WorldWideScience

Sample records for 3-rd generation synchrotron

  1. Advanced Materials Research with 3RD Generation Synchrotron Light

    Science.gov (United States)

    Soukiassian, P.; D'angelo, M.; Enriquez, H.; Aristov, V. Yu.

    H and D surface nanochemistry on an advanced wide band gap semiconductor, silicon carbide is investigated by synchrotron radiation-based core level and valence band photoemission, infrared absorption and scanning tunneling spectroscopy, showing the 1st example of H/D-induced semiconductor surface metallization, that also occurs on a pre-oxidized surface. These results are compared to recent state-of-the-art ab-initio total energy calculations. Most interestingly, an amazing isotopic behavior is observed with a smaller charge transfer from D atoms suggesting the role of dynamical effects. Such findings are especially exciting in semiconductor physics and in interface with biology.

  2. Analysis of Coherence Properties of 3-rd Generation Synchrotron Sources and Free-Electron Lasers

    CERN Document Server

    Vartanyants, I A

    2009-01-01

    A general theoretical approach based on the results of statistical optics is used for the analysis of the transverse coherence properties of 3-rd generation synchrotron sources and x-ray free-electron lasers (XFEL). Correlation properties of the wavefields are calculated at different distances from an equivalent Gaussian Schell-model source. This model is used to describe coherence properties of the five meter undulator source at the synchrotron storage ring PETRA III. In the case of XFEL sources the decomposition of the statistical fields into a sum of independently propagating transverse modes is used for the analysis of the coherence properties of these new sources. A detailed calculation is performed for the parameters of the SASE1 undulator at the European XFEL. It is demonstrated that only a few modes contribute significantly to the total radiation field of that source.

  3. A critical experimental test of synchrotron radiation theory with 3rd generation light source

    Energy Technology Data Exchange (ETDEWEB)

    Geloni, Gianluca [European XFEL GmbH, Hamburg (Germany); Kocharyan, Vitali; Saldin, Evgeni [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

    2016-05-15

    A recent ''beam splitting'' experiment at LCLS apparently demonstrated that after a microbunched electron beam is kicked on a large angle compared to the divergence of the FEL radiation, the microbunching wave front is readjusted along the new direction of motion of the kicked beam. Therefore, coherent radiation from an undulator placed after the kicker is emitted along the kicked direction without suppression. This strong emission of coherent undulator radiation in the kicked direction cannot be explained in the framework of conventional synchrotron radiation theory. In a previous paper we explained this puzzle. We demonstrated that, in accelerator physics, the coupling of fields and particles is based, on the one hand, on the use of results from particle dynamics treated according to the absolute time convention and, on the other hand, on the use of Maxwell equations treated according to the standard (Einstein) synchronization convention. Here lies the misconception which led to the strong qualitative disagreement between theory and experiment. After the ''beam splitting'' experiment at LCLS, it became clear that the conventional theory of synchrotron radiation cannot ensure the correct description of coherent and spontaneous emission from a kicked electron beam, nor the emission from a beam with finite angular divergence, in an undulator or a bending magnet. However, this result requires further experimental confirmation. In this publication we propose an uncomplicated and inexpensive experiment to test synchrotron radiation theory at 3rd generation light sources.

  4. SESAME-A 3rd Generation Synchrotron Light Source for the Middle East

    Science.gov (United States)

    Winick, Herman

    2010-02-01

    Developed under the auspices of UNESCO and modeled on CERN, SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is an international research center in construction in Jordan. It will enable world class research by scientists from the region, reversing the brain drain. It will also build bridges between diverse societies, contributing to a culture of peace through international cooperation in science. The centerpiece is a synchrotron light source originating from BESSY I, a gift by Germany. The upgraded machine, a 2.5 GeV 3rd Generation Light Source (133m circumference, 26nm-rad emittance and 12 places for insertion devices), will provide light from infra-red to hard X-rays, offering excellent opportunities to train local scientists and attract those working abroad to return. The SESAME Council meets twice each year and presently has nine Members (Bahrain, Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, Palestinian Authority, Turkey). Members have responsibility for the project and provide the annual operations budget (1.5M US dollars in 2009, expected to rise to about 5M when operation starts in 2012-13). Jordan provided the site, building, and infrastructure. A staff of 20 is installing the 0.8 GeV BESSY I injection system. The facility will have the capacity to serve 30 or more experiments operating simultaneously. See www.sesame.org.jo )

  5. SESAME — A 3rd Generation Synchrotron Light Source for the Middle East

    Science.gov (United States)

    Å°lkü, Dinçer; Rahighi, Javad; Winick, Herman

    2007-01-01

    SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be the Middle East's first international research center. It is a cooperative venture by the scientists and governments of the region with founding members Bahrain, Egypt, Israel, Jordan, Pakistan, Palestine Authority, and Turkey. Iran is in the process of finalizing its formal membership. Other countries (Cyprus, Morocco, and the United Arab Emirates) are also expected to join. The permanent Council of member states has full responsibility for the project. Members provide the annual operating budget. Observer countries are Germany, Greece, Italy, Kuwait, Portugal, Russian Federation, Sweden, the UK, and the US. SESAME is being developed under the umbrella of UNESCO. Jordan was selected as the building site. SESAME will offer excellent opportunities for training of Middle East scientists and attract those working abroad to consider returning. SESAME will be a 2.5GeV 3rd Generation light source (emittance 26nm-rad, circumference ˜133m), providing excellent performance for structural molecular biology, molecular environmental science, surface and interface science, microelectromechanical devices, x-ray imaging, archaeological microanalysis, and materials characterization. It will cover a broad spectral range from the infrared to hard x-rays and will have 12 straight sections for insertion devices (average length 2.75m). The injector will be the BESSY I 0.8 GeV booster synchrotron which has been given as a gift from Germany. Four committees advise the Council and assist in developing the technical design, beam lines, user community, and scientific Program. The SESAME building, now in construction with funds and a site provided by Jordan, is scheduled for completion in late 2006 after which the BESSY I injector will be installed. First stored beam in the new 2.5 GeV ring is planned for 2009 with six initial beamlines planned. Some beamlines will be built by member countries

  6. SESAME - A 3rd Generation Synchrotron Light Source for the Middle East

    Science.gov (United States)

    U˝Lkü, Dinçer; Rahighi, Javad; Winick, Herman

    2007-01-01

    SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be the Middle East's first international research center. It is a cooperative venture by the scientists and governments of the region with founding members Bahrain, Egypt, Israel, Jordan, Pakistan, Palestine Authority, and Turkey. Iran is in the process of finalizing its formal membership. Other countries (Cyprus, Morocco, and the United Arab Emirates) are also expected to join. The permanent Council of member states has full responsibility for the project. Members provide the annual operating budget. Observer countries are Germany, Greece, Italy, Kuwait, Portugal, Russian Federation, Sweden, the UK, and the US. SESAME is being developed under the umbrella of UNESCO. Jordan was selected as the building site. SESAME will offer excellent opportunities for training of Middle East scientists and attract those working abroad to consider returning. SESAME will be a 2.5GeV 3rd Generation light source (emittance 26nm-rad, circumference ~133m), providing excellent performance for structural molecular biology, molecular environmental science, surface and interface science, microelectromechanical devices, x-ray imaging, archaeological microanalysis, and materials characterization. It will cover a broad spectral range from the infrared to hard x-rays and will have 12 straight sections for insertion devices (average length 2.75m). The injector will be the BESSY I 0.8 GeV booster synchrotron which has been given as a gift from Germany. Four committees advise the Council and assist in developing the technical design, beam lines, user community, and scientific Program. The SESAME building, now in construction with funds and a site provided by Jordan, is scheduled for completion in late 2006 after which the BESSY I injector will be installed. First stored beam in the new 2.5 GeV ring is planned for 2009 with six initial beamlines planned. Some beamlines will be built by member countries

  7. Development of partially-coherent wavefront propagation simulation methods for 3rd and 4th generation synchrotron radiation sources

    Science.gov (United States)

    Chubar, Oleg; Berman, Lonny; Chu, Yong S.; Fluerasu, Andrei; Hulbert, Steve; Idir, Mourad; Kaznatcheev, Konstantine; Shapiro, David; Shen, Qun; Baltser, Jana

    2011-09-01

    Partially-coherent wavefront propagation calculations have proven to be feasible and very beneficial in the design of beamlines for 3rd and 4th generation Synchrotron Radiation (SR) sources. These types of calculations use the framework of classical electrodynamics for the description, on the same accuracy level, of the emission by relativistic electrons moving in magnetic fields of accelerators, and the propagation of the emitted radiation wavefronts through beamline optical elements. This enables accurate prediction of performance characteristics for beamlines exploiting high SR brightness and/or high spectral flux. Detailed analysis of radiation degree of coherence, offered by the partially-coherent wavefront propagation method, is of paramount importance for modern storage-ring based SR sources, which, thanks to extremely small sub-nanometer-level electron beam emittances, produce substantial portions of coherent flux in X-ray spectral range. We describe the general approach to partially-coherent SR wavefront propagation simulations and present examples of such simulations performed using "Synchrotron Radiation Workshop" (SRW) code for the parameters of hard X-ray undulator based beamlines at the National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory. These examples illustrate general characteristics of partially-coherent undulator radiation beams in low-emittance SR sources, and demonstrate advantages of applying high-accuracy physical-optics simulations to the optimization and performance prediction of X-ray optical beamlines in these new sources.

  8. A Critical Experimental Test of Synchrotron Radiation Theory with 3rd Generation Light Source

    CERN Document Server

    Geloni, Gianluca; Saldin, Evgeni

    2016-01-01

    A recent "beam splitting" experiment at LCLS apparently demonstrated that after a microbunched electron beam is kicked on a large angle compared to the divergence of the FEL radiation, the microbunching wave front is readjusted along the new direction of motion of the kicked beam. Therefore, coherent radiation from an undulator placed after the kicker is emitted along the kicked direction without suppression. This strong emission of coherent undulator radiation in the kicked direction cannot be explained in the framework of conventional synchrotron radiation theory. In a previous paper we explained this puzzle. We demonstrated that, in accelerator physics, the coupling of fields and particles is based, on the one hand, on the use of results from particle dynamics treated according to the absolute time convention and, on the other hand, on the use of Maxwell equations treated according to the standard (Einstein) synchronization convention. Here lies the misconception which led to the strong qualitative disagre...

  9. Designing a 3rd generation, authenticatable attribute measurement system

    Energy Technology Data Exchange (ETDEWEB)

    Thron, Jonathan [Los Alamos National Laboratory; Karpius, Peter [Los Alamos National Laboratory; Santi, Peter [Los Alamos National Laboratory; Smith, Morag [Los Alamos National Laboratory; Vo, Duc [Los Alamos National Laboratory; Williams, Richard [Los Alamos National Laboratory

    2009-01-01

    Attribute measurement systems (AMS) are designed to measure potentially sensitive items containing Special Nuclear Materials to determine if the items possess attributes which fall within an agreed-upon range. Such systems could be used in a treaty to inspect and verify the identity of items in storage without revealing any sensitive information associated with the item. An AMS needs to satisfy two constraints: the host party needs to be sure that none of their sensitive information is released, while the inspecting party wants to have confidence that the limited amount of information they see accurately reflects the properties of the item being measured. The former involves 'certifying' the system and the latter 'authenticating' it. Previous work into designing and building AMS systems have focused more on the questions of certifiability than on the questions of authentication - although a few approaches have been investigated. The next step is to build a 3rd generation AMS which (1) makes the appropriate measurements, (2) can be certified, and (3) can be authenticated (the three generations). This paper will discuss the ideas, options, and process of producing a design for a 3rd generation AMS.

  10. Microstructure Modeling of 3rd Generation Disk Alloys

    Science.gov (United States)

    Jou, Herng-Jeng

    2010-01-01

    The objective of this program is to model, validate, and predict the precipitation microstructure evolution, using PrecipiCalc (QuesTek Innovations LLC) software, for 3rd generation Ni-based gas turbine disc superalloys during processing and service, with a set of logical and consistent experiments and characterizations. Furthermore, within this program, the originally research-oriented microstructure simulation tool will be further improved and implemented to be a useful and user-friendly engineering tool. In this report, the key accomplishment achieved during the second year (2008) of the program is summarized. The activities of this year include final selection of multicomponent thermodynamics and mobility databases, precipitate surface energy determination from nucleation experiment, multiscale comparison of predicted versus measured intragrain precipitation microstructure in quench samples showing good agreement, isothermal coarsening experiment and interaction of grain boundary and intergrain precipitates, primary microstructure of subsolvus treatment, and finally the software implementation plan for the third year of the project. In the following year, the calibrated models and simulation tools will be validated against an independently developed experimental data set, with actual disc heat treatment process conditions. Furthermore, software integration and implementation will be developed to provide material engineers valuable information in order to optimize the processing of the 3rd generation gas turbine disc alloys.

  11. Frisbee - the first artificial cervical disc of 3RD generation

    Directory of Open Access Journals (Sweden)

    Karin Büttner-Janz

    2014-03-01

    Full Text Available OBJECTIVE: The current cervical disc arthroplasty is limited by postoperative facet joint arthritis, heterotopic ossification and segmental kyphosis. The total Frisbee disc, which has an upper convex/concave non-spherical surface and a lower flat sliding surface, is a new approach for improved outcomes. Prior to clinical application, safety and suitability tests are required. METHODS: The Frisbee is the first 3rd generation disc according to a new classification of total disc because it can precisely mimic the segmental ROM, including the soft limitation of axial rotation. The ISO 18192-1 test was carried out to determine the rate of wear debris. A FE model was used to assess the safety of prosthetic components. In the sagittal plane several variables to determine the most favorable lordotic angle were evaluated. RESULTS: Two angled prosthetic plates are safer than one sliding angled core to prevent the displacement. The lordosis of 7° of the Frisbee leads to kyphosis of no more than 2° without reduction of the ROM. The wear rate of the Frisbee is five times smaller compared to an FDA-approved disc with a spherical sliding surface. CONCLUSIONS: Based on the test results, the clinical application of Frisbee can now be studied. The postoperative kyphosis observed with other devices is not an issue with the Frisbee design. Physiological ROM is combined with the significant reduction of wear debris. For these reasons the Frisbee has the potential to provide a better balanced segmental loading reducing the degeneration of the joint surface and heterotopic ossification.

  12. Searches for 3rd generation partners at the LHC

    CERN Document Server

    Tripiana, Martin

    2015-01-01

    The search for direct production of third generation squarks is a main part of the new physics programme of the LHC experiments. Unfortunately, no evidence of SUSY has been observed after the first data taking period (Run1). A non-exhaustive review of the latest results from the ATLAS and CMS experiments is here presented.

  13. CFD Evaluation of a 3rd Generation LDI Combustor

    Science.gov (United States)

    Ajmani, Kumud; Mongia, Hukam; Lee, Phil

    2017-01-01

    An effort was undertaken to perform CFD analysis of fluid flow in Lean-Direct Injection (LDI) combustors with axial swirl-venturi elements for next-generation LDI-3 combustor design. The National Combustion Code (NCC) was used to perform non-reacting and two-phase reacting flow computations for a nineteen-element injector array arranged in a three-module, 7-5-7 element configuration. All computations were performed with a consistent approach of mesh-optimization, spray-modeling, ignition and kinetics-modeling with the NCC. Computational predictions of the aerodynamics of the injector were used to arrive at an optimal injector design that meets effective area and fuel-air mixing criteria. LDI-3 emissions (EINOx, EICO and UHC) were compared with the previous generation LDI-2 combustor experimental data at representative engine cycle conditions.

  14. New Material System for 3rd Generation IR Applications

    Science.gov (United States)

    2010-12-01

    misfit dislocations need to be generated somewhere in the thin film stack to alleviate this energy which ultimately propagates into the IR-absorbing...Laboratory ARO U.S. Army Research Office As arsenic Cd cadmium CdSe cadmium selenide CdTe cadmium telluride CdZnTe cadmium zinc telluride CHM...Laboratory (ARL) has begun investigating mercury cadmium selenide (HgCdSe) for infrared (IR) applications. Analogous to HgCdTe, HgCdSe is a tunable

  15. RF Sources for 3rd & 4th Generation Light Sources

    CERN Document Server

    Lenci, Stephan; Bohlen, Heinz Peter; Mizuhara, Albert; Wright, Edward L

    2004-01-01

    The growing number of third and fourth generation light sources has resulted in an increase of the available rf sources to power them. Single beam klystrons are the traditional power source, but the development of IOT’s and multiple-beam klystrons (MBK’s) in L-Band have increased the options for these machines. The Eimac division of CPI has recently built and tested a prototype L-Band IOT, which delivered 30 kW CW at 1.3 GHz. Future work includes the building of an IOT at 1.5 GHz. Meanwhile the MPP division of CPI is currently testing the prototype 10 MW peak, 1.3 GHz MBK for the TESLA x-ray free-electron laser (XFEL). Test results for these new products as well as information on all CPI products at 500 MHz, 1.3 GHz, and 1.5 GHz will be presented.

  16. Microstructure Modeling of 3rd Generation Disk Alloy

    Science.gov (United States)

    Jou, Herng-Jeng

    2008-01-01

    The objective of this initiative, funded by NASA's Aviation Safety Program, is to model, validate, and predict, with high fidelity, the microstructural evolution of third-generation high-refractory Ni-based disc superalloys during heat treating and service conditions. This initiative is a natural extension of the DARPA-AIM (Accelerated Insertion of Materials) initiative with GE/Pratt-Whitney and with other process simulation tools. Strong collaboration with the NASA Glenn Research Center (GRC) is a key component of this initiative and the focus of this program is on industrially relevant disk alloys and heat treatment processes identified by GRC. Employing QuesTek s Computational Materials Dynamics technology and PrecipiCalc precipitation simulator, physics-based models are being used to achieve high predictive accuracy and precision. Combining these models with experimental data and probabilistic analysis, "virtual alloy design" can be performed. The predicted microstructures can be optimized to promote desirable features and concurrently eliminate nondesirable phases that can limit the reliability and durability of the alloys. The well-calibrated and well-integrated software tools that are being applied under the proposed program will help gas turbine disk alloy manufacturers, processing facilities, and NASA, to efficiently and effectively improve the performance of current and future disk materials.

  17. Key Success Factors of 3rd Generation Mobile Network Services for M-Commerce in Malaysia

    Directory of Open Access Journals (Sweden)

    Saravanan Muthaiyah

    2004-01-01

    Full Text Available While there has been a great deal of excitement in view of M-commerce, very little is actually known about conditions and critical success factors for successful introduction of the 3rd generation mobile network services here in Malaysia. This study investigates the factors for successful diffusion of 3G network services and their role in advancing an interactive marketplace. 3G which simply means 3rd generation mobile communications technology has been widely discussed by many telecommunications service providers. It was launched by the International Telecommunication Union (ITU some 13 years ago. 3G is viewed as an enabler of M-Commerce here in Malaysia. However, true success of this technology depends on various factors. The objective of this study is to investigate significant key enablers of 3G deployment and adoption in Malaysia. An insight into the critical factors to be considered for the deployment of 3G technology in Malaysia and experiences of other countries will be used as a benchmark to understand the mitigating factors of 3G deployment. Critical factors such as cost to of service, interoperability of standards, insufficiency of mobile services or content and deficiency of the laws will be discussed in this study. The study also discusses diffusion barriers and drivers for the rapid service diffusion of 3G mobile networks.

  18. The Perception of Entrepreneurial and 3rd Generation University in Turkey

    Directory of Open Access Journals (Sweden)

    Deniz Zungun

    2016-07-01

    Full Text Available Increased competition caused by globalization has led to philosophical changes in private and public businesses. This situation has affected educational institutions and they have needed dynamic, innovator and transformational tools in order to survive in competitive environment. The universities defined as �3rd Generation Universities� need commercialization, network among universities, close co-operation among institutions and entrepreneurship as well as intellectual and innovative changes. In this regard, the aim of the research is formed by the analysis of �Entrepreneur University� concept from the perspective of the academicians that served at managerial positions at the universities in Turkey. The research is limited to the opinions of the academicians that served at top, middle and lower management at randomly chosen 20 universities.

  19. Peter Landin: a computer scientist who inspired a generation, 5th June 1930 - 3rd June 2009

    OpenAIRE

    2009-01-01

    Peter Landin: a computer scientist who inspired a generation, 5th June 1930 - 3rd June 2009 (Bornat, Richard) School of Engineering and Information Sciences, Middlesex University - The Burroughs, NW4 4BT - London - UNITED KINGDOM (Bornat, Richard) UNITED KINGDOM Registration: 2009-07-24 ePublished: 2009-08-13

  20. The Lived Experiences of 3rd Generation and beyond U.S.-Born Mexican Heritage College Students: A Qualitative Study

    Science.gov (United States)

    Galvan, Richard

    2011-01-01

    The purpose of this study was to describe the psychosocial and identity challenges of 3rd generation and beyond U.S.-born (3GAB-USB) Mexican heritage college students. Alvarez (1973) has written about the psychosocial impact "hybridity" can have on a U.S.- born (USB) Mexican individual who incorporates two distinct cultures (American and Mexican)…

  1. Simulations of Various Driving Mechanisms for the 3rd Order Resonant Extraction from the MedAustron Medical Synchrotron

    CERN Document Server

    Feldbauer, G; Dorda, U

    2011-01-01

    The MedAustron medical synchrotron is based on the CERN-PIMMS design and its technical implementation by CNAO [1]. This document elaborates on studies performed on the baseline betatron-core driven extraction method and investigates the feasibility of alternative resonance driving mechanisms like RF-knockout, RF-noise and the lattice tune. Single particle tracking results are presented, explained and compared to analytical results.

  2. A 3rd Generation Advanced High-Strength Steel (AHSS) Produced by Dual Stabilization Heat Treatment (DSHT)

    Science.gov (United States)

    Qu, Hao; Michal, Gary M.; Heuer, Arthur H.

    2013-10-01

    A 3rd generation advanced high-strength steel containing, in wt pct, 0.3 C, 4.0 Mn, 1.5 Al, 2.1 Si, and 0.5 Cr has been produced using a dual stabilization heat treatment—a five stage thermal processing schedule compatible with continuous galvanized steel production. In excess of 30 vol pct retained austenite containing at least 0.80 wt pct C was achieved with this alloy, which had tensile strengths up to 1650 MPa and tensile elongations around 20 pct.

  3. Comparable Research of Energy and Ecology Parameters of 1st, 2nd and 3rd Generation Biofuels for Compression Ignition Engines

    National Research Council Canada - National Science Library

    Justas Zaglinskis

    2015-01-01

    .... Main attention focused on energy and environmental characteristics of diesel engine performance using 1st, 2nd and 3rd generation alcohol, fatty acid methyl and butyl esters blends with conventional diesel fuel (EN 590...

  4. Poly(2-oxazoline) based micelles with high capacity for 3rd generation taxoids: preparation, in vitro and in vivo evaluation.

    Science.gov (United States)

    He, Zhijian; Schulz, Anita; Wan, Xiaomeng; Seitz, Joshua; Bludau, Herdis; Alakhova, Daria Y; Darr, David B; Perou, Charles M; Jordan, Rainer; Ojima, Iwao; Kabanov, Alexander V; Luxenhofer, Robert

    2015-06-28

    The clinically and commercially successful taxanes, paclitaxel and docetaxel suffer from two major drawbacks, namely their very low aqueous solubility and the risk of developing resistance. Here, we present a method that overcomes both drawbacks in a very simple manner. We formulated 3rd generation taxoids, able to avoid common drug resistance mechanisms with doubly amphiphilic poly(2-oxazoline)s (POx), a safe and highly efficient polymer for the formulation of extremely hydrophobic drugs. We found excellent solubilization of different 3rd generation taxoids irrespective of the drug's chemical structures with essentially quantitative drug loading and final drug to polymer ratios around unity. The small, highly loaded micelles with a hydrodynamic diameter of less than 100nm are excellently suited for parenteral administration. Moreover, a selected formulation with the taxoid SB-T-1214 is about one to two orders of magnitude more active in vitro than paclitaxel in the multidrug resistant breast cancer cell line LCC6-MDR. In contrast, in wild-type LCC6, no difference was observed. Using a q4d×4 dosing regimen, we also found that POx/SB-T-1214 significantly inhibits the growth of LCC6-MDR orthotropic tumors, outperforming commercial paclitaxel drug Taxol and Cremophor EL formulated SB-T-1214. Copyright © 2015 Elsevier B.V. All rights reserved.

  5. Final states with 3rd generation quarks @ 13 TeV (resonant or not)

    CERN Document Server

    Everaerts, Pieter Bruno Bart

    2016-01-01

    A wide variety of new physics models gives rise to final states with third-generation quarks. This note presents new results for some of these models using 13 TeV proton-proton collisions at the CERN LHC. Direct production of third-generation supersymmetric superpartners and vector-like quarks are discussed. Also the searches looking for resonances with third-generation quarks are covered. None of the searches discussed here shows an indication of new physics and the new exclusion limits are presented.

  6. Preparation and Optimization of a Membrane for 3rd Generation Solvent Membrane Contactor

    OpenAIRE

    Arif, Asad

    2016-01-01

    Third generation solvent is a new class of CO2 absorbents with a great potential in terms of reduction of the regeneration energy requirement for post combustion carbon capture, but their use at the industrial scale is limited by their high volatility. Membrane contactor technology is proposed as possible solution, but the membrane layer must be purposely designed in order to act as amine barrier, without negatively affecting the overall CO2 mass transfer resistance. Teflon AF2400 has been re...

  7. Development of 3rd generation AHSS with medium Mn content alloying compositions

    Energy Technology Data Exchange (ETDEWEB)

    Aydin, Huseyin, E-mail: huseyin.aydin@mail.mcgill.ca [McGill University, Department of Mining and Materials Engineering, Montreal, QC (Canada); Essadiqi, Elhachmi [Université Internationale de Rabat, UIR, Aerospace Engineering School, Rabat, Technopolis Shore Bypass Rabat-Salé (Morocco); Jung, In-Ho; Yue, Stephen [McGill University, Department of Mining and Materials Engineering, Montreal, QC (Canada)

    2013-03-01

    In this paper, four different steel compositions, centered on Mn as the main alloying element, are designated as candidates for Third Generation AHSS grades. The design of these steels is based on controlling the deformation behavior of the retained austenite. Thus, heat treatment process parameters are determined in order to obtain different amounts and morphologies of retained austenite. The evolution of the microstructure, during processing as well as deformation, is characterized by using optical, electron microscopy techniques and mechanical tests. The effect of alloy composition and processing parameters on the deformation mechanisms of these steels is discussed.

  8. From Bottom to Top: Identification to Precision Measurement of 3rd-Generation Quarks with the ATLAS Detector

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00335926

    The 3rd-generation quarks, bottom ($b$) and top ($t$), are recent additions to the Standard Model of particle physics, and precise characterization of their properties have important implications to searching for new physics phenomena. This thesis presents two analyses which use 4.6 fb$^{-1}$ of $pp$ collision data at $\\sqrt{s} = 7$ TeV collected by the ATLAS detector at the Large Hadron Collider (LHC) to measure their properties. The first is an analysis which measures our ability to identify jets originating from $b$ quarks with machine-learning algorithms applied to simulated and real data, so the result in simulation can be corrected to match that in data. This measurement has implications for our ability to identify processes with b quarks in their final state; $t$ quarks decay to a $b$ quark and a weak vector boson $W$ more than 99% of the time. The second analysis presented measures properties of the $t \\rightarrow Wb$ decay channel associated with phenomena not predicted by the Standard Model, through...

  9. Influence of radiofrequency-electromagnetic waves from 3rd-generation cellular phones on fertilization and embryo development in mice.

    Science.gov (United States)

    Suzuki, Satoshi; Okutsu, Miho; Suganuma, Ryota; Komiya, Hiromi; Nakatani-Enomoto, Setsu; Kobayashi, Shunsuke; Ugawa, Yoshikazu; Tateno, Hiroyuki; Fujimori, Keiya

    2017-09-01

    The purpose of this study was to evaluate the effects of 3rd-generation (3G) cellular phone radiofrequency-electromagnetic wave (RF-EMW) exposure on fertilization and embryogenesis in mice. Oocytes and spermatozoa were exposed to 3G cellular phone RF-EMWs, 1.95 GHz wideband code division multiple access, at a specific absorption rate of 2 mW/g for 60 min, or to sham exposure. After RF-EMW exposure, in vitro fertilization and intracytoplasmic sperm injection were performed. Rates of fertilization, embryogenesis (8-cell embryo, blastocyst), and chromosome aberration were compared between the combined spermatozoa and oocyte groups: both exposed, both non-exposed, one exposed, and the other non-exposed. Rates of fertilization, embryogenesis, and blastocyst formation did not change significantly across the four groups. Considering that the degree of exposure in the present study was ≥100 times greater than daily exposure of human spermatozoa and even greater than daily exposure of oocytes, the present results indicate safety of RF-EMW exposure in humans. Bioelectromagnetics. 38:466-473, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  10. High variability among Emergency Departments in 3rd-generation cephalosporins and fluoroquinolones use for community-acquired pneumonia.

    Science.gov (United States)

    Batard, Eric; Lecadet, Nathalie; Goffinet, Nicolas; Hardouin, Jean-Benoit; Lepelletier, Didier; Potel, Gilles; Montassier, Emmanuel

    2015-12-01

    Fluoroquinolones and 3rd-generation cephalosporins that are prescribed for pneumonia may be avoided and replaced by a penicillin in some cases. We aimed to determine if the proportion of patients treated for pneumonia with a cephalosporin, a fluoroquinolone or both varies among Emergency Departments (EDs), and to estimate the proportion of avoidable prescriptions. This was a retrospective study of patients treated for pneumonia in eight French EDs, and subsequently hospitalized in non-ICU wards. Third-generation cephalosporins or respiratory fluoroquinolones were presumed unavoidable if they met both criteria: (1) age ≥65 years or comorbid condition; and (2) allergy or intolerance to penicillin, or failure of penicillin, or previous treatment with penicillin, or for fluoroquinolones only, suspected legionellosis. We included 832 patients. Thirty-four percent (95 % CI, 31-38 %) of patients were treated with a cephalosporin, a respiratory fluoroquinolone or both (range among EDs 19-44 %). Four EDs were independent risk factors for prescription of a cephalosporin, a fluoroquinolone or both [adjusted OR, 2.27 (1.64-3.15)], as were immune compromise [aOR 2.54 (1.56-4.14)], antibacterial therapy started before arrival in the ED [aOR 3.32 (2.30-4.81)], REA-ICU class III or IV [aOR 1.93 (1.15-3.23)], PSI class V [aOR 1.49 (1.00-2.20)], fluid resuscitation [aOR 3.98 (2.49-6.43)] and non-invasive ventilation in the ED [aOR, 7.18 (1.7-50.1)]. Treatment with a cephalosporin, a fluoroquinolone or both was avoidable in 67 % (62-73 %) of patients. Cephalosporins and fluoroquinolones use in pneumonia is highly variable among EDs. The majority of these prescriptions are avoidable. Antibiotic stewardship programs should be implemented to restrict their use in EDs.

  11. Differences between 2nd and 3rd generation seric parathormone determination methods on mortality in haemodialysis patients.

    Science.gov (United States)

    Rodríguez-Osorio, Laura; de la Piedra, Concepción; Rubert, Mercedes; Martín-Fernández, Marta; González Casaus, María Luisa; Gracia-Iguacel, Carolina; Egido, Jesús; Villa-Bellosta, Ricardo; González Parra, Emilio

    Parathormone plays a key role in controlling mineral metabolism. PTH is considered a uremic toxin causing cardiovascular damage and cardiovascular mortality in dialysis patients. There are two different assays to measure PTH called 2nd generation or intact PTH (iPTH) and 3rd generation or bioPTH (PTHbio). To evaluate the differences in mortality of dialysis patients between both assays to measure PTH, as well as the possible prognostic role of the PTHbio/iPTH ratio. 145 haemodialysis patients were included with 2-year monitoring including baseline laboratory test and annually thereafter. 21 patients died in the first year and 28 in the second. No correlation was found between PTH, PTHbio and PTHbio/iPTH ratio with mortality. Both PTH have a perfect correlation between them and correlate similarly with other molecules of the mineral metabolism. The extreme baseline values of PTH are those of higher mortality. In survival by iPTH intervals (according to guidelines and COSMOS study), a J curve is observed. When iPTH increases, the ratio decreases, possibly when increasing fragments no. 1-84. There is no greater prognostic approximation on mortality with PTHbio than PTHi. There was also no difference in mortality when progression ratio PTHbio/PTHi was analysed. We didn't find any advantages to using bioPTH vs. PTHi as a marker of mortality. BioPTH limits of normality must be reevaluated because its relationship with iPTH is not consistent. Not knowing these limits affects its prognostic value. Copyright © 2017 Sociedad Española de Nefrología. Published by Elsevier España, S.L.U. All rights reserved.

  12. Panel backs next-generation synchrotron

    CERN Multimedia

    Service, R F

    1999-01-01

    A key federal panel recommended continued research into development of a fourth-generation synchrotron. It would be capable of creating x-ray pulses billions of times more intense than current designs (1 page).

  13. Highly efficient source for frequency-entangled photon pairs generated in a 3rd order periodically poled MgO-doped stoichiometric LiTaO3 crystal

    CERN Document Server

    Kim, Heonoh; Lee, Sang Min; Moon, Han Seb

    2015-01-01

    We present a highly efficient source for discrete frequency-entangled photon pairs based on spontaneous parametric down-conversion using 3rd order type-0 quasi-phase matching in a periodically poled MgO-doped stoichiometric LiTaO3 crystal pumped by a 355.66 nm laser. Correlated two-photon states were generated with automatic conservation of energy and momentum in two given spatial modes. These states have a wide spectral range, even under small variations in crystal temperature, which consequently results in higher discreteness. Frequency entanglement was confirmed by measuring two-photon quantum interference fringes without any spectral filtering.

  14. Efficacy of a 3rd generation high-throughput sequencing platform for analyses of 16S rRNA genes from environmental samples.

    Science.gov (United States)

    Mosher, Jennifer J; Bernberg, Erin L; Shevchenko, Olga; Kan, Jinjun; Kaplan, Louis A

    2013-11-01

    Longer sequences of the bacterial 16S rRNA gene could provide greater phylogenetic and taxonomic resolutions and advance knowledge of population dynamics within complex natural communities. We assessed the accuracy of a Pacific Biosciences (PacBio) single molecule, real time (SMRT) sequencing based on DNA polymerization, a promising 3rd generation high-throughput technique, and compared this to the 2nd generation Roche 454 pyrosequencing platform. Amplicons of the 16S rRNA gene from a known isolate, Shewanella oneidensis MR1, and environmental samples from two streambed habitats, rocks and sediments, and a riparian zone soil, were analyzed. On the PacBio we analyzed ~500 bp amplicons that covered the V1-V3 regions and the full 1500 bp amplicons of the V1-V9 regions. On the Roche 454 we analyzed the ~500 bp amplicons. Error rates associated with the isolate were lowest with the Roche 454 method (2%), increased by more than 2-fold for the 500 bp amplicons with the PacBio SMRT chip (4-5%), and by more than 8-fold for the full gene with the PacBio SMRT chip (17-18%). Higher error rates with the PacBio SMRT chip artificially inflated estimates of richness and lowered estimates of coverage for environmental samples. The 3rd generation sequencing technology we evaluated does not provide greater phylogenetic and taxonomic resolutions for studies of microbial ecology. © 2013.

  15. Linac-augmented light sources an incremental concept for enhancing the capabilities of existing 3rd-generation storage rings.

    CERN Document Server

    Lewellen, J W

    2003-01-01

    Planned and proposed 4th-generation x-ray sources, such as energy-recovery linacs (ERLs) and single-pass x-ray free-electron lasers (X-FELs) offer a number of potential advantages, including small source size, higher peak brightness, ultrashort pulses, and potentially temporally and transversely coherent pulses. While offering unique capabilities, such facilities will also offer several important limitations, including limited numbers of user beamlines (for FELs) and a pulse-repetition rate that may be too high for many dynamics experiments (ERLs). In addition, there are many technical challenges associated with both types of facilities. A third type of facility, exemplified by the Short Pulse Photon Source (SPPS) at SLAC [1], would support neither a large number of users simultaneously nor generate coherent pulses, but would generate very intense, short x-ray pulses. Such a facility could serve as the starting point for either an ERL or an X-FEL, or a combined, hybrid machine. For the foreseeable future, how...

  16. Book of abstracts: 3rd International Conference on Smart Energy Systems and 4th Generation District Heating

    DEFF Research Database (Denmark)

    Lund, Henrik; Mathiesen, Brian Vad

    of the European 2020 goals as well as future sustainable energy solutions in general. The Smart Energy System approach was defined in 2011 in the CEESA project. The project addressed Danish scenarios with a particular focus on renewable energy in the transport system in a context with limited access to bioenergy....... The Smart Energy System concept is essential for 100% renewable energy systems to harvest storage synergies and exploit low-value heat sources. The most effective and least-cost solutions are to be found when the electricity sector is combined with the heating and cooling sectors and/or the transport sector....... Moreover, the combination of electricity and gas infrastructures may play an important role in the design of future renewable energy systems. In its research on low-temperature district heating, the Strategic Research Centre for 4th Generation District Heating Technologies and Systems enhances...

  17. Passive magnetic bearing in the 3rd generation miniature axial flow pump-the valvo pump 2.

    Science.gov (United States)

    Okamoto, Eiji; Ishida, Yuya; Yano, Tetsuya; Mitamura, Yoshinori

    2015-06-01

    The new miniature axial flow pump (valvo pump 2) that is installed at the base of the ascending aorta consists of a six-phase stator, an impeller in which four neodymium magnets are incorporated, and passive magnetic bearings that suspend the impeller for axial levitation. The impeller is sustained by hydrodynamic force between the blade tip of the impeller and the inner housing of the stator. The passive magnetic bearing consists of a ring neodymium magnet and a columnar neodymium magnet. The ring neodymium magnet is set in the stationary side and the columnar neodymium magnet is incorporated in the impeller shaft. Both neodymium magnets are coaxially mounted, and the anterior and posterior passive magnetic bearings suspend the impeller by repulsion force against the hydrodynamic force that acts to move the impeller in the inflow port direction. The passive magnetic bearing was evaluated by a tensile test, and the levitation force of 8.5 N and stiffness of 2.45 N/mm was obtained. Performance of the axial flow pump was evaluated by an in vitro experiment. The passive magnetic bearing showed sufficient levitation capacity to suspend the impeller in an axial direction. In conclusion, the passive magnetic bearing is promising to be one of levitation technology for the third-generation axial flow blood pump.

  18. 3rd and 4th Generation ECRIS:Some Possible Scenarios%第三代和第四代ECR离子源:未来展望

    Institute of Scientific and Technical Information of China (English)

    S.Gammino

    2007-01-01

    Since the end of '70s the Electron Cyclotron Resonance ion sources(ECRIS)allowed to increase both the energy and intensity of the beams available from different types of accelerators;perspectives for the ruture are still optimistic.It is commonly agreed that only some ECRIS parameters have been fully exploited,whether some others are still not efficiently used,or not understood.The developments in the last 20 years have followed the so called Standard Model and the availability of higher frequency generators and higher field magnets have permitted relevant increase;the use of Nb3Sn may extend the range.The availability of new schemes of microwave coupling to plasma is promising,and the focusing of the electromagnetic wave towards the chamber axis may improve the density of warm electron population.The paper will also describe some critical point of the 3rd generation ECRIS(including technological troubles and limits)and the scenario for future 4th generation ECRIS,operating at f=56-75GHz,to be built in 2010s.

  19. Berkeley Lab's ALS generates femtosecond synchrotron radiation

    CERN Document Server

    Robinson, A L

    2000-01-01

    A team at Berkeley's Advanced Light Source has shown how a laser time-slicing technique provides a path to experiments with ultrafast time resolution. A Lawrence Berkeley National Laboratory team has succeeded in generating 300 fs pulses of synchrotron radiation at the ALS synchrotron radiation machine. The team's members come from the Materials Sciences Division (MSD), the Center for Beam Physics in the Accelerator and Fusion Research Division and the Advanced Light Source (ALS). Although this proof-of principle experiment made use of visible light on a borrowed beamline, the laser "time-slicing" technique at the heart of the demonstration will soon be applied in a new bend magnet beamline that was designed specially for the production of femtosecond pulses of X-rays to study long-range and local order in condensed matter with ultrafast time resolution. An undulator beamline based on the same technique has been proposed that will dramatically increase the flux and brightness. The use of X-rays to study the c...

  20. STUDY OF THYROID PROFILE BY USING ULTRA SENSITIVE 3 rd GENERATION THYROID ASSAY IN TYPE 2 DIABETES MELLITUS PATIENTS IN A TERTIARY CARE CENTER

    Directory of Open Access Journals (Sweden)

    Rahul Ladda

    2017-01-01

    Full Text Available BACKGROUND Diabetes mellitus is a common endocrine disorder which is defined as a group of metabolic diseases characterized by hyperglycaemia resulting from defects in insulin secretion, insulin action, or both. Recently few studies have shown that Thyroid dysfunction especially hypothyroidism is found in patients with Type 2 Diabetes Mellitus but the mechanism for this is largely unknown. Unrecognized thyroid dysfunction can impair metabolic control in diabetes and may even exaggerate cardiovascular risk. Prompt detection and treatment may reduce risk derangement of cellular metabolism in diabetes mellitus and help achieving metabolic control in diabetes. AIMS AND OBJECTIVES OF THE STUDY To find the prevalence rate of thyroid disorders in type 2 diabetes mellitus by using 3 rd generation thyroid assay and distribution of thyroid disorders in patients with Type 2 diabetes mellitus MATERIALS AND METHODS 150 patients diagnosed with type 2 diabetes mellitus or newly detected Type 2 diabetes mellitus without thyroid disorders attending outpatient departments and admitted to General medicine wards of Basaveshwar teaching and general hospital were included in this study. RESULTS Of the 150 patients with Diabetes 88 patients (58.66% were male and 62 patients (41.33% were male. The mean age in diabetic group 56.48±11.64 years. 84 patients (54% in Diabetic group had hypertension and 25 patients (16.7% diabetic group had coronary artery disease 43 patients (28.66% had abnormal thyroid profile in diabetic group of which 23 patients (53.5% had subclinical hypothyroidism and 16 patients (37.3 % had overt hypothyroidism 2 (4.6 % patients had subclinical hyperthyroidism and 2 (4.6% had overt hyperthyroidism. CONCLUSION The prevalence (28.8% of thyroid dysfunction was common in type 2 diabetes mellitus patients. Our study shows significant co relation between abnormal thyroid profile and glycaemic control, dyslipidaemia and duration of diabetes.

  1. A novel amperometric alcohol biosensor developed in a 3rd generation bioelectrode platform using peroxidase coupled ferrocene activated alcohol oxidase as biorecognition system.

    Science.gov (United States)

    Chinnadayyala, Somasekhar R; Kakoti, Ankana; Santhosh, Mallesh; Goswami, Pranab

    2014-05-15

    Alcohol oxidase (AOx) with a two-fold increase in efficiency (Kcat/Km) was achieved by physical entrapment of the activator ferrocene in the protein matrix through a simple microwave based partial unfolding technique and was used to develop a 3rd generation biosensor for improved detection of alcohol in liquid samples. The ferrocene molecules were stably entrapped in the AOx protein matrix in a molar ratio of ~3:1 through electrostatic interaction with the Trp residues involved in the functional activity of the enzyme as demonstrated by advanced analytical techniques. The sensor was fabricated by immobilizing ferrocene entrapped alcohol oxidase (FcAOx) and sol-gel chitosan film coated horseradish peroxidase (HRP) on a multi-walled carbon nanotube (MWCNT) modified glassy carbon electrode through layer-by-layer technique. The bioelectrode reactions involved the formation of H2O2 by FcAOx biocatalysis of substrate alcohol followed by HRP-catalyzed reduction of the liberated H2O2 through MWCNT supported direct electron transfer mechanism. The amperometric biosensor exhibited a linear response to alcohol in the range of 5.0 × 10(-6) to 30 × 10(-4)mol L(-1) with a detection limit of 2.3 × 10(-6) mol L(-1), and a sensitivity of 150 µA mM(-1) cm(-2). The biosensor response was steady for 28 successive measurements completed in a period of 5h and retained ~90% of the original response even after four weeks when stored at 4 °C. The biosensor was successfully applied for the determination of alcohol in commercial samples and its performance was validated by comparing with the data obtained by GC analyses of the samples.

  2. 3rd Dynamics Days

    CERN Document Server

    Clerc, Marcel

    2016-01-01

    This book presents recent advances, new ideas and novel techniques related to the field of nonlinear dynamics, including localized pattern formation, self-organization and chaos. Various natural systems ranging from nonlinear optics to mechanics, fluids and magnetic are considered. The aim of this book is to gather specialists from these various fields of research to promote cross-fertilization and transfer of knowledge between these active research areas. In particular, nonlinear optics and laser physics constitute an important part in this issue due to the potential applications for all-optical control of light, optical storage, and information processing. Other possible applications include the generation of ultra-short pulses using all-fiber cavities.

  3. The 3rd Generation Telecommunication and the Industrial Economic Development%浅析3G与产业经济发展

    Institute of Scientific and Technical Information of China (English)

    佘炳涛

    2012-01-01

    With the maturity of 3G (The 3rd Generation Telecommunication) in network, business, and terminal gradually, the Chinese services of 3G have unprecedented opportunities for development relying on huge mobile communications market of 2G The existing problems are backward ideas, the insufficient source of the terminal and intelligent terminal, and the incomplete leading operation to terminal industry chain in business of 3G. In order to develop 3G industry, the business should seize the rare opportunities for in- dustry policy, complete the value analysis of industrial chain, adjust and innovate marketing mode and method, improve the core value of accessing portal service providers and content providers, and target 3G business as the market which will be the future development direction of telecommunication service.%随着3G网络、业务、终端的逐渐成熟,依托于目前巨大2G移动通信市场的我国3G通信服务迎来前所未有的发展机遇。当前的问题是3G业务在运营中仍存在的观念落后、终端和智能终端的来源不足,对终端产业链的主导营运不到位等问题。发展3G产业,应抓住难得的产业政策机遇,做好产业链各环节的价值分析,调整并创新销售模式与方法,提升门户接入服务提供商和内容提供商的核心价值,并以此锁定3G业务的目标市场,这将是未来电信服务的发展方向。

  4. The incidence and nature of injuries sustained on grass and 3rd generation artificial turf: a pilot study in elite Saudi National Team footballers.

    Science.gov (United States)

    Almutawa, M; Scott, M; George, K P; Drust, B

    2014-02-01

    To compare the incidence, severity and nature of injuries sustained by Saudi National Team footballers during match-play and training on natural grass and 3rd generation (3G) artificial turf. Injury data was collected on all Saudi National Team players competing at the Gulf Cup (Yemen December 2010: 3G) and the Asian Cup (Qatar January 2011; grass). A total of 49 players were studied (mean ± SD; Age 27 ± 4 yr; body mass 71.4 ± 6.7 kg; height 176.8 ± 6.3 cm; professional playing experience 9 ± 3 yr) of which 31 competed at the Gulf Cup, 32 at the Asian Cup (14 at both). A prospective cohort design was used to investigate the incidence, nature and severity of injuries sustained with data collected using a standardised injury questionnaire. All data were collected by the team physiotherapist with the definition of injury set at any injury that required player and clinician contact. Injury and exposure data were collected and reported for games, training and all football activity. A total of 82 injuries [incidence - 56.1 per 1000 h total game and training exposure] were recorded at the Asian Cup (grass) and 72 injuries [incidence - 37.9 per 1000 h total game and training exposure] were recorded at the Gulf Cup (3G). Incidence data for training, game and all football exposure injury rates were higher when playing on grass. The vast majority of injuries on both surfaces were very minor that, whilst requiring medical attention, did not result in loss of match/training exposure. Injuries that resulted in 1-3 days absence from training or game play had similar incidence rates (Grass: 7.4 vs. 3G: 7.4 injuries per 1000 h exposure). More severe injuries were less frequent but with a higher incidence when playing on grass. Lower limb injuries were the most common in both tournaments with a higher incidence on grass (Grass: 14.2 vs. 3G: 7.9 injuries per 1000 h exposure). Muscle injuries were the most frequent of all injuries with similar incidence rates on

  5. CIFLog: the 3rd generation logging software based on Java-NetBeans%基于Java-NetBeans的第三代测井软件CIFLog

    Institute of Scientific and Technical Information of China (English)

    李宁; 王才志; 刘英明; 李伟忠; 夏守姬; 原野

    2013-01-01

    To follow direction of well-logging technology development, get rid of dependence on foreign well-logging software, improve capability of independent innovation, and enchance core competitiveness, CIFLog, the 3rd generation well-logging software which has independent intellectual property rights, has been successfully developed by PetroChina supported by the major national oil and gas project. Based on advanced Java-NetBeans programming technology, CIFLog adopts three-layer structure, and it can run under three major operating systems, i. e. Windows, Linux and Unix. Combine with well-logging evaluation of open-holes and cased holes, CIFLog offers the interpretation methods of complex reservoir including volcanic, carbonate, low-resistivity clastic rocks and flooded zones, and it is the first well-logging software that can be successfully applied to processing and interpretation of all domestically produced high-end imaging logging equipment in China. The successful development of the software not only breaks technical barriers of foreign software, and also fill gaps in relevant fields, meanwhile, it greatly enhances well logging technology and research and development of large-scale software in China.%为了紧跟测井技术的发展方向,摆脱对国外测井软件的依赖,提高自主创新能力,开发具有自主知识产权的测井处理解释软件,提升核心竞争力,中国石油天然气集团公司依托国家油气重大专项,成功研发了第三代测井软件CIFLog.CIFLog基于先进的Java-NetBeans编程技术,采用数据层、支持层和应用层3层框架结构,可以同时运行在Windows、Linux和Unix操作系统下.CI-FLog还将全系列裸眼测井评价与套后测井评价集成为一体,提供了火山岩、碳酸盐岩、低阻碎屑岩和水淹层等复杂储层的处理解释方法,并在国内首家对全部国产高端成像测井装备处理解释提供支持.该软件的成功研发不仅打破了国外软件技术封锁的

  6. Effects of Deep Water Source-Sink Terms in 3rd generation Wave Model SWAN using different wind data in Black Sea

    Science.gov (United States)

    Kirezci, Cagil; Ozyurt Tarakcioglu, Gulizar

    2016-04-01

    Coastal development in Black Sea has increased in recent years. Therefore, careful monitoring of the storms and verification of numerical tools with reliable data has become important. Previous studies by Kirezci and Ozyurt (2015) investigated extreme events in Black Sea using different wind datasets (NCEP's CFSR and ECMWF's operational datasets) and different numerical tools (SWAN and Wavewatch III). These studies showed that significant effect to results is caused by the deep water source-sink terms (wave growth by wind, deep water dissipation of wave energy (whitecapping) and deep water non-linear wave-wave interactions). According to Timmermans(2015), uncertainty about wind forcing and the process of nonlinear wave-wave interactions are found to be dominant in numerical wave modelling. Therefore, in this study deep water source and sink term solution approaches of 3rd generation numerical tool (SWAN model) are tested, validated and compared using the selected extreme storms in Black Sea. 45 different storms and storm like events observed in Black Sea between years 1994-1999 are selected to use in the models. The storm selection depends on the instrumental wave data (significant wave heights, mean wave period and mean wave direction) obtained in NATO-TU Waves project by the deep water buoy measurements at Hopa, Sinop, Gelendzhik, and wind data (mean and peak wind speeds, storm durations) of the regarding events. 2 different wave growth by wind with the corresponding deep water dissipation terms and 3 different wave -wave interaction terms of SWAN model are used in this study. Wave growth by wind consist of two parts, linear growth which is explained by Cavaleri and Malanotte-Rizzoli(1981),and dominant exponential growth. There are two methods in SWAN model for exponential growth of wave, first one by Snyder et al. (1981), rescaled in terms of friction velocity by Komen et. al (1984) which is derived using driving wind speed at 10m elevation with related drag

  7. SESAME -- A third generation synchrotron light source for the Middle East

    Science.gov (United States)

    Winick, Herman

    2012-03-01

    Developed under the auspices of UNESCO and modeled on CERN, SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is an international research centre in construction in Jordan, enabling world-class research while promoting peace through scientific cooperation. Its centerpiece, a new 2.5 GeV 3rd Generation Electron Storage Ring (133m circumference, 26nm-rad emittance, 12 places for insertion devices), will provide intense light from infra-red to hard X-rays. Members of the Council (Bahrain, Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, Palestinian Authority,Turkey) provide the operations budget. Voluntary contributions by several Council Members that could amount to over 20 million over 5 years are now being finalized. This, plus funds from other sources, will enable acquisition of the technical components of the new ring and the upgrading of beamline equipment donated by several European and US labs. All concrete shielding is complete. The 0.8 GeV BESSY I injector system, a gift from Germany, is now being installed. A training program has been underway since 2000. SESAME is on track to start operation with four day-one beam lines in 2015.

  8. Single- and dual-energy CT of the abdomen: comparison of radiation dose and image quality of 2nd and 3rd generation dual-source CT

    Energy Technology Data Exchange (ETDEWEB)

    Wichmann, Julian L. [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); University Hospital Frankfurt, Department of Diagnostic and Interventional Radiology, Frankfurt (Germany); Hardie, Andrew D.; Felmly, Lloyd M.; Perry, Jonathan D.; Varga-Szemes, Akos; De Cecco, Carlo N. [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); Schoepf, U.J. [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); Medical University of South Carolina, Division of Cardiology, Department of Medicine, Charleston, SC (United States); Mangold, Stefanie [University Hospital of Tuebingen, Department of Diagnostic and Interventional Radiology, Tuebingen (Germany); Caruso, Damiano [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); University of Rome ' ' Sapienza' ' , Department of Radiological Sciences, Oncological and Pathological Sciences, Latina (Italy); Canstein, Christian [Medical University of South Carolina, Department of Radiology and Radiological Science, Charleston, SC (United States); Siemens Medical Solutions USA, Malvern, PA (United States); Vogl, Thomas J. [University Hospital Frankfurt, Department of Diagnostic and Interventional Radiology, Frankfurt (Germany)

    2017-02-15

    To compare single-energy (SECT) and dual-energy (DECT) abdominal CT examinations in matched patient cohorts regarding differences in radiation dose and image quality performed with second- and third-generation dual-source CT (DSCT). We retrospectively analysed 200 patients (100 male, 100 female; mean age 61.2 ± 13.5 years, mean body mass index 27.5 ± 3.8 kg/m{sup 2}) equally divided into four groups matched by gender and body mass index, who had undergone portal venous phase abdominal CT with second-generation (group A, 120-kV-SECT; group B, 80/140-kV-DECT) and third-generation DSCT (group C, 100-kV-SECT; group D, 90/150-kV-DECT). The radiation dose was normalised for 40-cm scan length. Dose-independent figure-of-merit (FOM) contrast-to-noise ratios (CNRs) were calculated for various organs and vessels. Subjective overall image quality and reader confidence were assessed. The effective normalised radiation dose was significantly lower (P < 0.001) in groups C (6.2 ± 2.0 mSv) and D (5.3 ± 1.9 mSv, P = 0.103) compared to groups A (8.8 ± 2.3 mSv) and B (9.7 ± 2.4 mSv, P = 0.102). Dose-independent FOM-CNR peaked for liver, kidney, and portal vein measurements (all P ≤ 0.0285) in group D. Subjective image quality and reader confidence were consistently rated as excellent in all groups (all ≥1.53 out of 5). With both DSCT generations, abdominal DECT can be routinely performed without radiation dose penalty compared to SECT, while third-generation DSCT shows improved dose efficiency. (orig.)

  9. Lecture Notes in Statistics. 3rd Semester

    DEFF Research Database (Denmark)

    The lecture note is prepared to meet the requirements of the curriculum for the 3rd smester course in statistics at the Aarhus School of Business.......The lecture note is prepared to meet the requirements of the curriculum for the 3rd smester course in statistics at the Aarhus School of Business....

  10. Lecture Notes in Statistics. 3rd Semester

    DEFF Research Database (Denmark)

    The lecture note is prepared to meet the requirements of the curriculum for the 3rd smester course in statistics at the Aarhus School of Business.......The lecture note is prepared to meet the requirements of the curriculum for the 3rd smester course in statistics at the Aarhus School of Business....

  11. Real-World Use of 3rd Line Therapy for Multiple Myeloma in Austria: An Austrian Myeloma Registry (AMR Analysis of the Therapeutic Landscape and Clinical Outcomes prior to the Use of Next Generation Myeloma Therapeutics.

    Directory of Open Access Journals (Sweden)

    Ella Willenbacher

    Full Text Available Clinical trials demonstrate improving survival in patients with multiple myeloma (MM after treatment. However, it is unclear whether increased survival translates to a similar benefit in a real world setting.We analyzed the overall survival of 347 multiple myeloma patients in Austria by means of a national registry (AMR, focused on results from 3rd and later lines of therapy. This benchmark was chosen to define a baseline prior to the broad application of upcoming 2nd generation drugs (carfilzomib, pomalidomide.Projected 10 years survival for patients with MM in Austria is estimated to be 56% in patients diagnosed in between the years 2011-2014, 21% in patients with a diagnosis made between 2000-2005, and 39% in those with a diagnosis made between 2006-2010. For the same intervals a significant increase in the use of both bortezomib, lenalidomide and thalidomide-so called IMiDs (from 2005 onwards and their simultaneous use in combination therapies (from 2010 onwards could be shown. The use of autologous transplantation (ASCT remained more or less constant at ~ 35% of patients in the 1st line setting over the whole period, comparing well to international practice patterns, while the use of 2nd line ASCT increased from 5.5% to 18.7% of patients. Patients in 3rd or later line treatment (n = 105, showed that even in relapsed and refractory disease median survival was 27 months with a considerable proportion of long-term survivors (~20%.With the expected emergence of additional active anti-myeloma compounds, we aim to assess survival in patients with relapsed and refractory MM.

  12. The 3rd generation Front-End cards of the Pierre Auger surface detectors: Test results and performance in the field

    Science.gov (United States)

    Szadkowski, Z.; Bäcker, T.; Becker, K.-H.; Buchholz, P.; Fleck, I.; Kampert, K.-H.; Rammes, M.; Rautenberg, J.; Taşcău, O.

    2009-07-01

    The surface detector array of the Pierre Auger Observatory comprises 1600 water Cherenkov detectors distributed over an area of 3000 km2. The Cherenkov light is detected by three 9-in. photo-multiplier tubes from which the signals of the anode and last dynode are digitized by 10 bit 40 MHz FADCs. An Altera Cyclone FPGA is employed to generate different local triggers and to handle the data transfer to a communication board. After briefly discussing the design of the cards we present an autonomous test-bench, which has been set up in order to test the large number of boards prior to installation in the field. The qualification procedure and the results obtained in the laboratory are presented. Up to three years of operation in the field demonstrate a very good performance and reliability of the Front-End cards.

  13. The 3rd generation Front-End cards of the Pierre Auger surface detectors: Test results and performance in the field

    Energy Technology Data Exchange (ETDEWEB)

    Szadkowski, Z. [Bergische Universitaet Wuppertal, Department of Physics, 42097 Wuppertal (Germany); University of Lodz, Department of Physics and Applied Informatics, 90-236 Lodz (Poland)], E-mail: zszadkow@kfd2.phys.uni.lodz.pl; Baecker, T. [Universitaet Siegen, Department of Physics, 57058 Siegen (Germany); Becker, K.-H. [Bergische Universitaet Wuppertal, Department of Physics, 42097 Wuppertal (Germany); Buchholz, P.; Fleck, I. [Universitaet Siegen, Department of Physics, 57058 Siegen (Germany); Kampert, K.-H. [Bergische Universitaet Wuppertal, Department of Physics, 42097 Wuppertal (Germany)], E-mail: kampert@uni-wuppertal.de; Rammes, M. [Universitaet Siegen, Department of Physics, 57058 Siegen (Germany); Rautenberg, J.; Tascau, O. [Bergische Universitaet Wuppertal, Department of Physics, 42097 Wuppertal (Germany)

    2009-07-21

    The surface detector array of the Pierre Auger Observatory comprises 1600 water Cherenkov detectors distributed over an area of 3000km{sup 2}. The Cherenkov light is detected by three 9-in. photo-multiplier tubes from which the signals of the anode and last dynode are digitized by 10 bit 40 MHz FADCs. An Altera Cyclone FPGA is employed to generate different local triggers and to handle the data transfer to a communication board. After briefly discussing the design of the cards we present an autonomous test-bench, which has been set up in order to test the large number of boards prior to installation in the field. The qualification procedure and the results obtained in the laboratory are presented. Up to three years of operation in the field demonstrate a very good performance and reliability of the Front-End cards.

