρ = -0.495, p = 0.01; recanalizers: ρ = -0.671, p < 0.001). Patients with intermediate or good collaterals (CGS score of 1 and 2) who recanalized were more likely to have good outcome than those without recanalization (p = 0.038, p = 0.018), while there was no significant difference in outcome in patients with poor collaterals (CGS score of 0) stratified by recanalization (p = 0.227). Conclusions Identification of collaterals based on CGS may help to select good responders to reperfusion therapy in patients with large artery occlusion. PMID:27505435

  18. Natural product juglone targets three key enzymes from Helicobacter pylori: inhibition assay with crystal structure characterization

    Institute of Scientific and Technical Information of China (English)

    Yun-hua KONG; Liang ZHANG; Zheng-yi YANG; Cong HAN; Li-hong HU; Hua-liang JIANG; Xu SHEN

    2008-01-01

    Aim: To investigate the inhibition features of the natural product juglone (5-hydroxy-1,4-naphthoquinone) against the three key enzymes from Helicobacter pylori (cystathionine γ-synthase [HpCGS], malonyl-CoA:acyl carrier protein transacylase [HpFabD], and β-hydroxyacyl-ACP dehydratase [HpFabZ]). Methods: An enzyme inhibition assay against HpCGS was carded out by using a continuous coupled spectrophotometric assay approach. The inhibition assay of HpFabD was performed based on the α-ketoglutarate dehydrogenase-coupled system, while the inhibition assay for HpFabZ was monitored by detecting the decrease in absorbance at 260 nm with crotonoyl-CoA conversion to βhydroxybutyryl-CoA. The juglone/FabZ complex crystal was obtained by soaking juglone into the HpFabZ crystal, and the X-ray crystal structure of the complex was analyzed by molecular replacement approach. Results: Juglone was shown to potently inhibit HpCGS, HpFabD, and HpFabZ with the half maximal inhibitory concentration IC50 values of 7.0±0.7, 20±1, and 30±4 μmol/L, respectively. An inhibition-type study indicated that juglone was a non-competitive inhibitor of HpCGS against O-succi-nyl-L-homoserine (KI=αKI=24 μmol/L), an uncompetitive inhibitor of HpFabD against malonyl-CoA (αKI=7.4 μmol/L), and a competitive inhibitor of HpFabZ against crotonoyl-CoA (K,1=6.8 μtmol/L). Moreover, the crystal structure of the HpFabZ/juglone complex further revealed the essential binding pattern ofjuglone against HpFabZ at the atomic level. Conclusion: HpCGS, HpFabD, and HpFabZ are potential targets ofjuglone.

  19. Intelligent Systems

    Data.gov (United States)

    National Aeronautics and Space Administration — The autonomous systems (AS) project, led by NASA Ames, is developing software for system operation automation. AS technology will help astronauts make more...

  20. Study on the Formation of Urea or Salt Induced Vesicles in Built-system Surfactant

    Institute of Scientific and Technical Information of China (English)

    Chang Gang HU; Hui XIE; Gan Zuo LI; Ya AN; Zhong Ni WANG; Xiao Yi ZHANG; Jing Ping TIAN

    2005-01-01

    The spontaneous formation of vesicles in the aqueous of cationic surfactant phosphate(PTA) and anionic surfactant sodium dodecyl sulfate (SDS) at certain mixing ratios have obtained1.The addition of urea or NaI will expand the range of spontaneous vesicle formation. The fact is demonstrated by negative-staining transmission electron microscope(TEM) and dynamic light scattering(DLS) methods. The phenomenon especially in the part of urea is reported by us at first.Mechanism of urea/NaI-induced vesicles formation is discussed from the viewpoint of the molecular geometry packing parameter f, conformation and interaction.

  1. Retrofitting Systems

    DEFF Research Database (Denmark)

    Rose, Jørgen

    1997-01-01

    This report gives an overview of the different retrofitting possibilities that are available today. The report looks at both external and internal systems for external wall constructions, roof constructions, floor constructions and foundations. All systems are described in detail in respect to use...... and methods, and the efficiency of the different systems are discussed....

  2. Systems Engineering

    Science.gov (United States)

    Pellerano, Fernando

    2015-01-01

    This short course provides information on what systems engineering is and how the systems engineer guides requirements, interfaces with the discipline leads, and resolves technical issues. There are many system-wide issues that either impact or are impacted by the thermal subsystem. This course will introduce these issues and illustrate them with real life examples.

  3. Operating systems

    CERN Document Server

    Tsichritzis, Dionysios C; Rheinboldt, Werner

    1974-01-01

    Operating Systems deals with the fundamental concepts and principles that govern the behavior of operating systems. Many issues regarding the structure of operating systems, including the problems of managing processes, processors, and memory, are examined. Various aspects of operating systems are also discussed, from input-output and files to security, protection, reliability, design methods, performance evaluation, and implementation methods.Comprised of 10 chapters, this volume begins with an overview of what constitutes an operating system, followed by a discussion on the definition and pr

  4. Reactive Systems

    DEFF Research Database (Denmark)

    Aceto, Luca; Ingolfsdottir, Anna; Larsen, Kim Guldstrand;

    A reactive system comprises networks of computing components, achieving their goals through interaction among themselves and their environment. Thus even relatively small systems may exhibit unexpectedly complex behaviours. As moreover reactive systems are often used in safety critical systems......, the need for mathematically based formal methodology is increasingly important. There are many books that look at particular methodologies for such systems. This book offers a more balanced introduction for graduate students and describes the various approaches, their strengths and weaknesses, and when...... into account. The book has arisen from various courses taught in Denmark and Iceland and is designed to give students a broad introduction to the area, with exercises throughout....

  5. Cryogenic Systems

    Science.gov (United States)

    Hosoyama, Kenji

    2002-02-01

    In this lecture we discuss the principle of method of cooling to a very low temperature, i.e. cryogenic. The "gas molecular model" will be introduced to explain the mechanism cooling by the expansion engine and the Joule-Thomson expansion valve. These two expansion processes are normally used in helium refrigeration systems to cool the process gas to cryogenic temperature. The reverse Carnot cycle will be discussed in detail as an ideal refrigeration cycle. First the fundamental process of liquefaction and refrigeration cycles will be discussed, and then the practical helium refrigeration system. The process flow of the system and the key components; -compressor, expander, and heat exchanger- will be discussed. As an example of an actual refrigeration system, we will use the cryogenic system for the KEKB superconducting RF cavity. We will also discuss the liquid helium distribution system, which is very important, especially for the cryogenic systems used in accelerator applications. 1 Principles of Cooling and Fundamental Cooling Cycle 2 Expansion engine, Joule-Thomson expansion, kinetic molecular theory, and enthalpy 3 Liquefaction Systems 4 Refrigeration Systems 5 Practical helium liquefier/refrigeration system 6 Cryogenic System for TRISTAN Superconducting RF Cavity

  6. A systemic risk warning system

    OpenAIRE

    Sibert, Anne

    2010-01-01

    Economists largely neglected systemic risk in the financial sector. This column discusses how governments should gather data about systemic risk and assess its implications. It says the new European Systemic Risk Board is far from the ideal – it is too big, too homogeneous, and lacks independence.

  7. Recommender systems

    CERN Document Server

    Kembellec, Gérald; Saleh, Imad

    2014-01-01

    Acclaimed by various content platforms (books, music, movies) and auction sites online, recommendation systems are key elements of digital strategies. If development was originally intended for the performance of information systems, the issues are now massively moved on logical optimization of the customer relationship, with the main objective to maximize potential sales. On the transdisciplinary approach, engines and recommender systems brings together contributions linking information science and communications, marketing, sociology, mathematics and computing. It deals with the understan

  8. Material Systems

    DEFF Research Database (Denmark)

    Jensen, Mads Brath; Mortensen, Henrik Rubæk; Mullins, Michael;

    2009-01-01

    This paper describes and reflects upon the results of an investigative project which explores the setting up of a material system - a parametric and generative assembly consisting of and taking into consideration material properties, manufacturing constraints and geometric behavior. The project...... approaches the subject through the construction of a logic-driven system aiming to explore the possibilities of a material system that fulfills spatial, structural and performative requirements concurrently and how these are negotiated in situations where they might be conflicting....

  9. Cognitive Systems

    OpenAIRE

    Larsen, Jan

    2008-01-01

    The tutorial will discuss the definition of cognitive systems as the possibilities to extend the current systems engineering paradigm in order to perceive, learn, reason and interact robustly in open-ended changing environments. I will also address cognitive systems in a historical perspective and its relation and potential over current artificial intelligence architectures. Machine learning models that learn from data and previous knowledge will play an increasingly important role in all lev...

  10. Energetic Systems

    Data.gov (United States)

    Federal Laboratory Consortium — The Energetic Systems Division provides full-spectrum energetic engineering services (project management, design, analysis, production support, in-service support,...

  11. Intelligent systems

    CERN Document Server

    Irwin, J David

    2011-01-01

    Technology has now progressed to the point that intelligent systems are replacing humans in the decision making processes as well as aiding in the solution of very complex problems. In many cases intelligent systems are already outperforming human activities. Artificial neural networks are not only capable of learning how to classify patterns, such images or sequence of events, but they can also effectively model complex nonlinear systems. Their ability to classify sequences of events is probably more popular in industrial applications where there is an inherent need to model nonlinear system

  12. Systemic darwinism.

    Science.gov (United States)

    Winther, Rasmus Grønfeldt

    2008-08-19

    Darwin's 19th century evolutionary theory of descent with modification through natural selection opened up a multidimensional and integrative conceptual space for biology. We explore three dimensions of this space: explanatory pattern, levels of selection, and degree of difference among units of the same type. Each dimension is defined by a respective pair of poles: law and narrative explanation, organismic and hierarchical selection, and variational and essentialist thinking. As a consequence of conceptual debates in the 20th century biological sciences, the poles of each pair came to be seen as mutually exclusive opposites. A significant amount of 21st century research focuses on systems (e.g., genomic, cellular, organismic, and ecological/global). Systemic Darwinism is emerging in this context. It follows a "compositional paradigm" according to which complex systems and their hierarchical networks of parts are the focus of biological investigation. Through the investigation of systems, Systemic Darwinism promises to reintegrate each dimension of Darwin's original logical space. Moreover, this ideally and potentially unified theory of biological ontology coordinates and integrates a plurality of mathematical biological theories (e.g., self-organization/structure, cladistics/history, and evolutionary genetics/function). Integrative Systemic Darwinism requires communal articulation from a plurality of perspectives. Although it is more general than these, it draws on previous advances in Systems Theory, Systems Biology, and Hierarchy Theory. Systemic Darwinism would greatly further bioengineering research and would provide a significantly deeper and more critical understanding of biological reality.

  13. QU Carinae: Supernova Ia in the making?

    CERN Document Server

    Kafka, Stella; Williams, Bob

    2012-01-01

    Variable NaI absorption lines have been reported in a number of type Ia supernovae (SNeIa). The presence of this circumstellar material suggests that cataclysmic variables (CVs) with a giant donor star may be the progenitors of these SNeIa (Patat et al. 2007). We present echelle spectra of the CV QU Carinae which strengthen the connection between CVs of the V Sge class, the Accretion Wind Evolution scenario, variable wind features, variable NaI absorption, and SNIa. This thread not only provides insight into the spectral peculiarities of QU Car, but also links SNeIa as a class with their parent systems.

  14. cardiovascular system

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    6.1 Cardiac arrhythmias 2006037 Electroanatomical systems guided circumferential pulmonary veins ablation for atrial fibrillation: initial experience from comparison between the EnSite -NavX and CARTO system LIU Xu(刘旭 ), et al. Dept Cardiol, Shanghai Chest Hosp, Shanghai, 200030, China. Chin J Cardiol 2005; 33 (22): 975 -978.

  15. Power system

    Science.gov (United States)

    Hickam, Christopher Dale

    2008-03-18

    A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

  16. Creative Systems

    DEFF Research Database (Denmark)

    Manelius, Anne-Mette; Beim, Anne

    2007-01-01

    Opsamling af diskussioner på konferencen og udstillingen Creative Systems i september/oktober 2007. Konferencen og Udstillingen Creative Systems sætter fokus på systemer som en positiv drivkraft i den kreative skabelsesproces. CINARK inviterede fire internationale kapaciteter, som indenfor hver...... deres felt har beskæftiget sig med udviklingen af systemer. Kieran Timberlake, markant amerikansk tegnestue; Mark West, Professor på University of Manitoba, Canada, og pioner indenfor anvendelse af tekstilforskalling til betonstøbninger; Matilda McQuaid, Arkitekturhistoriker og kurator på udstillingen...... om Extreme Textiles på amerikanske Cooper Hewit Design Museum, samt Professor Ludger Hovestadt, ved ETH, Zürich der fokuserer på udvikling og anvendelse af logaritmiske systemtilgange. Udstillingen diskuterede ud fra deres meget forskellige arbejder, det kreative potentiale i anvendelsen af systemer...

  17. Dawsonite and other carbonate veins in the Cretaceous Izumi Group, SW Japan: a natural support for fracture self-sealing in mud-stone cap-rock in CGS?

    Energy Technology Data Exchange (ETDEWEB)

    Okuyama, Yasuko; Funatsu, Takahiro; Fujii, Takashi [Institute for Geo-Resources and environment, GSJ, AISI, 1-1-1 Higashi, Central 7, Tsukuba, ibaraki 305-8567 (Japan); Take, Shuji [Kishiwada Nature Club, c/o Kishiwada City Natural History Museum, Sakai-Machi 5-6, Kishiwada, Osaka 596-0072 (Japan)

    2013-07-01

    Dawsonite-bearing carbonate veins are abundant in a compact mud-stone layer of the lower part of the Izumi Group, SW Japan. The mode of occurrence of the veins probably indicates fracturing and mineral sealing associated with upwelling of CO{sub 2}-rich fluid evolved in the reservoir beneath. The carbonate veins studied here can be a natural support to fracturing and healing of mud-stone cap-rock in the CO{sub 2} geological storage. (authors)

  18. Proceedings of OttawaGeo 2007 : the Diamond Jubilee 60. Canadian Geotechnical Conference and 8. Joint CGS/IAH-CNC Groundwater Conference : Breaking Ground in the Nation's Capital

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This conference provided a forum for more than 600 delegates from industry, government universities and research centres to share their professional knowledge on research and development that affects all sectors of geotechnical engineering, applied geology and hydrogeology. Accomplishments in the geoenvironmental field were also highlighted. The geotechnical themes included buried structures; cold region engineering; computer modelling; earthquake engineering; engineering geology; foundation engineering; landfills and contaminated sites; mining geotechniques and the environment; slope stability/landslides; unsaturated soils; geosynthetics; problematic soils; rock mechanics; soil dynamics and liquefaction; and, soil-structure interactions. The hydrogeology themes included applications of geophysics to hydrogeology; aquifer case studies; hydrogeology of the Canadian Shield; hydrogeology of the Great Lakes Basin and St. Lawrence Lowlands; quantitative performance assessment of contaminant remediation; radioactive waste management; and, source water protection. The conference featured more than 320 presentations, of which 35 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  19. Implantación mediante Soporte Digital de un Sistema de Gestión de Calidad acorde con la Norma UNE-EN ISO 9001:2000 en la Empresa de Puertas CGS S.A

    OpenAIRE

    Navazo García, Pedro

    2014-01-01

    Este trabajo consigue simular la implantación de un sistema de Gestión de la Calidad en una empresa de puertas sustituyendo la manera tradicional a través del soporte papel por un soporte digital, de manera que se mejora la eficacia en la administración de la información. De esta manera se lograrán beneficios en 5 aspectos:  Reducción de los trabajos administrativos.  Reducción de documentación en soporte papel.  Mayor efectividad en la Gestión.  Realización de una...

  20. The climatology of lightning producing large impulse charge moment changes with an emphasis on mesoscale convective systems

    Science.gov (United States)

    Beavis, Nicholas

    The use of both total charge moment change (CMC) and impulse charge moment change (iCMC) magnitudes to assess the potential of a cloud-to-ground (CG) lightning stroke to induce a mesospheric sprite has been well described in literature. However, this work has primarily been carried out on a case study basis. To complement these previous case studies, climatologies of regional, seasonal, and diurnal observations of large-iCMC discharges are presented. In this study, large-iCMC discharges for thresholds > 100 and > 300 C km in both positive and negative polarities are analyzed on a seasonal basis using density maps of 2o by 2o resolution across the conterminous U.S. using data from the Charge Moment Change Network (CMCN). Also produced were local solar time diurnal distributions in eight different regions covering the lower 48 states as well as the Atlantic Ocean, including the Gulf Stream. In addition, National Lightning Detection Network (NLDN) cloud-to-ground (CG) flash diurnal distributions were included. The seasonal maps show the predisposition of large positive iCMCs to dominate across the Northern Great Plains, with large negative iCMCs favored in the Southeastern U.S. year-round. During summer, the highest frequency of large positive iCMCs across the Upper Midwest aligns closely with the preferred tracks of nocturnal mesoscale convective systems (MCSs). As iCMC values increase above 300 C km, the maximum shifts eastward of the 100 C km maximum in the Central Plains. The Southwestern U.S. also experiences significant numbers of large-iCMC discharges in summer, presumably due to convection associated with the North American Monsoon (NAM). The Gulf Stream is active year round, with a bias towards more large positive iCMCs in winter. Diurnal distributions in the eight regions support these conclusions, with a nocturnal peak in large-iCMC discharges in the Northern Great Plains and Great Lakes, an early- to mid-afternoon peak in the Intermountain West and the

  1. Water systems

    International Nuclear Information System (INIS)

    The present paper describes the coolant chemistry and its consequences for 1300 MWsub(e) KWU PWR plants. Some selected systems, i.e. primary heat transport system, steam water cycle and cooling water arrangements, are chosen for this description. Various aspects of coolant chemistry regarding general corrosion, selective types of corrosion and deposits on heat transfer surfaces have been discussed. The water supply systems necessary to fulfill the requirements of the coolant chemistry are discussed as well. It has been concluded that a good operating performance can only be achieved when - beside other factors - the water chemistry has been given sufficient consideration. (orig./RW)

  2. Water systems

    International Nuclear Information System (INIS)

    The present paper describes the coolant chemistry and its consequences for 1300 MWsub(e) KWU PWR plants. Some selected systems, i.e. primary heat transport system, steam water cycle and cooling water arrangements, are chosen for this description. Various aspects of coolant chemistry regarding general corrosion, selective types of corrosion and deposits on heat transfer surface have been discussed. The water supply systems necessary to fulfill the requirements of the coolant chemistry are discussed as well. It has been concluded that a good operating performance can only be achieved when - beside other factors - the water chemistry has been given sufficient consideration. (orig./RW)

  3. Hematopoietic System

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    2008557 Role of multiple myeloma cells on normal endothelial cells in co-culture system. WANG Yadan(王雅丹),et al. Instit Hematol,Union Hosp,Tongji Med Coll,Huazhong Univ Sci Technol,Wuhan 430022. Chin J Hematol 2008;29(10):658-661. Objective To study the influence of multiple myeloma(MM)cells on normal endothelial cells in co-culture system in vitro. Methods A co-culture system of human MM cell line RPMI8226 w

  4. Physical Systems

    CERN Document Server

    Belkind, Ori

    2012-01-01

    Based on the concept of a physical system, this book offers a new philosophical interpretation of classical mechanics and the Special Theory of Relativity. According to Belkind's view the role of physical theory is to describe the motions of the parts of a physical system in relation to the motions of the whole. This approach provides a new perspective into the foundations of physical theory, where motions of parts and wholes of physical systems are taken to be fundamental, prior to spacetime, material properties and laws of motion. He defends this claim with a constructive project, deriving b

  5. Kaonic systems

    Directory of Open Access Journals (Sweden)

    Oset E.

    2012-12-01

    Full Text Available I make a short review of the situation of the kaonic systems, with novel information supporting the two Λ(1405 states from the K-d → nπΣ reaction. A review is made of the K¯$ar K$NN system with recent calculations converging to smaller bindings and larger widths. Novel systems involving two kaons and one nucleon or three kaons are also reported and finally a short discussion is made of the analogous state DNN for which recent studies find a large binding and a small width.

  6. Creative systems

    DEFF Research Database (Denmark)

    Beim, Anne

    2007-01-01

    At udvikle systemer har altid været et væsentligt element i den arkitektoniske skabelsesproces. Systemer er ikke nødvendigvis begrænsninger, men kan ses som positive faktorer i skabelses og fremstillinsprocessen. Center for Industriel Arkitektur, Cinark, har afholdt en international konference, en...... workshop og en udstilling under overskriften; Creative Systems. Artiklen præsenterer de fire oplægsholdere Matilda McQuaid, Mark West, Stephen Kieran og Ludger Hovestadt og en række diskussionstemaer....

