WorldWideScience

Sample records for echcentre doteccd experiments

  1. GRAAL experiment; Experience GRAAL

    Energy Technology Data Exchange (ETDEWEB)

    Ajaka, J.; Berrier-Ronsin, G.; Didelez, J.P. [Experimental Research Division, Inst. de Physique Nucleaire, Paris-11 Univ., 91 - Orsay (France)] [and others

    1999-11-01

    GRAAL experiment installed a high energy up to 1.5 GeV tagged and polarized photon beam at the ESRF (European Synchrotron Radiation Facility) in Grenoble. The beam is produced by backscattering a laser beam of the electron beam of the ESRF. This beam is used to study the photoproduction of mesons on liquid hydrogen target. From October 1996 until May 1997 data taking was performed to produce {eta} mesons on hydrogen from threshold to 1100 MeV. The extraction of beam asymmetry {Sigma} in {eta} photoproduction is in preparation for publication. The analysis of {pi}{sup 0} and 2{pi}{sup 0} photoproduction is in progress and the cross sections of the three channels are under analysis. In September 1997, the tests of kaon photoproduction and detection is being started with photon beam of energy up to 1500 MeV. (authors) 2 figs.

  2. OPERA experiment

    International Nuclear Information System (INIS)

    OPERA is an accelerator experiment designed to explore Super-Kamiokande suggested ????? oscillation region in CNGS beam from CERN to LNGS. The key technique in OPERA is modern emulsion read out which applied to CHORUS and DONUT experiments. ECC technique which used in DONUT and OPERA has good modularity to enlarge apparatus for future Neutrino Factory experiments

  3. Field Experiences

    Science.gov (United States)

    Field observations and field experiences have traditionally been at the core of geoscience instruction. This session was designed to allow the entire GSA community to come together to share and discuss both traditional and emerging roles of field experiences in teaching geosciences. This site provides a searchable collection of posters about field experiences from a session at the 2004 GSA annual meeting.

  4. Psychology Experiments.

    Science.gov (United States)

    McGraw, Ken; Tew, Mark D.; Williams, John E.

    2001-01-01

    A goal of the PsychExperiments project was to reduce the financial burden on psychology departments for hardware/software used in their laboratories. In its third year, the PsychExperiments site now hosts 39 experiments. Over 200 classrooms worldwide have signed up as official site users and there have been nearly 10,000 data sessions conducted.…

  5. OPERA experiment

    CERN Document Server

    Komatsu, M

    2003-01-01

    OPERA is an accelerator experiment designed to explore Super- Kamiokande suggested nu//mu arrow left right nu//tau oscillation region in CNGS beam from CERN to LNGS. The key technique in OPERA is modern emulsion read out which applied to CHORUS and DONUT experiments. ECC technique which used in DONUT and OPERA has good modularity to enlarge apparatus for future Neutrino Factory experiments.

  6. TRIO experiment

    International Nuclear Information System (INIS)

    The TRIO experiment is a test of in-situ tritium recovery and heat transfer performance of a miniaturized solid breeder blanket assembly. The assembly (capsule) was monitored for temperature and neutron flux profiles during irradiation and a sweep gas flowed through the capsule to an anaytical train wherein the amounts of tritium in its various chemical forms were determined. The capsule was designed to operate at different temperatures and sweep gas conditions. At the end of the experiment the amount of tritium retained in the solid was at a concentration of less than 0.1 wppM. More than 99.9% of tritium generated during the experiment was successfully recovered. The results of the experiment showed that the tritium inventories at the beginning and at the end of the experiment follow a relationship which appears to be characteristic of intragranular diffusion

  7. TRIO experiment

    Energy Technology Data Exchange (ETDEWEB)

    Clemmer, R.G.; Finn, P.A.; Malecha, R.F.; Misra, B.; Billone, M.C.; Bowers, D.L.; Fischer, A.K.; Greenwood, L.R.; Mattas, R.F.; Tam, S.W.

    1984-09-01

    The TRIO experiment is a test of in-situ tritium recovery and heat transfer performance of a miniaturized solid breeder blanket assembly. The assembly (capsule) was monitored for temperature and neutron flux profiles during irradiation and a sweep gas flowed through the capsule to an anaytical train wherein the amounts of tritium in its various chemical forms were determined. The capsule was designed to operate at different temperatures and sweep gas conditions. At the end of the experiment the amount of tritium retained in the solid was at a concentration of less than 0.1 wppM. More than 99.9% of tritium generated during the experiment was successfully recovered. The results of the experiment showed that the tritium inventories at the beginning and at the end of the experiment follow a relationship which appears to be characteristic of intragranular diffusion.

  8. Simulated experiments

    International Nuclear Information System (INIS)

    A cybernetic model has been developed to elucidate some of the main principles of the growth regulation system in the epidermis of the hairless mouse. A number of actual and theoretical biological experiments have been simulated on the model. These included simulating the cell kinetics as measured by pulse labelling with tritiated thymidine and by continuous labelling with tritiated thymidine. Other simulated experiments included steady state, wear and tear, painting with a carcinogen, heredity and heredity and tumour. Numerous diagrams illustrate the results of these simulated experiments. (JIW)

  9. Antimatter Experiments

    CERN Multimedia

    2004-01-01

    Antimatter should behave in identical fashion to matter if a form of spacetime symmetry called CPT invariance holds. Two experiments at CERN near Geneva are testing this hypothesis using antihydrogen atoms

  10. Kafkaesque experiences

    OpenAIRE

    Sousa, Marta Da Costa Oom

    2013-01-01

    Trying to enhance the understanding of Kafkaesque experiences that greatly affect organizations and people and aiming to fill the gap in the literature on this topic, this study was developed. A qualitative research allowed a true clarification of how people experience and deal with Kafkaesque bureaucracy. Through the analysis of the performed interviews three responses were recognized: inactiveness, helplessness and meaninglessness, which reflect the attitude’s components. Understanding...

  11. Brightness experiments.

    Science.gov (United States)

    Macdonald, Patrick J; Johnson, Jolene; Chen, Yan; Mueller, Joachim D

    2014-01-01

    This chapter presents an overview of quantitative fluorescence brightness experiments with special emphasis on single-color measurements of protein homo-interactions inside living cells. We discuss practical considerations in the choice of the fluorescent labels and the calibration measurements necessary for quantitative interpretation of brightness experiments. Methods to identify and avoid common pitfalls, such as bleaching and saturation, are addressed. We examine the interpretation of brightness data with moment analysis. In particular, we focus on how to avoid or correct for undersampling, as well as how to characterize and adjust for photon detector effects. We conclude by describing brightness titration experiments which determine the binding curve and stoichiometry of a protein from apparent brightness data. PMID:24108651

  12. Channeling experiment

    International Nuclear Information System (INIS)

    Channeling of water flow and tracer transport in real fractures in a granite body at Stripa have been investigated experimentally. The experimental site was located 360 m below the ground level. Two kinds of experiments were performed. In the single hole experiments, 20 cm diameter holes were drilled about 2.5 m into the rock in the plane of the fracture. Specially designed packers were used to inject water into the fracture in 5 cm intervals all along the fracture trace in the hole. The variation of the injection flowrates along the fracture were used to determine the transmissivity variations in the fracture plane. Detailed photographs were taken from inside the hole and the visual fracture aperture was compared with the injection flowrates in the same locations. Geostatistical methods were used to evaluate the results. Five holes were measured in great detail. In addition 7 holes were drilled and scanned by simpler packer systems. A double hole experiment was performed where two parallel holes were drilled in the same fracture plane at nearly 2 m distance. Pressure pulse tests were made between the holes in both directions. Tracers were injected in 5 locations in one hole and monitored for in many locations in the other hole. The single hole experiment and the double hole experiment show that most of the fracture planes are tight but that there are open sections which form connected channels over distances of at least 2 meters. It was also found in the double hole experiment that the investigated fracture was intersected by at least one fracture between the two holes which diverted a large amount of the injected tracers to several distant locations at the tunnel wall. (authours)

  13. Spectral Experiments+

    CERN Document Server

    Rivin, Igor

    2014-01-01

    We describe extensive computational experiments on spectral properties of random objects - random cubic graphs, random planar triangulations, and Voronoi and Delaunay diagrams of random (uniformly distributed) point sets on the sphere). We look at bulk eigenvalue distribution, eigenvalue spacings, and locality properties of eigenvectors. In all cases we discover completely new (at least to this author) phenomena.

  14. Biodiesel Experiment

    Science.gov (United States)

    Lawrence, Richard

    The Advanced Technology Environmental and Energy Center (ATEEC) provides this classroom activity on biodiesel. The experiment involves using some chemicals which may be considered extremely dangerous; educators should be sure to practice laboratory safety when using this lesson. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

  15. Soil experiment

    Science.gov (United States)

    Hutcheson, Linton; Butler, Todd; Smith, Mike; Cline, Charles; Scruggs, Steve; Zakhia, Nadim

    1987-01-01

    An experimental procedure was devised to investigate the effects of the lunar environment on the physical properties of simulated lunar soil. The test equipment and materials used consisted of a vacuum chamber, direct shear tester, static penetrometer, and fine grained basalt as the simulant. The vacuum chamber provides a medium for applying the environmental conditions to the soil experiment with the exception of gravity. The shear strength parameters are determined by the direct shear test. Strength parameters and the resistance of soil penetration by static loading will be investigated by the use of a static cone penetrometer. In order to conduct a soil experiment without going to the moon, a suitable lunar simulant must be selected. This simulant must resemble lunar soil in both composition and particle size. The soil that most resembles actual lunar soil is basalt. The soil parameters, as determined by the testing apparatus, will be used as design criteria for lunar soil engagement equipment.

  16. Experiment 7

    CERN Multimedia

    1968-01-01

    Over-all view of the arrangement of counters around the polarized target in the kaon-polarized proton experiment. The beam enters through the quadrupole magnet on the left, and strikes the target placed in a 18.5 kG field (one pole of the magnet is just visible above the ring of counters). The scatterred kaon and recoil proton are detected by the counters on the ring and recorded onto magnetic tape.

  17. Crucible Experiments

    Science.gov (United States)

    Jiang, Min; Wang, Xin-Hua; Pak, Jong-Jin

    2014-08-01

    ZrO2 crucible experiments were carried out in the laboratory to study the formation of low-melting-point inclusions in steel, during which aluminum deoxidization and a high-basicity calcium aluminate refining slag (CaO/SiO2: 6 to 8, Al2O3 40 to 45 pct) were used. Four experiments were done with different slag/steel reaction times (30, 60, 90, and 180 minutes). It was found that inclusions were mainly composed of CaO-Al2O3-ZrO2 with very limited SiO2, in spherical morphology and with sizes mainly less than 5 ?m. They can be classified into two types according to the ZrO2 content. The first type contained much lower ZrO2, whereas a much higher level of ZrO2 was detected in the other type. An evolution of inclusions with the reaction time was observed and studied. The obtained results indicated that chemical compositions of inclusions were widely scattered in the CaO-Al2O3-ZrO2 phase diagram after 30 min reaction. However, the composition of inclusions became much more uniform and concentrated in low-melting-temperature regions at 60, 90, and 180 minutes, which would be favorable to prevent nozzle clogging and fatigue problems. Compared with the authors' previous results obtained in MgO crucible experiments, it was found that low-melting-temperature inclusions can be targeted in shorter time in ZrO2 crucible experiments, without any degradation of cleanliness.

  18. Target experiments

    International Nuclear Information System (INIS)

    Through a series of target experiments and comparison with theoretical calculations, we are gaining new understanding of the conversion of 10-?m light to hot electrons and the subsequent transport of energy within targets. This understanding is fundamental to our ability to determine whether, and at what energy, CO2 lasers can be used to compress fusion targets to ignition conditions. High hot-electron temperatures and significant decoupling of energy into suprathermal ion expansion can pose problems for target design, but vacuum insulation shows promise for controlling target preheat

  19. Thomson Experiment

    CERN Multimedia

    This experiment, conducted by JJ Thomson in 1897, established the existence of the electron. Thomson won the Nobel physics prize for this work in 1906. A beam of electrons crosses the chamber emitting blue light. Adding an electric field (E) or a magnetic field (B) exerts a force on the moving electrons.Use switch E to turn on the electric field in the chamber. Then, by turning knob B, you can increase the current in the coils, generating a magnetic field. By balancing the electric and magnetic fields, Thomson was able to keep the electron beam level and deduce the ratio of the electron's charge to its mass.

  20. GRAAL experiment

    International Nuclear Information System (INIS)

    GRAAL experiment installed a high energy up to 1.5 GeV tagged and polarized photon beam at the ESRF (European Synchrotron Radiation Facility) in Grenoble. The beam is produced by backscattering a laser beam of the electron beam of the ESRF. This beam is used to study the photoproduction of mesons on liquid hydrogen target. From October 1996 until May 1997 data taking was performed to produce ? mesons on hydrogen from threshold to 1100 MeV. The extraction of beam asymmetry ? in ? photoproduction is in preparation for publication. The analysis of ?0 and 2?0 photoproduction is in progress and the cross sections of the three channels are under analysis. In September 1997, the tests of kaon photoproduction and detection is being started with photon beam of energy up to 1500 MeV. (authors)

  1. Rutherford Experiment

    CERN Multimedia

    This experiment, carried out by Ernest Rutherford in 1910, revolutionised understanding of the structure of matter, showing that almost all the mass of an atom is concentrated in a very small, positively charged nucleus. Alpha particles emitted at bombard a thin gold foil. A detector records the number of alpha particles crossing the foil per second. The number is displayed on the counter and updated every minute. Alpha particles are helium nuclei, they consist of 2 protons and 2 neutrons. Rotate the central knob to change the angle between the foil and the detector. The number of alpha particles detected depends on the angle. Most of the alpha particles travel straight through the foil because the gold atoms are mainly empty space. However some hit the atomic nucleus and are deflected.

  2. Clustering experiments

    CERN Document Server

    Wang, Zhengwei; Tan, Ken; Di, Zengru; Roehner, Bertrand M

    2011-01-01

    It is well known that bees cluster together in cold weather, in the process of swarming (when the ``old'' queen leaves with part of the colony) or absconding (when the queen leaves with all the colony) and in defense against intruders such as wasps or hornets. In this paper we describe a fairly different clustering process which occurs at any temperature and independently of any special stimulus or circumstance. As a matter of fact, this process is about four times faster at 28 degree Celsius than at 15 degrees. Because of its simplicity and low level of ``noise'' we think that this phenomenon can provide a means for exploring the strength of inter-individual attraction between bees or other living organisms. For instance, and at first sight fairly surprisingly, our observations showed that this attraction does also exist between bees belonging to different colonies. As this study is aimed at providing a comparative perspective, we also describe a similar clustering experiment for red fire ants.

  3. Experiment POSEIDON

    International Nuclear Information System (INIS)

    An experimental program called Pool Scrubbing Effect On Iodine Decontamination (POSEIDON), was initiated at PSI in 1987 to provide a data base for gaseous iodine scrubbing in water pools. Elemental iodine and nitrogen as the carrier gas are bubbled through an orifice in a water pool. This paper reports that the test facility is composed of a 5 meter height, 1 m in diameter tank, iodine vapor preparation facility, inlet sampling system, bubble generator, outlet sampling system. The facility is designed to perform experiments at a water temperature from 20 to 60 degrees C, 1 to 4 m submergence. Various orifices, 0.5 to 12 mm in diameter, are used to generate very small to large spherical cap bubbles. Iodine concentrations at the inlet and outlet of the test section are determined by taking grab samples of the nitrogen gas and iodine vapor mixture in pre-evacuated gas bottles. The samples are then analyzed using the Total-X-Ray Fluorescence Technique (TXRF) which is developed at PSI. Lowest detection limit of this technique is 0.08 ?g iodine in a litre of gas sample. The results of the tests indicated that the scrubbing process mainly is governed by the submergence level and the bubble hydrodynamics. This paper presents a description of the experimental facility and the test results

  4. Particle physics experiments 1983

    International Nuclear Information System (INIS)

    The report describes work carried out in 1983 on experiments approved by the Particle Physics Experiments Selection Panel. The contents consist of unedited contributions from each experiment. (author)

  5. Sleep Monitoring Experiment - Skylab Experiment M133

    Science.gov (United States)

    1970-01-01

    This 1970 photograph shows equipment for the Skylab's Sleep Monitoring Experiment (M133), a medical evaluation designed to objectively determine the amount and quality of crewmembers' inflight sleep. The experiment monitored and recorded electroencephalographic (EEG) and electrooculographic (EOG) activity during astronauts' sleep periods. One of the astronauts was selected for this experiment and wore a fitted cap during his sleep periods. The Marshall Space Flight Center had program management responsibility for the development of Skylab hardware and experiments.

  6. Particle physics experiments 1989

    International Nuclear Information System (INIS)

    This report describes work carried out in 1989 on experiments approved by the Particle Physics Experiments Selection Panel of Rutherford Appleton Laboratory. The contents consist of unedited contributions from each experiment. (author)

  7. Particle physics experiments

    International Nuclear Information System (INIS)

    The report of the Rutherford Appleton Laboratory describes the work carried out in 1985 on experiments approved by the Particle Physics Experiments Selection Panel. The contents consist of unedited contributions from each experiment. (author)

  8. Experiments in Electrochemistry

    Science.gov (United States)

    Carboni, Giorgio.

    1998-01-01

    Provided by the Fun Science Gallery, Experiments in Electrochemistry offers both teachers and students documentation for seven simple experiments to investigate conductors, batteries, potentials, and galvanic deposition. Each experiment is accompanied by a list of materials, explanatory text, and at least one figure that facilitates a scientific understanding of the experiment.

  9. Particle physics experiments 1982

    International Nuclear Information System (INIS)

    Work carried out in 1982 on 52 experiments approved by the Particle Physics Experiments Selection Panel is described. Each experiment is listed under title, collaboration, technique, accelerator, year of running, status and spokesman. Unedited contributions are given from each experiment. (U.K.)

  10. Framework of product experience:

    OpenAIRE

    Desmet, P.; Hekkert, P.

    2007-01-01

    In this paper, we introduce a general framework for product experience that applies to all affective responses that can be experienced in human-product interaction. Three distinct components or levels of product experiences are discussed: aesthetic experience, experience of meaning, and emotional experience. All three components are distinguished in having their own lawful underlying process. The aesthetic level involves a product’s capacity to delight one or more of our sensory modalities....

  11. Radiometer experiment for the aeroassist flight experiment

    Science.gov (United States)

    Davy, W. C.; Park, C.; Arnold, J. O.; Balakrishnan, A.

    1985-06-01

    A forthcoming NASA flight experiment is described that provides an opportunity to obtain a large base of radiometric data for high-altitude, high-velocity thermochemically nonequilibrated-flow conditions. As a preliminary to the design of a radiometer for this experiment, an approximate method for predicting both equilibrium and nonequilibrium radiative surface fluxes is described. Spectral results for one trajectory state, a velocity of 10 km/sec at an altitude of 85 km, are presented. These results are then used to develop some of the instrument parameters that will be needed for designing of the three genre of radiometers that are proposed for this experiment.

  12. Real Life Experiences with Experience Design

    DEFF Research Database (Denmark)

    Dalsgård, Peter; Halskov, Kim

    2006-01-01

    Experience Design is an emergent field of study, and various approaches to the field abound. In this paper, we take a pragmatic approach to identifying key aspects of an experience design process, by reporting on a project involving the design of experience-oriented applications of interactive technologies for knowledge dissemination and marketing, in cooperation with public institutions and businesses. We argue that collaborative formulation of core design intentions and values is a valuable instrument in guiding experience design processes, and present three cases from this project, two of which resulted in interactive installations. The case installations range from walk-up-and-use consoles, to immersive, responsive, environments based on bodily interaction. We compare the installations, and discuss the interrelations between the resulting interfaces and the intentions for creating the installations, the core values established to guide the design process and the intended use contexts. We argue that the installations present a broad spectrum of experience design installations that can assist designers in understanding the relations between core values, intentions, use context and interface in the design of experience-oriented interactive installations.

  13. First Impressions Experiment

    Science.gov (United States)

    This is the entry page for participation in the first impressions experiment. This study allows participants to experience the formation of initial impressions and the roles minority/majority status and positive/negative attributes play in that formation process.

  14. Mental Rotation Experiment

    Science.gov (United States)

    This is the entry page for the Mental Rotation Experiment. This experiment presents 16 different pairs of three dimensional objects. Users judge whether the objects are the same or different. Responses are timed.

  15. Field experiments with firms

    OpenAIRE

    Bandiera, Oriana; Barankay, Iwan; Rasul, Imran

    2011-01-01

    We discuss how the use of field experiments sheds light on long standing research questions relating to firm behavior. We present insights from two classes of experiments: within and across firms, and draw common lessons from both sets. Field experiments within firms generally aim to shed light on the nature of agency problems. Along these lines, we discuss how field experiments have provided new insights on shirking behavior, and the provision of monetary and non-monetary incentives. Field e...

  16. Designing luxury experience

    OpenAIRE

    Grigorian, Vadim; Petersen, Francine Espinoza

    2014-01-01

    In luxury brand management, experiences are essential. However, most of what we know about designing customer experiences originates from work developed with and/or for mass brands. Luxury brands are conceptually different and require a specific approach to brand management. Using a grounded theory approach, we present a framework consisting of seven principles to design luxury experience. Our research suggests that to create a true luxury experience brands should go beyond traditional framew...

  17. Modified Afshar Experiment: Calculations

    OpenAIRE

    Flores, Eduardo V.

    2008-01-01

    The Afshar experiment is a relatively simple two-slit experiment with results that appear to show a discrepancy with the predictions of Bohr's Principle of Complementarity. We report on the results of a calculation using a simpler but equivalent set-up called the modified Afshar experiment. Numerical results are in agreement with the experimental results performed on the Afshar experiment set-up. Calculations show that the level of which-way information and visibility in the...

  18. Organic chemistry experiment

    International Nuclear Information System (INIS)

    This book deals with organic chemistry experiments, it is divided five chapters, which have introduction, the way to write the experiment report and safety in the laboratory, basic experiment technic like recrystallization and extraction, a lot of organic chemistry experiments such as fischer esterification, ester hydrolysis, electrophilic aromatic substitution, aldol reaction, benzoin condensation, wittig reaction grignard reaction, epoxidation reaction and selective reduction. The last chapter introduces chemistry site on the internet and way to find out reference on chemistry.

  19. Viscosity Of Liquids - Experiment

    Science.gov (United States)

    Classroom experiment to illustrate the viscosity of different liquids by measuring how quickly pebbles sink through them. The site describes all of the required material for the experiment and also gives a detailed chart for recording the results of the experiment. Altogether, the site is a great activity for the classroom.

  20. The Concerned Observer Experiment.

    Science.gov (United States)

    Rabiger, Michael

    1991-01-01

    Describes a classroom experiment--the "concerned observer" experiment--for production students that dramatizes basic film language by relating it to several levels of human observation. Details the experiment's three levels, and concludes that film language mimics wide-ranging states of human emotion and ideological persuasion. (PRA)

  1. Particle physics experiments 1988

    International Nuclear Information System (INIS)

    This report describes work carried out in 1988 on experiments approved by the Particle Physics Experiments Selection Panel. The contents consist of unedited contributions from each experiment. More than forty projects at different accelerators (SPS, ISIS, PETRA, LAMPF, LEP, HERA, BNL, ILL, LEAR) are listed. Different organisations collaborate on different projects. A brief progress report is given. References to published articles are given. (author)

  2. Experiments in physical chemistry

    CERN Document Server

    Wilson, J M; Denaro, A R

    1968-01-01

    Experiments in Physical Chemistry, Second Edition provides a compilation of experiments concerning physical chemistry. This book illustrates the link between the theory and practice of physical chemistry. Organized into three parts, this edition begins with an overview of those experiments that generally have a simple theoretical background. Part II contains experiments that are associated with more advanced theory or more developed techniques, or which require a greater degree of experimental skill. Part III consists of experiments that are in the nature of investigations wherein these invest

  3. Experiment, right or wrong

    CERN Document Server

    Franklin, Allan

    2008-01-01

    In Experiment, Right or Wrong, Allan Franklin continues his investigation of the history and philosophy of experiment presented in his previous book, The Neglect of Experiment. In this new study, Franklin considers the fallibility and corrigibility of experimental results and presents detailed histories of two such episodes: 1) the experiment and the development of the theory of weak interactions from Fermi's theory in 1934 to the V-A theory of 1957 and 2) atomic parity violation experiments and the Weinberg-Salam unified theory of electroweak interactions of the 1970s and 1980s. In these episodes Franklin demonstrates not only that experimental results can be wrong, but also that theoretical calculations and the comparison between experiment and theory can also be incorrect. In the second episode, Franklin contrasts his view of an "evidence model" of science in which questions of theory choice, confirmation, and refutation are decided on the basis of reliable experimental evidence, with that proposed by the ...

  4. Selected Parity Violation Experiments

    CERN Document Server

    Ramsay, W D

    2004-01-01

    I start by reviewing existing $\\vec{p}p$ measurements with particular emphasis on the recent 221 MeV $\\vec{p}p$ measurement at TRIUMF which permitted the weak meson-nucleon coupling constants $h^{pp}_\\rho$ and $h^{pp}_\\omega$ to be determined separately for the first time. I then review $\\vec{n}p$ experiments, with specific details of the $\\vec{n}p \\to d\\gamma$ experiment now under preparation at Los Alamos National Laboratory. This experiment will provide a clean measurement of the weak pion nucleon coupling, $f_\\pi$. Finally, I discuss $\\vec{e}p$ parity violation experiments, particularly the Gzero experiment under way at Jefferson Lab in Virginia. This experiment will measure the weak form factors $G_E^z$ and $G_M^z$, allowing the distribution of strange quarks in the quark sea to be determined.

  5. Python Experiment Suite Implementation

    Directory of Open Access Journals (Sweden)

    2010-05-01

    Full Text Available

    This manuscript describes the implementation of a generic experiment management tool called Python Experiment Suite, an open source software framework written in Python, that supports scientists, engineers and others to conduct automated software experiments on a larger scale with features like parameter evaluations in grid search manner, result logging and support for multiple cores, amongst others.

  6. Gyroscope relativity experiment

    Science.gov (United States)

    Decher, R.

    1971-01-01

    A gyroscope test of general relativity theory is proposed. The basic ideas and hardware concepts conceived by the investigators to implement the experiment are discussed. The goal is to measure the extremely small relativistic precession of gyroscopes in an earth-orbiting satellite. The experiment hardware (cryogenic gyroscopes, a telescope and superconducting circuits) is enclosed in a liquid helium dewar. The experiment will operate in orbit for about one year.

  7. Experiments in Electroanalytical Chemistry

    Science.gov (United States)

    This website offers educators a set of eight classical electroanalytical experiments suitable for use in a quantitative analysis, instrumental analysis, or electrochemistry course. The materials should be useful for advanced undergraduates and beginning graduate students. Experiments include coulometric, conductometric, and potentiometric titrations, stripping analysis, flow injection analysis, and polarography. It is important to note that several of the experiments use mercury or mercury coated electrodes which present safety concerns.

  8. Experiences of the Aesthetic

    OpenAIRE

    Prag, Anders; Madsen, Addie N.; Vilslev, Sara I. H.; Celis, Claudio; Dimitrov, Gorjan

    2003-01-01

    This project focuses on the aesthetic experience. The main question is whether the aesthetic experience can be qualified, which we have tried to do using philosophy. We use theories of Hans-Georg Gadamer in relation to hermeneutics and play, and theories by Theodor Adorno about natural beauty and art beauty. Throughout the project we relate these theories to our own experiences, both personal reflections and in relation to Peter Greenaway's film: "The Pillow Book" which we analyse. F...

  9. Analytical chemistry experiment

    International Nuclear Information System (INIS)

    This book deals with analytical chemistry experiment with eight chapters. It explains general matters that require attention on experiment, handling of medicine with keep and class, the method for handling and glass devices, general control during experiment on heating, cooling, filtering, distillation and extraction and evaporation and dry, glass craft on purpose of the craft, how to cut glass tube and how to bend glass tube, volumetric analysis on neutralization titration and precipitation titration, gravimetric analysis on solubility product, filter and washing and microorganism experiment with necessary tool, sterilization disinfection incubation and appendixes.

  10. Exploring sensory neuroscience through experience and experiment.

    Science.gov (United States)

    Wyttenbach, Robert A

    2012-01-01

    Many phenomena that we take for granted are illusions - color and motion on a TV or computer monitor, for example, or the impression of space in a stereo music recording. Even the stable image that we perceive when looking directly at the real world is illusory. One of the important lessons from sensory neuroscience is that our perception of the world is constructed rather than received. Sensory illusions effectively capture student interest, but how do you then move on to substantive discussion of neuroscience? This article illustrates several illusions, attempts to connect them to neuroscience, and shows how students can explore and experiment with them. Even when (as is often the case) there is no agreed-upon mechanistic explanation for an illusion, students can form hypotheses and test them by manipulating stimuli and measuring their effects. In effect, students can experiment with illusions using themselves as subjects. PMID:23493966

  11. A laboratory experiment setup for reflectivity experiments

    International Nuclear Information System (INIS)

    To utilize synchrotron radiation from Indus-1, a 450 MeV storage ring, several beamlines are planned and these beamlines are in different stages of completion. Prior to utilisation of synchrotron radiation from Indus-1, a program for characterisation of multilayers using laboratory sources was initiated to address the problems associated with grazing incidence mirrors used in VUV and soft x-ray beamline optics. As a part of this activity, reflectivity experiments on multilayer mirrors at near normal incidence angle were planned. Spectra of inert gases such as helium, neon and argon, using copper and aluminum electrodes, were recorded to evaluate usefulness of the spectral emissions from the laboratory gas discharge source for reflectivity experiments in 500-2000 A region. The spectra were recorded on an indigenously designed and fabricated UHV compatible one meter Seya-Namioka monochromator. A Penning ionisation discharge source served as a light source. A sodium salicylate coated photomultiplier was used as a detector. The monochromator and detector is a part of photo physics beamline at INDUS-1. The analysis of the spectra revealed the presence of quite a few transitions belonging to HeI, ArII and AlII. Some of these transitions were intense enough for carrying out reflectivity experiments. Details of the experimental setup and the results obtained are discussed in this report. (author)

  12. Earthquake Effects and Experiences

    Science.gov (United States)

    This portion of the United States Geological Survey's (USGS) frequently-asked-questions feature on earthquakes addresses what individuals might actually experience during an earthquake. Topics include earthquake motion (rolling or shaking), earthquake effects (ground shaking, surface faulting, ground failure, etc.), earthquake magnitude, what an earthquake feels like, and others. There are also links to additional resources on earthquake effects and experiences.

  13. Social Balance Experiment

    Science.gov (United States)

    This is the entry page for participation in the Social Balance Experiment. In this experiment, participants are asked to imagine that they are in a situation in which they have one of five feelings (love, like, neutral, dislike or hate) toward another person named Bill.

  14. Beam dump neutrino experiments

    International Nuclear Information System (INIS)

    The results are presented of beam dump neutrino experiments carried out in CERN and FNAL. The values are presented of the ratios ?-bar?/?? and (?e+?-bare)/(??+?-bar?). The beam dump neutrino experiments have established a new source of neutrinos. They are also a tool for searching new classes of particles kindly offered by the theorists. (Z.J.)

  15. Ball Collision Experiments

    Science.gov (United States)

    Cross, R.

    2015-01-01

    Experiments are described on collisions between two billiard balls and between a bat and a ball. The experiments are designed to extend a student's understanding of collision events and could be used either as a classroom demonstration or for a student project.

  16. Realisation, experience, and purification

    DEFF Research Database (Denmark)

    Sobisch, Jan-Ulrich

    Often Buddhist mantra practises are portrayed as making and maintaining meditation experiences. Jigten Sumgön explains in his dGongs gcig (5.19) that such a 'making and maintaining' is only a mental fabrication and needs to be purified. Realisation does not arise from experience, but from purification, he says.

  17. Instrumental Analysis Experiments

    Science.gov (United States)

    Walters, John P.

    This site features laboratory experiments for undergraduate instrumental analysis. Topics include data acquisition, control of instrumentation (gas chromatography, polarography, voltammetry, atomic absorption, robots), infrared spectroscopy, liquid chromatography, and nuclear magnetic resonance. Extensive use of LabView, Excel, and computers. Experiments are available for download in PDF format.

  18. Numerical Memory Experiment

    Science.gov (United States)

    This is the entry page for the Numerical Memory Experiment. This Numerical Memory experiment employs a similar format to Digit Span tasks found in assessment instruments, comparing the individual's short-term memory for digits presented in an auditory vs. visual format.

  19. Varieties of Musical Experience

    Science.gov (United States)

    Bharucha, J. Jamshed; Curtis, Meagan; Paroo, Kaivon

    2006-01-01

    In this paper, we argue that music cognition involves the use of acoustic and auditory codes to evoke a variety of conscious experiences. The variety of domains that are encompassed by music is so diverse that it is unclear whether a single domain of structure or experience is defining. Music is best understood as a form of communication in which…

  20. Neutrino oscillation experiments

    Energy Technology Data Exchange (ETDEWEB)

    Camilleri, L. [European Organization for Nuclear Research, Geneva (Switzerland)

    1996-11-01

    Neutrino oscillation experiments ({nu}{sub {mu}}{yields}{nu}{sub e} and {nu}{sub {mu}}{yields}{nu}{sub {tau}}) currently being performed at accelerators are reviewed. Future plans for short and long base-line experiments are summarized. (author) 10 figs., 2 tabs., 29 refs.

  1. The Jumping Ring Experiment

    Science.gov (United States)

    Baylie, M.; Ford, P. J.; Mathlin, G. P.; Palmer, C.

    2009-01-01

    The jumping ring experiment has become central to liquid nitrogen shows given as part of the outreach and open day activities carried out within the University of Bath. The basic principles of the experiment are described as well as the effect of changing the geometry of the rings and their metallurgical state. In general, aluminium rings are…

  2. Fluorescence Experiments with Quinine

    Science.gov (United States)

    O'Reilly, James E.

    1975-01-01

    Describes a series of experiments which illustrate the analytical capabilities of fluorescence, and outlines two straightforward analyses involving real analyses. These experiments are suitable for an undergraduate instrumental analysis course and require approximately six to seven hours of laboratory time. (MLH)

  3. Peak Experience Project

    Science.gov (United States)

    Scott, Daniel G.; Evans, Jessica

    2010-01-01

    This paper emerges from the continued analysis of data collected in a series of international studies concerning Childhood Peak Experiences (CPEs) based on developments in understanding peak experiences in Maslow's hierarchy of needs initiated by Dr Edward Hoffman. Bridging from the series of studies, Canadian researchers explore collected…

  4. Franklin: User Experiences

    Energy Technology Data Exchange (ETDEWEB)

    National Energy Research Supercomputing Center; He, Yun (Helen); Kramer, William T.C.; Carter, Jonathan; Cardo, Nicholas

    2008-05-07

    The newest workhorse of the National Energy Research Scientific Computing Center is a Cray XT4 with 9,736 dual core nodes. This paper summarizes Franklin user experiences from friendly early user period to production period. Selected successful user stories along with top issues affecting user experiences are presented.

  5. Molybdenum solar neutrino experiment

    International Nuclear Information System (INIS)

    The goal of the molybdenum solar neutrino experiment is to deduce the 8B solar neutrino flux, averaged over the past several million years, from the concentration of 98Tc in a deeply buried molybdenum deposit. The experiment is important to an understanding of stellar processes because it will shed light on the reason for the discrepancy between theory and observation of the chlorine solar neutrino experiment. Possible reasons for the discrepancy may lie in the properties of neutrinos (neutrino oscillations or massive neutrinos) or in deficiencies of the standard solar model. The chlorine experiment only measures the 8B neutrino flux in current times and does not address possible temporal variations in the interior of the sun, which are also not considered in the standard model. In the molybdenum experiment, we plan to measure 98Tc (4.2 Myr), also produced by 8B neutrinos, and possibly 97Tc (2.6 Myr), produced by lower energy neutrinos

  6. Cryogenics for LHC experiments

    CERN Multimedia

    2001-01-01

    Cryogenic systems will be used by LHC experiments to maximize their performance. Institutes around the world are collaborating with CERN in the construction of these very low temperature systems. The cryogenic test facility in hall 180 for ATLAS magnets. High Energy Physics experiments have frequently adopted cryogenic versions of their apparatus to achieve optimal performance, and those for the LHC will be no exception. The two largest experiments for CERN's new flagship accelerator, ATLAS and CMS, will both use large superconducting magnets operated at 4.5 Kelvin - almost 270 degrees below the freezing point of water. ATLAS also includes calorimeters filled with liquid argon at 87 Kelvin. For the magnets, the choice of a cryogenic version was dictated by a combination economy and transparency to emerging particles. For the calorimeters, liquid argon was selected as the fluid best suited to the experiment's physics requirements. High Energy Physics experiments are the result of worldwide collaborations and...

  7. Hadron production experiments

    CERN Document Server

    Popov, Boris A

    2012-01-01

    The HARP and NA61/SHINE hadroproduction experiments as well as their implications for neutrino physics are discussed. HARP measurements have already been used for predictions of neutrino beams in K2K and Mini-BooNE/SciBooNE experiments and are also being used to improve the atmospheric neutrino flux predictions and to help in the optimization of neutrino factory and super-beam designs. First measurements released recently by the NA61/SHINE experiment are of significant importance for a precise prediction of the J-PARC neutrino beam used for the T2K experiment. Both HARP and NA61/SHINE experiments provide also a large amount of input for validation and tuning of hadron production models in Monte-Carlo generators.

  8. Radiochemical solar neutrino experiments

    International Nuclear Information System (INIS)

    This review covers the three presently running radiochemical solar neutrino experiments, namely the Chlorine, SAGE, and GALLEX experiments. The focus of the review is on a discussion of statistical consistency checks of the available data. The chlorine radiochemical experiment is conceptually simple and shows no strong indication of any statistical anomalies. It still forms the basis of the solar neutrino problem. Each of the two gallium experiments show internal statistical consistency. SAGE's recent preliminary results are consistent with the published GALLEX results. If this convergence is confirmed by a more definitive analysis, this would suggest that the combined result of the two gallium experiments, SAGE and GALLEX, be used for comparisons with theoretical expectations. 5 refs., 15 figs

  9. DT experiment on JET

    International Nuclear Information System (INIS)

    In November, 1991, at the JET tokamak in Abingdon, the U.K., DT plasma combustion experiment was carried out for the first time in history. The output power by nuclear fusion of 1.7 MW at maximum and the total power output of 2 MJ were attained, and it was proved that the controlled nuclear fusion accompanied by considerable power output can be carried out on the ground as a real thing. One milestone of the dream and target of nuclear fusion reactors was attained. In this paper, the results of the experiment are reported, and their meaning for the research of hereafter is considered. In the experiment this time, 0.24 g of tritium in total was used, including conditioning. The last two shots became the power output experiment of MW class nuclear fusion reaction, in which about 13% of tritium fuel ratio was estimated. The preliminary tritium experiment was divided into six phases, and was carried out for three weeks, aiming at collecting the basic data for the full scale DT experiment. The examination of the research program, the preliminary tritium experiment and the success of the PTE and the new development are described. (K.I.)

  10. Simulation - modeling - experiment; Simulation - modelisation - experience

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    After two workshops held in 2001 on the same topics, and in order to make a status of the advances in the domain of simulation and measurements, the main goals proposed for this workshop are: the presentation of the state-of-the-art of tools, methods and experiments in the domains of interest of the Gedepeon research group, the exchange of information about the possibilities of use of computer codes and facilities, about the understanding of physical and chemical phenomena, and about development and experiment needs. This document gathers 18 presentations (slides) among the 19 given at this workshop and dealing with: the deterministic and stochastic codes in reactor physics (Rimpault G.); MURE: an evolution code coupled with MCNP (Meplan O.); neutronic calculation of future reactors at EdF (Lecarpentier D.); advance status of the MCNP/TRIO-U neutronic/thermal-hydraulics coupling (Nuttin A.); the FLICA4/TRIPOLI4 thermal-hydraulics/neutronics coupling (Aniel S.); methods of disturbances and sensitivity analysis of nuclear data in reactor physics, application to VENUS-2 experimental reactor (Bidaud A.); modeling for the reliability improvement of an ADS accelerator (Biarotte J.L.); residual gas compensation of the space charge of intense beams (Ben Ismail A.); experimental determination and numerical modeling of phase equilibrium diagrams of interest in nuclear applications (Gachon J.C.); modeling of irradiation effects (Barbu A.); elastic limit and irradiation damage in Fe-Cr alloys: simulation and experiment (Pontikis V.); experimental measurements of spallation residues, comparison with Monte-Carlo simulation codes (Fallot M.); the spallation target-reactor coupling (Rimpault G.); tools and data (Grouiller J.P.); models in high energy transport codes: status and perspective (Leray S.); other ways of investigation for spallation (Audoin L.); neutrons and light particles production at intermediate energies (20-200 MeV) with iron, lead and uranium targets (Le Colley F.R.); nuclear data for transmutation (Noguere G.). (J.S.)

  11. Radiochemical solar neutrino experiments

    International Nuclear Information System (INIS)

    Radiochemical experiments have been crucial to solar neutrino research. Even today, they provide the only direct measurement of the rate of the proton-proton fusion reaction, p+p?d+e++?e, which generates most of the Sun's energy. We first give a little history of radiochemical solar neutrino experiments with emphasis on the gallium experiment SAGE - the only currently operating detector of this type. The combined result of all data from the Ga experiments is a capture rate of 67.6±3.7 SNU. For comparison to theory, we use the calculated flux at the Sun from a standard solar model, take into account neutrino propagation from the Sun to the Earth and the results of neutrino source experiments with Ga, and obtain 67.3-3.5+3.9 SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux of ?pp?=(3.41-0.77+0.76)×1010/(cm2-s), which agrees well with the prediction from a detailed solar model of ?pp?=(3.30-0.14+0.13)×1010/(cm2-s). Four tests of the Ga experiments have been carried out with very intense reactor-produced neutrino sources and the ratio of observed to calculated rates is 0.88±0.05. One explanation for this unexpectedly low result is that the cross section for neutrino capture by the two lowest-lying excited states in 71Ge has beees in 71Ge has been overestimated. We end with consideration of possible time variation in the Ga experiments and an enumeration of other possible radiochemical experiments that might have been.

  12. The Neutron EDM Experiment

    CERN Document Server

    Harris, P G

    2007-01-01

    The neutron EDM experiment has played an important part over many decades in shaping and constraining numerous models of CP violation. This review article discusses some of the techniques used to calculate EDMs under various theoretical scenarios, and highlights some of the implications of EDM limits upon such models. A pedagogical introduction is given to the experimental techniques employed in the recently completed ILL experiment, including a brief discussion of the dominant systematic uncertainties. A new and much more sensitive version of the experiment, which is currently under development, is also outlined.

  13. Results from neutrino experiments

    International Nuclear Information System (INIS)

    Recent (first or/and the best) results from the neutrino experiments are reviewed and their implications for the theory are discussed. The sense of the experiments is the searching for neutrino masses, mixing and interactions beyond the standard model. Present laboratory experiments give upper bounds on the masses and the mixing which are at the level of predictions of the ''electroweak see-saw''. Positive indications of nonzero lepton mixing follow from studies of the solar and atmospheric neutrinos. (author). 95 refs, 11 figs

  14. The Brain Experiment

    Science.gov (United States)

    Polenta, G.; Calvo, M.; Conversi, L.; de Bernardis, P.; Giordano, C.; Iacoangeli, A.; Maiello, M.; Marini-Bettolo, C.; Masi, S.; Nati, F.; Nati, L.; Peterzen, S.; Piacentini, F.; Sordini, R.; Veneziani, M.; Bartlett, J.; Bréelle, E.; Dufour, C.; Galli, S.; Ganga, K.; Ghribi, A.; Giraud-Heraud, Y.; Guglielmi, L.; Hamilton, J. C.; Kaplan, J.; Piat, M.; Gervasi, M.; Sironi, G.; Spinelli, S.; Tartari, A.; Zannoni, M.; Maffei, B.; Piccirillo, L.; Pisano, G.; Ade, P.; Orlando, A.; Savini, G.; Brossard, J.; Giard, M.; Landé, J.; Bergé, L.; Dumoulin, L.; Juillard, A.; Marnieros, S.; Pajot, F.; Rosset, C.

    2008-09-01

    The rotational component of the CMB polarization, the so-called B-modes, is one of the major topic for next generation CMB experiments. This signal traces the effect on the CMB due to primordial gravitational waves produced during the inflationary epoch, probing the physics of the very early universe at GUT energy scales. This is a challenge, being the expected amplitude of B-mode polarization ~ 0.1?K. In this paper we describe the BRAIN experiment, a bolometric interferometer which combines high sensitivity bolometric detectors with the excellent control of systematic effects proper of interferometers. Being a ground based experiment, we identified Dome Charlie in Antarctica as the best site for such measurements. In order to validate the goodness of the site, as well as some of the implemented technical solutions, we built a pathfinder experiment which has been successfully operated during last Antarctic summer, and we report about preliminary results obtained.

  15. The AMS experiment

    International Nuclear Information System (INIS)

    An overview about physics objectives of the AMS experiment, the sub-detectors of the Alpha Magnetic Spectrometer on the Shuttle flight in 1998 (AMS01) and some preliminary experimental results are presented

  16. Conceptualising the audiobook experience

    Directory of Open Access Journals (Sweden)

    Iben Have

    2013-03-01

    Full Text Available In this article we wish to introduce and discuss a theoretical framework for a possible conceptualisation of the differences between reading a printed book and listening to an audiobook. We tend to introduce similarities and differences between reading with the eyes and reading with the ears, implying that we should not discuss the audiobook experience as a remediation of the printed book experience only, but as an entirely different experience that could be conceptualised in continuation of mobile listening practises. As a methodological strategy we will emphasise the differences between the literary practices, reading with the eyes and reading with the ears. These different perspectives on reading are used to accentuate the distinct experiences, and future thorough analyses in continuation of this framework would appear much more complex and connected than in the present article.

  17. Notes on Experiments.

    Science.gov (United States)

    Physics Education, 1988

    1988-01-01

    Describes four physics experiments including "Investigation of Box Resonances Using a Micro"; "A Direct Reading Wattmeter, DC or AC"; "Exercises in the Application of Ohm's Law"; and "Hysteresis on Gas Discharges." Discusses procedures, instrumentation, and analysis in each example. (CW)

  18. Cadell's Mountain Building Experiments

    Science.gov (United States)

    These animations show reconstructions of Cadell's famous experiments in mountain building, performed at an open day of the British Geological Survey at Murchison House, Edinburgh. Various versions at different resolutions are available.

