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Sample records for analogue project physical

  1. The Palmottu analogue project

    International Nuclear Information System (INIS)

    The report gives a summary of the results of investigations carried out in 1992 at the Palmottu natural analogue study site, which is a small U-Th mineralization in Nummi-Pusula, southwestern Finland. Additionally, the report includes several separate articles dealing with various aspects of the Palmottu Analogue Project: (1) deep groundwater flow, (2) interpretation of hydraulic connections, (3) characterization of groundwater colloids, (4) uranium mineral-groundwater equilibrium, (5) water-rock interaction and (6) modelling of in situ matrix diffusion. The Palmottu Analogue Project aims at a more profound understanding of radionuclide transport processes in fractured crystalline bedrock. The essential factors controlling transport are groundwater flow and interaction between water and rock. Accordingly, the study includes (1) structural interpretations partly based on geophysical measurements, (2) hydrological studies including hydraulic drill-hole measurements, (3) flow modelling, (4) hydrogeochemical characterization of groundwater, uranium chemistry and colloid chemistry, (5) mineralogical studies, (6) geochemical interpretation and modelling, (7) studies of radionuclide mobilization and retardation including matrix diffusion, and (8) modelling of uranium series data. Palaeohydrogeological aspects, due to the anticipated future glaciation of the Fennoscandian Shield, are of special interest. Quaternary sediments are studied to gain information on post-glacial migration in the overburden. (orig.)

  2. Alligator Rivers analogue project

    International Nuclear Information System (INIS)

    Australian Nuclear Science and Technology Organization has extensively evaluated uranium ore bodies in the Alligator Rivers Uranium Province in Australia as analogues of radioactive waste repositories. The work was extended for a three-year program as an international project based on the Koongarra uranium deposit and sponsored by the OECD Nuclear Energy Agency. The technical program comprises six major sub-projects involving modelling and experimental work: modelling of radionuclide migration; hydrogeology of the Koongarra uranium deposit; uranium/thorium series disequilibria studies; groundwater and colloid studies; fission product studies; transuranic nuclide studies; an outline of the technical programs and a summary of progress in the technical sub-projects is given. This is followed by a series of technical reports which briefly describe current research tasks, and which have been separately indexed

  3. Alligator Rivers analogue project

    International Nuclear Information System (INIS)

    Uranium ore deposits, such as Koongarra in the Northern Territory of Australia, with their inventory of radionuclides provide researchers with excellent systems with which to study radionuclide migration over very long timescale. The current project, which is sponsored by the OECD Nuclear Energy Agency, is funded by the Australian Nuclear Science and Technology Organization (ANSTO), the Japan Atomic Energy Research Institute, the Power Reactor and Nuclear Fuel Development Corporation of Japan, the Swedish Nuclear Fuel Inspectorate, the UKDOE and the USNRC. The project has been recently extended until 31 august 1992. ANSTO is the managing participant. Experimental and modelling tasks of the project consider the original weatering of the Koongarra region, the alteration of the host rock and primary uranium ore, groundwater flow and migration pathways, rock/groundwater interactions, radionuclide transport and the formation and continued development of the secondary mineralization. The overall objective is to produce a reliable and realistic model for the radionuclide migration within geological environments relevant to the assessment of the safety of radioactive waste repositories. An outline of technical programs is given followed by a series of technical reports which briefly describe current research tasks. These reports have been separately indexed

  4. International video project on natural analogues

    International Nuclear Information System (INIS)

    A natural analogue can be defined as a natural process which has occurred in the past and is studied in order to test predictions about the future evolution of similar processes. In recent years, natural analogues have been used increasingly to test the mathematical models required for repository performance assessment. Analogues are, however, also of considerable use in public relations as they allow many of the principles involved in demonstrating repository safety to be illustrated in a clear manner using natural systems with which man is familiar. The international Natural Analogue Working Group (NAWG), organised under the auspices of the CEC, has recognised that such PR applications are of considerable importance and should be supported from a technical level. At the NAWG meeting in Pitlochry, Scotland (June 1990), it was recommended that the possibilities for making a video film on this topic be investigated and Nagra was requested to take the lead role in setting up such a project

  5. The Valles natural analogue project

    Energy Technology Data Exchange (ETDEWEB)

    Stockman, H.; Krumhansl, J.; Ho, C. [Sandia National Labs., Albuquerque, NM (United States); McConnell, V. [Alaska Univ., Fairbanks, AK (United States). Geophysical Inst.

    1994-12-01

    The contact between an obsidian flow and a steep-walled tuff canyon was examined as an analogue for a highlevel waste repository. The analogue site is located in the Valles Caldera in New Mexico, where a massive obsidian flow filled a paleocanyon in the Battleship Rock tuff. The obsidian flow provided a heat source, analogous to waste panels or an igneous intrusion in a repository, and caused evaporation and migration of water. The tuff and obsidian samples were analyzed for major and trace elements and mineralogy by INAA, XRF, X-ray diffraction; and scanning electron microscopy and electron microprobe. Samples were also analyzed for D/H and {sup 39}Ar/{sup 4O} isotopic composition. Overall,the effects of the heating event seem to have been slight and limited to the tuff nearest the contact. There is some evidence of devitrification and migration of volatiles in the tuff within 10 meters of the contact, but variations in major and trace element chemistry are small and difficult to distinguish from the natural (pre-heating) variability of the rocks.

  6. The Valles natural analogue project

    International Nuclear Information System (INIS)

    The contact between an obsidian flow and a steep-walled tuff canyon was examined as an analogue for a highlevel waste repository. The analogue site is located in the Valles Caldera in New Mexico, where a massive obsidian flow filled a paleocanyon in the Battleship Rock tuff. The obsidian flow provided a heat source, analogous to waste panels or an igneous intrusion in a repository, and caused evaporation and migration of water. The tuff and obsidian samples were analyzed for major and trace elements and mineralogy by INAA, XRF, X-ray diffraction; and scanning electron microscopy and electron microprobe. Samples were also analyzed for D/H and 39Ar/4O isotopic composition. Overall,the effects of the heating event seem to have been slight and limited to the tuff nearest the contact. There is some evidence of devitrification and migration of volatiles in the tuff within 10 meters of the contact, but variations in major and trace element chemistry are small and difficult to distinguish from the natural (pre-heating) variability of the rocks

  7. The Greenland analogue project. Yearly report 2010

    International Nuclear Information System (INIS)

    A four-year field and modelling study of the Greenland ice sheet and subsurface conditions, Greenland Analogue Project (GAP), has been initiated collaboratively by SKB, Posiva and NWMO to advance the understanding of processes associated with glaciation and their impact on the long-term performance of a deep geological repository. The study site encompasses a land terminus portion of the Greenland ice sheet, east of Kangerlussuaq, and is in many ways considered to be an appropriate analogue of the conditions that are expected to prevail in much of Canada and Fennoscandia during future glacial cycles. The project begins in 2009 and is scheduled for completion in 2012. Our current understanding of the hydrological, hydrogeological and hydrogeochemical processes associated with cold climate conditions and glacial cycles, and their impact on the long-term performance of deep geological repositories for spent nuclear fuel, will be significantly improved by studying a modern analogue. The GAP will conduct the first in situ investigations of some of the parameters and processes needed to achieve a better understanding of how an ice sheet may impact a deep repository, and will provide measurements, observations and data that may significantly improve our safety assessments and risk analyses of glaciation scenarios. This report was produced by the GAP team members and presents an overview of the activities within the GAP during the interval January 1 to December 31, 2010, as well as research results obtained during this time frame. Research for the GAP is ongoing, and additional results related to the data presented here may become available in the future and will be presented in subsequent annual reports. (orig.)

  8. The Greenland analogue project. Yearly report 2010

    Energy Technology Data Exchange (ETDEWEB)

    Harper, J.; Brinkerhoff, D.; Johnson, J. [University of Montana, Missoula (United States); Ruskeeniemi, T.; Engstroem, J.; Kukkonen, I. [Geological Survey of Finland (Finland)] [and others

    2012-04-15

    A four-year field and modelling study of the Greenland ice sheet and subsurface conditions, Greenland Analogue Project (GAP), has been initiated collaboratively by SKB, Posiva and NWMO to advance the understanding of processes associated with glaciation and their impact on the long-term performance of a deep geological repository. The study site encompasses a land terminus portion of the Greenland ice sheet, east of Kangerlussuaq, and is in many ways considered to be an appropriate analogue of the conditions that are expected to prevail in much of Canada and Fennoscandia during future glacial cycles. The project begins in 2009 and is scheduled for completion in 2012. Our current understanding of the hydrological, hydrogeological and hydrogeochemical processes associated with cold climate conditions and glacial cycles, and their impact on the long-term performance of deep geological repositories for spent nuclear fuel, will be significantly improved by studying a modern analogue. The GAP will conduct the first in situ investigations of some of the parameters and processes needed to achieve a better understanding of how an ice sheet may impact a deep repository, and will provide measurements, observations and data that may significantly improve our safety assessments and risk analyses of glaciation scenarios. This report was produced by the GAP team members and presents an overview of the activities within the GAP during the interval January 1 to December 31, 2010, as well as research results obtained during this time frame. Research for the GAP is ongoing, and additional results related to the data presented here may become available in the future and will be presented in subsequent annual reports. (orig.)

  9. The Greenland Analogue Project. Yearly Report 2009

    International Nuclear Information System (INIS)

    A deep geological repository for spent nuclear fuel needs to be designed to keep used nuclear fuel isolated from mankind and the environment for a million years. Within this time frame glacial conditions are expected in regions that have been glaciated in the past two to ten million years. Climate induced changes such as the growth of ice sheets and permafrost will influence and alter the ground surface and subsurface environment, including its hydrology, which may impact repository safety. Glaciation impact assessments have to-date used over-simplified models and conservative assumptions, for example in the representation of ice sheet hydrology, that do not reflect the complexity of natural systems and processes. This is largely due to lack of direct observations of such processes from existing ice sheets, which if more readily available could help reduce uncertainties and provide a strong scientific basis for the treatment of glacial impacts in safety assessments. Our current understanding of the hydrological, hydrogeological and hydrogeochemical processes associated with glacial cycles and their impact on the long-term performance of deep geological repositories for spent nuclear fuel will be significantly improved by studying a modern analogue. To advance the understanding of processes associated with glaciation and their impact on the long-term performance of a deep geological repository, the Greenland Analogue Project (GAP), a four-year field and modelling study of the Greenland ice sheet and sub-surface conditions, has been initiated collaboratively by SKB, Posiva and NWMO. The study site encompasses a land terminus portion of the Greenland ice sheet east of Kangerlussuaq and is in many ways considered to be an appropriate analogue of the conditions that are expected to prevail in much of Canada and Fennoscandia during future glacial cycles. The project is planned to run from 2009 until 2012. The GAP will conduct the first in situ investigations of some of

  10. The Greenland Analogue Project. Yearly Report 2009

    Energy Technology Data Exchange (ETDEWEB)

    2010-12-15

    A deep geological repository for spent nuclear fuel needs to be designed to keep used nuclear fuel isolated from mankind and the environment for a million years. Within this time frame glacial conditions are expected in regions that have been glaciated in the past two to ten million years. Climate induced changes such as the growth of ice sheets and permafrost will influence and alter the ground surface and subsurface environment, including its hydrology, which may impact repository safety. Glaciation impact assessments have to-date used over-simplified models and conservative assumptions, for example in the representation of ice sheet hydrology, that do not reflect the complexity of natural systems and processes. This is largely due to lack of direct observations of such processes from existing ice sheets, which if more readily available could help reduce uncertainties and provide a strong scientific basis for the treatment of glacial impacts in safety assessments. Our current understanding of the hydrological, hydrogeological and hydrogeochemical processes associated with glacial cycles and their impact on the long-term performance of deep geological repositories for spent nuclear fuel will be significantly improved by studying a modern analogue. To advance the understanding of processes associated with glaciation and their impact on the long-term performance of a deep geological repository, the Greenland Analogue Project (GAP), a four-year field and modelling study of the Greenland ice sheet and sub-surface conditions, has been initiated collaboratively by SKB, Posiva and NWMO. The study site encompasses a land terminus portion of the Greenland ice sheet east of Kangerlussuaq and is in many ways considered to be an appropriate analogue of the conditions that are expected to prevail in much of Canada and Fennoscandia during future glacial cycles. The project is planned to run from 2009 until 2012. The GAP will conduct the first in situ investigations of some of

  11. Progress in the Alligator Rivers analogue project

    International Nuclear Information System (INIS)

    The OECD Nuclear Energy Agency (NEA) Steering Committee agreed on 1 October 1987 to sponsor the International Alligator Rivers Analogue Project (ARAP) for a three year program with a formal starting date of 1 September 1987. The participants are six organisations from five NEA Member States with ANSTO as the managing participant. A detailed tehnical program was agreed by a Joint Technical Committee and this comprises six main technical sub-projects: modelling of radionuclide migration, hydrogeology at Koongarra, uranium/thorium series disequilibria studies, colloid and groundwater studies, fission product studies and transuranic nuclide studies. A modelling workshop for participants and contractors was held in Sydney in February 1988 and a field visit was undertaken in May 1988. Laboratory studies on samples obtained in previous field visits were carried out from September 1987. Data from the project are being provided for participants as case 8 in the INTRAVAL model validation project coordinated by the Swedish Nuclear Power Inspectorate. A Joint Technical Committee meeting to approve the technical program and budjet for the second year will be held in Sydney in July 1988

  12. Alligator Rivers Analogue project. Groundwater Chemistry

    International Nuclear Information System (INIS)

    The objective of this volume is to provide an account of the groundwater sampling and analysis program undertaken at Koongarra, as part of the Alligator Rivers Analogue Project. Chemical parameters were investigated in groundwaters at various locations and depths in the vicinity of the Koongarra orebody. Measurements of the pH, redox state, conductivity, and bicarbonate alkalinity provided a starting point for interpreting water chemistry. Groundwater samples were obtained using submersible pumps, or, in a few cases, bailers. The concentrations of major cations and anions, such as magnesium and phosphate, were determined using a variety of standard techniques. Numerous elements were routinely analysed using quantitative or semi-quantitative ICPMS. Uranium series radionuclides and environmental isotopes were measured using radiochemical techniques and mass spectrometry. The distributions of isotopes such as deuterium, tritium, 210Pb, 13C and 14C enabled groundwater mixing and flow-paths to be studied. The occurrence and distributions of major species at Koongarra are presented in this volume, using both cross-sections and contour plans. Chemical and isotopic data for groundwater analyses carried out during the project are included in the Appendices. 47 refs., 16 tabs., 58 figs

  13. Alligator Rivers Analogue Project an OECD/NEA international project

    International Nuclear Information System (INIS)

    The Koongarra uranium deposit in the Alligator Rivers Region of the Northern Territory of Australia was studied as natural analogue of the far field behaviour of high level waste repository following groundwater ingress. A number of mathematical modelling approaches were developed for processes as divers as groundwater transport, host rock weathering, radionuclide sorption, evolution of the uranium dispersion fan and the distribution of uranium series nuclides between mineral assemblages in weathered host rock. Some of these models are relevant to performance assessment at the level of individual processes and subsystem performance. Through the project, new insights into the application of the natural analogue approach to the assessment of potential waste repository sites were obtained. 6 refs., 1 tab., 1 fig

  14. Alligator rivers analogue project an OECD/NEA international project

    International Nuclear Information System (INIS)

    The Koongarra uranium deposit in the Alligator Rivers Region of the Northern Territory of Australia was studied as a natural analogue of the far field behaviour of high level waste repositories following groundwater ingress. A number of mathematical modelling approaches were developed for processes as diverse as groundwater transport, host rock weathering, radionuclide sorption, evolution of the uranium dispersion fan and the distribution of uranium series nuclides between mineral assemblages in weathered host rock. Some of these models are relevant to performance assessment at the level of individual processes and subsystem performance. Through the project, new insights into the application of the natural analogue approach to the assessment of potential waste repository sites were obtained

  15. The Greenland Analogue Project, Yearly Report 2009

    International Nuclear Information System (INIS)

    To advance the understanding of processes associated with glaciation and their impact on the long-term performance of a deep geological repository, the Greenland Analogue Project (GAP), a four-year field and modelling study of the Greenland ice sheet and sub-surface conditions, has been initiated collaboratively by SKB, Posiva and NWMO. The study site encompasses a land terminus portion of the Greenland ice sheet east of Kangerlussuaq and is in many ways considered to be an appropriate analogue of the conditions that are expected to prevail in much of Canada and Fennoscandia during future glacial cycles. The project is planned to run from 2009 until 2012. The GAP will conduct the first in situ investigations of some of the parameters and processes needed to achieve a realistic understanding of how an ice sheet may impact a deep repository, and will provide measurements, observations and data that may significantly improve our safety assessments and risk analyses of glaciation scenarios. The project includes three sub-projects (A-C) with specific individual objectives, which collectively aim at contributing knowledge and input to the overall project aim. Three field campaigns were carried out in SPA during 2009. These campaigns focused on: (1) deployment and maintenance of AWS and GPS stations and to test the deep-look radar equipment; (2) investigating the hydrological processes and feedbacks and testing of passive seismic equipment; (3) downloading of weather station data and GPS data and winterizing the equipment. An extensive archive of real-time satellite remote sensing datasets has been obtained to be able to better constraint the surface elevation and dynamics of basal hydrological mechanisms. From this archive it has been possible to obtain Russell Glacier Cachment (RGC)-wide constraints on annual, seasonal and specific temporal snapshots of surface speed, initial lake and moulin distribution, drainage and network connections along with the temporal

  16. Alligator Rivers Analogue project - Geologic Setting

    International Nuclear Information System (INIS)

    In this volume the author synthesizes the results of the investigations carried over more than 20 years in the Koongarra area. It describes its regional geologic setting, geological evolution and the exploration activities carried out to date. The secondary ore of the Koongarra No. 1 uranium orebody provides a natural analogue suitable for validation of models for radionuclide transport. Although the primary uranium mineralisation occurs as uraninite veins and veinlets in fractures and brecciated zones that cross cut the steeply dipping (55 deg.C) host schists, weathering and dispersion of uranium within the zone of weathered schists has formed this secondary ore. The interaction of the weathering processes with the mineralogy and geochemistry of the unweathered host schists, and the primary hydrothermal alteration halo with and around the primary uranium mineralisation, has also been critical in the development of the secondary ore. This secondary ore natural analogue being at a shallow depth, plus the availability of open boreholes and drill core/borehole samples, has facilitated groundwater and rock investigations. 49 refs., 4 tabs., 42 figs

  17. Project X: Physics Opportunities

    CERN Document Server

    Kronfeld, Andreas S; Al-Binni, Usama; Altmannshofer, Wolfgang; Ankenbrandt, Charles; Babu, Kaladi; Banerjee, Sunanda; Bass, Matthew; Batell, Brian; Baxter, David V; Berezhiani, Zurab; Bergevin, Marc; Bernstein, Robert; Bhattacharya, Sudeb; Bishai, Mary; Blum, Thomas; Bogacz, S Alex; Brice, Stephen J; Brod, Joachim; Bross, Alan; Buchoff, Michael; Burgess, Thomas W; Carena, Marcela; Castellanos, Luis A; Chattopadhyay, Subhasis; Chen, Mu-Chun; Cherdack, Daniel; Christ, Norman H; Chupp, Tim; Cirigliano, Vincenzo; Coloma, Pilar; Coppola, Christopher E; Cowsik, Ramanath; Crabtree, J Allen; Delahaye, Jean-Pierre; Denisov, Dmitri; deNiverville, Patrick; de Gouvêa, André; Dharmapalan, Ranjan; Dolgov, Alexander; Dvali, Georgi; Eichten, Estia; Engelfried, Jürgen; Ferguson, Phillip D; Gabriel, Tony; Gal, Avraham; Gallmeier, Franz; Ganezer, Kenneth S; Gardner, Susan; Glenzinski, Douglas; Godfrey, Stephen; Golubeva, Elena S; Gori, Stefania; Graves, Van B; Greene, Geoffrey; Griffard, Cory L; Haisch, Ulrich; Handler, Thomas; Hartfiel, Brandon; Hawari, Ayman; Heilbronn, Lawrence; Hill, James E; Huber, Patrick; Jaffe, David E; Johnson, Christian; Kamyshkov, Yuri; Kaplan, Daniel M; Kerbikov, Boris; Kiburg, Brendan; Kirk, Harold G; Klein, Andreas; Knoepfel, Kyle; Kopeliovich, Boris; Kopeliovich, Vladimir; Kopp, Joachim; Korsch, Wolfgang; Kribs, Graham; Lipton, Ronald; Liu, Chen-Yu; Lorenzon, Wolfgang; Lu, Zheng-Tian; Makins, Naomi C R; McKeen, David; Mills, Geoffrey; Mohapatra, Rabindra; Mokhov, Nikolai V; Mocko, Michael; Muhrer, Guenter; Mumm, Pieter; Okun, Lev; Neuffer, David; Palmer, Mark A; Palmer, Robert; Pattie, Robert W; Phillips, David G; Pronsikh, Vitaly; Pitts, Kevin; Pospelov, Maxim; Quigg, Chris; Ramberg, Erik; Ray, Amlan; Reimer, Paul E; Richards, David G; Ritz, Adam; Roy, Amit; Ruggles, Arthur; Ryne, Robert; Sarkar, Utpal; Saunders, Andy; Semertzidis, Yannis K; Serebrov, Anatoly; Shimizu, Hirohiko; Shrock, Robert; Snopok, Pavel V; Snow, William M; Sikdar, Arindam K; Soha, Aria; Spanier, Stefan; Striganov, Sergei; Tang, Zhaowen; Townsend, Lawrence; Urheim, Jon; Vainshtein, Arkady; Van Kooten, Richard J; Van de Water, Richard; Van de Water, Ruth S; Wehring, Bernard; Whitehead, Lisa; Wilson, Robert J; Worcester, Elizabeth; Young, Albert R; Wester, William C; Zeller, Geralyn

    2013-01-01

    Part 2 of "Project X: Accelerator Reference Design, Physics Opportunities, Broader Impacts". In this Part, we outline the particle-physics program that can be achieved with Project X, a staged superconducting linac for intensity-frontier particle physics. Topics include neutrino physics, kaon physics, muon physics, electric dipole moments, neutron-antineutron oscillations, new light particles, hadron structure, hadron spectroscopy, and lattice-QCD calculations.

  18. Application of natural analogues in the Yucca Mountain project - overview

    International Nuclear Information System (INIS)

    The Natural Analogue Synthesis Report (NASR) [1] provides a compilation of information from analogues that test, corroborate, and add confidence to process models and model predictions pertinent to total system performance assessment (TSPA). The report updated previous work [2] with new literature examples and results of quantitative studies conducted by the Yucca Mountain Project (YMP). The intent of the natural analogue studies was to collect corroborative evidence from analogues to demonstrate greater understanding of processes expected to occur during postclosure of a proposed Yucca Mountain repository. Natural analogues, as used here, refer to either natural or anthropogenic systems in which processes similar to those expected to occur in a nuclear waste repository are thought to have occurred over long time periods (decades to millenia) and large spatial scales (up to tens of kilometers). In the past, the YMP has used analogues for testing and building confidence in conceptual and numerical process models in a number of ways. Yucca Mountain mineral alteration phases provided a self-analogue for postclosure alteration [3]. Thermodynamic parameters for silica minerals of the Wairakai, New Zealand geothermal field were added to databases used in geochemical modeling [4]. Scoping calculations of radionuclide transport using the Yucca Mountain TSPA numerical model were conducted for the Peqa Blanca site [5]. Eruption parameters from the Cerro Negro volcano, Nicaragua, were used to verify codes that model ash plume dispersion [6]. Analogues have also been used in supplemental science and performance analyses to provide multiple lines of evidence in support of both analyses and model reports (AMRs) [7]; in screening arguments for inclusion or exclusion of features, events, and processes (FEP)s in TSPAs; in the quantification of uncertainties [7]; in expert elicitations of volcanic and seismic hazards [8, 9] and in peer reviews [10]. Natural analogues may be applied

  19. The Greenland Analogue Project. Yearly Report 2010

    International Nuclear Information System (INIS)

    Sub-project A, (SPA), Ice sheet hydrology and subglacial groundwater formation. SPA aims to improve the understanding of ice sheet hydrology (i.e. to assess how an ice sheet impacts groundwater circulation and chemistry in crystalline bedrock) up to, including, and beyond proposed repository depths. The data collected in SPA will be utilized in numerical ice sheet flow and hydrological modelling. SPA focuses on indirect observations of the properties of the basal hydrological system, and on what parts of the ice sheet that contribute water for groundwater infiltration. The latter includes quantification of ice sheet surface water production and how that water is routed from the ice sheet surface to its basal interface. This is achieved through remote-sensing, as well as direct measurements of vertical ice displacement and horizontal velocity fluctuation, and the determination of how these parameters vary in space and time under variable surface meltwater production and routing. Main activities within SPA involve (1) the installation and monitoring of GPS receivers and automatic weather stations on the ice sheet, and (2) air borne- and ground-based radar studies. Sub-project B, (SPB), Subglacial ice sheet hydrology. SPB, like SPA, aims at improving the understanding of ice sheet hydrology. SPB aims at collecting direct observations and measurements of the characteristics of the hydrological system at the base of the ice sheet. The data collected in SPB will be utilized in numerical ice sheet flow and hydrological modelling. The main activity for SPB is drilling through the ice sheet at a number of locations where the ice sheet has been found to be wet-based from the radar surveys in SPA. The purpose of the drilling and borehole monitoring installations is to observe water pressures at the interface between the ice and bedrock. In addition to the ice drilling, collection of remote sensing data of ice-sheet surface conditions are to be carried out. SPB is the core of

  20. The Greenland Analogue Project. Yearly Report 2010

    Energy Technology Data Exchange (ETDEWEB)

    Harper, J. (Univ. of Montana (United States)); Hubbard, A. (Aberystwyth Univ. (United Kingdom)); Ruskeeniemi, T. (Geological Survey of Finland (Finland)) (and others)

    2011-12-15

    Sub-project A, (SPA), Ice sheet hydrology and subglacial groundwater formation. SPA aims to improve the understanding of ice sheet hydrology (i.e. to assess how an ice sheet impacts groundwater circulation and chemistry in crystalline bedrock) up to, including, and beyond proposed repository depths. The data collected in SPA will be utilized in numerical ice sheet flow and hydrological modelling. SPA focuses on indirect observations of the properties of the basal hydrological system, and on what parts of the ice sheet that contribute water for groundwater infiltration. The latter includes quantification of ice sheet surface water production and how that water is routed from the ice sheet surface to its basal interface. This is achieved through remote-sensing, as well as direct measurements of vertical ice displacement and horizontal velocity fluctuation, and the determination of how these parameters vary in space and time under variable surface meltwater production and routing. Main activities within SPA involve (1) the installation and monitoring of GPS receivers and automatic weather stations on the ice sheet, and (2) air borne- and ground-based radar studies. Sub-project B, (SPB), Subglacial ice sheet hydrology. SPB, like SPA, aims at improving the understanding of ice sheet hydrology. SPB aims at collecting direct observations and measurements of the characteristics of the hydrological system at the base of the ice sheet. The data collected in SPB will be utilized in numerical ice sheet flow and hydrological modelling. The main activity for SPB is drilling through the ice sheet at a number of locations where the ice sheet has been found to be wet-based from the radar surveys in SPA. The purpose of the drilling and borehole monitoring installations is to observe water pressures at the interface between the ice and bedrock. In addition to the ice drilling, collection of remote sensing data of ice-sheet surface conditions are to be carried out. SPB is the core of

  1. Alligator Rivers Analogue project. Geochemical Data Bases

    International Nuclear Information System (INIS)

    The Koongarra uranium deposit in the Northern Territory of Australia is being studied to evaluate the processes involved in the geochemical alteration of the ore body and the formation of the uranium dispersion fan. A broad range of research is being undertaken into the geochemistry and hydrology of the site with the aim of understanding the transport of radionuclides through the system. During the project a range of geochemical and hydrogeochemical models have been developed to account for measured data from the site and with which to predict site evolution. The majority of these models are based on the premise of thermodynamic chemical equilibrium and employ fundamental thermodynamic data to characterise the chemistry of the system. From the differences which exist between the thermodynamic data bases (Appendices I and II) it is possible to gain a view of the level of uncertainty associated with thermodynamic data in each set of calculations. This report gives a brief introduction to the geochemical processes underlying the models, and details the equations used to quantify the more common of these processes (e.g. aqueous speciation and mineral solubility). A description is given of the computer codes (EQ3/6, PHREEQE, MINTEQ) most commonly used during the project for geochemical modelling. Their key features are highlighted and comparisons made. It is concluded that the degree of uncertainty in geochemical modelling studies arising as a result of using one code rather than another is relatively insignificant when compared to that related to differences in the underlying data bases. 73 refs., 3 figs

  2. Alligator Rivers Analogue Project. Final Report - Volume 1

    International Nuclear Information System (INIS)

    This summary report, which highlights the work and findings of the Alligator Rivers Analogue Project (ARAP) is one of a series of 16 volumes, listed below. Detailed descriptions and results are provided in Volumes 2 to 16. Full acknowledgment to individual contributions is provided in the individual reports, and in Appendix I of this report. The findings from the technical studies are discussed in the context of assessments of the long-term performance of geological repositories for radioactive wastes, which are being undertaken in many countries. They are also considered in an integrated 'Scenario Development' approach, aimed to understand the formation of the ore deposit. Despite their inherent uncertainties, the findings provide a basis for assessing the way in which radionuclides will migrate in environments with a variety of geologic settings and over a range of different geologic timescales. Thus, section 2 of this report discusses the concept of using uranium deposits as natural analogues and refers to a number of such studies, including those at the Koongarra deposit in the Alligator Rivers Region of the Northern Territory of Australia. Section 3 reviews early scientific work in the Alligator Rivers Region and summarises the results of the analogue studies undertaken between 1981 and 1987 that were funded by the US Nuclear Regulatory Commission (USNRC) and the UK Department of the Environment (UKDoE). Section 4 describes the objectives of ARAP and the manner in which the study was conducted and provides a general outline of the project and a summary of the findings. A general description of the Koongarra ore deposit, the focus of ARAP, is provided in Section 5, with Sections 6-13 providing summaries of the work carried out to characterise the site in detail and provide data for modelling. Sections 14-18 discuss how this data was used in modelling and how the results may be applied for performance assessment studies. Finally, Section 19 considers the

