WorldWideScience
1

Experiments  

SCPinfonet

...You are here Activities Public engagement Resources Physicists in Primary Schools Topics Light Experiments Public engagement Resources Physicists in Primary Schools Topics ... Light Experiments Apparatus Safety notes Experiments Light: From bonfires to lasers 1. Sources Aims/Facts Objects that give out light are called ...sources of light.Activity Discussion Snap a glow stick so that it glows brightly. Ask what is happening.View safety notesView Apparatus List ...Encourage answers such as the stick is giving out light. Several sticks might be handed round then placed prominently to be seen throughout ...

2

Experiments  

SCPinfonet

...here Activities Public engagement Resources Physicists in Primary Schools Topics Forces and gravity Experiments Public engagement Resources Physicists in Primary Schools Topics ...Forces and gravity Experiments Apparatus Safety notes Experiments Forces and gravity: Is gravity real or does the Earth just suck? 1. ... Gravity Aims/Facts Gravity is a forceActivity Discussion Drop a soft object. Ask what made it fall - it moved so there ... Gravity   6. Story about Sir Isaac Newton and a fruit dropping on his head (Show Powerpoint Slides 4, 5 ...

3

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

4

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)

5

Chlorine Experiments  

Science.gov (United States)

This site is provided by the American Chemistry Council's Science Center. The first experiment is called Sunscreen and Light Energy, which shows how chlorine is an ingredient in sunscreen and how it helps protect people from the sun's damage. The other experiment, called Antifreeze and the Freezing Point of Water, teaches how chlorine is an important component in antifreeze. Using antifreeze, foam cups, glass vials, and other simple ingredients, students learn how the liquid helps keep cars and other engines running during winter.

6

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)

7

Neutrino experiments  

International Nuclear Information System (INIS)

After participating in a several experiments near the reactor at Bugey, at distances from 15 to 100 m from the reactor the laboratory joined a collaboration for search of effect of neutrino oscillations at longer distances (1 km) from the neutrinos' point of origin. The zone covered by this experiment raises a particular interest because the results of several underground experiments on the atmospheric neutrinos indicated that oscillation could appear in this zone. The Chooz collaboration, reported here, joined three American universities (Philadelphia, New Mexico and Irvine), two Italian universities (Pisa and Trieste), the Kurchatov Institute in Moscow and two French laboratories (the LAPP in Annecy and the College de France). The first data have been recorded during the autumn of 1996 prior to the commissioning of the reactors (2 x 4200 MWth), to measure the background noise. The detector is a target of 6 t liquid scintillator doped with Gd, sunk in 120 t non-doped liquid scintillator separated by thin transparent wall. The target is viewed by 192 photomultipliers. The scintillator liquids are carried up to the detector and then to the exterior tanks by a tunnel of 200 m length and a height gradient of 15 m. The fragility of the detector imposes a simultaneous filling of its components, with an accuracy of the order of 1 cm. A 200 MHz sampling system of the photomultiplier pulses signing the neutrino interaction was developed in order to obtain simultaneously information on the pulse-height, timing and shape. This experiment could serve as a prototype for heavier experiments conceived in US, in Russia at Rovno and Krasnoyarsk, and in France, at 15 km from the Perry reactor, at 500 m underground. Still more ambitious is the Japan project at Kamioka, at 160 m distance from a nuclear reactor. The experiment at Perry will push the electron neutrino upper mass estimates down to 0.01 eV

8

Biodiesel Experiment  

Science.gov (United States)

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.

Lawrence, Richard

9

Dirac experiment  

Energy Technology Data Exchange (ETDEWEB)

The main objective of DIRAC experiment is the measurement of the lifetime {tau} of the exotic hadronic atom consisting of {pi}{sup +} and {pi}{sup -} mesons. The lifetime of this atom is determined by the decay mode {pi}{sup +} {pi}{sup -} {yields} {pi}{sup 0} {pi}{sup 0} due to the strong interaction. Through the precise relationship between the lifetime and the S-wave pion-pion scattering length difference |a{sub 0} - a{sub 2}| for isospin 0 and 2 (respectively), a measurement of {tau} with an accuracy of 10% will allow a determination of |a{sub 0} - a{sub 2}| at a 5% precision level. Pion-pion scattering lengths have been calculated in the framework of chiral perturbation theory with an accuracy below 5%. In this way DIRAC experiment will provide a crucial test of the chiral symmetry breaking scheme in QCD effective theories at low energies.

Gomez, F.; Adeva, B.; Afanasev, L.; Benayoun, M.; Brekhovskikh, V.; Caragheorgheopol, G.; Cechak, T.; Chiba, M.; Constantinescu, S.; Doudarev, A.; Dreossi, D.; Drijard, D.; Ferro-Luzzi, M.; Gallas, M.V.; Gerndt, J.; Giacomich, R.; Gianotti, P.; Goldin, D.; Gorin, A.; Gortchakov, O.; Guaraldo, C.; Hansroul, M.; Hosek, R.; Iliescu, M.; Jabitski, M.; Kalinina, N.; Karpoukhine, V.; Kluson, J.; Kobayashi, M.; Kokkas, P.; Komarov, V.; Koulikov, A.; Kouptsov, A.; Krouglov, V.; Krouglova, L.; Kuroda, K.-I.; Lanaro, A.; Lapshine, V.; Lednicky, R.; Leruste, P.; Levisandri, P.; Lopez Aguera, A.; Lucherini, V.; Maki, T.; Manuilov, I.; Montanet, L.; Narjoux, J.-L.; Nemenov, L.; Nikitin, M.; Nunez Pardo, T.; Okada, K.; Olchevskii, V.; Pazos, A.; Pentia, M.; Penzo, A.; Perreau, J.-M.; Petrascu, C.; Plo, M.; Ponta, T.; Pop, D.; Riazantsev, A.; Rodriguez, J.M.; Rodriguez Fernandez, A.; Rykaline, V.; Santamarina, C.; Saborido, J.; Schacher, J.; Sidorov, A.; Smolik, J.; Takeutchi, F.; Tarasov, A.; Tauscher, L.; Tobar, M.J.; Trusov, S.; Vazquez, P.; Vlachos, S.; Yazkov, V.; Yoshimura, Y.; Zrelov, P

2001-04-01

10

Dirac experiment  

International Nuclear Information System (INIS)

The main objective of DIRAC experiment is the measurement of the lifetime ? of the exotic hadronic atom consisting of ?+ and ?- mesons. The lifetime of this atom is determined by the decay mode ?+ ?- ? ?0 ?0 due to the strong interaction. Through the precise relationship between the lifetime and the S-wave pion-pion scattering length difference |a0 - a2| for isospin 0 and 2 (respectively), a measurement of ? with an accuracy of 10% will allow a determination of |a0 - a2| at a 5% precision level. Pion-pion scattering lengths have been calculated in the framework of chiral perturbation theory with an accuracy below 5%. In this way DIRAC experiment will provide a crucial test of the chiral symmetry breaking scheme in QCD effective theories at low energies

11

Mendel's experiments  

Science.gov (United States)

In this web lab, Gregor Mendel directs students through interactive virtual experiments. Students experiment with pea plants to discover how the seven pairs of traits that Mendel studied are inherited. The lab can be completed linearly, or students can move to a particular segment using the Sections menu. After they observe pea plants and infer the number of traits present, students perform five plant crosses. Mendel instructs students to search for patterns in the transmission of traits. Next, students predict the outcome of a cross and are introduced to the terms dominant and recessive. Finally, students work with pedigrees, crossing plants to determine for each of the seven pairs of traits which characteristic is dominant or recessive. A notebook feature lets students check their answers. Copyright 2005 Eisenhower National Clearinghouse

Center, Education D.

2002-01-01

12

JADE experiment  

International Nuclear Information System (INIS)

JADE will be one of the first five experiments at PETRA, which is scheduled to be available for experiment by the end of 1978. This project is that of the international collaboration of Japan, Germany and England. This paper is devoted to the description of the JADE detector and objectives. The detector consists of a large solid angle magnetic detector together with lead glass shower counters and a muon filter. The layout of the detector is presented with figures. As for the objectives, brief explanations are given for the following scheduled measurements. 1) Measurement of the total annihilation cross section. 2) Search for new particles. 3) Search for electromagnetic-weak interaction interference effects. 4) Study of hadronic final states. 5) Two-photon processes. (Aoki, K.)

13

Experiment 7  

CERN Multimedia

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.

1968-01-01

14

Shielding experiments  

International Nuclear Information System (INIS)

Shielding mock-up experiments for Prototype Fast Breeder Reactor (PFBR) and Advanced Heavy Water Reactor (AHWR) are carried out in shielding corner facility of APSARA reactor, to assess the overall accuracy of the codes and nuclear data used in reactor shield design. As APSARA is a swimming pool-type thermal reactor, for fast reactor experiments, typical fast reactor shielding facility was created by using uranium assemblies as spectrum converter. The flux was also enhanced by replacing water by air. Experiments have been carried out to study neutron attenuation through typical fast reactor radial and axial bulk shielding materials such as steel, sodium, graphite, borated graphite and boron carbide. A large number of reaction rates, sensitive to different regions of the neutron energy spectrum, were measured using foil activation and Solid State Nuclear Track Detector (SSNTD) techniques. These experimental results were analysed using computational tools normally used in design calculations, viz., discrete ordinate transport codes with multigroup cross section sets. Comparison of measured reaction rates with calculations provided suitable bias factors for parameters relevant to shield design, such as sodium activation, fast neutron fluence, fission equivalent fluxes etc. The measured neutron spectrum on the incident face of shield model compares well with the calculated fast reactor blanket leakage neutron spectrum. The comparison of calculated reaction rates within shson of calculated reaction rates within shield model indicate that the calculations suffer from considerable uncertainties, in shield models with boron carbide/borated graphite. For AHWR shielding experiments, no spectrum converter was used as it is also a thermal reactor. Radiation streaming studies through penetrations/ducts of various shapes and sizes relevant to AHWR shielding were carried out. (author)

15

Lift Experiment  

Science.gov (United States)

In this experiment, learners investigate how the size of a wing affects lift. Learners count the number of pennies an egg crate plane wing can hold until the plane will no longer fly. Learners calculate the amount of weight/mass added to plane and conduct two more trials to find the average weight/mass lifted. This lesson guide includes a data table, conclusion questions, and extension ideas.

Shannon Ricles

2013-01-30

16

Experiments desiderata  

CERN Document Server

In this talk, an attempt will be made to review the LHC experiments desiderata in the current LHC context. The impact on the physics program of the beam energy and integrated luminosity shall be reminded. In particular, the benefits and shortcomings will be presented of a 900 GeV run and of a pilot run at a yet to be defined higher energy. A few run scenari for 2009 (and 2010) will be sketched.

Ferro-Luzzi, M

2009-01-01

17

Crucible Experiments  

Science.gov (United States)

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.

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

2014-08-01

18

SANE experiment  

International Nuclear Information System (INIS)

The Spin Asymmetries of the Nucleon Experiment (SANE) is a measurement of parallel and near-perpendicular double spin asymmetries in an inclusive electron scattering. The main goal of the experiment was to measure A#parallel# and A80 and extract the spin asymmetries of the proton A1p, A2p and spin structure functions g1p and g2p. Using the Thomas Jefferson National Accelerator Facility's polarized electron beam and the University of Virginia's polarized frozen ammonia (14NH3) target in Hall C, the experiment ran in 2009, collecting data in a Q2 region from 2.5 to 6.5 GeV2 and between Bjorken x of 0.3 to 0.8. Particle detection was accomplished using the Big Electron Telescope Array (BETA), a novel non-magnetic detector. This talk will address the progress of the analysis designed to extract the proton spin asymmetries and structure functions. Preliminary results will be presented.

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

TRISTAN experiment  

International Nuclear Information System (INIS)

Any successor to PETRA and PEP colliders was expected to extend the energy range to the region where the weak interaction effect becomes sizable in annihilation process. The aim was to reach the level, at which the all round study of the standard model can be performed in a clean system of e+e- collision. Also it was aimed to explore the energy region where top quark pair production is likely. Considering the available site for accelerator construction and the expected size of the electroweak interference effect, the target energy was set at 60 GeV at the lowest. TRISTAN-1 experiment is a big initial step in the long range physics program. The laboratory established the plan to move on to TRISTAN-2 (B Factory) project. The TRISTAN accelerator including the main storage ring, the time sequence of storage ring operation, three experimental groups of AMY, TOPAZ and VENUS, and so on are explained. The experiments on basic annihilation process, the search for new particles, the electroweak interaction, QCD studies and so on are reported. The optimum TRISTAN ring was estimated as 3 km in diameter, but the largest possible size in the site was 1/3 of that. Hard decision was made to equip the ring with unusually many accelerating RF cavities and to apply superconducting technology. (K.I.)

21

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.

22

Clustering experiments  

CERN Document Server

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.

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

2011-01-01

23

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)

24

Experiment Dashboard for the LHC Experiments  

CERN Document Server

The goal of the Grid is to provide a coherent access to distributed computing resources. All LHC experiments are using several Grid infrastructures and a variety of the middleware flavors. Due to the complexity and heterogeinity of a distributed system the monitoring represents a challenging task. Independently of the underlying platform , the experiments need to ave a complete and uniform picture of their activities on the Grid ideally seen by the users as a single powerful computing resource. Overall operation of the infrastructure used by experiments is defined both by the quality of the Grid and the quality of the tools and services developed/used by the experiments. Correspondingly the required monitoring information should combine both Grid-related and experiment/application specific data. On the other hand, users of the LHC experiments have various roles and need different levels of details regarding monitoring data. The paper will focus on the Grid monitoring from the experiment/user perspectives with...

Andreeva, Julia; Gaidioz, Benjamin; Herrala, Juha; Maier, Gerhild; Rocha, Ricardo; Saiz, Pablo; Sidorova, Irina; CERN. Geneva. IT Department

2007-01-01

25

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)

26

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)

27

Particle physics experiments 1978  

International Nuclear Information System (INIS)

This report contains descriptions of the work performed in 1978 on particle physics experiments which have been approved by the Particle Physics Experiments Selection Panel. The contents consist of the unedited contributions from each experiment. (author)

28

Particle physics experiments 1987  

International Nuclear Information System (INIS)

This report describes work carried out in 1987 on experiments approved by the Particle Physics Experiments Selection Panel (United Kingdom). The contents consist of unedited contributions from each experiment. (author)

29

Particle physics experiments 1986  

International Nuclear Information System (INIS)

The paper presents research work carried out in 1986 on 52 elementary particle experiments approved by the Particle Physics Experiments Selection Panel. Most of the experiments were collaborative and involved research groups from different countries. About half of the experiments were conducted at CERN, the remaining experiments employed the accelerators: LAMPT, LEP, PETRA, SLAC, and HERA. The contents consist of unedited contributions from each experiment. (U.K.)

30

Experiments in Electrochemistry  

Science.gov (United States)

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.

Carboni, Giorgio.

1998-01-01

31

The User Experience  

Science.gov (United States)

User experience (UX) is about arranging the elements of a product or service to optimize how people will interact with it. In this article, the author talks about the importance of user experience and discusses the design of user experiences in libraries. He first looks at what UX is. Then he describes three kinds of user experience design: (1)…

Schmidt, Aaron

2010-01-01

32

Experiment WA1 (CDHS Neutrino Experiment)  

CERN Multimedia

Experiment WA1, also known under CDHS (CERN, Dortmund, Heidelberg, Saclay; spokesman Jack Steinberger), was the first neutrino experiment on the SPS, in its West Area. Magnetized iron (with a toroidal field) forms the core of the detector. On its outside we see drift chambers and photomultipliers (detecting the light from the plastic scintillators further in). Peter Schilly is wearing a white coat. See also CERN Annual Report 1976, p.57.

1977-01-01

33

Real Life Experiences with Experience Design  

DEFF Research Database (Denmark)

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.

Dalsgård, Peter; Halskov, Kim

2006-01-01

34

The AMS experiment  

CERN Multimedia

The Alpha Magnetic Spectrometer (AMS) detector will be installed as a particle physics experiment on the International Space Station. It will look for antimatter pockets in space. AMS is a CERN recognised experiment.

Laurent Guiraud

1999-01-01

35

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.

36

Modified Afshar Experiment: Calculations  

OpenAIRE

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...

Flores, Eduardo V.

2008-01-01

37

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.

38

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)

39

Experiments in physical chemistry  

CERN Document Server

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

Wilson, J M; Denaro, A R

1968-01-01

40

Neutrino experiments; Experiences sur les neutrinos  

Energy Technology Data Exchange (ETDEWEB)

After participating in a several experiments near the reactor at Bugey, at distances from 15 to 100 m from the reactor the laboratory joined a collaboration for search of effect of neutrino oscillations at longer distances (1 km) from the neutrinos` point of origin. The zone covered by this experiment raises a particular interest because the results of several underground experiments on the atmospheric neutrinos indicated that oscillation could appear in this zone. The Chooz collaboration, reported here, joined three American universities (Philadelphia, New Mexico and Irvine), two Italian universities (Pisa and Trieste), the Kurchatov Institute in Moscow and two French laboratories (the LAPP in Annecy and the College de France). The first data have been recorded during the autumn of 1996 prior to the commissioning of the reactors (2 x 4200 MW{sub th}), to measure the background noise. The detector is a target of 6 t liquid scintillator doped with Gd, sunk in 120 t non-doped liquid scintillator separated by thin transparent wall. The target is viewed by 192 photomultipliers. The scintillator liquids are carried up to the detector and then to the exterior tanks by a tunnel of 200 m length and a height gradient of 15 m. The fragility of the detector imposes a simultaneous filling of its components, with an accuracy of the order of 1 cm. A 200 MHz sampling system of the photomultiplier pulses signing the neutrino interaction was developed in order to obtain simultaneously information on the pulse-height, timing and shape. This experiment could serve as a prototype for heavier experiments conceived in US, in Russia at Rovno and Krasnoyarsk, and in France, at 15 km from the Perry reactor, at 500 m underground. Still more ambitious is the Japan project at Kamioka, at 160 m distance from a nuclear reactor. The experiment at Perry will push the electron neutrino upper mass estimates down to 0.01 eV

Kerret, H. de; Kryn, D.; Lefievre, B.; Obolensky, M.; Veron, D.; Vyrodov, V. [Lab. de Physique Corpusculaire et Cosmologie, College de France, 75 - Paris (France)

1997-12-31

41

Nursing experience in Iran.  

Science.gov (United States)

The aim of this study was to describe Iranian registered nurses' experience of nursing, and to discuss some of the sociocultural viewpoints that are relevant for such experience. Data were collected by asking 75 registered nurses (RNs) to write statements about their nursing experience. Written descriptions were analyzed by an interpretative phenomenological method. Four different themes emerged: (i) task-oriented nursing experience; (ii) caring-oriented nursing experience; (iii) altruism-oriented nursing experience; and (iv) difficulties experienced. Some participants explained nursing experience by describing a series of daily routine tasks. Others described experience by emphasizing how nursing was a caring profession, and some described their nursing experience from an altruistic viewpoint. Furthermore, the participants described nursing experience based on the relevant problems that they faced in everyday professional life. They expressed difficulties relating to work settings and also problems that were related to the sociocultural view of nursing in society. The nurses in general were dissatisfied with their work and this made them seriously consider leaving the nursing profession. The findings have implications for nursing management and education. These suggestions might enable changes that could effectively improve the status of nursing in Iran. An holistic approach is necessary to integrate these implications into a nursing system, both in practice and in education, for improving conditions that will facilitate a higher development of nursing in Iran. PMID:12694476

Nasrabadi, Alireza Nikbakht; Emami, Azita; Yekta, Zohre Parsa

2003-04-01

42

Experiment, right or wrong  

CERN Document Server

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 ...

Franklin, Allan

2008-01-01

43

Stimulated Brillouin scattering experiments  

International Nuclear Information System (INIS)

This report describes two experiments in which SBS would be expected to play an important role. In the first experiment, we find a clear signature of the Brillouin backscatter of a short (100 psec) pulse from a long (approx. 50 ?m) gradient length gas target plasma. The second experiment used much longer (approx. 1 nsec) pulses on spherical glass shell targets. These experiments were done with both narrow ( 30A) bandwidth laser light. Using one-dimensional, spherically symmetric fluid simulations, we have attempted to model many of the laser-plasma interaction processes which combine to determine the amount of absorbed energy in the long-pulse experiments. These simulations indicate that modest laser bandwidths are successful in reducing the level of SBS at the irradiances (15 W/cm2) used in these experiments

44

Selected Parity Violation Experiments  

CERN Document Server

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.

Ramsay, W D

2004-01-01

45

Python Experiment Suite Implementation  

Directory of Open Access Journals (Sweden)

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.

2010-05-01

46

Microgravity Experiments On Animals  

Science.gov (United States)

Paper describes experiments on animal subjects planned for Spacelab Life Sciences 1 mission. Laboratory equipment evaluated, and physiological experiments performed. Represents first step in establishing technology for maintaining and manipulating rodents, nonhuman primates, amphibians, and plants during space flight without jeopardizing crew's environment. In addition, experiments focus on effects of microgravity on cardiopulmonary, cardiovascular, and musculoskeletal systems; on regulation of volume of blood and production of red blood cells; and on calcium metabolism and gravity receptors.

Dalton, B. P.; Leon, H.; Hogan, R.; Clarke, B.; Tollinger, D.

1991-01-01

47

ACTS aeronautical experiments  

Science.gov (United States)

A description of the two aeronautical mobile satellite experiments utilizing NASA's Advanced Communications Technology Satellite (ACTS) is presented. The low bit rate experiment is principally a Ka-band technology demonstration of a prototype 4.8 Kbps aeronautic mobile terminal employing three experimental active electronically steered arrays. The high bit rate experiment can demonstrate a 64 Kbps to 384 Kbps satellite link between a ground terminal and an aircraft.

Nguyen, Tien M.; Estabrook, Polly; Abbe, Brian; Sue, Miles K.; Raquet, Charles A.

1992-03-01

48

Conceptualising the audiobook experience  

OpenAIRE

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 ...

Iben Have; Birgitte Stougaard Pedersen

2013-01-01

49

Research Experiences for Undergraduates  

Science.gov (United States)

... for Undergraduates Synopsis of Program: The Research Experiences for Undergraduates (REU) program ... for support of student research: REU Supplements and REU Sites. REU Supplements may be included in ...

50

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.

51

LDR structural experiment definition  

Science.gov (United States)

A system study to develop the definition of a structural flight experiment for a large precision segmented reflector on the Space Station was accomplished by the Boeing Aerospace Company for NASA's Langley Research Center. The objective of the study was to use a Large Deployable Reflector (LDR) baseline configuration as the basis for focusing an experiment definition, so that the resulting accommodation requirements and interface constraints could be used as part of the mission requirements data base for Space Station. The primary objectives of the first experiment are to construct the primary mirror support truss and to determine its structural and thermal characteristics. Addition of an optical bench, thermal shield and primary mirror segments, and alignment of the optical components, would occur on a second experiment. The structure would then be moved to the payload point system for pointing, optical control, and scientific optical measurement for a third experiment. Experiment 1 will deploy the primary support truss while it is attached to the instrument module structure. The ability to adjust the mirror attachment points and to attach several dummy primary mirror segments with a robotic system will also be demonstrated. Experiment 2 will be achieved by adding new components and equipment to experiment one. Experiment 3 will demonstrate advanced control strategies, active adjustment of the primary mirror alignment, and technologies associated with optical sensing.

Russell, R. A.

1988-01-01

52

Chemiluminescence: An Illuminating Experiment  

Science.gov (United States)

Describes an experiment in which luminescence is observed during a reaction between sodium borohydride and trisbipyridalruthenium (III). Includes a discussion of the theory of chemiluminescence. (MLH)

Gafney, Harry D.; Adamson, Arthur W.

1975-01-01

53

The Baikal neutrino experiment  

International Nuclear Information System (INIS)

A neutrino detector telescopes was placed under the water of the Lake Baikal for measuring cosmic neutrons. The Baikal experiment is described in detail. Its results include search for high-energy cosmic neutron sources and investigation of neutrino physics problems. The first experiment using 36 electron multipliers was directed to prove the existence of magnetic monopoles. (R.P.)

54

Franklin: User Experiences  

Energy Technology Data Exchange (ETDEWEB)

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.

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

2008-05-07

55

Neutrino oscillation experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

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

1996-11-01

56

Experiment in Structural Learning.  

Science.gov (United States)

The concern of the experiment is to find out the roles of abstraction and generalization in the learning of mathematical structures. The basic question is whether to generalize before abstracting or vice-versa in order to maximize transfer. The experiment involves four mathematical tasks and a transfer of activity. Experimental procedures are…

Diener, Z. P.

57

LOFT small break experiments  

International Nuclear Information System (INIS)

This paper reviews the small break loss-of-coolant experiments performed at the LOFT facility during the NRC and OECD programs. The paper includes a brief facility description; description and results of the LOFT small break experiments; discussion of the atypicalities of LOFT with regard to small break transients and application of the LOFT experimental data. 9 refs., 3 figs

58

LOFT small break experiments  

International Nuclear Information System (INIS)

This paper reviews the small break loss-of-coolant experiments performed at the LOFT facility during the NRC and OECD programs. The paper included a brief facility description, a description and results of the LOFT small break experiments, and a discussion of the atypicalities of LOFT with regard to small break transients and application of the LOFT experimental data. (orig.)

59

Miller-Urey Experiment  

Science.gov (United States)

This applet, from the University of California at San Diego, offers a simulation of the classic origin of life experiment as originally performed by Stanley Miller and Harold Urey in 1953. The user selects chemicals, activates a spark, and finds out what was produced in the resulting "soup." The site also offers two video explanations of the original experiments by Stanley Miller.

2008-06-06

60

Outlook for PWA Experiments  

CERN Document Server

An outlook is given on proton-driven plasma wakefield experiments KET Strategy Workshop, Dortmund, 25-26 October 2010, focusing on two themes: 1) community interest and potential, and 2) a first demonstration experiment for proton-driven plasma wakefield acceleration (PDPWA) at CERN.

Zimmermann, F

2010-01-01

61

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.

62

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.

63

Experience with MODSIM II  

International Nuclear Information System (INIS)

We present results of computer simulations for Data Acquisition systems for large fixed target experiments in an object oriented simulation language, MODSIM. This paper summarizes our experiences and presents preliminary results from the simulation already completed. We also indicate the resources required for this project

64

Instrumental Analysis Experiments  

Science.gov (United States)

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.

Walters, John P.

65

Die Coin Experiment  

Science.gov (United States)

This resource consists of a Java applet and expository text. The applet simulates the experiment of rolling a die and then tossing a coin the number of times shown on the die. The die distribution and the probability of heads can be specified. The applet illustrates a two-stage experiment.

Kyle Siegrist

66

Bates parity violation experiment  

International Nuclear Information System (INIS)

An experiment designed to measure precisely the parity violating interference in the elastic scattering of longitudinally polarized electrons from 12C is under way at the Bates Accelerator Center. The experiment required the construction of a high intensity polarized injector whose successful operation has recently been demonstrated. Present efforts are aimed towards the understanding and control of sources of systematic errors. (author)

67

Particle physics experiments 1992  

International Nuclear Information System (INIS)

The research programs described here were carried out in 1992 at Rutherford Appleton Laboratory and funded by the United Kingdom Science and Engineering Research Council. The area covered in these experiments is particle physics. Unedited contributions from over forty experimental programs are included. Experiments are listed according to their current status, the accelerator used and its years of operation. (UK)

68

Designing New Undergraduate Experiments.  

Science.gov (United States)

Addresses the difficulty that teaching assistants and new faculty members may experience in finding a convenient outline of the task of preparing an experiment for undergraduates. Explains all phases of developing a laboratory exercise and includes a list of things to consider for each phase. (DDR)

Yang, Min J.; Atkinson, George F.

1998-01-01

69

Peak Experience Project  

Science.gov (United States)

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…

Scott, Daniel G.; Evans, Jessica

2010-01-01

70

Ball collision experiments  

Science.gov (United States)

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.

Cross, R.

2015-01-01

71

Context, Situation, and Experience.  

Science.gov (United States)

This paper discusses contextualization in the TESL classroom. Starting from the statement that fluency and comprehension are more important than absolute accuracy, and that to know how to use language students must "experience context in situations," a definition is attempted of the terms "context,""situation," and "experience." Situation is…

Palmer, Joe Darwin

72

A Python Experiment Suite  

Directory of Open Access Journals (Sweden)

Full Text Available We introduce the Python Experiment Suite, an open source software tool written in Python, that supports scientists, engineers and others to conduct automated generic software experiments on a larger scale with numerous features: parameter ranges and combinations can be evaluated automatically, where different experiment architectures (e.g. grid search are available. The suite also takes care of logging results into files, can handle experiment interruption and continuation, for instance after process termination by power failure, supports execution on multiple cores and contains a convenient Python interface to retrieve the stored results. Configuration files ease the setup of complex experiments without modifying code, and various run-time options allow for a variety of use cases.

2010-10-01

73

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

74

Multiwell Experiment Geophysics Program  

Science.gov (United States)

Two Vertical Seismic Profile experiments and a Three-Dimensional Surface Seismic experiment were conducted at the Multiwell Experiment site in central Colorado to assess the applicability of seismic methods to mapping lenticular sand bodies of the Mesaverde group in the Piceance Basin. The data from these experiments were analyzed in conjunction with synthetic seismograms computed from well logs and additional geological data. This analysis demonstrated that the producing zones can be delineated once the seismic character of these zones is determined but the morphology of individual sand lenses cannot be mapped at the Multiwell Experiment site. Additionally, the extended vertical seismic profile technique was demonstrated to provide a very high resolution seismic technique for investigation of the region adjacent to an existing well.