  14. 3rd International EXAFS Conference

    CERN Document Server

    Hedman, Britt; Penner-Hahn, James

    1984-01-01

    This volume contains the Proceedings of the Third International EXAFS Conference, hosted by Stanford University and the Stanford Synchrotron Radiation Laboratory on July 16-20, 1984. The meeting, co-chaired by Professors Arthur Bienenstock and Keith Hodgson, was attended by over 200 scientists representing a wide range of scientific disciplines. The format of the meeting consisted of 51 invited presenta­ tions and four days of poster sessions. This Proceedings is a compilation of 139 contributions from both invited speakers and authors of contributed posters. The last ten years has seen the rapid maturation of x-ray absorption spectrosco­ pyas a scientific discipline. The vitality of the field is reflected in the diver­ sity of applications found in the Proceedings. Recent work continues to probe the limits of x-ray spectroscopy, with proven techniques being extended to, for examp­ le, very low or high energy studies, to very dilute systems, and to studies of surface structure. In fact, the title of the c...

  15. Microstructure and Performance Control Technology of the 3rd Generation Auto Sheet Steels%第3代汽车钢的组织与性能调控技术

    Institute of Scientific and Technical Information of China (English)

    董瀚; 曹文全; 时捷; 王存宇; 王毛球; 翁宇庆

    2011-01-01

    介绍了第3代汽车钢的基础研究与工业试制工作.对国内外高性能汽车钢进行了回顾总结,在以"多相(Multi-phase)、亚稳(Meta-stable)、多尺度(Multi-scale)"(简称M3)为特征的组织调控理论的指导下,提出了高强塑积第3代汽车钢的超细晶基体与亚稳相的组织调控思路,采用了新型中锰合金化和逆转变奥氏体(Austenite Reverted Transformation,ART)退火的技术思路.详细介绍了第3代汽车钢的基础研究进展及工业试制结果,内容包括奥氏体逆转变退火机制,超细铁素体与亚稳奥氏体的双相形成规律,高强塑积汽车钢的力学行为及其强塑化机制,第3代汽车钢的工业试制流程及其服役性能和在汽车上应用技术与前景.本研究结果形成了以高强度和高塑性为特征的高塑积第3代汽车钢的原型钢技术,为汽车轻量化与碰撞安全性能的提高奠定了材料技术基础.%The fundamental research and industry trials of the 3rd generation automobile steels was introduced. Motivitated by the theory of microstructure control characterized by Multi-phase, Meta-stable and Multi-scale(called M3 simply), summary and review of the home and abroad automobile steels were carried out, which led to the idea microstructure controlling characterized by ultrafine grained matrix and metastable austenite phase and the approaches of medium manganese alloying and austenite reverted transformation annealing for the research and development of the 3rd generation automobile steel. The fundamental research and industry trials were introduced in details, which included the mechanism of austenite reverted transformation, microstructure evolution of the ultrafine grained ferrite and austenite dualphase structure, mechanical behaviors and ductility-enhancing mechanism, industry trial process, service performance and application technologies and prospects of the 3rd generation steels. It was concluded that this study forms the

  16. Lecture Notes in Statistics. 3rd Semester

    DEFF Research Database (Denmark)

    The lecture note is prepared to meet the requirements for the 3rd semester course in statistics at the Aarhus School of Business. It focuses on multiple regression models, analysis of variance, and log-linear models.......The lecture note is prepared to meet the requirements for the 3rd semester course in statistics at the Aarhus School of Business. It focuses on multiple regression models, analysis of variance, and log-linear models....

  17. Lecture Notes in Statistics. 3rd Semester

    DEFF Research Database (Denmark)

    The lecture note is prepared to meet the requirements for the 3rd semester course in statistics at the Aarhus School of Business. It focuses on multiple regression models, analysis of variance, and log-linear models.......The lecture note is prepared to meet the requirements for the 3rd semester course in statistics at the Aarhus School of Business. It focuses on multiple regression models, analysis of variance, and log-linear models....

  18. High resolution 3D imaging of synchrotron generated microbeams

    Energy Technology Data Exchange (ETDEWEB)

    Gagliardi, Frank M., E-mail: frank.gagliardi@wbrc.org.au [Alfred Health Radiation Oncology, The Alfred, Melbourne, Victoria 3004, Australia and School of Medical Sciences, RMIT University, Bundoora, Victoria 3083 (Australia); Cornelius, Iwan [Imaging and Medical Beamline, Australian Synchrotron, Clayton, Victoria 3168, Australia and Centre for Medical Radiation Physics, University of Wollongong, Wollongong, New South Wales 2500 (Australia); Blencowe, Anton [Division of Health Sciences, School of Pharmacy and Medical Sciences, The University of South Australia, Adelaide, South Australia 5000, Australia and Division of Information Technology, Engineering and the Environment, Mawson Institute, University of South Australia, Mawson Lakes, South Australia 5095 (Australia); Franich, Rick D. [School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia); Geso, Moshi [School of Medical Sciences, RMIT University, Bundoora, Victoria 3083 (Australia)

    2015-12-15

    Purpose: Microbeam radiation therapy (MRT) techniques are under investigation at synchrotrons worldwide. Favourable outcomes from animal and cell culture studies have proven the efficacy of MRT. The aim of MRT researchers currently is to progress to human clinical trials in the near future. The purpose of this study was to demonstrate the high resolution and 3D imaging of synchrotron generated microbeams in PRESAGE® dosimeters using laser fluorescence confocal microscopy. Methods: Water equivalent PRESAGE® dosimeters were fabricated and irradiated with microbeams on the Imaging and Medical Beamline at the Australian Synchrotron. Microbeam arrays comprised of microbeams 25–50 μm wide with 200 or 400 μm peak-to-peak spacing were delivered as single, cross-fire, multidirectional, and interspersed arrays. Imaging of the dosimeters was performed using a NIKON A1 laser fluorescence confocal microscope. Results: The spatial fractionation of the MRT beams was clearly visible in 2D and up to 9 mm in depth. Individual microbeams were easily resolved with the full width at half maximum of microbeams measured on images with resolutions of as low as 0.09 μm/pixel. Profiles obtained demonstrated the change of the peak-to-valley dose ratio for interspersed MRT microbeam arrays and subtle variations in the sample positioning by the sample stage goniometer were measured. Conclusions: Laser fluorescence confocal microscopy of MRT irradiated PRESAGE® dosimeters has been validated in this study as a high resolution imaging tool for the independent spatial and geometrical verification of MRT beam delivery.

  19. [Tigecycline: CMI 50/90 towards 1766 Gram-negative bacilli (3rd generation cephalosporins resistant enterobacteriaceae), Acinetobacter baumannii and Bacteroides fragilis group, University Hospital - Montpellier, 2008-2011].

    Science.gov (United States)

    Froment Gomis, P; Jean-Pierre, H; Rousseau-Didelot, M-N; Compan, B; Michon, A-L; Godreuil, S

    2013-12-01

    Tigecycline is a new glycylcyclin with a wide spectre including multi-resistant bacteria. Our laboratory tests in routine the in vitro activity of the TGC towards clinically significant isolates of 3rd generation cephalosporins resistant enterobacteriaceae (EC3R), Acinetobacter baumannii and Bacteroides fragilis group (BFG). The objective of this study is to describe the in vitro activity of TGC against these strains isolated between 2008 and 2011 in the university hospital of Montpellier. In this study period, 1070 isolates EC3R including 541 extended spectrum β-lactamase-producers (ESBL) strains, 47 isolates of A. baumannii including 40 multi-resistant isolates and 645 isolates of BFG were tested. Minimum inhibitory concentrations (MIC) were determined using the E-test method. TGC was active against 86.2% of EC3R with a MIC 90 less or equal to 1mg/L (Escherichia coli being the most sensitive species). A. baumannii and BFG were also inhibited at low concentrations of TGC with a MIC 90 less or equal to 2mg/L respectively for 47% and 84.2% of the isolates. Our study confirms the activity of TGC against the EC3R including ESBL-producers strains. The relevance of the therapeutic use of TGC on the BFG isolates with a MIC greater than 2mg/L should be better documented. Often prescribed in therapeutic impasse, the proper use of TGC would require: clarifying the threshold of sensitivity for some species (i.e., A. baumannii, Bacteroides fragilis group); a better understanding of correlation between in vitro and in vivo activity.

  20. Activation of the IGF1R pathway potentially mediates acquired resistance to mutant-selective 3rd-generation EGF receptor tyrosine kinase inhibitors in advanced non-small cell lung cancer

    Science.gov (United States)

    Park, Ji Hyun; Choi, Yun Jung; Kim, Seon Ye; Lee, Jung-Eun; Sung, Ki Jung; Park, Sojung; Kim, Woo Sung; Song, Joon Seon; Choi, Chang-Min; Sung, Young Hoon; Rho, Jin Kyung; Lee, Jae Cheol

    2016-01-01

    Mutant-selective, 3rd-generation EGFR-TKIs were recently developed to control lung cancer cells harboring T790M-mediated resistance. However, the development of resistance to these novel drugs seems inevitable. Thus, we investigated the mechanism of acquired resistance to the mutant-selective EGFR-TKI WZ4002. We established five WZ4002-resistant cells, derived from cells harboring both EGFR and T790M mutations by long-term exposure to increasing doses of WZ4002. Compared with the parental cells, all resistant cells showed 10–100-folds higher resistance to WZ4002, as well as cross-resistance to other mutant-selective inhibitors. Among them, three resistant cells (HCC827/WR, PC-9/WR and H1975/WR) showed dependency on EGFR signaling, but two other cells (PC-9/GR/WR and PC-9/ER/WR) were not. Notably, insulin-like growth factor-1 receptor (IGF1R) was aberrantly activated in PC-9/GR/WR cells in phospho-receptor tyrosine kinase array, consistently accompanied by loss of IGF binding protein-3 (IGFBP3). Down-regulation of IGF1R by shRNA, as well as inhibition of IGF1R activity either by AG-1024 (a small molecule IGF1R inhibitor) or BI 836845 (a monoclonal anti-IGF1/2 blocking antibody), restored the sensitivity to WZ4002 both in vitro and xenograft. Taken together, these results suggest that activation of the IGF1R pathway associated with IGFBP3 loss can induce an acquired resistance to the mutant-selective EGFR-TKI, WZ4002. Therefore, a combined therapy of IGF1R inhibitors and mutant-selective EGFR-TKIs might be a viable treatment strategy for overcoming acquired resistance. PMID:26980747

  1. 华北三代粘虫大发生虫源的形成%The formation of outbreak populations of the 3rd generation of Mythimna separata (Walker) in northern China

    Institute of Scientific and Technical Information of China (English)

    潘蕾; 吴秋琳; 陈晓; 姜玉英; 曾娟; 翟保平

    2014-01-01

    Objectives The structure and formation of outbreak populations of the 3rd generation armyworm remains unknown so identifying the source of this population is essential for effective forecasting and management. [Methods] Synoptical radiosonde data were used to construct wind fields, and NOAA’s HYSPLIT to simulate the migration pathways and destinations of armyworm moths. [Results] Although the 3rd generation armyworm population in northern China were composed of the migrants from the northwestern Provinces (10%), Inner Mongolia (7%) southwestern Provinces (6%), most (75%) were of local origin. Because of the pied piper effect, the contribution from northeastern China to the outbreak population was only 0.2%. [Conclusion] Outbreaks of 3rd generation armyworm in northern China are rare events. The widespread possible source populations and complex environmental factors greatly complicate the effective forecasting and control of such outbreaks. More empirical studies, case studies and theoretical research is needed to improve our understanding of the outbreak mechanisms of armyworm and forecasting and management to the pest.%我国3代粘虫的种群构成还少有研究,华北3代粘虫的虫源问题也不清楚。为此,需厘清3代粘虫发生区的风场动态和迁出种群的去向,为明确各地的虫源关系提供依据。根据国家气象局的高空气象记录,分析高空风场;利用HYSPLIT平台模拟华北粘虫夏季迁出种群的迁飞轨迹和落点分布。在夏季风盛行的背景下,3代粘虫主要来自于与其发生区相邻的偏南地区(约占45%),如鲁东、苏皖鄂、浙北、赣北、湘北等;另一个主要来源是西北区(包括晋陕甘宁,约占10%)和华北北部(内蒙古及以北区域,约占7%);在某些年份,西南地区也会提供约6%的虫源。另外,还有约30%的虫源来自于发生区域内的相邻地方,属于当地前代滞留虫源的近距离

  2. 3rd Semester and Master's Thesis Ideas

    DEFF Research Database (Denmark)

    Clausen, Johan

    The following pages contain a list of project ideas proposed by the scientific staff at the department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalouge may form the basis for long and short candidate projects as well as regular 3rd s...

  3. Towards synchrotron-based nanocharacterization

    Science.gov (United States)

    Bleuet, Pierre; Arnaud, Lucile; Biquard, Xavier; Cloetens, Peter; Doyen, Lise; Gergaud, Patrice; Lamontagne, Patrick; Lavayssière, Maylis; Micha, Jean-Sébastien; Renault, Olivier; Rieutord, François; Susini, Jean; Ulrich, Olivier

    2009-09-01

    The advent of 3rd generation synchrotron sources coupled with high efficiency x-ray focusing optics opened new nanocharacterization possibilities. This paper is an overview of synchrotron-based techniques that may be of interest for nanotechnology researchers. Although not exhaustive, it includes a general background of synchrotron principle and main x-ray interactions before addressing nanoimaging possibilities. Three-dimensional (3D) hard x-ray multimodal tomography is now doable that allows producing 3D morphological, chemical and crystalline images with a sub-100 nm resolution. Although the resolution is still limited with respect to electron imaging, it presents attractive features like depth resolution and non-destructive exam. Besides imaging, diffraction also allows strain determination within microstructures and is illustrated here on 100 nm copper lines. Surface analysis is illustrated through X-ray Photoelectron Emission Microscopy (XPEEM).

  4. 3rd annual biomass energy systems conference

    Energy Technology Data Exchange (ETDEWEB)

    1979-10-01

    The main objectives of the 3rd Annual Biomass Energy Systems Conference were (1) to review the latest research findings in the clean fuels from biomass field, (2) to summarize the present engineering and economic status of Biomass Energy Systems, (3) to encourage interaction and information exchange among people working or interested in the field, and (4) to identify and discuss existing problems relating to ongoing research and explore opportunities for future research. Abstracts for each paper presented were edited separately. (DC)

  5. 3rd MeTrApp Conference

    CERN Document Server

    Lovasz, Erwin-Christian; Hüsing, Mathias

    2015-01-01

    This volume deals with topics such as mechanism and machine design, biomechanics and medical engineering, gears, mechanical transmissions, mechatronics, computational and experimental methods, dynamics of mechanisms and machines, micromechanisms and microactuators, and history of mechanisms and transmissions. Following MeTrApp 2011 and 2013, held under the auspices of the IFToMM, these proceedings of the 3rd Conference on Mechanisms, Transmissions and Applications offer a platform for original research presentations for researchers, scientists, industry experts and students in the fields of mechanisms and transmissions with special emphasis on industrial applications in order to stimulate the exchange of new and innovative ideas.

  6. 3rd International Conference on Multimedia Technology

    CERN Document Server

    Yang, Jian; Jiao, Feng

    2014-01-01

    Proceedings of the 3rd International Conference on Multimedia Technology (ICMT2013) focuses on both the theory and applications of multimedia technology. The recent advances, new research findings and applications in the fields of theoretical, experimental and applied image & video processing and multimedia technology presented at the conference are brought together in this book. It will serve as a valuable reference for scientists and engineers working in multimedia and related fields. Prof. Aly A. Farag works at the University of Louisville, USA; Prof. Jian Yang works at Tsinghua University, China; Dr. Feng Jiao works at Nanjing University of Information Science & Technology, China.

  7. 3rd International Workshop on Computational Engineering

    CERN Document Server

    Bischoff, Manfred; Schäfer, Michael

    2015-01-01

    This book presents selected papers from the 3rd International Workshop on Computational Engineering held in Stuttgart from October 6 to 10, 2014, bringing together innovative contributions from related fields with computer science and mathematics as an important technical basis among others. The workshop discussed the state of the art and the further evolution of numerical techniques for simulation in engineering and science. We focus on current trends in numerical simulation in science and engineering, new requirements arising from rapidly increasing parallelism in computer architectures, and novel mathematical approaches. Accordingly, the chapters of the book particularly focus on parallel algorithms and performance optimization, coupled systems, and complex applications and optimization.

  8. My Precious! The Location and Diffusion of Scientific Research: Evidence from the Synchrotron Diamond Light Source

    OpenAIRE

    2013-01-01

    We analyze the impact of the establishment of a GBP 380 million basic scientific research facility in the UK on the geographical distribution of related research. We investigate whether the siting of the Diamond Light Source, a 3rd generation synchrotron light source, in Oxfordshire induced a clustering of related research in its geographic proximity. To account for the potentially endogenous location choice of the synchrotron, we exploit the availability of a 'runner-up' site near Manchester...

  9. The 3rd-order nonlinearity of bacteriorhodopsin by four-wave mixing

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The 3rd-order nonlinear optical susceptibility X(3) and the response time of the light-transducing biomolecule bacteriorhodopsin were measured with the four-wave mixing technique and a picosecond frequency-doubled Nd:YAG laser(532nm).The X(3) and the response time measured are 10-9 esu and 20 ps,respectively.The possible mechanism for generating the 3rd-order nonlinear optical susceptibility X(3) and response time were discussed.

  10. 3rd International Conference Nanotechnology and Nanomaterials

    CERN Document Server

    Yatsenko, Leonid

    2016-01-01

    This book presents some of the latest achievements in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe, and beyond. It features contributions from participants in the 3rd International Science and Practice Conference Nanotechnology and Nanomaterials (NANO2015) held in Lviv, Ukraine on August 26-30, 2015. The International Conference was organized jointly by the Institute of Physics of the National Academy of Sciences of Ukraine, University of Tartu (Estonia), Ivan Franko National University of Lviv (Ukraine), University of Turin (Italy), Pierre and Marie Curie University (France), and European Profiles A.E. (Greece). Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key results on topics ranging from nanooptics, nanoplasmonics, and interface studies to energy storage and biomedical applications. Presents cutting-edge advances in nanocomposites and carbon and silicon-based nanomaterials for a wide range of engine...

  11. 3rd International Conference on Robot Intelligence Technology and Applications

    CERN Document Server

    Yang, Weimin; Jo, Jun; Sincak, Peter; Myung, Hyun

    2015-01-01

    This book covers all aspects of robot intelligence from perception at sensor level and reasoning at cognitive level to behavior planning at execution level for each low level segment of the machine. It also presents the technologies for cognitive reasoning, social interaction with humans, behavior generation, ability to cooperate with other robots, ambience awareness, and an artificial genome that can be passed on to other robots. These technologies are to materialize cognitive intelligence, social intelligence, behavioral intelligence, collective intelligence, ambient intelligence and genetic intelligence. The book aims at serving researchers and practitioners with a timely dissemination of the recent progress on robot intelligence technology and its applications, based on a collection of papers presented at the 3rd International Conference on Robot Intelligence Technology and Applications (RiTA), held in Beijing, China, November 6 - 8, 2014. For better readability, this edition has the total 74 papers group...

  12. Motor-Generator powering the PS (Proton Synchrotron) main magnets

    CERN Multimedia

    1983-01-01

    This motor-generator,30 MW peak, 1500 r.p.m.,pulsed power supply for the PS main magnet replaced in 1968 the initial 3000 r.p.m. motor-generator-flywheel set which had served from the PS start-up in 1959 until end 1967. See also photo 8302337 and its abstract.

  13. Developing Product Lines with 3rd-party components

    NARCIS (Netherlands)

    De Jonge, M.

    2007-01-01

    The trends toward product line development and toward adopting more 3rd-party software are hard to combine. The reason is that productlines demand fine control over the software (e.g., for diversity management), while 3rd-party software (almost by definition) provides only little or no control. A

  14. Thermal management of next-generation contact-cooled synchrotron x-ray mirrors

    Energy Technology Data Exchange (ETDEWEB)

    Khounsary, A.

    1999-10-29

    In the past decade, several third-generation synchrotrons x-ray sources have been constructed and commissioned around the world. Many of the major problems in the development and design of the optical components capable of handling the extremely high heat loads of the generated x-ray beams have been resolved. It is expected, however, that in the next few years even more powerful x-ray beams will be produced at these facilities, for example, by increasing the particle beam current. In this paper, the design of a next generation of synchrotron x-ray mirrors is discussed. The author shows that the design of contact-cooled mirrors capable of handing x-ray beam heat fluxes in excess of 500 W/mm{sup 2} - or more than three times the present level - is well within reach, and the limiting factor is the thermal stress rather then thermally induced slope error.

  15. Characterization of Extended spectrum beta-lactamases (ESBL)-producing Escherichia coli obtained from Danish pigs, pig farmers and their families from farms with high or no consumption of 3rd or 4th generation cephalosporins

    DEFF Research Database (Denmark)

    Hammerum, Anette M.; Larsen, Jesper; Dalhoff Andersen, Vibe;

    2014-01-01

    Objectives: To compare and characterize extended-spectrum b-lactamase (ESBL)-producing Escherichia coli from pigsties, pig farmers and their families on farms with previous high or no use of third- or fourth-generation cephalosporins. Methods: Twenty farms with no third- or fourth-generation ceph...

  16. Synchrotron radiation and free-electron lasers principles of coherent X-ray generation

    CERN Document Server

    Kim, Kwang-Je; Lindberg, Ryan

    2017-01-01

    Learn about the latest advances in high-brightness X-ray physics and technology with this authoritative text. Drawing upon the most recent theoretical developments, pre-eminent leaders in the field guide readers through the fundamental principles and techniques of high-brightness X-ray generation from both synchrotron and free-electron laser sources. A wide range of topics is covered, including high-brightness synchrotron radiation from undulators, self-amplified spontaneous emission, seeded high-gain amplifiers with harmonic generation, ultra-short pulses, tapering for higher power, free-electron laser oscillators, and X-ray oscillator and amplifier configuration. Novel mathematical approaches and numerous figures accompanied by intuitive explanations enable easy understanding of key concepts, whilst practical considerations of performance-improving techniques and discussion of recent experimental results provide the tools and knowledge needed to address current research problems in the field. This is a comp...

  17. Characterization of a next-generation piezo bimorph X-ray mirror for synchrotron beamlines

    Energy Technology Data Exchange (ETDEWEB)

    Alcock, Simon G., E-mail: simon.alcock@diamond.ac.uk; Nistea, Ioana; Sutter, John P.; Sawhney, Kawal [Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE (United Kingdom); Fermé, Jean-Jacques; Thellièr, Christophe; Peverini, Luca [Thales-SESO, 305 rue Louis Armand, Pôle d’Activités d’Aix les Milles, Aix-en-Provence (France)

    2015-01-01

    A next-generation bimorph mirror with piezos bonded to the side faces of a monolithic substrate was created. When replacing a first-generation bimorph mirror suffering from the junction effect, the new type of mirror significantly improved the size and shape of the reflected synchrotron X-ray beam. No evidence of the junction effect was observed even after eight months of continuous beamline usage. Piezo bimorph mirrors are versatile active optics used on many synchrotron beamlines. However, many bimorphs suffer from the ‘junction effect’: a periodic deformation of the optical surface which causes major aberrations to the reflected X-ray beam. This effect is linked to the construction of such mirrors, where piezo ceramics are glued directly below the thin optical substrate. In order to address this problem, a next-generation bimorph with piezos bonded to the side faces of a monolithic substrate was developed at Thales-SESO and optimized at Diamond Light Source. Using metrology feedback from the Diamond-NOM, the optical slope error was reduced to ∼0.5 µrad r.m.s. for a range of ellipses. To maximize usability, a novel holder was built to accommodate the substrate in any orientation. When replacing a first-generation bimorph on a synchrotron beamline, the new mirror significantly improved the size and shape of the reflected X-ray beam. Most importantly, there was no evidence of the junction effect even after eight months of continuous beamline usage. It is hoped that this new design will reinvigorate the use of active bimorph optics at synchrotron and free-electron laser facilities to manipulate and correct X-ray wavefronts.

  18. The 3rd International Symposium on Avian Brood Parasitism

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    正Invited participants on the 3rd International Symposium on Avian Brood Parasitism, sponsored by Hainan Normal University (HNU), China, Norwegian University of Science and Technology (NTNU), Norway, the Research Council of Norway, and China Ornithological Society (COS).

  19. Ethnographical Research in 3rd World Countries

    DEFF Research Database (Denmark)

    Madsen, Ulla Ambrosius

    2002-01-01

    This paper focuses on Etnografphic Research as a means for generating knowledge about the issues related to education - school learning and bringing up. The example is taken from a research project carried out in Nepal by students recruited from the Ministery of Education. The point...... is that their ethnographic practice generates knowledge about paradoxes, complexities and dilemmas in their own cultural and social context that is often ignored in (Western-driven) educational policy, research and innovation. Thus ethnographic research is functioning also as a tool in educational change and innovation....

  20. Introduction of several typical 3 rd generation AHSS for automotive industry%几种典型第三代汽车用先进高强度钢技术浅析

    Institute of Scientific and Technical Information of China (English)

    刘永刚; 潘红波; 詹华; 迟志涛

    2015-01-01

    Based on the low plasticity of the first generation advanced high strength steel ( AHSS ) and high cost with poor technological properties of the second generation AHSS, a lot of research works were done about the third generation AHSS at home and abroad last decade. Through analyzing the related research reports, the third generation AHSS is a composite microstructure with high strength BCC for the matrix that contain a certain amount of higher stability of FCC.Introduce and prospects are conducted about the present research of the third generation AHSS such asδ-TRIP steel, DSHT process, nanobainite steel, medium manganese TRIP steel, Q&P steel, and hot stamping Q&P steel.%针对第一代先进高强度钢塑性低与第二代先进高强度钢成本高、工艺性较差,国内外对第三代先进高强度钢开展了大量研究。通过对相关报道分析,第三代先进高强度钢是以高强度BCC结构为基体,在基体上有一定量的较高稳定性FCC结构的复合组织。对第三代先进高强度钢如δ-TRIP钢、DSHT工艺、纳米贝氏体钢、中锰TRIP钢、Q&P钢、HS-Q&P钢进行了介绍及展望。

  1. Characterization of a next-generation piezo bimorph X-ray mirror for synchrotron beamlines.

    Science.gov (United States)

    Alcock, Simon G; Nistea, Ioana; Sutter, John P; Sawhney, Kawal; Fermé, Jean Jacques; Thellièr, Christophe; Peverini, Luca

    2015-01-01

    Piezo bimorph mirrors are versatile active optics used on many synchrotron beamlines. However, many bimorphs suffer from the `junction effect': a periodic deformation of the optical surface which causes major aberrations to the reflected X-ray beam. This effect is linked to the construction of such mirrors, where piezo ceramics are glued directly below the thin optical substrate. In order to address this problem, a next-generation bimorph with piezos bonded to the side faces of a monolithic substrate was developed at Thales-SESO and optimized at Diamond Light Source. Using metrology feedback from the Diamond-NOM, the optical slope error was reduced to ∼ 0.5 µrad r.m.s. for a range of ellipses. To maximize usability, a novel holder was built to accommodate the substrate in any orientation. When replacing a first-generation bimorph on a synchrotron beamline, the new mirror significantly improved the size and shape of the reflected X-ray beam. Most importantly, there was no evidence of the junction effect even after eight months of continuous beamline usage. It is hoped that this new design will reinvigorate the use of active bimorph optics at synchrotron and free-electron laser facilities to manipulate and correct X-ray wavefronts.

  2. Academic Training: 3rd Term - 01 April - 30 June 2005

    CERN Multimedia

    Françoise Benz

    2005-01-01

    2004 - 2005 ACADEMIC TRAINING PROGRAMME 3rd Term - 01 April - 30 June 2005 REGULAR LECTURE PROGRAMME Monte Carlo generators fot the LHC by T. Sjostrand / CERN-PH 4, 5, 6, 7 April The LHC machine experiment interface by S. Tapprogge / Univ. Gutenberg, Mainz, D R. Assmann, CERN-AB, E. Tsesmelis and D. Macina / CERN-TS 18, 19, 20, 21, 22 April Cosmology for particle physicists by S. Carroll / Univ. of Chicago, USA 9, 10, 11, 12, 13 May The ITER projects: technological challenges by P. Bruzzone / EPFL CRPP, Zürich, CH J. Lister / EPFL CRPP, Lausanne, CH 30, 31 May, 1, 2, 3 June String theory by C. Johnson / Univ. of Southern California, USA 6, 7, 8, 9, 10 June Small may be beautiful By M. Davier / LAL, Orsay, F. T. Soldner / ILL, Grenoble, F. 13, 14, 15, 16, 17 June Climate change and challenges for the environment by C. Schluchter / Univ. Bern. CH 20, 21, 22 June LECTURE SERIES FOR POSTGRADUATE STUDENTS Particle detectors - principles and techniques by C. Joram, L. Ropelewski, M. Moll, C. ...

  3. The 3rd colloquium on process simulation. Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Jokilaakso, A. [ed.

    1996-12-31

    The presentations collected in this volume were presented at the 3rd Colloquium on Process Simulation held at Helsinki University of Technology, Espoo, Finland, June 12-14, 1996. In the more developed industrial nations, the processes for producing chemicals, energy, and materials encounter environmental concern and laws which challenge engineers to develop the processes towards more efficient, economical and safe operation. This necessitates more thorough understanding of the processes and phenomena involved. Formerly, the development of the processes was largely based on trial and error, whereas today, the development of computer performance together with the diversification of modelling software enables simulation of the processes. The increased capacity and possibilities for modelling the processes brought by the improved hardware and software, have generated a strong demand for more accurate mathematical descriptions of the processes. Especially, the coupling of computational fluid dynamics and chemical kinetics, combustion, and thermodynamics is of current interest in process oriented technology. This colloquium attempts to give examples of modelling efforts in operation in different universities, research institutes and companies. Furthermore, the aim of this colloquium is to offer an annual opportunity to the researchers to come together and discuss their common problems and the state of their investigations

  4. 3rd Conference on Microactuators and Micromechanisms

    CERN Document Server

    Ananthasuresh, Gondi; Corves, Burkhard; Petuya, Victor

    2015-01-01

    This book contains applications of micromechanisms and microactuators in several very modern technical fields such as mechatronics, biomechanics, machines, micromachines, robotics and apparatuses. In connection with its topic, the work combines the theoretical results with experimental tests on micromechanisms and microactuators. The book presents the most recent research advances in Machine and Mechanisms Science. It includes the accepted reviewed papers of researchers specialized in the topics of the conference: microactuators and micro-assembly, micro sensors involving movable solids, micro-opto-mechanical devices, mechanical tools for cell and tissue studies, micromanipulation and micro-stages, micro-scale flight and swimming, micro-robotics and surgical tools, micron-scale power generation, miniature manufacturing machines, micromechatronics and micro-mechanisms, biomechanics micro and nano scales and control issues in microsystems.  The presented applications of micromechanisms and microactuators i...

  5. Search for 3rd Generation Vector Leptoquarks in the Di-tau Di-jet Channel in Proton Antiproton Collisions at square √s = 1.96 TeV

    Energy Technology Data Exchange (ETDEWEB)

    Forrester, Stanley Scott [Univ. of California, Davis, CA (United States)

    2006-01-01

    We search for third generation vector leptoquarks (V LQ3) produced in colliding p$\\bar{p}$ beams operating at √s = 1.96 TeV at the CDF experiment in Run II of the Fermilab Tevatron. We use 322 pb-1 of data to search for the V LQ3 signal in the di-tau plus di-jet channel. For the first time, the full matrix element is used in the Monte Carlo simulation of this signal. With no events observed in the signal region, we set a 95% C.L. upper limit on the V LQ3 pair production cross section of σ < 344fb, assuming Yang-Mills couplings and Br(V LQ3 → bτ) = 1, and a lower limit on the V LQ3 mass of mV LQ3 > 317 GeV=c2. If theoretical uncertainties on the cross section are applied in the least favorable manner the results are σ < 360fb and mV LQ3 > 294 GeV=c2. The Minimal coupling V LQ3 result is an upper limit on the cross section of σ < 493fb (σ < 610fb) and the lower limit on the mass is mV LQ3 > 251 GeV=c2 (mV LQ3 > 223 GeV=c2) for the nominal (1σ varied) theoretical expectation.

  6. Electron beam ion sources for use in second generation synchrotrons for medical particle therapy

    Science.gov (United States)

    Zschornack, G.; Ritter, E.; Schmidt, M.; Schwan, A.

    2014-02-01

    Cyclotrons and first generation synchrotrons are the commonly applied accelerators in medical particle therapy nowadays. Next generation accelerators such as Rapid Cycling Medical Synchrotrons (RCMS), direct drive accelerators, or dielectric wall accelerators have the potential to improve the existing accelerator techniques in this field. Innovative accelerator concepts for medical particle therapy can benefit from ion sources which meet their special requirements. In the present paper we report on measurements with a superconducting Electron Beam Ion Source, the Dresden EBIS-SC, under the aspect of application in combination with RCMS as a well proven technology. The measurements indicate that this ion source can offer significant advantages for medical particle therapy. We show that a superconducting EBIS can deliver ion pulses of medically relevant ions such as protons, C4 + and C6 + ions with intensities and frequencies required for RCMS [S. Peggs and T. Satogata, "A survey of Hadron therapy accelerator technology," in Proceedings of PAC07, BNL-79826- 2008-CP, Albuquerque, New Mexico, USA, 2007; A. Garonna, U. Amaldi et al., "Cyclinac medical accelerators using pulsed C6 +/H+_2 ion sources," in Proceedings of EBIST 2010, Stockholm, Sweden, July 2010]. Ion extraction spectra as well as individual ion pulses have been measured. For example, we report on the generation of proton pulses with up to 3 × 109 protons per pulse and with frequencies of up to 1000 Hz at electron beam currents of 600 mA.

  7. Power Amplifier Linearization Techniques for 3rd Generation Handsets

    DEFF Research Database (Denmark)

    Nielsen, Troels Studsgaard

    is put on the study, design, and implementation of a 5th order polynomial workfunction predistorter. To facilitate a realistic predistorter system study, an accurate PA behavioral model is developed from pulsed large signal S-parameters measurements of a real 3G-PP W-CDMA device. At the nominal 0d...... that the inclusion of even order workfunction terms improves predistorter linearity performance but at the expense of more stringent workfunction bandwidth requirements, increased sensitivity of the workfunction coefficients, and a slightly degraded adaptation speed. A study of the predistorter noise degradation...... provides a simplified and compact noise analysis, which enables the RF designer to make a qualitatively trade-off between linearity performance and noise degradation. A study of the predistorter adaptation to varying antenna loads results in a novel parameterized workfunction, which can improve adaptation...

  8. Impressions from the 3rd Nordcode Seminar & Workshop

    DEFF Research Database (Denmark)

    Lenau, Torben Anker; Boelskifte, Per; Hansen, Claus Thorp

    2005-01-01

    This paper summarises the purpose and contents of the 3rd Nordcode Seminar and Workshop. First, the workshop assignments are described. Second, the paper briefly presents the topics of the keynote speeches and all presentations of the working papers that took place in the seminar....

  9. 3rd Session of the Sant Cugat Forum on Astrophysics

    CERN Document Server

    Gravitational wave astrophysics

    2015-01-01

    This book offers review chapters written by invited speakers of the 3rd Session of the Sant Cugat Forum on Astrophysics — Gravitational Waves Astrophysics. All chapters have been peer reviewed. The book goes beyond normal conference proceedings in that it provides a wide panorama of the astrophysics of gravitational waves and serves as a reference work for researchers in the field.

  10. 3rd Semester and Master’s Thesis Ideas 2011

    DEFF Research Database (Denmark)

    The report contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd semester p...

  11. 3rd Semester and Master’s Thesis Ideas 2012

    DEFF Research Database (Denmark)

    Clausen, Johan

    The report contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd semester p...

  12. 3rd Semester and Master’s Thesis Ideas 2013

    DEFF Research Database (Denmark)

    The following pages contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short master projects as well as regular 3rd seme...

  13. 3rd International Caricature Art Competition, Beijing, China

    OpenAIRE

    Mumberson, Stephen

    2016-01-01

    One of ten medal winners of the 3rd International Caricature Art Competition, Beijing,China on the theme Dachuan Xia -Chinese Cartoonist,Illustrator and Academic. I was one of only two European artists selected and the only British artist selected. The fellow winners came from Turkey, Egypt, Iran and China. The competition was organized by RedManArt, Beijing,China

  14. Minutes of the 3rd World Integrative Medicine Congress

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ With its mottos of Inheritance,Innovation,Harmonization,and Development,the 3rd World Integrative Medicine Congress has been held in Guangzhou,China from September 22 to 24,2007,sponsored by the Chinese Association of Integrative Medicine and co-organized by Guangdong Provincial Academy of Chinese Medical Sciences.

  15. Organizational Knowledge Communication – a Nascent 3rd Order Disciplinarity

    DEFF Research Database (Denmark)

    Kastberg, Peter

    2014-01-01

    to Organizational Knowledge Communication, i.e., organization studies, communication theory and Knowledge Management, respectively. In their synthesis the three trajectories form a disciplinary triple helix, a triple helix which, in turn, gives rise to Organizational Knowledge Communication as a novel, 3rd order...... visible, becomes a disciplinarity. I theoretically present an example of such a punctual integration and point to some of the immediate research promises that it holds. This theoretical account ends by describing Organizational Knowledge Communication as a nascent 3rd order disciplinarity.......There is an emerging tendency that the organizational communication functions of larger companies enter into a symbiotic relationship with the companies’ Knowledge Management function. A tendency this journal has labelled Organizational Knowledge Communication. This should come as no surprise...

  16. 3rd International Conference on Ecosystem Assessment Management

    CERN Document Server

    Ma, Sheng-Quan; Cao, Hu-hua; Ecosystem Assessment and Fuzzy Systems Management

    2014-01-01

    “Ecosystem Assessment and Fuzzy Systems Management” is the edited outcome of the 3rd International Conference on Ecosystem Assessment Management (ICEAM) and the Workshop on the Construction of an Early Warning Platform for Eco-tourism (WCEWPE) in Hainan on May 5-12, 2013, Haikou, China. The 3rd ICEAM and the WCEWPE, built on the success of previous conferences, are major Symposiums for scientists, engineers and logistic management researchers presenting their the latest achievements, developments and applications in all areas of Ecosystem Assessment Management, Early Warning Platform for Eco-tourism and fuzziology. It aims to strengthen relations between industry research laboratories and universities, and to create a primary symposium for world scientists. The book, containing 47 papers, is divided into five parts: “Ecosystem Assessment, Management and Information”; “Intelligent Algorithm, Fuzzy Optimization and Engineering Application”; “Spatial Data Analysis and Intelligent Information Proces...

  17. Impact of next-generation synchrotron radiation sources on materials research

    CERN Document Server

    Shenoy, G K

    2003-01-01

    Three generations of synchrotron radiation sources have revolutionized our understanding of various correlations in the equilibrium phase of materials through X-ray imaging, spectroscopy and scattering techniques. It is anticipated that new sources based on energy-recovery linacs and X-ray free-electron lasers will deliver X-ray pulses that are below a few-hundred femtoseconds in length and have very high coherence. These sources will extend and broaden our current knowledge of materials science. But more importantly, it is expected that these sources will provide the first glimpse of nonequilibrium processes in materials, including nonthermal melting, metal-insulator transitions involving nonequilibrium phases, laser-induced catalytic oxidation, and determining the structure of imperfect nanoparticles lacking crystalline structure.

  18. 3rd International Conference on Computer & Communication Technologies

    CERN Document Server

    Bhateja, Vikrant; Raju, K; Janakiramaiah, B

    2017-01-01

    The book is a compilation of high-quality scientific papers presented at the 3rd International Conference on Computer & Communication Technologies (IC3T 2016). The individual papers address cutting-edge technologies and applications of soft computing, artificial intelligence and communication. In addition, a variety of further topics are discussed, which include data mining, machine intelligence, fuzzy computing, sensor networks, signal and image processing, human-computer interaction, web intelligence, etc. As such, it offers readers a valuable and unique resource.

  19. Nice observatory measurements of double stars (3rd series)

    Science.gov (United States)

    Thorel, J.-C.

    2000-12-01

    We present recent measurements of visual double stars made at the Nice Observatory (3rd series). We also report the discovery of a new double star: JCT 4. Moreover we give a more precise position of the double star DOO 35. Table 1 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

  20. 3rd International Multidisciplinary Microscopy and Microanalysis Congress

    CERN Document Server

    Oral, Zehra

    2017-01-01

    The 3rd International Multidisciplinary Microscopy Congress (InterM2015), held from 19 to 23 October 2015, focused on the latest developments concerning applications of microscopy in the biological, physical and chemical sciences at all dimensional scales, advances in instrumentation, techniques in and educational materials on microscopy. These proceedings gather 17 peer-reviewed technical papers submitted by leading academic and research institutions from nine countries and representing some of the most cutting-edge research available.

  1. 3rd grade English language learners making sense of sound

    OpenAIRE

    Suarez, Enrique; Otero, Valerie

    2012-01-01

    Despite the extensive body of research that supports scientific inquiry and argumentation as cornerstones of physics learning, these strategies continue to be virtually absent in most classrooms, especially those that involve students who are learning English as a second language. This study presents results from an investigation of 3rd grade students' discourse about how length and tension affect the sound produced by a string. These students came from a variety of language backgrounds, and ...

  2. Generating picosecond x-ray pulses in synchrotron light sources using dipole kickers

    Directory of Open Access Journals (Sweden)

    W. Guo

    2007-02-01

    Full Text Available The duration of the x-ray pulse generated at a synchrotron light source is typically tens of picoseconds. Shorter pulses are highly desired by the users. In electron storage rings, the vertical beam size is usually orders of magnitude less than the bunch length due to radiation damping; therefore, a shorter pulse can be obtained by slitting the vertically tilted bunch. Zholents proposed tilting the bunch using rf deflection. We found that tilted bunches can also be generated by a dipole magnet kick. A vertical tilt is developed after the kick in the presence of nonzero chromaticity. The tilt was successfully observed and a 4.2-ps pulse was obtained from a 27-ps electron bunch at the Advanced Photon Source. Based on this principle, we propose a short-pulse generation scheme that produces picosecond x-ray pulses at a repetition rate of 1–2 kHz, which can be used for pump-probe experiments.

  3. Relationship between Stock Growth of the 3rd Generation Seed Orchard of Cunninghamia lanceolata and Soil Properties in Different Cutting Blank%不同采伐迹地杉木第三代种子园砧木高生长与土壤关系

    Institute of Scientific and Technical Information of China (English)

    江晓丽

    2012-01-01

    以杉木第三代种子园为调查研究对象,在外业调查的基础上,对采集的土壤样品进行了性质测定,并依据种子园砧木定植当年的树高,通过方差显著性分析及LSD多重比较分析,探讨了不同采伐迹地间杉木第三代种子园砧木定植当年生长与土壤的差异性。结果表明:土壤pH在4.2-4.8之间、速效磷含量在6.3-6.7 mg/kg之间、有机质在39-43 g/kg之间、全氮含量在1.5-1.7 g/kg之间的林地较适宜杉木砧木的生长;除速效钾外,油茶套种马尾松幼林改造迹地的各土壤养分含量比其它类型高;各采伐迹地土壤表土层厚度差异不显著;马尾松采伐迹地的砧木高生长最好。综合分析,马尾松采伐迹地与油茶套种马尾松采伐迹地较适宜杉木第三代种子园的建立。%With the research object of stock growth of the 3rd generation seed orchard of Cunninghamia lanceolata and based on field investigation, the properties of soil samples were determined and the tree height for that year were investigated. With analysis of variance and LSD multiple comparison, the differences between soil nutrients and the growth of young C. lanceolata in different cutting blank were researched. The results showed that they were suitable to growth for C. lanceolata at pH between 4.2-4.8, available P between 6.3-6.7 mg/kg, organic matter between 39-43 g/kg, total N 1.5~1.7 g/kg, except for available K. Soil properties content of Camellia oleifera interplanted young Pinus massoniana plantations were higher than other kinds. The differences of soil topsoil thickness during cutting blank were not significant. The stock growth of young C. lanceolata in cutting blank of P. massoniana was best. The comprehensive analysis results showed that the cutting blank of P. massoniana plantations and C. oleifera interplanted young P. massoniana plantations were suitable to the building of the 3rd generation seed orchard of C. lanceolatca

  4. 3rd Conference on Ignition Systems for Gasoline Engines

    CERN Document Server

    Sens, Marc

    2017-01-01

    The volume includes selected and reviewed papers from the 3rd Conference on Ignition Systems for Gasoline Engines in Berlin in November 2016. Experts from industry and universities discuss in their papers the challenges to ignition systems in providing reliable, precise ignition in the light of a wide spread in mixture quality, high exhaust gas recirculation rates and high cylinder pressures. Classic spark plug ignition as well as alternative ignition systems are assessed, the ignition system being one of the key technologies to further optimizing the gasoline engine.

  5. 3rd International Conference on Intelligent Technologies and Engineering Systems

    CERN Document Server

    2016-01-01

    This book includes the original, peer reviewed research from the 3rd International Conference on Intelligent Technologies and Engineering Systems (ICITES2014), held in December, 2014 at Cheng Shiu University in Kaohsiung, Taiwan. Topics covered include: Automation and robotics, fiber optics and laser technologies, network and communication systems, micro and nano technologies, and solar and power systems. This book also Explores emerging technologies and their application in a broad range of engineering disciplines Examines fiber optics and laser technologies Covers biomedical, electrical, industrial, and mechanical systems Discusses multimedia systems and applications, computer vision and image & video signal processing.

  6. 3rd Workshop on "Combinations of Intelligent Methods and Applications"

    CERN Document Server

    Palade, Vasile

    2013-01-01

    The combination of different intelligent methods is a very active research area in Artificial Intelligence (AI). The aim is to create integrated or hybrid methods that benefit from each of their components.  The 3rd Workshop on “Combinations of Intelligent Methods and Applications” (CIMA 2012) was intended to become a forum for exchanging experience and ideas among researchers and practitioners who are dealing with combining intelligent methods either based on first principles or in the context of specific applications. CIMA 2012 was held in conjunction with the 22nd European Conference on Artificial Intelligence (ECAI 2012).This volume includes revised versions of the papers presented at CIMA 2012.  .

  7. 3rd International Conference on Movement, Health and Exercise 2016

    CERN Document Server

    Cheong, Jadeera; Usman, Juliana; Ahmad, Mohd; Razman, Rizal; Selvanayagam, Victor

    2017-01-01

    This volume presents the proceedings of the 3rd International Conference on Movement, Health and Exercise 2016 (MoHE2016). The conference was jointly organized by the Biomedical Engineering Department and Sports Centre, University of Malaya. It was held in Malacca, from 28-30 September 2016. MoHE 2016 provided a good opportunity for speakers and participants to actively discuss about recent developments in a wide range of topics in the area of sports and exercise science. In total, 83 presenters and 140 participants took part in this successful conference. .

  8. 3rd International Conference on X-ray Technique

    Science.gov (United States)

    Potrakhov, N. N.; Gryaznov, A. Yu; Lisenkov, A. A.; Kostrin, D. K.

    2017-02-01

    In this preface a brief history, modern aspects and future tendencies in development of the X-ray technique as seen from the 3rd International Conference on X-ray Technique that was held on 24-25 November 2016 in Saint Petersburg, Russia are described On 24-25 November 2016 in Saint Petersburg on the basis of Saint Petersburg State Electrotechnical University “LETI” n. a. V. I. Ulyanov (Lenin) was held the 3rd International Conference on X-ray Technique. The tradition to hold a similar conference in our country was laid in Soviet times. The last of them, the All-Union Conference on the Prospects of X-ray Tubes and Equipment was organized and held more than a quarter century ago - on 21-23 November 1999, at the initiative and under the leadership of the chief engineer of the Leningrad association of electronic industry “Svetlana” Borovsky Alexander Ivanovich and the chief of special design bureau of X-ray devices of “Svetlana” Shchukin Gennady Anatolievich. The most active part in the organization and work of the conference played members of the department of X-ray and electron beam instruments of Leningrad Electrotechnical Institute “LETI” (the former name of Saint Petersburg State Electrotechnical University “LETI”), represented by head of the department professor Ivanov Stanislav Alekseevich.

  9. 3rd Workshop on Branching Processes and their Applications

    CERN Document Server

    González, Miguel; Gutiérrez, Cristina; Martínez, Rodrigo; Minuesa, Carmen; Molina, Manuel; Mota, Manuel; Ramos, Alfonso; WBPA15

    2016-01-01

    This volume gathers papers originally presented at the 3rd Workshop on Branching Processes and their Applications (WBPA15), which was held from 7 to 10 April 2015 in Badajoz, Spain (http://branching.unex.es/wbpa15/index.htm). The papers address a broad range of theoretical and practical aspects of branching process theory. Further, they amply demonstrate that the theoretical research in this area remains vital and topical, as well as the relevance of branching concepts in the development of theoretical approaches to solving new problems in applied fields such as Epidemiology, Biology, Genetics, and, of course, Population Dynamics. The topics covered can broadly be classified into the following areas: 1. Coalescent Branching Processes 2. Branching Random Walks 3. Population Growth Models in Varying and Random Environments 4. Size/Density/Resource-Dependent Branching Models 5. Age-Dependent Branching Models 6. Special Branching Models 7. Applications in Epidemiology 8. Applications in Biology and Genetics Offer...

  10. Report from the 3rd Workshop on Extremely Large Databases

    Directory of Open Access Journals (Sweden)

    Jacek Becla

    2010-02-01

    Full Text Available Academic and industrial users are increasingly facing the challenge of petabytes of data, but managing and analyzing such large data sets still remains a daunting task. Both the database and the map/reduce communities worldwide are working on addressing these issues. The 3rdExtremely Large Databases workshop was organized to examine the needs of scientific communities beginning to face these issues, to reach out to European communities working on extremely large scale data challenges, and to brainstorm possible solutions. The science benchmark that emerged from the 2nd workshop in this series was also debated. This paper is the final report of the discussions and activities at this workshop.

  11. 3rd International Conference on Nanotechnologies and Biomedical Engineering

    CERN Document Server

    Tiginyanu, Ion

    2016-01-01

    This volume presents the proceedings of the 3rd International Conference on Nanotechnologies and Biomedical Engineering which was held on September 23-26, 2015 in Chisinau, Republic of Moldova. ICNBME-2015 continues the series of International Conferences in the field of nanotechnologies and biomedical engineering. It aims at bringing together scientists and engineers dealing with fundamental and applied research for reporting on the latest theoretical developments and applications involved in the fields. Topics include Nanotechnologies and nanomaterials Plasmonics and metamaterials Bio-micro/nano technologies Biomaterials Biosensors and sensors systems Biomedical instrumentation Biomedical signal processing Biomedical imaging and image processing Molecular, cellular and tissue engineering Clinical engineering, health technology management and assessment; Health informatics, e-health and telemedicine Biomedical engineering education Nuclear and radiation safety and security Innovations and technology transfer...

  12. 3rd grade English language learners making sense of sound

    Science.gov (United States)

    Suarez, Enrique; Otero, Valerie

    2013-01-01

    Despite the extensive body of research that supports scientific inquiry and argumentation as cornerstones of physics learning, these strategies continue to be virtually absent in most classrooms, especially those that involve students who are learning English as a second language. This study presents results from an investigation of 3rd grade students' discourse about how length and tension affect the sound produced by a string. These students came from a variety of language backgrounds, and all were learning English as a second language. Our results demonstrate varying levels, and uses, of experiential, imaginative, and mechanistic reasoning strategies. Using specific examples from students' discourse, we will demonstrate some of the productive aspects of working within multiple language frameworks for making sense of physics. Conjectures will be made about how to utilize physics as a context for English Language Learners to further conceptual understanding, while developing their competence in the English language.

  13. 3rd grade English language learners making sense of sound

    CERN Document Server

    Suarez, Enrique

    2012-01-01

    Despite the extensive body of research that supports scientific inquiry and argumentation as cornerstones of physics learning, these strategies continue to be virtually absent in most classrooms, especially those that involve students who are learning English as a second language. This study presents results from an investigation of 3rd grade students' discourse about how length and tension affect the sound produced by a string. These students came from a variety of language backgrounds, and all were learning English as a second language. Our results demonstrate varying levels, and uses, of experiential, imaginative, and mechanistic reasoning strategies. Using specific examples from students' discourse, we will demonstrate some of the productive aspects of working within multiple language frameworks for making sense of physics. Conjectures will be made about how to utilize physics as a context for English Language Learners to further conceptual understanding, while developing their competence in the English l...

  14. 3rd Computer Science On-line Conference

    CERN Document Server

    Senkerik, Roman; Oplatkova, Zuzana; Silhavy, Petr; Prokopova, Zdenka

    2014-01-01

    This book is based on the research papers presented in the 3rd Computer Science On-line Conference 2014 (CSOC 2014).   The conference is intended to provide an international forum for discussions on the latest high-quality research results in all areas related to Computer Science. The topics addressed are the theoretical aspects and applications of Artificial Intelligences, Computer Science, Informatics and Software Engineering.   The authors provide new approaches and methods to real-world problems, and in particular, exploratory research that describes novel approaches in their field. Particular emphasis is laid on modern trends in selected fields of interest. New algorithms or methods in a variety of fields are also presented.   This book is divided into three sections and covers topics including Artificial Intelligence, Computer Science and Software Engineering. Each section consists of new theoretical contributions and applications which can be used for the further development of knowledge of everybod...

  15. 3rd Symposium on Space Optical Instruments and Applications

    CERN Document Server

    Zhang, Guangjun

    2017-01-01

    This volume contains selected and expanded contributions presented at the 3rd Symposium on Space Optical Instruments and Applications in Beijing, China June 28 – 29, 2016. This conference series is organised by the Sino-Holland Space Optical Instruments Laboratory, a cooperation platform between China and the Netherlands. The symposium focused on key technological problems of optical instruments and their applications in a space context. It covered the latest developments, experiments and results regarding theory, instrumentation and applications in space optics. The book is split across five topical sections. The first section covers space optical remote sensing system design, the second advanced optical system design, the third remote sensor calibration and measurement. Remote sensing data processing and information extraction is then presented, followed by a final section on remote sensing data applications. .

  16. 3rd International Conference on Computational Mathematics and Computational Geometry

    CERN Document Server

    Ravindran, Anton

    2016-01-01

    This volume presents original research contributed to the 3rd Annual International Conference on Computational Mathematics and Computational Geometry (CMCGS 2014), organized and administered by Global Science and Technology Forum (GSTF). Computational Mathematics and Computational Geometry are closely related subjects, but are often studied by separate communities and published in different venues. This volume is unique in its combination of these topics. After the conference, which took place in Singapore, selected contributions chosen for this volume and peer-reviewed. The section on Computational Mathematics contains papers that are concerned with developing new and efficient numerical algorithms for mathematical sciences or scientific computing. They also cover analysis of such algorithms to assess accuracy and reliability. The parts of this project that are related to Computational Geometry aim to develop effective and efficient algorithms for geometrical applications such as representation and computati...

  17. 3rd International Workshop on Turbulent Spray Combustion

    CERN Document Server

    Gutheil, Eva

    2014-01-01

    This book reflects the results of the 2nd and 3rd International Workshops on Turbulent Spray Combustion. The focus is on progress in experiments and numerical simulations for two-phase flows, with emphasis on spray combustion. Knowledge of the dominant phenomena and their interactions allows development of predictive models and their use in combustor and gas turbine design. Experts and young researchers present the state-of-the-art results, report on the latest developments and exchange ideas in the areas of experiments, modelling and simulation of reactive multiphase flows. The first chapter reflects on flame structure, auto-ignition and atomization with reference to well-characterized burners, to be implemented by modellers with relative ease. The second chapter presents an overview of first simulation results on target test cases, developed at the occasion of the 1st International Workshop on Turbulent Spray Combustion. In the third chapter, evaporation rate modelling aspects are covered, while the fourth ...

  18. 3rd International Symposium for Intelligent Transportation and Smart City

    CERN Document Server

    Xie, Xiongyao; Sun, Jian; Ma, Limin; Chen, Yinong; ITASC

    2017-01-01

    This book presents research advances in intelligent transportation and smart cities in detail, mainly focusing on green traffic and urban utility tunnels, presented at the 3rd International Symposium for Intelligent Transportation and Smart City (ITASC) held at Tongji University, Shanghai, on May 19–20, 2017. It discusses a number of hot topics, such as the 2BMW system (Bus, Bike, Metro and Walking), transportation safety and environmental protection, urban utility design and application, as well as the application of BIM (Building Information Modeling) in city design. By connecting the theory and applications of intelligent transportation in smart cities, it enhances traffic efficiency and quality. The book gathers numerous selected papers and lectures, including contributions from respected scholars and the latest engineering advances, to provide guidance to researchers in the field of transportation and urban planning at universities and in related industries. The first conference in the ITASC series sta...

  19. Summary of the 3rd workshop on the reduced-moderation water reactor

    Energy Technology Data Exchange (ETDEWEB)

    Ishikawa, Nobuyuki; Nakatsuka, Tohru; Iwamura, Takamichi [eds.

    2000-06-01

    The research activities of a Reduced-Moderation Water Reactor (RMWR) are being performed for a development of the next generation water-cooled reactor. A workshop on the RMWR was held on March 3rd 2000 aiming to exchange information between JAERI and other organizations such as universities, laboratories, utilities and vendors. This report summarizes the contents of lectures and discussions on the workshop. The 1st workshop was held on March 1998 focusing on the review of the research activities and future research plan. The succeeding 2nd workshop was held on March 1999 focusing on the topics of the plutonium utilization in water-cooled reactors. The 3rd workshop was held on March 3rd 2000, which was attended by 77 participants. The workshop began with a lecture titled 'Recent Situation Related to Reduced-Moderation Water Reactor (RMWR)', followed by 'Program on MOX Fuel Utilization in Light Water Reactors' which is the mainstream scenario of plutonium utilization by utilities, and 'Feasibility Studies on Commercialized Fast Breeder Reactor Cycle System' mainly conducted by Japan Nuclear Cycle Development Institute (JNC). Also, following lectures were given as the recent research activities in JAERI: 'Progress in Design Study on Reduced-Moderation Water Reactors', 'Long-Term Scenarios of Power Reactors and Fuel Cycle Development and the Role of Reduced Moderation Water Reactors', 'Experimental and Analytical Study on Thermal Hydraulics' and Reactor Physics Experiment Plan using TCA'. At the end of the workshop, a general discussion was performed about the research and development of the RMWR. This report includes the original papers presented at the workshop and summaries of the questions and answers for each lecture and general discussion, as well as presentation viewgraphs, program and participant list as appendixes. The 7 of the presented papers are indexed individually. (J.P.N.)

  20. MOSFET dosimetry with high spatial resolution in intense synchrotron-generated x-ray microbeams

    Energy Technology Data Exchange (ETDEWEB)

    Siegbahn, E. A.; Braeuer-Krisch, E.; Bravin, A.; Nettelbeck, H.; Lerch, M. L. F.; Rosenfeld, A. B. [European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz, 38043 Grenoble (France); Center for Medical Radiation Physics, University of Wollongong, Wollongong, New South Wales 2522 (Australia)

    2009-04-15

    Various dosimeters have been tested for assessing absorbed doses with microscopic spatial resolution in targets irradiated by high-flux, synchrotron-generated, low-energy ({approx}30-300 keV) x-ray microbeams. A MOSFET detector has been used for this study since its radio sensitive element, which is extraordinarily narrow ({approx}1 {mu}m), suits the main applications of interest, microbeam radiation biology and microbeam radiation therapy (MRT). In MRT, micrometer-wide, centimeter-high, and vertically oriented swaths of tissue are irradiated by arrays of rectangular x-ray microbeams produced by a multislit collimator (MSC). We used MOSFETs to measure the dose distribution, produced by arrays of x-ray microbeams shaped by two different MSCs, in a tissue-equivalent phantom. Doses were measured near the center of the arrays and maximum/minimum (peak/valley) dose ratios (PVDRs) were calculated to determine how variations in heights and in widths of the microbeams influenced this for the therapy, potentially important parameter. Monte Carlo (MC) simulations of the absorbed dose distribution in the phantom were also performed. The results show that when the heights of the irradiated swaths were below those applicable to clinical therapy (<1 mm) the MC simulations produce estimates of PVDRs that are up to a factor of 3 higher than the measured values. For arrays of higher microbeams (i.e., 25 {mu}mx1 cm instead of 25x500 {mu}m{sup 2}), this difference between measured and simulated PVDRs becomes less than 50%. Closer agreement was observed between the measured and simulated PVDRs for the Tecomet MSC (current collimator design) than for the Archer MSC. Sources of discrepancies between measured and simulated doses are discussed, of which the energy dependent response of the MOSFET was shown to be among the most important.

  1. Extreme and Local 3rd Harmonic Response of Niobium (Nb) Superconductor

    Science.gov (United States)

    Oripov, Bakhrom; Tai, Tamin; Anlage, Steven

    Superconducting Radio Frequency (SRF) cavities are being widely used in new generation particle accelerators. These SRF cavities are based on bulk Nb. Based on the needs of the SRF community to identify defects on Nb surfaces, a novel near-field magnetic microwave microscope was successfully built using a magnetic writer from a conventional magnetic recording hard-disk drive1. This magnetic writer can create an RF magnetic field, localized and strong enough to drive Nb into the vortex state. This probe enables us to locate defects through scanning and mapping of the local electrodynamic response in the multi-GHz frequency range. Recent measurements have shown that 3rd harmonic nonlinear response is far more sensitive to variations in input power and temperature then linear response, thus we mainly study the 3rd harmonic response. Moreover, the superconductor is usually the only source for nonlinear response in our setup, thus there is less chance of having noise or background signal. Understanding the mechanism responsible for this non-linear response is important for improving the performance of SRF cavities. Besides Nb we also study various other superconductors such as MgB2 and the cuprate Bi-Sr-Ca-Cu-O (BSCCO) for potential applications in SRF cavities. This work is funded by US Department of Energy through Grant # DE-SC0012036T and CNAM.