  19. The world's biggest experiment

    CERN Multimedia

    Gregson, Liz

    2008-01-01

    According to CERN, our understanding of the Universe is about the change. Meet the Imperial alumni and staff who are involved in CERN's Large Hadron Collider, the world's biggest experiment. (3 pages)

  20. Zero-Gravity Experiment

    International Science & Technology Center (ISTC)

    Research to Provide Creation of Recoverable Vehicle with Scientific and Technological Equipment Weight Increased to 400kg for Conducting Zero-Gravity Experiments by Submarine-Launches of the "Volna" Rocket

  1. Nova target experiments

    International Nuclear Information System (INIS)

    The Nova laser, at the Lawrence Livermore National Laboratory, provides unique opportunities for target experiments. It has unprecedented energy on target and significant flexibility. The paper presented by John Hunt described the capabilities and the status of Nova. This paper discusses plans for future experiments using Nova, and the present status of target experiments. We plan to perform high-quality physics experiments that exploit the unique capabilities of Nova. Because this is our goal, we are fielding an extensive array of well-characterized target diagnostics to measure the emissions from the target. The first section of this paper discusses the basic target diagnostics. We are also taking care to quantify the performance of the laser

  2. Germany's Solar Experiment

    Science.gov (United States)

    NOVA

    This NOVA video podcast is about Germany's solar experiment. Munich's solar panel farm lines the Autobahn and countryside in a massive effort to prove solar's feasibility as a practical renewable energy source.

  3. General relativity and experiment

    OpenAIRE

    Damour, T.

    1994-01-01

    The confrontation between Einstein's theory of gravitation and experiment is summarized. Although all current experimental data are compatible with general relativity, the importance of pursuing the quest for possible deviations from Einstein's theory is emphasized.

  4. Experiment R701

    CERN Multimedia

    1974-01-01

    Lower streamer chamber of experiment R701, showing its close fit around the central bicone vacuum chamber at intersection I-7. The upper streamer chamber has been removed but when in use is similarly fitted around the vacuum chamber.

  5. The MAJORANA Experiment

    International Nuclear Information System (INIS)

    The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale 76Ge neutrinoless double-beta decay (??(0?)-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and 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.

  6. TELMA Cross Experiment Guidelines

    OpenAIRE

    Bouhineau, Denis; Cazes, Claire; Chaachoua, Hamid; Cerulli, Michele; Gavrilis, Kostas; Georget, Jean-philippe; Haspe?kian, Mariam; Keisoglou, Stefanos; Latsi, Maria; Maffei, Laura; Maracci, Mirko; Morgan, Candia; Nicaud, Jean-franc?ois; Pedemonte, Bettina; Psycharis, Giorgos

    2007-01-01

    This document contains the guidelines developed by members of TELMA as a means for planning, conducting, and analysing a cross experiment aimed at contributing to the construction of a shared research perspective among TELMA teams . This is the product of the PhD students and young researchers that brought forward the whole activity. The actual experimental phase was proceeded by a reflective phase in which an agreement was achieved on what research questions to address during the experiment....

  7. Object Location Experiment

    Science.gov (United States)

    This is the entry page for the Object Location Experiment. The experiment begins with a description of the object location memory task that the participants will complete. Participants learn that they will study an array of objects for a designated period of time; the array of objects will then disappear; and then the array of objects will reappear, but some of the objects will have exchanged positions.

  8. The MAJORANA Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Aguayo Navarrete, Estanislao; Avignone, F. T.; Back, Henning O.; Barabash, Alexander S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Busch, Matthew; Chan, Yuen-Dat; Christofferson, Cabot-Ann; Collar, J. I.; Combs, Dustin C.; Cooper, R. J.; Detwiler, Jason A.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, Steven R.; Esterline, James H.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, Matthew P.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Hazama, R.; Henning, R.; Hime, Andrew; Hoppe, Eric W.; Horton, Mark; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, Mary; 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, D.; 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.; Sobolev, V.; Steele, David; Strain, J.; Thomas, K.; Timkin, V.; Tornow, W.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, John; Wolfe, B. A.; Yakushev, E.; Young, A.; Yu, Chang-Hong; Yumatov, Vladimir; Zhang, C.

    2011-10-01

    The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale {sup 76}Ge neutrinoless double-beta decay ({beta}{beta}(0{nu})-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and 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.

  9. The Majorana Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Aguayo, E.; Fast, J. E.; Hoppe, E. W.; Keillor, M. E.; Kephart, J. D.; Kouzes, R. T.; LaFerriere, B. D.; Merriman, J. H.; Orrell, J. L.; Overman, N. R. [Pacific Northwest National Laboratory, Richland, WA (United States); Avignone, F. T. III [Department of Physics and Astronomy, University of South Carolina, Columbia, SC (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States); Back, H. O. [Department of Physics, North Carolina State University, Raleigh, NC (United States); Triangle Universities Nuclear Laboratory, Durham, NC (United States); Barabash, A. S.; Konovalov, S. I.; Vanyushin, I.; Yumatov, V. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bergevin, M.; Chan, Y.-D.; Detwiler, J. A.; Loach, J. C. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA (United States); and others

    2011-12-16

    The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale {sup 76}Ge neutrinoless double-beta decay ({beta}{beta}(0{nu})-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and 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.

  10. Particle physics experiments 1980

    International Nuclear Information System (INIS)

    This report describes work carried out in 1980 on experiments approved by the Particle Physics Ezperiments Selection Panel. A table of contents giving, title and collaboration, technique, accelerator used, year of running, status as at December 1980, the spokesman and experimental code, is followed by unedited contributions from each of the 54 experiments included in this annual review including lists of submitted publications. (U.K.)

  11. Accelerator Experiments for Astrophysics

    OpenAIRE

    Ng, Johnny S. T.

    2003-01-01

    Many recent discoveries in astrophysics involve phenomena that are highly complex. Carefully designed experiments, together with sophisticated computer simulations, are required to gain insights into the underlying physics. We show that particle accelerators are unique tools in this area of research, by providing precision calibration data and by creating extreme experimental conditions relevant for astrophysics. In this paper we discuss laboratory experiments that can be ca...

  12. The MAJORANA Experiment

    OpenAIRE

    Majorana, The Collaboration

    2011-01-01

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

  13. Heat pipe flight experiments

    Science.gov (United States)

    Ollendorf, S.

    1973-01-01

    OAO 3 heat pipe flight experiments to check out weightlessness behavior are reported. Tested were a hollow channel screen system with helical grooves, a heat pipe with a wicking system of horizontal grooves, and a spiral artery pipe with multichannel fluid return to the evaporator. Flight experiment data proved that all heat pipe geometries containing wicking systems provided uninterrupted fluid return to the condensators during weightlessness and sufficient cooling for isothermalizing optical instruments onboard OAO.

  14. Chemical analysis experiment method

    International Nuclear Information System (INIS)

    This book arranges chemical analysis experiment methods. It lists experiments in Korean alphabetical order, which includes how to use a gas burner, drying machine, wide-mouth bottle, cooling device, desiccator, crucible, litmus paper, mess cylinder, mini timer, burner, a burette, a gravimeter, soda line, a water-jet pump, test tube, silica gel, adapter, a filter bed, calcium chloride, a glass tube and glass bottle, plastic device, a paper wiper, a vacuum gauge, color tape, tweezers and activated carbon.

  15. The CLOUD experiment

    CERN Multimedia

    Maximilien Brice

    2006-01-01

    The Cosmics Leaving Outdoor Droplets (CLOUD) experiment as shown by Jasper Kirkby (spokesperson). Kirkby shows a sketch to illustrate the possible link between galactic cosmic rays and cloud formations. The CLOUD experiment uses beams from the PS accelerator at CERN to simulate the effect of cosmic rays on cloud formations in the Earth's atmosphere. It is thought that cosmic ray intensity is linked to the amount of low cloud cover due to the formation of aerosols, which induce condensation.

  16. Review of experiments

    International Nuclear Information System (INIS)

    A study was made to examine the effects which raising the ISA from 200 x 200 GeV to 400 x 400 GeV would have on the ''canonical'' experiments. These were ''canonical'' in the sense that they span the full range of foreseeable physics and have served as topics in previous Summer Studies and Workshops which resulted in quite explicit hardware designs and experimental goals. The study results indicate that all of the ''canonical'' experiments survive. Some are actually improved, some are unaffected, and some require changes which are suggested. In general, the 900 experiments are relatively unaffected. The single arm small angle spectrometer, the wide aperture (FATS-WASP) spectrometer and the Coulomb interference experiment have the largest number of modifications suggested. No uniqueness to these solutions are claimed, and there may be more desirable radical approaches. It is, however, felt that the 400 x 400 GeV ISA not only permits the work on conceptual experiments from previous Summer Studies to be taken over entirely, but indicates areas of improvement in many of them. Specifics of the individual experiments are discussed

  17. Experiments in computing: a survey.

    Science.gov (United States)

    Tedre, Matti; Moisseinen, Nella

    2014-01-01

    Experiments play a central role in science. The role of experiments in computing is, however, unclear. Questions about the relevance of experiments in computing attracted little attention until the 1980s. As the discipline then saw a push towards experimental computer science, a variety of technically, theoretically, and empirically oriented views on experiments emerged. As a consequence of those debates, today's computing fields use experiments and experiment terminology in a variety of ways. This paper analyzes experimentation debates in computing. It presents five ways in which debaters have conceptualized experiments in computing: feasibility experiment, trial experiment, field experiment, comparison experiment, and controlled experiment. This paper has three aims: to clarify experiment terminology in computing; to contribute to disciplinary self-understanding of computing; and, due to computing's centrality in other fields, to promote understanding of experiments in modern science in general. PMID:24688404

  18. Modal identification experiment

    Science.gov (United States)

    Kvaternik, Raymond G.

    1992-01-01

    The Modal Identification Experiment (MIE) is a proposed on-orbit experiment being developed by NASA's Office of Aeronautics and Space Technology wherein a series of vibration measurements would be made on various configurations of Space Station Freedom (SSF) during its on-orbit assembly phase. The experiment is to be conducted in conjunction with station reboost operations and consists of measuring the dynamic responses of the spacecraft produced by station-based attitude control system and reboost thrusters, recording and transmitting the data, and processing the data on the ground to identify the natural frequencies, damping factors, and shapes of significant vibratory modes. The experiment would likely be a part of the Space Station on-orbit verification. Basic research objectives of MIE are to evaluate and improve methods for analytically modeling large space structures, to develop techniques for performing in-space modal testing, and to validate candidate techniques for in-space modal identification. From an engineering point of view, MIE will provide the first opportunity to obtain vibration data for the fully-assembled structure because SSF is too large and too flexible to be tested as a single unit on the ground. Such full-system data is essential for validating the analytical model of SSF which would be used in any engineering efforts associated with structural or control system changes that might be made to the station as missions evolve over time. Extensive analytical simulations of on-orbit tests, as well exploratory laboratory simulations using small-scale models, have been conducted in-house and under contract to develop a measurement plan and evaluate its potential performance. In particular, performance trade and parametric studies conducted as part of these simulations were used to resolve issues related to the number and location of the measurements, the type of excitation, data acquisition and data processing, effects of noise and nonlinearities, selection of target vibration modes, and the appropriate type of data analysis scheme. The purpose of this talk is to provide an executive-summary-type overview of the modal identification experiment which has emerged from the conceptual design studies conducted to-date. Emphasis throughout is on those aspects of the experiment which should be of interest to those attending the subject utilization conference. The presentation begins with some preparatory remarks to provide background and motivation for the experiment, describe the experiment in general terms, and cite the specific technical objectives. This is followed by a summary of the major results of the conceptual design studies conducted to define the baseline experiment. The baseline experiment which has resulted from the studies is then described.

  19. Skylab sleep monitoring experiment (experiment M133)

    Science.gov (United States)

    Frost, J. D., Jr.

    1975-01-01

    A summary of the conceptual design of the Skylab sleep monitoring experiment and a comprehensive compilation of the data-analysis results from the three Skylab missions is presented. One astronaut was studied per flight, electroencephalographic, electro-oculographic, and headmotion signals acquired during sleep by use of an elastic recording cap containing sponge electrodes and an attached miniature preamplifier/accelerometer unit are shown. A control-panel assembly, mounted in the sleep compartment, tested electrodes, preserved analog signals, and automatically analyzed data in real time (providing a telemetered indication of sleep stage). Results indicate that men are able to obtain adequate sleep in regularly scheduled eight-hour rest periods during extended space missions.

  20. Understanding customer experience.

    Science.gov (United States)

    Meyer, Christopher; Schwager, Andre

    2007-02-01

    Anyone who has signed up for cell phone service, attempted to claim a rebate, or navigated a call center has probably suffered from a company's apparent indifference to what should be its first concern: the customer experiences that culminate in either satisfaction or disappointment and defection. Customer experience is the subjective response customers have to direct or indirect contact with a company. It encompasses every aspect of an offering: customer care, advertising, packaging, features, ease of use, reliability. Customer experience is shaped by customers' expectations, which largely reflect previous experiences. Few CEOs would argue against the significance of customer experience or against measuring and analyzing it. But many don't appreciate how those activities differ from CRM or just how illuminating the data can be. For instance, the majority of the companies in a recent survey believed they have been providing "superior" experiences to customers, but most customers disagreed. The authors describe a customer experience management (CEM) process that involves three kinds of monitoring: past patterns (evaluating completed transactions), present patterns (tracking current relationships), and potential patterns (conducting inquiries in the hope of unveiling future opportunities). Data are collected at or about touch points through such methods as surveys, interviews, focus groups, and online forums. Companies need to involve every function in the effort, not just a single customer-facing group. The authors go on to illustrate how a cross-functional CEM system is created. With such a system, companies can discover which customers are prospects for growth and which require immediate intervention. PMID:17345685

  1. Commercial Experiment Transporter: COMET

    Science.gov (United States)

    Wessling, Francis C.; Robinson, Michael; Martinez, Ramiro S.; Gallimore, Thomas; Combs, Nick

    1994-09-01

    A launch system consisting of ground-support equipment, a four-stage rocket, a service module, a recovery system and a recovery site, and an orbital operations center is being assembled. The system is designed to launch 818 kg (1800 lb) to a 552-km (300-n.mi.) low earth orbit at a 40-deg inclination. Experiment space exists in both the service module and the recovery system. The service module provides space for 68 kg (150 lb) of experiments plus telemetry services, attitude control, and power and uses no consumables to maintain attitude. Consequently, the service module can maintain orbit attitude for years. Power of 400 W is supplied by solar cells and batteries for both experiment operation and housekeeping. The recovery system houses an experiment carrier for 136 kg (300 lb) of experiments, a retro rocket, a heat shield, and a parachute. An orbital operations control center provides tracking, telemetry, and commanding for the satellite. The payloads are also briefly described. The first launch was scheduled for 1995.

  2. AGS experiments, 1988, 1989, 1990

    International Nuclear Information System (INIS)

    This report contains: experimental areas layout; table of beam parameters and fluxes; experiment schedule ''as run''; experiment long range schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS experiments; and list of experimenters

  3. Nuclear power experience

    International Nuclear Information System (INIS)

    The International Conference on Nuclear Power Experience, organized by the International Atomic Energy Agency, was held at the Hofburg Conference Center, Vienna, Austria, from 13 to 17 September 1982. Almost 1200 participants and observers from 63 countries and 20 organizations attended the conference. The 239 papers presented were grouped under the following seven main topics: planning and development of nuclear power programmes; technical and economic experience of nuclear power production; the nuclear fuel cycle; nuclear safety experience; advanced systems; international safeguards; international co-operation. The proceedings are published in six volumes. The sixth volume contains a complete Contents of Volume 1 to 5, a List of Participants, Authors and Transliteration Indexes, a Subject Index and an Index of Papers by Number

  4. The UPTF experiment

    International Nuclear Information System (INIS)

    The Upper Plenum Test Facility, which was erected on commission of the Federal Ministry of Research and Technology at Mannheim on the original scale of 1:1, has been in operation since January 1987 and has yielded, as a result of 16 experiments conducted so far, data to describe thermohydraulic processes and for the further development of computer programs. The interest in investigations on emergency cooling on an original scale lies in the question of what will be the real course of events following hypothetic accidents in the primary system of a pressurized-water reactor. The experimental data therefore constitute an important prerequisite to continue computer programs further which describe the consecutive phases of accidents realistically. The paper deals with the objective and the most important plant characteristics of the UPTF experiment and offers insight into test results characteristic of this experiment. (orig./HP)

  5. The BLAST experiment

    Energy Technology Data Exchange (ETDEWEB)

    Hasell, D. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States)], E-mail: hasell@mit.edu; Akdogan, T. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Alarcon, R. [Arizona State University, Tempe, AZ 85287 (United States); Bertozzi, W. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Booth, E. [Boston University, Boston, MA 02215 (United States); Botto, T. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Calarco, J.R. [University of New Hampshire, Durham, NH 03824 (United States); Clasie, B.; Crawford, C.; DeGrush, A.; Dow, K. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Dutta, D. [Duke University, Durham, NC 27708-0305 (United States); Farkhondeh, M.; Fatemi, R. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Filoti, O. [University of New Hampshire, Durham, NH 03824 (United States); Franklin, W. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Gao, H. [Johannes Gutenberg-Universitaet, 55099 Mainz (Germany); Geis, E. [Arizona State University, Tempe, AZ 85287 (United States); Gilad, S. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); MIT-Bates Linear Accelerator Center, Middleton, MA 01949 (United States); Hersman, W. [University of New Hampshire, Durham, NH 03824 (United States)] (and others)

    2009-05-21

    The Bates large acceptance spectrometer toroid (BLAST) experiment was operated at the MIT-Bates Linear Accelerator Center from 2003 until 2005. The detector and experimental program were designed to study, in a systematic manner, the spin-dependent electromagnetic interaction in few-nucleon systems. As such the data will provide improved measurements for neutron, proton, and deuteron form factors. The data will also allow details of the reaction mechanism, such as the role of final state interactions, pion production, and resonances to be studied. The experiment used: a longitudinally polarized electron beam stored in the South Hall Storage Ring; a highly polarized, isotopically pure, internal gas target of hydrogen or deuterium provided by an atomic beam source; and a symmetric, general purpose detector based on a toroidal spectrometer with tracking, time-of-flight, Cherenkov, and neutron detectors. Details of the experiment and operation are presented.

  6. Japanese Experiment Module (JEM)

    Science.gov (United States)

    2003-01-01

    The Japanese Experiment Module (JEM) pressure module is removed from its shipping crate and moved across the floor of the Space Station Processing Facility at Kennedy Space Center (KSC) to a work stand. A research laboratory, the pressurized module is the first element of the JEM, named 'Kibo' (Hope) to arrive at KSC. Japan's primary contribution to the International Space Station, the module will enhance unique research capabilities of the orbiting complex by providing an additional environment in which astronauts will conduct experiments. The JEM also includes an exposed facility or platform for space environment experiments, a robotic manipulator system, and two logistics modules. The various JEM components will be assembled in space over the course of three Shuttle missions.

  7. Operating experience feedback

    International Nuclear Information System (INIS)

    Slovenian Nuclear Safety Administration (SNSA) has developed its own system for tracking, screening and evaluating the operating experiences of the nuclear installations. The SNSA staff regularly tracks the operating experiences throughout the world and screens them on the bases of applicability for the Slovenian nuclear facilities. The operating experiences, which pass the screening, are thoroughly evaluated and also recent operational events in these facilities are taken into account. If needed, more information is gathered to evaluate the conditions of the Slovenian facilities and appropriate corrective actions are considered. The result might be the identification of the need for modification at the licensee, the need for modification of internal procedures in the SNSA or even the proposal for the modification of regulations. Information system helps everybody to track the process of evaluation and proper logging of activities. (author)

  8. The KATRIN Experiment

    Science.gov (United States)

    Prall, Matthias

    2012-08-01

    The KArslruhe TRltium Neutrino experiment, KATRlN will determine the neutrino mass scale with a sensitivity of 0.2 e V/c2 (90%CL) via a measurement of the T2 ?-spectrum near its endpoint at 18.57 keV. The experiment consists of a windowless gaseous Tritium source, a differential- and cryopumping section, the pre- and main-spectrometer, both of the MAC-E filter type and a pixelated silicon detector. A background of less than 10 mHz and an energy resolution of 0.93 eV are necessary to achieve the desired sensitivity within 1000 days of data-taking. The experiment is currently reaching its final commissioning phase. In these proceedings, we focus on the main-spectrometer and its inner wire electrode.

  9. STELLA experiment: Hardware issues

    International Nuclear Information System (INIS)

    The STaged ELectron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceleration (ICA) experiment on Beamline no. 1. This beamline also features new quadrupoles and a new spectrometer capable of a +/-20% energy acceptance. A new laser beam transport system has been installed to permit accurate control of the laser phase for the laser beams sent to the IFEL and ICA devices. Detection of the microbunches will be performed using a coherent transition radiation (CTR) diagnostic similar to one already demonstrated at the ATF

  10. The NA52 experiment

    CERN Multimedia

    Klaus Pretzl

    2000-01-01

    The NA52 experiment is one of the seven experiments (NA44, NA45, NA49, NA50, NA52, WA97/NA57 and WA98) involved in CERN's Heavy Ion programme that provided evidence for the existence of a new state of matter, the quark-gluon plasma. In this state, quarks, instead of being bound up into more complex particles such as protons and neutrons, are liberated to roam freely. Theory predicts that this state must have existed at about 10 microseconds after the Big Bang, before the formation of matter as we know it today.

  11. STELLA Experiment: Hardware issues

    International Nuclear Information System (INIS)

    The Staged Electron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceleration (ICA) experiment on Beamline no. 1. This beamline also features new quadrupoles and a new spectrometer capable of a ±20% energy acceptance. A new laser beam transport system has been installed to permit accurate control of the laser phase for the laser beams sent to the IFEL and ICA devices. Detection of the microbunches are performed using a coherent transition radiation (CTR) diagnostic similar to one already demonstrated at the ATF

  12. Beam-dump experiments

    International Nuclear Information System (INIS)

    The CalTech-Rochester-Stanford Collaboration has demonstraded single muon events from high-energy proton-nucleus collisions. Further study is being made of the mechanism of charm production, by using different projectiles and different energies. The CERN beam-dump experiments have confirmed the earlier reported prompt electron-neutrino flux. The apparent inequality of the electron-neutrino and muon-neutrino fluxes is a work in progress, carried out by a third beam-dump experiment at CERN and FNAL

  13. HOCUS: hole closure experiments

    International Nuclear Information System (INIS)

    The free-fall penetrator is one of the conceptual disposal techniques considered by the Seabed Working Group for the disposal of heat-generating radioactive waste in the deep ocean. However, one aspect of penetrator behaviour that remains unresolved is the degree to which the sediment barrier is disturbed by the penetration event. The HOCUS experiments were therefore devised to measure the properties of the sediment filling the entry pathway of the penetrator. This paper describes the experiments which were performed in the Mediterranean in a water depth of approximately 250 m and used a sea floor platform to probe and core the entry pathways of a number of penetrators. (author)

  14. G0 experiment status

    Energy Technology Data Exchange (ETDEWEB)

    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.

  15. Steam generator tube experience

    International Nuclear Information System (INIS)

    This report provides information pertaining to the status of PWR steam generator tube experience and the resolution of unresolved safety issues A-3, A-4, and A-5 regarding steam generator tube integrity. It provides an overview of the types of problems which have occurred in PWR steam generators with particular emphasis on recent operating experience. The report also discusses short- and long-term corrective actions being pursued by the industry to resolve these problems, steam generator inspection and repair requirements which have been established to ensure the continued safe operation of PWR steam generators, and occupational radiation exposures associated with the above-listed activities

  16. The Double Chooz Experiment

    OpenAIRE

    Kaplan, Daniel M.

    2006-01-01

    There is broad consensus in the worldwide physics community as to the need for a new reactor-neutrino experiment to measure or limit the neutrino mixing angle $\\theta_{13}$. The Double Chooz Experiment, planned for operation in the years 2008-2011, will search for values of $\\sin^2{2\\theta_{13}}$ down to $\\approx$0.03. This will be the first new information on $\\theta_{13}$ in over a decade and will cover most of the remaining parameter space. A quick and relatively inexpens...

  17. The VIP Experiment

    International Nuclear Information System (INIS)

    The Pauli Exclusion Principle (PEP) is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its importance, it is very important to check it as thoroughly as possible. Here we describe the VIP (Violation of PEP) experiment, an improved version of the Ramberg and Snow experiment (Ramberg and Snow, Phys. Lett. B238 (1990) 438); VIP shall be performed at the Gran Sasso underground laboratories, and aims to test the Pauli Exclusion Principle for electrons with unprecedented accuracy, down to ?2/2 ? 10-30

  18. Experiments in radiochemistry

    International Nuclear Information System (INIS)

    Twelve experiments in radiochemistry, nuclear chemistry, radiation detection and radiation measurement are presented which have been tested in teaching practice. Criteria of selection were minimum apparative expenditure, preparation time, radiation exposure, and danger of incorporation or contamination. The experiments will teach students how to handle unsealed radioactive materials within a fraction of a permissible values and thus train them in radiochemical techniques of working. Theoretical, historical and topical aspects are mentioned in order to give the students some background. A detailed bibliography of relevant publications is given. (orig./HP)

  19. HTR-10 engineering experiments

    International Nuclear Information System (INIS)

    The Institute of Nuclear Energy Technology has undertaken a programme of engineering experiments to verify the design characteristics and performance of the HTR-10's components and systems. These include depressurization tests of the hot gas duct from operating pressure, tests of the control rod drive mechanism, performance validation of the hot gas duct under operating pressure and temperature conditions, two phase flow stability testing for the once through steam generator and performance testing of the fuel handling system. This paper provides a review of these engineering experiments. (author)

  20. Gas Chromatography Experiment

    Science.gov (United States)

    This Microsoft Word document describes a Gas Chromatography experiment involving the separation and quantitation of four butyl alcohol isomers. It has a complete background about the components of a GC instrument (with labeled pictures) and their functions. The exercise includes a section devoted to the measurement of response factors of the detector in use (here an FID). This would be a good experiment for a new faculty member to use as is, with slight modification to make it relevant to the particular GC system to be used.

  1. STELLA EXPERIMENT: HARDWARE ISSUES

    Energy Technology Data Exchange (ETDEWEB)

    KUSCHE,K.P.; CAMPBELL,L.P.; GOTTSCHALK,S.C.; KIMURA,W.D.; QUIMBY,D.C.; ROBINSON,K.E.; STEINHAUER,L.C.; BABZIEN,M.; BEN-ZVI,I.; GALLARDO,J.C.; POGORELSKY,I.V.; SKARITKA,J.; VAN STEENBERGEN,A.; YAKIMENKO,V.; CLINE,D.B.; HE,P.; LIU,Y.; FIORITO,R.B.

    1998-07-06

    The Staged Electron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceleration (ICA) experiment on Beamline {number_sign}1. This beamline also features new quadrupoles and a new spectrometer capable of a {+-}20% energy acceptance. A new laser beam transport system has been installed to permit accurate control of the laser phase for the laser beams sent to the IFEL and ICA devices. Detection of the microbunches are performed using a coherent transition radiation (CTR) diagnostic similar to one already demonstrated at the ATF.

  2. Electrical Resistance Experiment

    Science.gov (United States)

    The Materials Science and Technology Teacher's Workshop (MAST) provides this experiment on electrical resistance and glass. The module involves breaking the glass from a light bulb and then measuring the resistance across the bulb's electrodes. The lesson includes a step by step explanation of the laboratory procedure and a link to a video clip.

  3. Reconstructing Playschool Experiences

    Science.gov (United States)

    Einarsdottir, Johanna

    2011-01-01

    The current study was conducted with groups of first grade children (aged six years) in two primary schools in Reykjavik in an endeavour to ascertain how they recalled and reconstructed their playschool experiences. The children's playschool teachers were co-researchers participating in the data generation; they were, at the same time participants…

  4. The CHORUS experiment

    International Nuclear Information System (INIS)

    The Chorus experiment, which aims at a search for ?? ? ?? oscillations using the neutrino beam of the CERN-SPS, has successfully taken data in 1994 and 1995. The detection technique will be discussed and the performances of the apparatus as well as a status report will be given. (orig.)

  5. Gender Perception Experiment

    Science.gov (United States)

    This is the entry page for participation in the gender perception experiment. Participants view photographs of faces and only the mouth and chin regions are visible. Participants are asked to identify the gender of each stimulus and to indicate their confidence in their judgment.

  6. Long pulse diode experiments

    Science.gov (United States)

    McClenahan, Charles R.; Weber, Gerald J.; Omalley, Martin W.; Stewart, Joseph; Rinehart, Larry F.; Buttram, Malcolm T.

    1990-10-01

    A diode employing a thermionic cathode has produced 80 A beams at 200 kV for at least 6 microseconds. Moreover, the diode operates at rates as high as 1 Hz. EGUN simulations of the experimental geometry agree with the experiments. Finally, simulation of a proposed diode geometry predicts a 1 kA, 500 kV beam.

  7. GANIL radioactive beam experiments

    International Nuclear Information System (INIS)

    Examples of recent experiments performed at GANIL are used to highlight the present-day interest in secondary radioactive beams. Essentially, studies done by means of the doubly achromatic spectrometer LISE are discussed but future possibilities at GANIL are also mentioned. (author) 25 refs., 8 figs

  8. Northland Support Wilderness Experience.

    Science.gov (United States)

    Ringer, Martin

    Northland Support Wilderness Experience (NSWE) was a bicultural (White and Maori) wilderness therapy program that operated in New Zealand from 1985 to 1990. NSWE conducted 11 wilderness expeditions per year with approximately 10 participants each, and provided 18-month followups for participants, parents, and significant others. Participants were…

  9. Magnetized gun experiments

    International Nuclear Information System (INIS)

    In the Los Alamos Magnetized Gun Experiment we are attempting to produce a compact torus in a manner similar to an earlier experiment of Alfven. In our experiment a solenoidal coil is placed inside the inner electrode of a coaxial plasma gun. This coil produces an axial magnetic field inside the inner electrode which diverges and becomes a largely radial field in front of the gun muzzle. The idea is that when the gun is fired, the plasma escaping from the gun stretches these radial fields along the axial direction away from the gun, and these field lines can reconnect behind the plasma forming the poloidal field of the compact torus. The magnetic field generated by the gun current becomes the toroidal field and the major axis of the compact torus will be the same as the axis of the coaxial gun. Recent interest in this possible method of compact torus generation was stimulated by C. Hartman, and the approach is also being pursued in the field-reversed plasma gun experiment at LLL

  10. Lidar calibration experiments

    DEFF Research Database (Denmark)

    Ejsing JØrgensen, Hans; Mikkelsen, T.

    1997-01-01

    A series of atmospheric aerosol diffusion experiments combined with lidar detection was conducted to evaluate and calibrate an existing retrieval algorithm for aerosol backscatter lidar systems. The calibration experiments made use of two (almost) identical mini-lidar systems for aerosol cloud detection to test the reproducibility and uncertainty of lidars. Lidar data were obtained from both single-ended and double-ended Lidar configurations. A backstop was introduced in one of the experiments and a new method was developed where information obtained from the backstop can be used in the inversion algorithm. Independent in-situ aerosol plume concentrations were obtained from a simultaneous tracer gas experiment with SF6, and comparisons with the two lidars were made. The study shows that the reproducibility of the lidars is within 15%, including measurements from both sides of a plume. The correspondence with in-situ measurements is excellent. Finally, the new backstop method is able to reveal information which can close the lidar equation by obtaining the relation between backscatter and extinction in an aerosol cloud.

  11. The OLYMPUS experiment

    International Nuclear Information System (INIS)

    The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, ?pGpE/GpM, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01 GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately 25 -75 . Symmetric Moeller/Bhabha calorimeters at 1.29 and telescopes of GEM and MWPC detectors at 12 served as luminosity monitors. A total luminosity of approximately 4.5 fb-1 was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment.

  12. The Experience of Menarche.

    Science.gov (United States)

    Ruble, Diane N.; Brooks-Gunn, Jeanne

    1982-01-01

    Examines reactions to menarche and the subsequent effects of this experience as a function of preparation for and timing of menarche. A questionnaire including measures of responses about first menstruation, current symptoms, and self-image was completed by 639 girls in fifth through twelfth grades. (Author/MP)

  13. The OLYMPUS experiment

    International Nuclear Information System (INIS)

    The OLYMPUS experiment was designed to measure the ratio between the positron–proton and electron–proton elastic scattering cross-sections, with the goal of determining the contribution of two-photon exchange to the elastic cross-section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, ?pGEp/GMp, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01 GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately 25°–75°. Symmetric Møller/Bhabha calorimeters at 1.29° and telescopes of GEM and MWPC detectors at 12° served as luminosity monitors. A total luminosity of approximately 4.5 fb?1 was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment

  14. Electronics for LHC Experiments

    International Nuclear Information System (INIS)

    This document gathers the abstracts of most presentations made at this workshop on electronics for the large hadron collider (LHC) experiments. The presentations were arranged into 6 sessions: 1) electronics for tracker, 2) trigger electronics, 3) detector control systems, 4) data acquisition, 5) electronics for calorimeters and electronics for muons, and 6) links, power systems, grounding and shielding, testing and quality assurance

  15. ATA beam director experiment

    International Nuclear Information System (INIS)

    This report describes beam director elements for an experiment at the Advanced Test Accelerator. The elements described include a vernier magnet for beam aiming, an achromat magnet, and an isolation system for the beam interface. These components are built at small scale for concept testing

  16. A Degrading Experience

    Science.gov (United States)

    Seba Sheavly

    2014-05-28

    In this activity, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation. Learners discover that debris made from natural materials, while biodegradable, can still be considered pollutants and can still harm the marine environment.

  17. The KOSI experiments

    International Nuclear Information System (INIS)

    Whipply's icy conglomerate model of the comet nucleus has enjoyed progressively increasing acceptance and success in explaining Earth-based observations of comets since its very inception (Whipple, 1950, 1951). According to this model, the nucleus is a solid body composed of frozen gases and dust. The missions to Comet Halley in 1986, in particular the Vega and the Giotto missions, have confirmed that there is a single solid nucleus that is the root of all the observed phenomena that can be associated with an active comet. Two new comet mission (CRAF and Rosetta) are planned by NASA and ESA to extract further details about the structure and composition of the nucleus. Laboratory experiments play an important role in defining and identifying the objectives of these missions. Although such experiments have been carried out in many laboratories in Europe, the Soviet Union, the USA, Israel, and Japan, the KOSI experiments are the first large-scale investigations (in spatial dimensions and duration). (KOSI is an acronym for Kometensimulation, German for comet simulation). Starting with a summary and explanation of the KOSI experiments by Grun et al. (1991) and some of the experimental limitations by Keller and Markiewicz (1991), the author reports in this special issue the progress achieved about halfway through the planned series of investigations

  18. The Baikal-experiment

    Energy Technology Data Exchange (ETDEWEB)

    Belolaptikov, I.A.; Bezrukov, L.B.; Borisovets, B.A.; Bugaev, E.V.; Domogatsky, G.V.; Doroshenko, A.A.; Galperin, M.D.; Golikov, A.V.; Jilkibaev, Zh.A.M.; Klabukov, A.M.; Klimushin, S.I.; Lubsandorzhiev, B.K.; Panfilov, A.I.; Sokal' sky, I.A.; Stepanov, L.N.; Trofimenko, I.I. (AN SSSR, Moscow. Inst. Yadernykh Issledovanij (USSR)); Budnev, N.M.; Chensky, A.G.; Dobrynin, V.I.; Fomin, A.D.; Koshechkin, A.P.; Lanin, J.B.; Litunenko, G.A.; Lopin, A.V.; Naumov, V.A.; Nemchenko, M.I.; Parfenov, Yu.A.; Pavlov, A.A.; Poleschuk, V.A.; Primin, V.A.; Schestakov, A.A.; Taraschansky, V.A.; Yakup, A.V.; Zurbanov, V.L. (Irkutskij Gosudarstvennyj Univ. (USSR)); Golikov, A.V.; Saslavskaya, E.S.; Kabikov, V.B.; Kuzmichev, L.A.; Osipova, E.A. (Moskovskij Gosudarstvennyj Univ. (USSR)); Kusner, Yu.S.; Scherstyankin, P.P. (AN SSSR, Irkutsk (USSR). Limnological Inst.); Dudkin, G.N.; Ovcharov, A.M.; Padalko, V.M. (Tomskij Politekhnicheskij Inst. (USSR)); Krabi, J.; Spiering, C.; Weinert, T.; Wischnewski, R

    1990-04-01

    We review the historical development and the present status of the Baikal experiment, and sketch the G-string detector 'NT-200', which is planned to be deployed until 1993 and to study neutrino astrophysics, cosmic rays and particle physics. (orig.).

  19. The MAJORANA Experiment

    International Nuclear Information System (INIS)

    The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in 76Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

  20. Understanding Popper's Experiment

    OpenAIRE

    Qureshi, Tabish

    2004-01-01

    An experiment proposed by Karl Popper is considered by many to be a crucial test of quantum mechanics. Although many loopholes in the original proposal have been pointed out, they are not crucial to the test. We use only the standard interpretation of quantum mechanics to point out what is fundamentally wrong with the proposal, and demonstrate that Popper's basic premise was faulty.

  1. Ongoing experiments: diagnostics requirements

    International Nuclear Information System (INIS)

    The paper reviews the fuel motion diagnostics needs for ongoing LMFBR safety experiments over approximately the next five years, with the discussion centered on TREAT. Brief comments on the direction in which clad motion diagnostics requirements are expected to develop are also presented

  2. The COMPASS experiment

    CERN Multimedia

    Laurent Guiraud

    1999-01-01

    Detail of one of the magnets on the Common Muon and Proton Apparatus for Structure and Spectroscopy (COMPASS) experiment. COMPASS studies the structure of composite particles which interact via the strong force, called hadrons. These have a complicated internal structure due to the nature of their force carriers, gluons, which can form self interacting bunches called glueballs.

  3. DSWA calorimeter bomb experiments

    Energy Technology Data Exchange (ETDEWEB)

    Cunningham, B

    1998-10-01

    Two experiments were performed in which 25 grams of TNT were detonated inside an expended detonation calorimeter bomb. The bomb had a contained volume of approximately 5.28 liters. In the first experiment, the bomb was charged with 3 atmospheres of nitrogen. In the second, it was charged with 2.58 atmospheres (23.1 psi gage) of oxygen. In each experiment pressure was monitored over a period of approximately 1200 microseconds after the pulse to the CDU. Monitoring was performed via two 10,000 psi 102AO3 PCB high frequency pressure transducers mounted symmetrically in the lid of the calorimeter bomb. Conditioners used were PCB 482As. The signals from the transducers were recorded in digital format on a multi channel Tektronix scope. The sampling frequency was 10 Mhz (10 samples per microsecond). After a period of cooling following detonation, gas samples were taken and were subsequently submitted for analysis using gas mass spectrometry. Due to a late request for post shot measurement, it was only possible to make a rough estimate of the weight of debris (carbon) remaining in the calorimeter bomb following the second experiment.

  4. Word Recognition Experiment

    Science.gov (United States)

    This is the entry page for participating in the Word Recognition Experiment. This study involves a series of word recognition trials in which participants are flashed a word either in the left or in the right hemifield and then identify the presented word. Performance is measured as the minimum presentation display time required for an individual to correctly identify the word.

  5. Implicit Association Experiment

    Science.gov (United States)

    This is the entry page for participation in the Implicit Association Experiment. Greenwald, McGhee and Schwartz (1998) pioneered the use of implicit association tests. Implicit association tests (IATs) measure the relative ease with which people are able to make associations between certain groups of people (e.g., older adults) and the concepts of "good" and "bad."

  6. Be A Juror Experiment

    Science.gov (United States)

    This is the entry page to participate in the be a juror experiment. Participants are in one of three treatment conditions (a) no eyewitness, (b) unrefuted eyewitness, and (c) discredited eyewitness. Participants in this study rate their belief about the defendant's guilt. The rating scale ranges from a 1 (definitely not guilty) to a 7 (definitely guilty).

  7. FLORIDA TOWER FOOTPRINT EXPERIMENTS

    Energy Technology Data Exchange (ETDEWEB)

    WATSON,T.B.; DIETZ, R.N.; WILKE, R.; HENDREY, G.; LEWIN, K.; NAGY, J.; LECLERC, M.

    2007-01-01

    The Florida Footprint experiments were a series of field programs in which perfluorocarbon tracers were released in different configurations centered on a flux tower to generate a data set that can be used to test transport and dispersion models. These models are used to determine the sources of the CO{sub 2} that cause the fluxes measured at eddy covariance towers. Experiments were conducted in a managed slash pine forest, 10 km northeast of Gainesville, Florida, in 2002, 2004, and 2006 and in atmospheric conditions that ranged from well mixed, to very stable, including the transition period between convective conditions at midday to stable conditions after sun set. There were a total of 15 experiments. The characteristics of the PFTs, details of sampling and analysis methods, quality control measures, and analytical statistics including confidence limits are presented. Details of the field programs including tracer release rates, tracer source configurations, and configuration of the samplers are discussed. The result of this experiment is a high quality, well documented tracer and meteorological data set that can be used to improve and validate canopy dispersion models.

  8. Personal Experiences of China

    Science.gov (United States)

    Hessler, Peter; Bradeen, Ryan; Wang, Richard; Masalski, Kathleen Woods

    2010-01-01

    This article presents four stories of personal experiences of China. In "A Journey Between China's Past and Present," Peter Hessler, a former Peace Corps volunteer and author, highlights misconceptions between Chinese and Americans and the desire both peoples share for knowledge about one another. In "Life on Liberation Avenue," Ryan Bradeen…

  9. The OLYMPUS experiment

    Science.gov (United States)

    Milner, R.; Hasell, D. K.; Kohl, M.; Schneekloth, U.; Akopov, N.; Alarcon, R.; Andreev, V. A.; Ates, O.; Avetisyan, A.; Bayadilov, D.; Beck, R.; Belostotski, S.; Bernauer, J. C.; Bessuille, J.; Brinker, F.; Buck, B.; Calarco, J. R.; Carassiti, V.; Cisbani, E.; Ciullo, G.; Contalbrigo, M.; D'Ascenzo, N.; De Leo, R.; Diefenbach, J.; Donnelly, T. W.; Dow, K.; Elbakian, G.; Eversheim, D.; Frullani, S.; Funke, Ch.; Gavrilov, G.; Gläser, B.; Görrissen, N.; Hauschildt, J.; Henderson, B. S.; Hoffmeister, Ph.; Holler, Y.; Ice, L. D.; Izotov, A.; Kaiser, R.; Karyan, G.; Kelsey, J.; Khaneft, D.; Klassen, P.; Kiselev, A.; Krivshich, A.; Lehmann, I.; Lenisa, P.; Lenz, D.; Lumsden, S.; Ma, Y.; Maas, F.; Marukyan, H.; Miklukho, O.; Movsisyan, A.; Murray, M.; Naryshkin, Y.; O'Connor, C.; Perez Benito, R.; Perrino, R.; Redwine, R. P.; Rodríguez Piñeiro, D.; Rosner, G.; Russell, R. L.; Schmidt, A.; Seitz, B.; Statera, M.; Thiel, A.; Vardanyan, H.; Veretennikov, D.; Vidal, C.; Winnebeck, A.; Yeganov, V.

    2014-03-01

    The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross-sections, with the goal of determining the contribution of two-photon exchange to the elastic cross-section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, ?pGEp/GMp, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01 GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately 25°-75°. Symmetric Møller/Bhabha calorimeters at 1.29° and telescopes of GEM and MWPC detectors at 12° served as luminosity monitors. A total luminosity of approximately 4.5 fb-1 was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment.

  10. Literature on photoproduction experiments

    International Nuclear Information System (INIS)

    Literature on gamma-proton, gamma-neutron, gamma-deuteron, gamma-nucleus experiments, inclusive photoproduction, particle yields in gamma-proton and gamma-nucleus, inelastic compton scattering, search for new particles, Primakoff effect, photofission, and QED-tests are compiled. (BJ)

  11. The big experiment

    CERN Multimedia

    MacEacheran, Mike

    2010-01-01

    "From an academic laboratory in Switzerland, Cern, the European Organisation for Nuclear Research, is conducting physics experiments that are mesmerising everyone. But are its scientitsts really going to answer the questions of life, the Univers and everyhing in between?" (4 pages)

  12. Spina Bifida Experience

    Medline Plus

    Full Text Available ... videos to watch and share. Share this Video Link: www.cdc.gov/NCBDDD/video/SpinaBifidaExperience/ Embed: To ... and select the "Save Target As…" option. Download Link Small .wmv (10MB) Medium .wmv (13MB) High-Resolution . ...

  13. Experiment R701

    CERN Multimedia

    1974-01-01

    This experiment was designed by the CERN-Aachen-MPI/Munich-Heidelberg Collaboration to study inelastic proton-proton collisions with streamer chambers. The photo shows the lower streamer chamber closely fitting around the central bicone vacuum chamber at I-7. The upper chamber, here removed, was similarly fitted (Photo Archive 7401099).

  14. Recalling Harassment, Reconstructing Experience.

    Science.gov (United States)

    Kidder, Louise H.; And Others

    1995-01-01

    Examined how events considered "normal" or "acceptable" by some people at one time are now recalled and reconstructed as "harassment." Analysis is presented of the stories of 21 women who experienced events that earlier were not called sexual harassment. It compares the experiences of "preverbal" children and adults who recall events as assaultive…

  15. An NMR Kinetics Experiment.

    Science.gov (United States)

    Kaufman, Don; And Others

    1982-01-01

    Outlines advantages of and provides background information, procedures, and typical student data for an experiment determining rate of hydration of p-methyoxyphenylacetylene (III), followed by nuclear magnetic resonance spectroscopy. Reaction rate can be adjusted to meet time framework of a particular laboratory by altering concentration of…

  16. A Vibrating String Experiment

    Science.gov (United States)

    Tsutsumanova, Gichka; Russev, Stoyan

    2013-01-01

    A simple experiment demonstrating the excitation of a standing wave in a metal string is presented here. Several tasks using the set-up are considered, which help the students to better understand the standing waves, the interaction between electric current and magnetic field and the resonance phenomena. This can serve also as a good lecture…

  17. Alpha Antihydrogen Experiment

    CERN Document Server

    Fujiwara, M C; Ashkezari, M D; Baquero-Ruiz, M; Bertsche, W; Bray, C C; Butler, E; Cesar, C L; Chapman, S; Charlton, M; Cesar, C L; Fajans, J; Friesen, T; Gill, D R; Hangst, J S; Hardy, W N; Hayano, R S; Hayden, M E; Humphries, A J; Hydomako, R; Jonsell, S; Kurchaninov, L; Lambo, R; Madsen, N; Menary, S; Nolan, P; Olchanski, K; Olin, A; Povilus, A; Pusa, P; Robicheaux, F; Sarid, E; Silveira, D M; So, C; Storey, J W; Thompson, R I; van der Werf, D P; Wilding, D; Wurtele, J S; Yamazaki, Y

    2011-01-01

    ALPHA is an experiment at CERN, whose ultimate goal is to perform a precise test of CPT symmetry with trapped antihydrogen atoms. After reviewing the motivations, we discuss our recent progress toward the initial goal of stable trapping of antihydrogen, with some emphasis on particle detection techniques.

  18. Experimenting with Guitar Strings

    Science.gov (United States)

    LoPresto, Michael C.

