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1

Experiments  

...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 ...

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Experiments  

...Facts To establish that the Sun is very much further away from Earth than the Moon and both distances are very large compared to ...distances on Earth.Activity Discussion Ask them what the speed limit is on a motorway.Ask how far they would travel if they were ...speeds and to try grasp some understanding of the distances between the Earth, Moon and Sun. Explain that these are thought experiments ...Facts The Moon is a very, very long way away from the Earth compared with distances between cities.Activity Discussion Explain that if it ...

3

The Experience of Experience  

Science.gov (United States)

This article describes the process of implementing a museum experience into the course content of a literacy methods course. A museum workshop was designed to help graduate students better understand the concept of literacy as a language-based learning process that builds on and extends each child's understanding of the world. Framed by relevant…

Freidus, Helen

2007-01-01

4

Experiment Pamir  

International Nuclear Information System (INIS)

This book describes one of the most interesting experiments of cosmic rays physics. This experiment investigates the base regularities of elementary particles interaction in the field of ultrahigh energies.

5

Anesthesia Experience  

Science.gov (United States)

Anesthesia Experience Share PRINT Print Home > FAQs About Anesthesia and Surgery > Detail Page Are there different kinds of anesthesia? ... recent hospital admissions, including surgery or procedures previous experiences with anesthesia, especially any problems Some people keep ...

6

TRIO experiment  

International Nuclear Information System (INIS)

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

7

TRIO experiment  

Energy Technology Data Exchange (ETDEWEB)

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.

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

1984-09-01

8

Hydronuclear experiments  

International Nuclear Information System (INIS)

Hydronuclear experiments, a method for assessing some aspects of nuclear weapon safety, were conducted at Los Alamos during the 1958 to 1961 moratorium on nuclear testing. The experiments resulted in subcritical multiplying assemblies or a very slight degree of supercriticality and, in some cases, involved a slight, but insignificant, fission energy release. These experiments helped to identify so-called one-point safety problems associated with some of the nuclear weapons systems of that time. The need for remedial action was demonstrated, although some of the necessary design changes could not be made until after the resumption of weapons testing at the end of 1961

9

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)

10

Antimatter Experiments  

CERN Multimedia

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

2004-01-01

11

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)

12

Neutrino Experiments  

International Nuclear Information System (INIS)

Recent studies of neutrino oscillations have established the existence of finite neutrino masses and mixing between generations of neutrinos. The combined results from studies of atmospheric neutrinos, solar neutrinos, reactor antineutrinos and neutrinos produced at accelerators paint an intriguing picture that clearly requires modification of the standard model of particle physics. These results also provide clear motivation for future neutrino oscillation experiments as well as searches for direct neutrino mass and nuclear double-beta decay. I will discuss the program of new neutrino oscillation experiments aimed at completing our knowledge of the neutrino mixing matrix.

13

Weathering Experiments  

Science.gov (United States)

This experiment is designed to allow students to observe and understand chemical and physical weathering of simulated "rocks". They will place the materials in plastic bags, one wet and one dry, and store them for 3-4 days. At the end of the storage period, they will observe the contents of both bags and answer some questions about what they see.

14

Spectral Experiments+  

CERN Document Server

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

Rivin, Igor

2014-01-01

15

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

2011-06-23

16

Weathering Experiment  

Science.gov (United States)

After discussing weathering and erosion in class, students are asked to do a small amount of research on different types of chemical weathering, physical weathering, and erosion processes (mostly out of their textbook). Outside of class students then dirty at least four similar dishes with the same type, thickness and aerial extent of food, preferably baked on to ensure maximum stick. One dish is set aside as a control (no weathering or erosion will occur for that dish). For each of the remaining three dishes, students devise an experiment that mimics some sort of chemical weathering, physical weathering, or erosion process (freeze/thaw, sand abrasion, oxidation, etc.). Prior to the experiments, the thickness of food is measured. Experiments are timed, and at the end of the experiment each plate is turned over to determine how much which method removed the greatest aerial extent of food. Experimental results are compared to the control plate to determine the actual effectiveness. Erosion/weathering rates are determined by dividing the thickness of food removed by the experimental time. Students then calculate how long it would take to remove a pile of food the size of the Geology building (assume a 50 m radius sphere), and to remove an amount of food equivalent to the depth of the Grand Canyon. Students then compare these results to rock erosion and weathering rates, performing similar calculations using these "real" rates (see the full project description for details). Photos of each step and the scientists are encouraged in their 2-3 page writeup.

Stelling, Pete

17

Neutron experiments  

International Nuclear Information System (INIS)

Reports on the following different experiments are given: 1) Extension of the neutron-proton charge exchange cross section to larger angles, 2) Measurements of the reactions nd ? 3He?- and nd ? t?0 over a wide backward angular range at different incident energies and 3) Continuation of recent results on the process np ? d?0 using the 17 MHz-mode which lead to a full angular distribution and measurement very near threshold. (Auth.)

18

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

19

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)

20

Target experiments  

International Nuclear Information System (INIS)

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

 
 
 
 
21

Chemistry Experiments  

Science.gov (United States)

The purpose of the chemistry component of the model comparison is to assess to what extent differences in the formulation of chemical processes explain the variance between model results. Observed concentrations of chemical compounds are used to estimate to what degree the various models represent realistic situations. For readability, the materials for the chemistry experiment are reported in three separate sections. This section discussed the data used to evaluate the models in their simulation of the source gases and the Nitrogen compounds (NO(y)) and Chlorine compounds (Cl(y)) species.

Brasseur, Guy; Remsberg, Ellis; Purcell, Patrick; Bhatt, Praful; Sage, Karen H.; Brown, Donald E.; Scott, Courtney J.; Ko, Malcolm K. W.; Tie, Xue-Xi; Huang, Theresa

1999-01-01

22

XMASS experiment  

International Nuclear Information System (INIS)

The XMASS project utilizes ultrapure liquid xenon and aims to detect pp and 7Be solar neutrinos by means of ?+e scatterings. Our goal is a 10 t scale detector in which an ultralow background can be realized in a fiducial volume. Since it requires extremely low background, it will give great opportunities for us to search for dark matter and double beta decay signals with high sensitivity. Here we will discuss a detector design common for solar neutrino and dark matter detection and a new design devoted for the double beta decay experiment. The status of the current 100 kg xenon detector will also be shown. (author)

23

Neutrino experiments  

Science.gov (United States)

This review examines a wide variety of experiments investigating neutrino interactions and neutrino properties from a variety of neutrino sources. We have witnessed remarkable progress in the past two years in settling long standing problems in neutrino physics and uncovering the first evidence for physics beyond the Standard Model in nearly 30 years. This manuscript briefly reviews this recent progress in the field of neutrino physics and highlights several significant experimental arenas and topics for the coming decade of particular interest. These highlighted experiments include the precision determination of oscillation parameters including ?13, ?12, ?m122 and ?m232 as well as a number of fundamental properties are likely to be probed included nature of the neutrino (Majorana versus Dirac), the number of neutrino families and the neutrino's absolute mass. PACS: 14.60.Pq Neutrino mass and mixing - 26.65.+t Solar neutrinos - 95.85.Ry Neutrino, muon, pion, and other elementary particles; cosmic rays - 23.40.Bw Weak-interaction and lepton (including neutrino) aspects of beta decay - 13.15.+g Neutrino interactions - 14.60.St Non-standard-model neutrinos, right-handed neutrinos, etc. - 14.60.Lm Ordinary neutrinos (nue, numu, nutau) - 95.55.Vj Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors

Lesko, K. T.

24

Experimenting with a design experiment  

Directory of Open Access Journals (Sweden)

Full Text Available The design experiment is an experimental research method that aims to help design and further develop new (policy instruments. For the development of a set of guidelines for the facilitation of citizens’ initiatives by local governments, we are experimenting with this method. It offers good opportunities for modeling interventions by testing their instrumental validity –the usefulness for the intended practical purposes. At the same time design experiments are also useful for evaluating the empirical validity of theoretical arguments and the further development of these arguments in the light of empirical evidence (by using e.g. the technique of pattern matching. We describe how we have applied this methodology in two cases and discuss our research approach. We encountered some unexpected difficulties, especially in the cooperation with professionals and citizens. These difficulties complicate the valid attribution of causal effects to the use of the new instrument. However, our preliminary conclusion is that design experiments are useful in our field of study

El experimento de diseño es un método de investigación experimental que tiene como objetivo diseñar y desarrollar posteriormente nuevas herramientas (políticas. En este artículo experimentamos con este método para desarrollar un conjunto de directrices que permitan a los gobiernos locales facilitar las iniciativas ciudadanas. El método ofrece la oportunidad de modelar las intervenciones poniendo a prueba su validez instrumental (su utilidad para el fin práctico que se proponen. Al mismo tiempo, los experimentos de diseño son útiles también para evaluar la validez empírica de las discusiones teóricas y el posterior desarrollo de esas discusiones a la luz de la evidencia empírica (usando, por ejemplo, técnicas de concordancia de patrones. En este trabajo describimos cómo hemos aplicado este método a dos casos y discutimos nuestro enfoque de investigación. Hemos hallado diversas dificultades inesperadas, sobre todo en la colaboración de profesionales y ciudadanos. Esas dificultades hacen más complicado que se puedan atribuir de forma válida efectos causales al nuevo instrumento. Sin embargo, nuestra conclusión preliminar es que los experimentos de diseño son útiles en nuestro campo de estudio.

Bakker, Judith

2012-12-01

25

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.

26

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)

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 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.)

29

Particle physics experiments 1982  

International Nuclear Information System (INIS)

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

30

Nucleon decay experiments  

International Nuclear Information System (INIS)

The paper reviews recent experimental results on nucleon stability. The presently running experiments on nucleon decay that are considered,include: the Kolar Gold field, IMB, HPW and Kamioka experiments. The results of these experiments are discussed and compared. Future nucleon decay experiments are described. Neutron-antineutron oscillations in nuclei are also examined. (U.K.)

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

Indian summer monsoon experiments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Eight major field experiments have been carried out so far addressing the Indian summer monsoon. While these experiments were international and the impetus was external till 1980, India’s own monsoon programmes evolved since then. In this article, objectives and outcomes from some of these experiments are described. It is shown that monsoon experiments have contributed in several ways. Each experiment enhanced the infrastructure facilities in the country, brought together scientists from di...

Bhat, Gs; Narasimha, R.

2007-01-01

33

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

34

Neutrino oscillation experiments  

International Nuclear Information System (INIS)

Neutrino oscillation experiments (????e and ?????) 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

35

Particle physics experiments 1984  

International Nuclear Information System (INIS)

The Rutherford Appleton laboratory report describes work carried out in 1984 on experiments approved by the Particle Physics selection panel. The contents consist of unedited contributions from each experiment. (author)

36

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

37

Mental Rotation Experiment  

Science.gov (United States)

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

38

First Impressions Experiment  

Science.gov (United States)

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

39

Experiences with Launch Vehicles  

Science.gov (United States)

The presentation "NASA Experience with Launch Vehicles" is a compilation of Mr. Dumbacher's career experiences with the Space Shuttle Program, the Delta - Clipper Experimental flight test project, the X-33 demonstrator project, and recent experiences with the Orbital Spaceplane Program agd the current NASA effort on Exploration Launch Systems. Mr. Dumbacher will discuss his personal experiences and provide lessons learned from each program. The accounts provided by Mr. Dumbacher are his own and do not necessarily represent the official NASA position.

Dumbacher, Daniel L.

2006-01-01

40

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.

 
 
 
 
41

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)

42

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

43

Experience Communication and Aesthetics  

DEFF Research Database (Denmark)

In this article the term "experience communication" will be introduced and discussed. It will be illustrated how different concepts of aesthetical experiences are an integrated part of experience communication and how these concepts are produced within the industries of consumerism, branding and entertainment. With a point of departure in Immanuel Kant's "the sublime" (2005, orig. 1790); Edmund Burke's " the sublime" (1998, orig. 1757); " Jean Francois Lyotard's "the sublime" (1984); Mihaly Csikszentmihalyi's "flow ", (1997); Roland Barthes' "punctum" (1987) " and David Favrholdt's "the inexpressible experience"( 2000), a survey of different forms of aesthetical experiences in connection with the field of experience communication will be presented. In addition to the more established concepts of the aesthetical experience this article introduces a new term " the interference" which is  an aesthetical experience which is relevant in regards to some of the aesthetical experiences which we are met with within the industry of experience communication. The term "interference"  in the context of experience communication can be described as a kind of "intrusion," capable of creating a certain type of beauty in the form of a new aesthetic expression. An aesthetic expression which is based on "interference" denotes the space that may exist between what we know and what we don't know. With a point of departure in empirical studies it will be illustrated how these different concepts of the aesthetical experiences are produced within the field of experience communication. Aesthetical experiences may be a product of the concept of novelty, the unpredictable, the inexpressible, the making of identity, the self-actualization, the self-staging, the interactive aspect, the co-producer role (the prosumer role), the user to user aspect (web 2.0), the personal engagement or the community spirit. This increasing demand of experiences reflects the postmodern cultural trends where rules for how to think and behave no longer exist. Thisresults in individualism, where the identity of the human being has changed from something which was a given to something which each human being has to manage individually. As a consequence the human being experiences an increasing sense of insecurity and restless seeking after identity and recognition, which is reflected in an increasing demand of among other things self-actualization. The individualization of the human being can lead to loneliness and a need of participating in communities as a replacement of an overall fixed point in one's life. (Anthony Giddens, 1990, 1991; Zygmunt Bauman, 1997; Carsten René Jørgensen, 2002). The field of communication is consequently experiencing a great challenge in terms of creating experience based communication designs which meet the need of self-actualization and creation of own identities of the target audiences.  

Thorlacius, Lisbeth

44

Laser target experiments  

International Nuclear Information System (INIS)

The year 1980 witnessed several new directions for the Laser Target Experiments Program at KMSF. Among the highlights were the conclusion of wavelength scaling experiments at 0.53 ?m and 1.05 ?m, and the initiation of long-gradient-length interaction studies using the gas jet target. The latter experiments required the construction and outfitting of a new laboratory for target irradiation experiments which do not require spherically symmetric illumination. A number of brief experiments answered questions about scattered light spectra and neutron-yield scaling, while others raised new questions about second-harmonic generation and Z-dependent interactions. Integration of the KMSF program under the lead laboratory was exemplified by the participation of scientists from Livermore and NRL in the planning and execution of several experiments

45

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

46

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

47

Experiments in Electroanalytical Chemistry  

Science.gov (United States)

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

2011-05-30

48

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

49

The POLARBEAR Experiment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 ...

Kermish, Z.; Ade, P.; Anthony, A.; 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.

2012-01-01

50

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

51

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.

52

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

53

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

54

Realisation, experience, and purification  

DEFF Research Database (Denmark)

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

Sobisch, Jan-Ulrich

55

New neutrino experiments  

International Nuclear Information System (INIS)

Following incredible recent progress in understanding neutrino oscillations, many new ambitious experiments are being planned to study neutrino properties. The most important may be to find a non-zero value of ?13. The most promising way to do this appears to be to measure ?? -> ?e oscillations with an E/L near ?m2atmo. Future neutrino experiments are great. (author)

56

The Jumping Ring Experiment  

Science.gov (United States)

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

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

2009-01-01

57

Undergraduate Infrared Spectroscopy Experiments.  

Science.gov (United States)

Highlights procedures and results of an experiment using atomic absorption spectroscope to illustrate a fundamental chemical concept. The experiment demonstrates the dependence of the solubility product of lead sulfate on ionic strength in the presence of a slight excess of anion. (Author/JN)

MacCarthy, Patrick; Bowman, Susan J.

1982-01-01

58

The Franson experiment revisited  

Energy Technology Data Exchange (ETDEWEB)

Previously, the Franson experiment was challenged as a true test of local realism. In this Letter we review this situation and show that this experiment reveals a peculiar behavior when we try to, simultaneously, explain second and fourth order interferences. In order to enhance this idea, a proposed local model is discussed.

Marto, Joao [Departamento de Fisica, Universidade da Beira Interior, Rua Marques d' Avila e Bolama, 6200 Covilha (Portugal)], E-mail: jmarto@ubi.pt

2008-11-17

59

Buffon's Needle Experiment  

Science.gov (United States)

This resource consists of a Java applet and expository text. The applet simulates Buffon's needle experiment and the corresponding approximation of pi. The event of interest is that the needle crosses a crack. The length of the needle can be varied. The applet illustrates a random experiment, the sample space, random variables, probability, and relative frequency.

Siegrist, Kyle

60

Beam dump neutrino experiments  

International Nuclear Information System (INIS)

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

 
 
 
 
61

Shusterman on Somatic Experience  

Science.gov (United States)

Richard Shusterman's "Body Consciousness" aims at formulating a theory of somaesthetics and somatic experience. There has indeed been a growing interest in the role of the body in experience. Shusterman examines the arguments of six important writers who have been influential in this discussion. The emphasis on the body is natural for a…

Maattanen, Pentti

2010-01-01

62

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)

63

Wind resuspension experiments  

International Nuclear Information System (INIS)

The effects of wind speed, particle size, and atmospheric stability on wind resuspension rates are being determined in three field experiments using both six-micrometer and submicrometer tracer particles. The effect of long-term weathering is also being determined as part of these experiments

64

Social Balance Experiment  

Science.gov (United States)

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

65

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.

66

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

67

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.

2010-11-23

68

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

69

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

70

Experiment Assistance Service; Service Soutien aux Experiences  

Energy Technology Data Exchange (ETDEWEB)

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

Bensalah, F.; Bouvier, R.; Duclot, J.C.; Giroux, J.; Hadjout, J.P.; Jacquin, M.; Kirsch, R.; Lambert, M.; Madjar, N.; Maurelli, G.; Morier, S.; Pastor, C.; Reynaud, M.; Sahuc, P.; Vagneron, L.; Vanzetto, S. [Inst. de Physique Nucleaire, Lyon-1 Univ., 69 - Villeurbanne (France)

1998-12-31

71

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)

72

Industrial application experiment series  

Science.gov (United States)

Two procurements within the Industrial Application Experiment Series of the Thermal Power Systems Project are discussed. The first procurement, initiated in April 1980, resulted in an award to the Applied Concepts Corporation for the Capital Concrete Experiment: two Fresnel concentrating collectors will be evaluated in single-unit installations at the Jet Propulsion Laboratory Parabolic Dish Test Site and at Capitol Concrete Products, Topeka, Kansas. The second procurement, initiated in March 1981, is titled, "Thermal System Engineering Experiment B." The objective of the procurement is the rapid deployment of developed parabolic dish collectors.

Bluhm, S. A.

1981-05-01

73

Hope triumphs over experience  

...Hope triumphs over experience Climate & Capitalism An ecosocialist journal Home About Ecosocialist Notebook Book Reviews Archives Articles By Subject Articles by Date MRonline Monthly Review MR Press MRzine Economist’s Travelogue You are here: Home / 2012 / June / 15 / ...Hope triumphs over experience Posted on June 15, 2012 Hope triumphs over experience WWF and Greenpeace think the European Union’s failed Emissions Trading System can be repaired. That would be fixing the unfixable. After seven years, the EU ETS  has produced big profits but no ...

74

Spent fuel integral experiments  

International Nuclear Information System (INIS)

A series of parallel spent fuel integral experiments are underway at Battelle-Columbus. These experiments are operational in the Battelle hot cell facility and are designed to provide information on effects of cladding degradation on the release of radionuclides from spent fuel waste forms and on combined effects interactions between spent fuel waste forms, the waste package, and the surrounding repository environment. To accomplish these objectives, the integral experiments have been designed the emulate characteristics of repository environments for spent fuel materials in deep-mined repositories in tuff, basalt, and granite media

75

Status of RENO Experiment  

International Nuclear Information System (INIS)

The RENO (Reactor Experiment for Neutrino Oscillation) experiment is under construction to measure the smallest neutrino mixing angle ?13 using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. The experiment is planning to start data-taking in early 2011 with two identical 16-ton Gadolinium loaded liquid scintillator detectors located near and far from the center of the reactor array. The estimated systematic uncertainty associated with the measurement is less than 0.6%. Based on three years of data, the expected statistical error is about 0.3% and it would be sensitive to measure the neutrino mixing angle in the range, sin2(2?13)> 0.02. In this talk, the overview and status of RENO experiment are described.