  2. Synchrotron Radiation Based Study of X-Ray Absorption of Flame Generated Nanoparticles

    Science.gov (United States)

    2007-11-02

    induced ionization of nanoparticles, a proposal was prepared for submission to the French Government sponsored Programme Nationale du Physico- Chimie du...by the European Synchrotron Radiation Facility and by the French Programme Nationale du Physico- Chimie du Milieu Interstellaire. Special thanks are due

  3. 3rd Course of the International School of Advanced Geodesy

    CERN Document Server

    Sansò, Fernando

    1985-01-01

    During the period April 25th to May 10th, 1984 the 3rd Course of the International School of Advanced Geodesy entitled "Optimization and Design of Geodetic Networks" took place in Erice. The main subject of the course is clear from the title and consisted mainly of that particular branch of network analysis, which results from applying general concepts of mathematical optimization to the design of geodetic networks. As al­ ways when dealing with optimization problems, there is an a-priori choice of the risk (or gain) function which should be minimized (or maximized) according to the specific interest of the "designer", which might be either of a scientific or of an economic nature or even of both. These aspects have been reviewed in an intro­ ductory lecture in which the particular needs arising in a geodetic context and their analytical representations are examined. Subsequently the main body of the optimization problem, which has been conven­ tionally divided into zero, first, second and third order desi...

  4. The 3rd irradiation test plan of DUPIC fuel

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Myung Seung; Song, K. C.; Park, J. H. and others

    2001-05-01

    The objective of the 3rd irradiation test of DUPIC fuel at the HANARO is to estimate the in-core behaviour of a DUPIC pellet that is irradiated up to more than average burnup of CANDU fuel. The irradiation of DUPIC fuel is planned to start at May 21, 2001, and will be continued at least for 8 months. The burnup of DUPIC fuel through this irradiation test is thought to be more than 7,000 MWd/tHE. The DUPIC irradiation rig instrumented with three SPN detectors will be used to accumulate the experience for the instrumented irradiation and to estimate the burnup of irradiated DUPIC fuel more accurately. Under normal operating condition, the maximum linear power of DUPIC fuel was estimated as 55.06 kW/m, and the centerline temperature of a pellet was calculated as 2510 deg C. In order to assess the integrity of DUPIC fuel under the accident condition postulated at the HANARO, safety analyses on the locked rotor and reactivity insertion accidents were carried out. The maximum centerline temperature of DUPIC fuel was estimated 2590 deg C and 2094 deg C for each accident, respectively. From the results of the safety analysis, the integrity of DUPIC fuel during the HANARO irradiation test will be secured. The irradiated DUPIC fuel will be transported to the IMEF. The post-irradiation examinations are planned to be performed at the PIEF and IMEF.

  5. 3rd CEAS Specialist Conference on Guidance, Navigation and Control

    CERN Document Server

    Drouin, Antoine; Roos, Clément

    2015-01-01

    The two first CEAS (Council of European Aerospace Societies) Specialist Conferences on Guidance, Navigation and Control (CEAS EuroGNC) were held in Munich, Germany in 2011 and in Delft, The Netherlands in 2013. ONERA The French Aerospace Lab, ISAE (Institut Supérieur de l’Aéronautique et de l’Espace) and ENAC (Ecole Nationale de l’Aviation Civile) accepted the challenge of jointly organizing the 3rd edition. The conference aims at promoting new advances in aerospace GNC theory and technologies for enhancing safety, survivability, efficiency, performance, autonomy and intelligence of aerospace systems. It represents a unique forum for communication and information exchange between specialists in the fields of GNC systems design and operation, including air traffic management. This book contains the forty best papers and gives an interesting snapshot of the latest advances over the following topics: l  Control theory, analysis, and design l  Novel navigation, estimation, and tracking methods l  Aircr...

  6. Surface spin-polarized currents generated in topological insulators by circularly polarized synchrotron radiation and their photoelectron spectroscopy indication

    Science.gov (United States)

    Shikin, A. M.; Klimovskikh, I. I.; Filyanina, M. V.; Rybkina, A. A.; Pudikov, D. A.; Kokh, K. A.; Tereshchenko, O. E.

    2016-08-01

    A new method for generating spin-polarized currents in topological insulators has been proposed and investigated. The method is associated with the spin-dependent asymmetry of the generation of holes at the Fermi level for branches of topological surface states with the opposite spin orientation under the circularly polarized synchrotron radiation. The result of the generation of holes is the formation of compensating spin-polarized currents, the value of which is determined by the concentration of the generated holes and depends on the specific features of the electronic and spin structures of the system. The indicator of the formed spin-polarized current can be a shift of the Fermi edge in the photoelectron spectra upon photoexcitation by synchrotron radiation with the opposite circular polarization. The topological insulators with different stoichiometric compositions (Bi1.5Sb0.5Te1.8Se1.2 and PbBi2Se2Te2) have been investigated. It has been found that there is a correlation in the shifts and generated spin-polarized currents with the specific features of the electronic spin structure. Investigations of the graphene/Pt(111) system have demonstrated the possibility of using this method for other systems with a spin-polarized electronic structure.

  7. Bifurcation of limit cycles in 3rd-order Z2 Hamiltonian planar vector fields with 3rd-order perturbations

    Science.gov (United States)

    Yu, Pei; Han, Maoan

    2013-04-01

    In this paper, we show that a Z2-equivariant 3rd-order Hamiltonian planar vector fields with 3rd-order symmetric perturbations can have at least 10 limit cycles. The method combines the general perturbation to the vector field and the perturbation to the Hamiltonian function. The Melnikov function is evaluated near the center of vector field, as well as near homoclinic and heteroclinic orbits.

  8. Solving X-ray protein structures without a crystal: using X-ray Free Electron Laser, the fourth generation synchrotron light sources

    Institute of Scientific and Technical Information of China (English)

    Bo Huang

    2010-01-01

    @@ A synchrotron light source is a source of electromagnetic radiation artificially produced by specialized electron accelerators. Compared to the commonly used in-house X-ray sources, it is wavelength adjustable, much stronger and more focused. In the last two decades, synchrotron usage has become the mainstream for X-ray protein structure determination. Taking the advantage of micro-focus light beams of the third generation synchrotron, the size of a usable protein crystal for data collection decreases to micron level, which increases the rate of macromolecular structure determination to about 10 new protein data bank entries per day.

  9. 3rd International Doctoral Symposium on Applied Computation and Security Systems

    CERN Document Server

    Saeed, Khalid; Cortesi, Agostino; Chaki, Nabendu

    2017-01-01

    This book presents extended versions of papers originally presented and discussed at the 3rd International Doctoral Symposium on Applied Computation and Security Systems (ACSS 2016) held from August 12 to 14, 2016 in Kolkata, India. The symposium was jointly organized by the AGH University of Science & Technology, Cracow, Poland; Ca’ Foscari University, Venice, Italy; and the University of Calcutta, India. The book is divided into two volumes, Volumes 3 and 4, and presents dissertation works in the areas of Image Processing, Biometrics-based Authentication, Soft Computing, Data Mining, Next-Generation Networking and Network Security, Remote Healthcare, Communications, Embedded Systems, Software Engineering and Service Engineering. The first two volumes of the book published the works presented at the ACSS 2015, which was held from May 23 to 25, 2015 in Kolkata, India.

  10. Interviews with Michael Baxandall, February 3rd and 4th, 1994, Berkeley, CA

    Directory of Open Access Journals (Sweden)

    Allan Langdale

    2009-12-01

    Full Text Available The following interviews with Michael Baxandall were conducted in Berkeley on February 3rd and 4th of 1994. The content of these interviews include general responses about developments in art history in the years between 1960 and 1985, a period of dramatic modifications in the discipline. Among the issues are the rise of the social history of art and the sources from anthropology that informed Baxandall’s concept of the ‘Period Eye’. Baxandall talks about his own work, his personal intellectual history, and the scholars of past and current generations who influenced him. Other topics include Baxandall’s professional trajectory, the Warburg Library, and aspects of cultural history having to do with Renaissance Humanism. These interviews first appeared as an appendix to the PhD dissertation by Allan Langdale, Art History and Intellectual History: Michael Baxandall’s Work between 1963 and 1985, U. C. Santa Barbara, 1995.

  11. PREFACE: 3rd International Symposium ''Optics and its Applications''

    Science.gov (United States)

    Calvo, M. L.; Dolganova, I. N.; Gevorgyan, N.; Guzman, A.; Papoyan, A.; Sarkisyan, H.; Yurchenko, S.

    2016-01-01

    The SPIE.FOCUS Armenia: 3rd International Symposium ''Optics and its Applications'' (OPTICS-2015) http://rau.am/optics2015/ was held in Yerevan, Armenia, in the period October 1 - 5, 2015. The symposium was organized by the International Society for Optics and Photonics (SPIE), the Armenian SPIE student chapter with collaboration of the Armenian TC of ICO, the Russian-Armenian University (RAU), the Institute for Physical Research of National Academy of Sciences of Armenia (IPR of NAS), the Greek-Armenian industrial company LT-PYRKAL, and the Yerevan State University (YSU). The Symposium was co-organized by the SPIE & OSA student chapters of BMSTU, the Armenian OSA student chapter, and the SPIE student chapters of Lund University and Wroclaw University of Technology. The symposium OPTICS-2015 was dedicated to the International Year of Light and Light-Based Technologies. OPTICS-2015 was devoted to modern topics and optical technologies such as: optical properties of nanostructures, silicon photonics, quantum optics, singular optics & its applications, laser spectroscopy, strong field optics, biomedical optics, nonlinear & ultrafast optics, photonics & fiber optics, and mathematical methods in optics. OPTICS-2015 was attended by 100 scientists and students representing 17 countries: Armenia, China, Czech Republic, France, Georgia, Germany, India, Iran, Italy, Latvia, Mexico, Poland, Russia, Saudi Arabia, Sweden, Ukraine, and USA. Such a broad international community confirmed the important mission of science to be a uniting force between different countries, religions, and nations. We hope that OPTICS-2015 inspired and motivated students and young scientists to work in optics and in science in general. The present volume of Journal of Physics: Conference Series includes proceedings of the symposium covering various aspects of modern problems in optics. We are grateful to all people who were involved in the organization process. We gratefully acknowledge support from

  12. Exercises in statistics for HA & HA(dat.) & BSc(B), 3rd semester

    DEFF Research Database (Denmark)

    The booklet contains excercises to be used for the tutorials related to the 3rd semester course in statistics on the bachelors progarmme at the Aarhus School of Business.......The booklet contains excercises to be used for the tutorials related to the 3rd semester course in statistics on the bachelors progarmme at the Aarhus School of Business....

  13. Absorbed dose-to-water protocol applied to synchrotron-generated x-rays at very high dose rates

    Science.gov (United States)

    Fournier, P.; Crosbie, J. C.; Cornelius, I.; Berkvens, P.; Donzelli, M.; Clavel, A. H.; Rosenfeld, A. B.; Petasecca, M.; Lerch, M. L. F.; Bräuer-Krisch, E.

    2016-07-01

    Microbeam radiation therapy (MRT) is a new radiation treatment modality in the pre-clinical stage of development at the ID17 Biomedical Beamline of the European synchrotron radiation facility (ESRF) in Grenoble, France. MRT exploits the dose volume effect that is made possible through the spatial fractionation of the high dose rate synchrotron-generated x-ray beam into an array of microbeams. As an important step towards the development of a dosimetry protocol for MRT, we have applied the International Atomic Energy Agency’s TRS 398 absorbed dose-to-water protocol to the synchrotron x-ray beam in the case of the broad beam irradiation geometry (i.e. prior to spatial fractionation into microbeams). The very high dose rates observed here mean the ion recombination correction factor, k s , is the most challenging to quantify of all the necessary corrections to apply for ionization chamber based absolute dosimetry. In the course of this study, we have developed a new method, the so called ‘current ramping’ method, to determine k s for the specific irradiation and filtering conditions typically utilized throughout the development of MRT. Using the new approach we deduced an ion recombination correction factor of 1.047 for the maximum ESRF storage ring current (200 mA) under typical beam spectral filtering conditions in MRT. MRT trials are currently underway with veterinary patients at the ESRF that require additional filtering, and we have estimated a correction factor of 1.025 for these filtration conditions for the same ESRF storage ring current. The protocol described herein provides reference dosimetry data for the associated Treatment Planning System utilized in the current veterinary trials and anticipated future human clinical trials.

  14. Vacuum system design of the third generation synchrotron radiation source PETRA III

    Energy Technology Data Exchange (ETDEWEB)

    Boespflug, R; Boster, J; Giesske, W; Keese, D; Koehler, R; Mildner, N; Nagorny, B; Naujoks, U; Remde, H; Schulz, E; Seidel, M; Tiessen, J; Wedekind, H P; Zapfe, K [Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg (Germany)], E-mail: boris.nagorny@desy.de

    2008-03-01

    Within the next two years the 2.3 km long storage ring PETRA will be rebuild into one of the most brilliant x-ray sources worldwide (PETRA III). The large bending radius and the use of damping wigglers allow to achieve small beam emittances and extremely brilliant x-ray beams. In this paper we describe the design and the expected performance of the vacuum system for the storage ring. It consists of standard arc sections, an experimental octant which is equipped with undulators and several straight sections that include the damping wigglers. Because of the long length of the storage ring a cost effective solution had to be found. Besides the requirement to quickly provide acceptable residual gas pressures the technical challenges of the system include the provision of high thermal stability with respect to magnets and BPM's, and the design of thin walled insertion device chambers as well as high power synchrotron radiation absorbers.

  15. Radiographic findings on 3rd molars removed in 20-year-old men.

    Science.gov (United States)

    Rajasuo, Ari; Peltola, Jaakko; Ventä, Irja; Murtomaa, Heikki

    2003-10-01

    In this study we assess radiographic findings characteristic of mandibular 3rd molars that had required either routine or surgical extraction. X-ray findings relating to acute pericoronitis were also examined. The material was collected by investigating patient records and rotational panoramic radiographs of 20-year-old Finnish male conscripts (n = 738) treated during military service because of 3rd-molar-related problems. The follicle around the crown of mandibular 3rd molars with acute pericoronitis was enlarged in 19% of cases and in 13% of chronic symptom-free pericoronitis cases (not statistically significant difference). Mandibular 3rd molars extracted surgically were more often mesially inclined than those extracted routinely (61% vs. 23%; P pericoronitis [around 27% vs. 39% of the teeth routinely extracted (OR 0.5, 95% CI 0.3-0.8)]. In 86% of cases the space between 2nd molar and ramus of the mandible was narrower than the 3rd molar extracted surgically, whereas this was 62% in routine extraction cases (P < 0.001). We conclude that there are some typical 3rd-molar findings in rotational panoramic radiographs that show a need for surgical extraction.

  16. 3rd International Workshop on Critical Systems Development with UML

    OpenAIRE

    Jan Jürjens; Fernandez, Eduardo B.; Robert France; Bernhard Rumpe

    2017-01-01

    Topics of the Workshop include: --- Applications of UML to real-time systems security-critical systems dependable / safety-critical systems performance-critical systems embedded systems hybrid systems reactive systems --- Extensions of UML (UML-RT, UMLsec, Automotive UML, Embedded UML, ...) and new developments (UML 2.0, MDA) --- Modeling, synthesis, model transformation, code generation, testing, validation, and verification of critical systems using UML --- Aspect-oriented or Component-base...

  17. 3rd International Workshop on Critical Systems Development with UML

    OpenAIRE

    Jan Jürjens; Eduardo B. Fernandez; Robert France; Bernhard Rumpe

    2016-01-01

    Topics of the Workshop include: --- Applications of UML to real-time systems security-critical systems dependable / safety-critical systems performance-critical systems embedded systems hybrid systems reactive systems --- Extensions of UML (UML-RT, UMLsec, Automotive UML, Embedded UML, ...) and new developments (UML 2.0, MDA) --- Modeling, synthesis, model transformation, code generation, testing, validation, and verification of critical systems using UML --- Aspect-oriented or Component-base...

  18. Survey of K-3rd-Grade Teachers' Knowledge of Ear Infections and Willingness to Participate in Prevention Programs

    Science.gov (United States)

    Danhauer, Jeffrey L.; Johnson, Carole E.; Caudle, Abby T.

    2011-01-01

    Purpose: Ear infections are prevalent in kindergarten through 3rd-grade (K-3rd) children and can affect their performance at school. Chewing gum, when administered by parents and teachers, can help prevent ear infections in children. This pilot study surveyed K-3rd-grade teachers in the Santa Barbara School Districts to assess their knowledge…

  19. File list: InP.Lar.50.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

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    Lifescience Database Archive (English)

    Full Text Available Oth.Lar.10.AllAg.3rd_instar dm3 TFs and others Larvae 3rd instar SRX104963,SRX10497...4971,SRX331403 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Oth.Lar.10.AllAg.3rd_instar.bed ...

  10. File list: Oth.Lar.05.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Oth.Lar.05.AllAg.3rd_instar dm3 TFs and others Larvae 3rd instar SRX104964,SRX10496...1403,SRX495243 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Oth.Lar.05.AllAg.3rd_instar.bed ...

  11. File list: ALL.Lar.20.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ALL.Lar.20.AllAg.3rd_instar dm3 All antigens Larvae 3rd instar SRX1038029,SRX103803...SRX013082,SRX467107,SRX016173,SRX215499,SRX495243,SRX013058 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/ALL.Lar.20.AllAg.3rd_instar.bed ...

  12. File list: ALL.Lar.05.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ALL.Lar.05.AllAg.3rd_instar dm3 All antigens Larvae 3rd instar SRX104964,SRX104963,...SRX287718,SRX331401,SRX287658,SRX331366,SRX287906,SRX287678 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/ALL.Lar.05.AllAg.3rd_instar.bed ...

  13. File list: Pol.Lar.10.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Lar.10.AllAg.3rd_instar dm3 RNA polymerase Larvae 3rd instar SRX287908,SRX28790...7,SRX013070,SRX013082 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Pol.Lar.10.AllAg.3rd_instar.bed ...

  14. File list: Unc.Lar.20.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Unc.Lar.20.AllAg.3rd_instar dm3 Unclassified Larvae 3rd instar SRX1038029,SRX103803...1,SRX1038032,SRX1038030,SRX022335,SRX032124,SRX022334,SRX032123,SRX013058 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Unc.Lar.20.AllAg.3rd_instar.bed ...

  15. File list: Pol.Lar.05.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Lar.05.AllAg.3rd_instar dm3 RNA polymerase Larvae 3rd instar SRX287907,SRX28790...8,SRX013070,SRX013082 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Pol.Lar.05.AllAg.3rd_instar.bed ...

  16. File list: Pol.Lar.50.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Lar.50.AllAg.3rd_instar dm3 RNA polymerase Larvae 3rd instar SRX287908,SRX28790...7,SRX013070,SRX013082 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Pol.Lar.50.AllAg.3rd_instar.bed ...

  17. File list: ALL.Lar.50.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ALL.Lar.50.AllAg.3rd_instar dm3 All antigens Larvae 3rd instar SRX1038029,SRX103803...SRX467060,SRX495306,SRX013058 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/ALL.Lar.50.AllAg.3rd_instar.bed ...

  18. File list: Unc.Lar.05.AllAg.3rd_instar [Chip-atlas[Archive

    Lifescience Database Archive (English)

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  19. Visual, Critical, and Scientific Thinking Dispositions in a 3rd Grade Science Classroom

    Science.gov (United States)

    Foss, Stacy

    Many American students leave school without the required 21st century critical thinking skills. This qualitative case study, based on the theoretical concepts of Facione, Arheim, and Vygotsky, explored the development of thinking dispositions through the arts in science on the development of scientific thinking skills when used as a conceptual thinking routine in a rural 3rd grade classroom. Research questions examined the disposition to think critically through the arts in science and focused on the perceptions and experiences of 25 students with the Visual Thinking Strategy (VTS) process. Data were collected from classroom observations (n = 10), student interviews (n = 25), teacher interviews ( n = 1), a focus group discussion (n = 3), and artifacts of student work (n = 25); these data included perceptions of VTS, school culture, and classroom characteristics. An inductive analysis of qualitative data resulted in several emergent themes regarding disposition development and students generating questions while increasing affective motivation. The most prevalent dispositions were open-mindedness, the truth-seeking disposition, the analytical disposition, and the systematicity disposition. The findings about the teachers indicated that VTS questions in science supported "gradual release of responsibility", the internalization of process skills and vocabulary, and argumentation. This case study offers descriptive research that links visual arts inquiry and the development of critical thinking dispositions in science at the elementary level. A science curriculum could be developed, that emphasizes the development of thinking dispositions through the arts in science, which in turn, could impact the professional development of teachers and learning outcomes for students.

  20. Synchrotron generated X-ray Excited Optical Luminescence (XEOL) from Quartz

    Science.gov (United States)

    King, Georgina; Finch, Adrian; Robinson, Ruth

    2010-05-01

    Quartz is the preferred mineral for optically stimulated luminescence (OSL) dating, due to its well constrained behaviour as a radiation dosimeter. However, despite the plethora of successful quartz OSL applications, no solution has been found to the problem that some quartz luminesce more brightly than others, which has limited the application of OSL in certain settings. This has been addressed through examination of the luminescence emission using a variety of excitation techniques and emission spectroscopy. X-ray Excited Optical Luminescence (XEOL) is luminescence excited by x-rays produced by a synchrotron. XEOL analyses were conducted upon a suite of quartz samples at Diamond, Great Britain, which had previously been analysed with Ionoluminescence (IL), at Sussex University. The samples were selected to include quartz of both poor and excellent OSL sensitivities. Therefore, two Scottish glacial outwash samples prepared at St Andrews, and a calibration quartz sample, prepared at the Risø National Laboratory in Denmark were analysed for these properties respectively. The XEOL emission spectra comprised three major emissions at 3.32, 3.81 and 4.05 eV, and one weaker emission at 1.94 eV in all samples. The calibration quartz sample had the most intense emission by an order of magnitude. Throughout increased exposure to x-rays, the intensity of the UV emission reduced, and an increase in the red (1.94 eV) emission was recorded. The derived XEOL spectra complement the IL spectra obtained previously. The IL spectra were dominated by only two broad emissions at 3.2-3.1 eV and 1.8-1.7 eV. However, throughout the IL experiments a dose dependent effect was also observed, whereby the UV emission was depleted to the benefit of the red with increasing exposure. Furthermore the gradient of the power law relationship between the UV and red emission change with dose is similar for both the IL and XEOL data: at -1.15 and -1.05 respectively for calibration quartz, when plotted

  1. 3rd International Conference on Advanced Computing, Networking and Informatics

    CERN Document Server

    Mohapatra, Durga; Chaki, Nabendu

    2016-01-01

    Advanced Computing, Networking and Informatics are three distinct and mutually exclusive disciplines of knowledge with no apparent sharing/overlap among them. However, their convergence is observed in many real world applications, including cyber-security, internet banking, healthcare, sensor networks, cognitive radio, pervasive computing amidst many others. This two volume proceedings explore the combined use of Advanced Computing and Informatics in the next generation wireless networks and security, signal and image processing, ontology and human-computer interfaces (HCI). The two volumes together include 132 scholarly articles, which have been accepted for presentation from over 550 submissions in the Third International Conference on Advanced Computing, Networking and Informatics, 2015, held in Bhubaneswar, India during June 23–25, 2015.

  2. The Role of Training and Promotion to Increase The 3rd Party Funds Indonesian Islamic Banking

    Directory of Open Access Journals (Sweden)

    Rahmat Hidayat

    2014-03-01

    Full Text Available Objective – This study aims to determine whether the role of training is much larger than the promotion in raising third-party funds in Islamic banks in Indonesia given the cost of the training is spent is greater than the cost of promotion. This study empirically examines the relationship and impact of training and promotion to raise funds for a 3rd party in Indonesia Islamic banks.Methods – This study uses secondary data Islamic commercial banks in the form of panel (time-series and cross-section of Bank Indonesia data from 2010 until 2012. There are two independent variables training cost (X1 and promotion cost (X2 and one dependent variable is 3rd-party funds (Y. The analysis technique used path analysis to examine the role of training and the promotion of financial performance (The 3rd Party Funds.Result – Simultaneously, training and promotion gives an effect by 52%, and partially or individual training gives an insignificant negative effect, while the promotion has a significant positive impact on financial performance (financial-party funds on Islamic banking.Conclusion – The role of promotion is higher in raising The 3rd Party Funds than training. Keywords : Cost, Training, Promotion, The 3rd Party Funds 

  3. Estimates of power generated from synchrotron radiation in the HL-LHC experimental insertion regions

    CERN Document Server

    Rossi, Adriana; CERN. Geneva. ATS Department

    2017-01-01

    The power generated in single magnets of the HL-LHC experimental regions is estimated for collision optics HLLHCV1.2 β*=15 cm Round and HLLHCV1.2 Flat. Note that the layout used for the computations presented here is that before the recent change of baseline. These values should serve as input to Monte-Carlo codes (i.e., PHOTON [ ], Synrad [ ] or others), able to calculate the heat load distribution along the machine and in particular the Long Straight Sections (LSS).

  4. A compact and low-weight sputtering unit for in situ investigations of thin film growth at synchrotron radiation beamlines.

    Science.gov (United States)

    Walter, P; Dippel, A-C; Pflaum, K; Wernecke, J; van den Hurk, J; Blume, J; Klemradt, U

    2015-05-01

    In this work, we report on a highly variable, compact, and light high-vacuum sputter deposition unit designed for in situ experiments using synchrotron radiation facilities. The chamber can be mounted at various synchrotron beamlines for scattering experiments in grazing incidence geometry. The sample position and the large exit window allow to perform x-ray experiments up to large q values. The sputtering unit is easy to mount on existing experimental setups and can be remote-controlled. In this paper, we describe in detail the design and the performance of the new sputtering chamber and present the installation of the apparatus at different 3rd generation light sources. Furthermore, we describe the different measurement options and present some selected results. The unit has been successfully commissioned and is now available for users at PETRA III at DESY.

  5. Generating Picosecond X-Ray Pulses with Beam Manipulation in Synchrotron Light Sources

    CERN Document Server

    Guo, Weiming; Harkay, Katherine C; Sajaev, Vadim; Yang Bing Xin

    2005-01-01

    The length of x-ray pulses generated by storage ring light sources is usually tens of picoseconds. For example, the value is 40 ps rms at the Advanced Photon Source (APS). Methods of x-ray pulse compression are of great interest at the APS. One possible method, per Zholents et al., is to tilt the electron bunch with deflecting rf cavities.* Alternately, we found that the electron bunch can develop a tilt after application of a vertical kick in the presence of nonzero chromaticity. After slicing, the x-ray pulse length is determined by the tilt angle and the vertical beam size. In principal, sub-picosecond pulses can be obtained at APS. To date we have observed 6 ps rms visible light pulses with a streak camera. Efforts are underway to attempt further compression of the x-ray pulse and to increase the brilliance. This method can be easily applied to any storage ring light sources to generate x-ray pulses up to two orders of magnitude shorter than the electron bunch length. In this paper, we will present the th...

  6. CHARACTERIZATION OF SALT PARTICLE INDUCED CORROSION PROCESSES BY SYNCHROTRON GENERATED X-RAY FLUORESCENCE AND COMPLEMENTARY SURFACE ANALYSIS TOOLS.

    Energy Technology Data Exchange (ETDEWEB)

    NEUFELD, A.K.; COLE, I.S.; BOND, A.M.; ISAACS, H.S.; FURMAN, S.A.

    2001-03-25

    The benefits of using synchrotron-generated X-rays and X-ray fluorescence analysis in combination with other surface analysis techniques have been demonstrated. In studies of salt-induced corrosion, for example, the detection of Rb ions in the area of secondary spreading when salt-containing micro-droplets are placed on zinc surfaces, further supports a mechanism involving cation transport during the corrosion and spreading of corrosive salt on exposed metal surfaces. Specifically, the new analytical data shows that: (a) cations are transported radially from a primary drop formed from a salt deposit in a thin film of secondary spreading around the drop; (b) subsequently, micro-pools are formed in the area of secondary spreading, and it is likely that cations transported within the thin film accumulate in these micro-pools until the area is dehydrated; (c) the mechanism of cation transport into the area of secondary spreading does not include transport of the anions; and (d) hydroxide is the counter ion formed from oxygen reduction at the metal surface within the spreading layer. Data relevant to iron corrosion is also presented and the distinct differences relative to the zinc situation are discussed.

  7. First diffraction topographic results at a third generation synchrotron radiation facility: application to crystals under an electric field

    Energy Technology Data Exchange (ETDEWEB)

    Rejmankova, P. [European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex (France); Baruchel, J. [European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex (France)

    1995-05-01

    Diffraction topographic techniques allow the observation of inhomogeneities (defects, domains,..) within a single crystal. The unique capabilities of third generation synchrotron radiation facilities, like the ESRF, add new possibilities to these techniques: (1) the exposure time to record a topograph can be reduced to similar 10{sup -2} s, i.e. a factor 10{sup 2}-10{sup 3} below the present standards; (2) an improved resolution associated with the small source size, even when setting the film far ( similar 60 cm) from the sample, allows the size of the sample environment devices to be increased; (3) high sensitivity to small ({>=}10{sup -7}) distortions (misorientations and/or lattice parameter variations); (4) investigation of thick or heavy materials, which were up to now the exclusive field of neutron diffraction. We briefly describe the future Topography and High Resolution Diffraction beamline ID 19, which is designed to optimize the required experimental conditions, and which will be operational at the end of 1995. The first topographic white beam experiments which illustrate these new possibilities were carried out on two (ID11 and D5) of the presently operational beamlines of the ESRF. In this work, particular attention is dedicated to observations performed on crystals under an electric field ({alpha}-LiIO{sub 3}, KTP, LiNbO{sub 3}). Very interesting and encouraging results were obtained, particularly when using ``section`` topography. (orig.).

  8. Macro economic analysis related to the approach of 3rd generation university in TurkeyTürkiye’de 3. nesil üniversite yaklaşımına ilişkin makro ekonomik çözümlemeler

    Directory of Open Access Journals (Sweden)

    Deniz Züngün

    2016-12-01

    Full Text Available Increased competition caused by globalization has led to philosophical changes in private and public businesses. This change has affected educational institutions and they have needed dynamic, innovator and transformational tools in order to survive in competitive environment. The universities defined as “3rd GU” need commercialization, network among universities, close co-operation among institutions and entrepreneurship as well as intellectual and innovative changes. In this regard, the aim of the research is formed by the analysis of “Entrepreneur University” concept from the perspective of the academicians that served at managerial positions at the universities in Turkey and the discussion of these universities’ economical situation for being ready about 3GU concept. In line with these purposes, we will give place to ideas of 283 academicians served in Turkish universities and then we will try to analyze in macro-economic dimension for comparing to their expectations and the truth that’s happen in real life. Although there are 183 universities depending on The Council of Higher Education in Turkey, the number of universities used in our study has been limited by randomly chosen 18 universities for forming an appropriate conceptual framework.   Özet Küreselleşme ile gelen artan rekabet özel ve kamu işletmelerinde felsefi değişimlere neden olmuştur. Bu değişim eğitim kurumlarını da etkilemiş ve bunlar rekabet ortamında ayakta kalabilmek için dinamik, yenilikçi ve dönüşümsel araçlara ihtiyaç duymuştur. “3. Nesil Üniversite” olarak tanımlanan üniversiteler düşünsel ve inovatif dönüşümlerin yanında ticarileşme, ekonomik olarak bağımsızlığını kazanma, üniversiteler arası network, kurumlar arası yüksek işbirliği ve girişimciliğe ihtiyaç duymaktadır. Bu bağlamda ortaya çıkan “Girişimci Üniversite” kavramının Türkiye’deki üniversitelerde yönetici olmu

  9. Collaborative study for the establishment of the 3rd international standard for neomycin.

    Science.gov (United States)

    Rautmann, G; Daas, A; Buchheit, K-H

    2013-01-01

    An international collaborative study was organised to establish the World Health Organization (WHO) 3(rd) International Standard (IS) for neomycin. Ten laboratories from different countries participated in the collaborative study. The potency of the candidate material, a freeze-dried preparation, was estimated by microbiological assays with sensitive micro-organisms. To ensure continuity between consecutive batches, the 2(nd) IS for neomycin was used as a standard. Based on the results of the study, the 3(rd) IS for neomycin was adopted at the meeting of the WHO Expert Committee on Biological Standardization (ECBS) in 2012 with an assigned potency of 19,050 IU per vial. The 3(rd) IS for neomycin is available from the European Directorate for the Quality of Medicines & HealthCare (EDQM).

  10. Transverse coherence properties of X-ray beams in third-generation synchrotron radiation sources

    CERN Document Server

    Geloni, Gianluca; Schneidmiller, Evgeni; Yurkov, Mikhail

    2008-01-01

    This article describes a complete theory of spatial coherence for undulator radiation sources. Current estimations of coherence properties often assume that undulator sources are quasi-homogeneous, like thermal sources, and rely on the application of the van Cittert-Zernike theorem for calculating the degree of transverse coherence. Such assumption is not adequate when treating third generation light sources, because the vertical(geometrical) emittance of the electron beam is comparable or even much smaller than the radiation wavelength in a very wide spectral interval that spans over four orders of magnitude (from 0.1 Angstrom up to 10^3 Angstrom). Sometimes, the so-called Gaussian-Schell model, that is widely used in statistical optics in the description of partially-coherent sources, is applied as an alternative to the quasi-homogeneous model. However, as we will demonstrate, this model fails to properly describe coherent properties of X-ray beams from non-homogeneous undulator sources. As a result, a more...

  11. The 3rd International Conference on Continental Earthquakes, Mechanism, Prediction, Emergency Management & Insurance

    Institute of Scientific and Technical Information of China (English)

    Dr.HuangJing

    2004-01-01

    The 3rd International Conference on Continental Earthquakes, Mechanism, Prediction, Emergency Management & Insurance (the 3rd ICCE) was held on July 9-14, 2004 in Beijing, China. The ICCE has been held every decade since it was launched over twenty years ago. The first ICCE, with the title """"International Symposium on Continental Seismicity and Earthquake Prediction""""(ISCSEP), had international sponsorship and was supported by e.g., UNESCO and hosted by the Seismological Society of China (SSC)in Beijing in 1982. In 1992 in response to the initiatives from the UN's International Decade for Natural Disaster Reduction (IDNDR),

  12. Litigating for change: proceedings from the 3rd Symposium on HIV, Law and Human Rights. Introduction.

    Science.gov (United States)

    2011-10-01

    From 9-10 June 2011, the 3rd Symposium on HIV, Law and Human Rights took place in Toronto, drawing over 150 participants from across Canada. The event built on the success of the two previous Symposia and brought together policymakers, legal professionals, health researchers, students, activists, community organizations and people living with HIV or from communities particularly affected by HIV.

  13. Guangxi Pingguo Aluminum Alumina 3rd Phase Project to Put Into Production

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>In April,the handover ceremony was held for the first completed sub-project of the 3rd phase of 900,000-ton alumina project of China Alu- minum Guangxi Company (Pingguo Aluminum in short),standing for the commencement of

  14. The 3rd World Integrative Medicine Congress Was Held in Guangzhou

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ The 3rd World Integrative Medicine Congress was held in Guangzhou,China,from September 22 to 24,2007,sponsored by the Chinese Association of the Integrative Medicine and co-organized by Guangdong Provincial Hospital of Chinese Medicine,Guangdong Integrative Medicine Association and Guangdong Provincial Academy of Chinese Medical Sciences.

  15. Time use of Hellene 3rd and 4th graders during a school day

    NARCIS (Netherlands)

    Vleioras, Georgios

    2010-01-01

    Using data from the time diaries of 164 Hellene 3rd and 4th graders interviewed in their homes in March 2007, individual differences in time-use patterns were investigated. The participants rested for 9 hours 10 minutes, and spent 57.0%, 21.7%, and 5.0% of their waking time on school-related

  16. A 3rd Order Low Power Switched Current Sigma-Delta Modulator

    DEFF Research Database (Denmark)

    Jørgensen, Ivan Herald Holger; Bogason, Gudmundur

    1996-01-01

    This paper presents a 3rd order switched current Sigma-Delta modulator. The Sigma-Delta modulator operates at a sampling rate of 600kHz and the signal band is 5.5kHz, i.e. an oversampling factor of 54.5 is used. Multiple input signals are used to reduce the internal signal swings which results...

  17. Summary of the 3rd LHC Crab Cavity Workshop (LHC-CC09)

    CERN Document Server

    Zimmermann, Frank; Koutchouk, Jean-Pierre; Delayen, Jean; Pierini, Paolo; Ciapala, Edmond; McIntosh, Peter; Giovannozzi, Massimo; Brüning, Oliver; Collier, Paul; Funakoshi, Yoshihiro

    2010-01-01

    The 3rd workshop on crab compensation for the LHC luminosity upgrade (LHC-CC09) was held September 16-18, 2008 at CERN, Geneva, Switzerland. The workshop was organized by joint collaboration of CERN, EUCARD, KEK and US-LARP. Approximately 50 workshop participants from 3 continents and several institutions discussed the future strategy of implementing crab cavities in the LHC

  18. Time use of Hellene 3rd and 4th graders during a school day

    NARCIS (Netherlands)

    Vleioras, Georgios

    2010-01-01

    Using data from the time diaries of 164 Hellene 3rd and 4th graders interviewed in their homes in March 2007, individual differences in time-use patterns were investigated. The participants rested for 9 hours 10 minutes, and spent 57.0%, 21.7%, and 5.0% of their waking time on school-related activit

  19. Time use of Hellene 3rd and 4th graders during a school day

    NARCIS (Netherlands)

    Vleioras, Georgios

    2010-01-01

    Using data from the time diaries of 164 Hellene 3rd and 4th graders interviewed in their homes in March 2007, individual differences in time-use patterns were investigated. The participants rested for 9 hours 10 minutes, and spent 57.0%, 21.7%, and 5.0% of their waking time on school-related activit

  20. The 3rd China Standardization Forum Held in Urumqi, Xinjiang Uygur Autonomous Region

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ On Aug. 14th-15th, the 3rd China Standardization Forum, hosted by Standardization Administration of China(SAC), sponsored by China Association for Standardization (CAS) and associated by the Bureau of Quality &Technical Supervision of Xinjiang Uygur Autonomous Region of the People's Republic of China, was held in Urumqi, Xinjiang.

  1. A Celebration for Chinese Auto Elite——The 3rd China International Bus Competition

    Institute of Scientific and Technical Information of China (English)

    Li Yinghong; Sun Yongjian

    2007-01-01

    @@ The awarding ceremony of the 3rd China International Bus Competition (CIBC) was held in Beijing on April 18, 2007. The competition was jointly sponsored by the Urban Vehicle Expert Committee of the Scientific and Technology Committee, the Ministry of Construction, China Highway Academy Passenger Car Branch, China Road Transportation Association, China Urban Traffic Association and China Travel Vehicle and Ship Association.

  2. Using Food as a Tool to Teach Science to 3rd Grade Students in Appalachian Ohio

    Science.gov (United States)

    Duffrin, Melani W.; Hovland, Jana; Carraway-Stage, Virginia; McLeod, Sara; Duffrin, Christopher; Phillips, Sharon; Rivera, David; Saum, Diana; Johanson, George; Graham, Annette; Lee, Tammy; Bosse, Michael; Berryman, Darlene

    2010-01-01

    The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. In 2007 to 2008, a foods curriculum developed by professionals in nutrition and education was implemented in 10 3rd-grade classrooms in Appalachian Ohio; teachers in these…

  3. Participants to the 3rd HEP Information Resources Summit, 6-7 May 2009

    CERN Multimedia

    Fermilab, Photo Service

    2009-01-01

    The broad theme of the 3rd HEP Information Resources Summit was "Collaboration between Information Services." As HEP increasingly borders fields such as instrumentation and astrophysics, it was discussed what potential interrelationships and communication this group have to serve this broader research community seamlessly.

  4. Starting Young: Massachusetts Birth-3rd Grade Policies That Support Children's Literacy Development

    Science.gov (United States)

    Cook, Shayna; Bornfreund, Laura

    2015-01-01

    Massachusetts is one of a handful of states that is often recognized as a leader in public education, and for good reason. The Commonwealth consistently outperforms most states on national reading and math tests and often leads the pack in education innovations. "Starting Young: Massachusetts Birth-3rd Grade Policies that Support Children's…

  5. Hard X-ray in-line outline imaging for blood vessels: first generation synchrotron radiation without contrast agents in vitro

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Objective: Phase-contrast X-ray imaging which reduces radiation exposure, is a promising technique for observing the inner structures of biological soft tissues without the aid of contrast agents.The present study intends to depict blood vessels of rabbits and human livers with hard X-ray in-line out line imaging without contrast agents using synchrotron radiation. Methods: All samples were fixed with formalin and sliced into 6 mm sections. The imaging experiments were performed with Fuji-IX80 films on the 4W1A light beam of the first generation synchrotron radiation in Beijing, China. The device of the ex periment, which supplies a maximum light spot size of 20× 10 mm was similar to that of in-line holography. The photon energy was set at 8 KeV and high quality imagines were obtained by altering the distance between the sample and the film. Results: The trees of rabbit-liver blood vessels and the curved vessels of the cirrhotic human liver were revealed on the images, where vessels < 20 μm in diameter were differentiated. Conclusion: These results show that the blood vessels of liver samples can be revealed by using hard X-ray in-line outline imaging with the first generation synchrotron radiation without contrast agents.

  6. The loss of student idealism in the 3rd-year clinical clerkships.

    Science.gov (United States)

    Griffith, C H; Wilson, J F

    2001-03-01

    The purpose of this study was to specify how student attitudes toward different types of patients and the profession change during clinical rotations. A questionnaire was given to all medical students prior to 3rd-year rotations regarding their attitudes toward the medical profession and patient types. It was given again after students completed their 16-week medicine-surgery clerkship. Eighty-eight of 96 students responded to pre- and posttests. Students became less idealistic toward two patient groups: the elderly and people with chronic pain. After clerkship, students believed a greater percentage of the elderly were demented (26% increasing to 35%, p = .09 and that a greater percentage of patients with chronic pain are drug seekers (15% increasing to 24%, p = .004). The authors conclude that in the 3rd year of medical school students become less idealistic toward elderly patients, those with chronic pain, and the profession.

  7. Conference report: the 3rd Global CRO Council for Bioanalysis at the International Reid Bioanalytical Forum.

    Science.gov (United States)

    Breda, Massimo; Garofolo, Fabio; Caturla, Maria Cruz; Couerbe, Philippe; Maltas, John; White, Peter; Struwe, Petra; Sangster, Timothy; Riches, Suzanne; Hillier, Jim; Garofolo, Wei; Zimmerman, Thomas; Pawula, Maria; Collins, Eileen; Schoutsen, Dick; Wieling, Jaap; Green, Rachel; Houghton, Richard; Jeanbaptiste, Bernard; Claassen, Quinton; Harter, Tammy; Seymour, Mark

    2011-12-01

    The 3rd Global CRO Council Closed Forum was held on the 3rd and 4th July 2011 in Guildford, United Kingdom, in conjunction with the 19th International Reid Bioanalytical Forum. In attendance were 21 senior-level representatives from 19 CROs on behalf of nine European countries and, for many of the attendees, this occasion was the first time that they had participated in a GCC meeting. Therefore, this closed forum was an opportunity to increase awareness of the aim of the GCC and how it works, share information about bioanalytical regulations and audit findings from different agencies, their policies and procedures and also to discuss some topics of interest and aim to develop ideas and provide recommendations for bioanalytical practices at future GCC meetings in Europe.

  8. [Complications of multiple pregnancy in the 2nd and 3rd trimesters].

    Science.gov (United States)

    Poniedziałek-Czajkowska, E; Leszczyńska-Gorzelak, B; Oleszczuk, J

    2000-11-01

    Multiple pregnancy contributes to higher maternal and fetal risks than a single one. Complications typical only for multiple pregnancy such as PROM with preterm delivery, intrauterine death or IUGR of one of twins can occur during 2nd and 3rd trimester. Treatment in such situations is usually difficult and often controversial because of simultaneous presence of an alive and/or healthy fetus and possible risk for mother. The paper presents such situations and possible ways of treatment.

  9. 3rd Workshop on Semantic Ambient Media Experience (SAME) - In Conjunction with AmI-2010

    Science.gov (United States)

    Lugmayr, Artur; Stockleben, Bjoern; Kaario, Juha; Pogorelc, Bogdan; Risse, Thomas

    The SAME workshop takes place for the 3rd time in 2010, and it's theme in this year was creating the business value-creation, vision, media theories and technology for ambient media. SAME differs from other workshops due to its interactive and creative touch and going beyond simple powerpoint presentations. Several results will be published by AMEA - the AMbient Media Association (www.ambientmediaassociation.org.

  10. Meet Cambodia's Needs——The 3rd China Auto International Exhibition Tour

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    @@ The 3rd China Auto International Exhibition Tour in 2005 gathered 39 well-known Chinese home brands,traveled across the Indo-China Peninsula and finally arrived at Phnom Penh,the capital of Cambodia.The Chinese automobiles got warm welcome from the local people due to the low price and good quality of the Chinese automobiles and living standard of this developing country.

  11. Insights from the 3rd World Congress on Integrated Computational Materials Engineering

    Science.gov (United States)

    Howe, D.; Goodlet, B.; Weaver, J.; Spanos, G.

    2016-05-01

    The 3rd World Congress on Integrated Computational Materials Engineering (ICME) was a forum for presenting the "state-of-the-art" in the ICME discipline, as well as for charting a path for future community efforts. The event concluded with in an interactive panel-led discussion that addressed such topics as integrating efforts between experimental and computational scientists, uncertainty quantification, and identifying the greatest challenges for future workforce preparation. This article is a summary of this discussion and the thoughts presented.

  12. Risk factors for 3rd and 4th degree perineal tear.

    Science.gov (United States)

    Eskandar, O; Shet, D

    2009-02-01

    We reviewed 3,038 deliveries at our hospital, over a period of 2 years (2005 and 2006) to identify risk factors for 3rd and 4th degree perineal tear. We used the hospital database and labour ward registry book and reviewed patients' record notes. After excluding elective and emergency caesarean sections, 2,278 women had delivered vaginally, from which 36 patients had 3rd/4th degree perineal tears as defined by the RCOG Green top guidelines No 29 (2007). A total of 2,242 women who delivered vaginally without 3rd/4th degree perineal tears were used as controls in this study. The rate of 3rd/4th degree perineal tear was 1.18% for all deliveries and 1.58% for vaginal deliveries. Occiptoposterior position during delivery (OR: 69.8), primigravida (OR: 5.8), and high birth weight (OR: 1.19) are risk factors for anal sphincter tear. However, induction of labour (OR: 0.71), use of medio-lateral episiotomy (OR: 0.35), epidural analgesia (OR: 0.88) and instrumental delivery of occipitoanterior position (OR: 0.77) reduced the risk of severe perineal tear. Primipara and occipitoposterior position (OP) during delivery are the only statistically significant risks for the occurrence of severe perineal damage. High birth weight is a risk factor but it is not statistically significant. Instrumental delivery of OP position is a highly statistically significant risk factor. On the other hand, induction of labour (IOL), epidural analgesia and instrumental delivery for occipitoanterior position are protective factors against anal sphincter injury, although they did not reach statistical significance.

  13. Semi-active model predictive control for 3rd generation benchmark problem using smart dampers

    Institute of Scientific and Technical Information of China (English)

    Yan Guiyun; Sun Bingnan; Lü Yanping

    2007-01-01

    A semi-active strategy for model predictive control (MPC), in which magneto-rheological dampers are used as an actuator, is presented for use in reducing the nonlinear seismic response of high-rise buildings. A multi-step predictive model is developed to estimate the seismic performance of high-rise buildings, taking into account of the effects of nonlinearity, time-variability, model mismatching, and disturbances and uncertainty of controlled system parameters by the predicted error feedback in the multi-step predictive model. Based on the predictive model, a Kalman-Bucy observer suitable for semi-active strategy is proposed to estimate the state vector from the acceleration and semi-active control force feedback.The main advantage of the proposed strategy is its inherent stability, simplicity, on-line real-time operation, and the ability to handle nonlinearity, uncertainty, and time-variability properties of structures. Numerical simulation of the nonlinear seismic responses of a controlled 20-story benchmark building is carried out, and the simulation results are compared to those of other control systems. The results show that the developed semi-active strategy can efficiently reduce the nonlinear seismic response of high-rise buildings.

  14. Gravity-Gradient Subtraction in 3rd Generation Underground Gravitational-Wave Detectors in Homogeneous Media

    CERN Document Server

    Harms, Jan; Dorsher, Steven; Mandic, Vuk

    2009-01-01

    In this paper, we develop a new approach to gravity-gradient noise subtraction for underground gravitational-wave detectors in homogeneous rock. The method is based on spatial harmonic expansions of seismic fields. It is shown that gravity-gradient noise produced by seismic fields from distant sources, stationary or non-stationary, can be calculated from seismic data measured locally at the test mass. Furthermore, the formula is applied to seismic fields from stationary local sources. It is found that gravity gradients from these fields can be subtracted using local seismic measurements. The results are confirmed numerically with a finite-element simulation. A new seismic-array design is proposed that provides the additional information about the seismic field required to ensure applicability of the approach to realistic scenarios even with inhomogeneous rock and non-stationary local sources.

  15. HARDROC3, a 3rd generation ASIC with zero suppress for ILC Semi Digital Hadronic Calorimeter

    Science.gov (United States)

    Dulucq, F.; Callier, S.; de La Taille, C.; Martin-Chassard, G.; Seguin-Moreau, N.; Zoccarato, Y.

    2017-02-01

    HARDROC is the front end chip designed to read out the Resistive Plate Chambers foreseen for the Digital HAdronic CALorimeter (DHCAL) of the future International Linear Collider. The very fine granularity of the calorimeter implies thousands of electronics channels per cubic meter which is a new feature of "imaging" calorimetry. Moreover, for compactness, chips must be embedded inside the detector making crucial the reduction of the power consumption down to 12 μ W per channel. This is achieved using power-pulsing and online zero-suppression. Around 800 HARDROC3 were produced in 2015. The overall performance and production tests will be detailed.

  16. Design and Experimental Evaluation of a 3rd Generation Addressable CMOS Piezoresistive Stress Sensing Test Chip

    Energy Technology Data Exchange (ETDEWEB)

    Sweet, J.N.; Peterson, D.W.; Hsia, A.H.

    1999-04-13

    Piezoresistive stress sensing chips have been used extensively for measurement of assembly related die surface stresses. Although many experiments can be performed with resistive structures which are directly bonded, for extensive stress mapping it is necessary to have a large number of sensor cells which can be addressed using CMOS logic circuitry. Our previous test chip, the ATC04, has 100 cells, each approximately 0.012 in. on a side, on a chip with a side dimension of 0.45 in. When a cell resistor is addressed, it is connected to a four terminal measurement bus through CMOS transmission gates. In theory, the gate resistances do not affect the measurement. In practice, there may be subtle effects which appear when very high accuracy is required. At high temperatures, gate leakage can increase to a point at which the resistor measurement becomes inaccurate. For ATC04 this occurred at or above 50 C. Here, we report on the first measurements obtained with a new prototype test chip, the ATC06. This prototype was fabricated in a 0.5 micron feature size silicided CMOS process using the MOSIS prototyping facility. The cell size was approximately 0.004 in. on a side. In order to achieve piezoresistive behavior for the implanted resistors it was necessary to employ a non-standard silicide ''blocking'' process. The stress sensitivity of both implanted and polysilicon blocked resistors is discussed. Using a new design strategy for the CMOS logic, it was possible to achieve a design in which only 5 signals had to be routed to a cell for addressing vs. 9 for ATC04. With our new design, the resistor under test is more effectively electrically isolated from other resistors on the chip, thereby improving high temperature performance. We present data showing operation up to 140 C.

  17. Theoretical Efficiency of 3rd Generation Solar Cells: Comparison between Carrier Multiplication and Down-Conversion

    Science.gov (United States)

    2012-01-01

    p-n junction solar cells, Journal of Applied Physics 32 (1961) 510–519. [2] C.H. Henry, Limiting efficiencies of ideal single and multiple energy gap...terrestrial solar cells, Journal of Applied Physics 51 (1980) 4494–4500. [3] M. Wolf, Limitations and possibilities for improvement of photovoltaic...multiplication absorbers, Journal of Applied Physics 100 (2006) 074510–074517. [6] J.A. Mcquire, J. Joo, J.M. Pietryga, R.D. Schaller, V.I. Klimov

  18. Efficient Conversion of Carbon Dioxide into Methane using 3rd Generation Ionic Liquids Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This work directly addresses a technology of interest listed in Section 9, sub-section H1.01 In-Situ Resource Utilization, specifically "Highly efficient reactors...

  19. Near-field optical study of 3rd order nonlinear properties of amorphous silicon

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Yun Jin; Park, J.H.; Kim, M.R.; Jhe, Won Ho [Seoul National University, Seoul (Korea, Republic of); Rhee, B.K. [Sogang University, Seoul (Korea, Republic of)

    1999-07-01

    The 3rd order nonlinear properties show optical bleaching (Saturation) and Reverse saturation in absorption aspect, whereas self-focusing and self-defocusing in refraction aspect. Optical bleaching and self-focusing phenomena of those properties in particular can be useful to make the optical beam spot size smaller for application on the higher optical storage density. In this experiment, amorphous silicon layer is used to investigate the effect of 3rd order nonlinear material(1) on the spot size. The amorphous silicon (A-Si) layer is deposited by the method of PECVD on the corning 1737 fusion glass and its thickness is 300 nm. Two experiments are carried out in this work. One is the far-field Z-Scan and the other is the near-field Z-scan where the laser beam spot is scanned by NSOM in the near field region of the material. The former is for investigating the general 3rd order nonlinear properties of amorphous silicon and the latter is for measuring the change of the beam spot size directly. The far-field Z-scan shows Reverse saturation (Im{chi}{sup (3)} {approx} 8 X 10{sup -3} esu) and self-focusing (Re{chi}{sup (3)} {approx} 2 X 10{sup -2} esu) properties for the A-Si layer. In the second experiment, we present the change the beam spot size as a function of the input beam intensity for the A-Si layer. As a result, we find that the stronger the input beam intensity is, the smaller a beam spot size is obtained for A-Si layer. (author)

  20. 3rd International Conference on Computer Science, Applied Mathematics and Applications

    CERN Document Server

    Nguyen, Ngoc; Do, Tien

    2015-01-01

    This volume contains the extended versions of papers presented at the 3rd International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA 2015) held on 11-13 May, 2015 in Metz, France. The book contains 5 parts: 1. Mathematical programming and optimization: theory, methods and software, Operational research and decision making, Machine learning, data security, and bioinformatics, Knowledge information system, Software engineering. All chapters in the book discuss theoretical and algorithmic as well as practical issues connected with computation methods & optimization methods for knowledge engineering and machine learning techniques.  

  1. 3rd International Conference on Modelling, Computation and Optimization in Information Systems and Management Sciences

    CERN Document Server

    Dinh, Tao; Nguyen, Ngoc

    2015-01-01

    This proceedings set contains 85 selected full papers presented at the 3rd International Conference on Modelling, Computation and Optimization in Information Systems and Management Sciences - MCO 2015, held on May 11–13, 2015 at Lorraine University, France. The present part I of the 2 volume set includes articles devoted to Combinatorial optimization and applications, DC programming and DCA: thirty years of Developments, Dynamic Optimization, Modelling and Optimization in financial engineering, Multiobjective programming, Numerical Optimization, Spline Approximation and Optimization, as well as Variational Principles and Applications

  2. Resonance-like nuclear processes in solids: 3rd and 4th order processes

    CERN Document Server

    Kálmán, Péter

    2013-01-01

    It is recognized that in the family of heavy charged particle and electron assisted double nuclear processes resonance-like behavior can appear. The transition rates of the heavy particle assisted 3rd-order and electron assisted 4th-order resonance like double nuclear processes are determined. The power of low energy nuclear reactions in $Ni-H$ systems formed in $Ni$ placed in $H_{2}$ gas environment is treated. Nuclear power produced by quasi-resonant electron assisted double nuclear processes in these $Ni-H$ systems is calculated. The power obtained tallies with experiments and its magnitude is considerable for practical applications.

  3. The 3rd International Meeting on Gene Therapy in Rheumatology and Orthopaedics

    Science.gov (United States)

    Evans, Christopher H; Ghivizzani, Steven C; Gouze, Elvire; Rediske, John J; Schwarz, Edward M; Robbins, Paul D

    2005-01-01

    The 3rd International Meeting on Gene Therapy in Rheumatology and Orthopaedics was held in Boston, Massachusetts, USA in May 2004. Keystone lectures delivered by Drs Joseph Glorioso and Inder Verma provided comprehensive, up-to-date information on all major virus vectors. Other invited speakers covered the application of gene therapy to treatment of arthritis, including the latest clinical trial in rheumatoid arthritis, as well as lupus and Sjögren's syndrome. Applications in mesenchymal stem cell biology, tissue repair, and regenerative medicine were also addressed. The field has advanced considerably since the previous meeting in this series, and further clinical trials seem likely. PMID:16277703

  4. Preface to Special Topic: Invited Papers of the 3rd International Conference on Ultrafast Structural Dynamics.

    Science.gov (United States)

    Johnson, S L

    2016-03-01

    The ability to visualize the real-time dynamics of atomic, magnetic, and electronic structure is widely recognized in many fields as a key element underpinning many important processes in chemistry, materials science, and biology. The need for an improved understanding of such processes becomes acute as energy conversion processes on fast time scales become increasingly relevant to problems in science and technology. This special issue, containing invited papers from participants at the 3rd International Conference on Ultrafast Structural Dynamics held June 10-12, 2015 in Zurich, Switzerland, discusses several recent developments in this area.

  5. Preliminary Location Accuracy Assessments of 3rd Satellite of TH-1

    OpenAIRE

    2016-01-01

    The TH-1 satellite is the first stereo mapping transmission satellite in China, and the primary mission goal of the satellite is for topographic mapping at 1:50 000 scale and high-accuracy location without Ground Control Points (GCPs). 1st, 2nd satellites of TH-1 were launched on August 24, 2010, May 6, 2012, and 3rd satellite was launched on October 26, 2015. Now, three satellites of TH-1 are well operating on its orbit. After evaluation, the location accuracy of 1st satellite without GCPs i...

  6. Virtual Visit to the ATLAS Control Room by 3rd Gymnasium in Volos

    CERN Multimedia

    2013-01-01

    The city of Volos, situated at the centre of the Greek mainland, will be hosting the 7th International Olympiad on Astronomy and Astrophysics this summer. In this context, and with support of PATHWAY and Discover the COSMOS projects, Volos` science education community is organising several pre-events aimed at bringing the world`s biggest experiments in science closer to students - the scientists of tomorrow. Junior high school students from the 3rd Gymnasium in Volos will have the unique opportunity to visit the ATLAS control room on 29th of March.

  7. Field trip guidebook : 3rd international meeting of fire effects on soil properties

    OpenAIRE

    Gonçalves, António Bento; Vieira, António; Leite, Flora Ferreira; Lourenço, Luciano; Botelho, Hermínio; Fernandes, Paulo [UNESP; Úbeda, Xavier; Cerdà, Artémio

    2011-01-01

    The present document is intended to be an auxiliary working instrument for the field trip to the northwest mountains of Portugal, organized during the 3rd International Meeting of Fire Effects on Soil Properties by the Núcleo Investigação em Geografia e Planeamento da Universidade do Minho, with the collaboration of the Centro de Estudos de Geografia e Ordenamento do Território, scheduled for March 15-19, 2011, in the city of Guimarães (Portugal). The trip is programmed for 17 March 2011 a...

  8. Preface to Special Topic: Invited Papers of the 3rd International Conference on Ultrafast Structural Dynamics

    Directory of Open Access Journals (Sweden)

    S. L. Johnson

    2016-03-01

    Full Text Available The ability to visualize the real-time dynamics of atomic, magnetic, and electronic structure is widely recognized in many fields as a key element underpinning many important processes in chemistry, materials science, and biology. The need for an improved understanding of such processes becomes acute as energy conversion processes on fast time scales become increasingly relevant to problems in science and technology. This special issue, containing invited papers from participants at the 3rd International Conference on Ultrafast Structural Dynamics held June 10–12, 2015 in Zurich, Switzerland, discusses several recent developments in this area.