  7. Dynamical systems

    CERN Document Server

    Sternberg, Shlomo

    2010-01-01

    Celebrated mathematician Shlomo Sternberg, a pioneer in the field of dynamical systems, created this modern one-semester introduction to the subject for his classes at Harvard University. Its wide-ranging treatment covers one-dimensional dynamics, differential equations, random walks, iterated function systems, symbolic dynamics, and Markov chains. Supplementary materials offer a variety of online components, including PowerPoint lecture slides for professors and MATLAB exercises.""Even though there are many dynamical systems books on the market, this book is bound to become a classic. The the

  8. Assessment of the NASA Astrobiology Institute

    Science.gov (United States)

    2008-01-01

    Astrobiology is a scientific discipline devoted to the study of life in the universe--its origins, evolution, distribution, and future. It brings together the physical and biological sciences to address some of the most fundamental questions of the natural world: How do living systems emerge? How do habitable worlds form and how do they evolve? Does life exist on worlds other than Earth? As an endeavor of tremendous breadth and depth, astrobiology requires interdisciplinary investigation in order to be fully appreciated and examined. As part of a concerted effort to undertake such a challenge, the NASA Astrobiology Institute (NAI) was established in 1998 as an innovative way to develop the field of astrobiology and provide a scientific framework for flight missions. Now that the NAI has been in existence for almost a decade, the time is ripe to assess its achievements. At the request of NASA's Associate Administrator for the Science Mission Directorate (SMD), the Committee on the Review of the NASA Astrobiology Institute undertook the assignment to determine the progress made by the NAI in developing the field of astrobiology. It must be emphasized that the purpose of this study was not to undertake a review of the scientific accomplishments of NASA's Astrobiology program, in general, or of the NAI, in particular. Rather, the objective of the study is to evaluate the success of the NAI in achieving its stated goals of: 1. Conducting, supporting, and catalyzing collaborative interdisciplinary research; 2. Training the next generation of astrobiology researchers; 3. Providing scientific and technical leadership on astrobiology investigations for current and future space missions; 4. Exploring new approaches, using modern information technology, to conduct interdisciplinary and collaborative research among widely distributed investigators; and 5. Supporting outreach by providing scientific content for use in K-12 education programs, teaching undergraduate classes, and

  9. AEG System

    Data.gov (United States)

    Department of Transportation — The AEG System is used to create, revise, approve, and distribute text of the AEGS and Flight Standard Board (FSB)/Type Rating Report. The MMEL specifies under what...

  10. Avionics Systems

    Directory of Open Access Journals (Sweden)

    P.M. Soundar Rajan

    2013-03-01

    Full Text Available ‘Avionics’ systems, over the decades, have grown from simple communication radios and navigation equipments to complex integrated equipments primarily infiuenced by dominance of digital technology. Continuous growth in integrated circuit technology, functional integration of complete system on chip, very high speed communication channels and fault tolerant communication protocols have brought remarkable advancements in avionics systems. Further Mechanical and Pneumatic functional blocks are being replaced by digital systems progressively and decisively. New generation aircraft are being built around powerful avionics assets to provide stress free cockpit to the pilot.Defence Science Journal, 2013, 63(2, pp.129-130, DOI:http://dx.doi.org/10.14429/dsj.63.4269

  11. Bubble systems

    CERN Document Server

    Avdeev, Alexander A

    2016-01-01

    This monograph presents a systematic analysis of bubble system mathematics, using the mechanics of two-phase systems in non-equilibrium as the scope of analysis. The author introduces the thermodynamic foundations of bubble systems, ranging from the fundamental starting points to current research challenges. This book addresses a range of topics, including description methods of multi-phase systems, boundary and initial conditions as well as coupling requirements at the phase boundary. Moreover, it presents a detailed study of the basic problems of bubble dynamics in a liquid mass: growth (dynamically and thermally controlled), collapse, bubble pulsations, bubble rise and breakup. Special emphasis is placed on bubble dynamics in turbulent flows. The analysis results are used to write integral equations governing the rate of vapor generation (condensation) in non-equilibrium flows, thus creating a basis for solving a number of practical problems. This book is the first to present a comprehensive theory of boil...

  12. Expert Systems

    OpenAIRE

    Lucas, P.J.F.

    2005-01-01

    Expert systems mimic the problem-solving activity of human experts in specialized domains by capturing and representing expert knowledge. Expert systems include a knowledge base, an inference engine that derives conclusions from the knowledge, and a user interface. Knowledge may be stored as if-then rules, orusing other formalisms such as frames and predicate logic. Uncertain knowledge may be represented using certainty factors, Bayesian networks, Dempster-Shafer belief functions, or fuzzy se...

  13. Systems Thinkers

    OpenAIRE

    Ramage, Magnus; Shipp, Karen

    2009-01-01

    Systems Thinkers presents a biographical history of the field of systems thinking, by examining the life and work of thirty of its major thinkers. It discusses each thinker's key contributions, the way this contribution was expressed in practice and the relationship between their life and ideas. This discussion is supported by an extract from the thinker's own writing, to give a flavour of their work and to give readers a sense of which thinkers are most relevant to their own interests. ...

  14. System zeros

    OpenAIRE

    Smagina, Ye. M.

    2006-01-01

    The present book is the first publication in English considered the modern problems of control theory and analysis connected with a concept of system zeros. The previous book by Ye.M. Smagina (1990) had been written in Russian and it is inaccessible to English speaking researchers. The purpose of the offered book is to systematize and consistently to state basic theoretical results connected with properties of multivariable system zeros. Different zeros definitions and different types of zero...

  15. Nanorobotic Systems

    Directory of Open Access Journals (Sweden)

    Lixin Dong

    2008-11-01

    Full Text Available Two strategies towards the realization of nanotechnology have been presented, i.e., top-down and bottom up. The former one is mainly based on nanofabrication and includes technologies such as nano-lithography, nano-imprint, and etching. Presently, they are still 2D fabrication processes with low resolution. The later one is an assembly-based technique. At present, it includes such items as self-assembly, dip-pen lithography, and directed self-assembly. These techniques can generate regular nano patterns in large scales. To fabricate 3D complex nano devices there are still no effective ways by so far. Here we show our effort on the development of a nano laboratory, a prototype nanomanufacturing system, based on nanorobotic manipulations. In which, we take a hybrid strategy as shown in Fig. 1. In this system, nano fabrication and nano assembly can be performed in an arbitrary order to construct nano building blocks and finally nano devices. The most important feature in this system is that the products can be fed back into the system to shrink the system part by part leading to nanorobots. Property characterization can be performed in each intermediate process. Due to the nanorobotic manipulation system, dynamic measurement can be performed rather than conventional static observations.

  16. System-of-Systems Complexity

    Directory of Open Access Journals (Sweden)

    Hermann Kopetz

    2013-11-01

    Full Text Available The global availability of communication services makes it possible to interconnect independently developed systems, called constituent systems, to provide new synergistic services and more efficient economic processes. The characteristics of these new Systems-of-Systems are qualitatively different from the classic monolithic systems. In the first part of this presentation we elaborate on these differences, particularly with respect to the autonomy of the constituent systems, to dependability, continuous evolution, and emergence. In the second part we look at a SoS from the point of view of cognitive complexity. Cognitive complexity is seen as a relation between a model of an SoS and the observer. In order to understand the behavior of a large SoS we have to generate models of adequate simplicity, i.e, of a cognitive complexity that can be handled by the limited capabilities of the human mind. We will discuss the importance of properly specifying and placing the relied-upon message interfaces between the constituent systems that form an open SoS and discuss simplification strategies that help to reduce the cognitive complexity.

  17. Systems studies

    International Nuclear Information System (INIS)

    The Systems Studies Activity had two objectives: (1) to investigate nontechnical barriers to the deployment of biomass production and supply systems and (2) to enhance and extend existing systems models of bioenergy supply and use. For the first objective, the Activity focused on existing bioenergy markets. Four projects were undertaken: a comparative analysis of bioenergy in Sweden and Austria; a one-day workshop on nontechnical barriers jointly supported by the Production Systems Activity, the development and testing of a framework for analyzing barriers and drivers to bioenergy markets; and surveys of wood pellet users in Sweden, Austria and the U.S.A. For the second objective, two projects were undertaken. First, the Activity worked with the Integrated Bioenergy Systems (IBS) Activity of IEA Bioenergy Task XIII to enhance the BioEnergy Assessment Model (BEAM). This model is documented in the final report of the IBS Activity. The Systems Studies Activity contributed to enhancing the feedstock portion of the model by developing a coherent set of willow, poplar, and switchgrass production modules relevant to both the U.S.A. and the U.K. The Activity also developed a pretreatment module for switchgrass. Second, the Activity sponsored a three-day workshop on modelling bioenergy systems with the objectives of providing an overview of the types of models used to evaluate bioenergy and promoting communication among bioenergy modelers. There were nine guest speakers addressing different types of models used to evaluate different aspects of bioenergy, ranging from techno-economic models based on the ASPEN software to linear programming models to develop feedstock supply curves for the U.S.A. The papers from this workshop have been submitted to Biomass and Bioenergy and are under editorial review 8 refs, 10 tabs

  18. Systems Studies

    Energy Technology Data Exchange (ETDEWEB)

    Graham, R.L.

    1998-03-17

    The Systems Studies Activity had two objectives: (1) to investigate nontechnical barriers to the deployment of biomass production and supply systems and (2) to enhance and extend existing systems models of bioenergy supply and use. For the first objective, the Activity focused on existing bioenergy markets. Four projects were undertaken: a comparative analysis of bioenergy in Sweden and Austria; a one-day workshop on nontechnical barriers jointly supported by the Production Systems Activity; the development and testing of a framework for analyzing barriers and drivers to bioenergy markets; and surveys of wood pellet users in Sweden, Austria and the US. For the second objective, two projects were undertaken. First, the Activity worked with the Integrated BioEnergy Systems (TBS) Activity of TEA Bioenergy Task XIII to enhance the BioEnergy Assessment Model (BEAM). This model is documented in the final report of the IBS Activity. The Systems Studies Activity contributed to enhancing the feedstock portion of the model by developing a coherent set of willow, poplar, and switchgrass production modules relevant to both the US and the UK. The Activity also developed a pretreatment module for switchgrass. Second, the Activity sponsored a three-day workshop on modeling bioenergy systems with the objectives of providing an overview of the types of models used to evaluate bioenergy and promoting communication among bioenergy modelers. There were nine guest speakers addressing different types of models used to evaluate different aspects of bioenergy, ranging from technoeconomic models based on the ASPEN software to linear programming models to develop feedstock supply curves for the US. The papers from this workshop have been submitted to Biomass and Bioenergy and are under editorial review.

  19. Systemic trauma.

    Science.gov (United States)

    Goldsmith, Rachel E; Martin, Christina Gamache; Smith, Carly Parnitzke

    2014-01-01

    Substantial theoretical, empirical, and clinical work examines trauma as it relates to individual victims and perpetrators. As trauma professionals, it is necessary to acknowledge facets of institutions, cultures, and communities that contribute to trauma and subsequent outcomes. Systemic trauma-contextual features of environments and institutions that give rise to trauma, maintain it, and impact posttraumatic responses-provides a framework for considering the full range of traumatic phenomena. The current issue of the Journal of Trauma & Dissociation is composed of articles that incorporate systemic approaches to trauma. This perspective extends conceptualizations of trauma to consider the influence of environments such as schools and universities, churches and other religious institutions, the military, workplace settings, hospitals, jails, and prisons; agencies and systems such as police, foster care, immigration, federal assistance, disaster management, and the media; conflicts involving war, torture, terrorism, and refugees; dynamics of racism, sexism, discrimination, bullying, and homophobia; and issues pertaining to conceptualizations, measurement, methodology, teaching, and intervention. Although it may be challenging to expand psychological and psychiatric paradigms of trauma, a systemic trauma perspective is necessary on both scientific and ethical grounds. Furthermore, a systemic trauma perspective reflects current approaches in the fields of global health, nursing, social work, and human rights. Empirical investigations and intervention science informed by this paradigm have the potential to advance scientific inquiry, lower the incidence of a broader range of traumatic experiences, and help to alleviate personal and societal suffering.

  20. Systemic trauma.

    Science.gov (United States)

    Goldsmith, Rachel E; Martin, Christina Gamache; Smith, Carly Parnitzke

    2014-01-01

    Substantial theoretical, empirical, and clinical work examines trauma as it relates to individual victims and perpetrators. As trauma professionals, it is necessary to acknowledge facets of institutions, cultures, and communities that contribute to trauma and subsequent outcomes. Systemic trauma-contextual features of environments and institutions that give rise to trauma, maintain it, and impact posttraumatic responses-provides a framework for considering the full range of traumatic phenomena. The current issue of the Journal of Trauma & Dissociation is composed of articles that incorporate systemic approaches to trauma. This perspective extends conceptualizations of trauma to consider the influence of environments such as schools and universities, churches and other religious institutions, the military, workplace settings, hospitals, jails, and prisons; agencies and systems such as police, foster care, immigration, federal assistance, disaster management, and the media; conflicts involving war, torture, terrorism, and refugees; dynamics of racism, sexism, discrimination, bullying, and homophobia; and issues pertaining to conceptualizations, measurement, methodology, teaching, and intervention. Although it may be challenging to expand psychological and psychiatric paradigms of trauma, a systemic trauma perspective is necessary on both scientific and ethical grounds. Furthermore, a systemic trauma perspective reflects current approaches in the fields of global health, nursing, social work, and human rights. Empirical investigations and intervention science informed by this paradigm have the potential to advance scientific inquiry, lower the incidence of a broader range of traumatic experiences, and help to alleviate personal and societal suffering. PMID:24617751

  1. Memory systems.

    Science.gov (United States)

    Wolk, David A; Budson, Andrew E

    2010-08-01

    Converging evidence from patient and neuroimaging studies suggests that memory is a collection of abilities that use different neuroanatomic systems. Neurologic injury may impair one or more of these memory systems. Episodic memory allows us to mentally travel back in time and relive an episode of our life. Episodic memory depends on the hippocampus, other medial temporal lobe structures, the limbic system, and the frontal lobes, as well as several other brain regions. Semantic memory provides our general knowledge about the world and is unconnected to any specific episode of our life. Although semantic memory likely involves much of the neocortex, the inferolateral temporal lobes (particularly the left) are most important. Procedural memory enables us to learn cognitive and behavioral skills and algorithms that operate at an automatic, unconscious level. Damage to the basal ganglia, cerebellum, and supplementary motor area often impair procedural memory. PMID:22810510

  2. Turbine system

    Energy Technology Data Exchange (ETDEWEB)

    McMahan, Kevin Weston; Dillard, Daniel Jackson

    2016-05-03

    A turbine system is disclosed. The turbine system includes a transition duct having an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The turbine system further includes a turbine section connected to the transition duct. The turbine section includes a plurality of shroud blocks at least partially defining a hot gas path, a plurality of buckets at least partially disposed in the hot gas path, and a plurality of nozzles at least partially disposed in the hot gas path. At least one of a shroud block, a bucket, or a nozzle includes means for withstanding high temperatures.

  3. Kreative systemer

    DEFF Research Database (Denmark)

    Manelius, Anne-Mette

    2007-01-01

    Artikel med eksempler på armerede teglhvælv produceret i hængende tekstiler ud fra kædebueprincipper og inspireret af Eladio Dieste. Beskriver desuden konferencen og udstillingen Creative Systems på KA september 2007......Artikel med eksempler på armerede teglhvælv produceret i hængende tekstiler ud fra kædebueprincipper og inspireret af Eladio Dieste. Beskriver desuden konferencen og udstillingen Creative Systems på KA september 2007...

  4. Computer systems

    Science.gov (United States)

    Olsen, Lola

    1992-01-01

    In addition to the discussions, Ocean Climate Data Workshop hosts gave participants an opportunity to hear about, see, and test for themselves some of the latest computer tools now available for those studying climate change and the oceans. Six speakers described computer systems and their functions. The introductory talks were followed by demonstrations to small groups of participants and some opportunities for participants to get hands-on experience. After this familiarization period, attendees were invited to return during the course of the Workshop and have one-on-one discussions and further hands-on experience with these systems. Brief summaries or abstracts of introductory presentations are addressed.

  5. System Description:

    DEFF Research Database (Denmark)

    Schürmann, Carsten; Poswolsky, Adam

    2009-01-01

    Delphin is a functional programming language [Adam Poswolsky and Carsten Schürmann. Practical programming with higher-order encodings and dependent types. In European Symposium on Programming (ESOP), 2008] utilizing dependent higher-order datatypes. Delphin's two-level type-system cleanly separates...... data from computation, allowing for decidable type checking. The data level is LF [Robert Harper, Furio Honsell, and Gordon Plotkin. A framework for defining logics. Journal of the Association for Computing Machinery, 40(1):143-184, January 1993], which allows for the specification of deductive systems...

  6. Microbiology System

    Science.gov (United States)

    1992-01-01

    Technology originating in a NASA-sponsored study of the measurement of microbial growth in zero gravity led to the development of Biomerieux Vitek, Inc.'s VITEK system. VITEK provides a physician with accurate diagnostic information and identifies the most effective medication. Test cards are employed to identify organisms and determine susceptibility to antibiotics. A photo-optical scanner scans the card and monitors changes in the growth of cells contained within the card. There are two configurations - VITEK and VITEK JR as well as VIDAS, a companion system that detects bacteria, viruses, etc. from patient specimens. The company was originally created by McDonnell Douglas, the NASA contractor.

  7. Communication systems

    International Nuclear Information System (INIS)

    This paper gives a survey of the field of data communication. The topics covered are: Types of communication, protocols, communication control systems, communication equipment and techniques, and types of data nets. Further, some of the data nets in use today, and the techniques applied in their implementation, are described. The intent of the paper is not to give an in-depth analysis of the various data communication techniques; rather, to describe the principles and problems involved in the construction of a state-of-the-art communication system. (Auth.)

  8. Lindenmayer Systems

    Science.gov (United States)

    Honkala, Juha

    The theory of Lindenmayer systems studies free monoid morphisms, free monoid substitutions and their iterations. In this chapter, we discuss similar ideas in a more general framework. Instead of a free monoid, we consider the free semi-algebra S consisting of polynomials with non-commuting variables in Σ and coefficients in a semiring S and we study the iteration of endomorphisms of S. We allow various modes of iteration and we consider various classes of morphisms. Classical L systems are obtained as special cases by taking S to be the Boolean semiring. Our approach also generalizes the theory of algebraic series in noncommuting variables.

  9. Neuromodulatory Systems

    Directory of Open Access Journals (Sweden)

    Gerhard eWerner

    2013-03-01

    Full Text Available Abstract We examine the interactions and interdependencies between Neuroglia, the Brain-Cell Microenvironment, and the processes commonly subsumed under Neuromodulation. The interactions of the component processes covering a wide spectrum of frequencies are designated as Neuromodulatory Systems (NMS. This implies NMS's scale-invariance as the capacity of linking actions across many time scales, and self-similarity at any scale. These features endow NMS with the ability to respond adaptively to neural impulse traffic of an unpredictably wide frequency spectrum. In this preliminary perspective, the components of NMS are only outlined based on concepts of Complex Systems Dynamics. However, their interactions must be formally elaborated in further investigations.

  10. Superpave System

    OpenAIRE

    ECT Team, Purdue

    2007-01-01

    The Superpave is the acronym for 'SUperior PERforming Asphalt PAVEments' system. It was developed by Strategic Highway Research Program (SHRP) to give highway engineers and contractors the tools they need to design asphalt pavements that will perform better under extremes of temperature and heavy traffic loads.

  11. Solar system

    CERN Document Server

    Homer, Charlene

    2007-01-01

    Thrill young astronomers with a journey through our Solar System. Find out all about the Inner and Outer Planets, the Moon, Stars, Constellations, Asteroids, Meteors and Comets. Using simplified language and vocabulary, concepts such as planetary orbits, the asteroid belt, the lunar cycle and phases of the moon, and shooting stars are all explored.

  12. Hierarchical systems

    NARCIS (Netherlands)

    Hamers, A.S.

    2016-01-01

    The thesis addresses the long-term dynamical evolution of hierarchical multiple systems. First, we consider the evolution of orbits of stars orbiting a supermassive black hole (SBH). We study the long-term evolution and compute tidal disruption rates of stars by the SBH. Such disruption events revea

  13. Immune System

    Science.gov (United States)

    A properly functioning immune system is essential to good health. It defends the body against infectious agents and in some cases tumor cells. Individuals with immune deficiencies resulting from genetic defects, diseases (e.g., AIDS, leukemia), or drug therapies are more suscepti...

  14. Transport system

    NARCIS (Netherlands)

    Drenth, K.F.

    1999-01-01

    The transport system comprises at least one road surface (2) and at least one vehicle (4) on wheels (6). The road surface (2) has a substantially bowl-shaped cross section and the vehicle (4) is designed so that the wheels (6) run directly on the road surface (2) while the road surface (2) acts as a

  15. Cognitive Systems

    DEFF Research Database (Denmark)

    for automatic extraction and organization of meaning, purpose, and intentions in interplay with the environment (machines, artifacts and users) beyond current systems with build-in semantic representations and ontologies—in particular in terms of the interaction with users (users-in-the-loop models) through...

  16. System Dynamics

    Science.gov (United States)

    Morecroft, John

    System dynamics is an approach for thinking about and simulating situations and organisations of all kinds and sizes by visualising how the elements fit together, interact and change over time. This chapter, written by John Morecroft, describes modern system dynamics which retains the fundamentals developed in the 1950s by Jay W. Forrester of the MIT Sloan School of Management. It looks at feedback loops and time delays that affect system behaviour in a non-linear way, and illustrates how dynamic behaviour depends upon feedback loop structures. It also recognises improvements as part of the ongoing process of managing a situation in order to achieve goals. Significantly it recognises the importance of context, and practitioner skills. Feedback systems thinking views problems and solutions as being intertwined. The main concepts and tools: feedback structure and behaviour, causal loop diagrams, dynamics, are practically illustrated in a wide variety of contexts from a hot water shower through to a symphony orchestra and the practical application of the approach is described through several real examples of its use for strategic planning and evaluation.

  17. Irrigation System

    Science.gov (United States)

    1984-01-01

    Under contract with Marshall Space Flight Center, Midwest Research Institute compiled a Lubrication Handbook intended as a reference source for designers and manufacturers of aerospace hardware and crews responsible for maintenance of such equipment. Engineers of Lindsay Manufacturing Company learned of this handbook through NASA Tech Briefs and used it for supplemental information in redesigning gear boxes for their center pivot agricultural irrigation system.

