Science.gov

Sample records for experiments present status

  1. Present Status of the Experiment TGV II

    NASA Astrophysics Data System (ADS)

    Štekl, I.; Čermák, P.; Beneš, P.; Brudanin, V. B.; Rukhadze, N. I.; Egorov, V. G.; Kovalenko, V. E.; Kovalík, A.; Salamatin, A. V.; Vylov, Ts.; Šimkovic, F.

    2002-04-01

    Present status of the experiment TGV II is given. The experiment TGV II is devoted to the measurement of double-beta decay of 106Cd and 48Ca. The new HPGe multi-detector TGV spectrometer has been constructed and installed in the Modane underground laboratory (in France). Preliminary results of the first background measurement are presented.

  2. The Majorana Double Beta Decay Experiment: Present Status

    SciTech Connect

    Aguayo, Estanislao; Avignone, Frank T.; Back, Henning O.; Barabash, Alexander S.; Beene, Jim; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Busch, Matthew; Chan, Yuen-Dat; Christofferson, C. D.; Collar, J. I.; Combs, Dustin C.; Cooper, R. J.; Detwiler, Jason A.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, S. R.; Esterline, James H.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, M. P.; Guiseppe, V. E.; Gusey, K.; Hallin, A. L.; Hazama, R.; Henning, Reyco; Hime, Andrew; Hoppe, Eric W.; Horton, Mark; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keller, C.; Kidd, M. F.; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; Laferriere, Brian D.; LaRoque, B. H.; Leon, Jonathan D.; Leviner, L.; Loach, J. C.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Mei, Dong-Ming; Merriman, Jason H.; Miller, M. L.; Mizouni, Leila; Nomachi, Masaharu; Orrell, John L.; Overman, Nicole R.; Phillips II, D. G.; Poon, Alan; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Rielage, Keith; Robertson, R. G. H.; Ronquest, M. C.; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Snavely, Kyle J.; Steele, David; Strain, J.; Thomas, K.; Timkin, V.; Tornow, W.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, J. F.; Yakushev, E.; Young, A.; Yu, Chang-Hong; Yumatov, Vladimir; Zhang, C.

    2013-06-01

    The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale 76Ge neutrinoless double-beta decay experiment, an R&D effort that will field approximately 40 kg of germanium detectors with mixed enrichment levels. This article provides a status update on the construction of the Demonstrator

  3. Present status of the MISTRAL mass measurement experiment

    SciTech Connect

    Monsanglant, C.; Audi, G.; Doubre, H.; Duma, M.; Jacotin, M.; Kepinski, J.-F.; Le Scornet, G.; Saint Simon, M. de; Thibault, C.; Borcea, C.; Lebee, G.; Lunney, M. D.; Toader, C.

    1998-10-26

    The MISTRAL experiment for measuring masses of very short-lived nuclides at ISOLDE has been installed during the summer of 1997 and has had its first radioactive beam in November 1997. Tests are presently been carried out to study all possible systematic effects. This paper recalls the basic principles of the Smith-type radio-frequency spectrometer, gives its present characteristics and limitations, and describes the methods used to improve its performances.

  4. Present Status and Future Perspectives of the NEXT Experiment

    DOE PAGESBeta

    Gómez Cadenas, J. J.; Álvarez, V.; Borges, F. I. G.; Cárcel, S.; Castel, J.; Cebrián, S.; Cervera, A.; Conde, C. A. N.; Dafni, T.; Dias, T. H. V. T.; et al

    2014-01-01

    NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector is a TPC, holding 100 kg of high-pressure xenon enriched in the136Xe isotope. It is under construction in the Laboratorio Subterráneo de Canfranc in Spain, and it will begin operations in 2015. The NEXT detector concept provides an energy resolutionbetter than 1% FWHM and a topological signal that can be used to reduce the background. Furthermore, the NEXT technology can be extrapolated to a 1 ton-scale experiment.

  5. Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka

    SciTech Connect

    Nishimura, H.; Azechi, H.; Mima, K.; Fujimoto, Y.; Fujioka, S.; Homma, H.; Jitsuno, T.; Johzaki, T.; Koga, M.; Kawanaka, J.; Kawasaki, T.; Miyanaga, N.; Murakami, H.; Murakami, M.; Nagatomo, H.; Morio, N.; Nagai, K.; Nakai, M.; Nakamura, T.; Nakazato, T.

    2010-02-02

    Thermonuclear ignition and subsequent burn are key physics for achieving laser fusion. In fast ignition, a highly compressed fusion fuel generated with multiple ns-laser beams is rapidly heated with a large energy, ps-laser pulse in prior to core disassembly. This scheme has a high potential to achieve ignition and burn since driver energy required for high fusion gain is predicted to be about one tenth of that needed for the central ignition scheme. In Japan, Fast Ignition Realization Experiment (FIREX) project has been started to clarify the physics of energy transport and deposition in the core plasma and to demonstrate fuel temperature of above 5 keV. After the success, FIREX-I will be followed by the second phase of the project (FIREX-II) to demonstrate ignition and burn. LFEX laser, designed to deliver a laser pulse of 10 kJ in 10 ps, are operational and the first phase of FIREX experiments has been stated. A new target is proposed to attain dense compression of fuel and improve laser-core coupling efficiency by adopting double-cone structure, a low-density inner liner, low-Z outer coating, and Br-doped fuel shell. In this paper, present status and near term prospects of the FIREX-I project will be reported together with activities on target designing, laser development, and plasma diagnostics.

  6. Indian aerosols: present status.

    PubMed

    Mitra, A P; Sharma, C

    2002-12-01

    This article presents the status of aerosols in India based on the research activities undertaken during last few decades in this region. Programs, like International Geophysical Year (IGY), Monsoon Experiment (MONEX), Indian Middle Atmospheric Program (IMAP) and recently conducted Indian Ocean Experiment (INDOEX), have thrown new lights on the role of aerosols in global change. INDOEX has proved that the effects of aerosols are no longer confined to the local levels but extend at regional as well as global scales due to occurrence of long range transportation of aerosols from source regions along with wind trajectories. The loading of aerosols in the atmosphere is on rising due to energy intensive activities for developmental processes and other anthropogenic activities. One of the significant observation of INDOEX is the presence of high concentrations of carbonaceous aerosols in the near persistent winter time haze layer over tropical Indian Ocean which have probably been emitted from the burning of fossil-fuels and biofuels in the source region. These have significant bearing on the radiative forcing in the region and, therefore, have potential to alter monsoon and hydrological cycles. In general, the SPM concentrations have been found to be on higher sides in ambient atmosphere in many Indian cities but the NOx concentrations have been found to be on lower side. Even in the haze layer over Indian Ocean and surrounding areas, the NOx concentrations have been reported to be low which is not conducive of O3 formation in the haze/smog layer. The acid rain problem does not seem to exist at the moment in India because of the presence of neutralizing soil dust in the atmosphere. But the high particulate concentrations in most of the cities' atmosphere in India are of concern as it can cause deteriorated health conditions. PMID:12492171

  7. Present status and future of the experiment TGV (measurement of double beta decay of48Ca)

    NASA Astrophysics Data System (ADS)

    Brudanin, V. B.; Egorov, V. G.; Kovalík, A.; Kovalenko, V. E.; Rukhadze, N. I.; Salamatin, A. V.; Sandukovsky, V. G.; Timkin, V. V.; Vylov, Ts.; Zaparov, Ch.; Briancon, Ch.; Janout, Z.; Koníček, J.; Kubašta, J.; Pospíšil, S.; Štekl, I.; Vorobel, V.

    1998-02-01

    A short description of experiment TGV (double beta decay of48Ca) is given. The measurement started in the Modane underground laboratory in August 1996. The first result of T {1/2/0 ν } ≥ 4.6 × 1020 years [90% CL] after 2545 hours is presented.

  8. Double Beta Decay Experiments: Present Status and Prospects for the Future

    NASA Astrophysics Data System (ADS)

    Barabash, A. S.

    The review of modern experiments on search and studying of double beta decay processes is done. Results of the most sensitive current experiments are discussed. The main attention is paid to EXO-200, KamLAND-Zen, GERDA-I and CUORE-0 experiments. Modern values of T1/2(2ν) and best present limits on neutrinoless double beta decay and double beta decay with Majoron emission are presented. Conservative limits on effective mass of a Majorana neutrino ( < 0.46 eV) and a coupling constant of Majoron to neutrino ( < 1.3 × 10-5) are obtained. In the second part of the review prospects of search for the neutrinoless double beta decay in new experiments with sensitivity to at the level of ∼ (0.01-0.1) eV are discussed. The main attention is paid to experiments of CUORE, GERDA, MAJORANA, EXO, KamLAND-Zen-2, SuperNEMO and SNO+. Possibilities of low-temperature scintillating bolometers on the basis of inorganic crystals (ZnSe, ZnMoO4, Li2MoO4, CaMoO4 and CdWO4) are considered too.

  9. Status and perspectives of neutrino physics at present and future experiments

    NASA Astrophysics Data System (ADS)

    Pagliarone, Carmine Elvezio

    2016-03-01

    Neutrino Physics and Dark Matter searches play a crucial role in nowadays Particle and Astroparticle Physics. The present review paper will describe general properties of neutrinos and neutrino mass phenomenology (Dirac and Majorana masses). Space will be dedicated to the experimental attempts to answer the question of the neutrino mass hierarchy. We will give, then, a short review of the results of part of the experiments that have been running so far. We will also shortly summarize future experiments that plan to explore this very wide scientific area.

  10. Present Status of Kamland

    NASA Astrophysics Data System (ADS)

    Inoue, Kunio

    2001-01-01

    The KamLAND experiment can explore world lowest mass difference region of neutrino oscillation parameter with an artificial neutrino source. It observes anti-neutrinos from various power plants spread in Japan with about 175 km baseline. This baseline is two order of magnitude longer than those of previously performed reactor experiments 1,2. This challenging measurement requires very low background environment as low as 10-13 g/g Uranium and Thorium impurities. In order to achieve this very low impurity level, various techniques (detector design, material selection, construction scheme etc) have been invested. These efforts have been rewarded rather quickly and current achievement doesn't hinder even the 7Be solar neutrino observation requiring 10-16 g/g U and Th impurities. Various background sources relevant to the reactor and solar neutrino observation are considered and description of efforts to eliminate those backgrounds are the main issue of this manuscript. Physics goal and current successful construction status are also highlighted.

  11. Unimolecular rectifiers: Present status

    NASA Astrophysics Data System (ADS)

    Metzger, Robert M.

    2006-07-01

    Many experimental issues presented here must be resolved before we can really understand unimolecular rectification. Nevertheless, at the University of Alabama six unimolecular rectifiers have been studied (Fig. 1, 1- 6). Langmuir-Blodgett (LB) or Langmuir-Schaefer (LS) monolayer films of these molecules show asymmetric electrical conductivity between Au and Al electrodes. When the films are very compact (LS of 4, LB of 5), and if there is finite intramolecular charge transfer (ICT, or intervalence transfer, IVT), then the electrical behavior persists for many cycles of measurement.

  12. STATUS OF THE MINOS EXPERIMENT.

    SciTech Connect

    DIWAN,M.

    2002-09-13

    The author presents the status of the long baseline neutrino oscillation experiment MINOS at Fermi National Accelerator Laboratory (Fermilab). He also summarizes the status of the detector and beam construction, the expected event rates and sensitivity to physics. He also comments on possible future plans to improve the performance of the experiment.

  13. Schedule and status of irradiation experiments

    SciTech Connect

    Rowcliffe, A.F.; Grossbeck, M.L.

    1997-04-01

    To provide an updated summary of the status of irradiation experiments for the neutron-interactive materials program. The current status of reactor irradiation experiments is presented in tables summarizing the experimental objectives, conditions, and schedule. Currently, the program has two irradiation experiments in reactor; and 8 experiments in the planning or design stages. Postirradiation examination and testing is in progress on 18 experiments.

  14. Status of RENO Experiment

    SciTech Connect

    Jang, Jee-Seung

    2011-10-06

    The RENO (Reactor Experiment for Neutrino Oscillation) experiment is under construction to measure the smallest neutrino mixing angle {theta}{sub 13} using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. The experiment is planning to start data-taking in early 2011 with two identical 16-ton Gadolinium loaded liquid scintillator detectors located near and far from the center of the reactor array. The estimated systematic uncertainty associated with the measurement is less than 0.6%. Based on three years of data, the expected statistical error is about 0.3% and it would be sensitive to measure the neutrino mixing angle in the range, sin{sup 2}(2{theta}{sub 13})> 0.02. In this talk, the overview and status of RENO experiment are described.

  15. Status of RENO Experiment

    NASA Astrophysics Data System (ADS)

    Jang, Jee-Seung

    2011-10-01

    The RENO (Reactor Experiment for Neutrino Oscillation) experiment is under construction to measure the smallest neutrino mixing angle θ13 using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. The experiment is planning to start data-taking in early 2011 with two identical 16-ton Gadolinium loaded liquid scintillator detectors located near and far from the center of the reactor array. The estimated systematic uncertainty associated with the measurement is less than 0.6%. Based on three years of data, the expected statistical error is about 0.3% and it would be sensitive to measure the neutrino mixing angle in the range, sin2(2θ13)> 0.02. In this talk, the overview and status of RENO experiment are described.

  16. Status of RENO Experiment

    NASA Astrophysics Data System (ADS)

    Jeon, Eun-Ju; RENO Collaboration

    2011-08-01

    An experiment, RENO ( Reactor Experiment for Neutrino Oscillation), is under construction to measure the smallest and unknown neutrino mixing angle ( θ) using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. The experimental setup consists of two identical 16-ton Gadolinium loaded liquid scintillator detectors located near and far from the reactor array to measure the deviations from the inverse square distance law. The experiment is planned to start data-taking in early 2011. An estimated systematic uncertainty associated with the measurement is less than 0.6%. Based on three years of data, it would be sensitive to measure the neutrino mixing angle in the range of s(2θ)>0.02. In this talk, the status of RENO experiment is described.

  17. MOON for a next-generation neutrino-less double-beta decay experiment: Present status and perspective

    SciTech Connect

    Shima, T.; Doe, P.J.; Ejiri, H.; Elliot, S.R.; Engel, J.; Finger, M.; Finger, M.; Fushimi, K.; Gehman, V.M.; Greenfield, M.B.; Hazama, R.; /Hiroshima U. /NIRS, Chiba

    2008-01-01

    The performance of the MOON detector for a next-generation neutrino-less double-beta decay experiment was evaluated by means of the Monte Carlo method. The MOON detector was found to be a feasible solution for the future experiment to search for the Majorana neutrino mass in the range of 100-30 meV.

  18. Status of the COBRA experiment

    SciTech Connect

    Zuber, Kai

    2009-11-09

    The current status of the COBRA experiment is described. Results on the 4-fold forbidden beta decay of {sup 113}Cd and a variety of double beta decay limits of Cd, Zn and Te isotopes are presented based on 18 kgxdays of exposure with an array of sixteen CdZnTe semiconductor detectors. A short description on the activities with pixelated detectors for tracking is given.

  19. Status of the COBRA experiment

    NASA Astrophysics Data System (ADS)

    Zuber, Kai

    2009-11-01

    The current status of the COBRA experiment is described. Results on the 4-fold forbidden beta decay of 113Cd and a variety of double beta decay limits of Cd, Zn and Te isotopes are presented based on 18 kg×days of exposure with an array of sixteen CdZnTe semiconductor detectors. A short description on the activities with pixelated detectors for tracking is given.

  20. Present status of aircraft instruments

    NASA Technical Reports Server (NTRS)

    1932-01-01

    This report gives a brief description of the present state of development and of the performance characteristics of instruments included in the following group: speed instruments, altitude instruments, navigation instruments, power-plant instruments, oxygen instruments, instruments for aerial photography, fog-flying instruments, general problems, summary of instrument and research problems. The items considered under performance include sensitivity, scale errors, effects of temperature and pressure, effects of acceleration and vibration, time lag, damping, leaks, elastic defects, and friction.

  1. Methaemoglobinaemia presenting with status epilepticus.

    PubMed Central

    Malhotra, R; Hughes, G

    1996-01-01

    A case is reported of methaemoglobinaemia presenting with recurrent fits in the absence of cyanosis. A low oxygen saturation measured on pulse oximetry that fails to improve with oxygen treatment, the presence of "chocolate brown" blood that does not change on exposure to air, and a high PaO2 arterial blood gas with oxygen therapy should support such a diagnosis. A diagnostic blood methaemoglobin level should be obtained. PMID:9091107

  2. G0 experiment status

    SciTech Connect

    G. Batigne

    2004-02-01

    The G0 project is a parity violation experiment dedicated to the measurement of the proton weak and axial form factors by means of elastic electron scattering. Combining these weak form factors with the known electromagnetic ones makes possible the extraction of the contribution of strange quarks to the charge and magnetization distributions in the nucleon. After introducing the physics case, this paper describes the G0 apparatus and the measurements planned. An engineering run of this experiment took place recently ; first results are presented.

  3. Experiment SPHERE status 2008

    NASA Astrophysics Data System (ADS)

    Shaulov, S. B.; Besshapov, S. P.; Kabanova, N. V.; Sysoeva, T. I.; Antonov, R. A.; Anyuhina, A. M.; Bronvech, E. A.; Chernov, D. V.; Galkin, V. I.; Tkaczyk, W.; Finger, M.; Sonsky, M.

    2009-12-01

    The expedition carried out in March, 2008 to Lake Baikal became an important stage in the development of the SPHERE experiment. During the expedition the SPHERE-2 installation was hoisted, for the first time, on a tethered balloon, APA, to a height of 700 m over the lake surface covered with ice and snow. A series of test measurements were made. Preliminary results of the data processing are presented. The next plan of the SPHERE experiment is to begin a set of statistics for constructing the CR spectrum in the energy range 10-10 eV.

  4. Experience With A Small Scale All Digital CT And MRI Clinical Service Unit: Present Status Of Kyoto University Hospital Image Database And Communication System

    NASA Astrophysics Data System (ADS)

    Minato, K.; Komori, M.; Nakano, Y.

    1988-06-01

    Kyoto University Hospital is currently developing a prototype PAC system named KIDS (Kyoto univ. hosp. Image Database and communication System). The present goal of the system is to achieve the totally digital CT and MRI unit in the radiological department. Because KIDS is designed as a first step of a long-range plan towards a hospital wide system, it includes all of the basic functions required in realizing the PAC system, such as communication networks, a long term archiving unit, a laser film printer and image workstations. The system concept, architecture and current status are described in this paper. Our early experience and evaluations with the system in a clinical environment are also mentioned.

  5. Big bang nucleosynthesis: Present status

    NASA Astrophysics Data System (ADS)

    Cyburt, Richard H.; Fields, Brian D.; Olive, Keith A.; Yeh, Tsung-Han

    2016-01-01

    Big bang nucleosynthesis (BBN) describes the production of the lightest nuclides via a dynamic interplay among the four fundamental forces during the first seconds of cosmic time. A brief overview of the essentials of this physics is given, and new calculations presented of light-element abundances through 6Li and 7Li, with updated nuclear reactions and uncertainties including those in the neutron lifetime. Fits are provided for these results as a function of baryon density and of the number of neutrino flavors Nν. Recent developments are reviewed in BBN, particularly new, precision Planck cosmic microwave background (CMB) measurements that now probe the baryon density, helium content, and the effective number of degrees of freedom Neff. These measurements allow for a tight test of BBN and cosmology using CMB data alone. Our likelihood analysis convolves the 2015 Planck data chains with our BBN output and observational data. Adding astronomical measurements of light elements strengthens the power of BBN. A new determination of the primordial helium abundance is included in our likelihood analysis. New D/H observations are now more precise than the corresponding theoretical predictions and are consistent with the standard model and the Planck baryon density. Moreover, D/H now provides a tight measurement of Nν when combined with the CMB baryon density and provides a 2 σ upper limit Nν<3.2 . The new precision of the CMB and D/H observations together leaves D/H predictions as the largest source of uncertainties. Future improvement in BBN calculations will therefore rely on improved nuclear cross-section data. In contrast with D/H and 4He, 7Li predictions continue to disagree with observations, perhaps pointing to new physics. This paper concludes with a look at future directions including key nuclear reactions, astronomical observations, and theoretical issues.

  6. Status of the MINOS Experiment

    SciTech Connect

    Elizabeth Buckley-Geer

    2003-03-17

    We report on the status of the MINOS long baseline neutrino experiment presently under construction at the Fermi National Accelerator Laboratory and the Soudan mine. There is growing evidence that the solar neutrino and atmospheric neutrino anomalies [1] are the result of neutrino oscillations. The MINOS experiment is a long baseline neutrino oscillation experiment designed to study the region of parameter space indicated by the SuperKamiokande atmospheric neutrino results [2]. The experiment consists of two detectors, one with a mass of 980 tons located at Fermilab (the near detector) and the other of mass 5400 tons located 731 km away in the Soudan mine in northern Minnesota (the far detector). The third component is the neutrino beam which is currently under construction at Fermilab.

  7. ARC EMCS Experiments (Seedling Growth-2) Experiment Status

    NASA Technical Reports Server (NTRS)

    Heathcote, David; Steele, Marianne

    2015-01-01

    Presentation of the status of the ARC ISS (International Space Station) Experiment, Seedling Growth-2 to the Payload Operations Investigator Working Group meeting at MSFC, Huntsville AL. The experiment employs the European Modular Cultivation System (ECMS).

  8. Status Change and the Presentation of Minority Perspectives

    ERIC Educational Resources Information Center

    Youngreen, Reef

    2010-01-01

    How does the presentation of minority perspectives in the context of group problem-solving tasks affect the relative status positions of group members? The answer seems to depend on the initial position of the minority view presenters. Results from a controlled laboratory experiment show support for the hypothesis that people lose status for…

  9. Schedule and status of irradiation experiments

    SciTech Connect

    Rowcliffe, A.F.; Grossbeck, M.L.; Robertson, J.P.

    1998-09-01

    The current status of reactor irradiation experiments is presented in tables summarizing the experimental objectives, conditions, and schedule. Currently, the program has one irradiation experiment in reactor and five experiments in the design or construction stages. Postirradiation examination and testing is in progress on ten experiments.

  10. Schedule and status of irradiation experiments

    SciTech Connect

    Rowcliffe, A.F.; Grossbeck, M.L.; Robertson, J.P.

    1998-03-01

    The current status of reactor irradiation experiments is presented in tables summarizing the experimental objectives, conditions, and schedule. Currently, the program has four irradiation experiments in reactor, and five experiments in the design or construction stages. Postirradiation examination and testing is in progress on ten experiments.

  11. National Hydrogen Learning Demonstration Status (Presentation)

    SciTech Connect

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C.; Saur, G.

    2012-02-01

    This presentation discusses U.S. DOE Learning Demonstration Project goals, fuel cell vehicle and H2 station deployment status, and technical highlights of vehicle and infrastructure analysis results and progress.

  12. The present status of the HIPPARCOS Project

    NASA Astrophysics Data System (ADS)

    Perryman, M. A. C.

    To complete the accompanying and more detailed information provided by MATRA, INCA, and FAST members on the status of the instrumental parameters, Input Catalogue preparation and FAST data analysis tasks respectively, a concise overview of the project status is given here. This overview presents the current project schedule and emphasizes those areas where recent and significant progress has been made of direct relevance to the scientific groups involved in the project.

  13. Status of the CBM experiment

    NASA Astrophysics Data System (ADS)

    Heuser, Johann M.

    2015-05-01

    The Compressed Baryonic Matter (CBM) experiment at the Facility for Anti-Proton and Ion Research (FAIR) will explore the phase diagram of strongly interacting matter at highest net baryon densities and moderate temperatures. The CBM physics program will be started with beams delivered by the SIS 100 synchrotron, providing energies from 2 to 11 GeV/nucleon for heavy nuclei, up to 14 GeV/nucleon for light nuclei, and 29 GeV for protons. The highest net baryon densities will be explored with ion beams up to 45 GeV/nucleon energy delivered by SIS 300 in the next stage of FAIR. Collision rates up to 107 per second are required to produce very rare probes with unprecedented statistics in this energy range. Their signatures are complex. These conditions call for detector systems designed to meet the extreme requirements in terms of rate capability, momentum and spatial resolution, and a novel DAQ and trigger concept which is not limited by latency but by throughput. The article discusses the development status of the CBM sub-systems for charged particle tracking, vertex detection, electron/muon identification, hadron/time-of-flight measurement, electromagnetic and zero-degree calorimetry, in terms of prototypes and expected physics performance. The concept and development status of CBM's central detector, the Silicon Tracking System STS are presented in somewhat more detail.

  14. Status of the UCNA Experiment

    NASA Astrophysics Data System (ADS)

    Phillips, David; UCNA Collaboration Collaboration

    2013-10-01

    The UCNA experiment at the Los Alamos Neutron Science Center (LANSCE) is the only experiment to ever perform a measurement of the neutron β-decay asymmetry parameter A (E) using ultracold neutrons (UCN). UCN are produced from a pulsed spallation solid deuterium source coupled to the 800 MeV proton beam at LANSCE. The UCN spin states are selected via a 7 T polarizing field and an adiabatic fast passage spin flipper. The polarized UCN are then transported to a 1 T 2 ×2 π spectrometer where the emitted electrons are measured from a sample with density of order ~1 UCN/cm3 (since 2008 running). In the Standard Model, the leading order value of A (E) , A0, is a function of the axial-vector to vector coupling ratio λ ≡gA /gV , providing complementary data to the physics probed by measurements of the neutron lifetime τn. When taken together with τn, measurements of the beta decay asymmetry permit a nuclear structure independent determination of the CKM matrix element Vud. This talk presents an overview of the UCNA experiment, the analysis status of our 2011/2012 & 2012/2013 datasets, and the path forward.

  15. Fuel Cell Technology Status - Voltage Degradation (Presentation)

    SciTech Connect

    Kurtz, J.; Wipke,; Sprik, S.; Saur, G.

    2012-06-01

    This presentation describes an independent assessment of fuel cell durability status and discusses the project's relevance to the Department of Energy Hydrogen and Fuel Cells Program; NREL's analysis approach; the FY12 technical accomplishments including the fourth annual publication of results; and project collaborations and future work.

  16. Present status of TOPAZ FASTBUS system

    SciTech Connect

    Ikeda, H.; Tauchi, T.; Yamauchi, M.

    1986-02-01

    The architecture of the data acquisition system for the TOPAZ detector is reviewed, together with the description on the present status of the FASTBUS development. Miniature version of TOPAZ FASTBUS system is currently being set up for the cosmic ray test of the TOPAZ TPC under control of VAX/FPI.

  17. Status of the OLYMPUS Experiment

    NASA Astrophysics Data System (ADS)

    Schmidt, Axel; Olympus Collaboration

    2016-03-01

    The OLYMPUS Experiment finished collecting data at DESY, Hamburg, in 2013, and the analysis effort is well underway. The goal of the experiment is to measure the ratio of electron-proton to positron-proton elastic scattering cross sections with 1 percent uncertainty. Deviation in this ratio from unity is evidence of hard two-photon exchange, an effect which may be responsible for the current proton form-factor discrepancy. At OLYMPUS, alternating beams of positrons and electrons were directed through a windowless hydrogen gas target, and the scattered lepton and recoiling proton were detected in coincidence in a large-acceptance magnetic spectrometer. Forward tracking telescopes, and Møller/Bhabha calorimeters independently monitored the relative luminosity of the electron and positron running modes. Over 4 fb-1 of integrated luminosity were collected, giving OLYMPUS excellent statistical precision. The analysis procedure as well as the current status will be presented. This work is supported by DOE Grant DE-FG02-94ER40818.

  18. Status of the MEG Experiment

    SciTech Connect

    Maki, Aki

    2008-02-21

    The MEG experiment which searches for {mu}{yields}e{gamma} decays at the sensitivity level of 10{sup -13} is now in its final stage of the preparation. Some data run is expected by the end of the year 2007. The statuses of each detector components are described.

  19. Optical profiling of anticoagulation status (Conference Presentation)

    NASA Astrophysics Data System (ADS)

    Tshikudi, Diane M.; Tripathi, Markandey M.; Hajjarian, Zeinab; Nadkarni, Seemantini K.