    2006-11-01

    What follows is a description of a simple experiment developed in a nonmathematical general education science course on sound and light for fine arts students in which a guitar is used with data collection hardware and software to verify the properties of standing waves on a string.

  19. Stage theta pinch experiments

    International Nuclear Information System (INIS)

    The Staged Theta Pinch program is designed to study the technological and physics problems associated with producing fat plasmas and separating the implosion heating from the adiabatic compression. Several methods of implosion heating are discussed. Circuit diagrams and theoretical magnetic field behavior are described for the STP and resonant heating experiments. (MOW)

  20. Experiments with Dipole Antennas

    Science.gov (United States)

    Kraftmakher, Yaakov

    2009-01-01

    Employment of a data-acquisition system for data collection and calculations makes experiments with antennas more convenient and less time consuming. The determined directional patterns of the dipole antennas of different lengths are in reasonable agreement with theory. The enhancement of the signal by using a reflector is demonstrated, and a…

  1. Vapour suppression pool experiments

    International Nuclear Information System (INIS)

    A report on the experiments on vapour suppression pool system for Narora Atomic Power Project is presented. The efficiency of the suppression pool in cooling the hot air passing through it and the pressure and temperature transients following a continuous flow of air -steam mixture from VI to V2 were investigated. (M.G.B.)

  2. Chlorine solar neutrino experiment

    International Nuclear Information System (INIS)

    The chlorine solar neutrino experiment in the Homestake Gold Mine is described and the results obtained with the chlorine detector over the last fourteen years are summarized and discussed. Background processes producing 37Ar and the question of the constancy of the production rate of 37Ar are given special emphasis

  3. The Baikal-experiment

    International Nuclear Information System (INIS)

    We review the historical development and the present status of the Baikal experiment, and sketch the G-string detector 'NT-200', which is planned to be deployed until 1993 and to study neutrino astrophysics, cosmic rays and particle physics. (orig.)

  4. SAMBA Project Experiences

    Science.gov (United States)

    Fuhrhop, Christian; Vaidya, Raju; Mayora, Oscar; Furtado, Elizabeth

    The purpose of the SAMBA project, running from January 2007 to February 2009, was to create a framework for allowing local communities and citizens (including low income population) to access community-oriented content and services by means of iDTV channels, specifically MHP over DVB-T. This paper summarises the project and the experiences gained from it.

  5. PERICLES 2D experiment

    International Nuclear Information System (INIS)

    Scope of the lecture was the modelling of severe reactor accidents. The PERICLES 2D experiment was compared to CATHARE 3D simulation results considering progression of a quench front inside the reactor core, steam flow rates, heat conduction, cladding temperature. (uke)

  6. Detectors of TRISTAN experiments

    International Nuclear Information System (INIS)

    On November 19, 1986, since the first electron-positron collision reaction was observed, TRISTAN has been operated smoothly, and still at present while the beam intensity is increased gradually, experiment is carried out. The results on elementary particle physics obtained so far at TRISTAN have been reported in detail. In this report, the measuring instruments used for the experiment of TRISTAN are described. Generally in the experiment of high energy physics, by measuring the information of the particles generated by elementary particle reaction, namely the kinds of particles energy, momentum vectors and so on, the pursuit of the basic law at the deep level for the interaction among elementary particles is carried out. In the experiment of TRISTAN, it is necessary to do efficient observation over the solid angle as wide as possible. The objects of direct measurement in TRISTAN are only charged particles and photons. There are three measuring instruments in TRISTAN, that is, AMY, TOPAZ and VENUS. The measurement of the momentum of charged particles, calorimeters for measuring energy and the identification of particles are reported. (K.I)

  7. Electronics for LHC Experiments

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This document gathers the abstracts of most presentations made at this workshop on electronics for the large hadron collider (LHC) experiments. The presentations were arranged into 6 sessions: 1) electronics for tracker, 2) trigger electronics, 3) detector control systems, 4) data acquisition, 5) electronics for calorimeters and electronics for muons, and 6) links, power systems, grounding and shielding, testing and quality assurance.

  8. Self managing experiment resources

    Science.gov (United States)

    Stagni, F.; Ubeda, M.; Tsaregorodtsev, A.; Romanovskiy, V.; Roiser, S.; Charpentier, P.; Graciani, R.

    2014-06-01

    Within this paper we present an autonomic Computing resources management system, used by LHCb for assessing the status of their Grid resources. Virtual Organizations Grids include heterogeneous resources. For example, LHC experiments very often use resources not provided by WLCG, and Cloud Computing resources will soon provide a non-negligible fraction of their computing power. The lack of standards and procedures across experiments and sites generated the appearance of multiple information systems, monitoring tools, ticket portals, etc... which nowadays coexist and represent a very precious source of information for running HEP experiments Computing systems as well as sites. These two facts lead to many particular solutions for a general problem: managing the experiment resources. In this paper we present how LHCb, via the DIRAC interware, addressed such issues. With a renewed Central Information Schema hosting all resources metadata and a Status System (Resource Status System) delivering real time information, the system controls the resources topology, independently of the resource types. The Resource Status System applies data mining techniques against all possible information sources available and assesses the status changes, that are then propagated to the topology description. Obviously, giving full control to such an automated system is not risk-free. Therefore, in order to minimise the probability of misbehavior, a battery of tests has been developed in order to certify the correctness of its assessments. We will demonstrate the performance and efficiency of such a system in terms of cost reduction and reliability.

  9. Operational experience of HFETR

    International Nuclear Information System (INIS)

    Some of practical experiances obtained from the decadal operation of HFETR are described, such as the simplifide calculation method of the maximum permissible power, interference effect and relative efficiency calibration of control rods. Features of improved primary coolant system, loss of coolant monitoring during operation and so on are presented. Also, accident analysis and treatment are briefly introduced

  10. Respiration: An Experiment.

    Science.gov (United States)

    Stott, P. A.

    1978-01-01

    This article describes how a gas chromatograph may be used to determine the amount of carbon dioxide in exhaled air. The experiment has been used as part of a demonstration exercise at a local science fair and proved of interest to all age groups. (Author/BB)

  11. CANDU operating experience

    International Nuclear Information System (INIS)

    The CANDU Pressurized Heavy Water (CANDU-PHW) type of nuclear electric generating station has been developed jointly by Atomic Energy of Canada Limited and Ontario Hydro. This paper highlights Ontario Hydro's operating experience using the CANDU-PHW system, with a focus on the operating performance and costs, reliability of system components and nuclear safety considerations both to the workers and the public

  12. Parent Hearing Aid Experiences

    Science.gov (United States)

    Munoz, Karen; Roberts, Mallory; Mullings, Day; Harward, Richard

    2012-01-01

    This study addresses parent experiences in obtaining and managing hearing aids for their young child. The purpose was to identify challenges parents encounter to determine what state agencies can do to improve parent access to amplification. Data were collected July through September of 2010; 40 parents of children ages birth to 3 years old…

  13. CANDU operating experience

    International Nuclear Information System (INIS)

    The CANDU pressurized heavy water (PHW) type of nuclear electric generating station has been developed jointly by Atomic Energy of Canada Limited and Ontario Hydro. Ontario Hydro's operating experience using the CANDU-PHW system is described concentrating on operating performance and costs, the reliability of systems components, and nuclear safety considerations both for the workers and the public. (author)

  14. Experiences of cognitive coaching

    Directory of Open Access Journals (Sweden)

    Kristina Gyllensten

    2011-12-01

    Full Text Available Objectives: Cognitive coaching and cognitive behavioural coaching are approaches practiced by many coaching psychologists (Palmer & Whybrow, 2007. However, there is a lack of qualitative studies evaluating these approaches.The main objective of/with the present study was to investigate a number of participants’ experiences of cognitive coaching.

  15. Experiments in Computing: A Survey

    OpenAIRE

    Matti Tedre; Nella Moisseinen

    2014-01-01

    Experiments play a central role in science. The role of experiments in computing is, however, unclear. Questions about the relevance of experiments in computing attracted little attention until the 1980s. As the discipline then saw a push towards experimental computer science, a variety of technically, theoretically, and empirically oriented views on experiments emerged. As a consequence of those debates, today's computing fields use experiments and experiment terminology in a variet...

  16. Accelerator and reactor neutrino experiments

    CERN Document Server

    Nishikawa, K

    2001-01-01

    In this article results of neutrino oscillation from accelerator and reactor experiments are reviewed .The remaining questions and future experiments, which will address these questions, are described.

  17. PsychExperiments: Psychology Experiments on the Internet

    Science.gov (United States)

    PsychExperiments is a collection of online cognitive psychology and social psychology experiments, accompanied by a cumulative data archive and download utilities for both data and experiment source code. Students collect data using one or more of the experiments and download it for analysis. The experiments include demonstrations, lab experiments for collecting data for in-class analysis, and research experiments in which participants take part and contribute data to an archive. Topics include the psychology of jurors, facial recognition, learning and memory, perception of gender, reaction time, and many others. Other resources include downloadable Excel macros for analyzing data from the experiments, and support materials for those who want to use and/or develop experiments at the site. A training manual for creating experiments in Authorware is available for purchase.

  18. For the love of experience: changing the experience economy discourse

    OpenAIRE

    Snel, J. M. C.

    2011-01-01

    The attention for experiences as economic offerings has increased enormously in the last decade. However, the lack of a clear definition of experience and the bias towards the organization’s perspective in the discourse cause much confusion. In this study experience is taken back to its basis: the encounter between an individual and his or her environment. Different concepts, effects and values of experience are defined to construct a more integrative discourse for the experience economy fr...

  19. Simulation of chamber experiments

    International Nuclear Information System (INIS)

    The description of the system of computer simulation of experiments conducted by means of track detectors with film data output is given. Considered is the principle of organization of computer model of the chamber experiment comprising the following stages: generation of events, generation of measurements, ge-- neration of scanning results, generation of distorbions, generated data calibration, filtration, events reconstruction, kinematic identification, total results tape formation, analysis of the results. Generation programs are formed as special RAM-files, where the RAM-file is the text of the program written in FORTRAN and divided into structural elements. All the programs are a ''part of the ''Hydra'' system. The system possibilities are considered on the base of the CDSC-6500 computer. The five-beam event generation, creation data structure for identification and calculation by the kinematic program take about 1s of CDC-6500 computer time

  20. Modeling Mendel's Pea Experiment

    Science.gov (United States)

    Jeanette Nolin

    2009-01-01

    This modeling activity allows learners to discover for themselves what Mendel uncovered in his famous pea experiments. By modeling Mendel's pea experiments, learners will form their own explanations for the result of crossing a true-breeding round pea plant with a true-breeding wrinkled pea plant (the F1 generation) and for the results of allowing an F1 pea plant to self pollinate (the F2 generation). They will then compare their explanations to Mendel's own conclusions. This is an excellent introduction to Mendelian genetics which generates discussion and stimulates interest in Mendel's principles. Learners are encouraged to use the same observation and critical thinking skills that Mendel used. This activity can be instructor-led as a demonstration or conducted by groups of learners.

  1. HTR fuel manufacturing experience

    International Nuclear Information System (INIS)

    The development of the HTR line promises the availability of a number of technologies which can be used in many area of energy supply. Special properties of nuclear energy exploitation in high-temperature reactors include economical uranium consumption and lower pollution of the environment. Fuel cycle, design and irradiation performance requirements impose restraints on the fuel elements fabrication processes. Both kernel and coating fabrication processes are flexible enough to adapt to the needs of the various existing and proposed high temperature gas-cooled reactors. Extensive experience has demonstrated that fuel kernels with excellent sphericity and uniformity can be produced by wet chemical processes. Similarly experience has shown that the various multilayer coatings can be produced to fully meet design and specification requirements. In a comprehensive qualification program for fuel elements the low failure fraction of coated fuel particles, optimal matrix behavior and the required fission product retention of integral fuel elements was successfully demonstrated

  2. Commissioning the CMS experiment

    CERN Document Server

    Camporesi, T.

    2008-01-01

    The CMS experiment is getting ready to take data at the LHC accelerator at CERN. Due to late delivery of the experimental caverns the detector had to be pre-assembled on the surface and lowered in large segments. This has constrained the commissioning strategy of the experiment. Global commissioning has started in Spring of 2007 and has progressed in parallel with the construction and assembly of detector and services underground. This paper describes the strategy adopted in order to commission components of the system in incremental steps in order to be ready to accept collisions from LHC with a well debugged and understood system, including the detector, acquisition system, trigger, software, computing and data shipping.

  3. The Stanford gyroscope experiment

    Science.gov (United States)

    Everitt, C. W. F.

    1971-01-01

    Gyroscopes in motion about a massive body are found to have two main effects: (1) geodetic effect, solely due to motion of the gyroscope about the earth and (2) motional effect, due to earth rotation. An experiment is proposed to measure the precession rate of one or more gyroscopes, mounted either on earth or in a satellite, with respect to the axis of a telescope pointing at a suitable fixed star. The procedures and apparatus to be used in this experiment are outlined; the error analysis is summarized. The relation of error to size, speed, and mechanical properties of rotor is presented, along with the design requirements for accuracy of 10 to the -16th power rad/s.

  4. THE SCHOOL CLIMATE EXPERIENCES

    Directory of Open Access Journals (Sweden)

    JANA KANTOROVÁ

    2011-01-01

    Full Text Available This paper analyses the quality of the school climate. One of its objectives isto define such basic terms as environment, atmosphere, climate, and selected climatevariants, above all the school climate. Attention is also paid to the following five areasof school life, which are in my opinion of significance: 1 the overall attitude to schooland the motivation to study 2 teachers` qualities and competences 3 school rules andthe discipline in class 4 the solidarity of the class as a social group 5 thearchitectural, aesthetic and hygienic aspects of the school. The thesis also wants topresent new practical methods supported by long experience of the school climategained abroad and even by similar experience lately picked up in the Czech republic.

  5. Experiment at Vinca

    International Nuclear Information System (INIS)

    An important experiment to determine the biological effects of acute and high-level radiation exposure is to be carried out under the auspices of the International Atomic Energy Agency at the Boris Kidric Institute at Vinca, near Belgrade, Yugoslavia. The experiment will give more precise information about the doses of neutron and gamma radiation received by some persons during a brief uncontrolled run of the zero-power reactor at Vinca on 15 October 1958. The exposed persons were given long and careful medical attention in Paris and treated by a unique method of counteracting radiation injury. If the levels of their exposure can now be ascertained more precisely, it will be possible to gain a better understanding of the correlation between radiation doses and their effects, and perhaps also to develop the method of treatment for wider application

  6. Gross decontamination experiment report

    Energy Technology Data Exchange (ETDEWEB)

    Mason, R.; Kinney, K.; Dettorre, J.; Gilbert, V.

    1983-07-01

    A Gross Decontamination Experiment was conducted on various levels and surfaces of the TMI - Unit 2 reactor building in March 1982. The polar crane, D-rings, missile shields, refueling canals, refueling bridges, equipment, and elevations 305' and 347'-6'' were flushed with low pressure water. Additionally, floor surfaces on elevation 305' and floor surfaces and major pieces of equipment on elevation 347'-6'' were sprayed with high pressure water. Selective surfaces were decontaminated with a mechanical scrubber and chemicals. Strippable coating was tested and evaluated on equipment and floor surfaces. The effectiveness, efficiency, and safety of several decontamination techniques were established for the large, complex decontamination effort. Various decontamination equipment was evaluated and its effectiveness was documented. Decontamination training and procedures were documented and evaluated, as were the support system and organization for the experiment.

  7. Operating experience with snubbers

    International Nuclear Information System (INIS)

    Recent operating experience with hydraulic and mechanical snubbers has indicated that there is a need to evaluate current practice in the industry associated with snubber qualification testing programs, design and analysis procedures, selection and specification criteria, and the preservice inspection and inservice surveillance programs. The report provides a summary of operational experiences that represent problems that are generic throughout the industry. Generic Task A-13 is part of the NRC Program for the Resolution of Generic Issues Related to Nuclear Power Plants described in NUREG-0410. The report is based upon a rather large amount of data that have become available in the past four years. These data have been evaluated by the Division of Operating Reactors to develop a data base for use in connection with several NRC activities including Category A, Technical Activity A-13 (Snubbers); the Standard Review Plan; future Regulatory Guides; ASME Code Provisions; and various technical specifications of operating nuclear power plants

  8. Experiments around I-8

    CERN Multimedia

    1975-01-01

    The lithium transition-radiation detectors and the large liquid argon calorimeters of experiment R806T are shown above and below the intersection at I-8 (Brookhaven-CERN-Saclay-Syracuse-Yale Collaboration, Study of large transverse momentum phenomena by electron and photon detection). At 90 deg to the intersecting beams are the monitoring proporional chambers of experiment R805 (Measurement of real to imaginary ratio of forward scattering amplitude - Coulomb interference - by the CERN-Rome Collaboration). Left and right of the intersection one sees, symmetrically placed around the interaction region, the large scintillation counters hodoscopes used by R801 (Pisa-Stony Brook Collaboration) to measure the pp total cross section and the features of inelastic collisions.

  9. The ECHo experiment

    International Nuclear Information System (INIS)

    The determination of the absolute scale of the neutrino masses is one of the most challenging questions in particle physics. Different approaches are followed to achieve a sensitivity on neutrino masses in the sub-eV range. Among them, experiments exploring the beta decay and electron capture processes of suitable nuclides can provide necessary information on the electron neutrino mass value. In this talk we present the Electron Capture 163Ho experiment ECHo, which aims to investigate the electron neutrino mass in the sub-eV range by means of the analysis of the calorimetrically measured energy spectrum following the electron capture process of 163Ho. A high precision and high statistics spectrum is measured by means of low temperature magnetic calorimeter arrays. We present preliminary results obtained with a first prototype of single channel detectors as well as the participating groups and their on-going developments.

  10. BIOPAN -- Flight experiment ''CARD''

    International Nuclear Information System (INIS)

    As part of the BIOPAN-0 test flight payload, ESA/ESTEC together with University of Siegen, designed an experiment called CARD, for flight on the first BIOPAN model. The CARD experiment, consisting of commercially available 128K-bit EEPROM cards and CR-39 plastic nuclear track detector foils, was flown in order to assess the EEPROMs sensitivity to cosmic rays and the CR-39 foils to measure the cosmic rays seen during the mission. The EEPROMs were unbiased during the flight so only the charged content of the memories could be assessed after returning to earth. This paper presents the results from a 15.6 day flight on-board the Russian Photon-8 satellite, launched October the 8th 1992 (altitude 300 km, inclination 62.8 degree), and gives details of the ground testing and analyses performed

  11. Experiments in statistical mechanics

    Science.gov (United States)

    Prentis, Jeffrey J.

    2000-12-01

    We present experiments designed to illustrate the basic concepts of statistical mechanics using a gas of "motorized molecules." Two molecular motion machines are constructed. The pressure fluctuation machine (mechanical interaction simulator) is a working model of two gases separated by a movable piston. The Boltzmann machine (canonical simulator) is a working model of a two-level quantum system in a temperature bath. Dynamical probabilities (fraction of time) are measured using mechanical devices, such as stop watches and motion sensors. Statistical probabilities (fraction of states) are calculated using physical statistics, such as microcanonical and canonical statistics. The experiments enable one to quantitatively test the fundamental principles of statistical mechanics, including the fundamental postulate, the ergodic hypothesis, and the statistics of Boltzmann.

  12. PHOBOS experiment at RHIC

    International Nuclear Information System (INIS)

    Full text: In July 2001, the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National laboratory delivered the first collision between Au nuclei at the highest center of mass energies achieved in a laboratory to date. PHOBOS is one of the four experiments installed during this phase of RHIC running. This talk will describe the PHOBOS experiment, and discuss some of the physics measurements. In particular the details of the measurement of the pseudo rapidity densities of primary charged particles near mid rapidity in central Au + Au collisions at ?SNN = 56 and 130 and 200 A GeV will be presented. The observed densities are higher than those previously observed in any collisions, also the rate of increase between the three energies is larger than that for nucleon nucleon collisions at comparable beam energies. (Author)

  13. Experimenting with Open Data

    OpenAIRE

    O?ztu?rk, Aybu?ke

    2013-01-01

    Public (open) data are now provided by many governments and organizations. Access to them can be made through central repositories or applications such as Google public data. 1 On the other hand, usage is still very much human oriented; there is no global data download, the data need to be selected and prepared manually, and need to be decided data formatting. Experimenting with open data project aim is to design and to evaluate a research prototype for crawling open data repository and colle...

  14. Experiment design and analysis

    International Nuclear Information System (INIS)

    This book mentions experiment design and analysis with outline of them, basic statistical inference, complete randomized design, block design of randomization, design of latin square form, basic conception of factorial design, sum of squares, the degree of freedom and expected mean square, split-plot design regression analysis, analysis of covariance and response-surface design. It gives descriptions of each chapter such as summary, model and applications of analysis.

  15. The PAMELA Space Experiment

    OpenAIRE

    Mocchiutti, E.; Adriani, O.; Barbarino, G. C.; Bazilevskaya, G. A.; Bellotti, R.; Boezio, M.; Bogomolov, E. A.; Bonechi, L.; Bongi, M.; Bonvicini, V.; Borisov, S.; Bottai, S.; Bruno, A.; Cafagna, F.; Campana, D.

    2009-01-01

    The 15th of June 2006, the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The apparatus comprises a time-of-flight system, a silicon-microstrip magnetic spectrometer, a silicon-tungsten electromagnetic calorimeter, an anticoincidence system, a shower tail counter scintillator and a neutron detector. The combination of these devices allows precision studies of the charged cosmic radiation to be cond...

  16. Designing copresent cycling experience

    OpenAIRE

    Cheng, Yun-maw; Chen, Wei-ju; Wu, Tong-ying; Sandnes, Frode Eika; Johnson, Chris; Yang, Chao-yang

    2013-01-01

    There has been much UbiComp research into motivating people to live more active and healthy lifestyle with sports. The idea behind these approaches is centered on social and peer effects in enhancing exercise adherence. While research of this kind has been prolific, there has very little work been done to identify factors that embody comfortable and informed accompanied exercise experience. This paper takes an increasingly attractive cycling theme as a testbed and proposes an unobtrusive and ...

  17. STELLA Experiment - Microbunch Diagnostic

    International Nuclear Information System (INIS)

    A microbunch diagnostic system is built at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory for monitoring microbunches (10-fs bunch length) produced by the Inverse Free Electron Laser accelerator in Staged Electron Laser Acceleration experiment. It is similar to one already demonstrated at the ATF. With greatly improved beam optics conditions higher order harmonic coherent transition radiation will be measurable to determine the microbunch length and shape

  18. Air Gun Experiment

    Science.gov (United States)

    NASA

    This video shows an impact experiment of a high-speed impact into a frozen comet-like material (dust, ice, window cleaner and Worcestershire sauce) over a highly porous target (garden perlite). The impact makes a small hole in the comet, simulating a strength-controlled crater, but a large crater grows below and peals back the surface crust like petals of a flower. The result is similar to a deeply buried explosion.

  19. Fugen operating experience, 4

    International Nuclear Information System (INIS)

    Heavy water chemistry control method is established after a number of R and D works against degradation of purification resins with deuterium peroxide generated from heavy water radiolysis. Heavy water is upgraded with two types of upgraders (electrolysis method and H2/H2O isotope exchange method) constructed in the power plant site. Experiences of the chemistry control and upgraders of heavy water are described. (author)

  20. IRTube: Infrared Imaging Experiments

    Science.gov (United States)

    The Concord Consortium

    This website is a collection of easy-to-do experiments which use an affordable handheld IR camera (under $900) to visualize invisible energy flows and transformations. Using this "desktop remote sensing" approach, thermal energy can be readily "seen." Other types of energy that convert into thermal energy can be inferred from thermal signals. Hence, many invisible physical, chemical, and biological processes that absorb or release heat can be visualized, discovered, and investigated.

  1. Red and Black Experiment

    Science.gov (United States)

    Kyle Siegrist

    This resource consists of a Java applet and expository text. The applet simulates the red and black experiment in which a player bets on a sequence of Bernoulli trials until a target fortune is reached or the player is ruined. The initial fortune, target fortune, and trial win probability can be varied, and the user can select either of two basic strategies: timid play or bold play.

  2. The GENIE nulling experiment

    OpenAIRE

    Absil, Olivier; Gondoin, Ph; Den Hartog, R.; Erd, C.; Fridlund, M.; Rando, N.

    2002-01-01

    Within the frame of the Darwin program, the European Space Agency and the European Southern Observatory (ESO) intend to build a ground-based technology demonstrator called Darwin-GENIE, using the Very Large Telescope Interferometer (VLTI). The main objective of GENIE is to gain experience in the manufacture and operation of a nulling interferometer representative of the ESA IRSI-Darwin space mission. GENIE will prepare the Darwin science programme through a systematic search for exo-zodiacal ...

  3. The CODALEMA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Ravel, O., E-mail: ravel@subatech.in2p3.fr [SUBATECH, Universite de Nantes/Ecole des Mines de Nantes/IN2P3-CNRS, Nantes (France)

    2012-01-11

    After a brief historical presentation of the CODALEMA setup at the Nancay radio observatory, the performances and some of the main scientific results obtained will be presented: the radio detection efficiency, some evidences for a geomagnetic origin of the air shower electric field in the East-West and North-South polarizations and a preliminary energy calibration. Finally, the future upgrade of the experiment is mentioned.

  4. Stress and Strain Experiment

    Science.gov (United States)

    The Materials Science and Technology Teacher's Workshop (MAST) provides this experiment as an introduction to stress and strain. The lesson allows students the opportunity to "design and make a concrete cylinder and beam that can withstand the greatest applied load." The concepts of comprehensive and tensile stress are incorporated into the lesson plan. Links to useful video clips, diagrams and discussion questions are included. The exercise should take about 90 minutes of class time.

  5. The COMPASS experiment

    CERN Multimedia

    2006-01-01

    Artistic view of the 60 m long Common Muon and Proton Apparatus for Structure and Spectroscopy (COMPASS) experiment. COMPASS takes beams from the SPS accelerator at CERN. This beam enters from the lower left and passes through the cylindrical target solenoid. COMPASS is used to study the internal structure of hadrons (composite particles interacting via the strong force) by looking at a property called spin and a phenomenon known as glueballs.

  6. Apollo lunar sounder experiment

    Science.gov (United States)

    Phillips, R.J.; Adams, G.F.; Brown, W.E., Jr.; Eggleton, R.E.; Jackson, P.; Jordan, R.; Linlor, W.I.; Peeples, W.J.; Porcello, L.J.; Ryu, J.; Schaber, G.; Sill, W.R.; Thompson, T.W.; Ward, S.H.; Zelenka, J.S.

    1973-01-01

    The scientific objectives of the Apollo lunar sounder experiment (ALSE) are (1) mapping of subsurface electrical conductivity structure to infer geological structure, (2) surface profiling to determine lunar topographic variations, (3) surface imaging, and (4) measuring galactic electromagnetic radiation in the lunar environment. The ALSE was a three-frequency, wide-band, coherent radar system operated from lunar orbit during the Apollo 17 mission.

  7. Phenix - The experience feedback

    International Nuclear Information System (INIS)

    The Phenix reactor holds a special place among French nuclear power plants. As a sodium-cooled fast neutron reactor it was quite unique. Built in 1968, by an integrated CEA/EDF/GAAA team, it would go critical in 1973 and be co-operated with EDF (80% CEA-20% EDF) from 1974 to 2009. During the thirty-five year life span, it would play its dual role as electricity generator (250 MWe) and experimental research reactor. Thus, it gathered considerable experience for fast breeder reactor systems: demonstration of design and operation, breeder potential, transmutation possibilities, development of all technical fields involved and validation of the technology used. This book attempts to summarise the wealth of scientifically exciting experience feedback, from these thirty-five years, for future fourth-generation reactors. Contents: 1 - General presentation of the reactor; 2 - Objectives; 3 - Operation review; 4 - Safety review; 5 - Removal of residual power; 6 - Core physics; 7 - Fuel element; 8 - Intermediate heat exchangers; 9 - Steam generators; 10 - Sodium pumps; 11 - Control rods; 12 - Experimental irradiation and in-cell examinations; 13 - Demonstration of transmutation Possibilities; 14 - Results of tests on the reactor; 15 - Final tests; 16 - Materials; 17 - In-service inspection; 18 - Washing, decontamination and repair; 19 - Handling; 20 - Sodium leaks; 21 - Sodium chemistry; 22 Sodium technology; 23 - A positive environmental Report; 24 - Negative reactivity trips; 25 - Reprocessing and multi-recycling; 26 - Co-generation experiment at Phenix; 27 - Phenix's contribution to Superphenix; 28 - Conclusion; Appendix: Experience feedback on the operation of fast reactors around the world

  8. Dichotic Listening Experiment

    Science.gov (United States)

    This is the entry page for the dichotic listening experiment. Each person responds to a series of trials and the analysis is conducted to compare how well an individual can distinguish sounds based on whether they received the information to the left or right ear. The independent variable is sound presentation (right or left ear) and the dependent variable is ability to correctly distinguish the sound.

  9. Pitch Memory Experiment

    Science.gov (United States)

    This is the entry page for the Pitch Memory Experiment. The pitch memory task is patterned after Deutsch (1979). On each trial, a target tone and a test tone are presented with five distracter tones between them. Participants will be asked to judge whether the target and test tones are the same or different. There are 38 trials when the tones are the same and 38 when they are different.

  10. The Vinca dosimetry experiment

    International Nuclear Information System (INIS)

    On 15 October 1958 there occurred a very brief uncontrolled run of the zero-power reactor at the Boris Kidric Institute of Nuclear Science, Vinca, near Belgrade, Yugoslavia. During this run six persons received various doses of radiation. They were subsequently given medical treatment of a novel kind at the Curie Hospital, Paris. In atomic energy operations to date, very few accidents involving excessive radiation exposure to human beings have occurred. In fact, the cases of acute radiation injury are limited to about 30 known high exposures, few of which were in the lethal or near-lethal range. Since direct experiment to determine the effects of ionizing radiation on man is unacceptable, information on these effects has to be based on a consideration of data relating to accidental exposures, viewed in the light of the much more extensive data obtained from experiments on animals. Therefore, any direct information on the effects of radiation on humans is very valuable. The international dosimetry project described in this report was carried out at Vinca, Yugoslavia, under the auspices of the International Atomic Energy Agency to determine the precise amount of radiation to which the persons had been exposed during the accident. These dosimetry data, together with the record of the carefully observed clinical effects, are of importance both for the scientific study of radiation effects on man and for the development of methods of therapy. The experiment and measurements were carried out at the end of April 1960. The project formed part of the Agency's research programme in the field of health and safety. The results of the experiment are made available through this report to all Member States

  11. Review of EDM experiments

    Science.gov (United States)

    Semertzidis, Yannis K.

    2011-12-01

    The current limits on physics beyond the SM come in large part from the non-observation of EDMs in the sensitive electric dipole moment experiments, like the neutron, 199Hg, and 205Tl. New systems with enhanced EDM sensitivity are coming online and promise a resolution of the baryon asymmetry of our universe (if an EDM is observed) or a severe constraint on physics beyond the SM by the end of the current decade.

  12. Experiments in space: Summary

    International Nuclear Information System (INIS)

    The study of cosmic and gamma-rays has a long history and was at the beginning of what we now call Particle Physics. During the last years a growing number of particle physicists is turning again to Cosmic rays bringing all the latest techniques developed at the big accelerator experiments and making CR physics again one of the most stimulating and active field in the study of fundamental physics as the presentations during this conference demonstrate

  13. Mirror Drawing Experiment

    Science.gov (United States)

    Maureen McCarthy

    2006-01-18

    This is the entry page for participation in the Mirror Drawing Experiment. This study is designed to demonstrate that for right-handed people, who comprise over 90% of the population, the right hemisphere performs visual spatial tasks better than the left hemisphere. For most right-handers, whereas the left hemisphere excels in verbal and analytical tasks, the right hemisphere specializes in emotional, nonverbal, and visual-spatial tasks.

  14. The ACE experiment

    CERN Multimedia

    Maximilien Brice

    2006-01-01

    The Antiproton Cell Experiment (ACE) as shown by Michael Holzscheiter (spokesperson), Niels Bassler (co-spokesperson) and Helge Knudsen. ACE is located on the Antiproton Decelerator (AD) at CERN. An antiproton annihilates a proton in the nucleus of a cancer cell, producing a pair of gamma rays, destroying the entire cell and some surrounding cells. Many fewer antiprotons are required in this treatment than in the equivalent proton hadron therapy, so there is less risk of healthy tissue damage.

  15. "We work on experiments"

    CERN Multimedia

    BBC

    1975-01-01

    Short BBC (?) report on CERN. Emphasis on international collaboration, with Soviets and Chinese highlighted. At end, interview with Danish physicist (our of sync) who talks about working on Sundays and how experiments have 25 people, therefore it is a long way to glory. ISR. Comments: Film scratched and dirty. Colour pink. Looses sync at the end. Video transfer ends before the end of the film.

  16. Delivering ideal employee experiences.

    Science.gov (United States)

    Weiss, Marjorie D; Tyink, Steve; Kubiak, Curt

    2009-05-01

    Employee-centric strategies have moved from employee satisfaction and brand awareness to employee "affinity" or "attachment." In today's marketplace, occupational health nurses understand that differentiation (i.e., the perception of uniqueness) is the direct result of superior employee interactions, which lead to better employee care, enduring employee relationships, loyal employees, and satisfied employers. What drives employees to occupational health nurse attachment? The answer is a passion for rising above the competition to create ideal employee experiences. PMID:19492760

  17. Summary on experiments

    International Nuclear Information System (INIS)

    Experimental studies of the atomic structures of both simple and complex atoms and ions provide crucial tests of atomic structure theory and of calculational techniques for a wide range of atomic systems. This summary is restricted to a brief discussion of some recent and current experiments in few-electron and many-electron atoms and ions which represent exciting challenges to sophisticated atomic structure calculations, discussed elsewhere. In particular the emphasis is on high-Z systems

  18. Zipiko User Experience

    OpenAIRE

    Attardi, Stefano

    2009-01-01

    Zipiko is a mobile-enabled web service designed to facilitate sharing social plans with friends and organize spontaneous get-togethers. It was develloped between March and December 2008, initially as a collaboration between Media Lab Helsinki students, later as the main project at Helsinki startup Zipipop. I will analyze in detail the processes, techniques and challenges related to designing user experiences for the web in general and the mobile web in particular. I will describe how vari...

  19. DIRAC experiment at CERN

    Directory of Open Access Journals (Sweden)

    Benelli Angela

    2012-12-01

    Full Text Available The precise measurements of ?+?- and ?K atom lifetime allow to check the predictions of Chiral Perturbation Theory for the pion-pion s-wave scattering lengths with isospin 0 and 2 and for the pion-kaon scattering lengths with isospin 1/2 and 3/2. The DIRAC experiment with the latest results is presented together with the proposal for future investigations.

  20. Digital Heritage Experiences

    DEFF Research Database (Denmark)

    Munar, Ana Maria; Ooi, Can-Seng

    The evolution of the Web and the expansion of social media are transforming our heritage experiences. Social media offer an innovative element to personal travel reflections by providing digital global platforms on which tourists can create and publish their travel stories. Social media transform the traditional creative processes, distribution mechanisms and consumption patterns of these experiences. This study provides insight on how personal heritage moments are constructed, digitalized and shared. The methodological perspective adopted draws on a constructivist epistemology (Markham 2004) and netnography (Kozinets, 2002). The social media platform analysed is TripAdvisor, which is the largest networking site focusing on tourism and travel. Study findings indicate that while heritage sites tend to promote their uniqueness and the cultural value of their products, tourists are just as concerned about sensory impressions, imagination, practical issues and personal comfort in the immediate moment as they are about historical and cultural details. Social media provide the technological tools and platforms to communicate and share tourism imaginations, feelings and practical tips. The analysis discusses virtual tourism culture and also generic tourist interests characterized by sensuality, cultural jointaffirmation and immediacy of the experience.

  1. Copenhagen Sonic Experience Map

    DEFF Research Database (Denmark)

    Kreutzfeldt, Jacob

    2011-01-01

    In the wake of present European interest for mapping urban noise, it seems increasingly relevant to investigate the multiple ways in which sound intersects with the everyday experiences of urban citizens. Focusing on the polluting effects of infrastructural noise, the EU-initiated project of assessment and management of environmental noise brings forth the disturbing and potentially damaging effect of environmental sound.1 But as maps of coloured streets start to circulate, and real estate prices drop in designated blue and red areas,2 it is worth remembering that sound itself is not a killer. Most of the time sound is a trivial part of everyday life involved in interactions, experiences, atmospheres, actions, etc. Although trivial, the role of the aural in the urban life world is more complex than what is suggested by sound level maps, and as such it may be a vital part of urbanity itself. The challenge for planners, designers, and architects is to deal with the auditory not only as pollution but also as an integrated part of urban experience, promoting fellowship and liveliness as well as distress.

  2. Critical experiment data archiving

    International Nuclear Information System (INIS)

    Critical experiment facilities produced a large number of important data during the past 45 years; however, many useful data remain unpublished. The unpublished material exists in the form of experimenters' logbooks, notes, photographs, material descriptions, etc., This data could be important for computer code validation, understanding the physics of criticality, facility design, or for setting process limits. In the past, criticality specialists have been able to obtain unpublished details by direct contact with the experimenters. Obviously, this will not be possible indefinitely. Most of the US critical experiment facilities are now closed, and the experimenters are moving to other jobs, retiring, or otherwise becoming unavailable for this informal assistance. Also, the records are in danger of being discarded or lost during facility closures, cleanup activities, or in storage. A project was begun in 1989 to ensure that important unpublished data from critical experiment facilities in the United States are archived and made available as a resource of the US Department of Energy's (DOE's) Nuclear Criticality Information System (NCIS). The objective of this paper is to summarize the project accomplishments to date and bring these activities to the attention of those who might be aware of the location of source information needed for archiving and could assist in getting the materials included in the archive

  3. The OLYMPUS Experiment

    CERN Document Server

    Milner, R; Kohl, M; Schneekloth, U; Akopov, N; Alarcon, R; Andreev, V A; Ates, O; Avetisyan, A; Bayadilov, D; Beck, R; Belostotski, S; Bernauer, J C; Bessuille, J; Brinker, F; Buck, B; Calarco, J R; Carassiti, V; Cisbani, E; Ciullo, G; Contalbrigo, M; D'Ascenzo, N; De Leo, R; Diefenbach, J; Donnelly, T W; Dow, K; Elbakian, G; Eversheim, D; Frullani, S; Funke, Ch; Gavrilov, G; Gläser, B; Görrissen, N; Hauschildt, J; Henderson, B S; Hoffmeister, Ph; Holler, Y; Ice, L D; Izotov, A; Kaiser, R; Karyan, G; Kelsey, J; Khaneft, D; Klassen, P; Kiselev, A; Krivshich, A; Lehmann, I; Lenisa, P; Lenz, D; Lumsden, S; Ma, Y; Maas, F; Marukyan, H; Miklukho, O; Movsisyan, A; Murray, M; Naryshkin, Y; O'Connor, C; Benito, R Perez; Perrino, R; Redwine, R P; Piñeiro, D Rodríguez; Rosner, G; Russell, R L; Schmidt, A; Seitz, B; Statera, M; Thiel, A; Vardanyan, H; Veretennikov, D; Vidal, C; Winnebeck, A; Yeganov, V

    2014-01-01

    The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, $\\mu_p G^p_E/G^p_M$, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01~GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately $25^\\circ$--$75^\\circ$. Symmetric M{\\o}ller/Bhabha calorimeters at $1.29^\\circ$ and telescopes of GEM and MWPC detectors at $12^\\circ$ served as luminosity monitors. A total luminosity of approximately 4.5~fb$^{-1}$ was collect...

  4. Relay mirror experiment

    Science.gov (United States)

    Begley, David L.

    1996-04-01

    Originating out of a SDIO-funded, Phase 1 study effort, two ground systems and an orbiting EO payload/spacecraft were the primary equipment for the RME. The RME was originally conceived to be a shuttle deployed experiment. Shortly after program start, the Challenger disaster occurred, with the promise of extensive delays. A completely new space segment was to be designed incorporating a free-flying spacecraft. During the midphase of the program, a variety of launch vehicles were envisioned to replace the shuttle, requiring the BASD team to design accommodations for Delta, Atlas, and Titan, with a Delta launch being the final solution. The ground systems tracked the spacecraft and illuminated it with green and blue beacon lasers. The Payload Experiment Package (PEP) housed the bisection tracker, a key innovation central to the experiment. The bisection tracker acquired both beacons and controlled steerable mirrors to accomplish fine tracking of the two cooperative beacons. In the process, the relay mirror was precisely positioned to enable a successful relay of a third infrared laser between the two ground sites via the orbiting spacecraft. Many of the key technologies employed in the PEP were originally developed for Ball laser communications research and development programs and other laser pointing efforts. The WAVE sensor package, built by ATA and integrated by Ball, measured the vibrations of the optical base structure on which it was mounted. These spacecraft vibration data are critical to the accurate pointing of space laser communication terminals.

  5. The Kauai Experiment

    Science.gov (United States)

    Porter, Michael B.; Hursky, Paul; Siderius, Martin; Badiey, Mohsen; Caruthers, Jerald; Hodgkiss, William S.; Raghukumar, Kaustubha; Rouseff, Daniel; Fox, Warren; de Moustier, Christian; Calder, Brian; Kraft, Barbara J.; McDonald, Keyko; Stein, Peter; Lewis, James K.; Rajan, Subramaniam

    2004-11-01

    The Kauai Experiment was conducted from June 24 to July 9, 2003 to provide a comprehensive study of acoustic propagation in the 8-50 kHz band for diverse applications. Particular sub-projects were incorporated in the overall experiment 1) to study the basic propagation physics of forward-scattered high-frequency (HF) signals including time/angle variability, 2) to relate environmental conditions to underwater acoustic modem performance including a variety of modulation schemes such as MFSK, DSSS, QAM, passive-phase conjugation, 3) to demonstrate HF acoustic tomography using Pacific Missile Range Facility assets and show the value of assimilating tomographic data in an ocean circulation model, and 4) to examine the possibility of improving multibeam accuracy using tomographic data. To achieve these goals, extensive environmental and acoustic measurements were made yielding over 2 terabytes of data showing both the short scale (seconds) and long scale (diurnal) variations. Interestingly, the area turned out to be extremely active with a large mixed layer overlying a very dynamic lower channel. This talk will present an overview of the experiment and preliminary results.

  6. The epithermal critical experiments

    International Nuclear Information System (INIS)

    The epithermal critical experiments. The present phase of the advanced-epithermal-thorium-reactor programme consists of integral-reactor-physic s experiments designed to provide neutron-cross-section information in the 10-MeV to 1-keV range. A series of nine, multi-region, slow-fast, pseudospherica l critical assemblies of the honey- comb, split-table type are being studied. So far, three assemblies have' been run. The outer driver-decouple r region drives an interior U233-Th fuelled spherical test region whose neutron-flux spectrum is successively degraded by increasing the graphite moderator to fuel ratio. A square-wave oscillator experiment defines the central reactivity worths of forty small samples of different materials to 10-8 ?k for each assembly. Additionally, intercalibrated artificial neutron sources are oscillated to determine the various central neutron importance functions. The spectra are obtained by fission-counter measurements with calibrated foils of different thresholds and by a Li6-solid-state- counter sandwich spectrometer. A digital computer routine will be used to compile all measurements into a self-consistent library of spectrum averaged cross-sections. (author)

  7. Hyperon Beam Experiment

    CERN Multimedia

    2002-01-01

    The experiment WA89 uses the upgraded Omega facility together with a hyperon beam installed at the end of the H1 beamline. The beam can deliver 2~10$ ^{5} \\% Sigma ^- $ per machine burst at 330 GeV/c with a background of 5 10$ ^{5} \\% \\pi ^- $. \\\\ \\\\ The goals of the experiment are: observation of charmed particles, mainly the charmed-strange baryons and measurements of their production in the kinematical range x$ _{F} $~$>$~0.2, and their decay properties, a search for exotic states such as U(3100) observed in the previous CERN hyperon beam experiment WA62, measurements of hyperon polarization and production properties. \\\\ \\\\ A vertex detector consisting of 24 silicon microstrip planes with 25~$\\mu$m pitch and 6~planes with 50~$\\mu$m pitch provides track measurements of sufficient accuracy to identify the decays of short living charmed particles and measure their lifetimes. A RICH detector provides good $\\pi$/K separation for momenta up to 100~GeV/c and $\\pi$/p separation up to 150~GeV/c. Photons are detecte...

  8. Combined array experiment design

    International Nuclear Information System (INIS)

    Experiment plans formed by combining two or more designs, such as orthogonal arrays primarily with 2- and 3-level factors, creating multi-level arrays with subsets of different strength are proposed for computer experiments to conduct sensitivity analysis. Specific illustrations are designs for 5-level factors with fewer runs than generally required for 5-level orthogonal arrays of strength 2 or more. At least 5 levels for each input are desired to allow for runs at a nominal value, 2-values either side of nominal but within a normal, anticipated range, and two, more extreme values either side of nominal. This number of levels allows for a broader range of input combinations to test the input combinations where a simulation code operates. Five-level factors also allow the possibility of up to fourth-order polynomial models for fitting simulation results, at least in one dimension. By having subsets of runs with more than strength 2, interaction effects may also be considered. The resulting designs have a 'checker-board' pattern in lower-dimensional projections, in contrast to grid projection that occurs with orthogonal arrays. Space-filling properties are also considered as a basis for experiment design assessment

  9. Shared Experience: Art & War

    Science.gov (United States)

    2006-01-01

    The use of artistic expression to convey the experience of war and the battlefield has been around since antiquity, and has given rise to glorious poetry, epic stories, and more recently, paintings. This online exhibit created by the people at the Australian War Memorial presents the experiences of Australians, Britons, and Canadians in the Second World War through paintings created during this turbulent period. As the homepage suggests, "The men and women that feature in these works are shown waiting, preparing, fighting, suffering, celebrating". First-time visitors will want to start by reading the introductory essay by Roger Tolson titled "A Shared Experience". After doing so, they should feel free to browse around the paintings offered here, all of which are grouped into thematic categories that include "Casualties", "Work", and "Battle". There are a number of rather haunting and evocative paintings scattered across these categories, but visitors should be sure to take a look at the work "Battlefield burial of three NCOs" by Ivor Hele and "Airmen In A Village Pub Yorkshire" by Miller Brittain. The site is rounded by brief biographies for each of the artists whose work is included on the site.

  10. Experiments at the LHC

    CERN Document Server

    Giubellino, P

    2003-01-01

    The Large Hadron Collider, now under construction at the European Center for Nuclear Research, represents a unique opportunity for Heavy-Ion Physics. It will provide nuclear collisions at a center-of- mass energy 30 times higher then the present Relativistic Heavy Ion Collider, opening a new era for this field, in which particle production will be dominated by hard processes, and the energy densities will possibly be high enough to treat the generated quark- gluon plasma as an ideal gas. While RHIC is providing a wealth of interesting data, many physicists are working hard to prepare the experiments which will run at the LHC. ALICE, A Large Ion Collider Experiment, the dedicated detector designed to study nucleus-nucleus collisions at the LHC, is developing rapidly: the R&D is essentially complete, and large parts of the main detectors are in production. CMS, Compact Muon Solenoid, an experiments designed for p-p collisions, has defined a Heavy-Ion program, which will expand the LHC nuclear physics reach ...