  18. Systemic Architecture

    DEFF Research Database (Denmark)

    Poletto, Marco; Pasquero, Claudia

    2012-01-01

    This is a manual investigating the subject of urban ecology and systemic development from the perspective of architectural design. It sets out to explore two main goals: to discuss the contemporary relevance of a systemic practice to architectural design, and to share a toolbox of informational...... design protocols developed to describe the city as a territory of self-organization. Collecting together nearly a decade of design experiments by the authors and their practice, ecoLogicStudio, the book discusses key disciplinary definitions such as ecologic urbanism, algorithmic architecture, bottom......-up or tactical design, behavioural space and the boundary of the natural and the artificial realms within the city and architecture. A new kind of "real-time world-city" is illustrated in the form of an operational design manual for the assemblage of proto-architectures, the incubation of proto...

  19. [Systemic sclerosis].

    Science.gov (United States)

    Schinke, Susanne; Riemekasten, Gabriela

    2016-04-01

    Systemic sclerosis is a challenging and heterogeneous disease due to the involvement of multiple organs and the high impact on morbidity and quality of life. Lung fibrosis, pulmonary arterial hypertension, and cardiac manifestations are main causes of systemic sclerosis-related deaths. In addition, patients suffer from a various range of co-morbidities such as malnutrition, depression, osteoporosis, malignancies, which are increased in these patients and have to be identified and treated. Early assessment of organ damage is a key to therapeutic success. The discovery of pathogenic autoantibodies combined with increased evidence of effective immunosuppressive and vasoactive treatment strategies are major developments in the therapy of the disease. At present, several clinical studies are ongoing and some of the biological therapies are promising.

  20. TUBO system

    International Nuclear Information System (INIS)

    Proceedings recently incorporated to TUBO system like the seismic analysis and the stress verification acccording to ASME-Boiler Rule and Pressure Vessel Code-section III are presented. The seismic analysis comprehend the consideration of uniform motion of the support, its multiple excitation, and the attainment of the spectral response for both cases. The module for stress verification uses stresses resulting fromthe combination of the loads specified by the user, in the automatic verification of permissible stresses for the pipings class 1 and 2, based on criteria NB-3650 and NC-3650 of ASME. The implementation of these proceedings in the TUBO system are discussed and a numerical example that covers the different phases of a stress analysis in a piping is presented

  1. Bilateral system. The ABACC system

    International Nuclear Information System (INIS)

    After relating the antecedents of the creation of the Brazilian-Argentine Agency for the Accounting and Control of Nuclear Materials (ABACC), the paper describes the common system of accounting and control set up by Argentina and Brazil. The organization of ABACC is also outlined

  2. Systems paleobiology

    OpenAIRE

    Knoll, Andrew Herbert

    2013-01-01

    Systems paleobiology seeks to interpret the history of life within the framework of Earth’s environmental history, using physiology as the conceptual bridge between paleontological and geochemical data sets. In some cases, physiological performance can be estimated directly and quantitatively from fossils—this is commonly the case for vascular plant remains. In other instances, statistical inferences about physiology can be made on the basis of phylogenetic relationships. Examples from resear...

  3. Italgrip System

    OpenAIRE

    ECT Team, Purdue

    2007-01-01

    The ever increasing number of registered vehicles has resulted in, up until the present time, a parallel increase in the number of road accidents. One of the reasons for this is that the quality of the road surface has not adequately kept pace with the increased volume of traffic. The Italgrip System increases skid resistance, reduces hydroplaning risk, reduces noise, and reduces salt consumption and can be applied to asphalt, concrete, or steel surfaces. It has been applied to several roadwa...

  4. Neuromodulatory systems

    OpenAIRE

    Werner, Gerhard; Mitterauer, Bernhard J.

    2013-01-01

    We examine the interactions and interdependencies between Neuroglia, the Brain-Cell Microenvironment, and the processes commonly subsumed under Neuromodulation. The interactions of the component processes covering a wide spectrum of frequencies are designated as Neuromodulatory Systems (NMS). This implies NMS's scale-invariance as the capacity of linking actions across many time scales, and self-similarity at any scale. These features endow NMS with the ability to respond adaptively to neural...

  5. Neuromodulatory Systems

    OpenAIRE

    Gerhard eWerner; Mitterauer, Bernhard J.

    2013-01-01

    Abstract We examine the interactions and interdependencies between Neuroglia, the Brain-Cell Microenvironment, and the processes commonly subsumed under Neuromodulation. The interactions of the component processes covering a wide spectrum of frequencies are designated as Neuromodulatory Systems (NMS). This implies NMS's scale-invariance as the capacity of linking actions across many time scales, and self-similarity at any scale. These features endow NMS with the ability to respond adaptively ...

  6. Organizational Systems

    OpenAIRE

    2004-01-01

    Kirk A. Astroth: So...You Want to Serve on The NAE4-HA Board! Marilyn Corbin: Diversity in Action: Promising Practices of CASD. Teresa Hogue: Can Extension Programs Afford Not to Invest in Business Plans? Dallas L. Holmes: FOCIS an Extension Web-Based Accountability in Action Reporting System. Maureen Hosty: 4-H Wildlife Stewards- Unleashing the Force and Vitality of Communities. Beverly Kelbaugh: Identifying Professional Development Needs of Extension Personnel. Jane E. Keyser: Property Tax ...

  7. Security system

    Science.gov (United States)

    Baumann, Mark J.; Kuca, Michal; Aragon, Mona L.

    2016-02-02

    A security system includes a structure having a structural surface. The structure is sized to contain an asset therein and configured to provide a forceful breaching delay. The structure has an opening formed therein to permit predetermined access to the asset contained within the structure. The structure includes intrusion detection features within or associated with the structure that are activated in response to at least a partial breach of the structure.

  8. Systemic amyloidosis.

    Science.gov (United States)

    Wechalekar, Ashutosh D; Gillmore, Julian D; Hawkins, Philip N

    2016-06-25

    Tissue deposition of protein fibrils causes a group of rare diseases called systemic amyloidoses. This Seminar focuses on changes in their epidemiology, the current approach to diagnosis, and advances in treatment. Systemic light chain (AL) amyloidosis is the most common of these conditions, but wild-type transthyretin cardiac amyloidosis (ATTRwt) is increasingly being diagnosed. Typing of amyloid fibrils, a critical determinant of therapy, has improved with the wide availability of laser capture and mass spectrometry from fixed histological tissue sections. Specific and accurate evaluation of cardiac amyloidosis is now possible using cardiac magnetic resonance imaging and cardiac repurposing of bone scintigraphy tracers. Survival in AL amyloidosis has improved markedly as novel chemotherapy agents have become available, but challenges remain in advanced disease. Early diagnosis, a key to better outcomes, still remains elusive. Broadening the amyloid-specific therapeutic landscape to include RNA inhibitors, fibril formation stabilisers and inhibitors, and immunotherapeutic targeting of amyloid deposits holds promise to transform outcomes in systemic amyloidoses. PMID:26719234

  9. Complex Systems

    Directory of Open Access Journals (Sweden)

    Yi Zhao

    2012-01-01

    Full Text Available Quantum instanton (QI approximation is recently proposed for the evaluations of the chemical reaction rate constants with use of full dimensional potential energy surfaces. Its strategy is to use the instanton mechanism and to approximate time-dependent quantum dynamics to the imaginary time propagation of the quantities of partition function. It thus incorporates the properties of the instanton idea and the quantum effect of partition function and can be applied to chemical reactions of complex systems. In this paper, we present the QI approach and its applications to several complex systems mainly done by us. The concrete systems include, (1 the reaction of H+CH4→H2+CH3, (2 the reaction of H+SiH4→H2+SiH3, (3 H diffusion on Ni(100 surface; and (4 surface-subsurface transport and interior migration for H/Ni. Available experimental and other theoretical data are also presented for the purpose of comparison.

  10. Weather Satellite Enterprise Information Chain

    Science.gov (United States)

    Jamilkowski, M. L.; Grant, K. D.; Miller, S. W.; Cochran, S.

    2015-12-01

    NOAA & NASA are acquiring the next-generation civilian operational weather satellite: Joint Polar Satellite System (JPSS). Contributing the afternoon orbit & ground system (GS) to replace current NOAA POES Satellites, its sensors will collect meteorological, oceanographic & climatological data. The JPSS Common Ground System (CGS), consisting of C3 and IDP segments, is developed by Raytheon. It now flies the Suomi National Polar-orbiting Partnership (S-NPP) satellite, transferring data between ground facilities, processing them into environmental products for NOAA weather centers, and expanding to support JPSS-1 in 2017. As a multi-mission system, CGS provides combinations of C3, data processing, and product delivery for numerous NASA, NOAA, DoD and international missions.The CGS provides a wide range of support to a number of missions: Command and control and mission management for the S-NPP mission today, expanding this support to the JPSS-1 satellite mission in 2017 Data acquisition for S-NPP, the JAXA's Global Change Observation Mission - Water (GCOM-W1), POES, and the Defense Meteorological Satellite Program (DMSP) and Coriolis/WindSat for the DoD Data routing over a global fiber network for S-NPP, JPSS-1, GCOM-W1, POES, DMSP, Coriolis/WindSat, NASA EOS missions, MetOp for EUMETSAT and the National Science Foundation Environmental data processing and distribution for S-NPP, GCOM-W1 and JPSS-1 The CGS plays a key role in facilitating the movement and value-added enhancement of data all the way from satellite-based sensor data to delivery to the consumers who generate forecasts and produce watches and warnings. This presentation will discuss the information flow from sensors, through data routing and processing, and finally to product delivery. It will highlight how advances in architecture developed through lessons learned from S-NPP and implemented for JPSS-1 will increase data availability and reduce latency for end user applications.

  11. Measurement of radiocesium concentration in trees using cumulative gamma radiation dose rate detection systems - A simple presumption for radiocesium concentration in living woods using glass-badge based gamma radiation dose rate detection system

    Energy Technology Data Exchange (ETDEWEB)

    Yoshihara, T.; Hashida, S.N. [Plant Molecular Biology, Laboratory of Environmental Science, Central Research Institute of Electric Power Industry (CRIEPI), 1646 Abiko, Chiba 270-1194 (Japan); Kawachi, N.; Suzui, N.; Yin, Y.G.; Fujimaki, S. [Radiotracer Imaging Gr., Quantum Beam Science Center, Japan Atomic Energy Agency (JAEA), 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan); Nagao, Y.; Yamaguchi, M. [Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency (JAEA), 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)

    2014-07-01

    Radiocesium from the severe accident at the Fukushima Dai-ichi Nuclear Power Plant on 11 March 2011 contaminates large areas. After this, a doubt for forest products, especially of mushroom, is indelible at the areas. Pruned woody parts and litters are containing a considerable amount of radiocesium, and generates a problem at incineration and composting. These mean that more attentive survey for each subject is expected; however, the present survey system is highly laborious/expensive and/or non-effective for this purpose. On the other hand, we can see a glass-badge based gamma radiation dose rate detection system. This system always utilized to detect a personal cumulative radiation dose, and thus, it is not suitable to separate a radiation from a specific object. However, if we can separate a radiation from a specific object and relate it with the own radiocesium concentration, it would enable us to presume the specific concentration with just an easy monitoring but without a destruction of the target nature and a complicated process including sampling, pre-treatment, and detection. Here, we present the concept of the measurement and results of the trials. First, we set glass-badges (type FS, Chiyoda Technol Corp., Japan) on a part of bough (approximately 10 cm in diameter) of Japanese flowering cherry trees (Prunus x yedoensis cv. Somei-Yoshino) with four different settings: A, a direct setting without any shield; B, a setting with an aluminum shield between bough and the glass-badge; C, a setting with a lead shield between bough and the glass-badge; D, a setting with a lead shield covering the glass-badge to shut the radiation from the surrounding but from bough. The deduction between the amount of each setting should separate a specific radiation of the bough from unlimited radiation from the surrounding. Even if the hourly dose rate is not enough to count the difference, a moderate cumulative dose would clear the difference. In fact, results demonstrated a

  12. Ration System

    OpenAIRE

    Vymazalova, Hana

    2016-01-01

    The distribution of rations can be found in documents from different period of the Egyptian history but the general features of the ration system is not easy to trace. Most of the sources are the more or less fragmentary lists of wages/payments that reflect various conditions, such as status of the recipients, period to which the payment corresponds etc, that are not always known to us. Other documents provide us with categories of allowances ascribed to the workmen and officials who particip...

  13. Sterilization System

    Science.gov (United States)

    1990-01-01

    Cox Sterile Products, Inc.'s Rapid Heat Transfer Sterilizer employs a heat exchange process that induces rapid air movement; the air becomes the heat transfer medium, maintaining a uniform temperature of 375 degrees Fahrenheit. It features pushbutton controls for three timing cycles for different instrument loads, a six-minute cycle for standard unpackaged instruments, eight minutes for certain specialized dental/medical instruments and 12 minutes for packaged instruments which can then be stored in a drawer in sterile condition. System will stay at 375 degrees all day. Continuous operation is not expensive because of the sterilizer's very low power requirements.

  14. Bearing system

    Science.gov (United States)

    Kapich, Davorin D.

    1987-01-01

    A bearing system includes backup bearings for supporting a rotating shaft upon failure of primary bearings. In the preferred embodiment, the backup bearings are rolling element bearings having their rolling elements disposed out of contact with their associated respective inner races during normal functioning of the primary bearings. Displacement detection sensors are provided for detecting displacement of the shaft upon failure of the primary bearings. Upon detection of the failure of the primary bearings, the rolling elements and inner races of the backup bearings are brought into mutual contact by axial displacement of the shaft.

  15. Linear systems

    CERN Document Server

    Bourlès, Henri

    2013-01-01

    Linear systems have all the necessary elements (modeling, identification, analysis and control), from an educational point of view, to help us understand the discipline of automation and apply it efficiently. This book is progressive and organized in such a way that different levels of readership are possible. It is addressed both to beginners and those with a good understanding of automation wishing to enhance their knowledge on the subject. The theory is rigorously developed and illustrated by numerous examples which can be reproduced with the help of appropriate computation software. 60 exe

  16. Nuclear systems

    CERN Document Server

    Todreas, Neil E

    2011-01-01

    Principal Characteristics of Power ReactorsIntroductionPower CyclesPrimary Coolant SystemsReactor CoresFuel AssembliesAdvanced Water- and Gas-Cooled Reactors (Generation III And III+)Advanced Thermal and Fast Neutron Spectrum Reactors (Generation IV)ReferencesProblemsThermal Design Principles and ApplicationIntroductionOverall Plant Characteristics Influenced by Thermal Hydraulic ConsiderationsEnergy Production and Transfer ParametersThermal Design LimitsThermal Design MarginFigures of Merit for Core Thermal PerformanceThe Inverted Fuel ArrayThe Equivalent Annulus ApproximationReferencesProble

  17. System update

    International Nuclear Information System (INIS)

    The Laser Experiments Analysis Facility consists of two DEC computers - PDP-11/34 and a VAX/VMS-11/780; and a Perkin-Elmer 1010GM microdensitometer - a photodigitizing system (PDS). The PDP-11/34 is a dedicated machine used to control the PDS, and the VAX is used for storage and analysis of ICF data and for general purpose computing. A one-way, fiber-optic link connects the LEAF VAX to the Nova VAX for transfer of shot data. Over the past year, major improvements were made in the hardware, system software, and applications codes. The VAX hardware was modernized by the addition of two high-speed tape drives and four Winchester disks. The disks have a combined capacity of over 4 gigabytes. A number of special peripherals were also added: an array processor, an IBM Personal Computer (PC), a Versatec Random Element Processor (REP), a high-resolution color monitor, and two 1000-line-per-minute Versatec printer/plotters. Currently on order is an upgrade to the VAX central processing unit (CPU) that will increase its computing speed by about 50%

  18. Compact groups in the UZC galaxy sample

    CERN Document Server

    Kelm, P; Kelm, Paola Focardi & Birgit

    2002-01-01

    Applying an automatic neighbour search algorithm to the 3D UZC galaxy catalogue (Falco 1999) we have identified 291 compact groups (CGs) with redshifts between 1000 and 10000 km/s. The sample is analysed to investigate whether Triplets display kinematical and morphological characteristics similar to higher order CGs (Multiplets). It is found that Triplets constitute low velocity dispersion structures, have a gas-rich galaxy population and are typically retrieved in sparse environments. Conversely Multiplets show higher velocity dispersion, include few gas-rich members and are generally embedded structures. Evidence hence emerges indicating that Triplets and Multiplets, though sharing a common scale, correspond to different galaxy systems. Triplets are typically field structures whilst Multiplets are mainly subclumps (either temporarily projected or collapsing) within larger structures. Simulations show that selection effects can only partially account for differences, but significant contamination of Triplets...

  19. Expert Systems: What Is an Expert System?

    Science.gov (United States)

    Duval, Beverly K.; Main, Linda

    1994-01-01

    Describes expert systems and discusses their use in libraries. Highlights include parts of an expert system; expert system shells; an example of how to build an expert system; a bibliography of 34 sources of information on expert systems in libraries; and a list of 10 expert system shells used in libraries. (Contains five references.) (LRW)

  20. System analysis and design

    International Nuclear Information System (INIS)

    This book deals with information technology and business process, information system architecture, methods of system development, plan on system development like problem analysis and feasibility analysis, cases for system development, comprehension of analysis of users demands, analysis of users demands using traditional analysis, users demands analysis using integrated information system architecture, system design using integrated information system architecture, system implementation, and system maintenance.

  1. Turbocompound system

    Energy Technology Data Exchange (ETDEWEB)

    Fox, L.D.

    1986-05-06

    A turbocompound system is described for improving the performance of an internal combustion engine without substantially increasing an end viewed profile of the engine to which it is mounted in use. The system consists of: (a) an exhaust driven turbocharger means having an exhaust manifold means extending in an axial direction for collecting exhaust gases from engine cylinders and delivering the gases to an outlet end thereof, exhaust turbine means for extracting energy from the exhaust gases, the exhaust turbine means being provided with an inlet connected to the outlet end of the manifold and an outlet for discharging the exhaust gases, compressor means coupled to the exhaust turbine means for providing a supply of charge air under pressure to an air outlet thereof for delivery to air intake means of an internal combustion engine in use; (b) a power turbine means for extracting additional energy from the exhaust gases, the power turbine means having an intake connected to the outlet of the exhaust turbine means, and mounting means on a side of the power turbine means facing in a direction parallel to the axial direction of the exhaust manifold means that is constructed for being mounted, in use, on an end of an engine adjacent one end of a crankshaft of the engine; and (c) coupling means connected to the power turbine means for transferring mechanical energy produced by the power turbine means, the coupling means extending from the power turbine means to a power take-off end in a direction parallel to the axial length of the exhaust manifold means by an amount that is sufficient for enabling the power take-off end to be connected, in use, to an opposite end of the engine crankshaft from the one end thereof in a manner for transferring the mechanical energy produced by the power turbine means adjacent the one end of the crankshaft to the opposite end of the crankshaft without having to pass therethrough.

  2. Systems engineering simplified

    CERN Document Server

    Cloutier, Robert; Bone, Mary Alice

    2015-01-01

    IntroductionOverviewDiscussion of Common TerminologyThe Case for Systems EngineeringA Brief History of Systems EngineeringSystem ExamplesSummaryThe System Life CycleManaging System Development-The Vee ModelSystem ProductionSystem Utilization and SupportSystem Retirement and DisposalOther Systems Engineering Development ModelsSpiral ModelAgile Model for Systems EngineeringSystem of InterestAbstraction and DecompositionIntegrationDeveloping and Managing RequirementsCyclone Requiremen

  3. Flexible Coal: An Example Evolution from Baseload to Peaking Plant (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, J.

    2014-05-01

    Twenty-first century power systems, with higher penetration levels of low-carbon energy, smart grids, and other emerging technologies, will favor resources that have low marginal costs and provide system flexibility (e.g., the ability to cycle on and off to follow changes in variable renewable energy plant output). Questions remain about both the fate of coal plants in this scenario and whether they can cost-effectively continue to operate if they cycle routinely. The experience from the CGS plant demonstrates that coal plants can become flexible resources. This flexibility - namely the ability to cycle on and off and run at lower output (below 40% of capacity) - requires limited hardware modifications but extensive modifications to operational practice. Cycling does damage the plant and impact its life expectancy compared to baseload operations. Nevertheless, strategic modifications, proactive inspections and training programs, among other operational changes to accommodate cycling, can minimize the extent of damage and optimize the cost of maintenance. CGS's cycling, but not necessarily the associated price tag, is replicable. Context - namely, power market opportunities and composition of the generation fleet - will help determine for other coal plants the optimal balance between the level of cycling-related forced outages and the level of capital investment required to minimize those outages. Replicating CGS's experience elsewhere will likely require a higher acceptance of forced outages than regulators and plant operators are accustomed to; however, an increase in strategic maintenance can minimize the impact on outage rates.

  4. Flexible Coal: Evolution from Baseload to Peaking Plant (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, J.; Lew, D.; Kumar, N.

    2013-12-01

    Twenty-first century power systems, with higher penetration levels of low-carbon energy, smart grids, and other emerging technologies, will favor resources that have low marginal costs and provide system flexibility (e.g., the ability to cycle on and off to follow changes in variable renewable energy plant output). Questions remain about both the fate of coal plants in this scenario and whether they can cost-effectively continue to operate if they cycle routinely. The experience from the CGS plant demonstrates that coal plants can become flexible resources. This flexibility - namely the ability to cycle on and off and run at lower output (below 40% of capacity) - requires limited hardware modifications but extensive modifications to operational practice. Cycling does damage the plant and impact its life expectancy compared to baseload operations. Nevertheless, strategic modifications, proactive inspections and training programs, among other operational changes to accommodate cycling, can minimize the extent of damage and optimize the cost of maintenance. CGS's cycling, but not necessarily the associated price tag, is replicable. Context - namely, power market opportunities and composition of the generation fleet - will help determine for other coal plants the optimal balance between the level of cycling-related forced outages and the level of capital investment required to minimize those outages. Replicating CGS's experience elsewhere will likely require a higher acceptance of forced outages than regulators and plant operators are accustomed to; however, an increase in strategic maintenance can minimize the impact on outage rates.