    2016-02-01

    Defective blood coagulation resulting from excessive procoagulant activity often leads to thrombotic disorders such as stroke and myocardial infarction. A variety of oral and injectable anticoagulant drugs are prescribed to prevent or treat life-threatening thrombosis. However, due to bleeding complications often associated with anticoagulant treatment, routine monitoring and accurate dosing of anticoagulant therapy is imperative. We have developed Optical thromboelastography (OTEG), a non-contact approach that utilizes a drop of whole blood to measure blood coagulation status in patients. Here, we demonstrate the capability of OTEG for rapidly monitoring anticoagulation in whole blood samples. OTEG monitors coagulation status by assessing changes in blood viscosity from temporal intensity fluctuations of laser speckle patterns during clotting. In OTEG a blood drop is illuminated with coherent light and the blood viscosity is measured from the speckle intensity autocorrelation curve, g2 (t). The metrics, clotting time (R+k), clot progression (angle) and maximum clot stiffness (MA) are then extracted. The aim of the current study was to evaluate the accuracy of OTEG in assessing anticoagulation status of common anticoagulants including heparin, argatroban and rivaroxaban status. A dose-dependent prolongation of R+k was observed in anticoagulated blood, which closely corresponded with standard-reference Thromboelastography (TEG) (r 0.87-0.99, P>0.01 for all cases). OTEG angle was unaltered by anticoagulation whereas TEG angle presented a dose-dependent diminution probably linked to clot rupture. In both OTEG and TEG, MA was unaffected by heparin, argatroban or rivaroxaban. We conclude that OTEG can accurately monitor anticoagulation status following treatment, potentially providing a powerful tool for routine monitoring of patients in the doctor's office or in the home setting.

  20. Present status and trends of image fusion

    NASA Astrophysics Data System (ADS)

    Xiang, Dachao; Fu, Sheng; Cai, Yiheng

    2009-10-01

    Image fusion information extracted from multiple images which is more accurate and reliable than that from just a single image. Since various images contain different information aspects of the measured parts, and comprehensive information can be obtained by integrating them together. Image fusion is a main branch of the application of data fusion technology. At present, it was widely used in computer vision technology, remote sensing, robot vision, medical image processing and military field. This paper mainly presents image fusion's contents, research methods, and the status quo at home and abroad, and analyzes the development trend.

  1. Modeling of enhanced gravity concentrators - present status

    SciTech Connect

    A.K. Majumder; J.P. Barnwal

    2006-01-15

    The majority of the newly developed enhanced gravity concentrators (EGCs) have tremendous potentials for various applications. Therefore, the performance evaluation of these concentrators treating various minerals, coals, heavy metal recovery from tailing dams, etc., have become an active research topic. Several attempts have also been made to develop appropriate mathematical models of individual concentrators. Despite all these efforts, these concentrators have yet to find the widespread applications they deserve. The present status of modeling these EGCs with a brief description of the operating principles and the present applications are, therefore, reviewed in this article. Research needs in this direction are also highlighted.

  2. Present status of information centers (libraries)

    NASA Astrophysics Data System (ADS)

    Suzuki, Keigo; Adachi, Takashi; Kusumi, Yoshihisa; Nishiyama, Mieko; Hirata, Toshiichiro

    Documentation Kondan-Kai (gathering for discussing issues) has conducted the questionnaire which asks present status of information centers of companies. The purpose of this questionnaire was to obtain some tips which would be useful for companies to consider what their information centers should be in a highly informationalized society, and how they should be changing. The results were grouped into the following five sections and analyzed; (1) management system of information center, (2) use condition of information center, (3) management of books and journals, (4) external online information retrieval and (5) management of technical materials generated inside company.

  3. ECR ion sources: present status and prospects

    NASA Astrophysics Data System (ADS)

    Melin, G.

    1997-01-01

    Although now widely used for many applications, the electron cyclotron resonance ion sources (ECRIS), an outgrowth of the fusion plasma research, still suffer from some mystification, or at least from a lack of understanding. This article is an attempt to give a broad overview of the today ECRIS activity devoted to the production of highly charged ions: it therefore describes both physics and theory efforts, technology, performances, plans and prospects as well. An important chapter gives the status of understanding the ECRIS behavior, both the current thinking on how they operate and the experimental evidences whenever it is possible. The various existing sources, their design and main features, are then surveyed. At last the present trends of development, the potential directions for future improvement are examined.

  4. Present Status of Janaese Venus Climate Orbiter

    NASA Astrophysics Data System (ADS)

    Nakamura, M.; Imamura, T.; Ishii, N.; Satoh, T.; Abe, T.; Ueno, M.; Suzuki, M.; Yamazaki, A.

    2007-08-01

    The start of the Japanese Venus Exploration program was in 2001, and last year (2006) we moved it to Phase C after PDR in August.We would like to report the present status of our Venus Climate Orbiter. Planet-C is the project name in ISAS/JAXA. The launch vehicle is changed from M-V to H-IIA. It will be launched from Tanegashima Space Center (TNSC) in Kagoshima. With this modification, we changed some minor design of the spacecraft and the total weight is slightly heavier than before, but the basic design has not been modified. The launch window will be kept in summer in 2010 and it will arrive at Venus in December 2010. The spacecraft will be directly put into the interplanetary orbit. Now we are preparing the Mechanical and Thermal engineering Model (MTM) which will end in middle of 2007 and will shake it and do the thermal vacuum test. Later this model will be modified to the flight model and the final integration test will be in 2009 which takes 1 year. Development of all the science instruments are going well. The first integration test of science instruments will be in August this year. We can report the results of it in the meeting.

  5. Status of the CDF II experiment

    SciTech Connect

    S. Rolli

    2002-08-14

    The status of the CDF II experiment is described. Since operations start-up for run II data taking in March 2001, the CDF detector has been commissioned using about 20 pb{sup -1} of data provided by the Tevatron (utilized about 4-8). Most detector components are ready for physics quality data. The goal is to present the first physics results by summer-fall 2002.

  6. Present Status and Prospects of FIREX Project

    NASA Astrophysics Data System (ADS)

    Mima, K.

    2008-07-01

    The goal of the first phase of Fast Ignition Realization EXperiment (FIREX) project (FIREX-I) is to demonstrate ignition temperature of 5-10 keV, followed by the second phase to demonstrate ignition and burn. Since starting FIREX-I project, plasma physics study in ILE has been devoted to increase the coupling efficiency and to improve compression performance. The heating efficiency can be increased by the following two ways. 1) A previous experiments indicate that the coupling of heating laser to imploded plasmas increases with coating a low-density. foam used in the experiment, low-Z plastic foam is desired for efficient electron transport. (Lei et al. 2006). 2) Electrons generated in the inner surface of the double cone will return by sheathe potential generated between two cones. A 2-D PIC simulation indicates that hot electron confinement is improved by a factor of 1.7 (Nakamura et al. 2007). Further optimization of cone geometry by 2-D simulation will be presented in the workshop. The implosion performance can be improved by three ways. 1) Low-Z plastic layer coating on the outer surface of the cone: The 2D hydro-simulation PINOCO predicts that the target areal density increases by a factor of 2. 2) Br doped plastic layer on a fuel pellet may significantly moderate the Rayleigh-Taylor instability (Fujioka et al. 2004), making implosion more stable. 3) Reducing vapor gas pressure in a pellet is necessary to suppress strength of a jet that will destroy the cone tip. (Stephens et al. 2005). As for the cryogenic target fabrication, R&D of fabricating foam cryogenic cine shell target are under development by the joint group between Osaka Univ. and NIFS. The amplifier system of the heating laser LFEX is completed in March 2008. The amplification test has demonstrated laser energy of 3 kJ/beam at 3nm bandwidth. The equivalent 12 kJ in 4 beams meets the specification of LFEX. The large tiled gratings for pulse compressor are completed and installed. The short pulse

  7. Status of the double beta experiment COBRA

    NASA Astrophysics Data System (ADS)

    Zuber, K.

    2006-07-01

    The COBRA experiment is going to use a large number of CdZnTe semiconductor detectors to perform a search for various double beta decay modes. The current status of the experiment is presented, as well as first results. A half-life measurement of the fourfold forbidden non-unique beta-decay of 113Cd has been performed. Improved half-life limits for the ground state transitions of 64Zn for 0νβ+/EC and 0νEC/EC have been obtained. A short outlook on future activities is given.

  8. The GERDA experiment: status and perspectives

    NASA Astrophysics Data System (ADS)

    Ur, C. A.; Gerda Collaboration

    2011-08-01

    The GERDA experiment is located in the underground Gran Sasso laboratory. The experiment aims at studying the neutrinoless ββ decay of 76Ge. The implementation of the experiment is divided in two consecutive phases. Phase I will allow within one year of data taking to reach a sensitivity limit for the half life of the process of the order of 2.5×10 years. Phase II, with an increased amount of active material and a background index lower by one order of magnitude than in Phase I, will allow to reach a half life limit of about 1.5×10 years. In the present paper a brief review of the status of the experiment and its perspectives is given.

  9. Status of the MAJORANA DEMONSTRATOR experiment

    SciTech Connect

    Martin, R. D.; Abgrall, N.; Aguayo, Estanislao; Avignone, F. T.; Barabash, Alexander S.; Bertrand, F.; Boswell, M.; Brudanin, V.; Busch, Matthew; Caldwell, A. S.; Chan, Yuen-Dat; Christofferson, Cabot-Ann; Combs, Dustin C.; Detwiler, Jason A.; Doe, P. J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, S.; Esterline, James H.; Fast, James E.; Finnerty, P.; Fraenkle, Florian; Galindo-Uribarri, A.; Giovanetti, G. K.; Goett, J.; Green, M.; Gruszko, J.; Guiseppe, Vincente; Gusev, K.; Hallin, A. L.; Hazama, R.; Hegai, A.; Henning, R.; Hoppe, Eric W.; Howard, Stanley; Howe, M. A.; Keeter, K.; Kidd, M. F.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaFerriere, Brian D.; Leon, Jonathan D.; Leviner, L.; Loach, J. C.; MacMullin, J.; MacMullin, S.; Mertens, S.; Mizouni, Leila; Nomachi, Masaharu; Orrell, John L.; O'Shaughnessy, Mark D.; Overman, Nicole R.; Phillips, David; Poon, Alan; Pushkin, K.; Radford, D. C.; Rielage, Keith; Robertson, R. G. H.; Romero-Romero, E.; Ronquest, M. C.; Schubert, Alexis G.; Shanks, B.; Shima, T.; Shirchenko, M.; Snavely, Kyle J.; Snyder, N.; Soin, Aleksandr; Suriano, Anne-Marie; Thompson, J.; Timkin, V.; Tornow, W.; Varner, R. L.; Vasilyev, Sergey; Vetter, Kai; Vorren, Kris R.; White, Brandon R.; Wilkerson, J. F.; Xu, W.; Yakushev, E.; Young, A.; Yu, Chang-Hong; Yumatov, Vladimir

    2014-07-08

    The MAJORANA DEMONSTRATOR neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given.

  10. Status of the MAJORANA DEMONSTRATOR experiment

    SciTech Connect

    Martin, R. D.; Abgrall, N.; Chan, Y-D.; Hegai, A.; Mertens, S.; Poon, A. W. P.; Vetter, K.; Aguayo, E.; Fast, J. E.; Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.; Overman, N. R.; Soin, A.; Avignone III, F. T.; Barabash, A. S.; Konovalov, S. I.; Yumatov, V.; Bertrand, F. E.; and others

    2014-06-24

    The MAJORANA DEMONSTRATOR neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given.

  11. Status of the Majorana Demonstrator experiment

    NASA Astrophysics Data System (ADS)

    Martin, R. D.; Abgrall, N.; Aguayo, E.; Avignone, F. T., III; Barabash, A. S.; Bertrand, F. E.; Boswell, M.; Brudanin, V.; Busch, M.; Caldwell, A. S.; Chan, Y.-D.; Christofferson, C. D.; Combs, D. C.; Detwiler, J. A.; Doe, P. J.; Efremenko, Yu.; Egorov, V.; Ejiri, H.; Elliott, S. R.; Esterline, J.; Fast, J. E.; Finnerty, P.; Fraenkle, F. M.; Galindo-Uribarri, A.; Giovanetti, G. K.; Goett, J.; Green, M. P.; Gruszko, J.; Guiseppe, V. E.; Gusev, K.; Hallin, A. L.; Hazama, R.; Hegai, A.; Henning, R.; Hoppe, E. W.; Howard, S.; Howe, M. A.; Keeter, K. J.; Kidd, M. F.; Kochetov, O.; Konovalov, S. I.; Kouzes, R. T.; LaFerriere, B. D.; Leon, J.; Leviner, L. E.; Loach, J. C.; MacMullin, J.; MacMullin, S.; Mertens, S.; Mizouni, L.; Nomachi, M.; Orrell, J. L.; O'Shaughnessy, C.; Overman, N. R.; Phillips, D. G., II; Poon, A. W. P.; Pushkin, K.; Radford, D. C.; Rielage, K.; Robertson, R. G. H.; Romero-Romero, E.; Ronquest, M. C.; Schubert, A. G.; Shanks, B.; Shima, T.; Shirchenko, M.; Snavely, K. J.; Snyder, N.; Soin, A.; Suriano, A. M.; Thompson, J.; Timkin, V.; Tornow, W.; Varner, R. L.; Vasilyev, S.; Vetter, K.; Vorren, K.; White, B. R.; Wilkerson, J. F.; Xu, W.; Yakushev, E.; Young, A. R.; Yu, C.-H.; Yumatov, V.

    2014-06-01

    The Majorana Demonstrator neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given.

  12. Present status of polarized solid targets

    SciTech Connect

    Meyer, W.

    1995-09-01

    The current situation of the polarized solid targets for their use in particle beams is briefly reviewed. This includes some general remarks on the latest polarized target experiments, a brief description of the dynamic nuclear polarization (DNP) principle and a review of the recent developments in the field of polarized target materials and techniques. {copyright} {ital 1995 American Institute of Physics.}

  13. PRESENT STATUS OF PLAGUE, WITH HISTORICAL REVIEW

    PubMed Central

    Kellogg, W. H.

    1920-01-01

    Health officers have known something of the early plague situation in California, but never before has the story been related in such stirring fashion as in this paper. It is an experience that, fortunately, seldom goes to such lengths. The necessity for strenuous extermination activities now against plague carriers is patent. PMID:18010389

  14. Ranger telerobotic shuttle experiment: a status report

    NASA Astrophysics Data System (ADS)

    Gefke, Gardell; Carignan, Craig R.; Roberts, Brian E.; Lane, J. Corde

    2002-02-01

    This paper presents an update on the Ranger Telerobotic Shuttle Experiment (RTSX) and associated key robotics technologies within the Ranger program. Ranger TSX will operate from a Spacelab logistics pallet inside the cargo bay of the shuttle and will demonstrate space station and on-orbit servicing operations including extravehicular (EVA) worksite setup, an orbital replacement unit (ORU) exchange, and various task board experiments. The flight system will be teleoperated from the middeck inside the shuttle as well as from a ground control station at NASA Johnson Space Center. This paper addresses the technical and programmatic status of the flight experiment and describes progress on the engineering test unit, Ranger Neutral Buoyancy Vehicle II (RNBVII), currently in fabrication. Also described are associated technologies, which support this effort. These include a flight robot mockup built to practice EVA stowage and Ranger NBV I, a free-flight prototype vehicle.

  15. Present Status of the Siam Photon Laboratory

    SciTech Connect

    Songsiriritthigul, P.; Klysubun, P.; Duangnil, S.; Pairsuwan, W.

    2010-06-23

    The Siam Photon Source has continuously been upgraded to improve its performance. The energy of stored electrons has been increased from 1.0 GeV to 1.2 GeV. The beam lifetime has been increased greatly to 23 hours at 100 mA, comparing to its designed value of 6 hours. The development of the light source has focused on the preparation work for the production of hard X-rays from a superconducting magnet wiggler. More beamlines have been designed and are under constructions. An existing beamline for photoemission beamline (BL4) has been modified to cover wider spectral range of undulator radiation. Three more X-ray beamlines are being built for XAS, PX and SAXS/WAXS experiments. An IR microspectroscopy is also under construction.

  16. Present status of the ALTO project

    SciTech Connect

    Verney, D.

    2007-05-22

    The Institute of Nuclear Physics of Orsay has built in the Tandem building an ISOL device based on photofission induced by a 50-MeV electron-beam : ALTO (Accelerateur Lineaire aupres du Tandem d'Orsay). The project has been dimensioned to obtain 1011 fissions/s inside an UCx target. The objective of this facility is twofold: ensure the development of the physics with beams at extraction-energy of fission products and to serve as a test bench for certain aspects of the R and D for the SPIRAL2 project. The first electron beam has been extracted from the LINAC in december 2005 and a UCx-target/ion-source ensemble has been irradiated for the first time in june 2006. The effective yields of the non-refractory fission fragments after extraction and mass separation have been measured during this experiment and are similar to the calculated predictions.

  17. The Transuranium Elements - Present Status: Nobel Lecture

    DOE R&D Accomplishments Database

    Seaborg, G. T.

    1951-12-12

    The discovery of the transuranium elements and the work done on them up to the present time are reviewed. The properties of these elements, their relationship to other elements, their place in the periodic table, and the possibility of production and identification of other transuranium elements are discussed briefly.

  18. Diagnosis of coronary microvascular dysfunction - Present status.

    PubMed

    Mittal, S R

    2015-01-01

    Definite clinical diagnosis of microvascular angina is not possible with the existing knowledge. Resting electrocardiogram may be normal, and exercise electrocardiogram may be unremarkable. Echocardiography usually does not show regional wall motion abnormalities. Transthoracic Doppler echocardiography can satisfactorily evaluate only left anterior descending coronary artery and that too in some patients. Radio-isotope imaging can detect only severe localized disease. Noninvasive diagnosis needs high index of suspicion. At present, definite diagnosis is based on documentation of normal epicardial coronaries, coronary flow reserve less than 2.5 on adenosine induced hyperemia, and absence of spasm of epicardial coronaries on acetylcholine provocation. Invasive evaluation is costly, needs sophisticated equipments and expertise. Therapeutic and prognostic implications of various parameters remains to be evaluated. At present invasive evaluation is recommended only for patients with intractable symptoms with unconfirmed diagnosis, requiring repeated hospitalization and evaluation with failure of empirical therapy. PMID:26702685

  19. Present Status and Future of DCC Analysis

    SciTech Connect

    Nayak, T. K.; Awes, Terry C; Plasil, F; Stankus, Paul W; Young, Glenn R; WA98, Collaboration

    1998-08-01

    Disoriented Chiral Condensates (DCC) have been predicted to form in high energy heavy ion collisions where the approximate chiral symmetry of QCD has been restored. This leads to large imbalances in the production of charged to neutral pions. Sophisticated analysis methods are being developed to disentangle DCC events out of the large background of events with conventionally produced particles. We present a short review of current analysis methods and future prospects.

  20. Status and perspectives of the MEG experiment

    NASA Astrophysics Data System (ADS)

    Cei, Fabrizio

    2016-04-01

    We present the status and the perspectives of the MEG experiment which has been searching for the Lepton Flavour Violating decay μ+ → e+γ for several years. In a dataset corresponding to 3.6 × 1014 positive muons stopped on target we didn't find any evidence for this decay and established an upper bound on the μ+ → e+γ branching ratio of 5.7 × 10-13 at 90% C.L., with a sensitivity of 7.7 × 10-13, which improves our world best limit by a factor of 4 and the best previous limit by a factor of 20. Our final dataset is about twice as large than the analyzed sample and the expected final sensitivity of the experiment is ˜ 5 × 10-13. We also discuss the status of the upgrade of the experiment (MEGII) which aims to improve the sensitivity by a further order of magnitude.

  1. Present Status of KEK Isotope Separation System

    NASA Astrophysics Data System (ADS)

    Hirayama, Y.; Jeong, S. C.; Watanabe, Y. X.; Imai, N.; Ishiyama, H.; Miyatake, H.; Oyaizu, M.; Kim, Y. H.; Mukai, M.; Sonoda, T.; Wada, M.; Huyse, M.; Kudryavtsev, Yu.; Van Duppen, P.

    2014-03-01

    KISS (KEK Isotope Separation System) has been constructed at Nishina Re-search Center (NRC) of RIKEN to study the decay properties of heavy neutron-rich iso-topes with mass number around A˜200 along the neutron magic number of N = 126 for the astrophysical interest. The isotopes of interest will be produced by multi-nucleon transfer reactions in neutron-rich heavy ion collisions (e.g. 136Xe projectile on 198Pt target). KISS consists of a gas-cell system for thermalizing (stopping and neutralizing) and fast-transporting reaction products to the gas cell exit hole, a laser system for the res-onant ionization, and a mass-separator system followed by a detection system for the decay spectroscopy. KISS will allow us to study unknown isotopes produced in weak re-action channels under low background conditions. The off-line test of the KISS has been finished. As a next step, on-line test experiments have been performed to investigate the overall efficiency and selectivity of the system as a function of the injected 56Fe beam intensity from the RIKEN Ring Cyclotron (RRC).

  2. Transgenic fish: present status and future directions.

    PubMed

    Hew, C L

    1989-06-01

    Successful production of transgenic fish by gene transfer technology is a very important breakthrough in the techniques of genetic manipulation in animals. This will have an impact of an unprecedented scale in fish biology, aquaculture and mariculture. This is a summary of the workshop on the Transgenic Fish presented at this Symposium. The Workshop discussed the current knowledge, experimental difficulties and related topics of the transgenic fish. It recommended further research on better gene constructs, methods development, safety containment and the closer collaboration of researchers of different disciplines. PMID:24221801

  3. Satellite Ocean Color: Present Status, Future Challenges

    NASA Technical Reports Server (NTRS)

    Gregg, Watson W.; McClain, Charles R.; Zukor, Dorothy J. (Technical Monitor)

    2001-01-01

    We are midway into our 5th consecutive year of nearly continuous, high quality ocean color observations from space. The Ocean Color and Temperature Scanner/Polarization and Directionality of the Earth's Reflectances (OCTS/POLDER: Nov. 1996 - Jun. 1997), the Sea-viewing Wide Field-of-view Sensor (SeaWiFS: Sep. 1997 - present), and now the Moderate Resolution Imaging Spectrometer (MODIS: Sep. 2000 - present) have and are providing unprecedented views of chlorophyll dynamics on global scales. Global synoptic views of ocean chlorophyll were once a fantasy for ocean color scientists. It took nearly the entire 8-year lifetime of limited Coastal Zone Color Scanner (CZCS) observations to compile seasonal climatologies. Now SeaWIFS produces comparably complete fields in about 8 days. For the first time, scientists may observe spatial and temporal variability never before seen in a synoptic context. Even more exciting, we are beginning to plausibly ask questions of interannual variability. We stand at the beginning of long-time time series of ocean color, from which we may begin to ask questions of interdecadal variability and climate change. These are the scientific questions being addressed by users of the 18-year Advanced Very High Resolution Radiometer time series with respect to terrestrial processes and ocean temperatures. The nearly 5-year time series of ocean color observations now being constructed, with possibilities of continued observations, can put us at comparable standing with our terrestrial and physical oceanographic colleagues, and enable us to understand how ocean biological processes contribute to, and are affected by global climate change.

  4. Status of the PAPPA experiment

    NASA Technical Reports Server (NTRS)

    Kogut, Alan

    2006-01-01

    The Primordial Anisotropy Polarization Pathfinder Array (PAPPA) is a balloonborne instrument to measure the polarization of the cosmic microwave background and search for the signature of primordial gravity waves. PAPPA uses a novel marriage of RF phase modulation and millimeter-wave bolometric detectors to produce a "polarimeter-on-a-chip" capable of simultaneously measuring the Stokes I, Q, and U parameters on the sky. I will discuss the current status and future plans for PAPPA.

  5. Status and Perspectives of the COBRA Experiment

    NASA Astrophysics Data System (ADS)

    Wonsak, Björn

    COBRA is a neutrinoless double beta decay (0νββ) experiment using an array of Cadmium-Zinc-Telluride semiconductor detectors, the isotope of interest being 116Cd with a Q-value of 2814 keV. To investigate the experimental challenges of operating CdZnTe detectors in low background mode and to identify potential background components, a demonstrator setup is operated at the Gran Sasso underground laboratory (LNGS) in Italy, while additional studies are proceeding in surface laboratories. The experiment consists of monolithic, calorimetric detectors of coplanar grid design (CPG de- tectors). These detectors have a size of 1×1×1 cm3 and are arranged in four layers of 4×4 detectors. An overview of the current status and of future perspectives is given. Results of pulse shape analyses are presented as well as background estimates using the data collected so far.

  6. Status of the KATRIN Neutrino Mass Experiment

    NASA Astrophysics Data System (ADS)

    Parno, Diana; Katrin Collaboration

    2015-04-01

    The Karlsruhe Tritium Neutrino experiment (KATRIN), presently under construction in Germany, will probe the absolute mass scale of the neutrino through the kinematics of tritium beta decay, a nearly model-independent approach. To achieve the projected sensitivity of 0.2 eV at the 90% confidence level, KATRIN will use a windowless, gaseous tritium source and a large magnetic adiabatic collimation-electrostatic filter. The collaboration has now completed a second commissioning phase of the spectrometer and detector section, and construction of the tritium sections is proceeding well. We will report on the current status of the experiment and the outlook for data-taking with tritium. US participation in KATRIN is supported by the U.S. Department of Energy Office of Science, Office of Nuclear Physics under Award Number DE-FG02-97ER41020.

  7. Primary energy: Present status and future perspectives

    NASA Astrophysics Data System (ADS)

    Thielheim, K. O.

    A survey of the base-load energy sources available to humans is presented, starting from the point of view that all energy used is ultimately derived from nuclear processes within the sun. Specific note is made of European energy options, noting the large dependence on imported oil. Detailed exploration of available nuclear fuel resources is carried out, with attention given to fission, fusion, and breeder reactor plants and to the state-of-the-art and technology for each. The problems of nuclear waste disposal are discussed, and long term burial in salt domes is outlined as a satisfactory method of containing the materials for acceptable periods of time. The CO2-greenhouse effect hazards caused by increased usage of coal-derived fuels are considered and precautions to be taken on a global scale to ameliorate the warming effects are recommended. The limitations to hydropower are examined, as are those of tidal power. Solar cells are projected to be produced in GW quantities by the year 2000, while wind-derived electricity is predicted to provide a minimum of 5% of the world energy needs in the future.

  8. Present Status of GNF New Nodal Simulator

    SciTech Connect

    Iwamoto, T.; Tamitani, M.; Moore, B.

    2001-06-17

    This paper presents core simulator consolidation work done at Global Nuclear Fuel (GNF). The unified simulator needs to supercede the capabilities of past simulator packages from the original GNF partners: GE, Hitachi, and Toshiba. At the same time, an effort is being made to produce a simulation package that will be a state-of-the-art analysis tool when released, in terms of the physics solution methodology and functionality. The core simulator will be capable and qualified for (a) high-energy cycles in the U.S. markets, (b) mixed-oxide (MOX) introduction in Japan, and (c) high-power density plants in Europe, etc. The unification of the lattice physics code is also in progress based on a transport model with collision probability methods. The AETNA core simulator is built upon the PANAC11 software base. The goal is to essentially replace the 1.5-energy-group model with a higher-order multigroup nonlinear nodal solution capable of the required modeling fidelity, while keeping highly automated library generation as well as functionality. All required interfaces to PANAC11 will be preserved, which minimizes the impact on users and process automation. Preliminary results show statistical accuracy improvement over the 1.5-group model.

  9. The present status of trichinellosis in Thailand.

    PubMed

    Khamboonruang, C

    1991-12-01

    The epidemiology of trichinellosis in northern Thailand may be unique. Since 1962, outbreaks of the disease have occurred almost every year. The Department of Communicable Disease Control, Ministry of Public Health reported 118 discrete outbreaks of the disease, involving 5,400 patients, 95 of whom have died. Epidemiological investigations reveal that the outbreaks have occurred mostly in rural areas, associated with villagers celebrating local and traditional festivals such as the northern Thai New Year, wedding ceremonies, or other festive occasions. In almost all cases the source of infection has been traced to either hilltribe pigs, which are raised like wild animals, or to meat from wild boar. Infection is usually acquired through consumption of a local dish called "lahb," traditionally served during these festivities. This popular dish consists of raw finely chopped meat mixed with spices and chilies and is served nearly raw. Common clinical symptoms of trichinellosis in northern Thailand are fever and myalgia, presenting about two weeks after ingestion of raw meat containing encysted Trichinella larvae. Based on its infectivity for rats and pigs and on alloenzyme typing, the species appears to be Trichinella spiralis. The transmission cycle of trichinellosis in northern Thailand is primarily of a sylvatic type. Hilltribe pigs, wild boars, black bear and jackal are common reservoirs. Man intrudes into the cycle by eating the raw or under-cooked meat of these animals. PMID:1822914

  10. Status of the QPS Experiment

    NASA Astrophysics Data System (ADS)

    Lyon, J. F.