  3. The Greenland Analogue Project (GAP). Literature review of hydrogeology/ hydrogeochemistry

    International Nuclear Information System (INIS)

    This report is produced as part of the Greenland Analogue Project (GAP), carried out as a collaboration project with the Canadian Nuclear Waste Management Organization (NWMO), Posiva Oy and the Swedish Nuclear Fuel and Waste Management Co (SKB). The overall aim of the project is to improve the current understanding of hydrogeological and hydrogeochemical processes associated with continental-scale glacial periods including with the presence of permafrost and the advance/retreat of ice sheets. The project will focus on studying how an ice sheet affects groundwater flow and water chemistry around a deep geological repository in crystalline bedrock. The Greenland Analogue Project consists of three active sub-projects (A-C) with individual objectives. Field studies are conducted in the Kangerlussuaq region, in central Western Greenland. Sub-projects A and B collectively aim at improving the understanding of ice sheet hydrology by combining investigations on surface water processes with ice sheet drilling and instrumentation. In sub-project C, the penetration of glacial melt water into the bedrock, groundwater flow and the chemical composition of water will be studied. Main planned activities in sub-project C include drilling of a deep borehole in front of the ice sheet, in which different downhole surveys, sampling and monitoring will be carried out. The primary aim of this report is to review available information about hydrogeology and hydrogeochemistry in central Western Greenland, with special emphasis on the area around Kangerlussuaq. The relevant information about this area is however very limited, and it was decided to extend the review to briefly include studies made in other regions with similar conditions in terms of geology, climate and glaciology. The number of published studies made in other areas with glaciers, ice sheets or permafrost is very large, and the review and list of references in this report is far from complete. It is also obvious that both

  4. The Greenland Analogue Project (GAP). Literature review of hydrogeology/ hydrogeochemistry

    Energy Technology Data Exchange (ETDEWEB)

    Wallroth, Thomas; Lokrantz, Hanna; Rimsa, Andrius (Bergab Consulting Geologists, Goeteborg (Sweden))

    2010-09-15

    This report is produced as part of the Greenland Analogue Project (GAP), carried out as a collaboration project with the Canadian Nuclear Waste Management Organization (NWMO), Posiva Oy and the Swedish Nuclear Fuel and Waste Management Co (SKB). The overall aim of the project is to improve the current understanding of hydrogeological and hydrogeochemical processes associated with continental-scale glacial periods including with the presence of permafrost and the advance/retreat of ice sheets. The project will focus on studying how an ice sheet affects groundwater flow and water chemistry around a deep geological repository in crystalline bedrock. The Greenland Analogue Project consists of three active sub-projects (A-C) with individual objectives. Field studies are conducted in the Kangerlussuaq region, in central Western Greenland. Sub-projects A and B collectively aim at improving the understanding of ice sheet hydrology by combining investigations on surface water processes with ice sheet drilling and instrumentation. In sub-project C, the penetration of glacial melt water into the bedrock, groundwater flow and the chemical composition of water will be studied. Main planned activities in sub-project C include drilling of a deep borehole in front of the ice sheet, in which different downhole surveys, sampling and monitoring will be carried out. The primary aim of this report is to review available information about hydrogeology and hydrogeochemistry in central Western Greenland, with special emphasis on the area around Kangerlussuaq. The relevant information about this area is however very limited, and it was decided to extend the review to briefly include studies made in other regions with similar conditions in terms of geology, climate and glaciology. The number of published studies made in other areas with glaciers, ice sheets or permafrost is very large, and the review and list of references in this report is far from complete. It is also obvious that both

  5. Status of the International Alligator Rivers Analogue Project

    International Nuclear Information System (INIS)

    The International Alligator Rivers Analogue Project (ARAP) commenced on September 1, 1987 under the sponsorship of the OECD Nuclear Energy Agency. Six organizations from five NEA Member countries are participating in a three-year program with a budget of A $2.6 million (US $2 million) in 1987 dollars. The main objective is to contribute to the production of reliable and realistic models of radionuclide migration within geological environments relevant to the assessment of the safety of radioactive waste repositories. A detailed technical program was approved by a Joint Technical Committee and this comprises six main sub-projects: modelling of radionuclide migration, hydrogeology at the Koongarra uranium deposit, uranium/thorium series disequilibria studies, colloid and groundwater studies, fission product studies and transuranic nuclide studies. This paper discusses how collaborative research, service work and consulting contracts are being carried out by organizations in Australia, Japan, the UK and the USA

  6. Cyprus natural analogue project (CNAP). Phase II Final Report

    International Nuclear Information System (INIS)

    Due to the extremely slow kinetics of bentonite reaction in low alkali cement leachates, natural analogues would appear to be the only viable method of studying bentonite reaction. As a result of a review of the available literature, several sites in Cyprus were selected as particularly promising for this purpose. This report presents the results of two short field campaigns in Cyprus in November/December, 2008 and February, 2009. The main aim of these campaigns was to establish if appropriate sites existed for a natural analogue study of bentonite-low alkali cement leachate reaction. Focus is on mineralogical changes and not changes in physical properties (such as porosity and permeability) of bentonite as the industrially-processed bentonite used in a repository will be completely different in terms of its engineering and hydrogeological properties to the unprocessed natural bentonite or analogue smectite-rich materials. The first campaign was in the form of a reconnaissance study to identify sites of likely interest and the second, follow-up, campaign focussed on obtaining preliminary groundwater and solid phase (bentonites/clay-rich sediments/altered igneous rocks/soils) samples which would allow a more detailed assessment of several of the potential sites. A large amount of information was collected during these short field campaigns and subsequent laboratory analysis of the collected samples so, to keep the main report down to a digestible size, much of the supporting information has been collated in seven appendices. These include full details of all 30 sites visited during both campaigns along with sample details, information on the analytical techniques, the analytical raw data and numerous photographs of the sites. The intention is that this report will provide full supporting information for a potential Phase III and a detailed database for our colleagues at the Geological Survey Department (GSD) in Cyprus. Consequently, all the information acquired

  7. Climate Analogues for agricultural impact projection and adaptation – a reliability test

    Directory of Open Access Journals (Sweden)

    Swen P.M. Bos

    2015-10-01

    Full Text Available The climate analogue approach is often considered a valuable tool for climate change impact projection and adaptation planning, especially for complex systems that cannot be modelled reliably. Important examples are smallholder farming systems using agroforestry or other mixed-cropping approaches. For the projected climate at a particular site of interest, the analogue approach identifies locations where the current climate is similar to these projected conditions. By comparing baseline-analogue site pairs, information on climate impacts and opportunities for adaptation can be obtained. However, the climate analogue approach is only meaningful, if climate is a dominant driver of differences between baseline and analogue site pairs. For a smallholder farming setting on Mt. Elgon in Kenya, we tested this requirement by comparing yield potentials of maize and coffee (obtained from the IIASA Global Agro-ecological Zones dataset among 50 close analogue sites for different future climate scenarios and models, and by comparing local ecological knowledge and farm characteristics for one baseline-analogue pair.Yield potentials among the 50 closest analogue locations varied strongly within all climate scenarios, hinting at factors other than climate as major drivers of what the analogue approach might interpret as climate effects. However, on average future climatic conditions seemed more favourable to maize and coffee cultivation than current conditions. The detailed site comparison revealed substantial differences between farms in important characteristics, such as farm size and presence of cash crops, casting doubt on the usefulness of the comparison for climate change analysis. Climatic constraints were similar between sites, so that no apparent lessons for adaptation could be derived. Pests and diseases were also similar, indicating that climate change may not lead to strong changes in biotic constraints at the baseline site in the near future. From

  8. Alligator Rivers Analogue project. Hydrogeological modelling. Final Report - Volume 6

    International Nuclear Information System (INIS)

    This volume describes hydrogeological modelling carried out as part of the Alligator Rivers Analogue Project. Hydrogeology has played a key integrating role in the Project, largely because water movement is believed to have controlled the evolution of the Koongarra uranium Orebody and therefore affects field observations of all types at all scales. Aquifer testing described uses the concept of transmissivity in its interpretation of aquifer response to pumping. The concept of an aquifer, a layer transmitting significant quantities of water in a mainly horizontal direction, seems hard to accept in an environment as heterogeneous as that at Koongarra. But modelling of aquifers both in one dimension and two dimensionally in plan has contributed significantly to our understanding of the site. A one-dimensional model with three layers (often described as a quasi two dimensional model) was applied to flow between the Fault and Koongarra Creek. Being a transient model, this model was able to show that reverse flows can indeed occur back towards the Fault, but only if there is distributed recharge over the orebody as well as a mechanism for the Fault, or a region near the Fault, to remove water from the simulated cross-section. The model also showed clearly that the response of the three-layered system, consisting of a highly weathered zone, a fractured transmissive zone and a less conductive lower schist zone, is governed mainly by the transmissivity and storage coefficient of the middle layer. The storage coefficient of the higher layer has little effect. A two-dimensional model in plan used a description of anisotropy to show that reverse flows can also occur even without a conducting Fault. Modelling of a three-dimensional region using discrete fractures showed that it is certainly possible to simulate systems like that observed at Koongarra, but that large amounts of data are probably needed to obtain realistic descriptions of the fracture networks. Inverse modelling

  9. Analogue-digital systems with modes of physical behaviour

    OpenAIRE

    Beggs, Edwin; Tucker, John V.

    2014-01-01

    Complex environments, processes and systems may exhibit several distinct modes of physical behaviour or operation. Thus, for their design, a set of mathematical models may be needed, each model having its own domain of application and representing a particular mode of behaviour or operation of physical reality. The models may be of disparate kinds and, furthermore, not all physical modes may have a reliable model. What is a mode of behaviour? How do we specify algorithms and software that mon...

  10. Pena Blanca Natural Analogue Project: Summary of activities

    International Nuclear Information System (INIS)

    The inactive Nopal I uranium mine in silicic tuff north of Chihuahua City, Chihuahua, Mexico, was studied as a natural analogue for an underground nuclear-waste repository in the unsaturated zone. Site stratigraphy was confirmed from new drill cores. Data from site studies include chemical and isotopic compositions of saturated- and unsaturated-zone waters. A partial geochronology of uranium enrichment and mineralization was established. Evidence pertinent to uranium-series transport in the soil zone and changing redox conditions was collected. The investigations contributed to preliminary, scoping-level performance assessment modeling.

  11. Pena Blanca Natural Analogue Project: Summary of activities

    Energy Technology Data Exchange (ETDEWEB)

    Levy, S.; Goldstein, S.; Dobson, P.F.; Goodell, P.; Ku, T.-L.; Abdel-Fattah, A.; Saulnier, G.; Fayek, M.; de la Garza, R.

    2011-02-01

    The inactive Nopal I uranium mine in silicic tuff north of Chihuahua City, Chihuahua, Mexico, was studied as a natural analogue for an underground nuclear-waste repository in the unsaturated zone. Site stratigraphy was confirmed from new drill cores. Data from site studies include chemical and isotopic compositions of saturated- and unsaturated-zone waters. A partial geochronology of uranium enrichment and mineralization was established. Evidence pertinent to uranium-series transport in the soil zone and changing redox conditions was collected. The investigations contributed to preliminary, scoping-level performance assessment modeling.

  12. Pena blanca natural analogue project: summary of activities

    Energy Technology Data Exchange (ETDEWEB)

    Levy, Schon S [Los Alamos National Laboratory; Goldstein, Steven J [Los Alamos National Laboratory; Abdel - Fattah, Amr I [Los Alamos National Laboratory

    2010-12-08

    The inactive Nopal I uranium mine in silicic tuff north of Chihuahua City, Chihuahua, Mexico, was studied as a natural analogue for an underground nuclear-waste repository in the unsaturated zone. Site stratigraphy was confirmed from new drill core. Datafrom site studies include chemical and isotopic compositions of saturated- and unsaturated-zone waters. A partial geochronology of uranium enrichment and mineralization was established. Evidence pertinent to uranium-series transport in the soil zone and changing redox conditions was collected. The investigations contributed to preliminary, scoping-level performance assessment modeling.

  13. Heisenberg uncertainty principle and economic analogues of basic physical quantities

    OpenAIRE

    Vladimir Soloviev; Vladimir Saptsin

    2011-01-01

    From positions, attained by modern theoretical physics in understanding of the universe bases, the methodological and philosophical analysis of fundamental physical concepts and their formal and informal connections with the real economic measurings is carried out. Procedures for heterogeneous economic time determination, normalized economic coordinates and economic mass are offered, based on the analysis of time series, the concept of economic Plank's constant has been proposed. The theory h...

  14. Heisenberg uncertainty principle and economic analogues of basic physical quantities

    CERN Document Server

    Soloviev, Vladimir

    2011-01-01

    From positions, attained by modern theoretical physics in understanding of the universe bases, the methodological and philosophical analysis of fundamental physical concepts and their formal and informal connections with the real economic measurings is carried out. Procedures for heterogeneous economic time determination, normalized economic coordinates and economic mass are offered, based on the analysis of time series, the concept of economic Plank's constant has been proposed. The theory has been approved on the real economic dynamic's time series, including stock indices, Forex and spot prices, the achieved results are open for discussion.

  15. The Greenland analogue project, sub-project C 2008 field and data report

    International Nuclear Information System (INIS)

    Site investigations for location of deep geological repositories for spent nuclear fuel have been undertaken and/or are ongoing in Sweden and Finland. The repository will be designed so that radiotoxic material is kept separated from humankind and the environment for several hundred thousand of years. Within this time, frame glaciated period(s) are expected to occur and the effects of the glaciation cycles on a deep geological repository need to be evaluated during the siting process. In order to achieve a better understanding of the expected conditions during future glaciations in Northern Europe and Canada, a modern ice age analogue project (the Greenland Analogue Project, GAP), has been initiated. The Greenland ice sheet is considered an an analogue to future glaciations in Fennoskandia and Canada. The project consists of three discipline specific sub-projects (A, B and C). This document reports the data obtained, and the prelimininary interpretations made, in sub-project C from the bedrock mapping and hydrogeochemical sampling and monitoring in the Kangerlussuaq area (Soendre Stroeoemfjord), West Greenland in 2008. Gently sloping landscape in the Kangerlussuaq area is controlled by bedrock ridges with a prominent south-southwest to north-northeast trend. Ice marginal landforms such as moraine ridges and kame terraces are common as well as periglacial features such as patterned ground, hummocks, ice-wedges, erratics with honeycomb weathering and loss characteristics the soil surfaces. Shallow temperature profiles from soil drill holes (15 m) show that the mean annual ground temperatures (MAGT) close to the airport are around -2 deg C (van Tatenhoven and Olesen 1994). Based on these data, the permafrost is modelled to be 90-160 m thick. It is argued that the infrastructure (airport) may somewhat increase the temperatures, but the main uncertainty is due to the fact that the modelling didn't take into account the change in thermal properties when moving from soil

  16. Alligator Rivers Analogue project. Radionuclide transport. Final Report - Volume 14

    International Nuclear Information System (INIS)

    The Koongarra orebody and its associated dispersion fan are examined as a geological analogue for the transport of radionuclides from waste repositories. The aim is to build a consistent picture of the transport that has been taking place in the orebody and the important processes controlling the retardation of uranium series isotopes and to test models of radionuclide transport. A particularly distinctive feature of the Koongarra system is the strong seasonal dependence of the groundwater flow. However, the Koongarra system is similar to a radioactive waste disposal system in that mobilization of uranium is taking place as a result of the infiltration of groundwaters that are in gross chemical disequilibrium with the mineralogy of the primary ore body. There are considerable differences between the Koongarra uranium orebody and a radioactive waste repository, particularly a deep waste repository. The Koongarra system is shallow, affected by seasonal hydrogeological changes as well as climatic variations on a longer timescale and transport is taking place in a zone of active weathering. Some of these features make the Koongarra system harder to characterise than a deep repository. However, there are nevertheless many analogies between the processes occurring at Koongarra and those occurring around a deep or shallow waste repository. The difficulties encountered because of the heterogeneity of the Koongarra weathered zone mirror those to be addressed in assessing radionuclide transport in repository systems. The 234U/238U activity ratios in rock samples from the dispersion fan decrease in the direction of groundwater transport, whereas in many other systems it has been reported that 234U is preferentially mobile relative to 238U (Osmond and Cowart, 1982; Osmond et al., 1983). As most uranium resides in the rock rather than in the groundwater, the net recoil flux of uranium daughter radionuclides is usually from the rock to the groundwater, thus leading to (234U/238U

  17. Alligator Rivers Analogue project. Radionuclide transport. Final Report - Volume 14

    Energy Technology Data Exchange (ETDEWEB)

    Golian, C. [Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW (Australia); Lever, D.A.; Baker, A.J.; Connell, L.D. [AEA Decommissioning and Radwaste, Harwell (United Kingdom); Bennett, D.G.; Read, D. [WS Atkins Science and Technology Epsom Surrey (United Kingdom); Lindgreen, M.; Pers, K.; Skagius, K. [Kemakta Consultants co., Stockholm (Sweden); Murakami, T.; Ohnuki, T. [Japan Atomic Energy Research Institute, Tokai-mura, IBARAKI (Japan)

    1992-12-31

    The Koongarra orebody and its associated dispersion fan are examined as a geological analogue for the transport of radionuclides from waste repositories. The aim is to build a consistent picture of the transport that has been taking place in the orebody and the important processes controlling the retardation of uranium series isotopes and to test models of radionuclide transport. A particularly distinctive feature of the Koongarra system is the strong seasonal dependence of the groundwater flow. However, the Koongarra system is similar to a radioactive waste disposal system in that mobilization of uranium is taking place as a result of the infiltration of groundwaters that are in gross chemical disequilibrium with the mineralogy of the primary ore body. There are considerable differences between the Koongarra uranium orebody and a radioactive waste repository, particularly a deep waste repository. The Koongarra system is shallow, affected by seasonal hydrogeological changes as well as climatic variations on a longer timescale and transport is taking place in a zone of active weathering. Some of these features make the Koongarra system harder to characterise than a deep repository. However, there are nevertheless many analogies between the processes occurring at Koongarra and those occurring around a deep or shallow waste repository. The difficulties encountered because of the heterogeneity of the Koongarra weathered zone mirror those to be addressed in assessing radionuclide transport in repository systems. The {sup 234}U/{sup 238}U activity ratios in rock samples from the dispersion fan decrease in the direction of groundwater transport, whereas in many other systems it has been reported that {sup 234}U is preferentially mobile relative to {sup 238}U (Osmond and Cowart, 1982; Osmond et al., 1983). As most uranium resides in the rock rather than in the groundwater, the net recoil flux of uranium daughter radionuclides is usually from the rock to the groundwater

  18. Cyprus natural analogue project (CNAP). Phase III final report

    International Nuclear Information System (INIS)

    The CNAP Phase III project was carried out following identification of the requirement to support ongoing laboratory and modelling efforts on the potential reaction of the bentonite buffer with cementitious leachates in the repository EBS. Although it is known that the higher pH (12.5 to 13) leachates from OPC cement will degrade bentonite, it is unclear if this will also be the case for the lower pH (10 to 11) leachates typical of low alkali cements. Ongoing laboratory and URL programmes which are currently investigating this face the obstacle of slow kinetics and the production of short-lived metastable phases, meaning obtaining unambiguous results may take decades. This is exacerbated by the limitations of the thermodynamic databases for minerals of interest to models of bentonite/low alkali cement leachate reaction. It was therefore decided to implement a focussed NA study on bentonite/low alkali cement leachate reaction to provide indications of likely long-term reaction products and reaction pathways to provide feedback on the existing short-term investigations noted above and to ascertain if any critical path R and D needs to be instigated now. The results of the analyses presented here suggest that there has been very limited alkaline groundwater reaction with the bentonite. This is generally supported by both the geomorphological evidence and the natural decay series data which imply groundwater groundwater/rock interaction in the last 105 a. When integrated with the novel data currently being produced in the BIGRAD project, the CNAP data tend to indicate that any long-term bentonite reaction in low alkali cement leachates is minimal. (orig.)

  19. Cyprus natural analogue project (CNAP). Phase III final report

    Energy Technology Data Exchange (ETDEWEB)

    Alexander, W.R. [Bedrock Geosciences, Auenstein (Switzerland); Milodowski, A.E. [British Geological Survey, Keyworth (United Kingdom); Pitty, A.F. [Pitty (EIA) Consulting, Norwich (United Kingdom)] (eds.)

    2012-01-15

    The CNAP Phase III project was carried out following identification of the requirement to support ongoing laboratory and modelling efforts on the potential reaction of the bentonite buffer with cementitious leachates in the repository EBS. Although it is known that the higher pH (12.5 to 13) leachates from OPC cement will degrade bentonite, it is unclear if this will also be the case for the lower pH (10 to 11) leachates typical of low alkali cements. Ongoing laboratory and URL programmes which are currently investigating this face the obstacle of slow kinetics and the production of short-lived metastable phases, meaning obtaining unambiguous results may take decades. This is exacerbated by the limitations of the thermodynamic databases for minerals of interest to models of bentonite/low alkali cement leachate reaction. It was therefore decided to implement a focussed NA study on bentonite/low alkali cement leachate reaction to provide indications of likely long-term reaction products and reaction pathways to provide feedback on the existing short-term investigations noted above and to ascertain if any critical path R and D needs to be instigated now. The results of the analyses presented here suggest that there has been very limited alkaline groundwater reaction with the bentonite. This is generally supported by both the geomorphological evidence and the natural decay series data which imply groundwater groundwater/rock interaction in the last 10{sup 5} a. When integrated with the novel data currently being produced in the BIGRAD project, the CNAP data tend to indicate that any long-term bentonite reaction in low alkali cement leachates is minimal. (orig.)

  20. Fourth natural analogue working group meeting and Pocos de Caldas project final workshop

    International Nuclear Information System (INIS)

    The fourth meeting of the CEC-sponsored natural analogue working group (NAWG) was held in Pitlochry, Scotland, from 18 to 22 June 1990, and also included the final workshop of the Pocos de Caldas (Brazil) natural analogue project, sponsored by Nagra (CH), SKB (S) UK-DOE and US-DOE. About 80 specialists attended this meeting, originating from EC Member States and also Australia, Brazil, Canada, Finland, Japan, Sweden, Switzerland and the USA. The IAEA and OCDE-NEA were also represented. This plenary meeting was the opportunity to review and discuss five years of progress and activities of natural analogues in central areas of performance assessment: waste forms and engineered barriers, geochemistry and radionuclide speciation, radionuclide migration and the overall geological context of radwaste disposal. In addition, a feedback session provided the opportunity for regulators and those individuals who had advisory roles to give their views and impressions on the significance of natural analogue research. These proceedings, divided into two sessions, contain 32 technical papers and 14 abstracts of published papers

  1. Maqarin natural analogue project: Phase IV. Reconnaissance mission report (April 28 to May 7, 1999)

    International Nuclear Information System (INIS)

    Final planning of the Technical Proposal for Phase IV of the Maqarin Natural Analogue Project was preceded by a ten day Reconnaissance Mission to the Jordan sites. The main objective of this mission was to: i) allow new organisations within the project to become familiar with the geological context of the Maqarin and Central Jordan sites and also to appreciate the prevailing technical and logistical limitations, ii) carry out limited field investigations, and iii) based on the experience from these two points, provide the opportunity to finalise the Maqarin Phase IV Technical Proposal. This report details the results of the mission

  2. Maqarin natural analogue project: Phase IV. Reconnaissance mission report (April 28 to May 7, 1999)

    Energy Technology Data Exchange (ETDEWEB)

    Smellie, J.A.T. [ed.] [Conterra AB, Uppsala (Sweden)

    2000-08-01

    Final planning of the Technical Proposal for Phase IV of the Maqarin Natural Analogue Project was preceded by a ten day Reconnaissance Mission to the Jordan sites. The main objective of this mission was to: i) allow new organisations within the project to become familiar with the geological context of the Maqarin and Central Jordan sites and also to appreciate the prevailing technical and logistical limitations, ii) carry out limited field investigations, and iii) based on the experience from these two points, provide the opportunity to finalise the Maqarin Phase IV Technical Proposal. This report details the results of the mission.

  3. Carriers and sideband pairs and their analogues in physics and Biology

    Science.gov (United States)

    Goldman, Stanford

    1982-09-01

    This is a further development of the author's paper “A Unified Theory of Biology and Physics.” It is found that male and female in biology, as well as particle and antiparticle in physics, are analogues of symmetrical sideband pairs in communication theory. This gives a new point of view from which to investigate the significance and characteristics of these different paired entities. These findings are intimately related to the fact that there are two transform domains of representation of entities in all the cases involved. They are the somatic and the genetic domains in biology, the configuration domain and the domain of conserved observables in physics, and the time and frequency domains in communication.

  4. Breakthrough Propulsion Physics Project: Project Management Methods

    Science.gov (United States)

    Millis, Marc G.

    2004-01-01

    To leap past the limitations of existing propulsion, the NASA Breakthrough Propulsion Physics (BPP) Project seeks further advancements in physics from which new propulsion methods can eventually be derived. Three visionary breakthroughs are sought: (1) propulsion that requires no propellant, (2) propulsion that circumvents existing speed limits, and (3) breakthrough methods of energy production to power such devices. Because these propulsion goals are presumably far from fruition, a special emphasis is to identify credible research that will make measurable progress toward these goals in the near-term. The management techniques to address this challenge are presented, with a special emphasis on the process used to review, prioritize, and select research tasks. This selection process includes these key features: (a) research tasks are constrained to only address the immediate unknowns, curious effects or critical issues, (b) reliability of assertions is more important than the implications of the assertions, which includes the practice where the reviewers judge credibility rather than feasibility, and (c) total scores are obtained by multiplying the criteria scores rather than by adding. Lessons learned and revisions planned are discussed.

  5. Alligator Rivers Analogue project. Application of scenario development method in evaluation of the Koongarra Analogue. Final Report - Volume 16

    Energy Technology Data Exchange (ETDEWEB)

    Skagius, K. [Kemakta Consultants co., Stockholm (Sweden); Wingefors, S. [Swedish Nuclear Power Inspectorate, Stockholm (Sweden)

    1992-12-31

    The study of natural analogues has been established as one of the most important methods for validation of concepts and models applied for the assessment of long-term performance of repositories for nuclear waste. The objectives of such studies range from detailed investigations of processes and features on a small scale to attempts of explaining the evolution of whole sites. For studies of specific processes it may well be as important to consider the larger scale settings as boundary conditions. This appreciation of context and an integrated view may be as important for evaluation of most natural analogues as for performance assessments. This is more evident the more the evaluation depends on a knowledge about the evolution of the natural analogue. The attempted formulation of scenarios of the Koongarra Analogue has been based on the external conditions and external features. A rapid weathering of the host rock, i.e. the chlorite schist, is assumed to have started around the onset of the Pleistocene Ice Age (ca 1.6 Ma BP). The eventual oxidation and mobilization of the uranium ore could then have occurred under unsaturated or saturated conditions. This leads to the following major scenarios: (1) Uranyl Phosphates formed under unsaturated conditions, with a periodical evolution of the dispersion fan in conjunction with alternating dry (glacial) and wet (interglacial) periods during the Pleistocene Ice Age; (2) Uranyl Phosphates formed under unsaturated conditions as a single event, taking place either early or late during the Pleistocene Ice Age; (3)Uranyl Phosphates formed under saturated conditions, in conjunction with periods of higher and lower flow due to the climatic cycling. Although the original objectives may not have been fully achieved, this work is believed to contribute to a better understanding of the Koongarra Analogue as well as to give a basis for further scenario work

  6. Alligator Rivers Analogue project. Application of scenario development method in evaluation of the Koongarra Analogue. Final Report - Volume 16

    International Nuclear Information System (INIS)

    The study of natural analogues has been established as one of the most important methods for validation of concepts and models applied for the assessment of long-term performance of repositories for nuclear waste. The objectives of such studies range from detailed investigations of processes and features on a small scale to attempts of explaining the evolution of whole sites. For studies of specific processes it may well be as important to consider the larger scale settings as boundary conditions. This appreciation of context and an integrated view may be as important for evaluation of most natural analogues as for performance assessments. This is more evident the more the evaluation depends on a knowledge about the evolution of the natural analogue. The attempted formulation of scenarios of the Koongarra Analogue has been based on the external conditions and external features. A rapid weathering of the host rock, i.e. the chlorite schist, is assumed to have started around the onset of the Pleistocene Ice Age (ca 1.6 Ma BP). The eventual oxidation and mobilization of the uranium ore could then have occurred under unsaturated or saturated conditions. This leads to the following major scenarios: (1) Uranyl Phosphates formed under unsaturated conditions, with a periodical evolution of the dispersion fan in conjunction with alternating dry (glacial) and wet (interglacial) periods during the Pleistocene Ice Age; (2) Uranyl Phosphates formed under unsaturated conditions as a single event, taking place either early or late during the Pleistocene Ice Age; (3)Uranyl Phosphates formed under saturated conditions, in conjunction with periods of higher and lower flow due to the climatic cycling. Although the original objectives may not have been fully achieved, this work is believed to contribute to a better understanding of the Koongarra Analogue as well as to give a basis for further scenario work

  7. The project De Caldas International Project: An example of a large-scale radwaste isolation natural analogue study

    Energy Technology Data Exchange (ETDEWEB)

    Shea, M. [TerraCon, Inc., Chicago, IL (United States)

    1995-09-01

    The proper isolation of radioactive waste is one of today`s most pressing environmental issues. Research is being carried out by many countries around the world in order to answer critical and perplexing questions regarding the safe disposal of radioactive waste. Natural analogue studies are an increasingly important facet of this international research effort. The Pocos de Caldas Project represents a major effort of the international technical and scientific community towards addressing one of modern civilization`s most critical environmental issues - radioactive waste isolation.