Searls, C. A.

1985-09-01

75

Extravehicular activity welding experiment  

Science.gov (United States)

The In-Space Technology Experiments Program (INSTEP) provides an opportunity to explore the many critical questions which can only be answered by experimentation in space. The objective of the Extravehicular Activity Welding Experiment definition project was to define the requirements for a spaceflight experiment to evaluate the feasibility of performing manual welding tasks during EVA. Consideration was given to experiment design, work station design, welding hardware design, payload integration requirements, and human factors (including safety). The results of this effort are presented. Included are the specific objectives of the flight test, details of the tasks which will generate the required data, and a description of the equipment which will be needed to support the tasks. Work station requirements are addressed as are human factors, STS integration procedures and, most importantly, safety considerations. A preliminary estimate of the cost and the schedule for completion of the experiment through flight and postflight analysis are given.

Watson, J. Kevin

1989-01-01

76

Cryogenics for LHC experiments  

CERN Multimedia

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...

2001-01-01

77

Simulation - modeling - experiment; Simulation - modelisation - experience  

Energy Technology Data Exchange (ETDEWEB)

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.)

NONE

2004-07-01

78

Radiochemical solar neutrino experiments  

Science.gov (United States)

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/(cm-s), which agrees well with the prediction from a detailed solar model of ?pp?=(3.30-0.14+0.13)×1010/(cm-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 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.

Gavrin, V. N.; Cleveland, B. T.

2011-12-01

79

Radiochemical solar neutrino experiments  

Energy Technology Data Exchange (ETDEWEB)

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{yields}d+e{sup +}+{nu}{sub 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{sub -3.5}{sup +3.9} SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux of {phi}{sub pp}{sup Earth }=(3.41{sub -0.77}{sup +0.76}) Multiplication-Sign 10{sup 10}/(cm{sup 2}-s), which agrees well with the prediction from a detailed solar model of {phi}{sub pp}{sup Earth }=(3.30{sub -0.14}{sup +0.13}) Multiplication-Sign 10{sup 10}/(cm{sup 2}-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 {sup 71}Ge 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.

Gavrin, V.N., E-mail: gavrin@dionis.iasnet.ru [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312 (Russian Federation); Cleveland, B.T., E-mail: bclevela@snolab.ca [Department of Physics, University of Washington, Seattle Washington 98195 (United States)

2011-12-15

80

CANDU operating experience  

International Nuclear Information System (INIS)

The CANDU-PHW program is based upon 38 years of heavy water reactor experience with 35 years of operating experience. Canada has had 72 reactor years of nuclear-electric operations experience with 10 nuclear units in 4 generating stations during a period of 18 years. All objectives have been met with outstanding performance: worker safety, public safety, environmental emissions, reliable electricity production, and low electricity cost. The achievement has been realized through total teamwork involving all scientific disciplines and all project functions (research, design, manufacturing, construction, and operation). (auth)

81

Experiments with radioactivity  

International Nuclear Information System (INIS)

The booklet describing experiments with radioactivity includes the following chapters: (1) radiation alarm (2) What is radioactivity? (3) Radioactive decay (4) Half-time (5) Alpha decay (6) Beta decay (6) Gamma decay (8) Neutron radiation (9) Measurement of radioactive radiation (1) Radiation and living tissue (11) Safety measures (12) Radiation protection during experiments (13) Radioactive sources (14) Experiments with a cloud chamber (15) Construction of a Geiger counter (16) Transistor radiation detector (17) Scintillation counter (18) Geiger counter with glow lamp with external power supply (19) Geiger counter with glow lamp with battery power supply (20) Technical dictionary.

82

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

83

Germany's Solar Experiment  

Science.gov (United States)

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.

Nova

84

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

85

Spina Bifida Experience  

Medline Plus

Full Text Available ... Bifida Experience Your browser does not support iFrames. Source: National Center on Birth Defects and Developmental Disabilities ( ... 2013 Page last updated: May 14, 2013 Content source: National Center on Birth Defects and Developmental Disabilities ...

86

The CBM experiment  

International Nuclear Information System (INIS)

Full text: The CBM experiment at FAIR prepares for exploring the QCD phase diagram at high net baryon densities. Physics objectives, detector R and D and detailed simulation studies will be presented in this contribution. (author)

87

The world's biggest experiment  

CERN Multimedia

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)

Gregson, Liz

2008-01-01

88

Spina Bifida Experience  

Science.gov (United States)

... Archive Homepage Videos Share Compartir Contact Us The Spina Bifida Experience Your browser does not support iFrames. Source: ... Disabilities (NCBDDD) Running Time: (4:54) Individuals with spina bifida and their parents talk about their lives and ...

89

Spina Bifida Experience  

Medline Plus

Full Text Available ... on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . National Center on Birth Defects and ... Us The Spina Bifida Experience Your browser does ...

90

K-meson experiments  

Energy Technology Data Exchange (ETDEWEB)

This paper presents a brief review of the status of K-meson interactions with nuclei. Emphasis is placed on 1s shell nuclei with representative examples drawn from experiments on heavier nuclear systems. Directions for future developments are discussed.

Hungerford, E.V.

1980-01-01

91

The Majorana Experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

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

92

KamLAND experiment  

International Nuclear Information System (INIS)

A low-energy and low-background neutrino experiment, 'KamLAND' started data acquisition in January 2002, to search for a long base-line neutrino oscillation using the nuclear reactors as sources. With good detector performance very close to the design values, the data analysis is progressing rapidly, in order to test the LMA solution of the solar neutrino problem, by an experiment with artificial sources for the first time

93

Women's experience and spirituality  

OpenAIRE

Spirituality concerns one’s orientation to life. It therefore influences one’s identity. This article recognizes a plurality of spiritualities. It focuses on the relationship between women’s experiences and spirituality within the framework of Christian faith. The concept patriarchaler Entfremdung is illuminated. This is the alienation women experience when they exist as women in male-defined, male-structured and male-dominated ecclesiastical cultures. As far as “identity” is concer...

Dreyer, Yolanda

1999-01-01

94

PHYSICS EXPERIMENT REMOTE VISION  

OpenAIRE

Physics experiment is the basic and the most important tool for motivation, explanation of subject matter, revision and demonstration of physical phenomena and rules. In the second chapter we talk about the use of a computer in education and physics. We talk about historical integration of the computer in education, about features of physical experiments and the use of the computer at physics classes. We get to know types of applications which allow remote monitoring and controlling of phy...

Hladen, Sas?o

2012-01-01

95

Reactor antineutrino experiments  

OpenAIRE

Neutrinos are elementary particles in the standard model of particle physics. There are 3 flavors of neutrinos that oscillate among themselves. Their oscillation can be described by a 3$\\times$3 unitary matrix, containing three mixing angles $\\theta_{12}$, $\\theta_{23}$, $\\theta_{13}$, and one CP phase. Both $\\theta_{12}$ and $\\theta_{23}$ are known from previous experiments. $\\theta_{13}$ was unknown just two years ago. The Daya Bay experiment gave the first definitive non-...

Lu, Haoqi

2014-01-01

96

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.

97

Prolonged labour : women's experiences  

OpenAIRE

Aim: The overall aim of this thesis was to illuminate, describe, and promote understanding of women’s experiences of prolonged labour. The thesis compromises four studies. Methods: Paper I describes a case-referent study that recruited women (n = 255) giving singleton live birth to their first child by spontaneous labour after more than 37 completed weeks’ pregnancy. Participants completed a questionnaire that investigated childbirth experiences, previous family relationships, and childho...

Nystedt, Astrid

2005-01-01

98

Mechatronics with experiments  

CERN Document Server

Mechatronics with Experiments, Second Edition comprehensively covers the fundamental scientific principles and technologies that are used in the design of modern computer-controlled machines and processes. It provides all of the technical background (covering mechanical, aerospace, chemical, electrical, and computer engineering) needed for designing an automated machine or process. The new edition of this textbook has been updated to include a number of experiments involving electronic circuit design and microcontroller programming and includes real time software development using MATLAB® and

Cetinkunt, Sabri

2014-01-01

99

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.)

100

Coin Die Experiment  

Science.gov (United States)

This resource consists of a Java applet and expository text. The applet is a simulation of the experiment that consists of tossing a coin and then rolling either a red die or a green die, depending on the outcome of the coin toss. The probability of heads and the distributions of the two dice can be specified. The applet illustrates a two-stage experiment.

Kyle Siegrist

101

The MAJORANA Experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

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

102

The MAJORANA Experiment  

OpenAIRE

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.

Majorana, The Collaboration

2011-01-01

103

Experiments on photoconductivity  

International Nuclear Information System (INIS)

Computer-assisted experiments with CdS and CdSe photoresistors are described. The most important characteristics of the photoresistors are determined: (i) the spectral response, (ii) the photocurrent versus incident radiant power, (iii) the rise and decay time constants and (iv) the frequency response to modulated light. The photoconductivity gain of the photoresistors is estimated. The experiments are well suitable for undergraduate laboratories. (paper)

104

Sculpting the Illness Experience  

Directory of Open Access Journals (Sweden)

Full Text Available Otto Kamensek provided the cover art for the Fall 2014 issue of the Open Journal of Occupational Therapy. “Glimmer of Hope” is part of Otto’s collection “Shard’s, Bone Deep,” which includes hand-built ceramic sculptures that portray his experiences with a lifelong chronic illness. Engaging in ceramic sculpture helps him process the experiences associated with Juvenile Rheumatoid Arthritis and provides a means to support others experiencing chronic illness.

Molly Bathje MS, OTR/L

2014-10-01

105

Radiochemical solar neutrino experiments  

CERN Document Server

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^+ + nu_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 ^{+3.9}_{-3.5} SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux at the earth of (3.41 ^{+0.76}_{-0.77}) x 10^{10}/(cm^2-s), which agrees well with the prediction from a detailed solar model of (3.30 ^{+0.13} _{-0.14}) x 10^{10}/(cm^...

Gavrin, V N

2007-01-01

106

The POLARBEAR-2 Experiment  

Science.gov (United States)

We present an overview of the design and development of the POLARBEAR-2 experiment. The POLARBEAR-2 experiment is a cosmic microwave background polarimetry experiment, which aims to characterize the small angular scale B-mode signal due to gravitational lensing and search for the large angular scale B-mode signal from inflationary gravitational waves. The experiment will have a 365 mm diameter multi-chroic focal plane filled with 7,588 polarization sensitive antenna-coupled Transition Edge Sensor bolometers and will observe at 95 and 150 GHz. The focal plane is cooled to 250 mK. The bolometers will be read-out by SQUIDs with frequency domain multiplexing. The experiment will utilize high purity alumina lenses and thermal filters to achieve the required high optical throughput. A continuously rotating, cooled half-wave plate will be used to give stringent control over systematic errors. The experiment is designed to achieve a noise equivalent temperature of 5.7 K, and this allows us to constrain the signal from the inflationary primordial gravitational corresponding to a tensor-to-scalar ratio of (). POLARBEAR-2 will also be able to put a constraint on the sum of neutrino masses to 90 meV () with POLARBEAR-2 data alone and 65 meV () when combined with the Planck satellite. We plan to start observations in 2014 in the Atacama Desert in Chile.

Suzuki, A.; Ade, P.; Akiba, Y.; Aleman, C.; Arnold, K.; Atlas, M.; Barron, D.; Borrill, J.; Chapman, S.; Chinone, Y.; Cukierman, A.; Dobbs, M.; Elleflot, T.; Errard, J.; Fabbian, G.; Feng, G.; Gilbert, A.; Grainger, W.; Halverson, N.; Hasegawa, M.; Hattori, K.; Hazumi, M.; Holzapfel, W.; Hori, Y.; Inoue, Y.; Jaehnig, G.; Katayama, N.; Keating, B.; Kermish, Z.; Keskitalo, R.; Kisner, T.; Lee, A.; Matsuda, F.; Matsumura, T.; Morii, H.; Moyerman, S.; Myers, M.; Navaroli, M.; Nishino, H.; Okamura, T.; Reichart, C.; Richards, P.; Ross, C.; Rotermund, K.; Sholl, M.; Siritanasak, P.; Smecher, G.; Stebor, N.; Stompor, R.; Suzuki, J.; Takada, S.; Takakura, S.; Tomaru, T.; Wilson, B.; Yamaguchi, H.; Zahn, O.

2014-09-01

107

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

108

Understanding customer experience.  

Science.gov (United States)

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

Meyer, Christopher; Schwager, Andre

2007-02-01

109

Inverse Cerenkov experiment  

International Nuclear Information System (INIS)

The final report describes work performed to investigate inverse Cherenkov acceleration (ICA) as a promising method for laser particle acceleration. In particular, an improved configuration of ICA is being tested in a experiment presently underway on the Accelerator Test Facility (ATF). In the experiment, the high peak power (? 10 GW) linearly polarized ATF CO2 laser beam is converted to a radially polarized beam. This is beam is focused with an axicon at the Cherenkov angle onto the ATF 50-MeV e-beam inside a hydrogen gas cell, where the gas acts as the phase matching medium of the interaction. An energy gain of ?12 MeV is predicted assuming a delivered laser peak power of 5 GW. The experiment is divided into two phases. The Phase I experiments, which were completed in the spring of 1992, were conducted before the ATF e-beam was available and involved several successful tests of the optical systems. Phase II experiments are with the e-beam and laser beam, and are still in progress. The ATF demonstrated delivery of the e-beam to the experiment in Dec. 1992. A preliminary ''debugging'' run with the e-beam and laser beam occurred in May 1993. This revealed the need for some experimental modifications, which have been implemented. The second run is tentatively scheduled for October or November 1993. In parallel to the experimental efforts has been ongoing theoretical work to support the experiment and investigate improvement and/or offshoots. One exciting vement and/or offshoots. One exciting offshoot has been theoretical work showing that free-space laser acceleration of electrons is possible using a radially-polarized, axicon-focused laser beam, but without any phase-matching gas. The Monte Carlo code used to model the ICA process has been upgraded and expanded to handle different types of laser beam input profiles

110

Neutrino mass experiment  

International Nuclear Information System (INIS)

The principle of the neutrino mass measurement is reviewed with particular emphasis on the problem of energy resolution. A brief review is also given for the ITEP group's experiment in 1984 and other past and future scheduled experiments in the world. These include; FNAL-Rockefeller-Lawrence Livermore group, Los Alamos group, Zurich group, and Stockholm group. The detail of the experiment of the author's group, INS (Institute for Nuclear Study, University of Tokyo), is also presented in some length. In the present experiment, very thin ? sources were obtained in which the electron energy loss was reduced by a factor of two compared with that of the ITEP group. One of the features of this experiment is an excellent energy resolution of 5 - 7 eV. ''No energy loss'' peak was clearly observed in the KL2L3 Auger spectrum (18.5 KeV). The ratio of the number of events with and without energy loss increases with the thickness of the source. In case of the two layer source, it is about 13 %. The resolution of the spectrometer was obtained using this sharp peak, which was ?p/p = 0.0256 % (?E = 9.3 eV) compared with the (?p/p) = 0.060 % (?E = 22.3 eV) of the ITEP group. (Aoki, K.)

111

The KATRIN Experiment  

Science.gov (United States)

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.

Prall, Matthias

2012-08-01

112

Reactor antineutrino experiments  

Science.gov (United States)

Neutrinos are elementary particles in the standard model of particle physics. There are three flavors of neutrinos that oscillate among themselves. Their oscillation can be described by a 3×3 unitary matrix, containing three mixing angles ?12, ?23, ?13, and one CP phase. Both ?12 and ?23 are known from previous experiments. ?13 was unknown just two years ago. The Daya Bay experiment gave the first definitive nonzero value in 2012. An improved measurement of the oscillation amplitude sin 22(? 13) = 0.090+0.008-0.009 and the first direct measurement of the \\bar ? e mass-squared difference \\vert? m2ee\\vert\\big (2.59+0.19-0.20\\big )×10-3 eV2 were obtained recently. The large value of ?13 boosts the next generation of reactor antineutrino experiments designed to determine the neutrino mass hierarchy, such as JUNO and RENO-50.

Lu, Haoqi

2014-09-01

113

Thought experiment with tritium  

International Nuclear Information System (INIS)

An experiment is proposed in which a minimum of thirty (30) grams of tritium is packaged as lithium tritide in a steel container weighing several kilograms. After decontamination of the outside surface, calorimetry measurements would be made, and the unit would be weighed very accurately. After several decades, the calorimeter and weight measurements would be repeated. If the weight measurements could be made with the required accuracy, it would be possible to correlate the observed change in mass with the total energy emitted (calculated from the mean energy measured by calorimetry) over the time interval. If successful, this experiment would, in the opinion of the authors, be the first laboratory experiment to directly verify the equivalency of mass and energy. 4 refs., 2 figs., 3 tabs

114

The POLARBEAR Experiment  

CERN Document Server

We present the design and characterization of the POLARBEAR experiment. POLARBEAR will measure the polarization of the cosmic microwave background (CMB) on angular scales ranging from the experiment's 3.5 arcminute beam size to several degrees. The experiment utilizes a unique focal plane of 1,274 antenna-coupled, polarization sensitive TES bolometers cooled to 250 milliKelvin. Employing this focal plane along with stringent control over systematic errors, POLARBEAR has the sensitivity to detect the expected small scale B-mode signal due to gravitational lensing and search for the large scale B-mode signal from inflationary gravitational waves. POLARBEAR was assembled for an engineering run in the Inyo Mountains of California in 2010 and was deployed in late 2011 to the Atacama Desert in Chile. An overview of the instrument is presented along with characterization results from observations in Chile.

Kermish, Z; Anthony, A; Arnold, K; Arnold, K; Barron, D; Boettger, D; Borrill, J; Chapman, S; Chinone, Y; Dobbs, M A; Errard, J; Fabbian, G; Flanigan, D; Fuller, G; Ghribi, A; Grainger, W; Halverson, N; Hasegawa, M; Hattori, K; Hazumi, M; Holzapfel, W L; Howard, J; Hyland, P; Jaffe, A; Keating, B; Kisner, T; Lee, A T; Jeune, M Le; Linder, E; Lungu, M; Matsuda, F; Matsumura, T; Meng, X; Miller, N J; Morii, H; Moyerman, S; Myers, M J; Nishino, H; Paar, H; Quealy, E; Reichardt, C L; Richards, P L; Ross, C; Shimizu, A; Shimon, M; Shimmin, C; Sholl, M; Siritanasak, P; Spieler, H; Stebor, N; Steinbach, B; Stompor, R; Suzuki, A; Tomaru, T; Tucker, C; Zahn, O

2012-01-01

115

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

116

Results of space experiments  

International Nuclear Information System (INIS)

Life science research in space was started in Europe with the first Biostack experiment flown onboard Apollo 16 in 1972. Biostack was designed to investigate the biological effects of single heavy ions of cosmic radiation. Among several undertakings towards this goal, the Biostack achieved the highest precision in the determination of the spatial correlation of the observed biological response of single test organisms to the passage of single heavy ions, which is the mandatory requirement. It also provided information on the influence of additional space-flight factors, such as microgravity, on radiation effects and measurements of the spectrum of charge and energy of the cosmic radiation. The experiment was performed as an international cooperation effort. This report gives a summary of the biological data accumulated in this and the follow-on experiments of the Biostack program. (orig.)

117

Future Reactor Experiments  

CERN Document Server

The measurement of the neutrino mixing angle $\\theta_{13}$ opens a gateway for the next generation experiments to measure the neutrino mass hierarchy and the leptonic CP-violating phase. Future reactor experiments will focus on mass hierarchy determination and the precision measurement of mixing parameters. Mass hierarchy can be determined from the disappearance of reactor electron antineutrinos based on the interference effect of two separated oscillation modes. Relative and absolute measurement techniques have been explored. A proposed experiment JUNO, with a 20 kton liquid scintillator detector of $3%/$$\\sqrt{E(MeV)}$ energy resolution, $\\sim$ 53 km far from reactors of $\\sim$ 36 GW total thermal power, can reach to a sensitivity of $\\Delta\\chi^{2}>16$ considering the spread of reactor cores and uncertainties of the detector response. Three of mixing parameters are expected to be measured to better than 1% precision. There are multiple detector options for JUNO under investigation. The technical challenges...

He, Miao

2013-01-01

118

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)

119

experience in school  

Directory of Open Access Journals (Sweden)

Full Text Available An experiment investigated the effect of a make-believe fantasy mode of problem presentation on reasoning about valid conditional syllogisms in three groups of 5-year-old children: a school children from middle-class families in England; b school children from middle-class families in Brazil; and, c children from low SES families in Brazil who had never gone to school. Previous investigations had reported that the use of a fantasy context elicited significantly more logically appropriate responses from school children than did other contexts, and that children with school experiences made significantly more logically appropriate responses than did children without school experience. The present investigation extended these findings to show that the beneficial effects of a fantasy context extended to lower-class illiterate children who never had been exposed to schooling

Maria da Gra\\u00E7a B. B. Dias

2005-01-01

120

AGS experiments, 1988, 1989, 1990  

Energy Technology Data Exchange (ETDEWEB)

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.

Depken, J.C.

1991-04-01

121

AGS experiments: 1985, 1986, 1987  

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, also ordered by number, and publications of AGS experiments, 1982-1987

122

Experiments with ? hypernuclei  

International Nuclear Information System (INIS)

Recent observations of hypernuclear bound states in experiments at the Brookhaven National Laboratory Alternate Gradient Synchrotron are described. Gamma rays from hypernuclei have been observed in coincidence with a (K-,?-) energy difference spectrum. The energy resolution and purity of the (K-,?-) spectrum demonstrates the hypernuclear origin of the gamma rays. The case of /sub ?/7Li is discussed in detail as it represents the first successful application of the technique. Experiments of this kind can benefit greatly from the increased kaon beam intensity that will be available at LAMPF II

123

Nucleon diffraction dissociation (experiment)  

International Nuclear Information System (INIS)

The present situation in nucleonic diffraction dissociation into the (N?) system is discussed. New experimental data have come mainly from experiments performed at high energies by electronics technique at Serpukhov, FNAL and ISR with high statistics. There are three arguments for the existence of baryon-exchange Deck mechanism. The results show the existence of the correlation between production and decay of (?N) system. At least partially these correlations can be explained kinematically. The mass distribution for experiments are compared. Sets of data are absolutely normalized. The spectra turned out to be almost identical apart from the mass range around 1.5 GeV

124

Reactor antineutrino experiments  

CERN Document Server

Neutrinos are elementary particles in the standard model of particle physics. There are 3 flavors of neutrinos that oscillate among themselves. Their oscillation can be described by a 3$\\times$3 unitary matrix, containing three mixing angles $\\theta_{12}$, $\\theta_{23}$, $\\theta_{13}$, and one CP phase. Both $\\theta_{12}$ and $\\theta_{23}$ are known from previous experiments. $\\theta_{13}$ was unknown just two years ago. The Daya Bay experiment gave the first definitive non-zero value in 2012. An improved measurement of the oscillation amplitude $\\sin^{2}2(\\theta_{13})$ = $0.090^{+0.008}_{-0.009}$ and the first direct measurement of the $\\bar\

Lu, Haoqi

2014-01-01

125

Double beta decay experiments  

International Nuclear Information System (INIS)

The great sensitivity of double beta decay to neutrino mass and right handed currents has motivated many new and exciting attempts to observe this elusive nuclear phenomenon directly. Experiments in operation and other coming on line in the next one or two years are expected to result in order-of-magnitude improvements in detectable half lives for both the two-neutrino and no-neutrino modes. A brief history of double beta decay experiments is presented together with a discussion of current experimental efforts, including a gas filled time projection chamber being used to study selenium-82. (author)

126

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.

127

Initial Cooling Experiment (ICE)  

CERN Multimedia

In 1977, in a record-time of 9 months, the magnets of the g-2 experiment were modified and used to build a proton/antiproton storage ring: the "Initial Cooling Experiment" (ICE). It served for the verification of the cooling methods to be used for the "Antiproton Project". Stochastic cooling was proven the same year, electron cooling followed later. Also, with ICE the experimental lower limit for the antiproton lifetime was raised by 9 orders of magnitude: from 2 microseconds to 32 hours. For its previous life as g-2 storage ring, see 7405430. More on ICE: 7711282, 7809081, 7908242.

Photographic Service

1978-01-01

128

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

129

The Double Chooz Experiment  

OpenAIRE

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...

Kaplan, Daniel M.

2006-01-01

130

Experiments with. lambda. hypernuclei  

Energy Technology Data Exchange (ETDEWEB)

Recent observations of hypernuclear bound states in experiments at the Brookhaven National Laboratory Alternate Gradient Synchrotron are described. Gamma rays from hypernuclei have been observed in coincidence with a (K/sup -/,..pi../sup -/) energy difference spectrum. The energy resolution and purity of the (K/sup -/,..pi../sup -/) spectrum demonstrate unambiguously the hypernuclear origin of the gamma rays. The case of ..lambda../sup 7/Li is discussed in detail as it represents the first successful application of the technique. Experiments in progress at Brookhaven on other hypernuclei and prospects for the future are discussed.

May, M.

1982-01-01

131

Experiments with ? hypernuclei  

International Nuclear Information System (INIS)

Recent observations of hypernuclear bound states in experiments at the Brookhaven National Laboratory Alternate Gradient Synchrotron are described. Gamma rays from hypernuclei have been observed in coincidence with a (K-,?-) energy difference spectrum. The energy resolution and purity of the (K-,?-) spectrum demonstrate unambiguously the hypernuclear origin of the gamma rays. The case of ?7Li is discussed in detail as it represents the first successful application of the technique. Experiments in progress at Brookhaven on other hypernuclei and prospects for the future are discussed

132

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)

133

Computer experiment in modern geophysics  

Directory of Open Access Journals (Sweden)

Full Text Available  Modern planning methods of computing experiments in geophysics are considered. The factor’s experiment have been given an account in detail. The special attention is given to the experiment tactics and solution adoption.

?.?. ??????

2009-03-01

134

Experiments with Ultrasonic Transducers.  

Science.gov (United States)

Discusses the use of 40 kHz ultrasonic transducers to study wave phenomena. Determines that the resulting wavelength of 9 mm allows acoustic experiments to be performed on a tabletop. Includes transducer characteristics and activities on speed of sound, reflection, double- and single-slit diffraction, standing waves, acoustical zone plate, and…

Greenslade, Thomas R., Jr.

1994-01-01

135

The CHORUS experiment  

Energy Technology Data Exchange (ETDEWEB)

The Chorus experiment, which aims at a search for {nu}{sub {mu}} {yields} {nu}{sub {tau}} 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.).

Konijn, J.; Oldeman, R.G.C.; Van der Poel, C.A.F.J.; Uiterwijk, J.W.E.; Eskut, E.; Onenguet, G.; Pesen, E.; Serin-Zeyrek, M.; Sever, R.; Tolun, P.; Zeyrek, M.T.; Armenise, N.; Cassol, F.; Catanesi, M.G.; Muciaccia, M.T.; Simone, S.; Hoepfner, K.; Patzak, T.; Annis, P.; Gruwe, M.; Mommaert, C.; Van der Donckt, M.; Vilain, P.; Wilquet, G.; Hahn, C.H.; Kim, J.Y.; Di Capua, E.; Luppi, C.; Ricciardi, S.; Saitta, B.; Zucchelli, P.; Brunner, J.; Capone, A.; De Jong, M.; Fabre, J.P.; Ferreira, R.; Flegel, W.; Goldberg, J.; Gorbunov, P.; Gurin, R.; Macina, D.; Meinhard, H.; Niu, E.; Oeveraas, H.; Panman, J.; Riccardi, F.; Visschers, J.L.; Weinheimer, C.; Winter, K.; Wong, H.; Nakazawa, K.; Chikawa, H.; Arik, E.; Birol, I.; Mailov, A.A.; Park, I.G.; Song, J.S.; Kodama, K.; Ushida, N.; Aoki, S.; Hara, T.; Favart, D.; Gregoire, G.; Brooijmans, G.; Herin, J.; Lemaitre, V.; Michel, L.; Artamonov, A.; Khovansky, V.; Rozanov, A.; Shamanov, V.; Smirnitsky, V.; Bonekaemper, D.; Frekers, D.; Rondeshagen, D.; Hoshino, K.; Kobayashi, M.; Nakamura, M.; Nakamura, Y.; Niu, K.; Niwa, K.; Nakano, T.; Sato, O.; Buontempo, S.; Cocco, A.; Ereditato, A.; Fiorillo, G.; Garufi, F.; Marchetti-Stasi, F.; Migliozzi, P.; Palladino, V.; Strolin, P.; Nakamura, K.; Okusawa, T.; Teranaka, M.; De Pedis, D.; Di Liberto, S.; Dore, U.; Loverre, P.F.; Mazzoni, M.A.; Maslennikov, A.; Meddi, F.; Piredda, G.; Santacesaria, R.; Di Bartolomeo, A.; Grella, G.; Romano, G.; Rosa, G.; Ogawa, S.; Shibuya, H.; Sato, Y.; Tezuka, I. [NIKHEF, Amsterdam (Netherlands)]|[Cukurova University, Adana (Turkey)]|[METU, Ankara (Turkey)]|[INFN and University, Bari (Italy)]|[Humboldt University, Berlin (Germany)]|[Inter-University Institute for High Energies (ULB-VUB), Brussels (Belgium)]|[Changwon National University, Changwon (Korea, Republic of)]|[Chonnam National University, Chonnam (Korea, Republic of)]|[Universita di Ferrara and Istituto Nationale di Fisica Nucleare (INFN), Ferrara (Italy)]|[CERN, Geneva (Switzerland); PRS, ...