  11. AGS experiments: 1990, 1991, 1992

    International Nuclear Information System (INIS)

    This report contains a description of the following: AGS Experimental Area - High Energy Physics FY 1993 and Heavy Ion Physics FY 1993; Table of Beam Parameters and Fluxes; Experiment Schedule ''as run''; Proposed 1993 Schedule; A listing of experiments by number; Two-page summaries of each experiment begin here, also ordered by number; Publications of AGS Experiments; and List of AGS Experimenters

  12. AGS Experiments: 1989, 1990, 1991

    International Nuclear Information System (INIS)

    This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule ''as run''; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here

  13. AGS experiments - 1982, 1983, 1984

    International Nuclear Information System (INIS)

    The report contains layouts of experimental areas, a table of beam parameters and fluxes, the experiment schedule as run, the experiment long range schedule, a listing of experiments by number, and a section of two-page summaries of each experiment

  14. AGS Experiments: 1989, 1990, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1992-02-01

    This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule ``as run``; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

  15. AGS Experiments: 1989, 1990, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1992-02-01

    This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

  16. Simulation - modeling - experiment

    International Nuclear Information System (INIS)

    After two workshops held in 2001 on the same topics, and in order to make a status of the advances in the domain of simulation and measurements, the main goals proposed for this workshop are: the presentation of the state-of-the-art of tools, methods and experiments in the domains of interest of the Gedepeon research group, the exchange of information about the possibilities of use of computer codes and facilities, about the understanding of physical and chemical phenomena, and about development and experiment needs. This document gathers 18 presentations (slides) among the 19 given at this workshop and dealing with: the deterministic and stochastic codes in reactor physics (Rimpault G.); MURE: an evolution code coupled with MCNP (Meplan O.); neutronic calculation of future reactors at EdF (Lecarpentier D.); advance status of the MCNP/TRIO-U neutronic/thermal-hydraulics coupling (Nuttin A.); the FLICA4/TRIPOLI4 thermal-hydraulics/neutronics coupling (Aniel S.); methods of disturbances and sensitivity analysis of nuclear data in reactor physics, application to VENUS-2 experimental reactor (Bidaud A.); modeling for the reliability improvement of an ADS accelerator (Biarotte J.L.); residual gas compensation of the space charge of intense beams (Ben Ismail A.); experimental determination and numerical modeling of phase equilibrium diagrams of interest in nuclear applications (Gachon J.C.); modeling of irradiation effects (Barbu A.); elastic limit and irradiation damage in Fe-Cr alloys: simulation and experiment (Pontikis V.); experimental measurements of spallation residues, comparison with Monte-Carlo simulation codes (Fallot M.); the spallation target-reactor coupling (Rimpault G.); tools and data (Grouiller J.P.); models in high energy transport codes: status and perspective (Leray S.); other ways of investigation for spallation (Audoin L.); neutrons and light particles production at intermediate energies (20-200 MeV) with iron, lead and uranium targets (Le Colley F.R.); nuclear data for transmutation (Noguere G.). (J.S.)

  17. 2169 steel waveform experiments.

    Energy Technology Data Exchange (ETDEWEB)

    Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd; Brown, Justin L.

    2012-11-01

    In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe - phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mm-thick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A configuration used for the last three shots allows release information to be determined from these free surface samples. The sample strength appears to increase with stress from ~1 GPa to ~ 3 GPa over this range, consistent with other recent work but about 40% above the Steinberg model.

  18. Experience the Moon

    Science.gov (United States)

    Ortiz-Gil, A.; Benacchio, L.; Boccato, C.

    2011-10-01

    The Moon is, together with the Sun, the very first astronomical object that we experience in our life. As this is an exclusively visual experience, people with visual impairments need a different mode to experience it too. This statement is especially true when events, such as more and more frequent public observations of sky, take place. This is the reason why we are preparing a special package for visual impaired people containing three brand new items: 1. a tactile 3D Moon sphere in Braille with its paper key in Braille. To produce it we used imaging data obtained by NASA's mission Clementine, along with free image processing and 3D rendering software. In order to build the 3D small scale model funding by Europlanet and the Italian Ministry for Research have been used. 2. a multilingual web site for visually impaired users of all ages, on basic astronomy together with an indepth box about the Moon; 3. a book in Braille with the same content of the Web site mentioned above. All the items will be developed with the collaboration of visually impaired people that will check each step of the project and support their comments and criticism to improve it. We are going to test this package during the next International Observe the Moon Night event. After a first testing phase we'll collect all the feedback data in order to give an effective form to the package. Finally the Moon package could be delivered to all those who will demand it for outreach or educational goals.

  19. RESULTS FROM LHCF EXPERIMENT

    Directory of Open Access Journals (Sweden)

    Alessia Tricomi

    2013-12-01

    Full Text Available The LHCf experiment has taken data in 2009 and 2010 p–p collisions at LHC at ?s = 0.9TeV and ?s = 7TeV. In this paper the most up-to-date results on the inclusive photon spectra and the ?0 spectra measured by LHCf are reported. Comparison of these spectra with the model expectations and the impact on high energy cosmic ray (HECR Physics are iscussed. In addition, perspectives for future analyses as well as the program for the next data taking period, in particular the foreseen data taking in p–Pb collisions, will be discussed.

  20. Progress on STELLA Experiment

    International Nuclear Information System (INIS)

    Progress is reported on the Staged Electron Laser Acceleration (STELLA) experiment, which has been assembled on the BNL Accelerator Test Facility (ATF). The primary goal of STELLA is to demonstrate staging of the laser acceleration process by using the BNL inverse free electron laser (IFEL) as a prebuncher, which generates ?1-(micro)m long microbunches, and accelerating these microbunches using an inverse Cerenkov acceleration (ICA) stage. Experimental runs are underway to recommission the IFEL and ICA systems separately, and reestablish the microbunching process. Staging will then be examined by running both the IFEL depicted in Fig. 1

  1. Solar neutrino experiments

    International Nuclear Information System (INIS)

    The present status of experimental solar neutrino research is reviewed. Updated results from the Homestake, Kamiokande, GALLEX and SAGE detectors all show a deficit when compared to recent standard solar model calculations. Two of these detectors, GALLEX and SAGE, have recently been checked with artificial 51Cr neutrino sources. It is shown that astrophysical scenarios to solve the solar neutrino problems are not favoured by the data. There is hope that the results of forthcoming solar neutrino experiments can provide the answers to the open questions. (author) 6 figs., 3 tabs., 36 refs

  2. The Baikal neutrino experiment

    International Nuclear Information System (INIS)

    We review the status of the Lake Baikal Neutrino Experiment. Preparation towards a km3-scale Gigaton Volume Detector (GVD) in Lake Baikal is currently a central activity. As an important milestone, a km3-prototype string comprising of 12 optical modules and based on a completely new technology, has been installed and was put in operation together with NT200+ in April, 2009. We also present recent results from the long-term operation of NT200, including an improved limit on the diffuse astrophysical neutrino flux.

  3. Soil mechanics experiment

    Science.gov (United States)

    Mitchell, J. K.; Bromwell, L. G.; Carrier, W. D., III; Costes, N. C.; Houston, W. N.; Scott, R. F.

    1972-01-01

    The Apollo 15 soil-mechanics experiment has offered greater opportunity for study of the mechanical properties of the lunar soil than previous missions, not only because of the extended lunar-surface stay time and enhanced mobility provided by the lunar roving vehicle (rover), but also because four new data sources were available for the first time. These sources were: (1) the self-recording penetrometer (SRP), (2) new, larger diameter, thin-walled core tubes, (3) the rover, and (4) the Apollo lunar-surface drill (ALSD). These data sources have provided the best bases for quantitative analyses thus far available in the Apollo Program.

  4. Muller Lyer Experiment

    Science.gov (United States)

    This is the entry page for the Muller Lyer Experiment. The study contained in this collection is a variation of the original Müller-Lyer illusion, one which enables investigators to study the effect of changes in fin angle on the apparent length of lines. Participants in the study are presented with two lines, as in the standard Müller-Lyer presentation, but one of the lines has fins and one does not. The participant's task is to adjust the plain line (without fins) to make the lengths the same.

  5. Ontario Hydro decontamination experience

    International Nuclear Information System (INIS)

    Ontario Hydro currently operates 18 nuclear electric generating units of the CANDU design with a net capacity of 12,402 MW(e). An additional 1,762 MW(e) is under construction. The operation of these facilities has underlined the need to have decontamination capability both to reduce radiation fields, as well as to control and reduce contamination during component maintenance. This paper presents Ontario Hydro decontamination experience in two key areas - full heat transport decontamination to reduce system radiation fields, and component decontamination to reduce loose contamination particularly as practised in maintenance and decontamination centres. (author)

  6. Mössbauer Magnetic Scan experiments

    International Nuclear Information System (INIS)

    We report an application of the Mössbauer Effect designed to retrieve specific information on the magnetic response of iron-containing materials. It consists in the measurement of the nuclear absorption of gamma-rays as a function of an external magnetic field for a specific nuclear transition between magnetically-split nuclear levels. The experiments, here termed Mössbauer Magnetic Scan experiments, were carried out recording the absorption of 57Fe 14.4 keV gamma-ray in ?-Fe at constant Doppler energies coincident with some of the spectral lines of the magnetically split Mössbauer spectrum. Due to the dependence of the transition probabilities on the relative orientation between the nuclear magnetic moment and the gamma-ray direction, the present application results in a useful method to study the magnetic-field evolution of the distribution of atomic-magnetic-moment orientations. The proposed technique inherit from the Mössbauer Spectroscopy the chemical-element selectiveness as well as the ability to differentiate responses from iron atoms located at inequivalent site or at different phases. In this work, we show that the data analysis for these experiments depends on the sample thickness that the gamma-ray has to cross. For thin samples (i.e.samples with Mössbauer effective thicknesses lower than one) the magnetic-field dependence of the second-order-moment of the orientation distribution in the direction of the gamma ray is obtained. On the other hand, for thicker samples, although the data analysis is more complex, the dependences of the three second-order-moments of the orientation distribution are obtained. The experiments were performed on two ?-Fe foils of different Mössbauer effective thicknesses. They were chosen to represent the cases of thin and thick Mössbauer absorbers. The magnetic evolution of the orientations distribution is compared with results obtained from magnetometric measurements showing a good agreement as well indicating the complementarity of both techniques. A complete description of the experimental set up and the formalism for Mössbauer Magnetic Scan data analysis are presented

  7. Results of railgun experiments

    International Nuclear Information System (INIS)

    During the 1979 Megagauss II conference the hypervelocity potential of railguns and the pulsed power technology needed to power them were discussed. Since then, many laboratories have initiated railgun R and D projects for a variety of potential applications. Los Alamos and Lawrence Livermore National Laboratories initiated a collaborative experimental railgun project which resulted in several successes in accelerating projectiles to high velocities, emphasized the limits on railgun operation, and indicated that the numerical modeling of railgun operation was in good agreement with the experiments

  8. Solar neutrino experiments

    Energy Technology Data Exchange (ETDEWEB)

    Hampel, W. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)

    1996-11-01

    The present status of experimental solar neutrino research is reviewed. Updated results from the Homestake, Kamiokande, GALLEX and SAGE detectors all show a deficit when compared to recent standard solar model calculations. Two of these detectors, GALLEX and SAGE, have recently been checked with artificial {sup 51}Cr neutrino sources. It is shown that astrophysical scenarios to solve the solar neutrino problems are not favoured by the data. There is hope that the results of forthcoming solar neutrino experiments can provide the answers to the open questions. (author) 6 figs., 3 tabs., 36 refs.

  9. NASA: Autonomous Sciencecraft Experiment

    Science.gov (United States)

    NASA's Jet Propulsion Laboratory has undertaken the Autonomous Sciencecraft Experiment (ASE) to "demonstrate the potential for space missions to use onboard decision-making to detect, analyze, and respond to science events, and to downlink only the highest value science data." The website features ASE updates, publications, and a list of the potential impacts of this research. Users can discover the autonomy software components that are aboard the ASE flight. The site includes links to information about the Artificial Intelligence Group at the Jet Propulsion Laboratory and its other projects.

  10. Results from LHCf Experiment

    OpenAIRE

    Tricomi Alessia

    2012-01-01

    The LHCf experiment has taken data in 2009 and 2010 p-p collisions at LHC at $\\sqrt{s} = 0.9$ TeV and $\\sqrt{s} = 7$ TeV. The measurement of the forward neutral particle spectra produced in proton-proton collisions at LHC up to an energy of 14 TeV in the center of mass system are of fundamental importance to calibrate the Monte Carlo models widely used in the high energy cosmic ray (HECR) field, up to an equivalent laboratory energy of the order of $10^{17}$ eV. In this pape...

  11. The CUORE experiment

    International Nuclear Information System (INIS)

    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will be composed by one thousand TeO2 absorbers of 5x5x5 cm3 to be operated in the Gran Sasso Underground Laboratory. CUORICINO, a reduced version of CUORE, as been already approved and funded and will be in operation since the beginning of next year. A description of the CUORE setup, of the mechanical structure and of the single detector performances is shown. The physics goals of CUORE are illustrated

  12. Quantum frequency downconversion experiment

    CERN Document Server

    Takesue, Hiroki

    2010-01-01

    We report the first quantum frequency downconversion experiment. Using the difference frequency generation process in a periodically poled lithium niobate waveguide, we successfully observed the phase-preserved frequency downconversion of a coherent pulse train with an average photon number per pulse of $<$1, from the 0.7-$\\mu$m visible wavelength band to the 1.3-$\\mu$m telecom band. We expect this technology to become an important tool for flexible photonic quantum networking, including the realization of quantum repeater systems over optical fiber using atom-photon entanglement sources for the visible wavelength bands.

  13. Time to experiment

    Directory of Open Access Journals (Sweden)

    Gráinne Conole

    2002-12-01

    Full Text Available In the last edition of ALT-J, the editorial team decided to try an experiment by creating a more interactive and critical debate on a particular article with the journal. Readers were invited to submit comments on an article by Davis and Denning entitled: 'Almost as helpful as good theory: some conceptual possibilities for the online classroom' (Davis and Denning, 2000. Summarized below are some of the key comments raised about the paper. Many thanks to everyone who took the time to send in these comments; individual acknowledgements have not been included for reasons of confidentiality.

  14. Fundamental experiments in velocimetry

    Energy Technology Data Exchange (ETDEWEB)

    Briggs, Matthew Ellsworth [Los Alamos National Laboratory; Hull, Larry [Los Alamos National Laboratory; Shinas, Michael [Los Alamos National Laboratory

    2009-01-01

    One can understand what velocimetry does and does not measure by understanding a few fundamental experiments. Photon Doppler Velocimetry (PDV) is an interferometer that will produce fringe shifts when the length of one of the legs changes, so we might expect the fringes to change whenever the distance from the probe to the target changes. However, by making PDV measurements of tilted moving surfaces, we have shown that fringe shifts from diffuse surfaces are actually measured only from the changes caused by the component of velocity along the beam. This is an important simplification in the interpretation of PDV results, arising because surface roughness randomizes the scattered phases.

  15. Mössbauer Magnetic Scan experiments

    Energy Technology Data Exchange (ETDEWEB)

    Pasquevich, G.A., E-mail: gpasquev@fisica.unlp.edu.ar [Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, P.O. Box 67, 1900 La Plata (Argentina); Instituto de Física La Plata, CONICET, P.O. Box 67, 1900 La Plata (Argentina); Facultad de Ingeniería, Universidad Nacional de La Plata, P.O. Box 91, 1900 La Plata (Argentina); Mendoza Zélis, P. [Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, P.O. Box 67, 1900 La Plata (Argentina); Instituto de Física La Plata, CONICET, P.O. Box 67, 1900 La Plata (Argentina); Facultad de Ingeniería, Universidad Nacional de La Plata, P.O. Box 91, 1900 La Plata (Argentina); Lencina, A. [Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, P.O. Box 67, 1900 La Plata (Argentina); Centro de Investigaciones Ópticas (CONICET La Plata – CIC), P.O. Box 3, 1897 Gonnet (Argentina); Veiga, A. [Instituto de Física La Plata, CONICET, P.O. Box 67, 1900 La Plata (Argentina); Facultad de Ingeniería, Universidad Nacional de La Plata, P.O. Box 91, 1900 La Plata (Argentina); Fernández van Raap, M.B.; Sánchez, F.H. [Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, P.O. Box 67, 1900 La Plata (Argentina); Instituto de Física La Plata, CONICET, P.O. Box 67, 1900 La Plata (Argentina)

    2014-06-01

    We report an application of the Mössbauer Effect designed to retrieve specific information on the magnetic response of iron-containing materials. It consists in the measurement of the nuclear absorption of gamma-rays as a function of an external magnetic field for a specific nuclear transition between magnetically-split nuclear levels. The experiments, here termed Mössbauer Magnetic Scan experiments, were carried out recording the absorption of {sup 57}Fe 14.4 keV gamma-ray in ?-Fe at constant Doppler energies coincident with some of the spectral lines of the magnetically split Mössbauer spectrum. Due to the dependence of the transition probabilities on the relative orientation between the nuclear magnetic moment and the gamma-ray direction, the present application results in a useful method to study the magnetic-field evolution of the distribution of atomic-magnetic-moment orientations. The proposed technique inherit from the Mössbauer Spectroscopy the chemical-element selectiveness as well as the ability to differentiate responses from iron atoms located at inequivalent site or at different phases. In this work, we show that the data analysis for these experiments depends on the sample thickness that the gamma-ray has to cross. For thin samples (i.e.samples with Mössbauer effective thicknesses lower than one) the magnetic-field dependence of the second-order-moment of the orientation distribution in the direction of the gamma ray is obtained. On the other hand, for thicker samples, although the data analysis is more complex, the dependences of the three second-order-moments of the orientation distribution are obtained. The experiments were performed on two ?-Fe foils of different Mössbauer effective thicknesses. They were chosen to represent the cases of thin and thick Mössbauer absorbers. The magnetic evolution of the orientations distribution is compared with results obtained from magnetometric measurements showing a good agreement as well indicating the complementarity of both techniques. A complete description of the experimental set up and the formalism for Mössbauer Magnetic Scan data analysis are presented.

  16. Aesthetic experience of dance performances

    Directory of Open Access Journals (Sweden)

    Vukadinovi? Maja

    2012-01-01

    Full Text Available In this study the aesthetic experience of dance performances is investigated. The study includes construction of an instrument for measuring the aesthetic experience of dance performances and an investigation of the structure of both dancers’ and spectators’ aesthetic experience. The experiments are carried out during eight different performances of various dance forms, including classical ballet, contemporary dance, flamenco and folklore. Three factors of aesthetic experience of dance performances are identified: Dynamism, Exceptionality and Affective Evaluation. The results show that dancers’ aesthetic experience has a somewhat different factorial structure from that of the spectators’. Unlike spectators’ aesthetic experience, dancers’ aesthetic experience singles out the Excitement factor. The results are discussed within the context of dancers’ proprioception and spectators’ exteroception since these findings confirm the idea of a significant role of proprioception in dancers’ aesthetic experience.

  17. The EBEX Experiment

    CERN Document Server

    Oxley, P; Baccigalupi, C; De Bernardis, P; Cho, H M; Devlin, M J; Hanany, S; Johnson, B R; Jones, T; Lee, A T; Matsumura, T; Miller, A D; Milligan, M; Renbarger, T; Spieler, H G; Stompor, R; Tucker, G S; Zaldarriaga, M

    2004-01-01

    EBEX is a balloon-borne polarimeter designed to measure the intensity and polarization of the cosmic microwave background radiation. The measurements would probe the inflationary epoch that took place shortly after the big bang and would significantly improve constraints on the values of several cosmological parameters. EBEX is unique in its broad frequency coverage and in its ability to provide critical information about the level of polarized Galactic foregrounds which will be necessary for all future CMB polarization experiments. EBEX consists of a 1.5 m Dragone-type telescope that provides a resolution of less than 8 arcminutes over four focal planes each of 4 degree diffraction limited field of view at frequencies up to 450 GHz. The experiment is designed to accommodate 330 transition edge bolometric detectors per focal plane, for a total of up to 1320 detectors. EBEX will operate with frequency bands centered at 150, 250, 350, and 450 GHz. Polarimetry is achieved with a rotating achromatic half-wave pla...

  18. The space experiment PAMELA

    Energy Technology Data Exchange (ETDEWEB)

    Boezio, M. [INFN, Structure of Trieste and Physics Department of University of Trieste, Trieste (Italy)]. E-mail: mirko.boezio@ts.infn.it; Bonvicini, V. [INFN, Structure of Trieste and Physics Department of University of Trieste, Trieste (Italy); Mocchiutti, E. [INFN, Structure of Trieste and Physics Department of University of Trieste, Trieste (Italy)] [and others

    2004-09-01

    We present in this paper a status report of the space experiment PAMELA. PAMELA is a satellite-borne experiment which primarily aims to measure the antiproton and positron spectra in the cosmic radiation over a large energy range (from 80 MeV up to 190 GeV for antiprotons and from 50 MeV up to 270 GeV for positrons) and to search for antinuclei with a sensitivity of the order of 10{sup -8} in the antihelium/helium ratio. In addition, it will measure the light nuclear component of cosmic rays and investigate phenomena connected with Solar and Earth physics. The apparatus will be installed onboard the polar orbiting Resurs DK1 satellite, which will be launched into space by a Soyuz TM2 rocket in 2004 from Baikonur cosmodrome in Kazakhstan, for a 3 year long mission. PAMELA consists of: a time of flight system, a transition radiation detector, a magnetic spectrometer, an anticoincidence detector, an electromagnetic imaging calorimeter, a shower tail catcher scintillator and a neutron detector.

  19. Toroidal confinement experiments

    International Nuclear Information System (INIS)

    The Advanced Toroidal Facility (ATF) torsatron was the major focus of work in the area of toroidal confinement experiments during 1985. Studies have documented more clearly the flexibility that ATF will provide in investigating a range of magnetic configurations and have elucidated features that relate to control of plasma density and impurities. The construction project progressed well, with completion set for late 1986. The experimental program was more clearly defined, and extensive preparations were well under way at year's end. These efforts are described. In the area of advanced projects activities were carried out on two fronts. Stellarator reactor studies focused on ATF-like configurations that retain the potential for high beta at even lower aspect ratios, and the spherical torus concept was developed to the proposal stage and favorably reviewed by the Office of Fusion Energy. Confinement studies were carried out to establish physics requirements and options for compact ignition tokamak (CIT) experiments, as an aid for design selection and optimization. Details of these and other advanced studies are given. Active collaborations continued in several areas

  20. Stirling machine operating experience

    Energy Technology Data Exchange (ETDEWEB)

    Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

    1994-09-01

    Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

  1. Operating experience in reprocessing

    International Nuclear Information System (INIS)

    Since 1953, reprocessing has accumulated 180 years of operating experience in ten plants, six of them with 41 years of operation in reprocessing oxide fuel from light water reactors. After abortive, premature attempts at what is called commercial reprocessing, which had been oriented towards the market value of recoverable uranium and plutonium, non-military reprocessing technologies have proved their technical feasibility, since 1966 on a pilot scale and since 1976 on an industrial scale. Reprocessing experience obtained on uranium metal fuel with low and medium burnups can now certainly be extrapolated to oxide fuel with high burnup and from pilot plants to industrial scale plants using the same technologies. The perspectives of waste management of the nuclear power plants operated in the Federal Republic of Germany should be viewed realistically. The technical problems still to be solved are in a balanced relationship to the benefit arising to the national economy out of nuclear power generation and can be solved in time, provided there are clearcut political boundary conditions. (orig.)

  2. Sodium pool boiling experiment

    International Nuclear Information System (INIS)

    Boiling experiments on sodium pool have been performed since about ten years in view of the safety of liquid metal fast breeder reactors magnetohydrodynamic generation and so on. But boiling data have not been unified because of large difference. The boiling experiment on sodium pool was carried out under the conditions as simple as possible to pursue what causes the dispersion of data. Liquid sodium boiling was performed in a stainless steel vessel heated by the radiation from an electric furnace surrounding it. The experimental conditions are as follows: Cover gas Ar, Cover gas pressure 0.01-2.0 Kg/cm2 gauge. The temperature history through the beginning of boiling, heat flux, superheating degree of heating surface and other associated data were measured with thermo couples and related equipments. The boiling heat transfer coefficients were expressed as follows: d=(6.5-10.5)Psub(B)sup(0.4)Qsup(2/3), (Psub(B)2), d=(2.8-5.2)Qsup(2/3), (0.12), where d : boiling heat transfer coefficient, Psub(B) : cover gas pressure, Q : heat flux. It was concluded that the experimental data were affected by the content of cover gas solved in liquid phase, but the quantitative effect was not made clear in this work. (Iwase, T.)

  3. The NEXT experiment

    CERN Document Server

    Gomez-Cadenas, Juan Jose

    2014-01-01

    NEXT (Neutrino Experiment with a Xenon TPC) is an experiment to search neutrinoless double beta decay processes (bb0nu) in Xe136. The NEXT technology is based in the use of time projection chambers operating at a typical pressure of 15 bar and using electroluminescence to amplify the signal (HPXE). The main advantages of the experimental technique are: a) excellent energy resolution; b) the ability to reconstruct the trajectory of the two electrons emitted in the decays, which further contributes to the suppression of backgrounds; c) scalability to large masses; and d) the possibility to reduce the background to negligible levels thanks to the barium tagging technology (BATA). The NEXT roadmap was designed in four stages: i) Demonstration of the HPXE technology with prototypes deploying a mass of natural xenon in the range of 1 kg, using the NEXT-DEMO (IFIC) and NEXT-DBDM (Berkeley) prototypes; ii) Characterisation of the backgrounds to the bb0nu signal and measurement of the bb2nu signal with the NEW detecto...

  4. The EBEX Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Oxley, P.; Ade, P.; Baccigalupi, C.; deBernardis, P.; Cho, H-M.; Devlin, M.J.; Hanany, S.; Johnson, B.R.; Jones, T.; Lee, A.T.; Matsumura,T.; Miller, A.D.; Milligan, M.; Renbarger, T.; Spieler, H.G.; Stompor,R.; Tucker, G.S.; Zaldarriaga, M.

    2005-01-06

    EBEX is a balloon-borne polarimeter designed to measure the intensity and polarization of the cosmic microwave background radiation. The measurements would probe the inflationary epoch that took place shortly after the big bang and would significantly improve constraints on the values of several cosmological parameters. EBEX is unique in its broad frequency coverage and in its ability to provide critical information about the level of polarized Galactic foregrounds which will be necessary for all future CMB polarization experiments. EBEX consists of a 1.5 m Dragone-type telescope that provides a resolution of less than 8 arcminutes over four focal planes each of 4. diffraction limited field of view at frequencies up to 450 GHz. The experiment is designed to accommodate 330 transition edge bolometric detectors per focal plane, for a total of up to 1320 detectors. EBEX will operate with frequency bands centered at 150, 250, 350, and 450 GHz. Polarimetry is achieved with a rotating achromatic half-wave plate. EBEX is currently in the design and construction phase, and first light is scheduled for 2008.

  5. PAC Experiments at ISOLDE

    CERN Multimedia

    2002-01-01

    The study of hyperfine interactions offers the possibility to use radioactive nuclei as probes in matter. The @g-@g perturbated angular correlation (PAC) technique following implantation has found widespread application in this field. At ISOLDE we have been investigating electric field gradients at impurities in non-cubic metals in an ongoing series of experiments. \\\\ \\\\ The small number of probe atoms necessary for these measurements make them also ideally suited for studies of surface problems like diffusion, structure and dynamics. Cd on a molybdenum O110? surface will be studied as first system. For this purpose 10|1|0~atoms of |1|1|1|mCd will be evaporated onto the clean surface and the electric field gradient for isolated adatoms on terrace sites will be determined by PAC. The UHV system constructed for such experiments at ISOLDE is shown in the schematic drawing. It is coupled to the beam line through differential pumping stations and contains standard surface treatment and analysis equipment.

  6. The Halogen Occultation Experiment

    Science.gov (United States)

    Russell, James M., III; Gordley, Larry L.; Park, Jae H.; Drayson, S. R.; Hesketh, W. D.; Cicerone, Ralph J.; Tuck, Adrian F.; Frederick, John E.; Harries, John E.; Crutzen, Paul J.

    1993-01-01

    The Halogen Occultation Experiment (HALOE) uses solar occultation to measure vertical profiles of O3, HCl, HF, CH4, H2O, NO, NO2, aerosol extinction, and temperature versus pressure with an instantaneous vertical field of view of 1.6 km at the earth limb. Latitudinal coverage is from 80 deg S to 80 deg N over the course of 1 year and includes extensive observations of the Antarctic region during spring. The altitude range of the measurements extends from about 15 km to about 60-130 km, depending on channel. Experiment operations have been essentially flawless, and all performance criteria either meet or exceed specifications. Internal data consistency checks, comparisons with correlative measurements, and qualitative comparisons with 1985 atmospheric trace molecule spectroscopy (ATMOS) results are in good agreement. Examples of pressure versus latitude cross sections and a global orthographic projection for the September 21 to October 15, 1992, period show the utility of CH4, HF, and H2O as tracers, the occurrence of dehydration in the Antarctic lower stratosphere, the presence of the water vapor hygropause in the tropics, evidence of Antarctic air in the tropics, the influence of Hadley tropical upwelling, and the first global distribution of HCl, HF, and NO throughout the stratosphere. Nitric oxide measurements extend through the lower thermosphere.

  7. The Karlsruhe Dynamo Experiment

    Directory of Open Access Journals (Sweden)

    2002-01-01

    Full Text Available It has been shown theoretically in the past that homogeneous dynamos may occur in electrically conducting fluids for various vortical velocity fields. Roberts (1972 investigated spatially periodic, infinitely extended fields of vortices which Busse (1978, 1992 confined to a finite cylindrical domain. Based on Busse's vortex arrangement a conceptual design for an experimental homogeneous dynamo has been developed and a test facility was setup at the Forschungszentrum Karlsruhe. The first experiments demonstrated that permanent dynamo action can be generated in a cylindrical container filled with liquid sodium in which by means of guide tubes counterrotating and countercurrent spiral vortices are established. The dynamo is self-exciting and the magnetic field saturates at a mean value for fixed super-critical flow rates. The instantaneous magnetic field fluctuates around this mean value by an order of about 5%. As predicted by theory the mode of the observed magnetic field is non-axisymmetric. In a series of experiments a phase- and a bifurcation diagram has been derived as a function of the spiral and axial flow rates.

  8. Transpiration Cooling Experiment

    Science.gov (United States)

    Song, Kyo D.; Ries, Heidi R.; Scotti, Stephen J.; Choi, Sang H.

    1997-01-01

    The transpiration cooling method was considered for a scram-jet engine to accommodate thermally the situation where a very high heat flux (200 Btu/sq. ft sec) from hydrogen fuel combustion process is imposed to the engine walls. In a scram-jet engine, a small portion of hydrogen fuel passes through the porous walls of the engine combustor to cool the engine walls and at the same time the rest passes along combustion chamber walls and is preheated. Such a regenerative system promises simultaneously cooling of engine combustor and preheating the cryogenic fuel. In the experiment, an optical heating method was used to provide a heat flux of 200 Btu/sq. ft sec to the cylindrical surface of a porous stainless steel specimen which carried helium gas. The cooling efficiencies by transpiration were studied for specimens with various porosity. The experiments of various test specimens under high heat flux have revealed a phenomenon that chokes the medium flow when passing through a porous structure. This research includes the analysis of the system and a scaling conversion study that interprets the results from helium into the case when hydrogen medium is used.

  9. [Laparoscopic appendectomy. Our experience].

    Science.gov (United States)

    Pezzolla, Angela; Milella, Marialessia; Lattarulo, Serafina; Barile, Graziana; Pascazio, Bianca; Ialongo, Paolo; Fabiano, Gennaro; Palasciano, Nicola

    2012-01-01

    The advantages and applications of the videolaparoscopic technique (VL) versus open surgery in the treatment of acute and complicated appendicitis are not well defined. Our study examined 150 patients, 67 males and 83 females. They underwent surgery for acute appendicitis in emergency. The choice between open or laparoscopic tecnique was due to patient's clinical conditions and surgeon's experience. Two of these patients had no infiammatory process. Eleven patients were affected by gynaecological diseases. The last 137 patients underwent surgery for acute appendicitis and the diagnosis was confirmed. Among them, 35 (25%) were affected by a complicated appendicitis with diffuse or clearly defined peritonitis. In 134 patients the surgery was completed laparoscopically. The conversion rate was 2%. Morbility rate was 3%, due to intra abdominal abscesses secondary to acute complicated appendicitis. The mean operative time was 76 min and the mean hospital stay was 4.8 days. The death rate was 0%. In our experience, laparoscopic appendectomy has significant advantages over traditional open surgery in both acute and complicated appendicitis, especially in young women. In this way, we can diagnose pelvic disease that could be characterized by the same symptoms of acute appendicitis, then we suggest laparoscopic appendectomy even just to complete the diagnostic iter. Laparoscopy is useful in terms of convalescence, postoperative pain, hospital stay, aesthetic outcome and an easier exploration of the peritoneal cavity. PMID:22595725

  10. The Nucifer Experiment

    Science.gov (United States)

    Cucoanes, A. S.

    2014-06-01

    In nuclear reactors, a large number of antineutrinos are generated in the decay chains of the fission products; thus a survey of the antineutrino flux could provide valuable information related to the uranium and plutonium content of the core. This application generated interest by the IAEA in using antineutrino detectors as a potential safeguard tool. Here we present the Nucifer experiment, developed in France, by CEA and CNRS/IN2P3. The design of this new antineutrino detector has focused on safety, size reduction, reliability and high detection efficiency with a good background rejection. The Nucifer detector is currently taking data at the OSIRIS research reactor, inside CEA-Saclay. Presently, the ongoing analyses are considering the main sources of background for the antineutrino detection; the first antineutrino result is expected in 2013. A possible contribution to the understanding of the so called “reactor antineutrino anomaly” is also discussed. Finally, we present a brief description of the proposed experiments at very short baselines (VSBL) from reactors in France.

  11. The VIP Experiment

    International Nuclear Information System (INIS)

    The Pauli Exclusion Principle (PEP) is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its importance, it is very important to check it as thoroughly as possible. The recently approved VIP (VIolation of Pep) experiment, represents an improved version of the Ramberg and Snow experiment (Ramberg and Snow, Phys. Lett. B238 (1990) 438). VIP shall be performed at the Gran Sasso underground laboratories, and aims to test the Pauli Exclusion Principle for electrons with unprecedented accuracy. VIP is a Collaboration among four Institutions out of three countries (LNF-INFN, and INFN Trieste Italy; SMI-Vienna, Austria; IFIN-HH, Bucharest, Romania). It uses an apparatus with CCDs (Charge Coupled Device) as detectors of X rays - looking for PEP violating transitions in Copper: transitions from the 2p level to 1s with the 1s already occupied by 2 electrons. The characteristic of such transition is the energy - displaced with respect to the normal 2p ? 1s one by about 300 eV. VIP will bring the limit on the probability that PEP is violated by electrons to 10-30, exploring so a region where new theories allow for a possible PEP violation. (authors)

  12. Female physicist doctoral experiences

    Science.gov (United States)

    Dabney, Katherine P.; Tai, Robert H.

    2013-06-01

    The underrepresentation of women in physics doctorate programs and in tenured academic positions indicates a need to evaluate what may influence their career choice and persistence. This qualitative paper examines eleven females in physics doctoral programs and professional science positions in order to provide a more thorough understanding of why and how women make career choices based on aspects both inside and outside of school and their subsequent interaction. Results indicate that female physicists experience conflict in achieving balance within their graduate school experiences and personal lives and that this then influences their view of their future careers and possible career choices. Female physicists report both early and long-term support outside of school by family, and later departmental support, as being essential to their persistence within the field. A greater focus on informal and out-of-school science activities for females, especially those that involve family members, early in life may help influence their entrance into a physics career later in life. Departmental support, through advisers, mentors, peers, and women’s support groups, with a focus on work-life balance can help females to complete graduate school and persist into an academic career.

  13. The Early Experiments

    Science.gov (United States)

    Garvey, Gerald

    2013-04-01

    Stuart Freedman obtained his PhD at Berkley with an experimental thesis providing very strong evidence against theories requiring local hidden variables. He then came to Princeton in 1972 and began collaboration on a search for second-class currents. These measurements are quite difficult as the effects are the order of 1%, demonstrating Freedman's drive to take on hard but important experiments. After carrying out some relatively standard nuclear physics measurements he moved on to Stanford in 1976. There, Freedman was involved in identifying measurements sensitive to the existence of light axions. He also carried out searches for various exotica that might be produced from cosmic rays or the SLAC beam stop. During this time he was collaborating with us at Argonne investigating nuclear parity violation and time-like axial beta decay. In 1982 Freedman came to Argonne where he worked on fundamental issues in neutron beta decay. He also initiated what was to become one of his trademarks, demonstrating that surprising peaks in the e^+-e^- spectrum observed in very heavy ion collisions were spurious. He further launched his first neutrino oscillation experiment. This period of early research was marked by a remarkable diversity of subject matter and approach.

  14. The Virtual Arizona Experience

    Science.gov (United States)

    Allison, M. L.; Davis, R.; Conway, F. M.; Bellasai, R.

    2012-12-01

    To commemorate the once-in-a-lifetime event of Arizona's hundredth birthday, the Centennial Commission and the Governor of Arizona envisioned a museum and companion website that would capture the state's history, celebrate its people, and embrace its future. Working with world-renowned museum designers, the state began to seek ideas from across Arizona to create plans for a journey of discovery through science and the humanities. The museum would introduce visitors to some of the people who nurtured the state through its early years and others who are innovating its tomorrows. Showcases would include the resources and experiences that shaped the state's history and are transforming its present day, highlighting the ingenuity that tamed the wild frontier and is envisioning Arizona's next frontiers through science and technology. The Arizona Experience (www.arizonaexperience.org) was initially intended to serve as the web presence for the physical museum, but as delays occurred with the physical museum, the site has quickly developed an identify of its own as an interactive, multimedia experience, reaching a wider audience with functions that would be difficult or expensive to produce in a museum. As leaders in scientific and technological innovation in the state, the Arizona Geological Survey was tasked with designing and creating the Arizona Experience site. The general themes remain the same; however, the site has added content and applications that are better suited to the online environment in order to create a rich, dynamic supplement to a physical museum experience. The website offers the features and displays of the future museum with the interactive nature and learning environment of the web. This provides an encyclopedic overview of the State of Arizona by subject matter experts in a manner that is free and open to the public and erases socio-economic, political, and physical boundaries. Over the Centennial Year of 2012 the site will release a new theme and explore the people, land, and innovations that shape the themes. Themes include (in order of release) Celebrates, Mining & Minerals, Biotech & Life Sciences, Sports & Recreation, Energy, Water, Technology & Aerospace, People & Culture, Ranching & Agriculture, Native American Culture, Astronomy, 21st Century Workforce, and a Best of 2012 release. The materials developed for the site come from content matter experts across the state including academic institutions, historical societies, museums, and professional associations. Currently there are over 300 content providers contributing resources, data, and videos to the site. AZGS interactions with science and technology organizations, associations, and businesses have been critical as we work to engage visitors and industry with the opportunities in Arizona, and translate innovative research and scientific application for a more generalized audience. In addition, we are involving K-12 educators in using the site content and cutting edge technology for developing classroom STEM related content linked to curriculum subject areas.

  15. A Refined Experience Sampling Method to Capture Mobile User Experience

    OpenAIRE

    Cherubini, Mauro; Oliver, Nuria

    2009-01-01

    This paper reviews research methods used to understand the user experience of mobile technology. The paper presents an improvement of the Experience Sampling Method and case studies supporting its design. The paper concludes with an agenda of future work for improving research in this field. Keywords: Research methods, topology, case study, contrasting graph, Experience Sampling Method

  16. Experience Report for WOPR

    Energy Technology Data Exchange (ETDEWEB)

    Pope, G

    2010-04-06

    One of the purposes of the SQA effort at LLNL is to attempt to determine the 'goodness' of the research codes used for various scientific applications. Typically these are two and three dimensional multi-physics simulation and modeling codes. These legacy research codes are used for applciations such as atmospheric dispersion modeling and analysis and prediction of the performance of engineered systems. These codes are continually subjected to automated regression test suites consisting of verified and validated expected results. Code is managed in repositories. Experience level of developers is high in the knowledge domain, platforms, and languages used. Code size of the multi-physics code used in this study was 578,242 lines excluding comment and blank lines or 5538.7 function points. Languages were 70% C++, 20% C, and 10% Fortran. The code has 130 users and a development team of 14 and an embedded SQE. The code has achieved 100% prime feature test coverage, 73.6% functional test coverage, and 71.5% statement test coverage. The average cyclomatic complexity of the code was 6.25. The codes have evolved over 10 years. Research codes are challenging because there is a desire to balance agility with discipline as well as compliance with DOE standards. Agility is important to allow experimentation with new algorithms and addition of the latest physics features. Discipline is important to increase the quality of the codes. Automation of processes and defect prevention/detection are deployed throughout the software development process. Since resarch codes are a small segment of the software industry, not much information exists in terms of reliability studies on these types of codes. This paper describes attempts to determine the goodness of these research codes. Goodness defined as both correctness of the codes and their fault densities. Correctness is determined by user interviews, peer review; feature based automated testing, and coverage measurement. This paper focuses on the fault density aspect of goodness and reliability of the codes in particular. The approach taken was to use multiple fault density prediction methods and compare results to actual experimentation and other industry studies on fault density. As a result of the predictions and experiments our confidence in the prediction methods was increased and our confidence in the goodness of the code from a fault density perspective was given more context. A large unintended benefit of these experiments was to find defects hidden for years in the codes when using the Monte Carlo reliability testing results to develop heuristic based bug driven tests.

  17. ATRAP antihydrogen experiments

    Energy Technology Data Exchange (ETDEWEB)

    Storry, C.H.; Aggarwal, M.; Akbari, A.; Al-Rahawi, F.; Amole, C.; Bebko, A.; Carew, A.; Comeau, D.; Garofalo, F.; George, M.C.; Gura, Y.; Hessels, E.A. [York University, Department of Physics and Astronomy, Toronto, Ontario M3J 1P3 (Canada); Batrachenko, A.; Chalfin, M.; Gabrielse, G.; Guise, N. [Department of Physics, Harvard University, Cambridge, MA 02138 (United States); Goldenbaum, F.; Grzonka, D. [IKP, Forschungszentrum Juelich GmbH, 52425 Juelich (Germany); Haensch, T. [Max-Planck-Institut fuer Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching (Germany); Ludwig-Maximilians-Universitaet Muenchen, Schellingstrasse 4/III, 80799 Muenchen (Germany); Kolbe, D. [Johannes Gutenberg-Universitaet Mainz, Institut fuer Physik, Staudingerweg 7, 55099 Mainz (Germany); Kotlhammer, S.; Kuljanishvili, I.; Larochelle, P.; Lesage, D.; Levitt, B.; Lewis, K.; Lishak, B.; Markert, F.; Nillius, F.; Oelert, W.; Patel, S.; Popescu, P.; Scheid, M.; Sefzick, T.; Speck, A.; Swierad, D.; Walz, J.; Weel, M.; Wrubel, J.; Zang, Z.

    2007-07-01

    Antihydrogen (Hbar) was first produced at CERN in 1996. Over the past decade our ATRAP collaboration has made massive progress toward our goal of producing large numbers of cold Hbar atoms that will be captured in a magnetic gradient trap for precise comparison between the atomic spectra of matter and antimatter. The AD at CERN provides bunches of 3 x 10{sup 7} low energy Pbars every 100 seconds. We capture and cool to 4 K, 0.1% of these in a cryogenic Penning trap. By stacking many bunches we are able to do experiments with 3 x 10{sup 5} Pbars. {proportional_to}100 e{sup +}/sec from a {sup 22}Na radioactive source are captured and cooled in the trap, with 5 x 10{sup 6} available experiments.We have developed 2 ways to make Hbar from these cold ingredients, namely 3-body collisions, and 2-stage Rydberg charge exchange. In the first case, Pbars are injected into a nested trap containing e{sup +}. Hbar is formed when 2 e{sup +} and 1 Pbar collide. In 2-stage Rydberg charge exchange, laser-excited caesium (Cs) enters the trap through a small hole. Rydberg positronium is formed when a e{sup +} captures an e-from a Cs. These atoms exit the trap, some passing through a nearby cloud of cold Pbars. A 2nd charge-exchange results when a Pbar captures the e{sup +}, forming Hbar. We have also developed techniques to measure the excited-state distribution of the Hbar and measure their velocity. I will present results from these experiments and discuss the next generation of apparatus to be commissioned this year. This new apparatus includes a e+ accumulator built at York University providing many more e{sup +}. The new Pbar annihilation detector provides spatial information of annihilations. Windows allow lasers to enter the trap for spectroscopic measurements and for laser cooling of the Hbar. Possibly the most exciting inclusion in this new apparatus is the inclusion of a neutral particle trap which may, for the first time, capture the Hbar and lead to the first atomic spectrum from antimatter. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  18. The trapped human experiment.