  8. Alligator rivers analogue project. Final report; volume 1; summary of findings

    International Nuclear Information System (INIS)

    The Koongarra uranium ore deposit is located in the Alligator Rivers Region of the Northern Territory of Australia. Many of the processes that have controlled the development of this natural system are relevant to the performance assessment of radioactive waste repositories. An agreement was reached in 1987 by a number of agencies concerned with radioactive waste disposal to set up the International Alligator Rivers Analogue Project (ARAP) to study relevant aspects of the hydrological and geochemical evolution of the site. The Project ran for five years. The aims of the study were: to contribute to the production of reliable and realistic models for radionuclide migration within geological environments relevant to the assessment of the safety of radioactive waste repositories; to develop methods of validation of models using a combination of laboratory and field data associated with the Koongarra uranium deposit; and to encourage maximum interaction between modellers and experimentalists in achieving these objectives. It was anticipated that the substantial databases generated in the field and laboratory studies would then be used to develop and test geochemical and radionuclide transport models. The findings from the technical studies are discussed in the context of assessments of the long-term performance of geological repositories for radioactive wastes, which are being undertaken in many countries. They are also considered in an integrated 'Scenario Development' approach, aimed to understand the formation of the ore deposit. Despite their inherent uncertainties, the findings provide a basis for assessing the way in which radionuclides will migrate in environments with a variety of geologic settings and over a range of different geologic timescales. This summary report, which highlights the work and findings of the Alligator Rivers Analogue Project is one of a series of 16 volumes

  9. The physics goals of the TESLA project

    OpenAIRE

    Moenig, Klaus

    2001-01-01

    As next generation e+e- linear collider the superconducting accelerator project TESLA has been proposed. In this note the physics potential goals of this project, which is highly complementary to LHC, are described.

  10. Physical mapping, expression analysis and polymorphism survey of resistance gene analogues on chromosome 11 of rice

    Indian Academy of Sciences (India)

    Irfan A Ghazi; Prem S Srivastava; Vivek Dalal; Kishor Gaikwad; Ashok K Singh; Tilak R Sharma; Nagendra K Singh; Trilochan Mohapatra

    2009-06-01

    Rice is the first cereal genome with a finished sequence and a model crop that has important syntenic relationships with other cereal species. The objectives of our study were to identify resistance gene analogue (RGA) sequences from chromosome 11 of rice, understand their expression in other cereals and dicots by in silico analysis, determine their presence on other rice chromosomes, and evaluate the extent of polymorphism and actual expression in a set of rice genotypes. A total of 195 RGAs were predicted and physically localised. Of these, 91.79% expressed in rice, and 51.28% expressed in wheat, which was the highest among other cereals. Among monocots, sugarcane showed the highest (78.92%) expression, while among dicots, RGAs were maximally expressed in Arabidopsis (11.79%). Interestingly, two of the chromosome 11-specific RGAs were found to be expressing in all the organisms studied. Eighty RGAs of chromosome 11 had significant homology with chromosome 12, which was the maximum among all the rice chromosomes. Thirty-one per cent of the RGAs used in polymerase chain reaction (PCR) amplification showed polymorphism in a set of rice genotypes. Actual gene expression analysis revealed post-inoculation induction of one RGA in the rice line IRBB-4 carrying the bacterial blight resistance gene Xa-4. Our results have implications for the development of sequence-based markers and functional validation of specific RGAs in rice.

  11. CDF: Run II Physics Projections

    Energy Technology Data Exchange (ETDEWEB)

    Maashi Tanaka

    2000-12-20

    In March 2001, the Fermilab Tevatron will start a new physics run of p{bar p} collisions at {radical}s = 2.0 TeV. The CDF experiments will collect a data sample of 2 fb{sup {minus}1} in the first two years. In this paper the authors describe the B physics prospects at CDF during the upcoming run.

  12. Scientific projection paper for physics

    International Nuclear Information System (INIS)

    Thorough elucidation of the biological effects of ionizing radiation requires full participation of physical scientists, together with life scientists. Therefore, a key point in the federal research strategy will be to ensure involvement of all physicists actively engaged in radiation research and to recruit more physicists for work in this area. Many new developments in physics, both basic and applied, will occur in dosimetry, spectroscopy, and other physical techniques for studying radiations and their interactions with matter in general. Experiments in radiation biology will be made more precise and accurate in the near future, provided that the outcome of contemporary physical research is to be fully used. Likewise, physics research will continue to provide new kinds of radiation sources and other instrumentation, indispensable for progress in life sciences and their applications. Finally, and most importantly, physical research has provided, and will continue to provide, the soundest possible basis for elucidating detailed mechanisms of molecular and cellular processes that lead to the biological effects of radiation. Even from this point alone, it is amply clear that basic research in radiation physics should be a key element of the federal research strategy

  13. New Projects in Underground Physics

    OpenAIRE

    Goodman, Maury

    2003-01-01

    A large fraction of neutrino research is taking place in facilities underground. In this paper, I review the underground facilities for neutrino research. I discuss ideas for future reactor experiments being considered to measure theta_13 and the UNO proton decay project.

  14. The International intraval project. Phase 1 case 8: The Alligator rivers natural analogue

    International Nuclear Information System (INIS)

    INTRAVAL is an international coordinated research program for predicting the potential radionuclide migration in the geosphere with the use of mathematical models. Such models are used to help assess the long-term safety of radioactive waste disposal systems. The objective of the Alligator Rivers Analogue Project (ARAP) is to identify and study long-term processes that have been significant in the development of the uranium dispersion zone at the Koongarra uranium ore deposit in the Northern Territory of Australia. This report includes a description of the site geology and gives an outline of the experimental programs, which are aimed to study the hydrogeology and geochemistry of the system, and the distribution of uranium and its daughter radionuclides in the rock strata. The extensive databases that have resulted from these studies have been used to develop and test hydrological, geochemical and transport models. A good basis has been established for modelling the transport of radionuclides in the porous, weathered zone of the Koongarra uranium deposit and its surroundings. A number of preliminary transport, hydrology and geochemical modelling reports are given, with the Koongarra databases also being used to test a Performance Assessment model. The possible application of scenario development procedures to the Koongarra site is discussed. 106 refs., 67 figs., 28 tabs

  15. The RHIC project -- Physical challenges

    International Nuclear Information System (INIS)

    The design and construction status of the Relativistic Heavy Ion Collider, RHIC, is discussed. Those novel features of a heavy ion Collider that are distinct from conventional hadron Colliders in general are noted. These features are derived from the experimental requirements of operation with a variety of ion species over a wide energy range including collisions between ions of unequal energies. The project is in the fifth year of a seven-year construction cycle. A review of the superconducting magnet program is given together with progress to date on the machine construction and commissioning. Emphasis is made on challenging issues including intrabeam scattering, interaction-region error compensation, magnet alignments, and matched transition-energy jump

  16. Physics from Angular Projection of Rectangular Grids

    CERN Document Server

    Singh, Ashmeet

    2015-01-01

    In this paper, we present a mathematical model for the angular projection of a rectangular arrangement of points in a grid. This simple, yet interesting problem, has both a scholarly value and applications for data extraction techniques to study the physics of various systems. Our work can interest undergraduate students to understand subtle points in the angular projection of a grid and describes various quantities of interest in the projection with completeness and sufficient rigour. We show that for certain angular ranges, the projection has non-distinctness, and calculate the details of such angles, and correspondingly, the number of distinct points and the total projected length. We focus on interesting trends obtained for the projected length of the grid elements and present a simple application of the model to determine the geometry of an unknown grid whose spatial extensions are known, using measurement of the grid projection at two angles only. Towards the end, our model is shown to have potential ap...

  17. Physical properties of local star-forming analogues to z ˜ 5 Lyman-break galaxies

    Science.gov (United States)

    Greis, Stephanie M. L.; Stanway, Elizabeth R.; Davies, Luke J. M.; Levan, Andrew J.

    2016-07-01

    Intense, compact, star-forming galaxies are rare in the local Universe but ubiquitous at high redshift. We interpret the 0.1-22 μm spectral energy distributions of a sample of 180 galaxies at 0.05 local analogue population well tuned to match those high-redshift galaxies. We consider implications for the origin and evolution of early galaxies.

  18. Irreducible Projective Representations and Their Physical Applications

    CERN Document Server

    Yang, Jian

    2016-01-01

    An eigenfunction method was applied to reduce the regular projective representations (Reps) of finite groups, especially anti-unitary groups, into direct sum of their irreducible projective Reps. In this approach, there is no need to refer to the covering group. The Rep theory for anti-unitary groups are very different from that of unitary groups, for instance, the character is no longer a good quantity, the Schur's lemma should be modified and consequently the number of irreducible (projective or linear) Reps of the same class is not always the same as the number of linearly independent class operators. Physical applications of irreducible projective Reps are discussed.

  19. Undergraduate computational physics projects on quantum computing

    Science.gov (United States)

    Candela, D.

    2015-08-01

    Computational projects on quantum computing suitable for students in a junior-level quantum mechanics course are described. In these projects students write their own programs to simulate quantum computers. Knowledge is assumed of introductory quantum mechanics through the properties of spin 1/2. Initial, more easily programmed projects treat the basics of quantum computation, quantum gates, and Grover's quantum search algorithm. These are followed by more advanced projects to increase the number of qubits and implement Shor's quantum factoring algorithm. The projects can be run on a typical laptop or desktop computer, using most programming languages. Supplementing resources available elsewhere, the projects are presented here in a self-contained format especially suitable for a short computational module for physics students.

  20. The Palmottu natural analogue project. The behaviour of natural radionuclides in and around uranium deposits. Summary report 1992-1994

    International Nuclear Information System (INIS)

    The Palmottu U-Th mineralization at Nummi-Pusula, southwestern Finland, has been studied as a natural analogue to deep disposal of radioactive wastes since 1988. The report gives a summary of the results of investigations carried out during the years 1992-1994. The Palmottu Analogue Project aims at a more profound understanding of radionuclide transport processes in fractured crystalline bedrock. The essential factors controlling transport are groundwater flow and interaction between water and rock. Accordingly, the study includes structural interpretations based in part on geophysical measurements, hydrological studies including hydraulic downhole measurements, flow modelling, hydrogeochemical characterization of groundwater, uranium chemistry and colloid chemistry, mineralogical studies, geochemical interpretation and modelling, including paleohydrogeological aspects, and studies of radionuclide mobilization and migration processes including numerical simulations. The project has produced a large amount of data related to natural analogue aspects. The data obtained have already been utilized in developing logical conceptual ideas of the time frames and processes operating in the bedrock of the site. (61 refs., 24 figs., 8 tabs.)

  1. The Palmottu Analogue Project, Progress Report 1993. The behaviour of natural radionuclides in and around uranium deposits, Nr. 7

    International Nuclear Information System (INIS)

    The report gives a summary of the results of investigations carried out in 1993 at the Palmottu natural analogue study site, which comprises a small U-Th mineralization in Nummi-Pusula, southwestern Finland. Additionally, the report includes several separate articles dealing with various aspects of the Palmottu Analogue Project: (1) 3-dimensional model of fracture zones, (2) redox chemistry of uranium in groundwater, (3) humic substances in groundwater, (4) uranium mineralogy, (5) importance of selective extractions in uranium migration studies, (6) modelling of matrix diffusion, and (7) uranium in surficial deposits. The Palmottu Analogue Project aims at a more profound understanding of radionuclide transport processes in fractured crystalline bedrock. The essential factors controlling transport are groundwater flow and interaction between water and rock. Accordingly, the study includes (1) structural interpretations partly based on geophysical measurements, (2) hydrological studies including hydraulic drill-hole measurements, (3) flow modelling, (4) hydrogeochemical characterization of groundwater, uranium chemistry and colloid chemistry, (5) mineralogical studies, (6) geochemical interpretation and modelling, (7) studies on mobilization and retardation of uranium, and (8) modelling of uranium series data. Paleohydrogeological aspects are of special interest, due to the anticipated future glaciation of the Fennoscandian Shield. Surficial sediments and waters are studied to gain information on postglacial migration in the overburden. (orig.)

  2. The Palmottu natural analogue project. The behaviour of natural radionuclides in and around uranium deposits. Summary report 1992-1994

    Energy Technology Data Exchange (ETDEWEB)

    Blomqvist, R.; Ruskeeniemi, T.; Ahonen, L. [Geological Survey of Finland, Espoo (Finland); Suksi, J. [Helsinki Univ. (Finland). Lab. of Radiochemistry; Niini, H. [Helsinki Univ. of Technology, Otaniemi (Finland). Lab. of Engineering Geology and Geophysics; Vuorinen, U. [VTT Chemical Technology, Espoo (Finland); Jakobsson, K. [Finnish Centre for Radiation and Nuclear Safety, Helsinki (Finland)

    1995-06-01

    The Palmottu U-Th mineralization at Nummi-Pusula, southwestern Finland, has been studied as a natural analogue to deep disposal of radioactive wastes since 1988. The report gives a summary of the results of investigations carried out during the years 1992-1994. The Palmottu Analogue Project aims at a more profound understanding of radionuclide transport processes in fractured crystalline bedrock. The essential factors controlling transport are groundwater flow and interaction between water and rock. Accordingly, the study includes structural interpretations based in part on geophysical measurements, hydrological studies including hydraulic downhole measurements, flow modelling, hydrogeochemical characterization of groundwater, uranium chemistry and colloid chemistry, mineralogical studies, geochemical interpretation and modelling, including paleohydrogeological aspects, and studies of radionuclide mobilization and migration processes including numerical simulations. The project has produced a large amount of data related to natural analogue aspects. The data obtained have already been utilized in developing logical conceptual ideas of the time frames and processes operating in the bedrock of the site. (61 refs., 24 figs., 8 tabs.).

  3. The Greenland Analogue Project. Geomodel version 1 of the Kangerlussuaq area on Western Greenland

    Energy Technology Data Exchange (ETDEWEB)

    Engstroem, Jon; Paananen, Markku (Geological Survey of Finland (Finland)); Klint, Knud Erik (The National Geological Survey of Denmark and Greenland (Denmark))

    2012-02-15

    During the 2nd annual Greenland Analogue Project modelling workshop in Toronto, November 2010, the hydrological modellers requested an updated geological map and structural model of the field area around Kangerlussuaq, Western Greenland. This report presents an updated GAP geomodel which utilizes all available information in order to improve the accuracy of the model, especially beneath the ice sheet. The modelling area was divided into two scales: The regional scale area and the site scale area. The site scale refers to the area were surface mapping has been performed, and where two boreholes (DH-GAP01 and DH-GAP03) were drilled during 2009. Geological and topographical maps from GEUS (sub-model 1) and data extracted from the geophysical map, GEUS, (sub-model 2) were used in the process to develop GAP geomodel version 1. These two interpretations were independent from each other and in the final stage these sub-models were integrated and developed into GAP geological model version 1. The integration resulted in a total of 158 lineaments. These lineaments are referred in the final model as deformation zones and faults, where deformation zones are larger features and faults are single fractures indicating some sense of movement. Four different sets of deformation zones and faults were identified in the regional area. The most prominent feature is the ductile/brittle roughly ENE-WSW trending zones crosscutting the whole area, referred as Type 1. Type 2 and Type 3 zones are in general smaller scale than Type 1 and mostly dominated by brittle deformation. The Type 2 system generally trends NW-SE, while the Type 3 system generally trends NE-SW. The Type 4 features are a brittle and roughly N-S orientated younger system, thus crosscutting all other types. Confirmation and validation of the regional model is based on detailed surface-based examination of fractures within the site area, although the scale is different the same orientations were also identified in the

  4. The Greenland analogue project. Geomodel version 1 of the Kangerlussuaq area on Western Greenland

    Energy Technology Data Exchange (ETDEWEB)

    Engstroem, J.; Paananen, M. [GTK Geological Survey of Finland, Espoo (Finland); Klint, K.E. [GEUS Geological Survey of Denmark and Greenland, Copenhagen (Denmark)

    2012-02-15

    During the 2nd annual Greenland Analogue Project modelling workshop in Toronto, November 2010, the hydrological modellers requested an updated geological map and structural model of the field area around Kangerlussuaq, Western Greenland. This report presents an updated GAP Geomodel which utilizes all available information in order to improve the accuracy of the model, especially beneath the ice-sheet. The modelling area was divided into two scales: The regional scale area and the site scale area. The site scale refers to the area were surface mapping has been performed, and where two drillholes (DH-GAP01 and DH-GAP03) were drilled during 2009. Geological and topographical maps from GEUS (sub-model 1) and data extracted from the Geophysical map, GEUS, (sub-model 2) were used in the process to develop GAP Geomodel version 1. These two interpretations were independent from each other and in the final stage these sub-models were integrated and developed into GAP Geological model version 1. The integration resulted in a total of 158 lineaments. These lineaments are referred in the final model as deformation zones and faults, where deformation zones are larger features and faults are single fractures indicating some sense of movement. Four different sets of deformation zones and faults were identified in the regional area. The most prominent feature is the ductile/brittle roughly ENE-WSW trending zones crosscutting the whole area; referred as Type 1. Type 2 and Type 3 zones are in general smaller scale than Type 1 and mostly dominated by brittle deformation. The Type 2 system generally trends NW-SE, while the Type 3 system generally trends NE-SW. The Type 4 features are a brittle and roughly N-S orientated younger system, thus crosscutting all other types. Confirmation and validation of the regional model is based on detailed surface-based examination of fractures within the site area, although the scale is different the same orientations were also identified in the

  5. Project Physics Tests 4, Light and Electromagnetism.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Test items relating to Project Physics Unit 4 are presented in this booklet. Included are 70 multiple-choice and 22 problem-and-essay questions. Concepts of light and electromagnetism are examined on charges, reflection, electrostatic forces, electric potential, speed of light, electromagnetic waves and radiations, Oersted's and Faraday's work,…

  6. Project Physics Teacher Guide 6, The Nucleus.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 6 are presented to help teachers make effective use of learning materials. Unit contents are discussed in connection with teaching aid lists, multi-media schedules, schedule blocks, and resource charts. Brief summaries are made for transparencies, 16mm films, and reader articles. Included is information…

  7. Project Physics Tests 1, Concepts of Motion.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Test items relating to Project Physics Unit 1 are presented in this booklet, consisting of 70 multiple-choice and 20 problem-and-essay questions. Concepts of motion are examined with respect to velocities, acceleration, forces, vectors, Newton's laws, and circular motion. Suggestions are made for time consumption in answering some items. Besides…

  8. Project Physics Reader 1, Concepts of Motion.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    As a supplement to Project Physics Unit 1, 21 articles are presented in this reader. Concepts of motion are discussed under headings: motion, motion in words, representation of movement, introducing vectors, Galileo's discussion of projectile motion, Newton's laws of dynamics, the dynamics of a golf club, report on Tait's lecture on force, and bad…

  9. Project Physics Text 1, Concepts of Motion.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Fundamental concepts of motion are presented in this first unit of the Project Physics textbook. Descriptions of motion are made in connection with speeds, accelerations, and their graphical representation. Free-fall bodies are analyzed by using Aristotle's theory and Galileo's work. Dynamics aspects are discussed with a background of mass, force,…

  10. Alligator Rivers Analogue project. Hydrogeological field studies. Final Report - Volume 5

    Energy Technology Data Exchange (ETDEWEB)

    Davis, S.N. [Univ of Arizona, Tucson, Arizona (United States). Dept of Hydrology and Water Resources; Marley, R.D. [D.B. Stephens and Associates Inc., Albuquerque, NM (United States); Norris, J.R. [Hydro Geo Chem Inc., Tucson, Arizona (United States)

    1992-12-31

    The hydrogeology of the Koongarra site was interpreted primarily from long-term hydrographs, water-level maps, water injection tests, aquifer pumping tests, logs of boreholes, and chemical analyses of groundwater samples. Data have been collected over a 21-year period starting with test-drilling in 1970. The first intensive period of hydrogeologic investigations was from 1978 through 1981 and was related to anticipated exploitation of uranium ore at Koongarra. The second period was from 1986 through 1991 and was related to the international Alligator Rivers Analogue Project under the direction of the Australian Nuclear Science and Technology Organisation. The conclusion which can be drawn from the chemical data is that water moving out of the No. 1 ore deposit is diluted rapidly with recharge from the surface as it migrates down the hydraulic gradient. Most of the groundwater outside of the ore deposit does not originate from the ore deposit, and flow models which assume unmodified stream tubes extending out of the ore deposit in a downgradient direction do not reflect the true system. Water in the ore deposit itself, must come from slow upward seepage through the fault zone. Owing to the fact that this water must be at least hundreds of years old, observed fluctuations of water levels in the deposit must reflect pressure head variations induced by seasonal recharge to the overlying surficial materials. Water level fluctuations do not signify a yearly displacement of water deep in the system. Water in the deeper part of the ore must be almost static compared to obvious rapid groundwater circulation in the area around PH88. Small changes in pH, temperature and specific electrical conductivity during aquifer tests indicate a complex hydraulic system which has a variable response to pumping as a function of time. Low concentration in tritium and Carbon-14 together with high concentrations of dissolved helium in the groundwaters all suggested strongly that semi static

  11. Alligator Rivers Analogue project. Hydrogeological field studies. Final Report - Volume 5

    International Nuclear Information System (INIS)

    The hydrogeology of the Koongarra site was interpreted primarily from long-term hydrographs, water-level maps, water injection tests, aquifer pumping tests, logs of boreholes, and chemical analyses of groundwater samples. Data have been collected over a 21-year period starting with test-drilling in 1970. The first intensive period of hydrogeologic investigations was from 1978 through 1981 and was related to anticipated exploitation of uranium ore at Koongarra. The second period was from 1986 through 1991 and was related to the international Alligator Rivers Analogue Project under the direction of the Australian Nuclear Science and Technology Organisation. The conclusion which can be drawn from the chemical data is that water moving out of the No. 1 ore deposit is diluted rapidly with recharge from the surface as it migrates down the hydraulic gradient. Most of the groundwater outside of the ore deposit does not originate from the ore deposit, and flow models which assume unmodified stream tubes extending out of the ore deposit in a downgradient direction do not reflect the true system. Water in the ore deposit itself, must come from slow upward seepage through the fault zone. Owing to the fact that this water must be at least hundreds of years old, observed fluctuations of water levels in the deposit must reflect pressure head variations induced by seasonal recharge to the overlying surficial materials. Water level fluctuations do not signify a yearly displacement of water deep in the system. Water in the deeper part of the ore must be almost static compared to obvious rapid groundwater circulation in the area around PH88. Small changes in pH, temperature and specific electrical conductivity during aquifer tests indicate a complex hydraulic system which has a variable response to pumping as a function of time. Low concentration in tritium and Carbon-14 together with high concentrations of dissolved helium in the groundwaters all suggested strongly that semi static

  12. Project as an education method in teaching of physics

    OpenAIRE

    VEVERKOVÁ, Klára

    2011-01-01

    The diploma thesis ?Project as an educational method for teaching physics ?deals with the possibilities of using project-based method for teaching physics at primary schools. Not only does it contain the theoretical background of project-based teaching, but also deals with practical issues in the form of an implementation of a chosen project ?Physics and physical education?. The aim of said project was to evaluate the efficiency of project-based teaching as far as the knowledge of pupils and ...

  13. The Physics of the Manhattan Project

    CERN Document Server

    Reed, B. Cameron

    2011-01-01

    The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This book, prepared by a gifted teacher of physics, explores the challenges that faced the members of the Manhattan project. In doing so it gives a clear introduction to fission weapons at the level of an upper-level undergraduate physics student. Details of nuclear reactions, their energy release, the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design are covered. An extensive list of references and a number of problems for self-study are included. Links are given to several spreadsheets with which users can run many of the calculations for themselves.

  14. The physics of the Manhattan project

    International Nuclear Information System (INIS)

    The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This book, prepared by a gifted teacher of physics, explores the challenges that faced the members of the Manhattan project. In doing so it gives a clear introduction to fission weapons at the level of an upper-level undergraduate physics student. Details of nuclear reactions, their energy release, the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design are covered. An extensive list of references and a number of problems for self-study are included. Links are given to several spreadsheets with which users can run many of the calculations for themselves. (orig.)

  15. The Alligator Rivers Analogue Project - Radionuclide migration around uranium ore bodies

    International Nuclear Information System (INIS)

    Uranium ore bodies in the Alligator Rivers Uranium Province in Australia have been studied since 1981 as analogues of radioactive waste repositories. The main objectives were to understand the processes governing the migration of radionuclides, particularly uranium- and thorium- series radionuclides, under groundwater flow, to develop and test models to describe this migration, and to demonstrate the applicability of the results to the safety analysis of radioactive waste repositories

  16. Simultaneous development of semigrabens orthogonal and oblique to the extension direction: physical modeling of natural analogues in Northeastern Brazil

    Directory of Open Access Journals (Sweden)

    André João Palma Conde Blanco

    2014-03-01

    Full Text Available The physical modeling tool is being increasingly used in geology to provide information about the evolutionary stages (nucleation, growth and geometry of geological structures at various scales. In the simulations of extensional tectonics, modeling provides a better understanding of fault geometry and evolution of the tectonic-stratigraphic architecture of rift basins. In this study a sandbox type apparatus was used to study the nucleation and development of basins influenced by previous structures in the basement, variably oriented as regards to the main extensional axis. Two types of experiments were conducted in order to: (i simulate the individual (independent development of half-grabens oriented orthogonal or oblique to the extension direction; (ii simulate the simultaneous development of such half-grabens, orthogonal or oblique to the extension direction. In both cases the same materials (sand mixed with gypsum were used and the same boundary conditions were maintained. The results were compared with a natural analogue represented by the Rio do Peixe Basin (one of the eocretaceous interior basins of Northeast Brazil. The obtained models allowed to observe the development of segmented border faults with listric geometry, often forming relay ramps, and the development of inner basins faults that affect only the basal strata, like the ones observed in the seismic sections of the natural analogue. The results confirm the importance of basement tectonic heritage in the geometry of rift depocenters.

  17. Analysis and projections of physics in Chile

    International Nuclear Information System (INIS)

    In the present work, an assessment of the Physics research capacity in Chile is presented. For this, the period between 2000 and June 2005 has been studied. In this period almost 200 physicists have contributed to scientific production in terms of ISI publications. Amongst these 200, ∼160 correspond to theoretical physicists and only ∼40 to experimental physicists; ∼178 are men and only ∼22 are women. A more detailed analysis shows that ∼160 physicists have at least one appearance in ISI publications per year considering the last 3 years. Ten years ago, a similar criteria (at least one appearance per year in ISI articles, considering mobile three-year periods), the number of active physicists in the Chilean community was estimated at 70. Therefore, the Chilean active physicists' community has doubled in 10 years. There exist 20 centres in which scientific research is developed: 18 university centres, a government institute and a private institute. As regards scientific productivity, both as related to disciplines or research areas, and well as in relation to research centres, it is found that, generally, scientific production, in a particular area in Physics or in a research centre, is directly related to the number of corresponding researchers; that is to say, the percentage of the national productivity in an area or research centre corresponds to its share in the total number of physicists in the country. A geographical analysis shows that 50% of the productivity corresponds to Santiago and 50% to the rest of the country. The impact of the different funds for research is assessed, also: FONDECYT, Presidential Chairs and large projects and centres of excellence. According to Physics researchers opinion, Fondo Nacional de Ciencia y TecnologIa (FONDECYT, National Fund fro Science and Technology) has become the best instrument to support researchi activities in Chile. However, the amount of projects awarded has practically not been increased, which is

  18. Organic analogues of diluted magnetic semiconductors: bridging quantum chemistry to condensed matter physics

    Science.gov (United States)

    Furis, Madalina; Rawat, Naveen; Cherian, Judy G.; Wetherby, Anthony; Waterman, Rory; McGill, Stephen

    2015-09-01

    The selective coupling between polarized photons and electronic states in materials enables polarization-resolved spectroscopy studies of exchange interactions, spin dynamics, and collective magnetic behavior of conduction electrons in semiconductors. Here we report on Magnetic Circular Dichroism (MCD) studies of magnetic properties of electrons in crystalline thin films of small molecule organic semiconductors. Specifically, the focus was on the magnetic exchange interaction properties of d-shell ions (Cu2+, Co2+ and Mn2+) metal phthalocyanine (Pc) thin films that one may think of as organic analogues of diluted magnetic semiconductors (DMS). These films were deposited in-house using a recently developed pen-writing method that results in crystalline films with macroscopic long range ordering and improved electronic properties, ideally suited for spectroscopy techniques. Our experiments reveal that, in analogy to DMS, the extended π-orbitals of the Pc molecule mediate the spin exchange between highly localized d-like unpaired spins. We established that exchange mechanisms involve different electronic states in each species and/or hybridization between d-like orbitals and certain delocalized π-orbitals. Unprecedented 25T MCD and PL conducted in the unique 25T Split Florida HELIX magnet at the National High Magnetic Field Laboratory (NHMFL) will prove useful in probing these exchange interactions.

  19. Validity and reliability of self-assessed physical fitness using visual analogue scales

    DEFF Research Database (Denmark)

    Strøyer, Jesper; Essendrop, Morten; Jensen, Lone Donbaek; Warming, Susan; Avlund, Kirsten; Schibye, Bente

    2007-01-01

    To test the validity and reliability of self-assessed physical fitness samples included healthcare assistants working at a hospital (women=170, men=17), persons working with physically and mentally handicapped patients (women=530, men= 123), and two separate groups of healthcare students (a) women...

  20. Alligator Rivers Analogue project. Geochemistry of 239Pu, 129I, 99Tc and 36Cl

    International Nuclear Information System (INIS)

    One objective of this research programme has been to evaluate the applicability of uranium orebodies as natural analogues for testing radionuclide release-rate models used in performance assessment activities. The investigated nuclides included three of the most persistent radioactive constituents of high-level wastes from nuclear fission power reactors: plutonium-239, iodine-129, and technetium-99. The feasibility of uranium minerals as analogues for the behavior of these nuclear reaction products (NRP) in spent fuel relies upon a capability to characterise NRP concentrations in the source minerals. Measured abundances of natural 239Pu, 99Tc and 129I in uranium ores are compared to calculated abundances in order to evaluate the degree to retention of these radionuclides by the ore. This modelling study also shows the extent to which various NRP are correlated, such that one provides a constraint on the production rates of others. Under most conditions, 36Cl, another long-lived neutron-capture product found in uranium ores, is shown to be an ideal in-situ monitor of the 235U fission rate, which is the dominant source term for 129I and possibly a significant one for 99Tc. Similarly, 239Pu/U ratios can be used to establish limits on the 238U neutron-induced fission rate; the ratios measured in this study suggest that 238U induced fission comprises 129I and 99Tc. 79 refs., 21 tabs., 18 figs

  1. The physics of the Manhattan Project

    CERN Document Server

    Reed, Bruce Cameron

    2015-01-01

    The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This revised and updated 3rd edition explores the challenges that faced the scientists and engineers of the Manhattan Project. It gives a clear introduction to fission weapons at the level of an upper-year undergraduate physics student by examining the details of nuclear reactions, their energy release, analytic and numerical models of the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design. An extensive list of references and a number of exercises for self-study are included. Links are given to several freely-available spreadsheets which users can use to run many of the calculations for themselves.