76

Status of RENO Experiment  

International Nuclear Information System (INIS)

An experiment, RENO (Reactor Experiment for Neutrino Oscillation), is under construction to measure the smallest and unknown neutrino mixing angle (?13) using anti-neutrinos emitted from the Yonggwang nuclear power plant in Korea. The experimental setup consists of two identical 16-ton Gadolinium loaded liquid scintillator detectors located near and far from the reactor array to measure the deviations from the inverse square distance law. The experiment is planned to start data-taking in early 2011. An estimated systematic uncertainty associated with the measurement is less than 0.6%. Based on three years of data, it would be sensitive to measure the neutrino mixing angle in the range of sin2(2?13)>0.02. In this talk, the status of RENO experiment is described.

77

International Sodar Intercomparison Experiment.  

Science.gov (United States)

The paper presents preliminary results from the International Sodar Intercomparison Experiment (ISIE) conducted at the Boulder Atmospheric Observatory in September 1988. Twenty-minute mean wind speeds and directions from a variety of sodar systems compare...

J. E. Gaynor, C. B. Baker, J. C. Kaimal

1990-01-01

78

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 ...

79

Conceptualising the audiobook experience  

Directory of Open Access Journals (Sweden)

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

Iben Have

2013-03-01

80

Spina Bifida Experience  

Medline Plus

Full Text Available ... 7: Saving Lives. Protecting People.™ Search The CDC Note: Javascript is disabled or is not supported by ... Bifida Experience Your browser does not support iFrames. Source: National Center on Birth Defects and Developmental Disabilities ( ...

 
 
 
 
81

Recent experiments at LEGS  

International Nuclear Information System (INIS)

Experiments have been carried out at LEGS to measure few-body nuclear reactions with polarized photons. The results are sensitive to multi-nucleon absorption amplitudes and final-state interactions. (author)

82

Pamir emulsion chamber experiment  

International Nuclear Information System (INIS)

The emulsion chamber experiment at Pamir Heights has been made since 1981. The elevation of the Pamir Cosmic-ray Observation Station is 4370 m. The photosensitive materials were set at 8, 10 and 12 c.u. Pb. The materials were manufactured in Japan and U.S.S.R. The materials made in Japan were developed in Japan. The energy and zenith angle distribution of showers detected in the emulsions were obtained. The results were compared with the experimental results performed at Mt. Fuji. The zenith angle distribution and the attenuation mean free path of this experiment were consistent with those obtained by the other experiments. The frequency of the energy spectrum of a shower was about twice as many as others. The other purpose of the present experiment was the intercalibration of the experimental conditions in Japan and U.S.S.R. (Kato, T.)

83

German and French experiences  

International Nuclear Information System (INIS)

In this lecture author presents experience in-service inspection programme of primary circuit components at home and abroad, implementation into WWER (world methodology and equipment) as well as system qualification. Objectives European network for inspection qualification (ENIQ) are presented

84

Cosmic ray underground experiments  

International Nuclear Information System (INIS)

The field of 'Underground Physics' has recently come into its own as a branch of 'Non-Accelerator-Particle Physics. 'The Kolar Gold Field experiments can be considered as a prime impetus in this direction. Collaboration in the K.G.F. between Tata Institute of Fundamental Research and Osaka City University started in 1960, taking advantage of the ideal conditions of the mine. A series of experiments have been carried out over the past 27 years to study many topic areas related to cosmic ray muons, neutrinos, as well as grand unification theories. An outline of past experiments is presented, and emphasis is placed on the continuation of present experiments for at least another 5 years to establish observable results of proton decay, neutron oscillation, prompt muons, 'Kolar Events' and muon bundles. (author)

85

The Brain Experiment  

Science.gov (United States)

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

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

2008-09-01

86

Experimenting with Detergents  

Science.gov (United States)

Lists materials and procedures for experimenting with detergents. Included are methods for determination of the densities of dry detergents, ph values of detergent solutions, and a discussion of the ability of detergents to remove iodine stains from cloth. (CS)

Mitchell, Gail; Phillips, Donald B.

1977-01-01

87

Nova target experiments  

International Nuclear Information System (INIS)

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

88

K-meson experiments  

International Nuclear Information System (INIS)

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

89

The POLARBEAR experiment  

Science.gov (United States)

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’ 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, Zigmund D.; Ade, Peter; Anthony, Aubra; Arnold, Kam; Barron, Darcy; Boettger, David; Borrill, Julian; Chapman, Scott; Chinone, Yuji; Dobbs, Matt A.; Errard, Josquin; Fabbian, Giulio; Flanigan, Daniel; Fuller, George; Ghribi, Adnan; Grainger, Will; Halverson, Nils; Hasegawa, Masaya; Hattori, Kaori; Hazumi, Masashi; Holzapfel, William L.; Howard, Jacob; Hyland, Peter; Jaffe, Andrew; Keating, Brian; Kisner, Theodore; Lee, Adrian T.; Le Jeune, Maude; Linder, Eric; Lungu, Marius; Matsuda, Frederick; Matsumura, Tomotake; Meng, Xiaofan; Miller, Nathan J.; Morii, Hideki; Moyerman, Stephanie; Myers, Mike J.; Nishino, Haruki; Paar, Hans; Quealy, Erin; Reichardt, Christian L.; Richards, Paul L.; Ross, Colin; Shimizu, Akie; Shimon, Meir; Shimmin, Chase; Sholl, Mike; Siritanasak, Praween; Spieler, Helmuth; Stebor, Nathan; Steinbach, Bryan; Stompor, Radek; Suzuki, Aritoki; Tomaru, Takayuki; Tucker, Carole; Zahn, Oliver

2012-09-01

90

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

91

Spina Bifida Experience  

Medline Plus

Full Text Available ... is disabled or is not supported by your browser. For this reason, some items on this page ... Compartir Contact Us The Spina Bifida Experience Your browser does not support iFrames. Source: National Center on ...

92

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

93

The LHCb experiment  

CERN Document Server

The LHCb experiment is designed to fully exploit the large number of b hadrons expected at the LHC energy and luminosity. The experiment is equipped with particle identification devices and can efficiently trigger events with different B-meson final states, allowing systematic studies of CP violation and other rare phenomena in the b hadron system with a high precision which could reveal physics beyond the Standard Model.

Nakada, Tatsuya

2000-01-01

94

The CLOUD experiment  

CERN Multimedia

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

Maximilien Brice

2006-01-01

95

Illegal Entrepreneurship Experience  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Existing studies show a positive relationship between entrepreneurs' business performance and their conventional human capital as measured by previous business experience and formal education. In this paper, we explore whether illegal entrepreneurship experience (IEE), an unconventional form of human capital, is related to the performance and motivation of entrepreneurs operating legal businesses in a transition context. Using regression techniques on a sample of 399 private business owners i...

Aidis, Ruta; Praag, Mirjam

2004-01-01

96

Chemical analysis experiment method  

International Nuclear Information System (INIS)

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

97

Fundamentals of LHC Experiments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Experiments on the Large Hadron Collider at CERN represent our furthest excursion yet along the energy frontier of particle physics. The goal of probing physical processes at the TeV energy scale puts strict requirements on the performance of accelerator and experiment, dictating the awe-inspiring dimensions of both. These notes, based on a set of five lectures given at the 2010 Theoretical Advanced Studies Institute in Boulder, Colorado, not only review the physics consider...

Nielsen, Jason

2011-01-01

98

Early Teaching Experiences: Strategies  

Science.gov (United States)

PhysTEC suggests early teaching experience as both a mechanism for recruitment and to provide future teachers with a realistic view of their chosen career. Ways of providing this experience include becoming a learning assistant, exposing student teachers to a variety of grade levels, and inviting more experienced teachers to become involved with the teacher preparation program, either as mentors or as advisors in program development.

2008-05-20

99

Solar neutrino experiments  

Science.gov (United States)

The main results of solar neutrino experiments are presented, ranging from the pioneering Cl - Ar experiment up to the most recent Borexino data. Solar neutrino fluxes and spectra are given for two versions of the standard solar model, and radiochemical and electronic detectors are briefly described. The results of ^7Be- and pep-neutrino detection by Borexino are presented. The LMA-MSW oscillation solution of the solar neutrino problem is considered.

Derbin, A. V.

2014-05-01

100

The COBRA experiment  

International Nuclear Information System (INIS)

The COBRA experiment aims to use a large array of CdZnTe semiconductor detectors to search for neutrinoless double beta decay. The COBRA collaboration are currently operating a small proto-type array of crystals in a low-background environment. This paper presents the current status of the experiment, results from current and previous proto-types and future prospects for COBRA

 
 
 
 
101

Object Location Experiment  

Science.gov (United States)

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

102

Tokamak experiments - summary  

International Nuclear Information System (INIS)

One hundred and thirty papers were presented at this Conference from more than thirty tokamak machines, among which two(JET,TFTR) were operated with DT fuels and three(Tore Supra, TRIAM-1M0, HT-7)) employed superconductor toroidal coils. Extensive progress was made in tokamak performance and understanding of tokamak plasmas have been improved significantly on these experiments during last two years after 16th Fusion energy Conference. The review of new experiments on tokamak plasma physics is done

103

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

104

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.

105

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.

106

The ATHENA antihydrogen experiment  

CERN Document Server

The ATHENA experiment is being built at CERN to produce and trap neutral antihydrogen. Here we give an overview of the plans to produce antihydrogen. The experiment must (1) trap the antiprotons produced by the CERN accelerators, (2) produce and trap positrons, (3) combine the two charge species into antihydrogen, and finally (4) detect the presence of the antihydrogen. In this paper we discuss how we intend to accomplish each of these steps. (9 refs).

Fine, K S; Bollen, G; Cantone, A; Carlberg, C B; Cesar, C L; Charlton, M; Collier, M; Doser, Michael; Eades, John; Eklöw, N A; Fedele, R; Fine, K S; Fontana, A; Fritioff, T; Gemme, G; Gorini, G; Hangst, J S; Hayano, R; Hermes, E; Holzscheiter, M H; Jørgensen, L V; Kleppner, D; Lagomarsino, V; Landua, Rolf; Lewis, R A; Lodi-Rizzini, E; Macri, M; Manuzio, G; Marchesotti, M; Merrison, J P; Pruys, H S; Regenfus, C; Riedler, P; Rotondi, A; Rouleau, G; Salvini, P; Schuch, R H; Smith, G A; Testera, G; Torelli, G; Uggerhøj, Erik; Van der Werf, D P; Venturelli, L; Yamazaki, T; Yamazaki, Y; Zanello, D; Zwahlen, M

1999-01-01

107

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

108

Implosion experiments at Nova  

International Nuclear Information System (INIS)

Recent experiments at Nova focused on achieving and diagnosing high-density implosions. Primary diagnostics are based on neutron measurements and include dt and dd neutron yields through Cu, Ag, and In activation, fuel ion temperature through neutron time of flight, pusher areal density through Si activation, and fuel areal density through measurements of secondary dt neutrons from pure deuterium fuel. This last technique is of particular interest for high-density implosions since it provides direct measurement of fuel ; however, this diagnostic is complicated for values so large that the secondary tritons lose significant energy in the fuel. Techniques for making large fuel measurements with secondary dt neutrons are discussed. Experimental implosion results and interpretations are presented. In addition to the high-density experiments, high thermonuclear yield experiments are also performed and results are presented

109

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

110

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

111

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

112

HOCUS: hole closure experiments  

International Nuclear Information System (INIS)

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

113

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

114

Experiments in radiochemistry  

International Nuclear Information System (INIS)

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

115

Construction Experience Program (CONEX)  

International Nuclear Information System (INIS)

A summary of the activities of the NEA WGRNR is introduced. In particular the following tasks related to the ConEx (Construction Experience Program) are presented: Rationale and goals of the ConEx program, Development of the event construction database ConEx and its structure, ConEx procedure for program management (uses of ConEx to create knowledge, conclusions of the ConEx synthesis first report on lessons learned during construction, Potential ConEx program uses for operating experience, training, etc.)

116

Microwave PASER Experiment  

International Nuclear Information System (INIS)

The PASER (Particle Acceleration by Stimulated Emission of Radiation) concept for particle acceleration entails the direct transfer of energy from an active medium to a charged particle beam. The PASER was originally formulated for optical (laser) media; we are planning a PASER demonstration experiment based on an optically pumped X-band paramagnetic medium consisting of porphyrin or fullerene (C60) derivatives in a toluene solution or polystyrene matrix. We discuss the background of this project and report on the status of the experiment to measure the acceleration of electrons using the microwave PASER.

117

Disclosure of surgeon experience.  

Science.gov (United States)

It is uncertain whether there is an ethical obligation to disclose surgical experience. This article explores the impact of principles including respect for patient autonomy, nonmaleficence, and justice, as well as professional duties including truth-telling on the decision-making relevant to the process of informed consent, taking into account surgeon experience, training, and the expected risk and uncertainty surrounding the disease process and operation. Issues such as the integrity of the doctor-patient relationship, difficulties with access to complex surgical services, and limitations in applying statistics to the future outcomes of individual surgeons are explored. PMID:24722865

Ganai, Sabha

2014-07-01

118

The WA98 experiment  

CERN Multimedia

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

1994-01-01

119

STELLA Experiment: Hardware issues  

International Nuclear Information System (INIS)

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

120

STELLA experiment: Hardware issues  

International Nuclear Information System (INIS)

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

 
 
 
 
121

Experiment SPHERE status 2008  

Energy Technology Data Exchange (ETDEWEB)

The expedition carried out in March, 2008 to Lake Baikal became an important stage in the development of the SPHERE experiment. During the expedition the SPHERE-2 installation was hoisted, for the first time, on a tethered balloon, APA, to a height of 700 m over the lake surface covered with ice and snow. A series of test measurements were made. Preliminary results of the data processing are presented. The next plan of the SPHERE experiment is to begin a set of statistics for constructing the CR spectrum in the energy range 10{sup 16}-10{sup 18} eV.

Shaulov, S.B., E-mail: shaul@sci.lebedev.r [P.N.Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prospect 53, Moscow 119991 (Russian Federation); Besshapov, S.P.; Kabanova, N.V.; Sysoeva, T.I. [P.N.Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prospect 53, Moscow 119991 (Russian Federation); Antonov, R.A.; Anyuhina, A.M.; Bronvech, E.A.; Chernov, D.V.; Galkin, V.I. [Skobeltsyn Institute of Nuclear Physics, Lomonosov State University, Moscow 119992 (Russian Federation); Tkaczyk, W. [Department of Experimental Physics of University of Lodz (Poland); Finger, M. [Karlov University, Prague (Czech Republic); Sonsky, M. [COMPAS Consortium, Turnov (Czech Republic)

2009-12-15

122

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)

123

The VIP Experiment  

CERN Document Server

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

Bartalucci, S; Bragadireanu, M; Bucci, C; Cargnelli, M; Catitti, M; Curceanu, C; Matteo, S D; Egger, J P; Ferrari, N; Fuhrmann, H; Guaraldo, C; Iliescu, M; Ishiwatari, T; Laubenstein, M; Marton, J; Milotti, E; Pietreanu, D; Ponta, T; Sirghi, D; Sirghi, F; Sperandio, L; Widmann, E; Zmeskal, J

2005-01-01

124

Nucleon decay experiments  

International Nuclear Information System (INIS)

As can be seen three experiments have recently either been reconstructed (KOLAR II) or significantly been improved (KAMIOKANDE II, IMB III). The total useful luminosity of the five experiments adds up to ?6,5 kty1, that is ?4x1633 nucleons (proton + neutrons) have been looked at for one year. From this year on KOLAR, IMB and Kamiokande are much improved and add luminosity at better sensitivity for some of the potential nucleon decay modes and in general with better background rejection. (orig./BBOE)

125

Beam-dump experiments  

International Nuclear Information System (INIS)

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

126

Experiments with Succinct Solvers  

DEFF Research Database (Denmark)

The Succinct Solver of Nielson and Seidl is based on the Alternation-free Least Fixed Point Logic and it is implemented in SML using a combination of recursion, continuations, prefix trees and memoisation. It is known that the actual formulation of the analysis has a great impact on the execution time of the solver and the aim of this note is to provide some insight into which formulations are better than others. The experiments addresses three general issues: (i) the order of the parameters of relations, (ii) the order of conjuncts in preconditions and (iii) the use of memoisation. The experiments are performed for Control Flow Analyses for Discretionary Ambients.

Buchholtz, Mikael; Nielson, Hanne Riis

2002-01-01

127

Rod overpressure experiment (ROPE)  

International Nuclear Information System (INIS)

This project was undertaken to obtain both experimental data and experience with certain experimental techniques, which were considered necessary for the multilateral Rod Overpressure Experiment (ROPE Project). A BWR segment rod was refilled after base irradiation to give a rod internal pressure in excess of the system pressure. This rod and an identical (but not refilled) reference rod were irradiated in the R2 reactor. The overpressure rod had a clad outward creep of approximately 8 ?m after 20 days irradiation at 30 kW/m, but with an overall reduction in the pellet-clad gap. (author)

128

Divertor bias experiments  

International Nuclear Information System (INIS)

Electrical biasing of the divertor target plates has recently been implemented on several tokamaks. The results of these experiments to date will be reviewed in this paper. The bias electrode configuration is unique in each experiment. The effects of biasing on the scrape-off layer (SOL) plasma also differ. By comparing results between machines, and using theoretical models, an understanding of the basic physics of biasing begins to emerge. Divertor biasing has been demonstrated to have a strong influence on the particle and energy transport within the SOL. The ability to externally control the SOL plasma with biasing has promising applications to future tokamak reactors. ((orig.))

129

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.

2011-05-20

130

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

131

AGS experiments: 1985, 1986, 1987  

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

Depken, J.C.

1987-01-01

132

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

133

AGS experiments, 1988, 1989, 1990  

International Nuclear Information System (INIS)

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

134

Word Recognition Experiment  

Science.gov (United States)

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

135

PERICLES 2D experiment  

Energy Technology Data Exchange (ETDEWEB)

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)

Morel, Christophe

2001-07-01

136

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)

137

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

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 formula.

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

2011-07-01

139

Experiments with Retraining.  

Science.gov (United States)

When Armour and Company faced a shutdown of six plants, it joined in a cooperative program of vocational retraining with two labor unions; an Automation Fund Committee was formed, with representation from management, the unions, and "public" (college professors); and an experimental program in Oklahoma City provided experience which was applied in…

Shultz, George P.; Weber, Arnold R.

140

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

 
 
 
 
141

The Baikal-experiment  

International Nuclear Information System (INIS)

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

142

The Baikal-experiment  

Energy Technology Data Exchange (ETDEWEB)

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

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

1990-04-01

143

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

144

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

145

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

146

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

147

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

148

Carbon monoxide pollution experiment  

Science.gov (United States)

The experiment is designed to obtain data for the investigation of mechanisms by which CO is removed from the earth's atmosphere. The approach uses an orbiting platform to remotely map global CO concentrations and determine vertical CO profiles using a correlation interferometer measurement technique. The instrument is capable of measuring CO over the range of expected atmospheric burdens and of measuring trace atmospheric constituents.

Bortner, M. H.; Dick, R.; Goldstein, H. W.; Grenda, R. N.