  5. Flexible Coal: An Example Evolution from Baseload to Peaking Plant (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, J.

    2014-08-01

    Twenty-first century power systems, with higher penetration levels of low-carbon energy, smart grids, and other emerging technologies, will favor resources that have low marginal costs and provide system flexibility (e.g., the ability to cycle on and off to follow changes in variable renewable energy plant output). Questions remain about both the fate of coal plants in this scenario and whether they can cost-effectively continue to operate if they cycle routinely. The experience from the CGS plant demonstrates that coal plants can become flexible resources. This flexibility - namely the ability to cycle on and off and run at lower output (below 40% of capacity) - requires limited hardware modifications but extensive modifications to operational practice. Cycling does damage the plant and impact its life expectancy compared to baseload operations. Nevertheless, strategic modifications, proactive inspections and training programs, among other operational changes to accommodate cycling, can minimize the extent of damage and optimize the cost of maintenance. CGS's cycling, but not necessarily the associated price tag, is replicable. Context - namely, power market opportunities and composition of the generation fleet - will help determine for other coal plants the optimal balance between the level of cycling-related forced outages and the level of capital investment required to minimize those outages. Replicating CGS's experience elsewhere will likely require a higher acceptance of forced outages than regulators and plant operators are accustomed to; however, an increase in strategic maintenance can minimize the impact on outage rates.

  6. Chem systems

    International Nuclear Information System (INIS)

    This paper reports that world styrene demand, paced by a near doubling of combined requirements in East Asia and Oceania, could reach 19.3 million metric tons by 2000, an average growth rate of 3.7%/year. So concludes Chem Systems Inc., Tarrytown, N.Y., in a study of world styrene markets through the end of the century. Pacific Rim styrene production and consumption throughout the 1990s are predicted to make up increasingly larger shares of world markets, while demand and production lag in the U.S. and western Europe. Demand and capacity in other parts of the world will grow in real terms, increasing combined market shares only slightly. Most of the increase will be driven by demand in East Asia and Oceania, where consumption by century's end is expected to increase 4.48 million metric tons from 2.25 million tons in 1991. Meantime, Japan's styrene demand in 2000 is projected at 2.64 million tons, a 500,000 ton increase from 1991 demand but a net market loss of 1.9%

  7. Cardiovascular System

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    7.1 Heart failure2007175 Effects of recombinant human brain natriuretic peptide on aldosterone and endothelin-1 in treatment of heart failure. FU Yao(付尧),et al. Dept Cardiol, 1st Affili Hosp, China Med Univ, Shenyang 110001. Chin Cir J 2007;22(1):35-37. Obiective To study the efficacy and the effects of recombinant human brain natriuretic peptide(rhBNP) on aldosterone and endothelin-1 in the treatment of congestive heart failure(CHF).Methods A randomized, open, controlled clinical trial was conducted in 35 patients with CHF. Eighteen received rhBNP and 17 were treated with nitroglycerin as controls. The changes hemodynamic indexes, the plasma concentrations of K+, Na+, aldo-sterone(ALD) and endothelin-1 (ET-1) in order to examine the efficacy and mechanism of rhBNP. Results Between experiment and control groups significant differences were found in the decreasing of PCWP, PAP and plasma concentration of Na+, ALD, ET-1, and in the increasing of plasma concentration of K+ (P<0.05~0.01). Conclusion The mechanism of rhBNP may be associated with the overactivation of renin-angiotension-aldosterone system, and the inhibited production of endothelin-1.

  8. Comparison of multifractal parameters form adsorption isotherms, desorption isotherms and mercury intrusion curves

    Science.gov (United States)

    Paz-Ferreiro, Jorge; Mon, Rodolfo; Vidal Vázquez, Eva

    2013-04-01

    The soil pore space is composed of a continuum of pores extremely variable in size, which range from equivalent diameter sizes smaller than nanometers to an upper limit of the order of centimeters. So, it is quite typical for soil pore space to display a size range of more than a factor of 106 in scale. Nitrogen sorption and mercury injection provide pores size distributions in the range from about 0.1 to 0.001 μm and 150 to 0.005 μm, respectively. The aims of this study were to evaluate the scaling properties of nitrogen adsorption isotherms (NAI), nitrogen desorption isotherms (NDI) and mercury intrusion porosimetry (MIP) curves of agricultural soils from "La Pampa húmeda", in the north of Buenos Aires and south of Santa Fé provinces, Argentina. Both NAIs, NDIs and MIPs exhibited multifractal behavior but its scaling properties were different so that the multifractality index, assessed by the width of the generalized dimension and the singularity spectra ranked as follows: NAI > NDI > MIP. Also, parameterization by the Hurst exponent indicates NAIs were less persistent than NDIs and in turn, these were less persistent than MIPs. The multfractal approach was useful to characterize the heterogeneity of various domains of the soil nano- micro- and mesopore system at the scale of small aggregates.

  9. Endocrine System (For Teens)

    Science.gov (United States)

    ... Can I Help a Friend Who Cuts? Endocrine System KidsHealth > For Teens > Endocrine System Print A A ... called the endocrine system . What Is the Endocrine System? Although we rarely think about the endocrine system, ...

  10. Prosthetic Knee Systems

    Science.gov (United States)

    ... of fluid control systems — pneumatic (using air) and hydraulic (using fluid). Pneumatic control. These systems: compress air ... control than friction systems are less effective than hydraulic systems. Hydraulic control. These systems: use liquid (usually ...

  11. Effects of adenosine A2a receptor agonist and antagonist on cerebellar nuclear factor-kB expression preceded by MDMA toxicity

    Science.gov (United States)

    Kermanian, Fatemeh; Soleimani, Mansoureh; Pourheydar, Bagher; Samzadeh-Kermani, Alireza; Mohammadzadeh, Farzaneh; Mehdizadeh, Mehdi

    2014-01-01

    Background: Adenosine is an endogenous purine nucleoside that has a neuromodulatory role in the central nervous system. The amphetamine derivative (±)-3,4-methylenedioxymethamphetamine (MDMA or ecstasy) is a synthetic amphetamine analogue used recreationally to obtain an enhanced affiliated emotional response. MDMA is a potent monoaminergic neurotoxin with the potential of damage to brain neurons. The NF-kB family of proteins are ubiquitously expressed and are inducible transcription factors that regulate the expression of genes involved in disparate processes such as immunity and ingrowth, development and cell-death regulation. In this study we investigated the effects of the A2a adenosine receptor (A2a-R) agonist (CGS) and antagonist (SCH) on NF-kB expression after MDMA administration. Methods: Sixty three male Sprague–Dawley rats were injected to MDMA (10 and 20mg/kg) followed by intraperitoneal CGS (0.03 mg/kg) or SCH (0.03mg/kg) injection. The cerebellum were then removed forcresylviolet staining, western blot and RT- PCR analyses. MDMA significantly elevated NF-kB expression. Our results showed that MDMA increased the number of cerebellar dark neurons. Results: We observed that administration of CGS following MDMA, significantly elevated the NF-kB expression both at mRNA and protein levels. By contrast, administration of the A2a-R antagonist SCH resulted in a decrease in the NF-kB levels. Conclusion: These results indicated that, co-administration of A2a agonist (CGS) can protect against MDMA neurotoxic effects by increasing NF-kB expression levels; suggesting a potential application for protection against the neurotoxic effects observed in MDMA users. PMID:25678999

  12. Comparison of preconditioned generalized conjugate gradient methods to two-dimensional neutron and photon transport equation

    International Nuclear Information System (INIS)

    We apply and compare the preconditioned generalized conjugate gradient methods to solve the linear system equation that arises in the two-dimensional neutron and photon transport equation in this paper. Several subroutines are developed on the basis of preconditioned generalized conjugate gradient methods for time-independent, two-dimensional neutron and photon transport equation in the transport theory. These generalized conjugate gradient methods are used: TFQMR (transpose free quasi-minimal residual algorithm) CGS (conjugate gradient square algorithm), Bi-CGSTAB (bi-conjugate gradient stabilized algorithm) and QMRCGSTAB (quasi-minimal residual variant of bi-conjugate gradient stabilized algorithm). These subroutines are connected to computer program DORT. Several problems are tested on a personal computer with Intel Pentium CPU. The reasons to choose the generalized conjugate gradient methods are that the methods have better residual (equivalent to error) control procedures in the computation and have better convergent rate. The pointwise incomplete LU factorization ILU, modified pointwise incomplete LU factorization MILU, block incomplete factorization BILU and modified blockwise incomplete LU factorization MBILU are the preconditioning techniques used in the several testing problems. In Bi-CGSTAB, CGS, TFQMR and QMRCGSTAB method, we find that either CGS or Bi-CGSTAB method combined with preconditioner MBILU is the most efficient algorithm in these methods in the several testing problems. The numerical solution of flux by preconditioned CGS and Bi-CGSTAB methods has the same result as those from Cray computer, obtained by either the point successive relaxation method or the line successive relaxation method combined with Gaussian elimination

  13. Adenosine A2A receptor deficiency up-regulates cystatin F expression in white matter lesions induced by chronic cerebral hypoperfusion.

    Science.gov (United States)

    Duan, Wei; Ran, Hong; Zhou, Zhujuan; He, Qifen; Zheng, Jian

    2012-01-01

    In previous studies, we have shown that the inactivation of the adenosine A2A receptor exacerbates chronic cerebral hypoperfusion-induced white matter lesions (WMLs) by enhancing neuroinflammatory responses. However, the molecular mechanism underlying the effect of the adenosine A2A receptor remains unknown. Recent studies have demonstrated that cystatin F, a potent endogenous cysteine protease inhibitor, is selectively expressed in immune cells in association with inflammatory demyelination in central nervous system diseases. To understand the expression of cystatin F and its potential role in the effect of A2A receptor on WMLs induced through chronic cerebral hypoperfusion, we investigated cystatin F expression in the WMLs of A2A receptor gene knockout mice, the littermate wild-type mice and wild-type mice treated daily with the A2A receptor agonist CGS21680 or both CGS21680 and A2A receptor antagonist SCH58261 after chronic cerebral hypoperfusion. The results of quantitative-PCR and western blot analysis revealed that cystatin F mRNA and protein expression were significantly up-regulated in the WMLs after chronic cerebral hypoperfusion. In addition, cystatin F expression in the corpus callosum was significantly increased in A2A receptor gene knockout mice and markedly decreased in mice treated with CGS21680 on both the mRNA and protein levels. Additionally, SCH58261 counteracted the attenuation of cystatin F expression produced by CGS21680 after chronic cerebral hypoperfusion. Moreover, double immunofluorescence staining revealed that cystatin F was co-localized with the activated microglia marker CD11b. In conclusion, the cystatin F expression in the activated microglia is closely associated with the effect of the A2A receptors, which may be related to the neuroinflammatory responses occurring during the pathological process.

  14. Adenosine A2A receptor deficiency up-regulates cystatin F expression in white matter lesions induced by chronic cerebral hypoperfusion.

    Directory of Open Access Journals (Sweden)

    Wei Duan

    Full Text Available In previous studies, we have shown that the inactivation of the adenosine A2A receptor exacerbates chronic cerebral hypoperfusion-induced white matter lesions (WMLs by enhancing neuroinflammatory responses. However, the molecular mechanism underlying the effect of the adenosine A2A receptor remains unknown. Recent studies have demonstrated that cystatin F, a potent endogenous cysteine protease inhibitor, is selectively expressed in immune cells in association with inflammatory demyelination in central nervous system diseases. To understand the expression of cystatin F and its potential role in the effect of A2A receptor on WMLs induced through chronic cerebral hypoperfusion, we investigated cystatin F expression in the WMLs of A2A receptor gene knockout mice, the littermate wild-type mice and wild-type mice treated daily with the A2A receptor agonist CGS21680 or both CGS21680 and A2A receptor antagonist SCH58261 after chronic cerebral hypoperfusion. The results of quantitative-PCR and western blot analysis revealed that cystatin F mRNA and protein expression were significantly up-regulated in the WMLs after chronic cerebral hypoperfusion. In addition, cystatin F expression in the corpus callosum was significantly increased in A2A receptor gene knockout mice and markedly decreased in mice treated with CGS21680 on both the mRNA and protein levels. Additionally, SCH58261 counteracted the attenuation of cystatin F expression produced by CGS21680 after chronic cerebral hypoperfusion. Moreover, double immunofluorescence staining revealed that cystatin F was co-localized with the activated microglia marker CD11b. In conclusion, the cystatin F expression in the activated microglia is closely associated with the effect of the A2A receptors, which may be related to the neuroinflammatory responses occurring during the pathological process.

  15. System safety education focused on system management

    Science.gov (United States)

    Grose, V. L.

    1971-01-01

    System safety is defined and characteristics of the system are outlined. Some of the principle characteristics include role of humans in hazard analysis, clear language for input and output, system interdependence, self containment, and parallel analysis of elements.

  16. Respiratory System

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    8.1 Respiratory failure2007204 Comparison of the effects of BiPAP ventilation combined with lung recruitment maneuvers and low tidal volume A/C ventilation in patients with acute respiratory distress syndrome. WANG Xiaozhi(王晓芝),et al. Dept Respir & Intensive Care Unit, Binzhou Med Coll, Binzhou 256603. Chin J Tuberc Respir Dis 2007;30(1):44-47. Objective To compare the effects of BiPAP ventilation combined with lung recruitment maneuvers(LRM) with low tidal volume A/C ventilation in patients with acute respiratory distress syndrome (ARDS). Methods A prospective, randomized comparison of BiPAP mechanical ventilation combined with lung recruitment maneuvers(test group) with low tidal volume A/C ventilation (control group) was conducted in 28 patients with ARDS. FiO2/PaO2 ratio, respiratory system compliance(Cs), central venous pressure (CVP), duration of ventilation support were recorded at 0 h, 48 h and 72 h separately. The ventilation associated lung injury and mortality at 28 d were also recorded. Results The FiO2/PaO2 ratio were (298±16) and (309±16) cm H2O, Cs were (38.4±2.2) and (42.0±1.3) ml/cm H2O, CVP were (13.8±0.8) and (11.6±0.7) cm H2O in the test group at 48 h and 72 h separately. In the control group, FiO2/PaO2 ratio were (212±12) and (246±17) cm H2O, Cs were (29.5±1.3) and (29.0±1.0) ml/cm H2O, CVP were 18.6±1.1 and (16.8±1.0) cm H2O. The results were better in the test group as compared with the control group (t=10.03-29. 68, all P<0.01). The duration of ventilation support in the test group was shorter than the control group [(14±3) d vs (19±3)d, t=4.80, P<0.01]. The mortality in 28 d and ventilation associated lung injury were similar in the two groups. Conclusion The results show that combination of LRM with BiPAP mode ventilation, as compared with the control group, contributes to the improved FiO2/PaO2 ratio, pulmonary compliance, stable homodynamic and shorter duration of ventilation support in patients with ARDs.

  17. Potenciais benefícios do sistema de rastreabilidade animal dos EUA para o setor de carnes americano

    Directory of Open Access Journals (Sweden)

    Moisés de Andrade Resende Filho

    2008-12-01

    Full Text Available Este artigo investigou os potenciais ganhos do setor de carnes americano advindos da implantação do Sistema Nacional de Identificação Animal (NAIS, dos EUA. Foram analisados os potenciais efeitos do NAIS sobre a percepção de risco dos consumidores americanos em relação aos perigos decorrentes do consumo das carnes bovina, suína e de aves e seus derivados. Sistemas de equações de demanda foram estimados, incorporando-se como "proxies" da percepção de risco do consumidor, séries de índices de segurança do alimento, separadamente construídas para cada tipo de carne. Tais séries foram concebidas, somando-se o número de referências nos principais jornais americanos a problemas de segurança da carne. Foi utilizado o melhor modelo estimado, escolhido com base em uma série de testes de especificação, para se construir três cenários, simulando-se os casos em que o NAIS não está implementado; que está implementado apenas para o gado bovino; e que está implementado para suínos e bovinos. Foram utilizadas as diferenças entre as receitas estimadas para cada cenário e para cada tipo de carne, como uma medida do potencial ganho advindo da implementação do NAIS. Foi concluído que os setores da carne bovina e suína poderiam arcar com os custos do NAIS. Esse resultado, contudo, depende de o quanto desses potenciais ganhos chegarão efetivamente aos produtores agrícolas.This article investigates the potential gains to the U.S. meat sector with the implantation of the U.S. National Animal Identification System (NAIS. The focus is on the effect that the NAIS could have on consumers' risk perception about eating meat. System of demand equations are estimated using time series of food safety indexes variables used as proxies for consumers' reactions to news on meat safety issues. The series of food safety indexes are built on the basis of the number of food safety news reported in top U.S. newspapers. Using the preferred model

  18. Geoinformation Systems as Automated Management System

    Directory of Open Access Journals (Sweden)

    Andrey Pavlov

    2013-01-01

    Full Text Available The article analyzes geoinformation systems (GIS development as management systems, highlights the basic principles of decision-making in GIS, describes GIS storage systems and decision-making systems, discloses the use of GIS for the territory management and briefly describes the use of GIS for transport management and monitoring.

  19. Information Systems in the Polish Payment System

    OpenAIRE

    Murowaniecki, Łukasz; Woźniacki, Konrad

    2007-01-01

    The paper focuses on computerised information systems responsible for payment information exchange in Polish payment system. Firstly some terms, connected with the topic of funds transfer system, are ordered. Then, relying on the taxonomy, the paper presents a comprehensive view of domestic payment system.

  20. Geoinformation Systems as Automated Management System

    OpenAIRE

    Andrey Pavlov

    2013-01-01

    The article analyzes geoinformation systems (GIS) development as management systems, highlights the basic principles of decision-making in GIS, describes GIS storage systems and decision-making systems, discloses the use of GIS for the territory management and briefly describes the use of GIS for transport management and monitoring.

  1. Square conservation systems and Hamiltonian systems

    Institute of Scientific and Technical Information of China (English)

    王斌; 曾庆存; 季仲贞

    1995-01-01

    The internal and external relationships between the square conservation scheme and the symplectic scheme are revealed by a careful study on the interrelation between the square conservation system and the Hamiltonian system in the linear situation, thus laying a theoretical basis for the application and extension of symplectic schemes to square conservations systems, and of those schemes with quadratic conservation properties to Hamiltonian systems.

  2. New imaging systems in nuclear medicine. Technical progress report, June 1, 1980-May 31, 1981

    International Nuclear Information System (INIS)

    Three areas of work are reported: (1) the development of the Analogue Ring Detector; (2) other instrument development; and (3) instrument applications. The analogue ring design calculations and measurements were made for a single slice NaI(Tl) detector PC Ring. Detector material other than NaI was evaluated for the analogue ring design. Design studies for a high resolution detector using BGO were made and a high data rate detector using CsF is being designed. The design concept for PC Ring uses BGO rather than NaI as a detector material. Subsequent studies indicated that it is also the preferred design for NaI(Tl). The design of PC ring is complete to the computer interface. Layout of the electronics boards including preamplifier, position sensing, and coincidence logic is complete. Testing of the partially assembled detector will begin September 1. Initial design studies for a 50 cm diameter, high-resolution BGO analogue ring were made. Monte-Carlo studies of stopping power, spatial resolution, and light spread function were made. Measurements were made with a 4 PM tube section using 3 BGO detector elements and two types of PM tubes. The detector elements were polished and coated with reflective paint. The spatial resolution measured with the RCA S83012E PM tubes was 3.9 mm FWHM for events greater than 400 keV. Preliminary design studies were made for a high data rate CsF analogue ring detector. The goal is for 1 cm resolution using 2.8 cm diameter PM tubes. Measurements using CsF have not yet been made. Summaries of the clinical applications of the positron instrument are included. Applications include CNS, Cardiovascular, and pulmonary imaging studies

  3. Networked control of microgrid system of systems

    Science.gov (United States)

    Mahmoud, Magdi S.; Rahman, Mohamed Saif Ur; AL-Sunni, Fouad M.

    2016-08-01

    The microgrid has made its mark in distributed generation and has attracted widespread research. However, microgrid is a complex system which needs to be viewed from an intelligent system of systems perspective. In this paper, a network control system of systems is designed for the islanded microgrid system consisting of three distributed generation units as three subsystems supplying a load. The controller stabilises the microgrid system in the presence of communication infractions such as packet dropouts and delays. Simulation results are included to elucidate the effectiveness of the proposed control strategy.

  4. Understanding Patterns for System of Systems Integration

    DEFF Research Database (Denmark)

    Kazman, Rick; Schmid, Klaus; Nielsen, Claus Ballegård;

    2013-01-01

    Architecting systems of systems is well known to be a formidable challenge. A major aspect in this is defining the integration among the systems that constitute the system of systems. In this paper, we aim to support the SoS architect by systematically developing a way to characterize system...... of systems integration patterns. These characteristics at the same time support the architecting process by highlighting important issues a SoS architect needs to consider. We discuss the consolidated template and illustrate it with an example pattern. We also discuss the integration of this novel pattern...

  5. Concept and System of Personification Control System

    Institute of Scientific and Technical Information of China (English)

    Bai,Fengshuang; Yin,Yixin; Tu,Xuyan; Zhang,Ying

    2006-01-01

    This paper provides the system and conception of the Personification Control System (PCS) on the basis of Intelligent Control System based on Artificial life (ICS/AL), Artificial Emotion, Humanoid Control, and Intelligent Control System based on Field bus. According to system science and deciding of organize of biology, the Pyramid System of PCS are created. Then Pyramid System of PCS which is made up of PCS1/H, PCS1/S, PCS1/O, PCS1/C and PCS1/G is described.