  9. 3rd International Symposium on Big Data and Cloud Computing Challenges

    CERN Document Server

    Neelanarayanan, V

    2016-01-01

    This proceedings volume contains selected papers that were presented in the 3rd International Symposium on Big data and Cloud Computing Challenges, 2016 held at VIT University, India on March 10 and 11. New research issues, challenges and opportunities shaping the future agenda in the field of Big Data and Cloud Computing are identified and presented throughout the book, which is intended for researchers, scholars, students, software developers and practitioners working at the forefront in their field. This book acts as a platform for exchanging ideas, setting questions for discussion, and sharing the experience in Big Data and Cloud Computing domain.

  10. 3rd IFToMM Symposium on Mechanism Design for Robotics

    CERN Document Server

    Ceccarelli, Marco

    2015-01-01

    This volume contains the Proceedings of the 3rd IFToMM Symposium on Mechanism Design for Robotics, held in Aalborg, Denmark, 2-4 June, 2015. The book contains papers on recent advances in the design of mechanisms and their robotic applications. It treats the following topics: mechanism design, mechanics of robots, parallel manipulators, actuators and their control, linkage and industrial manipulators, innovative mechanisms/robots and their applications, among others. The book can be used by researchers and engineers in the relevant areas of mechanisms, machines and robotics.

  11. CELEBRATION OF DECEMBER 3RD, INTERNATIONAL DAY OF PERSONS WITH DISABILITIES

    Directory of Open Access Journals (Sweden)

    Maja FILIPOVSKA

    2017-03-01

    Full Text Available On December 2nd 2016 in the main amphitheater at the Faculty of Philosophy in Skopje, was held the celebration of December 3rd, the International Day of Persons with Disabilities, in organization of the Institute of Special Education and Rehabilitation. The official part of the program was started with a speech by Goran Ajdinski, PhD, the Dean of the Faculty of Philosophy in Skopje. The guests at the celebration were also greeted by the Rector of the University “Ss. Cyril and Methodius” – Skopje, Nikola Jankulovski, PhD and the Minister of Labor and Social Policy of Republic of Macedonia, Frosina Tashevska-Remenski, PhD. After the speeches, which highlighted the current efforts and future commitment to inclusion and accessibility of persons with disabilities, two awards were presented by the Humanitarian foundation “Prof. d-r Ljupco Ajdinski”. The first award was given to Simona Kostadinova as the student with achieved highest grade point average of 9.65 in the generation 2011/12 during the studies of Special education and rehabilitation. The second award was intended for the highest ranked student at the university admission in 2016/2017. This award belonged to Nadica Gjerasimova who had 97.70 points on the official rank list. Beside the awards, two acknowledgements for humanity were also given by the Foundation “Prof. d-r Ljupco Ajdinski”. For the longstanding human activity in preparation of special education and rehabilitation staff and education and rehabilitation of persons with disabilities, the first acknowledgement was given to the Institute of Special education and rehabilitation. The second acknowledgement was meant for Kiril Temkov, PhD, about his numerous initiated and organized human activities, especially for the published paper on the ethical dimensions of special education and rehabilitation and introduction of Ethics in the education system in Republic of Macedonia. The last part of the program was intended for

  12. PREFACE: 3rd International Workshop on Materials Analysis and Processing in Magnetic Fields (MAP3)

    Science.gov (United States)

    Sakka, Yoshio; Hirota, Noriyuki; Horii, Shigeru; Ando, Tsutomu

    2009-07-01

    The 3rd International Workshop on Materials Analysis and Processing in Materials Fields (MAP3) was held on 14-16 May 2008 at the University of Tokyo, Japan. The first was held in March 2004 at the National High Magnetic Field Laboratory in Tallahassee, USA. Two years later the second took place in Grenoble, France. MAP3 was held at The University of Tokyo International Symposium, and jointly with MANA Workshop on Materials Processing by External Stimulation, and JSPS CORE Program of Construction of the World Center on Electromagnetic Processing of Materials. At the end of MAP3 it was decided that the next MAP4 will be held in Atlanta, USA in 2010. Processing in magnetic fields is a rapidly expanding research area with a wide range of promising applications in materials science. MAP3 focused on the magnetic field interactions involved in the study and processing of materials in all disciplines ranging from physics to chemistry and biology: Magnetic field effects on chemical, physical, and biological phenomena Magnetic field effects on electrochemical phenomena Magnetic field effects on thermodynamic phenomena Magnetic field effects on hydrodynamic phenomena Magnetic field effects on crystal growth Magnetic processing of materials Diamagnetic levitation Magneto-Archimedes effect Spin chemistry Application of magnetic fields to analytical chemistry Magnetic orientation Control of structure by magnetic fields Magnetic separation and purification Magnetic field-induced phase transitions Materials properties in high magnetic fields Development of NMR and MRI Medical application of magnetic fields Novel magnetic phenomena Physical property measurement by Magnetic fields High magnetic field generation> MAP3 consisted of 84 presentations including 16 invited talks. This volume of Journal of Physics: Conference Series contains the proceeding of MAP3 with 34 papers that provide a scientific record of the topics covered by the conference with the special topics (13 papers) in

  13. Formal faculty observation and assessment of bedside skills for 3rd-year neurology clerks.

    Science.gov (United States)

    Thompson Stone, Robert; Mooney, Christopher; Wexler, Erika; Mink, Jonathan; Post, Jennifer; Jozefowicz, Ralph F

    2016-11-22

    To evaluate the feasibility and utility of instituting a formalized bedside skills evaluation (BSE) for 3rd-year medical students on the neurology clerkship. A neurologic BSE was developed for 3rd(-)year neurology clerks at the University of Rochester for the 2012-2014 academic years. Faculty directly observed 189 students completing a full history and neurologic examination on real inpatients. Mock grades were calculated utilizing the BSE in the final grade, and number of students with a grade difference was determined when compared to true grade. Correlation was explored between the BSE and clinical scores, National Board of Medical Examiners (NBME) scores, case complexity, and true final grades. A survey was administered to students to assess their clinical skills exposure and the usefulness of the BSE. Faculty completed and submitted a BSE form for 88.3% of students. There was a mock final grade change for 13.2% of students. Correlation coefficients between BSE score and clinical score/NBME score were 0.36 and 0.35, respectively. A statistically significant effect of BSE was found on final clerkship grade (F2,186 = 31.9, p neurology clerkship was feasible. Low correlation between BSE score and other evaluations indicated a unique measurement to contribute to student grade. Using real patients with differing case complexity did not alter the grade. © 2016 American Academy of Neurology.

  14. The Third International Genomic Medicine Conference (3rd IGMC, 2015: overall activities and outcome highlights

    Directory of Open Access Journals (Sweden)

    Muhammad Abu-Elmagd

    2016-10-01

    Full Text Available Abstract The Third International Genomic Medicine Conference (3rd IGMC was organised by the Centre of Excellence in Genomic Medicine Research (CEGMR at the King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia (KSA. This conference is a continuation of a series of meetings, which began with the first International Genomic Medicine Conference (1st IGMC, 2011 followed by the second International Genomic Medicine Conference (2nd IGMC, 2013. The 3rd IGMC meeting presented as a timely opportunity to bring scientists from across the world to gather, discuss, and exchange recent advances in the field of genomics and genetics in general as well as practical information on using these new technologies in different basic and clinical applications. The meeting undoubtedly inspired young male and female Saudi researchers, who attended the conference in large numbers, as evidenced by the oversubscribed oral and poster presentations. The conference also witnessed the launch of the first content for npj Genomic Medicine, a high quality new journal was established in partnership by CEGMR with Springer Nature and published as part of the Nature Partner Journal series. Here, we present a brief summary report of the 2-day meeting including highlights from the oral presentations, poster presentations, workshops, poster prize-winners and comments from the distinguished scientists.

  15. The Third International Genomic Medicine Conference (3rd IGMC, 2015): overall activities and outcome highlights.

    Science.gov (United States)

    Abu-Elmagd, Muhammad; Assidi, Mourad; Dallol, Ashraf; Buhmeida, Abdelbaset; Pushparaj, Peter Natesan; Kalamegam, Gauthaman; Al-Hamzi, Emad; Shay, Jerry W; Scherer, Stephen W; Agarwal, Ashok; Budowle, Bruce; Gari, Mamdooh; Chaudhary, Adeel; Abuzenadah, Adel; Al-Qahtani, Mohammed

    2016-10-17

    The Third International Genomic Medicine Conference (3(rd) IGMC) was organised by the Centre of Excellence in Genomic Medicine Research (CEGMR) at the King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia (KSA). This conference is a continuation of a series of meetings, which began with the first International Genomic Medicine Conference (1(st) IGMC, 2011) followed by the second International Genomic Medicine Conference (2(nd) IGMC, 2013). The 3(rd) IGMC meeting presented as a timely opportunity to bring scientists from across the world to gather, discuss, and exchange recent advances in the field of genomics and genetics in general as well as practical information on using these new technologies in different basic and clinical applications. The meeting undoubtedly inspired young male and female Saudi researchers, who attended the conference in large numbers, as evidenced by the oversubscribed oral and poster presentations. The conference also witnessed the launch of the first content for npj Genomic Medicine, a high quality new journal was established in partnership by CEGMR with Springer Nature and published as part of the Nature Partner Journal series. Here, we present a brief summary report of the 2-day meeting including highlights from the oral presentations, poster presentations, workshops, poster prize-winners and comments from the distinguished scientists.

  16. Effects of high energy photon emissions in laser generated ultra-relativistic plasmas: Real-time synchrotron simulations

    Science.gov (United States)

    Wallin, Erik; Gonoskov, Arkady; Marklund, Mattias

    2015-03-01

    We model the emission of high energy photons due to relativistic charged particle motion in intense laser-plasma interactions. This is done within a particle-in-cell code, for which high frequency radiation normally cannot be resolved due to finite time steps and grid size. A simple expression for the synchrotron radiation spectra is used together with a Monte-Carlo method for the emittance. We extend previous work by allowing for arbitrary fields, considering the particles to be in instantaneous circular motion due to an effective magnetic field. Furthermore, we implement noise reduction techniques and present validity estimates of the method. Finally, we perform a rigorous comparison to the mechanism of radiation reaction, and find the emitted energy to be in excellent agreement with the losses calculated using radiation reaction.

  17. PREFACE: 3rd International Conference of Mechanical Engineering Research (ICMER 2015)

    Science.gov (United States)

    Mamat, Riazalman; Rahman, Mustafizur; Mohd. Zuki Nik Mohamed, Nik; Che Ghani, Saiful Anwar; Harun, Wan Sharuzi Wan

    2015-12-01

    The 3rd ICMER2015 is the continuity of the NCMER2010. The year 2010 represents a significant milestone in the history for Faculty of Mechanical Engineering, Universiti Malaysia Pahang (UMP) Malaysia with the organization of the first and second national level conferences (1st and 2nd NCMER) at UMP on May 26-27 and Dec 3-4 2010. The Faculty then changed the name from National Conference on Mechanical Engineering Research (NCMER) to International Conference on Mechanical Engineering Research (ICMER) in 2011 and this year, 2015 is our 3rd ICMER. These proceedings contain the selected scientific manuscripts submitted to the conference. It is with great pleasure to welcome you to the "International Conference on Mechanical Engineering Research (ICMER2015)" that is held at Zenith Hotel, Kuantan, Malaysia. The call for papers attracted submissions of over two hundred abstracts from twelve different countries including Japan, Iran, China, Kuwait, Indonesia, Norway, Philippines, Morocco, Germany, UAE and more. The scientific papers published in these proceedings have been revised and approved by the technical committee of the 3rd ICMER2015. All of the papers exhibit clear, concise, and precise expositions that appeal to a broad international readership interested in mechanical engineering, combustion, metallurgy, materials science as well as in manufacturing and biomechanics. The reports present original ideas or results of general significance supported by clear reasoning and compelling evidence, and employ methods, theories and practices relevant to the research. The authors clearly state the questions and the significance of their research to theory and practice, describe how the research contributes to new knowledge, and provide tables and figures that meaningfully add to the narrative. In this edition of ICMER representatives attending are from academia, industry, governmental and private sectors. The plenary and invited speakers will present, discuss, promote and

  18. 3rd Quarter Transportation Report FY 2014: Radioactive Waste Shipments to and from the Nevada National Security Site (NNSS)

    Energy Technology Data Exchange (ETDEWEB)

    Gregory, Louis [National Security Technologies, LLC. (NSTec), Mercury, NV (United States)

    2014-09-20

    This report satisfies the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Field Office (NNSA/NFO) commitment to prepare a quarterly summary report of radioactive waste shipments to the Nevada National Security Site (NNSS) Radioactive Waste Management Complex (RWMC) at Area 5. There were no shipments sent for offsite treatment and returned to the NNSS this quarter. This report summarizes the 3rd quarter of Fiscal Year (FY) 2014 low-level radioactive waste (LLW) and mixed low-level radioactive waste (MLLW) shipments. This report also includes annual summaries for FY 2014 in Tables 4 and 5. Tabular summaries are provided which include the following: Sources of and carriers for LLW and MLLW shipments to and from the NNSS; Number and external volume of LLW and MLLW shipments; Highway routes used by carriers; and Incident/accident data applicable to LLW and MLLW shipments. In this report shipments are accounted for upon arrival at the NNSS, while disposal volumes are accounted for upon waste burial. The disposal volumes presented in this report do not include minor volumes of non-radioactive materials that were approved for disposal. Volume reports showing cubic feet generated using the Low-Level Waste Information System may vary slightly due to differing rounding conventions.

  19. PREFACE: 3rd International Symposium on Functional Materials 2009 (ISFM 2009) 3rd International Symposium on Functional Materials 2009 (ISFM 2009)

    Science.gov (United States)

    Kiwon, Kim; Li, Lu; Taehyun, Nam; Jouhyeon, Ahn

    2010-05-01

    The 3rd International Symposium on Functional Materials 2009 (ISFM 2009) and its preconference, Advances in Functional Materials 2009 (AFM 2009), were successfully held in the Republic of Korea from 15-18 June 2009 and in the People's Republic of China from 8-12 June 2009, respectively. The two conferences attracted over 300 oral and poster presentations from over 12 countries including Australia, Canada, China, Germany, Japan, India, Israel, Korea, The Netherlands, Thailand, the UK and the USA. In the two conferences, eight keynote lectures were delivered by S Miyazaki, S A Akbar, D J Singh, C Suryanarayana, M~Greenblatt, H Zhang, T Sato and J Ding. This topical issue of Physica Scripta contains papers presented at the ISFM 2009 and AFM 2009. Keyan Li from Dalian University, People's Republic of China, presents some empirical formulae to estimate the elastic moduli of rocksalt-, zincblende- and chalcopyrite-structured crystals, on the basis of electronegativities of bonded atoms in the crystallographic frame. Min-Jung Kim from Hanyang University, Korea, reports on the preparation and characterization of carboxyl functionalization of magnetite nanoparticles for oligonucleotide immobilization. F Yan from the National University of Singapore studies the fabrication of Bi(Fe0.5Sc0.5)O3-PbTiO3 (BSF-PT) thin films by pulsed laser deposition, and the enhanced magnetic moment with respect to BiFeO3-PbTiO3. Dong-Gil Lee from Pusan National University, Korea, reports on the sterilization of enteropathogenic Escherichia coli using nanofiber TiO2 films prepared by the electrostatic spray method. Sang-Eun Park from the Korea Institute of Science and Technology reports on the study of encapsulated Fe3O4 nanoparticles with a silica thin layer with a reversible capacity of about 363 mAhg-1. Other researchers report on many other exiting achievements in the fields of ferromagnetic materials, magneto-optical materials, thermoelectric materials, shape memory materials, fuel-cell and

  20. A high resolution pulsed field ionization photoelectron study of O{sub 2} using third generation undulator synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, C.; Heimann, P. [Chemical Sciences Division and Advanced Light Source, Accelerator and Fusion Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Evans, M.; Stimson, S.; Fenn, P.T.; Ng, C.Y. [Ames Laboratory, United States Department of Energy]|[Department of Chemistry, Iowa State University, Ames, Iowa 50011 (United States)

    1997-06-01

    We have improved a newly developed experimental scheme for high resolution pulsed field ionization photoelectron (PFI-PE) studies [Hsu {ital et al.}, Rev. Sci. Instrum. (in press)] using the high resolution monochromatized multibunch undulator synchrotron source of the Chemical Dynamics Beamline at the Advanced Light Source. This improved scheme makes possible PFI-PE measurements with essentially no contamination by background electrons arising from direct photoionization and prompt autoionization processes. We present here a preliminary analysis of the rotationally resolved PFI-PE spectrum for O{sub 2} obtained at a resolution of 0.5 meV (full-width-at-half-maximum) in the photon energy range of 18.1{endash}19.4 eV, yielding accurate ionization energies for the transitions O{sub 2}{sup +}(b{sup 4}{Sigma}{sub g}{sup {minus}}, v{sup +}=0{endash}9, N{sup +}=1){l_arrow}O{sub 2}(X{sup 3}{Sigma}{sub g}{sup {minus}}, v=0, N=1). {copyright} {ital 1997 American Institute of Physics.}

  1. 3rd International Conference on Modelling and Management of Engineering Processes

    CERN Document Server

    Gericke, Kilian; Szélig, Nikoletta; Vajna, Sándor

    2015-01-01

    Innovative processes for the development of products and services are more and more considered as an organisational capability, which is recognised to be increasingly important for business success in today’s competitive environment. However, management and academia need a more profound understanding of these processes in order to develop improved management approaches to exploit business potentials. This book contains the proceedings of the 3rd International Conference on Modelling and Management of Engineering Processes (MMEP2013) held in Magdeburg, Germany, in November 2013. It includes contributions from international leading researchers in the fields of process modelling and process management. The conference topics were recent trends in modelling and management of engineering processes, potential synergies between different modelling approaches, future challenges for the management of engineering processes as well as future research in these areas.

  2. Idaho National Laboratory Quarterly Occurrence Analysis - 3rd Quarter FY-2016

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth Ann [Idaho National Laboratory

    2016-09-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 73 reportable events (23 from the 3rd Qtr FY-16 and 50 from the prior three reporting quarters), as well as 45 other issue reports (including events found to be not reportable and Significant Category A and B conditions) identified at INL during the past 12 months (16 from this quarter and 29 from the prior three quarters).

  3. Passive solar progress: a simplified guide to the 3rd national passive solar conference

    Energy Technology Data Exchange (ETDEWEB)

    Miller, H.; Howell, Y.; Richards, D.

    1980-10-01

    Some of the concepts and practices that have come to be known as passive solar heating and cooling are introduced, and a current picture of the field is presented. Much of the material presented is derived from papers given at the 3rd National Passive Solar Conference held in San Jose, California in January 1979 and sponsored by the US Department of Energy. Extracts and data from these papers have been integrated in the text with explanatory and descriptive material. In this way, it is attempted to present technical information in an introductory context. Topics include design considerations, passive and hybrid systems and applications, sizing methods and performance prediction, and implementation issues. A glossary is included. (WHK)

  4. 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications

    CERN Document Server

    Koziel, Slawomir; Kacprzyk, Janusz; Leifsson, Leifur; Ören, Tuncer

    2015-01-01

    This book includes extended and revised versions of a set of selected papers from the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH 2013) which was co-organized by the Reykjavik University (RU) and sponsored by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC). SIMULTECH 2013 was held in cooperation with the ACM SIGSIM - Special Interest Group (SIG) on SImulation and Modeling (SIM), Movimento Italiano Modellazione e Simulazione (MIMOS) and AIS Special Interest Group on Modeling and Simulation (AIS SIGMAS) and technically co-sponsored by the Society for Modeling & Simulation International (SCS), Liophant Simulation, Simulation Team and International Federation for Information Processing (IFIP). This proceedings brings together researchers, engineers, applied mathematicians and practitioners working in the advances and applications in the field of system simulation.

  5. Summary of the 3rd workshop on human resources development (HRD) in FNCA. FY2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    The Human Resources Development (HRD) Project was added in 1999 to the Cooperation Activities of 'the Forum for Nuclear Cooperation in Asia (FNCA)' which is organized by AEC of Japan. The HRD Project supports to solidify the foundation of nuclear development utilization in Asia by promoting human resources development in Asian countries. The principal activity of the HRD Project is to hold the Workshop on Human Resources Development in the Nuclear Field in Asia once a year. The objective of the Workshop is to clarify problems and needs of the human resources development of each country and to support mutually by exchanging information etc. The report consists of the summary of the 3rd Workshop on Human Resources Development in the Nuclear Field in Asia held on October 29 - November 1, 2001 at the Nuclear Training Center of the Korea Atomic Energy Research Institute in Daejeon, Korea. (author)

  6. Nonlinear Dynamics of Memristor Based 2nd and 3rd Order Oscillators

    KAUST Repository

    Talukdar, Abdul Hafiz

    2011-05-01

    Exceptional behaviours of Memristor are illustrated in Memristor based second order (Wien oscillator) and third order (phase shift oscillator) oscillator systems in this Thesis. Conventional concepts about sustained oscillation have been argued by demonstrating the possibility of sustained oscillation with oscillating resistance and dynamic poles. Mathematical models are also proposed for analysis and simulations have been presented to support the surprising characteristics of the Memristor based oscillator systems. This thesis also describes a comparative study among the Wien family oscillators with one Memristor. In case of phase shift oscillator, one Memristor and three Memristors systems are illustrated and compared to generalize the nonlinear dynamics observed for both 2nd order and 3rd order system. Detail explanations are provided with analytical models to simplify the unconventional properties of Memristor based oscillatory systems.

  7. Relation between physical activity and academic performance in 3rd-year secondary education students.

    Science.gov (United States)

    Morales, José; Pellicer-Chenoll, Maite; García-Masso, Xavier; Gomis, Manuel; González, Luis-Millán

    2011-10-01

    The main aim of this study was to analyze the relationship between the amount of physical activity and academic performance in 3rd-year secondary education students. The sample was taken from three secondary schools in the area of Barcelona. 284 students (158 girls, 126 boys) with an average age of 14.7 yr. participated. The International Physical Activity Questionnaire was used by students to self-report their amount of physical activity. Students' academic records were obtained for comparisons. Results showed that there was a linear relationship between academic performance and physical activity; nevertheless, there was a trend to stronger correlation when modeling the relationship between these variables with a quadratic equation. Further research should focus on whether academic performance and physical activity might be better explained with a second-order equation.

  8. 3rd Sino-German Conference “Underground Storage of CO2 and Energy”

    CERN Document Server

    Xie, Heping; Were, Patrick

    2013-01-01

    Anthropogenic greenhouse gas emissions, energy security and sustainability are three of the greatest contemporary global challenges today. This year the Sino-German Cooperation Group “Underground Storage of CO2 and Energy”, is meeting on the 21-23 May 2013 for the second time in Goslar, Germany, to convene its 3rd Sino-German conference on the theme “Clean Energy Systems in the Subsurface: Production, Storage and Conversion”.   This volume is a collection of diverse quality scientific works from different perspectives elucidating on the current developments in CO2 geologic sequestration research to reduce greenhouse emissions including measures to monitor surface leakage, groundwater quality and the integrity of caprock, while ensuring a sufficient supply of clean energy. The contributions herein have been structured into 6 major thematic research themes: Integrated Energy and Environmental Utilization of Geo-reservoirs: Law, Risk Management & Monitoring CO2 for Enhanced Gas and Oil Recovery, Coa...

  9. 3rd International Summer School Nanotechnology : From Fundamental Research to Innovations

    CERN Document Server

    Yatsenko, Leonid

    2015-01-01

    This book highlights the most recent advances in nanoscience from leading researchers in Ukraine, Europe, and beyond.  It features contributions from participants of the 3rd International Summer School “Nanotechnology: From Fundamental Research to Innovations,” held in Yaremche, Ukraine on August 23-26, 2014 and of the 2nd International NANO-2014 Conference, held in Lviv, Ukraine on August 27-30, 2014.  These events took place within the framework of the European Commission FP7 project Nanotwinning, and were organized jointly by the Institute of Physics of the National Academy of Sciences of Ukraine, University of Tartu (Estonia), University of Turin (Italy), and Pierre and Marie Curie University (France).  Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key results in the areas of nanocomposites and nanomaterials, nanostructured surfaces, microscopy of nano-objects, nano-optics and nanophotonics, nanoplasmonics, nanochemistry, na...

  10. Meeting Report: 3rd International Workshop on Insulin & Cancer Heidelberg, Germany, October 30-31, 2010

    Directory of Open Access Journals (Sweden)

    Chantelau Ernst

    2010-12-01

    Full Text Available Abstract The 3rd International Workshop on Insulin & Cancer was held on October 30-31, 2010 at the German Cancer Research Centre in Heidelberg/Germany. The topics followed-up the discussions of the previous workshops: possible differences in mitogenicity between natural insulin and genetically engineered insulin derivatives (insulin analogues, as shown by laboratory studies and epidemiologic studies alike; molecular studies on the links between metabolic and mitogenic effects of insulin, and of hyperinsulinaemia in particular; epidemiologic evidence of interferences between insulin and other hormones, particularly sex hormones, and obesity-associated cancer; the involvement of inflammatory cytokines produced by fat tissue in obesity-associated cancer; aspects of drug-design (binding drugs to albumin and, last but not least, detection and investigation of circulating cancer cells.

  11. Meeting report: 3rd international workshop on insulin & cancer heidelberg, Germany, october 30-31, 2010.

    Science.gov (United States)

    Chantelau, Ernst; Mayer, Doris

    2010-01-01

    The 3rd International Workshop on Insulin & Cancer was held on October 30-31, 2010 at the German Cancer Research Centre in Heidelberg/Germany. The topics followed-up the discussions of the previous workshops: possible differences in mitogenicity between natural insulin and genetically engineered insulin derivatives (insulin analogues), as shown by laboratory studies and epidemiologic studies alike; molecular studies on the links between metabolic and mitogenic effects of insulin, and of hyperinsulinaemia in particular; epidemiologic evidence of interferences between insulin and other hormones, particularly sex hormones, and obesity-associated cancer; the involvement of inflammatory cytokines produced by fat tissue in obesity-associated cancer; aspects of drug-design (binding drugs to albumin) and, last but not least, detection and investigation of circulating cancer cells.

  12. Retrospective Dosimetry of Vver 440 Reactor Pressure Vessel at the 3RD Unit of Dukovany Npp

    Science.gov (United States)

    Marek, M.; Viererbl, L.; Sus, F.; Klupak, V.; Rataj, J.; Hogel, J.

    2009-08-01

    Reactor pressure vessel (RPV) residual lifetime of the Czech VVER-440 is currently monitored under Surveillance Specimens Programs (SSP) focused on reactor pressure vessel materials. Neutron fluence in the samples and its distribution in the RPV are determined by a combination of calculation results and the experimental data coming from the reactor dosimetry measurements both in the specimen containers and in the reactor cavity. The direct experimental assessment of the neutron flux density incident onto RPV and neutron fluence for the entire period of nuclear power plant unit operation can be based on the evaluation of the samples taken from the inner RPV cladding. The Retrospective Dosimetry was also used at Dukovany NPP at its 3rd unit after the 18th cycle. The paper describes methodology, experimental setup for sample extraction, measurement of activities, and the determination of the neutron flux and fluence averaged over the samples.

  13. 3rd International Asia Conference on Informatics in Control, Automation and Robotics

    CERN Document Server

    Informatics in Control, Automation and Robotics

    2012-01-01

    Session 2 includes 110 papers selected from 2011 3rd International Asia Conference on Informatics in Control, Automation and Robotics (CAR 2011), held on December 24-25, 2011, Shenzhen, China.   As we all know, the ever growing technology in robotics and automation will help build a better human society. This session will provide a unique opportunity for the academic and industrial communities to address new challenges, share solutions, and discuss research directions for the future. Robotics research emphasizes intelligence and adaptability to cope with unstructured environments. Automation research emphasizes efficiency, productivity, quality, and reliability, focusing on systems that operate autonomously. The main focus of this session is on the autonomous acquisition of semantic information in intelligent robots and systems, as well as the use of semantic knowledge to guide further acquisition of information.

  14. 0.5V 3rd-order Tunable gm-C Filter

    Directory of Open Access Journals (Sweden)

    R. Arya

    2013-04-01

    Full Text Available This paper proposes a 3rd-order gm-C filter that operates with the extremely low voltage supply of 0.5V. The employed transconductor is capable for operating in an extremely low voltage power supply environment. A benefit offered by the employed transconductor is that the filter’s cut-off frequency can be tuned, through a dc control current, for relatively large ranges. The filter structure was designed using normal threshold transistors of a triple-well 0.13μm CMOS process and is operated under a 0.5V supply voltage; its behavior has been evaluated through simulation results by utilizing the Analog Design Environment of the Cadence software.

  15. Virtual Visit to the ATLAS Control Room by 1st and 3rd Lyceums in Chios

    CERN Multimedia

    2013-01-01

    High school students from the 1st and 3rd Lyceums of Chios, Greece, will be visiting the control room of ATLAS to discuss the latest results on the Higgs search, LHC’s first long shutdown and what the future holds for the ATLAS experiment. This visit takes place in the context of a Masterclass where students will learn how to analyse real events from the LHC with the use of the HYPATIA online applet based on educational scenarios from the Discover the COSMOS portal. This full-day activity is organized by the University of Athens, the University of the Aegean, Ellinogermaniki Agogi and the Chios Physical Society in the framework of the Open Discovery Space EU project.

  16. 3rd international KES conference on Smart Education and Smart e-Learning

    CERN Document Server

    Howlett, Robert; Jain, Lakhmi

    2016-01-01

    This book contains the contributions presented at the 3rd international KES conference on Smart Education and Smart e-Learning, which took place in Puerto de la Cruz, Tenerife, Spain, June 15-17, 2016. It contains a total of 56 peer-reviewed book chapters that are grouped into several parts: Part 1 - Smart University: Conceptual Modeling, Part 2 – Smart Education: Research and Case Studies, Part 3 – Smart e-Learning, Part 4 – Smart Education: Software and Hardware Systems, and Part 5 – Smart Technology as a Resource to Improve Education and Professional Training. We believe that the book will serve as a useful source of research data and valuable information for faculty, scholars, Ph.D. students, administrators, and practitioners - those who are interested in innovative areas of smart education and smart e-learning. .

  17. Type division and controlling factor analysis of 3rd-order sequences in marine carbonate rocks

    Directory of Open Access Journals (Sweden)

    Yunbo Zhang

    2014-03-01

    Full Text Available Type division and controlling factor analysis of 3rd-order sequence are of practical significance to tectonic analysis, sedimentary environment identification, and other geological researches. Based on the comprehensive analysis of carbon and oxygen isotope trends, paleobathymetry and spectral-frequency of representative well logs, 3rd-order sequences can be divided into 3 types: (a global sea level (GSL sequence mainly controlled by GSL change; (b tectonic sequence mainly controlled by regional tectonic activity; and (c composite sequence jointly controlled by GSL change and regional tectonic activity. This study aims to identify the controlling factors of 3rd-order sequences and to illustrate a new method for classification of 3rd-order sequences of the middle Permian strata in the Sichuan Basin, China. The middle Permian strata in the Sichuan Basin consist of 3 basin-contrastive 3rd-order sequences, i.e., PSQ1, PSQ2 and PSQ3. Of these, PSQ1 is a GSL sequence while PSQ2 and PSQ3 are composite sequences. The results suggest that the depositional environment was stable during the deposition of PSQ1, but was activated by tectonic activity during the deposition of the middle Permian Maokou Formation.

  18. Analysis of nanometer-isolated trench diffract aerial image of both conventional and second-generation synchrotron-based proximity x-ray lithography

    Science.gov (United States)

    Xie, Changqing; Chen, Dapeng; Liu, Ming; Ye, Tianchun; Yi, Futing

    2005-01-01

    In this paper, Beam Propagation Method (BPM) with Fast Fourier Transforms(FFT) is employed to efficiently calculate the diffract image in the wafer plane for both conventional and second generation synchrotron-based proximity x-ray lithography(PXL). In the simulation, a dark-field isolated space pattern silicon nitride/Ta x-ray mask is used for conventional PXL and a diamond /Ta x-ray mask is used for second generation PXL, the diffract image"s dependency on absorber thickness, mask-wafer gap, effective total blur, linewidth and absorber sidewall slope has been numerically evaluated. For conventional PXL, in order to obtain a isolated trench resolution of 50nm, the mask-wafer gap should be controlled below 5 micron, the optimization condition is mask-wafer gap 5 micron, Ta absorber thickness 300nm, effective total blur 10nm, absorber sidewall slope 3°, the corresponding aerial image contrast is 0.457; For second generation, in order to obtain a isolated trench resolution of 50nm, the mask-wafer gap can be as large as 10 micron. In order to obtain a isolated trench resolution of 35nm, mask-wafer gap should be controlled below 5 micron.

  19. The status of the macromolecular crystallography beamlines at the European Synchrotron Radiation Facility

    Science.gov (United States)

    Mueller-Dieckmann, Christoph; Bowler, Matthew W.; Carpentier, Philippe; Flot, David; McCarthy, Andrew A.; Nanao, Max H.; Nurizzo, Didier; Pernot, Petra; Popov, Alexander; Round, Adam; Royant, Antoine; de Sanctis, Daniele; von Stetten, David; Leonard, Gordon A.

    2015-04-01

    The European Synchrotron Radiation Facility (ESRF) is the oldest and most powerful 3rd generation synchrotron in Europe, providing X-rays to more than 40 experimental stations welcoming several thousand researchers per year. A major success story has been the ESRF's facilities for macromolecular crystallography (MX). These are grouped around 3 straight sections: On ID23 canted undulators accommodate ID23-1, a mini-focus tuneable energy end station and ID23-2, the world's first micro-focus beamline dedicated to MX; ID29 houses a single, mini-focus, tuneable energy end station; ID30 will provide three end stations for MX due in operation from mid-2014 to early 2015. Here, one branch of a canted X-ray source feeds two fixed-energy end stations (MASSIF-1, MASSIF-3). The second feeds ID30B, a variable focus, tuneable energy beamline. MASSIF-1 is optimised for automatic high-throughput experiments requiring a relatively large beam size at the sample position, MASSIF-3 is a high-intensity, micro-focus facility designed to complement ID23-2. All end stations are highly automated, equipped with sample mounting robots and large area, fast-readout photon-counting detectors. Experiment control and tracking is achieved via a combination of the MXCuBE2 graphical user interface and the ISPyB database, the former allowing user-friendly control of all beamline components, the latter providing data tracking before, after and during experiments.

  20. Additional circular intercostal space created by bifurcation of the left 3rd rib and its costal cartilage: a case report.

    Science.gov (United States)

    Kumar, Naveen; Guru, Anitha; Patil, Jyothsna; Ravindra, Swamy; Badagabettu, Satheesha Nayak

    2013-01-08

    In the thorax there are normally 11 pairs of intercostal spaces: the spaces between adjacent ribs. The intercostal spaces contain intercostal muscles, intercostal nerves and vessels. During a routine dissection for undergraduate medical students, we observed a variation involving the left 3rd rib and 3rd costal cartilage in the cadaver of a man of Indian ethnicity aged about 65 years. The left 3rd rib and its costal cartilage were bifurcated at their costochondral junction enclosing a small circular additional intercostal space. Muscle tissue covered by deep fascia was present in this circular intercostal space. The muscle in the circular intercostal space received its nerve supply from a branch of the 2nd intercostal nerve. Knowledge of such variations is helpful to surgeons operating on the anterior thoracic wall involving ribs and intercostal spaces. Knowing the possibility of the presence of an additional space between normal intercostal spaces can guide a surgeon through to a successful surgery.

  1. On the Generalisation of Kepler's 3rd Law for the Vacuum Field of the Point-Mass

    Directory of Open Access Journals (Sweden)

    Crothers S. J.

    2005-07-01

    Full Text Available I derive herein a general form of Kepler’s 3rd Law for the general solution to Einstein’s vacuum field. I also obtain stable orbits for photons in all the configurations of the point-mass. Contrary to the accepted theory, Kepler’s 3rd Law is modified by General Relativity and leads to a finite angular velocity as the proper radius of the orbit goes down to zero, without the formation of a black hole. Finally, I generalise the expression for the potential function of the general solution for the point-mass in the weak field.

  2. On the Generalisation of Kepler's 3rd Law for the Vacuum Field of the Point-Mass

    OpenAIRE

    Crothers S. J.

    2005-01-01

    I derive herein a general form of Kepler’s 3rd Law for the general solution to Einstein’s vacuum field. I also obtain stable orbits for photons in all the configurations of the point-mass. Contrary to the accepted theory, Kepler’s 3rd Law is modified by General Relativity and leads to a finite angular velocity as the proper radius of the orbit goes down to zero, without the formation of a black hole. Finally, I generalise the expression for the potential function of the general solution for t...

  3. 3rd International Conference of Open and Distance Learning (ICODL 2005 held in Patra, Greece

    Directory of Open Access Journals (Sweden)

    3rd International Conference of Open and Distance Learning (ICODL 2005 held in Patra, Greece

    2006-01-01

    Full Text Available NOTE FOR TOJDE EDITOR 3rd International Conference of Open and Distance Learning (ICODL 2005 held in Patra, Greece Dear Friends and Tojde Readers, First of all I would like to thank very much those who participated in the 3rd International Conference of Open and Distance Learning (ICODL 2005 in Patra, Greece. Those who couldn't come, I hope to meet them some time in the future. I personally want to give my thanks to all who sent their papers for the Conference and trusted us for the organization of the Conference and our involvement in Open and Distance Learning. In total, the 3 days of the Conference there were 620 people (registered who attended the presentations and panels and about 70 people. The proceedings of the Conference are in two volumes; Volume A (pages 686 and Volume B (pages 592. All those presentations (names and titles which are in the final programme (see http://artemis.eap.gr/icodl2005 are included in the proceedings. I must inform you that the majority of the papers are in Greek. I haven't counted the English language papers, but I presume that they must be around 40. The success of the ICODL 2005 is already leading us to the preparation of the next conference which - I believe - will take place in Athens in the year 2007. I will keep you informed for our plans. At the same time the Hellenic Network of Open and Distance Education (H-NODE in cooperation with the 'Propobos Publishing Company' has published the second issue of the Journal 'Open Education'. If you want information about the Journal you can contact 'Propobos Publishing Company': E-mail propobos@propobos.gr. The H-NODE in cooperation with the Department of Education - University of Crete is also organizing a "Summer School" in the town of Rethymnon (Crete in July 2006 (16-23. The "Summer School" will take place in the campus which is by the sea and will be only in Greek. Last year we had organized a similar "Summer School" in the island of Kefalonia, in the west

  4. Generation of warm dense matter and strongly coupled plasmas using the High Radiation on Materials facility at the CERN Super Proton Synchrotron

    CERN Document Server

    Tahir, N A; Brugger, M; Assmann, R; Shutov, A; Lomonosov, I V; Gryaznov, V; Piriz, A R; Udrea, S; Hoffmann, D H H; Fortov, V E; Deutsch, C

    2009-01-01

    A dedicated facility named High Radiation on Materials (HiRadMat) is being constructed at CERN to study the interaction of the 450 GeV protons generated by the Super Proton Synchrotron (SPS) with fixed solid targets of different materials. The main purpose of these future experiments is to study the generation and propagation of thermal shock waves in the target in order to assess the damage caused to the equipment, including collimators and absorbers, in case of an accident involving an uncontrolled release of the entire beam at a given point. Detailed numerical simulations of the beam-target interaction of several cases of interest have been carried out. In this paper we present simulations of the thermodynamic and the hydrodynamic response of a solid tungsten cylindrical target that is facially irradiated with the SPS beam with nominal parameters. These calculations have been carried out in two steps. First, the energy loss of the protons is calculated in the solid target using the FLUKA code (Fasso et al....

  5. The 2001 activities and the 3rd workshop of the human resources development project in FNCA

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    In 1999, the Project for Human Resources Development (HRD) was initiated as defined in the framework of the Forum for Nuclear Cooperation in Asia (FNCA), organized by the Atomic Energy Commission of Japan. The objective of the HRD Project is to solidify the foundation of technologies for nuclear development and utilization in Asia by promoting human resources development in Asian countries. In the Project are two kinds of activity; In-workshop activity and Outside-of-workshop activity. The 3rd Workshop on Human Resources Development in the Nuclear Field was held on October 29 to November 1, at the Nuclear Training Center of KAERI. Participating countries were China, Indonesia, Republic of Korea, Japan, Malaysia, the Philippines, Thailand, and Vietnam. The secretariat for the Human Resources Development Project is provided by the Nuclear Training Center of the Korea Atomic Energy Research Institute and the Nuclear Technology and Education Center of the Japan Atomic Energy Research Institute. This report consists of presentation papers and materials at the Workshop as In-Workshop Activity, a document of project review on Human Resources Development for the fourth Coordinators Meeting of FNCA at Tokyo on March, 2002, a letter of proposal from the Project Leader of Japan to the project leaders of the participating countries, and training materials of participating countries as Outside-Workshop Activity. (author)

  6. China Satellite Navigation Conference (CSNC) 2012 Proceedings : The 3rd China Satellite Navigation Conference

    CERN Document Server

    Liu, Jingnan; Yang, Yuanxi; Fan, Shiwei

    2012-01-01

    Proceedings of the 3rd China Satellite Navigation Conference (CSNC2012) presents selected research papers from CSNC2012, held on 15-19 May in Guanzhou, China. These papers discuss the technologies and applications of the Global Navigation Satellite System (GNSS), and the latest progress made in the China BeiDou system especially. They are divided into 9 topics to match the corresponding sessions in CSNC2012, which broadly covered key topics in GNSS. Readers can learn about the BeiDou system and keep abreast of the latest advances in GNSS techniques and applications. SUN Jiadong is the Chief Designer of the Compass/BeiDou system, and the Academician of Chinese Academy of Sciences; LIU Jingnan is a professor at Wuhan University, and the Academician of Chinese Academy of Engineering; YANG Yuanxi is a professor at China National Administration of GNSS and Applications, and the Academician of Chinese Academy of Sciences; FAN Shiwei öis a researcher on satellite navigation.

  7. Medicinal plants profile used by the 3rd District population of Maceió-AL.

    Science.gov (United States)

    Griz, S A S; Matos-Rocha, T J; Santos, A F; Costa, J G; Mousinho, K C

    2017-05-04

    Herein the use of medicinal plants by the population of the 3rd Sanitary District of Maceió-AL city is reported. Transversal description was conducted from February 2013 to January 2014, with a sample of 116 individuals of both Gender Genders aged over 18 years. The ethnobotanical information interviews ethnobotanical information were obtained through semi - structured questionnaire featuring the use of medicinal plants and social and economical data. Descriptive statistics was applied for quantitative variables as mean and standard deviation and proportions for qualitative variables in the frequency table format. The results showed that 85.34% of the interviewees used plants for medicinal purposes. As the majority of these were (73.28%) females in the age group between 30-60 years of old. Among a total of 45 identified plant species, the highest use frequency were for Boldus Peumus (bilberry), Melissa officinalis (lemon balm), and Mentha piperita (mint). The most widely used plant foliage part was (53.53%) prepared as an infusion (55.5%). The use of medicinal plants in Maceió cityis widespread, highlighting the importance of ethnobotanical knowledge for the study of medicinal plants.

  8. Regional apparent diffusion coefficient values in 3rd trimester fetal brain

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, Chen [Tel Aviv University, Department of Radiology, Sheba Medical Center, Tel Hashomer (affiliated to the Sackler School of Medicine), Tel Aviv (Israel); Sheba Medical Center, Diagnostic Imaging, 52621, Tel Hashomer (Israel); Weisz, Boaz; Lipitz, Shlomo; Katorza, Eldad [Tel Aviv University, Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer (affiliated to the Sackler School of Medicine), Tel Aviv (Israel); Yaniv, Gal; Bergman, Dafi [Tel Aviv University, Department of Radiology, Sheba Medical Center, Tel Hashomer (affiliated to the Sackler School of Medicine), Tel Aviv (Israel); Biegon, Anat [Stony Brook University School of Medicine, Department of Neurology, Stony Brook, NY (United States)

    2014-07-15

    Apparent diffusion coefficient (ADC) values in the developing fetus can be used in the diagnosis and prognosis of prenatal brain pathologies. To this end, we measured regional ADC in a relatively large cohort of normal fetal brains in utero. Diffusion-weighted imaging (DWI) was performed in 48 non-sedated 3rd trimester fetuses with normal structural MR imaging results. ADC was measured in white matter (frontal, parietal, temporal, and occipital lobes), basal ganglia, thalamus, pons, and cerebellum. Regional ADC values were compared by one-way ANOVA with gestational age as covariate. Regression analysis was used to examine gestational age-related changes in regional ADC. Four other cases of CMV infection were also examined. Median gestational age was 32 weeks (range, 26-33 weeks). There was a highly significant effect of region on ADC, whereby ADC values were highest in white matter, with significantly lower values in basal ganglia and cerebellum and the lowest values in thalamus and pons. ADC did not significantly change with gestational age in any of the regions tested. In the four cases with fetal CMV infection, ADC value was associated with a global decrease. ADC values in normal fetal brain are relatively stable during the third trimester, show consistent regional variation, and can make an important contribution to the early diagnosis and possibly prognosis of fetal brain pathologies. (orig.)

  9. Book Review: Guide to computer forensics and investigations (3rd ed.

    Directory of Open Access Journals (Sweden)

    Keyu Jiang

    2008-09-01

    Full Text Available Nelson, B., Phillips, A., Enfinger, F., & Steuart, C. (2008. Guide to computer forensics and investigations (3rd ed.. New Jersey: Pearson Education, Inc. 693 pages, ISBN: 1-4180-6733-4 (paper.Reviewed by Keyu Jiang (kjiang@fhsu.edu and Ruifeng Xuan (r_xuan@scatcat.fhsu.edu, Department of Information Networking and Telecommunications, Fort Hays State University, Hays, KS 67601Nelson, Phillips, Enfinger, and Steuart’s book is about the science of computer forensics and its implications in crime investigations. This book is not intended to provide comprehensive training in computer forensics, but introduce the science the science of computer forensics and its implications in crime investigations.  It focused on establishing a solid foundation for those who are new to this field.  Nelson, Philips, Enfiger, and Steuart are experienced experts in different areas of computer forensics.  Different expertise makes this book could benefit many groups of people at different educational level and industrial background.(see PDF for full review

  10. A 3rd Order WENO GLM-MHD Scheme for Magnetic Reconnection

    Institute of Scientific and Technical Information of China (English)

    FENG Xueshang; ZHOU Yufen; HU Yanqi

    2006-01-01

    A new numerical scheme of 3rd order Weighted Essentially Non-Oscillatory (WENO)type for 2.5D mixed GLM-MHD in Cartesian coordinates is proposed. The MHD equations are modified by combining the arguments as by Dellar and Dedner et al to couple the divergence constraint with the evolution equations using a Generalized Lagrange Multiplier (GLM). Moreover, the magnetohydrodynamic part of the GLM-MHD system is still in conservation form. Meanwhile, this method is very easy to add to an existing code since the underlying MHD solver does not have to be modified. To show the validation and capacity of its application to MHD problem modelling,interaction between a magnetosonic shock and a denser cloud and magnetic reconnection problems are used to verify this new MHD code. The numerical tests for 2D Orszag and Tang's MHD vortex,interaction between a magnetosonic shock and a denser cloud and magnetic reconnection problems show that the third order WENO MHD solvers are robust and yield reliable results by the new mixed GLM or the mixed EGLM correction here even if it can not be shown that how the divergence errors are transported as well as damped as done for one dimensional ideal MHD by Dedner et al.

  11. 3rd International Conference on Opto-Electronics and Applied Optics

    CERN Document Server

    Chakrabarti, Satyajit; Reehal, Haricharan; Lakshminarayanan, Vasudevan

    2017-01-01

    The Proceedings of 3rd International Conference on Opto-Electronics and Applied Optics, OPTRONIX 2016 is an effort to promote and present the research works by scientists and researchers including students in India and abroad in the area of Green Photonics and other related areas as well as to raise awareness about the recent trends of research and development in the area of the related fields. The book has been organized in such a way that it will be easier for the readers to go through and find out the topic of their interests. The first part includes the Keynote addresses by Rajesh Gupta, Department of Energy Science and Engineering, Indian Institute of Technology, Bombay; P.T. Ajith Kumar, President and Leading Scientist Light Logics Holography and Optics, Crescent Hill, Trivandrum, Kerala; and K.K. Ghosh, Institute of Engineering & Management, Kolkata, India.  The second part focuses on the Plenary and Invited Talks given by eminent scientists namely, Vasudevan Lakshminarayanan, University of Wate...

  12. Measurement and correction of the 3rd order resonance in the Tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, F.; /CERN; Alexahin, Y.; Lebedev, V.; Still, D.; Valishev, A.; /Fermilab

    2006-06-01

    At Fermilab Tevatron BPM system has been recently upgraded resulting much better accuracy of beam position measurements and improvements of data acquisition for turn-by-turn measurements. That allows one to record the beam position at each turn for 8000 turns for all BPMs (118 in each plane) with accuracy of about 10-20 {micro}m. In the last decade a harmonic analysis tool has been developed at CERN that allows relating each FFT line derived from the BPM data with a particular non-linear resonance in the machine. In fact, one can even detect the longitudinal position of the sources of these resonances. Experiments have been performed at the Tevatron in which beams have been kicked to various amplitudes to analyze the 3rd order resonance. It was possible to address this rather large resonance to some regular machine sextupoles. An alternative sextupole scheme allowed the suppression of this resonance by a good factor of 2. Lastly, the experimental data are compared with model calculations.

  13. Iowa Acceleration Scale Manual: A Guide for Whole-Grade Acceleration K-8. (3rd Edition, Manual)

    Science.gov (United States)

    Assouline, Susan G.; Colangelo, Nicholas; Lupkowski-Shoplik, Ann; Forstadt, Leslie; Lipscomb, Jonathon

    2009-01-01

    Feedback from years of nationwide use has resulted in a 3rd Edition of this unique, systematic, and objective guide to considering and implementing academic acceleration. Developed and tested by the Belin-Blank Center at the University of Iowa, the IAS ensures that acceleration decisions are systematic, thoughtful, well reasoned, and defensible.…

  14. Visual Arts Teaching in Kindergarten through 3rd-Grade Classrooms in the UAE: Teacher Profiles, Perceptions, and Practices

    Science.gov (United States)

    Buldu, Mehmet; Shaban, Mohamed S.

    2010-01-01

    This study portrayed a picture of kindergarten through 3rd-grade teachers who teach visual arts, their perceptions of the value of visual arts, their visual arts teaching practices, visual arts experiences provided to young learners in school, and major factors and/or influences that affect their teaching of visual arts. The sample for this study…

  15. Internationalisation at Home in a Global Perspective: A critical Survey of the 3rd Global Survey Report of IAU

    NARCIS (Netherlands)

    Beelen, J.

    2011-01-01

    This article takes the 3rd Global Survey Report of the International Association of Universities (IAU) as a starting point. The results of this worldwide survey were published in September 2010. The article discusses four questions from the survey that include internationalisation at Home (IaH) and

  16. Constancy and Variability: Dialogic Literacy Events as Sites for Improvisation in Two 3rd-Grade Classrooms

    Science.gov (United States)

    Jordan, Michelle E.; Santori, Diane

    2015-01-01

    This multisite study investigates dialogic literacy events that revolved around narrative and informational texts in two 3rd-grade classrooms. The authors offer a metaphor of musical improvisation to contemplate dialogic literacy events as part of the repertoire of teaching and learning experiences. In literacy learning, where there is much…

  17. Synchrotron applications in wood preservation and deterioration

    Science.gov (United States)

    Barbara L. Illman

    2003-01-01

    Several non-intrusive synchrotron techniques are being used to detect and study wood decay. The techniques use high intensity synchrotron-generated X-rays to determine the atomic structure of materials with imaging, diffraction, and absorption. Some of the techniques are X-ray absorption near edge structure (XANES), X-ray fluorescence spectroscopy (XFS), X-ray...

  18. High pressure and synchrotron radiation satellite workshop

    Energy Technology Data Exchange (ETDEWEB)

    Bass, J.; Guignot, N.; Morard, G.; Mezouar, M.; Andrault, D.; Bolfan-Casanova, N.; Sturhahn, W.; Daniel, I.; Reynard, B.; Simionovici, A.; Sanchez Valle, C.; Martinez, I.; Kantor, I.; Dubrovinsky, I.; Mccammon, C.; Dubrovinskaia, N.; Kurnosiv, A.; Kuznetsov, A.; Goncharenko, I.; Loubeyre, P.; Desgreniers, S.; Weck, G.; Yoo, C.S.; Iota, V.; Park, J.; Cynn, H.; Gorelli, F.; Toulemonde, P.; Machon, D.; Merlen, A.; San Miguel, A.; Amboage, M.; Aquilanti, G.; Mathon, O.; Pascarelli, S.; Itie, J.P.; Mcmillan, P.F.; Trapananti, A.; Di Cicco, A.; Panfilis, S. de; Filipponi, A.; Kreisel, J.; Bouvier, P.; Dkhil, B.; Chaabane, B.; Rosner, H.; Koudela, D.; Schwarz, U.; Handestein, A.; Hanfland, M.; Opahle, I.; Koepernik, K.; Kuzmin, M.; Mueller, K.H.; Mydosh, J.; Richter, M.; Hejny, C.; Falconi, S.; Lundegaard, L.F.; Mcmahon, M.I; Loa, I.; Syassen, K.; Wang, X.; Roth, H.; Lorenz, T.; Farber Daniel, I.; Antonangeli Daniele, I.; Krisch, M.; Badro, J.; Fiquet, G.; Occelli, F.; Mao, W.L.; Mao, H.K.; Eng, P.; Kao, C.C.; Shu, J.F.; Hemley, R.J.; Tse, J.S.; Yao, Y.; Deen, P.P.; Paolasini, I.; Braithwaite, D.; Kernavanois, N.; Lapertot, G.; Rupprecht, K.; Leupold, O.; Ponkratz, U.; Wortmann, G.; Beraud, A.; Krisch, M.; Farber, D.; Antonangeli, D.; Aracne, C.; Zarestky, J.L.; Mcqueeney, R.; Mathon, O.; Baudelet, F.; Decremps, F.; Itie, J.P.; Nataf, I.; Pascarelli, S.; Polian, A

    2006-07-01

    The workshop is dedicated to recent advances on science at high pressure at third generation synchrotron sources. A variety of experiments using synchrotron radiation techniques including X-ray diffraction, EXAFS (extended X-ray absorption fine structure), inelastic X-ray scattering, Compton scattering and Moessbauer spectroscopy of crystalline, liquid or amorphous samples, are reported. This document gathers the abstracts of the presentations.

  19. Synchrotron topographic evaluation of strain around craters generated by irradiation with X-ray pulses from free electron laser with different intensities

    Energy Technology Data Exchange (ETDEWEB)

    Wierzchowski, W., E-mail: wojciech.wierzchowski@itme.edu.pl [Institute of Electronic Materials Technology, Wólczyńska 133, Warsaw 01-919 (Poland); Wieteska, K. [National Centre for Nuclear Research, Soltana 7, Otwock-Świerk 05-400 (Poland); Sobierajski, R.; Klinger, D.; Pełka, J.; Żymierska, D. [Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warsaw 02-668 (Poland); Paulmann, C. [DESY HASYLAB, Notkestrasse 85, D-22607 Hamburg (Germany); Hau-Riege, S.P.; London, R.A.; Graf, A. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Burian, T.; Chalupský, J. [Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Prague 8 (Czech Republic); Gaudin, J. [European XFEL GmbH, Albert-Einstein-Ring 19 D-22761 Hamburg (Germany); Krzywinski, J.; Moeller, S.; Messerschmidt, M.; Bozek, J.; Bostedt, Ch. [National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025 (United States)

    2015-12-01

    The silicon sample irradiated with femtosecond soft X-ray pulses at the Linac Coherent Light Source has been studied with several synchrotron X-ray diffraction topographic methods at HASYLAB. The irradiations were performed for two different wavelengths combined with various impact energy controlled by means of the gas attenuator. The topographic investigation revealed characteristic images of the created craters included the inner region reflecting the X-rays at lower angle, coming most probably from part of the silicon melted during the irradiation. The melted region was surrounded by strained outer region, similar to those observed in the case of rod-like inclusion but less regular in view of some irregularity of the beam used for generation of the craters. It was observed that the higher impact energy higher dose of the irradiating pulses resulted in increasing diameter of the melted area of the crater and the range of the strained region around it. Some features of the monochromatic and white beam back reflection section images of the craters were reproduced in numerically simulated images approximating the strain field in the crater by a droplet containing uniformly distributed point inclusions.

  20. PREFACE: 3rd International Youth Conference "Interdisciplinary Problems of Nanotechnology, Biomedicine and Nanotoxicology" (Nanobiotech 2015)

    Science.gov (United States)

    Refsnes, Magne, Prof; Gusev, Alexander, Dr; Godymchuk, Anna, Dr; Bogdan, Anna

    2015-11-01

    The 3rd International Youth Conference "Interdisciplinary Problems of Nanotechnology, Biomedicine and Nanotoxicology" (Nanobiotech2015) was held on 21-22 May 2015 in Tambov, Russia, and was jointly organized by Tambov Derzhavin State University (Russia), the Norwegian Institute of Public Health (Norway), the National University of Science and Technology MISiS (Russia), Tomsk Polytechnic University (Russia) and Tomsk State University. The conference gathered experienced and young researchers, post-docs and students, working in the fieldof nanotechnologies, nanomedicine, nano(eco)toxicology and risk assessment of nanomaterials, in order to facilitate the aggregation and sharing of interests and results for better collaboration and visibility of activity. The goal of Nanobiotech2015 was to bring researchers and practitioners together to share the latest knowledge on nanotechnology-specific risks to occupational and environmental health and assessing how to reduce these potential risks. The main objective of the conference is to identify, systematize and solve current scientific problems inthe sphere of nanobiotechnologies, nanomedicine and nanotoxicology, in order to join forces todetermine prospective areas and compose working groups of interested co-workers for carrying out interdisciplinary research projects. The topics of Nanobiotech2015 were: (1) Nanotechnologies in pharmaceutics and medicine; (2) Sources and mechanisms of nanoparticle release into the environment; (3) Ecological and biological effects of nanoparticles; (4) (Eco)toxicology of nanomaterials; (5) Methods for detection of nanoparticles in the environment and in biological objects; and (6) Physico-chemical properties of nanoparticles in the environment. We want to thank the Organizing Committee, the universities and sponsors supporting the conference,and everyone who contributed to the organization of this meeting, for their contribution towards the conference and for their contributions to these

  1. Catalysis in the 3rd Dimension: How Organic Molecules May be Formed

    Science.gov (United States)

    Freund, Friedemann; DeVincenzi, D. (Technical Monitor)

    2001-01-01

    Catalysis is often little more than a word to phenomenologically describe the fact that a reaction follows a pat1 that leads to products of an unexpected kind or of unexpected yield. Low activation energy barriers for intermediates are recognized as the most likely cause why a system deviates from the thermodynamic pull towards minimizing its free energy and ends up in a metastable state. Seldom is the mechanism known. This i: particularly true for heterogeneous catalysis under hydrothermal conditions with minerals as catalysts. It is commonly assumed that catalytic action takes place across solid-fluid interfaces and that, on the atomic level, interfaces are just 2-dimensional contacts. This makes it difficult to understand, for instance, the assembly of long-chain carboxylic (fatty) acids. 3y studying single crystals that grew from a melt in the presence of H2O and CO2, we can show: (1) that numerals take up the fluid components into solid solution, (2) that some-thing happens converting them to -educedH and C, (3) that C atoms segregate into dislocations and tie C-C bonds. The products are medium-to-long chain Cn protomolecules, with some C-H attached, pre-assembled in the dislocations. Upon solvent extraction, these proto-molecules turn into carboxylic and dicarboxylic acids. This observation suggests that, in a very elementary step, catalysis under hydrothermal conditions leading to fatty acids involves the pre-assembly of Cn entities in the interface that is not 2-D but extends into the 3rd dimension, with dislocations as synthesis sites.

  2. Knowledge and institutional requirements to promote land degradation neutrality in drylands - An analysis of the outcomes of the 3rd UNCCD scientific conference

    Science.gov (United States)

    Akhtar-Schuster, Mariam; Safriel, Uriel; Abraham, Elena; de Vente, Joris; Essahli, Wafa; Escadafal, Richard; Stringer, Lindsay

    2015-04-01

    Achieving land degradation neutrality (LDN) through sustainable land management (SLM) targets the maintenance or restoration of the productivity of land, and therefore has to include decision-makers, knowledge generators and knowledge holders at the different relevant geographic scales. In order to enhance the implementation of the Convention, the Conference of the Parties (COP) of the United Nations Convention to Combat Desertification therefore decided that each future session of its Committee on Science and Technology (CST) would be organized in a predominantly scientific and technical conference-style format. This contribution will outline the major outcomes of UNCCD's 3rd scientific conference that will be held in Cancún, Mexico, from 9 to 12 March 2015, on addressing desertification, land degradation and drought issues (DLDD) for poverty reduction and sustainable development. The conference follows an exceptional new round table conference format that will allow the various stakeholders to discuss scientific as well as the contribution of traditional knowledge and practices in combating land degradation. This format should provide two-way communication and enable deeper insight into the availability and contribution of all forms of knowledge for achieving LDN through the assessment of: • the vulnerability of lands to DLDD and climate change and the adaptive capacities of socio-ecosystems; • best examples of adapted, knowledge-based practices and technologies; • monitoring and assessment methods to evaluate the effectiveness of adaptation practices and technologies. The outcomes of UNCCD's 3rd scientific conference will serve as a basis for discussing: • contributions of science to diagnose the status of land; • research gaps that need to be addressed to achieve LDN for poverty reduction; • additional institutional requirements to optimally bridge knowledge generation, knowledge maintenance and knowledge implementation at the science

  3. PREFACE: 3rd International Workshop on Statistical Physics and Mathematics for Complex Systems (SPMCS 2012)

    Science.gov (United States)

    Tayurskii, Dmitrii; Abe, Sumiyoshi; Alexandre Wang, Q.