    2005-10-01

    The Quasi-Poloidal Stellarator (QPS) is a very-low-aspect-ratio compact stellarator with R/a˜ 2.7, 1/4--1/2 that of existing stellarators. The dominant magnetic field components are poloidally symmetric in flux coordinates, which allows large E x B poloidal flows for direct suppression of anomalous transport. Nine independent coil currents allow varying neoclassical transport by ˜25, degree of poloidal symmetry by ˜10, and poloidal viscosity by ˜20 for study of anomalous and neoclassical transport, stability limits at beta ˜5%, and equilibrium robustness. Physics studies focus on evaluations of viscosities and neoclassical transport coefficients, momentum transport and flow damping, impact of bootstrap current on equilibrium and stability, global ballooning stability, minimization of magnetic islands, measures of poloidal symmetry deviation, and control of the plasma and neutral densities. The experiment has R = 0.95 m, a = 0.3--0.4 m, B = 1 T for a 1.5-s pulse, and P(heating) = 3--5 MW. An R&D program is underway that includes conductor testing, an improved cooling concept, potting with cyanate ester resin, vacuum canning, and fabrication of a full-scale prototype modular coil. The most complex of the modular coil winding forms has been cast and is undergoing machining prior to coil winding. Recent progress, relationship to other stellarator concepts, project schedule, and proposed experimental program are presented.

  11. Status of the Picasso Experiment

    NASA Astrophysics Data System (ADS)

    Wichoski, Ubi

    2012-08-01

    The PICASSO experiment searches for cold dark matter through the direct detection of weakly interacting massive particles (WIMPs) via their spin-dependent interactions with fluorine at SNOLAB, Sudbury - ON, Canada. The detection principle is based on the superheated droplet technique; the detectors consist of a gel matrix with millions of liquid droplets of superheated fluorocarbon (C4F10) dispersed in it. The experiment has been taking data using 4.5-litre detector modules with approximately 80g of active mass per module. In this talk we will give an overview of the experiment, discuss the progress on the understanding of the superheated droplet technique and report on recent developments and future plans.

  12. NOνA neutrino experiment status

    NASA Astrophysics Data System (ADS)

    Jediný, Filip

    2014-03-01

    The primary goal of the NOνA neutrino oscillation experiment is to study the probabilities of transformation of muonic-neutrinos into electron-neutrinos. The experiment is currently under construction and will use a 700 kW accelerator-based NuMI beam (Neutrinos at the Main Injector) and two detectors. The Near Detector (329 t at Fermi National Accelerator Laboratory, Illinois) and the Far Detector (14 kt, Ash River, Minnesota) are aligned to 14 mrad off-axis and separated by 810 km. They are made of active liquid scintillator and readout by avalanche photo-diodes. Recent results from world-wide neutrino experiments indicate that NOνA is in the position to determine the neutrino mass hierarchy as it is also searching for the first hints of CP violation in neutrino sector. The design, the goals and the current status of the NOνA experiment are presented here with the current estimates of its sensitivity to the mass hierarchy measurement.

  13. Status of the neutrino mass experiment KATRIN

    SciTech Connect

    Bornschein, L.; Bornschein, B.; Sturm, M.; Roellig, M.; Priester, F.

    2015-03-15

    The most sensitive way to determine the neutrino mass scale without further assumptions is to measure the shape of a tritium beta spectrum near its kinematic end-point. Tritium is the nucleus of choice because of its low endpoint energy, superallowed decay and simple atomic structure. Within an international collaboration the Karlsruhe Tritium Neutrino experiment (KATRIN) is currently being built up at KIT. KATRIN will allow a model-independent measurement of the neutrino mass scale with an expected sensitivity of 0.2 eV/c{sup 2} (90% CL). KATRIN will use a source of ultrapure molecular tritium. This contribution presents the status of the KATRIN experiment, thereby focusing on its Calibration and Monitoring System (CMS), which is the last component being subject to research/development. After a brief overview of the KATRIN experiment in Section II the CMS is introduced in Section III. In Section IV the Beta Induced X-Ray Spectroscopy (BIXS) as method of choice to monitor the tritium activity of the KATRIN source is described and first results are presented.

  14. Status of the SNO+ Experiment

    NASA Astrophysics Data System (ADS)

    Grullon, Sean

    2015-03-01

    The SNO+ experiment is the follow-up to the Sudbury Neutrino Observatory (SNO). The heavy water that was in SNO will be replaced with a liquid scintillator of linear alkylbenzene. The primary physics goal is the search for neutrinoless double beta decay of 130Te by loading 0.3% of natural Te into the liquid scintillator. The broader physics program of SNO+ will also include measuring the pep and CNO solar neutrino flux, detecting geo-neutrinos, studying reactor neutrino oscillations, and serving as a supernova neutrino detector. We summarize the SNO+ physics program and the timeline for commissioning.

  15. Status of the RENO Reactor Neutrino Experiment

    NASA Astrophysics Data System (ADS)

    Joo, K. K.; RENO Collaboration

    2012-08-01

    The Reactor Experiment for Neutrino Oscillation (RENO) is a reactor based neutrino oscillation experiment to measure the neutrino mixing angle θ13 using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. Its thermal power output is 16.4 Gwth. The experimental setup consists of two identical 16-ton gadolinium-loaded liquid scintillator detectors. The near and far detectors are placed roughly 290 m and 1.4 km from the center of the reactor array, respectively. The near detector is constructed at underground of a 70 m high hill and the far detector at underground of a 260 m high mountain. The construction of experimental halls and access tunnels for both near and far detector sites was completed in early 2009. The experiment is planned to start data-taking from early 2011. An expected number of observed anti-neutrinos is roughly 1300 per day and 100 per day in the far and near detector, respectively. We expect that an estimated systematic uncertainty is less than 0.5%. With three years of data taken, RENO is sensitive to measure sin2(2θ13)>0.02. Sensitivity is ten times better than the current limit obtained by Chooz. In this review, current status of RENO is presented.

  16. Status of the OPERA experiment

    SciTech Connect

    Russo, A.

    2011-11-23

    The OPERA experiment in the underground Gran Sasso Laboratory (LNGS) has been designed to perform the first detection of neutrino oscillations in direct appearance mode in the muon to tau neutrino channel. The detector is hybrid, being made of an emulsion/lead target and of electronic detectors. It is placed in the CNGS neutrino beam 733 km away from the neutrino source. Runs with CNGS neutrinos were successfully carried out from 2008 and the following years. The analysis of a sample of events corresponding to 1.89x10{sup 19} p.o.t. in the CERN CNGS {nu}{sub {mu}} beam yielded the observation of a first candidate {nu}{sub {tau}} CC interaction. The topology and kinematics of this candidate event is described in detail. The background sources are explained and the significance of the observation of the first {nu}{sub {tau}} event candidate is assessed.

  17. Mars SEIS Experiment : Development Status

    NASA Astrophysics Data System (ADS)

    Schibler, P.; Mimoun, D.; Lognonne, P.; Giardini, D.; Pike, W. T.; Banerdt, B.

    2006-12-01

    The objective of the Mars SEIS experiment is the determination of the deep internal structure of Mars. In particular, geophysical parameters of first importance, such as the state (liquid/solid) and size of the core, as far as structure of the mantle and shape of discontinuities will be determined by the experience. The instrument integrates a Very Broad Band two axis seismometer, completed by a third axis short period seismometer, and environmental sensors for pressure, infrasounds and temperature. The sensors measure signals in an ultra-broad band, from the tidal frequencies (0.05 mHz) up to the short period frequencies (50 Hz). Long term VBB bias will be actively decorrelated from temperature and pressure variations, allowing the sensor to operate in a thermal environment with daily variations of about 40 °K. Infrasounds, which might be associated to dust devils and atmospheric discharge, will be also monitored. The overall mass of the SEIS instrument is under 2 kg, including all sensors, data control processors and installation devices. Acquisition will be performed by a series of 24 bits A/D converters, while the thermal and drift control will be performed by a feedback generated by a 24 bits D/A converter. We are currently at the end of the B phase, with a breadboard of the VBB axis already delivered by industry (EADS-Sodern). Most critical parts have been tested, including shock tests (200g, 20 ms) for pivot, electronics components and displacement sensors. The electronics breadboard has also been delivered and was under extensive performance tests at ETH facilities. The Sphere (phase B Breadboard), including the two VBB axis, has been delivered by industry (EADS-Sodern). Structural and Thermal Model (STM) of Sphere has been delivered at the end of 2005. Full seismic calibration and environmental tests are planned in 2007. Preliminary and functional results are satisfying and noise optimization is under process. Preliminary noise results are encouraging

  18. Philae (Rosetta Lander): Experiment status after commissioning

    NASA Astrophysics Data System (ADS)

    Biele, J.; Willnecker, R.; Bibring, J. P.; Rosenbauer, H.

    Provided that the launch on 26 February 2004 was successful, ESA's cornerstone mission "ROSETTA" (originally planned to be launched in January 2003 to comet Wirtanen) is en route to bring the 100 kg Lander "PHILAE" with a scientific payload of about 27 kg to the surface of comet 67P/Churyumov-Gerasimenko. After a first scientific sequence in 2014 it will operate for a considerable fraction of the cometary orbit around the sun (between 3 AU and 2 AU). The Lander is an autonomous spacecraft, powered with solar cells and using the ROSETTA Orbiter as a telemetry relais to Earth. The main scientific objectives are the in-situ investigation of the chemical, elemental, isotopic and mineralogical composition of the comet, study of the physical properties of the surface material, analyze the internal structure of the nucleus, observe temporal variations (day/night cycle, approach to sun), study the relationship between the comet and the interplanetary matter and provide ground truth data for Orbiter instruments. Ten experiments with a number of sub-experiments are foreseen to fulfil these objectives. The Lander is operated (via ESOC) by the Lander Control Centre (LCC) at DLR and the Science Operations and Navigation Centre (SONC) at CNES. In this paper we present the flight status of the scientific instruments as it is known after the main part of in-orbit commissioning

  19. Philae (Rosetta Lander): Experiment status after commissioning

    NASA Astrophysics Data System (ADS)

    Biele, J.; Willnecker, R.; Bibring, J. P.; Rosenbauer, H.; Philae Team

    2006-01-01

    Being successfully launched on March 2, 2004, ESA's cornerstone mission "ROSETTA" (originally planned to be launched in January 2003 to comet Wirtanen) is en route. It will also bring the 100 kg Lander "Philae" with a scientific payload of 26.7 kg to the surface of comet 67P/Churyumov-Gerasimenko. After a first scientific sequence in 2014 it will operate for a considerable fraction of the cometary orbit around the sun (between 3 AU and at least 2 AU). The Lander, after separation, is an autonomous spacecraft powered with solar cells and using the ROSETTA Orbiter as a telemetry relais to Earth. The main scientific objectives are the in situ investigation of the chemical, elemental, isotopic and mineralogical composition of the comet, study of the physical properties of the surface material, analyze the internal structure of the nucleus, observe temporal variations (day/night cycle, approach to sun), study the relationship between the comet and the interplanetary matter and provide ground truth data for the Orbiter instruments. Ten experiments with a number of sub-experiments are foreseen to fulfil these objectives. Philae is operated (via ESOC) by the Lander Control Centre (LCC) at DLR and the Science Operations and Navigation Centre (SONC) at CNES. In this paper we present the flight status of the scientific instruments as it is known after in-orbit commissioning.

  20. Occupational Status and the Experience of Anger

    ERIC Educational Resources Information Center

    Collett, Jessica L.; Lizardo, Omar

    2010-01-01

    Current theories in the sociology of emotions posit contradictory expectations regarding the relationship between status and the relative experience of anger, with some predicting a negative relationship and others proposing a positive one. We test the compatibility of these opposing hypotheses by examining the relationship between anger and a key…

  1. Status of the MANX muon cooling experiment

    SciTech Connect

    Yonehara, K.; Broemmelsiek, D.; Hu, M.; Jansson, A.; Kashikhin, V.S.; Kashikhin, V.V.; Lamm, M.; Lopes, M.; Shiltsev, V.; Yarba, V.; Yu, M.; /Fermilab /Muons Inc., Batavia

    2008-06-01

    A demonstration experiment of six-dimensional (6D) phase space muon beam cooling is a key milestone on the roadmap toward to a real muon collider. In order to achieve this goal, they have designed the Muon Collider and Neutrino Factory Experiment (MANX) channel, which consists of the Helical Cooling Channel (HCC). They discuss the status of the simulation study of the MANX in this document.

  2. Status Cataplecticus as Initial Presentation of Late Onset Narcolepsy

    PubMed Central

    Panda, Samhita

    2014-01-01

    Narcolepsy, one of the important causes of hypersomnia, is an under diagnosed sleep disorder. It has a bimodal age of onset around 15 and 35 years. It is characterized by the tetrad of excessive daytime sleepiness, cataplexy, hypnagogic/ hypnopompic hallucinations, and sleep paralysis. Cataplexy is by far the most predictive feature of narcolepsy. Status cataplecticus is the occurrence of cataplexy repeatedly for hours or days, a rare presentation of narcolepsy. This report describes an elderly gentleman with late onset narcolepsy in the sixth decade of life presenting with initial and chief symptom of status cataplecticus. Citation: Panda S. Status cataplecticus as initial presentation of late onset narcolepsy. J Clin Sleep Med 2014;10(2):207-209. PMID:24533005

  3. Status of the TOTEM experiment at LHC

    NASA Astrophysics Data System (ADS)

    Baechler, J.; Antchev, G.; Aspell, P.; Atanassov, I.; Avati, V.; Berardi, V.; Berretti, M.; Bossini, E.; Bozzo, M.; Brogi, P.; Brücken, E.; Buzzo, A.; Cafagna, F.; Calicchio, M.; Catanesi, M. G.; Covault, C.; Csörgő, T.; Deile, M.; Eggert, K.; Eremin, V.; Ferretti, R.; Ferro, F.; Fiergolski, A.; Garcia, F.; Giani, S.; Greco, V.; Grzanka, L.; Heino, J.; Hilden, T.; Intonti, M. R.; Kašpar, J.; Kopal, J.; Kundrát, V.; Kurvinen, K.; Lami, S.; Latino, G.; Lauhakangas, R.; Leszko, T.; Lippmaa, E.; Lokajíček, M.; Lo Vetere, M.; Lucas Rodríguez, F.; Macrí, M.; Magaletti, L.; Mercadante, A.; Minafra, N.; Minutoli, S.; Nemes, F.; Niewiadomski, H.; Oliveri, E.; Oljemark, F.; Orava, R.; Oriunno, M.; Österberg, K.; Palazzi, P.; Procházka, J.; Quinto, M.; Radermacher, E.; Radicioni, E.; Ravotti, F.; Robutti, E.; Ropelewski, L.; Ruggiero, G.; Saarikko, H.; Sanguinetti, G.; Santroni, A.; Scribano, A.; Snoeys, W.; Sziklai, J.; Taylor, C.; Turini, N.; Vacek, V.; Vítek, M.; Welti, J.; Whitmore, J.

    2013-08-01

    The TOTEM experiment is dedicated to the measurement of the total proton-proton cross-section with the luminosity-independent method and the study of elastic and diffractive scattering processes. Two tracking telescopes, T1 and T2, integrated in the CMS detector, cover the pseudo-rapidity region between 3.1 and 6.5 on both sides of the interaction point IP5. The Roman Pot (RP) stations are located at distances of ±147 m and ±220 m with respect to the interaction point to measure the very forward scattered protons at very small angles. During the LHC technical stop in winter 2010/2011, the TOTEM experiment was completed with the installation of the T1 telescope and the RP stations at ±147 m. In 2011, the LHC machine provided special optics with the large ß*=90 m, allowing TOTEM to measure the elastic scattering differential cross-section, down to the four-momentum transfer squared |t|=2×10-2 GeV2. Using the optical theorem and extrapolation of the differential cross-section to t=0 (optical point), the total p-p cross-section at the LHC energy of √{ s} = 7 TeV could be computed for the first time. Furthermore we measured with standard LHC beam optics and the energy of √{ s} = 7 TeV the forward charged particle pseudorapidity density dn/dη in the range of 5.3<|η|<6.4. The status of the experiment, the performance of the detectors with emphasis on the RPs are described and the first physics results are presented.

  4. Status cataplecticus as initial presentation of late onset narcolepsy.

    PubMed

    Panda, Samhita

    2014-02-15

    Narcolepsy, one of the important causes of hypersomnia, is an under diagnosed sleep disorder. It has a bimodal age of onset around 15 and 35 years. It is characterized by the tetrad of excessive daytime sleepiness, cataplexy, hypnagogic/ hypnopompic hallucinations, and sleep paralysis. Cataplexy is by far the most predictive feature of narcolepsy. Status cataplecticus is the occurrence of cataplexy repeatedly for hours or days, a rare presentation of narcolepsy. This report describes an elderly gentleman with late onset narcolepsy in the sixth decade of life presenting with initial and chief symptom of status cataplecticus. PMID:24533005

  5. Dengue vector control: present status and future prospects.

    PubMed

    Yap, H H; Chong, N L; Foo, A E; Lee, C Y

    1994-12-01

    Dengue Fever (DF) and Dengue Haemorrhagic Fever (DHF) have been the most common urban diseases in Southeast Asia since the 1950s. More recently, the diseases have spread to Central and South America and are now considered as worldwide diseases. Both Aedes aegypti and Aedes albopictus are involved in the transmission of DF/DHF in Southeast Asian region. The paper discusses the present status and future prospects of Aedes control with reference to the Malaysian experience. Vector control approaches which include source reduction and environmental management, larviciding with the use of chemicals (synthetic insecticides and insect growth regulators and microbial insecticide), and adulticiding which include personal protection measures (household insecticide products and repellents) for long-term control and space spray (both thermal fogging and ultra low volume sprays) as short-term epidemic measures are discussed. The potential incorporation of IGRs and Bacillus thuringiensis-14 (Bti) as larvicides in addition to insecticides (temephos) is discussed. The advantages of using water-based spray over the oil-based (diesel) spray and the use of spray formulation which provide both larvicidal and adulticidal effects that would consequently have greater impact on the overall vector and disease control in DF/DHF are highlighted. PMID:7844836

  6. Nova power systems: status and operating experience

    SciTech Connect

    Whitham, K.; Merritt, B.T.; Gritton, D.G.; Smart, A.J.; Holloway, R.W.; Oicles, J.A.

    1983-11-28

    This paper describes the pulse power systems that are used in these lasers; the status and the operating experiences. The pulsed power system for the Nova Laser is comprised of several distinct technology areas. The large capacitor banks for driving flashlamps that excite the laser glass is one area, the fast pulsers that drive pockels cell shutters is another area, and the contol system for the pulsed power is a third. This paper discusses the capacitor banks and control systems.

  7. Status of the NA62 Experiment

    NASA Astrophysics Data System (ADS)

    Palladino, Vito

    2016-04-01

    The rare decays {{{K}}^ + } to {π ^ + }{{ν bar ν }} are excellent processes to make tests of new physics at the highest scale complementary to LHC thanks to their theoretically cleaness. The NA62 experiment at CERN SPS aims to collect of the order of 100 events in two years of data taking, keeping the background at the level of 10%. Part of the experimental apparatus has been commissioned during a technical run in 2012. The physics prospects and the status of the experiment will be reviewed after the commissioning run of 2014 and the data taking in 2015.

  8. The CBM experiment-a status report

    SciTech Connect

    Friese, V.

    2012-05-15

    The CBM experiment is being designed to study strongly interacting matter at high densities with nuclear collisions up to 45 A GeV beam energy at the future FAIR centre. With interaction rates unprecedented in heavy-ion collisions, CBM will give access also to extremely rare probes and thus to the early stage of the collisions, in search for the first-order phase transition from confined to deconfined matter and the QCD critical point. The conceptual design of the experiment is consolidated, and the project has entered the R and D and technical design phase. We report on the project status, putting enphasis on recent progress and developments.

  9. The MEG experiment at PSI: status and prospects

    SciTech Connect

    Signorelli, Giovanni

    2006-07-11

    The present status of the MEG experiment at PST is reviewed. This experiment aims at measuring the branching ratio of the lepton flavor violating process {mu}+ {yields} e+{gamma} with a sensitivity two orders of magnitude below the present experimental limit, set to 1.2 x 10 -11 by the MEGA experiment. The positron momentum will be measured by a set of drift chambers inside a non-homogeneous magnetic field while the photon four-momentum will be measured by an innovative homogeneous liquid xenon scintillation calorimeter. The experiment is now in an advanced construction stage and it is scheduled to start engineering runs during the year 2006.

  10. Status of the COBRA double beta decay experiment

    NASA Astrophysics Data System (ADS)

    Janutta, B.; Cobra Collaboration

    2011-08-01

    COBRA is an R&D project, using CdZnTe (CZT) semiconductor detectors to search for the 0νββ decay. CZT is a room temperature semiconductor detector with good energy resolution. The experiment is located at the Laboratori Nazionali del Gran Sasso (LNGS). In addition to pure energy measurements, pixelated detectors allow for tracking, further reducing the background significantly. The current status of the experiment is presented, including the latest analysis results.

  11. The status of the Storage Ring EDM experiment

    SciTech Connect

    Semertzidis, Yannis K.

    2009-12-17

    The status of the storage ring experiment capable of probing the proton and deuteron EDM at the 10{sup -29} e.cm level is presented here. At this level it will be sensitive to a new physics mass scale of {approx}300 TeV. If there is new physics at the LHC, it will be sensitive to 10{mu}rad CP-violating phase level making it the most sensitive experiment for CP-violation beyond the SM.

  12. Status and Prospects for Hadron Production Experiments

    SciTech Connect

    Schroeter, Raphaeel

    2010-03-30

    The latest results from the HARP, MIPP and NA61 Hadron Production Experiments are reviewed and their implications for neutrinos physics experiments are discussed. We emphasize three neutrino sources: accelerator-based neutrino beams, advanced neutrino sources and atmospheric neutrinos. Finally, prospects from additional forthcoming hadron production measurements are presented.

  13. Present Status of Nuclear Data for Nuclear Nonproliferation

    NASA Astrophysics Data System (ADS)

    Igashira, M.

    2015-10-01

    The present status of nuclear data was reviewed from the viewpoint of the research and development of non-destructive inspection methods for international controlled materials such as 235U, 239Pu, 241Pu, D2O, 6LiD, and 9Be. The nuclear characteristics of these materials were discussed, and neutron- and photon-reaction cross section data were reviewed. It was found that the accuracy of neutron data was enough for the research and development but that of photon data was not enough.

  14. Overview of the present status and challenges of neutrino oscillation physics

    SciTech Connect

    Mocioiu, Irina

    2012-11-20

    This is an overview of the current status of neutrino oscillation physics, including atmospheric, solar, reactor and accelerator neutrino experiments. After summarizing our present understanding of all data, I discuss the open questions and how they might be addressed in the future. I also discuss how neutrinos can be used to learn about new physics and astrophysics.

  15. TOPICAL REVIEW: θ13: phenomenology, present status and prospect

    NASA Astrophysics Data System (ADS)

    Mezzetto, Mauro; Schwetz, Thomas

    2010-10-01

    The leptonic mixing angle θ13 is currently a high-priority topic in the field of neutrino physics, with five experiments under way, searching for neutrino oscillations induced by this angle. We review the phenomenology of θ13 and discuss the information from the present global oscillation data. A description of the upcoming reactor and accelerator experiments searching for a non-zero value of θ13 is given, and we evaluate the sensitivity reach within the next few years.

  16. Status of the Madison Plasma Dynamo Experiment

    NASA Astrophysics Data System (ADS)

    Wallace, John; Clark, Mike; Kendrick, Roch; Forest, Cary

    2010-11-01

    Construction is underway to build a new experimental facility for investigating self-generation of magnetic fields in plasma and a broader range of flow driven MHD instabilities. The Madison Plasma Dynamo Experiment (MPDX) consists of a 3 meter diameter spherical vacuum chamber lined with a series of high strength neodymium permanent magnet rings in a cusp confinement geometry which provides for a large, unmagnetized and hot plasma. Plasma will be produced by a combination of lanthanum hexaboride cathodes and electron cyclotron heating. The plasma will be stirred from the magnetized edge via electrode and ExB flows. This poster will (1) give an overview of the physics goals and required plasma parameters, (2) describe the engineering design of the facility including laboratory infrastructure, vacuum chamber, diagnostics, and heating systems, and (3) give a status report on the construction schedule. The construction is being funded by the NSF Major Research Instrumentation program.

  17. Status of the Madison Plasma Dynamo Experiment

    NASA Astrophysics Data System (ADS)

    Wallace, John; Clark, Mike; Collins, Cami; Katz, Noam; Weisberg, Dave; Forest, Cary

    2012-10-01

    Construction of the Madison Plasma Dynamo Experiment (MPDX) is complete. This facility creates large, un-magnetized, fast flowing, hot plasma for investigating magnetic field self-generation and flow driven MHD instabilities. A 3 meter diameter spherical vacuum chamber lined with a series of high strength samarium cobalt magnets provides plasma confinement. The plasma will be stirred from the magnetized edge using electrodes to produce JxB flows. Plasma sources will include lanthanum hexaboride cathodes and electron cyclotron heating utilizing five 20KW magnetrons. This poster will describe the operational status of the facility including laboratory infrastructure, cast aluminum vacuum chamber, magnets, stirring electrodes, sources, diagnostics and currently produced plasma parameters. Construction was funded by the NSF Major Research Instrumentation program.

  18. Present status of Rare-RI Ring facility at RIBF

    NASA Astrophysics Data System (ADS)

    T Yamaguchithe Rare-RI Ring Collaboration

    2015-11-01

    A new storage ring facility called the Rare-RI Ring is currently under preparation at the RI Beam Factory (RIBF) in RIKEN. The storage ring is dedicated to the single-ion precision mass spectrometry of neutron-rich exotic nuclei. The masses are essential to elucidate the evolution of the nuclear shell structure far from the β stability and to determine the pathway of astrophysical nucleosynthesis. Such exotic nuclei are provided by the large-acceptance superconducting fragment separator, BigRIPS, at the RIBF accelerator complex. The experimental principle of the Rare-RI Ring mass measurements is based on isochronous mass spectrometry combined with the individual injection technique. This novel technique enables exotic species of interest to be produced randomly, in time to be sequentially stored in the storage ring. The Rare-RI Ring facility realizes the most efficient measurements for rare isotopes. An overview of the project is presented, along with its present status.

  19. Status of the COBRA double beta decay experiment

    NASA Astrophysics Data System (ADS)

    Zuber, Kai

    2010-01-01

    The current status of the COBRA experiment is described. Results on the 4-fold forbidden beta decay of 113Cd and a variety of double beta decay limits of Cd, Zn and Te isotopes are presented based on 18 kg × days of exposure with an array of sixteen CdZnTe semiconductor detectors. A short description on the activities with pixelated detectors for tracking is given.

  20. The status of the COBRA double-beta-decay experiment

    NASA Astrophysics Data System (ADS)

    Zuber, K.

    2010-04-01

    The current status of the COBRA experiment is described. Results on the fourfold-forbidden beta decay of 113Cd and a variety of double-beta-decay limits for Cd, Zn and Te isotopes are presented, based on 18 kg× days of exposure with an array of sixteen CdZnTe semiconductor detectors. A short description of the activities with pixelated detectors for tracking is given.

  1. The Katrin Experiment: Status and Outlook

    NASA Astrophysics Data System (ADS)

    Parno, D. S.

    2014-01-01

    The KATRIN experiment, presently under construction in Karlsruhe, Germany, will improve on previous laboratory limits on the neutrino mass by a factor of ten. KATRIN will use a high-activity, gaseous T2 source and a very high-resolution spectrometer to measure the shape of the high-energy tail of the tritium-decay β spectrum. The shape measurement will also be sensitive to new physics, including sterile neutrinos and Lorentz violation. This report summarizes recent progress in the experiment.