  6. Systems design of long-life systems

    Science.gov (United States)

    Miles, R. F., Jr.

    1974-01-01

    A long-life system is defined as a system which cannot be life-tested in its operational environment. Another restriction is that preventive maintenance and repair shall be either impossible or economically disadvantageous. Examples of such systems include planetary spacecraft, communication satellites, undersea telephone cables, and nuclear power plants. The questions discussed are related to the implementation of system functions, approaches to determine the required level of system reliability, and aspects of tradeoffs between requirements and reliability.

  7. Systems Engineering Management Education in Embedded System

    Science.gov (United States)

    Inoue, Masahiro

    Engineers with system architecture design and project management abilities are required in the field of embedded system development. In university, however, educations are mainly focused on computer science and programming; systems engineering and project management education have been disregard. We implemented educational curriculum of systems engineering and project management in embedded system for graduate program. In this paper the course design, execution and evaluation are described.

  8. Multiscale analysis of nitrogen adsorption and desorption isotherms in soils developed over sandstone and basic parent materials with contrasting texture

    Science.gov (United States)

    Paz-Ferreiro, Jorge; Marinho, Mara de A.; de Abreu, Cleide A.

    2014-05-01

    Mono- and multifractal analysis of soil nitrogen adsorption isotherms (NAI) have been proven to be useful, allowing a better characterization of soil surface properties and soil porous system. Multiscale analysis of nitrogen desorption isotherms (NDI), which was less frequently performed, can also provide very valuable information. The multifractal theory was used to analyse both soil adsorption and desorption isotherms from soils developed over contrasting parent material and with different texture. We sampled 32 soil horizons from 6 soil profiles in neighbouring sites from São Paulo State, Brazil. Three of the profiles, developed over sandstone, were sandy loam or loamy, whereas the other three profiles, developed over weathered sediments or basic parent material, were clayey textured. Soil specific surface area (SSA) varied, from about 3.0 to 46 m2 g-1. Surface parameters showed a strong correlation with clay content, but they were not correlated with cation exchange capacity (CEC). The scaling properties of both nitrogen adsorption and desorption isotherms from all the studied soil horizons could be fitted reasonably well with multifractal models. Multifractal parameters from NAIs and NDIs showed great differences. The singularity spectra, f(α) of the desorption isotherms had an asymmetrically long left part and its asymmetry was in general higher compared with adsorption isotherms. Moreover, adsorption isotherms behaved like more clustered measures, showing lower entropy dimension, D1, smaller correlation dimension, D2, and higher heterogeneity than desorption isotherms. Differences in multifractal behaviour of NAIs and NDIs had been proven to be mainly related to the characteristics of the hysteretic loop measured at high relative pressures. Several multifractal parameters extracted from NAIs and NDIs also distinguished between sandy-loam and loam soils and clayey soils. Multifractal parameters calculated from NAIs and NDIs provide new insight to assess

  9. Your Digestive System

    Science.gov (United States)

    ... Here's Help White House Lunch Recipes Your Digestive System KidsHealth > For Kids > Your Digestive System Print A ... flush we were talking about! Dig That Digestive System You can help your digestive system by drinking ...

  10. Male Reproductive System

    Science.gov (United States)

    ... I Help a Friend Who Cuts? Male Reproductive System KidsHealth > For Teens > Male Reproductive System Print A ... reproductive systems. continue What Is the Male Reproductive System? Most species have two sexes: male and female. ...

  11. Multiple System Atrophy

    Science.gov (United States)

    ... Enhancing Diversity Find People About NINDS NINDS Multiple System Atrophy Information Page Condensed from Multiple System Atrophy ... Trials Organizations Publicaciones en Español What is Multiple System Atrophy? Multiple system atrophy (MSA) is a progressive ...

  12. 求解非对称线性方程组的QMRGCGS方法%A QMRGCGS METHOD FOR NONSYMMETRIC LINEAR SYSTEM

    Institute of Scientific and Technical Information of China (English)

    刘杰; 迟利华; 胡庆丰; 李晓梅

    2003-01-01

    @@ 1 引言 求解非对称线性方程组Ax=b的双共轭梯度方法(BCG)[3]和它的变形共轭梯度平方方法(CGS)[6]都有典型的不规则收敛行为,后来Freund和Nachtigal提出一种BCG类方法,即拟极小剩余方法(QMR)[7],用来补救BCG方法的收敛性并且产生了光滑的收敛曲线.然而,象BCG方法一样,QMR方法要用到系数矩阵A及其转置AT与向量的乘积,为了解决这一问题,Freund提出TFQMR方法,此方法具有拟极小剩余性,同时不需用到AT与向量的乘积.

  13. Situation awareness with systems of systems

    CERN Document Server

    Tretmans, Jan; Borth, Michael

    2013-01-01

    This book discusses various aspects, challenges, and solutions for developing systems-of-systems for situation awareness, using applications in the domain of maritime safety and security.  Topics include advanced, multi-objective visualization methods for situation awareness, stochastic outlier selection, rule-based anomaly detection, an ontology-based event model for semantic reasoning, new methods for semi-automatic generation of adapters bridging communication gaps, security policies for systems-of-systems, trust assessment, and methods to deal with the dynamics of systems-of-systems in run-time monitoring, testing, and diagnosis. Architectural considerations for designing information-centric systems-of-systems such as situation awareness systems, and an integrated demonstrator implementing many of the investigated aspects, complete the book.

  14. System of systems modeling and analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, James E.; Anderson, Dennis James; Longsine, Dennis E. (Intera, Inc., Austin, TX); Shirah, Donald N.

    2005-01-01

    This report documents the results of an LDRD program entitled 'System of Systems Modeling and Analysis' that was conducted during FY 2003 and FY 2004. Systems that themselves consist of multiple systems (referred to here as System of Systems or SoS) introduce a level of complexity to systems performance analysis and optimization that is not readily addressable by existing capabilities. The objective of the 'System of Systems Modeling and Analysis' project was to develop an integrated modeling and simulation environment that addresses the complex SoS modeling and analysis needs. The approach to meeting this objective involved two key efforts. First, a static analysis approach, called state modeling, has been developed that is useful for analyzing the average performance of systems over defined use conditions. The state modeling capability supports analysis and optimization of multiple systems and multiple performance measures or measures of effectiveness. The second effort involves time simulation which represents every system in the simulation using an encapsulated state model (State Model Object or SMO). The time simulation can analyze any number of systems including cross-platform dependencies and a detailed treatment of the logistics required to support the systems in a defined mission.

  15. Computer System Design System-on-Chip

    CERN Document Server

    Flynn, Michael J

    2011-01-01

    The next generation of computer system designers will be less concerned about details of processors and memories, and more concerned about the elements of a system tailored to particular applications. These designers will have a fundamental knowledge of processors and other elements in the system, but the success of their design will depend on the skills in making system-level tradeoffs that optimize the cost, performance and other attributes to meet application requirements. This book provides a new treatment of computer system design, particularly for System-on-Chip (SOC), which addresses th

  16. Intelligent systems technology infrastructure for integrated systems

    Science.gov (United States)

    Lum, Henry, Jr.

    1991-01-01

    Significant advances have occurred during the last decade in intelligent systems technologies (a.k.a. knowledge-based systems, KBS) including research, feasibility demonstrations, and technology implementations in operational environments. Evaluation and simulation data obtained to date in real-time operational environments suggest that cost-effective utilization of intelligent systems technologies can be realized for Automated Rendezvous and Capture applications. The successful implementation of these technologies involve a complex system infrastructure integrating the requirements of transportation, vehicle checkout and health management, and communication systems without compromise to systems reliability and performance. The resources that must be invoked to accomplish these tasks include remote ground operations and control, built-in system fault management and control, and intelligent robotics. To ensure long-term evolution and integration of new validated technologies over the lifetime of the vehicle, system interfaces must also be addressed and integrated into the overall system interface requirements. An approach for defining and evaluating the system infrastructures including the testbed currently being used to support the on-going evaluations for the evolutionary Space Station Freedom Data Management System is presented and discussed. Intelligent system technologies discussed include artificial intelligence (real-time replanning and scheduling), high performance computational elements (parallel processors, photonic processors, and neural networks), real-time fault management and control, and system software development tools for rapid prototyping capabilities.

  17. Language as a System of Systems

    Science.gov (United States)

    Mulder, J. W. F.; Hervey, S. G. J.

    1975-01-01

    Based on Mulder's previous classification of all semiotic systems designed to describe the system of discrete features in human languages, this article explores a further subclassification of the genus language into species. (CLK)

  18. Operating System Performance Analyzer for Embedded Systems

    OpenAIRE

    Shahzada Khayyam Nisar; Maqsood Ahmed; Huma Ayub; Iram Baig

    2011-01-01

    RTOS provides a number of services to an embedded system designs such as case management, memory management, and Resource Management to build a program. Choosing the best OS for an embedded system is based on the available OS for system designers and their previous knowledge and experience. This can cause an imbalance between the OS and embedded systems. RTOS performance analysis is critical in the design and integration of embedded software to ensure that limits the application meet at runti...

  19. LCLS XTOD Attenuator System System Concept Report

    Energy Technology Data Exchange (ETDEWEB)

    Kishiyama, K; Roeben, M; Trent, J; Ryutov, D; Shen, S

    2006-04-12

    The attenuator system for the Linac Coherent Light Source (LCLS) X-ray Transport, Optics and Diagnostics (XTOD) system has been configured and analyzed by the Lawrence Livermore National Laboratory's New Technologies Engineering Division (NTED) as requested by the SLAC/LCLS program. The system layout, performance analyses and selection of the vacuum components are presented in this System Conceptual Review (SCR) report. Also included are the plans for prototype, procurement, mechanical integration, and the cost estimates.

  20. Game Information System

    OpenAIRE

    Spits Warnars

    2010-01-01

    In this Information system age many organizations consider information system as their weapon to compete or gain competitive advantage or give the best services for non profit organizations. Game Information System as combining Information System and game is breakthrough to achieve organizations' performance. The Game Information System will run the Information System with game and how game can be implemented to run the Information System. Game is not only for fun and entertainment, but will ...

  1. Designing information systems

    CERN Document Server

    Blethyn, Stanley G

    2014-01-01

    Designing Information Systems focuses on the processes, methodologies, and approaches involved in designing information systems. The book first describes systems, management and control, and how to design information systems. Discussions focus on documents produced from the functional construction function, users, operators, analysts, programmers and others, process management and control, levels of management, open systems, design of management information systems, and business system description, partitioning, and leveling. The text then takes a look at functional specification and functiona

  2. System Design of the SWRL Financial System.

    Science.gov (United States)

    Ikeda, Masumi

    To produce various management and accounting reports in order to maintain control of SWRL (Southwest Regional Laboratory) operational and financial activities, a computer-based SWRL financial system was developed. The system design is outlined, and various types of system inputs described. The kinds of management and accounting reports generated…

  3. Non linear system become linear system

    Directory of Open Access Journals (Sweden)

    Petre Bucur

    2007-01-01

    Full Text Available The present paper refers to the theory and the practice of the systems regarding non-linear systems and their applications. We aimed the integration of these systems to elaborate their response as well as to highlight some outstanding features.

  4. Modeling learning technology systems as business systems

    NARCIS (Netherlands)

    Avgeriou, Paris; Retalis, Symeon; Papaspyrou, Nikolaos

    2003-01-01

    The design of Learning Technology Systems, and the Software Systems that support them, is largely conducted on an intuitive, ad hoc basis, thus resulting in inefficient systems that defectively support the learning process. There is now justifiable, increasing effort in formalizing the engineering o

  5. Optical system defect propagation in ABCD systems

    DEFF Research Database (Denmark)

    McKinley, W.G.; Yura, H.T.; Hanson, Steen Grüner

    1988-01-01

    We describe how optical system defects (tilt/jitter, decenter, and despace) propagate through an arbitrary paraxial optical system that can be described by an ABCD ray transfer matrix. A pedagogical example is given that demonstrates the effect of alignment errors on a typical optical system...

  6. The complement system in systemic autoimmune disease

    NARCIS (Netherlands)

    Chen, Min; Daha, Mohamed R.; Kallenberg, Cees G. M.

    2010-01-01

    Complement is part of the innate immune system. Its major function is recognition and elimination of pathogens via direct killing and/or stimulation of phagocytosis. Activation of the complement system is, however, also involved in the pathogenesis of the systemic autoimmune diseases. Activation via

  7. Linking Political Systems and War Systems

    DEFF Research Database (Denmark)

    Harste, Gorm

    2009-01-01

    military coercion to be the appropriate mean. Using the system theory and the theory of systemic risks displayed by the German sociologist Niklas Luhmann the article demonstrates how military systems due to their own autonomy and autopoiesis do not fit into the idea of political government...

  8. Expert Systems for auditing management information systems

    Directory of Open Access Journals (Sweden)

    Gheroghe Popescu

    2007-05-01

    Full Text Available Expert systems are built with the help of: specialised programming languages or expert system generators (shell. But this structure was reached after tens of years of work and research, because expert systems are nothing but pragmatic capitalisation of the results of research carried out in artificial intelligence and theory of knowledge.

  9. Information Systems: Towards a System of Information Systems

    OpenAIRE

    Saleh, Majd; Abel, Marie-Helene

    2015-01-01

    International audience Information Systems are viewed as a set of services creating a workflow of information directed to specific groups and members. This allows individuals to share ideas and their talents with other members. In such manner , tasks can be carried out both efficiently and effectively. Due to the nature of Information Systems that revolves around creating information useful to users , and in some higher forms of Information Systems creating knowledge , management of inform...

  10. Operating System Security

    CERN Document Server

    Jaeger, Trent

    2008-01-01

    Operating systems provide the fundamental mechanisms for securing computer processing. Since the 1960s, operating systems designers have explored how to build "secure" operating systems - operating systems whose mechanisms protect the system against a motivated adversary. Recently, the importance of ensuring such security has become a mainstream issue for all operating systems. In this book, we examine past research that outlines the requirements for a secure operating system and research that implements example systems that aim for such requirements. For system designs that aimed to

  11. Psychology of system design

    CERN Document Server

    Meister, D

    2014-01-01

    This is a book about systems, including: systems in which humans control machines; systems in which humans interact with humans and the machine component is relatively unimportant; systems which are heavily computerized and those that are not; and governmental, industrial, military and social systems. The book deals with both traditional systems like farming, fishing and the military, and with systems just now tentatively emerging, like the expert and the interactive computer system. The emphasis is on the system concept and its implications for analysis, design and evaluation of these many di

  12. Biomedical signals and systems

    CERN Document Server

    Tranquillo, Joseph V

    2013-01-01

    Biomedical Signals and Systems is meant to accompany a one-semester undergraduate signals and systems course. It may also serve as a quick-start for graduate students or faculty interested in how signals and systems techniques can be applied to living systems. The biological nature of the examples allows for systems thinking to be applied to electrical, mechanical, fluid, chemical, thermal and even optical systems. Each chapter focuses on a topic from classic signals and systems theory: System block diagrams, mathematical models, transforms, stability, feedback, system response, control, time

  13. Lighting system with thermal management system

    Energy Technology Data Exchange (ETDEWEB)

    Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Seeley, Charles Erklin; Kuenzler, Glenn Howard; Wolfe, Jr, Charles Franklin; Utturkar, Yogen Vishwas; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc

    2016-10-11

    Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.

  14. Lighting system with thermal management system

    Science.gov (United States)

    Arik, Mehmet; Weaver, Stanton; Stecher, Thomas; Seeley, Charles; Kuenzler, Glenn; Wolfe, Jr., Charles; Utturkar, Yogen; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc

    2013-05-07

    Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.

  15. Systems Intelligence Inventory

    Science.gov (United States)

    Törmänen, Juha; Hämäläinen, Raimo P.; Saarinen, Esa

    2016-01-01

    Purpose: Systems intelligence (SI) (Saarinen and Hämäläinen, 2004) is a construct defined as a person's ability to act intelligently within complex systems involving interaction and feedback. SI relates to our ability to act in systems and reason about systems to adaptively carry out productive actions within and with respect to systems such as…

  16. Collaborative Systems Testing

    Science.gov (United States)

    Pocatilu, Paul; Ciurea, Cristian

    2009-01-01

    Collaborative systems are widely used today in various activity fields. Their complexity is high and the development involves numerous resources and costs. Testing collaborative systems has a very important role for the systems' success. In this paper we present taxonomy of collaborative systems. The collaborative systems are classified in many…

  17. Airborne fallout mapping of {sup 137}Cs - STUK/HUT team

    Energy Technology Data Exchange (ETDEWEB)

    Nikkinen, M.; Aarnio, P. [Helsinki Univ. of Technology, Espoo (Finland); Honkamaa, T.; Tiilikainen, H. [Finnish Centre for Radiation and Nuclear Safety, Helsinki (Finland)

    1997-12-31

    The task of the team was to create a fallout map of {sup 137}Cs on a specified area in Padasjoki Auttoinen village. The team used AB-420 helicopter of the Finnish Frontier Guard. The team had two measuring systems: HPGe system (relative efficiency 18%) and NaI system (5`x5`). Both systems produced similar maps. The average {sup 137}Cs fallout within the area (lakes and ponds included) was 88 kBq m{sup -2,} the maximum value being 161 kBq m{sup -2}. In an emergency the HPGe is superior to NaI because of its better energy resolution, giving possibility to obtain nuclide-specific results. (au).

  18. Mapping biological systems to network systems

    CERN Document Server

    Rathore, Heena

    2016-01-01

    The book presents the challenges inherent in the paradigm shift of network systems from static to highly dynamic distributed systems – it proposes solutions that the symbiotic nature of biological systems can provide into altering networking systems to adapt to these changes. The author discuss how biological systems – which have the inherent capabilities of evolving, self-organizing, self-repairing and flourishing with time – are inspiring researchers to take opportunities from the biology domain and map them with the problems faced in network domain. The book revolves around the central idea of bio-inspired systems -- it begins by exploring why biology and computer network research are such a natural match. This is followed by presenting a broad overview of biologically inspired research in network systems -- it is classified by the biological field that inspired each topic and by the area of networking in which that topic lies. Each case elucidates how biological concepts have been most successfully ...

  19. Compact groups from the Millennium Simulations: I. Nature and properties

    CERN Document Server

    Diaz-Gimenez, Eugenia; Muriel, Hernan; Mamon, Gary

    2008-01-01

    We identify compact groups of galaxies (CGs) within mock galaxy catalogs from the Millennium Simulation at z=0 with the semi-analytic models of galaxy formation by Croton et al. (C06), Bower et al. (B06) and De Lucia & Blaizot (DLB). CGs are identified using the same 2D criteria as those visually applied by Hickson (1982) to his CGs (HCGs). Half of the CGs identified in projection contain at least 4 accordant velocities (mvCGs). In comparison to mvCGs, the HCGs are only 2% complete, missing CGs either faint, low surface brightness (SB), apparently small, or with a strongly dominant galaxy. We define physically dense mvCGs as those whose maximum real space galaxy separation of their smallest clump of 4 galaxies is below a threshold chosen such that the 3D shapes of these clumps are similar to those of groups selected in real space. Then, 25% of the mvCGs are dense (50% of mvCGs contain a dense triplet), as are 25-50% of the mvCGs resampled according to the HCG completeness functions. The majority of mvCGs ...

  20. Societal threat as a moderator of cultural group selection.

    Science.gov (United States)

    Gelfand, Michele J; Roos, Patrick; Nau, Dana; Harrington, Jesse; Mu, Yan; Jackson, Joshua

    2016-01-01

    As scholars have rushed to either prove or refute cultural group selection (CGS), the debate lacks sufficient consideration of CGS's potential moderators. We argue that pressures for CGS are particularly strong when groups face ecological and human-made threat. Field, experimental, computational, and genetic evidence are presented to substantiate this claim.

  1. Manned systems technology discipline

    Science.gov (United States)

    Bretoi, Remus

    1990-01-01

    Viewgraphs on manned systems technology discipline for Space Station Freedom are presented. Topics covered include: crew-systems interfaces and interactions; crew training; on-board systems maintenance and support; habitability and environment; and computational human factors.

  2. Immune System Involvement

    Science.gov (United States)

    ... to find out more! Email * Zipcode The Immune System and Psoriatic Disease What is an autoimmune disease? ... and painful joints and tendons. Treating the immune system The immune system is not only the key ...

  3. Immune System Quiz

    Science.gov (United States)

    ... Here's Help White House Lunch Recipes Quiz: Immune System KidsHealth > For Kids > Quiz: Immune System Print A A A Text Size How much do you know about your immune system? Find out by taking this quiz! View Survey ...

  4. Female Reproductive System

    Science.gov (United States)

    ... Things to Know About Zika & Pregnancy Female Reproductive System KidsHealth > For Parents > Female Reproductive System Print A ... or sperm. continue Components of the Female Reproductive System Unlike the male, the human female has a ...

  5. Brain and Nervous System

    Science.gov (United States)

    ... to Know About Zika & Pregnancy Brain and Nervous System KidsHealth > For Parents > Brain and Nervous System Print ... is quite the juggler. Anatomy of the Nervous System If you think of the brain as a ...

  6. Lungs and Respiratory System

    Science.gov (United States)

    ... to Know About Zika & Pregnancy Lungs and Respiratory System KidsHealth > For Parents > Lungs and Respiratory System Print ... have taken at least 600 million breaths. Respiratory System Basics All of this breathing couldn't happen ...

  7. What Are Expert Systems?

    Science.gov (United States)

    d'Agapeyeff, A.

    1986-01-01

    Intended for potential business users, this paper describes the main characteristics of expert systems; discusses practical use considerations; presents a taxonomy of the systems; and reviews several expert system development projects in business and industry. (MBR)

  8. Calo trigger acquisition system

    CERN Multimedia

    Franchini, Matteo

    2016-01-01

    Calo trigger acquisition system - Evolution of the acquisition system from a multiple boards system (upper, orange cables) to a single board one (below, light blue cables) where all the channels are collected in a single board.