1975-01-01

149

Long pulse diode experiments  

Science.gov (United States)

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

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

1990-10-01

150

Enhance Your Twitter Experience  

Science.gov (United States)

The author has been encouraging teachers, students, and others to join Twitter and build their personal learning networks (PLNs) ever since she delved into this great social networking site. In this article, she offers a few other tools and tips that can improve the Twitter experience of those who have opened up an account and dabbled a bit but…

Miller, Shannon McClintock

2010-01-01

151

United Kingdom's experience  

International Nuclear Information System (INIS)

This is a presentation of the United Kingdom's experience with power transmission open access. The topics of the presentation include the objectives of changing, commercial arrangements and economic drivers, long term effects, the effects of moving to a more competitive environment, and factors affecting open access such as political climate and market regulation

152

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

153

Gravitation Astrometric Measurement Experiment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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

154

An NMR Kinetics Experiment.  

Science.gov (United States)

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

Kaufman, Don; And Others

1982-01-01

155

CANDU operating experience  

Energy Technology Data Exchange (ETDEWEB)

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

McConnell, L.G.; Woodhead, L.W.; Fanjoy, G.R. (Ontario Hydro, Toronto (Canada))

1981-10-01

156

CANDU operating experience  

International Nuclear Information System (INIS)

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

157

?-hypernuclei: Experiment and theory  

International Nuclear Information System (INIS)

An experimentalist's view is given of the present status and future outlook of the field of ?-hypernuclei. Recent experimental results from the Brookhaven National Laboratory on the (?-, ?-) formation reaction and on (?-, ?- chi) coincidence experiments (chi = hypernuclear decay product) are reviewed. In addition, different current theoretical approaches are mentioned briefly. At the end, other reactions leading to the investigation of ?-hypernuclei are summarized

158

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

159

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

160

Self managing experiment resources  

Science.gov (United States)

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

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

2014-06-01

 
 
 
 
161

Music: A Shared Experience.  

Science.gov (United States)

This paper describes how sixth form girls in England provided music experiences to young children (ages 3-9) with severe learning difficulties. The weekly sessions involve individual sessions and use of various instruments. The relationship of the music therapy program to the National Curriculum is noted. (DB)

Dunn, Rosemary

1992-01-01

162

Experiences of cognitive coaching  

Directory of Open Access Journals (Sweden)

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

Kristina Gyllensten

2011-12-01

163

The OLYMPUS experiment  

Science.gov (United States)

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

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

2014-03-01

164

The KOSI experiments  

International Nuclear Information System (INIS)

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

165

Recommending search experiences  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we focus on a multi-case case-based reasoning system to support users during collaborative search tasks. In particular we describe how repositories of search experiences/knowledge can be recommended to users at search time. These recommendations are evaluated using real-world search data.

Saaya, Zurina; Smyth, Barry; Coyle, Maurice; Briggs, Peter

2011-01-01

166

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

167

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

168

Lidar calibration experiments  

DEFF Research Database (Denmark)

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

Ejsing JØrgensen, Hans; Mikkelsen, T.

1997-01-01

169

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

170

The OLYMPUS experiment  

International Nuclear Information System (INIS)

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

171

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

172

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.)

173

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

174

Experimenting with Woodwind Instruments  

Science.gov (United States)

Simple experiments involving musical instruments of the woodwind family can be used to demonstrate the basic physics of vibrating air columns in resonance tubes using nothing more than straightforward measurements and data collection hardware and software. More involved experimentation with the same equipment can provide insight into the effects…

LoPresto, Michael C.

2007-01-01

175

A Degrading Experience  

Science.gov (United States)

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

Sheavly, Seba; Reigster, Katie

2014-05-28

176

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

177

Whole plant layup experience  

Energy Technology Data Exchange (ETDEWEB)

The paper presents an experience report on the long-term dry layup of an entire coal-fired power plant. The planning phase is described, including the issues that needed to be addressed and the advantages and disadvantages of the procedures that were considered. The layup process is described and data on the results of the drying procedure are presented. (orig.)

Barnes, Steven L. [Northern Indiana Public Service Company, Valparaiso, IN (United States). Chemical and Environmental Compliance

2011-07-15

178

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

179

The ATRAP experiment  

CERN Multimedia

Gerald Gabrielse, spokesperson, pictured in front of the Antihydrogen Trap (ATRAP) experiment, the first machine to accumulate cold antiprotons produced in the AD, and combine them with protons (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

180

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)

 
 
 
 
181

The Dragon reactor experiment  

International Nuclear Information System (INIS)

The concept on which the Dragon Reactor Experiment was based was evolved at the Atomic Energy Research Establishment at Harwell in 1956, and in February of that year a High Temperature Gas- cooled Reactor Project Group was set up to study the feasibility of a helium-cooled reactor with a graphite or beryllium moderator, and with the emphasis on the thorium fuel cycle

182

Seeking surgical experience abroad.  

Science.gov (United States)

While looking for an EMS placement that would offer some surgical experience, Lillian Cousto, a final-year student at the Royal Veterinary College, stumbled on the opportunity to be involved in a spay and neuter externship offered by Mississippi State University College of Veterinary Medicine in the USA. PMID:25413825

Cousto, Lillian

2014-11-22

183

Implicit Association Experiment  

Science.gov (United States)

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

184

Cyclic Voltammetry Experiment.  

Science.gov (United States)

Describes a three-part experiment designed to introduce cyclic voltammetry to graduate/undergraduate students. Part 1 demonstrates formal reduction potential, redox electron transfer, diffusion coefficient, and electrochemical reversibility. Part 2 investigates electrochemical behavior of acetaminophen. Part 3 examines such experimental variables…

Van Benschoten, James J.; And Others

1983-01-01

185

The MAJORANA Experiment  

International Nuclear Information System (INIS)

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

186

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 {sup 76}Ge. 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, C.E.; Aguayo, E. [Pacific Northwest National Laboratory, Richland, WA, USA, (United States); Amman, M. [Lawrence Berkeley National Laboratory, Berkeley, CA (United States); Avignone, F.T. [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); Bai, X. [South Dakota School of Mines and Technology, Rapid City, SD (United States); Barabash, A.S. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Barbeau, P.S. [Department of Physics, University of Chicago, Chicago, IL (United States); Bergevin, M. [Lawrence Berkeley National Laboratory, Berkeley, CA (United States); Bertrand, F.E. [Oak Ridge National Laboratory, Oak Ridge, TN (United States); Boswell, M. [Los Alamos National Laboratory, Los Alamos, NM (United States); Brudanin, V. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Bugg, W. [Department of Physics and Astronomy, University of Tennessee, Knoxville, TN (United States); Burritt, T.H. [Center for Experimental Nuclear Physics and Astrophysics, and Dept. of Physics, University of Washington, Seattle, WA (United States); Busch, M. [Department of Physics, Duke University, Durham, NC (United States); Triangle Universities Nuclear Laboratory, Durham, NC (United States); Capps, G. [Oak Ridge National Laboratory, Oak Ridge, TN (United States); Chan, Y.-D. [Lawrence Berkeley National Laboratory, Berkeley, CA (United States); Collar, J.I. [Department of Physics, University of Chicago, Chicago, IL (United States); Cooper, R.J. [Oak Ridge National Laboratory, Oak Ridge, TN (United States); Creswick, R. [Department of Physics and Astronomy, University of South Carolina, Columbia, SC (United States)

2011-08-15

187

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 {sup 76}Ge. 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.

Guiseppe, V.E. [Univ S Dakota; Keller, C. [Univ S Dakota; Mei, D-M [Univ S Dakota; Perevozchikov, O. [Univ S Dakota; Perumpilly, G. [Univ S Dakota; Thomas, K. [Univ S Dakota; Xiang, W. [Univ S Dakota; Zhang, C. [Univ S Dakota; Aalseth, C.E. [Pacific NW Natl Lab Richland, WA; Aguayo, E. [Pacific NW Natl Lab Richland, WA; Ely, J. [Pacific NW Natl Lab Richland, WA; Fast, J.E. [Pacific NW Natl Lab Richland, WA; Hoppe, E.W. [Pacific NW Natl Lab Richland, WA; Hossbach, T.W. [Pacific NW Natl Lab Richland, WA; Keillor, M. [Pacific NW Natl Lab Richland, WA; Kephart, J.D. [Pacific NW Natl Lab Richland, WA; Kouzes, R. [Pacific NW Natl Lab Richland, WA; Miley, H.S. [Pacific NW Natl Lab Richland, WA; Mizouni, L. [Pacific NW Natl Lab Richland, WA; Myers, A.W. [Pacific NW Natl Lab Richland, WA; Reid, D. [Pacific NW Natl Lab Richland, WA; Amman, M. [Lawrence Berkeley National Laboratory (LBNL); Bergevin, M. [Lawrence Berkeley National Laboratory (LBNL); Chan, Y-D [Lawrence Berkeley National Laboratory (LBNL); Detwiler, J.A. [Lawrence Berkeley National Laboratory (LBNL); Loach, J.C. [Lawrence Berkeley National Laboratory (LBNL); Luke, P.N. [Lawrence Berkeley National Laboratory (LBNL); Martin, R.D. [Lawrence Berkeley National Laboratory (LBNL); Poon, A.W.P. [Lawrence Berkeley National Laboratory (LBNL); Prior, G. [Lawrence Berkeley National Laboratory (LBNL); Vetter, K. [Lawrence Berkeley National Laboratory (LBNL); Yaver, H. [Lawrence Berkeley National Laboratory (LBNL); Avignone, F.T. III [University of South Carolina; Creswick, R. [University of South Carolina; Farach, H. [University of South Carolina; Mizouni, L. [University of South Carolina; Avignone, Frank Titus [ORNL; Bertrand Jr, Fred E [ORNL; Capps, Gregory L [ORNL; Cooper, Reynold J [ORNL; Radford, David C [ORNL; Varner Jr, Robert L [ORNL; Wilkerson, John F [University of North Carolina, Chapel Hill; Yu, Chang-Hong [ORNL; Back, H.O. [University of North Carolina; Leviner, L. [North Carolina State University; Young, A.R. [North Carolina State University; Back (et al.), H.O. [Triangle Universities Nuclear Laboratory, Durham, NC; Bai, X. [South Dakota School of Mines and Technology; Hong, H. [South Dakota School of Mines and Technology; Howard, S. [South Dakota School of Mines and Technology; Medlin, D. [South Dakota School of Mines and Technology; Sobolev, V. [South Dakota School of Mines and Technology; Barabash, A.S. [Inst Theort & Expt Phys, Moscow, Russia; Konovalov, S.I. [Inst Theort & Expt Phys, Moscow, Russia; Vanyushin, I. [Inst Theort & Expt Phys, Moscow, Russia; Yumatov, V. [Inst Theort & Expt Phys, Moscow, Russia; Barbeau, P.S. [University of Chicago; Collar, J.I. [University of Chicago; Fields, N. [University of Chicago; Boswell (et al.), M. [Los Alamos National Laboratory (LANL); Brudanin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Egorov, V. [Joint Institute for Nuclear Research, Dubna, Russia; Gusey, K. [Joint Institute for Nuclear Research, Dubna, Russia; Kochetov, O. [Joint Institute for Nuclear Research, Dubna, Russia; Shirchenko, M. [Joint Institute for Nuclear Research, Dubna, Russia; Timkin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Yakushev, E. [Joint Institute for Nuclear Research, Dubna, Russia; Bugg, W. [University of Tennessee, Knoxville (UTK); Efremenko, M. [University of Tennessee, Knoxville (UTK); Burritt (et al.), T.H. [University of Washington, Ctr Expt Nucle Phys & Astrophys; Burritt (et al.), T.H. [University of Washington, Dept Phys, Seattle, WA; Busch, M. [Duke University; Esterline, J. [Duke University; Swift, G. [Duke University; Tornow, W. [Duke University/TUNL; Ejiri, H. [Osaka University; Hazama, R. [Osaka University; Nomachi, M. [Osaka University; Shima, T. [Osaka University; Finnerty (et al.), P. [University of North Carolina; et al.

2011-01-01

188

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

189

The CHORUS experiment  

International Nuclear Information System (INIS)

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

190

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

191

HCDA bubble experiment, (2)  

International Nuclear Information System (INIS)

An experiment simulating the behavior of the very large steam bubbles generated at the time of an accident of core collapse was carried out with a warm water tank, and the applicability of the theory of very small bubble disappearance known at present was examined. The bubbles generated in HCDA (hypothetical core disruptive accident) are expected to be very large, containing sodium, fuel, FP gas and so on, and play important role in the mechanism of emitting radioactive substances in the safety analysis of LMFBRs. In this experiment, the degree of subcool of the warm water pool, the initial radii of steam bubbles and the blowoff pressure of steam were taken as the parameters. The radius of the steam bubbles generated in the experiment was about 6.5 cm, and the state of disappearance was different above and below the degree of unsaturation of 10 deg C. Comparing the disappearance curve obtained by the experiment with the theory of disappearance of small bubbles, the experimental values were between inertia-controlled disappearance and heat transfer-controlled disappearance, and this result was able to be explained generally with the model taking the pressure change within steam bubbles into account. The rise of bubbles was also observed. (Kako, I.)

192

Winfrith SGHWR operations experience  

International Nuclear Information System (INIS)

The Winfrith Steam Generating Heavy Water Reactor which is owned and operated by the United Kingdom Atomic Energy Authority has a nominal gross electrical output of 100 MW(e) and has been in operation since 1968. The paper contains a review of plant topics of general interest covering the 18 year period of operation, extending information previously published. Overall the operating experience with the plant has been very favourable and the plant reliability has been good. Naturally some of the experience of general interest centres around difficulties that have arisen on plant and this is reflected in the content of the paper. Recent experience with the main coolant circuits and pressure tubes is summarised. There have been no general problems from stress corrosion or other forms of attack on the main coolant circuit pipework or welds and the 321 Type stainless steel has generally proved to be satisfactory under the imposed conditions which are typical of BWR chemistry. The Zircaloy pressure tubes have all been satisfactorily inspected in service and one pressure tube was replaced in 1985 for materials tests on the irradiated tube. Some preliminary test data is included in the paper and it is expected that the latest information will be reported at the meeting. The fuel element reliability has continued to be very good with only one standard fuel element experiencing clad defects in the operating period since 1976. Regular chemical decontaminations of the reactor coolmical decontaminations of the reactor coolant circuits continue, having been initiated in 1969, as part of a programme to reduce radiation dose to personnel. New reagents, recently introduced, have been successful in continuing a downward trend in dose rates. Experience with the saturated steam turbine plant is also summarised. Operation of the reactor continues to demonstrate the potential of the pressure tube reactor and to produce information and experience of relevance to water reactors in general. (author)

193

The Mobilisatsia experience  

International Nuclear Information System (INIS)

The hazards of long-duration manned space flight are real. In order to participate effectively in long duration orbital missions or to continue the exploration of space, the health of the astronaut must be secured. There is mounting evidence that changes in the immune response of an astronaut in short-term flights, resemble those occurring after acute stress, while the changes during long-term flights resemble those caused by chronic stress. This blunting of the immune system occurs concomitant with a relative increase in microbial contamination in the space cabin environment. Such a combination of events results in an increased probability of in-flight infectious events. Micro-organisms are subject to a genetic evolution, which may lead to the capacity to colonize new environments and to cause infections. Central players in this evolutionary process are mobile genetic elements. They help to mobilize and reorganize genes, be it within a given genome (intragenomic mobility) or between bacterial cells (intercellular mobility). Hence, the processes of genetic exchange can mobilize genetic elements between bacterial strains, and therefore play a role in determining the infectious potential. The specific confined environment and space-flight related factors (such as microgravity and cosmic radiation) may increase the frequency in which mobile genetic elements are exchanged between micro organisms. The aim of the Mobilisatsia experiment was to promote microbial gene transfer under space flight conditions during a short-term experiment conducted aboard the International Space Station (ISS). The efficiency of the gene exchange process was compared with a synchronously performed ground control experiment. An experiment was carried out with well-characterized Gram-negative reference strains and one experiment was done with Gram-positive reference strains

194

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

195

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

196

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

197

Gross decontamination experiment report  

Energy Technology Data Exchange (ETDEWEB)

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

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

1983-07-01

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.

Nolin, Jeanette

2009-01-01

199

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

200

Antimatter gravity experiment  

International Nuclear Information System (INIS)

An experiment is being developed to measure the acceleration of the antiproton in the gravitational field of the earth. Antiprotons of a few MeV from the LEAR facility at CERN will be slowed, captured, cooled to a temperature of about 10 K, and subsequently launched a few at a time into a drift tube where the effect of gravity on their motion will be determined by a time-of-flight method. Development of the experiment is proceeding at Los Alamos using normal matter. The fabrication of a drift tube that will produce a region of space in which gravity is the dominant force on moving ions is of major difficulty. This involves a study of methods of minimizing the electric fields produced by spatially varying work functions on conducting surfaces. Progress in a number of areas is described, with stress on the drift-tube development

 
 
 
 
201

Antimatter gravity experiment  

International Nuclear Information System (INIS)

An experiment is being developed to measure the acceleration of the antiproton in the gravitational field of the earth. Antiprotons of a few MeV from the LEAR facility at CERN will be decelerated, captured, cooled to a temperature of about 10 K, and subsequently launched a few at a time into a drift tube where the effect of gravity on their motion will be determined by a time-of-flight method. Development of the experiment is proceeding at Los Alamos using normal matter. The fabrication of a drift tube that will produce a region of space in which gravity is the dominant force on moving ions is of major difficulty. This involves a study of methods of minimizing the electrics fields produced by spatially varying work functions on conducting surfaces. Progress in a number of areas is described, with emphasis on the drift-tube development. (orig.)

202

Improving the patient's experience  

Directory of Open Access Journals (Sweden)

Full Text Available When arriving at the eye care unit, patients often feel unsure of what is going to happen, anxious, and vulnerable. Many have never found themselves in a hospital setting before or have never travelled or slept away from home.It is an integral part of eye care to make sure a patient's experience is a positive one. This article offers suggestions for good, evidence-based, practice to improve this experience.Our suggestions should necessarily be adapted to local context: resource-poor settings are particularly challenging work environments and staff may need to display more ingenuity in working towards good practice, when striving to achieve the goals of VISION 2020.

C Patricia Fathers

2008-12-01

203

Lightcraft experiments in Germany  

Science.gov (United States)

Vertical flight and pendulum experiments have been carried out with a simple paraboloid type lightcraft in the air-breathing mode. Pulsed laser energy of up to 240 J/pulse was delivered from a highly reproducible e-beam sustained CO2-laser at repetition rates up to 45 Hz. The lightcraft mass was varied in the range between 22 and 55 g. An average thrust of 1.1 N has been derived from the flight data and the highest impulse coupling coefficient found in the pendulum experiments was 33.3(DOT)10-5 Ns/J. A double shock wave was detected that leaves the thruster exit and an attempt was made to model the thrust, using a modification of Sedov's similarity solution for a blast wave. Finally, the propulsion requirements for the launch of a 10 kg mass into low Earth orbit are presented.

Schall, Wolfgang O.; Bohn, Willy L.; Eckel, Hans-Albert; Mayerhofer, Wilhelm; Riede, Wolfgang; Zeyfang, Eberhard

2000-08-01

204

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

205

Experiment at Vinca  

International Nuclear Information System (INIS)

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

206

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

207

PPT experiments in JINR  

International Nuclear Information System (INIS)

A review is given of experiments with the polarized proton target in the Laboratory Nuclear Problems at JINR Dubna. The experiments were carried out using the accelerators in Dubna, Gatchina and Serpukhov in 1970-1985. The mathematical formalism of NN and ?N scattering is explained. Described are the measurements of CNN in pp elastic scattering at 590-950 MeV, depolarization in pp and np elastic scattering at 600-650 MeV, polarization and R parameter in ?p, Kp, pp and anti-p p elastic scattering at 40 GeV/c and polarization in the charge exchange scattering at 40 GeV/c. (Z.J.)