    2012-11-01

    The 3rd International Workshop on Statistical Physics and Mathematics for Complex Systems (SPMCS2012) was held between 25-30 August at Kazan (Volga Region) Federal University, Kazan, Russian Federation. This workshop was jointly organized by Kazan Federal University and Institut Supérieur des Matériaux et Mécaniques Avancées (ISMANS), France. The series of SPMCS workshops was created in 2008 with the aim to be an interdisciplinary incubator for the worldwide exchange of innovative ideas and information about the latest results. The first workshop was held at ISMANS, Le Mans (France) in 2008, and the third at Huazhong Normal University, Wuhan (China) in 2010. At SPMCS2012, we wished to bring together a broad community of researchers from the different branches of the rapidly developing complexity science to discuss the fundamental theoretical challenges (geometry/topology, number theory, statistical physics, dynamical systems, etc) as well as experimental and applied aspects of many practical problems (condensed matter, disordered systems, financial markets, chemistry, biology, geoscience, etc). The program of SPMCS2012 was prepared based on three categories: (i) physical and mathematical studies (quantum mechanics, generalized nonequilibrium thermodynamics, nonlinear dynamics, condensed matter physics, nanoscience); (ii) natural complex systems (physical, geophysical, chemical and biological); (iii) social, economical, political agent systems and man-made complex systems. The conference attracted 64 participants from 10 countries. There were 10 invited lectures, 12 invited talks and 28 regular oral talks in the morning and afternoon sessions. The book of Abstracts is available from the conference website (http://www.ksu.ru/conf/spmcs2012/?id=3). A round table was also held, the topic of which was 'Recent and Anticipated Future Progress in Science of Complexity', discussing a variety of questions and opinions important for the understanding of the concept of

  4. ic-cmtp3: 3rd International Conference on Competitive Materials and Technology Processes

    Science.gov (United States)

    2016-04-01

    Competitiveness is one of the most important factors in our lives and it plays a key role in the efficiency both of organizations and societies. The more scientifically advanced and prepared organizations develop more competitive materials with better physical, chemical, and biological properties, and the leading companies apply more competitive equipment and technological processes. The aims of the 3rd International Conference on Competitive Materials and Technology Processes (ic-cmtp3), and the 1st International Symposium on Innovative Carbons and Carbon Based Materials (is-icbm1) and the 1st International Symposium on Innovative Construction Materials (is-icm1) organized alongside are the following: —Promote new methods and results of scientific research in the fields of material, biological, environmental and technological sciences; —Exchange information between the theoretical and applied sciences as well as technical and technological implementations; —Promote communication and collaboration between the scientists, researchers and engineers of different nations, countries and continents. Among the major fields of interest are advanced and innovative materials with competitive characteristics, including mechanical, physical, chemical, biological, medical and thermal, properties and extreme dynamic strength. Their crystalline, nano - and micro-structures, phase transformations as well as details of their technological processes, tests and measurements are also in the focus of the ic-cmtp3 conference and the is-scbm1 and is-icm1 symposia. Multidisciplinary applications of material science and the technological problems encountered in sectors like ceramics, glasses, thin films, aerospace, automotive and marine industries, electronics, energy, construction materials, medicine, biosciences and environmental sciences are of particular interest. In accordance with the program of the ic-cmtp3 conference and is-icbm1 and is-icm1 symposia we have received more

  5. Building monument materials during the 3rd-4rd millennium (Portugal)

    Science.gov (United States)

    Moita, Patricia; Pedro, Jorge; Boaventura, Rui; Mataloto, Rui; Maximo, Jaime; Almeida, Luís; Nogueira, Pedro

    2014-05-01

    Dolmens are the most conspicuous remains of the populations of the 4th and first half of 3rd millennia BCE. These tombs are impressive not only for their monumentality, but also because of the socioeconomic investment they represent for those Neolithic communities, namely from the Central-South of Portugal, who built them. Although dolmens have been studied for their funerary content and typologies, an interdisciplinary approach toward the geological characterization and sourcing of stones used in these constructions has not received enough attention from researchers. With MEGAGEO project a multidisciplinary group of geologist and archaeologists intends to assess the relationship between the distribution of dolmens in Central-South Portugal, their source materials, and the geological landscape. GIS will map the information gathered and will be used to analyse these relationships. The selection of the areas, with distinctive geologies (limestone vs granite), will allow to verify if human patterns of behaviour regarding the selection of megaliths are similar or different regionally. Geologically the first target area (Freixo, Alentejo) is dominated by a small intrusion of gabbro mingled/mixed within a granodioritic intrusion both related with variscan orogeny. Granodiorite exhibit several enclaves of igneous and metamorphic nature attesting the interaction between both igneous rocks as well with enclosing gneisses. Despite Alentejo region have a reduced number of outcrops the granodiorite provides rounded to tabular metric blocks. The gabbro is very coarse grained, sometimes with a cumulate texture, and their fracturing and weathering provide very fresh tabular blocks. The five studied dolmens (Quinta do Freixo #1 to #5) are implanted in a large granodioritic intrusion, around the gabbroic rocks, within an area of approximately 9km2. The medium grained granodiorite is ubiquity in all the dolmens slabs and occasionally it can be observed features of mixing and

  6. Coronal MR imaging of the normal 3rd, 4th, and 5th lumbar and 1st sacral nerve roots

    Energy Technology Data Exchange (ETDEWEB)

    Hald, J.K.; Nakstad, P.H.; Hauglum, B.E. (National Hospital, Oslo (Norway). Dept. of Radiology)

    1991-05-01

    Seven healthy volunteers underwent coronal MR imaging at 1.5 tesla of the normal 3rd, 4th, and 5th lumbar, and 1st sacral nerve roots. Coronal slices, 3-mm-thick with a 0.3-mm gap between the slices were obtained (TR/TE 600/22) through the lumbar spinal canal. All the nerve roots were visible on at least one image. One can routinely expect to demonstrate the 3rd, 4th, and 5th lumbar, and 1st sacral nerve roots on T1-weighted, 3-mm-thick coronal MR scans. We found no correlation between the degree of lumbar lordosis and the lengths of the visible nerve roots. Five patients with one of the following spinal problems: anomaly, tumor, disk herniation, and failed back surgery syndrome were examined according to our protocol. In all these cases coronal MR imaging gave the correct diagnosis. (orig.).

  7. Mechanical design and engineering of the 3.9 GHZ, 3rd harmonic SRF system at Fermilab

    Energy Technology Data Exchange (ETDEWEB)

    Don Mitchell et al.

    2004-08-05

    The mechanical development of the 3.9 GHz, 3rd Harmonic SRF System is summarized to include: the development of a full scale copper prototype cavity structure; the design of the niobium 3 cell and niobium 9 cell structures; the design of the helium vessel and cryostat; the HOM coupler design; and a preliminary look at the main coupler design. The manufacturing processes for forming, rolling, and e-beam welding the HOM coupler, cavity cells, and end tubes are also described. Due to the exotic materials and manufacturing processes used in this type of device, a cost estimate for the material and fabrication is provided. The 3rd harmonic design is organized via a web-based data management approach.

  8. Plant chromatin warms up in Madrid: meeting summary of the 3rd European Workshop on Plant Chromatin 2013, Madrid, Spain.

    Science.gov (United States)

    Jarillo, José A; Gaudin, Valérie; Hennig, Lars; Köhler, Claudia; Piñeiro, Manuel

    2014-04-01

    The 3rd European Workshop on Plant Chromatin (EWPC) was held on August 2013 in Madrid, Spain. A number of different topics on plant chromatin were presented during the meeting, including new factors mediating Polycomb Group protein function in plants, chromatin-mediated reprogramming in plant developmental transitions, the role of histone variants, and newly identified chromatin remodeling factors. The function of interactions between chromatin and transcription factors in the modulation of gene expression, the role of chromatin dynamics in the control of nuclear processes and the influence of environmental factors on chromatin organization were also reported. In this report, we highlight some of the new insights emerging in this growing area of research, presented at the 3rd EWPC.

  9. Quarterly report on the electric power industry in the Federal Republic of Germany. 3rd quarter 1996. Power generation in publicly-owned electric utilities, the industrial independent units and the Federal Railways, and overall power consumption in the Federal Republic of Germany; Vierteljahresbericht ueber die Elektrizitaetswirtschaft in der Bundesrepublik Deutschland. 3. Vierteljahr 1996. Stromerzeugung der oeffentlichen Elektrizitaetswerke, der industriellen Eigenanlagen und der Deutschen Bahn AG sowie Gesamtstromverbrauch in der Bundesrepublik

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-02-01

    The report provides data on public electricity supply, on power generation in plants of the mining industry and the manufacturing industry, and on the German Federal Railways. The data have been derived from the monthly reports of the Federal Office of Statistics. (HS) [Deutsch] Der Bericht enthaelt Zahlen fuer die oeffentliche Versorgung, fuer die Eigenanlagen im Bergbau und Verarbeitenden Gewerbe und fuer die Deutsche Bundesbahn. Die Zahlen sind den monatlichen Berichten des Statistischen Bundesamtes entnommen. (HS)

  10. Quarterly report on the electric power industry in the Federal Republic of Germany. 3rd quarter 1997. Power generation in publicly-owned electric utilities, the industrial independent units and the Deutsche Bahn AG, and overall power consumption in the Federal Republic of Germany; Vierteljahresbericht ueber die Elektrizitaetswirtschaft in der Bundesrepublik Deutschland. 3. Vierteljahr 1997. Stromerzeugung der oeffentlichen Elektrizitaetswerke, der industriellen Eigenanlagen und der Deutschen Bahn AG sowie Gesamtstromverbrauch in der Bundesrepublik

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    The report provides data on public electricity supply, on power generation in plants of the mining industry and the manufacturing industry, and on the German Federal Railways. The data have been derived from the monthly reports of the Federal Office of Statistics. (orig.) [Deutsch] Der Bericht enthaelt Zahlen fuer die oeffentliche Versorgung, fuer die Eigenanlagen im Bergbau und Verarbeitenden Gewerbe und fuer die Deutsche Bundesbahn. Die Zahlen sind den monatlichen Berichten des Statistischen Bundesamtes entnommen. (orig.)

  11. Quarterly report on the electric power industry in the Federal Republic of Germany. 3rd quarter 1999. Power generation in publicly-owned electric utilities, the industrial independent units and the Deutsche Bahn AG, and overall power consumption in the Federal Republic of Germany; Vierteljahresbericht ueber die Elektrizitaetswirtschaft in der Bundesrepublik Deutschland. 3. Vierteljahr 1999. Stromerzeugung der oeffentlichen Elektrizitaetswerke, der industriellen Eigenanlagen und der Deutschen Bahn AG sowie Gesamtstromverbrauch in der Bundesrepublik

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, L.

    2000-02-01

    The report provides data on public electricity supply, on power generation plants of the mining industry and the manufacturing industry, and on the German Federal Railways. The data have been derived from the monthly reports of the Federal Office of Statistics. (HS) [German] Der Bericht enthaelt Zahlen fuer die oeffentliche Versorgung, fuer die Eigenanlagen im Bergbau und Verarbeitenden Gewerbe und fuer die Deutsche Bundesbahn. Die Zahlen sind den monatlichen Berichten des Statistischen Bundesamtes entnommen. (HS)

  12. Quarterly report on the electric power industry in the Federal Republic of Germany. 3rd quarter 1998. Power generation in publicly-owned electric utilities, the industrial independent units and the Deutsche Bahn AG, and overall power consumption in the Federal Republic of Germany; Vierteljahresbericht ueber die Elektrizitaetswirtschaft in der Bundesrepublik Deutschland. 3. Vierteljahr 1998. Stromerzeugung der oeffentlichen Elektrizitaetswerke, der industriellen Eigenanlagen und der Deutschen Bahn AG sowie Gesamtstromverbrauch in der Bundesrepublik

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, L.

    1999-02-01

    The report provides data on public electricity supply, on power generation in plants of the mining industry and the manufacturing industry, and on the German Federal Railways. The data have been derived from the monthly reports of the Federal Office of Statistics. (orig.) [Deutsch] Der Bericht enthaelt Zahlen fuer die oeffentliche Versorgung, fuer die Eigenanlagen im Bergbau und Verarbeitenden Gewerbe und fuer die Deutsche Bundesbahn. Die Zahlen sind den monatlichen Berichten des Statistischen Bundesamtes entnommen. (orig.)

  13. Neuropathology of ablation of rat gliosarcomas and contiguous brain tissues using a microplanar beam of synchrotron-wiggler-generated X rays.

    Science.gov (United States)

    Laissue, J A; Geiser, G; Spanne, P O; Dilmanian, F A; Gebbers, J O; Geiser, M; Wu, X Y; Makar, M S; Micca, P L; Nawrocky, M M; Joel, D D; Slatkin, D N

    1998-11-23

    Adult-rat-brain tissues display an unusually high resistance to necrosis when serially irradiated with parallel, thin slices of a microplanar (i.e., microscopically thin and macroscopically broad) beam of synchrotron-wiggler-generated, approx. 35-120 keV (median approx. 50 keV) Gd-filtered X rays at skin-entrance absorbed doses of 312 to 5000 Gy per slice. Such microplanar beams were used to irradiate young adult rats bearing right frontocerebral 9L gliosarcomas (approx. 4 mm diameter), through a volume of tissue containing the tumor and contiguous brain tissue, either in a single array or in 2 orthogonally crossed arrays of tissue slices. Each array included 101 parallel microplanar slices, 100 microm center-to-center distance, each slice being approx. 25 microm wide and 12 mm high, with skin-entrance absorbed doses of 312.5 Gy or 625 Gy per slice. Compared with unirradiated controls with a median survival time of 20 days after tumor initiation, the median survival time was extended in irradiated rats by 139 days (625 Gy, crossed arrays), 96 days (312 Gy, crossed arrays) or 24 days (625 Gy, single array). The tumors disappeared in 22 of the 36 irradiated rats, 4/11 even after unidirectional microbeam irradiation. The extent and severity of radiation damage to the normal brain in rats with or without tumor was graded histopathologically. Correlation of those grades with radiation doses shows that loss of tissue structure was confined to beam-crossing regions and that only minor damage was done to zones of the brain irradiated unidirectionally.

  14. A 3rd Order Low Power SI Sigma-Delta A/D Converter for Voice-Band Applications

    DEFF Research Database (Denmark)

    Jørgensen, Ivan Herald Holger; Bogason, Gudmundur

    1997-01-01

    This paper presents a 3rd order switched current-ΣΔ-modulator. The ΣΔ-modulator operates at a sampling rate of fs=600 kHz and the signal band is fb=5.5 kHz, i.e., an oversampling factor of R=54.5 is used. Multiple input signals are used to reduce the internal signal swings which results in reduced...

  15. Tunneling of the 3rd Kind: A Test of the Effective Non-locality of Quantum Field Theory

    OpenAIRE

    Gardiner, S. A.; Gies, H.; Jaeckel, J.; Wallace, C. J.

    2012-01-01

    Integrating out virtual quantum fluctuations in an originally local quantum field theory results in an effective theory which is non-local. In this Letter we argue that tunneling of the 3rd kind - where particles traverse a barrier by splitting into a pair of virtual particles which recombine only after a finite distance - provides a direct test of this non-locality. We sketch a quantum-optical setup to test this effect, and investigate observable effects in a simple toy model.

  16. EXPOSE-R2, the 3rd successful EXPOSE mission – a mission and mission ground reference overview

    OpenAIRE

    2016-01-01

    For nearly 2 years the 3rd ESA EXPOSE mission, the 2nd on the Russian Zvezda module of the ISS, exposed a variety of astrobiological samples to space and simulated Mars environmental conditions. Various chemical compounds and organisms like bacteria, archaea, fungi, plant seeds, lychens, mosses and animal eggs and larvae from the international experiments BIOMEX, BOSS, P.S.S. and the IBMP-experiment were exposed to space vacuums dryness, extraterrestrial short wavelength UV, radiation and tem...

  17. Addressing learning difficulties in Newtons 1st and 3rd Laws through problem based inquiry using Easy Java Simulation

    OpenAIRE

    Goh, Khoon Song Aloysius; Wee, Loo Kang; Yip, Kim Wah; Toh, Ping Yong Jeffrey; Lye, Sze Yee

    2013-01-01

    We develop an Easy Java Simulation (EJS) model for students to visualize Newtons 1st and 3rd laws, using frictionless constant motion equation and a spring collision equation during impact. Using Physics by Inquiry instructional (PbI) strategy, the simulation and its problem based inquiry worksheet aim to enhance learning of these two Newtonian concepts. We report results from Experimental (N=62 students) and Control (N=67) Groups in 11 multiple choice questions pre and post tests, conducted ...

  18. The high-resolution synchrotron-based imaging stations at the BAMline (BESSY) and TopoTomo (ANKA)

    Science.gov (United States)

    Rack, Alexander; Riesemeier, Heinrich; Zabler, Simon; Weitkamp, Timm; Müller, Bernd R.; Weidemann, Gerd; Modregger, Peter; Banhart, John; Helfen, Lukas; Danilewsky, Andreas N.; Gräber, Hans G.; Heldele, Richard; Mayzel, Boaz; Goebbels, Jürgen; Baumbach, Tilo

    2008-08-01

    The BAMline at the BESSY light source in Berlin and the TopoTomo beamline at the ANKA synchrotron facility in Karlsruhe (both Germany) operate in the hard X-ray regime (above 6 keV) with similiar photon flux density. For typical imaging applications, a double multilayer monochromator or a filtered white beam is used. In order to optimise the field of view and the resolution of the available indirect pixel detectors, different optical systems have been installed, adapted, respectively, to a large field of view (macroscope) and to high spatial resolution (microscope). They can be combined with different camera systems, ranging from 16-bit dynamic range slow-scan CCDs to fast CMOS cameras. The spatial resolution can be brought substantially beyond the micrometer limit by using a Bragg magnifier. The moderate flux of both beamlines compared to other 3rd generation light sources is compensated by a dedicated scintillator concept. For selected applications, X-ray beam collimation has proven to be a reliable approach to increase the available photon flux density. Absorption contrast, phase contrast, holotomography and refraction-enhanced imaging are used depending on the application. Additionally, at the TopoTomo beamline digital white beam synchrotron topography is performed, using the digital X-ray pixel detectors installed.

  19. Additional circular intercostal space created by bifurcation of the left 3rd rib and its costal cartilage: a case report

    Directory of Open Access Journals (Sweden)

    Kumar Naveen

    2013-01-01

    Full Text Available Abstract Introduction In the thorax there are normally 11 pairs of intercostal spaces: the spaces between adjacent ribs. The intercostal spaces contain intercostal muscles, intercostal nerves and vessels. Case presentation During a routine dissection for undergraduate medical students, we observed a variation involving the left 3rd rib and 3rd costal cartilage in the cadaver of a man of Indian ethnicity aged about 65 years. The left 3rd rib and its costal cartilage were bifurcated at their costochondral junction enclosing a small circular additional intercostal space. Muscle tissue covered by deep fascia was present in this circular intercostal space. The muscle in the circular intercostal space received its nerve supply from a branch of the 2nd intercostal nerve. Conclusions Knowledge of such variations is helpful to surgeons operating on the anterior thoracic wall involving ribs and intercostal spaces. Knowing the possibility of the presence of an additional space between normal intercostal spaces can guide a surgeon through to a successful surgery.

  20. Addressing learning difficulties in Newtons 1st and 3rd Laws through problem based inquiry using Easy Java Simulation

    CERN Document Server

    Goh, Khoon Song Aloysius; Yip, Kim Wah; Toh, Ping Yong Jeffrey; Lye, Sze Yee

    2013-01-01

    We develop an Easy Java Simulation (EJS) model for students to visualize Newtons 1st and 3rd laws, using frictionless constant motion equation and a spring collision equation during impact. Using Physics by Inquiry instructional (PbI) strategy, the simulation and its problem based inquiry worksheet aim to enhance learning of these two Newtonian concepts. We report results from Experimental (N=62 students) and Control (N=67) Groups in 11 multiple choice questions pre and post tests, conducted by three teachers in the school. Results suggest, at 95 percent confidence level, significant improvement for concept of Newtons 1st Law while not so for Newtons 3rd Law. A Focus Group Discussion revealed students confirming the usefulness of the EJS model in visualizing the 1st Law while not so much for the 3rd Law. We speculate the design ideas for constant velocity motion in the computer model coupled with the PbI worksheet did allow for making sense and experiencing of the 1st Law, where traditional pen-paper represen...

  1. FOREWORD: 3rd International Workshop on New Computational Methods for Inverse Problems (NCMIP 2013)

    Science.gov (United States)

    Blanc-Féraud, Laure; Joubert, Pierre-Yves

    2013-10-01

    Conference logo This volume of Journal of Physics: Conference Series is dedicated to the scientific contributions presented during the 3rd International Workshop on New Computational Methods for Inverse Problems, NCMIP 2013 (http://www.farman.ens-cachan.fr/NCMIP_2013.html). This workshop took place at Ecole Normale Supérieure de Cachan, in Cachan, France, on 22 May 2013, at the initiative of Institut Farman. The prior editions of NCMIP also took place in Cachan, France, firstly within the scope of the ValueTools Conference, in May 2011 (http://www.ncmip.org/2011/), and secondly at the initiative of Institut Farman, in May 2012 (http://www.farman.ens-cachan.fr/NCMIP_2012.html). The NCMIP Workshop focused on recent advances in the resolution of inverse problems. Indeed inverse problems appear in numerous scientific areas such as geophysics, biological and medical imaging, material and structure characterization, electrical, mechanical and civil engineering, and finances. The resolution of inverse problems consists of estimating the parameters of the observed system or structure from data collected by an instrumental sensing or imaging device. Its success firstly requires the collection of relevant observation data. It also requires accurate models describing the physical interactions between the instrumental device and the observed system, as well as the intrinsic properties of the solution itself. Finally, it requires the design of robust, accurate and efficient inversion algorithms. Advanced sensor arrays and imaging devices provide high rate and high volume data; in this context, the efficient resolution of the inverse problem requires the joint development of new models and inversion methods, taking computational and implementation aspects into account. During this one-day workshop, researchers had the opportunity to bring to light and share new techniques and results in the field of inverse problems. The topics of the workshop were: algorithms and computational

  2. PREFACE: 3rd Workshop on Theory, Modelling and Computational Methods for Semiconductors (TMCSIII)

    Science.gov (United States)

    Califano, Marco; Migliorato, Max; Probert, Matt

    2012-05-01

    These conference proceedings contain the written papers of the contributions presented at the 3rd International Conference on Theory, Modelling and Computational Methods for Semiconductor materials and nanostructures. The conference was held at the School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK on 18-20 January 2012. The previous conferences in this series took place in 2010 at St William's College, York and in 2008 at the University of Manchester, UK. The development of high-speed computer architectures is finally allowing the routine use of accurate methods for calculating the structural, thermodynamic, vibrational, optical and electronic properties of semiconductors and their hetero- and nano-structures. The scope of this conference embraces modelling, theory and the use of sophisticated computational tools in semiconductor science and technology, where there is substantial potential for time-saving in R&D. Theoretical approaches represented in this meeting included: Density Functional Theory, Tight Binding, Semiempirical Pseudopotential Methods, Effective Mass Models, Empirical Potential Methods and Multiscale Approaches. Topics included, but were not limited to: Optical and Transport Properties of Quantum Nanostructures including Colloids and Nanotubes, Plasmonics, Magnetic Semiconductors, Graphene, Lasers, Photonic Structures, Photovoltaic and Electronic Devices. This workshop ran for three days, with the objective of bringing together UK and international leading experts in the theoretical modelling of Group IV, III-V and II-VI semiconductors, as well as students, postdocs and early-career researchers. The first day focused on providing an introduction and overview of this vast field, aimed particularly at students, with several lectures given by recognised experts in various theoretical approaches. The following two days showcased some of the best theoretical research carried out in the UK in this field, with several

  3. Preoperative and Postoperative (1st and 3rd Month Metabolic Data of Patients Who Underwent Bariatric Surgery

    Directory of Open Access Journals (Sweden)

    Nilüfer Özdemir Kutbay

    2015-03-01

    Full Text Available Purpose: The growing prevalence of obesity has become a major concern. The efficacy of medical treatment, diet and behavior therapy in morbidly obese patients is limited. Obesity surgery is a treatment option for selected morbidly obese patients. Material and Method: Data of 47 patients (n=39 women, 8 men who underwent bariatric surgery were investigated. Results: Out of 47 patients, 20 underwent Roux-en-Y gastric bypass (RYGB (43% and 27 had sleeve gastrectomy (SG (57%. The mean age of the patients was 37±9.5 (19-59 years. 17% of patients were men and 83% were women. In the analysis of data on weight that could be found for 31 out of 47 patients, we detected preoperative and postoperative (1st and 3rd month mean weight values as 125.4±15.9 kg, 112.7±13.2 kg (p<0.001 and 100.9±17.5 kg (p<0.001, respectively. In addition, the analysis of the data on mean fasting plasma glucose (FPG levels which could be found for 23 out of 47 patients, showed us that preoperative and postoperative (1st and 3rd month FPG levels were 100.9±17.5 mg/dL, 91.6±10.9 mg/dL (p=0.03 and 87.3±2.0 mg/dL, respectively. Only 1 patient had diabetes before the surgery. In the RYGB group, the mean change in weight was 12.4±5.5 kg in the 1st month and 22.2±8.6 kg in the 3rd month (compared to the weights in the preoperative period. Moreover, in the SG group, the mean change in weight was 13.7±4.5 kg in the 1st month and 23.4±5.8 kg in the 3rd month. No statistically significant difference was found between the weight changes in the 1st and the 3rd month as for surgery types. Discussion: After bariatric surgery, significant loss in weight and reduction in FPG occurred in short-term.

  4. EDITORIAL: Photonica 2011: 3rd International School and Conference on Photonics Photonica 2011: 3rd International School and Conference on Photonics

    Science.gov (United States)

    Petrović, Jovana; Stepić, Milutin; Hadžievski, Ljupčo

    2012-04-01

    Photonics is a rapidly growing discipline of physics that investigates properties of light and its interaction with matter and develops devices based on these properties. Due to both the fundamental and applied nature of photonics research, it pervades many branches of modern technology: quantum mechanics, material science, electronics, telecommunications, biology, medicine, material processing, etc. The borders between these subjects are being erased, generating new research areas such as silicon photonics, biophotonics and quantum photonics. Diverse branches of photonics are united in a common effort to further miniaturize photonic devices, integrate them with existing technologies and develop new technologies. The International School and Conference on Photonics—Photonica—is a biennial forum for the education of young scientists, exchanging new knowledge and ideas, and fostering collaboration between scientists working in photonic science and technology. Conference topics cover a broad range of research activities in optical materials, metamaterials and plasmonics, nonlinear optics, lasers, laser spectroscopy, biophotonics, optoelectronics, optocommunications, photonic crystals, holography, quantum optics and related topics in atomic physics. The aim of the organizers is to provide a platform for discussing new developments, concepts and future trends of various disciplines of photonics by bringing together researchers from academia, government and industrial laboratories. The educational element of Photonica—a series of tutorials and keynote talks—enables students and young researchers to better understand the fundamentals and their use on a route to applications, and informs both young and experienced scientists of new directions of research. The introductory lectures that are directly related to the state-of-the-art are followed by presentations and discussions on recent results during oral and vibrant poster presentations. This Topical Issue is

  5. Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring

    Institute of Scientific and Technical Information of China (English)

    MA Zhen-Yu; MA Guang-Ming; YU Hai-Bo; MAO Dong-Qing; FENG Zi-Qiang; HOU Hong-Tao; LIU Jian-Fei

    2009-01-01

    A third harmonic superconducting niobium cavity has been proposed for installation in the Shang-hai Synchrotron Radiation Facility (SSRF) storage ring to improve the Touschek lifetime. In order to investigate the feasibility of the superconducting cavity fabrication indigenously and the possibility to master the fabrica-tion techniques, cavities were fabricated from copper and niobium sheets by deep drawing and electron-beam welding, and a series of measurements, such as resonant frequency, shape dimensions and wall thickness, were carried out during this process. After analysis of various problems existing in the fabrication process, tech-nique improvements were proposed, and finally the precise shape as designed and resonant frequency within 1.2 MHz were achieved for the new completed cavities. In addition, full annealing was finally proved to be a good cure for niobium sheets' tearing up during deep drawing. By fabricating niobium cavities successfully, some problems to the next step were cleared. This paper introduces the process of cavity fabrication and its technique improvements towards forming, and the initial vertical test result of niobium cavity is also presented.

  6. Studies of longitudinal profile of electron bunches and impedance measurements at Indus-2 synchrotron radiation source

    Science.gov (United States)

    Garg, Akash Deep; Yadav, S.; Kumar, Mukesh; Shrivastava, B. B.; Karnewar, A. K.; Ojha, A.; Puntambekar, T. A.

    2016-04-01

    Indus-2 is a 3rd generation synchrotron radiation source at the Raja Ramanna Centre for Advanced Technology (RRCAT) in India. We study the longitudinal profile of electrons in Indus-2 by using dual sweep synchroscan streak camera at visible diagnostic beamline. In this paper, the longitudinal profiles of electron bunch are analyzed by filling beam current in a single bunch mode. These studies are carried at injection energy (550 MeV) and at ramped beam energy (2.5 GeV). The effects of the wakefield generated interactions between the circulating electrons and the surrounding vacuum chamber are analyzed in terms of measured effects on longitudinal beam distribution. The impedance of the storage ring is obtained by fitting the solutions of Haissinski equation to the measured bunch lengthening with different impedance models. The impedance of storage ring obtained by a series R+L impedance model indicates a resistance (R) of 1350±125 Ω, an inductance (L) of 180±25 nH and broadband impedance of 2.69 Ω. These results are also compared with the values obtained from measured synchronous phase advancing and scaling laws. These studies are very useful in better understanding and control of the electromagnetic interactions.

  7. Operational Radiation Protection in Synchrotron Light and Free Electron Laser Facilities

    Energy Technology Data Exchange (ETDEWEB)

    Liu, James C.; Rokni, Sayed H.; /SLAC; Vylet, Vaclav; /Jefferson Lab

    2009-12-11

    The 3rd generation synchrotron radiation (SR) facilities are storage ring based facilities with many insertion devices and photon beamlines, and have low injection beam power (< few tens of watts), but extremely high stored beam power ({approx} 1 GW). The 4th generation x-ray free electron laser (FEL) facilities are based on an electron Linac with a long undulator and have high injection beam power (a few kW). Due to its electron and photon beam characteristics and modes of operation, storage ring and photon beamlines have unique safety aspects, which are the main subjects of this paper. The shielding design limits, operational modes, and beam losses are first reviewed. Shielding analysis (source terms and methodologies) and interlocked safety systems for storage ring and photon beamlines (including SR and gas bremsstrahlung) are described. Specific safety issues for storage ring top-off injection operation and FEL facilities are discussed. The operational safety program, e.g., operation authorization, commissioning, training, and radiation measurements, for SR facilities is also presented.

  8. The Australian synchrotron; Le synchrotron australien

    Energy Technology Data Exchange (ETDEWEB)

    Farhi, R

    2005-06-15

    This document recalls the historical aspects of the Australian Synchrotron which will be implemented in 2007. It presents then the objectives of this program, the specifications of the ring and the light lines. (A.L.B.)

  9. Backscattering analyzer geometry as a straightforward and precise method for monochromator characterization at third-generation synchrotron-radiation sources (abstract)

    Science.gov (United States)

    Snigirev, A. A.; Lequien, S.; Suvorov, A. Yu.

    1995-02-01

    With the assessment of the third generation of synchrotron-radiation sources, insertion devices (ID) are going to become extensively used. The choice of the ID field configuration allows the optimization of the photon flux at the desired energy. This attractive situation results in a much higher flux on optical elements, mainly on monochromators for which new cooling schemes have to be developed. These latter must be characterized under operating conditions and generally, the figure of merit for monochromators is the rocking curve (RC) measurement. By varying the ID field, the monochromator may be fully characterized with regard to the heat load. To achieve this aim, we have proposed and tested a double-crystal setup where a Si analyzer crystal installed in backscattering geometry (BSG) is coupled with a silicon p-i-n photodiode as the detection system (Fig. 1). The analyzer was a standard Si wafer (111) orientation, from which we used the following Bragg reflections: 333, 444, 555, 777, 888, 999, ... to measure the RCs of monochromators keeping the analyzer fixed. We were then able to probe the formers at the respective energies 5.9, 7.9, 9.9, 13.8, 15.8, 17.8 keV, etc. Setting the analyzer crystal in BSG, we get several-fold benefits from the method: (1) A very good angular resolution (˜10-6 rad) when one combines the BSG analyzer with narrow slits (˜100 μm). (2) A high-energy resolution yielding to a calibration of the monochromator with an accuracy better than 1 eV. (3) The analyzer crystal attenuates the reflected intensity which avoids the use of any scatterer foil to count the number of photons. We directly used photodiodes which are well known to respond linearly to radiation intensities and to have a high dynamic range (more than 6 decades). (4) No fine mechanics is needed for the analyzer, just a simple manual turntable can be used to set the analyzer in BSG through the utilization of a laser beam. Results on different tests for operating liquid-N2

  10. Experimental demonstration of the induction synchrotron.

    Science.gov (United States)

    Takayama, Ken; Arakida, Yoshio; Dixit, Tanuja; Iwashita, Taiki; Kono, Tadaaki; Nakamura, Eiji; Otsuka, Kazunori; Shimosaki, Yoshito; Torikai, Kota; Wake, Masayoshi

    2007-02-01

    We report an experimental demonstration of the induction synchrotron, the concept of which has been proposed as a future accelerator for the second generation of neutrino factory or hadron collider. The induction synchrotron supports a superbunch and a superbunch permits more charge to be accelerated while observing the constraints of the transverse space-charge limit. By using a newly developed induction acceleration system instead of radio-wave acceleration devices, a single proton bunch injected from the 500 MeV booster ring and captured by the barrier bucket created by the induction step voltages was accelerated to 6 GeV in the KEK proton synchrotron.

  11. Color Portion of Solar Radiation in the Partial Annular Solar Eclipse, October 3rd, 2005, at Helwan, Egypt

    OpenAIRE

    A. H. Hassan; U. A. Rahoma; Sabry, M; A. M. Fathy

    2010-01-01

    Measurements were made of various solar radiation components, global, direct and diffuse and their fractions during the partial annular solar eclipse on October 3rd, 2005 at Helwan, Egypt (Lat. 29.866◦ N and Long. 31.20◦ E), and an analysis has been made. The duration of the solar eclipse was 3 h 17 min, and the maximum magnitude of the eclipse in this region was 0.65. The optical depth of the direct component and the relative humidity decreased, while both the transparency and the air temper...

  12. Summary of the 3rd International Workshop on a Far Detector in Korea for the J-PARC Beam

    CERN Document Server

    Kajita, T; Rubbia, André

    2008-01-01

    The 3rd International Workshop on a Far Detector in Korea for the J-PARC Neutrino Beam was held at the Hongo Campus of Tokyo University, Tokyo, Japan on Sep. 30th and October 1, 2007. Forty seven physicists from Japan and Korea, as well as Europe and USA, participated in the workshop and discussed the physics opportunities offered by the J-PARC conventional neutrino beam detected by a new large underground neutrino detector in Korea. In this paper, we highlight some of the most relevant findings of the workshop.

  13. Influence of solar eclipse of November 3rd, 2013 on the total ozone column over Badajoz, Spain

    OpenAIRE

    Mateos, D.; M. Antón; Vaquero, J. M.

    2014-01-01

    The hybrid eclipse of November 3rd, 2013 was observed as partial with a magnitude equal to 0.126 from Badajoz (38^\\circ 53' N, 6^\\circ 58' W). The evolution of the Total Ozone Column (TOC) values during 4 hours was monitored using a Solar Light Microtops-II manual sun-photometer. Before the eclipse, TOC remained invariable ~280 Dobson Units (DU) for one hour and a half. Once the eclipse was started, a clear decrease in TOC occurred. After the eclipse maximum (with TOC = 273 DU), a rapid TOC r...

  14. Influence of solar eclipse of November 3rd, 2013 on the total ozone column over Badajoz, Spain

    CERN Document Server

    Mateos, D; Vaquero, J M

    2014-01-01

    The hybrid eclipse of November 3rd, 2013 was observed as partial with a magnitude equal to 0.126 from Badajoz (38^\\circ 53' N, 6^\\circ 58' W). The evolution of the Total Ozone Column (TOC) values during 4 hours was monitored using a Solar Light Microtops-II manual sun-photometer. Before the eclipse, TOC remained invariable ~280 Dobson Units (DU) for one hour and a half. Once the eclipse was started, a clear decrease in TOC occurred. After the eclipse maximum (with TOC = 273 DU), a rapid TOC recovery was observed. When the eclipse was over, TOC came back to values ~280 DU.

  15. “Patenting Bioprinting Technologies in the US and Europe– The 5th element in the 3rd dimension"

    DEFF Research Database (Denmark)

    Minssen, Timo; Mimler, Marc

    2017-01-01

    of bioprinting- inventions are being patented or would be- protectable under European and US patent laws. Rather than focusing on the highly relevant questions that 3D printing poses for patent infringement doctrines and research exemptions , this paper concentrates on the question of patentable subject matter......, “Patenting Bioprinting Technologies in the US and Europe– The 5th element in the 3rd dimension", Working Paper, forthcoming in: RM Ballardini, M Norrgård & J Partanen (red), 3D printing, Intellectual Property and Innovation – Insights from Law and Technology. Wolters Klu. Available at https...

  16. Tunnelling of the 3rd kind: A test of the effective non-locality of quantum field theory

    Science.gov (United States)

    Gardiner, Simon A.; Gies, Holger; Jaeckel, Joerg; Wallace, Chris J.

    2013-03-01

    Integrating out virtual quantum fluctuations in an originally local quantum field theory results in an effective theory which is non-local. In this letter we argue that tunnelling of the 3rd kind —where particles traverse a barrier by splitting into a pair of virtual particles which recombine only after a finite distance— provides a direct test of this non-locality. We sketch a quantum-optical setup to test this effect, and investigate observable effects in a simple toy model.

  17. “Patenting Bioprinting Technologies in the US and Europe– The 5th element in the 3rd dimension"

    DEFF Research Database (Denmark)

    Minssen, Timo; Mimler, Marc

    2017-01-01

    of bioprinting- inventions are being patented or would be- protectable under European and US patent laws. Rather than focusing on the highly relevant questions that 3D printing poses for patent infringement doctrines and research exemptions , this paper concentrates on the question of patentable subject matter......, “Patenting Bioprinting Technologies in the US and Europe– The 5th element in the 3rd dimension", Working Paper, forthcoming in: RM Ballardini, M Norrgård & J Partanen (red), 3D printing, Intellectual Property and Innovation – Insights from Law and Technology. Wolters Klu. Available at SSRN: https://ssrn.com/abstract=...

  18. 3rd Quarter Transportation Report FY2015: Radioactive Waste Shipments to and from the Nevada National Security Site (NNSS)

    Energy Technology Data Exchange (ETDEWEB)

    Gregory, Louis B. [National Security Technologies, LLC (NSTec), Las Vegas, NV (United States)

    2015-07-01

    This report satisfies the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Field Office (NNSA/NFO) commitment to prepare a quarterly summary report of radioactive waste shipments to and from the Nevada National Security Site (NNSS) Radioactive Waste Management Complex (RWMC) at Area 5. There were no shipments sent for offsite treatment and returned to the NNSS this quarter. This report summarizes the 3rd quarter of Fiscal Year (FY) 2015 low-level radioactive waste (LLW) and mixed low-level radioactive waste (MLLW) shipments.

  19. Synchrotron radiation facilities

    CERN Multimedia

    1972-01-01

    Particularly in the past few years, interest in using the synchrotron radiation emanating from high energy, circular electron machines has grown considerably. In our February issue we included an article on the synchrotron radiation facility at Frascati. This month we are spreading the net wider — saying something about the properties of the radiation, listing the centres where synchrotron radiation facilities exist, adding a brief description of three of them and mentioning areas of physics in which the facilities are used.

  20. Research at the CEA in the field of safety in 2nd and 3rd generation light water reactors

    Science.gov (United States)

    Billot, Philippe

    2012-05-01

    The research programs at the CEA in the field of safety in nuclear reactors are carried out in a framework of international partnerships. Their purpose is to develop studies on: The methods allowing for the determination of earthquake hazards and their consequences; The behaviour of fuel in an accident situation; The comprehension of deflagration and detonation phenomena of hydrogen and the search for effective prevention methods involving an explosion risk; The cooling of corium in order to stop its progression in and outside the vessel thereby reducing the risk of perforating the basemat; The behaviour of the different fission product families according to their volatility for the UO2 and MOX fuels.

  1. What is waveform library? Advances in EPG science made possible by the 3rd generation AC-DC universal monitor

    Science.gov (United States)

    Until recently, most Electrical Penetration Graph (EPG) studies have emphasized small-bodied sternorrhynchans, auchenorrhynchans, and thrips. EPG holds the potential to significantly improve research on a wider array of species, such as large heteropterans and blood-sucking vectors of medical/veteri...

  2. Analysis and Design of a 3rd Order Velocity-Controlled Closed-Loop for MEMS Vibratory Gyroscopes

    Directory of Open Access Journals (Sweden)

    Ji-wei Jiao

    2013-09-01

    Full Text Available The time-average method currently available is limited to analyzing the specific performance of the automatic gain control-proportional and integral (AGC-PI based velocity-controlled closed-loop in a micro-electro-mechanical systems (MEMS vibratory gyroscope, since it is hard to solve nonlinear functions in the time domain when the control loop reaches to 3rd order. In this paper, we propose a linearization design approach to overcome this limitation by establishing a 3rd order linear model of the control loop and transferring the analysis to the frequency domain. Order reduction is applied on the built linear model’s transfer function by constructing a zero-pole doublet, and therefore mathematical expression of each control loop’s performance specification is obtained. Then an optimization methodology is summarized, which reveals that a robust, stable and swift control loop can be achieved by carefully selecting the system parameters following a priority order. Closed-loop drive circuits are designed and implemented using 0.35 μm complementary metal oxide semiconductor (CMOS process, and experiments carried out on a gyroscope prototype verify the optimization methodology that an optimized stability of the control loop can be achieved by constructing the zero-pole doublet, and disturbance rejection capability (D.R.C of the control loop can be improved by increasing the integral term.

  3. Analysis and design of a 3rd order velocity-controlled closed-loop for MEMS vibratory gyroscopes.

    Science.gov (United States)

    Wu, Huan-ming; Yang, Hai-gang; Yin, Tao; Jiao, Ji-wei

    2013-09-18

    The time-average method currently available is limited to analyzing the specific performance of the automatic gain control-proportional and integral (AGC-PI) based velocity-controlled closed-loop in a micro-electro-mechanical systems (MEMS) vibratory gyroscope, since it is hard to solve nonlinear functions in the time domain when the control loop reaches to 3rd order. In this paper, we propose a linearization design approach to overcome this limitation by establishing a 3rd order linear model of the control loop and transferring the analysis to the frequency domain. Order reduction is applied on the built linear model's transfer function by constructing a zero-pole doublet, and therefore mathematical expression of each control loop's performance specification is obtained. Then an optimization methodology is summarized, which reveals that a robust, stable and swift control loop can be achieved by carefully selecting the system parameters following a priority order. Closed-loop drive circuits are designed and implemented using 0.35 μm complementary metal oxide semiconductor (CMOS) process, and experiments carried out on a gyroscope prototype verify the optimization methodology that an optimized stability of the control loop can be achieved by constructing the zero-pole doublet, and disturbance rejection capability (D.R.C) of the control loop can be improved by increasing the integral term.

  4. AN ANALYSIS OF STUDENTS’ SPEAKING ABILITY IN ENGLISH CONVERSATION CLUB (ECC PROGRAM AT THE 3rd SEMESTER

    Directory of Open Access Journals (Sweden)

    M. Fadhly Farhy Abbas

    2017-07-01

    Full Text Available This research is based on students’ speaking ability who had followed the EnglishConversation Club (ECC program especially for the third semester of English Department. Thepurpose of this study was to analyze the students’ speaking ability at the 3rd semester in the EnglishConversation Club FKIP UNILAK Pekanbaru. The type of the research was mixed method in typeof explanatory design. The number of participant was 53 students. The researcher used twoinstruments, those were test and interview. In analyzing the data, it used in descriptive statistics.The result of the analysis showed that the average score of 3rd semester students’ speaking abilitywas 45.42. It can be concluded that the students’ speaking ability was categorized into failed . Thescore of Standard Deviation was 7.02, Variance was 49.30, and Range was 36 points . It meansthat the students’ speaking ability was homogeneous. According to the Z-Score, it can be seen that49.06% students’ ability was higher than average and 50.94% students ability was below theaverage. In conclusion, the students’ ability in learning speaking English was failed, it had beenaffected by some factors, those were lack of vocabulary, grammar and motivation. It was supportedby the interview, eventhough the students’ perception to English Conversation Club (ECCprogram was positive, but in fact, the students’ frequency to speak English was seldom, they wereless practice speaking English everyday.Keywords : Speaking , English Conversation Club (ECC

  5. Computational Humor 2012 : extended abstacts of the (3rd international) Workshop on computational Humor

    NARCIS (Netherlands)

    Nijholt, Antinus; Unknown, [Unknown

    2012-01-01

    Like its predecessors in 1996 (University of Twente, the Netherlands) and 2002 (ITC-irst, Trento, Italy), this Third International Workshop on Computational Humor (IWCH 2012) focusses on the possibility to find algorithms that allow understanding and generation of humor. There is the general aim of

  6. 3rd congress on applied synthetic biology in Europe (Costa da Caparica, Portugal, February 2016).

    Science.gov (United States)

    Cueva, Miguel

    2017-03-25

    The third meeting organised by the European Federation of Biotechnology (EFB) on advances in Applied Synthetic Biotechnology in Europe (ASBE) was held in Costa da Caparica, Portugal, in February 2016. Abundant novel applications in synthetic biology were described in the six sessions of the meeting, which was divided into technology and tools for synthetic biology (I, II and III), bionanoscience, biosynthetic pathways and enzyme synthetic biology, and metabolic engineering and chemical manufacturing. The meeting presented numerous methods for the development of novel synthetic strains, synthetic biological tools and synthetic biology applications. With the aid of synthetic biology, production costs of chemicals, metabolites and food products are expected to decrease, by generating sustainable biochemical production of such resources. Also, such synthetic biological advances could be applied for medical purposes, as in pharmaceuticals and for biosensors. Recurrent, linked themes throughout the meeting were the shortage of resources, the world's transition into a bioeconomy, and how synthetic biology is helping tackle these issues through cutting-edge technologies. While there are still limitations in synthetic biology research, innovation is propelling the development of technology, the standardisation of synthetic biological tools and the use of suitable host organisms. These developments are laying a foundation to providing a future where cutting-edge research could generate potential solutions to society's pressing issues, thus incentivising a transition into a bioeconomy.

  7. Measuring the bunch frequency multiplication at the 3rd CLIC Test Facility

    CERN Document Server

    Dabrowski, AE; Bravin, E; Corsini, R; Dobert, S; Lefevre, T; Rabiller, A; Soby, L; Skowronski, P K; Tecker, F; Egger, D; Ferrari, A; Welsch, C P

    2012-01-01

    The CLIC Test Facility 3 (CTF3) is being built and commissioned by an international collaboration to test the feasibility of the proposed Compact Linear Collider (CLIC) drive beam generation scheme. Central to this scheme is the use of RF deflectors to inject bunches into a delay loop and a combiner ring, in order to transform the initial bunch frequency of 1.5 GHz from the linac to a final bunch frequency of 12 GHz. To do so, the machine's transverse optics must be tuned to ensure beam isochronicity and each ring's length can finally be adjusted with wiggler magnets to a sub millimeter path length accuracy. Diagnostics based on optical streak camera and RF power measurements, in particular frequency bands, have been designed to measure the longitudinal behaviour of the beam during the combination. This paper presents the diagnostics and recent commissioning measurements.

  8. Color Portion of Solar Radiation in the Partial Annular Solar Eclipse, October 3rd, 2005, at Helwan, Egypt

    Directory of Open Access Journals (Sweden)

    A. H. Hassan

    2010-01-01

    Full Text Available Measurements were made of various solar radiation components, global, direct and diffuse and their fractions during the partial annular solar eclipse on October 3rd, 2005 at Helwan, Egypt (Lat. 29.866◦ N and Long. 31.20◦ E, and an analysis has been made. The duration of the solar eclipse was 3 h 17 min, and the maximum magnitude of the eclipse in this region was 0.65. The optical depth of the direct component and the relative humidity decreased, while both the transparency and the air temperature increased towards the maximum eclipse. The general trends of the global components are decreasing optical depth and increasing transparency between the first contact and the last contact. The prevailing color during the eclipse duration was diffused infrared (77 % of the total diffuse radiation level.

  9. Use of 2nd and 3rd Level Correlation Analysis for Studying Degradation in Polycrystalline Thin-Film Solar Cells

    Energy Technology Data Exchange (ETDEWEB)

    Albin, D. S.; del Cueto, J. A.; Demtsu, S. H.; Bansal, S.

    2011-03-01

    The correlation of stress-induced changes in the performance of laboratory-made CdTe solar cells with various 2nd and 3rd level metrics is discussed. The overall behavior of aggregated data showing how cell efficiency changes as a function of open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF) is explained using a two-diode, PSpice model in which degradation is simulated by systematically changing model parameters. FF shows the highest correlation with performance during stress, and is subsequently shown to be most affected by shunt resistance, recombination and in some cases voltage-dependent collection. Large decreases in Jsc as well as increasing rates of Voc degradation are related to voltage-dependent collection effects and catastrophic shunting respectively. Large decreases in Voc in the absence of catastrophic shunting are attributed to increased recombination. The relevance of capacitance-derived data correlated with both Voc and FF is discussed.

  10. THE 3rd SCHIZOPHRENIA INTERNATIONAL RESEARCH SOCIETY CONFERENCE, 14-18 APRIL 2012, FLORENCE, ITALY: SUMMARIES OF ORAL SESSIONS

    Science.gov (United States)

    Abbs, Brandon; Achalia, Rashmin M; Adelufosi, Adegoke O; Aktener, Ahmet Yiğit; Beveridge, Natalie J; Bhakta, Savita G; Blackman, Rachael K; Bora, Emre; Byun, MS; Cabanis, Maurice; Carrion, Ricardo; Castellani, Christina A; Chow, Tze Jen; Dmitrzak-Weglarz, M; Gayer-Anderson, Charlotte; Gomes, Felipe V; Haut, Kristen; Hori, Hiroaki; Kantrowitz, Joshua T; Kishimoto, Taishiro; Lee, Frankie HF; Lin, Ashleigh; Palaniyappan, Lena; Quan, Meina; Rubio, Maria D; Ruiz de Azúa, Sonia; Sahoo, Saddichha; Strauss, Gregory P; Szczepankiewicz, Aleksandra; Thompson, Andrew D; Trotta, Antonella; Tully, Laura M; Uchida, Hiroyuki; Velthorst, Eva; Young, Jared W; O’Shea, Anne; DeLisi, Lynn E.

    2013-01-01

    The 3rd Schizophrenia International Research Society Conference was held in Florence, Italy, April 14-18, 2012.and this year had as its emphasis, “The Globalization of Research”. Student travel awardees served as rapporteurs for each oral session and focused their summaries on the most significant findings that emerged and the discussions that followed. The following report is a composite of these summaries. We hope that it will provide an overview for those who were present, but could not participate in all sessions, and those who did not have the opportunity to attend, but who would be interested in an update on current investigations ongoing in the field of schizophrenia research. PMID:22910407

  11. ICoVax 2013: the 3rd ISV Pre-conference Computational Vaccinology Workshop.

    Science.gov (United States)

    De Groot, Anne S; De Groot, Phoebe; He, Yongqun

    2014-01-01

    Following last year's computational vaccinology workshop in Shanghai, China, the third ISV Pre-conference Computational Vaccinology Workshop (ICoVax 2013) was held in Barcelona, Spain. ICoVax 2013 provided an international platform for the attendees to showcase their research and discuss problems and solutions in the development and application of computational vaccinology and vaccine informatics tools. The first of the three full-length papers presented at ICoVax discussed the discovery of viral "camouflage" through cross-conservation of T-cell epitopes using a tool called JanusMatrix. This important paper reports that viruses may camouflage their presence in the human body by incorporating sequences in their proteins that are highly cross-conserved at the T-cell receptor surface with human genome proteins, a discovery that has wide ranging implications for the development of vaccines against viruses that use the camouflage method. The other papers described a database for storing experimentally verified data on DNA vaccines and compared therapeutic targets of western drugs to Chinese herbal medicines for cardiovascular diseases. The short poster presentations covered various uses of informatics tools for processing the DNA and microRNA of pathogens to improve vaccine coverage, efficacy and development. A live (on-line) demonstration of the vaccine design toolkit, iVax, presented by Frances Terry of EpiVax, illustrated how computational vaccinology could be used in the design of next generation vaccines.

  12. Methodology Guidelines on Life Cycle Assessment of Photovoltaic Electricity: 3rd Edition

    Energy Technology Data Exchange (ETDEWEB)

    Frischknecht, Rolf; Heath, Garvin; Raugei, Marco; Sinha, Parikhit; de Wild-Scholten, Mariska

    2016-01-01

    Life Cycle Assessment (LCA) is a structured, comprehensive method of quantifying material- and energy-flows and their associated emissions caused in the life cycle of goods and services. The ISO 14040 and 14044 standards provide the framework for LCA. However, this framework leaves the individual practitioner with a range of choices that can affect the results and thus the conclusions of an LCA study. The current IEA guidelines were developed to provide guidance on assuring consistency, balance, and quality to enhance the credibility and reliability of the results from LCAs on photovoltaic (PV) electricity generation systems. The guidelines represent a consensus among the authors - PV LCA experts in North America, Europe, and Asia - for assumptions made on PV performance, decisions on process input and emissions allocation, methods of analysis, and reporting of the results. Guidance is given on PV-specific parameters used as inputs in LCA and on choices and assumptions in life cycle inventory (LCI) data analysis and on implementation of modeling approaches. A consistent approach towards system modeling, the functional unit, the system boundaries, water use modeling and the allocation aspects enhances the credibility of PV electricity LCA studies and enables balanced LCA-based comparisons of different electricity producing technologies. The document discusses metrics like greenhouse gas emissions (GHG), cumulative energy demand (CED), acidification potential (AP), ozone depletion potential (ODP), human toxicity, ecotoxicity and ionizing radiation. Guidance is given for the definition of the energy payback time (EPBT), the nonrenewable energy payback time (NREPBT), and the impact mitigation potentials (IMP). The indicator energy return on investment (EROI) is described in a separate International Energy Agency (IEA) PV Power Systems (PVPS) Task 12 report (Raugei et al. 2015). The guidelines on the reporting and communication of the results serve the need for

  13. Inauguration of Proton Synchrotron

    CERN Multimedia

    1960-01-01

    On 5 February 1960, the Proton Synchrotron (PS) was formally inaugurated. The great Danish physicist, Niels Bohr, releases a bottle of champagne against a shielding block to launch the PS on its voyage in physics.

  14. FOREWORD: 3rd Symposium on Large TPCs for Low Energy Event Detection

    Science.gov (United States)

    Irastorza, Igor G.; Colas, Paul; Gorodetzky, Phillippe

    2007-05-01

    The Third International Symposium on large TPCs for low-energy rare-event detection was held at Carré des sciences, Poincaré auditorium, 25 rue de la Montagne Ste Geneviève in Paris on 11 12 December 2006. This prestigious location belonging to the Ministry of Research is hosted in the former Ecole Polytechnique. The meeting, held in Paris every two years, gathers a significant community of physicists involved in rare event detection. Its purpose is an extensive discussion of present and future projects using large TPCs for low energy, low background detection of rare events (low-energy neutrinos, dark matter, solar axions). The use of a new generation of Micro-Pattern Gaseous Detectors (MPGD) appears to be a promising way to reach this goal. The program this year was enriched by a new session devoted to the detection challenge of polarized gamma rays, relevant novel experimental techniques and the impact on particle physics, astrophysics and astronomy. A very particular feature of this conference is the large variety of talks ranging from purely theoretical to purely experimental subjects including novel technological aspects. This allows discussion and exchange of useful information and new ideas that are emerging to address particle physics experimental challenges. The scientific highlights at the Symposium came on many fronts: Status of low-energy neutrino physics and double-beta decay New ideas on double-beta decay experiments Gamma ray polarization measurement combining high-precision TPCs with MPGD read-out Dark Matter challenges in both axion and WIMP search with new emerging ideas for detection improvements Progress in gaseous and liquid TPCs for rare event detection Georges Charpak opened the meeting with a talk on gaseous detectors for applications in the bio-medical field. He also underlined the importance of new MPGD detectors for both physics and applications. There were about 100 registered participants at the symposium. The successful

  15. Synchrotron based spallation neutron source concepts

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Y.

    1998-07-01

    During the past 20 years, rapid-cycling synchrotrons (RCS) have been used very productively to generate short-pulse thermal neutron beams for neutron scattering research by materials science communities in Japan (KENS), the UK (ISIS) and the US (IPNS). The most powerful source in existence, ISIS in the UK, delivers a 160-kW proton beam to a neutron-generating target. Several recently proposed facilities require proton beams in the MW range to produce intense short-pulse neutron beams. In some proposals, a linear accelerator provides the beam power and an accumulator ring compresses the pulse length to the required {approx} 1 {micro}s. In others, RCS technology provides the bulk of the beam power and compresses the pulse length. Some synchrotron-based proposals achieve the desired beam power by combining two or more synchrotrons of the same energy, and others propose a combination of lower and higher energy synchrotrons. This paper presents the rationale for using RCS technology, and a discussion of the advantages and disadvantages of synchrotron-based spallation sources.

  16. 3rd SAGA Workshop

    CERN Document Server

    Conti, Giuseppe

    2014-01-01

    Mathematical algorithms are a fundamental component of Computer Aided Design and Manufacturing (CAD/CAM) systems. This book provides a bridge between algebraic geometry and geometric modelling algorithms, formulated within a computer science framework. Apart from the algebraic geometry topics covered, the entire book is based on the unifying concept of using algebraic techniques – properly specialized to solve geometric problems – to seriously improve accuracy, robustness and efficiency of CAD-systems. It provides new approaches as well as industrial applications to deform surfaces when animating virtual characters, to automatically compare images of handwritten signatures, and to improve control of NC machines. This book further introduces a noteworthy representation based on 2D contours, which is essential to model the metal sheet in industrial processes. It additionally reviews applications of numerical algebraic geometry to differential equations systems with multiple solutions and bifurcations. Futur...

  17. 3rd Cryocooler Conference

    CERN Document Server

    Louie, Berverly; McCarthy, Sandy

    1985-01-01

    Cryocoolers 3 documents the output of the Third Cryocooler Conference, held at the National Bureau of Standards, Boulder, Colorado, on September 17-18, 1984. About 140 people from 10 countries attended the conference representing industry, government, and academia. A total of 26 papers were presented orally at the conference and all appear in written form in the proceedings. The focus of this conference was on small cryocoolers in the temperature range of 4 - 80 K. Mechanical and nonmechanical types are discussed in the various papers. Applications of these small cryocoolers include the cooling of infrared detectors, cryopumps, small superconducting devices and magnets, and electronic devices. The conference proceedings reproduced here was published by the National Bureau of Standards in Boulder, Colorado as NBS Special Publication #698.

  18. 3rd Abel Symposium

    CERN Document Server

    Owren, Brynjulf

    2008-01-01

    The 2006 Abel symposium is focusing on contemporary research involving interaction between computer science, computational science and mathematics. In recent years, computation has been affecting pure mathematics in fundamental ways. Conversely, ideas and methods of pure mathematics are becoming increasingly important within computational and applied mathematics. At the core of computer science is the study of computability and complexity for discrete mathematical structures. Studying the foundations of computational mathematics raises similar questions concerning continuous mathematical structures. There are several reasons for these developments. The exponential growth of computing power is bringing computational methods into ever new application areas. Equally important is the advance of software and programming languages, which to an increasing degree allows the representation of abstract mathematical structures in program code. Symbolic computing is bringing algorithms from mathematical analysis into the...