  2. Collaborative Physical Chemistry Projects Involving Computational Chemistry

    Science.gov (United States)

    Whisnant, David M.; Howe, Jerry J.; Lever, Lisa S.

    2000-02-01

    The physical chemistry classes from three colleges have collaborated on two computational chemistry projects using Quantum CAChe 3.0 and Gaussian 94W running on Pentium II PCs. Online communication by email and the World Wide Web was an important part of the collaboration. In the first project, students used molecular modeling to predict benzene derivatives that might be possible hair dyes. They used PM3 and ZINDO calculations to predict the electronic spectra of the molecules and tested the predicted spectra by comparing some with experimental measurements. They also did literature searches for real hair dyes and possible health effects. In the final phase of the project they proposed a synthetic pathway for one compound. In the second project the students were asked to predict which isomer of a small carbon cluster (C3, C4, or C5) was responsible for a series of IR lines observed in the spectrum of a carbon star. After preliminary PM3 calculations, they used ab initio calculations at the HF/6-31G(d) and MP2/6-31G(d) level to model the molecules and predict their vibrational frequencies and rotational constants. A comparison of the predictions with the experimental spectra suggested that the linear isomer of the C5 molecule was responsible for the lines.

  3. Alligator Rivers Analogue project. Geochemical modelling of present-day groundwaters. Final Report - Volume 12

    International Nuclear Information System (INIS)

    The main purpose of this report is to summarize geochemical modeling studies of the present-day Koongarra groundwaters. Information on the present-day geochemistry and geochemical processes at Koongarra forms a basis for a present-day analogue for nuclear waste migration. The present-day analogue is built on studies of the mineralogy and petrology of the Koongarra deposit, and chemical analyses of present-day groundwaters from the deposit. The overall approach taken in the present study has been to carry out a series of aqueous speciation and state of saturation calculations, including chemical mass transfer calculations, to address the possible control over the chemistry of the present-day for the groundwaters at Koongarra. The most important implication of the present study for the migration of radionuclides is the strong role played by the water-rock interactions, both above and below the water table, influencing the overall chemical evolution of the groundwaters. Thus, the results show that the chemical evolution of waters is strongly controlled by the initial availability of CO2 and the mineral assemblage encountered, which together determine the major element evolution of the waters by controlling the pH. The relative rates of evolution of the pH and the oxidation state of the groundwaters are also critical to the mobility of uranium. The shallow Koongarra waters are sufficiently oxidising that they can dissolve and transport uranium even under acidic conditions. Under the more reducing condition of the deep groundwaters, is the pH level that permits uranium transport as carbonate complexes. However, if the oxidation state decreases to much lower levels, it would be expected that uranium become immobile. All the speciation and state of saturation calculations carried out in the present study are available from the author, on request

  4. Comparison of Analogue Strategies for Investigating the Influence of Counselors' Physical Attractiveness.

    Science.gov (United States)

    Zlotlow, Susan F.; Allen, George J.

    1981-01-01

    Assessed the validity of examining the influence of counselors' physical attractiveness via observation of videotapes. Reactions to audio-only and video-only videotape segments were compared with in vivo contact. In vivo contact yielded more positive impressions than videotape observations. Technical skill was more predictive of counselor…

  5. On the physical meaning of the gauge conditions of Classical Electromagnetism : the hydrodynamics analogue viewpoint

    OpenAIRE

    Rousseaux, Germain

    2003-01-01

    Based on an analogy between Fluid Mechanics and Electromagnetism, we claim that the gauge conditions of Classical Electromagnetism are not equivalent contrary to the common belief. These "gauges" are usually considered as mathematical conditions that one must specify in order to solve any electromagnetic problem. Here, the author shows that these conditions are physical constraints which can be interpreted as electromagnetic continuity equations. As a consequence, light cannot be considered a...

  6. The International Intraval Project, The Analyses of the Alligator Rivers Natural Analogue

    International Nuclear Information System (INIS)

    The Alligator Rivers study is based on work conducted at the Koongarra uranium deposit in the Alligator Rivers Region about 200 km east of Darwin, Australia.The objective was to develop a consistent picture of the processes that have controlled the transport in the weathered zone of the Koongarra ore deposit and the time scale over which they have operated. Uranium mineralisation occurs at Koongarra in two distinct but related ore bodies. Primary mineralisation in the main ore body is confined to quartz-chlorite schists and secondary uranium minerals are present from the surface down to the base of weathering at about 25 m depth and forms a tongue-like body of ore dispersing downslope for about 80 m. The primary ore body at Koongarra is estimated to be 1000 million years old and geomorphological information indicates that weathering started a few million years ago. Studies of the Alligator Rivers Natural Analogue has demonstrated that the system is very complex. The interaction of many geochemical and geohydrological processes occurring over long times makes it difficult to create a quantitative model of the history of groundwater flow and nuclide transport. The study has shown the importance of a joint interpretation of different types of data and an iterative procedure for data collection, data interpretation and modelling in order to get a consistent picture of the evolution of the site. Furthermore, it was shown that sorption is a major retardation mechanism, that uranium fixation in crystalline phases is a potentially important retardation mechanism in geologic media where significant alteration of the rock is expected, and that α-recoil may have an impact on the distribution of uranium isotopes in the water. Modelling simulations indicated migration times in fair agreement with independent geomorphological information. A general conclusion from the INTRAVAL study is that rather simple and robust concepts and models seem able to adequately describe the long

  7. Nonstationary analogue black holes

    International Nuclear Information System (INIS)

    We study the existence of analogue nonstationary spherically symmetric black holes. The prime example is the acoustic model see Unruh (1981 Phys. Rev. Lett. 46 1351). We consider also a more general class of metrics that could be useful in other physical models of analogue black and white holes. We give examples of the appearance of black holes and of disappearance of white holes. We also discuss the relation between the apparent and the event horizons for the case of analogue black holes. In the end we study the inverse problem of determination of black or white holes by boundary measurements for the spherically symmetric nonstationary metrics. (paper)

  8. Alligator Rivers analogue project: review of research and its implications for model validation

    International Nuclear Information System (INIS)

    A comprehensive study of the uranium ore bodies in the Alligator Rivers Region of the Northern Territory of Australia has been carried out during the past six years. The principal aims of the project have been (a) to collect field data from several uranium deposits, particularly the secondary mineralization dispersion fan at Koongarra, to enable radionuclide transport model codes to be developed and evaluated; and (b) to identify and quantify processes which occur on both short and geological timescales and which may be significant in the transport or retardation of radionuclides in the geosphere -examples are the behaviour of colloids, time-dependent adsorption and crystallization, and matrix diffusion. This paper presents some early conclusions from the overall program, provides details of the more recent work and recommends topics for further study. (author)

  9. Effective Teaching Methods--Project-based Learning in Physics

    Science.gov (United States)

    Holubova, Renata

    2008-01-01

    The paper presents results of the research of new effective teaching methods in physics and science. It is found out that it is necessary to educate pre-service teachers in approaches stressing the importance of the own activity of students, in competences how to create an interdisciplinary project. Project-based physics teaching and learning…

  10. Hands on CERN: A Well-Used Physics Education Project

    Science.gov (United States)

    Johansson, K. E.

    2006-01-01

    The "Hands on CERN" education project makes it possible for students and teachers to get close to the forefront of scientific research. The project confronts the students with contemporary physics at its most fundamental level with the help of particle collisions from the DELPHI particle physics experiment at CERN. It now exists in 14 languages…

  11. Project for the Institution of an Advanced Course in Physics

    Science.gov (United States)

    Teodorani, M.; Nobili, G.

    2006-06-01

    A project for an advanced course in physics at the master level, is presented in great detail. The goal of this project is to create a specific and rigorous training for those who want to carry out experimental and theoretical research on "anomalies" in physical science, especially from the point of view of atmospheric physics, plasma physics, photonic physics, biophysics, astronomy and astrophysics. A specific training in powering mental skills is planned as well. The planned teaching program is presented as a two-year course where the following subjects are intended to be taught: cognitive techniques (I and II), radiation physics (I and II), biophysics (I and II), bioastronomy (I and II), history of physics (I and II), didactics of physics, physics of atmospheric plasmas, physics of non-stationary photonic events, physics of non-linear processes, complements of quantum mechanics, quantum informatics, research methodology in physics and astronomy, computer science methods in physics and astronomy, optoelectronics, radioelectronics. Detailed teaching programs, didactics methods, and performance evaluation, are presented for each subject. The technical content of this project is preceded by an ample introduction that shows all the reasons of this kind of physics course, particularly aimed at innovation in physical science.

  12. Sport, Physical Education And Coaching in Health (SPEACH) project

    OpenAIRE

    Jong, Johan de

    2015-01-01

    Main goal of the Sport Physical Education And Coaching in Health Project (SPEACH/Erasmus+ 557083-EPP-1-2014-1-NL-SPO-SCP) is to increase awareness and behavioural change in sport professionals and European citizens towards an active and healthy lifestyle. Sedentariness and physical inactivity are a cross-national problem. Therefore, the Project builds upon a strong collaborative-partnership to contribute in solving this problem on the European level and to increase sport and physical activity...

  13. Physical Protection System Effectiveness Evaluation Project

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Whether the performance meets regulation requirements is a key point to physical protection system (PPS) of nuclear material and nuclear facility. To develop PPS effectiveness evaluation methodology and to use risk analysis based on Design Basis

  14. Particle physics and the LEP project

    International Nuclear Information System (INIS)

    A very didactic chronological account of the last 20 years of elementary particle physics is presented. After some recall on matter constituents and interactions between these constituents, some details are given on researches which will be made in LEP, the e+-e- collider

  15. The Palmottu natural analogue project. Summary report 1992-1994. The behaviour of natural radionuclides in and around uranium deposits, Nr. 8

    International Nuclear Information System (INIS)

    The Palmottu U-Th mineralization at Nummi-Pusula, southwestern Finland, has been studied as a natural analogue to deep disposal of radioactive wastes since 1988. The report gives a summary of the results of investigations carried out during the years 1992-1994. The Palmottu Analogue Project aims at a more profound understanding of radionuclide transport processes in fractured crystalline bedrock. The study includes the structural interpretations based in part on geophysical measurements, hydrological studies including hydraulic downhole measurements, flow modelling, hydrogeochemical characterization of groundwater, uranium chemistry and colloid chemistry, mineralogical studies, geochemical interpretation and modelling, including paleohydrogeological aspects, and studies of radionuclide mobilization and migration processes including numerical simulations. (121 refs., 24 figs., 8 tabs.)

  16. Physics-Based Pneumatic Hammer Instability Model Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The objective of this project is to develop a physics-based pneumatic hammer instability model that accurately predicts the stability of hydrostatic bearings...

  17. Physical Improvements in Exciter/Igniter Units Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed Phase 2 project consists of the physical integration of our Phase 1 small, compact exciter with a "flight like" igniter or spark plug capable of...

  18. Atmospheric cloud physics laboratory project study

    Science.gov (United States)

    Schultz, W. E.; Stephen, L. A.; Usher, L. H.

    1976-01-01

    Engineering studies were performed for the Zero-G Cloud Physics Experiment liquid cooling and air pressure control systems. A total of four concepts for the liquid cooling system was evaluated, two of which were found to closely approach the systems requirements. Thermal insulation requirements, system hardware, and control sensor locations were established. The reservoir sizes and initial temperatures were defined as well as system power requirements. In the study of the pressure control system, fluid analyses by the Atmospheric Cloud Physics Laboratory were performed to determine flow characteristics of various orifice sizes, vacuum pump adequacy, and control systems performance. System parameters predicted in these analyses as a function of time include the following for various orifice sizes: (1) chamber and vacuum pump mass flow rates, (2) the number of valve openings or closures, (3) the maximum cloud chamber pressure deviation from the allowable, and (4) cloud chamber and accumulator pressure.

  19. The pitchblende of Fe mine (Ciudad Rodrigo, Salamanca) as natural analogue of spent fuel behaviour (matrix I project)

    International Nuclear Information System (INIS)

    Uranium ore deposits have been extensively studied as natural analogues to the deep geological disposal of radioactive waste. These investigations constitute an essential element of both national and international research programmes applied to the assessment of geological repositories in crystalline, clayey and even in schistose rocks. The uranium ore deposit of Fe mine (Ciudad Rodrigo, Salmanca) is placed in highly fractured schistose rocks, a geological setting that has not been envisaged in ENRESA options. However, the similarities with some of the repository features and the analogies with the processes involved in the degradation of the ore deposits made advisable its study as natural analogue. The most important features are. (Author)

  20. Sport, Physical Education And Coaching in Health (SPEACH) project

    NARCIS (Netherlands)

    Jong, Johan de

    2015-01-01

    Main goal of the Sport Physical Education And Coaching in Health Project (SPEACH/Erasmus+ 557083-EPP-1-2014-1-NL-SPO-SCP) is to increase awareness and behavioural change in sport professionals and European citizens towards an active and healthy lifestyle. Sedentariness and physical inactivity are a

  1. The Compass Project: Charting a New Course in Physics Education

    CERN Document Server

    Roth, Nathaniel; Lee, Gloria; Corbo, Joel

    2012-01-01

    This article tells the story of the founding of the Compass Project at UC Berkeley and describes its impacts. The Compass Project is a self-formed group of graduate and undergraduate students in the physical sciences. Its goals are to improve undergraduate physics education, provide our members with opportunities for professional development, and increase retention of students, especially those from populations typically underrepresented in the physical sciences. Compass fosters a diverse, collaborative student community by providing a wide range of services, including a summer program, fall and spring semester courses, mentoring, a research lecture series, and other academic and social support.

  2. Project X and its connection to neutrino physics

    International Nuclear Information System (INIS)

    Project X is a new high intensity proton source that is being planned at Fermilab to usher in a new era of high intensity physics. The high intensity frontier can provide a wealth of new measurements--the most voracious consumer of protons is the long baseline neutrino program, but with the proton source upgrades being planned there are even more protons available than current neutrino targets can withstand. Those protons can provide a rich program on their own of muon physics and neutrino scattering physics that is complimentary to the long baseline program. In this article we discuss the physics motivation for Project X that comes from these short baseline experiments, and also the status of the design of this new source and what it will take to move forward on that design

  3. Project X and its connection to neutrino physics

    Energy Technology Data Exchange (ETDEWEB)

    Harris, Deborah; Jansson, Andreas; /Fermilab

    2008-10-01

    Project X is a new high intensity proton source that is being planned at Fermilab to usher in a new era of high intensity physics. The high intensity frontier can provide a wealth of new measurements--the most voracious consumer of protons is the long baseline neutrino program, but with the proton source upgrades being planned there are even more protons available than current neutrino targets can withstand. Those protons can provide a rich program on their own of muon physics and neutrino scattering physics that is complimentary to the long baseline program. In this article we discuss the physics motivation for Project X that comes from these short baseline experiments, and also the status of the design of this new source and what it will take to move forward on that design.

  4. CIEMAT results in the frame of the european project Mechanisms governing the behaviour and transport of transuranics (analogues) and other radionuclides in marine ecosystems

    International Nuclear Information System (INIS)

    This report summarises the objectives and more relevant conclusions obtained by CIEMAT in the frame of the project Mechanisms governing the behaviour and transport of transuranics (analogues) and other radionuclides in marine ecosystems. The overall objective of this project was to identify the basic mechanisms and define the key parameters governing the physico-chemical speciation, vertical and horizontal mobility, biological magnification, incorporation to seabed sediments and ultimate fate of transuranium and other long-lived radionuclides in the marine environment, with a view to providing high-quality data of a universal character for use in the development and validation of predictive models based on fundamental mechanisms rather than the simpler box-model approach. This research was carried out in different European marine ecosystems: those directly affected by controlled releases from Nuclear Industries and/or accidents and those characterized by being preferent radionuclides accumulation sites (submarine canyons, estuaries, etc.). (Author)

  5. The physics analysis tools project for the ATLAS experiment

    International Nuclear Information System (INIS)

    The Large Hadron Collider is expected to start colliding proton beams in 2009. The enormous amount of data produced by the ATLAS experiment (≅1 PB per year) will be used in searches for the Higgs boson and Physics beyond the standard model. In order to meet this challenge, a suite of common Physics Analysis Tools has been developed as part of the Physics Analysis software project. These tools run within the ATLAS software framework, ATHENA, covering a wide range of applications. There are tools responsible for event selection based on analysed data and detector quality information, tools responsible for specific physics analysis operations including data quality monitoring and physics validation, and complete analysis tool-kits (frameworks) with the goal to aid the physicist to perform his analysis hiding the details of the ATHENA framework. (authors)

  6. The Physics Interviewing Project: A Tour of Interviews in Asia

    Science.gov (United States)

    Callen, Earl; Scadron, Michael

    1978-01-01

    The project aids able students from countries that have no physics Ph.D. programs (Indonesia, Malaysia, Thailand) to obtain assistantships and Ph.D.'s abroad, assists in the technological development of those countries, and helps U.S. schools in selecting the most promising foreign candidates. (BB)

  7. Future particle-physics projects in the United States

    Energy Technology Data Exchange (ETDEWEB)

    Denisov, D. S. [Fermilab

    2015-08-25

    Basic proposals of experiments aimed at precision measurements of Standard Model parameters and at searches for new particles, including dark-matter particles, are described along with future experimental projects considered by American Physical Society at the meeting in the summer of 2013 and intended for implementation within the next ten to twenty years.

  8. Project Physics Teacher Guide 4, Light and Electromagnetism.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 4 are presented to help teachers make effective use of learning materials. Unit contents are discussed in connection with teaching aid lists, multi-media schedules, schedule blocks, and resources charts. Brief summaries are made for transparencies, 16mm films, and reader articles. Included is information…

  9. Project Physics Teacher Guide 2, Motion in the Heavens.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 2 are presented to help teachers make effective use of learning materials. The unit contents are discussed in connection with teaching aid perspectives, multi-media schedules, schedule blocks, and resource charts. Analyses are made for transparencies, 16mm films, and reader articles. Included is…

  10. Project Physics Teacher Guide 1, Concepts of Motion.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 1 are presented in this manual to help teachers make effective use of learning materials. Curriculum objectives are discussed in connection with instructional materials, suggested year time schedules, multi-media schedules, schedule blocks, resource charts, and experiment summaries. Brief analyses are…

  11. Project Physics Teacher Guide 5, Models of the Atom.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 5 are presented to help teachers make effective use of learning materials. Unit contents are discussed in connection with teaching aid lists, multi-media schedules, schedule blocks, and resource charts. Brief summaries are made for transparencies, 16mm films, and reader articles. Included is information…

  12. Project Physics Teacher Guide 3, The Triumph of Mechanics.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    Teaching procedures of Project Physics Unit 3 are presented to help teachers make effective use of learning materials. Unit contents are discussed in connection with teaching aid perspective, multi-media schedules, schedule blocks, and resource charts. Brief analyses are made for transparencies, 16mm films, and reader articles. Included is…

  13. Exploring quantum physics through hands-on projects

    CERN Document Server

    Prutchi, David

    2012-01-01

    Build an intuitive understanding of the principles behind quantum mechanics through practical construction and replication of original experiments With easy-to-acquire, low-cost materials and basic knowledge of algebra and trigonometry, Exploring Quantum Physics through Hands-on Projects takes readers step by step through the process of re-creating scientific experiments that played an essential role in the creation and development of quantum mechanics. From simple measurements of Planck's constant to testing violations of Bell's inequalities using entangled photons, Exploring Quantum Physics through Hands-on Projects not only immerses readers in the process of quantum mechanics, it provides insight into the history of the field--how the theories and discoveries apply to our world not only today, but also tomorrow. By immersing readers in groundbreaking experiments that can be performed at home, school, or in the lab, this first-ever, hands-on book successfully demystifies the world of quantum physics for...

  14. Radionuclide migration around uranium ore bodies - progress report on the Alligator rivers analogue project and proposals for future work

    International Nuclear Information System (INIS)

    The Australian Atomic Energy Commission has extensively evaluated uranium ore bodies in the Alligator Rivers Province of the Northern Territory of Australia as analogues of radioactive waste repositories. The objective has been to assist in the long-term prediction of the rate of transport of radionuclides through the geosphere. The research work was carried out by the AAEC in its laboratories at Lucas Heights and with extensive field trips in the Alligator Rivers Province, particularly at the uranium deposits at Ranger, Jabiluka, Nabarlek, and Koongarra. The results of the work over the last five years are briefly reviewed in this paper with emphasis on those obtained since the last review presented to the Natural Analogue Working Group in 1985. The results, their preliminary interpretation and their significance to the modelling and prediction of radionuclide transport, are discussed under the five main headings: Distribution of Uranium and Thorium Series Nuclides in Selected Uranium Deposits; The Role of Groundwater Colloids in the Transport of Radionuclides; The Study of Selected Fission Products; The Study of Transuranium Nuclides; and Application and Verification of Modelling Codes for the Transport of Radionuclides

  15. Advanced Ground Systems Maintenance Physics Models For Diagnostics Project

    Science.gov (United States)

    Perotti, Jose M.

    2015-01-01

    The project will use high-fidelity physics models and simulations to simulate real-time operations of cryogenic and systems and calculate the status/health of the systems. The project enables the delivery of system health advisories to ground system operators. The capability will also be used to conduct planning and analysis of cryogenic system operations. This project will develop and implement high-fidelity physics-based modeling techniques tosimulate the real-time operation of cryogenics and other fluids systems and, when compared to thereal-time operation of the actual systems, provide assessment of their state. Physics-modelcalculated measurements (called “pseudo-sensors”) will be compared to the system real-timedata. Comparison results will be utilized to provide systems operators with enhanced monitoring ofsystems' health and status, identify off-nominal trends and diagnose system/component failures.This capability can also be used to conduct planning and analysis of cryogenics and other fluidsystems designs. This capability will be interfaced with the ground operations command andcontrol system as a part of the Advanced Ground Systems Maintenance (AGSM) project to helpassure system availability and mission success. The initial capability will be developed for theLiquid Oxygen (LO2) ground loading systems.

  16. Moscow State University physics alumni and the Soviet Atomic Project

    International Nuclear Information System (INIS)

    In this paper, two closely related themes are addressed: (1) the role that M V Lomonosov Moscow State University (MSU) played in training specialists in physics for the Soviet Atomic Project, and (2) what its alumni contributed to the development of thermonuclear weapons. In its earlier stages, the Soviet Atomic Project was in acute need of qualified personnel, without whom building nuclear and thermonuclear weapons would be an impossible task, and MSU became a key higher educational institution grappled with the training problem. The first part of the paper discusses the efforts of the leading Soviet scientists and leaders of FMD (First Main Directorate) to organize the training of specialists in nuclear physics at the MSU Physics Department and, on the other hand, to create a new Physics and Technology Department at the university. As a result, a number of Soviet Government's resolutions were prepared and issued, part of which are presented in the paper and give an idea of the large-scale challenges this sphere of education was facing at the time. Information is presented for the first time on the early MSU Physics Department graduates in the structure of matter, being employed in the FMD organizations and enterprises from 1948 to 1951. The second part discusses the contribution to the development of thermonuclear weapons by the teams of scientists led by Academicians I E Tamm, A N Tikhonov, and I M Frank, and including MSU physics alumni. The paper will be useful to anyone interested in the history of Russian physics. (from the history of physics)

  17. NATURAL ANALOGUE SYNTHESIS REPORT

    International Nuclear Information System (INIS)

    The purpose of this report is to present analogue studies and literature reviews designed to provide qualitative and quantitative information to test and provide added confidence in process models abstracted for performance assessment (PA) and model predictions pertinent to PA. This report provides updates to studies presented in the Yucca Mountain Site Description (CRWMS M and O 2000 [151945], Section 13) and new examples gleaned from the literature along with results of quantitative studies conducted specifically for the Yucca Mountain Project (YMP). The intent of the natural analogue studies was to collect corroborative evidence from analogues to demonstrate additional understanding of processes expected to occur during postclosure at a potential Yucca Mountain repository. The report focuses on key processes by providing observations and analyses of natural and anthropogenic (human-induced) systems to improve understanding and confidence in the operation of these processes under conditions similar to those that could occur in a nuclear waste repository. The process models include those that represent both engineered and natural barrier processes. A second purpose of this report is to document the various applications of natural analogues to geologic repository programs, focusing primarily on the way analogues have been used by the YMP. This report is limited to providing support for PA in a confirmatory manner and to providing corroborative inputs for process modeling activities. Section 1.7 discusses additional limitations of this report. Key topics for this report are analogues to emplacement-drift degradation, waste-form degradation, waste-package degradation, degradation of other materials proposed for the engineered barrier, seepage into drifts, radionuclide flow and transport in the unsaturated zone (UZ), analogues to coupled thermal-hydrologic-mechanical-chemical processes, saturated-zone (SZ) transport, impact of radionuclide release on the biosphere

  18. The Palmottu natural analogue project. Progress report 1995. The behaviour of natural radionuclides in and around uranium deposits, Nr. 9

    International Nuclear Information System (INIS)

    Natural analogue studies at Palmottu (in Finland) have concentrated on characterising the general geological, hydrogeological and radiochemical setting of the uranium mineralisation. Since 1992 a research program focusing on the hydrogeological characterisation of potential flow routes has been in progress, and the basis for a constrained flow system has already been identified. Sophisticated studies have also been performed on groundwater redox chemistry and matrix diffusion processes. The report consists of an introduction to the activities carried out in 1995 followed by topical summaries documented by the principal investigators in charge of each activity. The following summaries are included in the report (1) Hydrogeological studies at Palmottu, (2) Modelling of groundwater flow, (3) TV-logging of boreholes, (4) Mineralogical and petrological studies, (5) Radionuclide migration studies and (6) Humic substances. Full technical and scientific results are documented in appropriate topical reports and publications referred to in this Progress Report. (46 refs., 10 figs., 4 tabs.)

  19. Physics of thermo-nuclear fusion and the ITER project

    International Nuclear Information System (INIS)

    This document gathers the slides of the 6 contributions to the workshop 'the physics of thermo-nuclear fusion and the ITER project': 1) the feasibility of magnetic confinement and the issue of heat recovery, 2) heating and current generation in tokamaks, 3) the physics of wall-plasma interaction, 4) recent results at JET, 5) inertial confinement and fast ignition, and 6) the technology of fusion machines based on magnetic confinement. This document presents the principles of thermo-nuclear fusion machines and gives a lot of technical information about JET, Tore-Supra and ITER

  20. Neutron nuclear physics under the neutron science project

    Energy Technology Data Exchange (ETDEWEB)

    Chiba, Satoshi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1997-11-01

    The concept of fast neutron physics facility in the Neutron Science Research project is described. This facility makes use of an ultra-short proton pulse (width < 1 ns) for fast neutron time-of-flight works. The current design is based on an assumption of the maximum proton current of 100 {mu}A. Available neutron fluence and energy resolution are explained. Some of the research subjects to be performed at this facility are discussed. (author)

  1. Physics in Brazil in the next decade: nuclear physics, particles and fields and interdisciplinary projects

    International Nuclear Information System (INIS)

    This book deals specially with articles in the following areas: nuclear physics, particles and fields, including as well some interdisciplinary projects, where three main brazilian upcoming laboratories are presented and discussed: the brazilian Synchrotron Light Source, the meson's factory and the Ion Implantation Laboratory. (A.C.A.S.)

  2. Physics Projects for a Future CERN-LNGS Neutrino Programme

    CERN Document Server

    Picchi, P

    1999-01-01

    We present an overview of the future projects concerning the neutrino oscillation physics in Europe. Recently a joint CERN-LNGS scientific committee has reviewed several proposals both for the study of atmospheric neutrinos and for long (LBL) and short baseline (SBL) neutrino oscillation experiments. The committee has indicated the priority that the European high energy physics community should follows in the field of neutrino physics, namely a new massive, atmospheric neutrino detector and a nu_tau appearance campaign exploiting the new CERN-LNGS Neutrino Facility (NGS), freshly approved by CERN and INFN. The sensitivity and the discovery potential of the whole experimental program in the Super-Kamiokande allowed region are discussed.

  3. Interdisciplinary physics research in the Japanese Hadron Project

    International Nuclear Information System (INIS)

    The Japanese Hadron Project (JHP) is a large future plan of interdisciplinary and international scope, aimed at basic physics research by creating and using various secondary unstable particle beams such as mesons, muons, neutrons and accelerated exotic nuclei. It comprises a high-intensity proton linac of 1 GeV, a compressor/stretcher ring and an ISOL/accelerator to deliver beams to MESON, NEUTRON and EXOTIC NUCLEI arena's. In addition, as the present ongoing project, we are pushing KAON arena based on the KEK 12 GeV proton synchrotron. The present paper describes the scientific motivation and technological bases for this future project as well as the presently going pre-JHP research activities. (author)

  4. Interdisciplinary physics research in the Japanese Hadron Project

    International Nuclear Information System (INIS)

    The Japanese Hadron Project (JHP) is a large future plan of interdisciplinary and international scope, aimed at basic physics research by creating and using various secondary unstable particle beams such as mesons, muons, neutrons and accelerated exotic nuclei. It comprises a high-intensity proton linac of 1 GeV, a compressor/stretcher ring and an ISOL/accelerator to deliver beams to MESON, NEUTRON and EXOTIC NUCLEI arena's. In addition, as the present ongoing project, we are pushing KAON arena based on the KEK 12 GeV proton synchrotron. The present paper describes the scientific motivation and technological bases for this future project as well as the presently going pre- JHP research activities

  5. [Physical projects atelier: strategy for physical resources administration learning on nursing].