208

Cross-Language Experiment  

Directory of Open Access Journals (Sweden)

Full Text Available The contribution addresses the cross-language experiment. The aimwas to test the possibility of the conversion French phoneme modelsinto Czech ones. This model conversion uses the Hidden Markov Models(HMM classification procedure. The first step consists of theiterative mapping of French models to Czech ones. The mapping is givenby the analysis the confusion matrix. The second step is the Baum-Welchre-estimation resulting in the final models for Czech language. Despiteof the differences between French and Czech languages the finalrecognition score reaches 64% for the phoneme recognition and 74% fordigit recognition. Relatively low recognition accuracy is caused by theinadequate noise model. The experiences gained with the cross-languageexperiment were utilized for the classification of simple human bodymovements. The solution of this problem and results are described inthe second part of this contribution under the title EEG SignalsClassification-Introduction to the Problem.

P. Sovka

2003-09-01

209

Shooting Star Experiment  

Science.gov (United States)

The Shooting Star Experiment (SSE) is designed to develop and demonstrate the technology required to focus the sun's energy and use the energy for inexpensive space Propulsion Research. Pictured is an engineering model (Pathfinder III) of the Shooting Star Experiment (SSE). This model was used to test and characterize the motion and deformation of the structure caused by thermal effects. In this photograph, alignment targets are being placed on the engineering model so that a theodolite (alignment telescope) could be used to accurately measure the deformation and deflections of the engineering model under extreme conditions, such as the coldness of deep space and the hotness of the sun as well as vacuum. This thermal vacuum test was performed at the X-Ray Calibration Facility because of the size of the test article and the capabilities of the facility to simulate in-orbit conditions

1997-01-01

210

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

211

The gravitational wave experiment  

Science.gov (United States)

Since the optimum size of a gravitational wave detector is the wave length, interplanetary dimensions are needed for the mHz band of interest. Doppler tracking of Ulysses will provide the most sensitive attempt to date at the detection of gravitational waves in the low frequency band. The driving noise source is the fluctuations in the refractive index of interplanetary plasma. This dictates the timing of the experiment to be near solar opposition and sets the target accuracy for the fractional frequency change at 3.0 x 10 exp -14 for integration times of the order of 1000 sec. The instrumentation utilized by the experiment is distributed between the radio systems on the spacecraft and the seven participating ground stations of the Deep Space Network and Medicina. Preliminary analysis is available of the measurements taken during the Ulysses first opposition test.

Bertotti, B.; Ambrosini, R.; Asmar, S. W.; Brenkle, J. P.; Comoretto, G.; Giampieri, G.; Less, L.; Messeri, A.; Wahlquist, H. D.

1992-01-01

212

Electronics for Satellite Experiments  

Energy Technology Data Exchange (ETDEWEB)

The tracking detector for the LAT science instrument on the GLAST mission is an example of a large-scale particle detection system built primarily by particle physicists for space flight within the context of a NASA program. The design and fabrication model in most ways reflected practice and experience from particle physics, but the quality assurance aspects were guided by NASA. Similarly, most of the electronics in the LAT as a whole were designed and built by staff at a particle physics lab. This paper reports on many of the challenges and lessons learned in the experience of designing and building the tracking detector and general LAT electronics for use in the NASA GLAST mission.

Johnson, Robert P.; /UC, Santa Cruz

2006-05-16

213

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

214

HTR fuel manufacturing experience  

International Nuclear Information System (INIS)

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

215

New Experiments with Antiprotons  

Science.gov (United States)

Fermilab operates the world's most intense antiproton source. Recently proposed experiments can use those antiprotons either parasitically during Teva-tron Collider running or after the Tevatron Collider finishes in about 2011. For example, the annihilation of 8 GeV antiprotons might make the world's most intense source of tagged D0 mesons, and thus the best near-term opportunity to study charm mixing and search for new physics via its CP-violation signature. Other possible precision measurements include properties of the X(3872) and the charmonium system. An experiment using a Penning trap and an atom interferometer could make the world's first measurement of the gravitational force on antimatter. These and other potential measurements using antiprotons could yield a broad physics program at Fermilab in the post-Tevatron era.

Kaplan, D. M.

2011-12-01

216

Experiments in space: Summary  

Science.gov (United States)

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

Morselli, Aldo

2014-04-01

217

Experiences in Coordination Programming  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The term coordination is now unavoidable when speaking about software systems composed of many computing entities. More and more coordination models and languages are available, but they are used mainly in toy examples. This paper relates concrete experiences in the field of coordination programming, starting with formal object-oriented specifications and ending with Java programs. It shows that suitable coordination model and language are actually fruitful whn used since the design phase of ...

Buffo, Mathieu

1998-01-01

218

"We work on experiments"  

CERN Multimedia

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

BBC

1975-01-01

219

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

220

CANDU operating experience  

International Nuclear Information System (INIS)

The CANDU (CANada Deuterium Uranium) Pressurized Heavy Water (PHW) type of nuclear-electric generating station was developed jointly by Atomic Energy of Canada Limited and Ontario Hydro. This paper summarizes 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 to both the workers and the public

 
 
 
 
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

Pilot experience yellow tariff  

International Nuclear Information System (INIS)

In the search for alternatives to reduce the probability of a electric energy shortage, the National Electric Sector decided to apply Real Cost Supply Tariff. The implementation of this tariff method to consumers supplied on low tension, Group B (lower than 2300 Volts), demands a better knowledge of measurement equipment, tariff values and consumers receptivity for energy modulation and/or conservation, all objects of this Yellow Tariff Experience. (author)

223

NPB Cesium Space Experiment  

Science.gov (United States)

Neutral Particle Beam (NPB) weapons systems are planned to perform the ballistic missile defense functions of nuclear weapon/decoy discrimination and warhead kill at appropriate energy levels and ion currents. Negatively charged ions are produced in a specialized ion source and focused into a high quality particle beam. NPB linear accelerators accelerate and steer the negatively charged ions using electric and magnetic fields. After acceleration and steering the neutralizer system strips away extra electrons from ions to form the electrically neutral particle beam. The neutral beam then travels through space to the target unaffected by the Earth's magnetic fields. Continuing technological advances have greatly reduced the size and weight of NPB accelerator systems. Ion current production has been enhanced by over 100 percent with the intermittent addition of cesium at the NPB ion source device. This increase in current is essential to attain the most light weight, compact NPB platforms and minimize expensive launch costs. Addition of cesium into the ion source has been identified by the NPB community as the highest priority risk reduction space experiment necessary prior to planned NPB accelerator experiments and later weapons systems. The NPB Cesium Space Experiment is planned to successfully demonstrate controlled cesium introduction and vaporization into a simulated ion source chamber. Microgravity effects on the cesium deposition will be studied as will the effects of small amounts of cesium on high voltage accelerator components that might be susceptible to electrical insulator break downs. The experiment design will simulate as closely as possible the environment, physical and operational characteristics of the actual NPB ion source.

Parsons, George M., III

1992-01-01

224

Experience and Entrepreneurship  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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

225

The NEXT experiment  

Energy Technology Data Exchange (ETDEWEB)

Neutrinoless double beta decay measurements are the most promising experiments both to reveal the Majorana nature of the neutrino and to set a value for its mass. The NEXT project propose to build a High pressure Xenon TPC in the Canfranc Underground Laboratory (Huesca, Spain) to measure double-beta decay of {sup 136}Xe, both normal and neutrinoless, with a source mass of 100 kg of enriched xenon.

DIaz, J; Yahlali, N; Ball, M; Carcel, S; Cervera, A; Gil, A [Instituto de Fisica Corpuscular (Centro mixto UV-CSIC), Apdo. de Correos 22085, E-46071 Valencia (Spain) (Spain); Barata, J A S; Borges, F I G M; Conde, C A N; Dias, T H V T; Fernandes, L M P; Freitas, E D C [Universidade de Coimbra (Portugal); Calvo, E [Instituto de Fisica de Altas EnergIas, IFAE, Barcelona (Spain); Carmona, J M; Cebrian, S; Dafni, T; Galan, J [U. Zaragoza (Spain); Cid, X [Universidade de Santiago de Compostela (Spain); Ferrer-Ribas, E [CEA, IRFU, Saclay (France); Gil, I, E-mail: jose.diaz@uv.e [CIEMAT (Spain)

2009-07-01

226

STELLA Experiment - Microbunch Diagnostic  

Energy Technology Data Exchange (ETDEWEB)

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

He, P.; Liu, Y.; Cline, D. B.; Babzien, M.; Gallardo, J. C.; Kusche, K. P.; Pogorelsky, I. V.; Skaritka, J.; van Steenbergen, A.; Yakimenko, V.; Kimura, W. D.

1998-07-01

227

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

228

The CODALEMA experiment  

Energy Technology Data Exchange (ETDEWEB)

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

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

2012-01-11

229

The CODALEMA experiment  

International Nuclear Information System (INIS)

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

230

Gravitation and Experiment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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

231

Experiments with radioactive source  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this diploma thesis the most interesting and instructive experiments have been collected using radioactive sources, which intended for lecturing students and teachers. The diploma thesis begins with topics about radioactive nuclei (structure of nucleus, types of decays, how radioactivity is measured, radiation dose and its effects on human body). The experimental part presents the measurements and calculated absorption coefficients for the isotope Strontium 90. In the first part I examine ...

Turk, Marus?a

2012-01-01

232

STELLA Experiment - Microbunch Diagnostic  

International Nuclear Information System (INIS)

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

233

Red and Black Experiment  

Science.gov (United States)

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

Siegrist, Kyle

234

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)

235

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

236

Multiphase-flowmeter experience  

Energy Technology Data Exchange (ETDEWEB)

Multiphase-flowmeters (MPFM`s) are finding increasing acceptance offshore, where operators are becoming more comfortable with the technology after several years of familiarization. Meters are being used in well testing, well management, and allocation of production. Since the first deliveries of the Framo engineering A/S meter in 1993, significant experience has been gained in both topside and subsea applications of the devices. The paper describes purposes, technology, Framo`s meter, applications, performance verification, and operational problems.

NONE

1998-04-01

237

Mirror Drawing Experiment  

Science.gov (United States)

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

Mccarthy, Maureen

2006-01-18

238

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

239

The Vinca dosimetry experiment  

International Nuclear Information System (INIS)

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

240

Summary on experiments  

International Nuclear Information System (INIS)

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

 
 
 
 
241

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.

242

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

243

The MUNU experiment  

International Nuclear Information System (INIS)

We intend to build a low background detector based on a gas TPC to be installed near a nuclear reactor in Bugey for the experimental study of anti?ee- scattering. The threshold on the electron recoil energy can be set very low, around 500 keV, giving the experiment a good sensitivity to the magnetic moment of the anti?e, extending down to 2-3.10-11 Bohr magnetons. (authors). 14 refs

244

Hyperon Beam Experiment  

CERN Multimedia

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

2002-01-01

245

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

246

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

247

The OLYMPUS Experiment  

CERN Document Server

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

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

2014-01-01

248

Tango for experiment control  

International Nuclear Information System (INIS)

The Tango control system framework allows you to control an accelerator complex as well as single equipment. The framework contains the communication bus with the standard communication modes (synchronous, asynchronous, event driven) as well as the basic hardware access modules, GUI tools and development kits, bindings to commercial products (LabView, Matlab, IgorPro) and services (administration, archiving, access control) to set up a control system. Tango was mainly developed by several synchrotron light sources that have to support not only the accelerator complex but also a lot of experimental end stations. For synchrotron experiments we have to control the whole process from basic hardware access over data taking to data analysis. This paper describes in the first part the special features of Tango allowing flexible experiment control. The dynamic configuration, the rapid hardware interface development and the sequencing and scanning framework are some examples. The second part gives an overview of some packages developed in the Tango community for experiment control: A HKL library for diffraction computation and diffractometer control, a library to control 2D detectors and a data analysis workbench with workflow engine for on-line and off-line data analysis. These packages are not part of Tango and can be used with other control systems. (author)

249

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)

250

Laboratory reconnection experiments  

Science.gov (United States)

Laboratory experiments dedicated for the study of magnetic reconnection have been contributed considerably to a more detailed understanding of the involved processes. Their strength is to disentangle parameter dependencies, to diagnose in detail the plasma and field response, and to form an excellent testbed for the validation of numerical simulations. In the present paper recent results obtained from the new cylindrical reconnection experiment VINETA II are presented. The experimental setup allows to independently vary plasma parameters, reconnection drive strength/timescale, and current sheet amplitude. Current research objectives focus on two major scientific issues: Guide field effects on magnetic reconnection and the evolution of electromagnetic fluctuations. The superimposed homogeneous magnetic guide field has a strong influence on the spatiotemporal evolution of the current sheet, predominantly due to magnetic pitch angle effects, which leads to a strong elongation of the sheet along the separatrices and results in axial gradients of the reconnection rates. Within the current sheet, incoherent electromagnetic fluctuations are observed. Their magnetic signature is characterized by a broad spectrum somewhat centered around the lower-hybrid frequency and extremely short spatial correlation lengths being typically smaller than the local ion sound radius. The fluctuation amplitude correlates with the local current density and, thus, for low guide fields, displays also axial gradients. Despite the quantitatively different parameter regime and geometry the basic fluctuation properties are in good agreement with studies conducted at the MRX experiment (PPPL).

Grulke, Olaf

251

AGS experiments - 1982, 1983, 1984  

International Nuclear Information System (INIS)

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

252

AGS Experiments: 1989, 1990, 1991  

International Nuclear Information System (INIS)

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

253

Aesthetic experience of dance performances  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 da...

Vukadinovi? Maja; Markovi? Slobodan

2012-01-01

254

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

255

Simulation - modeling - experiment  

International Nuclear Information System (INIS)

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

256

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

257

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

258

Non-tokamak experiments  

International Nuclear Information System (INIS)

The purpose of this report is to summarize the non-tokamak experiments. The non-tokamaks naturally seek to establish reactor relevance. This applies specifically to RFPs and helical systems. With LHD, a large heliotron introduced to the international fusion community at this conference, a large step toward a stellarator power plant has been taken. Another potential of non-tokamaks is that they can contribute in a unique form to the understanding of magnetic confinement and specifically to toroidal confinement because they are not tokamaks. Most of the non-tokamaks are toroidal: helical systems, RFPs, FRCs, CTs, dipoles and spheromaks. Mirrors, traps,foci are non-toroidal systems

259

ATRAP antihydrogen experiments  

International Nuclear Information System (INIS)

Antihydrogen (Hbar) was first produced at CERN in 1996. Over the past decade our ATRAP collaboration has made massive progress toward our goal of producing large numbers of cold Hbar atoms that will be captured in a magnetic gradient trap for precise comparison between the atomic spectra of matter and antimatter. The AD at CERN provides bunches of 3 x 107 low energy Pbars every 100 seconds. We capture and cool to 4 K, 0.1% of these in a cryogenic Penning trap. By stacking many bunches we are able to do experiments with 3 x 105 Pbars. ?100 e+/sec from a 22Na radioactive source are captured and cooled in the trap, with 5 x 106 available experiments.We have developed 2 ways to make Hbar from these cold ingredients, namely 3-body collisions, and 2-stage Rydberg charge exchange. In the first case, Pbars are injected into a nested trap containing e+. Hbar is formed when 2 e+ and 1 Pbar collide. In 2-stage Rydberg charge exchange, laser-excited caesium (Cs) enters the trap through a small hole. Rydberg positronium is formed when a e+ captures an e-from a Cs. These atoms exit the trap, some passing through a nearby cloud of cold Pbars. A 2nd charge-exchange results when a Pbar captures the e+, forming Hbar. We have also developed techniques to measure the excited-state distribution of the Hbar and measure their velocity. I will present results from these experiments and discusesults from these experiments and discuss the next generation of apparatus to be commissioned this year. This new apparatus includes a e+ accumulator built at York University providing many more e+. The new Pbar annihilation detector provides spatial information of annihilations. Windows allow lasers to enter the trap for spectroscopic measurements and for laser cooling of the Hbar. Possibly the most exciting inclusion in this new apparatus is the inclusion of a neutral particle trap which may, for the first time, capture the Hbar and lead to the first atomic spectrum from antimatter. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

260

Proteins in the experiment  

International Nuclear Information System (INIS)

The backbone of ferredoxin and hemoproteins are described by SAWs in two and three dimensions. But the spin-lattice relaxation process of Fsub(e)3+ ions cannot be described by pure fractal model. The spectral dimensions observed in experiment is defined through dsub(s)=dsub(f)/a, a is given by the scaling form of the low frequency mode ?(bL)=bsup(a)?(L) of the whole system consisting of proteins and the solvent upon a change of the length scale. (author)

 
 
 
 
261

The DITE tokamak experiment  

International Nuclear Information System (INIS)

The expectation of power from fusion reactions currently involves magnetic containment of hot plasma in the tokamak toroidal configuration, and plasma heating by injection of energetic neutral atoms. Isolation of the plasma from the walls, to maintain the required purity, and exhaust of the spent fuel both involve the use of a divertor. This removes plasma from the boundary layer into a separate chamber. Tests of these concepts in the Divertor Injection Tokamak Experiment (DITE) at Culham Laboratory are reported. The first measurements in a tokamak of the neutral-beam driven current is also presented. This demonstrates the principle of a continuously operating tokamak, with possible advantages for a reactor. (author)

262

Art and experience  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This three-part dissertation is on the double role of experience in art: as a subject matter, and as the vehicle for our evaluations. It argues (Part three, Chs. 7, 8) for the inclusion within contemporary analytical ‘cognitivism’ (Part one, Chs. 1-3) of certain arguments from the founding fathers of aesthetics, Baumgarten and Kant (Part two, Chs. 4-6). I argue... 1. that depiction ought to be understood in terms of anticipated resemblances (resemblance-a, for short). (Against Goodman'...

Gerwen, R. C. H. M.

1996-01-01

263

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)

264

Neutralized transport experiment  

Energy Technology Data Exchange (ETDEWEB)

Experimental details on providing active neutralization of high brightness ion beam have been demonstrated for Heavy Ion Fusion program. A K{sup +} beam was extracted from a variable-perveance injector and transported through 2.4 m long quadrupole lattice for final focusing. Neutralization was provided by a localized cathode arc plasma plug and a RF volume plasma system. Effects of beam perveance, emittance, convergence focusing angle, and axial focusing position on neutralization have been investigated. Good agreement has been observed with theory and experiment throughout the study.