    Science.gov (United States)

    Huo, R; Agapiou, A; Bocos-Bintintan, V; Brown, L J; Burns, C; Creaser, C S; Devenport, N A; Gao-Lau, B; Guallar-Hoyas, C; Hildebrand, L; Malkar, A; Martin, H J; Moll, V H; Patel, P; Ratiu, A; Reynolds, J C; Sielemann, S; Slodzynski, R; Statheropoulos, M; Turner, M A; Vautz, W; Wright, V E; Thomas, C L P

    2011-12-01

    This experiment observed the evolution of metabolite plumes from a human trapped in a simulation of a collapsed building. Ten participants took it in turns over five days to lie in a simulation of a collapsed building and eight of them completed the 6 h protocol while their breath, sweat and skin metabolites were passed through a simulation of a collapsed glass-clad reinforced-concrete building. Safety, welfare and environmental parameters were monitored continuously, and active adsorbent sampling for thermal desorption GC-MS, on-line and embedded CO, CO(2) and O(2) monitoring, aspirating ion mobility spectrometry with integrated semiconductor gas sensors, direct injection GC-ion mobility spectrometry, active sampling thermal desorption GC-differential mobility spectrometry and a prototype remote early detection system for survivor location were used to monitor the evolution of the metabolite plumes that were generated. Oxygen levels within the void simulator were allowed to fall no lower than 19.1% (v). Concurrent levels of carbon dioxide built up to an average level of 1.6% (v) in the breathing zone of the participants. Temperature, humidity, carbon dioxide levels and the physiological measurements were consistent with a reproducible methodology that enabled the metabolite plumes to be sampled and characterized from the different parts of the experiment. Welfare and safety data were satisfactory with pulse rates, blood pressures and oxygenation, all within levels consistent with healthy adults. Up to 12 in-test welfare assessments per participant and a six-week follow-up Stanford Acute Stress Response Questionnaire indicated that the researchers and participants did not experience any adverse effects from their involvement in the study. Preliminary observations confirmed that CO(2), NH(3) and acetone were effective markers for trapped humans, although interactions with water absorbed in building debris needed further study. An unexpected observation from the NH(3) channel was the suppression of NH(3) during those periods when the participants slept, and this will be the subject of further study, as will be the detailed analysis of the casualty detection data obtained from the seven instruments used. PMID:21908906

  19. Moessbauer experiments, ch. 1

    International Nuclear Information System (INIS)

    The magnetic properties of iron base alloys have been investigated as a function of the concentrations of the sp-elements Al, Si, Ga, Ge, As, Sn, and Sb. An extensive description of the Moessbauer Effect Spectroscopy (MES) technique is given. The results of MES experiments at room temperature for FeX alloys (X stands for one of the sp-elements) and impurity concentrations of 1, 3 and 5 a/o are presented. Through temperature dependant measurements the hyperfine fields H ((m,n)T) at iron nuclei in different surroundings are obtained. The change of the Curie temperature of the various dilute iron-base alloys, with respect to pure iron, as a function of the impurity concentration is investigated. Average magnetic hyperfine fields and isomer shifts measured at 119Sn nuclei in Fe119Sn are discussed

  20. Field services experiences

    International Nuclear Information System (INIS)

    Combustion Engineering (C-E) is a large diversified manufacturer of products and services for the energy field. At this time, C-E has supplied the nuclear steam supply systems for eleven operating nuclear power plants with two additional units currently undergoing start-up testing. The focus of C-E's commitment in the nuclear power plant services area is the Nuclear Services organization within the Nuclear Power Systems Division. The Nuclear Services organization provides services on a timely cost efficient basis; and dedicates resources to developing new products and services which are truly responsive to the needs of operating power plants world wide. In the paper, C-E's capabilities and experience in the field of nuclear services are described. Highlighted are our capabilities in the areas of transition management services, operating services and engineering services

  1. CRRES plasma wave experiment

    Science.gov (United States)

    Anderson, Roger R.; Gurnett, Donald A.; Odem, Daniel L.

    1992-01-01

    The CRRES plasma wave experiment is designed to provide information on the plasma wave environment and the total plasma density in the Earth's radiation belts and throughout the CRRES orbit. This information is valuable both for studying the naturally occurring wave-particle interactions affecting the plasma and particle environment in the plasmasphere and magnetosphere as well as for studying the chemical releases. The electric field sensors for this instrument consist of two long electric dipole antennas (about 100 m tip-to-tip), and the magnetic field sensor is a search coil magnetometer mounted at the end of a 6-m boom. The instrument has a 14-channel spectrum analyzer covering the frequency range from 5.6 Hz to 10 kHz, and a 128-step sweep frequency receiver covering the frequency range from 100 Hz to 400 kHz.

  2. Radionuclide Migration: Prediction Experience

    International Nuclear Information System (INIS)

    Many different methods of calculating radionuclide migration (transfer) with groundwater-from very simple handmade calculations to use of sophisticated computer models, - exist and are in use. There is no doubt whether we can solve a particular problem in this area; the question is how can we find means of doing this in a fast, precise and economical way. According to practical experience of MosSIA 'Radon' specialists it is useful at the first stage to assess the degree to which various parameters affect the final result. Then the relevance of modeling parameters is usually assessed. SUE MosSIA 'Radon' has applied this complex approach to assessing possible radionuclide transfer from the long term storage facilities located within one of the sites in Moscow. Questions of model verification, computer realization, the analysis of obtained results, a role and a place of these calculations in safety assessment and safety case are beyond the scope of this paper. (authors)

  3. The Tormac V experiment

    Science.gov (United States)

    Brown, I. G.; Feinberg, B.; Kunkel, W. B.; Levine, M. A.; Niland, R. A.; Shaw, R. S.; Vaucher, B. G.

    1982-01-01

    Tormac (Toroidal Magnetic Cusp) is a plasma confinement concept combining the favorable magnetohydrodynamic stability properties of a cusp geometry with the good particle confinement inherent to closed field geometry. A conceptual Tormac plasma has two regions; an interior region in which a toroidal bias or stuffing field is embedded, and an exterior or surface region confined by mirror trapping along open field lines. The combination of these two regions is expected to lead to a configuration having confinement substantially superior to that of a mirror, and to allow the plasma to be stable to high ?. The Tormac V experiment is an attempt to establish such a configuration and to investigate the characteristic behavior of the Tormac plasma. The Tormac concept, the Tormac V experimental setup, and the results are described.

  4. Tormac V experiment

    International Nuclear Information System (INIS)

    Tormac (Toroidal Magnetic Cusp) is a plasma confinement concept combining the favorable magnetohydrodynamic stability properties of a cusp geometry with the good particle confinement inherent to closed field geometry. A conceptual Tormac plasma has two regions; an interior region in which a toroidal bias or stuffing field is embedded, and an exterior or surface region confined by mirror trapping along open field lines. The combination of these two regions is expected to lead to a configuration having confinement substantially superior to that of a mirror, and to allow the plasma to be stable to high ?. The Tormac V experiment is an attempt to establish such a configuration and to investigate the characteristic behavior of the Tormac plasma. The Tormac concept, the Tormac V experimental setup, and the results are described

  5. The Cibola flight experiment

    Energy Technology Data Exchange (ETDEWEB)

    Caffrey, Michael Paul [Los Alamos National Laboratory; Nelson, Anthony [Los Alamos National Laboratory; Salazar, Anthony [Los Alamos National Laboratory; Roussel - Dupre, Diane [Los Alamos National Laboratory; Katko, Kim [Los Alamos National Laboratory; Palmer, Joseph [ISE-3; Robinson, Scott [Los Alamos National Laboratory; Wirthlin, Michael [BRIGHAM YOUNG UNIV; Howes, William [BRIGHAM YOUNG UNIV; Richins, Daniel [BRIGHAM YOUNG UNIV

    2009-01-01

    The Cibola Flight Experiment (CFE) is an experimental small satellite carrying a reconfigurable processing instrument developed at the Los Alamos National Laboratory that demonstrates the feasibility of using FPGA-based high-performance computing for sensor processing in the space environment. The CFE satellite was launched on March 8, 2007 in low-earth orbit and has operated extremely well since its deployment. The nine Xilinx Virtex FPGAs used in the payload have been used for several high-throughput sensor processing applications and for single-event upset (SEU) monitoring and mitigation. This paper will describe the CFE system and summarize its operational results. In addition, this paper will describe the results from several SEU detection circuits that were performed on the spacecraft.

  6. Baryon conservation (experiments)

    International Nuclear Information System (INIS)

    Proton decay as a generic term is here defined to include the decay of neutrons which have been stabilized against BETA-decay by nuclear binding. A history of proton stability is thus presented by means of a an annotated chronolgy and tables based on questionnaries. The latter supplied by research groups planning proton lifetime experiments outside the USA. Each of seven tables present location, depth, weight of detector, method of detection, Partial Lifetime Limits Obtainable, and Present Status and/or Time when (Preliminary) Results are Expected from each of the collaborative institutions. The latter include Frascati-Milano-Torino, Frascati-Milano-Rome-Torino, Orsay-Ecole Polytechnique-Saclay, Torino-Moscow-Frascati, Bombay-Osaka-Tokyo, and two locations reported on by the Institute for Nuclear Research of the Academy of Sciences of the USSR. Survey reports on other institutions are also given, imcluding universities

  7. Wake field acceleration experiments

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, J.D.

    1988-01-01

    Where and how will wake field acceleration devices find use for other than, possibly, accelerators for high energy physics. I don't know that this can be responsibly answered at this time. What I can do is describe some recent results from an ongoing experimental program at Argonne which support the idea that wake field techniques and devices are potentially important for future accelerators. Perhaps this will spawn expanded interest and even new ideas for the use of this new technology. The Argonne program, and in particular the Advanced Accelerator Test Facility (AATF), has been reported in several fairly recent papers and reports. But because this is a substantially new audience for the subject, I will include a brief review of the program and the facility before describing experiments. 10 refs., 7 figs.

  8. Licensing experience in Finland

    International Nuclear Information System (INIS)

    The roles of the authorities supervising nuclear power in Finland are briefly described. The main features in the regulation of nuclear facilities are related paying attention to the special questions associated with spent fuel storage. The storing of spent fuel from the Finnish power reactors (2 PWR, 2 BWR) began in 1978 and its history so far is described briefly. The stores are divided into certain groups that are important with respect to licensing (e.g. at NPS versus ISFSI). There are no dry storage systems in Finland under construction or 'on order'. The typical features, the most important experiences and design requirements in the licensing of spent fuel stores are presented. (author)

  9. Teneriffe, an Astronomer's Experiment

    Science.gov (United States)

    Piazzi Smyth, Charles

    2010-06-01

    Part I. The Voyage and the Climb: 1. Sailing in the Trades; 2. Santa Cruz; 3. Orotava; 4. Begin the ascent; 5. Arrival on Guajara; Part II. On the Crater of Elevation: 1. Securing the station; 2. South-west alarm; 3. Term-day work; 4. The great crater; 5. Solar radiation; 6. Whirlwinds and visitors; 7. Drought and light; 8. End of Guajara; Part III. On the Crater of Eruption: 1. Scaling the central cone; 2. Early experiences of Alta Vista; 3. Bringing up the telescope; 4. Battle of the clouds; 5. Summit of the peak; 6. Autumn in excelsis; 7. The reiterated question; 8. The ice cavern; 9. Last of the mountain; Part IV. Lowlands of Teneriffe: 1. Seasons and plants; 2. Dracoena Draco; 3. Adieu.

  10. The ICARUS experiment

    International Nuclear Information System (INIS)

    The ICARUS project aims at the realisation of a large liquid argon TPC to be run at the underground Laboratories of Gran Sasso in Italy. An intense R and D activity has put on firm grounds this novel detector technology and experimentally confirmed, on a few ton scale, its feasibility. Based on these solid achievements, the collaboration is now confident of being capable to build and safely operate a multi-kton detector. The research program of the experiment involves the systematic study of a large spectrum of physical phenomena that covers many orders of magnitude in the energy deposited in the detector: from the few MeV of solar neutrino interactions, to the about one GeV of the proton decay and atmospheric neutrinos, up to the higher energies of long baseline neutrinos from accelerators. (author)

  11. The pentomic experience

    International Nuclear Information System (INIS)

    The Pentomic experience is presented in outline form. The subject is discussed under the following topics: context, objectives, description, assessment, and lessons. The context included President Eisenhower's open-quotes new lookclose quotes strategy and service rivalry for nuclear share. The objectives for the Pentomic Division included dual capability with nuclear emphasis, strategic mobility, smaller, and major organizational changes. The Pentomic Division is described as a separate division in which the infantry battle group is a basic building block. The Pentomic Division was designed to be dual-capable in both conventional and nuclear warfare and was assessed or perceived to be neither. The possible reasons for the failure of the concept were: problem too hard, wrong solution, premature solution, weak implementation, and overambitious goals

  12. INITIAL COOLING EXPERIMENT (ICE)

    CERN Document Server

    1979-01-01

    ICE was built in 1977, using the modified bending magnets of the g-2 muon storage ring (see 7405430). Its purpose was to verify the validity of stochastic and electron cooling for the antiproton project. Stochastic cooling proved a resounding success early in 1978 and the antiproton project could go ahead, now entirely based on stochastic cooling. Electron cooling was experimented with in 1979. The 26 kV equipment is housed in the cage to the left of the picture, adjacent to the "e-cooler" located in a straight section of the ring. With some modifications, the cooler was later transplanted into LEAR (Low Energy Antiproton Ring) and then, with further modifications, into the AD (Antiproton Decelerator), where it cools antiprotons to this day (2006). See also: 7711282, 7802099, 7809081.

  13. Microgravity Thaw Experiment (MITEX)

    Science.gov (United States)

    Klein, A. C.

    1990-01-01

    The Microgravity Thaw Experiment (MITEX) is designed to visually observe effects of reduced gravity on solid-to-liquid phase changes under constrained geometry conditions. The MITEX hardware consists of a colored frozen water solution constrained within a clear cyclindrical tube wrapped with nichrome wire that provides heat input. Heat is transferred through the tube, ice is melted, and visual observations are recorded. A description is provided of the design and construction of the MITEX experimental package, a range of tests to be performed, and the results of preliminary ground test observations. Potential applications include the startup of a power system in space, management of fluid and thermal control systems in future space missions, maintenance of fluid systems on human inhabited space platforms, and materials processing in space.

  14. ?-oscillation experiment at BNL

    International Nuclear Information System (INIS)

    Construction of a 100 ton fiducial volume water Cherenkov test detector segmented with wave shifter bars is proposed. When completely instrumented, it will form one of two detectors needed for the possible experiments described. It will be located approx. 200 m from the ? target. Transitions between neutrino flavors are not ruled out in the current theories. Neither is the possibility that all or some neutrinos may carry some masses. So there are distinct possibilities that neutrinos may oscillate into each other. There is some experimental evidence for such oscillation but none is conclusive. The opportunities that exist at the AGS, BNL to explore this topical question are discussed. In the discussion, no attempt is made to optimize the experimental design or to take practical considerations into account. Detectors 1, 2, and 3 are defined to be approx. 100 tons, approx. 100 tons, approx. 1000 tons at approx. 100 m, approx. 200 m, approx. 1000 m from the ? target, respectively

  15. CBM Experiment at FAIR

    International Nuclear Information System (INIS)

    The Compressed Baryonic Matter (CBM) project at the future accelerator center FAIR will be a dedicated heavy-ion experimental operating in fixed target mode at beam energies from 8 to 45 AGeV. The ultimate goal of the research program is to explore the QCD phase diagram in the range of moderate temperature but the highest net-baryon densities. The CBM detector concept aims to obtain feasibility of measurement of hadronic, leptonic and photonic observables at interaction rates up to 10 MHz. It will allow to detect extremely rare probes such as charm near its production threshold. The CBM experiment will enter a new era with diagnostic probes never accessible before in the FAIR energy range, and thus has a unique research potential. (author)

  16. Customer experiences and expectations

    International Nuclear Information System (INIS)

    Customer experiences and expectations from competition and cogeneration in the power industry were reviewed by Charles Morton, Director of Energy at CPC International, by describing Casco's decision to get into cogeneration in the early 1990s in three small corn milling plants in Cardinal, London and Port Colborne, Ontario, mainly as result of the threat of a 40 per cent increase in power prices. He stressed that cost competitiveness of cogeneration is entirely site-specific, but it is generally more attractive in larger facilities that operate 24 hours a day, where grid power is expensive or unreliable. Because it is reliable, cogeneration holds out the prospect of increased production-up time, as well as offering a hedge against higher energy costs, reducing the company's variable costs when incoming revenues fall short of costs, and providing an additional tool in head-to-head competition

  17. The PODS diversity experiment

    International Nuclear Information System (INIS)

    A high integrity system typically has a number of redundant components operating in parallel to reduce the probability of a system failure. If the component failures were random, then the probability of several components failing simultaneously would be much smaller than the failure probability of any single component. However, should the components contain common design flaws, then more than one component could fail simultaneously due to a common cause (a common mode failure). This would increase the probability of a system failure. For a computer-based system where the same software component is being run in each processor, any software fault is a potential cause of common mode failure. One method of reducing common software faults is to use diverse software in each processor (n-version programming). This paper discusses how the use of software diversity raises a number of issues. A diversity experiment is described

  18. American Experience: Henry Ford

    Science.gov (United States)

    2013-01-29

    Henry Ford had a profound influence on America and the world in the 20th century. He was involved in a vast array of enterprises during his life, including the quest for world peace, automobile manufacturing, and even attempting to build a type of utopia in the Amazon known as "Fordlandia." This arresting documentary from PBS's American Experience series looks into his life in great detail. Visitors can watch the entire program here and also look through a range of photo galleries. The galleries include shots of workers at the Ford factory, along with videos of Ford "camping" with Thomas Edison. Perhaps the most interesting video here is one in which Ford gives dance lessons as part of his leisure time in Dearborn, Michigan.

  19. Biography of an Experiment

    Science.gov (United States)

    What is the life story of a scientific experiment? What is involved with such an undertaking? These are important questions, and they are being actively explored by undergraduates and faculty at Haverford College. This website brings together excerpts of original and influential manuscripts in the natural sciences, complete with annotations by undergraduates who have spent a semester "critically evaluating the work and assessing the authors' own perspectives." Currently, there are over a dozen documents here, including "The Invention of the Dye-sensitized Solar Cell" and "Protein folding and amyloidosis". Visitors can look at students' comments on each piece and also read short biographical profiles of each young scholar. This site may very well inspire similar initiatives at other institutions and it's inspiring to see the work of scientists as they engage in a conversation with established researchers.

  20. DEWFALL validation experiment designs

    Energy Technology Data Exchange (ETDEWEB)

    Lowry, B.; Walsh, B.

    1989-09-30

    Three experiments are proposed as tests to validate the DEWFALL analysis model for the large vessel project. This document is a very brief record of the techniques and test designs that could be used for validation of the model. Processes of the model which require validation include: (1) vaporization and recondensation of the vessel wall material due to energy transfer from the source, (2) melt and refreeze of vessel wall material, and (3) condensation and solidification of the source material. A methodology was developed to analyze the maximum thickness of material melted and vaporized with given experimental configurations and initial energies. DEWFALL reference calculations are included in an appendix to the document. 2 refs., 3 figs., 3 tabs.

  1. Spanwave Structure Functions Experiments

    Science.gov (United States)

    Mahjoub, O. B.

    The SPANWAVE European large scale facility was used toperform an experiment on the small scale turbulence of breaking and non-breaking flows. Different types of both regular and irregular waves were generated at the 100 m long wave flume at LIM-UPC, Barcelona. A range of wave periode was varied between 3 and 6 s and wave hieght was varied between 0.1 and 0.4 m. The velocity components were measered using two sonic velocimeters (SONTEK). The measurements of the longitudinal velocity structure functions at different depths and horizontal positions in the turbulent flow shown that there is no clear inertial range where the absolute scaling expenents are constants. Using the technique of Extended Self Similarity (ESS), we can define an inertial where the relative scaling exponents tend to be a scale independent quantity. The departure from the Kolmogorov's law K41 is shown at all the measured positions.

  2. Inverse ion diode experiment

    International Nuclear Information System (INIS)

    An experimental test has been performed of a novel ion diode intended for inertial confinement fusion applications. The diode is a small thin-walled evacuated glass sphere (nicknamed a ''light bulb'') which is irradiated by relativistic electron beams transported to the sphere via plasma channels. The virtual cathode formed by the electrons in the light bulb accelerates ions radially inwards from the walls of the sphere. The ions are focused on a levitated central target. Qualitative aspects of one-dimensional theoretical analyses of the light bulb are supported by the experimental results reported here. However, the overall ion beam generation efficiency in the experiment is evidently substantially below that of the simple theory, probably owing to two-dimensional effects

  3. Cell Radiation Experiment System

    Science.gov (United States)

    Morrison, Dennis R.

    2010-01-01

    The cell radiation experiment system (CRES) is a perfused-cell culture apparatus, within which cells from humans or other animals can (1) be maintained in homeostasis while (2) being exposed to ionizing radiation during controlled intervals and (3) being monitored to determine the effects of radiation and the repair of radiation damage. The CRES can be used, for example, to determine effects of drug, radiation, and combined drug and radiation treatments on both normal and tumor cells. The CRES can also be used to analyze the effects of radiosensitive or radioprotectant drugs on cells subjected to radiation. The knowledge gained by use of the CRES is expected to contribute to the development of better cancer treatments and of better protection for astronauts, medical-equipment operators, and nuclear-power-plant workers, and others exposed frequently to ionizing radiation.

  4. Dark Matter Search Experiments

    CERN Document Server

    Rau, Wolfgang

    2011-01-01

    Astronomical and cosmological observations of the past 80 years build solid evidence that atomic matter makes up only a small fraction of the matter in the universe. The dominant fraction does not interact with electromagnetic radiation, does not absorb or emit light and hence is called Dark Matter. So far dark matter has revealed its existence only through gravitational effects. The strongest experimental effort to find other evidence and learn more about the nature of the dark matter particles concentrates around Weakly Interacting Massive Particles which are among the best motivated dark matter candidates. The two main groups of experiments in this field aim for indirect detection through annihilation products and direct detection via interactions with atomic matter respectively. The experimental sensitivity is starting to reach the parameter range which is preferred by theoretical considerations and we can expect to confirm or dismiss some of the most interesting theoretical models in the next few years.

  5. Results from LHCf Experiment

    Directory of Open Access Journals (Sweden)

    Tricomi Alessia

    2012-06-01

    Full Text Available The LHCf experiment has taken data in 2009 and 2010 p-p collisions at LHC at ?s = 0.9 TeV and ?s = 7 TeV. The measurement of the forward neutral particle spectra produced in proton-proton collisions at LHC up to an energy of 14 TeV in the center of mass system are of fundamental importance to calibrate the Monte Carlo models widely used in the high energy cosmic ray (HECR field, up to an equivalent laboratory energy of the order of 1017 eV. In this paper the first results on the inclusive photon spectrum measured by LHCf is reported. Comparison of this spectrum with the model expectations show significant discrepancies, mainly in the high energy region. In addition, perspectives for future analyses as well as the program for the next data taking period, in particular the possibility to take data in p-Pb collisions, will be discussed.

  6. NASA global tropospheric experiment

    Science.gov (United States)

    McNeal, Robert J.; Mugler, John P., Jr.; Harriss, Robert C.; Hoell, James M., Jr.

    A major research effort, the Global Tropospheric Experiment (GTE), has been initiated by the National Aeronautics and Space Administration (NASA) to study the chemistry of the global troposphere and its interaction with the stratosphere, land, and oceans. The project currently involves approximately 20 principal investigators from 16 different institutions and is expected to expand over the next decade. The first phase of the project is aimed at developing and validating measurement techniques for trace species in tropospheric chemical cycles. It is designed to lead toward development and implementation of a cooperative research program involving NASA, scientists sponsored by the National Science Foundation, the National Oceanic and Atmospheric Administration, other government agencies, and research institutions abroad. The goal of the GTE is to understand the chemical cyles that control the composition of the global troposphere and its changes.

  7. The KAMI experiment at Fermilab

    Science.gov (United States)

    Yamanaka, T.

    2001-05-01

    The KAMI experiment at Fermilab is planning to measure the CP violation parameter, ?, by observing more than 100 KL ? ? 0? overline? events. Basic studies performed for the new experiment are presented.

  8. Analytical Chemistry Role Playing Experiments

    Science.gov (United States)

    Walters, John P.

    This page features a number of laboratory experiments (available for download in PDF format) which allow students the opportunity to role play in groups to solve problems. Experiments involve titrations, gravimetry, atomic absorption, chromatography.

  9. The Digital Archive Experience

    DEFF Research Database (Denmark)

    SØndergaard, Morten

    2009-01-01

    This article, as well as the book, investigates the ways in which new digital media may enhance the experience of the art-archive. Taken as a whole, the new media is a vital component of a 'transdisciplinary' and transformative field, a cultural landscape that is changing rapidly the conditions and domains of the archive and the (art)museum. How, then, should the functions and strengths of both archive and museum be shaped to meet those cultural and technological changes? When the Internet and world wide web became 'the place to be' commercially, museums followed suit and established their own sites. These can be coarsely divided into two categories: purely utilitarian websites with information about admission, hours of operation, directions, and the current show. The other - more ambitious - type of website tried to expand the exhibition area of the museum into virtual reality. The idea sounds great on paper but seldom succeeds in reality. Such websites often ignore the physical and social experience of a museum visit. Curiously, when they are most successful, websites often compete with the actual museum, possibly reducing the number of visitors and diluting the effect of seeing art first hand. The book discusses the challenges of the archive and the (art)museum in the age of digital media. It is based upon documentation from a research project, MAP - Media Art Platform, that drew upon the talents and collaboration of many institutions, artists, programmers, art historians, designers and others. The outcome of the project was presented at the exhibition TOTAL_ACTION - Art in the New Media Landscape at the Museum of Contemporary Art in Roskilde, Denmark, from October through November 2008.

  10. Voyager imaging experiment

    Science.gov (United States)

    Smith, B.A.; Briggs, G.A.; Danielson, G.E.; Cook, A.F., II; Davies, M.E.; Hunt, G.E.; Masursky, H.; Soderblom, L.A.; Owen, T.C.; Sagan, C.; Suomi, V.E.

    1977-01-01

    The overall objective of this experiment is exploratory reconnaissance of Jupiter, Saturn, their satellites, and Saturn's rings. Such reconnaissance, at resolutions and phase angles unobtainable from Earth, can be expected to provide much new data relevant to the atmospheric and/or surface properties of these bodies. The experiment also has the following specific objectives: Observe and characterize the global circulation of the atmospheres of Jupiter and Saturn; Determine the horizontal and vertical structure of the visible clouds and establish their relationship to the belted appearance and dynamical properties of the planetary atmospheres; Determine the vertical structure of high, optically-thin, scattering layers on Jupiter and Saturn; Determine the nature of anomalous features such as the Great Red Spot, South Equatorial Belt disturbances, etc.; Characterize the nature of the colored material in the clouds of Jupiter and Saturn, and identify the nature and sources of chromophores on Io and Titan; Perform comparative geologic studies of many satellites at less than 15-km resolution; Map and characterize the geologic structure of several satellites at high resolution (???1 km); Investigate the existence and nature of atmospheres on the satellites; Determine the mass, size, and shape of many of the satellites by direct measurement; Determine the direction of the spin axes and periods of rotation of several satellites, and establish coordinate systems for the larger satellites; Map the radial distribution of material in Saturn's rings at high resolution; Determine the optical scattering properties of the primaries, rings, and satellites at several wavelengths and phase angles; Search for novel physical phenomena, e.g., phenomena associated with the Io flux tube, meteors, aurorae, lightning, or satellite shadows. ?? 1977 D. Reidel Publishing Company.

  11. The Armstrong experiment revisited

    Science.gov (United States)

    Fuchs, Elmar C.; Wexler, Adam D.; Paulitsch-Fuchs, Astrid H.; Agostinho, Luewton L. F.; Yntema, Doekle; Woisetschläger, Jakob

    2014-04-01

    When a high-voltage direct-current is applied to two beakers filled with water or polar liquid dielectrica, a horizontal bridge forms between the two beakers. This experiment was first carried out by Lord Armstrong in 1893 and then forgotten until recently. Such bridges are stable by the action of electrohydrodynamic (EHD) forces caused by electric field gradients counteracting gravity. Due to these gradients a permanent pumping of liquid from one beaker into the other is observed. At macroscopic scale several of the properties of a horizontal water bridge can be explained by modern electrohydrodynamics, analyzing the motion of fluids in electric fields. Whereas on the molecular scale water can be described by quantum mechanics, there is a conceptual gap at mesoscopic scale which is bridged by a number of theories including quantum mechanical entanglement and coherent structures in water - theories that we discuss here. Much of the phenomenon is already understood, but even more can still be learned from it, since such "floating" liquid bridges resemble a small high voltage laboratory of their own: The physics of liquids in electric fields of some kV/cm can be studied, even long time experiments like neutron or light scattering are feasible since the bridge is in a steady-state equilibrium and can be kept stable for hours. It is also an electro-chemical reactor where compounds are transported through by the EHD flow, enabling the study of electrochemical reactions under potentials which are otherwise not easily accessible. Last but not least the bridge provides the experimental biologist with the opportunity to expose living organisms such as bacteria to electric fields without killing them, but with a significant influence on their behavior, and possibly, even on their genome.

  12. Experience in open markets

    International Nuclear Information System (INIS)

    The topic of discussion in this session was experience in open markets. The session was led by Guido Bachman, President of the Independent Power Producers' Society of Alberta (IPPSA), assisted by panel members Richard Way, Director of Energy Risk Management at TransAlta, John O'Donnell, Professor of Finance at Michigan State University, and Kelly Lail, Manager of Power Acquisition at B.C. Hydro. Way spoke of the experiences with market restructuring in Alberta, describing the consultative and legislative process which determined the structure of the Alberta Power Pool (APP). The Pool began operations in January 1996. Currently there are 33 participants from generators, to distributors and marketers. Supply and demand are managed by APP by setting an hourly price based on offers and bids. Both generators and distributors get the hourly pool price, so the input price and export price of the pool are the same, however, generators and distributors are free to enter into 'contract for difference' agreements. O'Donnell discussed the status of competition in Michigan. He stressed the importance of Ontario to the Michigan market, echoing the conviction of U.S. regulators that a freer economy works better. Kelly Lail spoke of the unbundling of B.C. Hydro into several generating, transmission and distribution companies in preparation for moving from exclusive service to exclusive wholesale competition. He predicted that the fierce competition will lead to a an industry shakeouttition will lead to a an industry shakeout, leaving only one big (B.C. Hydro) and a few niche players

  13. Biodiversity laws: State experiences

    Science.gov (United States)

    Clark, Jo

    1996-11-01

    The Western Governors' Association (WGA) includes both the public lands states with their issues and the plains states, which are 98% privately owned. WGA deals with most legislation affecting biodiversity, whether the effect is direct or tangential. It will probably not be possible, or desirable, for one entity to be in charge of biodiversity conservation. The Endangered Species Act, public lands laws, agricultural laws, water law, environmental laws, and funding legislation all affect biodiversity conservation and the responsibility for it. None of them on their own are enough, and most can cause harmful unintended consequences for biodiversity. The experience of western states in developing consensus principles for reauthorization of the Endangered Species Act provides an example of common-sense ways to improve management of biodiversity, notwithstanding the complexity and large stakes involved. The WGA's proposed changes call for increasing the role of states, streamlining the act, and increasing certainty for landowners and water users. To achieve sustainable conservation for biodiversity, the better question is not “Who is/should be in charge?”, it is “How do we get this done?” To answer this, we need goals, guidance, and bottom lines from federal laws, and management and oversight at the state level, but they all need to support local on-the-ground partnerships. Sustainable conservation requires the active participation of those who live there. WGA's experience in coordinating the Great Plains Partnership as well as its work with watershed efforts shed light on what to expect. Multilevel partnerships are not easy and require a different way of doing business. The ad hoc, sitespecific processes that result do not lend themselves to being legislated, fit into organizational boxes, or scored on a budget sheet. They do require common sense and a longterm perspective.

  14. When an experiment is crucial?

    OpenAIRE

    Pleitez, V.

    1998-01-01

    Although we accept that Physics is, as a last resort, an experimental science, the relationship between theory and experiment is far away from being trivial. Any experiment is always explained within a determinate theoretical context and, at the same time, an experiment can give suggestions for theories or even can bring new theoretical challenges. Thus, we cannot say without ambiguity when an experiment is a crucial one.

  15. Status of the SNO+ experiment

    Science.gov (United States)

    Kaspar, Jarek

    2011-10-01

    SNO+ is a large liquid scintillator detector following the successful SNO experiment with liquid scintillator replacing the heavy water. Located 2 km underground in Vale nickel mine in Sudbury, Canada, the experiment will detect solar neutrinos including the pep and CNO neutrinos, neutrinos from Earth, reactors, and supernovae. In addition, the experiment will search for neutrino-less double beta decay by adding 150-Nd to the scintillator. I will present the status of the experiment.

  16. Customer Experience Management in Retailing

    OpenAIRE

    Kamaladevi B

    2010-01-01

    Survival of fittest & fastest is the mantra of today,s business game. To compete successfully in this business era, the retailer must focus on the customer,s buying experience. To manage a customer,s experience, retailers should understand what "customer experience" actually means. Customer Experience Management is a strategy that focuses the operations and processes of a business around the needs of the individual customer. It represents a strategy that results in a w...

  17. Changing tomorrow in customer experience

    OpenAIRE

    Olenius, Leena

    2013-01-01

    This Master’s thesis explores the customer experience approach and considers the need of development in customer experience management in the case company. The key issues are how customer experience management, CEM, causes attention and whether it can be improved. Customer experience is important to take into account if the company wants to improve their customer satisfaction and this way to offer an added value to its important customers. Today’s business life has its own challenges ...

  18. Experiment facilities for life science experiments in space.

    Science.gov (United States)

    Uchida, Satoko

    2004-11-01

    To perform experiments in microgravity environment, there should be many difficulties compared with the experiments on ground. JAXA (Japan Aerospace Exploration Agency) has developed various experiment facilities to perform life science experiments in space, such as Cell Culture Kit, Thermo Electric Incubator, Free Flow Electrophoresis Unit, Aquatic Animal Experiment Unit, and so on. The first experiment facilities were flown on Spacelab-J mission in 1992, and they were improved and modified for the 2nd International Microgravity Laboratory (IML-2) mission in 1994. Based on these experiences, some of them were further improved and flown on another missions. These facilities are continuously being improved for the International Space Station use, where high level functions and automatic operations will be required. PMID:15858360

  19. Early smoking experience in adolescents

    OpenAIRE

    Urba?n, Ro?bert

    2010-01-01

    Initial smoking experience is a potential predictor of later smoking. Our study has a twofold aim: (1) to provide further support for construct validity of retrospective measurement of an early smoking experience questionnaire (ESE) in a representative sample of adolescents; (2) to examine the association of initial smoking experience with sensation-seeking, current smoking and nicotine dependence.

  20. Experiments for a Special Day

    Science.gov (United States)

    Gluck, Paul

    2008-01-01

    Special events like science days, teacher's meetings and physics recruiting efforts require spectacular and, if possible, interactive experiments for the audience. Based on past experience with such events, we have gathered and present here a series of demonstration experiments in mechanics, optics, waves and electricity which are suitable, and…

  1. Antihydrogen Experiment Gravity Interferometry Spectroscopy

    CERN Multimedia

    Allkofer, Y R; Trezzi, D; Dassa, L; Prevedelli, M; Ferrari, G; Vaccarone, R M; Krasnicky, D; Perini, D; Cerchiari, G; Belov, A; Kaltenbacher, T R; Boscolo, I; Sacerdoti, M G; Ferragut, R O; Nedelec, P; Testera, G; Bonomi, G; Al-qaradawi, I; Malbrunot, C L S; De almeida simoes, J J; Brusa, R S; Prelz, F; Manuzio, G; Riccardi, C; Fontana, A; Genova, P; Haug, F; Merkt, F; Turbabin, A; Castelli, F; Doser, M; Penasa, L; Gninenko, S; Cataneo, F; Zenoni, A; Rotondi, A; Nebbia, G; Cabaret, L; Comparat, D P; Scampoli, P; Dudarev, A; Kellerbauer, A G; Lagomarsino, V E; Mariazzi, S; Nesteruk, K P; Eisel, W T; Carraro, C; Zavatarelli, S M

    The AEGIS experiment (Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy) has the aim of carrying out the first measurement of the gravitational interaction of antimatter to a precision of 1%, by applying techniques from atomic physics, laser spectroscopy and interferometry to a beam of antihydrogen atoms. A further goal of the experiment is to carry out spectroscopy of the antihydrogen atoms in flight.

  2. Experiments for a special day

    International Nuclear Information System (INIS)

    Special events like science days, teacher's meetings and physics recruiting efforts require spectacular and, if possible, interactive experiments for the audience. Based on past experience with such events, we have gathered and present here a series of demonstration experiments in mechanics, optics, waves and electricity which are suitable, and supplement other efforts previously described in this journal

  3. IFA proof of principle experiments

    International Nuclear Information System (INIS)

    IFA proof of principle experiments is discussed. Controlled beam front motion experiments are reported, which demonstrate that accurate IFA programming of the motion of the potential well at the head of an IREB has been achieved. The status of IFA ion experiments is also discussed

  4. Promethee experiment and analysis

    International Nuclear Information System (INIS)

    Full text of publication follows: The thermal conditions of containers and storage rooms is one of the decisive aspects governing the various concepts for spent fuel assemblies interim storage. In case of vertical dry storage, current numerical models are insufficiently validated against representative experiments, especially for turbulent flow of air in an annuli where usual turbulence modelling developed for forced convection flows are not well adapted to mixed convection flows. For these reasons, EDF, CEA and Framatome are currently carrying out a basic model qualification program, launched in 1998 the experimental loop for axial flow is called PROMETHEE. The main features of the experimental vessel are near a scale 1 canister: height 5 m, diameter 90 cm, air gap thickness 10 cm. Radiative thermal exchange between canister and containment vessel being essential to be well known, emissivity of the walls have been measured. Motion of air along the canister may be natural or modified using an external fan, the tests presented control the boundary conditions and investigate the effect of the electrical power supplied (from 5 kW to 20 kW), the input and output 3D effect and the efficiency of the external wind. During the steady state and transient experiment, temperature profile of walls and air are carried out. In parallel detailed 2D and 3D thermal hydraulics calculation with the tools of the different partners (EDF: Code-Saturne, Framatome: Star-cd and CEA: TRIO and rne, Framatome: Star-cd and CEA: TRIO and FLOTRAN) have been submitted to the same boundary conditions. The Star-cd software is a general purpose code for fluid mechanics and thermal engineering. Full coupled convection - conduction - radiation heat transfers are modelled. A set of parametric calculations has been performed: Different mesh sizes and different turbulence models (variants of the standard k-epsilon model) have been investigated. From the benchmark, the experimental-calculation comparisons results of the profile temperature and flow pattern show a good agreement and the discrepancy specially when the power increases is analysed. The comparison with tests measurements led also to improve the modelling practices in problems involving such mixed convection flows. (authors)

  5. AGS experiments -- 1991, 1992, 1993

    International Nuclear Information System (INIS)

    This report contains: (1) FY 1993 AGS schedule as run; (2) FY 1994--95 AGS schedule; (3) AGS experiments ? FY 1993 (as of 30 March 1994); (4) AGS beams 1993; (5) AGS experimental area FY 1991 physics program; (6) AGS experimental area FY 1992 physics program; (7) AGS experimental area FY 1993 physics program; (8) AGS experimental area FY 1994 physics program (planned); (9) a listing of experiments by number; (10) two-page summaries of each experiment; (11) listing of publications of AGS experiments; and (12) listing of AGS experiments

  6. Mapping Bicyclists’ Experiences in Copenhagen

    DEFF Research Database (Denmark)

    Snizek, Bernhard; Nielsen, Thomas Alexander Sick

    This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists responded and sketched their most recent cycle route and a total of 890 points to locations along the route where they had had positive and negative cycling experiences. The survey was implemented as an online questionnaire built on Google Maps, and allowed up to three positive and three negative experience points to be mapped and classified. By relating the characteristics of the experience points and the routes to the traversed urban area in general, the significance of the preconditions for obtaining positive or negative experiences could be evaluated. Thereby urban spaces can be mapped according to the potential promotion of positive or negative experiences. Further, the method might be applied to assess the effect of proposed changes to the urban design in terms of cyclists’ experiences. Statistical analysis of the location attributes, traffic environments and conflicts, bicycle facilities, urban density, centrality, and environmental amenities indicates that positive experiences, or the absence of negative experiences, are clearly related to the presence of en-route cycling facilities, and attractive nature environments within a short distance of large water bodies or green edges along the route.

  7. Mapping bicyclists’ experiences in Copenhagen

    DEFF Research Database (Denmark)

    Snizek, Bernhard; Sick Nielsen, Thomas Alexander

    2013-01-01

    This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists responded and sketched their most recent cycle route and a total of 890 points to locations along the route where they had had positive and negative cycling experiences. The survey was implemented as an online questionnaire built on Google Maps, and allowed up to three positive and three negative experience points to be mapped and classified.By relating the characteristics of the experience points and the routes to the traversed urban area in general, the significance of the preconditions for obtaining positive or negative experiences could be evaluated. Thereby urban spaces can be mapped according to the potential promotion of positive or negative experiences. Further, the method might be applied to assess the effect of proposed changes to the urban design in terms of cyclists’ experiences.Statistical analysis of the location attributes, traffic environments and conflicts, bicycle facilities, urban density, centrality, and environmental amenities indicates that positive experiences, or the absence of negative experiences, are clearly related to the presence of en-route cycling facilities, and attractive nature environments within a short distance of large water bodies or green edges along the route.

  8. RF experiments on PLT

    International Nuclear Information System (INIS)

    A variety of rf experiments are being conducted on PLT in order to explore rf techniques which could improve tokamak performance parameters. Of special importance are the studies of ion Bernstein wave (IBW) heating, lower hybrid MHD stabilization and electron heating, down-shifted electron cyclotron heating, and fast wave current drive. Ion Bernstein wave heating results at modest power indicate that the particle confinement time could be enhanced relative to that for fast wave heating in the ion cyclotron range of frequencies (ICRF) and neutral beam heating. At these power levels a conclusive determination of energy confinement scaling with power cannot yet be given. Central sawtooth and m=1 MHD stabilization is being obtained with centrally peaked lower hybrid (LH) current drive and the central electron temperature is peaking to values (approx. 5 keV) well outside the bounds of 'profile consistency'. In this case the electron energy confinement is apparently increased relative to the ohmic value. The production of relativistic electrons via heating at the down-shifted electron cyclotron (EC) frequency is found to be consistent with theoretical predictions and lends support to the use of this method for heating in relatively high magnetic field devices. Finally, the study of fast wave current drive will begin in the near future to determine the efficacy of this method relative to that for the slow wave case and to determine if high density operation is feasible. (author)

  9. rf experiments on PLT

    International Nuclear Information System (INIS)

    A variety of rf experiments are being conducted on PLT in order to explore rf techniques which could improve tokamak performance parameters. Of special importance are the studies of ion Bernstein wave (IBW) heating, lower hybrid MHD stabilization and electron heating, down-shifted electron cyclotron heating, and fast wave current drive. Ion Bernstein wave heating results at modest power indicate that the particle confinement time could be enhanced relative to that for fast wave heating in the ion cyclotron range of frequencies (ICRF) and neutral beam heating. At these power levels a conclusive determination of energy confinement scaling with power cannot yet be given. Central sawtooth and m = 1 MHD stabilization is being obtained with centrally peaked lower hybrid (LH) current drive and the central electron temperature is peaking to values (approx.5 keV) well outside the bounds of ''profile consistency.'' In this case the electron energy confinement is apparently increased relative to the ohmic value. The production of relativistic electrons via heating at the down-shifted electron cyclotron (EC) frequency is found to be consistent with theoretical predictions and lends support to the use of this method for heating in relatively high magnetic field devices

  10. Use experience of FLUKA

    Energy Technology Data Exchange (ETDEWEB)

    Nakashima, Hiroshi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-03-01

    In order to conduct the shield design calculation of the Large Hadron Collider (LHC) under planning in CERN at present, the radiation group of CERN uses FLUKA (Monte Carlo High Energy Radiation Transport Code). Here is introduced on outline of FLUKA and use experience of FLUKA in the LHC-B detector shield design calculation in LHC plan. FLUKA can be said to be the highest standard in the high energy radiation transportation code of the world at every points of the physical model, the Monte Carlo calculation technique and the convenience at usage of the code. In Japan Atomic Energy Research Institute (JAERI), a using right of FLUKA for the target neutronics and facility shielding design at the neutron science research center is obtained and it seems to be an effective design means in these future designs. However, because FLUKA is allowed a limited opening and no own verification on the code, it will be supposed to be a large problem on investigating a validity in design. (K.G.)

  11. Target irradiation experiments

    International Nuclear Information System (INIS)

    Target irradiation experiments have been carried out on the Hydra accelerator, operating at powers between 0.15 and 0.3 TW. As listed in Table I, four types of spherical shell targets have been studied: 3 mm diameter, 200 ?m and 50 ?m wall thickness Au targets; 3 mm diameter, 300 ?m wall thickness plastic targets; and 0.85 mm diameter, 10 ?m wall thickness Ni targets. When compared to a practical range for 700 keV electrons, the ratio of shell thickness to electron range varied between 0.03 for the Ni targets to 1.5 for the thick walled Au targets. Multiple exposure optical holography was utilized to determine ablator velocity, and a one-dimensional hydrodynamical materials code CHARTD was utilized to model target response and infer beam deposition. Energy deposition varied from 1 TW/gm for thick Au targets up to 8 TW/gm for thin Ni targets, and pusher velocities ranged between 0.5 and 3.5 cm/?sec. Neutron production from D2 and DT filled Ni exploding pusher targets was measured using Ag and Li activation counters and gated scintillator photomultiplier time of flight detectors

  12. A Fracture Decoupling Experiment

    Science.gov (United States)

    Stroujkova, A. F.; Bonner, J. L.; Leidig, M.; Ferris, A. N.; Kim, W.; Carnevale, M.; Rath, T.; Lewkowicz, J.

    2012-12-01

    Multiple observations made at the Semipalatinsk Test Site suggest that conducting nuclear tests in the fracture zones left by previous explosions results in decreased seismic amplitudes for the second nuclear tests (or "repeat shots"). Decreased seismic amplitudes reduce both the probability of detection and the seismically estimated yield of a "repeat shot". In order to define the physical mechanism responsible for the amplitude reduction and to quantify the degree of the amplitude reduction in fractured rocks, Weston Geophysical Corp., in collaboration with Columbia University's Lamont Doherty Earth Observatory, conducted a multi-phase Fracture Decoupling Experiment (FDE) in central New Hampshire. The FDE involved conducting explosions of various yields in the damage/fracture zones of previously detonated explosions. In order to quantify rock damage after the blasts we performed well logging and seismic cross-hole tomography studies of the source region. Significant seismic velocity reduction was observed around the source regions after the initial explosions. Seismic waves produced by the explosions were recorded at near-source and local seismic networks, as well as several regional stations throughout northern New England. Our analysis confirms frequency dependent seismic amplitude reduction for the repeat shots compared to the explosions in un-fractured rocks. The amplitude reduction is caused by pore closing and/or by frictional losses within the fractured media.

  13. Toroidal confinement experiments

    International Nuclear Information System (INIS)

    The major part of these activities has again been directed at the Advanced Toroidal Facility (ATF). The construction project has been somewhat delayed by difficulties in fabricating the vacuum vessel, but completion and first operations of the facility are expected in the summer of 1987. A major accomplishment of the construction work was a successful assembly of the helical coil system. Numerous other activities, in both hardware and physics categories, are involved in the preparations for operations, and the schedules for these are on track. In the areas of advanced projects and studies, there has been work on an eventual successor to ATF (ATF-II), an ATF-based reactor (ATR), the Spherical Torus Experiment (STX), the Compact Ignition Tokamak (CIT), and the Engineering Test Reactor (ETR/TIBER-II). The latter two are contributions to the national effort toward definition of these facilities. Other collaborations represented in this report include those on Heliotron-E (US-Japan), TFTR (ORNL-PPPL), ALT-II (US-F.R.G.-Japan), and Tore Supra (US-France). Other activities are covered in the form of abstracts

  14. Gathering positive experience

    CERN Multimedia

    2009-01-01

    Last Monday, the new CERN Machine Advisory Committee (CMAC) met for the first time, and we had good news to tell its members. Over the weekend, injection tests for both LHC beams were successfully carried out. In other words, we’ve had beam in the LHC for the first time since September 2008. That’s a good feeling, but it’s no reason for complacency. There’s still a long way to go before first physics at the new energy frontier. As the Bulletin has reported over recent weeks, we’re gathering a lot of positive experience with the new quench detection and protection system (QPS), which is already allowing us to monitor the LHC far better than we were able to in the past. So far, the QPS for three of the LHC’s eight sectors has been put through its paces, and we’ve also power tested those sectors to 2000 amperes, the equivalent of around 1.2 TeV per beam. The next step is to slowly increase the current to 4000 amperes, and...