  19. 3rd IDPASC School

    CERN Document Server

    Lectures on particle physics, astrophysics and cosmology

    2015-01-01

    This volume gathers the content of the courses held at the Third IDPASC School, which took place in San Martiño Pinario, Hospederia and Seminario Maior, in the city of Santiago de Compostela, Galiza, Spain, from January 21st to February 2nd, 2013. This school is the annual joint program of the International Doctorate Network in Particle Physics, Astrophysics, and Cosmology (IDPASC).   The purpose of the school series is to present doctoral students from different universities and laboratories in Europe and beyond with a broad range of the latest results and current state of the art in the fields of Particle Physics, Astrophysics, and Cosmology, and to further introduce them to both the questions now posed by the potentials of physics and to challenges connected with current and future experiments – in particular, with the newly available energy ranges.   Following these guidelines, the content of this third edition of the IDPASC School was jointly planned by the Academic Council and by the network’s In...

  20. A Stochastic Slow Extraction Scheme For U70 Synchrotron

    CERN Document Server

    Ivanov, S

    2004-01-01

    Outcomes of a feasibility study for a low-budget sto-chastic slow extraction system in the U70 proton synchro-tron of IHEP are reported. The existing 200 MHz (spill) RF system is to be employed as a longitudinal kicker. It will be driven by a sum of a non-random RF carrier plus an additive random amplitude-modulated signal - either quadrature or in-phase, or both. A few novel solutions to be implemented in the longitudinal diffusion technique that would force protons into the conventional 3-rd order transverse extraction resonance are foreseen so as to com-ply with the technical constraints inherent in U70. Getting a-few-seconds-long and high-quality spills is assessed as being viable with the system in question.

  1. Future Synchrotron Radiation Sources

    CERN Document Server

    Winick, Herman

    2003-01-01

    Sources of synchrotron radiation (also called synchrotron light) and their associated research facilities have experienced a spectacular growth in number, performance, and breadth of application in the past two to three decades. In 1978 there were eleven electron storage rings used as light sources. Three of these were small rings, all below 500 mega-electron volts (MeV), dedicated to this purpose; the others, with energy up to 5 giga-electron volts (GeV), were used parasitically during the operation of the ring for high energy physics research. In addition, at that time synchrotron radiation from nine cyclic electron synchrotrons, with energy up to 5 GeV, was also used parasitically. At present no cyclic synchrotrons are used, while about 50 electron storage rings are in operation around the world as fully dedicated light sources for basic and applied research in a wide variety of fields. Among these fields are structural molecular biology, molecular environmental science, materials, analytic chemistry, micr...

  2. To keep the catch – that is the question: a personal account of the 3rd Annual EULAR Congress, Stockholm

    Science.gov (United States)

    Wollheim, Frank A

    2002-01-01

    The 3rd Annual EULAR Congress, held in Stockholm on 12–15 June 2002, had a turnout of 8300 delegates, almost identical to last year's record attendance level in Prague. The venue was close to ideal, allowing ample space for poster sessions in the exhibition hall. The manned poster sessions were well attended, even on the last day of the Congress. The numerous invited speakers represented the world's elite, allowing the staging of excellent state-of-the-art podium sessions. The aim of attracting the young scientific community was partly achieved, but individual delegates' dependence on industry sponsorship poses potential problems. The organization was a big improvement compared to that of the two previous congresses. Approximately 1800 abstracts were submitted, an increase of 50%, resulting in a higher quality of accepted abstracts. The satellite symposia held every morning and late afternoon were well attended; thus, industry exposure of new products, both in podium sessions and at the exhibitions, was well accommodated. The Annual EULAR Congress consolidates its position as one of the two most important annual congresses of rheumatology, but EULAR economy and commercial aspects are still too dominant in relation to science. PMID:12223107

  3. See the light: electrophysiological characterization of the Bolwig organ's light response of Calliphora vicina 3rd instar larvae.

    Science.gov (United States)

    Hinnemann, Axel; Niederegger, Senta; Hanslik, Ulrike; Heinzel, H-G; Spiess, Roland

    2010-11-01

    The anatomy and development of the larval cyclorraphous Diptera visual system is well established. It consists of the internal Bolwig organ (BO), and the associated nerve connecting it to the brain. The BO contributes to various larval behaviors but was never electrophysiologically characterized. We recorded extracellulary from the Bolwig nerve of 3rd instar Calliphora vicina larvae to quantify the sensory response caused by BO stimulation with light stimuli of different wavelengths, intensities and directions. Consistent with previous behavioral experiments we found the BO most sensitive to white and green, followed by blue, yellow, violet and red light. The BO showed a phasic-tonic response curve. Increasing light intensity produced a sigmoid response curve with an approximate threshold of 0.0105 nW/cm(2) and a dynamic range from 0.105 nW/cm(2) to 52.5 nW/cm(2). No differences exist between feeding and wandering larvae which display opposed phototaxis. This excludes reduced BO sensitivity from causing the switch in behavior. Correlating to the morphology of the BO frontal light evoked the maximal reaction, while lateral light reduced the neural response asymmetrically: Light applied ipsilaterally to the recorded BO always produced a stronger response than when applied from the contralateral side. This implies that phototacic behavior is based on a tropotactic mechanism.

  4. Evaluation of a model of dissertation supervision for 3rd year B.Sc. undergraduate nursing students.

    Science.gov (United States)

    Scholefield, Donna; Cox, Georgina

    2016-03-01

    All English universities now offer an all degree undergraduate nursing programme. Many currently use an individual supervision model to support final year dissertation students, but with increased numbers and limited resources new models of supervision are needed. This study evaluated a mixed (group and individual) model of dissertation supervision to determine its effectiveness for a large group of undergraduate nursing students. A sample of 3rd year students and their supervisors were selected from one large university. An evaluation survey was conducted using anonymous internet-based questionnaires and focus groups. The data was analysed using Survey Monkey, SPSS and thematic analysis. A 51% (n = 56/110) response rate (students) and 65% (n = 24/37) for supervisors was obtained. The majority of students and supervisors were satisfied with the new model. There was a mixed response to the group workshops and supervision groups. Three themes emerged from the qualitative data: engaging with the process, motivation to supervise and valuing the process. The supervision process is a struggle but both parties gained considerably from going through the process. In conclusion, a mixed model of supervision together with a range of other learning resources can be an effective approach in supporting students through the dissertation process.

  5. Psychometric properties and validation of Portuguese version of Ages & Stages Questionnaires (3rd edition): 9, 18 and 30 Questionnaires.

    Science.gov (United States)

    Lopes, Sónia; Graça, Patrícia; Teixeira, Salete; Serrano, Ana Maria; Squires, Jane

    2015-09-01

    The essential underlying foundations of Early Intervention (EI), in which parents/family play a critical role in their child's development, leads us to conclude that their contribution assessing early detection of problems is fundamental. The Ages & Stages Questionnaires (ASQ) is a standardized screening instrument that has been successfully studied in different countries and cultures. Translate and study the psychometrics proprieties of the Portuguese version of the 9, 18 and 30month questionnaires of the Ages and Stages Questionnaires, 3rd edition (ASQ-3). Cross-sectional study. Validity and reliability were studied in a sample of 234 parents of children within 9, 18 and 30months. The results indicated that the questionnaires had good internal consistency, strong agreement between observers and between observations with two weeks interval, and strong Pearson product-moment correlation coefficients between the overall and the total for each domain. The cutoff points (i.e. 2 standard deviations below the mean domain score), that identifies children who should receive further referral for more comprehensive assessment, were close to those determined in the original ASQ-3 psychometric studies. Cronbach's alpha ranging from .42 to .70 and Pearson's r values varies from .22 to .60. Although some weaknesses were noted in psychometric qualities analysis, it can be concluded that the ASQ-PT of 9, 18 and 30months of age fulfills the requirements of a screening tool validated for the Portuguese population. To allow the early identification of children with developmental problems. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  6. The 3rd Canadian Symposium on Hepatitis C Virus: Expanding Care in the Interferon-Free Era

    Directory of Open Access Journals (Sweden)

    Sonya A MacParland

    2014-01-01

    Full Text Available Hepatitis C virus (HCV currently infects approximately 250,000 individuals in Canada and causes more years of life lost than any other infectious disease in the country. In August 2011, new therapies were approved by Health Canada that have achieved higher response rates among those treated, but are poorly tolerated. By 2014/2015, short-course, well-tolerated treatments with cure rates >95% will be available. However, treatment uptake is poor due to structural, financial, geographical, cultural and social barriers. As such, ‘Barriers to access to HCV care in Canada’ is a crucial topic that must be addressed to decrease HCV disease burden and potentially eliminate HCV in Canada. Understanding how to better care for HCV-infected individuals requires integration across multiple disciplines including researchers, clinical services and policy makers to address the major populations affected by HCV including people who inject drugs, baby boomers, immigrants and Aboriginal and/or First Nations people. In 2012, the National CIHR Research Training Program in Hepatitis C organized the 1st Canadian Symposium on Hepatitis C Virus (CSHCV in Montreal, Quebec. The 2nd CSHCV was held in 2013 in Victoria, British Columbia. Both symposia were highly successful, attracting leading international faculty with excellent attendance leading to dialogue and knowledge translation among attendees of diverse backgrounds. The current article summarizes the 3rd CSHCV, held February 2014, in Toronto, Ontario.

  7. When should orthostatic blood pressure changes be evaluated in elderly: 1st, 3rd or 5th minute?

    Science.gov (United States)

    Soysal, Pinar; Aydin, Ali Ekrem; Koc Okudur, Saadet; Isik, Ahmet Turan

    2016-01-01

    Detection of orthostatic hypotension (OH) is very important in geriatric practice, since OH is associated with mortality, ischemic stroke, falls, cognitive failure and depression. It was aimed to determine the most appropriate time for measuring blood pressure in transition from supine to upright position in order to diagnose OH in elderly. Comprehensive geriatric assessment (CGA) including Head up Tilt Table (HUT) test was performed in 407 geriatric patients. Orthostatic changes were assessed separately for the 1st, 3rd and 5th minutes (HUT1, HUT3 and HUT5, respectively) taking the data in supine position as the basis. The mean age, recurrent falls, presence of dementia and Parkinson's disease, number of drugs, alpha-blocker and anti-dementia drug use, and fasting blood glucose levels were significantly higher in the patients with versus without OH; whereas, albumin and 25-hydroxy vitamin D levels were significantly lower (pfasting blood glucose level was prominent in HUT1 as compared to HUT3 (p<0.01, p<0.05). Comparison of the patients that had OH only in HUT1, HUT3or HUT5 revealed no difference in terms of CGA parameters. These results suggests that orthostatic blood pressure changes determined at the 1st minute might be more important for geriatric practice. Moreover, 1st minute measurement might be more convenient in the elderly as it requires shorter time in practice.

  8. Ultrastructure of the ovary of Dermatobia hominis (Diptera: cuterebridae. I. Development during the 3rd larval instar

    Directory of Open Access Journals (Sweden)

    E. A. Gregorio

    1990-09-01

    Full Text Available The ultrastructure and distribution of gonial and somatic cells in the ovary of Dermatobia hominis was studied during the 3rd larval instar. In larvae weighing between 400 and 500 mg, the ovary is partially divided into basal and apical regions by oblong somatic cells that penetrate from the periphery; these cells show ovoid nucleus and cytoplasm full of microtubules. In both regions, gonial cells with regular outlines, large nucleus and low electron-density cytoplasm are scattered among the interstitial somatic cells. These later cells have small nucleus and electrodense cytoplasm. Clear somatic cells with small nucleus and cytoplasm of very low electron-density are restrict to the apical region of the gonad. Degenerating interstitial somatic cells are seen in the basal portion close to the ovary peduncle. During all this larval period the morphological features of the ovary remain almost the same. At the end of the period there is a gradual deposition of glycogen in the cytoplasm of the somatic cells, increase in the number and density of their mitochondria plus nuclear modification as membrane wrinkling and chromatin condensation in masses.

  9. Palaeopathology of human remains of the 1st century BC–3rd century AD from Armenia (Beniamin, Shirakavan I

    Directory of Open Access Journals (Sweden)

    Khudaverdyan Anahit Yu.

    2015-06-01

    Full Text Available The aim of this article was to document the pathology of the individuals from the archeological sites of Beniamin and Shirakavan I, Armenia, dated on the 1st century BC - 3rd century AD. The findings revealed that two groups differed in mean age at death of adults. At Beniamin it was 24 years, 40.8 years for males and 30.9 years for females, whereas at Shirakavanit it was 29.3 years, 29.6 years for males and 35.8 years for females. The greatest mortality appeared to have occurred when the children reached the age of one year (Beniamin. The population had high number of young-adult females with a cause of death associated with child-bearing. Very few females survived to old age. Traumatic conditions (63.64% and enamel hypoplasias (57.2% have a high frequency in the skeletal material from Shirakavan. The volume of selection of Shirakavan does not allow itself to so big discussion as it was possible with the Beniamin site. Fewer hypoplasias in Beniamin group indicate that food resources were more abundant and more easily exploited. The small frequency of a periodontal disorder indicates that dental hygiene was good during the Antiquity period. We here report a case of possible pituitary dwarfism and a case of decapitation.

  10. The ESO/VLT 3rd year Type Ia supernova data set from the Supernova Legacy Survey

    CERN Document Server

    Balland, C; Basa, S; Mouchet, M; Howell, D A; Astier, P; Carlberg, R G; Conley, A; Fouchez, D; Guy, J; Hardin, D; Hook, I M; Pain, R; Perrett, K; Pritchet, C J; Regnault, N; Rich, J; Sullivan, M; Antilogus, P; Arsenijevic, V; Du, J Le; Fabbro, S; Lidman, C; Mourao, A; Palanque-Delabrouille, Nathalie; Pécontal, E; Ruhlmann-Kleider, V

    2009-01-01

    We present 139 spectra of 124 Type Ia supernovae (SNeIa) that were observed at the ESO/VLT during the first three years of the Canada-France-Hawai Telescope (CFHT) Supernova Legacy Survey (SNLS). This homogeneous data set is used to test for redshift evolution of SNeIa spectra, and will be used in the SNLS 3rd year cosmological analyses. Spectra have been reduced and extracted with a dedicated pipeline that uses photometric information from deep CFHT Legacy Survey (CFHT-LS) reference images to trace, at sub-pixel accuracy, the position of the supernova on the spectrogram as a function of wavelength. It also separates the supernova and its host light in 60% of cases. The identification of the supernova candidates is performed using a spectrophotometric SNIa model. A total of 124 SNeIa, roughly 50% of the overall SNLS spectroscopic sample, have been identified using the ESO/VLT during the first three years of the survey. Their redshifts range from z=0.149 to z=1.031. The average redshift of the sample is z=0.63...

  11. Sublexical spelling deficits in German 3rd graders with developmental language impairment: the effects of phonological-awareness training

    Directory of Open Access Journals (Sweden)

    Jürgen Cholewa

    2013-12-01

    Full Text Available Numerous treatment studies conducted with dyslexic children from divergent alphabetic systems support the assumption that phonological awareness and consequently alphabetic reading and spelling can be trained effectively in preschool and during the first two years of literacy acquisition. However, for older primary school children acquiring a transparent orthography, such as German, these training approaches are considered to be ineffective, because in these languages the comparably simple relations between phonemes and graphemes can be understood even by most dyslexic children up to the end of the second grade. In this paper evidence is provided that this optimistic prediction should not be generalized to all subgroups of dyslexic/dysgraphic children in German. The 26 dyslexic German 3rd graders from specialized schools for children with developmental speech and language impairments who participated in a treatment study showed severe difficulties when they were asked to write simple pseudowords based on dictation or to segment these pseudowords phonemically. Even after 10 hours of training with one of two different treatment approaches the performance of these children in writing and analyzing pseudowords only improved to a limited extent and remained far below an age appropriate level. Consequences for the development of more efficacious methods to help improve the alphabetic spelling skills of German children with particularly severe and persistent orthographic and phonological difficulties are discussed.

  12. SYNCHROTRON RADIATION SOURCES

    Energy Technology Data Exchange (ETDEWEB)

    HULBERT,S.L.; WILLIAMS,G.P.

    1998-07-01

    Synchrotron radiation is a very bright, broadband, polarized, pulsed source of light extending from the infrared to the x-ray region. It is an extremely important source of Vacuum Ultraviolet radiation. Brightness is defined as flux per unit area per unit solid angle and is normally a more important quantity than flux alone particularly in throughput limited applications which include those in which monochromators are used. It is well known from classical theory of electricity and magnetism that accelerating charges emit electromagnetic radiation. In the case of synchrotron radiation, relativistic electrons are accelerated in a circular orbit and emit electromagnetic radiation in a broad spectral range. The visible portion of this spectrum was first observed on April 24, 1947 at General Electric's Schenectady facility by Floyd Haber, a machinist working with the synchrotron team, although the first theoretical predictions were by Lienard in the latter part of the 1800's. An excellent early history with references was presented by Blewett and a history covering the development of the utilization of synchrotron radiation was presented by Hartman. Synchrotron radiation covers the entire electromagnetic spectrum from the infrared region through the visible, ultraviolet, and into the x-ray region up to energies of many 10's of kilovolts. If the charged particles are of low mass, such as electrons, and if they are traveling relativistically, the emitted radiation is very intense and highly collimated, with opening angles of the order of 1 milliradian. In electron storage rings there are three possible sources of synchrotron radiation; dipole (bending) magnets; wigglers, which act like a sequence of bending magnets with alternating polarities; and undulators, which are also multi-period alternating magnet systems but in which the beam deflections are small resulting in coherent interference of the emitted light.

  13. PREFACE: Special section featuring selected papers from the 3rd International Workshop on Numerical Modelling of High Temperature Superconductors Special section featuring selected papers from the 3rd International Workshop on Numerical Modelling of High Temperature Superconductors

    Science.gov (United States)

    Granados, Xavier; Sánchez, Àlvar; López-López, Josep

    2012-10-01

    The development of superconducting applications and superconducting engineering requires the support of consistent tools which can provide models for obtaining a good understanding of the behaviour of the systems and predict novel features. These models aim to compute the behaviour of the superconducting systems, design superconducting devices and systems, and understand and test the behavior of the superconducting parts. 50 years ago, in 1962, Charles Bean provided the superconducting community with a model efficient enough to allow the computation of the response of a superconductor to external magnetic fields and currents flowing through in an understandable way: the so called critical-state model. Since then, in addition to the pioneering critical-state approach, other tools have been devised for designing operative superconducting systems, allowing integration of the superconducting design in nearly standard electromagnetic computer-aided design systems by modelling the superconducting parts with consideration of time-dependent processes. In April 2012, Barcelona hosted the 3rd International Workshop on Numerical Modelling of High Temperature Superconductors (HTS), the third in a series of workshops started in Lausanne in 2010 and followed by Cambridge in 2011. The workshop reflected the state-of-the-art and the new initiatives of HTS modelling, considering mathematical, physical and technological aspects within a wide and interdisciplinary scope. Superconductor Science and Technology is now publishing a selection of papers from the workshop which have been selected for their high quality. The selection comprises seven papers covering mathematical, physical and technological topics which contribute to an improvement in the development of procedures, understanding of phenomena and development of applications. We hope that they provide a perspective on the relevance and growth that the modelling of HTS superconductors has achieved in the past 25 years.

  14. Strategies for bird conservation: The Partners in Flight planning process; Proceedings of the 3rd Partners in Flight Workshop; 1995 October 1-5; Cape May, NJ

    Science.gov (United States)

    Rick Bonney; David N. Pashley; Robert J. Cooper; Larry Niles

    2000-01-01

    This volume represents a compilation of papers presented at the 3rd International Partners in Flight Workshop held October 1-5, 1995, at the Grand Hotel in Cape May, NJ. The title of the workshop was "Partners in Flight Conservation Plan: Building Consensus for Action." Manuscripts have been available on-line at the Cornell Laboratory of Ornithology web site...

  15. for video describing a prestigious Government of Canada prize which the Canadian team in ALPHA will be awarded on February 3rd

    CERN Multimedia

    2013-01-01

    Footage for video describing a prestigious Government of Canada prize which the Canadian team in ALPHA will be awarded on February 3rd 2014. On the video: -Mic-Michael Hayden (Simon Fraser Univ.) -Walter Hardy (Univ. of British Columbia) -Andrea Capra (York Univ.)hael Hayden (Simon Fraser Univ.)

  16. Traditional Chinese Medicine Playing a More Important Role in the World's Complementary Medicine Research——Minutes of the 3rd International Congress on Complementary Medicine Research

    Institute of Scientific and Technical Information of China (English)

    FEI Yu-tong; LIU Jian-ping

    2008-01-01

    @@ Outline The 3rd Intemational Congress on Complementary Medicine Research(ICCMR 2008)was held on 29-31 March,2008 in Sydney,Australia.More than 550 participants from over 30 countries in the diverse field of complementary medicine attended this great event.

  17. Effectively utilising a 3rd party 3D visualization component in a discrete event simulation environment for Joint Command and Control (JC2)

    CSIR Research Space (South Africa)

    Ramadeen, P

    2009-09-01

    Full Text Available A 3rd party 3-dimensional visualization tool (developed by the Council for Scientific and Industrial Research (CSIR)) is being used to visualize and assist with the development of a synthetic environment for joint command and control technology...

  18. Implications of Technology for Teaching and Learning. Annual Professional Education Seminar of Central States Colleges and Universities (3rd, November, 1967).

    Science.gov (United States)

    Woodruff, Asahel; Froyen, Len

    This report of the proceedings of the 3rd Annual Professional Education Seminar of the Central States Colleges and Universities centers upon the implications of technology for teaching and learning and contains addresses delivered, including "Some Concerns Related to Technology in Education," by Len Froyen; and "Implications of Technology for…

  19. RF gymnastics in synchrotrons

    CERN Document Server

    Garoby, R

    2011-01-01

    The RF systems installed in synchrotrons can be used to change the longitudinal beam characteristics. 'RF gymnastics' designates manipulations of the RF parameters aimed at providing such non-trivial changes. Some keep the number of bunches constant while changing bunch length, energy spread, emittance, or distance between bunches. Others are used to change the number of bunches. After recalling the basics of longitudinal beam dynamics in a hadron synchrotron, this paper deals with the most commonly used gymnastics. Their principle is described as well as their performance and limitations.

  20. RF Gymnastics in Synchrotrons

    CERN Document Server

    Garoby, R

    2005-01-01

    The RF systems installed in synchrotrons can be used to change the longitudinal beam characteristics. "RF gymnastics" designates manipulations of the RF parameters aimed at providing such non-trivial changes. Some keep the number of bunches constant while changing bunch length, energy spread, emittance or distance between bunches. Others are used to change the number of bunches. After recalling the basics of longitudinal beam dynamics in a hadron synchrotron, this paper deals with the most commonly used gymnastics. Their principle is described as well as their performance and limitations.

  1. Compact synchrotron light sources

    CERN Document Server

    Weihreter, Ernst

    1996-01-01

    This book covers a new niche in circular accelerator design, motivated by the promising industrial prospects of recent micromanufacturing methods - X-ray lithography, synchrotron radiation-based micromachining and microanalysis techniques. It describes the basic concepts and the essential challenges for the development of compact synchrotron radiation sources from an accelerator designer's point of view and gives an outline of the actual state of the art. The volume is intended as an introduction and as a reference for physicists, engineers and managers involved in this rapidly developing fiel

  2. Fifth school on Magnetism and Synchrotron Radiation

    CERN Document Server

    Beaurepaire, Eric; Scheurer, Fabrice; Kappler, Jean-Paul; Magnetism and Synchrotron Radiation : New Trends

    2010-01-01

    Advances in the synthesis of new materials with often complex, nano-scaled structures require increasingly sophisticated experimental techniques that can probe the electronic states, the atomic magnetic moments and the magnetic microstructures responsible for the properties of these materials. At the same time, progress in synchrotron radiation techniques has ensured that these light sources remain a key tool of investigation, e.g. synchrotron radiation sources of the third generation are able to support magnetic imaging on a sub-micrometer scale. With the Fifth Mittelwihr School on Magnetism and Synchrotron Radiation the tradition of teaching the state-of-the-art on modern research developments continues and is expressed through the present set of extensive lectures provided in this volume. While primarily aimed at postgraduate students and newcomers to the field, this volume will also benefit researchers and lecturers actively working in the field.

  3. High Magnetic Field Superconducting Magnets Fabricated In Budker Inp For Sr Generation

    CERN Document Server

    Zolotarev, K V; Khruschev, S V; Krämer, Dietrich; Kulipanov, G N; Lev, V H; Mezentsev, N A; Miginsky, E G; Shkaruba, V A; Syrovatin, V M; Tsukanov, V M; Zjurba, V K

    2004-01-01

    BESSY operates a 3-rd generation synchrotron light source in VUV to XUV region at Berlin-Adlershof. The main radiation sources in storage ring are special magnetic elements as undulators and wigglers. 3 superconducting shifters and one multipole superconducting wiggler are operating giving enhanced photon flux for 10-25 keV X-ray region. As the superconducting elements presently are located in straight sections, BESSY intends to exchange 4 of conventional room-temperature bending magnets by superconducting ones.The report contains brief description of 9 Tesla superbend prototype as a candidate for replacing of conventional magnets of BESSY-2, which was designed, fabricated and tested at Budker INP and was commissioned at BESSY in June 2004.Main parameters of 9 Tesla superconducting bending magnet prototype as well as testing results are presented.

  4. Effectiveness and safety of vaginal misoprostol for induction of labour in unfavourable cervix in 3rd trimester.

    Science.gov (United States)

    Abbasi, Nasreen; Danish, Nargis; Shakoor, Farah; Parveen, Zahida; Bilal, Syed Ahmad

    2008-01-01

    The use of prostaglandin preparations with or without oxytocin infusion, is widely recognized and accepted as a standard method of induction of labour. It has been shown to reduce induction time and the risk of failed induction. The objective of this quasi-experimental observational study was to determine the effectiveness and safety of Misoprostol administered vaginally for induction of labour to achieve vaginal delivery. This study was conducted from October 2004 to October 2007. The study was conducted at Shaheena Jamil Teaching Hospital, Frontier Medical College, Abbottabad and Women and Children Hospital Abbottabad. A total of 6299 obstetric patients were received for delivery and 946 patients had to undergo induction of labour. Primary outcome measures were to address clinical effectiveness (delivery within 24-hours) and safety (uterine hyper-stimulation, Caesarean Section and serious Maternal Morbidity). Secondary outcome measures included neonatal outcome. Out of 946 cases, successful vaginal deliveries were achieved in 843 (89.1%) cases. Time interval between induction and delivery was 4-24 hours. Oxytocin was required in 107 (12%) patients. Caesarean Section had to be done in 103 (10.8%) cases. The indications for Caesarean Section were foetal distress in 42 (40%), occipito-posterior position in 8 (7.7%), abruptioplacentae 2 (1.9%), cord around the neck 9 (7%), uterine hyperstimulation 6 (5.8%) and failure to progress in 20 (19%) cases. Admission to NICU was 28 (3.3%) and Neonatal deaths were 5 (0.5%). Postpartum Haemorrhage (PPH) was observed in 22 (2.3%) patients. There was no case of rupture uterus. Vaginal Misoprostol appears to be safe and effective for cervical ripening in 3rd Trimester. It helps vaginal delivery within 24 hours, does not increase incidence of Caesarean Section and has no adverse effect on foetal outcome. It could also be used in circumstances where extensive monitoring techniques are not available though close observation and

  5. AN INTERNAL MEDICINE SIMULATED PRACTICAL EXAM FOR ASSESSMENT OF CLINICAL COMPETENCY IN 3RD YEAR MEDICAL STUDENTS

    Science.gov (United States)

    Bodamer, Cheryl; Feldman, Moshe; Kushinka, Jeffrey; Brock, Ellen; Dow, Alan; Evans, Jessica A.; Bearman, Gonzalo

    2015-01-01

    Introduction Achieving standardized assessment of medical student competency in patient care is a challenge. Simulation may provide unique contributions to overall assessment. We developed an Internal Medicine Standardized Simulation Based Examination (SSBE) for the 3rd year clerkship to assess students’ medical knowledge, diagnostic skills, and clinical management skills. We assessed convergent and test-criterion validity by comparing the relationship of SSBE scores with USMLE Step 2 clinical knowledge, shelf exam, eQuiz, OSCE, ward evaluation scores, and overall clerkship grades. We hypothesize that use of the SSBE will allow for a more reliable assessment of these competencies and add value to existing assessments. Methods A prospective study design was used. The SSBE consisted of a computer based photo quiz and cases on high fidelity simulators. Performance on the SSBE was compared to standardized examinations, clinical evaluations, and overall clerkship grades. Students completed an evaluation of the experience. Results Two hundred seven students completed the SSBE, with a mean score of 76.69 (SD 7.78). SSBE performance was positively related to other assessments of medical knowledge (eQuiz scores (r(203) =.33, p< .01), shelf exam scores (r(158) =.53, p< .01), and clinical performance (ward scores) (r(163) =.31, p<.01) but not to OSCE scores. There was a positive relationship to final class grades (r(163) = .45, p<.01), shelf exam (r (158) =.52, p<.01) and Step 2 clinical knowledge scores (r(76) =.54, p<.01). The majority (93%) of students agreed that it was a fair exam. Conclusion Our results provide validity evidence for the SSBE as an additional assessment tool that uses a novel approach for evaluating competency in patient care at the clerkship level. PMID:26650701

  6. Organizational Support for the 3rd Summer Institute on Complex Plasmas, July 30 – August 8, 2012

    Energy Technology Data Exchange (ETDEWEB)

    Lopez, Jose L. [Seton Hall University

    2012-07-01

    This grant provided partial funds for American graduate students to attend the 3rd Graduate Summer Institute on Complex Plasmas, which was held from July 30 to August 8, 2012 at Seton Hall University in South Orange, New Jersey. The Graduate Summer Institute is a topical series of instructional workshops held bi-annually on the emerging field of complex plasmas that is jointly organized through a collaboration between American and German-European Union plasmas researchers. This specialized program brings together many of the world's leading researchers in the specialized area of complex plasmas, who freely provide instructional lectures and tutorials on the most recent research and discoveries done in this branch of plasma science. The partial funds provided by this grant helped support the travel and accommodation expenses of the participating American students and tutorial instructors. Partial funds further supported the travel and accommodation of three renown American plasma researchers that provided educational tutorials to the thirty-eight participating students from the United States, Europe, and Asia. The organized program afforded a unique opportunity for the participating American graduate students to learn about and engage more deeply in an area of plasma science that is not studied in any of the graduate educational curriculums provided by universities in the United States of America. The educational experience offered by this program provided the necessary knowledge needed by future American plasma researchers to keep the national plasma research effort on the cutting-edge and keep the national plasma community as a global leader.

  7. Synchrotron radiation in biosciences

    Science.gov (United States)

    Marinkovic, Nebojsa S.; Gupta, Sayan; Zhan, Chenyang; Chance, Mark R.

    2005-12-01

    The Center for Synchrotron Biosciences (CSB) operates five beamlines at the National Synchrotron Light Source (NSLS). Infrared (IR) micro-spectroscopy, X-ray absorption spectroscopy, structural proteomics and macromolecular footprinting are among the major technologies available through the Center. IR micro-spectroscopy is used to examine protein-folding in the microsecond time regime, image bone, neurons, seeds and other biological tissues, as well as image samples of interest in the chemical and environmental sciences. Structural proteomics research of New York Structural Genomics Research Consortium (NYSGRC) is steadily increasing the number of solved protein structures, with a goal to solve 100-200 structures per year. To speed up the research, a high-throughput method called 'metallomics' was implemented for NYSGRC crystallographers to detect intrinsic anomalous scatterers using X-ray absorption spectroscopy. Hydroxyl radical mediated X-ray footprinting is capable of resolving folding events of RNA, at single base resolution on millisecond timescales using a synchrotron white beam. The high brightness of synchrotron source is essential for CSB projects as it permits the use of smaller sample sizes and/or concentration, and allows studies of more complicated biological systems than with conventional sources.

  8. Synchrotron radiation in biosciences

    Energy Technology Data Exchange (ETDEWEB)

    Marinkovic, Nebojsa S. [Center for Synchrotron Biosciences, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Ullman 315, Bronx, NY 10461 (United States)]. E-mail: marinkov@bnl.gov; Gupta, Sayan [Center for Synchrotron Biosciences, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Ullman 315, Bronx, NY 10461 (United States); Zhan, Chenyang [Center for Synchrotron Biosciences, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Ullman 315, Bronx, NY 10461 (United States); Chance, Mark R. [Center for Synchrotron Biosciences, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Ullman 315, Bronx, NY 10461 (United States)

    2005-12-15

    The Center for Synchrotron Biosciences (CSB) operates five beamlines at the National Synchrotron Light Source (NSLS). Infrared (IR) micro-spectroscopy, X-ray absorption spectroscopy, structural proteomics and macromolecular footprinting are among the major technologies available through the Center. IR micro-spectroscopy is used to examine protein-folding in the microsecond time regime, image bone, neurons, seeds and other biological tissues, as well as image samples of interest in the chemical and environmental sciences. Structural proteomics research of New York Structural Genomics Research Consortium (NYSGRC) is steadily increasing the number of solved protein structures, with a goal to solve 100-200 structures per year. To speed up the research, a high-throughput method called 'metallomics' was implemented for NYSGRC crystallographers to detect intrinsic anomalous scatterers using X-ray absorption spectroscopy. Hydroxyl radical mediated X-ray footprinting is capable of resolving folding events of RNA, at single base resolution on millisecond timescales using a synchrotron white beam. The high brightness of synchrotron source is essential for CSB projects as it permits the use of smaller sample sizes and/or concentration, and allows studies of more complicated biological systems than with conventional sources.

  9. Aerial view of the 28 GeV Protron Synchrotron

    CERN Multimedia

    CERN PhotoLab

    1965-01-01

    The underground ring of the 28 GeV proton synchrotron in 1965. Left, the South and North experimental halls. Top right, part of the East hall. Bottom right, the main generator room and the cooling condensers.

  10. PREFACE: 3rd International Conference on Science & Engineering in Mathematics, Chemistry and Physics 2015 (ScieTech 2015)

    Science.gov (United States)

    Gaol, F. L.

    2015-06-01

    The 3rd International Conference on Science & Engineering in Mathematics, Chemistry and Physics 2015 (ScieTech 2015), was held at The Westin Resort Nusa Dua, Bali on 31 January - 1 February 2015. The ScieTech 2015 conference is aimed to bring together researchers, engineers and scientists from around the world. ScieTech 2015 is placed on promoting interaction between the theoretical, experimental, and applied communities, so that a high level exchange is achieved in new and emerging areas within mathematics, chemistry and physics. As we already know that science and technology have brought tremendous benefits for human civilization. People are becoming healthier, wealthier, better educated, more peaceful, increasingly connected, and living longer. Of course, science and technology provide many answers to global challenges, but we will face more complex problems in the next decade due to increasing world population, limitation of energy, and climate change. Therefore, researchers should be more active in conducting research that enables collaboration between one and the others. Interdisciplinary cooperation is absolutely necessary in order to create a smart system for solving the global problems. We need a global and general long-term view of the future with long-range goals for solving complex problems in next decade. Therefore the conference was held to be a forum for researchers from different disciplines to start collaborating and conducting research that provides a solution to the global issues. The theme of ScieTech 2015 was ''The interdisciplinary Application between Mathematics, Chemistry and Physics to enhance the Quality of Life''. We would like to express our sincere gratitude to all in the Technical Program Committee who have reviewed the papers and developed a very interesting conference program as well as the invited and plenary speakers. This year, we received 197 papers and after rigorous review, 59 papers were accepted. The participants came from 19

  11. Baseline Hepatitis B Virus DNA Level is a Promising Factor for Predicting the 3 rd Month Virological Response to Entecavir Therapy: A Study of Strict Defined Hepatitis B virus Induced Cirrhosis

    Directory of Open Access Journals (Sweden)

    Yang Xu

    2015-01-01

    Conclusions: Baseline HBV DNA, HBeAg negativity, and ALT were independent factors contributing to virological response at the 3 rd month. Further, multiple regression showed that HBV DNA level was the only parameter predicting full virological response as early as the 3 rd month, in this cirrhosis cohort.

  12. A Low Distortion 3rd-Order Continuous-Time Delta-Sigma Modulator for a Worldwide Digital TV-Receiver

    Science.gov (United States)

    Obata, Koji; Matsukawa, Kazuo; Mitani, Yosuke; Takayama, Masao; Tokunaga, Yusuke; Sakiyama, Shiro; Dosho, Shiro

    This paper presents a low distortion 3rd-order continuous-time delta-sigma modulator for a worldwide digital TV-receiver whose peak SNDR is 69.8dB and SNR is 70.2dB under 1V power supply. To enhance SNDR performance, the mechanisms to occur harmonic distortions at feedback current-steering DAC and flash ADC have been analyzed. A low power tuning system using RC-relaxation oscillator has been developed in order to achieve high yield against PVT variations. A 3rd-order modulator with modified single opamp resonator contributes to cost reduction by realizing a very compact circuit. Reduction schemes of the distortions enabled the modulator to achieve FOM of 0.18pJ/conv-step.

  13. Three-dimensional finite element study on stress generation in synchrotron X-ray tomography reconstructed nickel-manganese-cobalt based half cell

    Science.gov (United States)

    Wu, Linmin; Xiao, Xianghui; Wen, Youhai; Zhang, Jing

    2016-12-01

    In this study, the stress generation caused by phase transitions and lithium intercalation of nickel-manganese-cobalt (NMC) based half cell with realistic 3D microstructures has been studied using finite element method. The electrochemical properties and discharged curves under various C rates are studied. The potential drops significantly with the increase of C rates. During the discharge process, for particles isolated from the conductive channels, several particles with no lithium ion intercalation are observed. For particles in the electrochemical network, the lithium ion concentration increases during the discharge process. The stress generation inside NMC particles is calculated coupled with lithium diffusion and phase transitions. The results show the stresses near the concave and convex regions are the highest. The neck regions of the connected particles can break and form several isolated particles. If the isolated particles are not connected with the electrically conductive materials such as carbon and binder, the capacity loses in battery. For isolated particles in the conductive channel, cracks are more likely to form on the surface. Moreover, stresses inside the particles increase dramatically when considering phase transitions. The phase transitions introduce an abrupt volume change and generate the strain mismatch, causing the stresses increase.

  14. Three-dimensional finite element study on stress generation in synchrotron X-ray tomography reconstructed nickel-manganese cobalt based half cell

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Linmin; Xiao, Xianghui; Wen, Youhai; Zhang, Jing

    2016-12-30

    In this study, the stress generation caused by phase transitions and lithium intercalation of nickel-manganese-cobalt (NMC) based half cell with realistic 3D microstructures has been studied using finite element method. The electrochemical properties and discharged curves under various C rates are studied. The potential drops significantly with the increase of C rates. During the discharge process, for particles isolated from the conductive channels, several particles with no lithium ion intercalation are observed. For particles in the electrochemical network, the lithium ion concentration increases during the discharge process. The stress generation inside NMC particles is calculated coupled with lithium diffusion and phase transitions. The results show the stresses near the concave and convex regions are the highest. The neck regions of the connected particles 2 can break and form several isolated particles. If the isolated particles are not connected with the electrically conductive materials such as carbon and binder, the capacity loses in battery. For isolated particles in the conductive channel, cracks are more likely to form on the surface. Moreover, stresses inside the particles increase dramatically when considering phase transitions. The phase transitions introduce an abrupt volume change and generate the strain mismatch, causing the stress increase.

  15. Proceedings of the 3rd Biennial Conference of the Society for Implementation Research Collaboration (SIRC) 2015: advancing efficient methodologies through community partnerships and team science

    OpenAIRE

    Kerns, Suzanne; Puspitasari, Ajeng; Hendricks, Karin; Pierson, Andria; Fizur, Phil; Comtois, Katherine A.; Green, Amy E; Trott, Elise M.; Willging, Cathleen E.; Fernandez, Maria E.; Woolf, Nicholas H.; Liang, Shuting Lily; Heredia, Natalia I.; Kegler, Michelle; Risendal, Betsy

    2016-01-01

    Table of contents Introduction to the 3rd Biennial Conference of the Society for Implementation Research Collaboration: advancing efficient methodologies through team science and community partnerships Cara Lewis, Doyanne Darnell, Suzanne Kerns, Maria Monroe-DeVita, Sara J. Landes, Aaron R. Lyon, Cameo Stanick, Shannon Dorsey, Jill Locke, Brigid Marriott, Ajeng Puspitasari, Caitlin Dorsey, Karin Hendricks, Andria Pierson, Phil Fizur, Katherine A. Comtois A1: A behavioral economic perspective ...

  16. Medical students’ skills in image interpretation before and after training: A comparison between 3rd-year and 6th-year students from two different medical curricula

    Energy Technology Data Exchange (ETDEWEB)

    Sendra-Portero, Francisco, E-mail: sendra@uma.es [Departamento de Radiología y Medicina Física, Facultad de Medicina, Universidad de Málaga, Boulevar Louis Pasteur, 32, 29071 Málaga (Spain); Torales-Chaparro, Oscar E., E-mail: oetjft@terra.es [Departamento de Radiología y Medicina Física, Facultad de Medicina, Universidad de Málaga, Boulevar Louis Pasteur, 32, 29071 Málaga (Spain); Ruiz-Gómez, Miguel J., E-mail: mjrg@uma.es [Departamento de Radiología y Medicina Física, Facultad de Medicina, Universidad de Málaga, Boulevar Louis Pasteur, 32, 29071 Málaga (Spain)

    2012-12-15

    The purpose of this study was to assess student's performance in the interpretation of images before and after training in radiology, by comparing two groups, 6th-year and 3rd-year students, from two different medical curricula. Students participated in an anonymous evaluation consisting of the interpretation of 12 radiological images accompanied with the salient history and clinical data by answering 60 open-ended questions about technique, anatomy, semiology, and clinics. The number of correct, incorrect and blank responses of each group was used to compare pre- and post-training results. Unpaired two-sample t-test was used to evaluate differences between groups. A significant increase in correct responses was found in both groups after training. The comparison between both groups did not show differences for incorrect answers of the whole test and correct answers about anatomy in the pre-training evaluation. The percentage of correct answers to the median question improved from 15.5% to 53.3% for 6th-year students and from 8.3% to 41.1% for 3rd-year students. The post-training evaluation showed a significant increase of correct answers of 6th-year students with respect to 3rd-year students (mean ± standard deviation 53.6 ± 31.3% and 38.7 ± 29.9% respectively), mainly due to differences in technical and clinical questions. This study provides objective and quantitative evidence of pre- and post-training student skills in image interpretation. The similarities found in the previous level of knowledge and skills of both groups emphasizes the suitable change of the first-time training in radiology, from the 6th to the 3rd year course in medical curricula.

  17. A Learning Organization Born in the Crucible of Combat: The 3rd Infantry Brigade, 2nd Division, in World War I

    Science.gov (United States)

    2016-06-10

    division was expected to fight and were, figuratively speaking , students under Lejeune’s tutelage. This is important because the new commanders...Organization. The skillful practice of personal mastery, challenging mental models, creating a shared vision, fostering team learning and developing...organization. In the end, the 3rd Infantry Brigade demonstrated personal mastery of warfighting skills , challenged the status quo of their doctrine

  18. Proceedings of the 3rd Biennial Conference of the Society for Implementation Research Collaboration (SIRC) 2015: advancing efficient methodologies through community partnerships and team science

    OpenAIRE

    Kerns, Suzanne; Puspitasari, Ajeng; Hendricks, Karin; Pierson, Andria; Fizur, Phil; Comtois, Katherine A.; Green, Amy E.; Trott, Elise M.; Willging, Cathleen E.; Fernandez, Maria E.; Woolf, Nicholas H.; Liang, Shuting Lily; Heredia, Natalia I.; Kegler, Michelle; Risendal, Betsy

    2016-01-01

    Table of contents Introduction to the 3rd Biennial Conference of the Society for Implementation Research Collaboration: advancing efficient methodologies through team science and community partnerships Cara Lewis, Doyanne Darnell, Suzanne Kerns, Maria Monroe-DeVita, Sara J. Landes, Aaron R. Lyon, Cameo Stanick, Shannon Dorsey, Jill Locke, Brigid Marriott, Ajeng Puspitasari, Caitlin Dorsey, Karin Hendricks, Andria Pierson, Phil Fizur, Katherine A. Comtois A1: A behavioral economic perspective ...

  19. Food Micro 2010, 22th International ICFMH Symposium, “ Microbial Behaviour in the Food Chain ” 30th August – 3rd September 2010, Copenhagen, Denmark

    DEFF Research Database (Denmark)

    2012-01-01

    This Special Issue of International Journal of Food Microbiology contains a selection of papers presented at Food Micro 2010, the 22th Symposium of the International Committee on Food Microbiology and Hygiene (ICFMH). Food Micro 2010 was held on 30th August to 3rd September 2010 in Copenhagen, De......, Denmark and organized in collaboration between the Danish Centre for Advanced Food Studies (LMC) and Lund University in Sweden....

  20. The construction of the CMS electromagnetic calorimeter: delivery of the 3rd and 4th endcap "Dees" and Ring Flanges to CERN

    CERN Multimedia

    2006-01-01

    Delivery of the 3rd and 4th Dees and Ring Flanges of the CMS-ECAL endcaps to CERN. The pictures show also an endcap crystal with its VPT (Vacuum PhotoTriode), the aluminium blackplates of the endcap Dees and four mock supercrystals (5x5 crystals) attached in their position on the backplate, along with 138 positional spacers. Finally, endcap assembly in the CMS construction hall in Cessy (neighbouring France) is also shown.

  1. “The 3 rd International Conference on Islamic Banking and Finance: Risk Management, Regulation and Supervision” Jakarta, Indonesia, 22-24 February 2010.

    OpenAIRE

    Only, Report

    2010-01-01

    The conference “3rd International Conference on Islamic Banking and Finance: Risk Management, Regulation and Supervision” was jointly organized by IRTI and Center of Islamic Economics and Business (PEBS) University of Indonesia and cohosted by Bank Indonesia. It started with a welcoming ceremony and dinner on 22nd of February. The ceremony was addressed by H. E. Sri Mulyani Indrawarti, then Minister of Finance, Republic of Indonesia (currently Executive Director at World Bank). In her speech ...

  2. The temperature field and heat transfer in the porthole of the Space Shuttle - Outer surface under the 3rd kind nonlinear boundary condition

    Science.gov (United States)

    Tan, Heping; Yu, Qizheng; Zhang, Jizhou

    In this paper, the transient combined heat transfer in the silicon glass porthole of Space Shuttle is studied by control volume method, ray tracing method and spectral band model. The temperature field in the silicon glass and heat flux entering the space cabin are given under the 3rd kind nonlinear boundary condition. The computational results show, if the radiation in the silicon glass is omitted, the errors for temperature fields are not too evident, but for heat flux are quite large.

  3. Proceedings of the 3rd International Symposium on Material Chemistry in Nuclear Environment (MATERIAL CHEMISTRY '02, MC '02); March 13-15, 2002, Tsukuba

    OpenAIRE

    MC'02企画委員会

    2003-01-01

    The volume contains all presented papers during the the 3rd International Symposium on Material Chemistry in Nuclear Environment: MATERIAL CHEMISTRY '02 (MC'02), held March 13-15, 2002. The purpose of this symposium is to provide an international forum for the discussion of recent progress in the field of materials chemistry in nuclear environments. This symposium intends to build on the success of the previous symposiums held in Tsukuba in 1992 and 1996. The topics discussed in the symposium...

  4. Symposium on High-Speed Aerodynamics and Structures (3rd) Held at San Diego, California on March 25-27, 1958. Volume 1.

    Science.gov (United States)

    1958-03-01

    3RD Symposium Cooý " HIGH-SPEED AERODYNAMICS AND STRUCTURES SAN DIEGO., CALIF DTIC Fft EELECTE ti"tSAUG0 419 F 1ThIU~~4 do ume hat be~ aapm p ubi...waves as shown in Fig. 19. 1-0 £ - 45 rnsee -. 5 rnsec t, t ime Fig. 19. The 5-Millisecond Buildup, Finite Rise Time Wave Form 155 The distance at which a

  5. Tabletop synchrotron and its unique features

    CERN Document Server

    Yamada, H

    2002-01-01

    Two synchrotrons, AURORA and MIRRORCLE, were built in Ritsumeikan University. MIRRORCLE-20 is the smallest normal conduction synchrotron (15 cm orbit radius and 1.2 m outer diameter) in the world. It uses 2/3 resonance method for electron beam incidence but is not optimized for X-ray generation. MIRRORCLE-6 shall be optimized for X-ray generation. X-ray generated by MIRRORCLE shows very flat white light, rich in hard X-ray, pulse with width changeable from a few mu s to a few ms , wide radiation angle of 25 mrad at MIRRORCLE-20 and 80 mrad at MIRRORCLE-8 and high coherence. The feature such as pulsed light and high coherence is expected to new application which photon radiation cannot practice. Imaging experiments by MIRRORCLE were carried out by Cu plate, Al plate, Teflon and acryl plate. We took a photograph of insect, electric lamp, connector, and cyclotron. New X-ray generation mechanism, X-ray strength, development of tabletop synchrotron and features of X-ray beam are explained. (S.Y.)

  6. Medical applications of synchrotron radiation at the National Synchrotron Light Source

    Energy Technology Data Exchange (ETDEWEB)

    Thomlinson, W.

    1992-10-01

    The overriding features of the synchrotron beams which make them applicable to medical research are their extremely high intensity and broadband energy spectrum. Several orders of magnitude separate the smooth, continuous spectrum of the synchrotron from the sharply peaked characteristic emission spectrum of a conventional source. Basically, the high intensity and tunability allow monochromatic beams to be generated at virtually any energy. The standard problem of beam hardening in both medical imaging and therapy is eliminated by the monochromatic beams since the energy spectrum does not change with passage through tissue. The tunable spectrum allows enhancement of images and therapeutic dose by selection of the most effective energy for a given procedure.

  7. Medical applications of synchrotron radiation at the National Synchrotron Light Source

    Energy Technology Data Exchange (ETDEWEB)

    Thomlinson, W.

    1992-01-01

    The overriding features of the synchrotron beams which make them applicable to medical research are their extremely high intensity and broadband energy spectrum. Several orders of magnitude separate the smooth, continuous spectrum of the synchrotron from the sharply peaked characteristic emission spectrum of a conventional source. Basically, the high intensity and tunability allow monochromatic beams to be generated at virtually any energy. The standard problem of beam hardening in both medical imaging and therapy is eliminated by the monochromatic beams since the energy spectrum does not change with passage through tissue. The tunable spectrum allows enhancement of images and therapeutic dose by selection of the most effective energy for a given procedure.

  8. Hammurabi: Simulating polarized Galactic synchrotron emission

    Science.gov (United States)

    Jaffe, Tess; Waelkens, Andre; Reinecke, M.; Kitaura, F. S.; Enßlin, T. A.

    2012-01-01

    The Hammurabi code is a publicly available C++ code for generating mock polarized observations of Galactic synchrotron emission with telescopes such as LOFAR, SKA, Planck, and WMAP, based on model inputs for the Galactic magnetic field (GMF), the cosmic-ray density distribution, and the thermal electron density. The Hammurabi code allows one to perform simulations of several different data sets simultaneously, providing a more reliable constraint of the magnetized ISM.

  9. Coherent synchrotron radiation: Theory and experiments

    Energy Technology Data Exchange (ETDEWEB)

    Courtland L. Bohn

    2002-07-19

    Our understanding of the generation of coherent synchrotron radiation in magnetic bending systems and its impact on beam dynamics has grown considerably over the past few years. The search for understanding has brought a number of surprises, all related to the complexity of the fully self-consistent problem. Herein I survey the associated phenomenology, theory, and experiments while emphasizing important subtleties that have recently been uncovered. I conclude by speculating on courses of future investigations that may prove fruitful.

  10. Synchrotron radiation facilities in the USA

    Energy Technology Data Exchange (ETDEWEB)

    Decker, G.

    1996-07-01

    With the successful commissioning and achievement of significant milestones at both the 7-GeV Advanced Photon Source (APS) and the 1.5- GeV Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory, synchrotron radiation research capability in the United States holds the promise of many important discoveries in the decade to come. An overview of current accelerator commissioning performance at the American third-generation light sources, state-of-the-art developments at first- and second-generation sources, and a preview of fourth-generation source progress is presented.

  11. The Large Hadron Collider and the Super Proton Synchrotron at CERN as Tools to Generate Warm Dense Matter and Non–Ideal Plasmas

    CERN Document Server

    Tahir, N A; Shutov, A; Lomonosov, I V; Gryaznov, V; Piriz, A R; Deutsch, C; Fortov, V E

    2011-01-01

    The largest accelerator in the world, the Large Hadron Collider (LHC) at CERN, has entered into commission- ing phase. It is expected that when this impressive machine will become fully operational, it will generate two counter rotating 7 TeV/c proton beams that will be made to collide, leading to an unprecedented luminosity of 1034 cm−2s−1. Total energy stored in each LHC beam is about 362 MJ, sufficient to melt 500 kg copper. Safety of operation is a very critical issue when working with such extremely powerful beams. It is important to know the consequences of an accidental release of the beam energy in order to design protection system for the equipment. For this purpose we have carried out extensive numerical simulations of the interaction of one full LHC beam with copper and graphite targets which are materials of practical importance. Our calculations have shown that the LHC protons will penetrate up to about 35 m in solid copper and 10 m in solid graphite. A very interesting outcome of this work i...

  12. The Large Hadron Collider and the Super Proton Synchrotron at CERN as Tools to Generate Warm Dense Matter and Non-Ideal Plasmas

    CERN Document Server

    Tahir, N A; Deutsch, C; Gryaznov, V; Lomonosov, I V; Shutov, A; Piriz, A R; Fortov, V E; Geissel, H; Redmer, R

    2011-01-01

    The largest accelerator in the world, the Large Hadron Collider (LHC) at CERN, has entered into commissioning phase. It is expected that when this impressive machine will become fully operational, it will generate two counter rotating 7 TeV/c proton beams that will be made to collide, leading to an unprecedented luminosity of 10(34) cm(-2)s(-1). Total energy stored in each LHC beam is about 362 MJ, sufficient to melt 500 kg copper. Safety of operation is a very critical issue when working with such extremely powerful beams. It is important to know the consequences of an accidental release of the beam energy in order to design protection system for the equipment. For this purpose we have carried out extensive numerical simulations of the interaction of one full LHC beam with copper and graphite targets which are materials of practical importance. Our calculations have shown that the LHC protons will penetrate up to about 35 m in solid copper and 10 m in solid graphite. A very interesting outcome of this work i...

  13. Synchrotron radiation from a curved plasma channel laser wakefield accelerator

    CERN Document Server

    Palastro, J P; Hafizi, B; Chen, Y -H; Johnson, L A; Penano, J R; Helle, M H; Mamonau, A A

    2016-01-01

    A laser pulse guided in a curved plasma channel can excite wakefields that steer electrons along an arched trajectory. As the electrons are accelerated along the curved channel, they emit synchrotron radiation. We present simple analytical models and simulations examining laser pulse guiding, wakefield generation, electron steering, and synchrotron emission in curved plasma channels. For experimentally realizable parameters, a ~2 GeV electron emits 0.1 photons per cm with an average photon energy of multiple keV.

  14. An introduction to synchrotron radiation techniques and applications

    CERN Document Server

    Willmott, Philip

    2011-01-01

    This book introduces the reader to the basic concepts of the generation and manipulation of synchrotron light, its interaction with matter, and the application of synchrotron light in the “classical” techniques, while including some of the most modern technological developments. As much as possible, complicated mathematical derivations and formulas are avoided. A more heuristic approach is adopted, whereby the general physical reasoning behind the equations is highlighted.

  15. Synchrotrons for Hadrontherapy

    Science.gov (United States)

    Pullia, Marco G.

    Since 1990, when the world's first hospital-based proton therapy center opened in Loma Linda, California, interest in dedicated proton and carbon ion therapy facilities has been growing steadily. Today, many proton therapy centers are in operation, but the number of centers offering carbon ion therapy is still very low. This difference reflects the fact that protons are well accepted by the medical community, whereas radiotherapy with carbon ions is still experimental. Furthermore, accelerators for carbon ions are larger, more complicated and more expensive than those for protons only. This article describes the accelerator performance required for hadrontherapy and how this is realized, with particular emphasis on carbon ion synchrotrons.

  16. Taking X-ray Diffraction to the Limit: Macromolecular Structures from Femtosecond X-ray Pulses and Diffraction Microscopy of Cells with Synchrotron Radiation

    Energy Technology Data Exchange (ETDEWEB)

    Chapman, H N; Miao, J; Kirz, J; Sayre, D; Hodgson, K O

    2003-10-01

    The methodology of X-ray crystallography has recently been successfully extended to the structure determination of non-crystalline specimens. The phase problem was solved by using the oversampling method, which takes advantage of ''continuous'' diffraction pattern from non-crystalline specimens. Here we review the principle of this newly developed technique and discuss the ongoing experiments of imaging non-periodic objects, like cells and cellular structures using coherent and bright X-rays from the 3rd generation synchrotron radiation. In the longer run, the technique may be applied to image single biomolecules by using the anticipated X-ray free electron lasers. Computer simulations have so far demonstrated two important steps: (1) by using an extremely intense femtosecond X-ray pulse, a diffraction pattern can be recorded from a macromolecule before radiation damage manifests itself, and (2) the phase information can be ab initio retrieved from a set of calculated noisy diffraction patterns of single protein molecules.

  17. Laser synchrotron radiation and beam cooling

    Energy Technology Data Exchange (ETDEWEB)

    Esarey, E.; Sprangle, P.; Ting, A. [Naval Research Lab., Washington, DC (United States)] [and others

    1995-12-31

    The interaction of intense {approx_gt} 10{sup 18} W/cm{sup 2}, short pulse ({approx_lt} 1 ps) lasers with electron beams and plasmas can lead to the generation of harmonic radiation by several mechanisms. Laser synchrotron radiation may provide a practical method for generating tunable, near monochromatic, well collimated, short pulse x-rays in compact, relatively inexpensive source. The mechanism for the generation of laser synchrotron radiation is nonlinear Thomson scattering. Short wavelengths can be generated via Thomson scattering by two methods, (i) backscattering from relativistic electron beams, in which the radiation frequency is upshifted by the relativistic factor 4{gamma}{sup 2}, and (ii) harmonic scattering, in which a multitude of harmonics are generated with harmonic numbers extending out to the critical harmonic number nc{approx_equal}a{sub 0}{sup 3} {much_gt} 1, where a{sub 0} {approx_equal}10{sup -9}{lambda}I{sup 1/2}, {lambda} is the laser wavelength in {mu}m and I is the laser intensity in W/cm{sup 2}. Laser synchrotron sources are capable of generating short ({approx_lt} ps) x-ray pulses with high peak flux ({approx_gt} 10{sup 21} photons/s) and brightness ({approx_gt}{sup 19} photons/s-mm{sup 2}-mrad{sup 2} 0.1%BW. As the electron beam radiates via Thomson scattering, it can subsequently be cooled, i.e., the beam emittance and energy spread can be reduced. This cooling can occur on rapid ({approximately} ps) time scales. In addition, electron distributions with sufficiently small axial energy spreads can be used to generate coherent XUV radiation via a laser-pumped FEL mechanism.

  18. 第三空间中语言的自我协商式进化%The Self-negotiated Language Evolution in the 3rd Space

    Institute of Scientific and Technical Information of China (English)

    丁晓蔚

    2015-01-01

    The 3rd Space in the age of globalization is a zone for native language and target language to encounter,coordinate and integrate with each other.Language users create linguistic variations through individual self-negotiation,a driving force of lan-guage evolution.Language communities select and spread the linguistic variations through collective self-negotiation,a maintain-ing force of language evolution.Therefore,the language evolution in the 3rd space is a self-negotiated process.In addition,the 3rd space enables native language and target language to enjoy equal status and power,and enables language users to advance their lin-guistic competence in both directions,in balance,and in dimensions of context,development,content and medium.%全球化时代的第三空间是本族语和目的语接触、冲突、协调、融合的地带,语言使用者通过个体自我协商创造语言变体,产生语言进化的驱动力;通过群体自我协商选择和传播语言变体,维持语言进化的惯性.因此,第三空间的语言进化是自我协商式的语言演化过程.第三空间的时代特点赋予本族语和目的语渐趋平等的地位和权力,使语言使用者的语言能力在语境、发展、内容和介质四个维度均呈现双向平衡发展的趋势.

  19. Synchrotron Mossbauer spectroscopy of powder samples

    Science.gov (United States)

    Alp, E. E.; Sturhahn, W.; Toellner, T.

    1995-05-01

    Synchrotron Mossbauer spectroscopy, SMS, is an emerging technique that allows fast and accurate determination of hyperfine field parameters similar to conventional Mossbauer spectroscopy with radioactive sources. This new technique, however, is qualitatively different from Mossbauer spectroscopy in terms of equipment, methodology, and analysis to warrant a new name. In this paper, we report on isomer shift and quadrupole splitting measurements of Mohr's salt, Fe(NH4)2 (SO4)2 · 6H2O for demonstration purposes. Theoretical calculations were performed and compared to experiments both in energy and time domain to demonstrate the influence of thickness distribution and preferential alignment of powder samples. Such measurements may prove to be useful when the data collection times are reduced to few seconds in the third generation, undulator based synchrotron radiation sources.