Roy, P.K. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)]. E-mail: PKRoy@lbl.gov; Yu, S.S. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Eylon, S. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Henestroza, E. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Anders, A. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Gilson, E.P. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States); Bieniosek, F.M. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Greenway, W.G. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Logan, B.G. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Waldron, W.L. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Shuman, D.B. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Vanecek, D.L. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Welch, D.R. [Mission Research Corporation, Albuquerque, New Mexico 87110-3946 (United States); Rose, D.V. [Mission Research Corporation, Albuquerque, New Mexico 87110-3946 (United States); Thoma, C. [Mission Research Corporation, Albuquerque, New Mexico 87110-3946 (United States); Davidson, R.C. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States); Efthimion, P.C. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States); Kaganovich, I. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States); Sefkow, A.B. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States); Sharp, W.M. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

2005-05-21

265

Doublet III experiment  

International Nuclear Information System (INIS)

An overview of the Doublet-3 physics is presented. Detailed discussions are given on the topics of the plasma experiments performed on Doublet-3, plasma equilibrium calculations and magnetic data analysis, impurity control, high density plasma operation, transport in Doublet-3 and neutral beam physics. The diagnostics on Doublet-3 are discussed, including magnetic diagnostics, hard x-ray monitors, plasma photography, microwave interferometers, Thomson scattering (system A), visible spectroscopy, soft x-ray energy spectrometer, soft x-ray fluctuations, and electron cyclotron radiometers

266

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

267

The Malaysia LNG experience  

International Nuclear Information System (INIS)

This paper summarizes the nature of the LNG trade, the essential components and characteristics of an LNG project, and relates the Malaysia LNG experience to project realization with some emphasis on the financial aspects of the project. Twelve offshore lending institutions were involved in the total project loop providing U.S. dollar equivalents of 4.0 billions with interest rates ranging from 5% to 8%. The total project was completed on schedule and within budget except for the ships which got caught in the political development of the Malaysian petroleum industry at that time

268

Experiments of radiochemistry  

International Nuclear Information System (INIS)

In the first part of this introductory laboratory book to radiochemistry, terms, definitions and radiation protection measures are discussed for the basic handling of radioactive materials. The second part then deals with the practical radiometric and radiochemical tests. It is divided into measuring methods, half-life determination of radionuclides, detection and separation methods of radionuclides, application of radioisotopes in inorganic and analytical chemistry and finally in organic and biochemistry. Only those examples were selected which enable work below the legally controlled limits for radionuclides and for which an uncomplicated measuring device (Geiger-Mueller measuring desk) suffices. All experiments are uniformly set up: Introduction, safety measures, materials and equipment, performance, evaluation. (RB)

269

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

270

Progress on STELLA Experiment  

International Nuclear Information System (INIS)

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

271

The Baikal neutrino experiment  

Energy Technology Data Exchange (ETDEWEB)

We review the status of the Lake Baikal Neutrino Experiment. Preparation towards a km{sup 3}-scale Gigaton Volume Detector (GVD) in Lake Baikal is currently a central activity. As an important milestone, a km{sup 3}-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.

Avrorin, A. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Aynutdinov, V., E-mail: aynutdin@yandex.r [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Balkanov, V. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Belolaptikov, I. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Berezhnev, S. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Bogorodsky, D.; Budnev, N. [Irkutsk State University, Irkutsk (Russian Federation); Danilchenko, I.; Domogatsky, G.; Doroshenko, A. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Dyachok, A. [Irkutsk State University, Irkutsk (Russian Federation); Dzhilkibaev, Zh. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Ermakov, G. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Fialkovsky, S. [Nizhni Novgorod State Technical University, Nizhni Novgorod (Russian Federation); Gaponenko, O. [Institute for Nuclear Research, 60th October Anniversary pr. 7a, Moscow 117312 (Russian Federation); Golubkov, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Gres' , O.; Gres' , T. [Irkutsk State University, Irkutsk (Russian Federation); Grishin, N. [Skobeltsyn Institute of Nuclear Physics MSU, Moscow (Russian Federation); Grishin, O. [Irkutsk State University, Irkutsk (Russian Federation)

2011-01-21

272

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)

273

Magnetic monopole search experiments  

International Nuclear Information System (INIS)

Experimental searches for the elusive magnetic monopole have extended over 50 years -- ever since Dirac showed that the existence of isolated magnetic charges could account for the observation of quantized electric charge. Early searches for Dirac's monopole were hampered since there was no indication of the expected monopole mass, velocity, or origin in the theory. Consequently, numerous experiments searched more or less blindly for relativistic low mass monopoles in the cosmic rays and in particle collisions at high energy accelerators. In this paper, the author reviews briefly the monopole properties which are relevant for their detection and summarize current experimental efforts using induction, ionization/excitation, and catalysis techniques

274

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

275

Results of railgun experiments  

International Nuclear Information System (INIS)

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

276

Fundamental experiments in velocimetry  

International Nuclear Information System (INIS)

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

277

Fundamental Experiments in Velocimetry  

Science.gov (United States)

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

Briggs, Matthew E.; Hull, Lawrence M.; Shinas, Michael A.

2009-12-01

278

Experiments on Superheavy Elements  

Science.gov (United States)

An overview of present experimental investigation of superheavy elements is given. Using cold fusion reactions which are based on lead and bismuth targets, relatively neutron deficient isotopes of the elements from 107 to 113 were synthesized at GSI in Darmstadt, Germany, and/or at RIKEN in Wako, Japan. In hot fusion reactions of 48Ca projectiles with actinide targets more neutron rich isotopes of the elements from 112 to 116 and even 118 were produced at FLNR in Dubna, Russia. Recently, part of these data which represent the first identification of nuclei located on the predicted island of SHEs were confirmed in two independent experiments. The data are compared with theoretical descriptions.

Hofmann, Sigurd

279

Initial blood storage experiment  

Science.gov (United States)

The possibility of conducting experiments with the formed elements of the blood under conditions of microgravity opens up important opportunities to improve the understanding of basic formed element physiology, as well as, contribution to improved preservation of the formed elements for use in transfusion. The physiological, biochemical, and physical changes of the membrane of the erythrocyte, platelet, and leukocyte was studied during storage under two specific conditions: standard blood bank conditions and microgravity, utilizing three FDA approved plastic bags. Storage lesions; red cell storage on Earth; platelet storage on Earth; and leukocyte storage Earth were examined. The interaction of biomaterials and blood cells was studied during storage.

Surgenor, Douglas MACN.

1988-01-01

280

Time to experiment  

Directory of Open Access Journals (Sweden)

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

Gráinne Conole

2002-12-01

 
 
 
 
281

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

282

Muller Lyer Experiment  

Science.gov (United States)

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

283

Cryogenic equivalence principle experiment  

International Nuclear Information System (INIS)

The Weak Equivalence Principle is the hypothesis that the ratio of passive gravitational mass to inertial mass is the same for all bodies regardless of their composition. This principle has a fundamental place in physics as the experimental basis for Einstein's Strong Equivalence Principle, which is a postulate of General Relativity. Since any violation of the principle would have very profound consequences for gravitational theory, it is important to test the principle to the greatest possible accuracy. The author describes an experiment which consists in directly comparing the accelerations of two test bodies floating in superconducting magnetic bearings. (Auth.)

284

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

285

Mössbauer Magnetic Scan experiments  

Science.gov (United States)

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

Pasquevich, G. A.; Mendoza Zélis, P.; Lencina, A.; Veiga, A.; Fernández van Raap, M. B.; Sánchez, F. H.

2014-06-01

286

Installation for rewetting experiments  

International Nuclear Information System (INIS)

A test facility for rewetting experiments (ITR), has been erected at the Thermalhydraulics Laboratory of Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), with the objective of performing investigation of basic phenomena that occur during the reflood phase of a Loss of Coolant Accident (LOCA), in a Pressurized Water Reactor (PWR), utilizing tubular and annular test sections. The mechanical aspects of the facility, its power supply system and its instrumentation are described. The results of the calibration of the instruments and the description of two typical testes performed to verify the operational conditions are presented. A comparison with calculations using a computer code is also presented. (Author)

287

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

288

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

289

Cibola flight experiment  

Energy Technology Data Exchange (ETDEWEB)

Los Alamos National Laboratory is building the Cibola Flight Experiment (CFE), a reconfigurable processor payload intended for a Low Earth Orbit system. It will survey portions of the VHF and UHF radio spectra. The experiment uses networks of reprogrammable, Field Programmable Gate Arrays (FPGAs) to process the received signals for ionospheric and lightning studies. The objective is to validate the on-orbit use of commercial, reconfigurable FPGA technology utilizing several different single-event upset mitigation schemes. It will also detect and measure impulsive events that occur in a complex background. Surrey Satellite Technology, Ltd (SSTL) is building the small host satellite, CFESat, based upon SSTL's disaster monitoring constellation (DMC) and Topsat mission satellite designs. The CFESat satellite will be launched by the Space Test Program in September 2006 on the US Air Force Evolved Expendable Launch Vehicle (EELV) using the EELV's Secondary Payload Adapter (ESPA) that allows up to six small satellites to be launched as 'piggyback' passengers with larger spacecraft.

Roussel-Dupre, D. (Diane); Caffrey, M. P. (Michael Paul)

2004-01-01

290

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

291

Toroidal confinement experiments  

International Nuclear Information System (INIS)

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

292

The Karlsruhe Dynamo Experiment  

Directory of Open Access Journals (Sweden)

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

2002-01-01

293

Patients' group experiences.  

Science.gov (United States)

In 11 years of experience with dialysis, we have tried to supply a kind of treatment in our center that takes the patient's physical, psychological, and social needs into account. We have been able to observe how important it is to share the common problems connected with a chronic illness in order to make them appear less dramatic. This led to the idea of organizing a group holiday in which the patients and their families would be able to spend some time together. As a result of this positive experience, we decided to organize group encounters in which all the problems could be freely discussed. The group is open to all the patients on dialysis or who have undergone transplants and their families. The group, which has been meeting once every 3 weeks for the last 2 years, is coordinated by a psychologist. This has proved to be important both for the operators, who have been able to expand their own knowledge, and for the patients and their families for whom these gatherings represent a way of helping themselves face up to and accept the limits imposed by chronic illness. PMID:8399565

Cerruti, G; Cotto, M; Rivetti, M; Servetti, L; Baracco, M; Ferrero, R

1993-01-01

294

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

295

Experiments with $\\Xi^-$ atoms  

CERN Document Server

Experiments with $\\Xi^-$ atoms are proposed in order to study the nuclear interaction of $\\Xi$ hyperons. The production of $\\Xi^-$ in the ($K^{-}$, $K^{+}$) reaction, the $\\Xi^-$ stopping in matter, and its atomic cascade are incorporated within a realistic evaluation of the results expected for $\\Xi^-$ X-ray spectra across the periodic table, using an assumed $\\Xi$-nucleus optical potential $V_{opt}$. Several optimal targets for measuring the strong-interaction shift and width of the X-ray transition to the `last' atomic level observed are singled out: F, Cl, I, Pb. The sensitivity of these observables to the parameters of $V_{opt}$ is considered. The relevance of such experiments is discussed in the context of strangeness -2 nuclear physics and multistrange nuclear matter. Finally, with particular reference to searches for the $H$ dibaryon, the properties of $\\Xi^-d$ atoms are also discussed. The role of Stark mixing, its effect on $S$ and $P$ state capture of $\\Xi^-$ by the deuteron, together with estimate...

Batty, C J; Gal, A

1999-01-01

296

Cusp Injection Experiment  

International Nuclear Information System (INIS)

A brief survey is given of the characteristics of the ? = 1 cusped configuration and the experimental techniques for establishing hot field-free cusped plasmas. Results from the cusp compression experiments at the Culham Laboratory are summarised and it is concluded that wall and external plasma effects make it extremely difficult to obtain a cusp hole of size less than an ion gyro-diameter by the compression method. An injection technique is described in which hot field-free plasma is transferred from a conical theta-pinch gun through a uniform magnetic guide field into a cusped field region where directed energy is randomised by collision with counter-streaming plasma. Experimental results are presented on gun development, on the injection of plasma into guide fields and on the stability of flow of plasma ''spears'' along guide fields. Preliminary measurements on plasma trapping in a cusped region are reported. Experiments on the collision of plasmas in guide field and zero field show the importance of very low magnitude trapped magnetic fields in causing strong interaction and randomisation of directed energy. The study of a magnetic mirror plasma formed by colliding plasma spears indicates that thermal conductivity may be the major energy loss process. (author)

297

The Majorana Experiment  

International Nuclear Information System (INIS)

The MAJORANA Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in 76Ge. Initially, MAJORANA aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype DEMONSTRATOR module are presented. Our proposed method uses the well-established technique of searching for neutrinoless double-beta decay in high purity Ge-diode radiation detectors that play both roles of source and detector. The use of P-PC Ge detectors present advances in background rejection and a Significantly lower energy threshold than conventional Ge detector technologies. The lower energy threshold opens up a broader and exciting physics program including searches for dark matter and axions concurrent with the double-beta decay search. The DEMONSTRATOR should establish that the backgrounds are low enough to justify scaling to tonne-scale experiment, probe the neutrino effective mass region above 100 meV, and search the low energy region with a sensitivity to dark matter. The DEMONSTRATOR will be sited at the 4850-ft level (4200 m.w.e) of the Sanford Underground Laboratory at Homestake and preparations for construction are currently underway.

298

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

299

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

300

Exporting the hydro experience  

Energy Technology Data Exchange (ETDEWEB)

Energy needs in developing countries throughout the world are expanding at a rate more than double that of the US. Not only is there a growing need for reliable sources of energy in developing countries, but the trend in these capital-poor countries is to build the legal framework to allow for private development. This situation provides hydropower industry organizations with unique opportunities for exporting their knowledge and experience to develop small-scale hydropower projects. The experience of the American hydro industry with small-scale facilities, financed by private entities and backed by the project itself, is definitely an [open quotes]exportable product.[close quotes] However, the road getting there is not a smooth one. As American hydro companies look at exporting their ideas and expertise, they should be aware that exporting any commodity -- including expertise in hydro development -- is a long-term proposition and requires a long-term commitment. Fifty successful exporters polled by Business America magazine in 1990 said the keys to exporting are making a commitment and sticking with it; recognizing exporting as a full-time responsibility and devoting full attention to it; and perseverance.

Rogers, W.L.; Bourgeacq, J.P. (Synergics, Inc., Annapolis, MD (United States))

1992-06-01

 
 
 
 
301

The Early Experiments  

Science.gov (United States)

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

Garvey, Gerald

2013-04-01

302

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

303

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

304

Solid Surface Combustion Experiment Imagery from the experiment camera.  

Science.gov (United States)

Solid Surface Combustion Experiment Imagery from the self contained experiment camera in Spacelab rack # 10. Scene contains a pair of burning ashless filter paper samples to test combustability and spread of fire in a weightless environment.

1992-01-01

305

An experiment on experiments in a senior laboratory  

Science.gov (United States)

In a senior modern physics laboratory, "design" or "ingenuity" experiments were introduced to acquaint students with methods of doing complete experiments. The former deals with proposed long term studies while the latter deals with apparatus and short term actual studies.

Finegold, Leonard; Hartley, Charles L.

2006-05-17

306

Rethinking Experience: What Do We Mean by This Word "Experience"?  

Science.gov (United States)

This paper uses autoethnography to reassess the concept "experience" and the lack of theoretical frameworks within experiential education for delimiting experience within the practices and research around experiential, adventure, and outdoor education. Although a pivotal and essential part of practice, theoretical understandings of experience have…

Fox, Karen

2008-01-01

307

An Experiment on Experiments in a Senior Laboratory  

Science.gov (United States)

In a senior modern physics laboratory, design" or ingenuity" experiments were introduced to acquaint students with methods of doing complete experiments. The former deals with proposed long term studies while the latter deals with apparatus and short term actual studies. Students rated the design" experiments higher. (Author/TS)

Finegold, Leonard; Hartley, Charles L.

1972-01-01

308

Nonlinear dynamics experiments  

Energy Technology Data Exchange (ETDEWEB)

The goal of nonlinear dynamics experiments is to improve the understanding of single particle effects that increase the particle amplitude and lead to loss. Particle motion in storage rings is nearly conservative and for transverse dynamics the Hamiltonian in action angle variables (I{sub x},I{sub y},{phi}{sub x},{phi}{sub y}) near an isolated resonance k{nu}{sub x} + l{nu}{sub y} {approx} p is H = I{sub x}{nu}{sub x0} + I{sub y}{nu}{sub y0} + g(I{sub x}, I{sub y}) + h(I{sub x}, I{sub y})cos(k{phi}{sub x} + l{phi}{sub y} - p{theta}), (1) where k, l, p are integers, {theta} = 2{pi}s/L is the azimuth, and s and L are the path length and circumference respectively. The amplitude dependent tunes are given by {nu}{sub x,y}(I{sub x},I{sub y}) = {nu}{sub x0,y0} + {partial_derivative}g(I{sub x},I{sub y})/{partial_derivative}I{sub x,y} (2) and h(I{sub x},I{sub y}) is the resonance driving term (RDT). If the motion is governed by multiple resonances, h(I{sub x},I{sub y}) has to be replace by a series of terms. The particle motion is completely determined by the terms g and h, which can be calculated from higher order multipoles (Sec. ??), or obtained from simulations. Deviations from pure Hamiltonian motion occur due to synchrotron radiation damping (Sec. ??) in lepton or very high energy hadron rings, parameter variations, and diffusion processes such as residual gas and intrabeam scattering. The time scale of the non-Hamiltonian process determines the applicability of the Hamiltonian analysis. Transverse nonlinearities are introduced through sextupoles or higher order multipoles and magnetic field errors in dipoles and quadrupoles. Sextupoles can already drive all resonances. The beam-beam interaction and space charge also introduce nonlinear fields. Intentionally introduced nonlinearities are used to extract beam on a resonance or through capture in stable islands. Localization and minimization of nonlinearities in a ring is a general strategy to decrease emittance growth and increase the beam lifetime. The minimization of nonlinear effects can be done locally or globally. Except for resonant extraction, amplitude increase and particle loss is the result of chaotic particle motion. Large chaotic regions allow particles to increase their amplitudes, and ensures their ultimate loss. However, chaotic particles can, on average, still survive the time period of interest, i.e. the storage time. Nonlinear dynamics experiments aim to determine either the detuning and driving terms g and h directly, or their effect on other quantities. Nonlinear phenomena observed in experiments include phase space deformations and resonant islands in Poincare surfaces of section, nonlinear phase advances, amplitude detuning g, decoherence (Sec. ??), resonance driving terms h, smear, halo formation, echoes (Sec. ??), the tune response matrix, dynamic aperture (Sec. ??), emittance growth, and particle loss. Nonlinear experiments can also be done in the longitudinal plane.

Fischer, W.

2011-01-01

309

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

310

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

311

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

312

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

313

Promoting individualized breastfeeding experiences.  

Science.gov (United States)

Breastfeeding is beneficial for the baby and the mother, but is yet to be successfully practiced by newly delivered women as proposed in the Healthy People 2020 goal. Most breastfeeding education during the prenatal or postpartum period provides adequate information for interested women. However, mothers need individualized client-professional interactions and follow-up after hospital discharge. This article describes the breastfeeding experiences of two women and the implications for nurses and other healthcare professionals in relation to efforts to promote breastfeeding. Two anecdotal case studies are presented illustrating that even when mothers have resources and education, the breastfeeding education can be frustrating and misunderstood. Nurses can master the skill of closing the feedback loop in breastfeeding education by assessing and clarifying women's interpretation of breastfeeding information they received. This nursing skill can empower mothers to make informed decisions for effective and sustained breastfeeding. PMID:22549423

Rossman, Carol L; Ayoola, Adejoke B

2012-01-01

314

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

315

?-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

316

Spherical torus experiment (STX)  

International Nuclear Information System (INIS)

The principal engineering features of the proposed Spherical Torus Experiment (STX) are described. Design is dominated by the small bore available for the ohmic heating (OH) solenoid and structural considerations for a situation in which B/sub p/ is approximately equal to B/sub t/. Unique features of a spherical torus plasma include large elongations without shaping fields; an exceptionally high ratio of plasma current to toroidal field, giving the potential for stability at very high beta; strong paramagnetism; and a variety of configurations, ranging from tokamak (q/sub a/) to revised-field pinch (RFP) (q/sub a/ 0 = 0.45, and K = 2. 3 refs., 9 figs

317

Tribology theory versus experiment  

Science.gov (United States)

Tribology, the study of friction and wear of materials, has achieved a new interest because of the need for energy conservation. Fundamental understanding of this field is very complex and requires a knowledge of solid-state physics, material science, chemistry, and mechanical engineering. This paper is meant to be didactic in nature and outlines some of the considerations needed for a tribology research program. The approach is first to present a simple model, a field emission tip in contact with a flat surface, in order to elucidate important considerations, such as contact area, mechanical deformations, and interfacial bonding. Then examples from illustrative experiments are presented. Finally, the current status of physical theories concerning interfacial bonding are presented.