1996-05-01

136

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

137

Review of PEP experiments  

International Nuclear Information System (INIS)

Recent physics results from four PEP experiments: Mark II, MAC, DELCO, and TPC are presented herewith. The topics discussed deal with flavor tagging of charmed and bottom quarks, tau and D0 lifetimes, Electroweak interference effects, searches for new particles and dE/dx measurements

138

The Doppler Pendulum Experiment  

Science.gov (United States)

An experiment to verify the Doppler effect of sound waves is described. An ultrasonic source is mounted at the end of a simple pendulum. As the pendulum swings, the rapid change of frequency can be recorded by a stationary receiver using a simple frequency-to-voltage converter. The experimental results are in close agreement with the Doppler…

Lee, C. K.; Wong, H. K.

2011-01-01

139

Experimenting with Electric Trains  

Science.gov (United States)

A simple experiment can be performed to characterize the relationship between applied voltage and velocity (steady state and transient) for an electric toy train. The results can be used by teams of students to solve a series of challenges in which they attempt to predict the performance of a particular train. Some sample challenges might include…

Wick, D. P.; Ramsdell, M. W.

2007-01-01

140

The ATRAP experiment  

CERN Multimedia

The Antihydrogen Trap (ATRAP) experiment was the first machine to accumulate cold antiprotons, produced in the AD, and combine them with positrons (antielectrons) to form antihydrogen. The study of antihydrogen in comparison with hydrogen will hopefully provide insight into the differences between matter and antimatter, especially in comparing their mass and spectra.

Laurent Guiraud

2000-01-01

141

The COMPASS experiment  

CERN Multimedia

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.

Laurent Guiraud

1999-01-01

142

Experiment R701  

CERN Multimedia

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).

1974-01-01

143

4? experiments with MEDEA  

International Nuclear Information System (INIS)

Some experimental research performed by the MEDEA collaboration are presented, among which the issue of impact parameter filtering of nuclear reactions, the timescale of hard photon and fast proton production and phase coexistence in multifragment emission. Results of an experiment at the LNS Superconducting Cyclotron facility and an interpretation in terms of nuclear liquid-vapor coexistence are reported. (authors)

144

[Near-death experiences].  

Science.gov (United States)

Near-death experiences (NDE) are lucid events that take place when a person is so physically compromised that he would die if its condition does not improve. He is unconscious, without heartbeats and breath, and with a flat-line electroencephalogram. NDE may include some of the following elements: Out of the body experiences or separation of consciousness from the physical body, increase in sensory perception and intense emotions, travel into or through a tunnel, encounter with a brilliant light and mystical beings, deceased relatives or friends, a sense of alteration in time and space, visualization of unworldly realms and a special knowledge, encounter with a barrier or boundary, and a return to the body, either voluntary or involuntary. The fact that children NDE are similar to adult NDE is an evidence that these experiences are real and not due to pre-existing beliefs, cultural influences or previous experiences in the present life. The characteristics of NDE are similar worldwide. No evidence supports the physiological, psychological, neurochemical, and neuroanatomical hypothesis proposed to explain the NDE. Multifactorial models, based on the combination of all of them (brain anoxia or hypoxia, release of serotonin, endorphins and ketamine-like compounds) have also been proposed. Although physiological, psychological, and socio-cultural factors could interact in the NDE, the hypothesis proposed consist essentially in unsupported speculations about what might be happening during the NDE. PMID:21614815

Bonilla, Ernesto

2011-03-01

145

Jets in the Experiments  

CERN Document Server

The treatments of the jets, new methods for jets reconstruction, boosted jets etc. and the challenge of the pile-up at ATLAS and CMS will be presented. Two speakers (one from each experiment) will prepare the talk together for a comprehensive and complete view , and we encourage that both speakers give 10min presentations, with the division decided amongst them.

Jennens, D; The ATLAS collaboration

2014-01-01

146

Experiences in Systemic Change  

Science.gov (United States)

This section describes the systemic change experiences in Norfolk Public Schools, Chugach School District, Indianapolis Metropolitan School District of Decatur Township, Ditmas Educational Complex, Georgia Systemic Teacher Education Program, Sun Microsystems, and Azerbaijan. It provides a description of the change process and discusses the…

Thompson, Scott; Clem, Joe; Battino, Wendy; Richter, Kurt; Reigeluth, Charles; Doll, Marcelle; Moore, Julie; Hoo, Janet; Malopinsky, Larissa V.

2006-01-01

147

The NA35 experiment  

CERN Multimedia

The NA35 experiment ran on the Super Proton Synchrotron (SPS) accelerator at CERN. It was used for the study of relativistic nucleus-nucleus collisions which were used to search for evidence of new types of quark matter. Quarks are found inside protons and neutrons, which in turn make up atoms.

1987-01-01

148

MICROWAVE EXPERIMENTS INCLUDING AVALANCHE  

OpenAIRE

The principles of the most popular microwave techniques for hot electron investigations in semiconductors are briefly described and the current status of hot electron investigations with microwaves is reviewed. The emphasis is put on the experiments which make use of the specific features of microwave heating or give an extra information in addition to that obtained from d.c. measurements.

Dienys, V.; Dargys, A.

1981-01-01

149

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

150

Kelp growth experiments  

Energy Technology Data Exchange (ETDEWEB)

Harvest yields obtainable from giant kelp plants that are adequately fertilized were investigated. The following topics are discussed: desirable characteristics in a candidate macroalga, and giant kelp as a candidate macroalga for ocean farming. Nutrient requirements, field experiments, and approaches to acquiring yield data are reviewed. (MHR)

North, W. J.

1980-01-01

151

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)

152

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.

2012-11-29

153

Spina Bifida Experience  

Medline Plus

Full Text Available ... The Spina Bifida Experience Your browser does not support iFrames. Source: National Center on Birth Defects and Developmental Disabilities ( ... 2013 Page last updated: May 14, 2013 Content source: National Center on Birth Defects and Developmental ... to Us Social Media Contact CDC Centers for Disease Control and ...

154

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)

155

Gravitation Astrometric Measurement Experiment  

OpenAIRE

The Gravitation Astrometric Measurement Experiment (GAME) is a mission concept based on astronomical techniques (astrometry and coronagraphy) for Fundamental Physics measurements, namely the \\gamma\\ and \\beta\\ parameters of the Parametrized Post-Newtonian formulation of gravitation theories extending the General Relativity. The science case also addresses cosmology, extra-solar planets, Solar system objects and fundamental stellar parameters. The mission concept is described...

Gai, Mario; Vecchiato, Alberto; Ligori, Sebastiano; Sozzetti, Alessandro; Lattanzi, Mario G.

2012-01-01

156

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

157

The OLYMPUS experiment  

Energy Technology Data Exchange (ETDEWEB)

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}{sub p}G{sup p}{sub E}/G{sup p}{sub 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 -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{sup -1} was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment.

Milner, R.; Hasell, D.K. [Massachusetts Institute of Technology, Cambridge, MA (United States); Kohl, M. [Hampton Univ., Hampton, VA (United States); Collaboration: The OLYMPUS Collaboration; and others

2013-12-15

158

Requirements from the experiments  

CERN Document Server

In this contribution, the LHC experiments desiderata in the current LHC context are presented, with a clear emphasis on 2010. For setting the scene, a brief reminder is given of the impact on the physics program of the beam energy and integrated luminosity. Possible physics run scenari are discussed and a few specific requests for special physics running conditions outlined.

Ferro-Luzzi, M

2010-01-01

159

[The AMY experiment  

International Nuclear Information System (INIS)

The AMY experiment is one of three major experiments at TRISTAN which is studying the states the matter produced in electron positron annihilations in the center of mass energy range of 50--65GeV. It provides information between the lower energy facilities such as PEP and PETRA and the new facilities SLC and LEP which are designed to operate in the region of the Z0 mass near 90GeV. In the region of the AMY experiment, interaction cross sections are near their minimum of about 100pb, making it difficult to acquire large data samples during typical running cycles. This last year has seen an accumulation of about 10---12pb-1 of integrated luminosity in the energy range from 58 to 61.7GeV. Despite this limited data sample, the AMY experiment has been extremely active in attempting to extract the minimum amount of information from the data. Some of the most significant results are discussed in this paper. 9 refs

160

Experience and Sustainable Consumption  

DEFF Research Database (Denmark)

Experience understood as experience-based consumption is by now fairly absent from the research agenda of the different theories on sustainable consumption. On the basis of Colin Campbell’s notion of romantic ethics and emotional sentimentality in modern hedonism, I claim that sustainable consumption may re-enchant ordinary consumption and thereby even become a part of marketing and the experience economy. New layers of meaning are at stake and altruistic motives come into play; doing something good for someone or something, aside from oneself, is a very strong trigger of positive emotions. Very often, however, the actual purchase does not live up to the demands of doing good in the sustainable consumption chain, and the individual might end up with a guilty conscience, which again is a possible trigger for lingering in a sentimental mode of guilt. Emotions of sentimentality may actually convince the individual that she really does care for others and thereby provide a positive experience of feeling good – even if it takes place in the universe of consumption fantasies only.

Rasmussen, Tove Arendt

2014-01-01

161

Experiments on Photoconductivity  

Science.gov (United States)

Computer-assisted experiments with CdS and CdSe photoresistors are described. The most important characteristics of the photoresistors are determined: (i) the spectral response, (ii) the photocurrent versus incident radiant power, (iii) the rise and decay time constants and (iv) the frequency response to modulated light. The photoconductivity gain…

Kraftmakher, Yaakov

2012-01-01

162

Dismantling the ALEPH experiment  

CERN Multimedia

The barrel and its two end-caps have been separated and removed from their cables; the detector will be broken into individual parts. ALEPH was an experiment on the LEP accelerator, which studied high-energy collisions between electrons and positrons from 1989 to 2000.

Patrice Loïez

2001-01-01

163

Virtual Inquiry Experiences  

Science.gov (United States)

Children in classrooms and scientists in laboratories engage in similar activities: they observe, ask questions, and try to explain phenomena. Video conferencing technology can remove the wall between the classroom and the laboratory, bringing children and scientists together. Virtual experiences and field trips can provide many of the benefits of…

Harlow, Danielle; Nilsen, Katy

2011-01-01

164

Alpha Antihydrogen Experiment  

CERN Document Server

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.

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

165

Reconstructing Playschool Experiences  

Science.gov (United States)

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…

Einarsdottir, Johanna

2011-01-01

166

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.

167

Prospects in coincidence experiments  

International Nuclear Information System (INIS)

The sensitivity of virtual photons to the local variations of the charge and magnetization densities is exploited to study the short-range part of the nucleon-nucleon interaction inside the nucleus. The possibility of varying energy, squared mass and longitudinal polarization of the photons independently enables us to disentangle the mechanisms related to the internal structure of the nucleon (e.g. quark interchange) and the contribution due to meson exchange. Coincidence experiments of the type (e,e'N) and (e,e'NN) are performed to suppress the meson contribution to the longitudinal part of the quasi-elastic peak. Four typical examples of coincidence experiments induced by virtual photons are discussed: experiments (1) on the spectroscopic structure of the quasi-elastic peak and the problem of deep lying hole states; (2) on the structure of the continuum; (3) on the low energy side of the quasi-elastic peak; and finally a three-arm coincidence experiment. (Auth.)

168

Ganges valley aerosol experiment.  

Energy Technology Data Exchange (ETDEWEB)

In June 2011, the Ganges Valley Aerosol Experiment (GVAX) began in the Ganges Valley region of India. The objective of this field campaign is to obtain measurements of clouds, precipitation, and complex aerosols to study their impact on cloud formation and monsoon activity in the region.

Kotamarthi, V.R.; Satheesh, S.K. (Environmental Science Division); (Indian Institute of Science, Bangalore, India)

2011-08-01

169

Ultrafast gas switching experiments  

International Nuclear Information System (INIS)

We describe recent experiments which studied the physics of ultrafast gas breakdown under the extreme overvoltages which occur when a high pressure gas switch is pulse charged to hundreds of kV in 1 ns or less. The highly overvolted peaking gaps produce powerful electromagnetic pulses with risetimes Khz at > 100 kV/m E field

170

Experiments with Dipole Antennas  

Science.gov (United States)

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…

Kraftmakher, Yaakov

2009-01-01

171

The NA48 experiment  

CERN Multimedia

The NA48 experiment is designed to study the Charge-Parity (CP) violation. CP violation is observed in certain very rare decays. Its study is important in understanding Nature's preference of matter over antimatter, which resulted in asymmetry soon after the Big Bang, creating a matter-dominated Universe.

1995-01-01

172

Electronics for LHC Experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

NONE

2004-07-01

173

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.)

174

The Majorana Experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

Aalseth, Craig E.; Aguayo Navarrete, Estanislao; Amman, M.; Avignone, F. T.; Back, Henning O.; Bai, Xinhua; Barabash, Alexander S.; Barbeau, P. S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Bugg, William; Burritt, Tom H.; Busch, Matthew; Capps, Greg L.; Chan, Yuen-Dat; Collar, J. I.; Cooper, R. J.; Creswick, R.; Detwiler, Jason A.; Diaz, J.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, S. R.; Ely, James H.; Esterline, James H.; Farach, H. A.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, M.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Harper, Gregory; Hazama, R.; Henning, Reyco; Hime, Andrew; Hong, H.; Hoppe, Eric W.; Hossbach, Todd W.; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, M. F.; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaRoque, B. H.; Leviner, L.; Loach, J. C.; Luke, P.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Medlin, D.; Mei, Dong-Ming; Miley, Harry S.; Miller, M. L.; Mizouni, Leila; Myers, Allan W.; Nomachi, Masaharu; Orrell, John L.; Peterson, David; Phillips, D.; Poon, Alan; Perevozchikov, O.; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Reid, Douglas J.; Rielage, Keith; Robertson, R. G. H.; Rodriguez, Larry; Ronquest, M. C.; Salazar, Harold; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Sobolev, V.; Steele, David; Strain, J.; Swift, Gary; Thomas, K.; Timkin, V.; Tornow, W.; Van Wechel, T. D.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, J. F.; Wolfe, B. A.; Xiang, W.; Yakushev, E.; Yaver, Harold; Young, A.; Yu, Chang-Hong; Yumatov, V.; Zhang, C.

2011-08-01

175

Parent Hearing Aid Experiences  

Science.gov (United States)

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…

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

2012-01-01

176

Advanced Containment Experiments (ACE)  

International Nuclear Information System (INIS)

As part of the international Advanced Containment Experiments (ACE), pre-test code predictions were performed to simulate iodine behaviour in a set of experiments in the Radioiodine Test Facility (RTF). The experiments were conducted using an epoxy painted vessel, and variables included solution chemistry, initial iodine species and radiation. The codes predicted consistently low airborne iodine fractions (< 0.25 %) and significant radiation and pH effects, including adsorption onto the painted surfaces. The subsequent experiments qualitatively confirmed these effects. However, the codes differed in predicting the detailed iodine speciation, the magnitude of radiation effects, and whether surface adsorption was predominantly above or below the water level. The reasons for the differences were inconclusive because the code input was based on inconsistent assumptions about test operations and physical parameters. In a follow-up code exercise, these input assumptions were standardised so that differences in the chemistry models could be discerned better. It is concluded that the codes are well advanced, but have incomplete models to predict the effects of painted surfaces and organic materials on iodine behaviour in a radiation field. (author)

177

Young's Interference Experiment  

Science.gov (United States)

This is a simulation of Young's double slit experiment. The simulation allows the user to change all usual parameters like wavelength and source separation. Most noteworthy, is the simulation's illustration of the path difference, and how it relates to the wavelength, for each of the points on the screen.

Fowler, Michael; Ching, Jacquie H.

2008-07-30

178

Experimenting with Guitar Strings  

Science.gov (United States)

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.

LoPresto, Michael C.

2006-11-01

179

Categorizing My Leadership Experiences  

Science.gov (United States)

In this article, the author shares his experience as a superintendent fortunate enough to be part of the Wallace Foundation's Project LEAD. Along with 11 other superintendents, he got to trade war stories with the likes of Ron Heifetz and other distinguished faculty members from the Kennedy School of Government at Harvard. The group's first…

Domenech, Daniel A.

2005-01-01

180

Spina Bifida Experience  

Medline Plus

Full Text Available ... Archive Homepage Videos Share Compartir Contact Us The Spina Bifida Experience Your browser does not support iFrames. Source: ... Disabilities (NCBDDD) Running Time: (4:54) Individuals with spina bifida and their parents talk about their lives and ...

181

A Simple Adsorption Experiment  

Science.gov (United States)

The study of adsorption phenomenon is one of the most relevant and traditional physical chemistry experiments performed by chemistry undergraduate students in laboratory courses. In this article, we describe an easy, inexpensive, and straightforward way to experimentally determine adsorption isotherms using pieces of filter paper as the adsorbent…

Guirado, Gonzalo; Ayllon, Jose A.

2011-01-01

182

Finite Order Statistic Experiment  

Science.gov (United States)

This resource consists of a Java applet and expository text. The applet is a simulation of the experiment of selecting n objects at random from the first m positive integers. The random variables of interest are the order statistics. The applet illustrates the distributions of the order statistics.

Siegrist, Kyle

183

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

184

Accelerator and reactor neutrino experiments  

CERN Document Server

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.

Nishikawa, K

2001-01-01

185

Transformations of emotional experience.  

Science.gov (United States)

In this paper the author approaches mental pain and the problems in a psychoanalytic treatment of patients with difficulties in the psychic transformation of their emotional experiences. The author is interested in the symbolic failure related to the obstruction of development of phantasies, dreams, dream-thoughts, etc. She differentiates symbolization disturbances related to hypertrophic projective identification from a detention of these primitive communications and emotional isolation. She puts forward the conjecture that one factor in the arrest of this development is the detention of projective identifications and that, when this primitive means of communication is re-established in a container-contained relationship of mutual benefit, this initiates the development of a symbolization process that can replace the pathological 'protection'. Another hypothesis she develops is that of inaccessible caesuras that, associated with the detention of projective identification, obstruct any integrative or interactive movement. This caesura and the detention of projective identifications affect mental functions needed for dealing with mental pain. The personality is left with precarious mental equipment for transforming emotional experiences. How can a psychoanalytical process stimulate the development of creative symbolization, transforming the emotional experiences and leading towards mental growth? The author approaches the clinical problem with the metaphor of the psychic birth of emotional experience. The modulation of mental pain in a container-contained relationship is a central problem for the development of the human mind. For discovering and giving a meaning to emotional experience, the infant depends on reverie, a function necessary in order to develop an evolved consciousness capable of being aware, which is different from the rudimentary consciousness that perceives but does not understand. The development of mature mental equipment is associated with the personality's attitude towards mental pain. The differentiation between psychotic, neurotic or autistic functioning depends on what defences are erected to avoid mental pain. The primary link between infant and mother is where the building of mental equipment takes place, through communicational forms that, to begin with, are not verbal. The author suggests the need for the development of an ideo-grammar (in gestures, paralinguistic forms, etc.) in primary relations, as the precursor forms that will become the matrix for the mental tools for dealing with emotional experiences in a mature way. The paper stresses the significance of the parental containing function for the development of symbolization of prenatal emotional experiences. This containment develops ideograms, transformations of sense impressions into proto-symbols, instruments that attenuate the traumatic experiences of helplessness. The author takes Bion's ideas about extending the notion of dream-work to an alpha function that goes on continually, day and night, transforming raw emotional experiences in a 'dream'. In order to acquire a meaning, facts need to be 'dreamed' in this extended sense. Meaning and truth are the nurture of the mind. Mental growth, the development of adequate tools--including reverie--for dealing with mental pain, seen from a psychoanalytic perspective including reverie, implies that the object becomes a provider of meanings. Analysis begins to aim primarily at the generation or expansion of the mental container, instead of predominantly working on unconscious contents as such. PMID:23781834

de Cortiñas, Lia Pistiner

2013-06-01

186

Hydrothermal organic synthesis experiments  

Science.gov (United States)

The serious scientific debate about spontaneous generation which raged for centuries reached a climax in the nineteenth century with the work of Spallanzani, Schwann, Tyndall, and Pasteur. These investigators demonstrated that spontaneous generation from dead organic matter does not occur. Although no aspects of these experiments addressed the issue of whether organic compounds could be synthesized abiotically, the impact of the experiments was great enough to cause many investigators to assume that life and its organic compounds were somehow fundamentally different than inorganic compounds. Meanwhile, other nineteenth-century investigators were showing that organic compounds could indeed be synthesized from inorganic compounds. In 1828 Friedrich Wohler synthesized urea in an attempt to form ammonium cyanate by heating a solution containing ammonia and cyanic acid. This experiment is generally recognized to be the first to bridge the artificial gap between organic and inorganic chemistry, but it also showed the usefulness of heat in organic synthesis. Not only does an increase in temperature enhance the rate of urea synthesis, but Walker and Hambly showed that equilibrium between urea and ammonium cyanate was attainable and reversible at 100 C. Wohler's synthesis of urea, and subsequent syntheses of organic compounds from inorganic compounds over the next several decades dealt serious blows to the 'vital force' concept which held that: (1) organic compounds owe their formation to the action of a special force in living organisms; and (2) forces which determine the behavior of inorganic compounds play no part in living systems. Nevertheless, such progress was overshadowed by Pasteur's refutation of spontaneous generation which nearly extinguished experimental investigations into the origins of life for several decades. Vitalism was dealt a deadly blow in the 1950's with Miller's famous spark-discharge experiments which were undertaken in the framework of the Oparin and Haldane hypotheses concerning the origin of life. These hypotheses were constructed on some basic assumptions which included a reduced atmosphere, and a low surface temperature for the early Earth. These ideas meshed well with the prevailing hypothesis of the 1940's and 50's that the Earth had formed through heterogeneous accretion of dust from a condensing solar nebula. Miller's experiments were extremely successful, and were followed by numerous other experiments by various investigators who employed a wide variety of energy sources for abiotic synthesis including spark discharges, ultra-violet radiation, heat, shock waves, plasmas, gamma rays, and other forms of energy. The conclusion reached from this body of work is that energy inputs can drive organic synthesis from a variety of inorganic starting materials.

Shock, Everett L.

1992-01-01

187

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.

188

The ECHo experiment  

Energy Technology Data Exchange (ETDEWEB)

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 {sup 163}Ho 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 {sup 163}Ho. 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.

Gastaldo, Loredana [Kirchhoff Institute for Physics, Heidelberg University, INF 227, 69120 Heidelberg (Germany); Collaboration: ECHo-Collaboration

2013-07-01

189

Microwave Tokamak Experiment  

International Nuclear Information System (INIS)

The Microwave Tokamak Experiment, now under construction at the Laboratory, will use microwave heating from a free-electron laser. The intense microwave pulses will be injected into the tokamak to realize several goals, including a demonstration of the effects of localized heat deposition within magnetically confined plasma, a better understanding of energy confinement in tokamaks, and use of the new free-electron laser technology for plasma heating. The experiment, soon to be operational, provides an opportunity to study dense plasmas heated by powers unprecedented in the electron-cyclotron frequency range required by the especially high magnetic fields used with the MTX and needed for reactors. 1 references, 5 figures, 3 tables

190

Galileo Probe Nephelometer Experiment  

Science.gov (United States)

The objective of the Nephelometer Experiment aboard the Probe of the Galileo mission is to explore the vertical structure and microphysical properties of the clouds and hazes in the atmosphere of Jupiter along the descent trajectory of the Probe (nominally from 0.1 to greater than 10 bars). The measurements, to be obtained at least every kilometer of the Probe descent, will provide the bases for inferences of mean particle sizes, particle number densities (and hence, opacities, mass densities, and columnar mass loading) and, for nonhighly absorbing particles, for distinguishing between solid and liquid particles. These quantities, especially the location of the cloud bases, together with other quantities derived from this and other experiments aboard the Probe, will not only yield strong evidence for the composition of the particles, but, using thermochemical models, for species abundances as well. The measurements in the upper troposphere will provide 'ground truth' data for correlation with remote sensing instruments aboard the Galileo Orbiter vehicle.

Ragent, B.; Privette, C. A.; Avrin, P.; Waring, J. G.; Carlston, C. E.; Knight, T. C. D.; Martin, J. P.

1992-01-01

191

Commissioning the CMS experiment  

CERN Document Server

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.

Camporesi, T.

2008-01-01

192

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.

193

The MOZART experiment  

International Nuclear Information System (INIS)

The MOZART experiment was carried out within the framework of the BEATRIX program, as part of the Commissariat a l'Energie Atomique contribution to this international collaboration program. This experiment was run during 45 days in the MELUSIN reactor at Grenoble. Tested ceramics were Li2O and LiAlO2 from Japan, Li2ZrO3 from USA, LiAlO2 from CEA. Influence of parameters such as temperature, sweep gas composition was investigated. Tritium residence times as a function of temperature were calculated. The comparison of the tritium release performance of the three ceramic breeders was made. This investigation has first evidenced the very good tritium release characteristics of Li2ZrO3 especially at low temperatures. (author). 7 refs.; 5 figs.; 3 tabs

194

Experiments around I-8  

CERN Multimedia

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.

1975-01-01

195

Fast critical experiments  

International Nuclear Information System (INIS)

A review of fast-neutron critical experiments is presented. The history of the assemblies falls into three overlapping phases. The first, beginning in 1948, relates to simple, compact metal assemblies with extremely high-energy neutron spectra. Examples given of this type of assembly, with critical specifications, spectral indexes, and reactivity calibration are LADY GODIVA, FLATTOP, JEZEBEL and U(16). Details are also given for early experiments with TOPSY. The second phase, starting 6 years later, covers larger, more diffuse assemblies that are still simply describable because of uniform core and reflector regions. Descriptions, spectral indices and reactivity coefficients are given for Big Ten, ZPR-3, ZPR-6, VERA, FR0, ZEBRA and SNEAK assemblies. These two categories encompass the so-called benchmark assemblies. The final phase, not discussed, started in 1955 and applies to engineering mock-ups of fast reactors. (U.K.)

196

The PHOBOS experiment  

Energy Technology Data Exchange (ETDEWEB)

PHOBOS is an experiment designed to study Au-Au collisions at RHIC. The apparatus consists of a 4{pi} multiplicity array and two spectrometer arms. The experiment is designed to measure the polar and azimuthal angles of most particles produced in the collisions and whether they are charged particles or photons. For approximately 1% of these particles, the two spectrometer arms will measure their properties in great detail. This includes many of the particles near mid-rapidity which are expected to show the most striking effects of any new physics which may occur. PHOBOS has proceeded from the Letter of Intent stage through Proposal and Conceptual Design Review to Construction Approval. It is anticipated that data taking will commence in 1999 when RHIC first provides beam.

Betts, R.R.

1995-08-01

197

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

198

Modeling Mendel's Pea Experiment  

Science.gov (United States)

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.

Jeanette Nolin

2009-01-01

199

Zipiko User Experience  

OpenAIRE

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...

Attardi, Stefano

2009-01-01

200

Experience and Entrepreneurship  

OpenAIRE

We document in two very different datasets an inverted U-shaped relationship between work experience and entrepreneurship among movers. The first dataset consists of 1,248, U.S. lawyers who were forced to seek alternative employment after the sudden dissolutions of their employers. The second consists of over 7.5 million observations on Swedish workers, where job separation is predominantly unrelated to job destruction. Our empirical results are consistent with a model of stochastic accumulat...

Rider, Christopher I.; Thompson, Peter; Kacperczyk, Aleksandra; Ta?g, Joacim

2013-01-01

201

The Sleipner experience  

Energy Technology Data Exchange (ETDEWEB)

The conference paper deals with the tragic fate when the Sleipner A`s concrete substructure sank during the construction work in August 1991. Exactly two years to the the day after the concrete gravity base sank, the new Sleipner A platform was installed, and there was gas in the pipeline all the way from Sleipner A to the terminal in Zeebrugge. The author throws light on what made this possible and how to apply the Sleipner experience to new projects. 6 figs.

Rekdal, O. [Statoil (Norway)

1993-12-31

202

THYROGLOSSAL CYST OUR EXPERIENCE  

OpenAIRE

This study shares our experiences in managing patients with thyroglossal cysts. These are common midline tumors of neck. Characteristically these masses move on protrusion of tongue due to their intimate relationship with hyoid bone. Adults commonly presented with this lesion eventhough literature review suggests it to be common in children. All these patients underwent surgery because of the presence of mass rather than any symptoms. All 30 patients taken up in this study had a normal functi...

Balasubramanian Thiagarajan; Venkatesan Ulaganathan; Geetha Ramamoorthy

2013-01-01

203

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.

204

Voyager imaging experiment  

International Nuclear Information System (INIS)

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 paper describes specific objectives of the mission and the Voyager Imaging Science Subsystem which is to be used on the flights. (Auth.)

205

Apollo lunar sounder experiment  

Science.gov (United States)

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.

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

206

The GENIE nulling experiment  

OpenAIRE

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 ...