  15. Designing for profound experiences

    DEFF Research Database (Denmark)

    Jensen, Jesper Legaard

    2014-01-01

    Det øgede fokus på oplevelser og på design som leverer på en mere meningsfuld måde angiver et nyt område til udforskning, som bevæger sig ud over simpel problemløsning til en dybere udforskning af mulighederne i vores levede oplevelser. Det efterlader designere med en meget vanskelig opgave - at fange essensen af den enorme kompleksitet af den virkelige verden, på en måde, som ville tillade os at forstå og kreativt bygge videre på det. Denne artikel omhandler disse vanskelige spørgsmål, og foreslår, at en opdeling af oplevelser i tre dimensioner kan være gavnligt. Den første vedrører den instrumentale niveau (håndgribelige produkter), det andet vedrører flow / handlinger (brugs-oplevelser), og den tredje vedrører den dybere mening (dybe oplevelser). Jeg beskriver forskellene mellem dem gennem forskellige eksempler, hvilket fører til at foreslå brugen af forskellige metoder til hver. Som følge heraf angives egenskaber for en metodologi rettet mod 3. dimension - dybe erfaringer. I denne artikel beskriver jeg yderligere et værktøj, der er egnet til en sådan metodologi kaldet Experience Scope Framework (ESF). ESF er tænkt som et redskab til at udforske dyb erfaring ved at udtrække menings-strukturer fra en oplevelse. ESF, der blev introduceret i denne artikel, er ikke nødvendigvis anvendelig i alle situationer, men anses for at være et værdifuldt bidrag som et redskab til designprocessen, og som et eksempel på en metode, der passer den foreslåede metodologi godt.

  16. Young students experience theory

    CERN Multimedia

    2004-01-01

    Three sixteen-year-old students from the International School of Geneva, La Chataigneraie have spent a week finding out about the life of a theoretical physicist at CERN. Student Peter Bishop at the blackboard with Robert Fleischer of Theory Division. Peter Bishop, Sam Schoenholz and Alexander Hultin spent the time with the Theory Unit of the Physics department. The visit was at the suggestion of the students themselves, who are required to undertake work experience at an organization, gaining insights into professional life, as part of their studies. After an introduction to CERN at Microcosm, each student had the opportunity to learn about physics at a level well beyond their current academic training. They were mentored by theoretical physicists who introduced them to the basics of particle physics, discussing physics in general as well as topics such as predicting the mass of the Higgs boson and cosmology. A visit to CMS, guided by Ariane Frey, proved very impressive, but the working conditions of physi...

  17. A moving experience !

    CERN Multimedia

    2005-01-01

    The Transport Service pulled out all the stops and, more specifically, its fleet of moving and lifting equipment for the Discovery Monday on 6 June - a truly moving experience for all the visitors who took part ! Visitors could play at being machine operator, twiddling the controls of a lift truck fitted with a jib to lift a dummy magnet into a wooden mock-up of a beam-line.They had to show even greater dexterity for this game of lucky dip...CERN-style.Those with a head for heights took to the skies 20 m above ground in a telescopic boom lift.Children were allowed to climb up into the operator's cabin - this is one of the cranes used to move the LHC magnets around. Warm thanks to all members of the Transport Service for their participation, especially B. Goicoechea, T. Ilkei, R. Bihery, S. Prodon, S. Pelletier, Y. Bernard, A.  Sallot, B. Pigeard, S. Guinchard, B. Bulot, J. Berrez, Y. Grandjean, A. Bouakkaz, M. Bois, F. Stach, T. Mazzarino and S. Fumey.

  18. National experience in dismantling

    International Nuclear Information System (INIS)

    This paper summarizes the Spanish experience in dismantling activities, briefly describing the three cases where these activities have been or are being carried out in Spain by ENRESA: Vandellos 1 NPP, Jose Cabrera NPP and CIEMAT. The dismantling of the Vandellos 1NPP was organized in three phases, two of which have already been implemented. The facility is currently in a waiting period which will allow the decay of radioactivity of the reactor box internal structures to levels that make feasible the dismantling process at a minimum radiological cost. The dismantling activities of the Jose Cabrera NPP, started in February 2010, take part of the first NPP full decommissioning process in Spain. following a set preparatory activities performed during the first two years, the project has just finished one of its major milestones, the real differential factor of this project: the reactor internals segmentation. CIEMAT launched in January 2000 and Integrated Plan for the Improvement of CIEMAT Facilities (PIMIC), one of whose projects, the called PIMIC Dismantling Project, assigned the ENRESA. is aimed at the dismantling, presently completed, of two nuclear and two radioactive facilities and to the decontamination of land in two areas known as Lenteja and Montecillo. Due to their specificity against the dismantling activities in the two NPPs mentioned above, the work done to achieve the full restoration of the area called Lenteja, which was contaminated in the 70s, as a result of an occidental release, is summarized in this paper. (Author)

  19. The JRC experiment program

    International Nuclear Information System (INIS)

    JRC-ETHEL has chosen as the principle objective of its research program the improvement of protection measures in facilities handling large amounts of tritium. Technically, this involves investigating and assessing tritium propagation modes and transfer pathways in materials, components, equipment, and process plants. The experiment research work to be performed in ETHEL will basically aim at investigating: (1) Loss mechanisms by identifying physico-chemical parameters such as adsorption/desorption rates, permeation rates, leakages of materials for fusion reactors and the effects of potential remedies like permeation barriers under process-like conditions. (2) Multiple containment systems and fluid clean-up concepts under normal and accidental conditions. (3) Methods for solid waste handling, treatment, conditioning, and final disposal. (4) Techniques for tritium control, monitoring, and surveillance over the whole concentration range during both normal and accidental conditions and maintenance activities. With the availability of two open-quotes climate chambers,close quotes the small and large caissons of 5 and 350 m3 volume respectively, ETHEL is especially suited for benchmark and scale-up tests of many kinds of large gas volumes treatment system. This will help to close the gap between laboratory-scale results and plant-size design specifications and represents an important source of information for designers (NET, ITER) and regulatory authoritiesNET, ITER) and regulatory authorities

  20. Experience City.DK

    DEFF Research Database (Denmark)

    Marling, Gitte; Kiib, Hans

    2009-01-01

    I de seneste 20 år er der foretaget meget store investeringer i kulturhuse, museer og koncertsale. Mange nye spillesteder og "performancehuse" er dukket op, og som noget nyt sker der en samlokalisering af forskellige kunstarter med cafemiljøer, uddannelsesmiljøer, bibliotekter og virksomheder med relation til kunst, kultur og oplevelse. Især de store provinsbyer er gået ind i disse typer af projekter og involverer offentlige og private partnerskaber i skabelse af konsumorienterede underholdningsmiljøer i byen. Herudover er stort set alle danske byer og deres offentligt tilgængelige rum blevet ramme om en stribe af kulturelle begivenheder. Kulturnætter, karneval, festuger og events med i udgangspunkt i så forskellige temaer som historie, poesi, lys, naturvidenskab og musik mv. Der er tale om en "kulturel podning af byen" - både aktivitesmæssigt, fysisk og arkitektonisk som gør, at de centrale bydele omtales som "oplevelsesbyen". Den kulturelle podning stiller krav til de fysiske omgivelser, til arkitekturen ogtil design af byrum. Experience City.DK undersøger betingelser for og konsekvenser af nye hybride kulturprojekter og performative byrum i danske byer.

  1. Operating experience at CEBAF

    International Nuclear Information System (INIS)

    CEBAF, the Continuous Electron Beam Accelerator Facility, is a 5-pass, recirculating, superconducting rf linac designed to provide exceptional beam quality at 4 GeV up to 200 ?A CW. It is made up of an injector, two 400-MeV linacs, and 9 recirculation arcs having a total beamline length of more than 4.5 km. On Nov. 5, 1995, CEBAF delivered a 4 GeV, 25-?A CW electron beam to the first of 3 experimental halls and the experimental physics program was started 10 days later. Accelerator availability during the first month of the experimental run exceeded 75%. Beam properties measured in the experimental hall to date are a one sigma momentum spread of 5x10-5 and an rms emittance of 0.2 nanometer-radians, better than design specification. CW beam has been provided from all 5 passes at 800 MeV intervals. Outstanding performance of the superconducting linacs suggests a machine energy upgrade to 6 GeV in the near term with eventual machine operation at 8-10 GeV. Results from commissioning and operations experience since the last conference are presented

  2. Radiophosphorus inhalation experiments

    International Nuclear Information System (INIS)

    The PIANO 3 inhalation device was used to expose Wistar SPF rats to NaH232PO4 and Ca3(32PO4)2 aerosol. The exposure lasted 60 minutes, the 32P activity in the aerosol was 5.61 kBq in one litre of air. The cardiac output of the rats was 178.9±42.9 ml. The deposition was measured with a whole-body counter for rats, the retained amount was determined from the volume activity of the aerosol, cardiac output and the time of exposure. From the inhaled amount of aerosol, the part deposited in the respiratory tract was 47.6%. Retention and excretion values were measured in the period of 0 to 7 days after the inhalation. Sodium salt was mainly excreted with urine in the first day (Es/Em=0.7570), calcium salt was mainly excreted with feces (Es/Em=2.31). The distribution of radioactivity in the respiratory tract, alimentary tract and other tissues was observed in the time intervals 0-6-24-72-168 hours after the exposure. Similar distribution was also shown after interavenous administration of radiophosphorus. General principles of management of inhalation experiments are discussed. (author). 3 figs., 2 tabs., 5 refs

  3. The Brazilian Experience

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, Antonio Carlos S. de

    1998-12-31

    This presentation discusses the technology and experience of Petrobras in the development of deep-water exploitation off the coast of Brazil. The company recently found important oil deposits in waters over 300 m deep in Campos Basin, the main petroleum province in Brazil, located offshore Rio de Janeiro State. It is estimated that 50% of the new discoveries will take place in waters deeper than 1000 m. Unlike other companies, Petrobras made an option to develop its offshore fields by means of sub-sea equipment and floating production units. This was possible mainly because of the characteristics of the reservoirs and the mild environmental conditions in Campos Basin. Petrobras has 288 subsea trees on the seabed, 48 subsea manifolds and 21 floating production units in operation. The company has constantly moved on to deeper and deeper waters and by the end of 1998 a new milestone will be achieved with a Roncador field subsea well at 1853 m. Procap-2000, a strategic research and development corporate programme for ultra-deep water technology, was developed. Other innovations by Petrobras are also discussed. 3 figs.

  4. The PAMELA Space Experiment

    CERN Document Server

    Mocchiutti, E; Barbarino, G C; Bazilevskaya, G A; Bellotti, R; Boezio, M; Bogomolov, E A; Bonechi, L; Bongi, M; Bonvicini, V; Borisov, S; Bottai, S; Bruno, A; Cafagna, F; Campana, D; Carbone, R; Carlson, P; Casolino, M; Castellini, G; De Pascale, M P; De Simone, N; Di Felice, V; Galper, A M; Gillard, W; Grishantseva, L; Hofverberg, P; Jerse, G; Koldashov, S V; Krutkov, S Y; Kvashnin, A N; Leonov, A; Maksumov, O; Malvezzi, V; Marcelli, L; Menn, W; Mikhailov, V V; Nikonov, N N; Osteria, G; Papini, P; Pearce, M; Picozza, P; Ricci, M; Ricciarini, S B; Rossetto, L; Runtso, M; Simon, M; Sparvoli, R; Spillantini, P; Stozhkov, Yu I; Vacchi, A; Vannuccini, E; Vasilyev, G; Voronov, S A; Wu, J; Yurkin, Y T; Zampa, G; Zampa, N; Zverev, V G

    2009-01-01

    The 15th of June 2006, the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The apparatus comprises a time-of-flight system, a silicon-microstrip magnetic spectrometer, a silicon-tungsten electromagnetic calorimeter, an anticoincidence system, a shower tail counter scintillator and a neutron detector. The combination of these devices allows precision studies of the charged cosmic radiation to be conducted over a wide energy range (100 MeV -- 100's GeV) with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectrum in order to search for exotic sources, such as dark matter particle annihilations. PAMELA is also searching for primordial antinuclei (anti-helium) and testing cosmic-ray propagation models through precise measurements of the anti-particle energy spectrum and precision studies of light nuclei and their isotopes. Moreover, PAMELA is investigating phenomena connected with so...

  5. Joint collaborative technology experiment

    Science.gov (United States)

    Wills, Michael; Ciccimaro, Donny; Yee, See; Denewiler, Thomas; Stroumtsos, Nicholas; Messamore, John; Brown, Rodney; Skibba, Brian; Clapp, Daniel; Wit, Jeff; Shirts, Randy J.; Dion, Gary N.; Anselmo, Gary S.

    2009-05-01

    Use of unmanned systems is rapidly growing within the military and civilian sectors in a variety of roles including reconnaissance, surveillance, explosive ordinance disposal (EOD), and force-protection and perimeter security. As utilization of these systems grows at an ever increasing rate, the need for unmanned systems teaming and inter-system collaboration becomes apparent. Collaboration provides a means of enhancing individual system capabilities through relevant data exchange that contributes to cooperative behaviors between systems and enables new capabilities not possible if the systems operate independently. A collaborative networked approach to development holds the promise of adding mission capability while simultaneously reducing the workload of system operators. The Joint Collaborative Technology Experiment (JCTE) joins individual technology development efforts within the Air Force, Navy, and Army to demonstrate the potential benefits of interoperable multiple system collaboration in a force-protection application. JCTE participants are the Air Force Research Laboratory, Materials and Manufacturing Directorate, Airbase Technologies Division, Force Protection Branch (AFRL/RXQF); the Army Aviation and Missile Research, Development, and Engineering Center Software Engineering Directorate (AMRDEC SED); and the Space and Naval Warfare Systems Center - Pacific (SSC Pacific) Unmanned Systems Branch operating with funding provided by the Joint Ground Robotics Enterprise (JGRE). This paper will describe the efforts to date in system development by the three partner organizations, development of collaborative behaviors and experimentation in the force-protection application, results and lessons learned at a technical demonstration, simulation results, and a path forward for future work.

  6. The LOPES experiment

    International Nuclear Information System (INIS)

    LOPES is a digital interferometric antenna array co-located with the particle detector KASCADE-Grande at the Karlsruhe Institute of Technology (KIT).Being one of the pioneers in the detection and in the interferometric analysis of the radio emission from cosmic ray air showers at MHz frequencies, LOPES still provides us with relevant results. Since the first measurements in 2003, LOPES was reconfigured several times in order to test different setup and antenna types, and to address different questions concerning the radio emission from air showers. In its latest configuration, a tripole antenna is tested, which makes LOPES able to measure all three components of the electric field vector of the radio emission, and to better compare measurements with simulations. This talk will give an overview of the recent status and outcomes of the LOPES experiment. Thanks to a large statistics of well reconstructed events, LOPES measurements are used for comparison with simulations (REAS and CoREAS), giving a crucial contribution in better understanding the radio emission mechanisms. The updated results concerning a successful reconstruction of fundamental air shower parameters, such as the arrival direction, the primary energy and the depth of the shower maximum, with reasonably high precision are presented.

  7. Glovebox fire experiment, (1)

    International Nuclear Information System (INIS)

    The gloveboxes used for plutonium facilities in Japan and foreign countries have considerable combustibles as their components, so that the fire resistivity of the gloveboxes is a serious problem in the safety evaluation of the facilities. Actually, a big fire having burned gloveboxes occurred in a foreign weapon facility. But the fire in the weapon facility should be distinguished from that in nuclear fuel facilities, since the former handles quite combustible plutonium metal, while the latter handle quite stable plutonium oxide. The countermeasures to fires should be decided, considering the properties and quantity of combustibles around gloveboxes and ventilation systems, as the probability and scale of fires can be presumed from them. From the viewpoint of safety, the experiment on glovebox fires was carried out by the Plutonium Fuel Division, PNC. The experimental conditions are explained. The samples were the acrylic resin panels with four glove ports and a small glovebox currently used. The glovebox showed the considerable fire resistance, and the panel hardly burned. The weakest component of the glovebox against fire was the gloves. The countermeasure to curtain the gloves with an insulating material seemed to be effective. The ventilation of the room and the glovebox worked as fire preventer at least in the first stage of fire. (Kako, I.)

  8. VISIR: Experiences and Challenges

    Directory of Open Access Journals (Sweden)

    Mohamed Tawfik

    2012-02-01

    Full Text Available It is of crucial importance the integration of practical sessions in engineering curricula owing to their significant role in understanding engineering concepts and scientific phenomena. However, the lack of practical sessions due to the high costs of the equipment and the unavailability of instructors has caused a significant declination in experimentation in engineering education. Remote laboratories have tackled this issues providing online reusable and shared workbenches unconstrained by neither geographical nor time considerations. Thereby, they have extremely proliferated among universities and integrated into engineering curricula over the last decade. This contribution compiles diverse experiences based on the deployment of the remote laboratory, Virtual Instrument Systems in Reality (VISIR, on the practices of undergraduate engineering grades at various universities within the VISIR community. It aims to show the impact of its usage on engineering education concerning the assessments of students and teachers as well. In addition, the paper address the next challenges and future works carried out at several universities within the VISIR community.

  9. ECO steam explosion experiments

    International Nuclear Information System (INIS)

    Steam explosions are a safety concern during analysis of LWR core melt accidents. In case of a steam explosion, part of the thermal energy of the melt is transferred into mechanical energy. The ECO experiments are being conducted to measure the Energy COnversion under well-defined conditions. Alumina from a thermite reaction (2600 K) is used for simulating the corium. The facility consists of a piston and cylinder system. Under the pressure forces due to the explosion, the piston moves downwards compressing a stack of crushing material with well-defined forces. This gives a direct measurement of the mechanical energy. Very low energy conversion ratios were obtained in the tests ECO-01 to ECO-03 (less than 0.1 %). Therefore the test conditions where changed in the following tests ECO-04 to ECO-06. In fact, the energy conversion became more effective: about 0.5 % in ECO- 04 and 2.35 % in ECO-05. In this test the strongest explosion of the test series occurred, with pressures well beyond 50 MPa and a conversion factor of 2.35 %. ECO-06 was a reproducibility test. The pressure rise during premixing was similar to ECO-05, but the energy conversion was smaller (about 0.8 %), although pressures in excess of 90 MPa have been registered. The ECO tests will continue with the aim to maximize the energy conversion and to test reproducibility. Attempts are made to analyze the tests with steam explosion codes like MATTINA

  10. PARATHYROID CARCINOMA: PERSONAL EXPERIENCE

    Directory of Open Access Journals (Sweden)

    G. Favia

    2008-04-01

    Full Text Available Parathyroid carcinoma (PC is a rare disease; experience with its management is limited. The aim of this retrospective study was to evaluate a relatively large series of patients suffering from PC. METHODS: Since 1980, PC was diagnosed in the 4.4% of cases of primary hyperparathyroidism (HPT (23 patients. Clinical and biochemical features, and surgical outcome were analyzed. RESULTS: In patients with PC, the mean serum calcium was 3.34 mmol/L; the tumor size 30.5 mm. Malignancy was never diagnosed preoperatively. Thirty-two operations were performed; six patients underwent repeated surgery. Recurrence of HPT was observed in 100% of patients. The median disease-free interval was 15 months (range 2-74 months. Fifteen patients died because of the disease; 5 years survival was 24 %. A significant correlation was found between late recurrences and prolonged survival; less advanced age and higher preoperative calcium levels predicted early recurrences. CONCLUSIONS: Preoperative diagnosis of PC is difficult. Preoperative severe hypercalcemia should alert the surgeon. En bloc resection of the PC and the adjacent structures is the treatment of choice. Unfortunately, recurrences are common and long-term survival rate is low.

  11. Single-nucleon experiments

    Energy Technology Data Exchange (ETDEWEB)

    Alexandre Deur

    2009-12-01

    We discuss the Jefferson Lab low momentum transfer data on moments of the nucleon spin structure functions $g_1$ and $g_2$ and on single charged pion electroproduction off polarized proton and polarized neutron. A wealth of data is now available, while more is being analyzed or expected to be taken in the upcoming years. Given the low momentum transfer selected by the experiments, these data can be compared to calculations from Chiral Perturbation theory, the effective theory of strong force that should describe it at low momentum transfer. The data on various moments and the respective calculations do not consistently agree. In particular, experimental data for higher moments disagree with the calculations.The absence of contribution from the $\\Delta$ resonance in the various observables was expected to facilitate the calculations and hence make the theory predictions either more robust or valid over a larger $Q^2$ range. Such expectation is verified only for the Bjorken sum, but not for other observables in which the $\\Delta$ is suppressed. Preliminary results on pion electroproduction off polarized nucleons are also presented and compared to phenomenological models for which contributions from different resonances are varied. Chiral Perturbation calculations of these observables, while not yet available, would be valuable and, together with these data, would provide an extensive test of the effective theory.

  12. Experiments with particle damping

    Science.gov (United States)

    Hollkamp, Joseph J.; Gordon, Robert W.

    1998-06-01

    High cycle fatigue in jet engines is a current military concern. The vibratory stresses that cause fatigue can be reduced by adding damping. However, the high temperatures that occur in the gas turbine greatly hinder the application of mature damping technologies. One technology which may perform in the harsh environment is particle damping. Particle damping involves placing metallic or ceramic particles inside structural cavities. As the cavity vibrates, energy is dissipated through particle collisions. Performance is influenced by many parameters including the type, shape, and size of the particles; the amount of free volume for the particles to move in; density of the particles; and the level of vibration. This paper presents results from a series of experiments designed to gain an appreciation of the important parameters. The experimental setup consists of a cantilever beam with drilled holes. These holes are partially filled with particles. The types of particles, location of the particles, fill level, and other parameters are varied. Damping is estimated for each configuration. Trends in the results are studied to determine the influence of the varied parameter.

  13. Droplet Combustion Experiment (DCE)

    Science.gov (United States)

    Haggard, John B., Jr.; Nayagan, Vedha; Dryer, Frederick L.; Williams, Forman A.

    1998-01-01

    The first space-based experiments were performed on the combustion of free, individual liquid fuel droplets in oxidizing atmospheres. The fuel was heptane, with initial droplet diameters ranging about from 1 mm to 4 mm. The atmospheres were mixtures of helium and oxygen, at pressures of 1.00, 0.50 and 0.25 bar, with oxygen mole fractions between 20% and 40%, as well as normal Spacelab cabin air. The temperatures of the atmospheres and of the initial liquid fuel were nominally 300 K. A total of 44 droplets were burned successfully on the two flights, 8 on the shortened STS-83 mission and 36 on STS-94. The results spanned the full range of heptane droplet combustion behavior, from radiative flame extinction at larger droplet diameters in the more dilute atmospheres to diffusive extinction in the less dilute atmospheres, with the droplet disappearing prior to flame extinction at the highest oxygen concentrations. Quasisteady histories of droplet diameters were observed along with unsteady histories of flame diameters. New and detailed information was obtained on burning rates, flame characteristics and soot behavior. The results have motivated new computational and theoretical investigations of droplet combustion, improving knowledge of the chemical kinetics, fluid mechanics and heat and mass transfer processes involved in burning liquid fuels.

  14. Particle physics experiments, 1991

    International Nuclear Information System (INIS)

    Data taking for this experiment was completed in December 1983. The samples include approximately 19,000 (?) and 11,000 (?-bar) charged current events. These constitute the largest data set of interactions on free protons. Work published to date includes studies of inclusive structure functions and final state properties, exclusive final states, neutral current cross sections and production of strange and charmed particles. During the past year results have been published on the production of f2 (1270) and ?0 (770) mesons in ?p and ?-barp charged current interactions. In the case of the f2 this represents the first observation of such production. It is found that the multiplicities are 0.047±0.017 in ?p and 0.17±0.018 in ?-barp. The f2 mesons are mostly produced at large hadronic invariant mass W and in the forward hemisphere. The production of ?0 mesons can be observed with high statistics in both ?p and ?-barp interactions and the differential cross section studied. The observations are compared with LUND Monte Carlo predictions, which are generally found to be too high. However qualitative features of the data are reproduced. Work continues on a precise determination of the neutral current/charged current ratio, on the study of charged and neutral current structure functions and on the production of strange particles. (author)

  15. Biofuels: The African experience

    Energy Technology Data Exchange (ETDEWEB)

    Carrillo, L.A.; Nkolo, M. [German Agency for Technical Cooperation GTZ, Delegation Regionale des Eaux et Forets, Bertoua (Cameroon)

    2009-07-01

    In July 2006, the African Non-Petroleum Producers Association was formed in Senegal, Africa to develop alternative energy sources. It involved 13 of Africa's poorest nations, who joined forces to become global suppliers of biofuels, and some have set mandatory mixing of ethanol into gasoline. Although several biofuel production projects have been launched in western Africa, many of the new projects and plantations have not yet reached maturity due to the time lag between plantation and full-scale production, which is about 6 years. Major projects that could be producing significant quantities of biofuels in the next few years are not yet reflected in production statistics. Although ethanol is not yet being produced in large quantities in Africa, short-term opportunities exist. Countries in the South African Development Community are using molasses from the sugar can industry to produce ethanol. Biodiesel is also not currently produced on a significant scale in western Africa, but several other countries are gaining experience with cotton and palm oil resources, and Jatropha. Biomass residue also represents a large potential for all African countries involved in timber production. Unlike biodiesel production, land use conflicts are not an issue with biomass residue production.

  16. Progress in LHD experiment

    International Nuclear Information System (INIS)

    In the third campaign (07.13.99-12.14.99), NBI (?4.2 MW), ICRH (?1.4 MW) and ECRH (?0.9 MW) were used to heat the plasma in LHD. The carbon tiles were installed as divertor plates, resulting in significant reduction in metal impurity concentration (Fe). The maximum field used in the experiment is 2.9 T. Upgrading of the key hardware systems led to (i) higher Te [Te(0)=4.4 keV at n-bare=5.3 x 1018 m-3 and Pabc=1.8 MW], (ii) higher confinement [?E=0.3 s, Te(0)=1.1 keV at ne(0)=6.5 x 1019 m-3 and Pabc=2.0 MW], (iii) higher stored energy Wp=880 kJ, (iv) higher volume averaged ?-bar=2.4% (at B=1.3T). The temperature pedestal enhances the confinement significantly (50% higher than the ISS95 scaling). The ICRH heating was found to be as efficient as NBI heating. Long pulse discharges (80 sec NBI shot, 68 sec ICRH shot) have been achieved without any technical difficulty. (author)

  17. The HERMES experiment

    International Nuclear Information System (INIS)

    The study of the spin structure of the nucleon is a fundamental problem in strong interaction physics. The HERMES experiment at DESY, Hamburg, Germany is carrying out measurements to probe the spin structure of the nucleon using a new technique. Polarized internal gas targets of hydrogen, deuterium, and 3He are used with the 27.5 GeV longitudinally polarized positron (or electron) beam of the HERA collider to measure both inclusive and semi-inclusive spin-dependent deep-inelastic scattering from the nucleon. In addition, HERMES has observed a negative spin asymmetry in the photoproduction of hadron pairs with high transverse momenta. This is interpreted as the first direct experimental evidence for a positive gluon polarization in the nucleon. The azimuthal single-spin asymmetry measured in semi-inclusive pion production at HERMES is presented and interpreted as an effect of a new T-odd fragmentation function. HERMES also has carried out precision measurements of the ratios of unpolarized nuclear cross-sections. The data indicate a sizable nuclear dependence in the ratio of longitudinal to transverse cross-sections at low Q2

  18. Condensed landscape experience

    DEFF Research Database (Denmark)

    Earon, Ofri

    ‘Re-thinking interaction between landscape and urban buildings’ participates in an interdisciplinary discourse about the theoretical and practical advantages of openly juxtaposing landscape and architecture without having one more advanced in importance. Recently, the greenification of buildings is becoming a standard in contemporary architecture. Merging architecture and landscape has turned into a principle for an ecological / sustainable architecture. Yet, my aspiration is to achieve a wider interaction involving an application of a wider range of perspectives, such as: urban identity, social demands, quality of space, mixture of functions, urban complexity, public life and cultural heritage. In order to launch such an approach, an understanding of the spatial, social and environmental significance of a radical re-thinking of relationships between architecture and landscape is necessary. This paper addresses the question of whether the sensation of landscape can be condensed in function or to the size of an urban building. It also discusses the benefits and potentials of the amalgamate, by underlining the unique qualities of such a hybrid. In an attempt to define the experience of landscape, eight attributes are introduced: discover, diversity, cyclic, equality, scale, transformation, topography and wilderness. The essay analyzes the attendance of these attributes in two existing fascinating hybrid structures. The first example is The High-Line a public space in New York, and the second example is Dubiner Apartment House in Israel. Even though the examples are rather different one from the other, they embody a beneficial exchange of architectural and landscape features.

  19. American Experience: Emma Goldman

    Science.gov (United States)

    Dubbed "Red Emma, queen of the anarchists" by the tabloids of the time, Emma Goldman, noted iconoclast and social revolutionary, was one of the most controversial and interesting women in American for over four decades. During her time in the U.S., this Russian emigrant who came to the country in 1885, spoke in defense of labor rights, women's emancipation, birth control, and free speech. This website is designed to complement the American Experience documentary on her life and times and contains a number of features that present additional information about her various passions and crusades. At the site visitors can learn about the film, read a transcript of the program, and access valuable primary sources about Goldman's life. Some of these sources include her own writings, interviews with Goldman, and the complete text of the February 1915 issue of Mother Earth, Goldman's own magazine. The site is rounded out by a great interactive map that lets visitors tour around the country with Goldman as she embarks on her 18-state lecture tour of 1911.

  20. NASA In-step: Permeable Membrane Experiment

    Science.gov (United States)

    1992-01-01

    Viewgraphs on the Permeable Membrane Experiment are presented. An experiment overview is given. The Membrane Phase Separation Experiment, Membrane Diffusion Interference Experiment, and Membrane Wetting Experiment are described. Finally, summary and conclusions are discussed.

  1. Advanced tracking and data relay experiment study: Multimode transponder experiment

    Science.gov (United States)

    Cnossen, R. S.

    1973-01-01

    A series of experiments utilizing a multimode transponder mounted in an aircraft working either through a spacecraft or directly with a ground station is studied. The purpose of the experiments is to determine the best modulation and encoding techniques for combating RFI and multipath propagation and to determine the characteristics of VHF and UHF RFI in discreet bands. The experiments would also determine the feasibility and accuracy of range and range rate measurements with the various modulation and encoding techniques.

  2. Safety experiments and fire extinction experiments with alkali metals

    International Nuclear Information System (INIS)

    In addition to experimental runs with test facilities, fire extinction experiments are performed routinely with open spill-catchpans. Certain safety aspects of the high temperature test facility HT 3 as well as a different behaviour of Sodium and Potassium fires necessitated the realization of fire extinction experiments with a more exact problem definition. The report gives a description of the test facilities and the experiments performed. (Author)

  3. Design of Computer Experiments

    DEFF Research Database (Denmark)

    Dehlendorff, Christian

    2010-01-01

    The main topic of this thesis is design and analysis of computer and simulation experiments and is dealt with in six papers and a summary report. Simulation and computer models have in recent years received increasingly more attention due to their increasing complexity and usability. Software packages make the development of rather complicated computer models using predefined building blocks possible. This implies that the range of phenomenas that are analyzed by means of a computer model has expanded significantly. As the complexity grows so does the need for efficient experimental designs and analysis methods, since the complex computer models often are expensive to use in terms of computer time. The choice of performance parameter is an important part of the analysis of computer and simulation models and Paper A introduces a new statistic for waiting times in health care units. The statistic is a measure of the extent of long waiting times, which are known both to be the most bothersome and to have the greatest impact on patient satisfaction. A simulation model for an orthopedic surgical unit at a hospital illustrates the benefits of using the measure. Another important consideration in connection to simulation models is the design of experiments, which is the decision of which of the possible configurations of the simulation model that should be tested. Since the possible configurations are numerous and the time to test a single configuration may take minutes or hours of computer time, the number of configurations that can be tested is limited. Papers B and C introduce a novel experimental plan for simulation models having two types of input factors. The plan differentiates between factors that can be controlled in both the simulation model and the physical system and factors that are only controllable in the simulation model but simply observed in the physical system. Factors that only are controllable in the simulation model are called uncontrollable factors and they correspond to the environmental factors in fluencing the physical system. Applying the experimental framework on the simulation model in Paper A shows that the effects of changes in the uncontrollable factors are better understood with the proposed design compared to the alternative and commonly used methods. In papers D and E a modeling framework for analyzing simulation models with multiple noise sources is presented. It is shown that the sources of variation of the simulation model can be divided in two components corresponding to changes in the environmental factors (the uncontrollable factor settings) and to random variation. Moreover, the structure of the environmental effects can be estimated, which can be used to put the system in a more robust operating mode. The interpolation technique called Kriging is the topic of Paper F, which is a widely applied technique for building so called models-for-the-model (metamodels). We propose a method that handles both qualitative and quantitative factors, which is not covered by the standard model. Fitting the final Kriging model is done in two stages each based on fitting regular Kriging models. It is shown that this method works well on a realistic example such as a simulation model for a surgical unit.

  4. Peritoneal dialysis - experiences

    Directory of Open Access Journals (Sweden)

    ?ur?evi?-Mirkovi? Tatjana

    2010-01-01

    Full Text Available Peritoneal dialysis is the method of treatment of terminal-stage chronic kidney failure. Nowadays, this method is complementary to haemodialysis. It is based on the principles of the diffusion of solutes and ultrafiltration of fluids across the peritoneal membrane, which acts as a filter. The dialysate is introduced into the peritoneum via the previously positioned peritoneal catheter. The peritoneal dialysis is carried out on daily basis, at home by the patient, and the ”exchange” is repeated 4-5 times during the 24 hours. The first steps in peritoneal dialysis at the Department for Haemodialysis of the Clinical Centre of Vojvodina date back to 1973. Until 1992, the patients were subjected to this program only sporadically. Since 1998 the peritoneal dialysis method has been performed at the Clinic for Nephrology and Clinical Immunology. In the period 1998-2008 ninety nine peritoneal catheters were placed. Chronic glomerulonephritis, nephroangiosclerosis and diabetes were identified as the most common causes of chronic renal failure. Two methods of catheter placement were applied: the standard open surgery method (majority of patients and laparoscopy. Most of the patients were subjected to continuous ambulatory peritoneal dialysis, whereas four patients received automatic dialysis. Transplantation was performed in 10 patients, i.e. cadaveric transplantation and living-related donor transplantation, each in 5 patients. Peritoneal dialysis was available as a service outside our institution as well. A ten-year experience in peritoneal dialysis gained at our Centre has proved the advantages and qualities of this method, strongly supporting its wider application in the treatment of terminal-stage chronic kidney failure.

  5. DSM - the Iowa experience

    International Nuclear Information System (INIS)

    The Iowa Legislature passed a landmark bill in the 1990 session which became effective July 1, 1990. This legislation had several components, the most significant being a requirement for rate-regulated utilities in Iowa to begin implementing energy efficiency program. The legislation sets spending targets of 2% of gross electric revenues and 1 1/2% of gross gas revenues. It also requires five specific program areas to be considered. Administrative rule making to comply with the legislation was completed in early 1991 and all utility plans were filed by July 1, 1991. The plans were reviewed in individual contested proceedings and most were approved by February 1, 1992. The final orders in all of the proceedings required the utilities to begin the programs in 1992. Iowa-Illinois Gas and Electric Company proposed and received approval on eight programs spanning all customer classes. Most of the programs include both gas and electric measures. The four residential programs were implemented on March 1, 1992 and the four commercial/industrial programs were implemented on April 1, 1992. Costs of the programs are deferred in special accounts until a contested cost recovery proceeding is convened. The legislation requires cost recovery from customers to lag the program implementation by at least two years. Therefore, those proceedings will commence in 1994 with amortization to be spread over four years following an order in that proceeding. The presentation will follow the seqding. The presentation will follow the sequence of the following charts as well as detail experience in the programs to date

  6. DIRAC Experiment at CERN

    International Nuclear Information System (INIS)

    The strong interaction dynamics is still not fully understood within the Standard Model (SM) of elementary particles. Quantum Chromodynamics (QCD), describing the strong interaction part of the SM, has successfully been tested, but only in the perturbative region of large momentum transfer. In the nonperturbative region of QCD, Chiral Perturbation Theory (ChPT) seems to be the candidate theory for low momentum processes, exploiting the mechanism of spontaneous breakdown of chiral symmetry. Precise predictions of ChPT have so far not been tested experimentally at an equivalent accuracy level. DIRAC experiment aims to measure accurately the ?? s-wave scattering lengths at very low momentum transfer. This should be achieved by measuring the lifetime of the ?+ ?- exotic atom (A2?). For the first time, experimental evidence in favour of or against the existence of a strong quark condensate in the QCD vacuum, could be within reach. The experimental setup has been installed at the 24 GeV Proton Synchrotron of CERN. All the detectors were tuned and used for physical data taking in 1999. The trigger selects coincidences of particles in the two spectrometer arms. In order to accumulate ?+ ?- pairs from ionized A2? atoms, the multi-level trigger accepts predominantly pion pairs with small relative momentum (MeV/c region). The proton interaction with a Ni (100 ?m) target has been used as pion source for A2? production. Preliminary analysis of the experimental data has shown good detector performance (alignment, calibration, resolution): - calibration by ? mass measurement (m? = 1115.6 MeV/c2 with a ?-peak width ? = 0.92 MeV/c2); - momentum resolution (?p?6.5 x 10-3); - relative momentum resolution (?Q ?2.7 MeV/c); - evidencing the Coulomb correlated ?+?- pairs with low relative momentum. (authors)

  7. Simulator experiments: effects of NPP operator experience on performance

    International Nuclear Information System (INIS)

    During the FY83 research, a simulator experiment was conducted at the control room simulator for a GE Boiling Water Reactor (BWR) NPP. The research subjects were licensed operators undergoing requalification training and shift technical advisors (STAs). This experiment was designed to investigate the effects of senior reactor operator (SRO) experience, operating crew augmentation with an STA and practice, as a crew, upon crew and individual operator performance, in response to anticipated plant transients. Sixteen two-man crews of licensed operators were employed in a 2 x 2 factorial design. The SROs leading the crews were split into high and low experience groups on the basis of their years of experience as an SRO. One half of the high- and low-SRO experience groups were assisted by an STA. The crews responded to four simulated plant casualties. A five-variable set of content-referenced performance measures was derived from task analyses of the procedurally correct responses to the four casualties. System parameters and control manipulations were recorded by the computer controlling the simulator. Data on communications and procedure use were obtained from analysis of videotapes of the exercises. Questionnaires were used to collect subject biographical information and data on subjective workload during each simulated casualty. For four of the five performance measures, no significant differences were found between groups led by high (25 to 114 months) and low (1 to 17 months as an SRO) experience SROs. However, crews led by low experience SROs tended to have significantly shorter task performance times than crews led by high experience SROs. The presence of the STA had no significant effect on overall team performance in responding to the four simulated casualties. The FY84 experiments are a partial replication and extension of the FY83 experiment, but with PWR operators and simulator

  8. Data analysis for electronic experiments

    International Nuclear Information System (INIS)

    In this lecture I schell attempt to cover the principal off-line software aspects in electronic experiments. Of course, this is too ambitious an undertaking for two reasons: Firstly the field is vast, and some important aspect will certainly have escaped my attention. Secondly, the choice of methods, features, algorithms, and packages presented will be biased through my personal opinion and experience, although to some extent it is influenced as well by the opinion and experience of my colleagues, who, like myself, are working in this field at CERN. Therefore, beware. Whenever I shall claim something to be evident, a matter of experience -- a fact --it ain't necessarily so. On the other hand, it will not be entirely wrong, since our experience is based on something like 30 experiments in high-energy physics using electronic for other people, and although these people are of course misled, one has to admit their existence. (orig.)

  9. Mystical experience in the lab

    DEFF Research Database (Denmark)

    Andersen, Marc Nicklas; SchjØdt, Uffe

    2014-01-01

    We review previous attempts to study mystical experience and point to problems inherent to certain methodologies. Focusing on studies that use controlled environments we advocate taking an experimental approach to mysticism. To demonstrate the viability of this approach, we report findings from a new study that probes the potential for eliciting mystical experiences in the laboratory. We find that our experimental paradigm is indeed enough to elicit mystical experiences. Based on subjective ratings of experience, rich descriptions from interviews, and data obtained three months after the study, our data indicate that the experiences reported by the participants had a high degree of authenticity and had lasting effects in terms of memory and attribution. These findings demonstrate that at least some forms of mystical experience can be studied in a controlled environment. Prospects and limitations for the experimental approach to mysticism are discussed.

  10. Tree manipulation experiment

    Science.gov (United States)

    Nishina, K.; Takenaka, C.; Ishizuka, S.; Hashimoto, S.; Yagai, Y.

    2012-12-01

    Some forest operations such as thinning and harvesting management could cause changes in N cycling and N2O emission from soils, since thinning and harvesting managements are accompanied with changes in aboveground environments such as an increase of slash falling and solar radiation on the forest floor. However, a considerable uncertainty exists in effects of thinning and harvesting on N2O fluxes regarding changes in belowground environments by cutting trees. To focus on the effect of changes in belowground environments on the N2O emissions from soils, we conducted a tree manipulation experiment in Japanese cedar (Cryptomeria japonica) stand without soil compaction and slash falling near the chambers and measured N2O flux at 50 cm and 150 cm distances from the tree trunk (stump) before and after cutting. We targeted 5 trees for the manipulation and established the measurement chambers to the 4 directions around each targeted tree relative to upper slope (upper, left, right, lower positions). We evaluated the effect of logging on the emission by using hierarchical Bayesian model. HB model can evaluate the variability in observed data and their uncertainties in the estimation with various probability distributions. Moreover, the HB model can easily accommodate the non-linear relationship among the N2O emissions and the environmental factors, and explicitly take non-independent data (nested structure of data) for the estimation into account by using random effects in the model. Our results showed tree cutting stimulated N2O emission from soils, and also that the increase of N2O flux depended on the distance from the trunk (stump): the increase of N2O flux at 50 cm from the trunk (stump) was greater than that of 150 cm from the trunk. The posterior simulation of the HB model indicated that the stimulation of N2O emission by tree cut- ting could reach up to 200 cm in our experimental plot. By tree cutting, the estimated N2O emission at 0-40 cm from the trunk doubled (the % increase of N2O emission; 54% to 213%; 95% C.I.) condition when soil temperature was 25oC and WFPS was 60%. The posterior simulation of the model estimated that 10% logging caused a 20% (15% to 24%; 95% CI) increase N2O emission in our study site (2000 trees ha-1) for the only tree cutting effects during the measurement period (about 160 day). On the basis of our findings, the belowground environmental changes by logging management would considerably contribute the stimulation of N2O emission.

  11. Experiments on tokamak ADITYA

    International Nuclear Information System (INIS)

    Full text: It is well known that the Greenwald limit is in reality a limit on edge particle confinement that leads to loss of edge thermal equilibrium. While the radiative collapse is relatively well understood, questions remain about the exact dynamics of convectively driven collapse. More specifically, the scaling of edge temperature with edge density needs to be better understood. We report experimental results from ADITYA to study such a scaling under various operating conditions. Specifically we have actively modified the edge profiles by heating/cooling/gas puffing/impurity injection etc. as well as wall conditioning to examine in detail the density limit scaling. In another set of experiments, we look at thermal quenches and find evidence for two different types of thermal quenches. In one kind saw tooth oscillations disappear while the overriding oscillation (m=1) continues in the SXR plasma temperature data at the time of the thermal quench which occurs in a few milliseconds and the quench recovers in similar time scale to the earlier level of SXR signal. In another type of discharge, it is observed that the signal does not recover till the end of the plasma discharge. To understand the difference between the two types, we have correlated data from different diagnostics. On the basis of that we speculate that in the first type energy ejected out of the m=1 surface redistributes within the m=2 surface. Island size is still within the LCFS in these cases. In thtill within the LCFS in these cases. In the second type, on the other hand, the island size and plasma position are such that the surfaces are destroyed and the energy is leaked out and hence the quench does not recover. Slight increase in the loop voltage signal is observed in this case. Linear mode analysis shows a much faster growth rate for the quench data in type II case. Finally we also observe good correlation between data obtained from soft X-ray and Mirnov coils. Details of these experimental findings with theoretical calculations and interpretations will be presented in this paper. (author)

  12. Rotating Plasma Experiments

    International Nuclear Information System (INIS)

    Experiments have been performed in a rotating plasma device with a curved magnetic field, having large mirror ratios and radial ratios. The results are as follows: (1) The plasma is created by a discharge applied across the magnetic field. When the power input is below a certain level, there is only a partially ionized plasma with a small kinetic energy stored in its rotation. However, as soon as the power input exceeds a certain critical level, a burnout takes place of the neutral gas in the confinement region, and a fully ionized plasma is created. It has a density of about 2 x 1021 m-3. (2) The momentum balance of the fully ionized plasma is explained by classical theory. It is determined by transverse losses due to viscous drag between the plasma and the electrodes, and by longitudinal losses due to particles escaping to the end insulators. When the plasma is released from its energy source the velocity of rotation decays exponentially. The corresponding time constant increases with the magnetic field and reaches 310 ?sec. Further, the time constant of the azimuthal current is half as-large as that of the velocity. Thus, there is a radial balance of forces at a ratio of about 0.1 between the centrifugal and magnetic ''pressures''. (3) The voltage across the plasma cannot exceed a certain critical value. This limitation can be explained by a plasma-insulator interaction. It takes place when the plasma velocity near the insulator surfaces reacvelocity near the insulator surfaces reaches the value vc = (2e?i/mi)½, where ?i is the ionization potential of the gas. (4) The losses mentioned in (2) are small, but losses which possibly arise from instabilities and anomalous diffusion are even smaller and cannot be distinguished from the former. High speed photography and electric probe measurements show that the outer plasma boundary is separated from the vessel wall and is sharply defined within 2 mm. The expansion of this boundary by the centrifugal force is reversible and agrees with classical theory. A short circuit of flute-type disturbances by the cathode is probably important. (author)

  13. Narrative experiments and imaginative inquiry

    OpenAIRE

    Noel Gough

    2008-01-01

    In this semi-autobiographical essay I explore the representation and performance of imaginative inquiry practices in educational inquiry and other disciplines, with particular reference to 'thought experiments' in the natural sciences and comparable practices in the arts, humanities, and social sciences. I share a number of experiences of writing as a mode of educational inquiry, with particular reference to narrative experiments inspired by Gilles Deleuze and Félix Guattari's figuration of ...