Ferrante, John

1987-01-01

318

American Experience: Earth Days  

Science.gov (United States)

In late 1969, Wisconsin Senator Gaylord Nelson hired Denis Hayes to organize a national teach-in day about the importance of protecting the environment for future generations. On April 22, 1970, the first Earth Day was held and over 20 million Americans participated via a variety of celebrations and demonstrations. This website is designed to be a companion to the American Experience documentary on the history of Earth Day, and it includes a teacher's guide, several special interviews, and the documentary in its entirety. The film was directed by Robert Stone, and it serves as "a poetic meditation on man's complex relationship with nature and an engaging history...of groundbreaking eco-activism." On the homepage, visitors should also take note of the photo gallery, the interactive timeline of the modern environmental movement, and a telling interview with the father of the "Green Revolution", Norman Borlaug. Visitors are also encouraged to share their own Earth Day memories on the site.

319

A European experiment  

International Nuclear Information System (INIS)

The Joint European Torus (JET) is an experiment in nuclear fusion research which was planned as a joint effort between national research laboratories and Euratom. Before approval was given for it to be built it became a political football in the European Communities. This book describes the background against which JET was conceived, designed and planned. It gives a chronological account of the political imbroglio which followed between 1975 and 1978 and indicates how close the project came to collapse at one point. In addition to the two years' delay caused by Ministerial conflicts over its siting, the project suffered many compromises in its financing, its staffing and its organisation. An account is given of the unique structure of the European Communities and its procedures, which shows how idealism constantly faces reality. The role of Euratom is discussed, taking into account the difference between its approach to applications of nuclear fission as opposed to those of nuclear fusion. (author)

320

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

 
 
 
 
321

Baryon conservation (experiments)  

International Nuclear Information System (INIS)

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

322

Limit experiments of GARCH  

CERN Document Server

GARCH is one of the most prominent nonlinear time series models, both widely applied and thoroughly studied. Recently, it has been shown that the COGARCH model (which was introduced a few years ago by Kl\\"{u}ppelberg, Lindner and Maller) and Nelson's diffusion limit are the only functional continuous-time limits of GARCH in distribution. In contrast to Nelson's diffusion limit, COGARCH reproduces most of the stylized facts of financial time series. Since it has been proven that Nelson's diffusion is not asymptotically equivalent to GARCH in deficiency, in the present paper, we investigate the relation between GARCH and COGARCH in Le Cam's framework of statistical equivalence. We show that GARCH converges generically to COGARCH, even in deficiency, provided that the volatility processes are observed. Hence, from a theoretical point of view, COGARCH can indeed be considered as a continuous-time equivalent to GARCH. Otherwise, when the observations are incomplete, GARCH still has a limiting experiment, which we ...

Buchmann, Boris; 10.3150/10-BEJ328

2012-01-01

323

Wake field acceleration experiments  

Energy Technology Data Exchange (ETDEWEB)

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.

Simpson, J.D.

1988-01-01

324

Experience with Kamini reactor  

International Nuclear Information System (INIS)

Kamini is a 233U fuelled, 30 kW(th) research reactor. It is one of the best neutron source facility with a core average flux of 1012 n/cm2/s in IGCAR used for neutron radiography of active and nonradioactive objects, activation analysis and radiation physics research. The core consists of nine plate type fuel elements with a total fuel inventory of 590 g of 233U. Two safety control plates made of cadmium are used for start up and shutdown of the reactor. Three beam tubes, two-thimble irradiation site outside reflector and one irradiation site nearer to the core constitute the testing facilities of Kamini. Kamini attained first criticality on 29th October 96 and nominal power of 30 kW in September 1997. This paper covers the design features of the reactor, irradiation facilities and their utilities and operating experience of the reactor. (author)

325

Moessbauer experiments, ch. 1  

International Nuclear Information System (INIS)

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

326

The Stanford experiment  

International Nuclear Information System (INIS)

The central element of the Stanford relativity experiment is a cryogenic gyroscope with a performance in space many orders of magnitude superior to that of conventional earth-bound devices. In the early phases of the program, a great deal of thought was given to the problem of achieving the performance goal, and an entirely new gyro concept was developed based on the application of cryogenic techniques to electrostatic gyroscopes. In this paper the authors describe the construction of the gyroscope, outline its development into an operational laboratory device, and present some of the results obtained with it. They also give a brief account of the torque analysis which demonstrates that it is feasible to make a gyroscope with the desired performance

327

Clickers + Demos = Experiment!  

Science.gov (United States)

Although there is widespread interest in the use of clickers in astronomy classrooms, there remains controversy over their effectiveness and confusion as to how and when to use them. At UMass Amherst, where nearly 1000 students take large-lecture introductory astronomy courses each term, we have studied how to combine "new" and "old" learning methods to create course "components" (e.g., Stage & Schneider, BAAS 38, 1145). One of the most exciting branches of this study is the combination of clicker questions with physical and multi-media demonstrations. This provides opportunities for students to actually participate in demonstrations, rather than just observe them. This transforms the student experience from passive audience member to active experimenter. In this session, we discuss how to formulate pre- and post- demo questions and how different question styles may be employed. We also present our approach to assessment and discuss the results from our classrooms.

Stage, Michael; Schneider, S.

2007-12-01

328

High energy beam experiment  

Science.gov (United States)

Experiments in devices named SPAC have demonstrated that several toroidal magnetic configurations are formed by intense relativistic electron beam currents. A toroidal device SPAC-VII was brought into operation. In this device, a configuration like Spherator or Levitron was found. It is generated by a slender electron beam ring which performs the function of the hard core of Spherator. Such a kind of core may be called REB Soft Core. The safety factor q at the periphery of the core was as low as 0.6 and the plasma confinement region extended to about 1 = 1 surface. Therefore, it can be said that experimental evidence of the realization of Astron-Spherator which had been considered more than years ago was given by this work.

1984-03-01

329

Nuclear fuel accountability experience  

International Nuclear Information System (INIS)

The use of burnup credit for dry storage nuclear fuel casks requires that the reactivity of the fuel assemblies be properly verified. As an operating nuclear utility, Virginia Power Company has extensive experience in the administrative control of fuel assemblies from the time they arrive on-site until the time they are dispositioned for final storage, whether in pool storage, dry cask storage, or off-site shipment. The initial uranium enrichment is verified before the assembly arrives on-site, and analyses determine the burnup and the uranium and plutonium content of the assembly during its operation. Assemblies that may have experienced fuel cladding defects, as indicated by reactor coolant system radionuclide measurements, are examined following the fuel cycle and placed on a restricted list of fuel assemblies which are not to be reused in a reactor

330

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

331

Tritium neutrino mass experiments  

International Nuclear Information System (INIS)

The current status of the experimental search for neutrino mass is reviewed, with emphasis on direct kinematic methods, such as the beta decay of tritium. The situation concerning the electron neutrino mass as measured in tritium beta decay is essentially unchanged from a year ago, although a great deal of experimental work is in progress. The ITEP group continues to find evidence for a nonzero mass, now slightly revised to 26(5) eV. After correcting for recently discovered errors in the energy loss distribution and source thickness, however, the Z/umlt u/rich group still claims and upper limit of 18 eV. There may be evidence for neutrino mass and mixing in the SN1987a data, in the same range suggested by the ITEP experiment. 42 refs., 3 figs

332

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

333

Information sciences experiment system  

Science.gov (United States)

The rapid expansion of remote sensing capability over the last two decades will take another major leap forward with the advent of the Earth Observing System (Eos). An approach is presented that will permit experiments and demonstrations in onboard information extraction. The approach is a non-intrusive, eavesdropping mode in which a small amount of spacecraft real estate is allocated to an onboard computation resource. How such an approach allows the evaluation of advanced technology in the space environment, advanced techniques in information extraction for both Earth science and information science studies, direct to user data products, and real-time response to events, all without affecting other on-board instrumentation is discussed.

Katzberg, Stephen J.; Murray, Nicholas D.; Benz, Harry F.; Bowker, David E.; Hendricks, Herbert D.

1990-01-01

334

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

335

Organic conditioners - studies, experiences  

International Nuclear Information System (INIS)

The examination of waters treated with organic conditioners yielded unsatisfactory results in terms of their respective purposes. The risk of an incident in the heat exchanger leading to the contamination of the plant's water-steam cycle with unknown substances appeared too great. The distributor of the products was not helpful on questions of chemistry. The operating results of the past three years would appear to support our decision to perform the conditioning in accordance with instruction sheet VGB-M 410 N. The cost advantage of this conditioning method also deserves mention. Conditioning with product A1 is approx. 60 times as expensive as classic NaOH conditioning. If at all, conditioning conversion to organic substances should only be done after due consideration to all side constraints, water quality etc., as otherwise massive damage can occur. Experiences from our consulting activities, too, vindicated our decision about St. Andrae in 1989. (EF)

336

[Laparoscopic adrenalectomy: our experience].  

Science.gov (United States)

Since 2002 19 laparoscopic adrenalectomies with a lateral transperitoneal access have been performed at our Division of Surgery. Three patients had Conn's syndrome, 8 incidentaloma, 4 pheochromocytoma, 2 Cushing's syndrome, 1 metastases from a contralateral renal cancer and 1 metastases from lung cancer. The parameters considered for data analysis were: intra- and postoperative hypertensive crises, haemorrhage, subcutaneous emphysema, conversions, dura- tion of surgery, hospital stay, postoperative comfort, and canalisation and mobilisation times. The results obtained in our experience were comparable to those reported in the literature, confirming the reproducibility and feasibility of this type of surgical procedure. Comparison of the data obtained with laparoscopic, surgery and those obtained with traditional surgical treatment suggest that it is reasonable to claim that the laparoscopic approach is today the gold standard for adrenal surgery. PMID:17663364

Pantuso, Gianni; Grassi, Nello; Bottino, Alessandro; Cipolla, Calogero; Lo Iacono, Angelo; Cacace, Ermenegilda; Rizzo, Marta; Farinella, Eleonora

2007-01-01

337

Cell Radiation Experiment System  

Science.gov (United States)

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

Morrison, Dennis R.

2010-01-01

338

Biodiversity laws: State experiences  

Science.gov (United States)

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

Clark, Jo

1996-11-01

339

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

340

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

 
 
 
 
341

Spina Bifida Experience: Developing Independence  

Medline Plus

Full Text Available ... 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 of ...

342

Spina Bifida Experience: Developing Independence  

Science.gov (United States)

... 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 of ...

343

Experience representation in information systems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis looks into the ways subjective dimension of experience could be represented in artificial, non-biological systems, in particular information systems. The pivotal assumption is that experience as opposed to mainstream thinking in information science is not equal to knowledge, so that experience is a broader term which encapsulates both knowledge and subjective, affective component of experience, which so far has not been properly embraced by knowledge representation theories. Th...

Kaczmarek, Jan

2014-01-01

344

Customer Experience Management in Retailing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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

2010-01-01

345

Integral experiments for fusion reactors  

International Nuclear Information System (INIS)

Recent works in the area of integral experiments for fusion reactors are reviewed categorizing them into three classes. An emphasis is put on the experiments for neutron multiplying materials, Beryllium and Lead. Introduction of activities is made on the examination of the tentative version for JENDL-3 and new disign-oriented experiments. A comment is given on the accuracies in experiment and analysis. (author)

346

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

347

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; Belov, A; Kaltenbacher, T R; Boscolo, I; Ferragut, R O; Nedelec, P; Testera, G; Bonomi, G; Al-qaradawi, I; De almeida simoes, J J; Brusa, R S; Prelz, F; Manuzio, G; Riccardi, C; Fontana, A; Genova, P; Haug, F; Ettenauer, S; 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; Dudarev, A; Kellerbauer, A G; Mariazzi, S; Nesteruk, K P; Eisel, W T; Carraro, C; Zavatarelli, S M

348

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

349

Demystifying the Delayed Choice Experiments  

CERN Document Server

The delayed choice experiments are a collection of experiments where the counterintuitive laws of quantum mechanics are manifested in a very striking way. Although the delayed choice experiments can be very accurately described with the standard framework of quantum optics, a more didactical and intuitive explanation seems not to have been given so far. In this note, we fill that gap.

Gaasbeek, Bram

2010-01-01

350

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

351

Early smoking experience in adolescents  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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

352

The Cool Flames Experiment  

Science.gov (United States)

A space-based experiment is currently under development to study diffusion-controlled, gas-phase, low temperature oxidation reactions, cool flames and auto-ignition in an unstirred, static reactor. At Earth's gravity (1g), natural convection due to self-heating during the course of slow reaction dominates diffusive transport and produces spatio-temporal variations in the thermal and thus species concentration profiles via the Arrhenius temperature dependence of the reaction rates. Natural convection is important in all terrestrial cool flame and auto-ignition studies, except for select low pressure, highly dilute (small temperature excess) studies in small vessels (i.e., small Rayleigh number). On Earth, natural convection occurs when the Rayleigh number (Ra) exceeds a critical value of approximately 600. Typical values of the Ra, associated with cool flames and auto-ignitions, range from 104-105 (or larger), a regime where both natural convection and conduction heat transport are important. When natural convection occurs, it alters the temperature, hydrodynamic, and species concentration fields, thus generating a multi-dimensional field that is extremely difficult, if not impossible, to be modeled analytically. This point has been emphasized recently by Kagan and co-workers who have shown that explosion limits can shift depending on the characteristic length scale associated with the natural convection. Moreover, natural convection in unstirred reactors is never "sufficiently strong to generate a spatially uniform temperature distribution throughout the reacting gas." Thus, an unstirred, nonisothermal reaction on Earth does not reduce to that generated in a mechanically, well-stirred system. Interestingly, however, thermal ignition theories and thermokinetic models neglect natural convection and assume a heat transfer correlation of the form: q=h(S/V)(T(bar) - Tw) where q is the heat loss per unit volume, h is the heat transfer coefficient, S/V is the surface to volume ratio, and (T(bar) - Tw ) is the spatially averaged temperature excess. This Newtonian form has been validated in spatially-uniform, well-stirred reactors, provided the effective heat transfer coefficient associated with the unsteady process is properly evaluated. Unfortunately, it is not a valid assumption for spatially-nonuniform temperature distributions induced by natural convection in unstirred reactors. "This is why the analysis of such a system is so difficult." Historically, the complexities associated with natural convection were perhaps recognized as early as 1938 when thermal ignition theory was first developed. In the 1955 text "Diffusion and Heat Exchange in Chemical Kinetics", Frank-Kamenetskii recognized that "the purely conductive theory can be applied at sufficiently low pressure and small dimensions of the vessel when the influence of natural convection can be disregarded." This was reiterated by Tyler in 1966 and further emphasized by Barnard and Harwood in 1974. Specifically, they state: "It is generally assumed that heat losses are purely conductive. While this may be valid for certain low pressure slow combustion regimes, it is unlikely to be true for the cool flame and ignition regimes." While this statement is true for terrestrial experiments, the purely conductive heat transport assumption is valid at microgravity (mu-g). Specifically, buoyant complexities are suppressed at mu-g and the reaction-diffusion structure associated with low temperature oxidation reactions, cool flames and auto-ignitions can be studied. Without natural convection, the system is simpler, does not require determination of the effective heat transfer coefficient, and is a testbed for analytic and numerical models that assume pure diffusive transport. In addition, mu-g experiments will provide baseline data that will improve our understanding of the effects of natural convection on Earth.

Pearlman, Howard; Chapek, Richard; Neville, Donna; Sheredy, William; Wu, Ming-Shin; Tornabene, Robert

2001-01-01

353

SPRUCE experiment data infrastructure  

Science.gov (United States)

The Carbon Dioxide Information Analysis Center (CDIAC) at Oak Ridge National Laboratory (ORNL), USA has provided scientific data management support for the US Department of Energy and international climate change science since 1982. Among the many data activities CDIAC performs are design and implementation of the data systems. One current example is the data system and network for SPRUCE experiment. The SPRUCE experiment (http://mnspruce.ornl.gov) is the primary component of the Terrestrial Ecosystem Science Scientific Focus Area of ORNL's Climate Change Program, focused on terrestrial ecosystems and the mechanisms that underlie their responses to climatic change. The experimental work is to be conducted in a bog forest in northern Minnesota, 40 km north of Grand Rapids, in the USDA Forest Service Marcell Experimental Forest (MEF). The site is located at the southern margin of the boreal peatland forest. Experimental work in the 8.1-ha S1 bog will be a climate change manipulation focusing on the combined responses to multiple levels of warming at ambient or elevated CO2 (eCO2) levels. The experiment provides a platform for testing mechanisms controlling the vulnerability of organisms, biogeochemical processes and ecosystems to climatic change (e.g., thresholds for organism decline or mortality, limitations to regeneration, biogeochemical limitations to productivity, the cycling and release of CO2 and CH4 to the atmosphere). The manipulation will evaluate the response of the existing biological communities to a range of warming levels from ambient to +9°C, provided via large, modified open-top chambers. The ambient and +9°C warming treatments will also be conducted at eCO2 (in the range of 800 to 900 ppm). Both direct and indirect effects of these experimental perturbations will be analyzed to develop and refine models needed for full Earth system analyses. SPRUCE provides wide range continuous and discrete measurements. To successfully manage SPRUCE data flow and support climate change research, CDIAC has designed flexible data collection system using proven network technologies and taking advantage of existing software components. The SPRUCE data system comprised primarily of a set of network components, relational database, a web server to monitor data collection status, FTP server and replication/backup arrangement. Later the data interface on the existing website will be expanded to allow users to query the SPRUCE collection in a variety of ways and then subset, visualize and download the data. From the perspective of data stewardship, on the other hand, this system is designed for CDIAC to easily control database content, automate data movement, track data provenance, manage metadata content, and handle additions and corrections. In this presentation, we share our approaches to meet the challenges of designing and constructing data system for managing sources of high volume in situ observations in a remote location. It will demonstrate the dataflow starting from the sensors and ending at the archiving/distribution points, discuss types of hardware and software used, and examine considerations that were used to choose them.

Krassovski, M.; Hanson, P. J.; Boden, T.; Riggs, J.; Nettles, W. R.; Hook, L. A.

2013-12-01

354

The Nepal experience.  

Science.gov (United States)

Nepal's panchayat system of partyless democracy with 5 class organizations of peasants, youth, women, labor, and ex-servicemen, is an effort in community development. Panchayat training centers train panchayat secretaries and women workers. The government tried out the Mobile Training Scheme (MTS) methodology to train panchayat training center instructors in 1974-75 when 5 courses were given for 76 participants. The MTS methodology included several new assumptions: the necessity of knowing the field situation, a realistic problem solving orientation, learning by actual field experience, and interdependence rather than teacher dependence. The multipurpose role of the panchayat secretary was studied and clarified. Role performance led to the development of a realistic job description from which a task-focused curriculum could be developed. Field work tools included maintaining a daily diary, collecting information and developing a present and past project history, and compiling a village profile. The trainees played the roles of front line workers in the field when they returned from the villages played the roles of supervisors and trainers. The key concept in the multipurpose role of the panchayat secretary was collaboration. The panchayat secretary-trainee had to understand the social roles in the community, and work within the social context to get cooperation from other agencies, village and informal organizations, in order to fulfill their role. Tutorial and team teaching methods were used to provide partnership in learning; the old roles of lecturer and lectured were seen as ineffective when actual field experience was the criteria. The role performing and role analysis group analyzed the front line workers' roles and evolved job descriptions which led to course outlines. The teaching methods and materials group produced indigenous teaching materials for classroom use based on problems faced in the field. The action research and technical collaboration groups focused on the key concept of collaboration in the role of the panchayat secretary, collecting examples of situations significant for collaboration, and holding symposiums and panel discussions. Finally, the objectives of the training of the village panchayat secretary were spelled out: the values, attitudes, knowledge, and skills needed. PMID:12265563

Kaikobad, N F

1977-01-01

355

The PAMELA Space Experiment  

CERN Document Server

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

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

2009-01-01

356

PARATHYROID CARCINOMA: PERSONAL EXPERIENCE  

Directory of Open Access Journals (Sweden)

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

G. Favia

2008-04-01

357

Ultrafast gas switching experiments  

Energy Technology Data Exchange (ETDEWEB)

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 < 100 ps which can be used for ultrawideband radar systems, particle accelerators, laser drivers, bioelectromagnetic studies, electromagnetic effects testing, and for basic studies of gas breakdown physics. We have produced and accurately measured pulses with 50 to 100 ps risetimes to peak levels of 75 to 160 kV at pulse repetition frequencies (PRF) to 1 kHz. A unique gas switch was developed to hold off hundreds of kV with parasitic inductance less than 1 nH. An advanced diagnostic system using Fourier compensation was developed to measure single-shot risetimes below 35 ps. The complete apparatus is described and waveforms are presented. The measured data are compared with a theoretical model which predicts key features including dependence on gas species and technology to practical systems antennas and bounded wave developed a thyristor/pulse transformer based system using a highly overvolted cable switch. This pulser driving a Sandia-designed TEM cell, provides an ultra wideband impulse with < 200 ps risetime to the test object at a PRF > Khz at > 100 kV/m E field.