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

2002-01-01

207

Review of EDM experiments  

International Nuclear Information System (INIS)

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.

208

Delivering ideal employee experiences.  

Science.gov (United States)

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

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

2009-05-01

209

Experiment Assistance Service  

International Nuclear Information System (INIS)

The mission of this service is the technical preparation and assistance afforded to experiments. The report presents activities related to the groups: CMS-ECAL, MANOIR, CIBLES, CFI, CMS-Trace, EI, CAS and BIAS. The Service's personnel was implied in the following directions of activity: detectors, thin layers, cryogenics and vacuum, electronics, computer science, electromechanics, metrology, data acquisition, project follow-up, mechanical design, CAO 2D-3D etc. The paper describe also the interventions and realizations of certain projects

210

The ACE experiment  

CERN Multimedia

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.

Maximilien Brice

2006-01-01

211

Quantum frequency downconversion experiment  

OpenAIRE

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 networki...

Takesue, Hiroki

2010-01-01

212

DIRAC experiment at CERN  

Directory of Open Access Journals (Sweden)

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.

Benelli Angela

2012-12-01

213

Gravitation and Experiment  

OpenAIRE

The confrontation between Einstein's gravitation theory and experimental results, notably binary pulsar data, is summarized and its significance discussed. Experiment and theory agree at the 10^{-3} level. All the basic structures of Einstein's theory (coupling of gravity to matter; propagation and self-interaction of the gravitational field, including in strong-field conditions) have been verified. However, some recent theoretical findings (cosmological relaxation toward ze...

Damour, Thibault

1997-01-01

214

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.

215

Migration experiments in Studsvik  

International Nuclear Information System (INIS)

Field experiments (two-well pulse method) on the migration of Sr and Cs in a gneiss at Studsvik on the Swedish east coast as well as supporting laboratory measurements on sorption/migration have been performed. Interconnected fractures at about 100 m depth between boreholes were located and characterized. In the boreholes measurements of resistivity, spontaneous potential, pH, Eh, curvature, temperature, gamma radiation, and radon have been performed. The fracture zones were localized, using TV-logging, and the mineralogy of the water bearing fractures in a drill core from the area determined. The main fissure filling minerals were chlorite, calcite and smectite. The groundwater composition was analyzed and it was found that the water in some cases is oversaturated with respect to calcium carbonate. Temperatures up to 12 degreeC of the pumped water have been observed, corresponding to water originating from 200-400 m depth. In laboratory batch measurements it was found that the distribution coefficient for Studsvik gneiss and possible fissure filling minerals was 0.01-0.4 m3/kg. The sorption isotherm for the gneiss was almost linear, a Freundlich isotherm with the exponent 0.89 fits well to the data. In two field experiments, performed between different boreholes, retention factors for Sr of 17 and 30, respectively, were obtained. In laboratory column experiments, performed on crushed borehole material, the retention factor was 30-35, corresponding to a distribution coefficient of 0.006-0.008 m3/kg. For Cs, injected simultanously with the Sr, the retentionfactor is > 30. (No breakthrough after 5000 h.). In both the field experiments a minor amount of the Sr was migrating almost without retention (retention factor < 2). This effect was not observed for Cs, indicating that the process causing the fast transport of Sr is selective to Sr. (author)

216

Radiotracer experiments with phytoplankton  

International Nuclear Information System (INIS)

Various experimental designs for performing radiotracer uptake and loss experiments with marine phytoplankton are discussed. The preparation of the media, treatment of radiosources, sampling of seawater and isolation of phytoplankton species are described. Special attention is given to the influence of different physico-chemical states of isotopes and other important parameters on bioaccumulation and loss of radionuclides. Several suggestions for the graphical presentation of data are given. (author)

217

The COMPASS experiment  

CERN Multimedia

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.

2006-01-01

218

The MUNU experiment  

Science.gov (United States)

We built a low background detector based on a 1 m3 time projection chamber surrounded by an active anti-Compton shielding. The detector has been installed near a nuclear reactor in Bugey for the experimental study of the overline?ee - scattering. A low threshold, around 500 keV, can be set on the electron recoil energy, giving the experiment a sensitivity to the overline?e magnetic moment down to 3·10 -11 Bohr magnetons.

Broggini, C.

1998-07-01

219

The MUNU experiment  

CERN Document Server

The MUNU experiment has been built to measure the neutrino magnetic moment at a reactor. Its central part, at the same time target and detector, is a 1 m/sup 3/ TPC filled with 3 bar of CF/sub 4/. This TPC is surrounded by active and passive vetos. Data taking has started and the measured performance of this detector will be shown. (21 refs).

Tadsen, A

2000-01-01

220

DIRAC experiment at CERN  

OpenAIRE

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.

Benelli Angela

2012-01-01

221

NRC Construction Experience  

International Nuclear Information System (INIS)

This presentation deals with the domestic and international construction experience sources. From the domestic (USA) point of view, the sources are event notifications, non-compliance reports, inspection reports, etc. Internationally, the presentation highlights the following sources: IRS and ConEx reports, Nuclear Events Web Based System (NEWS), bilateral agreements, MDEP, etc. It also mentions and describes briefly reported on concrete, rebar, fabrication and digital issues

222

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

223

Lived experiences in sound  

OpenAIRE

This thesis deals with an art form that can be used to 'give voice' to people with diverse backgrounds, character and needs, helping them to explore and bring meaning to their lives through music and sound. Drawing on his extensive experience as professional musician and producer, the researcher examines his practice of creating ‘sound documents’ that combine the talking and singing of his clients, together with electroacoustic and soundscape elements to create rich multi-layered pieces.

Nikleva, Stephen

2009-01-01

224

Critical experiment data archiving  

International Nuclear Information System (INIS)

Critical experiment facilities produced a large amount of important data during the past forty-five years. However, much useful data remains 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 Nuclear Criticality Information System. 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 us in getting the materials included in the archive

225

CANDU operating experience  

International Nuclear Information System (INIS)

The CANDU (CANada Deuterium Uranium) PHW type of nuclear electricity generating station has been developed jointly by Atomic Energy of Canada Ltd. and Ontario Hydro. This paper summarizes Ontario Hydro's operating experience using the CANDU PHW system with a focus on operating performance and costs, reliability of system components, and nuclear safety considerations to both the workers and the public. The highlights of the CANDU PHW programme in Canada are: (a) the CANDU PHW programme is based upon 37 years of operating experience with heavy-water reactors; (b) Canada has had 92 reactor-years of nuclear electric operations experience with 10 nuclear units in 4 generating stations over a period of 20 years; (c) plants for the production of the necessary heavy water have been in operation in Ontario for nearly 10 years; (d) all objectives have been met with outstanding performance: worker safety, public safety, environmental protection, reliable electricity production, and low electricity cost; (e) the achievement has been realized through total teamwork involving all scientific disciplines and all project functions (research, design, manufacturing, construction and operation). (author)

226

Digital Heritage Experiences  

DEFF Research Database (Denmark)

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.

Munar, Ana Maria; Ooi, Can-Seng

227

Detonation Shock Radius Experiments.  

Science.gov (United States)

A previous passover experiment [1] was designed to create a complex detonation transient used in validating a reduced, asymptotically derived description of detonation shock dynamics (DSD). An underlying question remained on determining the location of the initial detonation shock radius to start the DSD simulation with respect to the dynamical response of the initiation system coupling's to the main charge. This paper concentrates on determining the initial shock radius required of such DSD governed problems. `Cut-back' experiments of PBX-9501 were conducted using an initiation system that sought to optimize the transferred detonation to the desired constant radius, hemispherical shape. Streak camera techniques captured the breakout on three of the prism's surfaces for time-of-arrival data. The paper includes comparisons to simulations using constant volume explosion and high pressure hot spots. The results of the experiments and simulation efforts provide fundamental design considerations for actual explosive systems and verify necessary conditions from which the asymptotic theory of DSD may apply. [1] Lambert, D., Stewart, D. Scott and Yoo, S. and Wescott, B., ``Experimental Validation of Detonation Shock Dynamics in Condensed Explosives. J. of Fluid Mechs., Vol. 546, pp.227-253 (2006).

Lambert, David; Debes, Joshua; Stewart, Scott; Yoo, Sunhee

2007-06-01

228

Experiments with polarized antiprotons  

International Nuclear Information System (INIS)

Though there is a model by R.A. Bryan and R.J.N. Phillips (B-P model) as the one describing proton-antiproton two body scattering and total cross section in low energy region, this model satisfies only a part of the experimental results on the films taken with the CERN 80 cm hydrogen bubble chamber, but does not satisfy the remainder. Tokyo group investigated such B-P model, and was able to obtain the result well explaining the experimental results by adjusting the ?-N coupling constant. The group has also investigated the possibility on polarized antiproton beam. If the polarized antiproton beam can be realized, the systematic research on baryon-antibaryon system may be advanced through the large variety of experiments in this field by injecting the polarized beam into a bubble chamber. Carbon is a very good polarizer in proton-carbon scattering. If carbon shows the similar polarizing power in antiproton-carbon scattering to that, the polarized anti-proton beam may be realized. Therefore the experiments to measure anti-proton polarization has been examined. Finally, the future prospect for antiproton-carbon scattering experiments in the National Laboratory for High Energy Physics is described. (Wakatsuki, Y.)

229

ACTS broadband aeronautical experiment  

Science.gov (United States)

In the last decade, the demand for reliable data, voice, and video satellite communication links between aircraft and ground to improve air traffic control, airline management, and to meet the growing demand for passenger communications has increased significantly. It is expected that in the near future, the spectrum required for aeronautical communication services will grow significantly beyond that currently available at L-band. In anticipation of this, JPL is developing an experimental broadband aeronautical satellite communications system that will utilize NASA's Advanced Communications Technology Satellite (ACTS) as a satellite of opportunity and the technology developed under JPL's ACTS Mobile Terminal (AMT) Task to evaluate the feasibility of using K/Ka-band for these applications. The application of K/Ka-band for aeronautical satellite communications at cruise altitudes is particularly promising for several reasons: (1) the minimal amount of signal attenuation due to rain; (2) the reduced drag due to the smaller K/Ka-band antennas (as compared to the current L-band systems); and (3) the large amount of available bandwidth. The increased bandwidth available at these frequencies is expected to lead to significantly improved passenger communications - including full-duplex compressed video and multiple channel voice. A description of the proposed broadband experimental system will be presented including: (1) applications of K/Ka-band aeronautical satellite technology to U.S. industry; (2) the experiment objectives; (3) the experiment set-up; (4) experimental equipment description; and (5) industrial participation in the experiment and the benefits.

Abbe, Brian S.; Jedrey, Thomas C.; Estabrook, Polly; Agan, Martin J.

230

Copenhagen Sonic Experience Map  

DEFF Research Database (Denmark)

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.

Kreutzfeldt, Jacob

2011-01-01

231

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)

232

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

233

AGS Experiments: 1989, 1990, 1991  

Energy Technology Data Exchange (ETDEWEB)

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.

Depken, J.C.

1992-02-01

234

AGS Experiments: 1989, 1990, 1991  

Energy Technology Data Exchange (ETDEWEB)

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.

Depken, J.C.

1992-02-01

235

Experiment Dashboard monitoring system for the LHC experiments  

CERN Document Server

LHC experiments are depending on the distributed EGEE infrastructure for their core activities. The Experiment Dashboard is a monitoring framework aiming to provide for the LHC experiments the overview of their activities on the EGEE infrastructure with a special emphasis in support for the user community. Existing monitoring tools are usually focusing on a specific usage like specific Grid middleware/infrastructures, specific submission tool, etc. The Experiment Dashboard has been built to aggregate existing monitoring infrastructures (from experiment specific software, infrastructure itself, monitoring tools) and provide unified views and information correlation. Experiment Dashboard is covering different areas of the LHC activities - job processing, data transfer, and data publishing. It is deployed for four LHC experiments (CMS, ATLAS, LHCb, ALICE). Some of the core functionality of the Experiment Dashboard like job monitoring can be used for other virtual organizations. Experiment Dashboard is currently ...

Andreeva, J; Brito da Rocha, R; Herrala, J; Saiz, P; Catalin, C; Fu-Ming Tsai; Tao-Sheng; Shih-Chun Chiu

2007-01-01

236

User experience in project management  

OpenAIRE

This thesis describes one of the most recommended ways of integration user experience and its designers in the process of project management. The first part describes the domain of the user experience, what user experience is, which are the current and upcoming trends, describes the fields of user experience, along with recommendations and advices on its planning. The first part ends with an indication of the most used methods in designing the user experience. The second part describes bes...

Mavsar, Primoz?

2010-01-01

237

2169 steel waveform experiments.  

Energy Technology Data Exchange (ETDEWEB)

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.

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

2012-11-01

238

Southeast Regional Experiment Station  

Science.gov (United States)

This is the final report of the Southeast Regional Experiment Station project. The Florida Solar Energy Center (FSEC), a research institute of the University of Central Florida (UCF), has operated the Southeast Regional Experiment Station (SE RES) for the US Department of Energy (DOE) since September 1982. Sandia National Laboratories, Albuquerque (SNLA) provides technical program direction for both the SE RES and the Southwest Regional Experiment Station (SW RES) located at the Southwest Technology Development Institute at Las Cruces, New Mexico. This cooperative effort serves a critical role in the national photovoltaic program by conducting system evaluations, design assistance and technology transfer to enhance the cost-effective utilization and development of photovoltaic technology. Initially, the research focus of the SE RES program centered on utility-connected PV systems and associated issues. In 1987, the SE RES began evaluating amorphous silicon (a-Si) thin-film PV modules for application in utility-interactive systems. Stand-alone PV systems began receiving increased emphasis at the SE RES in 1986. Research projects were initiated that involved evaluation of vaccine refrigeration, water pumping and other stand-alone power systems. The results of this work have led to design optimization techniques and procedures for the sizing and modeling of PV water pumping systems. Later recent research at the SE RES included test and evaluation of batteries and charge controllers for stand-alone PV system applications. The SE RES project provided the foundation on which FSEC achieved national recognition for its expertise in PV systems research and related technology transfer programs. These synergistic products of the SE RES illustrate the high visibility and contributions the FSEC PV program offers to the DOE.

1994-08-01

239

Collaborative engagement experiment (CEE)  

Science.gov (United States)

Unmanned ground and air systems operating in collaboration have the potential to provide future Joint Forces a significant capability for operations in complex terrain. Ground and air collaborative engagements potentially offer force conservation, perform timely acquisition and dissemination of essential combat information, and can eliminate high value and time critical targets. These engagements can also add considerably to force survivability by reducing soldier and equipment exposure during critical operations. The Office of the Secretary of Defense, Joint Robotics Program (JRP) sponsored Collaborative Engagement Experiment (CEE) is a consolidation of separate Air Force, Army and Navy collaborative efforts to provide a Joint capability. The Air Force Research Laboratory (AFRL), Material and Manufacturing Directorate, Aerospace Expeditionary Force Division, Force Protection Branch (AFRLMLQF), The Army Aviation and Missile Research, Development and Engineering Center (AMRDEC) Joint Technology Center (JTC)/Systems Integration Laboratory (SIL), and the Space and Naval Warfare Systems Center-San Diego (SSC San Diego) are conducting technical research and proof of principle for an envisioned operational concept for extended range, three dimensional, collaborative operations between unmanned systems, with enhanced situational awareness for lethal operations in complex terrain. This program will assess information requirements and conduct experiments to identify and resolve technical risks for collaborative engagements using Unmanned Ground Vehicles (UGVs) and Unmanned Aerial Vehicles (UAVs). It will research, develop and physically integrate multiple unmanned systems and conduct live collaborative experiments. Modeling and Simulation systems will be upgraded to reflect engineering fidelity levels to greater understand technical challenges to operate as a team. This paper will provide an update of a multi-year program and will concentrate primarily on the JTC/SIL efforts. Other papers will outline in detail the Air Force and Navy portions of this effort.

Wade, Robert L.; Reames, Joseph M.

2005-05-01

240

Situating Emotional Experience  

Directory of Open Access Journals (Sweden)

Full Text Available Psychological construction approaches to emotion suggest that emotional experience is situated and dynamic. Fear, for example, is typically studied in a physical danger context (e.g., threatening snake, but in the real world, it often occurs in social contexts, especially those involving social evaluation (e.g., public speaking. Understanding situated emotional experience is critical because adaptive responding is guided by situational context (e.g., inferring the intention of another in a social evaluation situation vs. monitoring the environment in a physical danger situation. In an fMRI study, we assessed situated emotional experience using a newly developed paradigm in which participants vividly imagine different scenarios from a first-person perspective, in this case scenarios involving either social evaluation or physical danger. We hypothesized that distributed neural patterns would underlie immersion in social evaluation and physical danger situations, with shared activity patterns across both situations in multimodal sensory regions and in circuitry involved in integrating salient sensory information, and with unique activity patterns for each situation type in coordinated large-scale networks that reflect situated responding. More specifically, we predicted that networks underlying the social inference and mentalizing involved in responding to a social threat (in regions that make up the “default mode” network would be reliably more active during social evaluation situations. In contrast, networks underlying the visuospatial attention and action planning involved in responding to a physical threat would be reliably more active during physical danger situations. The results supported these hypotheses. In line with emerging psychological construction approaches, the findings suggest that coordinated brain networks offer a systematic way to interpret the distributed patterns that underlie the diverse situational contexts characterizing emotional life.

ChristineDWilson-Mendenhall

2013-11-01

241

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.

242

Solar neutrino experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

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

1996-11-01

243

The MUSE experiment  

Directory of Open Access Journals (Sweden)

Full Text Available The proton radius puzzle is the difference between the proton radius as measured with electron scattering and in the excitation spectrum of atomic hydrogen, and that measured with muonic hydrogen spectroscopy. The MUSE experiment seeks to resolve this puzzle by simultaneously measuring elastic electron and muon scattering on the proton, in both charge states, thereby providing new information to the puzzle. MUSE addresses issues of two-photon effects, lepton universality and, possibly, new physics, while providing simultaneous form factor, and therefore radius, measurements with both muons and electrons.

Downie E. J.

2014-06-01

244

THYROGLOSSAL CYST OUR EXPERIENCE  

Directory of Open Access Journals (Sweden)

Full Text Available This study shares our experiences in managing patients with thyroglossal cysts. These are common midline tumors of neck. Characteristically these masses move on protrusion of tongue due to their intimate relationship with hyoid bone. Adults commonly presented with this lesion even though literature review suggests it to be common in children. All these patients underwent surgerybecause of the presence of mass rather than any symptoms. All 30 patients taken up in this study had a normal functioning thyroid in the normal position in addition to the cystic lesion.

Balasubramanian Thiagarajan

2013-01-01

245

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

246

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.

247

The OTTI space experiments  

International Nuclear Information System (INIS)

The orbiting technology tested initiative (OTTI) provides a concept for a series of space experiment platforms to be flown at 2-year interval over the next ten years. The long-term purpose of this program is to provide a convenient test-beds to simulate high radiation environments. The purposes of the first platform is to evaluate the on-orbit performance of novel, emerging, breakthrough technologies and advanced state-of-the-art devices in high radiation orbits and to provide correlations between the natural space radiation environment and the device response in the flight test-bed. This short article presents the concept of the OTTI program

248

Quantum frequency downconversion experiment  

CERN Document Server

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.

Takesue, Hiroki

2010-01-01

249

Some optical communications experiments.  

Science.gov (United States)

Experiments performed to evaluate the possibilities and limitations of beams of coherent light as carriers of wideband information are described. These include transmission of television pictures, multiplexed voice-frequency channels, and other signals over enclosed paths by both phase and amplitude modulation of optical carriers. It is shown that long-distance transmission can be achieved without serious distortion of the beam wavefront. This is verified from determinations of heterodyne detection efficiency and by direct measurements of the optical phase distribution over wavefronts which have been transmitted for distances as great as 20 miles through beam waveguides. PMID:20076346

Delange, O E

1970-05-01

250

Fuzzy experiment interpretation  

International Nuclear Information System (INIS)

A fuzzy generalization of methods for data analysis and measurement models is proposed. These methods have been applied in nuclear-physics and remote environmental diagnoses. In these methods, the parameters of the studied object as well as the adequacy of the model are determined. The used method consists of a measurement and an interpretation model. The quality of the interpretation and the reliability of the model are discussed. An example of the computer modelling of an experiment using a fuzzy model is presented

251

The LHCb Experiment  

International Nuclear Information System (INIS)

The LHCb experiment is dedicated to performing a detailed study of CP symmetry violation and rare decays of B and D mesons at the Large Hadron Collider (LHC) at CERN. In order to achieve these physics goals the LHCb spectrometer must provide excellent vertexing and tracking performance both off-line and on-line. The LHCb VELO (VErtex LOcator) is the silicon micro-strip detector which surrounds the collision point and hence is critical to these aims. During routine operation the VELO detector will be located 7 mm from the LHC beam. (author)

252

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)

253

Survey of Tokamak experiments  

International Nuclear Information System (INIS)

The survey covers the following topics:- Introduction and history of tokamak research; review of tokamak apparatus, existing and planned; remarks on measurement techniques and their limitations; main results in terms of electron and ion temperatures, plasma density, containment times, etc. Empirical scaling; range of operating densities; impurities, origin, behaviour and control (including divertors); data on fluctuations and instabilities in tokamak plasmas; data on disruptive instabilities; experiments on shaped cross-sections; present experimental evidence on ? limits; auxiliary heating; experimental and theoretical problems for the future. (author)

254

French experience with electropolishing  

International Nuclear Information System (INIS)

Following the results obtained in CHINON B1 comparing deposited activity observed on different surface finishes EDF decided to electropolish steam generator channel heads (S.G.C.H.) in order to reduce operator dose during plant maintenance. The qualification tests were performed on steam generator materials (Inconel 600 and S.S. 308 L) with the full on site operational equipment (i.e. a sealed sucker). In 1988 the 4 SGCH of NOGENT 2 were electropolished. In 1990 we observed a dose rate reduction of 45% at NOGENT 2 compared to NOGENT 1. Other French experience is electropolishing of 27 S.G.C.H., since 1988. (author)

255

Aesthetic experience of dance performances  

Directory of Open Access Journals (Sweden)

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.

Vukadinovi? Maja

2012-01-01

256

The EBEX Experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

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

257

The Nucifer Experiment  

Science.gov (United States)

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.

Cucoanes, A. S.

2014-06-01

258

The EBEX Experiment  

CERN Document Server

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...

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

259

The EBEX Experiment  

International Nuclear Information System (INIS)

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

260

The NEXT experiment  

CERN Document Server

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...

Gomez-Cadenas, Juan Jose

2014-01-01

261

Advanced Liquid Feed Experiment  

Science.gov (United States)

The Advanced Liquid Feed Experiment (ALFE) is a Hitchhiker experiment flown on board the Shuttle of STS-39 as part of the Space Test Payload-1 (STP-1). The purpose of ALFE is to evaluate new propellant management components and operations under the low gravity flight environment of the Space Shuttle for eventual use in an advanced spacecraft feed system. These components and operations include an electronic pressure regulator, an ultrasonic flowmeter, an ultrasonic point sensor gage, and on-orbit refill of an auxiliary propellant tank. The tests are performed with two transparent tanks with dyed Freon 113, observed by a camera and controlled by ground commands and an on-board computer. Results show that the electronic pressure regulator provides smooth pressure ramp-up, sustained pressure control, and the flexibility to change pressure settings in flight. The ultrasonic flowmeter accurately measures flow and detects gas ingestion. The ultrasonic point sensors function well in space, but not as a gage during sustained low-gravity conditions, as they, like other point gages, are subject to the uncertainties of propellant geometry in a given tank. Propellant transfer operations can be performed with liquid-free ullage equalization at a 20 percent fill level, gas-free liquid transfer from 20-65 percent fill level, minimal slosh, and can be automated.

Distefano, E.; Noll, C.

1993-06-01

262

IFR guiding experiments  

International Nuclear Information System (INIS)

We have developed a new technique for electrostatically guiding high-current electron beams in accelerators and for IFR (ion focused regime) propagation experiments. The new method allows transport of IREBs over curved paths for applications in circular accelerators such as Sandia's recirculating linac. This method uses a low-energy electron beam in place of a laser to ionize the channel and thereby allows the use of any background gas desired instead of being restricted to the use of organics with high-photoionization cross sections. A weak longitudinal magnetic field is applied to confine the low-energy beam, enabling one to precisely define the ionization channel. Using this method, we have guided a 1.2 MeV beam with currents exceeding 20 kA over a 3-m straight path. In these experiments with high nu/? beams, we observed the inductive erosion and also studied the effects of ion mass on channel stability. Both effects can be important for accelerator applications. The transport of high-current beams around a 900 bend is described in a companion paper. 8 figs

263

Female physicist doctoral experiences  

Science.gov (United States)

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.

Dabney, Katherine P.; Tai, Robert H.

2013-06-01

264

PAC Experiments at ISOLDE  

CERN Multimedia

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.

2002-01-01

265

Compact toroid formation experiments  

International Nuclear Information System (INIS)

We present the design and experimental performance of a compact toroid (CT) formation experiment. The device has co-axial electrode diameters of 0.9 m (inner) and 1.25 m (outer), and an electrode length of ? 1.2 m, including an expansion/drift section. The CT is formed by a 0.1--0.2 Tesla initial radial magnetic field embedded co-axial puff gas discharge. The gas puff is injected with an array of 60 pulsed solenoid driven fast valves. The formation discharge is driven by a 108 microfarad, 40 to 100 KV, 86 to 540 kilojoule 2 to 5 megamp capacitor discharge with ? 20 nanohenry initial total discharge inductance. The hardware includes transmission line connections for a Shiva Star (1300 microfarad, up to 120 KV, 0.4 megajoule) capacitor bank driven acceleration discharge. Experimental measurements include current, voltage; azimuthal, radial and axial magnetic field at numerous location; fast photography, optical spectroscopy; microwave, CO2 laser, and He-Ne laser interferometry. Auxiliary experiments include Penning ionization gauge, pressure probe, and breakdown gas trigger diagnostics of gas injection, and Hall probe measurements of magnetic field injection

266

The space experiment PAMELA  

International Nuclear Information System (INIS)

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 10-8 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

267

Stirling machine operating experience  

Energy Technology Data Exchange (ETDEWEB)

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.

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

1994-09-01

268

COLPEX - Cold Pool Experiment  

Science.gov (United States)

Planning has started towards designing a new field campaign aimed at studying the behaviour of the boundary layer over complex terrain. Of specific interest is the formation of cold-pools in valleys during stable night-time conditions. The field campaign will run continuously until the end of the winter in 2009/10. The experiment will make use of a wide variety of ground-based sensors including turbulence towers, automatic weather stations, Doppler lidar, radiation sensors and soil temperature probes. We also hope to deploy an instrumented car and a tethered balloon facility for limited periods. Data from the field campaign will be used for a number of purposes. Firstly, to increase our understanding of how the valley cold pools form and why, for instance, some valleys offer a more favourable environment for their formation than others. Secondly, to investigate the formation and dissipation of fog in complex terrain. Thirdly, the data set will also be used to help validate and develop the Met Office Unified Model at high resolution. An area for the experiment has been identified in the Shropshire/Powis area of the UK where a network of valleys and low hills exist with a typical valley width of ~1.5km and hill top to valley floor heights of 75-200m. 0m.

Wells, H.; Price, J.; Horlacher, V.; Sheridan, P. F.; Vosper, S. B.; Brown, A. R.; Mobbs, S. D.; Ross, A. N.

2009-04-01

269

Long Baseline Neutrino Experiment  

International Nuclear Information System (INIS)

The selection of Homestake Mine in Lead South Dakota by the United States' National Science Foundation (NSF) as the site for Deep Underground Science and Engineering Laboratory (DUSEL) has opened new research opportunities for neutrino physics community. The proposed Long Baseline Neutrino Experiment (LBNE) will explore the interactions and transformations of a high-intensity neutrino beam by sending it from Fermi National Accelerator Laboratory (FNAL) more than 1000 kilometers through the earth to DUSEL. DUSEL would be one of the world's deepest underground laboratory and shield the LBNE neutrino detectors from cosmic particles at a depth of 4300 meters-water-equivalent (m.w.e.). Two detector technologies are considered: a 300 to 500 kTon water Cherenkov detector deployed deep underground at a DUSEL site and a 50-100 kT Liquid Argon Time-Projection Chamber (TPC). The physics sensitivities of the proposed experiments are summarized. We find that conventional horn focused wide-band neutrino beam options from FNAL aimed at a massive detector with a baseline greater than 1000 km have the best sensitivity to CP violation and the neutrino mass hierarchy for values of the mixing angle ?13 down to 2o. (author)

270

Experimenting model deconstruction  

Science.gov (United States)

Physical soil erosion models describe erosion and transport of solids by flowing water as the interaction of the soils' resistivity to be eroded, the force of the water to entrain particles and its capacity to transport them in suspension. This has lead to concepts in which hydraulic parameters as flow velocity or composite parameters such as shear stress, stream power etc. are set into a direct relation to erosion and sediment transport. Soils' resistivity to erosion is in general represented as a threshold problem, in which a critical force is trespassed and the following increase of erosion depends on the characteristics of the sediments and the flowing water. Despite considerable efforts, these model concepts have not been able to produce more reliable and accurate reproduction and forecast of soil erosion than "simple" empirical models such as the USLE and its derivates. And there is still a lack in knowledge about the reasons for this failure. A considerable number of studies have addressed the following questions: 1) What are the main parameters of soils and flowing water influencing soil erosion?, 2) What relationship do these parameters have with the intensity and different types of soil erosion?, but only few researchers have faced the consequence: 3) Are the present concepts suitable to describe and quantify soil erosion accurately? Similar to other studies, we investigated the influence of basic parameters as grain size, slope, discharge and flow velocity on sediment transport by shallow flowing water in laboratory experiments. Variable flow was applied under different slopes on non-cohesive mobile beds. But in addition, field experiments were designed to quantify the hydraulic and erosive effects of small rills in the field. Here, small existing rills were flushed with defined flows, and flow velocity as well as transported sediments was quantified. The laboratory flume experiments clearly show a strong interaction of flow velocity, the size of the transported grains and their concentratio, affecting them the transport of sediments. The experiments also show that hydraulic parameters are not able to predict the combination of sediment detachment and transport. Moreover, the relationship between flowing water and sediment transport is shown to be complex, depending on the morphological evolution of the bed, depending again on the characteristics of the substrate. The field experiments confirm these results, and also show that under variable conditions higher transport rates than those predicted by different model concepts are not only possible, but even the common observation. We conclude from these results that soil erosion by flowing water is much more complex than reflected in model concepts: they neither reflect the process variability nor the interaction between the different dynamic parameters of flow and soils. Mechanistic concepts, in which simple or composite predictors define the dynamics of soil erosion, can not succeed in soil erosion modelling.