  9. for hybrid dynamical systems

    Directory of Open Access Journals (Sweden)

    Wassim M. Haddad

    2001-01-01

    Full Text Available In this paper we develop a unified dynamical systems framework for a general class of systems possessing left-continuous flows; that is, left-continuous dynamical systems. These systems are shown to generalize virtually all existing notions of dynamical systems and include hybrid, impulsive, and switching dynamical systems as special cases. Furthermore, we generalize dissipativity, passivity, and nonexpansivity theory to left-continuous dynamical systems. Specifically, the classical concepts of system storage functions and supply rates are extended to left-continuous dynamical systems providing a generalized hybrid system energy interpretation in terms of stored energy, dissipated energy over the continuous-time dynamics, and dissipated energy over the resetting events. Finally, the generalized dissipativity notions are used to develop general stability criteria for feedback interconnections of left-continuous dynamical systems. These results generalize the positivity and small gain theorems to the case of left-continuous, hybrid, and impulsive dynamical systems.

  10. Autonomic Nervous System Disorders

    Science.gov (United States)

    Your autonomic nervous system is the part of your nervous system that controls involuntary actions, such as the beating of your heart ... breathing and swallowing Erectile dysfunction in men Autonomic nervous system disorders can occur alone or as the result ...

  11. Small test SDHW systems

    DEFF Research Database (Denmark)

    Vejen, Niels Kristian

    1999-01-01

    Three small test SDHW systems was tested in a laboratory test facility.The three SDHW systems where all based on the low flow principe and a mantle tank but the design of the systems where different.......Three small test SDHW systems was tested in a laboratory test facility.The three SDHW systems where all based on the low flow principe and a mantle tank but the design of the systems where different....

  12. Law System in Japan

    OpenAIRE

    Andreea Lorena Ponaru

    2007-01-01

    This article attempts to present and explain the main features of the japanese law system. Japanese Law system was reformed during the domination of Tokugawa shogun family. In 1870, Foreign Governmental Systems Study Office was founded. By judicial sentences many french laws were introduced in Japanese law system. Roma-Tokyo-Berlin Alliance (1936) introduced a strong German influence in the law system. The Japanese judicial system has known five periods. In the first (1869-1888) were introduc...

  13. Gas transfer system

    International Nuclear Information System (INIS)

    The state of work on the Vivitron gas transfer system and the system functions are summarized. The system has to: evacuate the Vivitron reservoir; transfer gas from storage tanks to the Vivitron; recirculate gas during operation; transfer gas from the Vivitron to storage tanks; and assure air input. The system is now being installed. Leak alarms are given by SF6 detectors, which set off a system of forced ventilation. Another system continuously monitors the amount of SF6 in the tanks

  14. Battery systems engineering

    CERN Document Server

    Rahn, Christopher D

    2012-01-01

    A complete all-in-one reference on the important interdisciplinary topic of Battery Systems Engineering Focusing on the interdisciplinary area of battery systems engineering, this book provides the background, models, solution techniques, and systems theory that are necessary for the development of advanced battery management systems. It covers the topic from the perspective of basic electrochemistry as well as systems engineering topics and provides a basis for battery modeling for system engineering of electric and hybrid electric vehicle platforms. This original

  15. Bridge Management Systems

    DEFF Research Database (Denmark)

    Thoft-Christensen, Palle

    In this paper bridge management systems are discussed with special emphasis on management systems for reinforced concrete bridges. Management systems for prestressed concrete bridges, steel bridges, or composite bridges can be developed in a similar way.......In this paper bridge management systems are discussed with special emphasis on management systems for reinforced concrete bridges. Management systems for prestressed concrete bridges, steel bridges, or composite bridges can be developed in a similar way....

  16. Airports Geographic Information System

    Data.gov (United States)

    Department of Transportation — The Airports Geographic Information System maintains the airport and aeronautical data required to meet the demands of the Next Generation National Airspace System....

  17. Control system design method

    Science.gov (United States)

    Wilson, David G.; Robinett, III, Rush D.

    2012-02-21

    A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

  18. Neural Systems Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — As part of the Electrical and Computer Engineering Department and The Institute for System Research, the Neural Systems Laboratory studies the functionality of the...

  19. Aeronautical Information System

    Data.gov (United States)

    Department of Transportation — The Aeronautical Information System (AIS) is a leased weather automated system that provides a means of collecting and distributing aeronautical weather information...

  20. Cognitive Medical Multiagent Systems

    Directory of Open Access Journals (Sweden)

    Barna Iantovics

    2010-01-01

    Full Text Available The development of efficient and flexible agent-based medical diagnosis systems represents a recent research direction. Medical multiagent systems may improve the efficiency of traditionally developed medical computational systems, like the medical expert systems. In our previous researches, a novel cooperative medical diagnosis multiagent system called CMDS (Contract Net Based Medical Diagnosis System was proposed. CMDS system can solve flexibly a large variety of medical diagnosis problems. This paper analyses the increased intelligence of the CMDS system, which motivates its use for different medical problem’s solving.

  1. RECURSIVE SYSTEM IDENTIFICATION

    Institute of Scientific and Technical Information of China (English)

    Han-Fu Chen

    2009-01-01

    Most of existing methods in system identification with possible exception of those for linear systems are off-line in nature, and hence are nonrecursive.This paper demonstrates the recent progress in recursive system identification.The recursive identifi-cation algorithms are presented not only for linear systems (multivariate ARMAX systems) but also for nonlinear systems such as the Hammerstein and Wiener systems, and the non-linear ARX systems.The estimates generated by the algorithms are online updated and converge a.s.to the true values as time tends to infinity.

  2. Credit Management System

    Data.gov (United States)

    US Agency for International Development — Credit Management System. Outsourced Internet-based application. CMS stores and processes data related to USAID credit programs. The system provides information...

  3. A radioisotope production facility using 70-120 MeV protons

    International Nuclear Information System (INIS)

    A facility with five target stations for the production of radioisotopes is now available for use by research groups. Four production systems can accept beam intensities from 10 to 100 microamps, with the fifth being under development for proton therapy. The first target is molten LiBr, the second is molten NaI, the third system is for irradiating solid target materials, and the fourth target is molten cesium

  4. Electromagnetic interactions with nuclei and nucleons

    Energy Technology Data Exchange (ETDEWEB)

    Thornton, S.T.; Sealock, R.M.

    1990-11-10

    This report discusses the following topics: general LEGS work; photodisintegration of the deuteron; progress towards other experiments; LEGS instrumentation; major LEGS software projects; NaI detector system; nucleon detector system; waveshifting fibers; EGN prototype detector for CEBAF; photon beam facility at CEBAF; delta electroproduction in nuclei; quasielastic scattering and excitation of the Delta by {sup 4}He(e,e{prime}); and quasielastic scattering at high Q{sup 2}.

  5. Integrated Systems Health Management for Intelligent Systems

    Science.gov (United States)

    Figueroa, Fernando; Melcher, Kevin

    2011-01-01

    The implementation of an integrated system health management (ISHM) capability is fundamentally linked to the management of data, information, and knowledge (DIaK) with the purposeful objective of determining the health of a system. It is akin to having a team of experts who are all individually and collectively observing and analyzing a complex system, and communicating effectively with each other in order to arrive at an accurate and reliable assessment of its health. In this paper, concepts, procedures, and approaches are presented as a foundation for implementing an intelligent systems ]relevant ISHM capability. The capability stresses integration of DIaK from all elements of a system. Both ground-based (remote) and on-board ISHM capabilities are compared and contrasted. The information presented is the result of many years of research, development, and maturation of technologies, and of prototype implementations in operational systems.

  6. Risk-based systems configuration monitoring system

    International Nuclear Information System (INIS)

    The paper presents the work done in the frame of the Research Contract No. 6993/RB - ''Risk based systems configuration monitoring system'' part of the coordinated programme ''Development of safety related expert systems''. The aim of this contract was to develop the prototype of an expert system based on PSA technology to be use for controlling the plant systems configuration taking into account the risk. The software prototype implementation was done using Visual Basic language, under Windows environment. The implemented prototype has the following features: store data/knowledge about components and human factor; store data/knowledge about the plant system and systems components, providing facilities to modify/search data/knowledge, based on the general knowledge; generate the logic model of the system; provide minimal cut sets and path sets determination; provide information to be used by the user for configuration risk management; provide user friendly interface (graphical interface under windows). The prototype can be independently used as an operator support system or for other on-line or off-line applications. After the testing of the prototype, some of the conclusions are: the developed software can be one of the most useful tools to be used by designers, PSA analysts, operators and regulatory for evaluation of the safety and reliability of the plant systems; the structure of the General Knowledge Base included into the prototype offers the possibility to combine knowledge introduced by different users. This feature can be the basis for the development of a knowledge acquisition system; the developed software and methodology can offer the basis for the risk-based data collection system development. (author). 12 refs, 30 figs

  7. Test System Impact on System Availability

    DEFF Research Database (Denmark)

    Pau, L. F.

    1987-01-01

    The specifications are presented for an imperfect automatic test system (ATS) (test frequency distribution, reliability, false alarm rate, nondetection rate) in order to account for the availability, readiness, mean time between unscheduled repairs (MTBUR), reliability, and maintenance...... of the system subject to monitoring and test. A time-dependent Markov model is presented, and applied in three cases, with examples of numerical results provided for preventive maintenance decisions, design of an automatic test system, buffer testing in computers, and data communications....

  8. L-system fractals

    CERN Document Server

    Mishra, Jibitesh

    2007-01-01

    The book covers all the fundamental aspects of generating fractals through L-system. Also it provides insight to various researches in this area for generating fractals through L-system approach & estimating dimensions. Also it discusses various applications of L-system fractals. Key Features: - Fractals generated from L-System including hybrid fractals - Dimension calculation for L-system fractals - Images & codes for L-system fractals - Research directions in the area of L-system fractals - Usage of various freely downloadable tools in this area - Fractals generated from L-System including hybrid fractals- Dimension calculation for L-system fractals- Images & codes for L-system fractals- Research directions in the area of L-system fractals- Usage of various freely downloadable tools in this area

  9. Forming different planetary systems

    Institute of Scientific and Technical Information of China (English)

    Ji-Lin Zhou; Ji-Wei Xie; Hui-Gen Liu; Hui Zhang; Yi-Sui Sun

    2012-01-01

    With the increasing number of detected exoplanet samples,the statistical properties of planetary systems have become much clearer.In this review,we summarize the major statistical results that have been revealed mainly by radial velocity and transiting observations,and try to interpret them within the scope of the classical core-accretion scenario of planet formation,especially in the formation of different orbital architectures for planetary systems around main sequence stars.Based on the different possible formation routes for different planet systems,we tentatively classify them into three major catalogs:hot Jupiter systems,standard systems and distant giant planet systems.The standard systems can be further categorized into three sub-types under different circumstances:solar-like systems,hot Super-Earth systems,and subgiant planet systems.We also review the theory of planet detection and formation in binary systems as well as planets in star clusters.

  10. Nai Baoer,the Nobel Prize of Literature and "Literahure Localization%奈保尔、诺贝尔文学奖与“文学本土性”

    Institute of Scientific and Technical Information of China (English)

    张喜洋

    2002-01-01

    杨匡汉坚决主张本土化——但不是保守的而是开放的,是将他者包容进来,在异与变的碰撞中把本土一些相对稳定的、具有历史连续性的观念重新解读,以形成当代表述形式并对全球化产生的“反冲击”。孟繁华认为传统的批评方法、基本概念、关键词语已被渐次废除,代之而起的是他者的概念群,构成了当代文艺学发展的两难处境,但经过整合与重建,必有新成果涌现出来。金惠敏认为“回到主体”的对话,其意义仅在于使对话在预设的原始主体的前提上成为可能:而绝不是说在对话中虽身经百战而毫发未损的自我确认。“如果全球化是一种进攻型的帝国主义,那么在狭隘民族主义意识中徘徊的则是防御型的帝国主义”。李珺平认为,“本土化”不如“本土性”确切,因为前者试图“化”一切而显出霸气而后者只是提醒别忘记本土特点因而显得平和一些。“全球化背景”对中国文学理论本土性问题意味着既要从Universal(世界的、普遍的)角度,也要从Manifold(多样的)或Varied-dimension(多维的)角度,将中国文论的异质性问题考虑进去。王钦峰尝试从后现代主义角度解构“本土”,认为“本土化”的号召力是以民族文化的过去为基础的,其情感成份多而理性成分少,它可能把国家或民族推到固步自封的老路上去。林衡勋认为,现当代中国学者文论著作虽多,但大都采用“西方丈论在中国”而不是“中国文论在世界”的方式。张喜洋通过解析奈保尔个案,指出,“诺贝尔文学奖”作为文化上的全球性事件,实质是要求多种多样的“本土”文化去参予。杨飚告诫人们注意“本土化”口号背后可能潜藏的极端民族主义。蒋淑娴强调以世界眼光、本土意识重建当代文论,反对后现代主义的一味消解。殷鉴认为,20世纪中国文学的“欧化”实际上就是一次“本土化”。邓玉环呼吁在全球化和本土化两极之间寻求一个恰当的融合点。

  11. Three-dimensional analysis of internal flow characteristics in the injection nozzle tip of direct-injection diesel engines; Sanjigen suchi kaiseki ni yoru DI diesel kikan no nenryo funsha nozzle nai ryudo tokusei no kaimei

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, H.; Matsui, Y.; Kimura, S. [Nissan Motor Co. Ltd. Tokyo (Japan)

    1997-10-01

    To reduce the exhaust emissions and fuel consumption of direct-injection diesel engines, it is essential to optimize the fuel injection equipment closely related to combustion and emission characteristics. In this study, three-dimensional computation has been applied to investigate the effects of the injection nozzle specifications (e.g., sac volume, round shape at the inlet of the nozzle hole) and needle tip deviation on internal flow characteristics. The computational results revealed that the effects of the nozzle specifications and needle tip deviation with a smaller needle lift on internal flow characteristics and a general approach to optimize the injection nozzle specifications were obtained. 3 refs., 10 figs., 1 tab.

  12. Seismic tomography inversion in the case that sources and receivers are distributed out of a 2-D plane; Shingen jushinten ga nijigen heimennai ni nai baai no danseiha tomography kaiseki ni kansuru kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yokota, T.; Miyazaki, T. [Geological Survey of Japan, Tsukuba (Japan); Rokugawa, S.; Matsushima, J. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Ashida, Y. [Kyoto University, Kyoto (Japan). Faculty of Engineering

    1996-10-01

    In the case where sources and receivers are not distributed on a 2-D plane, seismic tomography inversion was studied. In tomography experiments, the existing wells are generally used. In such case, sources and receivers are frequently not distributed on a 2-D plane. The 2.5-D analysis method including 2-D structure and 3-D ray-tracing was thus developed. This method is featured by less memory necessary for ray-tracing calculation, and the same algorithm for velocity determination as 2-D analysis method. In previous methods, since analysis is generally carried out by projecting sources and receivers on a certain assumed 2-D plane, it can derive correct results in the case of constant velocity and straight ray, however, in the other case, it derives incorrect results. Application of 3-D tomography requires a large amount of memory, and falls into poor convergence because of various parameters. The 2.5-D analysis method can avoid these demerits. This analysis method was applied to the data obtained in Ogiri area, Kagoshima prefecture. 5 refs., 3 figs., 2 tabs.

  13. Site systems engineering: Systems engineering management plan

    Energy Technology Data Exchange (ETDEWEB)

    Grygiel, M.L. [Westinghouse Hanford Co., Richland, WA (United States)

    1996-05-03

    The Site Systems Engineering Management Plan (SEMP) is the Westinghouse Hanford Company (WHC) implementation document for the Hanford Site Systems Engineering Policy, (RLPD 430.1) and Systems Engineering Criteria Document and Implementing Directive, (RLID 430.1). These documents define the US Department of Energy (DOE), Richland Operations Office (RL) processes and products to be used at Hanford to implement the systems engineering process at the site level. This SEMP describes the products being provided by the site systems engineering activity in fiscal year (FY) 1996 and the associated schedule. It also includes the procedural approach being taken by the site level systems engineering activity in the development of these products and the intended uses for the products in the integrated planning process in response to the DOE policy and implementing directives. The scope of the systems engineering process is to define a set of activities and products to be used at the site level during FY 1996 or until the successful Project Hanford Management Contractor (PHMC) is onsite as a result of contract award from Request For Proposal DE-RP06-96RL13200. Following installation of the new contractor, a long-term set of systems engineering procedures and products will be defined for management of the Hanford Project. The extent to which each project applies the systems engineering process and the specific tools used are determined by the project`s management.

  14. Hot Spot Removal System: System description

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    Hazardous wastes contaminated with radionuclides, chemicals, and explosives exist across the Department of Energy complex and need to be remediated due to environmental concerns. Currently, an opportunity is being developed to dramatically reduce remediation costs and to assist in the acceleration of schedules associated with these wastes by deploying a Hot Spot Removal System. Removing the hot spot from the waste site will remove risk driver(s) and enable another, more cost effective process/option/remedial alternative (i.e., capping) to be applied to the remainder of the site. The Hot Spot Removal System consists of a suite of technologies that will be utilized to locate and remove source terms. Components of the system can also be used in a variety of other cleanup activities. This Hot Spot Removal System Description document presents technologies that were considered for possible inclusion in the Hot Spot Removal System, technologies made available to the Hot Spot Removal System, industrial interest in the Hot Spot Removal System`s subsystems, the schedule required for the Hot Spot Removal System, the evaluation of the relevant technologies, and the recommendations for equipment and technologies as stated in the Plan section.

  15. Hot Spot Removal System: System description

    International Nuclear Information System (INIS)

    Hazardous wastes contaminated with radionuclides, chemicals, and explosives exist across the Department of Energy complex and need to be remediated due to environmental concerns. Currently, an opportunity is being developed to dramatically reduce remediation costs and to assist in the acceleration of schedules associated with these wastes by deploying a Hot Spot Removal System. Removing the hot spot from the waste site will remove risk driver(s) and enable another, more cost effective process/option/remedial alternative (i.e., capping) to be applied to the remainder of the site. The Hot Spot Removal System consists of a suite of technologies that will be utilized to locate and remove source terms. Components of the system can also be used in a variety of other cleanup activities. This Hot Spot Removal System Description document presents technologies that were considered for possible inclusion in the Hot Spot Removal System, technologies made available to the Hot Spot Removal System, industrial interest in the Hot Spot Removal System''s subsystems, the schedule required for the Hot Spot Removal System, the evaluation of the relevant technologies, and the recommendations for equipment and technologies as stated in the Plan section

  16. Recommender Systems for Social Tagging Systems

    CERN Document Server

    Balby Marinho, Leandro

    2012-01-01

    Social Tagging Systems are web applications in which users upload resources (e.g., bookmarks, videos, photos, etc.) and annotate it with a list of freely chosen keywords called tags. This is a grassroots approach to organize a site and help users to find the resources they are interested in. Social tagging systems are open and inherently social; features that have been proven to encourage participation. However, with the large popularity of these systems and the increasing amount of user-contributed content, information overload rapidly becomes an issue. Recommender Systems are well known appl

  17. Novel central nervous system drug delivery systems.

    Science.gov (United States)

    Stockwell, Jocelyn; Abdi, Nabiha; Lu, Xiaofan; Maheshwari, Oshin; Taghibiglou, Changiz

    2014-05-01

    For decades, biomedical and pharmaceutical researchers have worked to devise new and more effective therapeutics to treat diseases affecting the central nervous system. The blood-brain barrier effectively protects the brain, but poses a profound challenge to drug delivery across this barrier. Many traditional drugs cannot cross the blood-brain barrier in appreciable concentrations, with less than 1% of most drugs reaching the central nervous system, leading to a lack of available treatments for many central nervous system diseases, such as stroke, neurodegenerative disorders, and brain tumors. Due to the ineffective nature of most treatments for central nervous system disorders, the development of novel drug delivery systems is an area of great interest and active research. Multiple novel strategies show promise for effective central nervous system drug delivery, giving potential for more effective and safer therapies in the future. This review outlines several novel drug delivery techniques, including intranasal drug delivery, nanoparticles, drug modifications, convection-enhanced infusion, and ultrasound-mediated drug delivery. It also assesses possible clinical applications, limitations, and examples of current clinical and preclinical research for each of these drug delivery approaches. Improved central nervous system drug delivery is extremely important and will allow for improved treatment of central nervous system diseases, causing improved therapies for those who are affected by central nervous system diseases.

  18. Power system protection 2 systems and methods

    CERN Document Server

    1995-01-01

    The worldwide growth in demand for electricity has forced the pace of developments in electrical power system design to meet consumer needs for reliable, secure and cheap supplies. Power system protection, as a technology essential to high quality supply, is widely recognised as a specialism of growing and often critical importance, in which power system needs and technological progress have combined to result in rapid developments in policy and practice in recent years. In the United Kingdom, the need for appropriate training in power system protection was recognised in the early 1960s with t

  19. CDMA systems capacity engineering

    CERN Document Server

    Kim, Kiseon

    2004-01-01

    This new hands-on resource tackles capacity planning and engineering issues that are crucial to optimizing wireless communication systems performance. Going beyond the system physical level and investigating CDMA system capacity at the service level, this volume is the single-source for engineering and analyzing systems capacity and resources.

  20. Hybrid intelligent engineering systems

    CERN Document Server

    Jain, L C; Adelaide, Australia University of

    1997-01-01

    This book on hybrid intelligent engineering systems is unique, in the sense that it presents the integration of expert systems, neural networks, fuzzy systems, genetic algorithms, and chaos engineering. It shows that these new techniques enhance the capabilities of one another. A number of hybrid systems for solving engineering problems are presented.