  20. Resonant diffraction of synchrotron radiation: New possibilities

    Science.gov (United States)

    Ovchinnikova, E. N.; Mukhamedzhanov, E. Kh.

    2016-09-01

    Resonant diffraction of synchrotron radiation (SR) is a modern method of studying the structure and properties of condensed matter that can be implemented on third-generation synchrotrons. This method allows one to investigate local properties of media (including magnetic and electronic ones) and observe thermal vibrations, defects, and orbital and charge orderings. A brief review of the advance provided by SR resonant diffraction is presented, and the capabilities of this method for analyzing phase transitions are considered in more detail by the example of potassium dihydrogen phosphate and rubidium dihydrogen phosphate crystals. It is shown that the investigation of the temperature dependence of forbidden reflections not only makes it possible to observe the transition from para- to ferroelectric phase, but also gives information about the proton distribution at hydrogen bonds.

  1. The 3rd CARISMA international conference on medium and high temperature proton exchange membrane fuel cells: Three approaches to better platinum catalysts at biannual conference

    DEFF Research Database (Denmark)

    Jensen, Jens Oluf; Cleemann, Lars Nilausen; Li, Qingfeng

    2013-01-01

    The 3rd CARISMA International Conference was held at the Axelborg venue in Copenhagen, Denmark, from September 3-5, 2012. The CARISMA conference series was specifically devoted to challenges in the development and testing of fuel cell materials and membrane electrode assemblies (MEAs) for proton...... exchange membrane fuel cells (PEMFCs) to be operated at intermediate and high temperatures. The conference series was initiated by the European CARISMA Coordination Action for Research on Intermediate and High Temperature Specialized Membrane Electrode Assemblies. The 2012 event in Copenhagen had around...

  2. 21st Century Strategies for Protected Areas in East Asia--Briefs of the 3rd Conference on Conservative Land in East Asia

    Institute of Scientific and Technical Information of China (English)

    ZHANG Zurong

    2001-01-01

    @@ The author had the opportunity to attend the 3rd Conference on the Conservative Land in East Asia in Seoul, Korea in September 1999, whose theme was " 21st Century Strategies for Protected Areas in East Asia". As the majority of protected areas in China is located in mountain areas,since the government announced prohibition of any commercial wood cutting, all mountains have become sort of protected areas in a certain degree. The following is a brief introduction on the major issues discussed at the conference.

  3. Efficacy studies of Vectobac 12as and Teknar HP-D larvicides against 3rd-instar Ochlerotatus taeniorhynchus and Culex quinquefasciatus in small plot field studies.

    Science.gov (United States)

    Floore, T G; Petersen, J L; Shaffer, K R

    2004-12-01

    Efficacy studies were conducted with VectoBac 12AS and Teknar HP-D larvicides against 3rd-instar Ochlerotatus taeniorhynchus and Culex quinquefasciatus in small field test plots. The products were obtained off the shelf from distributors and had different lot numbers. They were evaluated over a 2-year period in spring 2002 and 2003. Application rates were 0.29, 0.58, and 1.10 liter/ha and evaluations were made 24 and 48 h after treatment. Both products performed well in these studies, with VectoBac 12AS being more effective at the 0.29 liter/ha rate.

  4. High resolution three-dimensional (256 to the 3rd) spatio-temporal measurements of the conserved scalar field in turbulent shear flows

    Science.gov (United States)

    Dahm, Werner J. A.; Buch, Kenneth A.

    Results from highly resolved three-dimensional spatio-temporal measurements of the conserved scalar field zeta(x,t) in a turbulent shear flow. Each of these experiments consists of 256 to the 3rd individual point measurements of the local instantaneous conserved scalar value in the flow. The spatial and temporal resolution of these measurements reach beyond the local Kolmogorov scale and resolve the local strain-limited molecular diffusion scale in the flow. The results clearly show molecular mixing occurring in thin strained laminar diffusion layers in a turbulent flow.

  5. 4 August 2011 - Austrian Head of Protocol, Directorate General III, Federal Ministry of Science and Research I. Friedrich (3rd from left) in the LHC superconducting magnet test hall with M. Benedkit, C. Wulz and C. Fabjan.

    CERN Multimedia

    Maximilien Brice

    2011-01-01

    4 August 2011 - Austrian Head of Protocol, Directorate General III, Federal Ministry of Science and Research I. Friedrich (3rd from left) in the LHC superconducting magnet test hall with M. Benedkit, C. Wulz and C. Fabjan.

  6. Collaborative study for the establishment of the WHO 3(rd) International Standard for Endotoxin, the Ph. Eur. endotoxin biological reference preparation batch 5 and the USP Reference Standard for Endotoxin Lot H0K354.

    Science.gov (United States)

    Findlay, L; Desai, T; Heath, A; Poole, S; Crivellone, M; Hauck, W; Ambrose, M; Morris, T; Daas, A; Rautmann, G; Buchheit, K H; Spieser, J M; Terao, E

    2015-01-01

    An international collaborative study was organised jointly by the World Health Organization (WHO)/National Institute for Biological Standards and Control (NIBSC), the United States Pharmacopeia (USP) and the European Directorate for the Quality of Medicines & HealthCare (EDQM/Council of Europe) for the establishment of harmonised replacement endotoxin standards for these 3 organisations. Thirty-five laboratories worldwide, including Official Medicines Control Laboratories (OMCLs) and manufacturers enrolled in the study. Three candidate preparations (10/178, 10/190 and 10/196) were produced with the same material and same formulation as the current reference standards with the objective of generating a new (3(rd)) International Standard (IS) with the same potency (10 000 IU/vial) as the current (2(nd)) IS, as well as new European Pharmacopoeia (Ph. Eur.). and USP standards. The suitability of the candidate preparations to act as the reference standard in assays for endotoxin performed according to compendial methods was evaluated. Their potency was calibrated against the WHO 2(nd) IS for Endotoxin (94/580). Gelation and photometric methods produced similar results for each of the candidate preparations. The overall potency estimates for the 3 batches were comparable. Given the intrinsic assay precision, the observed differences between the batches may be considered unimportant for the intended use of these materials. Overall, these results were in line with those generated for the establishment of the current preparations of reference standards. Accelerated degradation testing of vials stored at elevated temperatures supported the long-term stability of the 3 candidate preparations. It was agreed between the 3 organisations that batch 10/178 be shared between WHO and EDQM and that batches 10/190 and 10/196 be allocated to USP, with a common assigned value of 10 000 IU/vial. This value maintains the continuity of the global harmonisation of reference materials and

  7. Orthotics, prosthesis and mobility aids (OPM dispensation in the Regional Health Department of the 3RD Region of Sao Paulo State

    Directory of Open Access Journals (Sweden)

    Camila Caminha Caro

    2014-12-01

    Full Text Available Objective: To identify the process of dispensation of orthotics, prostheses and mobility aids (OPM by the Unified Health System (SUS in the Regional Health Department of the 3rd Region (DRSIII of Sao Paulo state; perform a mapping of the existing physical rehabilitation services in that region; and subsequently correlate the data with applicable laws. Methodology: This is an exploratory cross-sectional qualitative study whose subjects were the main professionals involved in the process of OPM dispensation, or responsible for their acquisition flow in the cities of that region. Data collection was carried out through a semi-structured questionnaire, developed by the researchers themselves, composed of questions aiming to identify the physical rehabilitation centers in the towns, the staff members involved, the provision of assistive technology through SUS, delivery time and existence of waiting lists. Results and discussion: The data were statistically measured, categorized, described and correlated with the current legislation aimed to guarantee access to assistive technology. We observed that the practice around this resource in the 3rd region concentrates in a single care center, causing long waits and poor efficiency of the services provided, in addition to maintaining a paternalistic aspect. Conclusion: This study provides evidence that, although the right to access to assistive technology is legally guaranteed, there are still many difficulties and challenges around this practice.

  8. Future Synchrotron Light Sources Based on Ultimate Storage Rings

    Energy Technology Data Exchange (ETDEWEB)

    Cai, Yunhai; /SLAC

    2012-04-09

    The main purpose of this talk is to describe how far one might push the state of the art in storage ring design. The talk will start with an overview of the latest developments and advances in the design of synchrotron light sources based on the concept of an 'ultimate' storage ring. The review will establish how bright a ring based light source might be, where the frontier of technological challenges are, and what the limits of accelerator physics are. Emphasis will be given to possible improvements in accelerator design and developments in technology toward the goal of achieving an ultimate storage ring. An ultimate storage ring (USR), defined as an electron ring-based light source having an emittance in both transverse planes at the diffraction limit for the range of X-ray wavelengths of interest for a scientific community, would provide very high brightness photons having high transverse coherence that would extend the capabilities of X-ray imaging and probe techniques beyond today's performance. It would be a cost-effective, high-coherence 4th generation light source, competitive with one based on energy recovery linac (ERL) technology, serving a large number of users studying material, chemical, and biological sciences. Furthermore, because of the experience accumulated over many decades of ring operation, it would have the great advantage of stability and reliability. In this paper we consider the design of an USR having 10-pm-rad emittance. It is a tremendous challenge to design a storage ring having such an extremely low emittance, a factor of 100 smaller than those in existing light sources, especially such that it has adequate dynamic aperture and beam lifetime. In many ultra-low emittance designs, the injection acceptances are not large enough for accumulation of the electron beam, necessitating on-axis injection where stored electron bunches are completely replaced with newly injected ones. Recently, starting with the MAX-IV 7-bend

  9. Progress in the field of underground gasification. Report on the 3rd symposium on underground gasification in California

    Energy Technology Data Exchange (ETDEWEB)

    Beckervordersandforth, C.P. (Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl und Inst. fuer Eisenhuettenkunde)

    1978-06-01

    The underground gasification programme in the USA is described. The individual concepts within the ERDA (linked vertical well process, packed bed concept, long wall generator concept, steeply dipping beds), essentially differentiate from each other in the method in which the natural permeability of the coal is increased. Projects not within ERDA (Texas utilities project (brown coal gasification), Texas AM-project and Alberta Research Council project) arepresented briefly.

  10. International Congress of Fluid Mechanics, 3rd, Cairo, Egypt, Jan. 2-4, 1990, Proceedings. Volumes 1, 2, 3, 4

    Energy Technology Data Exchange (ETDEWEB)

    Nayfeh, A.H.; Mobarak, A.; Rayan, M.A.

    1990-01-01

    This conference presents papers in the fields of flow separation, unsteady aerodynamics, fluid machinery, boundary-layer control and stability, grid generation, vorticity dominated flows, and turbomachinery. Also considered are propulsion, waves and sound, rotor aerodynamics, computational fluid dynamics, Euler and Navier-Stokes equations, cavitation, mixing and shear layers, mixing layers and turbulent flows, and fluid machinery and two-phase flows. Also addressed are supersonic and reacting flows, turbulent flows, and thermofluids.

  11. Reshuffle lifts French synchrotron hopes

    CERN Multimedia

    McCabe, H

    2000-01-01

    The sacking of Claude Allegre as research minister has raised doubts over the level of France's promised participation in the construction of Diamond but reawakened French hopes that the synchrotron Soleil may now be built (1 page).

  12. Regions compete for French synchrotron

    CERN Multimedia

    2000-01-01

    Ten regions in France have placed bids to host the planned national synchrotron Soleil. Leading contenders include a joint bid from Ile-de-France and Essonne for Orsay, offering FF 1 billion towards the construction costs (2 paragraphs).

  13. Proton synchrotron radiation at Fermilab

    Energy Technology Data Exchange (ETDEWEB)

    Thurman-Keup, Randy; /Fermilab

    2006-05-01

    While protons are not generally associated with synchrotron radiation, they do emit visible light at high enough energies. This paper presents an overview of the use of synchrotron radiation in the Tevatron to measure transverse emittances and to monitor the amount of beam in the abort gap. The latter is necessary to ensure a clean abort and prevent quenches of the superconducting magnets and damage to the silicon detectors of the collider experiments.

  14. Pushing the Frontiers of Science with Synchrotron Radiation: BESAC Panel on DOE Synchrotron Radiation Sources and Science

    Science.gov (United States)

    Birgeneau, Robert J.

    1998-04-01

    During 1997 a panel empowered by the Basic Energy Sciences Advisory Committee and chaired by the speaker carried out a comprehensive review of the four DOE synchrotron sources, the ALS, APS, NSLS and SSRL^1.(Report of Basic Energy Sciences Advisory Committee Panel on DOE Synchrotron Radiation Sources and Science, November 1997) We also reviewed the science and technology, past and present, carried out at these facilities. This included the areas of materials research, surface science, polymers and other forms of soft condensed matter, atomic, optical, and molecular physics and chemistry, molecular environmental science, the geosciences and structural biology. We also considered more cursorily ongoing and proposed research on fourth generation sources. The most straightforward and most important conclusion of this study is that over the past 20 years in the United States synchrotron radiation research has evolved from an esoteric endeavor practiced by a small number of scientists primarily from the fields of solid state physics and surface science to a mainstream activity which provides essential information in all of the above fields. The user community at U.S. synchrotron facilities continues to grow exponentially, having reached more than 4000 on-site users annually in FY97. The research carried out at the four DOE synchrotron sources is both very broad and often exceptionally deep. We will review the results of this study with emphasis on the current science and anticipated future research carried out at modern synchrotron sources.

  15. 3rd Annual Earth System Grid Federation and 3rd Annual Earth System Grid Federation and Ultrascale Visualization Climate Data Analysis Tools Face-to-Face Meeting Report December 2013

    Energy Technology Data Exchange (ETDEWEB)

    Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2014-02-21

    The climate and weather data science community gathered December 3–5, 2013, at Lawrence Livermore National Laboratory, in Livermore, California, for the third annual Earth System Grid Federation (ESGF) and Ultra-scale Visualization Climate Data Analysis Tools (UV-CDAT) Face-to-Face (F2F) Meeting, which was hosted by the Department of Energy, National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration, the European Infrastructure for the European Network of Earth System Modelling, and the Australian Department of Education. Both ESGF and UV-CDAT are global collaborations designed to develop a new generation of open-source software infrastructure that provides distributed access and analysis to observed and simulated data from the climate and weather communities. The tools and infrastructure developed under these international multi-agency collaborations are critical to understanding extreme weather conditions and long-term climate change, while the F2F meetings help to build a stronger climate and weather data science community and stronger federated software infrastructure. The 2013 F2F meeting determined requirements for existing and impending national and international community projects; enhancements needed for data distribution, analysis, and visualization infrastructure; and standards and resources needed for better collaborations.

  16. Feasibility Study of Supercritical Light Water Cooled Fast Reactors for Actinide Burning and Electric Power Production, 3rd Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Mac Donald, Philip Elsworth

    2002-06-01

    The use of light water at supercritical pressures as the coolant in a nuclear reactor offers the potential for considerable plant simplification and consequent capital and O&M cost reduction compared with current light water reactor (LWR) designs. Also, given the thermodynamic conditions of the coolant at the core outlet (i.e. temperature and pressure beyond the water critical point), very high thermal efficiencies of the power conversion cycle are possible (i.e. up to about 45%). Because no change of phase occurs in the core, the need for steam separators and dryers as well as for BWR-type re-circulation pumps is eliminated, which, for a given reactor power, results in a substantially shorter reactor vessel and smaller containment building than the current BWRs. Furthermore, in a direct cycle the steam generators are not needed.

  17. Synchrotron Emission on the Largest Scales: Radio Detection of the Cosmic-Web

    Indian Academy of Sciences (India)

    Shea D. Brown

    2011-12-01

    Shocks and turbulence generated during large-scale structure formation are predicted to produce large-scale, low surface-brightness synchrotron emission. On the largest scales, this emission is globally correlated with the thermal baryon distribution, and constitutes the `synchrotron cosmic-web’. I present the observational prospects and challenges for detecting this faint emission with upcoming SKA pathfinders.

  18. Towards 3rd generation organic tandem solar cells with 20% efficiency: Accelerated discovery and rational design of carbon-based photovoltaic materials through massive distributed volunteer computing

    Energy Technology Data Exchange (ETDEWEB)

    Aspuru-Guzik, Alan [Harvard Univ., Cambridge, MA (United States). Dept. of Chemistry and Chemical Biology

    2016-11-04

    Clean, affordable, and renewable energy sources are urgently needed to satisfy the 10s of terawatts (TW) energy need of human beings. Solar cells are one promising choice to replace traditional energy sources. Our broad efforts have expanded the knowledge of possible donor materials for organic photovoltaics, while increasing access of our results to the world through the Clean Energy Project database (www.molecularspace.org). Machine learning techniques, including Gaussian Processes have been used to calibrate frontier molecular orbital energies, and OPV bulk properties (open-circuit voltage, percent conversion efficiencies, and short-circuit current). This grant allowed us to delve into the solid-state properties of OPVs (charge-carrier dynamics). One particular example allowed us to predict charge-carrier dynamics and make predictions about future hydrogen-bonded materials.

  19. Analysis of Salmonella enterica with reduced susceptibility to the 3rd generation cephalosporin, ceftriaxone, isolated from US cattle during 2000-2004

    Science.gov (United States)

    Over the past decade enteric bacteria in Europe, Africa and Asia have become increasingly resistant to cephalosporin antimicrobials. This is largely due to the spread of genes encoding extended-spectrum ß-lactamase (ESBL) enzymes which can inactivate many cephalosporins. Recently these resistance me...

  20. X-ray holographic microscopy with zone plates applied to biological samples in the water window using 3rd harmonic radiation from the free-electron laser FLASH.

    Science.gov (United States)

    Gorniak, T; Heine, R; Mancuso, A P; Staier, F; Christophis, C; Pettitt, M E; Sakdinawat, A; Treusch, R; Guerassimova, N; Feldhaus, J; Gutt, C; Grübel, G; Eisebitt, S; Beyer, A; Gölzhäuser, A; Weckert, E; Grunze, M; Vartanyants, I A; Rosenhahn, A

    2011-06-06

    The imaging of hydrated biological samples - especially in the energy window of 284-540 eV, where water does not obscure the signal of soft organic matter and biologically relevant elements - is of tremendous interest for life sciences. Free-electron lasers can provide highly intense and coherent pulses, which allow single pulse imaging to overcome resolution limits set by radiation damage. One current challenge is to match both the desired energy and the intensity of the light source. We present the first images of dehydrated biological material acquired with 3rd harmonic radiation from FLASH by digital in-line zone plate holography as one step towards the vision of imaging hydrated biological material with photons in the water window. We also demonstrate the first application of ultrathin molecular sheets as suitable substrates for future free-electron laser experiments with biological samples in the form of a rat fibroblast cell and marine biofouling bacteria Cobetia marina.

  1. 深圳天麓三区种植屋面施工技术%Shenzhen Tianlu 3rd Zone planted roof construction technology

    Institute of Scientific and Technical Information of China (English)

    石伟国

    2011-01-01

    In Shenzhen Tianlu 3rd Zone Rhine Castle project, basement roof is designed as the sky garden, and it is planted roof above the waterproof layer. This paper introduces the waterproof design scheme, waterproof material characteristics, roof greening, and construction process of the planted roof.%深圳天麓三区莱茵堡项目地下室顶板设计为空中花园,防水层上为种植屋面.介绍该种植屋面防水设计方案、防水材料特点、屋面绿化及种植屋面的施工工艺.

  2. Final report for the 3rd Ex-Vessel Neutron Dosimetry Installations and Evaluations for Kori Unit 1 Reactor Pressure Vessel

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Byoung Chul; Yoo, Choon Sung; Lee, Sam Lai (and others)

    2008-03-15

    This report describes a neutron fluence assessment performed for the Kori Unit 1 pressure vessel belt line region based on the guidance specified in Regulatory Guide 1.190. In this assessment, maximum fast neutron exposures expressed in terms of fast neutron fluence (E>1 MeV) and iron atom displacements (dpa) were established for the belt line region of the pressure vessel. After Cycle 23 of reactor operation, 3rd Ex-Vessel Neutron Dosimetry Program was instituted at Kori Unit 1 to provide continuous monitoring of the belt line region of the reactor vessel. The use of the Ex-Vessel Neutron Dosimetry Program coupled with available surveillance capsule measurements provides a plant specific data base that enables the evaluation of the vessel exposure and the uncertainty associated with that exposure over the service life of the unit. Ex-Vessel Neutron Dosimetry has been evaluated at the conclusion of Cycle 24.

  3. Lateral seismic prediction of 3rd member sand reservoir in Shahejie formation in Southern Bohai oil field and the prediction result

    Energy Technology Data Exchange (ETDEWEB)

    Wengong, H.; Hongming, C.; Jinlian, L. (Geophysical Exploration Corporation, Hengli Oil Management Bureau, Niuzhuang, (Dongying City))

    1992-01-01

    Major reservoir in Southern Bohar Oil Field is the 3rd member turbidite sand in the Shahejie formation. The lateral seismic prediction involves the following interpretation jobs: comprehensive analysis of average velocity, synthetic seismogram and VSP data in the area; recognition of reservoir reflection characters in high-resolution seismic section which goes through well; lateral reservoir prediction using the reflection characters; plotting the structural map and isopach map of the reservoir; and offering favourable exploratory well site after reasonable reservoir evaluation that uses relevant materials, such as dynamic and static data of hydrocarbon. In this paper, using the technique, the authors have interpreted 17 sand bodies covering 38 km[sup 2] totally, and offered 25 exploration and development well sites. 8 wells have been completed, of which 7 wells produce industrial oil flow. The predicted horizons coincide with the drilled ones very well. Very good exploration effect has been received satisfactorily.

  4. Variations in the geomagnetic field strength in the 5th 3rd centuries BC in the eastern Mediterranean (according to narrowly dated ceramics)

    Science.gov (United States)

    Nachasova, I. E.; Burakov, K. S.; Il'Ina, T. A.

    2008-06-01

    The magnetization of ceramics from the eastern Mediterranean dated within a short period (mostly shorter than ±20 years) has been studied, which made it possible to specify the geomagnetic field variations on the time interval 5th 3rd centuries BC. The 11-year time series of the geomagnetic field strength values has been constructed. The field strength changes have been considered, which indicated that the centennial variation with a characteristic time of ˜130 years (according to the obtained data) is observed on this time interval as well as during the last two millennia. The ceramic material from the Mayskaya Gora archeological site (Taman), the preparation succession of which was established based on the shape of pottery but the problem of absolute dating was not solved, has been dated.

  5. An estimate of the minting method of three silver coins of the 3rd century B.C. through their microstructural study

    Energy Technology Data Exchange (ETDEWEB)

    Pistofidis, N.; Vourlias, G. [Department of Physics, Aristotle University of Thessaloniki, Thessaloniki (Greece); Dilo, T. [Department of Physics, FNSc, University of Tirana, Tirana (Albania); Civici, N. [Department of Spectroscopy, Institute of Nuclear Physics, Tirana (Albania); Gjongecaj, Sh. [Department of Antiquity, Institute of Archaeology, Tirana (Albania); Skolianos, S. [Physical Metallurgy Laboratory, Department of mechanical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki (Greece); Polychroniadis, E.K., E-mail: polychr@auth.g [Department of Physics, Aristotle University of Thessaloniki, Thessaloniki (Greece)

    2010-05-01

    The microstructure of three silver coins of the 3rd century B.C. from the Illyrian King Monounios and the ancient Greek cities of Dyrrachion and Corcyra, belonging to the Kreshpan hoard, was determined with X-ray diffraction and transmission electron microscopy in order to investigate their minting method. It is deduced that the coins are characterized by a large number of structural defects, mainly dislocations, twins and microtwins, which in some cases were bent. These crystal defects are common in each of the coins examined. This information allowed the formulation of a possible minting method. Since twins in FCC metals are formed with thermal treatment, and mechanical twinning is rather improbable, it seems that the coins were initially hot-worked. Bent twins indicate that working continued during cooling. Especially for the Corcyra coin it was deduced that it was treated at higher temperature or its cooling rate was lower.

  6. Spin echo in synchrotrons

    Science.gov (United States)

    Chao, Alexander W.; Courant, Ernest D.

    2007-01-01

    As a polarized beam is accelerated through a depolarization resonance, its polarization is reduced by a well-defined calculable reduction factor. When the beam subsequently crosses a second resonance, the final beam polarization is considered to be reduced by the product of the two reduction factors corresponding to the two crossings, each calculated independently of the other. This is a good approximation when the spread of spin precession frequency Δνspin of the beam (particularly due to its energy spread) is sufficiently large that the spin precession phases of individual particles smear out completely during the time τ between the two crossings. This approximate picture, however, ignores two spin dynamics effects: an interference-overlap effect and a spin echo effect. This paper is to address these two effects. The interference-overlap effect occurs when Δνspin is too small, or when τ is too short, to complete the smearing process. In this case, the two resonance crossings overlap each other, and the final polarization exhibits constructive or destructive interference patterns depending on the exact value of τ. Typically, the beam’s energy spread is large and this interference-overlap effect does not occur. To study this effect, therefore, it is necessary to reduce the beam energy spread and to consider two resonance crossings very close to each other. The other mechanism, also due to the interplay between two resonance crossings, is spin echo. It turns out that even when the precession phases appear to be completely smeared between the two crossings, there will still be a sudden and short-lived echo signal of beam polarization at a time τ after the second crossing; the magnitude of which can be as large as 57%. This echo signal exists even when the beam has a sizable energy spread and when τ is very large, and could be a sensitive (albeit challenging) way to experimentally test the intricate spin dynamics in a synchrotron. After giving an analysis

  7. Spin Echo in Synchrotrons

    Energy Technology Data Exchange (ETDEWEB)

    Chao, Alexander W.; /SLAC; Courant, Ernest D.; /Brookhaven

    2006-12-01

    As a polarized beam is accelerated through a depolarization resonance, its polarization is reduced by a well-defined calculable reduction factor. When the beam subsequently crosses a second resonance, the final beam polarization is considered to be reduced by the product of the two reduction factors corresponding to the two crossings, each calculated independently of the other. This is a good approximation when the spread of spin precession frequency {Delta}{nu}{sub spin} of the beam (particularly due to its energy spread) is sufficiently large that the spin precession phases of individual particles smear out completely during the time {tau} between the two crossings. This approximate picture, however, ignores two spin dynamics effects: an interference effect and a spin echo effect. This paper is to address these two effects. The interference effect occurs when {Delta}{nu}{sub spin} is too small, or when {tau} is too short, to complete the smearing process. In this case, the two resonance crossings interfere with each other, and the final polarization exhibits constructive or destructive patterns depending on the exact value of {tau}. Typically, the beam's energy spread is large and this interference effect does not occur. To study this effect, therefore, it is necessary to reduce the beam energy spread and to consider two resonance crossings very close to each other. The other mechanism, also due to the interplay between two resonance crossings, is spin echo. It turns out that even when the precession phases appear to be completely smeared between the two crossings, there will still be a sudden and short-lived echo signal of beam polarization at a time {tau} after the second crossing; the magnitude of which can be as large as 57%. This echo signal exists even when the beam has a sizable energy spread and when {tau} is very large, and could be a sensitive (albeit challenging) way to experimentally test the intricate spin dynamics in a synchrotron. After giving

  8. Reminder of the edge effect in Synchrotron radiation

    CERN Document Server

    Burkhardt, H

    1998-01-01

    The synchrotron radiation in the LHC will be rather soft and weak, compared to high energy electron machines. Still it is expected to generate non negligible heating and photon-induced gas desorption. A summary of standard formulas and numbers for the LHC have been collected in this note, including a very rough discussion of the spectrum shift expected by the edge effect.

  9. Characterizing THz Coherent Synchrotron Radiation at Femtosecond Linear Accelerator

    Institute of Scientific and Technical Information of China (English)

    LIN Xu-Ling; ZHANG Jian-Bing; LU YU; LUO Feng; LU Shan-Liang; YU Tie-Min; DAI Zhi-Min

    2009-01-01

    The generation and observation of coherent THz synchrotron radiation from femtosecond electron bunches in the Shanghai Institute of Applied Physics femtosecond accelerator device is reported.We describe the experiment setup and present the first result of THz radiation properties such as power and spectrum.

  10. Synchrotron radiation and structural proteomics

    CERN Document Server

    Pechkova, Eugenia

    2011-01-01

    This book presents an overview of the current state of research in both synchrotron radiation and structural proteomics from different laboratories worldwide. The book presents recent research results in the most advanced methods of synchrotron radiation analysis, protein micro- and nano crystallography, X-ray scattering and X-ray optics, coherent X-Ray diffraction, and laser cutting and contactless sample manipulation are described in details. The book focuses on biological applications and highlights important aspects such as radiation damage and molecular modeling.

  11. Modelisation of synchrotron radiation losses in realistic tokamak plasmas

    Energy Technology Data Exchange (ETDEWEB)

    Albajar, F.; Johner, J.; Granata, G

    2000-08-01

    Synchrotron radiation losses become significant in the power balance of high-temperature plasmas envisaged for next step tokamaks. Due to the complexity of the exact calculation, these losses are usually roughly estimated with expressions derived from a plasma description using simplifying assumptions on the geometry, radiation absorption, and density and temperature profiles. In the present article, the complete formulation of the transport of synchrotron radiation is performed for realistic conditions of toroidal plasma geometry with elongated cross-section, using an exact method for the calculation of the absorption coefficient, and for arbitrary shapes of density and temperature profiles. The effects of toroidicity and temperature profile on synchrotron radiation losses are analyzed in detail. In particular, when the electron temperature profile is almost flat in the plasma center, as for example in ITB confinement regimes, synchrotron losses are found to be much stronger than in the case where the profile is represented by its best generalized parabolic approximation, though both cases give approximately the same thermal energy contents. Such an effect is not included in present approximate expressions. Finally, we propose a seven-variable fit for the fast calculation of synchrotron radiation losses. This fit is derived from a large database, which has been generated using a code implementing the complete formulation and optimized for massively parallel computing. (author)

  12. Optoelectronic Picosecond Detection of Synchrotron X-rays

    Energy Technology Data Exchange (ETDEWEB)

    Durbin, Stephen M. [Purdue Univ., West Lafayette, IN (United States)

    2017-08-04

    The goal of this research program was to develop a detector that would measure x-ray time profiles with picosecond resolution. This was specifically aimed for use at x-ray synchrotrons, where x-ray pulse profiles have Gaussian time spreads of 50-100 ps (FWHM), so the successful development of such a detector with picosecond resolution would permit x-ray synchrotron studies to break through the pulse width barrier. That is, synchrotron time-resolved studies are currently limited to pump-probe studies that cannot reveal dynamics faster than ~50 ps, whereas the proposed detector would push this into the physically important 1 ps domain. The results of this research effort, described in detail below, are twofold: 1) the original plan to rely on converting electronic signals from a semiconductor sensor into an optical signal proved to be insufficient for generating signals with the necessary time resolution and sensitivity to be widely applicable; and 2) an all-optical method was discovered whereby the x-rays are directly absorbed in an optoelectronic material, lithium tantalate, which can then be probed by laser pulses with the desired picosecond sensitivity for detection of synchrotron x-rays. This research program has also produced new fundamental understanding of the interaction of x-rays and optical lasers in materials that has now created a viable path for true picosecond detection of synchrotron x-rays.

  13. 6th International School “Synchrotron Radiation and Magnetism”

    CERN Document Server

    Bulou, Hervé; Joly, Loic; Scheurer, Fabrice; Magnetism and Synchrotron Radiation : Towards the Fourth Generation Light Sources

    2013-01-01

     Advances in the synthesis of new materials with often complex, nano-scaled structures require increasingly sophisticated experimental techniques that can probe the electronic states, the atomic magnetic moments and the magnetic microstructures responsible for the properties of these materials. At the same time, progress in synchrotron radiation techniques has ensured that these light sources remain a key tool of investigation, e.g. synchrotron radiation sources of the third generation are able to support magnetic imaging on a sub-micrometer scale. With the Sixth Mittelwihr School on Magnetism and Synchrotron Radiation the tradition of teaching the state-of-the-art on modern research developments continues and is expressed through the present set of extensive lectures provided in this volume. While primarily aimed at postgraduate students and newcomers to the field, this volume will also benefit researchers and lecturers actively working in the field.

  14. A dedicated infrared synchrotron ring at the ALS

    Science.gov (United States)

    Barry, W.; Biocca, A.; Byrd, J. M.; Byrne, W.; Kwiatkowski, S.; Martin, Michael C.; McKinney, Wayne R.; Nishimura, H.; Sannibale, F.; Steier, C.; Rex, K.; Robin, D.; Stover, G.; Thur, W.; Wu, Y.

    2002-03-01

    We present preliminary plans for a storage ring dedicated to and optimized for the production of synchrotron radiation over the infrared wavelength range from 1 micron to > 1 mm. The site for the 66 m circumference ring is atop the existing ALS booster synchrotron shielding. This area provides enough floor space for both the ring and beamlines, and hutches. We plan to operate the ring in two modes: as a conventional light source and as a superradiant source in the far-IR. In the conventional mode, our design allows greater transmission of light in the far-infrared than typical light sources, and significantly improves beam stability. In the superradiant mode, we hope to achieve very intense coherent emission of synchrotron radiation over the 0.2 - 10 mm wavelength range by shortening the electron bunches. This mode will generate much higher flux & brightness than conventional far-IR and coherent THz sources.

  15. A Kinesthetic Learning Approach to Earth Science for 3rd and 4th Grade Students on the Pajarito Plateau, Los Alamos, NM

    Science.gov (United States)

    Wershow, H. N.; Green, M.; Stocker, A.; Staires, D.

    2010-12-01

    Current efforts towards Earth Science literacy in New Mexico are guided by the New Mexico Science Benchmarks [1]. We are geoscience professionals in Los Alamos, NM who believe there is an important role for non-traditional educators utilizing innovative teaching methods. We propose to further Earth Science literacy for local 3rd and 4th grade students using a kinesthetic learning approach, with the goal of fostering an interactive relationship between the students and their geologic environment. We will be working in partnership with the Pajarito Environmental Education Center (PEEC), which teaches the natural heritage of the Pajarito Plateau to 3rd and 4th grade students from the surrounding area, as well as the Family YMCA’s Adventure Programs Director. The Pajarito Plateau provides a remarkable geologic classroom because minimal structural features complicate the stratigraphy and dramatic volcanic and erosional processes are plainly on display and easily accessible. Our methodology consists of two approaches. First, we will build an interpretive display of the local geology at PEEC that will highlight prominent rock formations and geologic processes seen on a daily basis. It will include a simplified stratigraphic section with field specimens and a map linked to each specimen’s location to encourage further exploration. Second, we will develop and implement a kinesthetic curriculum for an exploratory field class. Active engagement with geologic phenomena will take place in many forms, such as a scavenger hunt for precipitated crystals in the vesicles of basalt flows and a search for progressively smaller rhyodacite clasts scattered along an actively eroding canyon. We believe students will be more receptive to origin explanations when they possess a piece of the story. Students will be provided with field books to make drawings of geologic features. This will encourage independent assessment of phenomena and introduce the skill of scientific observation. We

  16. The Safety of Artemisinin Derivatives for the Treatment of Malaria in the 2nd or 3rd Trimester of Pregnancy: A Systematic Review and Meta-Analysis

    Science.gov (United States)

    van Eijk, Anna Maria; Sevene, Esperanca; Dellicour, Stephanie; Weiss, Noel S.; Emerson, Scott; Steketee, Richard; ter Kuile, Feiko O.; Stergachis, Andy

    2016-01-01

    Given the high morbidity for mother and fetus associated with malaria in pregnancy, safe and efficacious drugs are needed for treatment. Artemisinin derivatives are the most effective antimalarials, but are associated with teratogenic and embryotoxic effects in animal models when used in early pregnancy. However, several organ systems are still under development later in pregnancy. We conducted a systematic review and meta-analysis of the occurrence of adverse pregnancy outcomes among women treated with artemisinins monotherapy or as artemisinin-based combination therapy during the 2nd or 3rd trimesters relative to pregnant women who received non-artemisinin antimalarials or none at all. Pooled odds ratio (POR) were calculated using Mantel-Haenszel fixed effects model with a 0.5 continuity correction for zero events. Eligible studies were identified through Medline, Embase, and the Malaria in Pregnancy Consortium Library. Twenty studies (11 cohort studies and 9 randomized controlled trials) contributed to the analysis, with 3,707 women receiving an artemisinin, 1,951 a non-artemisinin antimalarial, and 13,714 no antimalarial. The PORs (95% confidence interval (CI)) for stillbirth, fetal loss, and congenital anomalies when comparing artemisinin versus quinine were 0.49 (95% CI 0.24–0.97, I2 = 0%, 3 studies); 0.58 (95% CI 0.31–1.16, I2 = 0%, 6 studies); and 1.00 (95% CI 0.27–3.75, I2 = 0%, 3 studies), respectively. The PORs comparing artemisinin users to pregnant women who received no antimalarial were 1.13 (95% CI 0.77–1.66, I2 = 86.7%, 3 studies); 1.10 (95% CI 0.79–1.54, I2 = 0%, 4 studies); and 0.79 (95% CI 0.37–1.67, I2 = 0%, 3 studies) for miscarriage, stillbirth and congenital anomalies respectively. Treatment with artemisinin in 2nd and 3rd trimester was not associated with increased risks of congenital malformations or miscarriage and may be was associated with a reduced risk of stillbirths compared to quinine. This study updates the reviews

  17. Veterinary Microbiology, 3rd Edition

    Science.gov (United States)

    Veterinary Microbiology, Third Edition is organized into four sections and begins with an updated and expanded introductory section on infectious disease pathogenesis, diagnosis and clinical management. The second section covers bacterial and fungal pathogens, and the third section describes viral d...

  18. Introducing ZBrush 3rd Edition

    CERN Document Server

    Keller, Eric

    2012-01-01

    Learn ZBrush inside and out with this updated new edition Get totally comfortable sculpting in a digital environment with the latest edition of this bestselling beginner's guide to ZBrush. Fully updated for the newest version of the software, ZBrush 4R3, this book dispels any fears you might have about the difficulty of using ZBrush and soon has you creating realistic, cartoon, and organic models with flair. Learn all the essentials, as you complete fun tutorials on painting, meshes, organic scripting, hard surface sculpting, lighting, rendering, and more. Introduces you to ZBrush, the sculpt

  19. 3rd International Algebra Conference

    CERN Document Server

    Fong, Yuen; Zelmanov, Efim

    2003-01-01

    This volume contains one invited lecture which was presented by the 1994 Fields Medal­ ist Professor E. Zelmanov and twelve other papers which were presented at the Third International Conference on Algebra and Their Related Topics at Chang Jung Christian University, Tainan, Republic of China, during the period June 26-July 1, 200l. All papers in this volume have been refereed by an international referee board and we would like to express our deepest thanks to all the referees who were so helpful and punctual in submitting their reports. Thanks are also due to the Promotion and Research Center of National Science Council of Republic of China and the Chang Jung Christian University for their generous financial support of this conference. The spirit of this conference is a continuation of the last two International Tainan­ Moscow Algebra Workshop on Algebras and Their Related Topics which were held in the mid-90's of the last century. The purpose of this very conference was to give a clear picture of the rece...

  20. Optical systems for synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Howells, M.R.

    1985-12-01

    Various fundamental topics which underlie the design and use of optical systems for synchrotron radiation are considered from the viewpoint of linear system theory. These topics include the damped harmonic oscillator, free space propagation of an optical field, electromagnetic theory of optical properties of materials, theory of dispersion, and the Kramers-Kronig relations. 32 refs., 5 figs. (LEW)

  1. DESY: Synchrotron and storage rings

    CERN Multimedia

    1972-01-01

    An improvement programme has been under way for several years at the 7.5 GeV électron synchrotron at DESY. In particular it has been designed to increase the accelerated beam intensity, to achieve better quality of the ejected électron beams and photon beams and to improve machine reliability.

  2. Biological physics and synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Filhol, J.M.; Chavanne, J. [European Synchrotron Radiation Facility, 38 - Grenoble (France); Weckert, E. [Hasylab at Desy, Hamburg (Germany)] [and others

    2001-07-01

    This conference deals with the applications of synchrotron radiation to current problems in biology and medicine. Seven sessions take stock on the subject: sources and detectors; inelastic scattering and dynamics; muscle diffraction; reaction mechanisms; macromolecular assemblies; medical applications; imaging and spectroscopy. The document presents the papers abstracts. (A.L.B.)

  3. Synchrotron radiation and biomedical imaging

    Energy Technology Data Exchange (ETDEWEB)

    Luccio, A.

    1986-08-01

    In this lecture we describe the characteristics of Synchrotron radiation as a source of X rays. We discuss the properties of SR arc sources, wigglers, undulators and the use of backscattering of laser light. Applications to angiography, X ray microscopy and tomography are reviewed. 16 refs., 23 figs.

  4. Phonological awareness and general performance in reading: What’s the relation? A study with 2nd and 3rd year fundamental school students

    Directory of Open Access Journals (Sweden)

    Ana Paula Couceiro Figueira

    2017-01-01

    Full Text Available The objective of this study was to test the content and concurrent validity of Prolec-R (FIGUEIRA; LOPES, n.d., investigation version, exploring the relations as a proof of phonological awareness (phoneme synthesis, SICOLE-R evaluation (FIGUEIRA; LOBO; LOPES; JIMÉNEZ, n.d., investigation version. The theoretical background comprises the evaluation of cognitive processes involved in reading (JIMENEZ’S and CUETOS’S perspectives, in which the two tests employed assume too evaluate such processes, and are considered concurrent procedures. Both are destined to children from 6 to 12 years old. The methodology used, for exploration and accessibility, a sample containing children from the 2nd and 3rd year of elementary school, from the public and education systems in Coimbra and Beira Interior Norte. The results revealed the existence of a positive and significant relation between the reading of words, reading of pseudo words, grammatical structures, punctuation marks and sentence comprehension (PROLEC-R and the phoneme synthesis (SICOLE-R.

  5. Searching for new gamma-ray blazar candidates in the 3rd Palermo BAT Hard X-ray Catalog with WISE

    CERN Document Server

    Maselli, A; Cusumano, G; D'Abrusco, R; La Parola, V; Paggi, A; Segreto, A; Smith, Howard A; Tosti, G

    2013-01-01

    We searched for gamma-ray blazar candidates among the 382 unidentified hard X-ray sources of the 3rd Palermo BAT Catalog (3PBC) obtained from the analysis of 66 months of SWIFT-BAT survey data and listing 1586 sources. We adopted a recently developed association method based on the peculiar infrared colors which characterize the gamma-ray blazars included in the second catalog of active galactic nuclei detected by the Fermi Large Area Telescope (2LAC). We used this method exploiting the data of the all-sky survey performed by the Wide-Field Infrared Survey Explorer (WISE) to establish correspondences between unidentified 3PBC sources and WISE gamma-ray blazar candidates located within the BAT positional uncertainty region at 99% confidence level. We obtained a preliminary list of candidates for which we analysed all the available data in the SWIFT archive to complement the information in the literature and in the radio, infrared and optical catalogs with the information on their optical-UV and soft X-ray emis...

  6. The Impact of Comprehensive Agrarian Reform Program (CARP on FarmerBeneficiaries in the 3rd Congressional District of Iloilo, Philippines

    Directory of Open Access Journals (Sweden)

    Ronaldo F. Frufonga

    2016-02-01

    Full Text Available The study aims to assess the impact of the comprehensive agrarian reform program on farmer beneficiaries in the 3rd Congressional District of the province of Iloilo for the year 2014. The Network design was used as research design to obtain and provide useful information in judging decision alternatives involve in the impact of Comprehensive Agrarian Reform Program to the farmerbeneficiaries. The participants were the 386 farmer beneficiaries. Data were gathered using surveychecklist form and analyzed through frequency counts, percentages, mean and t-test of dependent/correlated means. The researcher observed ethical considerations in conducting the study. The results show that the comprehensive agrarian reform program has a positive impact on the lives of the farmer beneficiaries. It has contributed to higher income and led to reduced poverty incidence before and after the program. The beneficiaries tend to be better off in terms of wellbeing compared to before the implementation of the program. They have better access to sanitary toilet facilities and potable water, and have a propensity to have higher educational attainment. Support services became essential in enhancing food security and building infrastructures that uphold food production, enhance trade, and increase income of the household beneficiaries living in the rural community. Further, the household farmer beneficiaries have a propensity to boost the chances to reduce poverty.

  7. Evidence of human-induced morphodynamic changes along the Campania coastal areas (southern Italy) since the 3rd-4th cent. AD

    Science.gov (United States)

    Russo Ermolli, Elda; Romano, Paola; Liuzza, Viviana; Amato, Vincenzo; Ruello, Maria Rosaria; Di Donato, Valentino

    2014-05-01

    Campania has always offered suitable climatic and physiographic conditions for human settlements since prehistoric times. In particular, many Graeco-Roman towns developed along its coasts starting from the 7th-6th cent. BC. In the last decade, geoarchaelogical surveys have been carried out in the archaeological excavations of Neapolis, Paestum and Elea-Velia allowing the main steps of the landscape evolution around these towns to be defined in detail. The greek town of Neapolis rose in the late 6th cent. BC [1] on a terrace overlooking a low-relief rocky coast surrounded by volcanic hills. Port activities developed in a protected bay facing the town from the 4th-2nd cent. BC up to the 4th cent. AD, as testified by the discovery of structures and shipwrecks [2, 3, 4]. Starting from the 3rd cent. AD a spit bar formed at the bay entrance causing the progressive establishment of a lagoon which was gradually filled up by alluvial inputs and completely closed in the 5th cent. AD. During the same period, episodes of increased alluvial inputs were also recorded further west along the coast, where a narrow sandy beach formed at the cliff toe. The greek town of Poseidonia, renamed Paestum by the Romans, was founded in the 540 BC on a travertine terrace facing the sandy littoral of a prograding coastal plain [5]. In front of the main town door, a coastal lagoon developed thanks to the growth of a dune ridge and was probably used for harbor activities [5]. After this period the shoreline shifted seawards, another dune ridge formed and the back-ridge depression was filled with fluvial-marshy deposits, slowly drying up. Phases of travertine deposition, which characterized the SE sector of the plain all along the Holocene, were recorded in the northern and southern quarters of the town in historical times and were connected to the abandonment of the town in the early Medieval times. The greek colony of Elea-Velia was located on top of a siliciclastic promontory where the ruins of

  8. Stable isotope and trace element studies on gladiators and contemporary Romans from Ephesus (Turkey, 2nd and 3rd Ct. AD--mplications for differences in diet.

    Directory of Open Access Journals (Sweden)

    Sandra Lösch

    Full Text Available The gladiator cemetery discovered in Ephesus (Turkey in 1993 dates to the 2nd and 3rd century AD. The aim of this study is to reconstruct diverse diet, social stratification, and migration of the inhabitants of Roman Ephesus and the distinct group of gladiators. Stable carbon, nitrogen, and sulphur isotope analysis were applied, and inorganic bone elements (strontium, calcium were determined. In total, 53 individuals, including 22 gladiators, were analysed. All individuals consumed C3 plants like wheat and barley as staple food. A few individuals show indication of consumption of C4 plants. The δ13C values of one female from the gladiator cemetery and one gladiator differ from all other individuals. Their δ34S values indicate that they probably migrated from another geographical region or consumed different foods. The δ15N values are relatively low in comparison to other sites from Roman times. A probable cause for the depletion of 15N in Ephesus could be the frequent consumption of legumes. The Sr/Ca-ratios of the gladiators were significantly higher than the values of the contemporary Roman inhabitants. Since the Sr/Ca-ratio reflects the main Ca-supplier in the diet, the elevated values of the gladiators might suggest a frequent use of a plant ash beverage, as mentioned in ancient texts.

  9. Physics design of SSRF synchrotron radiation security

    Institute of Scientific and Technical Information of China (English)

    XU Yi; DAI Zhi-Min; LIU Gui-Min

    2009-01-01

    High brightness of SSRF brings about synchrotron radiation security problems,which will be solved in physics design.The main radiations are generated from bending magnets and insertion devices.Since the fact that radiation power and radiating area are different in these two kinds of synchrotron radiation,the arrangements of photon absorbers,diaphragms and other vacuum components need to be treated distinctively.In addition.SSRF interlock protection threshold is defined and the beam orbit in the straight line is limited.Hence.beam orbit in the bending magnets and IDs are also restricted by the threshold.The orbit restriction is calculated and helps us to arrange the vacuum components.In this paper,beam orbit distortion restricted by interlock protection threshold,radiation power,radiation angle and illuminating area are calculated.From the calculation results,the physics designs in manufacture and installation vacuum components are put forward.By commissioning,it is shown that physics requirements are met rigidly in the engineering process.

  10. Progress of the Synchrotron Light Source ALBA

    CERN Document Server

    Einfeld, Dieter; Campmany, Josep; Muñoz, Marc; Pont, Montserrat

    2005-01-01

    ALBA will be a third generation synchrotron light source built in Spain near Barcelona. Commissioning of the storage ring is foreseen to start at the end of 2008. The design phase of ALBA is almost completed and the first components are ready to be ordered. A 100 MeV LINAC will inject electrons into a nominal energy booster synchrotron of similar circumference as the storage ring, so that both accelerators will share the same tunnel. The storage ring, working at 3 GeV with a circumference of 268.8 m, has been designed for a maximum current of 400 mA. The lattice is based on an extended DBA structure and has a nominal emittance of 4 nm.rad.The machine has a four fold symmetry with 4 long straight sections (8 m), 12 medium (4.2 m) and 8 short (2.6 m). This report concentrates on recent design developments, component choices and current status. Another paper at this conference deals with accelerator physics issues.

  11. Does 3rd age plus 3rd world equal 3rd class?

    Science.gov (United States)

    Tout, K

    1992-04-01

    The patterns of care of the aged population are being influenced by demographic changes, migration, and industrialization in developing countries. There is no longer a secure place for the elders in the community as chiefs, sages, or useful members of the household. In very large mega-cities the aged living in an extended family are more prone to psychological problems than in a lone living situation. There are many variations in the degree of abandonment or loss of dignity, which are described in examples from Vilcabamba, Potosi, Lima, and Belize. For example in Belize, there are no cities to migrate to so people leave to seek their fortunes in the US or the UK. Solutions are possible within the community. The experiences of HelpAge International are reported for Pro Vida, Colombia; India; and Sri Lanka. In Colombia efforts were made to acquire a bakery so that the elderly could be employed in bread baking, donating loaves to institutions, and selling half the loaves on the street. Other projects involved improving living conditions for lone old people in shanty towns and training social workers. The institutional aim was to concentrate on a locale. Attention was given to providing instruction in classrooms to enlighten youth about the needs of the elderly. HelpAge in India concentrated on eye problems of the elderly in remote areas through awareness and fundraising campaigns. HelpAge Sri Lanka has set up seminars and training programs which have been models for similar programs in Thailand. Shared experience with the problems of aged beggars suggests that funding must come from nongovernmental agencies. The cultivation and sale of herbs by the elderly was promoted in Vilcabamba; in Jamaica a memory bank was established for preserving cultural traditions. Abandoned industries have been revived. The needs of the organizers, who are primarily volunteers, are organization skills. Governments can supplement meager funds by enhancing traditional life, by removing obstacles to foreign aid, and by avoiding spending on prestige projects and questionable projects imported from Western countries. Reinforcement of families and of local community groups is needed.

  12. Medialogy (English Information Brochure on the education M.Sc.,Medialogy, 3rd to 10th semester (B.Sc. & M.Sc) - For graduates from higher study programmes such as Multimedia Design and IT Graduates)

    DEFF Research Database (Denmark)

    Nordahl, Rolf

    2005-01-01

    An information brochure, 24 pages, in English which describes the education M.Sc., Medialogy, offered by Aalborg University in Copenhagen and Esbjerg. The brochure describes the 3rd to 10th semester (B.Sc. and M.Sc. degree) of the education. The information is primarily directed toward potential...

  13. A «titulus pictus» with an imperial mention in «Carthago Nova» and some considerations concerning the urban dynamics of the city in the early 3rd century ad

    Directory of Open Access Journals (Sweden)

    José Miguel NOGUERA CELDRÁN

    2017-06-01

    Full Text Available The archaeological and epigraphic record in Carthago Nova suggests that the colony underwent a period of instability and urban retreat during the second half of the 2nd and the 3rd century ad. This was probably triggered by the slowing down of economic activity, a shrinking population and collapse of local institutions and the crisis of evergetism. The process caused a substantial transformation of urban landscapes and a reduction of the size of the inhabited areas; the interruption of the epigraphic habit, the abandonment, looting and reoccupation of public areas and buildings; the pulling down of domestic buildings; and the insufficient maintenance of the urban road network. This has led some specialists to suggest that the city lost importance, and even that it could have been totally abandoned during the second half of the 2nd and, especially, the 3rd century ad. The recent discovery of the substantial transformation of the Atrium Building (Insula i Molinete in the early 3rd century ad, and of a titulus pictus which mentions the consuls for the year, Heliogabalus and the prefect of the praetorium Adventus, which dates the final date for the refectio in 218 ad, resituates the debate around the retreat of the urban centre in the 2nd and 3rd centuries ad.

  14. Metabolic engineering of E.coli for the production of a precursor to artemisinin, an anti-malarial drug [Chapter 25 in Manual of Industrial Microbiology and Biotechnology, 3rd edition

    Energy Technology Data Exchange (ETDEWEB)

    Petzold, Christopher; Keasling, Jay

    2011-07-18

    This document is Chapter 25 in the Manual of Industrial Microbiology and Biotechnology, 3rd edition. Topics covered include: Incorporation of Amorpha-4,11-Diene Biosynthetic Pathway into E. coli; Amorpha-4,11-Diene Pathway Optimization; "-Omics" Analyses for Increased Amorpha-4,11-Diene Production; Biosynthetic Oxidation of Amorpha-4,11-Diene.

  15. 齐刺法治疗腰三横突综合征123例%TRIPLE NEEDLING FOR TREATING 123 CASES OF THE 3rd LUMBAR TRANSVERSE SYNDROME

    Institute of Scientific and Technical Information of China (English)

    刘国建

    2007-01-01

    @@ The 3rd lumbar transverse process syndrome is a frequently encountered disease in clinic. It is caused by prolonged stimulation of the fascia of the psoas major muscles by the pointed end of the excessive long transverse processes, leading to inflammation of the fibrous tissues around the transverse processes.

  16. The ENCCA-WP7/EuroSarc/EEC/PROVABES/EURAMOS 3rd European Bone Sarcoma Networking Meeting/Joint Workshop of EU Bone Sarcoma Translational Research Networks; Vienna, Austria, September 24-25, 2015. Workshop Report

    NARCIS (Netherlands)

    Kager, L.; Whelan, J.; Dirksen, U.; Hassan, B.; Anninga, J.; Bennister, L.; Bovee, J.V.; Brennan, B.; Broto, J.M.; Brugieres, L.; Cleton-Jansen, A.M.; Copland, C.; Dutour, A.; Fagioli, F.; Ferrari, S.; Fiocco, M.; Fleuren, E.D.; Gaspar, N.; Gelderblom, H.; Gerrand, C.; Gerss, J.; Gonzato, O.; Graaf, W. van der; Hecker-Nolting, S.; Herrero-Martin, D.; Klco-Brosius, S.; Kovar, H.; Ladenstein, R.; Lancia, C.; Ledeley, M.C.; McCabe, M.G.; Metzler, M.; Myklebost, O.; Nathrath, M.; Picci, P.; Potratz, J.; Redini, F.; Richter, G.H.; Reinke, D.; Rutkowski, P.; Scotlandi, K.; Strauss, S.; Thomas, D; Tirado, O.M.; Tirode, F.; Vassal, G.; Bielack, S.S.

    2016-01-01

    This report summarizes the results of the 3rd Joint ENCCA-WP7, EuroSarc, EEC, PROVABES, and EURAMOS European Bone Sarcoma Network Meeting, which was held at the Children's Cancer Research Institute in Vienna, Austria on September 24-25, 2015. The joint bone sarcoma network meetings bring together Eu

  17. Baseline Hepatitis B Virus DNA Level is a Promising Factor for Predicting the 3rd Month Virological Response to Entecavir Therapy: A Study of Strict Defined Hepatitis B virus Induced Cirrhosis

    Institute of Scientific and Technical Information of China (English)

    Yang Xu; Xiao-Ning Wu; Yi-Wen Shi; Wei Wei; Ai-Ting Yang; Ya-Meng Sun; Wen-Shan Zhao

    2015-01-01

    Background:Cirrhosis is a common complication of chronic hepatitis B.It remains unclear if viral and biochemical parameters at baseline affect virological response to entecavir and therefore warrant investigation.In the present study,we aimed to evaluate the efficacy of entecavir therapy by monitoring virological response at the end of the 3rd month of treatment and try to figure out whether baseline factors could help predict it in a cohort of hepatitis B virus (HBV) compensated cirrhosis patients and to determine the cut-off value of a predicting parameter.Methods:A total of 91 nucleos(t)ide-na(i)ve patients with HBV induced cirrhosis (compensatory stage) were enrolled in a prospective cohort.HBV DNA and alanine aminotransferase (ALT) were tested at baseline and monitored every 3-6 months after starting therapy.Results:Of all 91 patients,the median follow-up time was 12 (9-24) months.Overall,64 patients (70.3%) achieved virological response in the 3rd month.Univariate analysis showed that the 3rd month virological response can be predicted by baseline HBV DNA levels (P < 0.001,odds ratio [OR]:2.13,95% confidence interval [CI]:1.44-3.15),ALT value (P =0.023,OR:1.0 1,95% CI:1.00-1.01) and hepatitis B e antigen (HBeAg) negativity (P=0.016,OR:0.30,95% CI:0.11-0.80).Multiple regression analysis showed baseline HBV DNA level was the only parameter related to full virological response.Higher baseline HBV DNA strata indicated a higher probability that HBV DNA remains detectable at the 3rd month (P =0.001).Area under receiver operating characteristic curve for determining the 3rd month virological response by baseline HBV DNA was 77.6% (95% CI:66.7-85.2%),with a best cut-off value of 5.8 log10.Conclusions:Baseline HBV DNA,HBeAg negativity,and ALT were independent factors contributing to virological response at the 3rd month.Further,multiple regression showed that HBV DNA level was the only parameter predicting full virological response as early as the 3rd

  18. Medical Applications of Synchrotron Radiation

    Science.gov (United States)

    Thomlinson, W.

    1991-10-01

    Ever since the first diagnostic x-ray was done in the United States on February 3, 1896, the application of ionizing radiation to the field of medicine has become increasingly important. Both in clinical medicine and basic research the use of x-rays for diagnostic imaging and radiotherapy is now widespread. Radiography, angiography, CAT and PETT scanning, mammography, and nuclear medicine are all examples of technologies developed to image the human anatomy. In therapeutic applications, both external and internal sources of radiation are applied to the battle against cancer. The development of dedicated synchrotron radiation sources has allowed exciting advances to take place in many of these applications. The new sources provide tunable, high-intensity monochromatic beams over a wide range of energies which can be tailored to specific programmatic needs. This paper surveys those areas of medical research in which synchrotron radiation facilities are actively involved.

  19. Medical applications of synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Thomlinson, W.

    1991-10-01

    Ever since the first diagnostic x-ray was done in the United States on February 3, 1896, the application of ionizing radiation to the field of medicine has become increasingly important. Both in clinical medicine and basic research the use of x-rays for diagnostic imaging and radiotherapy is now widespread. Radiography, angiography, CAT and PETT scanning, mammography, and nuclear medicine are all examples of technologies developed to image the human anatomy. In therapeutic applications, both external and internal sources of radiation are applied to the battle against cancer. The development of dedicated synchrotron radiation sources has allowed exciting advances to take place in many of these applications. The new sources provide tunable, high-intensity monochromatic beams over a wide range of energies which can be tailored to specific programmatic needs. This paper surveys those areas of medical research in which synchrotron radiation facilities are actively involved.

  20. Silicon Pixel Detectors for Synchrotron Applications

    CERN Document Server

    Stewart, Graeme Douglas

    Recent advances in particle accelerators have increased the demands being placed on detectors. Novel detector designs are being implemented in many different areas including, for example, high luminosity experiments at the LHC or at next generation synchrotrons. The purpose of this thesis was to characterise some of these novel detectors. The first of the new detector types is called a 3D detector. This design was first proposed by Parker, Kenney and Segal (1997). In this design, doped electrodes are created that extend through the silicon substrate. When compared to a traditional photodiode with electrodes on the opposing surfaces, the 3D design can combine a reasonable detector thickness with a small electrode spacing resulting in fast charge collection and limited charge sharing. The small electrode spacing leads to the detectors having lower depletion voltages. This, combined with the fast collection time, makes 3D detectors a candidate for radiation hard applications. These applications include the upgra...