Seeger, Manuel; Wirtz, Stefan; Ali, Mazhar

2013-04-01

271

The Virtual Arizona Experience  

Science.gov (United States)

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.

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

2012-12-01

272

Experience Report for WOPR  

Energy Technology Data Exchange (ETDEWEB)

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.

Pope, G

2010-04-06

273

Gas Detection for Experiments  

CERN Document Server

Flammable gases are often used in detectors for physics experiments. The storage, distribution and manipulation of such flammable gases present several safety hazards. As most flammable gases cannot be detected by human senses, specific well-placed gas detection systems must be installed. Following a request from the user group and in collaboration with CERN safety officers, risk analyses are performed. An external contractor, who needs to receive detailed user requirements from CERN, performs the installations. The contract is passed on a guaranteed results basis. Co-ordination between all the CERN groups and verification of the technical installation is done by ST/AA/AS. This paper describes and focuses on the structured methodology applied to implement such installations based on goal directed project management techniques (GDPM). This useful supervision tool suited to small to medium sized projects facilitates the task of co-ordinating numerous activities to achieve a completely functional system.

Hay, D

2001-01-01

274

The Cibola flight experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

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

275

The COMPASS experiment  

CERN Document Server

The COMPASS Experiment at the CERN SPS has a broad physics program focused on the study of the spin structure of the nucleon and on hadron spectroscopy. Key measurements for the spin program are the gluon contribution to the spin of the nucleon, semi-inclusive measurements, and the first measurement of the transverse structure function $\\Delta_{T}q(x)$. Its state-of-the-art apparatus consists of a two-stage large acceptance spectrometer designed for high data rates and equipped with high-resolution tracking, particle identification and electromagnetic and hadronic calorimetry. The first year of physics run (2002) was devoted to the spin programme, using a polarised $\\mu^{+}$ beam at 160 GeV/c and a polarised $^{6}$LiD target.

Bressan, A

2004-01-01

276

Crystal Ball experiment  

International Nuclear Information System (INIS)

The Crystal Ball experiment has shown evidence of two new states of hadronic matter. Iota and theta mesons are seen in the radiative decays of the psi meson produced in electron-positron annihilations. The new theory of quantum chromodynamics is a local gauge theory which attributes the force binding quarks together to the exchange of field quanta called gluons. There exist bound states of gluons called glueballs. The properties of the new iota and theta mesons are almost exactly what is expected for these glueballs. It is by measuring the energies and angles of the gamma rays emitted in the electron-positron annihilation process that the Crystal Ball experimenters have gleaned new insight into the bizarre world of the very small, sub-nuclear particles flit through the fabric of spacetime, knowing no master but the laws of quantum mechanics

277

Electroweak experiments at LEP  

International Nuclear Information System (INIS)

These lectures try to explain to theoretical students what some of the LEP measurements are about. The author will concentrate on the Electroweak measurements. The plan of these lectures will be as follows: first , to summarize what was actually known before LEP started. Then, to describe LEP and the four experiments. A more detailed description of the apparently simple measurement of hadronic cross-sections will follow, as it provided the early and important results on the Z mass and width and on the number of neutrinos. A detour by the beam energy measurements will be made. Helicity plays a very important role in LEP physics, providing the source of forward-backward and polarization asymmetries, and will be described next. Finally the electroweak measurements will be summarized by a discussion of electroweak radiative effects and what can data tell us about them. 95 refs., 36 figs., 12 tabs

278

INITIAL COOLING EXPERIMENT (ICE)  

CERN Multimedia

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.

1979-01-01

279

CRRES plasma wave experiment  

Science.gov (United States)

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.

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

1992-08-01

280

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

281

Reviewing operational experience feedback  

International Nuclear Information System (INIS)

The purpose of this document is to provide detailed supplementary guidance to OSART experts to aid in the evaluation of operational experience feedback (OEF) programmes at nuclear power plants. The document begins by describing the objectives of an OEF programme. It goes on to indicate preparatory work and investigatory guidance for the expert. Section 5 describes attributes of an excellent OEF programme. Appended to these guidelines are examples of OEF documents from various plants. These are intended to help the expert by demonstrating the actual implementation of OEF in practice. These guidelines are in no way intended to conflict with existing national regulations and rules. A comprehensive OEF programme, as described in Section 2, would be impossible to evaluated in detail in the amount of time typically allocated for assessing OEF in an OSART review. The expert must use his or her time wisely by concentrating on those areas that appear to be the weakest

282

American Experience: Sister Aimee  

Science.gov (United States)

While today we may take for granted that organized religion has taken on some of the trappings of entertainment and a spirit for showmanship, this trend was not common place in the early 20th century. One of the persons responsible for the melding of those two very different worlds was Aimee Semple McPherson, who was highly instrumental in bringing conservative Protestantism into mainstream culture and American politics. The long-running PBS series, American Experience, recently cast their eye on McPherson's legacy, and along with their documentary, they also created this complementary website. On the site, visitors can take a virtual visit to the Angelus Temple, which served as McPherson's headquarters, and also read transcripts of interviews with scholars who have studied her work and the nature of her faith. Visitors can also view a gallery of historic images, including a photo of McPherson in front of her famed "Gospel Car".

2007-04-02

283

Streamer chamber experiments  

International Nuclear Information System (INIS)

The reactions 40Ar + KCl at eight energies from 0.36 to 1.8 GeV/u, 4He + KCl at .977 and 40Ar + BaI2 and 40Ar + Pb3O4 at .772 GeV/u measured in a Streamer Chamber experiment have been analyzed to determine the stopping power of nuclei, the degree of isotropy and thermalization achieved in central collisions, to search for collective expansion effects and to obtain compressional energies of bulk nuclear matter. Observables used were pion and proton exclusive final state measurements, ratios of total transverse to longitudinal momentum per event, momentum flux and ? production. From the systematic discrepancy of the ?-multiplicities produced in central collisions with respect to an intranuclear cascade model, compressional energies are extracted which fit a parabolic form of the nuclear matter equation of state with a compressibility constant of K = 240 MeV. (orig.)

284

Further daemon detection experiments  

CERN Document Server

The experiments on detection of daemons captured into geocentric orbits, which are based on the postulated fast decay of daemon-containing nuclei, have been continued. By properly varying the experimental parameters, it has become possible to reveal and formulate some relations governing the interaction of daemons with matter. Among them are, for instance, the emission of energetic Auger-type electrons in the capture of an atomic nucleus, the possibility of charge exchange involving the capture of a heavier nucleus etc. The decay time of a daemon-containing proton has been measured to be D \\tau ~ approx 2 mks. The daemon flux at the Earth's surface is f ~ 10^{-7} cm^-2 s^-1. One should point out, on the one hand, the reproducibility of the main results, and on the other, the desirability of building up larger statistics and employing more sophisticated experimental methods to reveal finer details in the daemon interaction with matter.

Drobyshevski, E M

2000-01-01

285

?-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

286

Wake field acceleration experiments  

International Nuclear Information System (INIS)

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

287

The SNO+ Experiment  

CERN Document Server

The SNO+ experiment is the follow-up to the Sudbury Neutrino Observatory (SNO). The heavy water that was in SNO will be replaced with a liquid scintillator of linear alkylbenzene (plus fluor). SNO+ has many physics goals including detecting pep and CNO solar neutrinos, detecting geo-neutrinos, studying reactor neutrino oscillations, serving as a supernova neutrino detector and carrying out a search for neutrinoless double beta decay by adding neodymium to the liquid scintillator. Since a large amount of 150Nd isotope can be added to SNO+, a competitive search would be possible, with sensitivity below 100 meV using natural Nd and sensitivity below 40 meV with enriched neodymium.

Chen, Mark C

2008-01-01

288

Industrial experience with titanium  

International Nuclear Information System (INIS)

Titanium is a reference material for the construction of waste containers in the Canadian Nuclear Fuel Waste Management Program. It has been in industrial service for over 30 a, often in severe corrosion environments, but it is still considered a relatively exotic material with limited operating history. This has arisen because of the aerospace applications of this material and the misconception that the high strength-to-weight ratio dominates the choice of this material. In fact, the advantage of titanium lies in its high reliability and excellent corrosion resistance. It has a proven record in seawater heat exchanger service and a demonstrated excellent reliability even in polluted water. For many reasons it is the technically correct choice of material for marine applications. In this report we review the industrial service history of titanium, particularly in hot saline environments, and demonstrate that it is a viable waste container material, based upon this industrial service history and operating experience. (author)

289

Results from LHCf Experiment  

Directory of Open Access Journals (Sweden)

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.

Tricomi Alessia

2012-06-01

290

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

291

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

292

The XMASS experiment  

Science.gov (United States)

XMASS is a single-phase liquid-xenon scintillation detector. Nearly two years of commissioning runs have been conducted until June 2012. The performance of the detector is summarized. Thanks to its excellent light yield and large target mass, competitive results were obtained in solar axion and low mass dark matter searches. In addition, the detection of galactic supernova bursts is realized to be possible. The detector is currently under refurbishment to reduce the surface contamination, and will be ready for data taking very soon. A larger scale experiment, named XMASS 1.5 is planned to be launched in the near future, where photomultiplier tubes with convex photocathodes may be used to identify surface events efficiently.

Liu, Jing; Xmass Collaboration

2014-06-01

293

Divertor characterization experiments  

International Nuclear Information System (INIS)

Recent DIII-D experiments with enhanced Scrape-off Layer (SOL) diagnostics permit detailed characterization of the SOL and divertor plasma under various operating conditions. We observe two distinct plasma modes: attached and detached divertor plasmas. Detached plasmas are characterized by plate temperatures of only 1 to 2 eV. Simulation of detached plasmas using the UEDGE code indicate that volume recombination and charge exchange play an important role in achieving detachment. When the power delivered to the plate is reduced by enhanced radiation to the point that recycled neutrals can no longer be efficiently ionized, the plate temperature drops from around 10 eV to 1-2 eV. The low temperature region extends further off the plate as the power continues to be reduced, and charge exchange processes remove momentum, reducing the plasma flow. Volume recombination becomes important when the plasma flow is reduced sufficiently to permit recombination to compete with flow to the plate

294

Divertor characterization experiments  

Energy Technology Data Exchange (ETDEWEB)

Recent DIII-D experiments with enhanced Scrape-off Layer (SOL) diagnostics permit detailed characterization of the SOL and divertor plasma under various operating conditions. We observe two distinct plasma modes: attached and detached divertor plasmas. Detached plasmas are characterized by plate temperatures of only 1 to 2 eV. Simulation of detached plasmas using the UEDGE code indicate that volume recombination and charge exchange play an important role in achieving detachment. When the power delivered to the plate is reduced by enhanced radiation to the point that recycled neutrals can no longer be efficiently ionized, the plate temperature drops from around 10 eV to 1-2 eV. The low temperature region extends further off the plate as the power continues to be reduced, and charge exchange processes remove momentum, reducing the plasma flow. Volume recombination becomes important when the plasma flow is reduced sufficiently to permit recombination to compete with flow to the plate.

Porter, G.D.; Allen, S.; Fenstermacher, M.; Hill, D.; Brown, M.; Jong, R.A,; Rognlien, T.; Rensink, M.; Smith, G.; Stambaugh, R.; Mahdavi, M.A.; Leonard, A.; West, P., Evans, T.; DIII-D Team

1996-06-18

295

Terawatt fiber pinch experiments  

International Nuclear Information System (INIS)

Fiber pinches have been found to be less prone to disruptive instabilities (m = o type) than predicted by MHD theory (pinch life time > 100 MHD growth times). Comparing different experiments, this remarkable macroscopical stability seems to scale with driver power. Fiber experiments performed at the pulseline KALIF (1,6 TW, 2 MV, 2?) show no pinch disruptions during the whole current pulse (> 120 ns) if the initial fiber radius exceeds a critical limit (> 10 ?m). From optical framing pictures it is realized that local pinch column neckings develop when the ratio of the pinch current to the initial fiber radius exceeds 15 kA/?m. This leads to local radiative collapses (micropinches) near the cathode first and up to 20 ns later near the anode as seen on X-ray streak pictures. A few ns after these short-lived (? ns) micropinches a more or less axially inhomogeneous hot (Te 300 kA) intensive hard X-ray emission starts immediately after the micropinches and no hot pinch plasma develops. Depending on power input and fiber radius the fiber ablation and ionization process lasts for more than 20 ns. It has been found that reduced power input per electron-ion pair during fiber ablation and ionization reduces initial discharge expansion whereas high power input per plasma particle during pinch phase improves the hot pinch pinch phase improves the hot pinch plasma (axial homogeneity and confinement). From these contradictory power requirements it is concluded that a solid fiber is not the best start condition for these Z-pinches that need initial pinch conductivity and compressibility in order to further improve axial homogeneity and confinement

296

The Digital Archive Experience  

DEFF Research Database (Denmark)

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.

SØndergaard, Morten

2009-01-01

297

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

298

The polarized SRF gun experiment  

Energy Technology Data Exchange (ETDEWEB)

An experiment is under way to prove the feasibility of a super-conducting RF gun for the production of polarized electrons. We report on the progress of the experiment and on simulations predicting the possibility of success.

Kewisch,J.; Ben-Zvi, I.; Rao, T.; Burrill, A.; Pate, D.; Todd, R.; Wang, E.; Bluem, H.; Holmes, D.; Shultheiss, T.

2008-10-01

299

The polarized SRF gun experiment  

International Nuclear Information System (INIS)

An experiment is under way to prove the feasibility of a super-conducting RF gun for the production of polarized electrons. We report on the progress of the experiment and on simulations predicting the possibility of success

300

Analytical Chemistry Role Playing Experiments  

Science.gov (United States)

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.

Walters, John P.

2011-04-14

301

Spina Bifida Experience: Developing Independence  

Science.gov (United States)

... Archive Homepage Videos Share Compartir Contact Us The Spina Bifida Experience: Developing Independence Your browser does not support iFrames. Related Videos Spina Bifida Experience Managing Your Own Medical Care The Importance ...

302

Spina Bifida Experience: Developing Independence  

Medline Plus

Full Text Available ... Archive Homepage Videos Share Compartir Contact Us The Spina Bifida Experience: Developing Independence Your browser does not support iFrames. Related Videos Spina Bifida Experience Managing Your Own Medical Care The Importance ...

303

Customer Experience Management in Retailing  

OpenAIRE

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...

Kamaladevi B

2009-01-01

304

THE EXPERIENCE OF ART – THE EMPIRIA OR EXPERIMENT?  

Directory of Open Access Journals (Sweden)

Full Text Available In contemporary aesthetics exists an belief, that the experience of art is the primary fact, which initiates and leads theoretical reflection, as also is the state basis of creating, valuing and the opinion on art. Present text is the test of philosophical recognition of relationship between field of products of new art as well as with context formative it experiences. Author motivates thesis, that radical changes in present art have their source in of meanings consisting on primary notion of experience changes. The present artistic practice goes away from aesthetical experience as empiria and the contemplation and used the notion of experience as experiment and investigation, which dismisses art from her proper functions and brings it rather to aggressive ideology of scientism. The recognition of this progressive change of meanings in founding the art notion of experience has the important consequences both for understanding of present art and for describing it theory.

Franciszek Chmielowski

2010-01-01

305

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

306

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

307

Antihydrogen Experiment Gravity Interferometry Spectroscopy  

CERN Multimedia

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.

Allkofer, Y R; Trezzi, D; Dassa, L; Prevedelli, M; Ferrari, G; Vaccarone, R M; Krasnicky, D; Niinikoski, T; Perini, D; Cerchiari, G; Belov, A; Kaltenbacher, T R; Boscolo, I; 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; Lagomarsino, V E; 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; Mariazzi, S; Nesteruk, K P; Eisel, W T; Carraro, C; Zavatarelli, S M

308

Early smoking experience in adolescents  

OpenAIRE

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.

Urba?n, Ro?bert

2010-01-01

309

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)

310

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

311

Mapping bicyclists’ experiences in Copenhagen  

DEFF Research Database (Denmark)

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.

Snizek, Bernhard; Sick Nielsen, Thomas Alexander

2013-01-01

312

Mapping Bicyclists’ Experiences in Copenhagen  

DEFF Research Database (Denmark)

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.

Snizek, Bernhard; Nielsen, Thomas Alexander Sick

313

Reactor shutdown experience  

International Nuclear Information System (INIS)

This section presents a regular report of summary statistics relating to recent reactor shutdown experience. The information includes both numbers of events and rates of occurrence. It was compiled from data about operating events entered into the SCSS data system by the Nuclear Operations Analysis Center at the Oak Ridge National Laboratory, covering the three-month period of July, August, and September 1987. Cumulative information, since May 1, 1984, is also shown. Updates on shutdown events included in earth reports are excluded. Table 1 lists information on shutdowns as a function of reactor power at the time of the shutdown for both boiling-water reactors (BWRs) and pressurized-water reactors (PWRs). Table 2 shows data on shutdowns by shutdown type: Real Scrams are events in which the reactor was scrammed for a valid cause; Spurious Scrams are events in which an instrument failure of other fault causes a scram not actually called for by existing reactor conditions; Non-Scram shutdowns (frequently from operating power to hot standby) do not involve actuation of the scram system, either manually or automatically. Only reactors in commercial operation are included. Table 3 lists information about shutdowns by reactor age category, both total numbers and rates in that category; it also shows cumulative results

314

Terawatt fiber pinch experiments  

International Nuclear Information System (INIS)

Pinch formation in fiber pinch experiments has been investigated in the lower terawatt regime. The main results are: (1) there are upper limits of breakdown voltage (?700 kV) and current rise rate (?20 kA/ns) beyond which leak discharges develop within the vacuum feed of the pulseline KALIF; (2) there is a lower limit of fiber radius (?10 ?m) below which pinch disruptions take place at a pinch current of >300 kA; (3) the hot (Te?1 keV) inhomogeneous pinch plasma develops typically 10 ns after local collapses (micropinches) at a pinch current >400 kA and lives for more than 50 ns; (4) neutron emission (yield of CD2 fibers ?1010) appears mostly isotropic; (5) all fiber pinches show global expansion with velocities reaching from typically 10 ?m/ns (initial expansion) to >100 ?m/ns; and (6) the power requirements for the fiber ablation process are contradictory to those for the final pinch phase

315

The 'Patient experience' revolution.  

Science.gov (United States)

We're arguably at the most pivotal time in our young profession. The ACA has provided EMS an unprecedented opportunity to become a part of the healthcare system, a move that many of us have dreamed about for decades. We need to pay attention to the changing dynamics of the environment in which we operate. The factors that currently impact hospitals, doctors and other healthcare providers will also impact us sooner than we think. Take the time to help shape our future and how we participate in this new healthcare system. It's time to focus on the patient and the patient's experience with our service. Wayne Gretzky said two important things during an interview when he was asked what makes him such a great hockey player. One was, "You miss 100% of the shots you don't take." The other was, "A good hockey player plays where the puck is. A great hockey player plays where the puck is going to be. I skate to where the puck is going to be, not where it has been." Our advice to you is to go ahead, take the shot, get ahead of the other team and focus on improved customer satisfaction sooner rather than later. PMID:24660359

Hooten, Doug; Zavadsky, Matt

2014-02-01

316

Gathering positive experience  

CERN Multimedia

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...

2009-01-01

317

L3 + Cosmics Experiment  

CERN Multimedia

%RE4 %title\\\\ \\\\The L3+C experiment takes advantage of the unique properties of the L3 muon spectrometer to get an accurate measurement of cosmic ray muons 30 m underground. A new muon trigger, readout and DAQ system have been installed, as well as a scintillator array covering the upper surfaces of the L3 magnet for timing purposes. The acceptance amounts to 200 $m^2 sr$. The data are collected independently in parallel with L3 running. In spring 2000 a scintillator array will be installed on the roof of the SX hall in order to estimate the primary energy of air showers associated with events observed in L3+C.\\\\ \\\\The cosmic ray muon momentum spectrum, the zenith angular dependence and the charge ratio are measured with high accuracy between 20 and 2000 GeV/c. The results will provide new information about the primary composition, the shower development in the atmosphere, and the inclusive pion and kaon (production-) cross sections (specifically the "$\\pi$/K ratio") at high energies. These data will also hel...

2002-01-01

318

Young students experience theory  

CERN Multimedia

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...

2004-01-01

319

CLIMEX - climate change experiment  

International Nuclear Information System (INIS)

CLIMEX was the largest scientific experiment in the world on an entire forest ecosystem and precipitation area exposed to a CO2 level twice as high as the present level and a climate with temperatures 3-5 deg C higher than today. The project also measured effects on water and waterways. The results show that the soil decomposition processes are more rapid and liberate nitrogen to water and CO2 to air. The forest has become a source of nitrogen and CO2 in stead of an absorbent. The increase leakage of nitrogen to water may worsen the pollution problems. CO2 liberated by decomposition of the soil will increase the greenhouse effect. These trends were evident after only 4 years and it is uncertain whether the alterations shall be permanent or are transition phenomena. The study concludes that if the observations are representative for the climatic changes in Norway in the future, there will be increased acidification of the lakes and waterways with a greater need of reductions in acidic precipitation and if the forest areas become a source of CO2, then Norway must reduce CO2 emissions from other sources in order to reach future CO2 aims

320

Mars brine formation experiment  

Science.gov (United States)

The presence of water-soluble cations and anions in the Martian regolith has been the subject of speculation for some time. Viking lander data provided evidence for salt-cemented crusts on the Martian surface. If the crusts observed at the two Viking landing sites are, in fact, cemented by salts, and these crusts are globally widespread, as IRTM-derived thermal inertia studies of the Martian surface seem to suggest, then evaporite deposits, probably at least in part derived from brines, are a major component of the Martian regolith. The composition of liquid brines in the subsurface, which not only may be major agents of physical weathering but may also presently constitute a major deep subsurface liquid reservoir, is currently unconstrained by experimental work. A knowledge of the chemical identity and rate of production of Martian brines is a critical first-order step toward understanding the nature of both these fluids and their precipitated evaporites. Laboratory experiments are being conducted to determine the identity and production rate of water-soluble ions that form in initially pure liquid water in contact with Mars-mixture gases and unaltered Mars-analog minerals.

Moore, Jeffrey M.; Bullock, Mark A.; Stoker, Carol R.

1993-01-01

321

The Brazilian Experience  

Energy Technology Data Exchange (ETDEWEB)

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.

Agostini, Antonio Carlos S. de

1998-12-31

322

Experiments with particle damping  

Science.gov (United States)

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.

Hollkamp, Joseph J.; Gordon, Robert W.

1998-06-01

323

[Experience with fetal pulsoxymetry].  

Science.gov (United States)

The authors have had the opportunity to do research on an embryonic pulsoxymetre in twenty cases when traditional cardiotocographic observation and clinical symptoms had indicated intrauterine risk. The results obtained have been compared with those of a control group where embryonic pulsoxymetrical observation was not effected. The comparison was effected using the same criteria. The experiment aimed at defining how specific embryonic pulsoxymetrical observation may be if used as a screening method as well as whether its application would decrease the number of Cesarian sections. During the process of pulsoxymetrical observation, with positive change of the embryonic heart function with clear as well as meconium stained amniotic fluid, if the embryonic oxygen saturation reached levels over 30%, no Cesarian section was performed. At a saturation level under 30%, two Cesarian sections were required. In the control group without pulsoxymetrical analysis four Cesarian sections had to be performed. The oxygen saturation level of the umbilical cord artery blood of babies who underwent pulsoxymetrical observation and of those born with a Cesarian delivery were almost the same, the blood pH level was acidotic. On conclusion uterine pulsoxymetrical observation objectively reflects the intrauterine distress through fetal blood oxygenation and consequently, influences the number of Cesarian sections. PMID:10976196

Koltai, M; Csécsei, K; Kovatsits, B

2000-07-30

324

Project Feedback Experience  

Energy Technology Data Exchange (ETDEWEB)

In the financial responsibility of the Karlsruhe Research Center 5 reactors and 1 reprocessing plant are being decommissioned with these activities reaching a total volume of 2 billion Euros. Three reactor projects have already been completed: The FR 2 research reactor is in the state of safe enclosure i.e., only the reactor pressure vessel and its internals are in place. Apart from that the reactor building is empty. The reactors KKN and HDR have been dismantled completely and the sites have been re-cultivated (green field) again. The state of the other projects are as follows: - Multi Purpose Research Reactor (MZFR): remote controlled dismantling of the reactor vessel and internals; - Compact Sodium Cooled Reactor (KNK): installation of the equipment for the remote controlled dismantling of the reactor tank and its internals; - Karlsruhe Reprocessing Plant (WAK): decontamination of the process cells, construction of a vitrification facility for the treatment of the high-active waste concentrate (HAWC) and commission of the equipment for the segmentation of the HAWC storage tanks. The experience gained so far with regard to the technology applied and the licensing procedure will be described and discussed in the paper. The decommissioning progress is decisively determined by the direct treatment and disposal of the generated radioactive wastes. The FZK facilities and processing units available for this purpose will be also presented. Furthermore, the consequences of establishing specific organizational units as well as of a consistent project management will be outlined. (author)

Valencia, L. [Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe (Germany)

2003-07-01

325

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

326

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.)

327

The PAMELA space experiment  

Science.gov (United States)

On 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 is comprised of 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 to 100's GeV) with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectra 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 antiparticle energy spectrum and precision studies of light nuclei and their isotopes. Moreover, PAMELA is investigating phenomena connected with solar and earth physics. After 4 years of operation in flight, PAMELA is now delivering coherent results about spectra and chemical composition of the charged cosmic radiation, allowing scenarios of production and propagation of cosmic rays to be fully established and understood.

Menn, W.; 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.; Carbone, R.; Carlson, P.; Casolino, M.; Castellini, G.; Consiglio, L.; De Pascale, M. P.; De Santis, C.; De Simone, N.; Di Felice, V.; Galper, A. M.; Gillard, W.; Grishantseva, L.; Jerse, G.; Karelin, A. V.; Koldashov, S. V.; Krutkov, S. Y.; Kvashnin, A. N.; Leonov, A.; Malakhov, V.; Malvezzi, V.; Marcelli, L.; Mayorov, A. G.; Mikhailov, V. V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Nikonov, N.; Osteria, G.; Palma, F.; Papini, P.; Pearce, M.; Picozza, P.; Pizzolotto, C.; Ricci, M.; Ricciarini, S. B.; Sarkar, R.; Rossetto, L.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stochaj, S. J.; Stockton, J. C.; Stozhkov, Y. I.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S. A.; Wu, J.; Yurkin, Y. T.; Zampa, G.; Zampa, N.; Zverev, V. G.

2013-01-01

328

Designing for profound experiences  

DEFF Research Database (Denmark)

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.