  2. Early Detection of Fetal Malformation, a Long Distance Yet to Cover! Present Status and Potential of First Trimester Ultrasonography in Detection of Fetal Congenital Malformation in a Developing Country: Experience at a Tertiary Care Centre in India

    PubMed Central

    Kashyap, Namrata; Pradhan, Mandakini; Singh, Neeta; Yadav, Sangeeta

    2015-01-01

    Background. Early detection of malformation is tremendously improved with improvement in imaging technology. Yet in a developing country like India majority of pregnant women are not privileged to get timely diagnosis. Aims and Objectives. To assess the present status and potential of first trimester ultrasonography in detection of fetal congenital structural malformations. Methodology. This was a retrospective observational study conducted at Sanjay Gandhi Postgraduate Institute of Medical Sciences. All pregnant women had anomaly scan and women with fetal structural malformations were included. Results. Out of 4080 pregnant women undergoing ultrasound, 312 (7.6%) had fetal structural malformation. Out of 139 patients who were diagnosed after 20 weeks, 47 (33.8%) had fetal structural anomalies which could have been diagnosed before 12 weeks and 92 (66.1%) had fetal malformations which could have been diagnosed between 12 and 20 weeks. Conclusion. The first trimester ultrasonography could have identified 50% of major structural defects compared to 1.6% in the present scenario. This focuses on the immense need of the hour to gear up for early diagnosis and timely intervention in the field of prenatal detection of congenital malformation. PMID:26759727

  3. Present status and recent results from the APS SASE FEL

    NASA Astrophysics Data System (ADS)

    Lewellen, J. W.; Milton, S. V.; Gluskin, E.; Arnold, N. D.; Benson, C.; Berg, W.; Biedron, S. G.; Borland, M.; Chae, Y.-C.; Dejus, R. J.; Hartog, P. K. Den; Deriy, B.; Erdmann, M.; Eidelman, Y. I.; Hahne, M. W.; Huang, Z.; Kim, K.-J.; Li, Y.; Lumpkin, A. H.; Makarov, O.; Moog, E. R.; Nassiri, A.; Sajaev, V.; Soliday, R.; Tieman, B. J.; Trakhtenberg, E. M.; Vasserman, I. B.; Vinokurov, N. A.; Wiemerslage, G.; Yang, B. X.

    2002-05-01

    The Low-Energy Undulator Test Line (LEUTL) at the Advanced Photon Source, Argonne National Laboratory, is intended to demonstrate the basic operation of a SASE-based free-electron laser. Goals include comparison of experimental results with theoretical predictions and scaling laws, identification of problems relevant to fourth-generation light source construction and operation and the means of addressing them, the development of operational and diagnostic techniques to optimize SASE FEL performance and increase repeatability from run to run, and performance of initial pioneering experiments capable of exploiting the unique properties of the laser. The basic layout and operational philosophy of the LEUTL experiment is presented. A summary of past results, including saturation, is reviewed, and a description of recent results is presented. We conclude with future plans, which include pressing to shorter wavelengths and incorporating user experiments into the LEUTL experimental program.

  4. Status and prospects of the SNO+ experiment

    NASA Astrophysics Data System (ADS)

    Maneira, J.

    2016-05-01

    The SNO+ experiment is located at the SNOLAB underground laboratory and will employ 780 tons of liquid scintillator loaded, in its initial phase, with 800 kg of 130Te (0.3% by mass) for a low-background and high-isotope-mass search for neutrino-less double beta decay. SNO+ reuses the acrylic vessel and PMT array of the SNO detector, but several experimental upgrades and adaptations were necessary to allow for the use of liquid scintillator. The SNO+ technique allows a staged approach, and extensive R&D is ongoing to increase the loadings and improve the purification of Tellurium. The very good conditions of background and low energy threshold allow SNO+ to also have other physics topics in its program, including geo- and reactor neutrinos, Supernova and solar neutrinos. This talk will describe the main advantages and challenges of the SNO+ approach for the double-beta decay program, the current status of the experiment and its sensitivity prospects.

  5. Experiments on plants grown in space. Status and prospects

    NASA Technical Reports Server (NTRS)

    Halstead, T. W.; Dutcher, F. R.

    1984-01-01

    Space flight provides a unique capability to gravitational research by providing an environment in which gravity can be manipulated below the Earth norm of 1 to a state comparable to weightlessness. Although space experiments with seeds and plants have been conducted for almost 25 years, we are only now entering an era that promises the capability of routinely conducting controlled plant experiments in space. Results from experiments with higher plants and seeds flown thus far in both manned and unmanned spacecraft from both the USA and USSR are briefly summarized. An overview of the current status of space biology experimentation as it relates to plants is presented and present and future opportunities to conduct plant experiments under space flight conditions are discussed.

  6. Status and perspectives of the COBRA double beta decay experiment

    NASA Astrophysics Data System (ADS)

    Kiel, Henning; COBRA Collaboration

    2006-05-01

    The COBRA experiment is going to use a large amount of CdZnTe semiconductor detectors to perform a search for various double beta decay modes. The current status of the experiment is presented, as well as first results. A half-life measurement of the 4-fold forbidden non-unique beta-decay of 113Cd has been performed. Improved half-life limits for the ground state transitions of 64Zn for 0νβ+/EC and 0νEC/EC have been obtained. A short outlook on future activities is given.

  7. Status report of the GERDA experiment phase I

    NASA Astrophysics Data System (ADS)

    Riboldi, Stefano; Gerda Collaboration

    2013-08-01

    Phase I of GERDA, aimed at investigating neutrino-less double beta decay of 76Ge is in the active phase since November 2011 at the Gran Sasso National Laboratory of INFN-Italy. GERDA Ge detectors are non-encapsulated and operate immersed in liquid argon, equipped with a front-end readout electronics consisting of cryogenic charge sensitive preamplifiers designed and manufactured to cope with the characteristics of the GERDA experiment (radio-purity, long and resistive cables, etc.). The presentation will report on the current status of the GERDA experiment phase I, focusing on Ge detectors performance in terms of energy resolution, stability over time, counting rate and related issues.

  8. Status of Meson Photoproduction Experiments with CLAS

    SciTech Connect

    Pasyuk, Eugene A.

    2014-01-01

    A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to baryon spectroscopy. Meson photoproduction experiments are essential part of this program. CEBAF Large Acceptance Spectrometer (CLAS) and availability of circularly and linearly polarized tagged photon beams in combination with longitudinally and transversely polarized frozen spin targets provide unique conditions for this type of experiments. For the first time, a complete or nearly complete measurement became possible and will allow model independent extraction of the reaction amplitude. The measurements were complete with both proton and deuteron targets. An overview of the collected experimental data will be presented.

  9. Present groundwater status in Egypt and the environmental impacts

    NASA Astrophysics Data System (ADS)

    Idris, Hussein; Nour, S.

    1990-11-01

    This article is an attempt to give a brief review on the status of groundwater studies in Egypt, their results, and the present plans for groundwater development that are usually based on the hydrogeological characteristics of the groundwater resources as well as on the environmental control of the discharge area. In terms of groundwater hydrology, Egypt can be divided into the following groundwater provinces: (1) the Western Desert, (2) the Eastern Desert, (3) the Nile Valley including the delta, (4) the Sinai Peninsula, (5) the Northern Coastal Zone, and (6) Wadi El-Natrun. The studies of volume and nature of groundwater and the environmental impact studies that were carried out in each of these provinces differed according to the importance given to development of projects in areas of interest and to the availability of funds. Recent studies and the surveys conducted for groundwater hydrological research by local and international organizations are described separately for each province. Special reference is made to groundwater hydro-geological setting, groundwater resources evaluation, and present and future utilization. The New Valley is the largest Egyptian irrigated agricultural development project that is solely dependent on groundwater resources. An outline showing its nature, objective, and size is included as an example of groundwater development.

  10. Status of the Daya Bay Reactor Neutrino Oscillation Experiment

    SciTech Connect

    Daya Bay Collaboration; Lin, Cheng-Ju Stephen

    2010-12-15

    The last unknown neutrino mixing angle theta_13 is one of the fundamental parameters of nature; it is also a crucial parameter for determining the sensitivity of future long-baseline experiments aimed to study CP violation in the neutrino sector. Daya Bay is a reactor neutrino oscillation experiment designed to achieve a sensitivity on the value of sin^2(2*theta_13) to better than 0.01 at 90percent CL. The experiment consists of multiple identical detectors placed underground at different baselines to minimize systematic errors and suppress cosmogenic backgrounds. With the baseline design, the expected anti-neutrino signal at the far site is about 360 events per day and at each of the near sites is about 1500 events per day. An overview and current status of the experiment will be presented.

  11. Status and commissioning of the Karlsruhe tritium neutrino experiment KATRIN

    NASA Astrophysics Data System (ADS)

    Thuemmler, Thomas; Katrin Collaboration

    2013-10-01

    Neutrino properties, and especially the determination of the neutrino rest mass, play an important role at the intersections of cosmology, particle physics and astroparticle physics. At present there are two complementary approaches to address this topic in laboratory experiments. The search for neutrinoless double β decay probes whether neutrinos are Majorana particles and determines an effective neutrino mass value. Experiments based on single β decay investigate electrons close to their kinematic endpoint in order to determine the neutrino mass by a modelindependent method. The KArlsruhe TRItium Neutrino experiment (KATRIN) is currently the experiment in the most advanced status of commissioning. Applying an ultra-luminous molecular windowless gaseous tritium source and an integrating high-resolution spectrometer of MAC-E filter type, it allows β spectroscopy close to the tritium endpoint with unprecedented precision and will reach a sensitivity of 200 meV/c2 (90% C.L.) on the neutrino mass.

  12. Progress and present status of ITER cryoline system

    SciTech Connect

    Badgujar, S.; Bonneton, M.; Chalifour, M.; Forgeas, A.; Serio, L.; Sarkar, B.; Shah, N.

    2014-01-29

    The cryoline system at ITER forms a very complex network localized inside the Tokamak building, on a dedicated plant bridge and in cryoplant areas. The cooling power produced in the cryoplant is distributed via these lines with a total length of about 3.7 km and interconnecting all the cold boxes of the cryogenic system as well as the cold boxes of various clients (magnets, cryopumps and thermal shield). Distinct layouts and polygonal geometry, nuclear safety and confinement requirements, difficult installation and in-service inspection/repair demand very high reliability and availability for the cryolines. The finalization of the building-embedded plates for supporting the lines, before the detailed design, has made this project technologically more challenging. The conceptual design phase has been completed and procurement arrangements have been signed with India, responsible for providing the system of cryolines and warm lines to ITER, as in kind contribution. The prototype test for the design and performance validation has been planned on a representative cryoline section. After describing the basic features and general layout of the ITER cryolines, the paper presents key design requirements, conceptual design approach, progress and status of the cryolines project as well as challenges to build such a complex cryoline system.

  13. Design of the muon collider lattice: Present status

    SciTech Connect

    Garren, A.; Courant, E.; Gallardo, J.

    1996-05-01

    The last component of a muon collider facility, as presently envisioned, is a colliding-beam storage ring. Design studies on various problems for this ring have been in progress over the past year. In this paper we discuss the current status of the design. The projected muon currents require very low beta values at the IP, {beta}* = 3 mm, in order to achieve the design luminosity of L = 10{sup 35} cm{sup -2} s{sup -1}. The beta values in the final-focus quadrupoles are roughly 400 km. To cancel the corresponding chromaticities, sextupole schemes for local correction have been included in the optics of the experimental insertion. The hour-glass effect constraints the bunch length to be comparable too. To obtain such short bunches with reasonable rf voltage requires a very small value of the momentum compaction a, which can be obtained by using flexible momentum compaction (FMC) modules in the arcs. A preliminary design of a complete collider ring has now been made; it uses an experimental insertion and arc modules as well as a utility insertion. The layout of this ring is shown schematically, and its parameters are summarized. Though some engineering features are unrealistic, and the beam performance needs some improvement, we believe that this study can serve as the basis for a workable collider design. The remaining sections of the paper will describe the lattice, show beam behaviour, and discuss future design studies.

  14. Progress and present status of ITER cryoline system

    NASA Astrophysics Data System (ADS)

    Badgujar, S.; Bonneton, M.; Chalifour, M.; Forgeas, A.; Serio, L.; Sarkar, B.; Shah, N.

    2014-01-01

    The cryoline system at ITER forms a very complex network localized inside the Tokamak building, on a dedicated plant bridge and in cryoplant areas. The cooling power produced in the cryoplant is distributed via these lines with a total length of about 3.7 km and interconnecting all the cold boxes of the cryogenic system as well as the cold boxes of various clients (magnets, cryopumps and thermal shield). Distinct layouts and polygonal geometry, nuclear safety and confinement requirements, difficult installation and in-service inspection/repair demand very high reliability and availability for the cryolines. The finalization of the building-embedded plates for supporting the lines, before the detailed design, has made this project technologically more challenging. The conceptual design phase has been completed and procurement arrangements have been signed with India, responsible for providing the system of cryolines and warm lines to ITER, as in kind contribution. The prototype test for the design and performance validation has been planned on a representative cryoline section. After describing the basic features and general layout of the ITER cryolines, the paper presents key design requirements, conceptual design approach, progress and status of the cryolines project as well as challenges to build such a complex cryoline system.

  15. CRUDE OIL BIOREMEDIATION: THE AMERICAN EXPERIENCE (PRESENTATION)

    EPA Science Inventory

    This is a state-of-the-art extended abstract presentation summary of the outputs from the oil spill program over the last 11 years. It summarizes the results of 3 field studies involving intentional releases of crude oil: the Delaware study in 1994 (sandy beach), the St. Lawrence...

  16. Iodine status in the Nordic countries – past and present

    PubMed Central

    Nyström, Helena Filipsson; Brantsæter, Anne Lise; Erlund, Iris; Gunnarsdottir, Ingibjörg; Hulthén, Lena; Laurberg, Peter; Mattisson, Irene; Rasmussen, Lone Banke; Virtanen, Suvi; Meltzer, Helle Margrete

    2016-01-01

    Background Adequate iodine nutrition is dependent on ground water content, seafood, and, as many countries use iodized cow fodder, dairy products. In most countries, salt fortification programs are needed to assure adequate iodine intake. Objectives The objectives are threefold: 1) to describe the past and present iodine situation in the Nordic countries, 2) to identify important gaps of knowledge, and 3) to highlight differences among the Nordic countries’ iodine biomonitoring and fortification policies. Design Historical data are compared with the current situation. The Nordic countries’ strategies to achieve recommended intake and urine iodine levels and their respective success rates are evaluated. Results In the past, the iodine situation ranged from excellent in Iceland to widespread goiter and cretinism in large areas of Sweden. The situation was less severe in Norway and Finland. According to a 1960 World Health Organization (WHO) report, there were then no observations of iodine deficiency in Denmark. In Sweden and Finland, the fortification of table salt was introduced 50–75 years ago, and in Norway and Finland, the fortification of cow fodder starting in the 1950s helped improve the population's iodine status due to the high intake of milk. In Denmark, iodine has been added to household salt and salt in bread for the past 15 years. The Nordic countries differ with regard to regulations and degree of governmental involvement. There are indications that pregnant and lactating women, the two most vulnerable groups, are mildly deficient in iodine in several of the Nordic countries. Conclusion The Nordic countries employ different strategies to attain adequate iodine nutrition. The situation is not optimal and is in need of re-evaluation. Iodine researchers, Nordic national food administrations, and Nordic governmental institutions would benefit from collaboration to attain a broader approach and guarantee good iodine health for all. PMID:27283870

  17. Status of the Borexino Solar Neutrino Experiment, 2006

    SciTech Connect

    McCarty, Kevin B.

    2006-11-17

    The Borexino experiment is designed to measure the flux of 7Be solar neutrinos. The experiment, having a 100-ton fiducial volume of organic liquid scintillator, should detect roughly 35 neutrinos per day in the energy range 250 - 1300 keV, a range lower than that of any previous real-time neutrino detector. Though the 862-keV 7Be neutrinos make up roughly 10% of the total solar neutrino flux, they have not previously been directly observed. Their energy is at a delicate point for confirmation of the vacuum-to-matter oscillation transition. In these proceedings, I will present the status of the Borexino experiment as of August 2006, as we prepare for final filling of the detector.

  18. The RSRA/X-Wing experiment - A status report

    NASA Technical Reports Server (NTRS)

    Lane, James W.; Sumich, Mark

    1988-01-01

    This paper reports on the current status of the NASA/Army Rotor Systems Research Aircraft (RSRA)/X-Wing Experiment program designed to demonstrate the technology readiness of the X-Wing concept for a prototype vehicle. Program accomplishments, test results on all of the necessary major hardware elements, and the results of flight tests are described. Future wind tunnel testing of the full-scale rotor system in the NASA NF SAC facility is presently being planned; these tests must be completed before an objective assessment can be made regarding the viability of the RSRA/X-Wing concept for an operational aircraft.

  19. Illiteracy, Sex and Occupational Status in Present-Day China.

    ERIC Educational Resources Information Center

    Lamontagne, Jacques

    This study determined the magnitude of disparity between men and women in China in relation to illiteracy and occupational status. Region and ethnicity are used as control variables. The data collected are from a 10 percent sampling of the 1982 census; the total sample size includes a population of 100,380,000 nationwide. The census questionnaire…

  20. National Fuel Cell Vehicle Learning Demonstration: Status and Results (Presentation)

    SciTech Connect

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Garbak, J.

    2009-04-22

    The objectives of this paper are: (1) validate H{sub 2} FC vehicles and infrastructure in parallel; (2) identify current status and evolution of the technology; (3) objectively assess progress toward technology readiness; and (4) provide feedback to H{sub 2} research and development.

  1. Status of the hydrogen and deuterium atomic beam polarized target for NEPTUN experiment

    NASA Astrophysics Data System (ADS)

    Balandikov, N. I.; Ershov, V. P.; Fimushkin, V. V.; Kulikov, M. V.; Pilipenko, Yu. K.; Shutov, V. B.

    1995-09-01

    NEPTUN-NEPTUN-A is a polarized experiment at Accelerating and Storage Complex (UNK, IHEP) with two internal targets. Status of the atomic beam polarized target that is being developed at the Joint Institute for Nuclear Research, Dubna is presented.

  2. The german microgravity program: Objectives and present status

    NASA Astrophysics Data System (ADS)

    Greger, G.; Strub, H.; Wagner, M.

    Within the space program of the Federal Republic of Germany the microgravity program in connection with the utilization of SPACELAB constitutes a central task which determines the long-term program concepts and also their relation to German participation in future ESA programs. The scientific preparatory programs under way for some years now have made further progress. Extensive flight experience and valuable scientific results were obtained on the basis of successful rocket pre-programs. The present paper describes the process in which scientific and organisational priorities are being defined for the planning and execution of the experimental programs. In order to obtain a sufficient number of flight opportunities, payloads for SPACE SHUTTLE missions, in particular under the NASA GAS Program, as well as experimental equipment such as the materials laboratory (MSDR) for FSLP are being developed. The German program focuses on preparing a German SPACELAB mission D1 planned for 1985, which is intended to verify the applicability and efficiency of manned research laboratories for industry and the scientific community. A second emphasis is on preparing the use of SHUTTLE-supported re-usable space platforms.

  3. Groundwater Storage Changes: Present Status from GRACE Observations

    NASA Astrophysics Data System (ADS)

    Chen, Jianli; Famigliett, James S.; Scanlon, Bridget R.; Rodell, Matthew

    2016-03-01

    Satellite gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) provide quantitative measurement of terrestrial water storage (TWS) changes with unprecedented accuracy. Combining GRACE-observed TWS changes and independent estimates of water change in soil and snow and surface reservoirs offers a means for estimating groundwater storage change. Since its launch in March 2002, GRACE time-variable gravity data have been successfully used to quantify long-term groundwater storage changes in different regions over the world, including northwest India, the High Plains Aquifer and the Central Valley in the USA, the North China Plain, Middle East, and southern Murray-Darling Basin in Australia, where groundwater storage has been significantly depleted in recent years (or decades). It is difficult to rely on in situ groundwater measurements for accurate quantification of large, regional-scale groundwater storage changes, especially at long timescales due to inadequate spatial and temporal coverage of in situ data and uncertainties in storage coefficients. The now nearly 13 years of GRACE gravity data provide a successful and unique complementary tool for monitoring and measuring groundwater changes on a global and regional basis. Despite the successful applications of GRACE in studying global groundwater storage change, there are still some major challenges limiting the application and interpretation of GRACE data. In this paper, we present an overview of GRACE applications in groundwater studies and discuss if and how the main challenges to using GRACE data can be addressed.

  4. Present Status and Extensions of the Monte Carlo Performance Benchmark

    NASA Astrophysics Data System (ADS)

    Hoogenboom, J. Eduard; Petrovic, Bojan; Martin, William R.

    2014-06-01

    The NEA Monte Carlo Performance benchmark started in 2011 aiming to monitor over the years the abilities to perform a full-size Monte Carlo reactor core calculation with a detailed power production for each fuel pin with axial distribution. This paper gives an overview of the contributed results thus far. It shows that reaching a statistical accuracy of 1 % for most of the small fuel zones requires about 100 billion neutron histories. The efficiency of parallel execution of Monte Carlo codes on a large number of processor cores shows clear limitations for computer clusters with common type computer nodes. However, using true supercomputers the speedup of parallel calculations is increasing up to large numbers of processor cores. More experience is needed from calculations on true supercomputers using large numbers of processors in order to predict if the requested calculations can be done in a short time. As the specifications of the reactor geometry for this benchmark test are well suited for further investigations of full-core Monte Carlo calculations and a need is felt for testing other issues than its computational performance, proposals are presented for extending the benchmark to a suite of benchmark problems for evaluating fission source convergence for a system with a high dominance ratio, for coupling with thermal-hydraulics calculations to evaluate the use of different temperatures and coolant densities and to study the correctness and effectiveness of burnup calculations. Moreover, other contemporary proposals for a full-core calculation with realistic geometry and material composition will be discussed.

  5. Present status of computational tools for maglev development

    SciTech Connect

    Wang, Z.; Chen, S.S.; Rote, D.M.

    1991-10-01

    High-speed vehicles that employ magnetic levitation (maglev) have received great attention worldwide as a means of relieving both highway and air-traffic congestion. At this time, Japan and Germany are leading the development of maglev. After fifteen years of inactivity that is attributed to technical policy decisions, the federal government of the United States has reconsidered the possibility of using maglev in the United States. The National Maglev Initiative (NMI) was established in May 1990 to assess the potential of maglev in the United States. One of the tasks of the NMI, which is also the objective of this report, is to determine the status of existing computer software that can be applied to maglev-related problems. The computational problems involved in maglev assessment, research, and development can be classified into two categories: electromagnetic and mechanical. Because most maglev problems are complicated and difficult to solve analytically, proper numerical methods are needed to find solutions. To determine the status of maglev-related software, developers and users of computer codes were surveyed. The results of the survey are described in this report. 25 refs.

  6. Present status of yellow fever: Memorandum from a PAHO Meeting*

    PubMed Central

    1986-01-01

    An international seminar on the treatment and laboratory diagnosis of yellow fever, sponsored by the Pan American Health Organization (PAHO) and held in 1984, differed from previous meetings on yellow fever because of its emphasis on the care and management of patients and because the participants included specialists from several branches of medicine, such as hepatology, haematology, cardiology, infectious diseases, pathology and nephrology. The meeting reviewed the current status of yellow fever and problems associated with case-finding and notification; features of yellow fever in individual countries of Latin America; health services and facilities for medical care as they relate to diagnosis and management of cases; prevention strategies for and current status of immunization programmes; clinical and pathological aspects of yellow fever in humans; pathogenesis and pathophysiology of yellow fever in experimental animal models; clinical and specific laboratory diagnosis; treatment of the disease and of complications in the functioning of individual organ systems; prognosis and prognostic indicators; and directions for future clinical and experimental research on pathophysiology and treatment. PMID:3490922

  7. The Telescope Array experiment: status and prospects

    NASA Astrophysics Data System (ADS)

    Tokuno, H.; Abbasi, R. U.; Abu-Zayyad, T.; Azuma, R.; Belz, J. W.; Benno, T.; Bergman, D. R.; Blake, S. A.; Brusova, O.; Cady, R.; Cao, Z.; Cheon, B. G.; Chiba, J.; Chikawa, M.; Cho, I. S.; Chung, T.; Cohen, F.; Doura, K.; Doyle, T.; Endo, A.; Fujii, H.; Fukuda, T.; Fukushima, M.; Hayashi, Y.; Hayashi, K.; Hayashida, N.; Hibino, K.; Hiyama, K.; Honda, K.; Huentemeyer, P.; Hughes, G. A.; Iguchi, T.; Ikeda, D.; Ikuta, K.; Inoue, N.; Ishii, T.; Jui, C. C. H.; Kadota, K.; Kakimoto, F.; Kanbe, T.; Kasahara, K.; Kawai, H.; Kawakami, S.; Kawana, S.; Kido, E.; Kondo, Y.; Kwon, Y. J.; Machida, S.; Martens, K.; Matsuda, T.; Matsuyama, T.; Matthews, J. A. J.; Matthews, J. N.; Minamino, M.; Miyata, K.; Mostafa, M.; Murano, Y.; Nakamura, T.; Nam, S.; Nonaka, T.; Ogio, S.; Oh, S.; Ohnishi, M.; Ohoka, H.; Ohshima, A.; Okuda, T.; Ormes, J.; Ozawa, S.; Park, I. H.; Park, J. H.; Rodriguez, D.; Sagawa, H.; Sakurai, N.; Scott, L. M.; Shibata, T.; Shimizu, N.; Shimodaira, H.; Sinnis, G.; Smith, J. D.; Sokolsky, P.; Springer, R. W.; Stratton, S. R.; Suzuki, S.; Takeda, M.; Taketa, A.; Takita, M.; Tameda, Y.; Tanaka, K.; Tanaka, M.; Tanaka, H.; Taylor, M. J.; Teshima, M.; Thomas, J. R.; Thomas, S. B.; Thomson, G. B.; Tomida, T.; Torii, R.; Tsunesada, Y.; Uchihori, Y.; Udo, S.; Unno, Y.; Wada, Y.; Wickwar, V. B.; Wiencke, L. R.; Wilkerson, T. D.; Yamakawa, Y.; Yamaoka, H.; Yang, J.; Yoshida, S.; Yoshii, H.; Yun, Y. H.

    2008-07-01

    Telescope Array (TA) is a hybrid detector of a surface detector array and fluorescence telescopes. This hybrid detector will measure the energy spectrum, anisotropy and composition of ultra-high energy cosmic rays (UHECRs) to identify their origin. The almost construction of the detector has been completed in May 2007, and the detector is running under test and adjustments. The first hybrid observation with the full configuration is planned in beginning of 2008. In this paper the status and prospects of TA detector is described.

  8. Status of the NOvA experiment

    SciTech Connect

    Plunkett, Robert; /Fermilab

    2007-12-01

    The NOvA experiment, using the existing NuMI beamline, is planned for construction at Ash River, Minnesota. The experiment will provide a measurement of, or strong limit on the neutrino mixing angle {theta}{sub 13}, and for sufficiently strong mixing, establish the hierarchy of the neutrino masses.

  9. The Status of Radiation Damage Experiments

    SciTech Connect

    Strachan, Denis M.; Scheele, Randall D.; Icenhower, Jonathan P.; Kozelisky, Anne E.; Sell, Richard L.; Legore, Virginia L.; Schaef, Herbert T.; O'Hara, Matthew J.; Brown, Christopher F.; Buchmiller, William C.

    2001-11-20

    Experiments have been on-going for about two years to determine the effects that radiation damage have on the physical and chemical properties of candidate titanate ceramics for the immobilization of plutonium. We summarize the results of these experiments in this document.

  10. Trans-Pacific Astronomy Experiment Project Status

    NASA Technical Reports Server (NTRS)

    Hsu, Eddie

    2000-01-01

    The Trans-Pacific Astronomy Experiment is Phase 2 of the Trans-Pacific High Data Rate Satcom Experiments following the Trans-Pacific High Definition Video Experiment. It is a part of the Global Information Infrastructure-Global Interoperability for Broadband Networks Project (GII-GIBN). Provides global information infrastructure involving broadband satellites and terrestrial networks and access to information by anyone, anywhere, at any time. Collaboration of government, industry, and academic organizations demonstrate the use of broadband satellite links in a global information infrastructure with emphasis on astronomical observations, collaborative discussions and distance learning.

  11. Relativity experiment on Helios - A status report

    NASA Technical Reports Server (NTRS)

    Anderson, J. D.; Melbourne, W. G.; Cain, D. L.; Lau, E. K.; Wong, S. K.; Kundt, W.

    1975-01-01

    The relativity experiment on Helios (Experiment 11) uses S-band and Doppler data, and spacecraft-solar-orbital data to measure the effects of general relativity in the solar system and the quadrupole moment in the solar gravitational field. Specifically, Experiment 11 is converned with measuring the following effects: (1) relativistic orbital corrections described by two parameters of the space-time metric which are both equal to unity in Einstein's theory; (2) orbital perturbations caused by a finite quadrupole moment of an oblate sun, described by zonal harmonics in the solar gravitational field.