    Science.gov (United States)

    Draganov, Patricia Bover; Sanna, Maria Cristina

    2011-09-01

    The success of learning involves adequate strategies. Those inspired on andragogy, which is the science of teaching adults, seem to be ideal for the nursing undergraduate subject "projects", with a focus on the administration of physical resources for nursing. This study reports teaching strategies that try to estimulate the acquisition of competences that make the nurse capable of a dialogue on projects with a multiprofessional team. The strategy involved a workshop composed by four stages: reading of projects, health assistance institute (HAI) attributions, notions on physical scaling strategies and development of a glossary. The strategy, proposed by a graduate student in the subject "Strategies to the teaching of Administration", was tested through practical application, evaluated and approved by graduate students and teachers. The conditions for its implementation are working with few students, availability of proper classrooms and equipment, and partnership with HAIs. PMID:22165412

  6. Project the day focused on physical activity and diet

    Directory of Open Access Journals (Sweden)

    Jitka Tomanová

    2016-01-01

    Full Text Available Healthy physical activity and well-balanced diet are means of maintaining and promoting health. The presented Project Day involving pupils of the 1st level of elementary school in Senice na Hané focuses on well-balanced diet and health enhancing physical activity in terms of the current educational reality. These two phenomena are inseparable. One is associated with the other, they complement each other. They are the two crucial aspects of a healthy lifestyle of each individual. Without a balanced and appropriate diet, physical activity of pupils is useless.  The main objective of the Project Day called “A sound mind in a sound body” was to, in a playful way, familiarize the pupils with basic information concerning diet and health benefits of physical activity. The aim of the initial part was to motivate the pupils for activity at various activity points. This part included a brief introduction with information about division into groups, duration at various activity points (length of activity at a specific activity point and length of transfers between activity points. The pupils were shown a short sketch, which symbolised a “clash” between the importance of diet and physical activity for humans. In their groups, the pupils were supposed to answer the principal motivation question: What is healthier for a human? Healthy food or sport? The following main part of the Project Day held on 2 December 2014 was attended by 69 pupils and was organized as group work at various thematic activity points. Each group visited all activity points. Activity point 1 was called “Agile duck-bill”, where the pupils tried out and learned about various preconditions for certain types of physical activity. The key competences involved communication, personal, social, and learning. The second activity point was called “Forest supermarket” and focused on the issue of a sedentary lifestyle. The key competences involved communication, personal, social

  7. The physics of the Manhattan Project. 3. ed.

    Energy Technology Data Exchange (ETDEWEB)

    Reed, Bruce Cameron [Alma College, MI (United States). Dept. of Physics

    2015-02-01

    The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This revised and updated 3rd edition explores the challenges that faced the scientists and engineers of the Manhattan Project. It gives a clear introduction to fission weapons at the level of an upper-year undergraduate physics student by examining the details of nuclear reactions, their energy release, analytic and numerical models of the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design. An extensive list of references and a number of exercises for self-study are included. Links are given to several freely-available spreadsheets which users can use to run many of the calculations for themselves.

  8. The physics of the Manhattan Project. 3. ed.

    International Nuclear Information System (INIS)

    The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This revised and updated 3rd edition explores the challenges that faced the scientists and engineers of the Manhattan Project. It gives a clear introduction to fission weapons at the level of an upper-year undergraduate physics student by examining the details of nuclear reactions, their energy release, analytic and numerical models of the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design. An extensive list of references and a number of exercises for self-study are included. Links are given to several freely-available spreadsheets which users can use to run many of the calculations for themselves.

  9. The SuperB factory, physics potential and project status

    Directory of Open Access Journals (Sweden)

    Wiechczynski Jaroslaw

    2012-12-01

    Full Text Available The SuperB project is an international enterprise aiming at the construction of the high-luminosity asymmetric beam energy electron-positron accelerator, which would be located in the area of Rome. It would exploit several novel features allowing to achieve an unprecedented luminosities and to collect almost a hundred times more data than the current generation of ”B factories”. As for the leptonic colliders, it will maintain a clean, low-background experimental environment that is crucial for numerous measurements on the field of high energy physics

  10. Status of the ATLAS Forward Physics (AFP) project

    Science.gov (United States)

    Chytka, Ladislav; Atlas Collaboration

    2013-04-01

    The ATLAS Forward Physics (AFP) project plans to add a set of detectors - silicon 3D pixel tracking detectors and QUARTIC time of flight detectors - in the forward region of the ATLAS experiment at the LHC. The AFP detectors will be placed around 210 m from the interaction point and are meant to detect protons produced at small angles. The detectors are to be housed in the so called Hamburg beam pipe - a movable beam pipe allowing horizontal movement of the detectors. The AFP is currently under approval with possible installation in 2014/15.

  11. Status of the ATLAS Forward Physics (AFP) Project

    CERN Document Server

    Chytka, L; The ATLAS collaboration

    2012-01-01

    The ATLAS Forward Physics (AFP) project plans to add a set of detectors --- silicon 3D pixel tracking detectors and QUARTIC time of flight detectors --- in the forward region of the ATLAS experiment at the LHC. The AFP detectors will be placed around 210 m from the interaction point and are meant to detect protons produced at small angles. The detectors are to be housed in the so called Hamburg beam pipe --- a movable beam pipe allowing horizontal movement of the detectors. The AFP is currently under approval with possible installation in 2014/15.

  12. International Reactor Physics Experiment Evaluation (IRPhE) Project

    International Nuclear Information System (INIS)

    The International Reactor Physics Experiment Evaluation (IRPhE) Project aims to provide the nuclear community with qualified benchmark data sets by collecting reactor physics experimental data from nuclear facilities, worldwide. More specifically the objectives of the expert group are as follows: - maintaining an inventory of the experiments that have been carried out and documented; - archiving the primary documents and data released in computer-readable form; - promoting the use of the format and methods developed and seek to have them adopted as a standard. For those experiments where interest and priority is expressed by member countries or working parties and executive groups within the NEA provide guidance or co-ordination in: - compiling experiments into a standard international agreed format; - verifying the data, to the extent possible, by reviewing original and subsequently revised documentation, and by consulting with the experimenters or individuals who are familiar with the experimenters or the experimental facility; - analysing and interpreting the experiments with current state-of-the-art methods; - publishing electronically the benchmark evaluations. The expert group will: - identify gaps in data and provide guidance on priorities for future experiments; - involve the young generation (Masters and PhD students and young researchers) to find an effective way of transferring know-how in experimental techniques and analysis methods; - provide a tool for improved exploitation of completed experiments for Generation IV reactors; - coordinate closely its work with other NSC experimental work groups in particular the International Criticality Safety Benchmark Evaluation Project (ICSBEP), the Shielding Integral Benchmark Experiment Data Base (SINBAD) and others, e.g. knowledge preservation in fast reactors of the IAEA, the ANS Joint Benchmark Activities; - keep a close link with the working parties on scientific issues of reactor systems (WPRS), the expert

  13. Vorticity in analogue gravity

    CERN Document Server

    Cropp, Bethan; Turcati, Rodrigo

    2015-01-01

    In the analogue gravity framework, the acoustic disturbances in a moving fluid can be described by an equation of motion identical to a relativistic scalar massless field propagating in a curved spacetime. This description is possible only when the fluid under consideration is barotropic, inviscid and irrotational. In this case, the propagation of the perturbations is governed by an acoustic metric which depends algebrically on the local speed of sound, density and the background flow velocity, the latter assumed to be vorticity free. In this work we provide an straightforward extension in order to go beyond the irrotational constraint. Using a charged --- relativistic and non-relativistic --- Bose--Einstein condensate as a physical system, we show that in the low momentum limit and performing the eikonal approximation we can derive a d'Alembertian equation of motion for the charged phonons where the emergent acoustic metric depends on a flow velocity in the presence of vorticity.

  14. Analogue MIMO Detection

    Directory of Open Access Journals (Sweden)

    McNamara Darren

    2006-01-01

    Full Text Available In this contribution we propose an analogue receiver that can perform turbo detection in MIMO systems. We present the case for a receiver that is built from nonlinear analogue devices, which perform detection in a "free-flow" network (no notion of iterations. This contribution can be viewed as an extension of analogue turbo decoder concepts to include MIMO detection. These first analogue implementations report reductions of few orders of magnitude in the number of required transistors and in consumed energy, and the same order of improvement in processing speed. It is anticipated that such analogue MIMO decoder could bring about the same advantages, when compared to traditional digital implementations.

  15. Natural Analogues of CO2 Geological Storage

    International Nuclear Information System (INIS)

    Geological storage of carbon dioxide is nowadays, internationally considered as the most effective method for greenhouse gas emission mitigation, in order to minimize the global climate change universally accepted. Nevertheless, the possible risks derived of this long-term storage have a direct influence on its public acceptance. Among the favourable geological formations to store CO2, depleted oil and gas fields, deep saline reservoirs, and unamiable coal seams are highlighted. One of the most important objectives of the R and D projects related to the CO2 geological storage is the evaluation of the CO2 leakage rate through the above mentioned geological formations. Therefore, it is absolutely necessary to increase our knowledge on the interaction among CO2, storage and sealing formations, as well as on the flow paths and the physical resistance of the sealing formation. The quantification of the CO2 leakage rate is essential to evaluate the effects on the human and animal health, as well as for the ecosystem and water quality. To achieve these objectives, the study of the natural analogues is very useful in order to know the natural leakage rate to the atmosphere, its flow paths, the physical, chemical and mineralogical modifications due to the long term interaction processes among the CO2 and the storage and sealing formations, as well as the effects on the groundwaters and ecosystems. In this report, we have tried to summarise the main characteristics of the natural reservoirs and surficial sources of CO2, which are both natural analogues of the geological storage and CO2 leakage, studied in EEUU, Europe and Australia. The main objective of this summary is to find the possible applications for long-term risk prediction and for the performance assessment by means of conceptual and numerical modelling, which will allow to validate the predictive models of the CO2 storage behaviour, to design and develop suitable monitoring techniques to control the CO2 behaviour

  16. Extreme Light Infrastructure - Nuclear Physics Eli-Np Project

    Science.gov (United States)

    Gales, S.

    2015-06-01

    The development of high power lasers and the combination of such novel devices with accelerator technology has enlarged the science reach of many research fields, in particular High energy, Nuclear and Astrophysics as well as societal applications in Material Science, Nuclear Energy and Medicine. The European Strategic Forum for Research Infrastructures (ESFRI) has selected a proposal based on these new premises called "ELI" for Extreme Light Infrastructure. ELI will be built as a network of three complementary pillars at the frontier of laser technologies. The ELI-NP pillar (NP for Nuclear Physics) is under construction near Bucharest (Romania) and will develop a scientific program using two 10 PW class lasers and a Back Compton Scattering High Brilliance and Intense Low Energy Gamma Beam , a marriage of Laser and Accelerator technology at the frontier of knowledge. In the present paper, the technical description of the facility, the present status of the project as well as the science, applications and future perspectives will be discussed.

  17. Gamification in citizen science: Projects in particle physics and synthetic biology

    OpenAIRE

    Jennett, C.; Iacovides, I.; Skands, P.; Shomar, H.; Cox, A. L.

    2013-01-01

    We present two new citizen cyberscience projects that are being developed in the research fields of Particle Physics and Synthetic Biology, and discuss several issues to be considered in relation to the gamification of these projects.

  18. Addition of a Project-Based Component to a Conventional Expository Physical Chemistry Laboratory

    Science.gov (United States)

    Tsaparlis, Georgios; Gorezi, Marianna

    2007-01-01

    Students should enjoy their laboratory classes and for this purpose a project-based activity is added to a conventional physical chemistry laboratory. Students were given project work instead of conventional experiment and then they had to make progress in the project according to instructions and then carry out experiments related to the project.

  19. "Teaching Physics as one of the humanities": The history of (harvard) project Physics, 1961-1970

    Science.gov (United States)

    Meshoulam, David

    In the United States after World War II, science had come to occupy a central place in the minds of policy makers, scientists, and the public. Negotiating different views between these groups proved a difficult task and spilled into debates over the role and scope of science education. To examine this process, this dissertation traces the history of Harvard Project Physics (HPP), a high-school physics curriculum from the 1960s that incorporated a humanistic and historical approach to teaching science. The narrative begins with the rise of General Education in the 1940s. Under the leadership of Harvard president James Conant, faculty at Harvard developed several Natural Science courses that connected science to history as a way to teach students about science and its relationship to culture. By the late 1950s this historical approach faced resistance from scientists who viewed it as misrepresenting their disciplines and called for students to learn specialized subject matter. With the support of the National Science Foundation (NSF), in the early 1960s scientists' vision of science education emerged in high-school classrooms across the country. By the mid 1960s, with the passage of the Civil Rights Act, the Elementary and Secondary Education Act, and the Daddario Amendment to the NSF, the political and education landscape began to change. These laws transformed the goals of two of the NSF and the Office of Education (USOE). These organizations faced demands to work together to develop projects that would speak to domestic concerns over equity and diversity. Their first joint educational venture was HPP. In order to succeed, HPP had to speak to the needs of disciplinary-minded scientists at the NSF, equity-minded educators at the USOE, and results-focused politicians in Congress. This work argues that HPP succeeded because it met the needs of these various stakeholders regarding the roles of science and education in American society.

  20. The alligator rivers analogue project

    International Nuclear Information System (INIS)

    The Koongarra uranium ore deposit in the Northern Territory of Australia is being studied to evaluate the processes and mechanisms involved in the hydrological/geochemical alteration of the primary uranium and model the formation of the secondary uranium mineralisation and the dispersion fan. A wide range of research is undertaken in the field and at laboratories in Australia, Japan, Sweden, the UK and the USA. The experimental and modelling tasks consider the original weathering of the region, the alteration of the host rock and primary uranium, groundwater flow and migration pathways, rock/groundwater interactions, such as adsorption desorption, nuclide transport and the relative distribution of the uranium/thorium radionuclides in the multi-phase system, and the continued development of the dispersion fan. The study of the in-situ production and mobility of long lived fission products eg Tc-99 and I-129 and transuranic nuclides such as Pu-239 is also possible. The methods used in collecting data for a repository are similar to those applied at Koongarra, hence, an analysis of the many different approaches taken may help evaluate and decrease the uncertainties of with field and laboratory measurements. (J.P.N.)

  1. Hydrogeochemistry of Groundwater as Part of the Greenland Analogue Project in an Area of Continuous Permafrost Adjacent to the Greenland Ice Sheet, Kangerlussuaq, West Greenland

    Science.gov (United States)

    Henkemans, E.; Frape, S.; Ruskeeniemi, T.; Claesson-Liljedahl, L.; Lehtinen, A.; Annable, W. K.

    2011-12-01

    Studying groundwater in areas of continuous permafrost is often limited to studies of springs and open pingos (eg. Pollard et al. 1999 and Allen et al. 1976). Boreholes in such locations are expensive, risky and logistically challenging (eg. Stotler et al. 2011) resulting in a limited understanding of the interaction between continental scale ice sheets and groundwater. Continental ice sheet models are often coupled to groundwater flow systems; however, there is a lack of modern field data with which to compare the results of models and their treatment of groundwater flow systems under the influence of glaciation. The Greenland Analogue Project (GAP) aims to eliminate some of the uncertainties in modeling ice sheets by using the Greenland ice sheet as a modern analogue for past glaciations. Since 2009, 3 boreholes have been drilled, 2 of which contain sampling systems. DH-GAP01 is a 191 m deep borehole drilled at an angle into a talik and has been sampled and studied since 2009. DH-GAP04 is a 632 m deep, angled borehole that intersects the groundwater flow system directly beneath Isunguata Sermia and is producing preliminary groundwater samples. Additional information on groundwater in the Kangerlussuaq area comes from a spring located directly in front of the Leverett ice lobe. Geochemical and isotopic (δ18O, δ2H, δ37Cl, 87Sr/86Sr, and δ34S and δ18O of SO4) tools are used to interpret geochemical processes acting on groundwaters and provide insight into groundwater flow. Analyses of δ18O and δ2H in groundwaters from DH-GAP01 show the borehole waters fall along the Global Meteoric Water Line (GMWL). Evaporation is an important process affecting the δ18O-δ2H of surface waters in the region causing lakes to plot along a local evaporation line (Leng and Anderson, 2003). The waters from the Leverett spring plot to the right of the GMWL as possibly a mixture of groundwater and surface evaporated fluids. However, both the waters from DH-GAP01 and the Leverett

  2. Status of natural analogue studies

    International Nuclear Information System (INIS)

    This report is based on the materials for the meeting at the Nuclear Safety Commission of Japan held on September 1993. Details are as follows: Alteration of glass as the study of alteration of natural minerals; alteration of uranium minerals, migration of uranium and thorium series radionuclides, alteration of chlorite, fixation of uranium alteration of minerals and migration of uranium as the study of alligator rivers analogue project held at Koongarra uranium deposit, Australia. (author)

  3. The thermoelastic properties of post-perovskite analogue phases

    OpenAIRE

    Lindsay-Scott, A.

    2011-01-01

    Post-perovskite MgSiO3 is a major component of the D'' zone at the base of the lower mantle, so knowledge of its physical properties is essential to understanding mantle dynamics. Unfortunately, MgSiO3 post-perovskite is stable only at Mbar pressures. This difficulty can be addressed by combining computer simulations with experiments on analogue post-perovskite ABX3 phases, stable at ambient pressure and temperature. In this project, the properties of MgSiO3 and other oxide and...

  4. Project T.E.A.M. (Technical Education Advancement Modules). Introduction to Industrial Physics.

    Science.gov (United States)

    Whisenhunt, James E.

    This instructional guide, one of a series developed by the Technical Education Advancement Modules (TEAM) project, is a 20-hour introduction to industrial physics that explains and demonstrates to industrial maintenance mechanics the direct relationship of physics to machinery. Project TEAM is intended to upgrade basic technical competencies of…

  5. Physics Mining of Multi-source Data Sets Project

    Data.gov (United States)

    National Aeronautics and Space Administration — We propose to implement novel physics mining algorithms with analytical capabilities to derive diagnostic and prognostic numerical models from multi-source...

  6. Physics-Based Pneumatic Hammer Instability Model Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Florida Turbine Technologies (FTT) proposes to conduct research necessary to develop a physics-based pneumatic hammer instability model for hydrostatic bearings...

  7. A project-based course about outreach in a physics curriculum

    CERN Document Server

    Bobroff, Julien

    2015-01-01

    We describe an undergraduate course where physics students are asked to conceive an outreach project of their own. The course alternates between the project conception and teachings about pedagogy and outreach, and ends in a public show. We describe its practical implementation and benefits. Through a student survey and an analysis of their projects, we discuss the merits and flaws of this "learning-by-doing" teaching approach for physics.

  8. Use of the project management methodology to establish physical protection system at nuclear facility

    International Nuclear Information System (INIS)

    The paper considers the possibility of using the project management methodology developed by the Project Management Institute (USA) in nuclear security in terms of modernization or development of physical protection system at nuclear facility. It was demonstrated that this methodology allows competent and flexible management of the projects on physical protection, ensuring effective control of their timely implementation in compliance with the planned budget and quality

  9. Atomic collision physics: A summary and some projections

    International Nuclear Information System (INIS)

    It seems that it is my task to represent the ''Collision Physics Community'' at this symposium. First, we consider the part of atomic collision physics covered at this conference, i.e., multiple electron transfer to highly charged ions, and second we consider some applications of atomic collision experiments to tests of QED

  10. Cloud physics laboratory project science and applications working group

    Science.gov (United States)

    Hung, R. J.

    1977-01-01

    The conditions of the expansion chamber under zero gravity environment were simulated. The following three branches of fluid mechanics simulation under low gravity environment were accomplished: (1) oscillation of the water droplet which characterizes the nuclear oscillation in nuclear physics, bubble oscillation of two phase flow in chemical engineering, and water drop oscillation in meteorology; (2) rotation of the droplet which characterizes nuclear fission in nuclear physics, formation of binary stars and rotating stars in astrophysics, and breakup of the water droplet in meteorology; and (3) collision and coalescence of the water droplets which characterizes nuclear fusion in nuclear physics and processes of rain formation in meteorology.

  11. Physical oceanographic investigation procedure for a sea - Outfall project

    Digital Repository Service at National Institute of Oceanography (India)

    DineshKumar, P.K.; Sarma, R.V.

    , as the waste assimilating or disposal characteristics depend upon numerous physical factors. The obvious function of a wastewater disposal installation is to convey the waste, treat it to a suitable degree before final disposal so that its effect...

  12. Contrail: A Module from Physical Chemistry On-Line Project

    Science.gov (United States)

    Chen, Franklin; Zielinski, Theresa Julia; Long, George

    2007-01-01

    The impact of contrails on Earth's climate is researched to understand the active area. It is suggested that the process of contrail formation involves combustion, cooling and ice formation, which are good comprehensive learning exercise for physical chemistry students.

  13. Physical Improvements in Exciter/Igniter Units Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed project consists of developing a prototype exciter/igniter unit that can operate to a subset of expected flight performance requirements. The main...

  14. DOE outfits two laboratories for particle-physics project

    CERN Multimedia

    Hampton, T

    2003-01-01

    Scheduled for operation in early 2005, a new facility will help researchers study elusive subatomic neutrinos by projecting a particle stream from Illinois to Minnesota - through 460 miles of solid earth (1 page).

  15. Developing outdoor physics project using the activity theory framework

    OpenAIRE

    Popov, Oleg

    2008-01-01

    This paper presents the conceptualisation, implementation and evaluation of methodology of “outdoor physics” a project in science teacher education at Umeå University, Sweden (see http://outdoorphysics.educ.umu.se). Activity Theory was used as the theoretical framework for project development. The fundamental constructs of this theory: collaborative activity, motivation, object and context of learning were taken into consideration in the development of outdoor cases and methodology of the pro...

  16. Developing outdoor physics projects using the activity theory framework

    OpenAIRE

    Popov, Oleg

    2008-01-01

    This paper presents the conceptualisation, implementation and evaluation of methodology of “outdoor physics” a project in science teacher education at Umeå University, Sweden (see http://outdoorphysics.educ.umu.se). Activity Theory was used as the theoretical framework for project development. The fundamental constructs of this theory: collaborative activity, motivation, object and context of learning were taken into consideration in the development of outdoor cases and methodolog...

  17. 3D Projection on Physical Objects: Design Insights from Five Real Life Cases

    DEFF Research Database (Denmark)

    Dalsgaard, Peter; Halskov, Kim

    2011-01-01

    have developed installations that employ 3D projection on physical objects. The installations have been developed in collaboration with external partners and have been put into use in real-life settings such as museums, exhibitions and interaction design laboratories. On the basis of these cases, we......3D projection on physical objects is a particular kind of Augmented Reality that augments a physical object by projecting digital content directly onto it, rather than by using a mediating device, such as a mobile phone or a head- mounted display. In this paper, we present five cases in which we...

  18. Nuclear and fundamental physics instrumentation for the ANS project

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, S.J. [Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics; Raman, S.; Arterburn, J.; McManamy, T.; Peretz, F.J. [Oak Ridge National Lab., TN (United States); Faust, H. [Institut Laue-Langevin, 38 - Grenoble (France); Piotrowski, A.E. [Soltan Inst. for Nuclear Studies, Otwock-Swierk (Poland)

    1996-05-01

    This report summarizes work carried out during the period 1991-1995 in connection with the refinement of the concepts and detailed designs for nuclear and fundamental physics research instrumentation at the proposed Advanced Neutron source at Oak Ridge National Laboratory. Initially, emphasis was placed on refining the existing System Design Document (SDD-43) to detail more accurately the needs and interfaces of the instruments that are identified in the document. The conceptual designs of these instruments were also refined to reflect current thinking in the field of nuclear and fundamental physics. In particular, the on-line isotope separator (ISOL) facility design was reconsidered in the light of the development of interest in radioactive ion beams within the nuclear physics community. The second stage of this work was to define those instrument parameters that would interface directly with the reactor systems so that these parameters could be considered for the ISOL facility and particularly for its associated ion source. Since two of these options involved ion sources internal to the long slant beam tube, these were studied in detail. In addition, preliminary work was done to identify the needs for the target holder and changing facility to be located in the tangential through-tube. Because many of the planned nuclear and fundamental physics instruments have similar needs in terms of detection apparatus, some progress was also made in defining the parameters for these detectors. 21 refs., 32 figs., 2 tabs.

  19. Project-based assessment for graduate coursework in physics

    OpenAIRE

    Nieminen, T. A.

    2007-01-01

    Project-based assessment, in the form of take-home exams, was trialed in an honours/masters level electromagnetic theory course. This assessment formed an integral part of the learning experience of the students, and students felt that this was effective method of learning.

  20. Project-based physics labs using low-cost open-source hardware

    OpenAIRE

    Bouquet, F.; Bobroff, J.; Fuchs-Gallezot, M.; Maurines, L.

    2016-01-01

    We describe a project-based physics lab, which we proposed to third-year university students. Theses labs are based on new open-source low-cost equipment (Arduino microcontrollers and compatible sensors) which allows a complete autonomy for the students. The students develop their own experimental setup and study the physics topic of their choice. Based on the results obtained by the students and on various surveys, we discuss how these projects let the students discover the reality of experi...

  1. Synthesis of Tonghaosu Analogues

    Institute of Scientific and Technical Information of China (English)

    SUN Hai; LIN Yingjie; WU Yulin; WU Yikang

    2009-01-01

    Several new analogues of natural antifeedant tonghaosu were synthesized via m-CPBA (m-chloroperoxybenzoic acid) oxidation of corresponding 3-(a-furyl)propanols, Luche reduction of the resulting enone, epoxidation, acid-mediated spiroketalization, and radical mediated dehydration.

  2. The GUINEVERE project for Accelerator Driven System physics

    Energy Technology Data Exchange (ETDEWEB)

    Billebaud, A.; Baylac, M.; Bondoux, D.; Bouvier, J.; Chabod, S.; De Conto, J.M.; Nuttin, A. [LPSC-CNRS-IN2P3/UJF/INPG, 53 Avenue des Martyrs. 38026 Grenoble cedex (France); Baeten, P.; Ait Abderrahim, H.; Bergmans, G.; Chetnitkov, A.; Kochetkov, A.; Vandeplassche, D.; Vermeersch, F.; Vittiglio, G. [SCK.CEN, Boeretang 200, 2400 Mol (Belgium); Ban, G.; Gautier, J.M.; Lecolley, F.R.; Lecouey, J.L.; Marie, N.; Merrer, Y.; Steckmeyer, J.C. [LPC Caen, ENSICAEN/Universite de Caen/CNRS-IN2P3, 14050 Caen (France); Dessagne, P.; Gaudiot, G.; Heitz, G.; Kerveno, M. [IPHC-DRS/UdS/CNRS-IN2P3, 67037 Strasbourg (France); Granget, G.; Mellier, F. [CEA-Cadarache, 13108 Saint Paul-lez-Durance (France); Laune, B.; Reynet, D. [IPNO, CNRS-IN2P3/UPS, 91406 Orsay (France)

    2009-06-15

    The GUINEVERE project is part of the EUROTRANS Integrated Project of the 6. EURATOM Framework Programme. It is mainly devoted to ADS on-line reactivity monitoring validation, subcriticality determination and operational procedures (loading, start-up, shut-down,..) in follow-up of the MUSE experiments. The project consists in coupling a fast lead core, set-up in the VENUS reactor at SCK.CEN Mol (B), with a GENEPI neutron source under construction by CNRS. To accommodate the accelerator in a vertical coupling configuration, the VENUS building is being heightened. The fast core will be loaded with enriched Uranium and will be moderated and reflected with solid lead (zero power experiment). For the purpose of the experimental programme, the neutron source has to be operated not only in pulsed mode but also in continuous mode to investigate the current-to-flux reactivity indicator in representative conditions of a powerful ADS. In this latter mode it is also required to make short beam interruptions to have access to the neutron population decrease as a function of time: from this spectrum it will be possible to apply different analysis techniques such as 'prompt decay' fitting techniques and 'source jerk' techniques. Beam interruptions will be repeated at a programmable frequency to improve time spectra statistics. Different sub-criticality levels (k{sub eff}=0.99, 0.97, 0.95,..) will be investigated in order to obtain a full set of data points for the final overall validation of the methodology. This paper describes the status of the experimental facility assembling, and the foreseen experimental programme to be started. (authors)

  3. Physics potential of the CERN-MEMPHYS neutrino oscillation project

    International Nuclear Information System (INIS)

    We consider the physics potential of CERN based neutrino oscillation experiments consisting of a Beta Beam (βB) and a Super Beam (SPL) sending neutrinos to MEMPHYS, a 440 kt water Cerenkov detector at Frejus, at a distance of 130 km from CERN. The θ13 discovery reach and the sensitivity to CP violation are investigated, including a detailed discussion of parameter degeneracies and systematical errors. For βB and SPL sensitivities similar to the ones of the phase II of the T2K experiment (T2HK) are obtained, where the results for the CERN-MEMPHYS experiments are less affected by systematical uncertainties. We point out that by a combination of data from βB and SPL a measurement with antineutrinos is not necessary and hence the same physics results can be obtained within about half of the measurement time compared to one single experiment. Furthermore, it is shown how including data from atmospheric neutrinos in the MEMPHYS detector allows to resolve parameter degeneracies and, in particular, provides sensitivity to the neutrino mass hierarchy and the octant of θ23. (author)

  4. Physics potential of the CERN-MEMPHYS neutrino oscillation project

    CERN Document Server

    Campagne, J E; Mezzetto, Mauro; Schwetz, T

    2007-01-01

    We consider the physics potential of CERN based neutrino oscillation experiments consisting of a Beta Beam (BB) and a Super Beam (SPL) sending neutrinos to MEMPHYS, a 440 kt water Cerenkov detector at Frejus, at a distance of 130 km from CERN. The $\\theta_{13}$ discovery reach and the sensitivity to CP violation are investigated, including a detailed discussion of parameter degeneracies and systematical errors. For BB and SPL sensitivities similar to the ones of the phase II of the T2K experiment (T2HK) are obtained, where the results for the CERN-MEMPHYS experiments are less affected by systematical uncertainties. We point out that by a combination of data from BB and SPL a measurement with antineutrinos is not necessary and hence the same physics results can be obtained within about half of the measurement time compared to one single experiment. Furthermore, it is shown how including data from atmospheric neutrinos in the MEMPHYS detector allows to resolve parameter degeneracies and, in particular, provides...