  1. Real-time animation of synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Shintake, Tsumoru E-mail: shintake@spring8.or.jp

    2003-07-11

    New mathematical method has been developed to compute radiation field from a moving charge in free space. It is not based on the retarded potential or its derivation [R.Y. Tsien, Picture of dynamic electric fields, Am. J. Phys. 40, 1972]. It solves conformal mapping of electric field lines based on the following two facts: (1) once a wave is emitted from a particle, it propagates as a spherical wave. The wavelet (a part of the wave-front) runs with speed of the light, and does not change its direction, (2) the initial direction of the wavelet is determined by the Lorentz transformation between the electron-rest-frame to the laboratory frame, which gives the light aberration effect. 2D radiation simulator has been developed based on this method, which simulates synchrotron, undulator and dipole radiation in time domain [T. Shintake, Simulation of field lines generated by a moving charge, private note 1984 March 19 at KEK, not published].

  2. A guide to synchrotron radiation science

    CERN Document Server

    Sato, Shigeru; Munro, Ian; Lodha, G S

    2015-01-01

    Synchrotron Radiation (SR), as a light source is now in use around the world to provide brilliant radiation from the infrared into the soft and hard X-ray regions. It is an indispensible and essential tool to establish the physic-chemical characteristics of materials and surfaces from an atomic and molecular view point. It is being applied to topics which range from mineralogy to protein crystallography, embracing research in areas from the physical to the life sciences. This new guide is a concise yet comprehensive and easily readable introduction to an expanding area of science. It presents in a readily assimilable form the basic concepts of SR science from its generation principles, through source design and operation to the principles of instruments for SR exploitation followed by a survey of its actual applications in selected research fields, including spectroscopy, diffractometry, microanalysis and chemical processing.

  3. Breast tomography with synchrotron radiation

    Science.gov (United States)

    Pani, Silvia; Arfelli, Fulvia; Dreossi, Diego; Montanari, Francesco; Longo, Renata; Olivo, Alessandro; Poropat, Paolo; Zanconati, Fabrizio; Palma, Ludovico D.; Castelli, Edoardo

    2002-05-01

    A feasibility study of breast CT with synchrotron radiation is currently being carried on at Elettra, the Trieste synchrotron radiation facility. Breast CT cannot be implemented easily with conventional radiographic tubes, due to the high dose that would be delivered to the breast by a polychromatic X-ray spectrum. The possibility of tuning the beam energy, available at a synchrotron radiation beamline, allows a significant reduction in the delivered dose, and at the same time the use of monochromatic beams avoids beam hardening artifacts on the reconstructed image. Images of in vitro breast tissue samples have been acquired by means of a high efficiency linear array detector coupled to a VLSI single photon counting readout electronics. The pixel width, determining the pixel size of the reconstructed image, is 200 micrometers , while the pixel height, determining the CT slice thickness, is 300 micrometers . Tomograms have been reconstructed by means of standard filtered backprojection algorithms. Images of normal and pathologic breast tissue samples show a good visibility of glandular structure. The delivered dose was in all cases comparable to the one delivered in clinical planar mammography. Due to the promising results we obtained, in vivo studies are under evaluation.

  4. On the Discovery of Eastern Hellenistic Initiatory Altar of the 3rd – 1st Centuries BC Depicting the Plot of Bull Sacrifice in the City of Stavropol

    Directory of Open Access Journals (Sweden)

    Prokopenko Yuriy A.

    2016-10-01

    Full Text Available The article is devoted to the semantic and chronological analysis of the images on the plate of white tuff discovered in the city of Stavropol. The central part of the relief is occupied with the image of table – an altar with hoisted bull head (in the background and the hanging part of bull skin (in the foreground. Between the protruding edges of the hanging skin and lower to the ground (between the legs of the altar an ancient Greek phrase carved in three lines. The composition is completed by flanking images of two figures in long robes depicted in profile, symmetrically turned to the head of the bull. The figure at the right is an image of a man with a long beard, the lower edge of which is bent forward (priest or king. The figure at the left is a female (queen. Both the man and the woman are holding ritual vessels in hands. The plot of bull sacrifice is typical for the cultural traditions of ancient Greece as well as for ancient eastern states. The fact of combining images and inscriptions peculiar of the Hellenistic culture and ancient Iranian mythology on the Stavropol altar should be associated with the religious policy pursued by the Pontic kings since the second half of the 3rd century BC till the Common Era. This policy was focused on the gradual replacement of local cults by Greek ones in the official pantheon. The reasons for the Asia Minor altar existence in the Stavropol Upland include: 1 the military expeditions of the Sarmatians to Asia Minor in 2nd – 1st centuries BC; 2 the establishment of political and economic ties by the North Caucasus population with the state of Seleucids in the 2nd century BC, with Parthia in the 2nd – 1st centuries BC, and especially with the kingdom of Pontus in the 1st century BC.

  5. Stellar Occultations by Large TNOs on 2012: The February 3rd by (208996) 2003 AZ84, and the February 17th by (50000) Quaoar

    Science.gov (United States)

    Braga Ribas, Felipe; Sicardy, B.; Ortiz, J. L.; Duffard, R.; Camargo, J. I. B.; Lecacheux, J.; Colas, F.; Vachier, F.; Tanga, P.; Sposetti, S.; Brosch, N.; Kaspi, S.; Manulis, I.; Baug, T.; Chandrasekhar, T.; Ganesh, S.; Jain, J.; Mohan, V.; Sharma, A.; Garcia-Lozano, R.; Klotz, A.; Frappa, E.; Jehin, E.; Assafin, M.; Vieira Martins, R.; Behrend, R.; Roques, F.; Widemann, T.; Morales, N.; Thirouin, A.; Mahasena, P.; Benkhaldoun, Z.; Daassou, A.; Rinner, C.; Ofek, E. O.

    2012-10-01

    On February 2012, two stellar occultation's by large Trans-neptunian Objects (TNO's) were observed by our group. On the 3rd, an event by (208996) 2003 AZ84 was recorded from Mont Abu Observatory and IUCAA Girawali Observatory in India and from Weizmann Observatory in Israel. On the 17th, a stellar occultation by (50000) Quaoar was observed from south France and Switzerland. Both occultations are the second observed by our group for each object, and will be used to improve the results obtained on the previous events. The occultation by 2003 AZ84 is the first multi-chord event recorded for this object. From the single chord event on January 8th 2011, Braga-Ribas et al. 2011 obtained a lower limit of 573 +/- 21 km. From the 2012 occultation the longest chord has a size of 662 +/- 50 km. The other chords will permit to determine the size and shape of the TNO, and derive other physical parameters, such as the geometric albedo. The Quaoar occultation was observed from south of France (Observatoire de la Côte d'Azur, TAROT telescope and Valensole) and from Gnosca, Switzerland. Unfortunately, all three sites in France are almost at the same Quaoar's latitude, so in practice, we have two chords that can be used to fit Quaoar's limb. The resulting fit will be compared with the results obtained by Braga-Ribas et al. 2011. Braga-Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.

  6. Detection and spectral measurements of coherent synchrotron radiation at FLASH

    Energy Technology Data Exchange (ETDEWEB)

    Behrens, Christopher

    2010-02-15

    The operation of high-gain free-electron laser (FEL) underlies tremendous demands on high quality electron beams with high peak currents. At the Free-Electron-Laser in Hamburg (FLASH), two magnetic bunch compressors are used to compress the electron bunches longitudinally. In the bunch compressor magnets, these short electron bunches generate coherent synchrotron radiation (CSR). This CSR contains information on the longitudinal bunch profile, which is relevant for driving an FEL. In order to investigate coherent synchrotron radiation at the second bunch compressor BC3 at FLASH, a new setup behind the last dipole was installed. For the detection of coherent synchrotron radiation, which is emitted in the infrared regime, pyroelectric detectors were used. These pyroelectric detectors have been calibrated at the free-electron laser FELIX in the wavelength range from 5 {mu}m to 110 {mu}m. For characterisation of the emitted radiation, a transverse scanning device was used to measure the transverse intensity distribution. Various transmission filters were used to obtain additional information about the spectral content. In order to get spectral information with high resolution over a wide wavelength range, a rotating mirror spectrometer using reflective blazed gratings was installed. Using this spectrometer, the first spectral measurements of coherent synchrotron radiation at FLASH in a wavelength range from 10 {mu}m to 160 {mu}m were done. (orig.)

  7. Synchrotron Radiation in eRHIC Interaction Region

    CERN Document Server

    Beebe-Wang, Joanne; Montag, Christoph; Rondeau, Daniel J; Surrow, Bernd

    2005-01-01

    The eRHIC currently under study at BNL consists of an electron storage ring added to the existing RHIC complex. The interaction region of this facility has to provide the required low-beta focusing while accommodating the synchrotron radiation generated by beam separation close to the interaction point. In the current design, the synchrotron radiation caused by 10GeV electrons bent by low-beta triplet magnets will be guided through the interaction region and dumped 5m downstream. However, it is unavoidable to stop a fraction of the photons at the septum where the electron and ion vacuum system are separated. In order to protect the septum and minimize the backward scattering of the synchrotron radiation, an absorber and collimation system will be employed. In this paper, we first present the overview of the current design of the eRHIC interaction region with special emphasis on the synchrotron radiation. Then the initial design of the absorber and collimation system, including their geometrical and physical p...

  8. Control of synchrotron radiation effects during recirculation with bunch compression

    Energy Technology Data Exchange (ETDEWEB)

    Douglas, David [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Benson, Stephen [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Li, Rui [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Roblin, Yves [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Tennant, Christopher [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Krafft, Geoffrey [Old Dominion Univ., Norfolk, VA (United States); Terzic, Balsa [Old Dominion Univ., Norfolk, VA (United States); Tsai, Cheng [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

    2015-05-01

    Studies of beam quality during recirculation have been extended to an arc providing bunch compression with positive momentum compaction. It controls both incoherent and coherent synchrotron radiation (ISR and CSR) using methods including optics balance and generates little microbunching gain. We detail the dynamical basis for the design, discuss the design process, give an example, and provide simulations of ISR and CSR effects. Reference will be made to a complete analysis of microbunching effects.

  9. ICOM2012: 3rd International Conference on the Physics of Optical Materials and Devices (Belgrade, Serbia, 2-6 September 2012)

    Science.gov (United States)

    Dramićanin, Miroslav D.; Antić, Željka; Viana, Bruno

    2013-11-01

    The 3rd International Conference on the Physics of Optical Materials and Devices (ICOM2012) was held in Belgrade (Serbia) from 2 to 6 September 2012 (figure 1). The conference was organized by the Vinča Institute of Nuclear Sciences, University of Belgrade (Serbia) and the Laboratoire de Chimie de la Matière Condensée de Paris (France), and supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia and Optical Society of America. ICOM2012 was a follow-up to the two previous, successful ICOM conferences held in Herceg Novi in 2006 and 2009. The conference aimed at providing a forum for scientists in optical materials to debate on: • Luminescent materials and nanomaterials • Hybrid optical materials (organic/inorganic) • Characterization techniques of optical materials • Luminescence mechanisms and energy transfers • Theory and modeling of optical processes • Ultrafast-laser processing of materials • Optical sensors • Medical imaging • Advanced optical materials in photovoltaics and biophotonics • Photothermal and photoacoustic spectroscopy and phenomena The conference stressed the value of a fundamental scientific understanding of optical materials. A particular accent was put on wide band-gap materials in crystalline, glass and nanocrystalline forms. The applications mainly involved lasers, scintillators and phosphors. Rare earth and transition metal ions introduced as dopants in various hosts were considered, and their impact on the optical properties were detailed in several presentations. This volume contains selected contributions of speakers and participants of the ICOM2012 conference. The conference provided a unique opportunity for about 200 scientists from 32 countries to discuss recent progress in the field of optical materials. During the three and half days, 21 invited talks and 52 contributed lectures were given, with a special event in memory of our dear colleague Professor Dr Tsoltan

  10. Reservoir diagenesis of 3rd member of Feixianguan Formation, Jiannan Gas Field%建南气田飞三段储层成岩作用研究

    Institute of Scientific and Technical Information of China (English)

    鲍云杰; 王恕一; 蒋小琼; 管宏林; 杨振恒

    2011-01-01

    以建43井为例,研究了建南气田三叠系飞三段储层的成岩作用及特点,其中白云岩化作用、溶蚀作用和构造破裂作用对储层贡献较大.其成岩序列为藻粘结、泥晶化→一世代胶结→大气淡水溶蚀→二世代粒状胶结→新生变形→压实压溶→白云岩化→早期张裂缝及充填→构造挤压作用→埋藏溶蚀Ⅰ→进油→白云石、萤石充填、石英充填交代→油演化为沥青→埋藏溶蚀Ⅱ→晚期张裂缝→进气;主要经历了海底(潮间)环境、大气淡水环境、浅埋藏和深埋藏环境.白云石晶体、二世代粒状胶结物、萤石被溶蚀、压性裂缝发育以及孔隙无明显变形是埋藏溶蚀的主要识别标志.%Diagenesis and features of the 3rd member of Feixianguan Formation in the Jiannan Gas Field were studied taking well Jian43 as an example. Dolomitization, karstification and tectonic disruption were contributive to reservoir. Diagenesis sequence was illustrated as follows: algae agglutinate and micritization-"first consolidation-*" atmospheric water erosion-*-secondary granular consolidation-" neo-morphism-" compaction and pressolution-" dolomitization-?■ early tension fissure and filling-"tectonic compression-" buried erosion I -"petroleum entering-"dolomite and fluorite filling as well as quartz filling and metasomatisnr~"oil evolving to bitumen-"buried erosion E~"late tension fissure-"gas entering. There were 4 kinds of diagenesis environment including seabed (intertidal), atmospheric water, shallow bury and deep bury. Dolomite crystals, secondary granular consolidations, eroded fluorites, tensional fissures and pores without obvious deformation were the main identifications for buried erosions.

  11. Web services in third-generation service platforms

    NARCIS (Netherlands)

    Lagerberg, Ko; Plas, Dirk-Jaap; Wegdam, Maarten

    2002-01-01

    In third-generation (3G) networks, third-party service developers will have access to the mobile network resources using open network interfaces, such as the 3rd Generation Partnership Project's (3GPP's) Open Service Access (OSA). The service platforms that offer these interfaces provide interoperab

  12. Generations.

    Science.gov (United States)

    Chambers, David W

    2005-01-01

    Groups naturally promote their strengths and prefer values and rules that give them an identity and an advantage. This shows up as generational tensions across cohorts who share common experiences, including common elders. Dramatic cultural events in America since 1925 can help create an understanding of the differing value structures of the Silents, the Boomers, Gen Xers, and the Millennials. Differences in how these generations see motivation and values, fundamental reality, relations with others, and work are presented, as are some applications of these differences to the dental profession.

  13. Third-generation muffin–tin orbitals

    Indian Academy of Sciences (India)

    O K Andersen; T Saha-Dasgupta; S Ezhov

    2003-01-01

    By the example of $sp^3$-bonded semiconductors, we illustrate what 3rd-generation muffin–tin orbitals (MTOs) are. We demonstrate that they can be downfolded to smaller and smaller basis sets: $sp^3d^{10}, sp^3$, and bond orbitals. For isolated bands, it is possible to generate Wannier functions a priori. Also for bands, which overlap other bands, Wannier-like MTOs can be generated a priori. Hence, MTOs have a unique capability for providing chemical understanding.

  14. Synchrotron-driven spallation sources

    CERN Document Server

    Bryant, P J

    1996-01-01

    The use of synchrotrons for pulsed neutron spallation sources is an example of scientific and technological spin-off from the accelerator development for particle physics. Accelerator-driven sources provide an alternative to the continuous-flux, nuclear reactors that currently furnish the majority of neutrons for research and development. Although the present demand for neutrons can be adequately met by the existing reactors, this situation is unlikely to continue due to the increasing severity of safety regulations and the declared policies of many countries to close down their reactors within the next decade or so. Since the demand for neutrons as a research tool is, in any case,expected to grow, there has been a corresponding interest in sources that are synchrotron-driven or linac-driven with a pulse compression ring and currently several design studies are being made. These accelerator-driven sources also have the advantage of a time structure with a high peak neutron flux. The basic requirement is for a...

  15. Sirepo for Synchrotron Radiation Workshop

    Energy Technology Data Exchange (ETDEWEB)

    2016-10-25

    Sirepo is an open source framework for cloud computing. The graphical user interface (GUI) for Sirepo, also known as the client, executes in any HTML5 compliant web browser on any computing platform, including tablets. The client is built in JavaScript, making use of the following open source libraries: Bootstrap, which is fundamental for cross-platform web applications; AngularJS, which provides a model–view–controller (MVC) architecture and GUI components; and D3.js, which provides interactive plots and data-driven transformations. The Sirepo server is built on the following Python technologies: Flask, which is a lightweight framework for web development; Jinja, which is a secure and widely used templating language; and Werkzeug, a utility library that is compliant with the WSGI standard. We use Nginx as the HTTP server and proxy, which provides a scalable event-driven architecture. The physics codes supported by Sirepo execute inside a Docker container. One of the codes supported by Sirepo is the Synchrotron Radiation Workshop (SRW). SRW computes synchrotron radiation from relativistic electrons in arbitrary magnetic fields and propagates the radiation wavefronts through optical beamlines. SRW is open source and is primarily supported by Dr. Oleg Chubar of NSLS-II at Brookhaven National Laboratory.

  16. Funding problems threaten Middle East's synchrotron

    CERN Multimedia

    McCabe, H

    1999-01-01

    Scientists will tour the Middle East to try to raise support for the Synchrotron radiation for Experimental Science and Applications in the Middle East project. The plan is to dismantle and move a decommissioned synchrotron from Berlin to the Middle East where scientists of any nationality would be able to use it (3 paragraphs).

  17. Synchrotron radiation absorber for high density loads

    Science.gov (United States)

    Anashin, V. V.; Kuzminych, V. S.; Trakhtenberg, E. M.; Zholents, A. A.

    1991-10-01

    A design of a special synchrotron radiation absorber for the storage ring VEPP-4M is presented. The density of the synchrotron radiation power on the absorber surface is up to 500 W/mm 2. The absorber is made from a beryllium plate, brazed inside to the copper vacuum chamber, which is intensively water-cooled from outside.

  18. High-Intensity Synchrotron Radiation Effects

    CERN Document Server

    Suetsugu, Y

    2016-01-01

    Various effects of intense synchrotron radiation on the performance of particle accelerators, especially for storage rings, are discussed. Following a brief introduction to synchrotron radiation, the basic concepts of heat load, gas load, electron emission, and the countermeasures against these effects are discussed.

  19. Stages of Geoinformation Evolution Related to the Territories Described in the Bible - from the 3Rd Millennium B.C. to Modern Times

    Science.gov (United States)

    Linsenbarth, Adam

    2012-09-01

    The paper presents consecutive stages of the evolution of geoinformation related to the territories of the events described in the Bible. Two geoinformation sources are presented: the Bible and non-Bible sources. In the Bible there is much, often some highly detailed information regarding terrain topography. The oldest non-Bible sources are incorporated in the ancient documents, which were discovered in Egypt and Mesopotamia. Some of them are related to the 3rd millen- nium B.C. The further stages are related to the onomasticons and itineraries written by travellers and pilgrims to the Holy Land. The most famous onomasticons include: onomasticons prepared by bishop Eusebius from Caesarea and those pre- pared by St. Jerome. One of the oldest maps of Palestine's territory is the so-called mosaic map of Madaba dated to 565. In the 15th century several Bible maps were edited. The most rapid evolution occurred in the 16th and 17* centuries, when the world famous cartographers such as Mercator and Ortelius edited several maps of Palestine's territory. Cartographers from several European countries edited more than 6,000 maps presenting the Biblical territories and Biblical events. Modem maps, based on detailed topographical surveys, were edited m the second half of the 19* and 20th centuries. W artykule przedstawiono kolejne etapy rozwoju geoinformacji dotyczącej terenówr biblijnych. Omówiono dwa źródła informacji, a mianowicie geoinformacje biblijne i pozabiblijne. W tekstach biblijnych można znaleźć wiele, często bardzo detalicznych informacji topograficznych. Najstarsze źródła pozabiblijne, to starożytne dokumenty odnalezione na terenach Egiptu i Mezopotamii. Niektóre z nich pochodzą z trzeciego milenium przed Chr. Kolejnym etapem geoinformacji były onomastikony oraz dzienniki podróży pisane przez podróżników i pielgrzymów do Ziemi Świętej. Do najbardziej znanych należy onomastikon sporządzony przez biskupa Euzebiusza z Cezarei oraz

  20. Joint conference of iMEC 2015 (2nd International Manufacturing Engineering Conference & APCOMS 2015 (3rd Asia-Pacific Conference on Manufacturing Systems)

    Science.gov (United States)

    2016-02-01

    The iMEC 2015 is the second International Manufacturing Engineering Conference organized by the Faculty of Manufacturing, Universiti Malaysia Pahang (UMP), held from 12-14th November 2015 in Kuala Lumpur, Malaysia, with a theme "Materials, Manufacturing and Systems for Tomorrow". For the first time, iMEC is organized together with 3rd Asia- Pacific Conference on Manufacturing System (APCOMS 2015) which owned by Fakulti Teknologi Industri, Institut Teknologi Bandung (ITB), Indonesia. This is an extended collaboration between UMP and ITB to intensify knowledge sharing and experiences between higher learning institutions. This conference (iMEC & APCOMS 2015) is a platform for knowledge exchange and the growth of ideas, particularly in manufacturing engineering. The conference aims to bring researchers, academics, scientists, students, engineers and practitioners from around the world together to present their latest findings, ideas, developments and applications related to manufacturing engineering and other related research areas. With rapid advancements in manufacturing engineering, iMEC is an appropriate medium for the associated community to keep pace with the changes. In 2015, the conference theme is “Materials, Manufacturing and Systems for Tomorrow” which reflects the acceleration of knowledge and technology in global manufacturing. The papers in these proceedings are examples of the work presented at the conference. They represent the tip of the iceberg, as the conference attracted over 200 abstracts from Malaysia, Indonesia, Japan, United Kingdom, Australia, India, Bangladesh, South Africa, Turkey and Morocco and 151 full papers were accepted in these proceedings. The conference was run in four parallel sessions with 160 presenters sharing their latest finding in the areas of manufacturing process, systems, advanced materials and automation. The first keynote presentation was given by Prof. B. S. Murthy (IIT, Madras) on "Nanomaterials with Exceptional

  1. Study on Atomic Fluorescence Spectrometry Excited by Synchrotron Radiation

    Institute of Scientific and Technical Information of China (English)

    Jia-jia Guo; Wu-er Gan; Guo-bin Zhang; Qing-de Su

    2008-01-01

    A novel analysis approach using atomic fluorescence excited by synchrotron radiation is presented. A system for synchrotron radiation-atomic fluorescence spectrometry is developed, and experimental conditions such as flow rate, analyte acidity, concentration of pre-reducing and hydrogenation system are optimized. The proposed method is successfully applied to get an excitation spectrum of arsenic. Seven of ten primary spectral lines, four of which have never been reported by means of atomic fluorescence spectrometry, agree well with the existing reports. The other three are proposed for the first time. Excitation potentials and possible transitions are investigated. Especially for the prominent line at 234.99 nm, the mechanism of generation is discussed and a model of energy transition processes is proposed.

  2. Incoherent synchrotron emission of laser-driven plasma edge

    CERN Document Server

    Serebryakov, D A; Kostyukov, I Yu

    2015-01-01

    When a relativistically intense linearly polarized laser pulse is incident on an overdense plasma, a dense electron layer is formed on the plasma edge which relativistic motion results in high harmonic generation, ion acceleration and incoherent synchrotron emission of gamma-photons. Here we present a self-consistent analytical model that describes the edge motion and apply it to the problem of incoherent synchrotron emission by ultrarelativistic plasma electrons. The model takes into account both coherent radiation reaction from high harmonics and incoherent radiation reaction in the Landau-Lifshitz form. The analytical results are in agreement with 3D particle-in-cell simulations in a certain parameter region that corresponds to the relativistic electronic spring interaction regime.

  3. Experience with interactive control software at the CERN proton synchrotron

    CERN Document Server

    Carpenter, B E

    1973-01-01

    The computer system includes, in addition to the central computer, a Varian 620 used for real-time function generation and two Imlac PDS1 display mini-computers used as operator consoles. The configuration is being expanded to include 3 PDP-11/45's and links with various other online computers associated with the synchrotron, and the present survey of interactive control software in use with the old configuration was carried out as part of the planning of this expansion. This paper describes the various means of computer access available to the synchrotron operators and development engineers, and outlines the associated software. One of the more flexible pieces of software, an on-line syntax handler, is discussed in more detail. (3 refs).

  4. Incoherent synchrotron emission of laser-driven plasma edge

    Energy Technology Data Exchange (ETDEWEB)

    Serebryakov, D. A., E-mail: dmserebr@gmail.com; Nerush, E. N.; Kostyukov, I. Yu. [Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov St., Nizhny Novgorod 603950 (Russian Federation); Nizhny Novgorod State University, 23 Gagarin Avenue, Nizhny Novgorod 603950 (Russian Federation)

    2015-12-15

    When a relativistically intense linearly polarized laser pulse is incident on an overdense plasma, a dense electron layer is formed on the plasma edge which relativistic motion results in high harmonic generation, ion acceleration, and incoherent synchrotron emission of gamma-photons. Here we present a self-consistent analytical model that describes the edge motion and apply it to the problem of incoherent synchrotron emission by ultrarelativistic plasma electrons. The model takes into account both coherent radiation reaction from high harmonics and incoherent radiation reaction in the Landau–Lifshitz form. The analytical results are in agreement with 3D particle-in-cell simulations in a certain parameter region that corresponds to the relativistic electronic spring interaction regime.

  5. Incoherent synchrotron emission of laser-driven plasma edge

    Science.gov (United States)

    Serebryakov, D. A.; Nerush, E. N.; Kostyukov, I. Yu.

    2015-12-01

    When a relativistically intense linearly polarized laser pulse is incident on an overdense plasma, a dense electron layer is formed on the plasma edge which relativistic motion results in high harmonic generation, ion acceleration, and incoherent synchrotron emission of gamma-photons. Here we present a self-consistent analytical model that describes the edge motion and apply it to the problem of incoherent synchrotron emission by ultrarelativistic plasma electrons. The model takes into account both coherent radiation reaction from high harmonics and incoherent radiation reaction in the Landau-Lifshitz form. The analytical results are in agreement with 3D particle-in-cell simulations in a certain parameter region that corresponds to the relativistic electronic spring interaction regime.

  6. Clusters and Large-Scale Structure: the Synchrotron Keys

    CERN Document Server

    Rudnick, L; Andernach, H; Battaglia, N; Brown, S; Brunetti, Gf; Burns, J; Clarke, T; Dolag, K; Farnsworth, D; Giovannini, G; Hallman, E; Johnston-Hollit, M; Jones, T W; Kang, H; Kassim, N; Kravtsov, A; Lazio, J; Lonsdale, C; McNamara, B; Myers, S; Owen, F; Pfrommer, C; Ryu, D; Sarazin, C; Subrahmanyan, R; Taylor, G; Taylor, R

    2009-01-01

    For over four decades, synchrotron-radiating sources have played a series of pathfinding roles in the study of galaxy clusters and large scale structure. Such sources are uniquely sensitive to the turbulence and shock structures of large-scale environments, and their cosmic rays and magnetic fields often play important dynamic and thermodynamic roles. They provide essential complements to studies at other wavebands. Over the next decade, they will fill essential gaps in both cluster astrophysics and the cosmological growth of structure in the universe, especially where the signatures of shocks and turbulence, or even the underlying thermal plasma itself, are otherwise undetectable. Simultaneously, synchrotron studies offer a unique tool for exploring the fundamental question of the origins of cosmic magnetic fields. This work will be based on the new generation of m/cm-wave radio telescopes now in construction, as well as major advances in the sophistication of 3-D MHD simulations.

  7. Carbyne formation by synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Kaito, C.; Kimura, Y.; Hanamoto, K.; Sasaki, M.; Kimura, S.; Nakada, T.; Saito, Y.; Koike, C.; Nakayama, Y. E-mail: nakayamy@se.ritsumei.ac.jp

    2001-07-21

    Thin carbon films prepared by vacuum evaporation using the arc method were mounted on a standard electron microscope copper grid. They were irradiated by white synchrotron radiation (SR) beam by the use of cylindrical and toroidal mirrors. The irradiated film was examined using a high-resolution electron microscope. {alpha} and {alpha}+{beta} mixture carbyne crystals were grown in round and the elongated shapes. The round crystals were composed of 5-10 nm crystallites of a carbyne form. The elongated crystal grew into a single crystal 100 nm in size. The c-axes of both grown crystals were oblique to the film. The growth of the carbynes was discussed as being the result of nucleation due to graphite microcrystallites formed by SR beam irradiation.

  8. Beam dumps design and local radiation protection at TERA synchrotron.

    Science.gov (United States)

    Porta, A; Campi, F; Agosteo, S

    2005-01-01

    The realisation of the National Center of Hadrontherapy was funded by the Italian Government in 2002. The Centre will be built in the area of Pavia (Italy). The synchrotron designed in the framework of this programme will accelerate protons and carbon ions up to 250 MeV and 400 MeV u(-1), respectively. Some of the main aspects which were taken into account in the design of the acceleration system are the patient's safety and the beam control. From this point of view an important role is played by the beam dumps in the synchrotron ring and upstream of the extraction system. In particular, an horizontal and a vertical beam dump will be installed in the synchrotron ring: the former will be used for lowering the beam intensity and the latter for beam abortion. The dump at the extraction will absorb the particles during the mounting and the falling ramps of the synchrotron magnetic cycle, thus extracting only the flat top of the ion spill. Beam dumps can produce intense fields of secondary radiation (neutrons, charged light-hadrons and photons) and high rates of induced activity, since they can absorb the beam completely. Usually they have to be shielded to protect the electronics during machine operation and to attenuate the radiation dose below the limits imposed by the law when the personnel access to the synchrotron hall. The part of the shielding design of the beam dumps concerning with the acceleration of protons was made using Monte Carlo simulations with the FLUKA code. Both induced activity and secondary radiation were taken into account. The shields against secondary radiation produced by carbon ions were designed, referring only to secondary neutrons, taking double-differential distributions from the literature as sources for the FLUKA simulations. The induced activity from carbon ions interactions was estimated analytically, using the data generated by the EPAX 2 code. The dose-equivalent rates from the induced radionuclides were calculated at 1 m from the

  9. Report of the Synchrotron Radiation Vacuum Workshop

    Energy Technology Data Exchange (ETDEWEB)

    Avery, R.T.

    1984-06-01

    The Synchrotron Radiation Vacuum Workshop was held to consider two vacuum-related problems that bear on the design of storage rings and beam lines for synchrotron radiation facilities. These problems are gas desorption from the vacuum chamber walls and carbon deposition on optical components. Participants surveyed existing knowledge on these topics and recommended studies that should be performed as soon as possible to provide more definitive experimental data on these topics. This data will permit optimization of the final design of the Advanced Light Source (ALS) and its associated beam lines. It also should prove useful for other synchrotron radiation facilities as well.

  10. Selected Abstracts of the 3rd Edition of Transport of High Risk Infants; Oxford (UK; August 31st-September 2nd, 2017

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2017-08-01

    Full Text Available Selected Abstracts of the 3rd Edition of Transport of High Risk Infants; Oxford (UK; August 31st-September 2nd, 2017ABS 1. MORTALITY RATE IN 23-30 WEEKS PRE­MATURE BORN IN LEVEL 2 HOSPITAL IN COMPARISON TO THOSE BORN IN TERTIARY-CARE HOSPITAL • J.P. Doray, J.L. DorayABS 2. THE QUEBEC AEROMEDICAL EXPERIENCE: EVACUATION OF NEONATES FROM AREAS IN EXTREME WEATHER CONDITIONS – IN­NOVATIONS IN SAFETY AND EFFICIENCY • É. Notebaert, J. Provencher, R. Bernier, S. Côté, S. KindABS 3. NASAL HIGH FLOW SUPPORT DURING NEONATAL RETRIEVAL IN VICTORIA, AUSTRALIA • V. Abraham, C. Roberts, B. Manley, L. Owen, M. Stewart, P. DavisABS 4. NEONATAL TRANSPORT TO AND FROM A REGIONAL LEVEL 2 CENTRE • C. Moore, M. Cassidy, M. Byrne, A. Bowden, J. Franta, I. Farombi, J. FitzsimonsABS 5. PASSIVE THERAPEUTIC HYPOTHERMIA DURING AMBULANCE AND HELICOPTER SECONDARY NEONATAL TRANSPORT IN NEONATES WITH HYPOXIC BRAIN INJURY: 10-YEARS RETROSPECTIVE SURVEY • M. Leben, M. Nolimal, I. Vidmar, S. GrosekABS 6. STABILIZATION OF CRITICALLY ILL NEW­BORNS: PREVENTION OF ACUTE KIDNEY INJURY • A. Babintseva, Y. Hodovanets, L. AgafonovaABS 7. TRANSPORT OF THE SURGICAL NEONATES • R. Pejaver, A. Poveidein, D. Winterbank-Scott, C. Keys, N. GuptaABS 8. AUDIT OF VENTILATED NEONATAL TRANS­FERS IN NORTHERN IRELAND FROM 1ST JANUARY 2017 UNTIL 1ST MAY 2017 • R. Moore, S. KnoxABS 9. “HUB AND SPOKE” ECMO IN NEONATES WITH MECONIUM ASPIRATION SYNDROME: A PRELIMINARY REPORT • N. Doglioni, D. Fichera, F. Zanella, M. Padalino, V. Vida, G. Stellin, P. Lago, D. TrevisanutoABS 10. INTRA-HOSPITAL TRANSPORTATION OF EX­TREMELY PRETERM INFANTS AND INCI­DENCE OF INTRAVENTRICULAR HAEMOR­RHAGES • N. Wadström, M. Breindahl, B. Hallberg, B. SkiöldABS 11. RISK OF POSTNATAL TRANSPORT AND OUT­COME OF LATE PRETERM INFANTS BORN AT NON-TERTIARY CENTRES: A RETRO­SPEC­TIVE COHORT STUDY • N. Doglioni, L. Salmaso, P. Facchin, D. TrevisanutoABS 12. COMPARING THREE METHODS OF THERA

  11. Characterization of Medipix3 With Synchrotron Radiation

    CERN Document Server

    Gimenez, E N; Marchal, J; Turecek, D; Ballabriga, R; Tartoni, N; Campbell, M; Llopart, X; Sawhney, K J S

    2011-01-01

    Medipix3 is the latest generation of photon counting readout chips of the Medipix family. With the same dimensions as Medipix2 (256 x 256 pixels of 55 mu m x 55 mu m pitch each), Medipix3 is however implemented in an 8-layer metallization 0.13 mu m CMOS technology which leads to an increase in the functionality associated with each pixel over Medipix2. One of the new operational modes implemented in the front-end architecture is the Charge Summing Mode (CSM). This mode consists of a charge reconstruction and hit allocation algorithm which eliminates event-by-event the low energy counts produced by charge-shared events between adjacent pixels. The present work focuses on the study of the CSM mode and compares it to the Single Pixel Mode (SPM) which is the conventional readout method for these kind of detectors and it is also implemented in Medipix3. Tests of a Medipix3 chip bump-bonded to a 300 mu m thick silicon photodiode sensor were performed at the Diamond Light Source synchrotron to evaluate the performan...

  12. Simple modification of Compton polarimeter to redirect synchrotron radiation

    Directory of Open Access Journals (Sweden)

    J. Benesch

    2015-11-01

    Full Text Available Synchrotron radiation produced as an electron beam passes through a bending magnet is a significant source of background in many experiments. Using modeling, we show that simple modifications of the magnet geometry can reduce this background by orders of magnitude in some circumstances. Specifically, we examine possible modifications of the four dipole magnets used in Jefferson Lab’s Hall A Compton polarimeter chicane. This Compton polarimeter has been a crucial part of experiments with polarized beams and the next generation of experiments will utilize increased beam energies, up to 11 GeV, requiring a corresponding increase in Compton dipole field to 1.5 T. In consequence, the synchrotron radiation (SR from the dipole chicane will be greatly increased. Three possible modifications of the chicane dipoles are studied; each design moves about 2% of the integrated bending field to provide a gentle bend in critical regions along the beam trajectory which, in turn, greatly reduces the synchrotron radiation within the acceptance of the Compton polarimeter photon detector. Each of the modifications studied also softens the SR energy spectrum at the detector sufficiently to allow shielding with 5 mm of lead. Simulations show that these designs are each capable of reducing the background signal due to SR by three orders of magnitude. The three designs considered vary in their need for vacuum vessel changes and in their effectiveness.

  13. Synchrotron UV-visible multispectral luminescence microimaging of historical samples.

    Science.gov (United States)

    Thoury, Mathieu; Echard, Jean-Philippe; Réfrégiers, Matthieu; Berrie, Barbara; Nevin, Austin; Jamme, Frédéric; Bertrand, Loïc

    2011-03-01

    UV-visible luminescence techniques are fre-quently used for the study of cultural heritage materials, despite their limitations for identification and discrimination in the case of complex heterogeneous materials. In contrast to tabletop setups, two methods based on the vacuum ultraviolet (VUV)-UV-visible emission generated at a bending magnet of a synchrotron source are described. The main advantages of the source are the extended wavelength range attained, the continuous tunability of the source, and its brightness, leading to a submicrometer lateral resolution. Raster-scanning microspectroscopy and full-field microimaging were implemented and tested at the DISCO beamline (synchrotron SOLEIL, France). Investigative measurements were performed on a sample from a varnished musical instrument and a paint sample containing the pigment zinc white (ZnO) in order to illustrate some of the challenges analyzing heterogeneous cultural heritage cross-section samples with the novel imaging approach. The data sets obtained proved useful for mapping organic materials at the submicrometer scale and visualizing heterogeneities of the semiconductor pigment material. We propose and discuss the combined use of raster-scanning microspectroscopy and full-field microimaging in an integrated analytical methodology. Synchrotron UV luminescence appears as a novel tool for identification of craftsmen's and artists' materials and techniques and to assess the condition of artifacts, from the precise identification and localization of luminescent materials.

  14. CCD sensors in synchrotron X-ray detectors

    Science.gov (United States)

    Strauss, M. G.; Naday, I.; Sherman, I. S.; Kraimer, M. R.; Westbrook, E. M.; Zaluzec, N. J.

    1988-04-01

    The intense photon flux from advanced synchrotron light sources, such as the 7-GeV synchrotron being designed at Argonne, require integrating-type detectors. Charge-coupled devices (CCDs) are well suited as synchrotron X-ray detectors. When irradiated indirectly via a phosphor followed by reducing optics, diffraction patterns of 100 cm 2 can be imaged on a 2 cm 2 CCD. With a conversion efficiency of ˜ 1 CCD electron/X-ray photon, a peak saturation capacity of > 10 6 X-rays can be obtained. A programmable CCD controller operating at a clock frequency of 20 MHz has been developed. The readout rate is 5 × 10 6 pixels/s and the shift rate in the parallel registers is 10 6 lines/s. The test detector was evaluated in two experiments. In protein crystallography diffraction patterns have been obtained from a lysozyme crystal using a conventional rotating anode X-ray generator. Based on these results we expect to obtain at a synchrotron diffraction images at a rate of ˜ 1 frame/s or a complete 3-dimensional data set from a single crystal in ˜ 2 min. In electron energy-loss spectroscopy (EELS), the CCD was used in a parallel detection mode which is similar to the mode array detectors are used in dispersive EXAFS. With a beam current corresponding to 3 × 10 9 electron/s on the detector, a series of 64 spectra were recorded on the CCD in a continuous sequence without interruption due to readout. The frame-to-frame pixel signal fluctuations had σ = 0.4% from which DQE = 0.4 was obtained, where the detector conversion efficiency was 2.6 CCD electrons/X-ray photon. These multiple frame series also showed the time-resolved modulation of the electron microscope optics by stray magnetic fields.

  15. Molecular photoemission studies using synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Truesdale, C.M.

    1983-04-01

    The angular distributions of photoelectrons and Auger electrons were measured by electron spectroscopy using synchrotron radiation. The experimental results are compared with theoretical calculations to interpret the electronic behavior of photoionization for molecular systems.

  16. Stanford Synchrotron Radiation Light Source (SSRL)

    Data.gov (United States)

    Federal Laboratory Consortium — The SSRL at SLAC National Accelerator Laboratory was built in 1974 to take and use for synchrotron studies the intense x-ray beams from the SPEAR storage ring that...

  17. Solenoid and Synchrotron radiation effects in CLIC

    CERN Document Server

    Dalena, B; Tomás, R; Angal-Kalinin, D

    2010-01-01

    The emission of Synchrotron Radiation in the CLIC BDS is one of the major limitations of the machine performance. An extensive revision of this phenomenon is presented with special emphasis on the Interaction point (IP) solenoid.

  18. National Synchrotron Light Source annual report 1988

    Energy Technology Data Exchange (ETDEWEB)

    Hulbert, S.; Lazarz, N.; Williams, G. (eds.)

    1988-01-01

    This report discusses the experiment done at the National Synchrotron Light Source. Most experiments discussed involves the use of the x-ray beams to study physical properties of solid materials. (LSP)

  19. Fiber structural analysis by synchrotron radiation

    CERN Document Server

    Kojima, J I; Kikutani, T

    2003-01-01

    Topics of fiber structural analysis by synchrotron radiation are explained. There are only three synchrotron radiation facilities in the world, SPring-8 (Super Photon ring-8) in Japan, APS (Advanced Photon Source) in U.S.A. and ESRF (European Synchrotron Radiation Facility) in France. Online measurement of melt spinning process of PET and Nylon6 is explained in detail. Polypropylene and PBO (poly-p-phenylenebenzobisoxazole) was measured by WAXD (Wide Angle X-ray Diffraction)/SAXS (Small Angle X-ray Scattering) at the same time. Some examples of measure of drawing process of fiber are described. The structure formation process of spider's thread was measured. Micro beam of X-ray of synchrotron facility was improved and it attained to 65nm small angle resolving power by 10 mu m beamsize. (S.Y.)

  20. Simulation of synchrotron motion with rf noise

    Energy Technology Data Exchange (ETDEWEB)

    Leemann, B.T.; Forest, E.; Chattopadhyay, S.

    1986-08-01

    The theoretical formulation is described that is behind an algorithm for synchrotron phase-space tracking with rf noise and some preliminary simulation results of bunch diffusion under rf noise obtained by actual tracking.

  1. Precision Calibration of Infrared Synchrotron Radiation Detectors

    CERN Document Server

    Maltsev, A A; Maslova, M V

    2003-01-01

    The technique of calibration of synchrotron radiation precision detectors on a tungsten source based on similarity (close similarity) of character of spectral distributions of synchrotron and thermal radiations is given. The characteristics of various commonly used lamps, used as "standard" ones, are given. The errors of measurements are analyzed. The detectors are intended for absolute measurements of the number of electrons in a ring-shaped bunch.

  2. Modulation of synchrotron radiation by acoustic oscillations

    CERN Document Server

    Mkrtchyan, A R; Kocharyan, L A; Mirzoyan, V K

    1986-01-01

    By means of a quartz single crystal excited by piezoelectric oscillations, the modulation of synchrotron radiation reflected from the quartz planes (1011) is realized for frequencies ranging from 1 Hz to 15 kHz when the Bragg condition is satisfied. The wavelength of synchrotron radiation ranged from 0.3 to 12A. The patterns of modulated beams taken from oscillograph and analyzer screens are shown.

  3. Wakefields in Coherent Synchrotron Radiation

    Science.gov (United States)

    Billinghurst, Brant E.; Bergstrom, J. C.; Baribeau, C.; Batten, T.; Dallin, L.; May, Tim E.; Vogt, J. M.; Wurtz, Ward A.; Warnock, Robert L.; Bizzozero, D. A.; Kramer, S.; Michaelian, K. H.

    2016-06-01

    When the electron bunches in a storage ring are sufficiently short the electrons act coherently producing radiation several orders of magnitude more intense than normal synchrotron radiation. This is referred to as Coherent Syncrotron Radiation (CSR). Due to the potential of CSR to provide a good source of Terahertz radiation for our users, the Canadian Light Source (CLS) has been researching the production and application of CSR. CSR has been produced at the CLS for many years, and has been used for a number of applications. However, resonances that permeate the spectrum at wavenumber intervals of 0.074 cm-1, and are highly stable under changes in the machine setup, have hampered some experiments. Analogous resonances were predicted long ago in an idealized theory. Through experiments and further calculations we elucidate the resonance and wakefield mechanisms in the CLS vacuum chamber. The wakefield is observed directly in the 30-110 GHz range by rf diodes. These results are consistent with observations made by the interferometer in the THz range. Also discussed will be some practical examples of the application of CSR for the study of condensed phase samples using both transmission and Photoacoustic techniques.

  4. Synchrotron radiation from massless charge

    CERN Document Server

    Gal'tsov, D V

    2015-01-01

    Classical radiation power from an accelerated massive charge diverges in the zero-mass limit, while some general arguments suggest that strictly massless charge does not not radiate at all. On the other hand, the regularized classical radiation reaction force, though looking odd, is non-zero and finite. To clarify this controversy, we consider radiation problem in massless scalar quantum electrodynamics in the external magnetic field. In this framework, synchrotron radiation is found to be non-zero, finite, and essentially quantum. Its spectral distribution is calculated using Schwinger's proper time technique for {\\em ab initio} massless particle of zero spin. Provided $E^2\\gg eH$, the maximum in the spectrum is shown to be at $\\hbar \\omega=E/3$, and the average photon energy is $4E/9$. The normalized spectrum is universal, depending neither on $E$ nor on $H$. Quantum nature of radiation makes classical radiation reaction equation meaningless for massless charge. Our results are consistent with the view (sup...

  5. Synchrotron radiation from massless charge

    Directory of Open Access Journals (Sweden)

    D.V. Gal'tsov

    2015-07-01

    Full Text Available Classical radiation power from an accelerated massive charge diverges in the zero-mass limit, while some authors suggest that strictly massless charge does not radiate at all. On the other hand, the regularized classical radiation reaction force, though looking odd, is non-zero and finite. To clarify this controversy, we consider radiation problem in massless scalar quantum electrodynamics in the external magnetic field. In this framework, synchrotron radiation is found to be non-zero, finite, and essentially quantum. Its spectral distribution is calculated using Schwinger's proper time technique for ab initio massless particle of zero spin. Provided E2≫eH, the maximum in the spectrum is shown to be at ħω=E/3, and the average photon energy is 4E/9. The normalized spectrum is universal, depending neither on E nor on H. Quantum nature of radiation makes classical radiation reaction equation meaningless for massless charge. Classical theory is reliable only as providing the low-frequency part of the true quantum radiation spectrum.

  6. DEVELOPMENTS IN SYNCHROTRON X-RAY COMPUTED MICROTOMOGRAPHY AT THE NATIONAL SYNCHROTRON LIGHT SOURCE.

    Energy Technology Data Exchange (ETDEWEB)

    DOWD,B.A.

    1999-07-23

    Last year, the X27A beamline at the National Synchrotron Light Source (NSLS) became dedicated solely to X-Ray Computed Microtomography (XCMT). This is a third-generation instrument capable of producing tomographic volumes of 1-2 micron resolution over a 2-3mm field of view. Recent enhancements will be discussed. These have focused on two issues: the desire for real-time data acquisition and processing and the need for highly monochromatic beam (.1 % energy bandpass). The latter will permit k-edge subtraction studies and will provide improved image contrast from below the Cr (6 keV) up to the Cs (36 keV) k-edge. A range of applications that benefit from these improvements will be discussed as well. These two goals are somewhat counterproductive, however; higher monochromaticity yields a lower flux forcing longer data acquisition times. To balance the two, a more efficient scintillator for X-ray conversion is being developed. Some testing of a prototype scintillator has been performed; preliminary results will be presented here. In the meantime, data reconstruction times have been reduced, and the entire tomographic acquisition, reconstruction and volume rendering process streamlined to make efficient use of synchrotron beam time. A Fast Filtered Back Transform (FFBT) reconstruction program recently developed helped to reduce the time to reconstruct a volume of 150 x 150 x 250 pixels{sup 3} (over 5 million voxels) from the raw camera data to 1.5 minutes on a dual R10,000 CPU. With these improvements, one can now obtain a ''quick look'' of a small tomographic volume ({approximately}10{sup 6}voxels) in just over 15 minutes from the start of data acquisition.

  7. Analysis of Modular Construction of AP1000 3rd-generation PWR Nuclear Generator%第三代压水堆核电机组AP1000的模块化施工分析

    Institute of Scientific and Technical Information of China (English)

    魏俊明; 刘琼; 孙坤

    2008-01-01

    即将在我国首次建造的AP1000第三代先进压水堆核电机组将大规模采用模块化的设计、施工技术.从施工角度看,AP1000的模块分为钢壳模块、大型结构模块、小型结构模块和设备模块,其中钢壳模块和大型结构模块的运输和吊装是施工的重点和难点.文章对模块化的施工情况进行了分析,重点分析了钢壳模块和大型结构模块的吊装和运输问题,为AP1000的模块化施工提供了思路和借鉴.

  8. Producing Terahertz Conherent Synchrotron Radiation Based On Hefei Light Source

    CERN Document Server

    De-Rong, Xu; Yan, Shao

    2014-01-01

    This paper theoretically proves that an electron storage ring can generate coherent radiation in THz region using a quick kicker magnet and an ac sextupole magnet. When the vertical chromaticity is modulated by the ac sextupole magnet, the vertical beam collective motion excited by the kicker produces a wavy spatial structure after a number of longitudinal oscillation periods. We calculate the radiation spectral distribution from the wavy bunch in Hefei Light Source(HLS). If we reduce electron energy to 400MeV, it can produce extremely strong coherent synchrotron radiation(CSR) at 0.115THz.

  9. Probing droplets with biological colloidal suspensions on smart surfaces by synchrotron radiation micro- and nano-beams

    KAUST Repository

    Marinaro, Giovanni

    2015-03-01

    Droplets with colloidal biological suspensions evaporating on substrates with defined wetting properties generate confined environments for initiating aggregation and self-assembly processes. We describe smart micro- and nanostructured surfaces, optimized for probing single droplets and residues by synchrotron radiation micro- and nanobeam diffraction techniques. Applications are presented for Ac-IVD and β-amyloid (1-42) peptides capable of forming cross-β sheet structures. Complementary synchrotron radiation FTIR microspectroscopy addresses secondary structure formation. The high synchrotron radiation source brilliance enables fast raster-scan experiments. © 2015 Elsevier Ltd.

  10. Probing droplets with biological colloidal suspensions on smart surfaces by synchrotron radiation micro- and nano-beams

    Science.gov (United States)

    Marinaro, G.; Accardo, A.; Benseny-Cases, N.; Burghammer, M.; Castillo-Michel, H.; Cotte, M.; Dante, S.; De Angelis, F.; Di Cola, E.; Di Fabrizio, E.; Hauser, C.; Riekel, C.

    2016-01-01

    Droplets with colloidal biological suspensions evaporating on substrates with defined wetting properties generate confined environments for initiating aggregation and self-assembly processes. We describe smart micro- and nanostructured surfaces, optimized for probing single droplets and residues by synchrotron radiation micro- and nanobeam diffraction techniques. Applications are presented for Ac-IVD and β-amyloid (1-42) peptides capable of forming cross-β sheet structures. Complementary synchrotron radiation FTIR microspectroscopy addresses secondary structure formation. The high synchrotron radiation source brilliance enables fast raster-scan experiments.

  11. Spatial Coherence of Synchrotron Radiation

    Energy Technology Data Exchange (ETDEWEB)

    Marchesini, S; Coisson, R

    2003-10-30

    Synchrotron Radiation (SR) has been widely used since the 80's as a tool for many applications of UV, soft X rays and hard X rays in condensed matter physics, chemistry and biology. The evolution of SR sources towards higher brightness has led to the design of low-emittance electron storage rings (emittance is the product of beam size and divergence), and the development of special source magnetic structures, as undulators. This means that more and more photons are available on a narrow bandwidth and on a small collimated beam; in other words there is the possibility of getting a high power in a coherent beam. In most applications, a monochromator is used, and the temporal coherence of the light is given by the monochromator bandwidth. With smaller and smaller sources, even without the use of collimators, the spatial coherence of the light has become appreciable, first in the UV and soft X ray range, and then also with hard X rays. This has made possible new or improved experiments in interferometry, microscopy, holography, correlation spectroscopy, etc. In view of these recent possibilities and applications, it is useful to review some basic concepts about spatial coherence of SR, and its measurement and applications. In particular we show how the spatial coherence properties of the radiation in the far field can be calculated with simple operations from the single-electron amplitude and the electron beam angular and position spreads. The gaussian approximation will be studied in detail for a discussion of the properties of the far field mutual coherence and the estimate of the coherence widths, and the comparison with the VanCittert-Zernike limit.

  12. Engineering Design of the Extention and Advanced Water Treatment Project of 3rd Water Treatment Plant in Lianyungang City%连云港市第三水厂二期及深度处理工程设计

    Institute of Scientific and Technical Information of China (English)

    王纵

    2011-01-01

    为确保连云港城市供水安全,连云港市第三水厂进行了改造,计划在2012年供水高峰前建成通水.连云港市第三水厂二期及深度处理工程设计规模分别为10万m3/d和20万m3/d.该文对项目的净水工艺进行了比选,并对主要净水工艺设计进行了介绍.%To ensure the safety of water supply in lianyungang, the 3rd Water Treatment Plant in Ljanyungang was reconstructed, which was scheduled to accomplish before the water peak in 2012. The scale of conventional water treatment in the second phase project and advanced treatment of the 3rd Water Treatment Plant is 100 000 nrVd and 200 000 mVd, respectively. The water purification process was compared and selected. The main process design was introduced.

  13. 1/3rd of all electrical power is imported. [Report of the annual conference of the Association of Danish Electrical Supply Undertakings (Danska Elverksfoereningen)

    Energy Technology Data Exchange (ETDEWEB)

    Magnusson, B.

    1982-10-01

    The author describes the content of speeches at the annual conference of the Association of Danish Electrical Supply Undertakings held on the 18th May at Copenhagen. He describes the debate concerning wind powered generators and nuclear power, and the new by laws of the association, coal imports versus nuclear power, and a survey of Danish electrical power consumption made by Henry Madsen.

  14. 1994 activity report: Stanford Synchrotron Radiation Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Cantwell, K.; Dunn, L. [eds.

    1994-01-01

    The SSRL facility delivered 89% of the scheduled user beam to 25 experimental stations during 6.5 months of user running. Users from private industry were involved in 31% of these experiments. The SPEAR accelerator ran very well with no major component failures and an unscheduled down time of only 2.9%. In addition to this increased reliability, there was a significant improvement in the stability of the beam. The enhancements to the SPEAR orbit as part of a concerted three-year program were particularly noticeable to users. The standard deviation of beam movement (both planes) in the last part of the run was 80 microns, major progress toward the ultimate goal of 50-micron stability. This was a significant improvement from the previous year when the movement was 400 microns in the horizontal and 200 microns in the vertical. A new accelerator Personal Protection System (PPS), built with full redundancy and providing protection from both radiation exposure and electrical hazards, was installed in 1994. It is not possible to describe in this summary all of the scientific experimentation which was performed during the run. However, the flavor of current research projects and the many significant accomplishments can be realized by the following highlights: A multinational collaboration performed several experiments involving x-ray scattering from nuclear resonances; Studies related to nuclear waste remediation by groups from Los Alamos National Laboratory and Pacific Northwest Laboratories continued in 1994; Diffraction data sets for a number of important protein crystals were obtained; During the past two years a collaboration consisting of groups from Hewlett Packard, Intel, Fisons Instruments and SSRL has been exploring the utility of synchrotron radiation for total reflection x-ray fluorescence (TRXRF); and High-resolution angle-resolved photoemission experiments have continued to generate exciting new results from highly correlated and magnetic materials.

  15. Synchrotron radiation applications in medical research

    Energy Technology Data Exchange (ETDEWEB)

    Thomlinson, W.

    1995-12-31

    The medical projects employing synchrotron radiation as discussed in this paper are, for the most part, still in their infancies and no one can predict the direction in which they will develop. Both the basic research and applied medical programs are sure to be advanced at the new facilities coming on line, especially the ESRF and Spring- 8. However, success is not guaranteed. There is a lot of competition from advances in conventional imaging with the development of digital angiography, computed tomography, functional magnetic resonance imaging and ultrasound. The synchrotron programs will have to provide significant advantages over these modalities in order to be accepted by the medical profession. Advances in image processing and potentially the development of compact sources will be required in order to move the synchrotron developed imaging technologies into the clinical world. In any event, it can be expected that the images produced by the synchrotron technologies will establish ``gold standards`` to be targeted by conventional modalities. A lot more work needs to be done in order to bring synchrotron radiation therapy and surgery to the level of human studies and, subsequently, to clinical applications.

  16. Proceedings of the SDIO/ONR Pulse Power Meeting 󈨞 (3rd) Held in Norfolk, Virginia on August 2-3, 1990

    Science.gov (United States)

    1990-08-01

    characteristics. Such methods include: fuel cells, batteries, electrolysis, thermal media, flywheels (e.g., homopolar generators), superconducting magnetic...Benchtop Hybrid Combustor for MHD Pulsed Power Supplies a turbopump and motor . The system is simple and has very few parts, significantly fewer than...by a system 3 comprising a computer-controlled stepper motor mounted on the combustor with two alignment rods to guide each fuel push rod

  17. 1994 Activity Report, National Synchrotron Light Source. Annual report, October 1, 1993-September 30, 1994

    Energy Technology Data Exchange (ETDEWEB)

    Rothman, E.Z. [ed.

    1995-05-01

    This report is a summary of activities carried out at the National Synchrotron Light Source during 1994. It consists of sections which summarize the work carried out in differing scientific disciplines, meetings and workshops, operations experience of the facility, projects undertaken for upgrades, administrative reports, and collections of abstracts and publications generated from work done at the facility.

  18. Paraxial Green's functions in Synchrotron Radiation theory

    CERN Document Server

    Geloni, G; Schneidmiller, E; Yurkov, M; Geloni, Gianluca; Saldin, Evgeni; Schneidmiller, Evgeni; Yurkov, Mikhail

    2005-01-01

    This work contains a systematic treatment of single particle Synchrotron Radiation and some application to realistic beams with given cross section area, divergence and energy spread. Standard theory relies on several approximations whose applicability limits and accuracy are often forgotten. We begin remarking that on the one hand, a paraxial approximation can always be applied without loss of generality and with ultra relativistic accuracy. On the other hand, dominance of the acceleration field over the velocity part in the Lienard-Wiechert expressions is not always granted and constitutes a separate assumption, whose applicability is discussed. Treating Synchrotron Radiation in paraxial approximation we derive the equation for the slow varying envelope function of the Fourier components of the electric field vector. Calculations of Synchrotron Radiation properties performed by others showed that the phase of the Fourier components of the electric field vector differs from the phase of a virtual point sourc...

  19. Chemical applications of synchrotron radiation: Workshop report

    Energy Technology Data Exchange (ETDEWEB)

    1989-04-01

    The most recent in a series of topical meetings for Advanced Photon Source user subgroups, the Workshop on Chemical Applications of Synchrotron Radiation (held at Argonne National Laboratory, October 3-4, 1988) dealt with surfaces and kinetics, spectroscopy, small-angle scattering, diffraction, and topography and imaging. The primary objectives were to provide an educational resource for the chemistry community on the scientific research being conducted at existing synchrotron sources and to indicate some of the unique opportunities that will be made available with the Advanced Photon Source. The workshop organizers were also interested in gauging the interest of chemists in the field of synchrotron radiation. Interest expressed at the meeting has led to initial steps toward formation of a Chemistry Users Group at the APS. Individual projects are processed separately for the data bases.

  20. Coherent Synchrotron Radiation: Theory and Simulations.

    Energy Technology Data Exchange (ETDEWEB)

    Novokhatski, Alexander; /SLAC

    2012-03-29

    The physics of coherent synchrotron radiation (CSR) emitted by ultra-relativistic electron bunches, known since the last century, has become increasingly important with the development of high peak current free electron lasers and shorter bunch lengths in storage rings. Coherent radiation can be described as a low frequency part of the familiar synchrotron radiation in bending magnets. As this part is independent of the electron energy, the fields of different electrons of a short bunch can be in phase and the total power of the radiation will be quadratic with the number of electrons. Naturally the frequency spectrum of the longitudinal electron distribution in a bunch is of the same importance as the overall electron bunch length. The interest in the utilization of high power radiation from the terahertz and far infrared region in the field of chemical, physical and biological processes has led synchrotron radiation facilities to pay more attention to the production of coherent radiation. Several laboratories have proposed the construction of a facility wholly dedicated to terahertz production using the coherent radiation in bending magnets initiated by the longitudinal instabilities in the ring. Existing synchrotron radiation facilities also consider such a possibility among their future plans. There is a beautiful introduction to CSR in the 'ICFA Beam Dynamics Newsletter' N 35 (Editor C. Biscari). In this paper we recall the basic properties of CSR from the theory and what new effects, we can get from the precise simulations of the coherent radiation using numerical solutions of Maxwell's equations. In particular, transverse variation of the particle energy loss in a bunch, discovered in these simulations, explains the slice emittance growth in bending magnets of the bunch compressors and transverse de-coherence in undulators. CSR may play same the role as the effect of quantum fluctuations of synchrotron radiation in damping rings. It can limit