Frost, C.A.; Martin, T.H.; Patterson, P.E.; Rinehart, L.F.; Rohwein, G.J.; Roose, L.D.; Aurand, J.F.; Buttram, M.T.

1993-08-01

358

Ultrafast gas switching experiments  

Energy Technology Data Exchange (ETDEWEB)

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 < 100 ps which can be used for ultrawideband radar systems, particle accelerators, laser drivers, bioelectromagnetic studies, electromagnetic effects testing, and for basic studies of gas breakdown physics. We have produced and accurately measured pulses with 50 to 100 ps risetimes to peak levels of 75 to 160 kV at pulse repetition frequencies (PRF) to I kHz. A unique gas switch was developed to hold off hundreds of kV with parasitic inductance less than I nH. An advanced diagnostic system using Fourier compensation was developed to measure single-shot risetimes below 35 ps. The complete apparatus is described and wave forms are presented. The measured data are compared with a theoretical model which predicts key features including dependence on gas species and pressure. We have applied this technology to practical systems driving ultrawideband radiating antennas and bounded wave simulators. For example, we have developed a thyristor/pulse transformer based system using a highly overvolted cable switch. This pulser driving a Sandia- designed TEM cell, provides an ultra wideband impulse with < 200 ps risetime to the test object at a PRF > 1 kHz at > 100 kV/m E field.

Frost, C.A.; Martin, T.H.; Patterson, P.E.; Rinehart, L.F.; Rohwein, G.J.; Roose, L.D.; Aurand, J.F.; Buttram, M.T.

1996-11-01

359

Polarimetric imagery collection experiment  

Science.gov (United States)

The Spectral and Polarimetric Imagery Collection Experiment (SPICE) is a collaborative effort between the US Army ARDEC and ARL that is focused on the collection of mid-wave and long-wave infrared imagery using hyperspectral, polarimetric, and broadband sensors. The objective of the program is to collect a comprehensive database of the different modalities over the course of 1 to 2 years to capture sensor performance over a wide variety of weather conditions, diurnal, and seasonal changes inherent to Picatinny's northern New Jersey location. Using the Precision Armament Laboratory (PAL) tower at Picatinny Arsenal, the sensors will autonomously collect the desired data around the clock at different ranges where surrogate 2S3 Self-Propelled Howitzer targets are positioned at different viewing perspectives in an open field. The database will allow for: 1) Understanding of signature variability under adverse weather conditions; 2) Development of robust algorithms; 3) Development of new sensors; 4) Evaluation of polarimetric technology; and 5) Evaluation of fusing the different sensor modalities. In this paper, we will present the SPICE data collection objectives, the ongoing effort, the sensors that are currently deployed, and how this work will assist researches on the development and evaluation of sensors, algorithms, and fusion applications.

Romano, Joao M.; Felton, Melvin; Chenault, David; Sohr, Brian

2010-04-01

360

Spectral imagery collection experiment  

Science.gov (United States)

The Spectral and Polarimetric Imagery Collection Experiment (SPICE) is a collaborative effort between the US Army ARDEC and ARL for the collection of mid-wave and long-wave infrared imagery using hyperspectral, polarimetric, and broadband sensors. The objective of the program is to collect a comprehensive database of the different modalities over the course of 1 to 2 years to capture sensor performance over a wide variety of adverse weather conditions, diurnal, and seasonal changes inherent to Picatinny's northern New Jersey location. Using the Precision Armament Laboratory (PAL) tower at Picatinny Arsenal, the sensors will autonomously collect the desired data around the clock at different ranges where surrogate 2S3 Self-Propelled Howitzer targets are positioned at different viewing perspectives at 549 and 1280m from the sensor location. The collected database will allow for: 1) Understand of signature variability under the different weather conditions; 2) Development of robust algorithms; 3) Development of new sensors; 4) Evaluation of hyperspectral and polarimetric technologies; and 5) Evaluation of fusing the different sensor modalities. In this paper, we will present the SPICE data collection objectives, the ongoing effort, the sensors that are currently deployed, and how this work will assist researches on the development and evaluation of sensors, algorithms, and fusion applications.

Romano, Joao M.; Rosario, Dalton; Farley, Vincent; Sohr, Brian

2010-04-01

 
 
 
 
361

Experiments on quantum turbulence  

International Nuclear Information System (INIS)

Some properties of both steady state and time dependent quantum turbulence of counterflowing Helium II in a wide (1 cm) channel were investigated. In steady state the vortex line density for a given constant heat flux was measured as a function of the temperature by calibrating the attenuation of resonant second sound against the attenuation of the known amount of vortex lines in rotation. The results are compared with existing theory. Two kinds of time dependent studies were performed. In the first, a train of heat pulses applied at the heater showed that vorticity can be created by shock waves and is generated along the channel at the speed of second sound. In the second study, fluctuations of the vortex line density were induced by driving the heater with a DC power supply in series with a noise generator; the frequency spectrum of the vortex line density fluctuations was measured and its features compared with a set of predictions derived from Vinen's equations. Finally, the construction of a uniform vorticity counterlfow channel equipped with a specially designed heater with superconducting edges, suitable for transient experiments is described. Its development is discussed in the context of the history and the problems of previous channel designs

362

Progress in LHD experiment  

International Nuclear Information System (INIS)

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

363

TARC experiment at CERN  

International Nuclear Information System (INIS)

It is well-known that a significant part of the world electricity is of nuclear origin (75% in case of France). One of the major current preoccupation is the search for ways to solve the important problems raised by the wastes produced in the nuclear plants to which the wastes of military origin must by added. It is urgently necessary of finding solutions to reduce the amount of wastes produced in the nuclear facilities and plants and if possible to destroy the huge present stocks. To solve these problems a solution advanced by Nobel prize winner C. Rubbia and coll. is the utilisation of hybrid systems i.e the coupling of a particle acceleration to an under-critical reactor. The research of the hybrid system efficiency in transmuting the nuclear wastes, particularly, of the long-lived fission products is presently under way at CERN. The proton beam from the proton synchrotron is injected into a massive hyper-pure lead block. The TARC (Transmutation by Adiabatic Resonance Crossing) experiment is the second stage for the determination of the fundamental parameters associated to the Energy Amplifier Project. The main goal of TARC is to measure the spallation neutron flux and to determine the efficiency of the hybrid systems intended to incinerate the nuclear wastes. The different techniques used are described. The large amount of obtained data are now processed

364

Phishing: A Field Experiment  

Directory of Open Access Journals (Sweden)

Full Text Available Phishing is a method that hackers use to fraudulently acquire sensitive or private information from a victimby impersonating a real entity [1]. Phishing can be defined as the act of soliciting or stealing sensitiveinformation such as usernames, passwords, bank account numbers, credit card numbers, and socialsecurity or citizen ID numbers from individuals using the Internet [2]. Phishing often involves some kindof deception. The results from a study of Jagatic et al. (2007 indicate that Internet users are four timesmore likely to become phishing victims if they receive a request from someone appearing to be a knownfriend or colleague. The Anti-Phishing Work Group indicates that at least five percent of users respondedto phishing scams and about two million users gave away their information to spoofed websites [3]. Thisresults in direct losses of $1.2 billion for banks and credit card companies (Dhamija, 2006.In order to understand how phishing can be conducted, the researcher set up a phishing experiment inone of Thailand’s higher education institutions. The subjects were MBA students. A phishing email wassent to the subjects, and the message led the subject to visit the phishing website. One hundred seventystudents became victims. The data collection included a survey, an interview, and a focus group. Theresults indicated that phishing could be easily conducted, and the result can have a great impact on thesecurity of an organization. Organizations can use and apply the lessons learned from this study toformulate an effective security policy and security awareness training programs.

Danuvasin Charoen, Ph.D.

2011-05-01

365

National experience in dismantling  

International Nuclear Information System (INIS)

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

366

A moving experience !  

CERN Multimedia

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

2005-01-01

367

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

368

Subterranean stress engineering experiments  

International Nuclear Information System (INIS)

The state of stress in a subterranean rock mass has classically been assumed to be constant at best. In soil with a high clay content, preconsolidation and drainage methods can lead to more stable foundation material, but methods for engineering the stresses in large masses of rock are not well known. This paper shows the results from an experiment designed to alter the in situ rock stress field in an oil shale mine. This was done by hydrofracturing the rock by use of a packed-well injection system and then propping the crack open with a thixotropic gel, which slowly hardened to the consistency of cement. Successive hydrofracture and high-pressure grouting resulted in an overstressed region. Well-head injection pressures, surface tilts, injection rates, and subterranean strains were measured and recorded on floppy disk by a Z-80 microprocessor. The results were then transmitted to the large computer system at the Los Alamos Scientific Laboratory (LASL). To put the data in a more useful form, computer-generated movies of the tilts and strains were made by use of computer graphics developed at LASL. The purpose of this paper is to present results from the Single Large Instrumented Test conducted in the Colony Oil Shale Mine near Rifle, Colorado. 13 figures

369

Use experience of FLUKA  

Energy Technology Data Exchange (ETDEWEB)

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

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

1998-03-01

370

Mars aqueous chemistry experiment  

Science.gov (United States)

Mars Aqueous Chemistry Experiment (MACE) is designed to conduct a variety of measurements on regolith samples, encompassing mineral phase analyses, chemical interactions with H2O, and physical properties determinations. From these data, much can be learned or inferred regarding the past weathering environment, the contemporaneous soil micro-environments, and the general chemical and physical state of the Martian regolith. By analyzing both soil and duricrust samples, the nature of the latter may become more apparent. Sites may be characterized for comparative purposes and criteria could be set for selection of high priority materials on future sample return missions. The second year of the MACE project has shown significant progress in two major areas. MACE Instrument concept definition is a baseline design that has been generated for the complete MACE instrument, including definition of analysis modes, mass estimates and thermal model. The design includes multiple reagent reservoirs, 10 discrete analysis cells, sample manipulation capability, and thermal control. The MACE Measurement subsystems development progress is reported regarding measurement capabilities for aqueous ion sensing, evolved gas sensing, solution conductivity measurement, reagent addition (titration) capabilities, and optical sensing of suspended particles.

Clark, Benton C.; Mason, Larry W.

1994-01-01

371

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

372

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

373

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

374

Philosophy of Transdisciplinar? Experience  

Directory of Open Access Journals (Sweden)

Full Text Available Bioethics originated as a specific collective response of representatives of biomedical sciences, humanities and the public to the complexity of moral, anthropological and ontological problems (often in situations bordering on life and death caused by constant development of biomedical technologies. These problems escape simple, universal (eternal solutions. This makes them “finite”, multiple, dependent on the “here and now” circumstances of the choise of cognitive and communicative transdisciplinary strategies.The word “transdisciplinary” means interdisciplinary biomedical practices where in order to achieve common solutions and understand their common problem as a whole, it is necessary to transcend the area of expert authority and move into the area of “life-world”. From the philosophical point of view the idea of complexity can be interpreted as a network of relationships between the ideas of multiplicity and unity. The problem is to bring out through communication a unity of different kinds of unities presented in philosophy, theology, science, humanities and public discourses. To some extent transdisciplinarity is experience of paradoxes. They escape final resolution and give rise to ever new interpretations, have a permanent tendency to reemerge in ever new situation. They operate like “causa sue” of transdisciplinary communications in bioethics. 

Larisa Kijaš?enko

2011-04-01

375

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

376

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)

377

Project Feedback Experience  

International Nuclear Information System (INIS)

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)

378

SHEBA operating experience  

International Nuclear Information System (INIS)

The Solution High Energy Burst Assembly (SHEBA) is a critical assembly fueled with a solution of 5% enriched Uranyl Fluoride, U(5%)O2F2. The fuel is stored in critically safe storage containers and then pumped into the ''Critical Assembly Vessel'' where the solution becomes critical. The system was designed to achieve criticality in a cylindrically symmetric configuration. The SHEBA facility also incorporates a shielding pit into which the entire assembly can be lowered to provide shielding for elevated power runs. The major goals of the SHEBA assembly project are to study the behavior of nuclear excursions in a low-enrichment solution, to evaluate accidental criticality alarm detectors for fuel-processing facilities, to provide radiation spectra and dose measurements to benchmark calculations on a low-enrichment solution system, and to provide radiation fields to calibrate personnel dosimetry. SHEBA is also being used to provide a neutron flux test bed to benchmark calculations. Rather than providing the details of these particular projects, this paper summarizes the free-run operating experience obtained as a result of the projects

379

Condensed landscape experience  

DEFF Research Database (Denmark)

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

Earon, Ofri

380

Experience Music Project  

Science.gov (United States)

Inspired by a love of music (and a great respect and admiration for Jimi Hendrix), Microsoft co-founder Paul Allen set out to create the Experience Music Project (EMP) in Seattle. In an innovative and creative building design by noted architect Frank Gehry, Allen showcases some of the over 80,000 items related to the history of music over the past century. On the site, visitors will find a number of helpful resources, ranging from the types of ongoing and exhibits hosted at the EMP to an event calendar detailing the many performances and talks held at the facility. One of the site's most fun and engaging features is the online Music Interviews, which profile music critics, women in rock and roll, and hip-hop artists such as Force MDs and Doug E. Fresh. For up and coming guitar players, there is a section highlighting "Quick Tips" that will help individuals improve their sound and instrumental style. Overall, the site is a nice resource for those interested in learning about this rather interactive and hands-on museum.

 
 
 
 
381

American Experience: Emma Goldman  

Science.gov (United States)

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

382

Operating experience at CEBAF  

International Nuclear Information System (INIS)

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

383

Single-nucleon experiments  

Energy Technology Data Exchange (ETDEWEB)

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

Alexandre Deur

2009-12-01

384

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

385

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

386

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

387

Materials science experiments in space  

Science.gov (United States)

The criteria for the selection of the experimental areas and individual experiments were that the experiment or area must make a meaningful contribution to the field of material science and that the space environment was either an absolute requirement for the successful execution of the experiment or that the experiment can be more economically or more conveniently performed in space. A number of experimental areas and individual experiments were recommended for further consideration as space experiments. Areas not considered to be fruitful and others needing additional analysis in order to determine their suitability for conduct in space are also listed. Recommendations were made concerning the manner in which these materials science experiments are carried out and the related studies that should be pursued.

Gelles, S. H.; Giessen, B. C.; Glicksman, M. E.; Margrave, J. L.; Markovitz, H.; Nowick, A. S.; Verhoeven, J. D.; Witt, A. F.

1978-01-01

388

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)

389

The HERMES experiment  

Science.gov (United States)

A selection of data obtained by the HERMES experiment at DESY are presented, which provide new insight into the QCD structure of the nucleon. Using longitudinally polarized lepton beams and longitudinally polarized targets, the spin-dependent structure function g1(x) has been determined for 1H, 2H and 3He. By also observing one of the hadrons produced it has been possible to extract the helicity distributions of individual quark flavours in the nucleon as well. Further information on the spin structure of the nucleon has been obtained by investigating whether the gluons are also polarized in the nucleon. In addition, first results are presented of an entirely new approach to the study of the spin structure of the nucleon by measuring the asymmetry for deep inelastic scattering of a transversely polarized target. Such data give access to the transversity distribution, which probes the spin of the nucleon while switching off the gluon contribution. Moreover, the possible role of quark orbital momentum is addressed by studying (almost) exclusive reactions, which can be interpreted in terms of the recently re-introduced generalized parton distributions (GPDs). As an example of such data measurements of both the beam-spin and beam-charge asymmetries in deeply virtual Compton scattering (DVCS) are presented. By embedding the deep inelastic scattering process in the nuclear environment, additional information can be obtained on parton propagation effects in the nuclear medium. Such information is of importance in order to better understand the hadronization process in both cold and hot nuclei, the latter being needed for the interpretation of relativistic heavy ion collisions.

van der Steenhoven, G.

2005-07-01

390

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

391

LDEX: Lunar Dust EXperiment  

Science.gov (United States)

The lunar dust environment is expected to be dominated by submicron sized dust particles released from the Moon due to: a) the continuous bombardment by interplanetary dust, and b) due to plasma-induced, intense, small-scale electric fields. To a good approximation, the impact-produced ejecta are expected to form a spherically symmetric, continuously present cloud, while the electrically lofted population is expected to be concentrated over the terminators, and remain highly temporally and spatially variable. The Lunar Dust EXperiment (LDEX) instrument is proposed for the Lunar Atmosphere and Dust Environment Explorer (LADEE) mission for in-situ dust detection in orbit around the Moon. LDEX is based on the detection of ions generated in hypervelocity dust impacts. The instrument is capable of detecting submicron sized dust grains with impact speeds above about 1 km/s. Particles larger than about 0.2 microns can be detected individually, and the parameters of the impact signal yield the mass, velocity, and charge of the dust. Smaller dust grains, below the detection threshold for individual detection, are measured collectively as an average from a large number of impacts. With the extended detection size range, LDEX can verify the existence of the putative lunar dust-exosphere. LDEX has been recently developed at LASP, and it has a high degree of heritage based on similar instruments on the Ulysses and Galileo missions. An engineering prototype version of LDEX is scheduled for testing and calibration at the Heidelberg dust accelerator facility. The talk will briefly review the science goals and measurement requirements for in situ dust detection, as well as the capabilities of LDEX.

Horanyi, M.; Sternovsky, Z.; Gruen, E.; Srama, R.; Auer, S.; Munsat, T.; Robertson, S.; Wang, X.

2008-12-01

392

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

393

Overview of LHD experiments  

International Nuclear Information System (INIS)

During the first two years of the LHD experiment the following results have been achieved: (i) higher Te (Te(0)=4.4 keV at e>=5.3x1018 m-3 and Pabs=1.8 MW); (ii) higher confinement (?E=0.3 s, Te(0)=1.1 keV at e>=6.5x1019 m-3 and Pabs=2.0 MW); (iii) higher stored energy, Wpdia=880 kJ at B=2.75 T. High performance plasmas have been realized in the inward shifted magnetic axis configuration (R=3.6 m) where helical symmetry is recovered and the particle orbit properties are improved by a trade-off of MHD stability properties due to the appearance of a magnetic hill. Energy confinement was systematically higher than that predicted by the International Stellarator Scaling 95 by up to a factor of 1.6 and was comparable with the ELMy H mode confinement capability in tokamaks. This confinement improvement is attributed to configuration control (inward shift of the magnetic axis) and to the formation of a high edge temperature. The average beta value achieved reached 2.4% at B=1.3 T, the highest beta value ever obtained in a helical device, and so far no degradation of confinement by MHD phenomena has been observed. The inward shifted configuration has also led to successful ICRF minority ion heating. ICRF powers up to 1.3 MW were reliably injected into the plasma without significant impurity contamination, and a plasma with a stored energy of 200 kJ was sustained for 5 s by ICRF alone. As another important result, long pulse discharges of more than 1 min were successfully achieved separately with an NBI heating of 0.5 MW and with an ICRF heating of 0.85 MW. (author)

394

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

395

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) [1] 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 students' experiences (e.g., in physics vs. non-physics courses).