  14. Preceptorship: combining experience with research.

    Science.gov (United States)

    Nooe, Ashley; Kautz, Donald D

    2015-01-01

    Preceptors can help new graduate nurses face the challenges of the first year of practice in critical care. The authors have used research and personal experience to develop an approach to help the preceptor and new nurse make the most of the preceptor experience. Our hope is that the preceptor will find the experience rewarding, and the new nurse will come to love critical care nursing. PMID:25650492

  15. Experiments at CERN in 1986

    International Nuclear Information System (INIS)

    This report is a compilation of the current experimental programme at CERN. The experiments listed are being performed at one of the following machines: The Super Proton Synchrotron, the Proton Synchrotron and the Synchro-Cyclotron. The four experiments planned for the Large Electron Positron machine are also listed. Each experiment is briefly described and a schematic layout of its apparatus is included, together with lists of participants and institutions. (orig./HSI)

  16. The theory of experience orientation

    DEFF Research Database (Denmark)

    Jensen, Jesper Legaard

    This paper describes the theory of experience orientation, which builds on the division of experiences in two categories: Goal-oriented and Omni-oriented. The theory comes from preliminary studies of userexperiences in a work-context, where I have found this distinction to be beneficial. In this paper I explain the theory behind it and the practical application of such a distinction when designing for an experience.

  17. Gender differences in economic experiments

    OpenAIRE

    Ju?rgen Ergun, Selim; Garci?a-mun?oz, Teresa; Fernanda Rivas, Mari?a

    2010-01-01

    This paper reviews the experimental economics literature on gender differences concerning four salient subjects: risk aversion, trust, deception and leadership. We review both experiments conducted in a laboratory and field experiments. We summarize very briefly the main characteristics of the experiments we review and point out the main results related to gender differences. The vast majority of the articles we have revised document gender differences in behavior; differences which could be ...

  18. ORKA: The Golden Kaon Experiment

    OpenAIRE

    Worcester, E. T.; Collaboration, For The Orka

    2012-01-01

    ORKA is a proposed experiment to measure the K+ -> pi+ nu nubar branching ratio with 5% precision using the Fermilab Main Injector high intensity proton source. The detector design is based on the BNL E787/E949 experiments, which detected seven candidate events. Two orders of magnitude improvement in sensitivity relative to the BNL experiments comes from enhancements to the beam line and the detector acceptance. Precise measurement of the K+ -> pi+ nu nubar branching ratio w...

  19. Experience and self-consciousness

    OpenAIRE

    Schear, Jk

    2009-01-01

    Does all conscious experience essentially involve self-consciousness? In his Subjectivity and Selfhood: Investigating the First-Person, Dan Zahavi answers "yes". I criticize three core arguments offered in support of this answer-a well-known regress argument, what I call the "interview argument," and a phenomenological argument. Drawing on Sartre, I introduce a phenomenological contrast between plain experience and self-conscious experience. The contrast challenges the thesis that conscious e...

  20. Proton Structure and PHENIX Experiment

    CERN Document Server

    Qiu, Jian-Wei

    2015-01-01

    We briefly summarize the important and critical roles that PHENIX Experiment has played in determining the proton's internal structure in terms of quarks and gluons, and their dynamics. Some pioneering measurements by PHENIX Experiment on the motion and polarization of quarks and gluons, as well as their correlations inside a fast moving proton are presented. Some future opportunities and potentials of PHENIX Experiment are also discussed.

  1. Enthusiastic Teachers, Vivid Experiments

    Science.gov (United States)

    Moore, John W.

    2000-04-01

    ascination with materials and chemical change is a hallmark of chemists, and it is also an important pedagogical tool. A fringe benefit of editing JCE is that I encounter so many nice people who send interesting and helpful communications. One of the first of these to cross my desk this year was from E. J. Behrman, who recommended that I read and call to your attention "Brilliant Light: A Chemical Boyhood" by Oliver Sacks, noted neurologist and author. It appeared in the December 20, 1999, issue of The New Yorker and is well worth your time and effort to find and read. Sacks's reminiscence of his boyhood interest in chemistry is fascinating. His obvious love of our science is inspiring. And he has expressed both in words that are brilliantly chosen and a joy to read. In a profile of Sacks that appeared in Chemical and Engineering News (January 10, 2000), Madeleine Jacobs relates that he is writing a book on his boyhood encounters with chemistry (to be published by Alfred A. Knopf). I am looking forward to that with great anticipation. During 1999 he also wrote an article on the periodic table in the New York Times Magazine (April 18) and an op-ed piece on chemistry sets in the New York Times (May 13). In the latter he describes how hard it is these days for a nonchemist, especially a young one, to obtain chemicals to experiment with. Chemistry sets are not what they used to be! Sacks's writings contain important messages for all of us who teach chemistry and all who are involved in piquing students' interest in our subject. A brief excerpt from his New Yorker article illustrates my point. I knew zinc--the dull, slightly bluish birdbath in the garden was made of zinc--and tin, from the heavy tinfoil in which sandwiches were wrapped for a picnic. My mother showed me that when tin or zinc was bent it uttered a special "cry." "It's due to deformation of the crystal structure," she said, forgetting that I was five and could not understand her--and yet her words made me want to know more. Fascination with materials and chemical change is a hallmark of chemists, and it is also an important pedagogical tool. Real substances have very interesting properties--ones that can excite students and spur them to greater achievement. Sacks's writing is full of such fascinating factoids. It inspires me to try to use them much more effectively to help students develop the curiosity and commitment that will help them learn. Everyday things, such as the startling cold of a diamond engagement ring when it touches one's lips, can illustrate otherwise tiresome topics like thermal conductivity far better than a table of data. Sacks was fortunate that his parents, both physicians, had the means and took the time to show him interesting phenomena and respond to his many questions, as did two uncles. In addition, his father's office was in their home, providing a broad range of interesting substances and solutions that enhanced his curiosity and experience. Few of our students have had such opportunities before they come to us, but we can resolve that they should not leave our classes without seeing and experiencing real chemistry that grabs their attention and interest. If we are to do this, we must be familiar with lots of chemical phenomena and realize how they can be applied effectively in our classrooms and laboratories. And we need to know which of them are appropriate for students to observe and interact with without violating rules of good sense and chemical safety. That's no mean feat, especially if our own backgrounds are much less rich than was Sacks's childhood--an extremely likely possibility. Formal education is important, but it is unreasonable to expect that it can provide all the knowledge that would be useful to any of us in our teaching. And new chemistry is discovered every day. Learning more and more chemistry and improving our teaching skills are processes that continually require our attention and effort. I hope that JCE con

  2. Experiments at CERN in 1977

    International Nuclear Information System (INIS)

    This report catalogues approved experiments at CERN and has been compiled as a guide to the status of the experimental research programme at the 400 GeV Proton Synchrotron (SPS), the Intersecting Storage Rings (ISR), the 25 GeV Proton Synchrotron (PS) and the Synchro-Cyclotron (SC). The schematic layouts of beams and experiments at the various machines are given in the beginning of the report and are followed by descriptive material on the experiments. In general, a short summary of each of the approved experiments is given with a description of the physics purpose, the apparatus employed, a list of the participants and the name of the collaboration. (Auth.)

  3. Psychology Experiments on the Internet

    Science.gov (United States)

    PsychExperiments is an extraordinary online cognitive and social psychology laboratory site developed with funding from the US Department of Education's Fund for the Improvement of Post-Secondary Education (FIPSE). Visitors, including faculty and students, can participate in interactive online experiments, download and analyze cumulative data from over 35 ongoing and completed experiments conducted over the last five years, and consult support materials in preparation for using or developing on-site experiments. Recently added experiments include Learning and Memory, Semantic Differential, Perception of Gender in Facial Features, the Be A Juror study, and a Wheel of Fortune study. The data are designed to be downloaded in Microsoft Excel spreadsheets, and participation in online experiments requires a Shockwave Authorware player. A link is also provided to a substantial chapter-by-chapter summary of the recently published Psychological Experiments on the Internet, edited by Michael H. Birnbaum, complete with links to data and experiment Websites relevant to each article. Psychology Experiments on the Internet is hosted by the University of Mississippi.

  4. Experiments at CERN in 1979

    International Nuclear Information System (INIS)

    The 1979 catalogue of approved experiments at CERN has been compiled as a guide to the status of the experimental research programme at the 400 GeV Proton Synchrotron (SPS), the Intersecting Storage Rings (ISR), the 25 GeV Proton Synchrotron (PS), and the Synchrocyclotron (SC). The schematic layouts of beams and experiments at the various machines are given in the beginning of the report and are followed by descriptive material on the experiments. In general, a short summary of each of the approved experiments is given, with a description of the physics purpose, the apparatus employed, a list of the participants and the name of the collaboration. (Auth.)

  5. OSMOSE experiment representativity studies.

    Energy Technology Data Exchange (ETDEWEB)

    Aliberti, G.; Klann, R.; Nuclear Engineering Division

    2007-10-10

    The OSMOSE program aims at improving the neutronic predictions of advanced nuclear fuels through measurements in the MINERVE facility at the CEA-Cadarache (France) on samples containing the following separated actinides: Th-232, U-233, U-234, U-235, U-236, U-238, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, Am-243, Cm-244 and Cm-245. The goal of the experimental measurements is to produce a database of reactivity-worth measurements in different neutron spectra for the separated heavy nuclides. This database can then be used as a benchmark for integral reactivity-worth measurements to verify and validate reactor analysis codes and integral cross-section values for the isotopes tested. In particular, the OSMOSE experimental program will produce very accurate sample reactivity-worth measurements for a series of actinides in various spectra, from very thermalized to very fast. The objective of the analytical program is to make use of the experimental data to establish deficiencies in the basic nuclear data libraries, identify their origins, and provide guidelines for nuclear data improvements in coordination with international programs. To achieve the proposed goals, seven different neutron spectra can be created in the MINERVE facility: UO2 dissolved in water (representative of over-moderated LWR systems), UO2 matrix in water (representative of LWRs), a mixed oxide fuel matrix, two thermal spectra containing large epithermal components (representative of under-moderated reactors), a moderated fast spectrum (representative of fast reactors which have some slowing down in moderators such as lead-bismuth or sodium), and a very hard spectrum (representative of fast reactors with little moderation from reactor coolant). The different spectra are achieved by changing the experimental lattice within the MINERVE reactor. The experimental lattice is the replaceable central part of MINERVE, which establishes the spectrum at the sample location. This configuration leads to a uniform well-behaved system so that the reactor configuration is in the fundamental mode. In fact, an important property of the oscillation experiments performed in the OSMOSE program is that the neutron flux at the sample location has reached the asymptotic fundamental mode of the MINERVE lattice. This property allows the use of simple spatial methods for the analysis (e.g. a lattice code with axial buckling representing the leakage), without loss of accuracy. The computational challenge is then reduced to the need of an appropriate cross-section processing and of accurate resonance shielding algorithms. In the present study, calculations have been performed to investigate the similarity of the flux spectra at the sample position of different OSMOSE configurations with the neutron energy distributions characterizing existing thermal and fast reactors proposed under the advanced reactor programs Gen-IV, GNEP and NGNP.

  6. The GLACE-2 Experiment

    Science.gov (United States)

    Koster, Randal

    2009-01-01

    A major motivation for the study of the coupled land-atmosphere system is the idea that soil moisture anomalies may affect future meteorological variables through their effects on future surface energy and water budgets. If true, the accurate initialization of soil moisture in a subseasonal or seasonal forecast system may improve forecast skill, making the forecast products more valuable to society. The Global Land-Atmosphere Coupling Experiment (GLACE-2) project is examining, with a wide variety of models, the degree to which subseasonal (out to two months) precipitation and air temperature forecasts improve through the realistic initialization of soil moisture. For the first time ever, a global consensus should emerge regarding the value of land initialization for forecasts, perhaps motivating national forecast centers to make full use of land moisture initialization in their operations. Participants in GLACE-2 perform two series of forecasts, each consisting of 100 2-month forecast ensembles (10 members per ensemble) covering ten boreal spring and summer start-dates in each of the years 1986-1995. Series 1 utilizes realistic land surface state initialization, provided through a decadal offline simulation using realistic meteorological forcing, as provided by the Global Soil Wetness Project - Phase 2 (GSWP-2), a research activity of the Global Land-Atmosphere System Study (GLASS) of GEWEX. Series 2 is identical to Series 1 in every way except for the fact that it does not benefit from realistic land state initialization. Through the comparison of Series 1 and 2, we isolate the impact of land initialization on the forecasts. Optional extensions to these base runs include forecasts covering additional years, using alternative meteorological forcing for the land initialization. To date, GLACE-2 has garnered participation from eleven modeling groups, covering 13 atmospheric models. Analysis of available results is already well underway, both at the individual modeling institutions and at the NASA Goddard Space Flight Center, which is coordinating the project. Analysis focuses on two elements of the forecast problem: (i) the quantification of model-specific "predictability" (i.e., the degree to which simulated atmospheric chaos will foil a forecast, even under the assumption of"perfect" model physics, initialization data, and validation data) and its decay with time; and (ii) the quantification of forecast skill, determined through a comparison of predicted precipitation and air temperature against observations. Indeed, the specific contribution of land initialization to both these elements is isolated through a comparison of the Series 1 and 2 forecasts. We examine the two elements at four different forecast leads: 1-15, 16-30, 31-45, and 46-60 days. Statistics-based approaches for enhancing skill (essentially using observational statistics to reduce the impact of the models' climatic biases) are also tested. In the present talk, we provide an update of progress in GLACE-2, featuring quantifications of predictability and forecast skill for a number of the participating models and providing a "first look" at the desired consensus view of land impacts on subseasonal forecasts.

  7. Greenland meltwater experiments

    Science.gov (United States)

    Olsen, S. M.; Schmith, T.

    2012-04-01

    We explore the climatic response to additional Greenland Ice Sheet melting in the EC-EARTH coupled climate model. As reference runs, we use an ensemble of two simulations from 1850 to present with historic forcing. For each of these we pick the years 1935,1950 and 1965, respectively as initial conditions for perturbed experiments with an additional freshwater forcing of 0.1 Sv distributed uniformly around Greenland , a plausible value in the upper end of future Greenland ice sheet melt estimates. We find give no evidence for abrupt transitions associated with tipping points in the Atlantic overturning circulation and mid-latitude heat transport. In fact, modelled decline in overturning in response to the additional forcing does not project onto a comparable reduction in the mid latitude (36N) ocean heat transport. This result points to an ongoing watermass transformation in the subpolar region and Arctic Mediterranean as a whole and a continued thermal mode of operation of the overturning. At the northern boundary of the subpolar region (60N) the response in overturning shows a contrasting increase in intensity along with an increase in heat transport. Whereas the latter may be expected as a result of freshwater capping and subsurface warming in the subpolar region, the increased overturning at 60N is more difficult to explain. In order to assess this in more detail we have quantified the individual thermohaline exchange components of light and dense water masses across the Greenland-Scotland Ridge. We find that the intensified overturning at 60N is reflected in increased transports of light Atlantic Water to the Nordic Seas. However, the vertical, thermohalinie overturning loop is not equally strengthened. On the contrary, we model a decline in the denser parts of the outflow, the overflows in the Denmark Strait and Faroe Bank Channel and a strong increase in the polar outflow in the Denmark Strait. We observe a gradual transition from a vertical mode of operation with 70% of the Atlantic Inflow being transformed to dense overflow towards a state approaching an equal contribution of the vertical and horizontal thermohaline circulation loops after 20-30 years. Along with this transition we find an overall decline in the intensity of the barotropic gyre circulation of the Nordic Seas reflecting in part a reduced winter deepening of the mixed layer. Thus, we may seek to explain this transition as a result of more efficient lateral mixing of the Atlantic Inflow during its cyclonic circulation around the basin margins. Finally, we show that the associated atmospheric response is a standing Rossby wave train reflected in the mean tropospheric thickness anomaly field with a through over Labrador Sea, a ridge over Barents Sea and a minor through over eastern Europe. Corresponding anomalies are found in the surface temperature field.

  8. New experiments in gravitational physics

    OpenAIRE

    Karim Munawar; Bokhari Ashfaque H.

    2014-01-01

    We propose experiments to examine and extend interpretations of the Einstein field equations. Experiments encompass the fields of astrophysics, quantum properties of the gravity field, gravitational effects on quantum electrodynamic phenomena and coupling of spinors to gravity. As an outcome of this work we were able to derive the temperature of the solar corona.

  9. High School Physics Teaching Experience

    Science.gov (United States)

    Physics Teacher, 2012

    2012-01-01

    We divided our high school physics teaching experience into three groups: first year teaching physics, second or third year teaching physics, and four or more years of experience teaching physics. We did this because everything is new for teachers teaching a course for the first time. The second and third time through the course, teachers learn…

  10. Tank Pressure Control Experiment (TPCE)

    Science.gov (United States)

    Bentz, Mike

    The Tank Pressure Control Experiment (TPCE) is a small self-contained STS payload designed to test a jet mixer for cryogenic fluid pressure control. Viewgraphs are presented that describe project organization, experiment objectives and approach, risk management, payload concept and mission plan, and initial test data.

  11. Experiences on IGSCC crack manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Veron, P. [Equipos Nucleares, S.A., Maliano (Spain)

    1997-02-01

    The author presents his experience in manufacturing IGSCC realistic defects, mainly in INCONEL 600 MA Steam Generator Tubes. From that experience he extracts some knowledge about this cracking (influence of chemistry in the environment, stress state, crack growth rate, and occurrence in laboratory condition of break before leak).

  12. A Classroom Experiment on Banking

    Science.gov (United States)

    Kassis, Mary Mathewes; Hazlett, Denise; Ygosse Battisti, Jolanda E.

    2012-01-01

    This classroom experiment uses double oral auction credit markets to illustrate the role of banks as financial intermediaries. The experiment demonstrates how risk affects market interest rates in the presence of asymmetric information. It provides fodder for a discussion of the moral-hazard problem of deposit insurance and its impact on depositor…

  13. Age Differences in Mystical Experience.

    Science.gov (United States)

    Levin, Jeffrey S.

    1993-01-01

    Examined age differences in mystical experiences. According to 1988 General Social Survey (n=1,481) mystical experiences were somewhat more common in 1988 than in 1973, and deja vu, clairvoyance, and composite mysticism scores had increased with successively younger age cohorts. Private and subjective religiosity were positively related to overall…

  14. Status of rare decay experiments

    International Nuclear Information System (INIS)

    Some results are given for rare muon decay experiments currently running. Also, plans are discussed for rare kaon decay experiments. Some of the events sought come from processes which violate lepton flavor conservation. Several apparatuses used in the search are described. 35 references

  15. Experiments with a DC Motor

    Science.gov (United States)

    Kraftmakher, Yaakov

    2010-01-01

    Experiments with an electric motor provide good opportunity to demonstrate some basic laws of electricity and magnetism. The aim of the experiments with a low-power dc motor is to show how the motor approaches its steady rotation and how its torque, mechanical power and efficiency depend on the rotation velocity. The tight relationship between the…

  16. Experimenting with Inexpensive Plastic Springs

    Science.gov (United States)

    Perez, Leander; Marques, Adriana; Sánchez, Iván

    2014-01-01

    Acommon undergraduate laboratory experience is the determination of the elastic constant of a spring, whether studying the elongation under a static load or studying the damped harmonic motion of the spring with a suspended mass. An alternative approach to this laboratory experience has been suggested by Menezes et al., aimed at studying the…

  17. Pharmacology Experiments on the Computer.

    Science.gov (United States)

    Keller, Daniel

    1990-01-01

    A computer program that replaces a set of pharmacology and physiology laboratory experiments on live animals or isolated organs is described and illustrated. Five experiments are simulated: dose-effect relationships on smooth muscle, blood pressure and catecholamines, neuromuscular signal transmission, acetylcholine and the circulation, and…

  18. An Undergraduate Column Chromatography Experiment.

    Science.gov (United States)

    Danot, M.; And Others

    1984-01-01

    Background information, list of materials needed, and procedures used are provided for an experiment designed to introduce undergraduate students to the theoretical and technical aspects of column chromatography. The experiment can also be shortened to serve as a demonstration of the column chromatography technique. (JN)

  19. KEKB and the BELLE experiment

    International Nuclear Information System (INIS)

    KEKB, the Japanese asymmetric e+e- collider B-factory project, and BELLE, the international experiment at KEKB, are reviewed. Emphasis is placed on the differences between KEKB and BELLE and the other competing projects, SLAC-B (PEPII) and the BaBar experiment. (orig.)

  20. Experimenting with Brass Musical Instruments.

    Science.gov (United States)

    LoPresto, Michael C.

    2003-01-01

    Describes experiments to address the properties of brass musical instruments that can be used to demonstrate sound in any level physics course. The experiments demonstrate in a quantitative fashion the effects of the mouthpiece and bell on the frequencies of sound waves and thus the musical pitches produced. (Author/NB)

  1. Experience economy brimming with potential

    DEFF Research Database (Denmark)

    SØrensen, Flemming; Sundbo, Jon

    In these days of economic uncertainty, businesses ought to make better use of recent research into the experience economy. Perhaps co-creation and individualisation can save us from the crisis, argue the editors of a new book about the latest research into the experience economy.

  2. An Experiment on Wind Energy

    Science.gov (United States)

    Lombardo, Vincenzo; Fiordilino, Emilio; Gallitto, Aurelio Agliolo; Aglieco, Pasquale

    2012-01-01

    We discuss an experiment on wind energy performed with home-made apparatus. The experiment reproduces a laboratory windmill, which can pump water from a lower level to a higher one. By measuring the gain of the gravitational potential energy of the pumped water, one can determine the power extracted from the wind. The activity was carried out with…

  3. DHS Research Experience Summary

    Energy Technology Data Exchange (ETDEWEB)

    Venkatachalam, V

    2008-10-24

    I learned a great deal during my summer internship at Lawrence Livermore National Laboratory (LLNL). I plan to continue a career in research, and I feel that my experience at LLNL has been formative. I was exposed to a new area of research, as part of the Single Particle Aerosol Mass Spectrometry (SPAMS) group, and I had the opportunity to work on projects that I would not have been able to work on anywhere else. The projects both involved the use of a novel mass spectrometer that was developed at LLNL, so I would not have been able to do this research at any other facility. The first project that Zachary and I worked on involved using SPAMS to detect pesticides. The ability to rapidly detect pesticides in a variety of matrices is applicable to many fields including public health, homeland security, and environmental protection. Real-time, or near real-time, detection of potentially harmful or toxic chemical agents can offer significant advantages in the protection of public health from accidental or intentional releases of harmful pesticides, and can help to monitor the environmental effects of controlled releases of pesticides for pest control purposes. The use of organophosphate neurotoxins by terrorists is a possibility that has been described; this is a legitimate threat, considering the ease of access, toxicity, and relatively low cost of these substances. Single Particle Aerosol Mass Spectrometry (SPAMS) has successfully been used to identify a wide array of chemical compounds, including drugs, high explosives, biological materials, and chemical warfare agent simulants. Much of this groundbreaking work was carried out by our group at LLNL. In our work, we had the chance to show that SPAMS fulfills a demonstrated need for a method of carrying out real-time pesticide detection with minimal sample preparation. We did this by using a single particle aerosol mass spectrometer to obtain spectra of five different pesticides. Pesticide samples were chosen to represent four common classes of pesticides that are currently used in the US. Permethrin (a pyrethrin insecticide), dichlorvos and malathion (organophosphates), imidacloprid (a chloronicotinyl pesticide), and carbaryl (a carbamate) were selected for analysis. Samples were aerosolized either in water (using a plastic nebulizer) or in ethanol (using a glass nebulizer), and the particles entered the SPAMS instrument through a focusing lens stack. The particles then passed through a stage with three tracking lasers that were used to determine each particle's velocity. This velocity was used to calculate when to fire a desorption/ionization (D/I) laser in order to fragment the particle for analysis in a dual polarity time of flight mass spectrometer. Signals were digitized, and then analyzed using LLNL-developed software. We obtained chemical mass spectral signatures for each pesticide, and assigned peaks to the mass spectra based on our knowledge of the pesticides chemical structures. We then proved the robustness of our detection method by identifying the presence of pesticides in two real-world matrices: Raid{trademark} Ant Spray and a flea collar. To sample these, we simply needed to direct aerosolized particles into the SPAMS instrument. The minimal sample preparation required makes SPAMS very attractive as a detector. Essentially, we were able to show that SPAMS is a reliable and effective method for detecting pesticides at extremely low concentrations in a variety of matrices and physical states. The other project that I had the opportunity to be a part of did not involve data collection in the lab; it consisted of analyzing a large amount of data that had already been collected. We got to look at data collected over the course of about two months, when the SPAMS instrument was deployed to a public place. The machine sampled the air and collected spectra for over two months, storing all the spectra and associated data; we then looked at an approximately two-month subset of this data to search for patterns in the types of particles being detected. Essentially,

  4. The MuCap Experiment

    International Nuclear Information System (INIS)

    Muon capture on the proton is sensitive to the weak pseudoscalar form factor, gp, one of the basic parameters characterizing the nucleon electroweak charged-current interaction. There is a precise theoretical prediction for gp based on chiral symmetry of QCD, yet the results of past experiments are controversial: they are dependent on a poorly-known, mu-molecular kinetic parameter, and there is no point of mutual agreement between theory and all experiments. The goal of the MuCap experiment is to clarify the situation by measuring the rate of muon capture on the free proton to 1%, which determines gp to 6%, higher precision than achieved in previous experiments and without ambiguities in the interpretation. This talk will cover the motivation for and design of the MuCap experiment, first physics results from the new measurement, and improvements toward the final precision goal.

  5. Status of neutrino mass experiments

    International Nuclear Information System (INIS)

    In 1980 two experiments ignited a fertile field of research the determination of the neutrino masses. Subsequently, over 35 experiments using a variety of techniques have probed or are probing this question. Primarily I will discuss electron antineutrino (hereafter referred to as neutrino) mass experiments. However, let me begin in Section I to discuss astronomical and terrestrial observations which motivated these experiments. In Section II, I will quote limits from muon and tau mass determinations. These limits are more thoroughly discussed in other papers. I will continue by describing the four approaches used to measure the electron neutrino mass. In Section III, tritium beta decay mass determinations will be reviewed. This section includes a general summary of previous experimental results, and discussion of the major ongoing experiments. Section IV offers concluding remarks. 24 refs., 24 figs

  6. TRACY transient experiment databook. 1) Pulse withdrawal Experiment

    International Nuclear Information System (INIS)

    This is a databook of TRACY ''pulse withdrawal'' experiments. TRACY is a reactor to perform supercritical experiments using low-enriched uranyl nitrate aqueous solution. The excess reactivity of TRACY is 3$ at maximum, and it is inserted by feeding the solution to a core tank or by withdrawing a control rod, which is called as the transient rod, from the core. In the pulse withdrawal experiment, the supercritical experiment is initiated by withdrawing the transient rod pneumatically from the core in about 0.2s. The data in the present databook consist of datasheets and graphs. Experimental conditions and typical values of measured parameters are tabulated in the datasheet. In the graph, power, pressure, and temperature profiles are plotted. Those data are useful for the investigation of criticality accidents with fissile solutions, and for validation of criticality accident analysis codes. (author)

  7. TRACY transient experiment databook. 2) ramp withdrawal experiment

    International Nuclear Information System (INIS)

    This is a databook of TRACY ''ramp withdrawal'' experiments. TRACY is a reactor to perform supercritical experiments using low-enriched uranyl nitrate aqueous solution. The excess reactivity of TRACY is 3$ at maximum, and it is inserted by feeding the solution to a core tank or by withdrawing a control rod, which is called as the transient rod, from the core. In the ramp withdrawal experiment, the supercritical experiment is initiated by withdrawing the transient rod from the core in a constant speed using a motor drive system. The data in the present databook consist of datasheets and graphs. Experimental conditions and typical values of measured parameters are tabulated in the datasheet. In the graph, power and temperature profiles are plotted. Those data are useful for the investigation of criticality accidents with fissile solutions, and for validation of criticality accident analysis codes. (author)

  8. Experiments at CERN in 1985

    International Nuclear Information System (INIS)

    This book is a compilation of the current experimental program at CERN. The experiments listed are being performed at one of the following machines: the Super Proton Synchrotron (SPS), the Proton Synchrotron (PS) and the Synchro-Cyclotron (SC). The four experiments to be done by means of the Large Electron Positron machine (LEP) are also listed. The schematic layouts of beams and experiments at the various machines are given in the beginning of the report. The experiment goals and methods are briefly described and a schematic layout of the apparatus is included. Lists of participants and their institutions are also given. The status of the experiments (preparation, data-taking, completed) corresponds to the situation as of 1st November, 1985. ''Completed'' means only that data-taking is finished, not necessarily the analysis of the results; this status is kept for two years and then the experiment is removed from the catalogue. A complete list of all experiments published in this book since 1975 is given at the end of the catalogue. (orig./HSI)

  9. Customer Experience Management in Retailing

    Directory of Open Access Journals (Sweden)

    Kamaladevi B

    2010-01-01

    Full Text Available Survival of fittest & fastest is the mantra of today,s business game. To compete successfully in this business era, the retailer must focus on the customer,s buying experience. To manage a customer,s experience, retailers should understand what "customer experience" actually means. Customer Experience Management is a strategy that focuses the operations and processes of a business around the needs of the individual customer. It represents a strategy that results in a win-win value exchange between the retailer and its customers. The goal of customer experience management is to move customers from satisfied to loyal and then from loyal to advocate. This paper focuses on the role of macro factors in the retail environment and how they can shape customer experiences and behaviors. Several ways (e.g., Brand, Price, Promotion, Supply Chain Management, Location, Advertising,Packaging & labeling, Service Mix, and Atmosphere) to deliver a superior customer experience are identified which should result in higher customer satisfaction, more frequent shopping visits, larger wallet shares, and higher profits.

  10. Handbook on the Experience Economy

    DEFF Research Database (Denmark)

    2013-01-01

    This illuminating Handbook presents the state-of-the-art in the scientific field of experience economy studies. It offers a rich and varied collection of contributions that discuss different issues of crucial importance for our understanding of the experience economy. Each chapter reflects diverse scientific viewpoints from disciplines including management, mainstream economics and sociology to provide a comprehensive overview. The Handbook is divided into three subsections to explore progression in the scientific field of experience economy studies. The first section focuses on fundamental debates surrounding the nature and importance of the experience economy. The second section presents more specific topics including innovation, networks and the design of experiences. Finally, the last section explores issues such as cultural events, cuisine, theatre and video games. Moreover, the Handbook gives an insight into how receivers react to experiential elements of experience economy studies. An innovative presentation of experience economics, this is a remarkable collection of new theory and analyses. This book will prove an invaluable resource to researchers and students in management, marketing, psychology and economics

  11. Middeck 0-gravity dynamics experiment: Fluid slosh experiments

    Science.gov (United States)

    Vanschoor, Marthinus C.

    1992-01-01

    Viewgraphs on the Middeck 0-gravity Dynamics Experiment fluid slosh experiments are presented. Graphs of frequency versus planar slosh force and planar slosh force phase angle are provided for the following conditions: silicone oil in a flat bottom tank; silicon oil in a 3.1 cm diameter flat bottom tank; water in a flat bottom tank for earth; and water in a 3.1 cm diameter flat bottom tank.

  12. The BRAHMS experiment at RHIC

    International Nuclear Information System (INIS)

    The BRAHMS experiment at RHIC was conceived to pursue the understanding of nuclear matter under extreme conditions by detailed measurements of charged hadrons over the widest possible range of rapidity and transverse momentum. The experiment consists of two spectrometers with complementary charged hadron detection capabilities as well as a series of global detectors for event characterization. A series of tracking detectors, time-of-flight arms and Cherenkov detectors enables momentum determination and particle identification over a wide range of rapidity and transverse momentum. Technical details and performance results are presented for the various detector subsystems. The performance of the entire system working together is shown to meet the goals of the experiment

  13. AGS experiments - 1994, 1995, 1996

    International Nuclear Information System (INIS)

    This report contains the following information on the Brookhaven AGS Accelerator complex: FY 1996 AGS schedule as run; FY 1997 AGS schedule (working copy); AGS beams 1997; AGS experimental area FY 1994 physics program; AGS experimental area FY 1995 physics program; AGS experimental area FY 1996 physics program; AGS experimental area FY 1997 physics program (in progress); a listing of experiments by number; two-phage summaries of each experiment begin here, also ordered by number; listing of publications of AGS experiments begins here; and listing of AGS experimenters begins here

  14. Narrative experiments and imaginative inquiry

    Scientific Electronic Library Online (English)

    Noel, Gough.

    2008-08-01

    Full Text Available In this semi-autobiographical essay I explore the representation and performance of imaginative inquiry practices in educational inquiry and other disciplines, with particular reference to 'thought experiments' in the natural sciences and comparable practices in the arts, humanities, and social scie [...] nces. I share a number of experiences of writing as a mode of educational inquiry, with particular reference to narrative experiments inspired by Gilles Deleuze and Félix Guattari's figuration of the rhizome a process characterised as rhizosemiotic play and demonstrate the generativity of intertextual readings of selected fictions in catalysing them.

  15. Sketching user experiences the workbook

    CERN Document Server

    Greenberg, Saul; Marquardt, Nicolai; Buxton, Bill

    2012-01-01

    In Sketching User Experiences: The Workbook, you will learn, through step-by-step instructions and exercises, various sketching methods that will let you express your design ideas about user experiences across time. Collectively, these methods will be your sketching repertoire: a toolkit where you can choose the method most appropriate for developing your ideas, which will help you cultivate a culture of experience-based design and critique in your workplace. Features standalone modules detailing methods and exercises for practitioners who want to learn and develop their sketching skills E

  16. AGS experiments - 1994, 1995, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1997-01-01

    This report contains the following information on the Brookhaven AGS Accelerator complex: FY 1996 AGS schedule as run; FY 1997 AGS schedule (working copy); AGS beams 1997; AGS experimental area FY 1994 physics program; AGS experimental area FY 1995 physics program; AGS experimental area FY 1996 physics program; AGS experimental area FY 1997 physics program (in progress); a listing of experiments by number; two-phage summaries of each experiment begin here, also ordered by number; listing of publications of AGS experiments begins here; and listing of AGS experimenters begins here.

  17. The BRAHMS experiment at RHIC

    Energy Technology Data Exchange (ETDEWEB)

    Adamczyk, M.; Antvorskov, L.; Ashktorab, K.; Asselta, K.; Baker, E.; Bearden, I.G.; Beavis, D.; Besliu, C.; Blyakhman, Y.; Brzychczyk, J.; Budick, B.; Boeggild, H.; Chasman, C.; Christensen, C.H.; Christiansen, P.; Cibor, J.; Debbe, R.; Diaz, H.; Dutka, L.; Engelhardt, J.; Gaardhoeje, J.J.; Grotowski, K.; Hagel, K. E-mail: hagel@comp.tamu.edu; Hammond, J.; Hansen, J.C.; Hansen, O.; Holm, A.; Holme, A.K.; Ito, H.; Jakobsen, E.; Jipa, A.; Joerdre, J.I.; Jundt, F.; Joergensen, C.E.; Justice, M.; Kajetanowicz, M.; Keutgen, T.; Kim, E.J.; Kotula, E.; Kozik, T.; Larsen, T.M.; Lindegaard, N.; Lee, J.H.; Lee, Y.K.; Loevhoeiden, G.; Majka, Z.; Makeev, A.; McBreen, E.; Murray, M.; Natowitz, J.; Nielsen, B.S.; Olchanski, K.; Olness, J.; Olsen, E.K.; Ouerdane, D.; Pearson, C.; Pena, K.; Phillips, D.; Planeta, R.; Rami, F.; Rasmussen, O.B.; Roehrich, D.; Samset, B.H.; Sanders, S.J.; Scheetz, R.A.; Soerensen, J.; Sosin, Z.; Staszel, P.; Thorsteinsen, T.F.; Tveter, T.S.; Videbaek, F.; Wada, R.; Westergaard, J.; Wieloch, A.; Zgura, I.S

    2003-03-01

    The BRAHMS experiment at RHIC was conceived to pursue the understanding of nuclear matter under extreme conditions by detailed measurements of charged hadrons over the widest possible range of rapidity and transverse momentum. The experiment consists of two spectrometers with complementary charged hadron detection capabilities as well as a series of global detectors for event characterization. A series of tracking detectors, time-of-flight arms and Cherenkov detectors enables momentum determination and particle identification over a wide range of rapidity and transverse momentum. Technical details and performance results are presented for the various detector subsystems. The performance of the entire system working together is shown to meet the goals of the experiment.

  18. The MINERvA Experiment

    Science.gov (United States)

    Harris, Deborah A.; Kopp, Sacha

    2011-10-01

    The MINERvA experiment is a dedicated cross-section experiment whose aim is to measure neutrino cross sections for inclusive and exclusive final states on several nuclei. The detector is fully commissioned and began running in March 2010. As a dedicated cross-section experiment, MINERvA has a particular need to know the incident neutrino flux: both the absolute level and the energy dependence. In these proceedings we describe the MINERvA detector, give an update on the experimental status, and discuss the means to determine the neutrino flux.

  19. Laser driven hydrodynamic instability experiments

    International Nuclear Information System (INIS)

    We have conducted an extensive series of experiments on the Nova laser to measure hydrodynamic instabilities in planar foils accelerated by x-ray ablation. Single mode experiments allow a measurement of the fundamental growth rates from the linear well into the nonlinear regime; multimode foils allow an assessment of the degree of mode coupling; and surface-finish experiments allow a measurement of the evolution of a broad spectrum of random initial modes. Experimental results and comparisons with theory and simulations are presented

  20. Status of the VIRGO experiment

    International Nuclear Information System (INIS)

    The VIRGO experiment was approved in September 1993. The goal of the French-Italian collaboration is to detect gravitational waves using a 3 km arm-length Michelson interferometer. The construction of this detector, which will be installed in Pisa, is under way. The experiment is planned to take data, in a large bandwidth (10 Hz-10 kHz), at the beginning of the year 2000 with nominal sensitivity close to h=3x10-23/?(Hz). The motivations, detection principle, main sources of noise and status of the experiment are presented. (orig.)

  1. The MINERvA Experiment

    International Nuclear Information System (INIS)

    The MINERvA experiment is a dedicated cross-section experiment whose aim is to measure neutrino cross sections for inclusive and exclusive final states on several nuclei. The detector is fully commissioned and began running in March 2010. As a dedicated cross-section experiment, MINERvA has a particular need to know the incident neutrino flux: both the absolute level and the energy dependence. In these proceedings we describe the MINERvA detector, give an update on the experimental status, and discuss the means to determine the neutrino flux.

  2. Experiments Planning, Analysis, and Optimization

    CERN Document Server

    Wu, C F Jeff

    2011-01-01

    Praise for the First Edition: "If you . . . want an up-to-date, definitive reference written by authors who have contributed much to this field, then this book is an essential addition to your library."-Journal of the American Statistical Association Fully updated to reflect the major progress in the use of statistically designed experiments for product and process improvement, Experiments, Second Edition introduces some of the newest discoveries-and sheds further light on existing ones-on the design and analysis of experiments and their applications in system optimization, robustness, and tre

  3. The latest general chemistry experiment

    International Nuclear Information System (INIS)

    This book lists thirty-nine experiments, safety regulations in the laboratory and method of experiments. The contents of experiments are hut and bolt for chemistry, separation of mixture, molecular weight and vapor density, solubility and fractional crystallization, colloid, pH and an indicator, properties of acid-base, reaction speed, synthesizing of Nylon, synthesizing of aspirin, reaction of alcohol, a natural substance ; extraction of caffeine, extraction of solvent, chromatography, refining water and water analysis and periodicity of the periodic table of the elements.

  4. AGS experiments: 1993 - 1994 - 1995

    Energy Technology Data Exchange (ETDEWEB)

    Depken, J.C.

    1996-04-01

    This report contains: FY 1995 AGS Schedule as Run; FY 1996-97 AGE Schedule (working copy); AGS Beams 1995; AGS Experimental Area FY 1993 Physics Program; AGS Experimental Area FY 1994 Physics Program; AGS Experimental Area FY 1995 Physics Program; AGS Experimental Area FY 1996 Physics Program (In progress); A listing of experiments by number; Two-page summaries of each experiment begin here, also ordered by number; Listing of publications of AGS experiments begins here; and Listing of AGS experimenters begins here. This is the twelfth edition.

  5. Narrative experiments and imaginative inquiry

    Directory of Open Access Journals (Sweden)

    Noel Gough

    2008-08-01

    Full Text Available In this semi-autobiographical essay I explore the representation and performance of imaginative inquiry practices in educational inquiry and other disciplines, with particular reference to 'thought experiments' in the natural sciences and comparable practices in the arts, humanities, and social sciences. I share a number of experiences of writing as a mode of educational inquiry, with particular reference to narrative experiments inspired by Gilles Deleuze and Félix Guattari's figuration of the rhizome a process characterised as rhizosemiotic play and demonstrate the generativity of intertextual readings of selected fictions in catalysing them.

  6. Experiments from Psychology and Neurology.

    Science.gov (United States)

    Hadley, William S.

    1996-01-01

    Data collection and analysis is often missing from the new curriculum reform textbooks. This article gives directions for data collection and data analysis for the Stroop Test and for a human-chain wrist experiment. (AIM)

  7. Cavitation Nuclei: Experiments and Theory

    DEFF Research Database (Denmark)

    MØrch, Knud Aage

    2009-01-01

    The Swedish astrophysicist and Nobel Prize winner Hannes Alfven said: Theories come and go - the experiment is here forever. Often a theory, which we set up to describe an observed physical phenomenon, suffers from the lack of knowledge of decisive parameters, and therefore at best the theory becomes insufficient. Contrary, the experiment always reveals nature itself, though at prevailing experimental conditions. With essential parameters being out of control and even maybe unidentified, apparently similar experiments may deviate way beyond our expectations. However, these discrepancies offer us a chance to reflect on the character of the unknown parameters. In this way non-concordant experimental results may hold the key to the development of better theories - and to new experiments for the testing of their validity. Cavitation and cavitation nuclei are phenomena of that character.

  8. Spina Bifida Experience: Developing Independence

    Medline Plus

    Full Text Available ... Independence Your browser does not support iFrames. Related Videos Spina Bifida Experience Managing Your Own Medical Care The Importance of Physical Activity More Videos Video Archive Find more NCBDDD videos to watch ...

  9. Holography Experiments on Optical Imaging.

    Science.gov (United States)

    Bonczak, B.; Dabrowski, J.

    1979-01-01

    Describes experiments intended to produce a better understanding of the holographic method of producing images and optical imaging by other optical systems. Application of holography to teaching physics courses is considered. (Author/SA)

  10. Ranchero Explosive Pulsed Power Experiments

    International Nuclear Information System (INIS)

    The authors are developing the Ranchero high explosive pulsed power (HEPP) system to power cylindrically imploding solid-density liners for hydrodynamics experiments. The near-term goal is to conduct experiments in the regime pertinent to the Atlas Capacitor bank. That is, they will attempt to implode liners of approximately50 g mass at velocities approaching 15 km/sec. The basic building block of the HEPP system is a coaxial generator with a 304.8 mm diameter stator, and an initial armature diameter of 152 mm. The armature is expanded by a high explosive (HE) charge detonated simultaneously along its axis. They have reported a variety of experiments conducted with generator modules 43 cm long and have presented an initial design for hydrodynamic liner experiments. In this paper they give a synopsis of their first system test, and a status report on the development of a generator module that is 1.4 m long

  11. Progress in Compact Toroid Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Dolan, Thomas James

    2002-09-01

    The term "compact toroids" as used here means spherical tokamaks, spheromaks, and field reversed configurations, but not reversed field pinches. There are about 17 compact toroid experiments under construction or operating, with approximate parameters listed in Table 1.

  12. The SuperCDMS Experiment

    CERN Document Server

    Schnee, R W; Attisha, M J; Bailey, C N; Baudis, L; Bauer, D A; Brink, P L; Brusov, P P; Bunker, R; Cabrera, B; Caldwell, D O; Chang, C L; Cooley, J; Crisler, M B; Cushman, P; Denes, P; Dragowsky, M R; Duong, L; Filippini, J; Gaitskell, R J; Golwala, S R; Grant, D R; Hennings-Yeomans, R; Holmgren, D; Huber, M E; Irwin, K; Lu, A; Mahapatra, R; Meunier, P; Mirabolfathi, N; Nelson, H; Ogburn, R W; Ramberg, E; Reisetter, A; Saab, T; Sadoulet, B; Sander, J; Seitz, D N; Serfass, B; Sundqvist, K M; Thompson, J P F; Yellin, S; Yoo, J; Young, B A

    2005-01-01

    WIMP-nucleon cross sections in the range 10^{-46} - 10^{-44} cm^2 may be probed by a ton-scale experiment with low energy thresholds and excellent discrimination of backgrounds. Because CDMS ZIP detectors are the most proven means of achieving such good discrimination, we intend to scale CDMS up to a ton detector mass. Development of this experiment, dubbed "SuperCDMS," is discussed. Improved analysis and optimization of the charge collection and athermal phonon sensors should improve surface-background rejection by over two orders of magnitude. Siting the SuperCDMS experiment deep enough to remove the fast neutron background, and reducing radioactive beta contamination near or on the detectors, should sufficiently reduce these otherwise troubling backgrounds. The primary challenge is making the experiment easy enough to build. We discuss methods of improving the detector manufacturability, removing the need for large-scale cryogenic detector testing, and allowing simplified infrastructure by using more sophi...

  13. Experience-Based Environmental Projects

    Science.gov (United States)

    Karin Kirk

    2009-01-01

    This module includes examples of projects, background information and teaching ideas to promote experiential environmental learning. These projects can get your students personally involved and invested, moving the learning experience from the classroom to their own lives.

  14. Neutrino oscillation experiments at LAMPF

    International Nuclear Information System (INIS)

    The high flux of neutrinos available at the LAMPF linac beam stop has been used to search for neutrino oscillations and neutrino disappearance. Past and present experiments at the facility are described

  15. Software for the LHCb experiment

    CERN Document Server

    Corti, Gloria; Belyaev, Ivan; Cattaneo, Marco; Charpentier, Philippe; Frank, Markus; Koppenburg, Patrick; Mato-Vila, P; Ranjard, Florence; Roiser, Stefan

    2006-01-01

    LHCb is an experiment for precision measurements of CP-violation and rare decays in B mesons at the LHC collider at CERN. The LHCb software development strategy follows an architecture-centric approach as a way of creating a resilient software framework that can withstand changes in requirements and technology over the expected long lifetime of the experiment. The software architecture, called GAUDI, supports event data processing applications that run in different processing environments ranging from the real-time high- level triggers in the online system to the final physics analysis performed by more than one hundred physicists. The major architectural design choices and the arguments that lead to these choices will be outlined. Object oriented technologies have been used throughout. Initially developed for the LHCb experiment, GAUDI has been adopted and extended by other experiments. Several iterations of the GAUDI software framework have been released and are now being used routinely by the physicists of...