Jensen, Jesper Legaard

2014-01-01

329

Electrostatic RID experiment  

International Nuclear Information System (INIS)

The reference design of the residual ion dump (RID) for the ITER neutral beam injection (NBI) system is based on an electrostatic deflection of the residual negative and positive ions to in-line dump panels. According to 4-channels beam line concept, RID forms four narrow (about 100 mm in width) vertical channels with the aid of 5 panels (1.8 m long and 1.7 m in height). Two middle panels are negatively biased with about 20 kV. This concept has the advantage of compact design with quite moderate power density (PD) load onto the panels - peak PD is less 8 MW/m2. However, such a concept has never been tested in any working NBI system, all of them. use magnetic deflection systems with remote ion dumps. Experimental investigation of the electrostatic RID concept is now started at the test stand IREK in the Kurchatov Institute. This experiment uses positive ion beam and two panels (one panel is under negative potential) which simulate the RID channel. In the ITER beam line the RID has to work in the presence of stray magnetic field with mainly vertical component, so the main physical question is in secondary electrons production and their behaviour in the crossed electric and magnetic fields, that can have an influence on the high voltage holding and state of operability. Hence, the experimental device panels are placed inside a special magnetic system which produces rather uniform vertical magnetic field in the RID volume. (author)me. (author)

330

Chamera: A Himalayan experience  

International Nuclear Information System (INIS)

The 540 MW Chamera hydroelectric project is located on the Ravi River in the foothills of the Himalayas 500 km north of Delhi. The Chamera Constructors Consortium is made up of a joint venture of SNC Inc., Acres International, Marine Industries Limited and General Electric Canada. The consortium provides engineering, procurement, and construction management services, and supplies turbines and gates, generators and associated electrical equipment. The experience of the consortium in dealing with the Indian Government is detailed. A multi-envelope bidding system was used, with the lowest cost, technically acceptable bid receiving the contract. Misunderstandings can arise due to different perceptions of the bidding process between Canadian companies and the National Hydroelectric Power Corporation (NHPC) of the Indian government, with NHPC taking a more formal approach in contractual dealings. Export paperwork was frequently in error leading to delays in passage of goods through Indian customs. With the liberalization of the Indian trade laws there is a potential for Canada to supply a significant quantity of equipment for India's planned 38,000 MW of hydroelectric expansion. 11 figs., 2 tabs

331

Experiments on Paint Rheology  

Science.gov (United States)

We seek a better understanding of the atomization of paints for purposes of limiting the environmental impact of spray painting. However, to do so one must confront both the shear and extensional rheology of mobile non-Newtonian fluids whose very composition is often complex and even unknown. A conventional Couette rheometer yields data on paint shear behavior, but no commercial instrument is available to measure the extensional viscosity, which is believed to govern ligamentary breakup in spray painting. Here a converging-flow extensional rheometer has been built for this purpose. Flow rate and orifice pressure drop are measured and related to the rheological properties of the fluid. At first, experience was gained by visualizing in this device the flow of clear aqueous solutions of both Newtonian (glycerol) and non-Newtonian (polyacrylamide) thickeners. Commercial latex and marine paints were then tested, with the goal of characterizing their extensional behavior and the hope that they might be replaceable by simpler aqueous rheological "substitute" fluids insofar as their atomization behavior is concerned. (Research supported by the US Navy via the Penn State Applied Research Laboratory.)

Hartranft, Thomas J.; Settles, Gary S.

1998-11-01

332

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.

333

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)

334

Design of Computer Experiments  

DEFF Research Database (Denmark)

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.

Dehlendorff, Christian

2010-01-01

335

The experience sampling method: Investigating students' affective experience  

Science.gov (United States)

Improving non-cognitive outcomes such as attitudes, efficacy, and persistence in physics courses is an important goal of physics education. This investigation implemented an in-the-moment surveying technique called the Experience Sampling Method (ESM) to measure students' affective experience in physics. Measurements included: self-efficacy, cognitive efficiency, activation, intrinsic motivation, and affect. Data are presented that show contrasts in studentsâ experiences (e.g., in physics vs. non-physics courses).

Nissen, Jayson M.; Stetzer, Mackenzie R.; Shemwell, Jonathan T.

2014-02-19

336

Wall catalysis experiment on AFE. [Aeroassist Flight Experiments  

Science.gov (United States)

This paper describes the wall catalysis experiment which is planned as part of the Aeroassist Flight experiments (AFE) that will be flown from the Space Shuttle Orbiter in late 1993. Research on candidate high-catalytic efficiency overcoats for the experiment conducted in an arc-jet air stream are discussed. The temperature distribution over the AFE heat shield is also predicted using a reacting boundary layer solution that includes surface kinetics and optical properties determined from these tests.

Stewart, David A.; Kolodziej, Paul

1988-01-01

337

Experience with the jet chamber of the JADE-experiment  

International Nuclear Information System (INIS)

The jet chamber, a pictorial drift chamber used as the central track detector of the JADE experiment at PETRA, is briefly described. The present status of the spatial and dE/dx resolutions and the experience during 4 years of operation is reported. Improvement plans for the readout electronics are described and a short review of the jet chamber designed for the proposed LEP experiment OPAL is given

338

Peritoneal dialysis - experiences  

Directory of Open Access Journals (Sweden)

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.

?ur?evi?-Mirkovi? Tatjana

2010-01-01

339

An emergency exercise experience  

International Nuclear Information System (INIS)

Emergency exercises are held to satisfy regulatory requirements and to hopefully improve emergency response. Unfortunately, simply satisfying the requirement is often the principle concern of those who plan drills. Argonne National Laboratory has detailed emergency plans, and each Division is required to have an emergency exercise at least once each year. However, the pressure to minimize time taken from research efforts reduces the value of many exercises. During the past year, the Health Physics Section at ANL made an effort to optimize the information and training obtained in the time allotted for a drill. The purpose of this presentation is to share our approach and the results of one experience with the anticipation that it will stimulate others to critically look at emergency exercises in their organizations. To be of value, an emergency response exercise must have clear objectives, allow organized reporting, contain a documented follow-up critique, and provide for correction of deficiencies in training and in the emergency plan. A mock criticality incident at ANL was used to test specific emergency response capabilities. The objectives of the 45 minute exercise included testing: (1) how well Health Physics, Fire Department, and Medical personnel would deal with the unexpected find of an unconscientious, contaminated person in a high radiation field; (2) the capability to quickly predict environmental radioactivity concentration for a surprise mock stack releasentration for a surprise mock stack release of fission products; (3) the time required and accuracy for dose assessment from personnel dosimeters, criticality dosimeters and samples of blood and hair which were irradiated to known doses in the Argonne Janus reactor; (4) how well Health Physics personnel would identify and sort 'exposed persons' who had no dosimeters (small radioactive sources were hidden on select persons); and (5) how persons from the evacuated building would be accounted for. As a result of findings, special Health Physics training on criticality was provided and support capabilities are being refined. (author)

340

The isotope correlation experiment  

International Nuclear Information System (INIS)

The ESARDA working group on Isotopic Correlation Techniques, ICT and Reprocessing Input Analysis performed an Isotope Correlation Experiment, ICE with the aim to check the feasibility of the new technique. Ten input batches of the reprocessing of the KWO fuel at the WAK plant were analysed by 4 laboratories. All information to compare ICT with the gravimetric and volumetric methods was available. ICT combined with simplified reactor physics calculation was included. The main objectives of the statistical data evaluation were detection of outliers, the estimation of random errors and of systematic errors of the measurements performed by the 4 laboratories. Different methods for outlier detection, analysis of variances, Grubbs' analysis for the constant-bias model and Jaech's non-constant-bias model were applied. Some of the results of the statistical analysis may seem inconsistent which is due to the following reasons. For the statistical evaluations isotope abundance data (weight percent) as well as nuclear concentration data (atoms/initial metal atoms) were subjected to different outlier criteria before being used for further statistical evaluations. None of the four data evaluation groups performed a complete statistical data analysis which would render possible a comparison of the different methods applied since no commonly agreed statistical evaluation procedure existed. The results prove that ICT is as accurate as conventional techniques which have to rely on costly mass spectrometric isotope dilution analysis. The potential of outlier detection by ICT on the basis of the results from a single laboratory is as good as outlier detection by costly interlaboratory comparison. The application of fission product or Cm-244 correlations would be more timely than remeasurements at safeguards laboratories

341

T-12 divertor experiment  

International Nuclear Information System (INIS)

In designing tokamak devices and reactors, in the last few years, the use of elongated-cross-section plasma discharges has been proposed to improve the economic and physical parameters. Application of a quadrupole poloidal magnetic field necessary for sustaining the elongated discharge cross-section serves, in this case, to create the magnetic configuration of an axisymmetric poloidal divertor. To-day, the creation of such a combination, including an elongated plasma cross-section and a divertor and using the outer poloidal magnetic field coils, seems to be the most reasonable approach, from the point of view of design and technology. Such a divertor was produced and studied at the T-12 tokamak. A stable equilibrium configuration of a finger-ring tokamak with a divertor has been produced by superposing the magnetic fields of the plasma current, the external quadrupole coils and the copper shell currents; the reactor blanket can fulfil the function of the latter. It is shown that both a symmetric magnetic configuration with two divertors and a droplet configuration with a single divertor may be realized by controlling the plasma column position with respect to the equatorial plane. The stability of the plasma column against vertical displacement depends on this position and the distance between the separatrix points. Vertical instability stabilization has been observed. The divertor layer efficiently screens the plasma from the impurity influx from the wall and unloads impurity influx from the wall and unloads the wall from particle and energy fluxes. The results obtained from the tokamak T-12 experiment have demonstrated the capability of a system with outer poloidal field coils and a copper shell providing an elongated-cross-section plasma column with poloidal divertors. (author)

342

Modelling Lasgit experiment  

International Nuclear Information System (INIS)

Document available in extended abstract form only. A large scale gas injection test (Lasgit) is carried out at the Aespoe Hard Rock Laboratory in Sweden. Lasgit is the first demonstration project designed to study gas migration in bentonite under full-scale repository conditions. The objective of this experimental programme is to provide data to improve process understanding and test/validate modelling approaches, which might be used in performance assessment. Specific objectives are: (1) perform and interpret a large-scale gas injection test based on the KBS-3 repository design concept, (2) examine issues relating to up-scaling and its effect on gas movement and buffer performance, (3) provide additional information on the process of gas migration, and (4) provide high-quality test data to test/validate modelling approaches. The test has a number of injection possibilities, some of them essentially intended for hydration and other intended for gas injection. The modelling work is significantly complex as the water injection phases are extremely fast and thus produce high velocities of water through the interfaces. In a real repository, the interfaces are expected to close when the bentonite expands. However, in a fast test if water penetrates before the saturation of the rings, the opposite effect may be produced, i.e. interfaces opening by pore pressure development. The modelling of this type of in situ experiments requires the incorporation of a constitutive model the incorporation of a constitutive model that is able to reproduce swelling induced by hydration of the buffer. The installation of the bentonite rings is done in such a way that the contact between the clay blocks and the canister remains as a discontinuity or interface. A similar situation happens on the contact surface between bentonite blocks. It has been observed that under natural hydration, these interfaces tend to close as hydration and swelling of the bentonite progresses. Normally, the interface sealing would happen and therefore special treatment of interfaces would perhaps not be necessary. Later, when gas generation by corrosion was generated, these interfaces would play a role and hence they cannot be neglected in a model. The special case of an experiment forces to include the interfaces. The necessity of including the interfaces explicitly appears both for the short term during water injection and for the long term as gas is generated. Even with forced hydration the interfaces manage to close, especially if the bentonite has a high swelling capacity. In case of mixtures of bentonite and sand, the interface closure during an experiment may be compromised as swelling capacity is lower. In any case, gas injection and migration is likely to be controlled by the presence of these interfaces. Therefore modelling of this kind of tests, especially if the water hydration is made very fast, requires the incorporation of interfaces and will improve the capabilities of the model. The present approach considers interfaces as a zone of a given thickness which contains a so called 'embedded' discontinuity model. This is necessary to model the penetration of water during the phase of hydration and later, the pressure responses induced by gas generation. The pressure response at sensors indicates that preferential paths through the discontinuities develop. Gas injection at a point in the canister wall generates a gas propagation front. The gas fluxes are higher at the interfaces than in the bentonite body. The interfaces play a major role as the penetration of the gas takes place in a preferential way. It can be seen that gas pressure development at points situated at some distance increases very suddenly, and at some distance it remains constant. Gas outflow is permitted on the model boundary in a zone representing the fractures of the host rock. According to the model, permeability may increase up to two orders of magnitude when the peak of water or gas pressure occurs. Hydration and the induced bentonite swelling counteract the opening effect and therefor

343

Sleep paralysis as spiritual experience.  

Science.gov (United States)

This article presents an overview of the sleep paralysis experience from both a cultural and a historical perspective. The robust, complex phenomenological pattern that represents the subjective experience of sleep paralysis is documented and illustrated. Examples are given showing that, for a majority of subjects, sleep paralysis is taken to be a kind of spiritual experience. This is, in part, because of the very common perception of a non-physical 'threatening presence' that is part of the event. Examples from various cultures, including mainstream contemporary America which has no widely known tradition about sleep paralysis, are used to show that the complex pattern and spiritual interpretation are not dependent on cultural models or prior learning. This is dramatically contrary to conventional explanations of apparently 'direct' spiritual experiences, explanations that are summed up as the 'Cultural Source Hypothesis.' This aspect of sleep paralysis was not recognized through most of the twentieth century. The article examines the way that conventional modern views of spiritual experience, combined with medical ideas that labeled 'direct' spiritual experiences as psychopathological, and mainstream religious views of such experiences as heretical if not pathological, suppressed the report and discussion of these experiences in modern society. These views have resulted in confusion in the scientific literature on sleep paralysis with regard to its prevalence and core features. The article also places sleep paralysis in the context of other 'direct' spiritual experiences and offers an 'Experiential Theory' of cross-culturally distributed spiritual experiences. PMID:15881267

Hufford, David J

2005-03-01

344

Neuropsychological experiences in neurotraumatology.  

Science.gov (United States)

My work in Neurotraumatology was initiated in 1961, when I as a neuropsychologist got a position in a neurosurgical University department. The tasks were to evaluate the mental state of patients, give advices to family members regarding the mental and social prognosis of the patients and to support nurses in the initial care of the patients. Initially the methods that were made use of were tests developed by the German neurologist Kurt Goldstein and traditional psychometric tests, but it was not until the theories of A. R. Luria and his investigation method were applied that a true position as a member of the treatment team was secured. Reading Luria's book "Higher Cortical Functions in Man" made me aware of his theories. The skill to perform the investigation was acquired during visits to Luria's laboratory at the Bourdenko Neurosurgical Institute in Moscow in the nineteen-seventies. Text and material to "Luria's Neuropsychological Investigation" was published in 1974. The early work was further stimulated by the development in the neurosciences regarding brain plasticity and brain repair and experiences from visits to rehabilitation centres in the US, Yehuda Ben-Yishay's center at New York Medical School, George Prigatano's centre at the time in Oklahoma, and Lance Trexler's center at Community Hospital, Indianapolis led in 1985 to the establishment of the first post acute rehabilitation center in Europe: the Center for Rehabilitation of Brain Injury (CRBI) at the University of Copenhagen, DK. The main program was a holistic day program, six hours a day for four months in accordance with the university semesters, and an eigth months follow-up. Groups of 15 persons started together, collaborating in smaller groups. The present director of the CRBI is neuropsychologist Frank Humle. A thorough follow-up of the patients' state and improvement through the course of treatment towards social integration, including getting back to work was performed, and studies have indicated that successful integration of the traumatized patient is possible, provided that an early intensive care is succeeded by a comprehensive, individualized post-acute rehabilitation program, of which follow-up is a part, all within the frame of multidisciplinary collaboration. PMID:15986754

Christensen, A L

2005-01-01

345

Global Troposphere Experiment Project  

Science.gov (United States)

For the Global Troposphere Experiment project Pacific Exploratory Measurements West B (PEM West B), we made determinations of sulfur dioxide (SO2) and dimethyl sulfide (DMS) using gas chromatography-mass spectrometry with isotopically labelled internal standards. This technique provides measurements with precision of 1 part-per-trillion by volume below 20 pptv and 1% above 20 pptv. Measurement of DMS and SO2 were performed with a time cycle of 5-6 minutes with intermittent zero checks. The detection limits were about 1 pptv for SO2 and 2 pptv for DMS. Over 700 measurements of each compound were made in flight. Volcanic impacts on the upper troposphere were again found as a result of deep convection in the tropics. Extensive emission of SO2 from the Pacific Rim land masses were primarily observed in the lower well-mixed part of the boundary layer but also in the upper part of the boundary layer. Analyses of the SO2 data with aerosol sulfate, beryllium-7, and lead-210 indicated that SO2, contributed to half or more of the observed total oxidized sulfur (SO2 plus aerosol sulfate) in free tropospheric air. Cloud processing and rain appeared to be responsible for lower SO2 levels between 3 and 8.5 km than above or below this region. During both phases of PEM-West, dimethyl sulfide did not appear to be a major source of sulfur dioxide in the upper free troposphere over the western Pacific Ocean. In 1991 the sources Of SO2 at high altitude appeared to be both anthropogenic and volcanic with an estimated 1% being solely from DMS. The primary difference for the increase in the DMS source was the very low concentration of SO2 at high altitude. In the midlatitude region near the Asian land masses, DMS in the mixed layer was lower than in the tropical region of the western Pacific. Convective cloud systems near volcanoes in the tropical convergence in the western Pacific troposphere were a major source of SO2 at high altitudes during PEM-West B. High levels of SO2 were observed in several instances with large number concentrations of ultrafine CN above 9 km in the tropical convergence zone. Conversion of SO2, by OH to SO3 and subsequently to sulfuric acid may have been enhanced by lightning-produced NO levels exceeding 1 part per billion. Coupling of strong convection and volcanic sources of SO2 apparently is an important source of new particle formation at high altitude in the tropical convergence zone.

Bandy, Alan R.; Thornton, Donald C.

1997-01-01

346

Transverse Injection Experiment  

International Nuclear Information System (INIS)

The motion of a plasma stream injected transverse to a magnetic field has been discussed by several authors. In early experiments with the injection of a fast (50 to 70 cm/?sec) dense (1014 ion/cm3) plasma transverse to a magnetic field, a self polarization electric field was observed and the stream crossed the magnetic field with an E x B drift. The magnetic field was only slightly disturbed by the stream (| ?B/B | <0.1) while the drift across magnetic fields up to 5 kG was at approximately the velocity of the injected stream. The height of the stream in the direction of V x B is compressed as it drifts into high magnetic field regions. At the same time, electron density measurements using interferometry techniques with the He-Ne laser show that the transverse field up to 7 kG causes no appreciable spreading of the stream to take place in the direction of B. Of interest is the action of the stream as it crosses a region where magnetic field lines reverse direction about a field null line. As the stream proceeds across the separatrix between the two field line directions, the electric field must change direction if the stream drift is to continue. The stream halts in the region of the separatrix while large currents are measured along magnetic field lines connecting the front of the stream with the following portions. Insulators placed to interrupt the current allow the stream to proceed into the reversed field region. By making use of the inductance associated with the depolarization current when magnetic field lines are tied at some distance to the side of the stream, a separation of fast and slow stream components can be made. The cutoff of the slow stream component is observed with the He-Ne laser interferometry techniques. Electric field measurements at several points along the stream show some of the more complicated features of the plasma flow. (author)

347

Solar Neutrino Experiments New Physics?  

CERN Document Server

Physics beyond the simplest version of the standard electroweak model is required to reconcile the results of the chlorine and the Kamiokande solar neutrino experiments. None of the 1000 solar models in a full Monte Carlo simulation is consistent with the results of the chlorine or the Kamiokande experiments. Even if the solar models are forced articficially to have a ${}^8 B$ neutrino flux in agreement with the Kamiokande experiment, none of the fudged models agrees with the chlorine observations. This comparison shows that consistency of the chlorine and Kamiokande experiments requires some physical process that changes the shape of the ${}^8 B$ neutrino energy spectrum. The GALLEX and SAGE experiments, which currently have large statistical uncertainties, differ from the predictions of the standard solar model by $2 \\sigma$ and $3 \\sigma$, respectively. The possibility that the neutrino experiments are incorrect is briefly discussed.

Bahcall, J N

1993-01-01

348

Solar neutrino experiments: New physics?  

International Nuclear Information System (INIS)

Physics beyond the simplest version of the standard electroweak model is required to reconcile the results of the chlorine and the Kamiokande solar neutrino experiments. None of the 1000 solar models in a full Monte Carlo simulation is consistent with the results of the chlorine or the Kamiokande experiments. Event if the solar models are forced artificially to have a 8B neutrino flux in agreement with the Kamiokande experiment, none of the fudged models agrees with the chlorine observations. This comparison shows that consistency of the chlorine and Kamiokande experiments requires some physical process that changes the shape of the 8B neutrino energy spectrum. The GALLEX and SAGE experiments, which currently have large statistical uncertainties, differ from the predictions of the standard solar model by 2? and 3?, respectively. The possibility that the neutrino experiments are incorrect is briefly discussed. (author). 13 refs, 2 figs

349

Authoring Immersive Mixed Reality Experiences  

Science.gov (United States)

Creating a mixed reality experience is a complicated endeavour. From our practice as a media lab in the artistic domain we found that engineering is “only” a first step in creating a mixed reality experience. Designing the appearance and directing the user experience are equally important for creating an engaging, immersive experience. We found that mixed reality artworks provide a very good test bed for studying these topics. This chapter details three steps required for authoring mixed reality experiences: engineering, designing and directing. We will describe a platform (VGE) for creating mixed reality environments that incorporates these steps. A case study (EI4) is presented in which this platform was used to not only engineer the system, but in which an artist was given the freedom to explore the artistic merits of mixed reality as an artistic medium, which involved areas such as the look and feel, multimodal experience and interaction, immersion as a subjective emotion and game play scenarios.

Misker, Jan M. V.; van der Ster, Jelle

350

Mystical experience in the lab  

DEFF Research Database (Denmark)

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.

Andersen, Marc Nicklas; SchjØdt, Uffe

2014-01-01

351

The theory of experience orientation  

DEFF Research Database (Denmark)

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.

Jensen, Jesper Legaard

352

Playability and player experience research  

OpenAIRE

As the game industry matures and games become more and more complex, there is an increasing need to develop scientific methodologies for analyzing and measuring player experience, in order to develop a better understanding of the relationship and interactions between players and games. This panel gathers distinguished European playability and user experience experts to discuss current findings and methodological advancements within player experience and playabil...

Nacke, Lennart; Drachen, Anders; Kuikkaniemi, Kai; Niesenhaus, Joerg; Korhonen, Hannu; Hoogen, Wouter; Poels, Karolien; Ijsselsteijn, Wijnand; Kort, Yvonne

2009-01-01

353

REXIB: Remote Experiments Interface Builder  

OpenAIRE

Remote Experimentation is an educational resource that allows teachers to strengthen the practical contents of science & engineering courses. However, building up the interfaces to remote experiments is not a trivial task. Although teachers normally master the practical contents addressed by a particular remote experiment they usually lack the programming skills required to quickly build up the corresponding web interface. This paper describes the automatic generation of experiment interfaces...

Ferreira, Jose M.; Ferreira, Paulo A.; Alves, Gustavo R.; Alves, Jorge R.

2006-01-01

354

Laser driven hydrodynamic instability experiments  

International Nuclear Information System (INIS)

An extensive series of experiments has been conducted 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. Two-mode foils allow a first direct observation of mode coupling. Surface-finish experiments allow a measurement of the evolution of a broad spectrum of random initial modes

355

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)

356

Operating experience with Npps 2003  

International Nuclear Information System (INIS)

For over 30 years now the VGB TC ''Exchange of Operating Experience (ABE)'' has been exchanging experience made with nuclear reactors. Nuclear power plants from Germany, Finland, France, the Netherlands, Switzerland, Spain and Hungary are participating in this exchange of experience. The operating results obtained in 2003 and the safety-relevant incidents, major repair work, special modifications and annual dose rates are outlined. (orig.)

357

ORKA: The Golden Kaon Experiment  

OpenAIRE

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...

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

2012-01-01

358

Proton Structure and PHENIX Experiment  

CERN Document Server

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.

Qiu, Jian-Wei

2015-01-01

359

Enthusiastic Teachers, Vivid Experiments  

Science.gov (United States)

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

Moore, John W.

2000-04-01

360

Brain and conscious experience.  

Science.gov (United States)

There is a deep belief that we can attain not only a neuroscience of consciousness but a neuroscience of human consciousness. It is as if something terribly new and complex happens as the brain enlarges to its human form. Whatever this is, it triggers our capacity for self-reflection, for ennui, and for lingering moments, I would like to propose a simple, three-step suggestion. First, we should focus on what we mean when we talk about conscious experience. It is merely the awareness we have of our capacities as a species, but not the capacities themselves--only the awareness or feelings we have about them. The brain is clearly not a general purpose computing device but is a collection of circuits devoted to quite specific capacities. This is true for all brains, but what is wonderful about the human brain is that we have untold numbers of these capacities. We have more than the chimp, which has more than the monkey, which has more than the cat, which runs circles around the rat. Because we have so many specialized systems and because they can frequently do things they were not designed to do, it appears our brains have a single, general computing device. But we do not. Thus, step 1 requires that we recognize we are a collection of adaptations and, furthermore, we recognize the distinction between a species' capacities and its feelings about those capacities. Now consider step 2. Can there be any doubt that a rat at the moment of copulation is as sensorially fulfilled as a human? Of course it is. Do you think a cat does not enjoy a good piece of cod? Of course it does. Or, a monkey does not enjoy a spectacular swing? Again, it has to be true. Each species is aware of its special capacities. So, what is human consciousness? It is the very same awareness, save for the fact that we can be aware of so much more, so many wonderful things. A circuit--perhaps a single system or one duplicated over and over again--is associated with each brain capacity. The more systems a brain possesses, the greater the awareness of capacities. Think of the variations in capacity within our own species; they are not unlike the vast differences between species. Years of split-brain research have informed us that the left hemisphere has many more mental capacities than the right one. The left is capable of logical feats that the right hemisphere cannot manage. Although the right has capacities such as facial recognition systems, it is a distant second with problem-solving skills. In short, the right hemisphere's level of awareness is limited. It knows precious little about a lot of things, but the limits to human capacity are everywhere in the population. No one need be offended to realize that just as someone with normal intelligence can understand Ohm's law, others, like yours truly, are clueless about Kepler's laws. I am ignorant about them and will remain so. I am unable to be aware about what they mean for the universe. The circuits that enable me to understand these things are not present in my brain. By emphasizing specialized circuits that arise from natural selection, we see that the brain is not a unified neural net that supports a general problem-solving device. With this being understood, we can concentrate on the possibility that smaller, more manageable circuits produce awareness of a species' capacities. Holding fast to the notion of a unified neural net means we can understand human conscious experience only by figuring out the interactions of billions of neurons. That task is hopeless. My scheme is not. Hence step 3. The very same split-brain research that exposed shocking differences between the two hemispheres also showed that the human left hemisphere has the interpreter. The left brain interpreter's job is to interpret our behavior and our responses, whether cognitive or emotional, to environmental challenges. It constantly establishes a running narrative of our actions, emotions, thoughts, and dreams. It is the glue that keeps our PMID:9709824

Gazzaniga, M S

1998-01-01

361

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.)

362

Popper's Experiment: A Modern Perspective  

Directory of Open Access Journals (Sweden)

Full Text Available 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-diffraction" experiment, carried out in a different context, conclusively resolves the controversy surrounding Popper's experiment.Quanta 2012; 1: 19–32.

Tabish Qureshi

2012-11-01

363

Experiments at MIT-Bates  

International Nuclear Information System (INIS)

We have been collaborating with a group of University of Massachusetts since 1988 for experiments at MIT-Bates. Bates experiment no.89-09 (Measurement of the Elastic Magnetic Form Factor and the Threshold Breakup of 3He at High Momentum Transfer) was accepted in 1989 and performed in 1997. Data analysis of the experiment was completed using one and a half years. A new proposal, Bates-Experiment no.97-03 (Virtual Compton Scattering on the Proton Below Pion Threshold) has been scheduled in the early summer of 2000. (author)

364

The Seasat surface truth experiments  

Science.gov (United States)

A surface truth program for Seasat A is formulated in two phases: pre- and post-launch. The pre-launch phase (which includes the Marineland experiments, the JONSWAP-75 experiment, the West Coast experiment, and the altimeter experiment) is designed to provide data from aircraft over instrumented ocean sites during desirable geophysical events. The objective is to gather sufficient data for the development of algorithms which transfer space data into geophysical variables useful for applications. In the post-launch phase, the surface truth program is designed to verify and improve the algorithms developed in the pre-launch phase and also to evaluate the performance of spaceborne sensors.

Shemdin, O. H.

1976-01-01

365

OSMOSE experiment representativity studies.  

Energy Technology Data Exchange (ETDEWEB)

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.

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

2007-10-10

366

Pharmacology Experiments on the Computer.  

Science.gov (United States)

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…

Keller, Daniel

1990-01-01

367

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

368

Age Differences in Mystical Experience.  

Science.gov (United States)

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…

Levin, Jeffrey S.

1993-01-01

369

Status of the LHCb Experiment  

CERN Document Server

We present the status of the LHCb experiment which will make precision measurements of CP violation in $B$ meson decays. The motivation for the experiment and an overview of the detector design are given. The vertex detector, ring imaging Cherenkov counter, calorimeters, and trigger systems are discussed in detail. We also present the expected physics performance for selected modes.

Muheim, F

2001-01-01

370

Control rod experiments in Racine  

International Nuclear Information System (INIS)

A survey of the control-rod experiments planned within the joint CEA/CNEN-DeBeNe critical experiment RACINE is given. The applicability to both heterogeneous and homogeneous large power LMFBR-cores is discussed. Finally, the most significant results of the provisional design calculations performed on behalf of the RACINE control-rod programme are presented

371

Data processing in reflood experiments  

International Nuclear Information System (INIS)

Data Processing in reflood experiments consists of experimental data conversion and heat transfer coefficient calculation. Described are method of data processing, principle of codes, programs, examples in each process, and also problems for the future. Improvement in data processing is proceeding along with reflood experiment. (auth.)

372

Current and Future Kaon Experiments  

CERN Document Server

Kaon experiments are now focusing on searching for new physics beyond the standard model. For example, CERN NA62, J-PARC KOTO and J-PARC TREK-E36 experiments are starting up to study K->pi nu nu-bar decay modes, a lepton flavor violation, and lepton universality.