  5. Project-based physics labs using low-cost open-source hardware

    CERN Document Server

    Bouquet, F; Fuchs-Gallezot, M; Maurines, L

    2016-01-01

    We describe a project-based physics lab, which we proposed to third-year university students. Theses labs are based on new open-source low-cost equipment (Arduino microcontrollers and compatible sensors) which allows a complete autonomy for the students. The students develop their own experimental setup and study the physics topic of their choice. Based on the results obtained by the students and on various surveys, we discuss how these projects let the students discover the reality of experimental physics and how engaging these new tools are. Technical specifications of the acquisition material and case studies are also presented for practical implementation in other universities.

  6. Particle physics implications of Wilkinson microwave anisotropy project measurements

    Indian Academy of Sciences (India)

    U A Yajnik

    2004-12-01

    We present an overview of the implications of the WMAP data for particle physics. The standard parameter set and characterising the inflaton potential can be related to the power-law indices characterising deviation of the CMB spectrum from the scale invariant form. Different classes of inflation potentials are in turn naturally associated with different unified schemes. At present WMAP does not exclude any but a few simple unified models. In particular, hybrid models favoured by supersymmetric unification continue to be viable. However future improvement in data leading to better determination of the `running' of power-law indices should help to narrow the possibilities for unified models. The main conclusion is that WMAP is consistent with the paradigm of GUT scale (1016 GeV) inflation.

  7. Ultrasound exfoliation of inorganic analogues of graphene

    Czech Academy of Sciences Publication Activity Database

    Štengl, Václav; Henych, Jiří; Slušná, Michaela; Ecorchard, Petra

    2014-01-01

    Roč. 9, APR (2014), s. 1-14. ISSN 1556-276X R&D Projects: GA ČR(CZ) GA14-05146S Institutional support: RVO:61388980 Keywords : Ultrasound * Exfoliation * Graphene inorganic analogues Subject RIV: CA - Inorganic Chemistry Impact factor: 2.779, year: 2014

  8. Anthropogenic analogues for geological disposal of high level and long lived waste. Final report of a coordinated research project 1999-2004

    International Nuclear Information System (INIS)

    Human-made materials comprise important elements of the engineered barriers within the multi-barrier containment system in all concepts for the geological disposal of long lived radioactive wastes. A typical waste package consists of a metallic container for the solid waste (e.g. spent fuel or borosilicate glass in the case of high level waste, or cemented intermediate level wastes), possibly with an additional metallic over-pack to provide added protection or further corrosion resistance to the container. In the repository, waste packages are surrounded by buffer or backfill materials, such as clays, which have been subject to varying degrees of mechanical or chemical processing. Repository concepts for intermediate level wastes generally contain large volumes of cement and concrete in various applications: as a waste conditioning matrix, in boxes for waste components, as backfill between waste packages and as vault and silo structures within excavated caverns and tunnels. The long term behaviour and interactions of these materials is an important aspect of the performance of a repository, and post-closure safety assessment requires information on their durability, stability and slow degradation characteristics. Analogue information from archaeological and other anthropogenic materials can indicate the mechanisms and rates of long term corrosion of glasses and metals and of degradation of cements over hundreds or thousands of years, which can be used to constrain estimates of degradation rates over similar or longer periods. Under some circumstances it is also possible to find these materials in locations where they have interacted with natural radionuclides over long periods. This can provide useful data on how radionuclides might be sorbed or precipitated as they pass from the waste matrix into the surrounding, degrading engineered barrier system of a repository far into the future. Over the last twenty five years, many countries have gathered information on the

  9. PHYSICS

    CERN Multimedia

    P. Sphicas

    The CPT project came to an end in December 2006 and its original scope is now shared among three new areas, namely Computing, Offline and Physics. In the physics area the basic change with respect to the previous system (where the PRS groups were charged with detector and physics object reconstruction and physics analysis) was the split of the detector PRS groups (the old ECAL-egamma, HCAL-jetMET, Tracker-btau and Muons) into two groups each: a Detector Performance Group (DPG) and a Physics Object Group. The DPGs are now led by the Commissioning and Run Coordinator deputy (Darin Acosta) and will appear in the correspond¬ing column in CMS bulletins. On the physics side, the physics object groups are charged with the reconstruction of physics objects, the tuning of the simulation (in collaboration with the DPGs) to reproduce the data, the provision of code for the High-Level Trigger, the optimization of the algorithms involved for the different physics analyses (in collaboration with the analysis gr...

  10. Reengineering and health physics within the project Hanford management contract

    International Nuclear Information System (INIS)

    The impending transition of the Hartford Site management and operations (M ampersand O) contract to a management and integrating (M ampersand I) contract format, together with weak radiological performance assessments by external organizations and reduced financial budgets prompted the 're-engineering' of the previous Hanford prime contractor Radiological Control (Rad Con) organization. This paper presents the methodology, identified areas of improvements, and results of the re-engineering process. The conversion from the M ampersand O to the M ampersand I contract concept resulted in multiple independent Rad Con organizations reporting to separate major contractors who are managed by an integrating contractor. This brought significant challenges when establishing minimum site standards for sitewide consistency, developing roles and responsibilities, and maintaining site Rad Con goals. Championed by the previous contractor's Rad Con Director, Denny Newland, a five month planning effort was executed to address the challenges of the M ampersand I and to address identified weaknesses. Fluor Daniel Hanford assumed the responsibility as integrator of the Project Hanford Management Contract on October 1, 1996. The Fluor Daniel Hanford Radiation Protection Director Jeff Foster presents the results of the re-engineering effort, including the significant cost savings, process improvements, field support improvements, and clarification of roles and responsibilities that have been achieved

  11. Uncertainties in runoff projections in southwestern Australian catchments using a global climate model with perturbed physics

    Science.gov (United States)

    Barria, Pilar; Walsh, Kevin J. E.; Peel, Murray C.; Karoly, David

    2015-10-01

    Future projections of water supply under climate change scenarios are fundamental for efficient water resource planning. However, runoff projections are affected by uncertainties in the modelling process that limit their utility to decision makers. The main source of uncertainty in runoff projections are the Global Climate Models (GCMs) used to produce future climate projections. The impact on projected runoff of this uncertainty has mainly been assessed through comparison of multi-model runs of future climate with little exploration of uncertainties inside the models due to different parameterisations. Here we investigate the uncertainty response of projected runoff due to perturbed physics parameter variations within a GCM using a novel 2500 member ensemble from the HadCM3L model. Our research evaluates the uncertainties in runoff modelling for southwest Western Australia, a Mediterranean climate region which has experienced reductions in precipitation during the last decades. Results for future projections in southwest Western Australian catchments indicate reductions in modelled precipitation between 0% and 40% and increases in temperature that fluctuate between 0.5 °C and 3 °C by 2050-2080 compared to 1970-2000, which lead to reductions in projected runoff of between 10% and 80%. This range of uncertainty for projected runoff is larger than that calculated for previous estimates of within-model uncertainties of runoff. The perturbed physics approach indicates that current water management assessments underestimate uncertainties in runoff projections.

  12. Experiences of Barriers and Facilitators for Physical Activity from People with Mental Disorders who Participated in a Physical Activity Project : - An Interview Study

    OpenAIRE

    Brandt, Katarina; Loelv, Sara

    2012-01-01

    Experiences of Barriers and Facilitators for Physical Activity from People with Mental Disorders who Participated in a Physical Activity Project - An Interview Study   Purpose: To explore the experiences regarding perceived barriers and facilitators for physical activity of three participants with mental disorders who took part in the Norwegian Physical Activity Mentor project. Design and methods: Descriptive qualitative design. Individual semi-structured interviews were used for data collec...

  13. Applied Physics. Course Materials: Physics 111, 112, 113. Seattle Tech Prep Applied Academics Project.

    Science.gov (United States)

    South Seattle Community Coll., Washington.

    This publication contains materials for three courses in Applied Physics in the Applied Academics program at South Seattle Community College. It begins with the article, "Community College Applied Academics: The State of the Art?" (George B. Neff), which describes the characteristics, model, courses, and coordination activity that make up this…

  14. Fully analogue photonic reservoir computer

    Science.gov (United States)

    Duport, François; Smerieri, Anteo; Akrout, Akram; Haelterman, Marc; Massar, Serge

    2016-03-01

    Introduced a decade ago, reservoir computing is an efficient approach for signal processing. State of the art capabilities have already been demonstrated with both computer simulations and physical implementations. If photonic reservoir computing appears to be promising a solution for ultrafast nontrivial computing, all the implementations presented up to now require digital pre or post processing, which prevents them from exploiting their full potential, in particular in terms of processing speed. We address here the possibility to get rid simultaneously of both digital pre and post processing. The standalone fully analogue reservoir computer resulting from our endeavour is compared to previous experiments and only exhibits rather limited degradation of performances. Our experiment constitutes a proof of concept for standalone physical reservoir computers.

  15. Analysis model for the physical dimension in the environmental studies of electric transmission projects

    International Nuclear Information System (INIS)

    This study makes a description and analysis of the physical aspects of the environment, which are contemplated, in the environmental studies of the projects of high voltage for electric transmission lines. Its meaning and out reach are defined in this projects, in its different phases of implementation; that is in the stages of design, construction and operation, making proposals to improve the adequate incorporation of physical dimension in the environmental activities. A very important aspect, worked out in the investigation, has to do with the way as this dimension is described in the real terms of reference for EIA of the Ministry of Environment; that is why it is analysed and some elements are proposed which are to correct and to articulate properly the information in these studies, because some problems were found in the articulation and contents of the physical aspects in the studies of environmental impact (EIA). Another very important aspect, which was obtained with this research, is the methodological proposal for the integration of the components of the physical dimension in which synthesis units are defined in different scales for the integration of those components. These facts will facilitate a better understanding of the natural processes in the areas of influence of the projects and a better understanding of the reciprocal relations between the project and the physical surroundings. In the process of searching a methodology for integration of the components of the physical dimension it is hoped that the studies be more congruent from the environmental point of view

  16. INTEGRAL BENCHMARKS AVAILABLE THROUGH THE INTERNATIONAL REACTOR PHYSICS EXPERIMENT EVALUATION PROJECT AND THE INTERNATIONAL CRITICALITY SAFETY BENCHMARK EVALUATION PROJECT

    Energy Technology Data Exchange (ETDEWEB)

    J. Blair Briggs; Lori Scott; Enrico Sartori; Yolanda Rugama

    2008-09-01

    Interest in high-quality integral benchmark data is increasing as efforts to quantify and reduce calculational uncertainties accelerate to meet the demands of next generation reactor and advanced fuel cycle concepts. The International Reactor Physics Experiment Evaluation Project (IRPhEP) and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) continue to expand their efforts and broaden their scope to identify, evaluate, and provide integral benchmark data for method and data validation. Benchmark model specifications provided by these two projects are used heavily by the international reactor physics, nuclear data, and criticality safety communities. Thus far, 14 countries have contributed to the IRPhEP, and 20 have contributed to the ICSBEP. The status of the IRPhEP and ICSBEP is discussed in this paper, and the future of the two projects is outlined and discussed. Selected benchmarks that have been added to the IRPhEP and ICSBEP handbooks since PHYSOR’06 are highlighted, and the future of the two projects is discussed.

  17. Developing a project-based computational physics course grounded in expert practice

    OpenAIRE

    Burke, Christopher; Atherton, Timothy J.

    2016-01-01

    We describe a project-based computational physics course developed using a backwards course design approach. From an initial competency-based model of problem solving in computational physics, we interviewed faculty who use these tools in their own research to determine indicators of expert practice. From these, a rubric was formulated that enabled us to design a course intended to allow students to learn these skills. We also report an initial implementation of the course and, by having the ...

  18. Cobalamin analogues in humans

    DEFF Research Database (Denmark)

    Hardlei, Tore Forsingdal; Obeid, Rima; Herrmann, Wolfgang;

    2013-01-01

    BACKGROUND: Haptocorrin (HC) carries cobalamin analogues (CorA), but whether CorA are produced in the body is unknown. All cobalamins (Cbl) to the foetus are delivered by the Cbl-specific protein transcobalamin (TC), and therefore analysis of cord serum for CorA may help to clarify the origin of ......A in the human body are derived from Cbl....

  19. ACTINOMYCIN D ANALOGUES

    DEFF Research Database (Denmark)

    1997-01-01

    The present invention relates to new compounds being structurally and functionally similar to Actinomycin D and to combinatorial libraries of such compounds. The Actinomycin D analogues according to the present invention comprise two linear or cyclic peptide moieties constituted by $g...

  20. CEC natural analogue working group

    International Nuclear Information System (INIS)

    The second meeting of the CEC Natural Analogue Working Group took place on June 17-19, 1986, hosted by the Swiss NAGRA in Interlaken (CH). A review of recent progress in natural analogue programmes was carried out, and complemented by detailed discussions about geomicrobiology, archaeological analogues, natural colloids, and use of analogues to increase confidence in safety assessments for radioactive waste disposal. A statement drafted by the Group, and the presentations made, are put together in this report

  1. CEC Natural Analogue Working Group

    International Nuclear Information System (INIS)

    The central theme for the third meeting of the CEC analogue working group was ''How can analogue data be used for performance assessments, both in support of the results and for presentation to the public''. This report puts together the most recent achievements in this field, together with a review of on-going natural analogue programmes

  2. 30th International Workshop on High Energy Physics "Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects"

    CERN Document Server

    2015-01-01

    Institute for High Energy Physics (in the framework of the National Research Centre Kurchatov Institute) is organizing the XXX-th International Workshop on High Energy Physics Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects, June 23-27, 2014, in Protvino, Moscow region, Russia. The purpose of this Workshop is to exhibit a more complete and coherent picture of our understanding of the structure and dynamics of the microcosm, the megacosm and its evolution and the relationship between these two extremes of modern physics. The Workshop covers both theory and experiment/observations in most actual and critical points. We would like to promote, at the meeting, much more critical discussions than is usually the case. We strive to make the meeting not only informative but also to give it a truly working character with the aim to elaborate meaningful and clear conclusions about the actual state of affairs in the main areas of high-energy particle and ast...

  3. The Biome Project: Developing a Legitimate Parallel Curriculum for Physical Education and Life Sciences

    Science.gov (United States)

    Hastie, Peter Andrew

    2013-01-01

    The purpose of this article is to describe the outcomes of a parallel curriculum project between life sciences and physical education. Throughout a 6-week period, students in grades two through five became members of teams that represented different animal species and biomes, and concurrently participated in a season of gymnastics skills and…

  4. A Transition from a Traditional to a Project-Like Physical Chemistry Laboratory via a Heterogeneous Catalysis Study.

    Science.gov (United States)

    Goldwasser, M. R.; Leal, O.

    1979-01-01

    Outlines an approach for instruction in a physical chemistry laboratory which combines traditional and project-like experiments. An outline of laboratory experiments and examples of project-like experiments are included. (BT)

  5. Budget projections 1990, 1991, and 1992 for research in high energy nuclear physics

    International Nuclear Information System (INIS)

    Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. The committee members are: G.W. Brandenburg, M. Franklin, S. Geer, R. J. Glauber, K. Kinoshita, F. M. Pipkin, R. F. Schwitters, K. Strauch, M. E. Law, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, R.F.Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. Professor Schwitters is currently on leave of absence as Director of the Superconducting Super Collider project. In the fall of 1990 Professor G. Feldman, who is currently at SLAC, will join the Harvard faculty and become a principal investigator. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard's educational efforts are concentrated in graduate education. These budget projections cover all of the Harvard based high energy physics experimental activities. The open-quotes umbrellaclose quotes nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared equally by the experimental groups

  6. Budget projections - 1991 through 1996 for research in high energy physics

    International Nuclear Information System (INIS)

    This research program in high energy physics is carried out under the general supervision of a committee which is composed of G.W. Brandenburg, G.J. Feldman, M.E. Franklin, R.J. Glauber, K. Kinoshita, F.M. Pipkin, K. Strauch, R. Wilson, and H. Yamamoto. Professor G.J. Feldman currently serves as chair of this committee. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. In the fall of 1991 S. Mishra will join this committee. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard's educational efforts are concentrated in graduate education, where they are currently supporting thirteen research students. In addition, undergraduate students work in projects at HEPL during the academic year and over summers. These budget projections cover all of the Harvard based high energy physics experimental activities. The open-quotes umbrellaclose quotes nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared proportionally by the experimental groups. Harvard financially supports this high energy physics research program in many ways

  7. Budget projections 1990, 1991, and 1992 for research in high energy nuclear physics

    Energy Technology Data Exchange (ETDEWEB)

    1990-05-01

    Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. The committee members are: G.W. Brandenburg, M. Franklin, S. Geer, R. J. Glauber, K. Kinoshita, F. M. Pipkin, R. F. Schwitters, K. Strauch, M. E. Law, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, R.F.Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. Professor Schwitters is currently on leave of absence as Director of the Superconducting Super Collider project. In the fall of 1990 Professor G. Feldman, who is currently at SLAC, will join the Harvard faculty and become a principal investigator. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard`s educational efforts are concentrated in graduate education. These budget projections cover all of the Harvard based high energy physics experimental activities. The {open_quotes}umbrella{close_quotes} nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared equally by the experimental groups.

  8. Budget projections - 1991 through 1996 for research in high energy physics

    Energy Technology Data Exchange (ETDEWEB)

    1991-05-01

    This research program in high energy physics is carried out under the general supervision of a committee which is composed of G.W. Brandenburg, G.J. Feldman, M.E. Franklin, R.J. Glauber, K. Kinoshita, F.M. Pipkin, K. Strauch, R. Wilson, and H. Yamamoto. Professor G.J. Feldman currently serves as chair of this committee. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. In the fall of 1991 S. Mishra will join this committee. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard`s educational efforts are concentrated in graduate education, where they are currently supporting thirteen research students. In addition, undergraduate students work in projects at HEPL during the academic year and over summers. These budget projections cover all of the Harvard based high energy physics experimental activities. The {open_quotes}umbrella{close_quotes} nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared proportionally by the experimental groups. Harvard financially supports this high energy physics research program in many ways.

  9. Natural analogue working group

    International Nuclear Information System (INIS)

    A Natural Analogue Working Group was established by the Commission of the European Communities in 1985. The purpose of this group is to bring together modellers with earth scientists and others, so that maximum benefit can be obtained from natural analogue studies with a view to safe geological disposal of radioactive waste. The first meeting of this group was held in Brussels from November 5 to 7, 1985. The discussions mainly concerned the identification of the modellers' needs and of the earth scientists' capacity to provide for them. Following the debates, a written statement was produced by the Group; this document forms the core of the present Report. Notes and outlines of many of the presentations made are grouped in four appendixes. The valuable contribution of all those involved in the meeting is gratefully acknowledged

  10. Gastric inhibitory polypeptide analogues

    DEFF Research Database (Denmark)

    Holst, Jens Juul

    2002-01-01

    and its analogues are attractive as therapeutic agents for type 2 diabetes mellitus, analogues of GIP are unlikely to be effective. On the other hand, GIP seems to play an important role in lipid metabolism, promoting the disposal of ingested lipids, and mice with a targeted deletion of the GIP...... of GIP and GLP-1 receptors, the incretin effect is essential for normal glucose tolerance. In patients with type 2 diabetes mellitus it turns out that the incretin effect is severely impaired or abolished. The explanation seems to be that both the secretion of GLP-1 and the effect of GIP are impaired...... (whereas both the secretion of GIP and the effect of GLP-1 are near normal). The impaired GLP-1 secretion is probably a consequence of diabetic metabolic disturbances. The known genetic variations in the GIP receptor sequence are not associated with type 2 diabetes mellitus, but a defective insulinotropic...

  11. Aspartame and Its Analogues

    Science.gov (United States)

    Pavlova, L. A.; Komarova, T. V.; Davidovich, Yurii A.; Rogozhin, S. V.

    1981-04-01

    The results of studies on the biochemistry of the sweet taste are briefly reviewed. The methods of synthesis of "aspartame" — a sweet dipeptide — are considered, its structural analogues are described, and quantitative estimates are made of the degree of sweetness relative to sucrose. Attention is concentrated mainly on problems of the relation between the structure of the substance and its taste in the series of aspartyl derivatives. The bibliography includes 118 references.

  12. A project-based course about outreach in a physics curriculum

    Science.gov (United States)

    Bobroff, Julien; Bouquet, Frédéric

    2016-07-01

    We describe an undergraduate course where physics students are asked to conceive an outreach project of their own. This project-based-learning course alternates between the project conception and teaching activities about outreach. It ends in a public show. Students decide the topic and format on their own. An analysis of the students’ productions over three years shows that all physics fields were equally covered, and various formats were used (experimental devices, animation or fiction movies, games, live events, photography). Some typical examples are described. We also analyse the benefits of this approach from the students’ perspective, through a survey done over three classes. Students showed an overall very good assessment of the course (average of 4.5(0.6) on an appreciation scale from 1 to 5) and recognised having developed outreach skills but also project-management and group-work know-how. They acknowledged this course to be a unique opportunity to share with an audience their interest in physics compared to other courses. They further mentioned that it served as an intermission in a classical academic curriculum. They also point out some challenges, especially the time-consuming issue. This survey together with the practical description of the course implementation should help other universities develop similar courses.

  13. Budget projections 1989, 1990, and 1991 for research in high energy nuclear physics

    Energy Technology Data Exchange (ETDEWEB)

    1989-05-01

    Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. The committee members are: G.W. Brandenburg, S. Geer, R.J. Glauber, K. Kinoshita, R. Nickerson, F.M. Pipkin, R.F. Schwitters, M. Shapiro, K. Strauch, R. Vanelli, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, R.F. Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. Professor Schwitters is currently on leave of absence as Director of the Superconducting Super Collider project. In the fall of 1990 Professor G. Feldman, who is currently at SLAC, will join the Harvard faculty and become a principal investigator. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world. Harvard`s educational efforts are concentrated in graduate education, where they are currently supporting 15 research students. These budget projections cover all of the Harvard based high energy physics experimental activities. The {open_quotes}umbrella{close_quotes} nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared equally by the experimental groups.

  14. Relational Quadrilateralland. Analogues of Isospin and Hypercharge

    OpenAIRE

    Anderson, Edward

    2012-01-01

    I consider the momenta and conserved quantities for CP^2 interpreted as the space of quadrilaterals. This builds on seminar I and II's kinematics via making use of MacFarlane's work considering the SU(3)-like (and thus particle physics-like) conserved quantities that occur for CP^2. I perform the additional step of further interpreting that as the configuration space of all relational quadrilaterals and thus an interesting toy model for whole-universe, relational and geometrodynamical-analogu...

  15. Analogue memories for high speed detectors signals

    CERN Document Server

    Caponetto, L H

    2000-01-01

    An analogue memory chip family has been developed as a switched capacitor cell array. The family is an ongoing prototyping project within the readout system of the silicon drift detectors for the Inner Tracker System of the ALICE experiment. All chips consist of several capturing channels whose cells number is varying within the family. Chips design choices and performances are briefly discussed here. (5 refs).

  16. International Reactor Physics Experiment Evaluation (IRPhE) Project. IRPhE Handbook - 2015 edition

    International Nuclear Information System (INIS)

    The purpose of the International Reactor Physics Experiment Evaluation (IRPhE) Project is to provide an extensively peer-reviewed set of reactor physics-related integral data that can be used by reactor designers and safety analysts to validate the analytical tools used to design next-generation reactors and establish the safety basis for operation of these reactors. This work of the IRPhE Project is formally documented in the 'International Handbook of Evaluated Reactor Physics Benchmark Experiments', a single source of verified and extensively peer-reviewed reactor physics benchmark measurements data. The evaluation process entails the following steps: Identify a comprehensive set of reactor physics experimental measurements data, Evaluate the data and quantify overall uncertainties through various types of sensitivity analysis to the extent possible, verify the data by reviewing original and subsequently revised documentation, and by talking with the experimenters or individuals who are familiar with the experimental facility, Compile the data into a standardized format, Perform calculations of each experiment with standard reactor physics codes where it would add information, Formally document the work into a single source of verified and peer reviewed reactor physics benchmark measurements data. The International Handbook of Evaluated Reactor Physics Benchmark Experiments contains reactor physics benchmark specifications that have been derived from experiments that were performed at nuclear facilities around the world. The benchmark specifications are intended for use by reactor designers, safety analysts and nuclear data evaluators to validate calculation techniques and data. Example calculations are presented; these do not constitute a validation or endorsement of the codes or cross-section data. The 2015 edition of the International Handbook of Evaluated Reactor Physics Benchmark Experiments contains data from 143 experimental series that were

  17. Global Threat Reduction Initiative Fuel Thermo-Physical Characterization Project: Sample Management Plan

    Energy Technology Data Exchange (ETDEWEB)

    Casella, Amanda J.; Pereira, Mario M.; Steen, Franciska H.

    2013-01-01

    This sample management plan provides guidelines for sectioning, preparation, acceptance criteria, analytical path, and end-of-life disposal for the fuel element segments utilized in the Global Threat Reduction Initiative (GTRI), Fuel Thermo-Physical Characterization Project. The Fuel Thermo-Physical Characterization Project is tasked with analysis of irradiated Low Enriched Uranium (LEU) Molybdenum (U-Mo) fuel element samples to support the GTRI conversion program. Sample analysis may include optical microscopy (OM), scanning electron microscopy (SEM) fuel-surface interface analysis, gas pycnometry (density) measurements, laser flash analysis (LFA), differential scanning calorimetry (DSC), thermogravimetry and differential thermal analysis with mass spectroscopy (TG /DTA-MS), Inductively Coupled Plasma Spectrophotometry (ICP), alpha spectroscopy, and Thermal Ionization Mass Spectroscopy (TIMS). The project will utilize existing Radiochemical Processing Laboratory (RPL) operating, technical, and administrative procedures for sample receipt, processing, and analyses. Test instructions (TIs), which are documents used to provide specific details regarding the implementation of an existing RPL approved technical or operational procedure, will also be used to communicate to staff project specific parameters requested by the Principal Investigator (PI). TIs will be developed, reviewed, and issued in accordance with the latest revision of the RPL-PLN-700, RPL Operations Plan. Additionally, the PI must approve all project test instructions and red-line changes to test instructions.

  18. The Numerical Multi-Physics project (NUMPS) at VTT Technical Research Centre of Finland

    International Nuclear Information System (INIS)

    Highlights: • The Numerical Multi-Physics (NUMPS) project was initiated at VTT in 2012. • The project aims to develop high-fidelity calculation methods for reactor analysis. • Internal and external coupling of neutronics, thermal hydraulics and fuel behavior. • Focus is on calculation codes developed at VTT: Serpent 2, PORFLO, COSY, FINIX. - Abstract: The four-year Numerical Multi-Physics (NUMPS) project funded by the Academy of Finland was initiated at VTT Technical Research Centre of Finland in September 2012, for the purpose of studying and developing high-fidelity computational methods for nuclear reactor analysis. The project is built around calculation codes developed at VTT, and it aims at the coupled three-dimensional modeling of neutronics, thermal hydraulics and fuel behavior of nuclear reactors. The work involves the continuous-energy Monte Carlo code Serpent and CFD code PORFLO, together with two light-weight solvers, COSY and FINIX, coupled to Serpent at source code level. This paper is a review on the current status and development activities, reflecting the status of the NUMPS project at the beginning of its second complete year

  19. Developing a project-based computational physics course grounded in expert practice

    CERN Document Server

    Burke, Christopher

    2016-01-01

    We describe a project-based computational physics course developed using a backwards course design approach. From an initial competency-based model of problem solving in computational physics, we interviewed faculty who use these tools in their own research to determine indicators of expert practice. From these, a rubric was formulated that enabled us to design a course intended to allow students to learn these skills. We also report an initial implementation of the course and, by having the interviewees regrade student work, show that students acquired many of the expert practices identified.

  20. New horizons for extreme light physics with mega-science project XCELS

    International Nuclear Information System (INIS)

    A short review of the Russian mega-science project XCELS and scientific problems to be solved are presented. We discuss the origin of multi-beam design to attain the highest field magnitude at optimal focusing. Then, we formulate particular physical problems of fundamental interest that can be solved within this project. They include new regimes of single particle motions mostly due to the radiation reaction force (RR) effects when efficient gamma ray generation occurs, new regimes of non-linear electrodynamics, as well as QED resulting in highly efficient plasma converter for gamma rays, and probing non-perturbative QED with dipole or superluminal atto-second pulses

  1. Evaluating seismology-based curriculum for use in high school physical science and physics classes as a part of the South Carolina Earth Physics Project (SCEPP)

    Science.gov (United States)

    Bartholomew, James Walter, Jr.

    The South Carolina Earth Physics Project (SCEPP) has created a set of Inquiry-based learning modules utilizing the Learning Cycle Method of instruction. In addition software entitled the Global Earthquake Explorer (GEE) has been developed for use with the modules and as a tool to explore worldwide seismic activity. Modules are intended for use in either high school 9th grade physical science or 12th grade physics classes. The modules integrate wave phenomenon concepts normally taught in a physical science class with concepts and real world examples from seismology. The modules created make use of a statewide seismic network and the advance GEE software in order to allow students to access actual seismic data in near real time. Teachers from across the state reviewed the modules as apart of a professional development program and through a focus group discussion. Teachers see SCEPP as a valuable resource that effectively engages students in science, requires the student to use skills from several disciplines simultaneously, and helps students understand the interdisciplinary nature of science. The modules and associated software were subjected to rigorous field-testing in science classes across South Carolina. Studies conducted in 2001 and 2002 utilizing a pre-test, post-test design showed that students were able to use the modules and GEE effectively. A third study was conducted in 2003 that utilized both a treatment and control group in its design. This study was an attempt to quantify the amount of cognitive subject matter gain and any attitude changes in students toward science from exposure to the SCEPP materials but was not successful. Improper implementation of the modules appeared to have negated any positive effects SCEPP had with students. The project was able to gain valuable information for how to properly implement the modules with implications for how science may be better taught in K--12 schools.

  2. Social network analysis of a project-based introductory physics course

    Science.gov (United States)

    Oakley, Christopher

    2016-03-01

    Research suggests that students benefit from peer interaction and active engagement in the classroom. The quality, nature, effect of these interactions is currently being explored by Physics Education Researchers. Spelman College offers an introductory physics sequence that addresses content and research skills by engaging students in open-ended research projects, a form of Project-Based Learning. Students have been surveyed at regular intervals during the second semester of trigonometry-based course to determine the frequency of interactions in and out of class. These interactions can be with current or past students, tutors, and instructors. This line of inquiry focuses on metrics of Social Network analysis, such as centrality of participants as well as segmentation of groups. Further research will refine and highlight deeper questions regarding student performance in this pedagogy and course sequence.