  12. Present status of beryllide R&D as neutron multiplier

    NASA Astrophysics Data System (ADS)

    Kawamura, H.; Takahashi, H.; Yoshida, N.; Mishima, Y.; Ishida, K.; Iwadachi, T.; Cardella, A.; van der Laan, J. G.; Uchida, M.; Munakata, K.; Sato, Y.; Shestakov, V.; Tanaka, S.

    2004-08-01

    Since 1997, beryllide application as the neutron multiplier has been proposed in Japan and preliminary investigations revealed that some beryllides such as Be 12Ti have excellent properties compared with beryllium metal. Recently, several international R&D programs were performed. Some pebbles of modified Be 12Ti that included the Be phase were obtained by the rotating electrode method. Basic characterization using HIPped Be 12Ti has also been performed. Preliminary experiments indicate that compatibility with stainless steel and tritium breeder materials, deuterium release, natural oxidation and oxidations by steam interaction were better than the behavior of beryllium. Preliminary neutron irradiation effects were studied in JMTR and by charged particle irradiation. It was observed that Be 12Ti has less radiation damage than beryllium. In a future experiment, Japanese Be 12Ti samples will be included in a long European irradiation program on beryllium to produce up to 6000 appm He. This is an IEA collaborative experiment, to evaluate neutron irradiation effects.

  13. Status of Magnetohydrodynamic Augmented Propulsion Experiment

    NASA Technical Reports Server (NTRS)

    Litchford, Ron J.; Lineberry, John T.

    2007-01-01

    Over the past several years, efforts have been under way to design and develop an operationally flexible research facility for investigating the use of cross-field MHD accelerators as a potential thrust augmentation device for thermal propulsion systems, The baseline configuration for this high-power experimental facility utilizes a 1,5-MW, multi-gas arc-heater as a thermal driver for a 2-MW, MHD accelerator, which resides in a large-bore 2-tesla electromagnet. A preliminary design study using NaK seeded nitrogen as the working fluid led to an externally diagonalized segmented MHD channel configuration based on an expendable beat-sink design concept. The current status report includes a review of engineering/design work and performance optimization analyses and summarizes component hardware fabrication and development efforts, preliminary testing results, and recent progress toward full-up assembly and testing

  14. Photovoltaic manufacturing: Present status, future prospects, and research needs

    SciTech Connect

    Wolden, C.A.; Fthenakis, V.; Kurtin, J.; Baxter, J.; Repins, I.; Shasheen, S.; Torvik, J.; Rocket, A.; Aydil, E.

    2011-03-29

    In May 2010 the United States National Science Foundation sponsored a two-day workshop to review the state-of-the-art and research challenges in photovoltaic (PV) manufacturing. This article summarizes the major conclusions and outcomes from this workshop, which was focused on identifying the science that needs to be done to help accelerate PV manufacturing. A significant portion of the article focuses on assessing the current status of and future opportunities in the major PV manufacturing technologies. These are solar cells based on crystalline silicon (c-Si), thin films of cadmium telluride (CdTe), thin films of copper indium gallium diselenide, and thin films of hydrogenated amorphous and nanocrystalline silicon. Current trends indicate that the cost per watt of c-Si and CdTe solar cells are being reduced to levels beyond the constraints commonly associated with these technologies. With a focus on TW/yr production capacity, the issue of material availability is discussed along with the emerging technologies of dye-sensitized solar cells and organic photovoltaics that are potentially less constrained by elemental abundance. Lastly, recommendations are made for research investment, with an emphasis on those areas that are expected to have cross-cutting impact.

  15. Total Solar Irradiance: Present status of TSI observations

    NASA Astrophysics Data System (ADS)

    Schmutz, Werner; Fehlmann, Andr; Finsterle, Wolfgang; Rozanov, Eugene

    Total Solar Irradiance is measured by pyrheliometers. These instruments are either fully charac-terized and measure in absolute units or they are traceable to the World Radiometric Reference (WRR) at the World Radiation Center in Davos. The WRR in turn is so far only traceable to SI in power but not in irradiance. The added difficulty when discussing metrology of pyrheliome-ters in space is that the WRR is operated in air. Thus, so far, measurements of TSI in space rely on the full characterization of the instruments and a fully traceable TSI measurements has not yet been flown. This talk will give an overview over existing space observations of TSI and discusses the dif-ferences in the absolute and relative values between the various experiments. The challenge for future experiments is to get full traceability of the measurements in space. There are two upcoming experiments, PREMOS on PICARD and GLORY/TIM, which will yield TSI measurements which will be SI traceable.

  16. The MEG experiment: status and perspectives

    SciTech Connect

    Nicolo, Donato

    2010-03-30

    The MEG experiment, a sensitive search for the mu->egamma decay, has started operating in September 2008. Analysis of data collected during the initial three months of operation is still ongoing and soon to be finalized. The detector performance during Run 2008 is reviewed, with remarks on perspectives for Run 2009.

  17. The Mars SEIS Experiment : Development Status

    NASA Astrophysics Data System (ADS)

    Schibler, P.; Mimoun, D.; Lognonné, P.; Giardini, D.; Banerdt, B.

    2004-12-01

    The objective of the Mars SEIS experiment is the determination of the deep internal structure of Mars. In particular, geophysical parameters of first importance, such as the state (liquid/solid) and size of the core, as far as structure of the mantle and shape of discontinuities will be determined by the experience. The experiment integrates a Very Broad Band (2 axis) seismometer, a (3 axis) short period seismometer and environmental sensors for pressure, infrasounds and temperature. The sensors measure signals in an ultra-broad band, from the tidal frequencies (0.05 mHz) up to the short period frequencies (50 Hz). Long term VBB bias will be actively decorrelated from temperature and pressure variations, allowing the sensor to operate in a thermal environment with daily variations of about 40°K Infrasounds, which might be associated to dust devils and atmospheric discharge, will be also monitored. The overall mass of the SEIS experiment is 2.3 kg, including all sensors, data control processors and depployment devices. Acquisition will be performed by a series of 24 bits A/D converters, while the thermal and drift control will be performed by a feedback generated by a 24 bits D/A converter. A breadboard of the VBB axis is been delivered by industry in July 2004 and will be calibrated at IPGP facilities. A breadboard of the electronics has already been delivered and supports currently the development of the software first iteration. A functional breadboard of sphere (15 cm diameter) containing 2 VBB axis, environmental sensors and electronics will be delivered at the beginning of 2005. IPGP has the overall responsibility of the experiment and is responsible for the VBB sensor and environmental sensors. ETHZ is responsible for the electronics of the experiment and JPL for the Short Period sensors. The SEIS is one of the core instruments of the former Netlander mission, which objective is to deploy a network of 4 stations on Mars for one Martian year of operation

  18. Status of the Wind-Diesel Market (Presentation)

    SciTech Connect

    Baring-Gould, E. I.

    2014-02-01

    This presentation offers an overview of the wind-diesel market, including the range of power systems, recent progress, current energy situation of remote communities, operating projects, current market approaches and ongoing challenges.

  19. Analysis status of the Q-weak experiment

    NASA Astrophysics Data System (ADS)

    Kargiantoulakis, Emmanouil; Q-weak Collaboration

    2015-04-01

    The Q-weak Collaboration completed a challenging measurement of the parity-violating asymmetry in elastic electron-proton scattering at the Thomas Jefferson National Accelerator Facility (JLab). The initial result reported here is extracted from the commissioning part of the experiment, constituting about 4% of the full data set, and allowed for the first determination of the weak charge of the proton. The analysis of the full Q-weak data set is ongoing and expected to yield a high precision value for the weak charge, which will place significant constraints to models of physics beyond the standard model. The current status will be presented, with emphasis on analysis efforts to reduce the most important systematic uncertainties of the preliminary result.

  20. Microwave Tokamak Experiment: Overview and status

    SciTech Connect

    Not Available

    1990-05-01

    The Microwave Tokamak Experiment, now under construction at the Laboratory, will use microwave heating from a free-electron laser. The intense microwave pulses will be injected into the tokamak to realize several goals, including a demonstration of the effects of localized heat deposition within magnetically confined plasma, a better understanding of energy confinement in tokamaks, and use of the new free-electron laser technology for plasma heating. 3 figs., 3 tabs.

  1. Probing the radiative zones of stars: Present status and developments

    NASA Astrophysics Data System (ADS)

    Turck-Chièze, S.

    2013-12-01

    Seismology of Sun and stars associated to precise solar neutrino detections reveals microscopic and macroscopic behaviors of radiative zones that were not anticipated by stellar modeling predictions. These results allow us to check the hypotheses of the equations used in stellar evolution for long. In this review, I list some of the problems which emerge from these confrontations both on the description of the Sun or solar-like stars and on the envelopes of intermediate-type stars, then I summarize the cases at least partly solved in using 3D MHD simulations, new opacity calculations and laboratory experiments. This review shows also how we hope to progress on the others inside our OPAC consortium or in using the coming detection of neutrino fluxes.

  2. The Japanese lunar mission SELENE: Science goals and present status

    NASA Astrophysics Data System (ADS)

    Kato, M.; Sasaki, S.; Tanaka, K.; Iijima, Y.; Takizawa, Y.

    2008-07-01

    The Japanese lunar mission SELENE (SELenological and ENgineering Explorer) has been in development to target launch scheduled 2007 summer by H-IIA rocket. The SELENE is starting final integration test after SAR (System Acceptance Review), SRR (System Reliability Review) and instrument environment test. The SELENE is a remote-sensing mission orbiting 100 km altitude of the Moon for nominal one year and extended some months to collect the data for studying the origin and evolution of the Moon. Fourteen instruments and experiment systems are preparing for studies of the Moon, in the Moon, and from the Moon; global element and mineral compositions, topological structure, gravity field of whole moon, and electromagnetic and particle environment of the Moon. The new data center SOAC (SELENE Operation and data Analysis Center) are completed to construct in JAXA Sagamihara campus, and end-to-end test will be carried out between SOAC and data downlink stations.

  3. The SELENE mission: science goals and present status

    NASA Astrophysics Data System (ADS)

    Kato, M.; Sasaki, S.; Takizawa, Y.

    Japanese lunar mission SELENE has been in development to target launch scheduled 2007 summer by H-IIA rocket The SELENE is starting final integration test after SAR System Acceptance Review SRR System Reliability Review and individual environment test The SELENE is a remote-sensing mission orbiting 100 km altitude of the Moon for nominal one year and extended some months to collect the data for studying the origin and evolution of the Moon Fourteen instruments and experiment systems are preparing for studies of the Moon in the Moon and from the Moon global element and mineral compositions topological structure gravity field of whole moon and electromagnetic and particle environment of the Moon The new data center SOAC SELENE Operation and data Analysis Center are almost completed to construct in JAXA Sagamihara campus and end-to end test will be soon carried out between SOAC and data-downlink stations

  4. PRESENT STATUS OF CHARGE-BREEDING IN KEKCB AT TRIAC

    SciTech Connect

    Oyaizu, M.; Jeong, S. C.; Imai, N.; Fuchi, Y.; Hirayama, Y.; Ishiyama, H.; Miyatake, H.; Okada, M.; Watanabe, Y. X.; Ichikawa, S.; Kabumoto, H.; Matsuda, M.; Osa, A.; Otokawa, Y.

    2009-05-04

    We report a recent experiment about the measurement of wall distribution of ions externally injected for charge-breeding in an electron cyclotron resonance (ECR) ion source. The ions, radioactive and singly charged {sup 111}In, were injected into the ECR ion source (ECRIS) for breeding their charge states at the Tokai Radioactive Ion Accelerator Complex (TRIAC). The residual radioactivity on the wall of the ECR plasma chamber of the source was measured, giving a two-dimensional distribution of the ions failed to be re-extracted during charge breeding. The distribution was decomposed, according to azimuthal symmetry, into three components, asymmetric, 120-degree symmetric, and isotropic ones, whose origins were qualitatively discussed for clarifying ion-losses in the course of charge breeding in ECRIS.

  5. Western Interconnection Energy Imbalance Market Status and Prospects (Presentation)

    SciTech Connect

    Milligan, M.; Kirby, B.; King, J.; Beuning, S.

    2011-10-01

    This presentation describes how a new wholesale electricity market for energy imbalance ancillary services could be implemented and operated. Some conclusions of this presentation are: (1) Method for calculating additional reserve requirements due to wind and solar production; (2) EIM results in substantial reduction in reserves requirements and ramping demand; (3) Reduced participation reduces benefits for all but reduces the benefits to non-participants the most; (4) Full participation leads to maximum benefit across the Western Interconnection, up to 42% of total reserve requirement; and (5) Regional EIM implementations have smaller but substantial benefits.

  6. The Electronic Presentation: A Status Report of International Use.

    ERIC Educational Resources Information Center

    Griffin, Robert E.; And Others

    This paper describes how electronic presentations are currently used by business people. Business people in the United States and Sweden were surveyed to determine how they are using the medium. A questionnaire was mailed to 506 business people in the United States (201 returned) and to 80 business people in Sweden (76 returned). Results are…

  7. The Present Status of the Antigonish Movement in Nova Scotia.

    ERIC Educational Resources Information Center

    Sowder, Ellie Mae

    A comprehensive case study is presented of the Antigonish Movement in eastern Nova Scotia. Originally founded to combat poverty and exploitation, it has functioned since 1929 under the extension department of St. Francis Xavier University, Antigonish. The Movement brought education into the lives of ordinary working people and introduced group…

  8. The Pierre Auger Observatory: Present Status and Future Prospects

    SciTech Connect

    Petrera, Sergio

    2005-10-12

    The Pierre Auger Observatory is in advanced stage of construction in the southern site of Malargue, Argentina. This progress report mainly focuses on hybrid events, a remarkable subset of cosmic ray events which are simultaneously detected by both Surface Detector and Fluorescence Detector subsystems. The hybrid method and its performances are presented.

  9. Towards Terahertz MMIC Amplifiers: Present Status and Trends

    NASA Technical Reports Server (NTRS)

    Samoska, Lorene

    2006-01-01

    This viewgraph presentation surveys the fastest Monolithic Millimeter-wave Integrated Circuit (MMIC) amplifiers to date; summarize previous solid state power amp results to date; reviews examples of MMICs, reviews Power vs. Gate periphery and frequency; Summarizes previous LNA results to date; reviews Noise figure results and trends toward higher frequency

  10. Neutrino oscillations: From a historical perspective to the present status

    NASA Astrophysics Data System (ADS)

    Bilenky, S.

    2016-07-01

    The history of neutrino mixing and oscillations is briefly presented. Basics of neutrino mixing and oscillations and convenient formalism of neutrino oscillations in vacuum are given. The role of neutrino in the Standard Model and the Weinberg mechanism of the generation of the Majorana neutrino masses are discussed.

  11. ET mapping for agricultural water management: present status and challenges

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Evapotranspiration (ET) is an essential component of the water balance. Remote sensing based agrometeorological models are presently most suited for estimating crop water use at both field and regional scales. Numerous ET algorithms have been developed to make use of remote sensing data acquired by ...

  12. Refractory status epilepticus and glutamic acid decarboxylase antibodies in adults: presentation, treatment and outcomes.

    PubMed

    Khawaja, Ayaz M; Vines, Brannon L; Miller, David W; Szaflarski, Jerzy P; Amara, Amy W

    2016-03-01

    Glutamic acid decarboxylase antibodies (GAD-Abs) have been implicated in refractory epilepsy. The association with refractory status epilepticus in adults has been rarely described. We discuss our experience in managing three adult patients who presented with refractory status epilepticus associated with GAD-Abs. Case series with retrospective chart and literature review. Three patients without pre-existing epilepsy who presented to our institution with generalized seizures between 2013 and 2014 were identified. Seizures proved refractory to first and second-line therapies and persisted beyond 24 hours. Patient 1 was a 22-year-old female who had elevated serum GAD-Ab titres at 0.49 mmol/l (normal: <0.02) and was treated with multiple immuno- and chemotherapies, with eventual partial seizure control. Patient 2 was a 61-year-old black female whose serum GAD-Ab titre was 0.08 mmol/l. EEG showed persistent generalized periodic discharges despite maximized therapy with anticonvulsants but no immunotherapy, resulting in withdrawal of care and discharge to nursing home. Patient 3 was a 50-year-old black female whose serum GAD-Ab titre was 0.08 mmol/l, and was discovered to have pulmonary sarcoidosis. Treatment with steroids and intravenous immunoglobulin resulted in seizure resolution. Due to the responsiveness to immunotherapy, there may be an association between GAD-Abs and refractory seizures, including refractory status epilepticus. Causation cannot be established since GAD-Abs may be elevated secondary to concurrent autoimmune diseases or formed de novo in response to GAD antigen exposure by neuronal injury. Based on this report and available literature, there may be a role for immuno- and chemotherapy in the management of refractory status epilepticus associated with GAD-Abs. PMID:26878120

  13. LMJ & PETAL Status and first experiments

    NASA Astrophysics Data System (ADS)

    Miquel, J.-L.

    2016-05-01

    The laser Megajoule (LMJ) facility is designed to provide the experimental capabilities to study High Energy Density Physics (HEDP). The LMJ is part of the Simulation Program, which combines improvement of physics models, high performance numerical simulation, and experimental validation. Since the operational commissioning of the LMJ, in October 2014, several experimental campaigns have been achieved. They have demonstrated the good performances of LMJ and demonstrated its aptitudes to perform experiments for the Simulation Program. The PETAL project consists in the addition of one short-pulse (ps) ultra- high-power, high-energy beam (kJ) to the LMJ facility. The first high energy test shots in the compressor stage of PETAL, performed in May 2015, have reached a power of 1.2 PW. PETAL will offer a combination of a very high intensity multi-petawatt beam, synchronized with the nanosecond beams of the LMJ. This combination will expand the LMJ experimental field in HEDP. LMJ-PETAL is open to the academic communities; the first experiments are planned in 2017.

  14. Present status of amniocentesis in intrauterine diagnosis of genetic defects.

    PubMed

    Nadler, H L; Gerbie, A

    1971-11-01

    Practical and scientific aspects of prenatal detection of genetic disorders is discussed. The indications for intrauterine detection of familial biochemical and particular chromosomal disorders require assessment of the risks of transabdominal amniocentesis and of the reliability of diagnosis. A high degree of experience in cultivating amniotic fluid cells and in performing diagnostic tests is required. The obstetrician performing the amniocentesis should be responsible for referring the family to a physician who will perform the abortion. A high-risk group for which amniocentesis may be especially important includes families in which 1 parent is a carrier of a chromosomal rearrangement and in which the woman is a known carrier of an X-linked recessive disorder so that sex determination is important. A moderate-risk group includes women who become pregnant after age 40 in which the risk of having a child with a chromosomal aberration is greater than 1%. A low-risk group includes women over 35 and women who have previously borne a child with trisomic Down's syndrome. The experience gained in over 300 patients suggests that transabdominal aminocentesis carries minimal risks to mother and fetus. Analyses of amniotic fluid obtained by amniocentesis have resulted in antenatal diagnoses of Pompe's disease (deficient alpha-1, 4-glucosidase), Tay-Sachs disease (deficient hexosaminidase A), mucopolysaccharidosis (quantitative and qualitative changes in mucopolysaccharides), methylmalonic aciduria (increased methylamlonate), and adrenogenital syndrome (increase 17-ketosteroids and pregnanetriol). There is a lack of consensus on the reliability of several of these diagnoses resulting from the direct analysis of amniotic fluid. Analyses of uncultured amniotic fluid cells have resulted in diagnoses of Pompe's disease (ultrastructural changes) and Tay-Sachs disease. Analyses of cultivated amniotic fluid cells have enabled diagnoses of galactosemia (deficient galactose-1

  15. Status of MICE, the international Muon Ionization Cooling Experiment

    SciTech Connect

    Sandstroem, R.

    2008-02-21

    An international experiment designed to demonstrate muon ionization cooling is being built at Rutherford Appleton Laboratory (RAL). The experiment consists of one cell of a Neutrino Factory cooling channel, along with upstream and downstream detectors to identify individual muons and measure their initial and final emittance to a precision of 0.1%. Magnetic design of the beamline and cooling channel are complete, and portions are under construction. This paper describes the experiment, including cooling channel hardware designs, fabrication status, and running plans.

  16. Numerical planetary and lunar ephemerides - Present status, precision and accuracies

    NASA Technical Reports Server (NTRS)

    Standish, E. Myles, Jr.

    1986-01-01

    Features of the emphemeris creation process are described with attention given to the equations of motion, the numerical integration, and the least-squares fitting process. Observational data are presented and ephemeride accuracies are estimated. It is believed that radio measurements, VLBI, occultations, and the Space Telescope and Hipparcos will improve ephemerides in the near future. Limitations to accuracy are considered as well as relativity features. The export procedure, by which an outside user may obtain and use the JPL ephemerides, is discussed.

  17. Present status of liquid metal research for a fusion reactor

    NASA Astrophysics Data System (ADS)

    Tabarés, Francisco L.

    2016-01-01

    Although the use of solid materials as targets of divertor plasmas in magnetic fusion research is accepted as the standard solution for the very challenging issue of power and particle handling in a fusion reactor, a generalized feeling that the present options chosen for ITER will not represent the best choice for a reactor is growing up. The problems found for tungsten, the present selection for the divertor target of ITER, in laboratory tests and in hot plasma fusion devices suggest so. Even in the absence of the strong neutron irradiation expected in a reactor, issues like surface melting, droplet ejection, surface cracking, dust generation, etc., call for alternative solutions in a long pulse, high efficient fusion energy-producing continuous machine. Fortunately enough, decades of research on plasma facing materials based on liquid metals (LMs) have produced a wealth of appealing ideas that could find practical application in the route to the realization of a commercial fusion power plant. The options presently available, although in a different degree of maturity, range from full coverage of the inner wall of the device with liquid metals, so that power and particle exhaust together with neutron shielding could be provided, to more conservative combinations of liquid metal films and conventional solid targets basically representing a sort of high performance, evaporative coating for the alleviation of the surface degradation issues found so far. In this work, an updated review of worldwide activities on LM research is presented, together with some open issues still remaining and some proposals based on simple physical considerations leading to the optimization of the most conservative alternatives.

  18. Micro-PIXE in plant sciences: Present status and perspectives

    NASA Astrophysics Data System (ADS)

    Mesjasz-Przybyłowicz, Jolanta; Przybyłowicz, Wojciech J.

    2002-04-01

    Fundamental processes of plant physiology are affected or regulated by mineral nutrients. Hence understanding the mechanisms of nutrient uptake and their functions in plant metabolism is of fundamental importance in both basic and applied plant studies. The present knowledge of ion uptake mechanisms is based mostly on techniques for bulk analysis, including analysis of small (mg-sized) samples but without spatially resolved results. On the other hand, advanced studies of elemental transport at a cellular level are conducted using techniques with high and very high spatial resolution, but with low sensitivity for elemental analysis. Thus the results obtained are usually restricted to macronutrients or elements present in high quantities. There is a high demand for studies of the functions of trace elements. In addition, it is known that, depending on their concentrations, elements can play different roles in plant life. Studies related to elemental deficiency and toxicity, as well as environmental pollution, require accurate, fully quantitative methods with good spatial resolution. Ideally, these studies should be conducted on organs and tissues as far down as the cellular level. This is where micro-PIXE has been applied until present and can in the near future play a much more important role. Progress is subject to closer collaboration between plant biologists and the PIXE community in terms of addressing problems of specimen preparation, refinement of analytical protocols such as quantitative elemental mapping and the interpretation of results.

  19. Adaptive optics high resolution spectroscopy: present status and future direction

    SciTech Connect

    Alcock, C; Angel, R; Ciarlo, D; Fugate, R O; Ge, J; Kuzmenko, P; Lloyd-Hart, M; Macintosh, B; Najita, J; Woolf, N

    1999-07-27

    High resolution spectroscopy experiments with visible adaptive optics (AO) telescopes at Starfire Optical Range and Mt. Wilson have demonstrated that spectral resolution can be routinely improved by a factor of - 10 over the seeing-limited case with no extra light losses at visible wavelengths. With large CCDs now available, a very wide wavelength range can be covered in a single exposure. In the near future, most large ground-based telescopes will be equipped with powerful A0 systems. Most of these systems are aimed primarily at diffraction-limited operation in the near IR. An exciting new opportunity will thus open up for high resolution IR spectroscopy. Immersion echelle gratings with much coarser grooves being developed by us at LLNL will play a critical role in achieving high spectral resolution with a compact and low cost IR cryogenically cooled spectrograph and simultaneous large wavelength coverage on relatively small IR detectors. We have constructed a new A0 optimized spectrograph at Steward Observatory to provide R = 200,000 in the optical, which is being commissioned at the Starfire Optical Range 3.5m telescope. We have completed the optical design of the LLNL IR Immersion Spectrograph (LISPEC) to take advantage of improved silicon etching technology. Key words: adaptive optics, spectroscopy, high resolution, immersion gratings

  20. Photoelectron diffraction and holography: Present status and future prospects

    SciTech Connect

    Fadley, C.S. |; Thevuthasan, S.; Kaduwela, A.P.

    1993-07-01

    Photoelectron diffraction and photoelectron holography, a newly developed variant of it, can provide a rich range of information concerning surface structure. These methods are sensitive to atomic type, chemical state, and spin state. The theoretical prediction of diffraction patterns is also well developed at both the single scattering and multiple scattering levels, and quantitative fits of experiment to theory can lead to structures with accuracies in the {plus_minus}0.03 {Angstrom} range. Direct structural information can also be derived from forward scattering in scanned-angle measurements at higher energies, path length differences contained in scanned-energy data at lower energies, and holographic inversions of data sets spanning some region in angle and energy space. Diffraction can also affect average photoelectron emission depths. Circular dichroism in core-level emission can be fruitfully interpreted in terms of photoelectron diffraction theory, as can measurements with spin-resolved core-spectra, and studies of surface magnetic structures and phase transitions should be possible with these methods. Synchrotron radiation is a key element of fully utilizing these techniques.

  1. Status and plans of the LUCIFER Experiment

    NASA Astrophysics Data System (ADS)

    Orio, F.

    2011-06-01

    Neutrinoless Double Beta Decay searches are the only way to give an answer to the neutrino mass nature, Dirac or Majorana. These experiments are extremely delicate and the greatest obstacle to improve their sensitivity is the background level that can be achieved. LUCIFER is a project, financed by a ERC-AdG, that would like to build a demonstrator of a technique based on the double read-out (scintillation light + heat) of ZnSe crystals used as bolometers. The goal is to reach a background lower than 0.001 counts/kg/keV/year. Along the way we would like to learn how practical is the enrichment of Se into 82Se, how efficient is the process of crystallization and how radiopure the crystals can be grown. In this talk we will discuss the properties of ZnSe crystals and sketch the layout of the project.

  2. History and present status of pulmonary metastasectomy in colorectal cancer.

    PubMed

    Treasure, Tom; Milošević, Mišel; Fiorentino, Francesca; Pfannschmidt, Joachim

    2014-10-28

    Clinical practice with respect to metastatic colorectal cancer differs from the other two most common cancers, breast and lung, in that routine surveillance is recommended with the specific intent of detecting liver and lung metastases and undertaking liver and lung resections for their removal. We trace the history of this approach to colorectal cancer by reviewing evidence for effectiveness from the 1950s to the present day. Our sources included published citation network analyses, the documented proposal for randomised trials, large systematic reviews, and meta-analysis of observational studies. The present consensus position has been adopted on the basis of a large number of observational studies but the randomised trials proposed in the 1980s and 1990s were either not done, or having been done, were not reported. Clinical opinion is the mainstay of current practice but in the absence of randomised trials there remains a possibility of selection bias. Randomised controlled trials (RCTs) are now routine before adoption of a new practice but RCTs are harder to run in evaluation of already established practice. One such trial is recruiting and shows that controlled trial are possible. PMID:25356017

  3. History and present status of pulmonary metastasectomy in colorectal cancer

    PubMed Central

    Treasure, Tom; Milošević, Mišel; Fiorentino, Francesca; Pfannschmidt, Joachim

    2014-01-01

    Clinical practice with respect to metastatic colorectal cancer differs from the other two most common cancers, breast and lung, in that routine surveillance is recommended with the specific intent of detecting liver and lung metastases and undertaking liver and lung resections for their removal. We trace the history of this approach to colorectal cancer by reviewing evidence for effectiveness from the 1950s to the present day. Our sources included published citation network analyses, the documented proposal for randomised trials, large systematic reviews, and meta-analysis of observational studies. The present consensus position has been adopted on the basis of a large number of observational studies but the randomised trials proposed in the 1980s and 1990s were either not done, or having been done, were not reported. Clinical opinion is the mainstay of current practice but in the absence of randomised trials there remains a possibility of selection bias. Randomised controlled trials (RCTs) are now routine before adoption of a new practice but RCTs are harder to run in evaluation of already established practice. One such trial is recruiting and shows that controlled trial are possible. PMID:25356017

  4. CRYRING@ESR: present status and future research

    NASA Astrophysics Data System (ADS)

    Lestinsky, M.; Bräuning-Demian, A.; Danared, H.; Engström, M.; Enders, W.; Fedotova, S.; Franzke, B.; Heinz, A.; Herfurth, F.; Källberg, A.; Kester, O.; Litvinov, Y.; Steck, M.; Reistad, D.; Simonsson, A.; Skeppstedt, Ö.; Stöhlker, T.; Vorobjev, G.; the CRYRING@ESR working Group

    2015-11-01

    The former storage ring CRYRING has been shipped from the Manne Siegbahn Laboratory in Stockholm to Darmstadt as a Swedish in-kind contribution to FAIR. At its new location downstream of ESR all ion species presently accessible in ESR can be transferred to CRYRING, in which ions with rigidities between 1.44 and 0.054 Tm can be stored. The original Swedish layout has been modified by reconfiguring the sequence of straight sections and by slightly increasing the circumference to ESR/2. Ions can be injected from ESR or from an independent 300 keV/u RFQ test injector. The instrumentation of the ring includes an RF drift tube system for acceleration and deceleration (1 T s-1, with a possibility for an upgrade to 7 T s-1), electron cooling, a free experimental section, and both fast and slow extraction of ions. We report on the present progress of this project, give a prospective timeline, and summarize the new research which will be enabled by this project. First beam for commissioning of the storage ring is expected for 2015, final bakeout to restore ultrahigh vacuum conditions in 2016 and ion beams injected through ESR in ˜2017.