Yamanaka, Taku

2014-01-01

373

Status of the MUNU experiment  

Science.gov (United States)

The MUNU experiment, a low background 1 m 3 time projection chamber surrounded by active anti-Compton shielding, is now under way at the Bugey nuclear reactor. It is dedicated to the experimental study of overline?ee - scattering down to 500 keV. The experiment is sensitive to a overline?e magnetic moment down to 3 × 10 -11 Bohr magneton.

Jonkmans, G.

1999-05-01

374

Experiences on IGSCC crack manufacturing  

Energy Technology Data Exchange (ETDEWEB)

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).

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

1997-02-01

375

Experiments with a DC Motor  

Science.gov (United States)

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…

Kraftmakher, Yaakov

2010-01-01

376

Advanced undergraduate nuclear lifetime experiment  

International Nuclear Information System (INIS)

An experiment is described for measuring the lifetime of the 60-keV state in 237Np which is populated in the ? decay of 241Am. The technique used is the delayed coincidence method using a time-to-pulse-height converter. Advantages of this experiment for use in an advanced undergraduate laboratory course are discussed

377

Experiments on critical point nuclei  

International Nuclear Information System (INIS)

A new generation of experiments studying nuclei in spherical-deformed transition regions has been encouraged by the introduction of innovative theoretical approaches to the treatment of these nuclei, including the critical point models E(5) and X(5). Experiments and results in the A=100 and A=150 regions are discussed

378

Long baseline neutrino oscillation experiments  

International Nuclear Information System (INIS)

In this paper I will review briefly the experimental results which established the existence of neutrino mixing, the current generation of long baseline accelerator experiments, and the prospects for the future. In particular I will focus on the recent analysis of the MINOS experiment. (author)

379

Ionization Cooling for Muon Experiments  

CERN Document Server

Possible application for muon experiments such as mu2e is discussed of the initial part of the ionization cooling channel originally developed for muon collider. It is shown that with the FNAL Booster as the proton driver the mu2e sensitivity can be increased by two orders of magnitude compared to the presently considered experiment.

Alexahin, Y; Prebys, E

2014-01-01

380

Driving term experiments at CERN  

OpenAIRE

Driving Term experiments have been performed both at small [PS (Proton Synchrotron) Booster] and large accelerators [SPS (Super Proton Synchrotron)] at CERN. The theory of how to measure driving terms is reviewed. A wealth of SPS experiments is shown together with a successful comparison with model calculations. The PS Booster studies aimed at optimizing the machine performance by measuring and correcting selected driving terms.

Benedikt, M.; Schmidt, F.; Toma?s, Ricard; Urschu?tz, P.; Faus, A?ngeles

2007-01-01

381

A Classroom Experiment on Banking  

Science.gov (United States)

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…

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

2012-01-01

382

Experiences reviewing scientific C++ code  

International Nuclear Information System (INIS)

In this paper I present several issues related to the use of C++ in scientific code, drawing from my experience reviewing large bodies of such code for the Fermilab community, especially for the CDF and DOe experiments at the Fermi National Accelerator Laboratory

383

DHS Research Experience Summary  

Energy Technology Data Exchange (ETDEWEB)

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,

Venkatachalam, V

2008-10-24

384

Missing experiments in quantum mechanics  

CERN Document Server

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 particle. The two-slit experiment and AB experiment in a magnetic field was never performed and it means that they are the missing experiments of quantum mechanics. The extension of the discussion to the cosmical rays moving in the magnetic field of the Saturn magnetosphere and its rings is mentioned. It is related to the probe CASSINI. The solution of the problem in the framework of the hydrodynamical model of quantum mechanics and the nonlinear quantum mechanics is also mentioned.

Pardy, Miroslav

2008-01-01

385

REXIB: Remote Experiments Interface Builder  

Directory of Open Access Journals (Sweden)

Full Text Available Remote Experimentation is an educational resource that allows teachers to strengthen the practical contents of science & engineering courses. However, building up the interfaces to remote experiments is not a trivial task. Although teachers normally master the practical contents addressed by a particular remote experiment they usually lack the programming skills required to quickly build up the corresponding web interface. This paper describes the automatic generation of experiment interfaces through a web-accessible Java application. The application displays a list of existent modules and once the requested modules have been selected, it generates the code that enables the browser to display the experiment interface. The tools’ main advantage is enabling non-tech teachers to create their own remote experiments.

Jose M. Ferreira

2006-08-01

386

The T2K experiment  

Science.gov (United States)

The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle ?13 by observing ?e appearance in a ?? beam. It also aims to make a precision measurement of the known oscillation parameters, ?m232 and sin22?23, via ?? disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem.

Abe, K.; Abgrall, N.; Aihara, H.; Ajima, Y.; Albert, J. B.; Allan, D.; Amaudruz, P.-A.; Andreopoulos, C.; Andrieu, B.; Anerella, M. D.; Angelsen, C.; Aoki, S.; Araoka, O.; Argyriades, J.; Ariga, A.; Ariga, T.; Assylbekov, S.; de André, J. P. A. M.; Autiero, D.; Badertscher, A.; Ballester, O.; Barbi, M.; Barker, G. J.; Baron, P.; Barr, G.; Bartoszek, L.; Batkiewicz, M.; Bay, F.; Bentham, S.; Berardi, V.; Berger, B. E.; Berns, H.; Bertram, I.; Besnier, M.; Beucher, J.; Beznosko, D.; Bhadra, S.; Birney, P.; Bishop, D.; Blackmore, E.; Blaszczyk, F. d. M.; Blocki, J.; Blondel, A.; Bodek, A.; Bojechko, C.; Bouchez, J.; Boussuge, T.; Boyd, S. B.; Boyer, M.; Braam, N.; Bradford, R.; Bravar, A.; Briggs, K.; Brinson, J. D.; Bronner, C.; Brook-Roberge, D. G.; Bryant, M.; Buchanan, N.; Budd, H.; Cadabeschi, M.; Calland, R. G.; Calvet, D.; Caravaca Rodríguez, J.; Carroll, J.; Cartwright, S. L.; Carver, A.; Castillo, R.; Catanesi, M. G.; Cavata, C.; Cazes, A.; Cervera, A.; Charrier, J. P.; Chavez, C.; Choi, S.; Chollet, S.; Christodoulou, G.; Colas, P.; Coleman, J.; Coleman, W.; Collazuol, G.; Connolly, K.; Cooke, P.; Curioni, A.; Dabrowska, A.; Danko, I.; Das, R.; Davies, G. S.; Davis, S.; Day, M.; De La Broise, X.; de Perio, P.; De Rosa, G.; Dealtry, T.; Debraine, A.; Delagnes, E.; Delbart, A.; Densham, C.; Di Lodovico, F.; Di Luise, S.; Dinh Tran, P.; Dobson, J.; Doornbos, J.; Dore, U.; Drapier, O.; Druillole, F.; Dufour, F.; Dumarchez, J.; Durkin, T.; Dytman, S.; Dziewiecki, M.; Dziomba, M.; Ellison, B.; Emery, S.; Ereditato, A.; Escallier, J. E.; Escudero, L.; Esposito, L. S.; Faszer, W.; Fechner, M.; Ferrero, A.; Finch, A.; Fisher, C.; Fitton, M.; Flight, R.; Forbush, D.; Frank, E.; Fransham, K.; Fujii, Y.; Fukuda, Y.; Gallop, M.; Galymov, V.; Ganetis, G. L.; Gannaway, F. C.; Gaudin, A.; Gaweda, J.; Gendotti, A.; George, M.; Giffin, S.; Giganti, C.; Gilje, K.; Giomataris, I.; Giraud, J.; Ghosh, A. K.; Golan, T.; Goldhaber, M.; Gomez-Cadenas, J. J.; Gomi, S.; Gonin, M.; Goyette, M.; Grant, A.; Grant, N.; Grañena, F.; Greenwood, S.; Gumplinger, P.; Guzowski, P.; Haigh, M. D.; Hamano, K.; Hansen, C.; Hara, T.; Harrison, P. F.; Hartfiel, B.; Hartz, M.; Haruyama, T.; Hasanen, R.; Hasegawa, T.; Hastings, N. C.; Hastings, S.; Hatzikoutelis, A.; Hayashi, K.; Hayato, Y.; Haycock, T. D. J.; Hearty, C.; Helmer, R. L.; Henderson, R.; Herlant, S.; Higashi, N.; Hignight, J.; Hiraide, K.; Hirose, E.; Holeczek, J.; Honkanen, N.; Horikawa, S.; Hyndman, A.; Ichikawa, A. K.; Ieki, K.; Ieva, M.; Iida, M.; Ikeda, M.; Ilic, J.; Imber, J.; Ishida, T.; Ishihara, C.; Ishii, T.; Ives, S. J.; Iwasaki, M.; Iyogi, K.; Izmaylov, A.; Jamieson, B.; Johnson, R. A.; Joo, K. K.; Jover-Manas, G.; Jung, C. K.; Kaji, H.; Kajita, T.; Kakuno, H.; Kameda, J.; Kaneyuki, K.; Karlen, D.; Kasami, K.; Kasey, V.; Kato, I.; Kawamuko, H.; Kearns, E.; Kellet, L.; Khabibullin, M.; Khaleeq, M.; Khan, N.; Khotjantsev, A.; Kielczewska, D.; Kikawa, T.; Kim, J. Y.; Kim, S.-B.; Kimura, N.; Kirby, B.; Kisiel, J.; Kitching, P.; Kobayashi, T.; Kogan, G.; Koike, S.; Komorowski, T.; Konaka, A.; Kormos, L. L.; Korzenev, A.; Koseki, K.; Koshio, Y.; Kouzuma, Y.; Kowalik, K.; Kravtsov, V.; Kreslo, I.; Kropp, W.; Kubo, H.; Kubota, J.; Kudenko, Y.; Kulkarni, N.; Kurchaninov, L.; Kurimoto, Y.; Kurjata, R.; Kurosawa, Y.; Kutter, T.; Lagoda, J.; Laihem, K.; Langstaff, R.; Laveder, M.; Lawson, T. B.; Le, P. T.; Le Coguie, A.; Le Ross, M.; Lee, K. P.; Lenckowski, M.; Licciardi, C.; Lim, I. T.; Lindner, T.; Litchfield, R. P.; Longhin, A.; Lopez, G. D.; Lu, P.; Ludovici, L.; Lux, T.; Macaire, M.; Magaletti, L.; Mahn, K.; Makida, Y.; Malafis, C. J.; Malek, M.; Manly, S.; Marchionni, A.; Mark, C.; Marino, A. D.; Marone, A. J.; Marteau, J.; Martin, J. F.; Maruyama, T.; Maryon, T.; Marzec, J.; Masliah, P.; Mathie, E. L.; Matsumura, C.; Matsuoka, K.; Matveev, V.; Mavrokoridis, K.; Mazzucato, E.; McCauley, N.; McFarland, K. S.; McGrew, C.; McLachlan, T.; Mercer, I.; Messina, M.; Metcalf, W.; Metelko, C.; Mezzetto, M.; Mijakowski, P.; Miller, C. A.; Minamino, A.; Mineev, O.; Mine, S.; Minvielle, R. E.; Mituka, G.; Miura, M.; Mizouchi, K.; Mols, J.-P.; Monfregola, L.; Monmarthe, E.; Moreau, F.; Morgan, B.; Moriyama, S.; Morris, D.; Muir, A.; Murakami, A.; Muratore, J. F.; Murdoch, M.; Murphy, S.; Myslik, J.; Nagashima, G.; Nakadaira, T.; Nakahata, M.; Nakamoto, T.; Nakamura, K.; Nakayama, S.; Nakaya, T.; Naples, D.; Nelson, B.; Nicholls, T. C.; Nishikawa, K.; Nishino, H.; Nitta, K.; Nizery, F.; Nowak, J. A.; Noy, M.; Obayashi, Y.; Ogitsu, T.; Ohhata, H.; Okamura, T.; Okumura, K.; Okusawa, T.; Ohlmann, C.; Olchanski, K.; Openshaw, R.; Oser, S. M.; Otani, M.; Owen, R. A.; Oyama, Y.; Ozaki, T.; Pac, M. Y.; Palladino, V.; Paolone, V.; Paul, P.; Payne, D.; Pearce, G. F.; Pearson, C.; Perkin, J. D.; Pfleger, M.

2011-12-01

387

Parametric induction of animacy experience.  

Science.gov (United States)

Graphical displays of simple moving geometrical figures have been repeatedly used to study the attribution of animacy in human observers. Yet little is known about the relevant movement characteristics responsible for this experience. The present study introduces a novel parametric research paradigm, which allows for the experimental control of specific motion parameters and a predictable influence on the attribution of animacy. Two experiments were conducted using 3D computer animations of one or two objects systematically introducing variations in the following aspects of motion: directionality, discontinuity and responsiveness. Both experiments further varied temporal kinematics. Results showed that animacy experience increased with the time a moving object paused in the vicinity of a second object and with increasing complexity of interaction between the objects (approach and responsiveness). The experience of animacy could be successfully modulated in a parametric fashion by the systematic variation of comparably simple differential movement characteristics. PMID:18440830

Santos, Natacha S; David, Nicole; Bente, Gary; Vogeley, Kai

2008-06-01

388

Handbook on the Experience Economy  

DEFF Research Database (Denmark)

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

2013-01-01

389

Wirelessness as Experience of Transition  

Directory of Open Access Journals (Sweden)

Full Text Available The paper analyses wireless networks in terms of a concept of experience drawn from the work of William James. James' account of experience focuses closely on the effects of ongoing change, and this is particularly useful in thinking about media change. The specific experience in question here is 'wirelessness,' an experience that envelops many media, infrastructures, practices, and processes today. The paper argues that a concept of wirelessness uniquely connects together a set of perceptions, representation, materials, problems and events associated with ongoing change in contemporary media and information cultures. In analysing wirelessness as form of experience, the article examines how those feelings of ongoing change shape and inform experiences of self, otherness, place and sociality in technological-informatic environments. In describing different infrastructural and commercial dimensions of wirelessness, it pays close attention to how ‘conjunctive relations’ (James’ term such as ‘with’, ‘between’, ‘near’, and ‘inside’ arise in wireless networks, and how different kinds of intimacy and distance stem from conjunctive relations. The paper explores how wirelessness embodies and organises networked places. In this respect, the paper inverts conventional understandings of the network as ground or platform. It treats the under-represented yet highly significant embodied experiences of relations as generative of information infrastructures.

Adrian Mackenzie

2008-01-01

390

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)

391

Customer Experience Management in Retailing  

Directory of Open Access Journals (Sweden)

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.

Kamaladevi B

2010-01-01

392

Electron beam optics for the FEL experiment and IFEL experiment  

Energy Technology Data Exchange (ETDEWEB)

Electron beam transport system parameters for the FEL experiment and for the FEL experiment are given. The perturbation of the interaction region'' optics due to wiggler focussing is taken into account and a range of solutions are provided for relevant Twiss parameters in the FEL or IFEL region. Modifications of the transport optics in specific sections of the overall beam transport lines, for reasons of enhanced diagnostic capability or enhanced beam momentum analysis resolution, is also presented.

van Steenbergen, A.

1990-01-01

393

Electron beam optics for the FEL experiment and IFEL experiment  

Energy Technology Data Exchange (ETDEWEB)

Electron beam transport system parameters for the FEL experiment and for the FEL experiment are given. The perturbation of the ``interaction region`` optics due to wiggler focussing is taken into account and a range of solutions are provided for relevant Twiss parameters in the FEL or IFEL region. Modifications of the transport optics in specific sections of the overall beam transport lines, for reasons of enhanced diagnostic capability or enhanced beam momentum analysis resolution, is also presented.

van Steenbergen, A.

1990-12-31

394

Middeck 0-gravity dynamics experiment: Fluid slosh experiments  

Science.gov (United States)

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.

Vanschoor, Marthinus C.

1992-01-01

395

ORKA: The Golden Kaon Experiment  

CERN Document Server

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 with the same level of uncertainty as the well-understood Standard Model prediction allows for sensitivity to new physics at and beyond the LHC mass scale.

Worcester, E T

2012-01-01

396

ORKA: The Golden Kaon Experiment  

Science.gov (United States)

ORKA is a proposed experiment to measure the K+??+??¯ 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 K+??+??¯ 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+??+??¯ branching ratio with the same level of uncertainty as the well-understood Standard Model prediction allows for sensitivity to new physics at and beyond the LHC mass scale.

Worcester, E. T.; ORKA Collaboration

2012-12-01

397

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

398

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 (10Hz-10kHz), at the beginning of 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. (author). 14 refs., 4 figs

399

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

400

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

401

Sketching user experiences the workbook  

CERN Document Server

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

Greenberg, Saul; Marquardt, Nicolai; Buxton, Bill

2012-01-01

402

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.

403

The ATLAS Positron Experiment -- APEX  

International Nuclear Information System (INIS)

APEX -- the ATLAS Positron Experiment -- is designed to measure electrons and positrons emitted in heavy-ion collisions. Its scientific goal is to gain insight into the puzzling positron-line phenomena observed at the GSI Darmstadt. It is in operation at the ATLAS accelerator at Argonne National Lab. The assembly of the apparatus is finished and beginning 1993 the first positrons produced in heavy-ion collisions were observed. The first full scale experiment was carried out in December 1993, and the data are currently being analyzed. In this paper, the principles of operation are explained and a status report on the experiment is given

404

Experiments at CERN in 1997  

International Nuclear Information System (INIS)

This book summarises the current experimental programme at CERN. The experiments listed are taking place at one of the following machines: the Large Electron Positron Collider (LEP), the Super Proton Synchroton (SPS), the 28 GeV Proton Synchrotron (PS), including the Antiproton Decelerator (AD) for slow antiprotons and the ISOLDE facility for short-lived ions. The three experiments now approved for installation at the Large Hadron Collider (LHC) and the R and D projects aimed at the development of new detector technologies and data acquisition systems for the LHC experiments are also listed. (orig./WL)

405

The MINERvA Experiment  

Science.gov (United States)

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.

Harris, Deborah A.; Kopp, Sacha

2011-10-01

406

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.

407

AGS experiments - 1994, 1995, 1996  

Energy Technology Data Exchange (ETDEWEB)

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.

Depken, J.C.

1997-01-01

408

AGS experiments: 1993 - 1994 - 1995  

Energy Technology Data Exchange (ETDEWEB)

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.

Depken, J.C.

1996-04-01

409

Status of the EDELWEISS experiment  

International Nuclear Information System (INIS)

The status of the EDELWEISS experiment is presented. First tests of a prototype detector of the '1 kg' stage show an event rate before rejection of ?2 evt/kg/keV/day above E>20 keV, a factor ?10 improvement compared to previous runs. An unexpected category of events is evidenced and used to interpret the 'bump' events observed by the UKDMC and Saclay NaI WIMP detection experiments. Finally, the short-term perspectives of the '1 kg' stage, which should allow to sample realistic SUSY models, and the main characteristics of the EDELWEISS-II experiment are described

410

ORKA: The Golden Kaon Experiment  

International Nuclear Information System (INIS)

ORKA is a proposed experiment to measure the K+??+??¯ 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 K+??+??¯ 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+??+??¯ branching ratio with the same level of uncertainty as the well-understood Standard Model prediction allows for sensitivity to new physics at and beyond the LHC mass scale

411

Experiments Planning, Analysis, and Optimization  

CERN Document Server

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

Wu, C F Jeff

2011-01-01

412

Experiments with a dc motor  

International Nuclear Information System (INIS)

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 mechanical and electrical parameters of the motor is clearly seen. The measurements are carried out with the ScienceWorkshop data-acquisition system and the DataStudio software from PASCO scientific. The experiments are well related to university courses of electricity and magnetism and can be used in undergraduate laboratories or for lecture demonstrations.

413

The BRAHMS experiment at RHIC  

Science.gov (United States)

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.

Adamczyk, M.; Antvorskov, L.; Ashktorab, K.; Asselta, K.; Baker, E.; Bearden, I. G.; Beavis, D.; Besliu, C.; Blyakhman, Y.; Brzychczyk, J.; Budick, B.; Bøggild, H.; Chasman, C.; Christensen, C. H.; Christiansen, P.; Cibor, J.; Debbe, R.; Diaz, H.; Dutka, L.; Engelhardt, J.; Gaardhøje, J. J.; Grotowski, K.; Hagel, K.; Hammond, J.; Hansen, J. C.; Hansen, O.; Holm, A.; Holme, A. K.; Ito, H.; Jakobsen, E.; Jipa, A.; Jørdre, J. I.; Jundt, F.; Jørgensen, 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.; Løvhøiden, 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.; P?aneta, R.; Rami, F.; Rasmussen, O. B.; Röhrich, D.; Samset, B. H.; Sanders, S. J.; Scheetz, R. A.; Sørensen, J.; Sosin, Z.; Staszel, P.; Thorsteinsen, T. F.; Tveter, T. S.; Videbæk, F.; Wada, R.; Westergaard, J.; Wieloch, A.; Zgura, I. S.

2003-03-01

414

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

415

LHCb: Self managing experiment resources  

CERN Multimedia

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 informatio...

Stagni, F

2013-01-01

416

Magnetic Repulsion: An Introductory Experiment  

Science.gov (United States)

Discusses the use of a balance assembled from standard laboratory components to conduct an experiment on the repulsion between two bar magnets. Includes an analysis of data on the two-pole and four-pole models. (CC)

Romer, Alfred

1973-01-01

417

Highlights from the ATLAS Experiment  

Directory of Open Access Journals (Sweden)

Full Text Available New results by the ATLAS experiment at the LHC in top quark studies, investigations of Standard Model processes, Higgs searches, and searches for phenomena beyond the Standard Model are presented.

Seidel Sally

2014-04-01

418

GCFR benchmarks: experiments and analysis  

International Nuclear Information System (INIS)

Measurements of reaction rate ratios and neutron spectra in GCFR benchmark lattices are described. An important feature of the lattices is that rod fuel elements are used. Several data sets have been tested against the experiments and deficiencies indicated

419

The SuperCDMS Experiment  

CERN Document Server

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...

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

420

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 ...

421

Progress in Compact Toroid Experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

Dolan, Thomas James

2002-09-01

422

Managing the Fruit Fly Experiment.  

Science.gov (United States)

Describes a sophisticated version of the fruit fly experiment for teaching concepts about genetics to biology students. Provides students with the opportunity to work with live animals over an extended period. (JRH)

Jeszenszky, Arleen W.

1997-01-01

423

Spatial experiences and interaction design  

DEFF Research Database (Denmark)

IT is rapidly spreading to non-desktop environments, and is increasingly being used for post-functional purposes. Recent contributions within the field of interaction design have indicated a tight coupling between physico-spatial and experiential issues, both on a technological and on a theoretical level. However, interaction design and HCI yet has little to offer designers working with physico-spatial and experiential issues in practical design cases. In this paper, I argue that experiments that explore spatial and experiential aspects are crucial in developing the practice of interaction design. These  aspects may be brought to the forefront by engaging in, reflecting upon, and reporting from physico-spatial design experiments, and by making spatial and experience-oriented design representations part of the design process. These experiments may be supported by design representations inspired by the field of architecture

Dalsgård, Peter

2006-01-01

424

Spina Bifida Experience: Developing Independence  

Medline Plus

Full Text Available ... on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . National Center on Birth ... Us The Spina Bifida Experience: Developing Independence Your ...

425

Internet experiments: methods, guidelines, metadata  

Science.gov (United States)

The Internet experiment is now a well-established and widely used method. The present paper describes guidelines for the proper conduct of Internet experiments, e.g. handling of dropout, unobtrusive naming of materials, and pre-testing. Several methods are presented that further increase the quality of Internet experiments and help to avoid frequent errors. These methods include the "seriousness check", "warm-up," "high hurdle," and "multiple site entry" techniques, control of multiple submissions, and control of motivational confounding. Finally, metadata from sites like WEXTOR (http://wextor.org) and the web experiment list (http://genpsylab-wexlist.uzh.ch/) are reported that show the current state of Internet-based research in terms of the distribution of fields, topics, and research designs used.

Reips, Ulf-Dietrich

2009-02-01

426

Spina Bifida Experience: Developing Independence  

Medline Plus

Full Text Available ... on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . National Center on ... Us The Spina Bifida Experience: Developing Independence Your ...

427

The ASTEX/MAGE Experiment  

Science.gov (United States)

The Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange (ASTEX/MAGE) was a multinational experiment designed to study the relationship between marine chemistry, aerosols, clouds, and air/sea exchange. Several aircraft, ships, and island sites supported measurements of marine boundary layer chemistry in both pristine and polluted North Atlantic air masses in the vicinity of the Azores in June of 1992. The International Global Atmospheric Chemistry (IGAC) Program's MAGE activity organized the chemical experiments in ASTEX because such experiments are beyond the capabilities of any one platform, discipline, or nation working alone. One highlight of ASTEX/MAGE was the development of a Lagrangian experimental strategy. It offered a unique way of constraining fluxes and reaction rates by observing the effect those processes have on a tagged parcel of air.

Huebert, Barry J.; Pszenny, Alex; Blomquist, Byron

1996-02-01

428

Cavitation Nuclei: Experiments and Theory  

DEFF Research Database (Denmark)

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.

MØrch, Knud Aage

2009-01-01

429

Neutrinoless Double Beta Decay Experiments  

OpenAIRE

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...

Zuber, K.

2014-01-01

430

GCFR thermal-hydraulic experiments  

International Nuclear Information System (INIS)

The thermal-hydraulic experimental studies performed and planned for the Gas-Cooled Fast Reactor (GCFR) core assemblies are described. The experiments consist of basic studies performed to obtain correlations, and bundle experiments which provide input for code validation and design verification. These studies have been performed and are planned at European laboratories, US national laboratories, Universities in the US, and at General Atomic Company

431

Experiments at CERN in 1984  

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 Intersecting Storage Rings (ISR) have ceased functioning early this year. The four approved experiments to be done by means of the Large Electron Positron machine (LEP) are also listed. (orig./HSI)

432

Brain development, experience, and behavior.  

Science.gov (United States)

Brain development progresses through a series of stages beginning with neurogenesis and progressing to neural migration, maturation, synaptogenesis, pruning, and myelin formation. This review examines the literature on how early experiences alter brain development, including environmental events such as sensory stimuli, early stress, psychoactive drugs, parent-child relationships, peer relationships, intestinal flora, diet, and radiation. This sensitivity of the brain to early experiences has important implications for understanding neurodevelopmental disorders as well as the effect of medical interventions in children. PMID:24376085

Kolb, Bryan; Mychasiuk, Richelle; Gibb, Robbin

2014-10-01

433

The Thing about gaming experience  

OpenAIRE

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...

Alaa, Alaqra

2013-01-01

434

Highlights from the OPERA experiment  

OpenAIRE

The OPERA neutrino experiment is designed to detect ?? ? ?? oscillations in direct appearance mode. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors. It is placed in the long-baseline CERN to Gran Sasso neutrino beam (CNGS) 730 km away from the source. The running of the experiment and the extraction of data recorded in the emulsion will be described, together with the special procedures used to locate interaction vertices and detect short de...

Mauri N.

2014-01-01

435

Status of the EDELWEISS experiment  

Energy Technology Data Exchange (ETDEWEB)

The status of the EDELWEISS experiment is presented. Data taking of two prototype detectors tested in the setup designed for the '1 kg' stage show an event rate before rejection of {approx}2 evt/kg/keV/day above E > 20 keV, a factor {approx}10 improvement compared to previous detectors. An unexpected category of events is evidenced which could explain the anomalous events observed by the UKDMC and Saclay NaI WIMP detection experiments.

Chardin, G.; Benoit, A.; Berge, L.; Broniatowski, A.; Chambon, B.; Chapellier, M.; Charvin, P.; De Jesus, M.; Di Stefano, P.; Drain, D.; Dumoulin, L.; Garoche, P.; Gascon, J.; Goldbach, C.; Gros, M.; Juillard, A.; L' Hote, D.; Lesquen, A. de; Loidl, M.; Mallet, J.; Mangin, J.; Marnieros, S.; Martineau, O.; Mirabolfathi, N.; Miramonti, L.; Mosca, L.; Navick, X-F.; Nollez, G.; Pari, P.; Simon, E.; Stern, M.; Torre, J-P.; Yvon, D

2000-06-01

436

Status of the EDELWEISS experiment  

International Nuclear Information System (INIS)

The status of the EDELWEISS experiment is presented. Data taking of two prototype detectors tested in the setup designed for the '1 kg' stage show an event rate before rejection of ?2 evt/kg/keV/day above E > 20 keV, a factor ?10 improvement compared to previous detectors. An unexpected category of events is evidenced which could explain the anomalous events observed by the UKDMC and Saclay NaI WIMP detection experiments

437

LASERS IN CROSSED BEAM EXPERIMENTS  

OpenAIRE

Different possible uses of lasers in crossed beam experiments are examined. The scope is limited to low energy collisions (few tens of meV) between excited atoms and atoms or molecules. The first role of the laser in this kind of experiments is that of a selector, allowing either the preparation of the incoming channel or the analysis of the outcoming one, by selecting one definite atomic level (radiative or metastable), one class of velocities, one magnetic sublevel. In all these application...

Baudon, J.