  3. Physics and present status of the GSI-SIS/ESR project

    International Nuclear Information System (INIS)

    The author describes the relativistic heavy ion projects at the GSI Darmstadt. After a short description of the accelerator facilities the study of intermediate-energy heavy ion reactions, the production of radioactive ion beams, and some proposed nuclear physics experiments are discussed. Finally the production of a crystalline beam structure by cooling beams of highly stripped high Z ions is briefly considered together with applications to high precision mass measurement and laser spectroscopy. (HSI)

  4. Archaeological analogues and corrosion

    International Nuclear Information System (INIS)

    One solution retained for the management of high-level and long living radioactive wastes is the disposal in deep underground. Among the studies carried out by the Andra for the evaluation this solution, one concerns the research on metals corrosion for the development of reliable containers. Laboratory corrosion tests are in progress and are compared to the corrosion state of archaeological metal specimens of several hundred years old. Gallic or Mesopotamian remnants are some of these archaeological analogues which are analyzed using the most advanced techniques of materials science. (J.S.)

  5. LWR multi-physics developments and applications within the framework of the NURESIM European project

    International Nuclear Information System (INIS)

    The overall objective of the NURESIM Multi-Physics sub-project (NURESIM-MP) activities is to integrate the simulation tools developed within the NURESIM Core Physics sub-project (NURESIM-CP), with the simulation tools developed within the NURESIM Thermal-Hydraulics sub-project (NURESIM-TH), to complete the European software platform and enable coupled neutron-kinetics/thermal- hydraulics transient simulations of operational and design basis accident conditions for existing LWR's (PWR, BWR, VVER). The first NURESIM-MP developments are described and the first, proof-of-principle, applications to multi-physics and multi-scale problems using the European codes CRONOS2, FLICA4 and COBAYA3 are presented and discussed. Thus, a coupled N/TH application using the CEA codes CRONOS2 and FLICA4 was developed using the advanced multi-physics functionalities of the SALOME software, on which the architecture of the European platform will be based. The coupling application includes a mesh-to-mesh interpolation tool that was developed in order to allow coupling N and TH solvers using non identical three-dimensional meshing schemes. A generic Application Programming Interface was also developed to allow for a flexible manipulation and coupling of different solvers, which is a prerequisite for the development of complex multi-physics calculation routes. The first exercise applies a N/TH coupling of CRONOS2 and FLICA4 inside the SALOME-based platform for the analysis of a test case derived from the NEA-OECD PWR MSLB Benchmark. The second exercise applies the COBAYA3 core 3D fine-mesh multi-group neutron diffusion solver using a domain decomposition method, which allows for an efficient parallel implementation in memory distributed multi-processors. (authors)

  6. Impact of the changes in the chemical composition of pore water on chemical and physical stability of natural clays. A review of natural cases and related laboratory experiments and the ideas on natural analogues for bentonite erosion/non-erosion

    International Nuclear Information System (INIS)

    A scientific literature survey was compiled with the specific objective to find information for smectite mobilization and/or retention in natural clay formations caused by contact with water with low ionic concentrations such as can be expected during and after an ice age. Evidence was sought if smectite particles are lost from the clay to the water and if accessory minerals that remain could form a growing filter slowing down or stopping further loss of smectite. Bentonites are present in geological layers for hundreds of millions of years. There is limited exchange with surrounding layers, eg K transported into the bentonite layer from surrounding shale layers leading to the increased illite % in smectite-illite of the bentonite. Another process is silicification of surrounding layers leading to lowered permeability of surrounding rocks. Geological literature data on historical bentonites do not consider colloid formation in low ionic strength water as relevant mechanism for smectite mobilization. However there are no studied cases where this could be a relevant mechanism (as proposed by colloid release scenario). Soil researchers have studied the mechanism of colloid release in laboratory experiments and have found that there has to be an abrupt change in infiltrating water quality leading to 'osmotic explosion'. Clogging the pores in the lower part of the soil column has followed, leading to dramatic decrease of hydraulic conductivity in vertical profile and increased surface runoff. So, although limited, there are literature evidences of clay colloids release from bentonites/smectites caused by low-ionic circumneutral water. The geological settings to look for natural analogue studies include (1) Bentonite/smectite similar to what is used in repository. (2) Water similar to the composition of glacial meltwater. (3) Scenario similar to what is proposed in the bentonite erosion project. The problem related to the study of historical bentonite profiles is the

  7. Impact of the changes in the chemical composition of pore water on chemical and physical stability of natural clays. A review of natural cases and related laboratory experiments and the ideas on natural analogues for bentonite erosion/non-erosion

    Energy Technology Data Exchange (ETDEWEB)

    Puura, Erik (Eridicon OUe, Tartu (Estonia)); Kirsimaee, Kalle (Univ. of Tartu, Inst. of Ecology and Earth Sciences, Tartu (Estonia))

    2010-01-15

    A scientific literature survey was compiled with the specific objective to find information for smectite mobilization and/or retention in natural clay formations caused by contact with water with low ionic concentrations such as can be expected during and after an ice age. Evidence was sought if smectite particles are lost from the clay to the water and if accessory minerals that remain could form a growing filter slowing down or stopping further loss of smectite. Bentonites are present in geological layers for hundreds of millions of years. There is limited exchange with surrounding layers, eg K transported into the bentonite layer from surrounding shale layers leading to the increased illite % in smectite-illite of the bentonite. Another process is silicification of surrounding layers leading to lowered permeability of surrounding rocks. Geological literature data on historical bentonites do not consider colloid formation in low ionic strength water as relevant mechanism for smectite mobilization. However there are no studied cases where this could be a relevant mechanism (as proposed by colloid release scenario). Soil researchers have studied the mechanism of colloid release in laboratory experiments and have found that there has to be an abrupt change in infiltrating water quality leading to 'osmotic explosion'. Clogging the pores in the lower part of the soil column has followed, leading to dramatic decrease of hydraulic conductivity in vertical profile and increased surface runoff. So, although limited, there are literature evidences of clay colloids release from bentonites/smectites caused by low-ionic circumneutral water. The geological settings to look for natural analogue studies include (1) Bentonite/smectite similar to what is used in repository. (2) Water similar to the composition of glacial meltwater. (3) Scenario similar to what is proposed in the bentonite erosion project. The problem related to the study of historical bentonite profiles

  8. Challenges and opportunities for atomic physics at FAIR: The new GSI accelerator project

    Energy Technology Data Exchange (ETDEWEB)

    Hagmann, S. [Institut f. Kernphysik, University of Frankfurt (Germany) and GSI, Max Planckstr.1, Darmstadt (Germany)]. E-mail: s.hagmann@gsi.de; Beyer, H.F. [GSI, Max Planckstr.1, Darmstadt (Germany); Bosch, F. [GSI, Max Planckstr.1, Darmstadt (Germany); Braeuning-Demian, A. [GSI, Max Planckstr.1, Darmstadt (Germany); Kluge, H.-J. [GSI, Max Planckstr.1, Darmstadt (Germany); Kozhuharov, Ch. [GSI, Max Planckstr.1, Darmstadt (Germany); Kuehl, Th. [GSI, Max Planckstr.1, Darmstadt (Germany); Liesen, D. [GSI, Max Planckstr.1, Darmstadt (Germany); Stoehlker, Th. [GSI, Max Planckstr.1, Darmstadt (Germany); Ullrich, J. [Max Planck Inst. f. Kernphysik, Heidelberg (Germany); Moshammer, R. [Max Planck Inst. f. Kernphysik, Heidelberg (Germany); Mann, R. [GSI, Max Planckstr.1, Darmstadt (Germany); Mokler, P. [GSI, Max Planckstr.1, Darmstadt (Germany); Quint, W. [GSI, Max Planckstr.1, Darmstadt (Germany); Schuch, R. [Department of Physics, University of Stockholm (Sweden); Warczak, A. [Department of Physics, University of Cracow (Poland)

    2005-12-15

    We present a short overview of the current status of the new accelerator project FAIR at GSI with the new double synchrotron rings and the multi-storage rings. The key features of the new facility, which provides intense relativistic beams of stable and unstable nuclei, are introduced and their relation to the anticipated experimental programs in nuclear structure physics and antiproton physics is shown. The main emphasis in this overview is given to the atomic physics program with unique opportunities which will be provided e.g. by bare U{sup 92+} ions with kinetic energies continuously variable between relativistic energies corresponding to {gamma} up to {approx_equal}35 down to kinetic energies of such ions in traps corresponding to fractions of a Kelvin.

  9. Physical and cognitive stimulation in Alzheimer Disease. the GAIA Project: a pilot study.

    Science.gov (United States)

    Maci, Tiziana; Pira, Francesco Le; Quattrocchi, Graziella; Nuovo, Santo Di; Perciavalle, Vincenzo; Zappia, Mario

    2012-03-01

    Several data suggest that physical activity and cognitive stimulation have a positive effect on the quality of life (QoL) of people with Alzheimer's disease (AD), slowing the decline due to the disease. A pilot project was undertaken to assess the effect of cognitive stimulation, physical activity, and socialization on patients with AD and their informal caregiver's QoL and mood. Fourteen patients with AD were randomly divided into active treatment group and control group. At the end of treatment, a significant improvement in apathy, anxiety, depression, and QoL in the active treatment group was found. Considering caregivers, those of the active treatment group exhibited a significant improvement in their mood and in their perception of patients' QoL. This study provides evidence that a combined approach based on cognitive stimulation, physical activity, and socialization is a feasible tool to improve mood and QoL in patients with AD and their caregivers. PMID:22495338

  10. Budget projections 1988, 1989, and 1990 for research in high energy nuclear physics

    Energy Technology Data Exchange (ETDEWEB)

    1988-04-01

    Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. Professor R.F. Schwitters is currently chairman of this committee. The committee members are: G.W. Brandenburg, S. Geer, R.J. Glauber, K. Kinoshita, R. Nickerson, F.M. Pipkin, J. Rohlf, C. Rubbia, R.F. Schwitters, M. Shapiro, K. Strauch, R. Vanelli, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, C. Rubbia, R.F. Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg (Associate Director, High Energy Physics Laboratory) administers the High Energy Physics Laboratory and is in charge of the Computer Facility. Professor Rubbia is currently on leave of absence and will leave Harvard on December 31, 1988 to become the Director General of CERN. A reduced UA1 effort will remain at Harvard after Professor Rubbia`s departure. Harvard is planning to make one or two senior faculty appointments in experimental high energy physics sometime in 1988-89. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard`s educational efforts are concentrated in graduate education, where they are currently supporting 15 research students. In addition, undergraduate students work in projects at HEPL during the academic year and over summers. Many of these students have gone on to graduate school studying physics at Harvard and elsewhere.

  11. Radiolabeled somatostatin analogues

    International Nuclear Information System (INIS)

    Somatostatin is a naturally occurring tetradecapeptide that inhibits the secretion of many hormones. Large numbers of binding sites with high affinity for somatostatin have been reported in a variety of tumors. An octapeptide analogue of somatostatin, octreotide (Sandostatin), is currently used in the treatment of patients with somatostatin receptor-positive tumors to limit hormonal hyper secretion. In an effort to utilize the high specificity of octreotide for scintigraphic imaging of somatostatin receptor-positive tumors, a tyrosine derivative of octreotide was prepared and labeled with the radioactive isotope, I-123. While the early clinical results obtained with this radiopharmaceutical were encouraging, the I-123 labeling procedure proved cumbersome and variable. To circumvent these difficulties, researchers at University Hospital Rotterdam (Holland) and Sandoz Research Institute (Switzerland) developed an In-111 labeled analogue of octreotide. This radiopharmaceutical is easy to prepare and has proven to be even more effective than the I-123 derivative in the scintigraphic imaging of tumors. These radiopharmaceutical developments and clinical observations are discussed in light of their relevance to the generation of new radiolabeled peptides for the diagnosis and potential radiotherapy of cancer. (authors). 30 refs., 5 figs

  12. The Education and Outreach Project of ATLAS - A New Participant in Physics Education

    International Nuclear Information System (INIS)

    The ATLAS experiment at the Large Hadron Collider at CERN has a substantial collaborative Education and Outreach project. This article describes its activities and how it promotes physics to students around the world. With the extraordinary possibility to make groundbreaking discoveries, the ATLAS Experiment [1] at the Large Hadron Collider at CERN can play an important role in promoting contemporary physics at school. For many years ATLAS has had a substantial collaborative Education and Outreach (E and O) project in which physicists from various parts of the world take part. When the experiment begins in 2007, students from around the world will be analyzing data using cutting-edge technology. The unprecedented collision energies of the Large Hadron Collider allow ATLAS to decode the 'events' that unfold after the head-on collisions of protons (Fig. 1). The scientific results from these events will reveal much about the basic nature of matter, energy, space, and time. Students and others will be excited as they try to find events that may be signs for dark matter, extra dimensions of space, mini-black holes, string theory, and other fundamental discoveries. Science education and outreach and the promotion of awareness and appreciation of physics research have become important tasks for the research community and should be recognized as a natural and logical part of science research and as an important link between research and society. To be successful these activities have to be done in a systematic and professional way. Leading scientists together with multimedia experts can form a powerful team with teachers and educators in disseminating physics information to school and universities. The ATLAS collaboration has fully recognized the importance of education and outreach. The ATLAS E and O project can be a model for today's large science experiments in promoting science at schools and universities

  13. Confirmation via Analogue Simulation: A Bayesian Analysis

    CERN Document Server

    Dardashti, Radin; Thebault, Karim P Y; Winsberg, Eric

    2016-01-01

    Analogue simulation is a novel mode of scientific inference found increasingly within modern physics, and yet all but neglected in the philosophical literature. Experiments conducted upon a table-top 'source system' are taken to provide insight into features of an inaccessible 'target system', based upon a syntactic isomorphism between the relevant modelling frameworks. An important example is the use of acoustic 'dumb hole' systems to simulate gravitational black holes. In a recent paper it was argued that there exists circumstances in which confirmation via analogue simulation can obtain; in particular when the robustness of the isomorphism is established via universality arguments. The current paper supports these claims via an analysis in terms of Bayesian confirmation theory.

  14. Studies of natural analogues and geological systems

    International Nuclear Information System (INIS)

    This review has involved studies of natural analogues and natural geological systems leading to the identification and quantification of processes and features of importance to the performance and safety of repositories for radioactive waste. The features and processes selected for the study comprise general geochemical issues related to the performance of the near- and far-field, the performance and durability of construction materials and the effects of glaciation. For each of these areas a number of potentially important processes for repository performance have been described, and evidence for their existence, as well as quantification of parameters of models describing the processes have been sought from major natural analogue studies and site investigations. The review has aimed at covering a relatively broad range of issues at the expense of in-depth analysis. The quantitative data presented are in most cases compilations of data from the literature; in a few cases results of evaluations made within the current project are included

  15. Analogue gravitational phenomena in Bose-Einstein condensates

    CERN Document Server

    Finazzi, Stefano

    2012-01-01

    Analogue gravity is based on the simple observation that perturbations propagating in several physical systems can be described by a quantum field theory in a curved spacetime. While phenomena like Hawking radiation are hardly detectable in astrophysical black holes, these effects may be experimentally tested in analogue systems. In this Thesis, focusing on Bose-Einstein condensates, we present our recent results about analogue models of gravity from three main perspectives: as laboratory tests of quantum field theory in curved spacetime, for the techniques that they provide to address various issues in general relativity, and as toy models of quantum gravity. The robustness of Hawking-like particle creation is investigated in flows with a single black hole horizon. Furthermore, we find that condensates with two (white and black) horizons develop a dynamical instability known in general relativity as black hole laser effect. Using techniques borrowed from analogue gravity, we also show that warp drives, which...

  16. PHYSICS

    CERN Multimedia

    Christopher Hill

    2013-01-01

    Since the last CMS Bulletin, the CMS Physics Analysis Groups have completed more than 70 new analyses, many of which are based on the complete Run 1 dataset. In parallel the Snowmass whitepaper on projected discovery potential of CMS for HL-LHC has been completed, while the ECFA HL-LHC future physics studies has been summarised in a report and nine published benchmark analyses. Run 1 summary studies on b-tag and jet identification, quark-gluon discrimination and boosted topologies have been documented in BTV-13-001 and JME-13-002/005/006, respectively. The new tracking alignment and performance papers are being prepared for submission as well. The Higgs analysis group produced several new results including the search for ttH with H decaying to ZZ, WW, ττ+bb (HIG-13-019/020) where an excess of ~2.5σ is observed in the like-sign di-muon channel, and new searches for high-mass Higgs bosons (HIG-13-022). Search for invisible Higgs decays have also been performed both using the associ...

  17. NASA/ESMD Analogue Mission Plans

    Science.gov (United States)

    Hoffman, Stephen J.

    2007-01-01

    A viewgraph presentation exploring Earth and its analogues is shown. The topics include: 1) ESMD Goals for the Use of Earth Analogues; 2) Stakeholders Summary; 3) Issues with Current Analogue Situation; 4) Current state of Analogues; 5) External Implementation Plan (Second Step); 6) Recent Progress in Utilizing Analogues; 7) Website Layout Example-Home Page; 8) Website Layout Example-Analogue Site; 9) Website Layout Example-Analogue Mission; 10) Objectives of ARDIG Analog Initiatives; 11) Future Plans; 12) Example: Cold-Trap Sample Return; 13) Example: Site Characterization Matrix; 14) Integrated Analogue Studies-Prerequisites for Human Exploration; and 15) Rating Scale Definitions.

  18. The Physical/Chemical Closed-Loop Life Support Research Project

    Science.gov (United States)

    Bilardo, Vincent J., Jr.

    1990-01-01

    The various elements of the Physical/Chemical Closed-Loop Life Support Research Project (P/C CLLS) are described including both those currently funded and those planned for implementation at ARC and other participating NASA field centers. The plan addresses the entire range of regenerative life support for Space Exploration Initiative mission needs, and focuses initially on achieving technology readiness for the Initial Lunar Outpost by 1995-97. Project elements include water reclamation, air revitalization, solid waste management, thermal and systems control, and systems integration. Current analysis estimates that each occupant of a space habitat will require a total of 32 kg/day of supplies to live and operate comfortably, while an ideal P/C CLLS system capable of 100 percent reclamation of air and water, but excluding recycling of solid wastes or foods, will reduce this requirement to 3.4 kg/day.

  19. Implementation status of the extreme light infrastructure - nuclear physics (ELI-NP) project

    Energy Technology Data Exchange (ETDEWEB)

    Gales, S., E-mail: sydney.gales@eli-np.ro; Zamfir, N. V., E-mail: sydney.gales@eli-np.ro [ELI-NP, Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Bucharest-Magurele (Romania)

    2015-02-24

    The Project Extreme Light Infrastructure (ELI) is part of the European Strategic Forum for Research Infrastructures (ESFRI) Roadmap. ELI will be built as a network of three complementary pillars at the frontier of laser technologies. The ELI-NP pillar (NP for Nuclear Physics) is under construction near Bucharest (Romania) and will develop a scientific program using two 10 PW lasers and a Compton back-scattering high-brilliance and intense gamma beam, a marriage of laser and accelerator technology at the frontier of knowledge. In the present paper, the technical description of the facility, the present status of the project as well as the science, applications and future perspectives will be discussed.

  20. GROWTH OF THE INTERNATIONAL CRITICALITY SAFETY AND REACTOR PHYSICS EXPERIMENT EVALUATION PROJECTS

    Energy Technology Data Exchange (ETDEWEB)

    J. Blair Briggs; John D. Bess; Jim Gulliford

    2011-09-01

    Since the International Conference on Nuclear Criticality Safety (ICNC) 2007, the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and the International Reactor Physics Experiment Evaluation Project (IRPhEP) have continued to expand their efforts and broaden their scope. Eighteen countries participated on the ICSBEP in 2007. Now, there are 20, with recent contributions from Sweden and Argentina. The IRPhEP has also expanded from eight contributing countries in 2007 to 16 in 2011. Since ICNC 2007, the contents of the 'International Handbook of Evaluated Criticality Safety Benchmark Experiments1' have increased from 442 evaluations (38000 pages), containing benchmark specifications for 3955 critical or subcritical configurations to 516 evaluations (nearly 55000 pages), containing benchmark specifications for 4405 critical or subcritical configurations in the 2010 Edition of the ICSBEP Handbook. The contents of the Handbook have also increased from 21 to 24 criticality-alarm-placement/shielding configurations with multiple dose points for each, and from 20 to 200 configurations categorized as fundamental physics measurements relevant to criticality safety applications. Approximately 25 new evaluations and 150 additional configurations are expected to be added to the 2011 edition of the Handbook. Since ICNC 2007, the contents of the 'International Handbook of Evaluated Reactor Physics Benchmark Experiments2' have increased from 16 different experimental series that were performed at 12 different reactor facilities to 53 experimental series that were performed at 30 different reactor facilities in the 2011 edition of the Handbook. Considerable effort has also been made to improve the functionality of the searchable database, DICE (Database for the International Criticality Benchmark Evaluation Project) and verify the accuracy of the data contained therein. DICE will be discussed in separate papers at ICNC 2011. The status of the

  1. Project research on nuclear physical and chemical characteristics of actinide nuclides

    International Nuclear Information System (INIS)

    The chemical and nuclear physical characteristics of actinide elements have been investigated using the experimental methods and instruments of this laboratory. This laboratory has a facility in which the transuranium elements (TRU) and the long-lived fission products (LLFP) can be dealt with. The utility of this facility has been expected. The investigation on the actinide elements and its fission products have been carried out as a project research from both view points of science and technology. The research reports during three years (2005-07) are described here. (M.H.)

  2. Student evaluation of research projects in a first-year physics laboratory

    International Nuclear Information System (INIS)

    We describe the evaluation by students of a scheme of open-ended, research-based group project work which has become a standard component of first-year physics courses at the University of Sydney and is now in its 19th year of operation. Data were gathered from two sources: direct observations of the classes and a written survey. A summary of the classroom observations and the results from a detailed analysis of the survey responses are presented. The feedback from the cohort of approximately 800 students is largely positive but we identify a few discrepancies between stated course goals and the results from the survey. (paper)

  3. Condensed matter analogues of cosmology

    Science.gov (United States)

    Kibble, Tom; Srivastava, Ajit

    2013-10-01

    It is always exciting when developments in one branch of physics turn out to have relevance in a quite different branch. It would be hard to find two branches farther apart in terms of energy scales than early-universe cosmology and low-temperature condensed matter physics. Nevertheless ideas about the formation of topological defects during rapid phase transitions that originated in the context of the very early universe have proved remarkably fruitful when applied to a variety of condensed matter systems. The mathematical frameworks for describing these systems can be very similar. This interconnection has led to a deeper understanding of the phenomena in condensed matter systems utilizing ideas from cosmology. At the same time, one can view these condensed matter analogues as providing, at least in a limited sense, experimental access to the phenomena of the early universe for which no direct probe is possible. As this special issue well illustrates, this remains a dynamic and exciting field. The basic idea is that when a system goes through a rapid symmetry-breaking phase transition from a symmetric phase into one with spontaneously broken symmetry, the order parameter may make different choices in different regions, creating domains that when they meet can trap defects. The scale of those domains, and hence the density of defects, is constrained by the rate at which the system goes through the transition and the speed with which order parameter information propagates. This is what has come to be known as the Kibble-Zurek mechanism. The resultant scaling laws have now been tested in a considerable variety of different systems. The earliest experiments illustrating the analogy between cosmology and condensed matter were in liquid crystals, in particular on the isotropic-to-nematic transition, primarily because it is very easy to induce the phase transition (typically at room temperature) and to image precisely what is going on. This field remains one of the

  4. Natural analogues to the spent fuel behaviour of radioactive wastes (MATRIX, FASES I y II projects); Analogos naturales de la liberacion y migracion del UO2 y elementos metalicos asociados (Proyecto MATRIX, FASES I y II)

    Energy Technology Data Exchange (ETDEWEB)

    Perez del Villa, L.; Campos, R.; Garralon, A.; Crespo, M. T.; Quejido, J. A.; Cozar, J. S.; Arcos, D.; Bruno, J.; Grive, M.; Domenech, C.; Duro, L.; Ruiz Sanchez-Prro, J.; Marin, F.; Izquierdo, A.; Cattetero, G.; Ortuno, F.; Floria, E.

    2005-07-01

    Uranium ore deposits have been extensively studied as natural analogues to the spent fuel behaviour of radioactive wastes. These investigations constitute an essential element of both national and international research programmes applied to the assessment of HLNW repositories and their interaction with the environment. The U ore deposit of Mina Fe (Ciudad Rodrigo, Salamanca) is hosted in highly fractured schistose rocks, a geological setting that has not been envisaged in the ENRESA option for nuclear waste disposal. However, the processes occurring at Mina Fe maintain some analogies with those occurring in a HLNW repository: The existence of large U concentrations as pitchblende (UO{sub 2}+x), which is chemically analogous to the main component of spent nuclear fuel, which has an oxidation degree of 2.25 < x < 2.66 as a result of radiolytic oxidation. The solubility behaviour of pitchblende as a result of interaction with groundwaters of varying chemical composition can be used to validate predictive models for spent fuel stability under severe alteration conditions. Some of the weathering products of pitchblende are similar to those that have been identified during the experimental oxidative dissolution of UO{sub 2}, Sim fuel, as well as natural uraninite and pitchblende. This is a subject that has been previously investigated in other research projects. Fe(III)-oxy hydroxides in the oxidised zone of the deposit could be similar to the spent fuel container corrosion products that could be formed under redox transition conditions. These corrosion products may act as radionuclide and trace metal scavengers. (Author)

  5. Toward enhanced understanding and projections of climate extremes using physics-guided data mining techniques

    Science.gov (United States)

    Ganguly, A. R.; Kodra, E. A.; Agrawal, A.; Banerjee, A.; Boriah, S.; Chatterjee, Sn.; Chatterjee, So.; Choudhary, A.; Das, D.; Faghmous, J.; Ganguli, P.; Ghosh, S.; Hayhoe, K.; Hays, C.; Hendrix, W.; Fu, Q.; Kawale, J.; Kumar, D.; Kumar, V.; Liao, W.; Liess, S.; Mawalagedara, R.; Mithal, V.; Oglesby, R.; Salvi, K.; Snyder, P. K.; Steinhaeuser, K.; Wang, D.; Wuebbles, D.

    2014-07-01

    Extreme events such as heat waves, cold spells, floods, droughts, tropical cyclones, and tornadoes have potentially devastating impacts on natural and engineered systems and human communities worldwide. Stakeholder decisions about critical infrastructures, natural resources, emergency preparedness and humanitarian aid typically need to be made at local to regional scales over seasonal to decadal planning horizons. However, credible climate change attribution and reliable projections at more localized and shorter time scales remain grand challenges. Long-standing gaps include inadequate understanding of processes such as cloud physics and ocean-land-atmosphere interactions, limitations of physics-based computer models, and the importance of intrinsic climate system variability at decadal horizons. Meanwhile, the growing size and complexity of climate data from model simulations and remote sensors increases opportunities to address these scientific gaps. This perspectives article explores the possibility that physically cognizant mining of massive climate data may lead to significant advances in generating credible predictive insights about climate extremes and in turn translating them to actionable metrics and information for adaptation and policy. Specifically, we propose that data mining techniques geared towards extremes can help tackle the grand challenges in the development of interpretable climate projections, predictability, and uncertainty assessments. To be successful, scalable methods will need to handle what has been called "big data" to tease out elusive but robust statistics of extremes and change from what is ultimately small data. Physically based relationships (where available) and conceptual understanding (where appropriate) are needed to guide methods development and interpretation of results. Such approaches may be especially relevant in situations where computer models may not be able to fully encapsulate current process understanding, yet the

  6. Physical security in the decommissioning project of the Italian Radioisotopes Production Laboratories in Iraq

    International Nuclear Information System (INIS)

    Physical security at the process of the decommissioning of the Italian Radioisotopes Production Laboratories (IRPL) is an important matter and must take in account, especially in light of heightened concerns over loots and thefts activities following the events of 2003 in Iraq. The Italian Radioisotopes Production Laboratories (IRPL) was established by Italy in 1980 at Al-Tuwaitha Nuclear site of the former Iraqi Atomic Energy Commission (IAEC). It was designed for production of radioisotopes, sources, labeled compound, kits for medical and industrial and temporary storage, packing and shipping of the above mentioned radiation sources. The radioisotopes Laboratories was operated in 1981 and destroyed in 1991 in second Gulf war. This paper will contain the necessary activities for the physical security, organization and responsibilities in the decommissioning project of the (IRPL) which will be in three stages including the site preparation characterization, safety removing the rubble and scrap from the project site and then dismantling the remaining constructions of the (IRPL), which includes the following: Two concrete hot cells, One metallic, Four storage tanks (for liquids waste underground at level -3-855 m). (Author)

  7. Use of a high density lead glass tubing projection chamber in positron emission tomography and in high energy physics

    International Nuclear Information System (INIS)

    We describe the principle of operation of a high density Projection Chamber, in which the converter/radiator and drift field shaping structures are combined in the form of high density (5 to 6 g/cm3) lead glass tubing. The main applications of this type of detector to Medical Physics (Positron Emission Tomography) and High Energy Physics (Electromagnetic Calorimetry) are discussed

  8. Sol-Gel Application for Consolidating Stone: An Example of Project-Based Learning in a Physical Chemistry Lab

    Science.gov (United States)

    de los Santos, Desiree´ M.; Montes, Antonio; Sa´nchez-Coronilla, Antonio; Navas, Javier

    2014-01-01

    A Project Based Learning (PBL) methodology was used in the practical laboratories of the Advanced Physical Chemistry department. The project type proposed simulates "real research" focusing on sol-gel synthesis and the application of the obtained sol as a stone consolidant. Students were divided into small groups (2 to 3 students) to…

  9. The glaciogenic reservoir analogue studies project (GRASP)

    DEFF Research Database (Denmark)

    Moscariello, A.; Moreau, Julien; Vegt, P. van der;

    Tunnel galleys are common features in Palaeozoic glacigenic succession in North Afrcica and Middle East and they are amongst the most challenging target for hydrocarbon exploration and developing drilling in these regions. Similarly, these buried valleys form important groundwater reservoirs in...... Quaternary glaciated areas and their nature and sediment composition is critical to drive a sustainable production strategy and assess their vulnerability. Seismic resolution however, often limits the understanding of channel valleys morphology, 3D geometry and internal reservoir distribution, thus...... tunnel valley genesis, sedimentary process and internal architecture. This learning can be used ultimately to improve our predictive capability when exploring and developing natural resources from these geological systems....