  5. Geothermal activity in Italy: present status and future prospects

    SciTech Connect

    Carella, R.; Palmerini, C.G.; Stefani, G.C.; Verdiani, G.

    1985-01-01

    In the Italian Peninsula the Apennines separate a relatively cold Po-Adriatic-Ionian ''foredeep'' external belt from a warmer Tyrrhenian ''back-arc'' internal tensional belt. The latter i characterized by high geothermal heat flow together with conspicuous recent or present-day volcani phenomena. In this area, extending from Tuscany to Campania, lie the known steam- and waterdominated fields. Other ''warm'' areas are located on some Tyrrhenian islands. Within the ''cold'' external belt, interesting locations for low enthalpy utilizations can be found in the Po river valley, particularly in the eastern part near Ferrara and Abano. Since 1977 ENEL (National Electri Energy Agency) and AGIP (State Oil Company) have been jointly conducting geothermal activities in Italy, with the exception of the Tuscan geothermal area where ENEL operates on an exclusive basis. At present the areas surveyed cover about 8250 kmS. As of December 1983 the geothermal installed capacity was 456.2 MW (net capacity 340 MW) and low-temperature geothermal resources equivalent to 100,000 OET /yr were being used. The National Energy Plant (PEN), issued on 4 December 1981, forecast for the year 1990 a geothermal power increment of 200 MW /SUB e/ above the 449.1 MW /SUB e/ already installed. The target in the low enthalpy non-electric sector is to save 300,000 OET/yr by 1990. This paper describes the activities carried out from March 1975 to December 1983 and the main projects in progress.

  6. Cosmogenic radionuclides as a synchronisation tool - present status

    NASA Astrophysics Data System (ADS)

    Muscheler, Raimund; Adolphi, Florian; Mekhaldi, Florian; Mellström, Anette; Svensson, Anders; Aldahan, Ala; Possnert, Göran

    2014-05-01

    Changes in the flux of galactic cosmic rays into Earth's atmosphere produce variations in the production rates of cosmogenic radionuclides. The resulting globally synchronous signal in cosmogenic radionuclide records can be used to compare time scales and synchronise climate records. The most prominent example is the 14C wiggle match dating approach where variations in the atmospheric 14C concentration are used to match climate records and the tree-ring based part of the 14C calibration record. This approach can be extended to other cosmogenic radionuclide records such as 10Be time series provided that the different geochemical behaviour of 10Be and 14C is taken into account. Here we will present some recent results that illustrate the potential of using cosmogenic radionuclide records for comparing and synchronising different time scales. The focus will be on the last 50000 years where we will show examples how geomagnetic field, solar activity and unusual short-term cosmic ray changes can be used for comparing ice core, tree ring and sediment time scales. We will discuss some unexpected offsets between Greenland ice core and 14C time scale and we will examine how far back in time solar induced 10Be and 14C variations presently can be used to reliably synchronise ice core and 14C time scales.

  7. Turbulence modelling in CFD: Present status, future prospects

    NASA Technical Reports Server (NTRS)

    Launder, Brian E.

    1992-01-01

    Information is given in viewgraph form for turbulence modeling in computational fluid dynamics (CFD). The Eddy Viscosity Models (EVM), Algebraic Second Moment Closures (ASM), and Differential Second-Moment Closures (DSM) are considered. It is concluded that EVM's, ASM's, and DSM's will remain in use, though with a steady decline in importance of EVM's and ASM's in favor of DSM's. Improved versions of low-Re two-equation EVM's should lead to more reliable predictions of separated flows than are achievable at present. Further refinement of sub-models in second moment closures can be expected throughout this decade. There will be increasing attention given to interfacing SMC with higher order approaches such as LES, and an increased use of two-time-scale schemes providing distinct time scales for large and fairly small eddies.

  8. The Present Deployment Status of the MAGDAS Project

    NASA Astrophysics Data System (ADS)

    Maeda, G.; Yumoto, K.

    2012-12-01

    Since 2004, MAGDAS magnetometers have been deployed slowly but steadily throughout the world. The PI of the MAGDAS Project is Prof. K. Yumoto of the International Center for Space Weather Science and Education (Kyushu University). There are now 64 real time stations deployed throughout the world mainly in three key bands: 210 MM (Magnetic Meridian) Band, 96 MM Band, and Dip Equatorial Band. In this presentation, we summarize primarily the activities of the past 12 months for this project. This includes a new installation at Jayapura in Indonesia, and three new installations on the island of Sumatra (also Indonesia). In addition, a state-of-the-art MAGDAS 9 magnetometer was installed at Bac Lieu in the south of Vietnam.

  9. Immunotherapy for liver tumors: present status and future prospects

    PubMed Central

    Matar, Pablo; Alaniz, Laura; Rozados, Viviana; Aquino, Jorge B; Malvicini, Mariana; Atorrasagasti, Catalina; Gidekel, Manuel; Silva, Marcelo; Scharovsky, O Graciela; Mazzolini, Guillermo

    2009-01-01

    Increasing evidence suggests that immune responses are involved in the control of cancer and that the immune system can be manipulated in different ways to recognize and attack tumors. Progress in immune-based strategies has opened new therapeutic avenues using a number of techniques destined to eliminate malignant cells. In the present review, we overview current knowledge on the importance, successes and difficulties of immunotherapy in liver tumors, including preclinical data available in animal models and information from clinical trials carried out during the lasts years. This review shows that new options for the treatment of advanced liver tumors are urgently needed and that there is a ground for future advances in the field. PMID:19272130

  10. The Status of the Cms Experiment

    NASA Astrophysics Data System (ADS)

    Green, Dan

    The CMS experiment was completely assembled in the fall of 2008 after a decade of design, construction and installation. During the last two years, cosmic ray data were taken on a regular basis. These data have enabled CMS to align the detector components, both spatially and temporally. Initial use of muons has also established the relative alignment of the CMS tracking and muon systems. In addition, the CMS calorimetry has been crosschecked with test beam data, thus providing an initial energy calibration of CMS calorimetry to about 5%. The CMS magnet has been powered and field mapped. The trigger and data acquisition systems have been installed and run at full speed. The tiered data analysis system has been exercised at full design bandwidth for Tier0, Tier1 and Tier2 sites. Monte Carlo simulation of the CMS detector has been constructed at a detailed geometric level and has been tuned to test beam and other production data to provide a realistic model of the CMS detector prior to first collisions.

  11. The n3He Experiment: Current Status

    NASA Astrophysics Data System (ADS)

    McCrea, Mark; n3He Collaboration

    2014-09-01

    The n3He experiment aims to make a high precision measurement of the hadronic weak interaction in the reaction n-> +3 He --> p + T by measuring the parity violating asymmetry in the direction of proton emission relative to the neutron polarization direction. As the weak interaction is the only interaction to violate parity this allows us to extract the much smaller weak interaction effects from the larger strong interaction effects. The range of the asymmetry is estimated to be (- 9 . 5 --> 2 . 5) ×10-8 . The goal is to measure this asymmetry with an accuracy of 2 ×10-8 to provide a benchmark for modern effective field theory calculations. n3He will run at the SNS Fundamental Neutron Physics Beamline. The combined target and detector is a multiwire 3He ionization chamber. A super mirror polarizer will be used to polarize the incoming cold neutron beam, and a spin flipper will reverse the spin in a sequence to control for systematic effects.

  12. [Screening for prostate cancer: present status and future perspectives].

    PubMed

    Ito, Kazuto

    2014-12-01

    In Japan, about three fourth municiparities and 90% human dry dock (a thorough medical checkup) institutions provide a prostate specific antigen (PSA) testing as a screening tool for early detection of prostate cancer. However, the exposure of screening for prostate cancer is very low compared to developed Western countries. The merits of introducing PSA-based screening could be cause-specific mortality reduction and prevention of developing metastatic disease, which was recently confirmed by prospective randomized controlled trials. On the other hand, some men participating in the screening program may be of drawbacks in terms of overdetection and overtreatment. Therefore, providing a fact sheet on screening for prostate cancer and also providing an optimal screening system including more accurate cancer detection, minimally invasive treatment and active surveillance strategy, which can reduce overdetection, overtreatment, and loss of QOL due to treatment, would be very important. The merits of PSA screening will increase and the drawbacks will decrease in the future due to progress in the diagnostic modalities and treatment strategies. At present, a baseline consensus is to conduct PSA-based screening according to well-balanced guidelines published by the Japanese Urological Association. PMID:25518358

  13. EUV lithography development in Europe: present status and perspectives

    NASA Astrophysics Data System (ADS)

    Ceccotti, Tiberio

    2004-01-01

    According to the ISMT roadmap, Extreme Ultraviolet lithography (EUVL) is the most promising technology to reach the 45-nm node for industrial production and to satisfy the famous law of Moore beyond 2007. Already in 1998 the first European EUVL project (EUCLIDES) has been launched under the leadership of ASM Lithography. Shortly after that in 1999, the national R&D program PREUVE started in France to improve EUVL related technologies and to build the first experimental lithography bench (BEL) in Europe. Finally, in 2001, the main European industrial companies as well as academic and national laboratories have federated within the important MEDEA+ effort to overcome the main technological challenges and to industrialize EUVL in time. Indeed, one of the most important challenges of EUVL concerns the achievement of very powerful, clean and reliable sources. The present paper will give the current state of European EUVL source technology and an overview of the different approaches. Main results are reviewed and the remaining challenges are discussed.

  14. Present Status of the ILC Project and Development

    SciTech Connect

    Ross, M.; Walker, N.; Yamamoto, A.; /KEK, Tsukuba

    2011-09-01

    The Technical Design of the International Linear Collider (ILC) Project will be finished in late 2012. The Technical Design Report (TDR) will include a description of the updated design, with a cost estimate and a project plan, and the results of research and development (R & D) done in support of the ILC. Results from directed ILC R & D are used to reduce the cost and risk associated with the ILC design. We present a summary of key challenges and show how the global R & D effort has addressed them. The most important activity has been in pursuit of very high gradient superconducting RF linac technology. There has been excellent progress toward the goal of practical industrial production of niobium sheet-metal cavities with gradient performance in excess of 35 MV/m. In addition, three purpose-built beam test facilities have been constructed and used to study and demonstrate high current linac performance, electron-cloud beam dynamics and precision beam control. The report also includes a summary of component design studies and conventional facilities cost optimization design studies.

  15. Present Status and Future Developments in Proton Therapy

    NASA Astrophysics Data System (ADS)

    Smith, Alfred R.

    2009-07-01

    Within the past few years, interest in proton therapy has significantly increased. This interest has been generated by a number of factors including: 1) the reporting of positive clinical results using proton beams; 2) approval of reimbursement for delivery of proton therapy; 3) the success of hospital-based proton therapy centers; and 4) the availability of modern, integrated proton therapy technology for hospital-based facilities. In the United States, this increased interest has occurred particularly at the level of smaller academic hospitals, community medical centers, and large private practices; however, interest from large academic centers continues to be strong. Particular interest exists regarding smaller and less-expensive proton therapy systems, especially the so-called "single-room" systems. In this paper, the advantages and disadvantages of 1-room proton therapy systems will be discussed. The emphasis on smaller and cheaper proton therapy facilities has also generated interest in new proton-accelerating technologies such as superconducting cyclotrons and synchrocyclotrons, laser acceleration, and dielectric-wall accelerators. Superconducting magnets are also being developed to decrease the size and weight of isocentric gantries. Another important technical development is spot-beam scanning, which offers the ability to deliver intensity-modulated proton treatments (IMPT). IMPT has the potential to provide dose distributions that are superior to those for photon intensity modulation techniques (IMXT) and to improve clinical outcomes for patients undergoing cancer therapy. At the present time, only two facilities—one in Europe and one in the United States—have the ability to deliver IMPT treatments, however, within the next year or two several additional facilities are expected to achieve this capability.

  16. Present Status and Future Developments in Proton Therapy

    SciTech Connect

    Smith, Alfred R.

    2009-07-25

    Within the past few years, interest in proton therapy has significantly increased. This interest has been generated by a number of factors including: 1) the reporting of positive clinical results using proton beams; 2) approval of reimbursement for delivery of proton therapy; 3) the success of hospital-based proton therapy centers; and 4) the availability of modern, integrated proton therapy technology for hospital-based facilities. In the United States, this increased interest has occurred particularly at the level of smaller academic hospitals, community medical centers, and large private practices; however, interest from large academic centers continues to be strong. Particular interest exists regarding smaller and less-expensive proton therapy systems, especially the so-called 'single-room' systems. In this paper, the advantages and disadvantages of 1-room proton therapy systems will be discussed. The emphasis on smaller and cheaper proton therapy facilities has also generated interest in new proton-accelerating technologies such as superconducting cyclotrons and synchrocyclotrons, laser acceleration, and dielectric-wall accelerators. Superconducting magnets are also being developed to decrease the size and weight of isocentric gantries. Another important technical development is spot-beam scanning, which offers the ability to deliver intensity-modulated proton treatments (IMPT). IMPT has the potential to provide dose distributions that are superior to those for photon intensity modulation techniques (IMXT) and to improve clinical outcomes for patients undergoing cancer therapy. At the present time, only two facilities--one in Europe and one in the United States--have the ability to deliver IMPT treatments, however, within the next year or two several additional facilities are expected to achieve this capability.

  17. The molecular electronic device and the biochip computer: present status.

    PubMed

    Haddon, R C; Lamola, A A

    1985-04-01

    The idea that a single molecule might function as a self-contained electronic device has been of interest for some time. However, a fully integrated version--the biochip or the biocomputer, in which both production and assembly of molecular electronic components is achieved through biotechnology-is a relatively new concept that is currently attracting attention both within the scientific community and among the general public. In the present article we draw together some of the approaches being considered for the construction of such devices and delineate the revolutionary nature of the current proposals for molecular electronic devices (MEDs) and biochip computers (BCCs). With the silicon semiconductor conductor industry already in place and in view of the continuing successes of the lithographic process it seems appropriate to ask why the highly speculative MED or BCC has engendered such interest. In some respects the answer is paradigmatic as much as it is real. It is perhaps best stated as the promise of the realm of the molecular. Thus it is envisioned that devices will be constructed by assembly of individual molecular electronic components into arrays, thereby engineering from small upward rather than large downward as do current lithographic techniques. An important corollary of the construction technique is that the functional elements of such an array would be individual molecules rather than macroscopic ensembles. These two aspects of the MED/BCC--assembly of molecular arrays and individually accessible functional molecular units--are truly revolutionary. Both require scientific breakthroughs and the necessary principles, quite apart from the technology, remain essentially unknown. It is concluded that the advent of the MED/BCC still lies well before us. The twin criteria of utilization of individual molecules as functional elements and the assembly of such elements remains as elusive as ever. Biology engineers structures on the molecular scale but

  18. The Molecular Electronic Device and the Biochip Computer: Present Status

    NASA Astrophysics Data System (ADS)

    Haddon, R. C.; Lamola, A. A.

    1985-04-01

    The idea that a single molecule might function as a self-contained electronic device has been of interest for some time. However, a fully integrated version--the biochip or the biocomputer, in which both production and assembly of molecular electronic components is achieved through biotechnology--is a relatively new concept that is currently attracting attention both within the scientific community and among the general public. In the present article we draw together some of the approaches being considered for the construction of such devices and delineate the revolutionary nature of the current proposals for molecular electronic devices (MEDs) and biochip computers (BCCs). With the silicon semiconductor industry already in place and in view of the continuing successes of the lithographic process it seems appropriate to ask why the highly speculative MED or BCC has engendered such interest. In some respects the answer is paradigmatic as much as it is real. It is perhaps best stated as the promise of the realm of the molecular. Thus it is envisioned that devices will be constructed by assembly of individual molecular electronic components into arrays, thereby engineering from small upward rather than large downward as do current lithographic techniques. An important corollary of the construction technique is that the functional elements of such an array would be individual molecules rather than macroscopic ensembles. These two aspects of the MED/BCC--assembly of molecular arrays and individually accessible functional molecular units--are truly revolutionary. Both require scientific breakthroughs and the necessary principles, quite apart from the technology, remain essentially unknown. It is concluded that the advent of the MED/BCC still lies well before us. The twin criteria of utilization of individual molecules as functional elements and the assembly of such elements remains as elusive as ever. Biology engineers structures on the molecular scale but biomolecules

  19. The molecular electronic device and the biochip computer: present status.

    PubMed Central

    Haddon, R C; Lamola, A A

    1985-01-01

    The idea that a single molecule might function as a self-contained electronic device has been of interest for some time. However, a fully integrated version--the biochip or the biocomputer, in which both production and assembly of molecular electronic components is achieved through biotechnology-is a relatively new concept that is currently attracting attention both within the scientific community and among the general public. In the present article we draw together some of the approaches being considered for the construction of such devices and delineate the revolutionary nature of the current proposals for molecular electronic devices (MEDs) and biochip computers (BCCs). With the silicon semiconductor conductor industry already in place and in view of the continuing successes of the lithographic process it seems appropriate to ask why the highly speculative MED or BCC has engendered such interest. In some respects the answer is paradigmatic as much as it is real. It is perhaps best stated as the promise of the realm of the molecular. Thus it is envisioned that devices will be constructed by assembly of individual molecular electronic components into arrays, thereby engineering from small upward rather than large downward as do current lithographic techniques. An important corollary of the construction technique is that the functional elements of such an array would be individual molecules rather than macroscopic ensembles. These two aspects of the MED/BCC--assembly of molecular arrays and individually accessible functional molecular units--are truly revolutionary. Both require scientific breakthroughs and the necessary principles, quite apart from the technology, remain essentially unknown. It is concluded that the advent of the MED/BCC still lies well before us. The twin criteria of utilization of individual molecules as functional elements and the assembly of such elements remains as elusive as ever. Biology engineers structures on the molecular scale but

  20. CMS Tracker upgrade for HL-LHC: R&D plans, present status and perspectives

    NASA Astrophysics Data System (ADS)

    Ravera, F.

    2016-07-01

    During the high luminosity phase of the LHC (HL-LHC), the machine is expected to deliver an instantaneous luminosity of 5 ×1034cm-2s-1. A total of 3000 fb-1 of data is foreseen to be delivered, with the opening of new physics potential for the LHC experiments, but also new challenges from the point of view of both detector and electronics capabilities and radiation hardness. In order to maintain its physics reach, CMS will build a new Tracker, including a completely new Pixel Detector and Outer Tracker. The ongoing R&D activities on both pixel and strip sensors will be presented. The present status of the Inner and Outer Tracker projects will be illustrated, and the possible perspectives will be discussed.

  1. Status and Plan of the ISS-CREAM Experiment

    NASA Astrophysics Data System (ADS)

    Picot-Clemente, Nicolas; Iss-Cream Collaboration

    2016-03-01

    The Cosmic Ray Energetics and Mass (CREAM) project began as a balloon-borne experiment, which was flown successfully for 161 days in six flights over Antarctica. It was subsequently reconfigured for implementation on the International Space Station (ISS) to provide an order of magnitude increase in the exposure time with no atmospheric overburden. The ISS-CREAM instrument is configured of four subsystems: four layers of silicon charge detector (SCD) for charge measurements, top and bottom counting detectors (TCD/BCD) for electron/proton separation, a calorimeter (CAL) for energy measurements, and a boronated scintillator detector (BSD) for additional electron/proton distinction. CREAM is designed to investigate cosmic-ray origin, acceleration, and propagation by directly measuring individual particles with energy between 1012-1015eV and determining cosmic ray composition from protons to iron. The hardware was successfully tested, and remote monitoring and control capabilities were verified. It is scheduled for launch in 2016. The status and plan of the ISS-CREAM experiment will be presented.

  2. Status of U.S. FCEV and Infrastructure Learning Demonstration Project (Presentation)

    SciTech Connect

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C.; Saur, G.

    2011-03-01

    Presented at the Japan Hydrogen and Fuel Cell Demonstration Project (JHFC), 1 March 2011, Tokyo, Japan. This presentation summarizes the status of U.S. fuel cell electric vehicles and infrastructure learning demonstration project.

  3. Adolescent Sexuality Related Beliefs and Differences by Sexual Experience Status

    ERIC Educational Resources Information Center

    Tolma, Eleni L.; Oman, Roy F.; Vesely, Sara K.; Aspy, Cheryl B.; Rodine, Sharon; Marshall, LaDonna; Fluhr, Janene

    2007-01-01

    Purpose: To examine if attitudes toward premarital sex, beliefs about peer influence, and family communication about sexual relationships differ by sexual experience status. Methods: Data were collected from a randomly selected ethnically diverse youth sample (N = 1,318) residing in two Midwestern cities. The primary method used in data analysis…

  4. Research Status of IEC Experiments at NASA Marshall

    NASA Technical Reports Server (NTRS)

    Dobson, Chris; Hrbud, Ivana; Rodgers, Stephen L. (Technical Monitor)

    2002-01-01

    This presentation provides an overview of IEC (Inertial Electrostatic Confinement) research and experiments at NASA's Marshall Space Flight Center. Topics covered include: apparatus involvement, iec schematics, iec plasma images, iec deuterium experiments, thomson scattering, detector options and experiment results.

  5. Status of the Gamma Ray Polarimeter Experiment (GRAPE)

    NASA Astrophysics Data System (ADS)

    McConnell, Mark L.; Bloser, P. F.; Legere, J. S.; Macri, J. R.; Ryan, J. M.

    2006-09-01

    We present the current status of the gamma-ray polarimetry experiment (GRAPE) project to measure linear polarization in gamma-ray bursts and solar flares in the hard X-ray range (50-300 keV). Polarimetry measurements offer a new way to investigate physical geometries and emission mechanisms in high-energy astrophysical sources. Each GRAPE detector consists of an array of plastic scintillators and high-Z calorimeter crystals read out by a single multi-anode photomultiplier tube (MAPMT). X-ray photons Compton scatter in the plastic elements and are subsequently absorbed in the calorimeter elements, and the azimuthal scattering angle and total energy are recorded. The degree of asymmetry in the distribution of scatter angles reveals the degree of linear polarization in the incident X-rays. We present our latest laboratory test results and describe plans for a balloon flight of a prototype and for a full balloon-borne science payload. Monte Carlo simulations indicate that an array of 25 GRAPE detectors carried on a scientific balloon would be sensitive to polarization levels of 5% or less for a M5 solar flare in a 5 minute exposure, and to levels of 30% for gamma-ray bursts that can be expected to be observed every 10 days.

  6. Status of the Tavatron CDF and D0 experiments

    SciTech Connect

    Rolli, Simona

    2010-10-01

    The status of the Tevatron Collider is reviewed and highlights of the rich physics program carried out by the CDF and D0 experiments are presented. The Tevatron Collider has been performing remarkably well in the past few years and it is continuing to deliver record luminosity. The machine collides proton and anti-proton beams at an energy in the center of mass of 1.96 TeV, with average peak luminosity of 300E30 cm{sup -2}s{sup -1}. The total delivered luminosity is slightly above 9 fb{sup -1}. The CDF and D0 experiments have been collecting data with an average efficiency of 90%, while the experiments have enjoyed an annual doubling of the integrated luminosity delivered and recorded. This has led to an avalanche of new results from areas as diverse as QCD, top, searches for new physics and the area of electroweak symmetry breaking with particular focus on direct searches for the Higgs boson. The physics reach of the Tevatron is built on a mountain of measurements that confirm the ability of the Tevatron collaborations to use their detectors to discover new particles. Each measurement is of itself a significant result. Measurements begin with the largest cross section processes, those of B physics, but move on to processes with small branching ratios and backgrounds that are hard to distinguish from the signal. The measurement of Bs oscillations demonstrates the performance of the silicon tracking and vertexing. Discovery of single top production, WZ production, and evidence for the ZZ production in both leptonic and now hadronic modes provide the final base camp from which the Higgs summit is in sight. Processes such as single top and ZZ act as important messengers heralding the impending arrival of the Higgs. This journey through lower and lower cross section processes represents our approach to provide convincing evidence of these processes, first as discovery then as measurements that constrain the Standard Model.

  7. The Status and Recent Results of the Telescope Array Experiment

    NASA Astrophysics Data System (ADS)

    Yamazaki, Katsuya

    The Telescope Array (TA) is a cosmic ray observatory of the largest aperture in the northern hemisphere, located in a desert in the western part of Utah, U.S.A., to explore the origin of ultrahigh energy cosmic rays, photons, and neutrinos. The TA employs two types of detectors to observe air showers generated by cosmic rays in the atmosphere: the first is a "surface detector (SD)" of scintillation counters to measure shower particles on the ground, and the second is a "fluorescence detector (FD)" of telescopes installed in three stations to observe fluorescence light, caused by air shower particles, from the atmosphere above the SD array. The TA detectors have been in routine operation since May 2008. We measured the energy spectrum of cosmic rays with energy greater than 1018 eV from our first 4-year data. We found a clear suppression of comic ray intensity above 5 × 1019 eV. This feature is consistent with a theoretical prediction that cosmic rays lose energies due to interaction with cosmic microwave background photons during propagation in the intergalactic space. In this talk, We will present the status of the TA experiment and the recent results, including the energy spectrum, study of the primary mass composition, and searches for anisotropies in the arrival directions. We also briefly describe plans for further extensions.

  8. World-Wide Web in High-Energy Physics Experiments ‘A Status REPORT’

    NASA Astrophysics Data System (ADS)

    Dönszelmann, Marc

    This report presents the status of the use of World-Wide Web (WWW) in High Energy Physics (HEP) experiments. The use of WWW in general, for ‘Online Datataking Systems’ and for ‘Offline Analysis Systems’ is discussed. In each of these cases the current use and a possible outlook for the future is described. Statistics on the actual use of WWW in HEP experiments as well as its current problems and future needs are also presented.

  9. Boerhaave's syndrome: Experience with patients presenting later than 24 hours.

    PubMed

    Ganguly, Amit; Porwal, Manish; Khandeparkar, Jagdish

    2015-01-01

    Boerhaave's syndrome is the most sinister cause of esophageal perforation. Clinical presentation is vague. Diagnostic delays are frequent. As condition is rare therefore no consensus exists on management. A wide variety of management options are described in literature, each with its advantages and disadvantages. We present our experience of managing these cases which presented after 24 hr. Of onset of symptoms with emphasis on primary reinforced repair as first line surgical option. PMID:27522739

  10. Four-month-old infant with intussusception presenting as altered mental status

    PubMed Central

    Takagishi, Jennifer

    2014-01-01

    Objective: To remind pediatric care providers that an altered mental status can be the only presenting symptom for intussusception, a life-threatening diagnosis. Method: A case report that presents a unique presentation of intussusception: a 4-month old boy with neurological findings after a reported head injury. Conclusion: Diagnosis of intussusception in the pediatric population is highly dependent on its classical presenting signs and symptoms: sudden severe colicky abdominal pain, vomiting, and an abdominal mass in children between 3 months and 6 years of age. Consider that an altered mental status can be the only presenting symptom. PMID:27489664

  11. Present status of the NIJI-IV storage-ring free-electron lasers

    SciTech Connect

    Yamazaki, T.; Yamada, K.; Sei, N.