1985-01-01

438

Current Direct Neutrino Mass Experiments  

OpenAIRE

In this contribution we review the status and perspectives of direct neutrino mass experiments. These experiments investigate the kinematics of $\\beta$-decays of specific isotopes ($^3$H, $^{187}$Re, $^{163}$Ho) to derive model-independent information on the averaged electron (anti-) neutrino mass, which is formed by the incoherent sum of the neutrino mass eigenstates contributing to the electron neutrino. We first review the kinematics of $\\beta$-decay and the determination...

Drexlin, G.; Hannen, V.; Mertens, S.; Weinheimer, C.

2013-01-01

439

Neutrino oscillation experiments at CERN  

International Nuclear Information System (INIS)

Two proposals for neutrino oscillation experiments have been submitted at CERN at this time. A Padova-Pisa-Athens-Wisconsin group proposes to use BEBC to observe ?/sub e/ events in a nearly pure ?/sub ?/ beam, and the CERN-Dortmund-Heidelberg-Saclay group proposes to use the neutrino detector presently installed in the SPS high energy neutrino beam to look for the disappearance of ?/sub ?/. The main features of the two experiments are presented and discussed

440

Popper's Experiment: A Modern Perspective  

OpenAIRE

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-di...

Tabish Qureshi

2012-01-01

441

The digital wave processing experiment  

Science.gov (United States)

A wide variety of geophysical plasmas will be investigated by the Cluster mission. The digital wave processing (DWP) experiment implements the four ESA/NASA Cluster satellites as a component of the wave experiment consortium. The processing system within the DWP will also perform particle and wave particle correlations so as to study directly wave-particle interactions. The DWP instrument employs an architecture with parallel processing and re-allocatable tasks to provide a high reliability system.

Woolliscroft, L. J. C.; Thompson, J. A.; Decreau, P. M. E.; Parrot, M.; Egeland, A.; Iversen, I. B.; Koons, H. C.; Christiansen, P. J.; Gough, M. P.; Gustafsson, G.

1988-10-01

442

The SCIFER sounding rocket experiment  

Science.gov (United States)

The sounding of the cleft on ion fountain energization region (SCIFER) experiment is described. The purpose of the SCIFER experiment was to study the upper ionosphere and cleft ion fountain by overflying Svalbard (Norway) with sounding rockets. Deep ionospheric density canyons were observed. The SCIFER demonstrated the correlation between accelerated ions, broadband low frequency electric fields, and reduced plasma density at 1400 km altitude in the pre-noon cleft.

Kintner, P. M.; Arnoldy, R.; Pollock, C.; Moore, T.; Holtet, J.; Deehr, C.; Moen, J.

1997-01-01

443

The Argon Geochronology Experiment (AGE)  

Science.gov (United States)

This viewgraph presentation reviews the Argon Geochronology Experiment (AGE). Potassium-Argon dating is shown along with cosmic ray dating exposure. The contents include a flow diagram of the Argon Geochronology Experiment, and schematic diagrams of the mass spectrometer vacuum system, sample manipulation mechanism, mineral heater oven, and the quadrupole ion trap mass spectrometer. The Laser-Induced Breakdown Spectroscopy (LIBS) Operation with elemental abundances is also described.

Swindle, T. D.; Bode, R.; Fennema, A.; Chutjian, A.; MacAskill, J. A.; Darrach, M. R.; Clegg, S. M.; Wiens, R. C.; Cremers, D.

2006-01-01

444

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.

445

The MINERvA Experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

Harris, Deborah A.; Kopp, Sacha; /Fermilab

2011-03-18

446

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

447

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

448

Sustained Spheromak Physics Experiment, SSPX  

Energy Technology Data Exchange (ETDEWEB)

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.

Hooper, E.B.

1997-05-15

449

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

450

Southern Ocean Iron Experiment (SOFex)  

Energy Technology Data Exchange (ETDEWEB)

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

Coale, Kenneth H.

2005-07-28

451

ISY-METS rocket experiment and its preparatory airplane experiment  

Science.gov (United States)

It is very important and indispensable for power supplying in space as well as to the ground to develop technologies of the microwave energy transmission. We are planning a rocket experiment (METS: Microwave Energy Transmission in Space) and its preparatory airplane experiment called MILAX (MIcrowave Lifted Aircraft eXperiment) in the International Space Year. The METS aims to verify a newly developed microwave energy transmission system for space use and to study nonlinear effects of the microwave energy beam in the space plasma environment. We will also perform a ground-based energy transmission test of the developed system by using a small airplane as a target before the launch. In this paper, we describe the newly developed active phased-array antenna in detail.

Matsumoto, H.; Kaya, N.

1992-08-01

452

IVIDIL experiment onboard the ISS  

Science.gov (United States)

The experiment IVIDIL (Influence of Vibrations on Diffusion in Liquids) is scheduled to be performed in forthcoming fall 2009 onboard the ISS, inside the SODI instrument mounted in the Glovebox on the ESA Columbus module. It is planned to carry out 39 experimental runs with each of them lasting 18 h. The objective of the experiment is threefold. After each space experiment there is a discussion about the role of onboard g-jitters. One objective is to identify the limit level of vibrations below which g-jitter does not play a role for onboard experiments. This objective will be fulfilled by observing diffusive process under different imposed controlled vibrations. Second, to perform precise measurements of diffusion and thermodiffusion coefficients for two binary mixtures in the absence of buoyant convection. The measured values can be used as standards for ground experiments. Two aqueous solutions will be used as test fluids: two different concentrations of water-isopropanol (IPA) with positive and negative Soret effect. This objective also includes studying the influence of vibrations on the measured values of diffusion and thermodiffusion coefficients. Finally, to investigate vibration-induced convection and, particularly, heat and mass transfer under vibrations. Three International Teams are involved in the preparation of the experiment ( Shevtsova et al., 2007). ULB (MRC) is responsible for all aspects related to IVIDIL experimental definition, theoretical and numerical modeling and coordination of the entire project. Team from Ryerson University (led by Z. Saghir), Ontario, Canada and Russian team from Perm, ICMM UB RAS (led by T. Lyubimova) provide theoretical and numerical support. As being the coordinator, the author will present a general description of the experiment and outline some results obtained by MRC, ULB researchers only, i.e. by A. Mialdun, D. Melnikov, I. Ryzhkov, Yu. Gaponenko.

Shevtsova, Valentina

2010-09-01

453

Inverse Cerenkov experiment. Final report  

Energy Technology Data Exchange (ETDEWEB)

The final report describes work performed to investigate inverse Cherenkov acceleration (ICA) as a promising method for laser particle acceleration. In particular, an improved configuration of ICA is being tested in a experiment presently underway on the Accelerator Test Facility (ATF). In the experiment, the high peak power ({approximately} 10 GW) linearly polarized ATF CO{sub 2} laser beam is converted to a radially polarized beam. This is beam is focused with an axicon at the Cherenkov angle onto the ATF 50-MeV e-beam inside a hydrogen gas cell, where the gas acts as the phase matching medium of the interaction. An energy gain of {approximately}12 MeV is predicted assuming a delivered laser peak power of 5 GW. The experiment is divided into two phases. The Phase I experiments, which were completed in the spring of 1992, were conducted before the ATF e-beam was available and involved several successful tests of the optical systems. Phase II experiments are with the e-beam and laser beam, and are still in progress. The ATF demonstrated delivery of the e-beam to the experiment in Dec. 1992. A preliminary ``debugging`` run with the e-beam and laser beam occurred in May 1993. This revealed the need for some experimental modifications, which have been implemented. The second run is tentatively scheduled for October or November 1993. In parallel to the experimental efforts has been ongoing theoretical work to support the experiment and investigate improvement and/or offshoots. One exciting offshoot has been theoretical work showing that free-space laser acceleration of electrons is possible using a radially-polarized, axicon-focused laser beam, but without any phase-matching gas. The Monte Carlo code used to model the ICA process has been upgraded and expanded to handle different types of laser beam input profiles.

Kimura, W.D.

1993-09-30

454

The ALICE Experiment Laboratory - Overview  

International Nuclear Information System (INIS)

Full text: The Laboratory is involved in research with ultrarelativistic heavy ions: the NA49 experiment at the CERN SPS and the preparation of the ALICE experiment at the CERN LHC. The aim of the NA49 experiment is to study the production of charged hadrons and charged and neutral strange particles in collisions of ultrarelativistic hadrons and nuclei with nuclear targets. Secondary particle multiplicities, single-particle spectra, two-pion correlations (boson interferometry) and the production of strangeness (?, ? and ? hyperons, ?-mesons, and both, neutral and charged, kaons), are investigated in a search for the phase transition of nuclear matter to the Quark-Gluon Plasma predicted by Lattice QCD. In fact, compelling evidence for this new state of matter was announced at CERN in February 2000, with the NA49 experiment listed among contributors to this achievement. The investigation of proton-proton and proton-nucleus collisions, initially meant merely as reference data for nucleus-nucleus collisions, evolved in recent years into a separate and very interesting field of research. ALICE (A Large Ion Collider Experiment) is a dedicated detector for heavy ion physics at the LHC whose goal is to pursue similar research at much higher energies. The LHC is expected to deliver lead ion beams colliding at the centre-of-mass energy of 5.5 A TeV. The experiment was approved by the CERN Management on February 6, 1997 and should be on the floor in the year 2006, when the LHC is expected to enter into operation. A more detailed description of our activities in both experiments can be found in three short articles below. (author)

455

Experiments  

SCPinfonet

... (Show Powerpoint Slide 21) with LDR - show effect of covering and uncovering the LDR with thermistor - show effect of warming the LDR ...Activity Discussion View apparatus list Using a circuit with LDR and a LED show that the changes in illumination causes changes in conduction properties ...

456

Experiments  

SCPinfonet

... (Show slide 1)Activity Discussion Use a spray bottle to spray water onto a cloth that changes shade of colour when it is ... Use slide 2 to reinforce that solids do not change shape when you move them.Activity Discussion The natural object is Stannage Edge ...Activity Discussion View Apparatus ListUse slide 3 to reinforce that liquids have no shape.The atoms in the liquid can move around freely. ...Activity Discussion (Show Slide 4) E.g. as water freezes it can form 2 types of solid -snow/frost and ice. ...

457

Critical experiment study on uranyl nitrate solution experiment facility  

International Nuclear Information System (INIS)

The Uranyl Nitrate Solution Experiment Facility was constructed for the research on nuclear criticality safety. In this paper, the configuration of the facility is introduced; a series of critical experiments on uranyl nitrate solution is described later, which were performed for various uranium concentrations under different conditions, i.e. with or without neutron absorbers in the core and with or without water-reflector outside the core. Critical volume and the minimum 235U critical mass for different uranium concentrations are presented. Finally, theoretical analysis is made on the experimental results. (authors)

458

Optimizing New Dark Energy Experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

Tyson, J. Anthony [University of California, Davis

2013-08-26

459

The AEGIS experiment at CERN  

Energy Technology Data Exchange (ETDEWEB)

After the first production of cold antihydrogen by the ATHENA and ATRAP experiments ten years ago, new second-generation experiments are aimed at measuring the fundamental properties of this anti-atom. The goal of AEGIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is to test the weak equivalence principle by studying the gravitational interaction between matter and antimatter with a pulsed, cold antihydrogen beam. The experiment is currently being assembled at CERN's Antiproton Decelerator. In AEGIS, antihydrogen will be produced by charge exchange of cold antiprotons with positronium excited to a high Rydberg state (n > 20). An antihydrogen beam will be produced by controlled acceleration in an electric-field gradient (Stark acceleration). The deflection of the horizontal beam due to its free fall in the gravitational field of the earth will be measured with a moire deflectometer. Initially, the gravitational acceleration will be determined to a precision of 1%, requiring the detection of about 10{sup 5} antihydrogen atoms. In this paper, after a general description, the present status of the experiment will be reviewed.

Kellerbauer, A., E-mail: a.kellerbauer@cern.ch [Max Planck Institute for Nuclear Physics (Germany); Allkofer, Y.; Amsler, C. [University of Zurich, Physics Institute (Switzerland); Belov, A. S. [Institute for Nuclear Research of the Russian Academy of Sciences (Russian Federation); Bonomi, G. [University of Brescia, Department of Mechanical and Industrial Engineering (Italy); Braeunig, P. [University of Heidelberg, Kirchhoff Institute for Physics (Germany); Bremer, J. [European Organisation for Nuclear Research, Physics Department (Switzerland); Brusa, R. S. [University of Trento, Department of Physics (Italy); Burghart, G. [European Organisation for Nuclear Research, Physics Department (Switzerland); Cabaret, L. [Centre national de la recherche scientifique, Laboratoire Aime Cotton (France); Canali, C. [University of Zurich, Physics Institute (Switzerland); Castelli, F. [University of Milano, Department of Physics (Italy); Chlouba, K. [Czech Technical University in Prague, Department of Physics (Czech Republic); Cialdi, S. [University of Milano, Department of Physics (Italy); Comparat, D. [Centre national de la recherche scientifique, Laboratoire Aime Cotton (France); Consolati, G. [Politecnico di Milano, Department of Physics (Italy); Dassa, L. [University of Brescia, Department of Mechanical and Industrial Engineering (Italy); Noto, L. Di [University of Trento, Department of Physics (Italy); Donzella, A. [University of Brescia, Department of Mechanical and Industrial Engineering (Italy); Doser, M. [European Organisation for Nuclear Research, Physics Department (Switzerland); Collaboration: AEGIS Collaboration; and others

2012-05-15

460

Conducting Miller-Urey Experiments  

Science.gov (United States)

In 1953, Stanley Miller reported the production of biomolecules from simple gaseous starting materials, using apparatus constructed to simulate the primordial Earth's atmosphere-ocean system. Miller introduced 200 ml of water, 100 mmHg of H2, 200mmHg of CH4, and 200mmHg of NH3 into the apparatus, then subjected this mixture, under reflux, to an electric discharge for a week, while the water was simultaneously heated. The purpose of this manuscript is to provide the reader with a general experimental protocol that can be used to conduct a Miller-Urey type spark discharge experiment, using a simplified 3 L reaction flask. Since the experiment involves exposing inflammable gases to a high voltage discharge, it is worth highlighting important steps that reduce the risk of explosion. The general procedures described in this work can be extrapolated to design and conduct a wide variety of electric discharge experiments simulating primitive planetary environments.

Parker, Eric Thomas; Cleaves, Henderson James; Burton, Aaron S.; Glavin, Daniel P.; Dworkin, Jason; Zhou, Manshui; Bada, Jeffrey L.; Fernandez, Facundo M.

2014-01-01

461

Neutrinoless double beta decay experiments  

Science.gov (United States)

Neutrinoles 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 raking 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.

Garfagnini, Alberto

2014-05-01

462

Neutrinoless Double Beta Decay Experiments  

CERN Document Server

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.

Garfagnini, Alberto

2014-01-01

463

Solar neutrino experiments: An update  

International Nuclear Information System (INIS)

The situation in solar neutrino physics has changed drastically in the past few years, so that now there are four neutrino experiments in operation, using different methods to look at different regions of the solar neutrino energy spectrum. These experiments are the radiochemical 37Cl Homestake detector, the realtime Kamiokande detector, and the different forms of radiochemical 71Ga detectors used in the GALLEX and SAGE projects. It is noteworthy that all of these experiments report a deficit of observed neutrinos relative to the predictions of standard solar models (although in the case of the gallium detectors, the statistical errors are still relatively large). This paper reviews the basic principles of operation of these neutrino detectors, reports their latest results and discusses some theoretical interpretations. The progress of three realtime neutrino detectors that are currently under construction, SuperKamiok, SNO and Borexino, is also discussed

464

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

465

Dusty Plasma Correlation Function Experiment  

CERN Document Server

Dust particles immersed within a plasma environment, such as those in protostellar clouds, planetary rings or cometary environments, will acquire an electric charge. If the ratio of the inter-particle potential energy to the average kinetic energy is high enough the particles will form either a "liquid" structure with short-range ordering or a crystalline structure with long range ordering. Many experiments have been conducted over the past several years on such colloidal plasmas to discover the nature of the crystals formed, but more work is needed to fully understand these complex colloidal systems. Most previous experiments have employed monodisperse spheres to form Coulomb crystals. However, in nature (as well as in most plasma processing environments) the distribution of particle sizes is more randomized and disperse. This paper reports experiments which were carried out in a GEC rf reference cell modified for use as a dusty plasma system, using varying sizes of particles to determine the manner in which...

Smith, B; Hyde, T; Matthews, L; Reay, J; Cook, M; Schmoke, J

2003-01-01

466

Experiment! planning, implementing and interpreting  

CERN Document Server

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...

Andersson, Oivind

2012-01-01

467

Apollo Telescope Mount experiments technology  

Science.gov (United States)

The Skylab Apollo Telescope Mount (ATM) experiments, consisting of a white light coronagraph, four ultraviolet instruments, two X-ray telescopes and two hydrogen-alpha telescopes, observed the sun daily for nine solar rotations. The results have only begun to be evaluated, but is is already apparent that many theories of solar physics will undergo significant revisions as results are further developed. The ATM instruments were individually larger, more complex, and provided better spatial resolution than previous solar satellite instruments. An additional major advantage of the telescope complex was its ability to simultaneously collect multispectral data for specific experiments. A description of the Skylab, the ATM and the ATM experiments will be given. The daily process of flight planning and execution will be described. Examples of scientific data and some preliminary findings will be presented.

Keathley, W. C.

1975-01-01

468

Plasma Injection Experiment at MCX  

Science.gov (United States)

MCX uses an axial magnetic field and a radial voltage to drive supersonic azimuthal flows. It has been observed that the high flow velocity and large radial velocity shear suppresses the higher order interchange modes. However, the MCX discharges are currently limited by the charge and current available from the capacitor bank supplying the radial voltage. The High Density Plasma Injection Experiment combines the MCX experiment with a modified coaxial plasma gun to drive rotation in the target vessel. A 32-injector prototype coaxial gun has been designed, constructed and installed at MCX midplane, top tangential port, as alternate means of momentum input. Unlike traditional coaxial plasma jets, the transport of the jet has been optimized via a combination of electrode shaping and tailored armature at HyperV Technologies Corp. in order to prevent the blow-by instability. Data will be presented for a wide range of MCX parameters and the prospects for future injection experiments will be evaluated.

Uzun-Kaymak, Ilker; Messer, S.

2008-11-01

469

Implanted-tritium permeation experiment  

International Nuclear Information System (INIS)

Recent theoretical investigations have pointed to considerable uncertainty in estimating the amount of tritium which will permeate the first wall of a fusion reactor and enter the primary coolant system due in part to the implantation of energetic ions. An experiment is being planned to study this problem in a small test reactor where the 3He(n,p)3T reaction is used to generate protons and tritons for implantation in and permeation of a simulated first wall. By comparing the amount of tritium moving through the wall in the presence of implantation with that in its absence while maintaining the time background partial pressure and temperature, the efflct of implantation on tritium permeation will be determined. The experiment offers an interesting and important complement to similar experiments based on plasmas or ion beams

470

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 Choppertron 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. (Author) 4 figs., 5 refs

471

The MARE experiment: micro calorimeters array for a Rhenium experiment  

International Nuclear Information System (INIS)

The experiments dedicated to effective electron-neutrino mass determination are the kinematic ones from single ?-decay. In this context an international collaboration is growing around the project of Micro calorimeters Arrays for a Rhenium Experiment (MARE) for a direct calorimetric measurements of the neutrino mass with sub-electron volt sensitivity. MARE is divided in two phases. The fist phase consists of two independent experiments using the presently available detector technology to reach a sensitivity of the order of 1 eV, and to improve the understanding of the systematic uncertainties specific of the microcalorimetric technique. The two experiments are: MARE-1 in Milan, in collaboration with NASA/GSFG and the University of Wisconsin at Madison, and MARE-1 in Genoa. The goal of the second phase (MARE-2) is to achieve a sub-electron volt sensitivity on the neutrino mass. The Milan MARE-1 arrays are based on semiconductor thermistors and dielectric Silver Perrhenate absorbers, AgReO4.

472

Status of JT-60 experiments  

International Nuclear Information System (INIS)

During the Joule heated plasma experiment in JT-60, plasmas with a unique divertor configuration was controlled and the divertor effects were confirmed. The highest plasma current and line-averaged plasma density stably obtained were 1.85 MA and 5.7 x 1019 m-3 respectively. All hardwares of supplementary heating systems of NBI (20 MW into plasma) and RF (10 MW into plasma) were installed on torus during an eight month shutdown until February 1986. The present status and plan of the high power heating experiments in JT-60 is described. (author)

473

Experiments on the ISIS synchrotron  

International Nuclear Information System (INIS)

Injection and acceleration studies on the ISIS synchrotron are described. Though HIF related experiments have not been undertaken on ISIS, aspects of machine performance relevant for HIF are discussed, such as coasting beam instabilities and bunch formation. Recently, some rapid growth of beam has been observed shortly after injection which might be due to the longitudinal microwave instability. It is planned to study this topic as a HIF related experiment in the Fall of 1986, while operating the synchrotron as a 70.4 MeV proton storage ring

474

The PADME experiment at LNF  

OpenAIRE

Massive photon-like particles are predicted in many extensions of the Standard Model. They have interactions similar to the photon, are vector bosons, and can be produced together with photons. The PADME experiment proposes a search for the dark photon ($A'$) in the $e^+e^- \\to \\gamma A'$ process in a positron-on-target experiment, exploiting the positron beam of the DA$\\Phi$NE linac at the Laboratori Nazionali di Frascati, INFN. In one year of running a sensitivity in the r...

Raggi, Mauro; Kozhuharov, Venelin; Valente, P.

2015-01-01

475

Experiments in the HAW project  

International Nuclear Information System (INIS)

This data report is the eighth of a series intended to document the data obtained from the HAW in situ experiment (at Asse) and to make these data available to potential users. During this experiment a considerable number of thermocouples was damaged so that their signals are lost. In some cases it resulted in plots with no signal but empty frames. In the previous report we tried to change our procedure and remove these frames from the report. This action was not completely successful because, as it turned out, also some of the not empty plots were removed wrongly as well. (orig.)

476

Status of the ALPS experiment  

Energy Technology Data Exchange (ETDEWEB)

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.)

Ehret, Klaus

2008-12-19

477

STATUS OF THE CUORE EXPERIMENT  

Directory of Open Access Journals (Sweden)

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.

Claudia Tomei

2013-12-01

478

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.)

479

NOM removal technologies – Norwegian experiences  

Directory of Open Access Journals (Sweden)

Full Text Available The paper gives an overview of the methods for removal of natural organic matter (NOM in water, particularly humic substances (HS, with focus on the Norwegian experiences. It is demonstrated that humic substances may be removed by a variety of methods, such as; molecular sieving through nanofiltration membranes, coagulation with subsequent floc separation (including granular media or membrane filtration, oxidation followed by biofiltration and sorption processes including chemisorption (ion exchange and physical adsorption (activated carbon. All these processes are in use in Norway and the paper gives an overview of the operational experiences.

H. Ødegaard

2010-01-01

480

NOM removal technologies – Norwegian experiences  

Directory of Open Access Journals (Sweden)

Full Text Available The paper gives an overview of the methods for removal of natural organic matter (NOM, particularly humic substances (HS, in water with focus on the Norwegian experiences. It is demonstrated that humic substances may be removed by a variety of methods, such as; molecular sieving through nanofiltration membranes, coagulation with subsequent floc separation (including granular media or membrane filtration, oxidation followed by biofiltration and sorption processes including chemisorption (ion exchange and physical adsorption (activated carbon. All these processes are in use in Norway and the paper gives an overview of the operational experiences.

H. Ødegaard

2009-10-01

481

Casimir Effect : Theory and Experiments  

CERN Document Server

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.

Lambrecht, Astrid

2011-01-01

482

Apollo experience report: Pressure vessels  

Science.gov (United States)

The Apollo spacecraft pressure vessels, associated problems and resolutions, and related experience in evaluating potential problem areas are discussed. Information is provided that can be used as a guideline in the establishment of baseline criteria for the design and use of lightweight pressure vessels. One of the first practical applications of the use of fracture-mechanics technology to protect against service failures was made on Apollo pressure vessels. Recommendations are made, based on Apollo experience, that are designed to reduce the incidence of failure in pressure-vessel operation and service.

Ecord, G. M.

1972-01-01

483

High-quality visual experience  

CERN Document Server

Last few years have seen rapid acceptance of high-definition television (HDTV) technology around the world. This technology has been hugely successful in delivering more realistic television experience at home and accurate imaging for professional applications. Adoption of high definition continues to grow as consumers demand enhanced features and greater quality of content. Following this trend, natural evolution of visualisation technologies will be in the direction of fully realistic visual experience and highly precise imaging. However, using the content of even higher resolution and quali

Mrak, Marta; Kunt, Murat

2010-01-01

484

Highlights from the OPERA experiment  

Directory of Open Access Journals (Sweden)

Full Text Available The OPERA neutrino experiment is designed to detect ?? ? ?? oscillations in direct appearance mode. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors. It is placed in the long-baseline CERN to Gran Sasso neutrino beam (CNGS 730 km away from the source. The running of the experiment and the extraction of data recorded in the emulsion will be described, together with the special procedures used to locate interaction vertices and detect short decay topologies. New oscillation search results with increased statistics will be presented. Up-to-date results of the neutrino velocity measurements will also be reported.

Mauri N.

2014-04-01

485

Positron-gas collision experiments  

International Nuclear Information System (INIS)

This paper reports on some of the highlights of positron-gas cross section measurements during the first decade of activity in this area. Interesting features observed in total cross section (Qsub(T)) experiments such as Ramsauer-Townsend effects and the onsets of positronium (Ps) formation are discussed. Positron and electron comparison Qsub(T) measurements are presented to illustrate some of the differences and similarities in the scattering of these projectiles from atoms and molecules. Recent e+ scattering investigations beyond Qsub(T) experiments are discussed including differential scattering, Ps formation, atomic excitation, and resonance searches. (Auth.)

486

First tests of CELESTE experiment  

International Nuclear Information System (INIS)

The initial test phase of the CELESTE experiment operated from October 1996 to February 1997. Two groups of three heliostats were used to reflect Cherenkov photons onto two secondary mirrors in the central tower. Fast photomultipliers in the focal plane of these secondary mirrors each 'see' only a single heliostats, allowing six-fold coincidences. We have studied coincidence rates as a function of the heliostats pointing altitude and as a function of the phototube (i.e. heliostats) threshold in photoelectrons. Pulse shape analysis and the event triggering will be a critical point and originality of the experiment

487

Near-surface heater experiments  

International Nuclear Information System (INIS)

Full-scale near-surface heater experiments are presently being conducted by Sandia Laboratories in the Conasauga Formation at Oak Ridge, Tennessee, and in the Eleana Formation on the Nevada Test Site, Nevada. The purposes of these experiments are: (1) to determine if argillaceous media can withstand thermal loads characteristic of high level waste; (2) to provide data for improvement of themomechanical modeling of argillaceous rocks; (3) to identify instrumentation development needed for further in situ testing; and (4) to identify unexpected general types of behavior, if any. The basic instrumentation of these tests consists of a heater in a central hole, surrounded by arrays of holes containing various instrumentation. Temperatures, thermal profiles, vertical displacements, volatile pressurization, and changes in in situ stresses are measured in each experiment as a function of time, and compared with pretest modeling results. Results to date, though in general agreement with modeling results assuming conductive heat transfer within the rock, indicate that the presence of even small amounts of water can drastically affect heat transfer within the heater hole itself, and that small amounts of upward convection of water may be occurring in the higher temperature areas of the Conasauga experiments

488

Spallation neutron experiment at SATURNE  

Energy Technology Data Exchange (ETDEWEB)

The double differential cross sections for (p,xn) reactions and the spectra of neutrons produced from the thick target have been measured at SATURNE in SACLAY from 1994 to 1997. The status of the experiment and the preliminary experimental results are presented. (author)

Meigo, Shin-ichiro [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

1998-11-01

489

Fusion blanket engineering benchmark experiment  

International Nuclear Information System (INIS)

The breeding blankets have rather complex configuration, accordingly it is not simple to estimate the accuracy of neutronic parameters by superposing the data obtained in individual simple benchmark experiments. Hence, experimental effort is required. The arrangement of the Phase 1 experiment of the program is now in progress, and it is described. The blanket test module is installed in a large experiment hole prepared in the wall of the FNS. The breeding material used for the present experiment is the lithium oxide of natural abundance. The example of a heterogeneous configuration blanket is shown. Neutronic quantities are measured along the central axis of the module. Main effort is exerted on the measurement of tritium production rate and neutron spectra. The neutron source and field characterization was performed first. The neutron yield, angular distribution and neutron spectra were measured for the direct component from a rotating neutron target. The source characteristics were also numerically evaluated by Monte Carlo calculation, and good agreement was obtained between the calculation and the experimental value. The results for the reference system, first wall system and berrylium neutron multiplier system are briefly reported. (Kako, I.)

490

Adverse Childhood Experiences and Hallucinations  

Science.gov (United States)

Objective:: Little information is available about the contribution of multiple adverse childhood experiences (ACEs) to the likelihood of reporting hallucinations. We used data from the ACE study to assess this relationship. Methods:: We conducted a survey about childhood abuse and household dysfunction while growing up, with questions about health…

Whitfield, C.L.; Dube, S.R.; Felitti, V.J.; Anda, R.F.

2005-01-01

491

Learning of the operative experience  

International Nuclear Information System (INIS)

Operating experience is not new, in the most of the activities that we perform in our daily lives, we can find examples of how, using the knowledge that we acquired to develop a work and to solve problems, we can get an