  1. Expert Systems: An Overview.

    Science.gov (United States)

    Adiga, Sadashiv

    1984-01-01

    Discusses: (1) the architecture of expert systems; (2) features that distinguish expert systems from conventional programs; (3) conditions necessary to select a particular application for the development of successful expert systems; (4) issues to be resolved when building expert systems; and (5) limitations. Examples of selected expert systems…

  2. Modelling of Information Systems

    OpenAIRE

    Hausman, Halina

    1982-01-01

    The article discusses selected problems in methodology of designing comprehensive information systems. Main emphasis has been laid on modelling of information systems for companies. Presentation of bases for construction of models and description of their main types provides a basis allowing the author to draw conclusions concerning their application. Modelling of information systems is treated as one of stages in designing information systems.

  3. Design an Information System

    OpenAIRE

    Koch, Libor

    2016-01-01

    Main object of this thesis is design information system for warehouse management for Fi & Ho Trading Company, which will be accessible through web. Warehouse will be based on portal technology and connected with E-shop. In this thesis will be described elements of information system, resources used for realization, processes coverage by information system and complex evaluation of this information system.

  4. Information Systems Security Audit

    OpenAIRE

    Gheorghe Popescu; Veronica Adriana Popescu; Cristina Raluca Popescu

    2007-01-01

    The article covers:Defining an information system; benefits obtained by introducing new information technologies; IT management;Defining prerequisites, analysis, design, implementation of IS; Information security management system; aspects regarding IS security policy; Conceptual model of a security system; Auditing information security systems and network infrastructure security.

  5. Measuring Systemic Risk

    DEFF Research Database (Denmark)

    Acharya, Viral V.; Heje Pedersen, Lasse; Philippon, Thomas;

    We present a simple model of systemic risk and we show that each financial institution's contribution to systemic risk can be measured as its systemic expected shortfall (SES), i.e., its propensity to be undercapitalized when the system as a whole is undercapitalized. SES increases...

  6. Microsphere insulation systems

    Science.gov (United States)

    Allen, Mark S. (Inventor); Willen, Gary S. (Inventor); Mohling, Robert A. (Inventor)

    2005-01-01

    A new insulation system is provided that contains microspheres. This insulation system can be used to provide insulated panels and clamshells, and to insulate annular spaces around objects used to transfer, store, or transport cryogens and other temperature-sensitive materials. This insulation system provides better performance with reduced maintenance than current insulation systems.

  7. Information Systems Security Audit

    Directory of Open Access Journals (Sweden)

    Gheorghe Popescu

    2007-12-01

    Full Text Available The article covers:Defining an information system; benefits obtained by introducing new information technologies; IT management;Defining prerequisites, analysis, design, implementation of IS; Information security management system; aspects regarding IS security policy; Conceptual model of a security system; Auditing information security systems and network infrastructure security.

  8. Medical imaging systems

    Science.gov (United States)

    Frangioni, John V

    2013-06-25

    A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

  9. System Elements Heterogeneity

    Directory of Open Access Journals (Sweden)

    Stanislav A. Kuja

    2013-01-01

    Full Text Available The paper deals with the features of the systematic approach development, shows that the systematic approach lacks the definition of system elements divisibility. This fact simplifies the system description. The article shows that, depending on the selection of the criterion of divisibility, different types of elements with different properties are got. Depending on the selection of the criterion of divisibility, the system structure becomes multidimensional. The paper recommends to indicate the criterion of the system divisibility during the systems research. It increases the certainty of the description of a complex system and characterizes the system elements.

  10. On generalized Volterra systems

    Science.gov (United States)

    Charalambides, S. A.; Damianou, P. A.; Evripidou, C. A.

    2015-01-01

    We construct a large family of evidently integrable Hamiltonian systems which are generalizations of the KM system. The algorithm uses the root system of a complex simple Lie algebra. The Hamiltonian vector field is homogeneous cubic but in a number of cases a simple change of variables transforms such a system to a quadratic Lotka-Volterra system. We present in detail all such systems in the cases of A3, A4 and we also give some examples from higher dimensions. We classify all possible Lotka-Volterra systems that arise via this algorithm in the An case.

  11. Hybrid Action Systems

    DEFF Research Database (Denmark)

    Ronkko, Mauno; Ravn, Anders P.

    1997-01-01

    An action system framework is a predicate transformer based method for modelling and analysing distributed and reactive systems. The actions in action systems are statements in Dijkstra's guarded command language, and their semantics is given by predicate transformers. Recently, we introduced...... a differential action, which allows differential equations as primitive actions. The extension allows us to model hybrid systems with both continuous and discrete behaviour. The main result of this paper is an extension of such a hybrid action system with parallel composition. The extension does not change...... the original meaning of the parallel composition, and therefore also the ordinary action systems can be composed in parallel with the hybrid action systems....

  12. Efficient Evaluation System for Learning Management Systems

    Science.gov (United States)

    Cavus, Nadire

    2009-01-01

    A learning management system (LMS) provides the platform for web-based learning environment by enabling the management, delivery, tracking of learning, testing, communication, registration process and scheduling. There are many LMS systems on the market that can be obtained for free or through payment. It has now become an important task to choose…

  13. Beam alignment system for laser welding system

    International Nuclear Information System (INIS)

    The patent describes a beam alignment system for laser welding work pieces, such as fuel rod grids for nuclear fuel assemblies. The apparatus for performing various laser-machining comprises a beam alignment system including alignment target means, as well as means for emitting, directing and focusing the laser beam. (U.K.)

  14. Performance, Performance System, and High Performance System

    Science.gov (United States)

    Jang, Hwan Young

    2009-01-01

    This article proposes needed transitions in the field of human performance technology. The following three transitions are discussed: transitioning from training to performance, transitioning from performance to performance system, and transitioning from learning organization to high performance system. A proposed framework that comprises…

  15. The Solar System as an Exoplanetary System

    CERN Document Server

    Martin, Rebecca G

    2015-01-01

    With the availability of considerably more data, we revisit the question of how special our Solar System is, compared to observed exoplanetary systems. To this goal, we employ a mathematical transformation that allows for a meaningful, statistical comparison. We find that the masses and densities of the giant planets in our Solar System are very typical, as is the age of the Solar System. While the orbital location of Jupiter is somewhat of an outlier, this is most likely due to strong selection effects towards short-period planets. The eccentricities of the planets in our Solar System are relatively small compared to those in observed exosolar systems, but still consistent with the expectations for an 8-planet system (and could, in addition, reflect a selection bias towards high-eccentricity planets). The two characteristics of the Solar System that we find to be most special are the lack of super-Earths with orbital periods of days to months and the general lack of planets inside of the orbital radius of Me...

  16. Applications of membrane systems in distributed systems

    Institute of Scientific and Technical Information of China (English)

    Aneta Binder; Rudolf Freund; Georg Lojka; Marion Oswald

    2007-01-01

    Based on the biological model of cell-to-cell communication proposed by A. Rustom et al. (Science, 2004, 303: 1007-1010), we investigate the possibilities to apply P systems with dynamic channels transporting membrane vesicles for describing processes in distributed systems.

  17. Innovative system of very wide field optical sensors for space surveillance in the LEO region

    Science.gov (United States)

    Dimare, L.; Farnocchia, D.; Gronchi, G.; Milani, A.; Bernardi, F.; Rossi, A.

    2011-09-01

    We present the results of a large scale simulation, reproducing the behavior of a data center for the build-up and maintenance of a complete catalog of space debris in the upper part of the low Earth orbits region (LEO). The purpose is to determine the achievable performances of a network of advanced optical sensors, through the use of the newest orbit determination algorithms developed by the Department of Mathematics of Pisa (DM). Such a network was designed and proposed to the European Space Agency (ESA) in the Space Situational Awareness (SSA) framework by Carlo Gavazzi Space SpA (CGS), Istituto Nazionale di Astrofisica (INAF), DM and Istituto di Scienza e Tecnologie dell'Informazione (ISTI-CNR). The latest developed orbit determination algorithms were used to process simulated observations from the proposed network. In particular two innovative methods for preliminary orbit determination based on the first integrals of the Kepler problem were compared, by using them to process the same data. In both cases, the results showed that it is possible to use a network of optical sensors to build up a catalog containing more than 98% of the objects with perigee height between 1100 and 2000 km, and diameter greater than 8 cm. Such a catalog is obtained in just two months of observations. However, such results depend upon specific assumptions on the sensor and on the software technologies.

  18. Dynamical system synchronization

    CERN Document Server

    Luo, Albert C J

    2013-01-01

    Dynamical System Synchronization (DSS) meticulously presents for the first time the theory of dynamical systems synchronization based on the local singularity theory of discontinuous dynamical systems. The book details the sufficient and necessary conditions for dynamical systems synchronizations, through extensive mathematical expression. Techniques for engineering implementation of DSS are clearly presented compared with the existing techniques.  This book also:  Presents novel concepts and methods for dynamical system synchronization Extends beyond the Lyapunov theory for dynamical system synchronization Introduces companion and synchronization of discrete dynamical systems Includes local singularity theory for discontinuous dynamical systems Covers the invariant domains of synchronization Features more than 75 illustrations Dynamical System Synchronization is an ideal book for those interested in better understanding new concepts and methodology for dynamical system synchronization, local singularity...

  19. Type Systems for Bigraphs

    DEFF Research Database (Denmark)

    Elsborg, Ebbe; Hildebrandt, Thomas; Sangiorgi, Davide

    We propose a novel and uniform approach to type systems for (process) calculi, which roughly pushes the challenge of designing type systems and proving properties about them to the meta-model of bigraphs. Concretely, we propose to define type systems for the term language for bigraphs, which...... of controls and a set of reaction rules, collectively a bigraphical reactive system (BRS). Possible advantages of developing bigraphical type systems include: a deeper understanding of a type system itself and its properties; transfer of the type systems to the concrete family of calculi that the BRS models......; and the possibility of modularly adapting the type systems to extensions of the BRS (with new controls). As proof of concept we present a model of a pi-calculus, develop an i/o-type system with subtyping on this model, prove crucial properties (including subject reduction) for this type system, and transfer...

  20. GAME INFORMATION SYSTEM

    Directory of Open Access Journals (Sweden)

    Spits Warnars

    2010-06-01

    Full Text Available In this Information system age many organizations consider information system as their weapon tocompete or gain competitive advantage or give the best services for non profit organizations. GameInformation System as combining Information System and game is breakthrough to achieveorganizations’ performance. The Game Information System will run the Information System with gameand how game can be implemented to run the Information System. Game is not only for fun andentertainment, but will be a challenge to combine fun and entertainment with Information System. TheChallenge to run the information system with entertainment, deliver the entertainment with informationsystem all at once. Game information system can be implemented in many sectors as like the informationsystem itself but in difference’s view. A view of game which people can joy and happy and do theirtransaction as a fun things.

  1. Intrusion Detection System: Security Monitoring System

    Directory of Open Access Journals (Sweden)

    ShabnamNoorani,

    2015-10-01

    Full Text Available An intrusion detection system (IDS is an ad hoc security solution to protect flawed computer systems. It works like a burglar alarm that goes off if someone tampers with or manages to get past other security mechanisms such as authentication mechanisms and firewalls. An Intrusion Detection System (IDS is a device or a software application that monitors network or system activities for malicious activities or policy violations and produces reports to a management station.Intrusion Detection System (IDS has been used as a vital instrument in defending the network from this malicious or abnormal activity..In this paper we are comparing host based and network based IDS and various types of attacks possible on IDS.

  2. Local hospital systems: forerunners of regional systems?

    Science.gov (United States)

    Luke, R D

    1992-01-01

    Over the past several decades, the hospital industry has been undergoing a major organizational change that has until now been little examined. Local hospital systems (LHSs) are combinations of two or more hospitals that are in the same company and located in or around the same metropolitan areas in this country. This article presents the first detailed examination of the 402 such systems that have been identified to date. LHSs offer great potential for achieving the cost, quality, and access benefits that are often attributable to regional systems. The degree to which LHSs have attained some basic structural features expected of regional systems are examined. Differences are compared within ownership categories. Issues and challenges facing leaders in the field, should they hope to achieve the potential of regional systems, are discussed. PMID:10122669

  3. Photovoltaic systems and applications

    Energy Technology Data Exchange (ETDEWEB)

    1982-01-01

    Abstracts are given of presentations given at a project review meeting held at Albuquerque, NM. The proceedings cover the past accomplishments and current activities of the Photovoltaic Systems Research, Balance-of-System Technology Development and System Application Experiments Projects at Sandia National Laboratories. The status of intermediate system application experiments and residential system analysis is emphasized. Some discussion of the future of the Photovoltaic Program in general, and the Sandia projects in particular is also presented.

  4. Systems Thinking About Purpose

    OpenAIRE

    Gaye Lewis

    2002-01-01

    This paper argues that in the context of human activity systems, the concept of purpose is critically important and that giving purpose a central role in the development and management of human activity systems can lead to more flexible, effective and autonomous systems. The systems thinking literature is reviewed in order to consolidate and assess current thinking about purpose. The importance of intrinsic purpose is highlighted. Implications for practice in terms of information systems desi...

  5. Discourses of systems engineering

    OpenAIRE

    Akeel, U. U.; Bell, S J

    2013-01-01

    Systems engineering is unique in being characterised by its methods rather than its artefacts. Consequently, the scope of systems engineering is difficult to define. While some systems engineers contend that systems engineering is capable of addressing sociotechnical problems, including climate change and terrorism, others argue that it is strictly a technical field. The paper presents the results of a discourse analysis of systems engineering textbooks, journal articles, and a...

  6. Systems interface biology

    OpenAIRE

    Francis J Doyle; Stelling, Jörg

    2006-01-01

    The field of systems biology has attracted the attention of biologists, engineers, mathematicians, physicists, chemists and others in an endeavour to create systems-level understanding of complex biological networks. In particular, systems engineering methods are finding unique opportunities in characterizing the rich behaviour exhibited by biological systems. In the same manner, these new classes of biological problems are motivating novel developments in theoretical systems approaches. Henc...

  7. Evolvable synthetic neural system

    Science.gov (United States)

    Curtis, Steven A. (Inventor)

    2009-01-01

    An evolvable synthetic neural system includes an evolvable neural interface operably coupled to at least one neural basis function. Each neural basis function includes an evolvable neural interface operably coupled to a heuristic neural system to perform high-level functions and an autonomic neural system to perform low-level functions. In some embodiments, the evolvable synthetic neural system is operably coupled to one or more evolvable synthetic neural systems in a hierarchy.

  8. Combustion gas scrubbing system

    Energy Technology Data Exchange (ETDEWEB)

    Dahlstrom, D.A.; Ellison, W.; Wilhelm, J.H.

    1979-04-03

    In a cooperative combination of two scrubbing systems, the first scrubbing system operates upon combustion gases with an aqueous solution to remove hydrogen chloride gas and other chlorine components. The second scrubbing system subsequently operates upon the combustion gases with a sodium-base solution to absorb sulfur oxides. The products of the two scrubbing systems are treated in combination to form a material for disposal and to generate the aqueous scrubbing solution for the chloride scrubbing system.

  9. A distribution management system

    Energy Technology Data Exchange (ETDEWEB)

    Verho, P.; Jaerventausta, P.; Kaerenlampi, M.; Paulasaari, H. [Tampere Univ. of Technology (Finland); Partanen, J. [Lappeenranta Univ. of Technology (Finland)

    1996-12-31

    The development of new distribution automation applications is considerably wide nowadays. One of the most interesting areas is the development of a distribution management system (DMS) as an expansion of the traditional SCADA system. At the power transmission level such a system is called an energy management system (EMS). The idea of these expansions is to provide supporting tools for control center operators in system analysis and operation planning. The needed data for new applications is mainly available in some existing systems. Thus the computer systems of utilities must be integrated. The main data source for the new applications in the control center are the AM/FM/GIS (i.e. the network database system), the SCADA, and the customer information system (CIS). The new functions can be embedded in some existing computer system. This means a strong dependency on the vendor of the existing system. An alternative strategy is to develop an independent system which is integrated with other computer systems using well-defined interfaces. The latter approach makes it possible to use the new applications in various computer environments, having only a weak dependency on the vendors of the other systems. In the research project this alternative is preferred and used in developing an independent distribution management system

  10. A System of Systems Approach to the EU Energy System

    Science.gov (United States)

    Jess, Tom; Madani, Kaveh; Mahlooji, Maral; Ristic, Bora

    2016-04-01

    Around the world, measures to prevent dangerous climate change are being adopted and may change energy systems fundamentally. The European Union (EU) is committed to reducing greenhouse gas emission by 20% by 2020 and by 80-95% by 2050. In order to achieve this, EU member states aim to increase the share of renewables in the energy mix to 20% by 2020. This commitment comes as part of a series of other aims, principles, and policies to reform the EU's energy system. Cost-efficiency in the emissions reductions measures as well as strategic goals under the Resource Efficient Europe flagship initiative which would include a more prudent approach to other natural resources such as water and land. Using the "System of Systems Approach", as from Hadian and Madani (2015), energy sources' Relative Aggregate Footprints (RAF) in the EU are evaluated. RAF aggregates across four criteria: carbon footprint, water footprint, land footprint, and economic cost. The four criteria are weighted by resource availability across the EU and for each Member State. This provides an evaluation of the overall resource use efficiency of the EU's energy portfolio and gives insight into the differences in the desirability of energy sources across Member States. Broadly, nuclear, onshore wind, and geothermal are most desirable under equal criteria weights and EU average weighting introduces only small changes in the relative performance of only few technologies. The member state specific weightings show that most countries have similar energy technology preferences. However, the UK deviates most strongly from the average, with an even stronger preference for nuclear and coal. Sweden, Malta and Finland also deviate from the typical preferences indicating the complexity in play in reforming the EU energy system. Reference Hadian S, Madani K (2015) A System of Systems Approach to Energy Sustainability Assessment: Are All Renewables Really Green? Ecological Indicators, 52, 194-206.

  11. Modeling Power Systems as Complex Adaptive Systems

    Energy Technology Data Exchange (ETDEWEB)

    Chassin, David P.; Malard, Joel M.; Posse, Christian; Gangopadhyaya, Asim; Lu, Ning; Katipamula, Srinivas; Mallow, J V.

    2004-12-30

    Physical analogs have shown considerable promise for understanding the behavior of complex adaptive systems, including macroeconomics, biological systems, social networks, and electric power markets. Many of today's most challenging technical and policy questions can be reduced to a distributed economic control problem. Indeed, economically based control of large-scale systems is founded on the conjecture that the price-based regulation (e.g., auctions, markets) results in an optimal allocation of resources and emergent optimal system control. This report explores the state-of-the-art physical analogs for understanding the behavior of some econophysical systems and deriving stable and robust control strategies for using them. We review and discuss applications of some analytic methods based on a thermodynamic metaphor, according to which the interplay between system entropy and conservation laws gives rise to intuitive and governing global properties of complex systems that cannot be otherwise understood. We apply these methods to the question of how power markets can be expected to behave under a variety of conditions.

  12. Micro Information Systems

    DEFF Research Database (Denmark)

    Ulslev Pedersen, Rasmus; Kühn Pedersen, Mogens

    2014-01-01

    such as medical and manufacturing. These new sensor applications have implications for information systems (IS) and, the authors visualize this new class of information systems as fractals growing from an established class of systems; namely that of information systems (IS). The identified applications...... and implications are used as an empirical basis for creating a model for these small new information systems. Such sensor systems are called embedded systems in the technical sciences, and the authors want to couple it with general IS. They call the merger of these two important research areas (IS and embedded...... systems) for micro information systems (micro-IS). It is intended as a new research field within IS research. An initial framework model is established, which seeks to capture both the possibilities and constraints of this new paradigm, while looking simultaneously at the fundamental IS and ICT aspects...

  13. Rover waste assay system

    Energy Technology Data Exchange (ETDEWEB)

    Akers, D.W.; Stoots, C.M.; Kraft, N.C.; Marts, D.J. [Idaho National Engineering Lab., Idaho Falls, ID (United States)

    1997-11-01

    The Rover Waste Assay System (RWAS) is a nondestructive assay system designed for the rapid assay of highly-enriched {sup 235}U contaminated piping, tank sections, and debris from the Rover nuclear rocket fuel processing facility at the Idaho Chemical Processing Plant. A scanning system translates a NaI(Tl) detector/collimator system over the structural components where both relative and calibrated measurements for {sup 137}Cs are made. Uranium-235 concentrations are in operation and is sufficiently automated that most functions are performed by the computer system. These functions include system calibration, problem identification, collimator control, data analysis, and reporting. Calibration of the system was done through a combination of measurements on calibration standards and benchmarked modeling. A description of the system is presented along with the methods and uncertainties associated with the calibration and analysis of the system for components from the Rover facility. 4 refs., 2 figs., 4 tabs.

  14. Rover waste assay system

    International Nuclear Information System (INIS)

    The Rover Waste Assay System (RWAS) is a nondestructive assay system designed for the rapid assay of highly-enriched 235U contaminated piping, tank sections, and debris from the Rover nuclear rocket fuel processing facility at the Idaho Chemical Processing Plant. A scanning system translates a NaI(Tl) detector/collimator system over the structural components where both relative and calibrated measurements for 137Cs are made. Uranium-235 concentrations are in operation and is sufficiently automated that most functions are performed by the computer system. These functions include system calibration, problem identification, collimator control, data analysis, and reporting. Calibration of the system was done through a combination of measurements on calibration standards and benchmarked modeling. A description of the system is presented along with the methods and uncertainties associated with the calibration and analysis of the system for components from the Rover facility. 4 refs., 2 figs., 4 tabs

  15. Embedded systems handbook networked embedded systems

    CERN Document Server

    Zurawski, Richard

    2009-01-01

    Considered a standard industry resource, the Embedded Systems Handbook provided researchers and technicians with the authoritative information needed to launch a wealth of diverse applications, including those in automotive electronics, industrial automated systems, and building automation and control. Now a new resource is required to report on current developments and provide a technical reference for those looking to move the field forward yet again. Divided into two volumes to accommodate this growth, the Embedded Systems Handbook, Second Edition presents a comprehensive view on this area

  16. VIRTUAL SYSTEM METHOD FOR SYSTEM TREE

    Institute of Scientific and Technical Information of China (English)

    ZHENGZHONGGUO

    1995-01-01

    A machine,or other type of “system”,can often be divided into several subsystems(components) and these subsystems again can be divided into sevreral subsystems(second generation).This process forms a system tree.To assess the reliability of the machine based on data from the trials of components of the machine,virtual system method is employed.It is proved in the paper that the lower confident limit of the reliability of the machine set by the virtual system method is level consistent and asymptotically optimal while the one set by Lindstrom-Maddens method is not.