  16. Ethylene Fueled Scramjet Combustion Experiments

    Directory of Open Access Journals (Sweden)

    Deng weixin

    2013-04-01

    Full Text Available Effect of fueling scheme on ethylene-fueled scramjet combustion performance is investigated based on pulse wind-tunnel direct connected experiment platform. Both numerical computing and optical diagnosing are employed to reveal the physical features of the scramjet model. The structure of combustor flow-field is uncovered by high speed schlieren experiments. Also the structure is product by numerical computing. The good agreement between experiment results and computing results validated the reliability of numerical computing. The first and second injector’s lean limits and rich limits for combustion are obtained through injecting characteristics experiments. The time evolution of flame with ethylene injected at different single injector are demonstrated by high speed videos. The flame stabilization mode for the first injector is “fuel injection jet-wake stabilized mode”, which for the second injector is “cavity stabilized mode”.

  17. Earth-based gravitational experiments

    International Nuclear Information System (INIS)

    Though historically, the solar system has been the principal area for testing theories of gravitation, we seem to be at the end of the golden age of solar-system tests (Reasenberg (1987)). The classical effects have now been measured within the limits of today's technology and further significant improvements cannot be expected in the near term. Future space-based experiments such as GPB, Gravity Probe B; LAGOS, Laser Gravitational-Wave Observatory in Space; and POINTS, the (proposed) Astrometric Optical Interferometer, await further technological as well as engineering developments and logistic (launch) support to deliver them to the laboratory of space. Recent years have seen, however, ground-based gravitational experimentation undergo a resurgence, driven by new experimental capabilities and by new theoretical work. The workshop on earth based gravitational experiments, summarized her, consisted of papers concerning ''fifth-force'' related experiments and other ground-based experiments. (author)

  18. The Second Generation HAPPEx Experiments

    International Nuclear Information System (INIS)

    The HAPPEx-II experiment at Thomas Jefferson National Accelerator Facility measures the parity-violating helicity-correlated scattering asymmetry APV in elastic electron scattering from 1H and 4He. These measurements explore the strange quark contributions to the electric and magnetic vector form factors GEs and GMs of the nucleon. An introduction to the experimental technique and preliminary results from an initial run of these experiments in summer 2004 are presented

  19. Estimating entanglement measures in experiments

    OpenAIRE

    Gu?hne, O.; Reimpell, M.; Werner, R. F.

    2006-01-01

    We present a method to estimate entanglement measures in experiments. We show how a lower bound on a generic entanglement measure can be derived from the measured expectation values of any finite collection of entanglement witnesses. Hence witness measurements are given a quantitative meaning without the need of further experimental data. We apply our results to a recent multi-photon experiment [M. Bourennane et al., Phys. Rev. Lett. 92, 087902 (2004)], giving bounds on the ...

  20. Missing experiments in quantum mechanics

    OpenAIRE

    Pardy, Miroslav

    2008-01-01

    We discuss the two-slit experiment and the Aharonov-Bohm (AB) experiment in the magnetic field. In such a case the electron moving in the magnetic field produces so called synchrotron radiation. In other words the photons are emitted from the points of the electron trajectory and it means that the trajectory of electron is visible in the synchrotron radiation spectrum. The axiomatic system of quantum mechanics does not enable to define the trajectory of the elementary partic...

  1. The Thing about gaming experience

    OpenAIRE

    Alaa, Alaqra

    2013-01-01

    Despite the increasing popularity in the academic and practical fields of digital gaming, little has been explored and documented about gaming experience, especially firsthand account. This study uses Bruno Latour’s concept of the Thing while investigating digital gaming experience from frequent gamers’ standpoint using focus groups methodology. Additionally in-depth interviews were conducted with developers in order to gain a business perspective on the status of digital games developmen...

  2. Status of the RICE Experiment

    International Nuclear Information System (INIS)

    The RICE experiment (Radio Ice Cherenkov Experiment) at South Pole consists of an array of dipole antennas designed to detect the coherent radio frequency radiation produced by neutrino-induced showers in the Antarctic ice. We report updated limits on the ultra-high energy neutrino flux, based on RICE data taken between 2000 an 2005. These limits also reflect improvements in Monte Carlo simulations and detector modeling

  3. Experiences with biomass in Denmark

    DEFF Research Database (Denmark)

    Gregg, Jay Sterling; Bolwig, Simon

    2014-01-01

    The Bioenergy Department in SENER have requested assistance with planning for the deployment of bioenergy (Biomass, biogas and waste incineration) in Mexico and information on Danish experiences with developing policy initiatives promoting bioenergy. This introduction to the Danish experiences with biomass use is compiled as preparation for SENER’s potential visit to Denmark in 2014. This report was prepared 19 June, 2014 by DTU System Analysis to Danish Energy Agency (DEA) as part of a frame contract agreement.

  4. A Spherical Plasma Dynamo Experiment

    OpenAIRE

    Spence, E. J.; Reuter, K.; Forest, C. B.

    2009-01-01

    We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast-flowing plasma will allow experimenters to explore systems with magnetic Reynolds numbers an order of magnitude larger than those accessible with liquid-metal experiments. The plasma is confined using a ring-cusp strategy and subject to a toroidal differentially rotating outer boundary condition. As proof of principle, we present magnetohydrod...

  5. Recent results from TRISTAN experiments

    International Nuclear Information System (INIS)

    The TRISTAN accelerator has been operated in 'High Luminosity Mode' since 1991. A maximum integrated luminosity per day of 1pb-1 was recorded. In addition, three experiments (TOPAZ, VENUS, and AMY) upgraded their detector systems for high statistics data. Physics results obtained by these experiments from 1991 are presented. Also, a future prospect for 'High Luminosity TRISTAN (300pb-1)' is mentioned. (author) 23 refs.; 8 figs.; 2 tabs

  6. STATUS OF THE CUORE EXPERIMENT

    OpenAIRE

    Claudia Tomei

    2013-01-01

    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te, a rare nuclear process that, if observed, would demonstrate the Majorana nature of the neutrino and enable measurements of the effective Majorana mass. The CUORE setup consists of an array of 988 tellurium dioxide crystals, operated as bolometers, with a total mass of about 200 kg of 130Te. The experiment is under construction at the Gran Sasso National Laboratory ...

  7. Popper's Experiment: A Modern Perspective

    OpenAIRE

    Tabish Qureshi

    2012-01-01

    Karl Popper had proposed an experiment to test the standard interpretation of quantum mechanics. The proposal survived for many year in the midst of no clear consensus on what results it would yield. The experiment was realized by Kim and Shih in 1999, and the apparently surprising result led to lot of debate. We review Popper's proposal and its realization in the light of current era when entanglement has been well studied, both theoretically and experimentally. We show that the "ghost-diffr...

  8. Experiences with the AVR reactor

    International Nuclear Information System (INIS)

    Experiences from 12 years' operation with the main components, fuel elements, fuelling plant, graphite and carbon internals, shutdown rods, steam generators, blowers and turbines. Experiences in radiation protection show that the discharge levels for inert gases and T are 7.5x1011 to 1x1012 Bq per year. The discharge of long-lived aerosols such as strontium 90, cesium 137, iodine 131 and ?-emitters is below the detection levels demanded by KTA 1503.1. (DG)

  9. Neutrinoless Double Beta Decay Experiments

    OpenAIRE

    Zuber, K.

    2014-01-01

    Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their r...

  10. Quantum interference experiments with fullerenes

    International Nuclear Information System (INIS)

    In this dissertation matter wave interference for the up to now most complex objects, the fullerenes C-60 and C-70 could be demonstrated. Already the first experiments with a free standing material grating with a grating constant of 100 nm clearly showed the first diffraction orders. Gradual improvements of the apparatus led to an increase of the contrast and the longitudinal coherence of the molecular beam - second and also third diffraction maxima became visible. All diffraction patterns - for C-60 and for C-70 - can be explained without the assumption of any decohering mechanism, although the thermal fullerenes, which are evaporated at temperatures of approximately 900 K, are in highly excited vibrational and rotational states. In a further experiment the Heisenberg uncertainty principle for the fullerene C-70 was demonstrated: By gradually reducing the width of a collimating slit the transverse momentum of the fullerene beam increased accordingly. For interference experiments with even larger molecules light gratings will be superior to material gratings: Their periodicity is perfect and they cannot be blocked by the particles. Since you can tune the diffraction efficiency by varying the light power, they are especially suited as beam splitters in a molecule interferometer. For C-60 and C-70 diffraction by a standing light wave with a periodicity of 257 nm could be demonstrated. All these experiments indicate that interference experiments with even larger moleculeence experiments with even larger molecules should be feasible. (author)

  11. Fusion neutronics experiments and analysis

    International Nuclear Information System (INIS)

    UCLA has led the neutronics R ampersand D effort in the US for the past several years through the well-established USDOE/JAERI Collaborative Program on Fusion Neutronics. Significant contributions have been made in providing solid bases for advancing the neutronics testing capabilities in fusion reactors. This resulted from the hands-on experience gained from conducting several fusion integral experiments to quantify the prediction uncertainties of key blanket design parameters such as tritium production rate, activation, and nuclear heating, and when possible, to narrow the gap between calculational results and measurements through improving nuclear data base and codes capabilities. The current focus is to conduct the experiments in an annular configuration where the test assembly totally surrounds a simulated line source. The simulated line source is the first-of-a-kind in the scope of fusion integral experiments and presents a significant contribution to the world of fusion neutronics. The experiments proceeded through Phase IIIA to Phase IIIC in these line source simulation experiments started in 1989

  12. Neutrinoless Double Beta Decay Experiments

    International Nuclear Information System (INIS)

    Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been per- formed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future. EXO and KamLAND-Zen experiments are based on the decay of Xe136, GERDA and MAJORANA experiments are based on the decay of Ge76, and the CUORE experiment is based on the decay of Te130

  13. Interpretation of Pulsed Source Experiments

    International Nuclear Information System (INIS)

    Pulsed neutron experiments performed during reactor commissioning programmes constitute important examples in which non-separable transients play an important role. Subcritical states studied with partial core loadings ate generally highly reflected, for example, and suffer gross flux distortions upon insertion of control rods. We have developed methods for theoretically simulating the response of non-uniform reactors to pulsed sources and have applied these to a wide range of typical experimental conditions anticipated during the commissioning programme of the Experimental Gas-Cooled Reactor (EGCR). The space-dependent kinetics equations, are solved for two to six neutron groups and one to six delayed neutron precursors by a semi-analytical method which is based entirely on the application of matrix techniques. Two classes of experiments have been examined, involving respectively the prompt transient and the total transient. In the first class we consider the common prompt decay experiment and the (?/?) technique, and in the second the source-jerk experiment. Theoretical simulations of these have been used to study the effects of higher modes and other factors affecting their interpretation. We have found that space-dependent effects are greatly suppressed in many important cases in experiments performed with 14-MeV source neutrons. Furthermore, for the source-jerk experiments, a relationship has been derived involving the volume integration of experimental measurelume integration of experimental measurements which provides an exact expression for the reactivity including the effects of all modes. (author)

  14. Sustained Spheromak Physics Experiment, SSPX

    International Nuclear Information System (INIS)

    The Sustained Spheromak Physics Experiment is proposed for experimental studies of spheromak confinement issues in a controlled way: in steady state relative to the confinement timescale and at low collisionality. Experiments in a flux - conserver will provide data on transport in the presence of resistive modes in shear-stabilized systems and establish operating regimes which pave the way for true steady-state experiments with the equilibrium field supplied by external coils. The proposal is based on analysis of past experiments, including the achievement of Te = 400 eV in a decaying spheromak in CTX. Electrostatic helicity injection from a coaxial ''''gun'''' into a shaped flux conserver will form and sustain the plasma for several milliseconds. The flux conserver minimizes fluxline intersection with the walls and provides MHD stability. Improvements from previous experiments include modem wall conditioning (especially boronization), a divertor for density and impurity control, and a bias magnetic flux for configurational flexibility. The bias flux will provide innovative experimental opportunities, including testing helicity drive on the large-radius plasma boundary. Diagnostics include Thomson scattering for Te measurements and ultra-short pulse reflectrometry to measure density and magnetic field profiles and turbulence. We expect to operate at Te of several hundred eV, allowing improved understanding of energy and current transport due to resistive MHD turbulence during sustained operation. This will provide an exciting advance in spheromak physics and a firm basis for future experiments in the fusion regime

  15. The MINERvA Experiment

    International Nuclear Information System (INIS)

    The MINERvA experiment is a dedicated cross-section experiment whose aim is to measure neutrino cross sections for inclusive and exclusive final states on several nuclei. The detector is fully commissioned and began running in March 2010. As a dedicated cross-section experiment, MINERvA has a particular need to know the incident neutrino flux: both the absolute level and the energy dependence. In these proceedings we describe the MINERvA detector, give an update on the experimental status, and discuss the means to determine the neutrino flux. The MINERvA experiment is now running and has completed 25% of its full Low Energy run. There are various techniques planned for understanding the flux, including taking neutrino data at several different beam configurations. The experiment has gotten a first glimpse of two of the six configurations, and completed four horn current scans. Because of its exclusive final state reconstruction capabilities MINERvA can provide the much needed input for current and future oscillation experiments. The inclusive final state measurements and comparisons of nuclear effects across as many states as possible will provide new insights into neutrino-nucleus scattering.

  16. Sustained Spheromak Physics Experiment, SSPX

    Energy Technology Data Exchange (ETDEWEB)

    Hooper, E.B.

    1997-05-15

    The Sustained Spheromak Physics Experiment is proposed for experimental studies of spheromak confinement issues in a controlled way: in steady state relative to the confinement timescale and at low collisionality. Experiments in a flux - conserver will provide data on transport in the presence of resistive modes in shear-stabilized systems and establish operating regimes which pave the way for true steady-state experiments with the equilibrium field supplied by external coils. The proposal is based on analysis of past experiments, including the achievement of T{sub e} = 400 eV in a decaying spheromak in CTX. Electrostatic helicity injection from a coaxial ``gun`` into a shaped flux conserver will form and sustain the plasma for several milliseconds. The flux conserver minimizes fluxline intersection with the walls and provides MHD stability. Improvements from previous experiments include modem wall conditioning (especially boronization), a divertor for density and impurity control, and a bias magnetic flux for configurational flexibility. The bias flux will provide innovative experimental opportunities, including testing helicity drive on the large-radius plasma boundary. Diagnostics include Thomson scattering for T{sub e} measurements and ultra-short pulse reflectrometry to measure density and magnetic field profiles and turbulence. We expect to operate at T{sub e} of several hundred eV, allowing improved understanding of energy and current transport due to resistive MHD turbulence during sustained operation. This will provide an exciting advance in spheromak physics and a firm basis for future experiments in the fusion regime.

  17. Neutron-antineutron conversion experiments

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, H.L.

    1982-01-01

    A great deal of attention has been given in this workshop to proton decay experiments. These experiments look for a violation of baryon number ..delta..B = 1, as predicted by Grand Unified Theories. There are many experiments searching for proton decay in deep mines and tunnels, all over the world. Some are in progress, others expect to start operating soon, and although clear positive evidence is still lacking second generation experiments are being actively proposed. All are being followed with great interest for the evidence they should provide about the validity and the nature of these theories. There is another class of experiments which bears on the same question in a different way. These also search for a violation of baryon number, but with ..delta..B = 2. With ..delta..B = 2 the spontaneous conversion of a neutron to an antineutron becomes possible. In a number of unified theories the predicted rate of neutron ..-->.. anti neutron conversion is within the range of experimental possibility. These experiments are reviewed.

  18. Neutron-antineutron conversion experiments

    International Nuclear Information System (INIS)

    A great deal of attention has been given in this workshop to proton decay experiments. These experiments look for a violation of baryon number ?B = 1, as predicted by Grand Unified Theories. There are many experiments searching for proton decay in deep mines and tunnels, all over the world. Some are in progress, others expect to start operating soon, and although clear positive evidence is still lacking second generation experiments are being actively proposed. All are being followed with great interest for the evidence they should provide about the validity and the nature of these theories. There is another class of experiments which bears on the same question in a different way. These also search for a violation of baryon number, but with ?B = 2. With ?B = 2 the spontaneous conversion of a neutron to an antineutron becomes possible. In a number of unified theories the predicted rate of neutron ? anti neutron conversion is within the range of experimental possibility. These experiments are reviewed

  19. Remote participation for LHD experiments

    International Nuclear Information System (INIS)

    To accomplish a large-scale experiment, such as large helical device (LHD) experiment, effective cooperation among institutes is necessary. In order to establish such cooperation, the NIFS provides the following remote participation facilities for the LHD experiments. (1) Remote access: The user can use a virtual private network (VPN) to connect to the LAN. This is the most flexible technique to participate in the experiments. The users who are not familiar with the experiments can log into the remote server running MetaFrame and Linux. In these computers, the required software is already installed. Therefore, the user need not be concerned with installing software. (2) Remote data reference: A mirror server exists to provide physical data to remote users. Moreover, the users can retrieve summarized data via a web server, which provides summarized information of each discharge experiment and graphs of the principal physical data. These graphs are useful for finding the required data quickly. (3) Remote communication and monitoring: For effective remote cooperation, communication between researchers is very important. For this purpose, a video conferencing system and a video streaming service are available. In addition to these facilities, the NIFS introduced Super SINET in 2002. This is an optical-fiber-based network. The backbone speed of this network is 10 Gbps, and the speed is 1 Gbps for direct connections

  20. Southern Ocean Iron Experiment (SOFex)

    Energy Technology Data Exchange (ETDEWEB)

    Coale, Kenneth H.

    2005-07-28

    The Southern Ocean Iron Experiment (SOFeX) was an experiment decades in the planning. It's implementation was among the most complex ship operations that SIO has been involved in. The SOFeX field expedition was successful in creating and tracking two experimentally enriched areas of the Southern Ocean, one characterized by low silicic acid, one characterized by high silicic acid. Both experimental sites were replete with abundant nitrate. About 100 scientists were involved overall. The major findings of this study were significant in several ways: (1) The productivity of the southern ocean is limited by iron availability. (2) Carbon uptake and flux is therefore controlled by iron availability (3) In spite of low silicic acid, iron promotes non-silicious phytoplankton growth and the uptake of carbon dioxide. (4) The transport of fixed carbon from the surface layers proceeds with a C:N ratio that would indicate differential remineralization of nitrogen at shallow depths. (5) These finding have major implications for modeling of carbon export based on nitrate utilization. (6) The general results of the experiment indicate that, beyond other southern ocean enrichment experiments, iron inputs have a much wider impact of productivity and carbon cycling than previously demonstrated. Scientific presentations: Coale, K., Johnson, K, Buesseler, K., 2002. The SOFeX Group. Eos. Trans. AGU 83(47) OS11A-0199. Coale, K., Johnson, K. Buesseler, K., 2002. SOFeX: Southern Ocean Iron Experiments. Overview and Experimental Design. Eos. Trans. AGU 83 (47) OS22D-01. Buesseler, K.,et al. 2002. Does Iron Fertilization Enhance Carbon Sequestration? Particle flux results from the Southern Ocean Iron Experiment. Eos. Trans. AGU 83 (47), OS22D-09. Johnson, K. et al. 2002. Open Ocean Iron Fertilization Experiments From IronEx-I through SOFeX: What We Know and What We Still Need to Understand. Eos. Trans. AGU 83 (47), OS22D-12. Coale, K. H., 2003. Carbon and Nutrient Cycling During the Southern Ocean Iron Enrichment Experiments. Seattle, WA. Geological Society of America. Coale, K., 2003. Open Ocean Iron Enrichment Experiments: What they have told us, what they have not. American Society for Limnology and Oceanography and The Oceanography Society, Honolulu, February 2004. Coale, K., 2004. Recent Research from the Southern Ocean Iron Experiment (SOFeX), in Taking the Heat: What is the impact of ocean fertilization on climate and ocean ecology? Science of earth and sky. AAAS, February 12-16, Seattle, WA

  1. Retail Choice Experiments: Comparing Early-AdopterExperience

    Energy Technology Data Exchange (ETDEWEB)

    Golove, William

    2003-03-01

    This paper reviews the experience with retail choice of non-residential electricity customers during the period from early 1998 through the first few months of 2000. Key findings include: (1) customers in California received a significantly smaller discount from utility tariffs than customers in other competitive markets; (2) this sample of large commercial/industrial customers believed they were benefiting significantly more from commodity savings from contracts with retail electricity service providers (RESP) than from value-added services; and,(3) market rules appear to be critical to customer experiences with retail competition, yet the relationship between market rules and market development is inadequately understood.

  2. Free-electron laser experiments in the microwave tokamak experiment

    International Nuclear Information System (INIS)

    Microwave pulses have been injected from a free electron-laser (FEL) into the Microwave Tokamak Experiment (MTX) at up to 0.2 GW at 140 GHz in short pulses (10-ns duration) with O-mode polarization. The power transmitted through the plasma was measured in a first experimental study of high power pulse propagation in the plasma; no nonlinear effects were found at this power level. Calculations indicate that nonlinear effects may be found at the higher power densities expected in future experiments. 9 refs., 2 figs

  3. Rare K-decay experiments

    International Nuclear Information System (INIS)

    There have been a proposal (accepted - E777) and a letter-of-intent to search for K+ ? ?+?+e- to a branching ratio better than 10-11. This motivation is to test different types of lepton number conservation - specifically, there is a boson in technicolor models which would allow such decays at a level around 10-10. This note discusses the E777 experiment, reasons for doing the experiment at the AGS, and the prospects for looking for even smaller branching ratios. A level of B.R. -9 (90% C.L.) for K+ ? ?+?+e- was achieved in a CERN experiment designed to study Ke4 decay. That experiment used a separated 8 x 104/pulse K+ beam with a PWC/spark chamber detector and no muon identification. E777 will use an unseparated beam with 2 x 107K+/pulse, PWCs, and muon identification. Cherenkovs will be designed to not misidentify particles, at a reduced efficiency. For example, two counters will be filled with H2 gas at atmospheric pressure to identify electrons. This reduces delta-ray contamination, at a cost of reduced efficiency for identifying the electrons. They chose a K+ momentum of 6 Gev/c (and, thus, to do the experiment at the AGS) for good particle identification

  4. Optimizing New Dark Energy Experiments

    Energy Technology Data Exchange (ETDEWEB)

    Tyson, J. Anthony [University of California, Davis

    2013-08-26

    Next generation “Stage IV” dark energy experiments under design during this grant, and now under construction, will enable the determination of the properties of dark energy and dark matter to unprecedented precision using multiple complementary probes. The most pressing challenge in these experiments is the characterization and understanding of the systematic errors present within any given experimental configuration and the resulting impact on the accuracy of our constraints on dark energy physics. The DETF and the P5 panel in their reports recommended “Expanded support for ancillary measurements required for the long-term program and for projects that will improve our understanding and reduction of the dominant systematic measurement errors.” Looking forward to the next generation Stage IV experiments we have developed a program to address the most important potential systematic errors within these experiments. Using data from current facilities it has been feasible and timely to undertake a detailed investigation of the systematic errors. In this DOE grant we studied of the source and impact of the dominant systematic effects in dark energy measurements, and developed new analysis tools and techniques to minimize their impact. Progress under this grant is briefly reviewed in this technical report. This work was a necessary precursor to the coming generations of wide-deep probes of the nature of dark energy and dark matter. The research has already had an impact on improving the efficiencies of all Stage III and IV dark energy experiments.

  5. Small plasma physics experiments 2

    International Nuclear Information System (INIS)

    This book contains 9 review papers and 13 contributed papers presented at the second symposium on Small Scale Laboratory Plasma Physics Experiments, held May 15 - June 9, 1989, at the Institute for Theoretical Physics, Trieste, Italy. The main objective of the symposium was the gathering of researchers of small experimental laboratory plasma physics groups to give lectures and present papers. The meeting also included workshops as a forum for exchange of experiences, partial research results and interesting solutions found for experimental problems. The Symposium serves as a counterpart of the rest of the Spring College activities, in which many of the presentations come from the large laboratories with budgets hundreds of times larger than those for small scale laboratory plasma experimentation reported on here. In the 3-day Symposium, 9 lectures and 28 contributed papers including poster papers were given and 10 workshops were conducted on themes of small scale laboratory experiments. Twenty-five research groups from 20 countries participated. The review lectures are divided into devices: Rotamak, Tokamak, compact tori, and plasma focus; and into techniques: pulse technology, optical and electric diagnostics. The contributed papers range from pinch and focus devices and experiments to vacuum spark, a multi-magnetic dipole device and a small FRC experiment, and includes techniques such as surface preparation, electrostatic lens and multiframe holographic interferometns and multiframe holographic interferometry. There is also a section on theoretical work including dimensionality of fluctuations, heat transport and classical resistive decay. Refs, figs and tabs

  6. High velocity impact experiment (HVIE)

    Energy Technology Data Exchange (ETDEWEB)

    Toor, A.; Donich, T.; Carter, P.

    1998-02-01

    The HVIE space project was conceived as a way to measure the absolute EOS for approximately 10 materials at pressures up to {approximately}30 Mb with order-of-magnitude higher accuracy than obtainable in any comparable experiment conducted on earth. The experiment configuration is such that each of the 10 materials interacts with all of the others thereby producing one-hundred independent, simultaneous EOS experiments The materials will be selected to provide critical information to weapons designers, National Ignition Facility target designers and planetary and geophysical scientists. In addition, HVIE will provide important scientific information to other communities, including the Ballistic Missile Defense Organization and the lethality and vulnerability community. The basic HVIE concept is to place two probes in counter rotating, highly elliptical orbits and collide them at high velocity (20 km/s) at 100 km altitude above the earth. The low altitude of the experiment will provide quick debris strip-out of orbit due to atmospheric drag. The preliminary conceptual evaluation of the HVIE has found no show stoppers. The design has been very easy to keep within the lift capabilities of commonly available rides to low earth orbit including the space shuttle. The cost of approximately 69 million dollars for 100 EOS experiment that will yield the much needed high accuracy, absolute measurement data is a bargain!

  7. The upgraded Pegasus Toroidal Experiment

    International Nuclear Information System (INIS)

    The Pegasus Toroidal Experiment was developed to explore the physics limits of plasma operation as the aspect ratio (A) approaches unity. Initial experiments on the device found that access to high normalized current and toroidal beta was limited by the presence of large-scale tearing modes. Major upgrades have been conducted of the facility to provide the control tools necessary to mitigate these resistive modes. The upgrades include new programmable power supplies, new poloidal field coils and increased, time-variable toroidal field. First ohmic operations with the upgraded system demonstrated position and current ramp-rate control, as well as improvement in ohmic flux consumption from 2.9 MA Wb-1 to 4.2 MA Wb-1. The upgraded experiment will be used to address three areas of physics interest. First, the kink and ballooning stability boundaries at low A and high normalized current will be investigated. Second, clean, high-current plasma sources will be studied as a helicity injection tool. Experiments with two such sources have produced toroidal currents three times greater than predicted by geometric field line following. Finally, the use of electron Bernstein waves to heat and drive current locally will be studied at the 1 MW level; initial modelling indicates that these experiments are feasible at a frequency of 2.45 GHz

  8. Schedule and status of irradiation experiments

    International Nuclear Information System (INIS)

    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

  9. Schedule and status of irradiation experiments

    Energy Technology Data Exchange (ETDEWEB)

    Rowcliffe, A.F.; Grossbeck, M.L. [Oak Ridge National Lab., TN (United States)

    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.

  10. The PICASSO Dark Matter Experiment

    Science.gov (United States)

    Wichoski, Ubi

    2011-12-01

    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 since 2002. 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. Recently, a new setup has been built and installed in the Ladder Lab area at SNOLAB. In the present phase of the experiment the Collaboration is running 4.5-litre detector modules with approximately 85 g of active mass per module. Here, we give an overview of the experiment and discuss the progress in background mitigation, in particular background discrimination in the PICASSO detectors.

  11. The PICASSO Dark Matter Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Wichoski, Ubi [Department of Physics, Laurentian University, Sudbury, ON, P3E 2C6 (Canada); Collaboration: PICASSO Collaboration

    2011-12-16

    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 since 2002. 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. Recently, a new setup has been built and installed in the Ladder Lab area at SNOLAB. In the present phase of the experiment the Collaboration is running 4.5-litre detector modules with approximately 85 g of active mass per module. Here, we give an overview of the experiment and discuss the progress in background mitigation, in particular background discrimination in the PICASSO detectors.

  12. Status of the Picasso Experiment

    Science.gov (United States)

    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.

  13. The PICASSO Dark Matter Experiment

    International Nuclear Information System (INIS)

    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 since 2002. 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. Recently, a new setup has been built and installed in the Ladder Lab area at SNOLAB. In the present phase of the experiment the Collaboration is running 4.5-litre detector modules with approximately 85 g of active mass per module. Here, we give an overview of the experiment and discuss the progress in background mitigation, in particular background discrimination in the PICASSO detectors.

  14. A Spherical Plasma Dynamo Experiment

    Science.gov (United States)

    Spence, E. J.; Reuter, K.; Forest, C. B.

    2009-07-01

    We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast-flowing plasma will allow experimenters to explore systems with magnetic Reynolds numbers an order of magnitude larger than those accessible with liquid-metal experiments. The plasma is confined using a ring-cusp strategy and subject to a toroidal differentially rotating outer boundary condition. As proof of principle, we present magnetohydrodynamic simulations of the proposed experiment. When a von Kármán-type boundary condition is specified, and the magnetic Reynolds number is large enough, dynamo action is observed. At different values of the magnetic Prandtl and Reynolds numbers the simulations demonstrate either laminar or turbulent dynamo action.

  15. A SPHERICAL PLASMA DYNAMO EXPERIMENT

    International Nuclear Information System (INIS)

    We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast-flowing plasma will allow experimenters to explore systems with magnetic Reynolds numbers an order of magnitude larger than those accessible with liquid-metal experiments. The plasma is confined using a ring-cusp strategy and subject to a toroidal differentially rotating outer boundary condition. As proof of principle, we present magnetohydrodynamic simulations of the proposed experiment. When a von Karman-type boundary condition is specified, and the magnetic Reynolds number is large enough, dynamo action is observed. At different values of the magnetic Prandtl and Reynolds numbers the simulations demonstrate either laminar or turbulent dynamo action.

  16. Status of the Choppertron experiments

    International Nuclear Information System (INIS)

    The Choppertron is a high-power, 11.4-GHz microwave generator driven by a linear induction accelerator (LIA). Earlier work with the Chopperton using a 2.5-MV, 1-kA beam demonstrated both high power and quality (phase and amplitude stability) microwave pulses. Significant effort was expended on suppressing pulse shortening caused by excitation of higher order modes. A new series of experiments are coming on-line using a 5-MV, 1-kA LIA beam to drive an upgraded Choppertron. In this paper we review the performance of the Choppertron at 2.5 MV including observed pulse shortening and describe the current status of the experiments. We discuss proposed experiments including reacceleration, active phase stabilization, and high-power microwave extraction

  17. Experiments expectations, plans and constraints

    International Nuclear Information System (INIS)

    The paper discusses the input from the experiments that is relevant to define the program for 2012. It covers the target for integrated luminosity, for both pp and Heavy Ion physics, the configuration for the Heavy Ion period (p-Pb, Pb-Pb or both) and the requests for special runs (high beta, VdM scan with un-squeezed beam, high or low pile-up runs...). The impact of LHC parameters and conditions on the experiments is also discussed, including the effect of pile-up (would experiment performance be limited next year with 50 ns?), beam energy, bunch length, vacuum and background, etc.. Proposals for optimizations will also be discussed, including the use of satellite-main collisions to provide luminosity for ALICE and suggestions for reducing the overhead of ALICE and LHCb polarity reversals. (authors)

  18. Results of bentonite grouting experiment

    International Nuclear Information System (INIS)

    The Bentonite grouting, which will not solidify, is mainly expected to reduce the hydraulic conductivity of underground water in the expected damage zone by filling the fractures or cracks, so the evaluation of the degree of hydraulic conductivity, stability and the improvement area becomes important. The study and basic experiments for sealing of the adits have been promoted, up to now, from the aspects of the characteristics and long term stability of candidate materials, and design and construction (Pusch et al., 1987; Tanai and Masuda, 1991). However, in Japan, the application examples of clay type materials for grouting are extremely few and is limited to the construction experience of the national oil underground storage at Kuji (Miyanaga and Ebara, 1993), with the exception of some test cases (Boergesson et al., 1991) from overseas. This report summarize basic characteristics of the clay type material relevant to the hydraulic conductivity, from the result of the clay grouting experiment conducted at the rock site. (author)

  19. Apollo scientific experiments data handbook

    Science.gov (United States)

    Eichelman, W. F. (editor); Lauderdale, W. W. (editor)

    1974-01-01

    A brief description of each of the Apollo scientific experiments was described, together with its operational history, the data content and formats, and the availability of the data. The lunar surface experiments described are the passive seismic, active seismic, lunar surface magnetometer, solar wind spectrometer, suprathermal ion detector, heat flow, charged particle, cold cathode gage, lunar geology, laser ranging retroreflector, cosmic ray detector, lunar portable magnetometer, traverse gravimeter, soil mechanics, far UV camera (lunar surface), lunar ejecta and meteorites, surface electrical properties, lunar atmospheric composition, lunar surface gravimeter, lunar seismic profiling, neutron flux, and dust detector. The orbital experiments described are the gamma-ray spectrometer, X-ray fluorescence, alpha-particle spectrometer, S-band transponder, mass spectrometer, far UV spectrometer, bistatic radar, IR scanning radiometer, particle shadows, magnetometer, lunar sounder, and laser altimeter. A brief listing of the mapping products available and information on the sample program were also included.

  20. Emergency planning and operating experience

    International Nuclear Information System (INIS)

    The purpose of this paper is to derive lessons from operating experience for the planning of emergency measures. This operating experience has two facets: it is obtained not only from the various incidents and accidents which have occurred in countries with nuclear power programmes and from the resulting application of emergency plans but also from the different exercises and simulations carried out in France and in other countries. Experience generally confirms the main approaches selected for emergency plans. The lessons to be derived are of three types: first, it appears necessary to set forth precisely the responsibilities of each person involved in order to prevent a watering-down of decisions in the event of an accident; secondly, considerable improvements need to be made in the different communication networks to be used; and thirdly, small accidents with minor radiological consequences deserve as systematic and thorough an approach as large and more improbable accidents. (author)

  1. The Compressed Baryonic Matter experiment

    Science.gov (United States)

    Seddiki, Sélim; Cbm Collaboration

    2014-04-01

    The Compressed Baryonic Matter (CBM) experiment is a next-generation fixed target detector which will operate at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt. The goal of this experiment is to explore the QCD phase diagram in the region of high net baryon densities using high-energy nucleus-nucleus collisions. Its research program includes the study of the equation-of-state of nuclear matter at high baryon densities, the search for the deconfinement and chiral phase transitions and the search for the QCD critical point. The CBM detector is designed to measure both bulk observables with a large acceptance and rare diagnostic probes such as charm particles, multi-strange hyperons, and low mass vector mesons in their di-leptonic decay. The physics program of CBM will be summarized, followed by an overview of the detector concept, a selection of the expected physics performance, and the status of preparation of the experiment.

  2. Experiment! planning, implementing and interpreting

    CERN Document Server

    Andersson, Oivind

    2012-01-01

    Experiments are the most effective way to learn about the world. By cleverly interfering with something to see how it reacts we are able to find out how it works. In contrast to passive observation, experimenting provides us with data relevant to our research and thus less time and effort is spent separating relevant from irrelevant information. The art of experimentation is often learnt by doing, so an intuitive understanding of the experimental method usually evolves gradually through years of trial and error. This book speeds up the journey for the reader to becoming a proficient experimenter. Organized in two parts, this unique text begins by providing a general introduction to the scientific approach to experimentation. It then describes the processes and tools required, including the relevant statistical and experimental methods. Towards the end of the book a methodology is presented, which leads the reader through the three phases of an experiment: 'Planning', 'Data Collection', and 'Analysis and S...

  3. Neutrinoless Double Beta Decay Experiments

    CERN Document Server

    Garfagnini, Alberto

    2014-01-01

    Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future.

  4. Status of the ALPS experiment

    Energy Technology Data Exchange (ETDEWEB)

    Ehret, Klaus

    2008-12-19

    The ALPS experiment at DESY searches for light particles which are coupling very weakly to photons. Primary physics goal is the search for axion like particles in a photon regeneration experiment. Central part of the experimental setup is a five Tesla strong superconducting HERA dipole magnet. During two operation periods in the years 2007 and 2008 we have collected first data and explored the sensitivity of the setup. A Fabry Perot laser cavity is being set up in order to increase the sensitivity by more than one order of magnitude. (orig.)

  5. Imaging experiment: The Viking Lander

    Science.gov (United States)

    Mutch, T.A.; Binder, A.B.; Huck, F.O.; Levinthal, E.C.; Morris, E.C.; Sagan, C.; Young, A.T.

    1972-01-01

    The Viking Lander Imaging System will consist of two identical facsimile cameras. Each camera has a high-resolution mode with an instantaneous field of view of 0.04??, and survey and color modes with instantaneous fields of view of 0.12??. Cameras are positioned one meter apart to provide stereoscopic coverage of the near-field. The Imaging Experiment will provide important information about the morphology, composition, and origin of the Martian surface and atmospheric features. In addition, lander pictures will provide supporting information for other experiments in biology, organic chemistry, meteorology, and physical properties. ?? 1972.

  6. A Spherical Plasma Dynamo Experiment

    CERN Document Server

    Spence, E J; Forest, C B

    2009-01-01

    We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast flowing plasma will allow experimenters to explore the high-magnetic-Reynolds-number regime. The plasma is confined using a ring-cusp strategy and subject to a toroidal differentially rotating outer boundary condition. As proof of principle, we present magnetohydrodynamic simulations of the proposed experiment. When a von K\\'arm\\'an-type boundary condition is specified, and the magnetic Reynolds number is large enough, dynamo action is observed. At different values of the magnetic Prandtl and Reynolds numbers the simulations demonstrate either laminar or turbulent dynamo action.

  7. CANDU reactors. Experience and innovation

    International Nuclear Information System (INIS)

    The title of this paper highlights two key considerations which must be properly balanced through good management in the evolution of any engineering product. Excessive reliance on experience will lead to product stagnation; excessive reliance on innovation will often lead to an unsatisfactory product, at least in the first generation of this product. To illustrate this balancing process, the paper reviews CANDU evolution and experience and the balance between proveness and innovation achieved through management of the evolution process from early prototypes to today's large-scale commercial units. A forecast of continuing evolutionary directions is included

  8. Candu reactors - experience and innovation

    International Nuclear Information System (INIS)

    The title of this paper highlights two key considerations which must be properly balanced through good management in the evolution of any engineering product. Excessive reliance on experience will lead to product stagnation; excessive reliance on innovation will often lead to an unsatisfactory product, at least in the first generation of this product. To illustrate this balancing process, the paper reviews CANDU evolution and experience and the balance between proveness and innovation achieved through management of the evolution process from early prototypes to today's large-scale commercial units. A forecast of continuing evolutionary directions is included

  9. Steady-state irradiation experiments

    International Nuclear Information System (INIS)

    This paper describes the steady-state irradiation experiments DFR-350, RAPSODIE-I and DFR-455 to be milestones in the development of the SNR Mk Ia fuel rod concept and also a number of relevant results. For the two defective fuel elements from the KNK-2 reactor, in particular for the BE 202 IA, the status of the fuel rods is described on the basis of results obtained at the various stages of post-irradiation examination. The comparison of these results with those from previous experiments shows the value of such results for these rods. Thus the fuel rod behaviour in different circumstances is evaluated in qualitative terms. (orig.)

  10. Status of the ALPS experiment

    International Nuclear Information System (INIS)

    The ALPS experiment at DESY searches for light particles which are coupling very weakly to photons. Primary physics goal is the search for axion like particles in a photon regeneration experiment. Central part of the experimental setup is a five Tesla strong superconducting HERA dipole magnet. During two operation periods in the years 2007 and 2008 we have collected first data and explored the sensitivity of the setup. A Fabry Perot laser cavity is being set up in order to increase the sensitivity by more than one order of magnitude. (orig.)

  11. Airborne Research Experience for Educators

    Science.gov (United States)

    Costa, V. B.; Albertson, R.; Smith, S.; Stockman, S. A.

    2009-12-01

    The Airborne Research Experience for Educators (AREE) Program, conducted by the NASA Dryden Flight Research Center Office of Education in partnership with the AERO Institute, NASA Teaching From Space Program, and California State University Fullerton, is a complete end-to-end residential research experience in airborne remote sensing and atmospheric science. The 2009 program engaged ten secondary educators who specialize in science, technology, engineering or mathematics in a 6-week Student Airborne Research Program (SARP) offered through NSERC. Educators participated in collection of in-flight remote sensor data during flights aboard the NASA DC-8 as well as in-situ research on atmospheric chemistry (bovine emissions of methane); algal blooms (remote sensing to determine location and degree of blooms for further in-situ analysis); and crop classification (exploration of how drought conditions in Central California have impacted almond and cotton crops). AREE represents a unique model of the STEM teacher-as-researcher professional development experience because it asks educators to participate in a research experience and then translate their experiences into classroom practice through the design, implementation, and evaluation of instructional materials that emphasize the scientific research process, inquiry-based investigations, and manipulation of real data. Each AREE Master Educator drafted a Curriculum Brief, Teachers Guide, and accompanying resources for a topic in their teaching assignment Currently, most professional development programs offer either a research experience OR a curriculum development experience. The dual nature of the AREE model engaged educators in both experiences. Educators’ content and pedagogical knowledge of STEM was increased through the review of pertinent research articles during the first week, attendance at lectures and workshops during the second week, and participation in the airborne and in-situ research studies, data collection, and subsequent data analysis. Their pedagogical skills in teaching STEM content were enhanced through the collaborative development of curriculum units, critique of curriculum plans by education faculty experts, and exploration of NASA educational resources. AREE also engaged educators in the NASA-sponsored Classroom of the Future's Virtual Design Center (http://vdc.cet.edu/overview.htm), which provides curriculum designers with research-based guidelines to help them design inquiry-based learning activities. The AREE Master Teachers are currently in process of a pilot implementation of their developed curricula, with results due at the end of October 2009. This session will report on program evaluation data and identify best practices for replication of the model. Three perspectives will be provided, including views from the NASA Flight Operations Director, AREE Project Manager, and University Science Education Faculty Mentor. Three AREE Master Educators will present examples of their curriculum materials.

  12. STATUS OF THE CUORE EXPERIMENT

    Directory of Open Access Journals (Sweden)

    Claudia Tomei

    2013-12-01

    Full Text Available The CUORE (Cryogenic Underground Observatory for Rare Events experiment will search for neutrinoless double beta decay of 130Te, a rare nuclear process that, if observed, would demonstrate the Majorana nature of the neutrino and enable measurements of the effective Majorana mass. The CUORE setup consists of an array of 988 tellurium dioxide crystals, operated as bolometers, with a total mass of about 200 kg of 130Te. The experiment is under construction at the Gran Sasso National Laboratory in Italy. As a first step towards CUORE, the first tower (CUORE-0 has been assembled and will soon be in operation.

  13. Toward future solar neutrino experiments

    International Nuclear Information System (INIS)

    A new generation of solar neutrino experiments has recently begun with the initial operation of the SuperKamiokande detector and will soon be joined with the expected completion of SNO and Borexino. These detectors will provide the first direct tests of spectral deformation and possible flavor non-conservation for neutrinos from the Sun. The discoveries by these three experiments will no doubt define what direction the field will take; however, the outlines of several desirable capabilities for future detectors are clear and they present significant technical challenges. This paper presents a review of the several efforts known to the author which aim to offer answers to these challenges

  14. The GlueX Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Curtis A. Meyer

    2006-11-01

    The GlueX experiment at Jefferson Lab is part of the planned CEBAF 12GeV upgrade. The project received its Critical Decision 1 (CD1) in February of 2006, and CD2 is anticipated in 2007. The GlueX experiment will search for and study the spectrum of gluonic excitations of mesons in the 1.5 to 2.5GeV/c^2 mass region using an 8.5 to 9GeV beam of linearly polarized photons.

  15. Reflections on the ARPA Experience

    OpenAIRE

    Engelmore, Robert S.

    1982-01-01

    When I returned to Stanford last summer after a two-year leave of absence, serving as a program manager at the Defense Advanced Projects Agency, I was frequently asked about that experience. It was superb experience, for many reasons. As a program manager I had near-perfect vantage point from which to view the entire field of Artificial Intelligence. Not only did I become better acquainted with the most creative and active people in the field, I was also personally kept up to date on their la...

  16. Status of solar neutrino experiments

    International Nuclear Information System (INIS)

    A summary of the status of four solar neutrino experiments is presented. The Homestake 37Cl data are presented and the possible time dependence of the data is addressed. Data from 1040 days of operation of the Kamiokande II detector are presented next. The status of the 71Ga experiment in the Baksan Neutrino Observatory, which has operated for a short time, is discussed. The summary concludes with a discussion of the status of the Sudbury Neutrino Observatory, which has been under construction since the beginning of 1990. 7 refs., 6 figs

  17. Recent decommissioning experience in BNFL

    International Nuclear Information System (INIS)

    BNFL is now engaged in a long term programme to decommission surplus radioactive facilities. Certain projects have been deliberately selected to provide experience in decommissioning specific types of facilities whilst all have proven invaluable training grounds in decommissioning techniques and organisation. Four projects are included here, selected for the lessons and experience they have provided. These are the original Sellafield Fuel Storage Pond, a mixed oxide (Pu+U) fuel plant, redundant plutonium facilities within the main Magnox reprocessing plant, and the Capenhurst Gaseous Diffusion Uranium enrichment plant

  18. Casimir Effect : Theory and Experiments

    CERN Document Server

    Lambrecht, Astrid

    2011-01-01

    The Casimir effect is a crucial prediction of Quantum Field Theory which has fascinating connections with open questions in fundamental physics. The ideal formula written by Casimir does not describe real experiments and it has to be generalized by taking into account the effects of imperfect reflection, thermal fluctuations, geometry as well as the corrections coming from surface physics. We discuss these developments in Casimir physics and give the current status in the comparison between theory and experiment after years of improvements in measurements as well as theory.

  19. The Second Generation HAPPEx Experiments

    International Nuclear Information System (INIS)

    The HAPPEx-II experiment at Thomas Jefferson National Accelerator Facility measures the parity-violating helicity-correlated scattering asymmetry APV in elastic electron scattering from 1H and 4He. These measurements explore the strange quark contributions to the electric and magnetic vector form factors View the MathML source and View the MathML source of the nucleon. An introduction to the experimental technique and preliminary results from an initial run of these experiments in summer 2004 are presented.

  20. Optimization of crystal extraction experiment

    OpenAIRE

    Biryukov, Valery

    2001-01-01

    Using a computer model for the crystal extraction, we investigate the bent-crystal parameters optimal for the extraction experiment. The optimal crystal curvature is found to be near 1 GeV/cm (for pv/R), i.e. a factor of 2--3 higher than for the crystal application in beam lines. An influence of the accelerator optics on extraction is discussed. A possibility of using the high-Z crystals for extraction is considered. The simulations for the ongoing experiments at the CERN-SP...