    1995-12-31

    The tunable region of the free-electron-laser (FEL) wavelength with the NIJI-IV system is now 348{approximately}595 nm. After the lasing at 352 nm in 1994, the quality of the electron beam stored in the ring has been improved further, and the highest peak intensity of the laser obtained so far is more than 300 times as high as that of the resonated spontaneous emission. The macro-temporal structure of the lasing has been greatly improved. Recently, a single-bunch injection system was completed, and the system has been installed in the injector linac, which is expected to increase the peak stored-beam current. The commissioning and the test of the new system is under way. The beam transporting system from the linac to the ring is also being modified by increasing the number of quadrupole magnets. The experiments related to the FEL in the ultraviolet wavelength region will be begun in this coming May. The results and the status of the FEL experiments will be presented at the Conference.

  12. My Experience. My Perspective. Transportation to Work Presents Problems

    ERIC Educational Resources Information Center

    Stegers, Markus

    2008-01-01

    Transportation challenges can often be one of the biggest stumbling blocks to having a successful vocational experience. The author presents a personal account of the difficulties people with disabilities encounter in trying to get themselves to their workplaces due to the limitations of various mobility services.

  13. Perceived Social Status and Learning Experiences in Social Cognitive Career Theory

    ERIC Educational Resources Information Center

    Thompson, Mindi N.; Dahling, Jason J.

    2012-01-01

    The purpose of this study was to test a model based on Social Cognitive Career Theory (Lent, Brown, & Hackett, 1994) that placed perceived social status as an antecedent of career-related learning experiences, self-efficacy, and outcome expectations. Gender was included in the present model and results indicated that gender related as expected to…

  14. GNSS Estimates of Vertical Land Motion at Tide Gauges: Brief History, Present Status and Current Challenges

    NASA Astrophysics Data System (ADS)

    Mitchum, G. T.

    2015-12-01

    Precise estimates of sea level change from tide gauges require precise knowledge of the vertical land motion at the tide gauges, as these signals can be comparable in magnitude. This is also true for estimates from satellite altimeters because the tide gauge data are needed to assess the temporal stability of the altimetric heights. The presentation will begin with a very brief review of early efforts to apply GNSS data to this problem. We will then present the current status of efforts (with some emphasis on the TIGA program) aimed at monitoring vertical motions at the global GLOSS sea level network and at the set of gauges that are deemed most useful for estimating the stability of satellite altimeters. This summary will document a tremendous amount of progress over the past decade or so, and continued progress seems likely. There are, however, two current challenges that we argue need to be addressed. First, completing the global network means expanding the network into much more challenging parts of the world. The GLOSS program has long experience with this problem while trying to complete the tide gauge network, and that experience should be very useful to the groups attempting to complete the GNSS network. Second, we will present an analysis based on the calculations used to estimate satellite altimeter stability that indicates that the uncertainties in the reference frame used for the GNSS data are possibly the dominant error when attempting to measure global sea level change. The scale rate error is of primary concern, with the error in the z-rate being a minor, but not insignificant, contributor. We will make this point via a set of simulations using varying levels of the scale rate and z-rate uncertainties; i.e., by doing a sensitivity analysis.

  15. Status of RAISE, the Rapid Acquisition Imaging Spectrograph Experiment

    NASA Astrophysics Data System (ADS)

    Laurent, Glenn T.; Hassler, D. M.; DeForest, C.; Ayres, T. R.; Davis, M.; De Pontieu, B.; Schuehle, U.; Warren, H.

    2013-07-01

    The Rapid Acquisition Imaging Spectrograph Experiment (RAISE) sounding rocket payload is a high speed scanning-slit imaging spectrograph designed to observe the dynamics and heating of the solar chromosphere and corona on time scales as short as 100 ms, with 1 arcsec spatial resolution and a velocity sensitivity of 1-2 km/s. The instrument is based on a new class of UV/EUV imaging spectrometers that use only two reflections to provide quasi-stigmatic performance simultaneously over multiple wavelengths and spatial fields. The design uses an off-axis parabolic telescope mirror to form a real image of the sun on the spectrometer entrance aperture. A slit then selects a portion of the solar image, passing its light onto a near-normal incidence toroidal grating, which re-images the spectrally dispersed radiation onto two array detectors. Two full spectral passbands over the same one-dimensional spatial field are recorded simultaneously with no scanning of the detectors or grating. The two different spectral bands (1st-order 1205-1243Å and 1526-1564Å) are imaged onto two intensified Active Pixel Sensor (APS) detectors whose focal planes are individually adjusted for optimized performance. The telescope and grating are coated with B4C to enhance short wavelength (2nd order) reflectance, enabling the instrument to record the brightest lines between 602-622Å and 761-780Å at the same time. RAISE reads out the full field of both detectors at 5-10 Hz, allowing us to record over 1,500 complete spectral observations in a single 5-minute rocket flight, opening up a new domain of high time resolution spectral imaging and spectroscopy. We present an overview of the project, a summary of the maiden flight results, and an update on instrument status.Abstract (2,250 Maximum Characters): The Rapid Acquisition Imaging Spectrograph Experiment (RAISE) sounding rocket payload is a high speed scanning-slit imaging spectrograph designed to observe the dynamics and heating of the solar

  16. The current status of orbital experiments for UHECR studies

    NASA Astrophysics Data System (ADS)

    Panasyuk, M. I.; Casolino, M.; Garipov, G. K.; Ebisuzaki, T.; Gorodetzky, P.; Khrenov, B. A.; Klimov, P. A.; Morozenko, V. S.; Sakaki, N.; Saprykin, O. A.; Sharakin, S. A.; Takizawa, Y.; Tkachev, L. G.; Yashin, I. V.; Zotov, M. Yu

    2015-08-01

    Two types of orbital detectors of extreme energy cosmic rays are being developed nowadays: (i) TUS and KLYPVE with reflecting optical systems (mirrors) and (ii) JEM-EUSO with high- transmittance Fresnel lenses. They will cover much larger areas than existing ground-based arrays and almost uniformly monitor the celestial sphere. The TUS detector is the pioneering mission developed in SINP MSU in cooperation with several Russian and foreign institutions. It has relatively small field of view (±4.5°), which corresponds to a ground area of 6.4 • 103 km2. The telescope consists of a Fresnel-type mirror-concentrator (∼ 2 m2) and a photo receiver (a matrix of 16 x 16 photomultiplier tubes). It is to be deployed on the Lomonosov satellite, and is currently at the final stage of preflight tests. Recently, SINP MSU began the KLYPVE project to be installed on board of the Russian segment of the ISS. The optical system of this detector contains a larger primary mirror (10 m2), which allows decreasing the energy threshold. The total effective field of view will be at least ±14° to exceed the annual exposure of the existing ground-based experiments. Several configurations of the detector are being currently considered. Finally, JEM-EUSO is a wide field of view (±30°) detector. The optics is composed of two curved double-sided Fresnel lenses with 2.65 m external diameter, a precision diffractive middle lens and a pupil. The ultraviolet photons are focused onto the focal surface, which consists of nearly 5000 multi-anode photomultipliers. It is developed by a large international collaboration. All three orbital detectors have multi-purpose character due to continuous monitoring of various atmospheric phenomena. The present status of development of the TUS and KLYPVE missions is reported, and a brief comparison of the projects with JEM-EUSO is given.

  17. RAISE (Rapid Acquisition Imaging Spectrograph Experiment): Results and Instrument Status

    NASA Astrophysics Data System (ADS)

    Laurent, Glenn T.; Hassler, Donald; DeForest, Craig; Ayres, Tom; Davis, Michael; DePontieu, Bart; Diller, Jed; Graham, Roy; Schule, Udo; Warren, Harry

    2015-04-01

    We present initial results from the successful November 2014 launch of the RAISE (Rapid Acquisition Imaging Spectrograph Experiment) sounding rocket program, including intensity maps, high-speed spectroheliograms and dopplergrams, as well as an update on instrument status. The RAISE sounding rocket payload is the fastest high-speed scanning-slit imaging spectrograph flown to date and is designed to observe the dynamics and heating of the solar chromosphere and corona on time scales as short as 100-200ms, with arcsecond spatial resolution and a velocity sensitivity of 1-2 km/s. The instrument is based on a class of UV/EUV imaging spectrometers that use only two reflections to provide quasi-stigmatic performance simultaneously over multiple wavelengths and spatial fields. The design uses an off-axis parabolic telescope mirror to form a real image of the sun on the spectrometer entrance aperture. A slit then selects a portion of the solar image, passing its light onto a near-normal incidence toroidal grating, which re-images the spectrally dispersed radiation onto two array detectors. Two full spectral passbands over the same one-dimensional spatial field are recorded simultaneously with no scanning of the detectors or grating. The two different spectral bands (1st-order 1205-1243Å and 1526-1564Å) are imaged onto two intensified Active Pixel Sensor (APS) detectors whose focal planes are individually adjusted for optimized performance. RAISE reads out the full field of both detectors at 5-10 Hz, allowing us to record over 1,500 complete spectral observations in a single 5-minute rocket flight, opening up a new domain of high time resolution spectral imaging and spectroscopy. RAISE is designed to study small-scale multithermal dynamics in active region (AR) loops, explore the strength, spectrum and location of high frequency waves in the solar atmosphere, and investigate the nature of transient brightenings in the chromospheric network.

  18. Status and perspective of the GERDA neutrinoless double beta decay experiment

    NASA Astrophysics Data System (ADS)

    Knöpfle, K. T.; Gerda Collaboration

    2012-09-01

    Gerda, the GERManium Detector Array [1], is a new double beta decay experiment which is currently under commissioning in the Infn National Gran Sasso Laboratory (Lngs), Italy. It is implementing a new shielding concept by operating bare Ge diodes - enriched in 76Ge - in high purity liquid argon supplemented by a water shield. The paper presents the status of the experiment, results from the commissioning, and a summary of planned future activities.

  19. First CUORE-0 Performance Results and Status of CUORE Experiment

    NASA Astrophysics Data System (ADS)

    Canonica, L.; Artusa, D. R.; Avignone, F. T.; Azzolini, O.; Balata, M.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Bloxham, T.; Brofferio, C.; Bucci, C.; Cai, X. Z.; Camacho, A.; Cao, X.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chiesa, D.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Datskov, V.; De Biasi, A.; Deninno, M. M.; Di Domizio, S.; di Vacri, M. L.; Ejzak, L.; Faccini, R.; Fang, D. Q.; Farach, H. A.; Faverzani, M.; Fernandes, G.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Goett, J.; Gorla, P.; Gotti, C.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Huang, H. Z.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kogler, L.; Kolomensky, Yu. G.; Lenz, D.; Li, Y. L.; Ligi, C.; Liu, X.; Ma, Y. G.; Maiano, C.; Maino, M.; Martinez, M.; Maruyama, R. H.; Mei, Y.; Moggi, N.; Morganti, S.; Napolitano, T.; Newman, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; O'Donnell, T.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Piperno, G.; Pira, C.; Pirro, S.; Previtali, E.; Rampazzo, V.; Rimondi, F.; Rosenfeld, C.; Rusconi, C.; Sala, E.; Sangiorgio, S.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Taffarello, L.; Tenconi, M.; Terranova, F.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Wielgus, L.; Wilson, J.; Wise, T.; Woodcraft, A.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, S.

    2014-09-01

    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay in Te. Observation of the process would unambiguously establish that neutrinos are Majorana particles as well as provide information about the absolute neutrino mass scale and mass hierarchy.The CUORE setup will consist of an array of 988 tellurium dioxide crystals (containing 206 kg of Te in total), operated as bolometers at a temperature of 10 mK. The experiment is now under construction at the Gran Sasso National Laboratory in Italy. As a first step towards CUORE, a tower (CUORE-0) has been assembled and is taking data. Here a detailed description of the CUORE-0 tower and its performance is reported. The status of the CUORE experiment and its expected sensitivity will then be discussed.

  20. Total sleep deprivation decreases flow experience and mood status

    PubMed Central

    Kaida, Kosuke; Niki, Kazuhisa

    2014-01-01

    Background The purpose of this study was to examine the effect of sleep deprivation on flow experience. Methods Sixteen healthy male volunteers of mean age 21.4±1.59 (21–24) years participated in two experimental conditions, ie, sleep-deprivation and normal sleep. In the sleep-deprived condition, participants stayed awake at home for 36 hours (from 8 am until 10 pm the next day) beginning on the day prior to an experimental day. In both conditions, participants carried out a simple reaction time (psychomotor vigilance) task and responded to a questionnaire measuring flow experience and mood status. Results Flow experience was reduced after one night of total sleep deprivation. Sleep loss also decreased positive mood, increased negative mood, and decreased psychomotor performance. Conclusion Sleep deprivation has a strong impact on mental and behavioral states associated with the maintenance of flow, namely subjective well-being. PMID:24376356

  1. DESIGN AND STATUS OF THE VISA II EXPERIMENT.

    SciTech Connect

    ANDONIAN,G.BABZIEN,MLBEN-ZVI,I.YAKIMENKO,Y.ET AL.

    2004-03-24

    VISA II is the follow-up project to the successful Visible to Infrared SASE Amplifier (VISA) experiment at the Accelerator Test Facility (ATF) in Brookhaven National Lab (BNL). This paper will report the motivation for and status of the two main experiments associated with the VISA II program. One goal of VISA II is to perform an experimental study of the physics of a chirped beam SASE FEL at the upgraded facilities of the ATF. This requires a linearization of the transport line to preserve energy chirping of the electron beam at injection. The other planned project is a strong bunch compression experiment, where the electron bunch is compressed in the chicane, and the dispersive beamline transport, allowing studies of deep saturation.

  2. Status of the AFP project in the ATLAS experiment

    NASA Astrophysics Data System (ADS)

    Taševský, Marek

    2015-04-01

    Status of the AFP project in the ATLAS experiment is summarized. The AFP system is composed of a tracker to detect intact, diffractively scattered protons, and of a time-of-flight detector serving to suppress background from pile-up interactions. The whole system, located around 210 m from the main ATLAS detector, is placed in Roman Pots which move detectors from and to the incident proton beams. A typical distance of the closest approach of the tracker to these beams is 2-3 mm. The main physics motivation lies in measuring diffractive processes in runs with not a very high amount of pile-up.

  3. Status of the AFP project in the ATLAS experiment

    SciTech Connect

    Taševský, Marek

    2015-04-10

    Status of the AFP project in the ATLAS experiment is summarized. The AFP system is composed of a tracker to detect intact, diffractively scattered protons, and of a time-of-flight detector serving to suppress background from pile-up interactions. The whole system, located around 210 m from the main ATLAS detector, is placed in Roman Pots which move detectors from and to the incident proton beams. A typical distance of the closest approach of the tracker to these beams is 2–3 mm. The main physics motivation lies in measuring diffractive processes in runs with not a very high amount of pile-up.

  4. Status of Theory and Experiment in Hadronic Parity Violation

    NASA Astrophysics Data System (ADS)

    Snow, W. M.; Ahmed, M. W.; Bowman, J. D.; Crawford, C.; Fomin, N.; Gao, H.; Gericke, M. T.; Gudkov, V.; Holstein, B. R.; Howell, C. R.; Huffman, P.; van Oers, W. T. H.; Penttilä, S.; Wu, Y. K.

    2016-02-01

    Hadronic parity violation uses quark-quark weak interactions to probe nonperturbative strong interaction dynamics through two nonperturbative QCD scales: ΛQCD and the fine-tuned MeV scales of NN bound states in low energy nuclear physics. The current and projected availability of high-intensity neutron and photon sources coupled with ongoing experiments and continuing developments in theoretical methods provide the opportunity to greatly expand our understanding of hadronic parity violation in few-nucleon systems. The current status of these efforts and future plans are discussed.

  5. Status of Magnetic Nozzle and Plasma Detachment Experiment

    SciTech Connect

    Chavers, D. Gregory; Dobson, Chris; Jones, Jonathan; Lee, Michael; Martin, Adam; Gregory, Judith; Cecil, Jim; Bengtson, Roger D.; Breizman, Boris; Arefiev, Alexey; Chang-Diaz, Franklin; Squire, Jared; Glover, Tim; McCaskill, Greg; Cassibry, Jason; Li Zhongmin

    2006-01-20

    High power plasma propulsion can move large payloads for orbit transfer, lunar missions, and beyond with large savings in fuel consumption owing to the high specific impulse. At high power, lifetime of the thruster becomes an issue. Electrodeless devices with magnetically guided plasma offer the advantage of long life since magnetic fields confine the plasma radially and keep it from impacting the material surfaces. For decades, concerns have been raised about the plasma remaining attached to the magnetic field and returning to the vehicle along the closed magnetic field lines. Recent analysis suggests that this may not be an issue if the magnetic field is properly shaped in the nozzle region and the plasma has sufficient energy density to stretch the magnetic field downstream. An experiment is being performed to test the theory regarding the MHD detachment scenario. The status of that experiment will be discussed in this paper.

  6. Design and status of the Mu2e experiment

    NASA Astrophysics Data System (ADS)

    Miscetti, Stefano

    2016-04-01

    The Mu2e experiment aims to measure the charged-lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The objective is to improve the previous measurement by four orders of magnitude with the use of a similar technique. For the conversion process, the signal will appear as a mono-energetic electron very close to the muon rest mass. In the Standard Model these process have negligible rates. However, in many Beyond the Standard Model scenarios their rates are within the reach of next generation experiments. In this paper, we explain the sensitivity to new physics scale and the complementarity of approach and reach provided by MU2E with respect to Mu3e and MEG upgrade. Mu2e experimental technique, design and status will be the focus of this paper.

  7. STATUS OF THE INTERNATIONAL MUON IONIZATION COOLING EXPERIMENT(MICE)

    SciTech Connect

    Zisman, Michael S.

    2007-07-18

    An international experiment to demonstrate muon ionization cooling is scheduled for beam at Rutherford Appleton Laboratory (RAL) in 2007. The experiment comprises one cell of the Study II cooling channel [1], along with upstream and downstream detectors to identify individual muons and measure their initial and final 6D phase-space parameters to a precision of 0.1%. Magnetic design of the beam line and cooling channel are complete and portions are under construction. The experiment will be described, including cooling channel hardware designs, fabrication status, and running plans. Phase 1 of the experiment will prepare the beam line and provide detector systems, including time-of-flight, Cherenkov, scintillating-fiber trackers and their spectrometer solenoids, and an electromagnetic calorimeter. The Phase 2 system will add the cooling channel components, including liquid-hydrogen absorbers embedded in superconducting Focus Coil solenoids, 201-MHz normal-conducting RF cavities, and their surrounding Coupling Coil solenoids. The MICE Collaboration goal is to complete the experiment by 2010; progress toward this is discussed.

  8. Present status and future outlook of LLW/ILW disposal in China

    SciTech Connect

    Luo Shanggeng; Li Xuequn

    1995-12-31

    Chinese economic development needs more energy. The Chinese government pays great attention to developing nuclear power. Chinese radwaste management policy; technical guidance of low and intermediate level waste (LLW/ILW) disposal; organization and responsibility of radwaste disposal; fund origin; LLW/ILW amount estimation, disposal development prospect, present status and future outlook, etc. are described in this paper.

  9. Trends in Creativity Research in Japan--History and Present Status.

    ERIC Educational Resources Information Center

    Onda, Akira

    1986-01-01

    The history and present status of creativity research in Japan is reviewed. Noted are research studies in the areas of Zen and creativity, the creativity of scientists and engineers, the measurement of creativity, education for creativity, and the creativity of the Japanese people. (DB)

  10. Present and future status of thermochemical cycles applied to fusion energy sources

    SciTech Connect

    Booth, L.A.; Cox, K.E.; Krakowski, R.A.; Pendergrass, J.H.

    1980-01-01

    This paper reviews the status of current research on thermochemical hydrogen production cycles and identifies the needs for advanced cycles and materials research. The Los Alamos Scientific Laboratory (LASL) bismuth sulfate thermochemical cycle is characterized, and fusion reactor blanket concepts for both inertial and magnetic confinement schemes are presented as thermal energy sources for process heat applications.

  11. Video-assisted thoracic surgery―the past, present status and the future

    PubMed Central

    Luh, Shi-ping; Liu, Hui-ping

    2006-01-01

    Video-assisted thoracic surgery (VATS) has developed very rapidly in these two decades, and has replaced conventional open thoracotomy as a standard procedure for some simple thoracic operations as well as an option or a complementary procedure for some other more complex operations. In this paper we will review its development history, the present status and the future perspectives. PMID:16421967

  12. United States National Hydrogen Fuel Cell Vehicle and Infrastructure Learning Demonstration - Status and Results (Presentation)

    SciTech Connect

    Wipke,K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Garbak, J.

    2009-03-06

    This presentation provides status and results for the United States National Hydrogen Fuel Cell Vehicle Learning Demonstration, including project objectives, partners, the National Renewable Energy Laboratory's role in the project and methodology, how to access complete results, and results of vehicle and infrastructure analysis.

  13. The Martian Radiation Environment Experiment -- Results and Status

    NASA Astrophysics Data System (ADS)

    Zeitlin, C.; Cleghorn, T. F.; Cucinotta, F. A.; Saganti, P.; Andersen, V.; Lee, K. T.; Pinsky, L. S.; Atwell, W.; Turner, R.

    2004-05-01

    Ionizing radiation in space presents a potentially serious health hazard to astronauts on long-duration missions. Missions that take humans outside the geomagnetosphere (which provides significant shielding for crews in low-Earth orbit) are of particular concern. A mission to Mars would expose a crew to a substantial radiation dose from high-energy heavy ions in the Galactic Cosmic Radiation (GCR). Though not expected to cause acute effects, such exposures might endanger the long-term health of crewmembers, leading to increased risk of late effects such as cancer and cataract. Since the biological effects of these ions are not well understood, NASA cannot yet specify career limits for deep-space missions. While ground-based research in radiobiology continues, it is necessary to characterize the radiation field on the Martian surface. This is determined by the radiation incident on the top of the Martian atmosphere, the transmission properties of the atmosphere, and the production of secondary particles (neutrons in particular) in the upper part of the surface. The Martian Radiation Environment Experiment (MARIE), aboard the 2001 Mars Odyssey spacecraft, has returned the first detailed measurements of the radiation field incident on the atmosphere. MARIE consists of a stack of silicon charged-particle detectors, designed to measure the nearly-constant flux of energetic Galactic Cosmic Rays (GCR) and intermittent Solar Particle Events (SPE). The detector is optimized for the detection of solar protons and helium in the energy range from 30 to 75 MeV/nucleon, though higher energies and heavier ions are also detected. Despite considerable uncertainties in data normalization, the measured dose agrees with model calculations, to an accuracy well within the (conservatively) estimated errors. As of this writing (Feb. 2004), MARIE is off, having sustained damage during the large Solar Particle Event of Oct. 29, 2003. Attempts to recover the instrument will resume in the

  14. Status of the International Muon Ionization Cooling Experiment (MICE)

    SciTech Connect

    Zisman, Michael S.; Zisman, Michael S.

    2007-02-02

    An international experiment to demonstrate muonionization cooling is scheduled for beam at RutherfordAppleton Laboratory (RAL) in 2007. The experimentcomprises one cell of the Study II cooling channel [1],along with upstream and downstream detectors to identifyindividual muons and measure their initial and final 6Dphase-space parameters to a precision of 0.1percent. Magneticdesign of the beam line and cooling channel are completeand portions are under construction. The experiment willbe described, including cooling channel hardware designs,fabrication status, and running plans. Phase 1 of theexperiment will prepare the beam line and providedetector systems, including time-of-flight, Cherenkov,scintillating-fiber trackers and their spectrometersolenoids, and an electromagnetic calorimeter. The Phase2 system will add the cooling channel components,including liquid-hydrogen absorbers embedded insuperconducting Focus Coil solenoids, 201-MHz normalconductingRF cavities, and their surrounding CouplingCoil solenoids. The MICE Collaboration goal is tocomplete the experiment by 2010; progress toward this isdiscussed.

  15. Construction Status of the Madison Plasma Dynamo Experiment

    NASA Astrophysics Data System (ADS)

    Wallace, John; Clark, Mike; Collins, Cami; Katz, Noam; Weisberg, Dave; Forest, Cary

    2011-10-01

    Construction of the Madison Plasma Dynamo Experiment (MPDX) is partially complete. This facility will be utilized to create large, un-magnetized, fast flowing, hot plasma for investigating magnetic field self-generation and flow driven MHD instabilities. A 3 meter diameter spherical vacuum chamber lined with a series of high strength samarium cobalt magnets will provide plasma confinement. The plasma will be stirred from the magnetized edge using electrodes to produce JxB flows. Plasma sources will include lanthanum hexaboride cathodes and electron cyclotron heating. This poster will describe the current status of the design and construction of the facility including laboratory infrastructure, cast aluminum vacuum chamber, magnets, stirring electrodes, sources and diagnostics. Construction is being funded by the NSF Major Research Instrumentation program.

  16. Status of Proof-of-principle Experiment for Coherent Electron Cooling

    SciTech Connect

    Pinayev, I; Ben-Zvi, I; Bengtsson, J; Elizarov, A; Fedotov, A V; Gassner, D M; Hao, Y; Kayran, D; Litvinenko, V; Mahler, G J; Meng, W; Roser, T; Sheehy, B; Than, R; Tuozzolo, J E; Wang, G; Webb, S D; Yakimenko, V; Bell, G I; Bruhwiler, D L; Ranjbar, V H; Schwartz, B T; Hutton, A; Krafft, G A; Poelker, M; Rimmer, R A; Kholopov, M A; Vobly, P

    2012-07-01

    Coherent electron cooling (CEC) has a potential to significantly boost luminosity of high-energy, high-intensity hadron colliders. To verify the concept we conduct proof-of-the-principle experiment at RHIC. In this paper, we describe the current experimental setup to be installed into 2 o'clock RHIC interaction regions. We present current design, status of equipment acquisition and estimates for the expected beam parameters.

  17. Clinical presentation and visual status of retinitis pigmentosa patients: a multicenter study in southwestern Nigeria

    PubMed Central

    Onakpoya, Oluwatoyin Helen; Adeoti, Caroline Olufunlayo; Oluleye, Tunji Sunday; Ajayi, Iyiade Adeseye; Majengbasan, Timothy; Olorundare, Olayemi Kolawole

    2016-01-01

    Background To review the visual status and clinical presentation of patients with retinitis pigmentosa (RP). Methodology Multicenter, retrospective, and analytical review was conducted of the visual status and clinical characteristics of patients with RP at first presentation from January 2007 to December 2011. Main outcome measure was the World Health Organization’s visual status classification in relation to sex and age at presentation. Data analysis by SPSS (version 15) and statistical significance was assumed at P<0.05. Results One hundred and ninety-two eyes of 96 patients with mean age of 39.08±18.5 years and mode of 25 years constituted the study population; 55 (57.3%) were males and 41 (42.7%) females. Loss of vision 67 (69.8%) and night blindness 56 (58.3%) were the leading symptoms. Twenty-one (21.9%) patients had a positive family history, with RP present in their siblings 15 (71.4%), grandparents 11 (52.3%), and parents 4 (19.4%). Forty (41.7%) were blind at presentation and 23 (24%) were visually impaired. Blindness in six (15%) patients was secondary to glaucoma. Retinal vascular narrowing and retinal pigmentary changes of varying severity were present in all patients. Thirty-five (36.5%) had maculopathy, 36 (37.5%) refractive error, 19 (20%) lenticular opacities, and eleven (11.5%) had glaucoma. RP was typical in 85 patients (88.5%). Older patients had higher rates of blindness at presentation (P=0.005); blindness and visual impairment rate at presentation were higher in males than females (P=0.029). Conclusion Clinical presentation with advanced diseases, higher blindness rate in older patients, sex-related difference in blindness/visual impairment rates, as well as high glaucoma blindness in RP patients requires urgent attention in southwestern Nigeria. PMID:27601870

  18. Pott puffy tumor in a 4-year-old boy presenting in status epilepticus.

    PubMed

    Strony, Robert J; Dula, David

    2007-11-01

    Pott puffy tumor is an osteomyelitis of the frontal bone with the development of a subperiosteal abscess manifesting as a puffy swelling of the forehead or scalp. It is believed to occur as a complication of frontal sinusitis. The modern antibiotic era has made it a rarely encountered entity. This case describes a 4-year-old boy who presented in status epilepticus secondary to Pott puffy tumor. PMID:18007214

  19. The library system of the DFVLR: Present status, planned reorganization, user possibilities

    NASA Technical Reports Server (NTRS)

    Sternemann, P.