  17. Nonlinearity of colloid systems oxyhydrate systems

    CERN Document Server

    Sucharev, Yuri I

    2008-01-01

    The present monograph is the first systematic study of the non-linear characteristic of gel oxy-hydrate systems involving d- and f- elements. These are the oxyhydrates of rare-earth elements and oxides - hydroxides of d- elements (zirconium, niobium, titanium, etc.) The non-linearity of these gel systems introduces fundamental peculiarities into their structure and, consequently, their properties. The polymer-conformational diversity of energetically congenial gel fragments, which continu-ously transform under the effect of, for instance, system dissipation heat, is central to the au-thor's hy

  18. Expert systems and computer based industrial systems

    International Nuclear Information System (INIS)

    Framentec is the artificial intelligence subsidiary of FRAMATOME. It is involved in expert-system activities of Shells, developments, methodology and software for maintenance (Maintex) and consulting and methodology. Specific applications in the nuclear field are presented. The first is an expert system to assist in the piping support design prototype, the second is an expert system that assists an ultrasonic testing operator in determining the nature of a welding defect and the third is a welding machine diagnosis advisor. Maintex is a software tool to provide assistance in the repair of complex industrial equipment. (author)

  19. Flash evaporator systems test

    Science.gov (United States)

    Dietz, J. B.

    1976-01-01

    A flash evaporator heat rejection system representative of that proposed for the space shuttle orbiter underwent extensive system testing at the NASA Johnson Space Center (JSC) to determine its operational suitability and to establish system performance/operational characteristics for use in the shuttle system. During the tests the evaporator system demonstrated its suitability to meet the shuttle requirements by: (1) efficient operation with 90 to 95% water evaporation efficiency, (2) control of outlet temperature to 40 + or - 2 F for partial heat load operation, (3) stability of control system for rapid changes in Freon inlet temperature, and (4) repeated dormant-to-active device operation without any startup procedures.

  20. Generalized L systems

    Institute of Scientific and Technical Information of China (English)

    陆汝钤; 张文妍

    2002-01-01

    This paper proposes the concept of generalized L systems, GL systems for short, which can describe asynchronized concurrent phenomena. We have proved that the GL systems are proper extensions of the traditional L systems. We have also defined a classification of GL systems and proved a sufficient and necessary condition for the equivalence of two subclasses of GL systems: two quivalent, iff k = j and there exists a common divisor g of all mr and a common divisor h of all ni such that i: mi/g = ni/h.

  1. Hydraulic Yaw System

    DEFF Research Database (Denmark)

    Stubkier, Søren; Pedersen, Henrik C.; Mørkholt, M.

    system and rotor shaft when utilizing the soft yaw drive concept compared to the original stiff yaw system. The physical demands of the hydraulic yaw system are furthermore examined for a life time of 20 years. Based on the extrapolated loads, the duty cycles show that it is possible to construct...... a hydraulic soft yaw system, which is able to reduce the loads on the wind turbine significantly. A full scale hydraulic yaw test rig is available for experiments and tests. The test rig is presented as well as the system schematics of the hydraulic yaw system....

  2. Microelectronic systems 1 checkbook

    CERN Document Server

    Vears, R E

    2013-01-01

    Microelectronic Systems 1 Checkbook provides coverage of the Business and Technician Education Council level 1 unit in Microelectronic Systems. However, it can be regarded as a basic textbook in microelectronic systems for a much wider range of studies. Each topic considered in the text is presented in a way that assumes the reader has little prior knowledge of electronics. The aim of the book is to provide an introduction to the concept of systems, to differentiate analogue and digital systems, and to describe the nature of microprocessor-controlled systems. An introduction to programming is

  3. Information system development activities and inquiring systems

    DEFF Research Database (Denmark)

    Carugati, Andrea

    2008-01-01

    This article presents a framework that maps information system development (ISD) activities on systems for the creation of knowledge. This work addresses the relevant and persisting problem of improving the chances of ISD success. The article builds upon previous research on knowledge aspects...... of ISD, abandoning the idea of a monolithic approach to knowledge and presenting a pluralistic approach based on the idea that different inquiring systems can support micro-level ISD activities. The article is divided into two parts. The first part presents the theoretical development of the framework...... based on ISD literature and on Churchman's (1971) inquiring systems. The second part presents the use of the framework in an ISD project. The case is used to show the applicability of the framework and to highlight the advantages of this approach. The main theoretical implication is that the framework...

  4. Fault injection system for automatic testing system

    Institute of Scientific and Technical Information of China (English)

    王胜文; 洪炳熔

    2003-01-01

    Considering the deficiency of the means for confirming the attribution of fault redundancy in the re-search of Automatic Testing System(ATS) , a fault-injection system has been proposed to study fault redundancyof automatic testing system through compurison. By means of a fault-imbeded environmental simulation, thefaults injected at the input level of the software are under test. These faults may induce inherent failure mode,thus bringing about unexpected output, and the anticipated goal of the test is attained. The fault injection con-sists of voltage signal generator, current signal generator and rear drive circuit which are specially developed,and the ATS can work regularly by means of software simulation. The experimental results indicate that the faultinjection system can find the deficiency of the automatic testing software, and identify the preference of fault re-dundancy. On the other hand, some soft deficiency never exposed before can be identified by analyzing the tes-ting results.

  5. Business System Planning Project System Requirements Specification

    Energy Technology Data Exchange (ETDEWEB)

    NELSON, R.E.

    2000-09-08

    The purpose of the Business Systems Planning Project System Requirements Specification (SRS) is to provide the outline and contents of the requirements for the CH2M HILL Hanford Group, Inc. (CHG) integrated business and technical information systems. The SRS will translate proposed objectives into the statement of the functions that are to be performed and data and information flows that they require. The requirements gathering methodology will use (1) facilitated group requirement sessions; (2) individual interviews; (3) surveys; and (4) document reviews. The requirements will be verified and validated through coordination of the technical requirement team and CHG Managers. The SRS document used the content and format specified in Lockheed Martin Services, Inc. Organization Standard Software Practices in conjunction with the Institute of Electrical and Electronics Engineers Standard 8340-1984 for Systems Requirements Documents.

  6. Feasibility Evaluation of an On-site Generator Network by the Cooperative Game Theory

    Science.gov (United States)

    Komiyama, Ryoichi; Hayashi, Taketo; Fujii, Yasumasa; Yamaji, Kenji

    On-site generator, such as CGS (cogeneration system), is allegedly considered to be an effective end-use energy system in order to accomplish primary energy conservation, CO2 emission mitigation and system cost reduction, which characteristics eventually improve the whole performance of an existing energy system for the future. Considering the drawback of installing an end-use CGS into the customer with small or middle scale floor space, however, it is difficult to achieve those distinctive features because the thermal-electricity ratio of CGS does not always be in agreement with that of customer energy demand. In order to overcome that matching deficiency, it is hence better to organize an on-site generator network based on mutual electricity and heating transmission. But focusing on some cogenerators underlying their behaviors on maximizing their own profits, this on-site network, which situation corresponds to a grand coalition, is not necessarily established because of each cogenerator’s motivation to form a partial coalition and acquire its own profit as much as possible. In this paper, we attempt to analyze the optimal operation of an on-site generator network and identify by applying the nucleolus of the cooperative game theory the optimal benefit allocation strategy in order for the cogenerators to construct the network. Regarding the installation site of this network, the center of Tokyo area is assumed, which locational information includes floor space and so forth through a GIS (geographic information system) database. The results from the nucleolus suggest that all districts should impartially obtain the benefit from organizing network for the purpose of jointly attaining the system total cost reduction.

  7. Knowledge management system as a sociotechnical system

    OpenAIRE

    Grundstein, Michel; Rosenthal-Sabroux, Camille

    2007-01-01

    The research effort started at the 2006 Hawaii Conference on System Sciences identifies seven key areas of KM research: KM Foundations, Knowledge Transfers, KM Systems, KM Research Methods, KM Success, Ethical Issues in KM, and KM Education (Jennex, 2006). In this paper, we refer to MGKME, our Model for Global Knowledge Management within the Enterprise (Grundstein & Rosenthal Sabroux, 2005; Grundstein, 2005; Grundstein, 2006). Thus, considering that KM is rooted on a Sociotechnical World that...

  8. Operating System for Runtime Reconfigurable Multiprocessor Systems

    Directory of Open Access Journals (Sweden)

    Diana Göhringer

    2011-01-01

    Full Text Available Operating systems traditionally handle the task scheduling of one or more application instances on processor-like hardware architectures. RAMPSoC, a novel runtime adaptive multiprocessor System-on-Chip, exploits the dynamic reconfiguration on FPGAs to generate, start and terminate hardware and software tasks. The hardware tasks have to be transferred to the reconfigurable hardware via a configuration access port. The software tasks can be loaded into the local memory of the respective IP core either via the configuration access port or via the on-chip communication infrastructure (e.g. a Network-on-Chip. Recent-series of Xilinx FPGAs, such as Virtex-5, provide two Internal Configuration Access Ports, which cannot be accessed simultaneously. To prevent conflicts, the access to these ports as well as the hardware resource management needs to be controlled, e.g. by a special-purpose operating system running on an embedded processor. For that purpose and to handle the relations between temporally and spatially scheduled operations, the novel approach of an operating system is of high importance. This special purpose operating system, called CAP-OS (Configuration Access Port-Operating System, which will be presented in this paper, supports the clients using the configuration port with the services of priority-based access scheduling, hardware task mapping and resource management.

  9. LIGHTWEIGHT GREEN ROOF SYSTEMS

    Science.gov (United States)

    Applying a Lightweight Green Roof System to a building can achieve in managing storm water runoff, decreasing heat gain, yielding energy savings, and mitigating the heat island effect. Currently, Most green roof systems are considerably heavy and require structural reinforceme...

  10. Highly Autonomous Systems Workshop

    Science.gov (United States)

    Doyle, R.; Rasmussen, R.; Man, G.; Patel, K.

    1998-01-01

    It is our aim by launching a series of workshops on the topic of highly autonomous systems to reach out to the larger community interested in technology development for remotely deployed systems, particularly those for exploration.

  11. Inductive Monitoring System (IMS)

    Data.gov (United States)

    National Aeronautics and Space Administration — IMS: Inductive Monitoring System The Inductive Monitoring System (IMS) is a tool that uses a data mining technique called clustering to extract models of normal...

  12. Geographical information systems

    DEFF Research Database (Denmark)

    Möller, Bernd

    2004-01-01

    The chapter gives an introduction to Geographical Information Systems (GIS) with particular focus on their application within environmental management.......The chapter gives an introduction to Geographical Information Systems (GIS) with particular focus on their application within environmental management....

  13. Immune System (For Parents)

    Science.gov (United States)

    ... lock onto them. T cells are like the soldiers, destroying the invaders that the intelligence system has ... can't be prevented, you can help your child's immune system stay stronger and fight illnesses by ...

  14. Optical discriminator system

    Science.gov (United States)

    Robelen, D. B.

    1974-01-01

    System includes lightweight, inexpensive movie camera to record simultaneously views from three different angles on same filmstrip. This is noncritical system as it is adaptable to many applications requiring similar, but diverse, viewing areas.

  15. Generalized adjoint systems

    CERN Document Server

    Serakos, Demetrios

    2015-01-01

    This book defines and develops the generalized adjoint of an input-output system. It is the result of a theoretical development and examination of the generalized adjoint concept and the conditions under which systems analysis using adjoints is valid. Results developed in this book are useful aids for the analysis and modeling of physical systems, including the development of guidance and control algorithms and in developing simulations. The generalized adjoint system is defined and is patterned similarly to adjoints of bounded linear transformations. Next the elementary properties of the generalized adjoint system are derived. For a space of input-output systems, a generalized adjoint map from this space of systems to the space of generalized adjoints is defined. Then properties of the generalized adjoint map are derived. Afterward the author demonstrates that the inverse of an input-output system may be represented in terms of the generalized adjoint. The use of generalized adjoints to determine bounds for ...

  16. Central nervous system

    Science.gov (United States)

    The central nervous system is composed of the brain and spinal cord. Your brain and spinal cord serve as the main "processing center" for your entire nervous system. They control all the workings of your body.

  17. Flight Systems Monitor Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This SBIR Phase I project will develop the Flight System Monitor which will use non-intrusive electrical monitoring (NEMO). The electronic system health of...

  18. Gleason grading system

    Science.gov (United States)

    ... medlineplus.gov/ency/patientinstructions/000920.htm Gleason grading system To use the sharing features on this page, ... score of between 5 and 7. Gleason Grading System Sometimes, it can be hard to predict how ...

  19. Human Balance System

    Science.gov (United States)

    ... Rated Nonprofit! Volunteer. Donate. Review. The Human Balance System Good balance is often taken for granted. Good ... soft, slippery, or uneven). Input from the vestibular system Sensory information about motion, equilibrium, and spatial orientation ...

  20. Interstitial hydrogen storage system

    Energy Technology Data Exchange (ETDEWEB)

    Gell, H.A.

    1980-09-30

    A metal hydride fuel system is described that incorporates a plurality of storage elements that may be individually replaced to provide a hydrogen fuel system for combustion engines having a capability of partial refueling is presented.

  1. Cross Disciplinary Biometric Systems

    CERN Document Server

    Liu, Chengjun

    2012-01-01

    Cross disciplinary biometric systems help boost the performance of the conventional systems. Not only is the recognition accuracy significantly improved, but also the robustness of the systems is greatly enhanced in the challenging environments, such as varying illumination conditions. By leveraging the cross disciplinary technologies, face recognition systems, fingerprint recognition systems, iris recognition systems, as well as image search systems all benefit in terms of recognition performance.  Take face recognition for an example, which is not only the most natural way human beings recognize the identity of each other, but also the least privacy-intrusive means because people show their face publicly every day. Face recognition systems display superb performance when they capitalize on the innovative ideas across color science, mathematics, and computer science (e.g., pattern recognition, machine learning, and image processing). The novel ideas lead to the development of new color models and effective ...

  2. Secondary systemic amyloidosis

    Science.gov (United States)

    ... systemic amyloidosis include: Endocrine failure Heart failure Kidney failure Respiratory failure When to Contact a Medical Professional Call your ... Cystic fibrosis Endocrine glands Hairy cell leukemia Heart failure - overview Hodgkin ... arthritis Sjögren syndrome Systemic lupus erythematosus Update ...

  3. Health System Measurement Project

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Health System Measurement Project tracks government data on critical U.S. health system indicators. The website presents national trend data as well as detailed...

  4. Avian respiratory system disorders

    Science.gov (United States)

    Olsen, G.H.

    1989-01-01

    Diagnosing and treating respiratory diseases in avian species requires a basic knowledge about the anatomy and physiology of this system in birds. Differences between mammalian and avian respiratory system function, diagnosis, and treatment are highlighted.

  5. BioSystems

    Data.gov (United States)

    U.S. Department of Health & Human Services — The NCBI BioSystems Database provides integrated access to biological systems and their component genes, proteins, and small molecules, as well as literature...

  6. Immune System and Disorders

    Science.gov (United States)

    Your immune system is a complex network of cells, tissues, and organs that work together to defend against germs. It ... t, to find and destroy them. If your immune system cannot do its job, the results can be ...

  7. Visitor Registration System

    Data.gov (United States)

    US Agency for International Development — Visitor Registration System (VRS) streamlines visitor check-in and check-out process for expediting visitors into USAID. The system captures visitor information...

  8. Henry Ford Health Systems

    Science.gov (United States)

    Henry Ford Health Systems evolved from a hospital into a system delivering care to 2.5 million patients and includes the Cancer Epidemiology, Prevention and Control Program, which focuses on epidemiologic and public health aspects of cancer.

  9. Information retrieval system

    Science.gov (United States)

    Berg, R. F.; Holcomb, J. E.; Kelroy, E. A.; Levine, D. A.; Mee, C., III

    1970-01-01

    Generalized information storage and retrieval system capable of generating and maintaining a file, gathering statistics, sorting output, and generating final reports for output is reviewed. File generation and file maintenance programs written for the system are general purpose routines.

  10. Voluntary Service System (VSS)

    Data.gov (United States)

    Department of Veterans Affairs — Voluntary Service System (VSS) is a national-level application which replaced the site-based Voluntary Timekeeping System (VTK). VTK was used for many years at the...

  11. Modular optical detector system

    Science.gov (United States)

    Horn, Brent A.; Renzi, Ronald F.

    2006-02-14

    A modular optical detector system. The detector system is designed to detect the presence of molecules or molecular species by inducing fluorescence with exciting radiation and detecting the emitted fluorescence. Because the system is capable of accurately detecting and measuring picomolar concentrations it is ideally suited for use with microchemical analysis systems generally and capillary chromatographic systems in particular. By employing a modular design, the detector system provides both the ability to replace various elements of the detector system without requiring extensive realignment or recalibration of the components as well as minimal user interaction with the system. In addition, the modular concept provides for the use and addition of a wide variety of components, including optical elements (lenses and filters), light sources, and detection means, to fit particular needs.

  12. Semiotic labelled deductive systems

    Energy Technology Data Exchange (ETDEWEB)

    Nossum, R.T. [Imperial College of Science, Technology and Medicine, London (United Kingdom)

    1996-12-31

    We review the class of Semiotic Models put forward by Pospelov, as well as the Labelled Deductive Systems developed by Gabbay, and construct an embedding of Semiotic Models into Labelled Deductive Systems.

  13. Saturated Switching Systems

    CERN Document Server

    Benzaouia, Abdellah

    2012-01-01

    Saturated Switching Systems treats the problem of actuator saturation, inherent in all dynamical systems by using two approaches: positive invariance in which the controller is designed to work within a region of non-saturating linear behaviour; and saturation technique which allows saturation but guarantees asymptotic stability. The results obtained are extended from the linear systems in which they were first developed to switching systems with uncertainties, 2D switching systems, switching systems with Markovian jumping and switching systems of the Takagi-Sugeno type. The text represents a thoroughly referenced distillation of results obtained in this field during the last decade. The selected tool for analysis and design of stabilizing controllers is based on multiple Lyapunov functions and linear matrix inequalities. All the results are illustrated with numerical examples and figures many of them being modelled using MATLAB®. Saturated Switching Systems will be of interest to academic researchers in con...

  14. Lungs and Respiratory System

    Science.gov (United States)

    ... How Can I Help a Friend Who Cuts? Lungs and Respiratory System KidsHealth > For Teens > Lungs and ... you didn't breathe, you couldn't live. Lungs & Respiratory System Basics Each day we breathe about ...

  15. East Asia's Security System

    OpenAIRE

    Hojzáková, Věra

    2012-01-01

    The aim of the master thesis is to characterize and evaluate the current security system in East Asia, to show the security strategies of the system actors and the existing friction points, and to assess the future development of the security system in place. For this purpose the author first defines the East Asia's security system using the conceptual tools of three international relations theories, namely neo-realism, neo-liberalism, and constructivism. In the following section, the securit...

  16. Unix operating system

    CERN Document Server

    Liu, Yukun; Guo, Liwei

    2011-01-01

    ""UNIX Operating System: The Development Tutorial via UNIX Kernel Services"" introduces the hierarchical structure, principles, applications, kernel, shells, development, and management of the UNIX operation systems multi-dimensionally and systematically. It clarifies the natural bond between physical UNIX implementation and general operating system and software engineering theories, and presents self-explanatory illustrations for readers to visualize and understand the obscure relationships and intangible processes in UNIX operating system. This book is intended for engineers and researchers

  17. Lithium battery management system

    Science.gov (United States)

    Dougherty, Thomas J.

    2012-05-08

    Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the temperature of a lithium battery system is also included.

  18. Rainfed intensive crop systems

    DEFF Research Database (Denmark)

    Olesen, Jørgen E

    2014-01-01

    This chapter focuses on the importance of intensive cropping systems in contributing to the world supply of food and feed. The impact of climate change on intensive crop production systems is also discussed.......This chapter focuses on the importance of intensive cropping systems in contributing to the world supply of food and feed. The impact of climate change on intensive crop production systems is also discussed....

  19. TMACS system description

    Energy Technology Data Exchange (ETDEWEB)

    Scaief, C.C.

    1995-10-17

    This document provides a description of the Tank Monitor and Control System (TMACS). It is intended as an introduction for those persons unfamiliar with the system as well as a reference document for the users, maintenance personnel, and system designers. In addition to describing the system, the document outlines the associated drawing documentation, provides maintenance and spare parts information, and discusses other TMACS documents that provide additional detail

  20. Interactions within wastewater systems

    OpenAIRE

    Langeveld, J.G.

    2004-01-01

    Wastewater systems consist of sewer systems and wastewater treatment works. As the performance of a wastewater treatment plant is affected by the characteristics, i.e. operation and design, of the contributing sewer systems, knowledge of the interactions between sewers and wastewater treatment works is very important when trying to understand and improve wastewater systems. The thesis comprises three main topics: Firstly, the sensitivity of wastewater treatment plant performance to influent f...