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

2013-01-01

396

Experience with the jet chamber of the JADE-experiment  

Science.gov (United States)

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.

Heuer, R.-D.

1984-02-01

397

Overview of LHD experiments  

International Nuclear Information System (INIS)

Experimental studies on the Large Helical Device during the last two years are reviewed. After the start of LHD experiment in 1998, the magnetic field has been gradually raised up to 2.89 T. The heating power has been increased, up to 4.2 MW for NBI, 1.3 MW for ICRF, and 0.9 MW for ECRH. Upgrading the key hardware systems has led to the extension of the plasma parameters to (i) higher Te [Te(0)=4.4 keV at =5.3x1018m-3 and Pabs=1.8MW], (ii) higher confinement [?E=0.3 s, Te(0)=1.1 keV at =6.5x1019m-3 and Pabs=2.0MW] and (iii) higher stored energy Wpdia=880kJ. High performance plasmas have been realized in the inward shifted magnetic axis configuration (R=3.6m) where the helical symmetry is recovered and the particle orbit properties are improved by trade off of MHD stability properties due to the appearance of the magnetic hill. The energy confinement was systematically higher than that predicted by the International Stellerator Scaling 95 up to a factor of 1.6 and was comparable with ELMy H-mode confinement capability in tokamaks. This confinement improvement is attributed to the configuration control (the inward shift of magnetic axis) and to the formation of the high edge temperature. The achieved average beta value reached 2.4% at B=1.3 T, the highest beta value ever obtained in helical devices, and so far no degradation of confinement by MHD phenomenon is observed. The inward shifted configuration has also led to successful ICRF minority ion heating. ICRF power up to 1.3 MW was reliably injected into the plasma without significant impurity contamination and a plasma with a stored energy of 200 kJ was sustained for 5 sec by ICRF alone. As another important result long pulse discharges of more than 1 minute were successfully achieved separately with NBI heating of 0.5 MW and with ICRF heating of 0.85 MW. (author)

398

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)

399

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

400

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

 
 
 
 
401

Evaluation of the DHCE Experiment  

Energy Technology Data Exchange (ETDEWEB)

The Dynamic Helium Charging Experiment (DHCE) experiment was conducted in the Fast Flux Test Facility (FFTF) during cycle 12, which was completed in 1992. The purpose of the experiment was to enhance helium generation in vanadium alloys to simulate fusion reactor helium-to-dpa ratios with a target goal of 4-5 appm He/dpa. The Fusion Materials Science Program is considering mounting another experiment in hopes of gathering additional data on the effect of helium on the mechanical and physical properties of vanadium structural materials. Pacific Northwest National Laboratory was assigned the task of evaluating the feasibility of conducting another DHCE experiment by carefully evaluating the results obtained of the first DHCE experiment. This report summarizes the results of our evaluation and presents recommendations for consideration by the Materials Science Coordinators Organization.

Greenwood, Lawrence R.; Baldwin, David L.; Hollenberg, Glenn W.; Kurtz, Richard J.

2002-03-31

402

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

403

Data analysis for electronic experiments  

International Nuclear Information System (INIS)

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

404

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

405

Science Sampler: The experiment event  

Science.gov (United States)

The annual Experiment Event is the culminating activity of an extensive study of questioning, problem solving, and the inquiry process. Easily addressing national and state standards for science inquiry, the Experiment Event is only part--perhaps the best part--of a unit of cooperative work. Assignment requirements are to plan, conduct, conclude, and present a demonstration of a scientific concept or an experiment using human subjects. The requirements and a timeline of the planning stages of the project are outlined here.

White, Polly

2007-04-01

406

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)

407

Results from Neutrino Oscillations Experiments  

International Nuclear Information System (INIS)

The interpretation of the results of early solar and atmospheric neutrino experiments in terms of neutrino oscillations has been verified by several recent experiments using both, natural and man-made sources. The observations provide compelling evidence in favor of the existence of neutrino masses and mixings. These proceedings give a general description of the results from neutrino oscillation experiments, the current status of the field, and some possible future developments.

408

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

409

View of the LHCb experiment  

CERN Multimedia

Unlike the other large barrel-like experiments at the LHC, the LHCb detector consists of a series of large wall-like sub-detectors. The proton beams will collide at one end of the experiment hall and the detector will observe particles produced which travel close to the axis of the beam. This experiment will observe the production and subsequent decay of bottom quarks to look for rare 'CP violating' processes.

Claudia Marcelloni

2006-01-01

410

Solar Neutrino Experiments An Overview  

CERN Document Server

This article describes the seven experiments Homestake, Kamiokande, SAGE, GALLEX, Super-Kamiokande, GNO and SNO which have so far provided data on the measurement of the solar neutrino fluxes. The detection mechanism, the salient features of the detectors and the results of each experiment are presented. How the solar neutrino problem has evolved and became more focused with each experimental data is summarized. The goals for the future experiments are outlined.

Goswami, S

2003-01-01

411

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

412

OSMOSE experiment representativity studies  

International Nuclear Information System (INIS)

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 underhermal 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

413

Evaluation of Saxton critical experiments  

Energy Technology Data Exchange (ETDEWEB)

As a part of International Criticality Safety Benchmark Evaluation Project (ICSBEP), SAXTON critical experiments were reevaluated. The effects of k{sub eff} of the uncertainties in experiment parameters, fuel rod characterization, soluble boron, critical water level, core structure, {sup 241}Am and {sup 241}Pu isotope number densities, random pitch error, duplicated experiment, axial fuel position, model simplification, etc., were evaluated and added in benchmark-model k{sub eff}. In addition to detailed model, the simplified model for Saxton critical experiments was constructed by omitting the top, middle, and bottom grids and ignoring the fuel above water. 6 refs., 1 fig., 3 tabs. (Author)

Joo, Hyung Kook; Noh, Jae Man; Jung, Hyung Guk; Kim, Young Il; Kim, Young Jin [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

1997-12-31

414

Evaluation of saxton critical experiments  

International Nuclear Information System (INIS)

As a part of International Criticality Safety Benchmark Evaluation Project (ICSBEP), SAXTON critical experiments were reevaluated. The effects on keff of the uncertainties in experiment parameters, fuel rod characterization, soluble boron, critical water level, core structure, 241Am and 241Pu isotope number densities, random pitch error, duplicated experiment, axial fuel position, model simplification, etc., were evaluated and added in benchmark-model keff. In addition to detailed model, the simplified model for Saxton critical experiments was constructed by omitting the top, middle, and bottom grids and ignoring the fuel above water

415

Experiments at CERN in 1979  

International Nuclear Information System (INIS)

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

416

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.)

417

Microgravity Materials and Biotechnology Experiments  

Science.gov (United States)

Presentation will deal with an overview of the Materials Science and Biotechnology/Crystal Growth flight experiments and their requirements for a successful execution. It will also deal with the hardware necessary to perform these experiments as well as the hardware requirements. This information will serve as a basis for the Abstract: workshop participants to review the poss7ibilifies for a low cost unmanned carrier and the simple automation to carry-out experiments in a microgravity environment with little intervention from the ground. The discussion will include what we have now and what will be needed to automate totally the hardware and experiment protocol at relatively low cost.

Vlasse, Marcus

1998-01-01

418

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

419

Short Baseline Neutrino Oscillation Experiments  

CERN Document Server

Series of short baseline neutrino oscillation experiments provided unexpected results, and now they are called short baseline anomalies, and all indicates an existence of sterile neutrinos with a mass scale around 1~eV. The signals of short baseline anomalies are reported from 4 different classes of experiments. However, at this moment, there is no convincing theoretical model to explain such sterile neutrinos, and a single experiment to confirm 1~eV sterile neutrinos may be challenging. In this short note, we describe classes of short baseline neutrino oscillation experiments and their goals.

Katori, Teppei

2014-01-01

420

From satellite experiments to operational applications Canadian experiences and plans  

Science.gov (United States)

The paper outlines the public service experiments conducted in Canada with the Hermes and Anik-B satellites. It examines factors which will facilitate the transition from experiments to operational applications, including policy and institutional factors, the role of government, the carriers and the users.

Casey-Stahmer, Anna

 
 
 
 
421

THETIS 80% blocked cluster experiment. Part 4. Gravity reflood experiments  

Energy Technology Data Exchange (ETDEWEB)

A series of thermal-hydraulic experiments has been performed on a model PWR fuel assembly, containing a severe partial blockage, in the THETIS Rig at AEE Winfrith. The assembly comprised 49 full-lenth, electrically-heated fuel rod simulators and the blockage was created by attaching thin-walled, preformed swellings to a group of 16 rods. The blockage occupied a complete grid interval and reduced the subchannel flow area by a maximum of 80% over a length of 200 mm. Four types of experiments were performed and one of these, the gravity reflood experiments is the subject of this report. Gravity reflood was achieved using a tubular downcomer and a simple orifice through which the steam leaving the test section passed. The experiments covered a wide range of pressures, inlet flow rates, inlet temperatures and orific diameters. Experiments were performed with the downcomer initially either full or empty. 13 refs., 61 figs.

Pearson, K.G.; Cooper, C.A.; Jowitt, D.

1984-09-01

422

Experience and the Developing Brain.  

Science.gov (United States)

Recent research findings show that experiences alter the anatomical structure of the brain, that the effects of experience on the brain differ at different ages and between males and females, and that brain development is not complete until about age 18. (SV)

Kolb, Bryan

2000-01-01

423

New experiments in gravitational physics  

Directory of Open Access Journals (Sweden)

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

Karim Munawar

2014-06-01

424

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

425

High School Physics Teaching Experience  

Science.gov (United States)

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

Physics Teacher, 2012

2012-01-01

426

Rachel's Story: A Transpersonal Experience.  

Science.gov (United States)

This article presents a case study in which a client's transpersonal/religious/spiritual experience facilitated the achievement of her counseling goal. Through the paranormal experience, she resolved several of her conflicts, including a new appreciation of the church from which she had become estranged. (Author)

Holden, Janice Miner

2000-01-01

427

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

428

Experience economy brimming with potential  

DEFF Research Database (Denmark)

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

SØrensen, Flemming; Sundbo, Jon

429

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

430

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

431

Tee/Critical Flow Experiments  

International Nuclear Information System (INIS)

This paper provides an overview of the Tee/Critical Flow Experiments that were conducted during the summer of 1984 in the Two-Phase Flow Loop (TPFL). The purpose of the tee/critical flow experiments was to investigate the liquid entrainment/vapor pull-through phenomena of a stratified high-pressure steam-water flow through a tee

432

Experimenting with Brass Musical Instruments.  

Science.gov (United States)

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

LoPresto, Michael C.

2003-01-01

433

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

434

Non-tokamak experiments. Summary  

International Nuclear Information System (INIS)

This is a summary report concerning circular (helical systems, RFPs, FRCs, CTs, dipoles, spheromaks) and non-circular (mirrors, foci, traps) non-tokamak fusion experiments. The major experiments are listed and their main parameters and points of interest are given

435

Axion experiment makes its debut  

CERN Multimedia

An experiment built from components recycled from other experiments has put new limits on the properties of particles that might be the "dark matter" that makes up about 25% of the universe. The CERN Axion Solar telescope (CAST) was built to search for exotic particles called axions that might be produced inside the sun (1 page)

Dumé, Belle

2004-01-01

436

Space Station Planetology Experiments (SSPEX)  

Science.gov (United States)

A meeting of 50 planetary scientists considered the uses of the Space Station to support experiments in their various disciplines. Abstracts (28) present concepts for impact and aeolian processes, particle formation and interaction, and other planetary science experiments. Summaries of the rationale, hardware concepts, accomodations, and recommendations are included.

Greeley, R. (editor); Williams, R. J. (editor)

1986-01-01

437

Space Station Planetology Experiments (SSPEX)  

International Nuclear Information System (INIS)

A meeting of 50 planetary scientists considered the uses of the Space Station to support experiments in their various disciplines. Abstracts (28) present concepts for impact and aeolian processes, particle formation and interaction, and other planetary science experiments. Summaries of the rationale, hardware concepts, accomodations, and recommendations are included

438

Space Station Planetology Experiments (SSPEX)  

Energy Technology Data Exchange (ETDEWEB)

A meeting of 50 planetary scientists considered the uses of the Space Station to support experiments in their various disciplines. Abstracts (28) present concepts for impact and aeolian processes, particle formation and interaction, and other planetary science experiments. Summaries of the rationale, hardware concepts, accomodations, and recommendations are included.

Greeley, R.; Williams, R.J.

1986-05-01

439

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

440

Comparison of integrated numerical experiments with accelerator and FEL experiments  

Energy Technology Data Exchange (ETDEWEB)

Even at the conceptual level the strong coupling between the laser subsystem elements, such as the accelerator, wiggler, optics, and control, greatly complicates the understanding and design of an FEL. Given the requirements for a high-performance FEL, the coupling between the laser subsystems must be included in the design approach. To address the subsystem coupling the concept of an integrated numerical experiment (INEX) has been implemented. Unique features of the INEX approach are consistency and numerical equivalence of experimental diagnostic. The equivalent numerical diagnostics mitigates the major problem of misinterpretation that often occurs when theoretical and experimental data are compared. A complete INEX model has been applied to the 10{mu}m high-extraction-efficiency experiment at Los Alamos and the 0.6-{mu}m Burst Mode experiment at Boeing Aerospace. In addition, various subsets of the INEX model have been compared with a number of other experiments. Overall, the agreement between INEX and the experiments is very good. With the INEX approach, it now appears possible to design high-performance FELS for numerous applications. The first full-scale test of the INEX approach is the Los Alamos HIBAF experiment. The INEX concept, implementation, and validation with experiments are discussed. 28 refs., 13 figs., 1 tab.

Thode, L.E.; Carlsten, B.E.; Chan, K.C.D.; Cooper, R.K.; Elliott, J.C.; Gitomer, S.J.; Goldstein, J.C.; Jones, M.E.; McVey, B.D.; Schmitt, M.J.; Takeda, H.; Tokar, R.L.; Wang, T.S.; Young, L.M.

1991-01-01

 
 
 
 
441

An experiment in software reliability  

Science.gov (United States)

The results of a software reliability experiment conducted in a controlled laboratory setting are reported. The experiment was undertaken to gather data on software failures and is one in a series of experiments being pursued by the Fault Tolerant Systems Branch of NASA Langley Research Center to find a means of credibly performing reliability evaluations of flight control software. The experiment tests a small sample of implementations of radar tracking software having ultra-reliability requirements and uses n-version programming for error detection, and repetitive run modeling for failure and fault rate estimation. The experiment results agree with those of Nagel and Skrivan in that the program error rates suggest an approximate log-linear pattern and the individual faults occurred with significantly different error rates. Additional analysis of the experimental data raises new questions concerning the phenomenon of interacting faults. This phenomenon may provide one explanation for software reliability decay.

Dunham, J. R.; Pierce, J. L.

1986-01-01

442

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.

T2K Collaboration; 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.

2011-12-01

443

Status of neutrino mass experiments  

International Nuclear Information System (INIS)

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

444

THETIS 80% blocked cluster experiment. Part 3. Forced reflood experiments  

Energy Technology Data Exchange (ETDEWEB)

A series of thermal-hydraulic experiments has been performed on a model PWR fuel assembly, containing a severe partial blockage, in the THETIS Rig at AEE Winfrith. The assembly comprised 49 full-length, electrically-heated fuel rod simulators and the blockage was created by attaching thin-walled, preformed swellings to a group of 16 rods. The blockage occupied a complete grid interval and reduced the subchannel flow area by a maximum of 80% over a length of 200 mm. Four types of experiments were performed and one of these, the forced reflood experiments is the subject of this report. The experiments covered a wide range of pressures, reflood rates, inlet water temperatures, cluster powers and initial cluster temperatures.

Cooper, C.A.; Pearson, K.G.; Jowitt, D.

1984-09-01

445

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

446

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 ofthe individual customer. It represents a strategy that results in a win–win valuemexchange 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

2009-12-01

447

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

448

Casimir experiments showing saturation effects  

International Nuclear Information System (INIS)

We address several different Casimir experiments where theory and experiment disagree. First out is the classical Casimir force measurement between two metal half spaces; here both in the form of the torsion pendulum experiment by Lamoreaux and in the form of the Casimir pressure measurement between a gold sphere and a gold plate as performed by Decca et al.; theory predicts a large negative thermal correction, absent in the high precision experiments. The third experiment is the measurement of the Casimir force between a metal plate and a laser irradiated semiconductor membrane as performed by Chen et al.; the change in force with laser intensity is larger than predicted by theory. The fourth experiment is the measurement of the Casimir force between an atom and a wall in the form of the measurement by Obrecht et al. of the change in oscillation frequency of a 87Rb Bose-Einstein condensate trapped to a fused silica wall; the change is smaller than predicted by theory. We show that saturation effects can explain the discrepancies between theory and experiment observed in all these cases.

449

Plasma physics experiments at GSI  

International Nuclear Information System (INIS)

Experiments using high-energy/high-power lasers have being pursued for almost a decade at GSI. In the regime of ultra-intense lasers, the PHELIX (Petawatt High-Energy Laser for heavy-Ion experiments) system has reached the 20 TW level and first successful experiments have been done. In addition to the experiments on heavy-ion energy loss in laser produced plasmas, our research will focus on laser-assisted particle acceleration and the use of high-energy petawatt lasers (HEPW) for the diagnostics of dense plasmas which has raised great interest in the international community. The plasma physics group at GSI, based on experiments in France, the UK and the U.S., has contributed significantly to this field of research in recent years. Now, with the upcoming commissioning of different power levels of PHELIX our experimental activities can be performed at GSI. Due to the funding of a virtual institute by the Helmholtz Association, the opportunities for new experiments at GSI have grown significantly. The paper will give an overview of recent experimental results, show the link to the future GSI experimental program (including FAIR) and present the experiments that will be done at GSI for the years to come

450

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)

451

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

452

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

453

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

454

Progress at the WITCH experiment  

CERN Document Server

The WITCH-experiment will measure the energy spectrum of the recoiling daughter ions in beta decay to search for non-standard scalar and tensor type interaction. To facilitate this a Penning trap is used to store the radioactive ions. Thus the recoil ions can leave the source without any energy loss and their energy can be probed by the subsequent retardation spectrometer. The experiment is being set up at present at ISOLDE/CERN. The principle and the status of the WITCH-experiment will be presented. (12 refs).

Beck, M; Delauré, B J; Golovko, V V; Kozlov, V Yu; Kraev, I S; Lindroth, A; Phalet, T; Severijns, N; Versyck, S; Beck, D; Quint, W; Ames, F; Delahaye, P; Guenaut, C

2003-01-01

455

Progress at the WITCH Experiment  

International Nuclear Information System (INIS)

The WITCH-experiment will measure the energy spectrum of the recoiling daughter ions in beta decay to search for non-standard scalar and tensor type interaction. To facilitate this a Penning trap is used to store the radioactive ions. Thus the recoil ions can leave the source without any energy loss and their energy can be probed by the subsequent retardation spectrometer. The experiment is being set up at present at ISOLDE/CERN. The principle and the status of the WITCH-experiment will be presented

456

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.

457

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

458

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

459

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

460

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.