    1985-01-01

    This paper gives an overview of the present status, planned alterations, and the scope of users of the DFVLR library, as well as a survey of library related activities outside of the library department. Attention is given to the tasks of the DFVLR which include research, assistance in planning and carrying out projects, and the construction and operation of large test installations, showing how they relate to demands on the library.

  20. Status and perspectives of the COBRA double-beta decay experiment

    NASA Astrophysics Data System (ADS)

    Wilson, J. R.; Cobra Collaboration

    2006-05-01

    The COBRA experiment is going to use a large amount of CdZnTe semiconductor detectors to perform a search for various double-beta-decay modes. The current status of the experiment is presented, as well as first results. Improved half-life limits for the ground-state transitions of 64Zn and 120Te for 0νβ +/EC and 0νECEC have been obtained and the rate of the 4-fold forbidden 113Cd decays has been measured. A short outlook on future activities is also given.

  1. Extreme Light Infrastructure Nuclear Physics (ELI-NP): Present status and perspectives

    NASA Astrophysics Data System (ADS)

    Zamfir, N. V.

    2016-05-01

    Extreme Light Infrastructure - Nuclear Physics (ELI-NP), a new Research Center under construction, will use extreme electromagnetic fields for nuclear physics research and will be operational in 2018. The status of the Project implementation will be presented. At ELI-NP, a high power laser system together with a very brilliant gamma beam are the two main research tools. Their targeted operational parameters will be described. The related experimental set-ups will be presented, together with the main directions of the research envisioned.

  2. The E and B EXperiment (EBEX); Progress and Status

    NASA Astrophysics Data System (ADS)

    Polsgrove, Daniel; EBEX Collaboration

    2007-12-01

    We report on the status of EBEX, a NASA-funded balloon-borne polarimeter designed to measure the B-mode polarization of the cosmic microwave background radiation. We will set a 2σ upper limit on the inflationary tensor-to-scalar ratio of r ≤ 0.03. This limit assumes a 14-day flight, a scan pattern covering 350 square degrees of the sky, and foreground subtraction to levels below detector noise. The instrument employs a 1.5 meter Gregorian-type telescope and 1472 bolometric transition edge sensor (TES) detectors distributed over two focal planes. Polarimetry is achieved with a rotating achromatic half wave plate (AHWP) and fixed polarizer. The AHWP is continuously rotated with a superconducting magnetic bearing (SMB). Sky signals will be observed in three bands centered at 150, 250 and 410 GHz, providing strong leverage against polarized dust foreground. Construction of the cryostat, gondola, primary and secondary mirrors is complete. Cryogenic testing of detectors and read-outs is underway, along with experiments verifying gondola orientation and pointing performance. A short-duration test flight employing 384 detectors on one focal plane is planned for 2008.

  3. Advanced Test Reactor Testing Experience: Past, Present and Future

    SciTech Connect

    Frances M. Marshall

    2005-04-01

    The Advanced Test Reactor (ATR), at the Idaho National Laboratory (INL), is one of the world’s premier test reactors for providing the capability for studying the effects of intense neutron and gamma radiation on reactor materials and fuels. The physical configuration of the ATR, a 4-leaf clover shape, allows the reactor to be operated at different power levels in the corner “lobes” to allow for different testing conditions for multiple simultaneous experiments. The combination of high flux (maximum thermal neutron fluxes of 1E15 neutrons per square centimeter per second and maximum fast [E>1.0 MeV] neutron fluxes of 5E14 neutrons per square centimeter per second) and large test volumes (up to 48" long and 5.0" diameter) provide unique testing opportunities. The current experiments in the ATR are for a variety of test sponsors -- US government, foreign governments, private researchers, and commercial companies needing neutron irradiation services. There are three basic types of test configurations in the ATR. The simplest configuration is the sealed static capsule, wherein the target material is placed in a capsule, or plate form, and the capsule is in direct contact with the primary coolant. The next level of complexity of an experiment is an instrumented lead experiment, which allows for active monitoring and control of experiment conditions during the irradiation. The highest level of complexity of experiment is the pressurized water loop experiment, in which the test sample can be subjected to the exact environment of a pressurized water reactor. For future research, some ATR modifications and enhancements are currently planned. This paper provides more details on some of the ATR capabilities, key design features, experiments, and future plans.

  4. Present status of PACS at Kyoto University Hospital: image workstation for clinical education

    NASA Astrophysics Data System (ADS)

    Minato, Kotaro; Komori, Masaru; Nakano, Yoshihisa; Okajima, Kaoru; Kimura, Ishu; Takahashi, Takashi; Konishi, Junji; Abe, Mituyuki; Gotoh, Yoshihiro; Sato, Kazuhiro

    1990-08-01

    The PAC system: KIDS (Kyoto University Hospital Image Database and Communication System) has been expanded to include several major digital imaging modalities such as X-ray CT, MRI, DSA and CR. The fiber optic high-speed local area network and the workstation with quick image handling are newly designed. The system (new KIDS) is intended to achieve a film-less environment in the department of radiology and to evaluate the feasibility of a hospital-wide PAC system. The present status of the system at the end of 1989 including a image workstation installed in a lecture hall for clinical education is described.

  5. Present status of the geochronology of the early Precambrian of South India

    NASA Technical Reports Server (NTRS)

    Gopalan, K.; Srinivasan, R.

    1988-01-01

    The present status of Precambrian geochronology of South India was summarized. Support was offered for Raith's conclusion of an extensive 3.3 to 3.4-Ga tonalite-forming event. Evidence that the Sargur supracrustal sequence predates this event, however, remains equivocal. The only reliably dated supracrustal rocks are the similar to 3.0-Ga Chitradurga acid volcanics, and these are separated from the older Bababudan supracrustals by a major gneiss-forming event. A major unsolved problem relates to the timing of the Sargur supracrustals in relation to the basal units of the Dharwar succession. An appeal was made for more geochronological work on South Indian samples.

  6. The present status and the future of the European VLBI Network

    NASA Astrophysics Data System (ADS)

    Lindqvist, Michael; Szomoru, Arpad

    2015-08-01

    The European VLBI Network has evolved significantly during recent years and as a result it is producing excellent science. This is of course of fundamental importance and the main motivation for further developments of the EVN. In order to meet the demands of the astronomers the EVN is making use of and driving technical progress. We will describe the present status of the array and outline some of the planned future technical directions and how it will complement the SKA. In addition, we will also show scientific highlights that have been obtained using the EVN and illustrate possible science areas in the future.

  7. Overview on collision processes of highly charged ions with atoms present status and problems

    SciTech Connect

    Janev, R.K.

    1983-05-01

    This paper provides a brief discussion on the present status of the collision physics of highly charged ions with atoms. The emphasis is on the main achievements in understanding and describing the most important collision processes, and as charge transfer, ionization and Auger-type processes, and even more on those open problems which, due either to their scientific or practical importance, represent challenges to current research in this field. The paper concentrates on general ideas and problems whose development and solutions have advanced or will advance our basic understanding of the collision dynamics of multiply charged ions with atoms.

  8. Hydrocarbon solubility and its migration processes: a look at the present status

    SciTech Connect

    Mamun, C.K.; Ohkuma, H.; Sepehrnoori, K.

    1985-12-01

    In this study we review the present status of knowledge of solubility of hydrocarbons and its implications on primary migration processes. The intent is to examine the solubility and the transportation mechanisms relevant to geopressured-geothermal reservoirs, although the discussion included here accommodates a wide range of related aspects. Influences of parameters associated with hydrocarbon (especially methane) solubility have been studied. We have sought to evaluate several primary hydrocarbon migration processes and to point out their attractive features as well as their limitations. A brief discussion of hydrocarbon generation processes is also included.

  9. The present status and future development of low noise amplifiers for satellite communications

    NASA Astrophysics Data System (ADS)

    Akinaga, W.; Handa, K.; Fujiki, Y.; Fukuda, S.; Haga, I.

    The LNAs for use in satellite communications have made remarkable progress in recent years. This paper describes the present status and future prospects of the two principal LNA types, the parametric LNA and the GaAs FET LNA, operating in the 2 GHz band through millimetric wavelength range, as regards their noise temperature characteristics. In a few years to come, the parametric LNA and the GaAs FET LNA will be coexistent, but the former will be restricted to the cryogenically cooled and the super-low-noise thermoelectrically cooled type, while the latter will occupy the majority of the LNAs for satellite communications use.

  10. Experiment SPHERE status 2006 and CR composition determination by means of Cherenkov light LDF

    NASA Astrophysics Data System (ADS)

    Antonov, R. A.; Anyuhina, A. M.; Bronvech, E. A.; Chernov, D. V.; Galkin, V. I.; Lubnin, A. A.; Pushkarev, D. A.; Sysoeva, T. I.; Shaulov, S. B.; Shihaliev, F. O.; Tkaczyk, W.; Finger, M.; Sonsky, M.

    2008-01-01

    The modern status of the SPHERE experiment and the method to determine the primary energy and the kind of the primary nuclear particles is presented. The SPHERE experiment is based on A.E.Chudakov's suggestion to use a new method for investigating the ultra high energy primary cosmic ray energy spectrum [A.E. Chudakov, Trudy conf. po cosm. lutcham, (in Russian), p.69, Yakutsk, 1972]. A small device lifted above the snow surface of the Earth detects the Cherenkov light of extensive air showers reflected from the surface. The relatively simple detector SPHERE-2 (spherical mirror 1.5 m diameter and retina of 100 pixels) is presented. The next plan of the SPHERE experiment is to start measurements of the cosmic ray spectrum in the energy range 10-10 eV above the snow surface of Lake Baikal.

  11. Students' Presentations: Does the Experience Change Their Views?

    ERIC Educational Resources Information Center

    Sander, Paul; Sanders, Lalage

    2005-01-01

    Introduction: Research has shown that students do not like student presentations, yet a case can be made for them. This study seeks to understand the effects that presentations have on students. Method: Within an action research framework, two repeated-measures studies were completed, one with students undertaking assessed presentations the other…

  12. Gyrotron Development in the EU for Present Fusion Experiments and for ITER

    SciTech Connect

    Thumm, M.; Alberti, S.; Hogge, J.-P.; Tran, M. Q.; Yovchev, I.; Arnold, A.; Bariou, D.; Giguet, E.; Lievin, C.; Dammertz, G.; Illy, S.; Jin, J.; Piosczyk, B.; Prinz, O.; Rzesnicki, T.; Yang, X.; Darbos, C.; Magne, R.; Gantenbein, G.

    2006-01-03

    The long term strategy of the EU in the field of gyrotrons in fusion plasma applications is based on two approaches: R and D in laboratories to develop advanced concepts and industrial development of state-of-the-art tubes for use in present experiments like TCV, Tore Supra (118 GHz, 0.5 MW, CW) and W7-X (140 GHz, 1 MW, CW). The results from these two approaches are then applied to the development of a coaxial cavity gyrotron operating at 170 GHz and delivering 2 MW-CW for the electron cyclotron wave system of ITER. This paper will recall the main achievements of this program and will outline the present status of the 170 GHz coaxial cavity gyrotron development.

  13. Past, present and future: experiences and lessons from telehealth projects

    PubMed Central

    Elder, Laurent; Clarke, Michael

    2007-01-01

    Information communications technology has been a focus of the work of the International Development Research Centre (IDRC) since 1970, when this organization was formed in Canada with the goal of helping to improve the health of people in developing countries (http://www.idrc.ca). In this article, we focus on the field of telemedicine in developing countries and its role in improving health, using examples from the experience of the IDRC. PMID:21673948

  14. Present and Future Capabilities of High Energy Density Experiments*

    NASA Astrophysics Data System (ADS)

    Matzen, M. Keith

    2002-04-01

    In recent years, experiments on high energy lasers and pulsed power facilities have successfully reached extreme conditions of temperature and pressure in the laboratory, allowing replication of conditions relevant to areas of high energy density (HED) plasma physics (for example, astrophysics, planetary interiors, stellar physics, and Inertial Confinement Fusion). Experiments in these areas are now routinely providing high quality data in the areas of high energy density hydrodynamics and implosions, radiation transport, and equation-of-state. Current facilities include pulsed-power accelerators, such as the Z facility at Sandia National Laboratories, and high-energy lasers, such as the 60-beam Omega laser at the Laboratory of Laser Energetics at Rochester, as well as other MA-class pulsed-power facilities and kJ-class lasers worldwide. These facilities routinely conduct experiments at radiation temperatures of 200 eV and pressures up to 40 MBar. New facilities, such as the National Ignition Facility (NIF) and the refurbished Z facility, will extend the experimental regimes to higher temperatures and densities. The National Petawatt laser initiative is examining the physics regimes that could be explored by coupling energetic short-pulse lasers (multi-kJ energies at ps pulse widths) to experiments on these large HED facilities. We will review capabilities of the existing HED facilities, highlight examples of recent experimental results in HED plasma physics, discuss new regimes that might be achievable on next-generation facilities (e.g. NIF and refurbished Z), and explore the potential applications resulting from coupling multi-PW laser pulses with HED plasmas produced on these facilities. *Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000.

  15. Testing General Relativity in the Solar System: Present Status and Possible Future Developments

    SciTech Connect

    Turyshev, Slava G.

    2010-07-12

    Series of recent experiments have successfully tested Einstein's general theory of relativity to a remarkable precision. Various experimental techniques were used to test relativistic gravity in the solar system namely spacecraft Doppler tracking, planetary ranging, lunar laser ranging, dedicated gravity experiments in space and many ground-based efforts. Here we review the foundations of general relativity, present recent progress in the tests of relativistic gravity, and discuss the advances in our understanding of fundamental physics that are anticipated in the near future.

  16. Status of the San Onofre neutrino oscillation experiment

    SciTech Connect

    Hertenberger, R.; Chen, M.; Henrikson, H.; Mascarenhas, M.

    1993-10-01

    The San Onofre experiment is designed to investigate neutrino oscillations in the parameter space suggested by the atmospheric neutrino problem. A liquid-scintillator-based 12-ton detector will be installed at 650 m from the two units of the San Onofre power reactor. For the detection of the {anti v}{sub e}-induced inverse beta decay reaction a novel four-fold coincidence method is used allowing effective suppression of background at the relatively low shallow depth of 25 mwe. We report on the experimental method and demonstrate its feasibility by presenting results from recent test experiments performed with a prototype detector in the Tendon Gallery of the San Onofre Unit 2 reactor.

  17. Fens and floodplains of the temperate zone: Present status, threats, conservation and restoration

    USGS Publications Warehouse

    Van Diggelen, R.; Middleton, B.; Bakker, J.; Grootjans, A.; Wassen, M.

    2006-01-01

    This Special Feature focuses on lowland fens and flood plains. In this introduction we discuss the most important mire-related terms, present status, threats and conservation and restoration attempts. Floodplains and especially lowland fens are rare and vulnerable ecosystems. They are highly threatened all over the world because of direct conversion to agricultural land and especially the lack of appropriate management and altered catchment hydrology. Finally we present a framework for the conservation and restoration of these ecosystems. This consists of (1) optimising abiotic conditions; (2) safeguarding propagule availability of the target species; (3) creating and maintaining conditions for (re)establishment of these species, and (4) appropriate management to keep the conditions suitable. ?? IAVS; Opulus Press.

  18. Wearable system-on-a-chip UWB radar for contact-less cardiopulmonary monitoring: present status.

    PubMed

    Zito, D; Pepe, D; Mincica, M; Zito, F; De Rossi, D; Lanata, A; Scilingo, E P; Tognetti, A

    2008-01-01

    The present status of the project aimed at the realization of an innovative wearable system-on-chip UWB radar for the cardiopulmonary monitoring is presented. The overall system consists of a wearable wireless interface including a fully integrated UWB radar for the detection of the heart beat and breath rates, and a IEEE 802.15.4 ZigBee low-power radio interface. The principle of operation of the UWB radar for the monitoring of the heart wall is summarized. With respect to the prior art, this paper reports the results of the experimental characterization of the intra-body channel loss, which has been carried out successfully in order to validate the theoretical model employed for the radar system analysis. Moreover, the main building blocks of the radar have been manufactured in 90 nm CMOS technology by ST-Microelectronics and the relevant performance are resulted in excellent agreement with those expected by post-layout simulations. PMID:19163907

  19. Present status of GaAs. [including space processing and solid state applications

    NASA Technical Reports Server (NTRS)

    Gatos, H. C.; Lagowski, J.; Jastrzebski, L.

    1979-01-01

    An extensive literature survey on GaAs was carried out for the period December 31, 1970, to December 31, 1977. The increasing interest in GaAs device structures increased steadily during that period. The leading research and development centers and the specific areas of interest were identified. A workshop on GaAs was held in November 1977 to assess the present status of melt-grown GaAs and the existing needs for reliable chemical, structural, and electronic characterization methods. It was concluded that the present available bulk GaAs crystals are of poor quality and that GaAs technology is lagging demonstrated or potentially feasible GaAs devices and systems.

  20. Thermal hydraulic codes for LWR safety analysis - present status and future perspective

    SciTech Connect

    Staedtke, H.

    1997-07-01

    The aim of the present paper is to give a review on the current status and future perspective of present best-estimate Thermal Hydraulic codes. Reference is made to internationally well-established codes which have reached a certain state of maturity. The first part of the paper deals with the common basic code features with respect to the physical modelling and their numerical methods used to describe complex two-phase flow and heat transfer processes. The general predictive capabilities are summarized identifying some remaining code deficiencies and their underlying limitations. The second part discusses various areas including physical modelling, numerical techniques and informatic structure where the codes could be substantially improved.

  1. The NUSTAR program at FAIR. Overview and present status of the project

    NASA Astrophysics Data System (ADS)

    Herlert, Alexander

    2014-04-01

    The NUSTAR Collaboration brings together several hundred scientists to form one of the four scientific pillars of the future FAIR facility. NUSTAR aims at the exploitation of intense radioactive beams with energies up to 1.5 GeV/u in order to explore nuclei with large neutron or proton excess. The project has evolved over the last years and now reached a state where a large fraction of the core program is financed, partly built, and even ready for operation. With the signing of the FAIR convention in 2010 and the start of construction, the sub-projects in NUSTAR gain momentum and look forward to commissioning and first beams in this decade. The present status of the project will be presented, focusing on the instrumentation to be applied in the various experimental areas behind the Super-FRS fragment separator, which is the central instrument of NUSTAR.

  2. Presentation of endometriosis to general surgeons: a 10-year experience.

    PubMed

    Singh, K K; Lessells, A M; Adam, D J; Jordan, C; Miles, W F; Macintyre, I M; Greig, J D

    1995-10-01

    The presentation and management of 24 patients with endometriosis (median age 34 (range 21-68)years) presenting to general surgeons over a period of 10 years (1985-1994) was reviewed. Patients presented with an abdominal wall swelling related to a previous Pfannenstiel incision (seven patients), umbilical swelling (four), inguinal canal swelling (two), incidentally following appendicectomy (five), terminal ileal obstruction (two), rectal bleeding (two) and urinary symptoms (two). Endometriosis was not suspected in most patients but was confirmed by surgical excision or resection with minimal morbidity. No recurrence occurred during a median follow-up of 53 (range 9-113) months. Endometriosis is a disease rarely seen by general surgeons and is often diagnosed incidentally or on histological examination. Cyclical symptoms associated with menstruation are present in 50 per cent of patients and should suggest the diagnosis in those presenting with scar-related and/or subcutaneous swellings. Simple excision or resection of the presenting lesion provides adequate treatment but, since pelvic endometriosis may be present, referral to a gynaecologist is recommended in every case. PMID:7489161

  3. Experiences with Two Reliability Data Collection Efforts (Presentation)

    SciTech Connect

    Sheng, S.; Lantz, E.

    2013-08-01

    This presentation, given by NREL at the Wind Reliability Experts Meeting in Albuquerque, New Mexico, outlines the causes of wind plant operational expenditures and gearbox failures and describes NREL's efforts to create a gearbox failure database.

  4. High-energy synchrotron radiation x-ray microscopy: Present status and future prospects

    SciTech Connect

    Jones, K.W.; Gordon, B.M.; Spanne, P. ); Rivers, M.L.; Sutton, S.R. )

    1991-01-01

    High-energy radiation synchrotron x-ray microscopy is used to characterize materials of importance to the chemical and materials sciences and chemical engineering. The x-ray microscope (XRM) forms images of elemental distributions fluorescent x rays or images of mass distributions by measurement of the linear attenuation coefficient of the material. Distributions of sections through materials are obtained non-destructively using the technique of computed microtomography. The energy range of the x rays used for the XRM ranges from a few keV at the minimum value to more than 100 keV, which is sufficient to excite the K-edge of all naturally occurring elements. The work in progress at the Brookhaven NSLS X26 and X17 XRM is described in order to show the current status of the XRM. While there are many possible approaches to the XRM instrumentation, this instrument gives state-of-the-art performance in most respects and serves as a reasonable example of the present status of the instrumentation in terms of the spatial resolution and minimum detection limits obtainable. The examples of applications cited give an idea of the types of research fields that are currently under investigation. They can be used to illustrate how the field of x-ray microscopy will benefit from the use of bending magnets and insertion devices at the Advanced Photon Source. 8 refs., 5 figs.

  5. Recent Status of the T2K Experiment

    NASA Astrophysics Data System (ADS)

    Kutter, Thomas

    2010-10-01

    The T2K (Tokai to Kamioka) long baseline neutrino oscillation experiment has been constructed to search for the appearance of electron neutrinos in a pure beam of muon neutrinos, thereby measuring theta-13, the last unknown mixing angle in the lepton sector. T2K physics goals also include precision measurements of muon neutrino disappearance and the measurements of neutrino interactions at neutrino energies of ˜1GeV. The first physics data were collected from January to June 2010 and data analysis is in progress. I will review the physics reach of T2K, provide an overview of the experimental setup and present the performance of the accelerator produced neutrino beam as well as the near and far detectors. The presentation will conclude with a description of the analysis strategy and recent progress.

  6. The clinical presentation of celiac disease: experiences from northeastern iran.

    PubMed

    Ganji, Azita; Esmaielzadeh, Abbas; Aafzal Aghayee, Mehdi; Goshayeshi, Ladan; Ghaffarzadegan, Kamran

    2014-04-01

    BACKGROUND This study aimed to explore demographic characteristics and clinical presentations of celiac disease (CD) in Northeastern Iran. METHODS This was a cross-sectional retrospective study of 193 adults with CD who presented to Mashhad University Gastroenterology Clinic between 2008 and 2013. Patient data that included mode of presentation and the presence of any concomitant illnesses were collected. Intestinal biopsy and serum anti-tissue transglutaminase (anti-tTG) were used for diagnosis. Mucosal lesions were classified according to modified Marsh classification. RESULTS Overall, 132 females and 61 males, with a mean age at diagnosis of 32.6 ± 13.2 years were included. The patient's chief complaints in order of decreasing frequency were dyspepsia (24.6%), diarrhea (20%), anemia (12.8%), and flatulence (7.2%). Bone disease was seen (osteopenia, osteoporosis) in 30% of patients. A positive family history of CD was found in 17.9% of cases. There were 64% who had serum anti-tTG >200 units/ml and 78% had a Marsh classification grade 3 on duodenal biopsy. The histology grade (Marsh) did not show any correlation with anti-tTG serum levels, age, body mass index (BMI) or hemoglobin levels. CONCLUSION In Northeastern Iran, CD was seen more commonly in females and with non-diarrheal presentations. Abdominal discomfort, anemia and bone disease were most common primary presentations in this area. Histology grade showed no significant correlation with level of anti-tTG, BMI or hemoglobin levels. We suggest screening for CD in unexplained abdominal discomfort, bone disease and anemia. PMID:24872868

  7. Description and status of NASA-LeRC/DOE photovoltaic applications systems experiments

    NASA Technical Reports Server (NTRS)

    Ratajczak, A. F.

    1978-01-01

    In its role of supporting the DOE Photovoltaic Program, the NASA-Lewis Research Center has designed, fabricated and installed 16 geographically dispersed photovoltaic systems. These systems are powering a refrigerator, highway warning sign, forest lookout towers, remote weather stations, a water chiller at a visitor center, and insect survey traps. Each of these systems is described in terms of load requirements, solar array and battery size, and instrumentation and controls. Operational experience is described and present status is given for each system. The P/V power systems have proven to be highly reliable with almost no problems with modules and very few problems overall

  8. [Two cases of schizophrenia presenting with 'solar experience': the 'polysolar experience' and its progression].

    PubMed

    Harashima, Kanoko; Kobayashi, Toshiyuki; Kikuchi, Senichiro; Okajima, Yoshiro; Kato, Satoshi

    2010-01-01

    The 'solar experience' as an abnormal experience of schizophrenia in which patients directly experience the sun itself was first described by Miyamoto in 1974. Patients have delusions of the sun dying, hallucinations of the sun, and even believe that they become the sun. The patient may draw pictures of the sun similar to Edvard Munch's famous painting "The Sun". Miyamoto explained the progression of the solar experience as follows: (1) in the early stage of schizophrenia, patients believe that the sun falls or dies; (2) in the midst of the illness, they occupy the position of the sun in their delusions; and (3) in the recovery stage, they see or draw the sun against a scenic background, indicating that they no longer perceive themselves to be at the center of the world. Because of the absolute centrality of the sun, Miyamoto noted that the patient never experiences multiple suns (a 'polysolar experience'). However, in his book Memoirs of My Nervous Illness (original German title: Denkwürdigkeiten eines Nervenkranken), Daniel Paul Schreber described that he saw two suns. In this paper, the authors report two patients with schizophrenia who presented with a solar experience. Patient 1 was a man in his early forties. Fourteen years before his 'polysolar experience', he had attempted suicide, developed stupor, and was diagnosed with depression. However, he sometimes exhibited cenestopathy. Three years before the experience, he developed catatonic stupor and auditory hallucinations, and his diagnosis was changed to schizophrenia. After two months of hospitalization, the patient, in partial remission, was discharged. Ten months later, he saw two fragments tumble down from the sun, which he described as sons of the sun. Thereafter, his behavior became erratic, which led to a third hospitalization. In the recovery phase, the patient drew a picture of a large sun covering the entire piece of drawing paper and another of the sun set in scenery. Patient 2 was a married

  9. Present status of the Bevalac and design outline of proposed medical accelerator

    SciTech Connect

    Gough, R.A.

    1986-03-01

    The Bevalac currently supports a strong and diverse program of scientific research with beams of relativistic heavy ions in the Biomedical and Nuclear Sciences. These programs utilize ions throughout the Periodic Table that range in energy from a few MeV to 2 GeV/nucleon, including radioactive secondary beams, such as neon-19. This paper first provides a brief overview of the Bevalac, its present operational status and the accelerator improvement program, followed by a rationale for the proposed construction of a hospital-based modern synchrotron dedicated to applications in Biomedicine, including the radiotherapeutic treatment of cancer and other human disorders. An outline of the proposed design for the new machine is given, including discussion of the design philosophy, a review of major accelerator components, and the expected performance and operating characteristics.

  10. A survey on clinical presentation and nutritional status of infants with suspected cow' milk allergy

    PubMed Central

    2010-01-01

    Background Cow's milk is the most common food allergen in infants and the diagnosis of cow's milk allergy is difficult, even with the use of several diagnostic tests. Therefore, elimination diets and challenge tests are essential for the diagnosis and treatment of this disorder. The aim of this study is to report the clinical presentation and nutritional status of children evaluated by pediatric gastroenterologists for the assessment of symptoms suggestive of cow's milk allergy. Methods An observational cross-sectional study was performed among 9,478 patients evaluated by 30 pediatric gastroenterologists for 40 days in 5 different geographical regions in Brazil. Clinical data were collected from patients with symptoms suggestive of cow's milk allergy. The nutritional status of infants (age ≤ 24 months) seen for the first time was evaluated according to z-scores for weight-for-age, weight-for-height, and height-for-age. Epi-Info (CDC-NCHS, 2000) software was used to calculate z-scores. Results The prevalence of suspected cow's milk allergy in the study population was 5.4% (513/9,478), and the incidence was 2.2% (211/9,478). Among 159 infants seen at first evaluation, 15.1% presented with a low weight-for-age z score (< -2.0 standard deviation - SD), 8.7% with a low weight-for-height z score (< -2.0 SD), and 23.9% with a low height-for-age z score (< -2.0 SD). Conclusion The high prevalence of nutritional deficits among infants with symptoms suggestive of cow's milk allergy indicates that effective elimination diets should be prescribed to control allergy symptoms and to prevent or treat malnutrition. PMID:20416046