  10. Analogue gravitational phenomena in Bose-Einstein condensates

    Science.gov (United States)

    Finazzi, Stefano

    2012-08-01

    Analogue gravity is based on the simple observation that perturbations propagating in several physical systems can be described by a quantum field theory in a curved spacetime. While phenomena like Hawking radiation are hardly detectable in astrophysical black holes, these effects may be experimentally tested in analogue systems. In this Thesis, focusing on Bose-Einstein condensates, we present our recent results about analogue models of gravity from three main perspectives: as laboratory tests of quantum field theory in curved spacetime, for the techniques that they provide to address various issues in general relativity, and as toy models of quantum gravity. The robustness of Hawking-like particle creation is investigated in flows with a single black hole horizon. Furthermore, we find that condensates with two (white and black) horizons develop a dynamical instability known in general relativity as black hole laser effect. Using techniques borrowed from analogue gravity, we also show that warp drives, which are general relativistic spacetimes allowing faster-than-light travel, are unstable. Finally, the cosmological constant issue is investigated from an analogue gravity perspective and relativistic Bose-Einstein condensates are proposed as new analogue systems with novel interesting properties.

  11. Integrating research evidence and physical activity policy making-REPOPA project.

    Science.gov (United States)

    Aro, Arja R; Bertram, Maja; Hämäläinen, Riitta-Maija; Van De Goor, Ien; Skovgaard, Thomas; Valente, Adriana; Castellani, Tommaso; Chereches, Razvan; Edwards, Nancy

    2016-06-01

    Evidence shows that regular physical activity is enhanced by supporting environment. Studies are needed to integrate research evidence into health enhancing, cross-sector physical activity (HEPA) policy making. This article presents the rationale, study design, measurement procedures and the initial results of the first phase of six European countries in a five-year research project (2011-2016), REsearch into POlicy to enhance Physical Activity (REPOPA). REPOPA is programmatic research; it consists of linked studies; the first phase studied the use of evidence in 21 policies in implementation to learn more in depth from the policy making process and carried out 86 qualitative stakeholder interviews. The second, ongoing phase builds on the central findings of the first phase in each country; it consists of two sets of interventions: game simulations to study cross-sector collaboration and organizational change processes in the use of evidence and locally tailored interventions to increase knowledge integration. The results of the first two study phases will be tested and validated among policy makers and other stakeholders in the third phase using a Delphi process. Initial results from the first project phase showed the lack of explicit evidence use in HEPA policy making. Facilitators and barriers of the evidence use were the availability of institutional resources and support but also networking between researchers and policy makers. REPOPA will increase understanding use of research evidence in different contexts; develop guidance and tools and establish sustainable structures such as networks and platforms between academics and policy makers across relevant sectors. PMID:25669200

  12. Benchmark Data Through The International Reactor Physics Experiment Evaluation Project (IRPHEP)

    Energy Technology Data Exchange (ETDEWEB)

    J. Blair Briggs; Dr. Enrico Sartori

    2005-09-01

    The International Reactor Physics Experiments Evaluation Project (IRPhEP) was initiated by the Organization for Economic Cooperation and Development (OECD) Nuclear Energy Agency’s (NEA) Nuclear Science Committee (NSC) in June of 2002. The IRPhEP focus is on the derivation of internationally peer reviewed benchmark models for several types of integral measurements, in addition to the critical configuration. While the benchmarks produced by the IRPhEP are of primary interest to the Reactor Physics Community, many of the benchmarks can be of significant value to the Criticality Safety and Nuclear Data Communities. Benchmarks that support the Next Generation Nuclear Plant (NGNP), for example, also support fuel manufacture, handling, transportation, and storage activities and could challenge current analytical methods. The IRPhEP is patterned after the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and is closely coordinated with the ICSBEP. This paper highlights the benchmarks that are currently being prepared by the IRPhEP that are also of interest to the Criticality Safety Community. The different types of measurements and associated benchmarks that can be expected in the first publication and beyond are described. The protocol for inclusion of IRPhEP benchmarks as ICSBEP benchmarks and for inclusion of ICSBEP benchmarks as IRPhEP benchmarks is detailed. The format for IRPhEP benchmark evaluations is described as an extension of the ICSBEP format. Benchmarks produced by the IRPhEP add new dimension to criticality safety benchmarking efforts and expand the collection of available integral benchmarks for nuclear data testing. The first publication of the "International Handbook of Evaluated Reactor Physics Benchmark Experiments" is scheduled for January of 2006.

  13. Colorado School of Mines Low Energy Nuclear Physics Project technical progress report

    International Nuclear Information System (INIS)

    This report summarizes the activity and accomplishments of the Colorado School of Mines Low Energy Nuclear Physics project during the calendar year 1989. Many of the projects which were anticipated in the original grant proposal have been completed. Among these completed projects we include of study of the radiative capture of low energy protons on 6Li, 7Li, 9Be, and 11B. Preliminary measurements of the branching ratios and yields of these reactions were reported in last year's Technical Progress Report. These measurements are now complete and have been used to extract the respective astrophysical S-factors and the corresponding thermonuclear reactivities. While not complete, progress has been made in some of the other originally proposed studies. Among these include a fairly extensive study of the interaction of low energy deuterons with 6Li and 7Li. In the course of this study we have made a solid observation of the Oppenheimer-Phillips effect in the D-6Li system. Progress has been made in our study of the radiative capture of alpha particles by deuterons, 6Li, and 7Li but considerable work remains in these studies. In our earlier reports we noted the observation of d-d reactions during the bombardment of deuterated targets with energetic beams of protons, alpha particles, and other light-to-medium ions. We believe we now understand this phenomenon and feel it has some fairly significant consequences both for our studies and for those of other researchers. Our susceptibility to mob hysteria led us to invest a significant effort in cold nuclear fusion, both employing a fairly unique accelerator based approach at CSM and as one of the gamma ray diagnosticians on the Princeton Plasma Physics Laboratory's Cold Fusion Task Force

  14. Evaluation guide for the international reactor physics experiments evaluation project (IRPhEP)

    International Nuclear Information System (INIS)

    At present, there is an urgent need to preserve integral reactor physics experimental data including separate or special effects data for nuclear energy and technology applications and the knowledge and competence contained therein. The International Reactor Physics Evaluation Project (IRPhEP) was initiated as a pilot activity in 1999 by the Organization of Economic Cooperation and Development (OECD) Nuclear Energy Agency (NEA) Nuclear Science Committee (NSC). The project was endorsed as an official activity of the NSC in June of 2003. While coordination and administration of the IRPhEP takes place at an international level, each participating country is responsible for the administration, technical direction, and priorities of the project within their respective countries. This document outlines the general presentation guidelines that evaluators should follow for the description of the experiments and all relevant experimental data in order to ensure the consistency between the evaluations published in the final Handbook. Publication templates will be used to ensure this consistency and will follow the general scheme below: 1 - Experiment identification number; 2- Date; 3 - Name of experiment (Purpose of experiment, Phenomena measured and scope); 4 - Name or designation of experimental programme; 5 - Description of facility; 6 - Description of test or experiment (Experimental configuration, Core life cycle, Experimental limitations or shortcomings); 7 - Phenomena measured (Description of results and analysis, Special features and characteristics of experiment, Measurement systems/methods and uncertainties); 8 - Duplicate or complementary experiments / other related experiments; 9 - Status of completion of the evaluation; 10 - References (pointer to evaluation, archive if available, otherwise generic bibliographic reference); 11 - Authors/ organisers 12 - Material available

  15. Parental influences on adolescents' physical activity and sedentary behavior: longitudinal findings from Project EAT-II

    Directory of Open Access Journals (Sweden)

    Bauer Katherine W

    2008-02-01

    Full Text Available Abstract Background The long-term role that parental encouragement and attitudes about fitness and exercise play in adolescents' physical activity and sedentary behavior habits remains unclear. This paper aims to longitudinally examine how parental encouragement to be physically active and parental concern about staying fit are associated with adolescents' physical activity and sedentary behavior habits five years later. Methods Project EAT-II adolescent and young adult participants (1130 male, 1386 female completed surveys while in middle school or high school (1998–1999, and again 5 years later. Participants were asked whether their mother and father encourage them to be physically active and care about staying fit and exercising. Adolescent moderate and vigorous physical activity (MVPA and TV/video watching (hours/week were assessed. Linear regression models adjusted for socio-demographic characteristics and baseline behavior were used to examine the association of Time 1 parental factors with behavioral outcomes among adolescents and young adults five years later (Time 2. Results After adjustment for socio-demographic characteristics and baseline MVPA, adolescent-reported maternal and paternal encouragement to be active, and paternal care for fitness, were positively associated with weekly hours of MVPA after five years in young adult males (p for trend ≤ .01. The positive relationship between maternal encouragement and MVPA approached significance among high-school aged females (p for trend = .06, and paternal encouragement was positively related to MVPA among high-school aged males (p for trend = .02. While maternal encouragement to be active was associated with decreased TV/video time among younger females (p for trend = .02, other parental factors were not associated with lower TV/video time among the other groups. Conclusion Parental encouragement to be active was associated with increased physical activity among males and younger

  16. [Depression in older adults: the National Mental Care Project for People with Physical Illness].

    Science.gov (United States)

    Ito, Hiroto; Fukuda, Koji; Hattori, Hideyuki

    2013-01-01

    Political attention is being increasingly directed to mental health in Japan. Mental disorders are now the fifth priority disease after cancer, stroke, acute myocardial infarction and diabetes for national medical services since April 2013. Each prefecture has to implement strategic mental healthcare plans at the regional level. With the increase in co-morbid mental and physical illnesses, patient information should be shared between psychiatric and non-psychiatric healthcare providers, and coordination is required in the healthcare systems. A better understanding of mental health between patients and medical staffs could contribute to improved access to psychiatric services in the integrated mental health care system. Collaborative care programs focusing on depression screening and management in the Mental Health Care Project for Patients with Physical Illness have been launched among six national specialized care and research centers (cancer, cardiovascular disease, diabetes, child care, geriatric care and neurology and psychiatry) since 2012. These efforts to integrate mental health care into the general health care system would help to improve psychiatric care for elderly patients with physical illnesses. PMID:24622214

  17. Computer Hardware, Advanced Mathematics and Model Physics pilot project final report

    International Nuclear Information System (INIS)

    The Computer Hardware, Advanced Mathematics and Model Physics (CHAMMP) Program was launched in January, 1990. A principal objective of the program has been to utilize the emerging capabilities of massively parallel scientific computers in the challenge of regional scale predictions of decade-to-century climate change. CHAMMP has already demonstrated the feasibility of achieving a 10,000 fold increase in computational throughput for climate modeling in this decade. What we have also recognized, however, is the need for new algorithms and computer software to capitalize on the radically new computing architectures. This report describes the pilot CHAMMP projects at the DOE National Laboratories and the National Center for Atmospheric Research (NCAR). The pilot projects were selected to identify the principal challenges to CHAMMP and to entrain new scientific computing expertise. The success of some of these projects has aided in the definition of the CHAMMP scientific plan. Many of the papers in this report have been or will be submitted for publication in the open literature. Readers are urged to consult with the authors directly for questions or comments about their papers

  18. The pitchblende of Fe mine (Ciudad Rodrigo, Salamanca) as natural analogue of spent fuel behaviour (matrix I project); La pechblenda de la mina Fe (Ciudad Rodrigo, Salamanca), como analogo natural del comportamiento del combustible gastado (Proyecto Matrix I)

    Energy Technology Data Exchange (ETDEWEB)

    Perez del Villar, L.; Campos, R.; Gomez, P.; Cozar, J.S.; Pardillo, J.; Garralon, A.; Turrero, M.J.; Buil, B.; Pelayo, M.; Ruiz, B.; Rivas, P. [CIEMAT, Madrid (Spain)

    2001-07-01

    Uranium ore deposits have been extensively studied as natural analogues to the deep geological disposal of radioactive waste. These investigations constitute an essential element of both national and international research programmes applied to the assessment of geological repositories in crystalline, clayey and even in schistose rocks. The uranium ore deposit of Fe mine (Ciudad Rodrigo, Salmanca) is placed in highly fractured schistose rocks, a geological setting that has not been envisaged in ENRESA options. However, the similarities with some of the repository features and the analogies with the processes involved in the degradation of the ore deposits made advisable its study as natural analogue. The most important features are. (Author)

  19. Sexuality and Physical Contact in National Social Life, Health, and Aging Project Wave 2

    Science.gov (United States)

    McClintock, Martha K.; Waite, Linda J.

    2014-01-01

    Introduction. Wave 2 of the National Social Life, Health, and Aging Project (NSHAP) includes new measures of sexual interest and behavior, as well as new measures of the context of sexual experience and the frequency and appeal of physical contact. This is the first time many of these constructs have been measured in a nationally representative sample. Method. We describe the new measures and compare the distributions of each across gender and age groups, in some cases by partnership status. Results. Two components of sexuality decrease with age among both men and women: frequency of finding an unknown person sexually attractive and receptivity to a partner’s sexual overtures. In contrast, the inclination to make one’s self sexually attractive to others was a more complicated function of partner status, gender, and age: partnered women and unpartnered men made the most effort, with the more effortful gender’s effort decreasing with age. Both men and women find nonsexual physical contact appealing but sexual physical contact is more appealing to men than women. Finally, two fifths of men and women report dissatisfaction with their partner’s frequency of caring behaviors that make later sexual interactions pleasurable, and a fifth of women and a quarter of men who had vaginal sex in the past year report dissatisfaction with amount of foreplay. Discussion. These data offer the opportunity to characterize sexual motivation in older adulthood more precisely and richly and to examine how the context of sexual experience and the nonsexual aspects of physical intimacy correlate with sexual behavior, enjoyment, and problems. PMID:25360027

  20. PHYSICS OF THE 1 TERAFLOP RIKEN-BNL-COLUMBIA QCD PROJECT.

    Energy Technology Data Exchange (ETDEWEB)

    MAWHINNEY,R.

    1998-10-16

    A workshop was held at the RIKEN-BNL Research Center on the afternoon of October 16, i 998, as part of the first anniversary ceremony for the center. Titled ''Workshop on Physics of the 1 Teraflop RIKEN-BNL-Columbia QCD Project'', this meeting brought together the physicists from RIKEN-BNL, BNL and Columbia who are using the QCDSP (Quantum Chromodynamics on Digital Signal Processors) computer at the RIKEN-BNL Research Center for studies of QCD. In addition, Akira Ukawa, a leader of the CP-PACS project at the University of Tsukuba in Japan, attended and gave a talk on the Aoki phase. There were also others in attendance who were interested in more general properties of the QCDSP computer. The QCDSP computer and lattice QCD had been presented during the morning ceremony by Shigemi Ohta of KEK and the RIKEN-BNL Research Center. This was followed by a tour of the QCDSP machine room and a formal unveiling of the computer to the attendees of the anniversary ceremony and the press. The rapid completion of construction of the QCDSP computer was made possible through many factors: (1) the existence of a complete design and working hardware at Columbia when the RIKEN-BNL center was being set up, (2) strong support for the project from RIKEN and the center and (3) aggressive involvement of members of the Computing and Communications Division at BNL. With this powerful new resource, the members of the RIKEN-BNL-Columbia, QCD project are looking forward to advances in our understanding of QCD.

  1. PHYSICS OF THE 1 TERAFLOP RIKEN-BNL-COLUMBIA QCD PROJECT.

    Energy Technology Data Exchange (ETDEWEB)

    MAWHINNEY,R.

    1998-10-16

    A workshop was held at the RIKEN-BNL Research Center on the afternoon of October 16, 1998, as part of the first anniversary ceremony for the center. Titled ''Workshop on Physics of the 1 Teraflop RIKEN-BNL-Columbia QCD Project'', this meeting brought together the physicists from RIKEN-BNL, BNL and Columbia who are using the QCDSP (Quantum Chromodynamics on Digital Signal Processors) computer at the RIKEN-BNL Research Center for studies of QCD. In addition, Akira Ukawa, a leader of the CP-PACS project at the University of Tsukuba in Japan, attended and gave a talk on the Aoki phase. There were also others in attendance who were interested in more general properties of the QCDSP computer. The QCDSP computer and lattice QCD had been presented during the morning ceremony by Shigemi Ohta of KEK and the RIKEN-BNL Research Center. This was followed by a tour of the QCDSP machine room and a formal unveiling of the computer to the attendees of the anniversary ceremony and the press. The rapid completion of construction of the QCDSP computer was made possible through many factors: (1) the existence of a complete design and working hardware at Columbia when the RIKEN-BNL center was being set up, (2) strong support for the project from RIKEN and the center and (3) aggressive involvement of members of the Computing and Communications Division at BNL. With this powerful new resource, the members of the RIKEN-BNL-Columbia, QCD project are looking forward to advances in our understanding of QCD.

  2. Quantum Physics Exploring Gravity in the Outer Solar System: The Sagas Project

    CERN Document Server

    Wolf, P; Clairon, A; Duchayne, L; Landragin, A; Lemonde, P; Santarelli, G; Ertmer, W; Rasel, E; Cataliotti, F S; Inguscio, M; Tino, G M; Gill, P; Klein, H; Reynaud, S; Salomon, C; Peik, E; Bertolami, O; Gil, P; Páramos, J; Jentsch, C; Johann, U; Rathke, A; Bouyer, P; Cacciapuoti, L; Izzo, D; De Natale, P; Christophe, B; Touboul, P; Turyshev, S G; Anderson, J D; Tobar, M E; Schmidt-Kaler, F; Vigué, J; Madej, A; Marmet, L; Angonin, M-C; Delva, P; Tourrenc, P; Metris, G; Müller, H; Walsworth, R; Lu, Z H; Wang, L; Bongs, K; Toncelli, A; Tonelli, M; Dittus, H; Lämmerzahl, C; Galzerano, G; Laporta, P; Laskar, J; Fienga, A; Roques, F; Sengstock, K

    2007-01-01

    We summarise the scientific and technological aspects of the SAGAS (Search for Anomalous Gravitation using Atomic Sensors) project, submitted to ESA in June 2007 in response to the Cosmic Vision 2015-2025 call for proposals. The proposed mission aims at flying highly sensitive atomic sensors (optical clock, cold atom accelerometer, optical link) on a Solar System escape trajectory in the 2020 to 2030 time-frame. SAGAS has numerous science objectives in fundamental physics and Solar System science, for example numerous tests of general relativity and the exploration of the Kuiper belt. The combination of highly sensitive atomic sensors and of the laser link well adapted for large distances will allow measurements with unprecedented accuracy and on scales never reached before. We present the proposed mission in some detail, with particular emphasis on the science goals and associated measurements.

  3. Brassinosteroids: Synthesis and activity of some fluoro analogues

    Czech Academy of Sciences Publication Activity Database

    Slavíková, Barbora; Kohout, Ladislav; Buděšínský, Miloš; Swaczynová, Jana; Kasal, Alexander

    2008-01-01

    Roč. 51, č. 13 (2008), s. 3979-3984. ISSN 0022-2623 R&D Projects: GA AV ČR IAA400550609 Institutional research plan: CEZ:AV0Z40550506; CEZ:AV0Z50380511 Keywords : brassinosteroids * fluoro analogues Subject RIV: CC - Organic Chemistry Impact factor: 4.898, year: 2008

  4. Conformation analysis of Se and Te containing nucleoside analogues

    Czech Academy of Sciences Publication Activity Database

    Poštová Slavětínská, Lenka; Rejman, Dominik; Kleinpeter, E.; Pohl, Radek

    Santiago de Compostela : -, 2013. s. 221-221. [SMASH 2013. 22.9.2013-25.9.2013, Santiago de Compostela] R&D Projects: GA ČR GA13-24880S Institutional support: RVO:61388963 Keywords : low-temperature NMR * DFT * nucleoside analogues Subject RIV: CC - Organic Chemistry

  5. Geochemical modelling of the Broubster natural analogue site Caithness, Scotland

    International Nuclear Information System (INIS)

    The results of a modelling study carried out to improve understanding of speciation and actinide migration mechanisms operating at Broubster (UK) are described. This work is part of the CEC coordinated project Mirage - Second phase (Migration of radionuclides in the geosphere), research area Natural analogues

  6. The A4 project: physics data processing using the Google protocol buffer library

    CERN Document Server

    Ebke, Johannes

    2012-01-01

    In this paper, we present the High Energy Physics data format, processing toolset and analysis library a4, providing fast I/O of structured data using the Google protocol buffer library. The overall goal of a4 is to provide physicists with tools to work efficiently with billions of events, providing not only high speeds, but also automatic metadata handling, a set of UNIX-like tools to operate on a4 files, and powerful and fast histogramming capabilities. At present, a4 is an experimental project, but it has already been used by the authors in preparing physics publications. We give an overview of the individual modules of a4, provide examples of use, and supply a set of basic benchmarks. We compare a4 read performance with the common practice of storing unstructured data in ROOT trees. For the common case of storing a variable number of floating-point numbers per event, speedups in read speed of up to a factor of six are observed.

  7. Radiation trapping in 1D using the Markov chain formalism: a computational physics project

    International Nuclear Information System (INIS)

    A computational model study for atomic radiation trapping is presented with an audience non-specialized in radiation transport in mind. The level of presentation is adequate for a final undergraduate or beginning graduate project in a computational physics instruction. The dynamics of resonance radiation transport is discussed using a theoretical model known as the multiple scattering representation. This model is compared with the alternative Holstein's ansatz, reinterpreting the fundamental mode as the one associated with a relaxed stationary spatial distribution of excitation. Its computational implementation is done making use of the stochastic Markov chain formalism. A comprehensive discussion of its rationale as well as fine implementation details are presented. The simplest case of complete frequency redistribution in a two-level system is considered for a unidimensional geometry. Nevertheless, the model study discusses at length the influence of the spectral distributions, overall opacity and emission quantum yield for trapping distorted ensemble quantities stressing physical insight and using only straightforward algorithmic concepts. Overall relaxation parameters (ensemble emission yield and lifetime) as well as steady-state quantities (spectra and spatial distribution) are calculated as a function of intrinsic emission yield, opacity and external excitation mode for Doppler, Lorentz and Voigt lineshapes, respectively, with the fundamental mode contribution singled out

  8. The A4 project: physics data processing using the Google protocol buffer library

    International Nuclear Information System (INIS)

    In this paper, we present the High Energy Physics data format, processing toolset and analysis library A4, providing fast I/O of structured data using the Google protocol buffer library. The overall goal of A4 is to provide physicists with tools to work efficiently with billions of events, providing not only high speeds, but also automatic metadata handling, a set of UNIX-like tools to operate on A4 files, and powerful and fast histogramming capabilities. At present, A4 is an experimental project, but it has already been used by the authors in preparing physics publications. We give an overview of the individual modules of A4, provide examples of use, and supply a set of basic benchmarks. We compare A4 read performance with the common practice of storing unstructured data in ROOT trees. For the common case of storing a variable number of floating-point numbers per event, speedups in read speed of up to a factor of six are observed.

  9. COMPASS, the COMmunity Petascale project for Accelerator Science and Simulation, a board computational accelerator physics initiative

    International Nuclear Information System (INIS)

    Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools being developed can be used to predict the dynamics of beams in the presence of optical elements and space charge forces, the calculation of electromagnetic modes and wake fields of cavities, the cooling induced by comoving beams, and the acceleration of beams by intense fields in plasmas generated by beams or lasers. In SciDAC-1, the computational tools had multiple successes in predicting the dynamics of beams and beam generation. In SciDAC-2 these tools will be petascale enabled to allow the inclusion of an unprecedented level of physics for detailed prediction

  10. Status and neutrino oscillation physics potential of the Hyper-Kamiokande Project in Japan

    Science.gov (United States)

    De Rosa, Gianfranca; Hyper-Kamiokande Protocollaboration

    2016-05-01

    Hyper-Kamiokande (Hyper-K), a proposed one-megaton water Cherenkov detector to be built in Japan, is the logical continuation of the highly successful program of neutrino (astro) physics and proton decay using the water Cherenkov technique. In its baseline design, the Hyper-K detector consists of two cylindrical tanks lying side-by-side, the outer dimensions of each tank being 48m × 54m × 250m. The inner detector region will be instrumented with 99,000 20-inch photo-sensors. An international proto-collaboration has been intensively working on the R&D of key components such as optimization of cavern, tank construction, development of high performance photo-sensors, design of new near detectors and improvements to the J-PARC neutrino beam. Hyper-K will study the CP asymmetry in neutrino oscillations using the neutrino and anti-neutrino beams produced at J-PARC. With an exposure of 7.5 MW × 107 seconds, CP violating parameter delta can be measured to better than 19 degrees at all values of delta, and CP violation can be detected with more than 3 sigma significance for 76% of the values. An overview of the status of project and the studies of the sensitivity of this detector to physics quantities governing neutrino oscillation is presented.

  11. COMPASS, the COMmunity Petascale Project for Accelerator Science and Simulation, a broad computational accelerator physics initiative

    Energy Technology Data Exchange (ETDEWEB)

    J.R. Cary; P. Spentzouris; J. Amundson; L. McInnes; M. Borland; B. Mustapha; B. Norris; P. Ostroumov; Y. Wang; W. Fischer; A. Fedotov; I. Ben-Zvi; R. Ryne; E. Esarey; C. Geddes; J. Qiang; E. Ng; S. Li; C. Ng; R. Lee; L. Merminga; H. Wang; D.L. Bruhwiler; D. Dechow; P. Mullowney; P. Messmer; C. Nieter; S. Ovtchinnikov; K. Paul; P. Stoltz; D. Wade-Stein; W.B. Mori; V. Decyk; C.K. Huang; W. Lu; M. Tzoufras; F. Tsung; M. Zhou; G.R. Werner; T. Antonsen; T. Katsouleas

    2007-06-01

    Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools being developed can be used to predict the dynamics of beams in the presence of optical elements and space charge forces, the calculation of electromagnetic modes and wake fields of cavities, the cooling induced by comoving beams, and the acceleration of beams by intense fields in plasmas generated by beams or lasers. In SciDAC-1, the computational tools had multiple successes in predicting the dynamics of beams and beam generation. In SciDAC-2 these tools will be petascale enabled to allow the inclusion of an unprecedented level of physics for detailed prediction.

  12. COMPASS, the COMmunity Petascale project for Accelerator Science and Simulation, a board computational accelerator physics initiative

    Energy Technology Data Exchange (ETDEWEB)

    Cary, J.R.; Spentzouris, P.; Amundson, J.; McInnes, L.; Borland, M.; Mustapha, B.; Ostroumov, P.; Wang, Y.; Fischer, W.; Fedotov, A.; Ben-Zvi, I.; Ryne, R.; Esarey, E.; Geddes, C.; Qiang, J.; Ng, E.; Li, S.; Ng, C.; Lee, R.; Merminga, L.; Wang, H.; Bruhwiler, D.L.; Dechow, D.; Mullowney, P.; Messmer, P.; Nieter, C.; Ovtchinnikov, S.; Paul, K.; Stoltz, P.; Wade-Stein, D.; Mori, W.B.; Decyk, V.; Huang, C.K.; Lu, W.; Tzoufras, M.; Tsung, F.; Zhou, M.; Werner, G.R.; Antonsen, T.; Katsouleas, T.; Morris, B.

    2007-07-16

    Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools being developed can be used to predict the dynamics of beams in the presence of optical elements and space charge forces, the calculation of electromagnetic modes and wake fields of cavities, the cooling induced by comoving beams, and the acceleration of beams by intense fields in plasmas generated by beams or lasers. In SciDAC-1, the computational tools had multiple successes in predicting the dynamics of beams and beam generation. In SciDAC-2 these tools will be petascale enabled to allow the inclusion of an unprecedented level of physics for detailed prediction.

  13. COMPASS, the COMmunity Petascale Project for Accelerator Science And Simulation, a Broad Computational Accelerator Physics Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Cary, J.R.; /Tech-X, Boulder /Colorado U.; Spentzouris, P.; Amundson, J.; /Fermilab; McInnes, L.; Borland, M.; Mustapha, B.; Norris, B.; Ostroumov, P.; Wang, Y.; /Argonne; Fischer, W.; Fedotov, A.; Ben-Zvi, I.; /Brookhaven; Ryne, R.; Esarey, E.; Geddes, C.; Qiang, J.; Ng, E.; Li, S.; /LBL, Berkeley; Ng, C.; Lee, R.; /SLAC; Merminga, L.; /Jefferson Lab /Tech-X, Boulder /UCLA /Colorado U. /Maryland U. /Southern California U.

    2007-11-09

    Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools being developed can be used to predict the dynamics of beams in the presence of optical elements and space charge forces, the calculation of electromagnetic modes and wake fields of cavities, the cooling induced by comoving beams, and the acceleration of beams by intense fields in plasmas generated by beams or lasers. In SciDAC-1, the computational tools had multiple successes in predicting the dynamics of beams and beam generation. In SciDAC-2 these tools will be petascale enabled to allow the inclusion of an unprecedented level of physics for detailed prediction.

  14. Fuel Thermo-physical Characterization Project: Evaluation of Models to Calculate Thermal Diffusivity of Layered Composites

    Energy Technology Data Exchange (ETDEWEB)

    Burkes, Douglas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Casella, Amanda J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Gardner, Levi D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Casella, Andrew M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Huber, Tanja K. [Technische Universität München, Munich (Germany); Breitkreutz, Harald [Technische Universität München, Munich (Germany)

    2015-02-11

    The Office of Material Management and Minimization Fuel Thermo-physical Characterization Project at Pacific Northwest National Laboratory (PNNL) is tasked with using PNNL facilities and processes to receive irradiated low enriched uranium-molybdenum fuel plate samples and perform analyses in support of the Office of Material Management and Minimization Reactor Conversion Program. This work is in support of the Fuel Development Pillar that is managed by Idaho National Laboratory. A key portion of the scope associated with this project was to measure the thermal properties of fuel segments harvested from plates that were irradiated in the Advanced Test Reactor. Thermal diffusivity of samples prepared from the fuel segments was measured using laser flash analysis. Two models, one developed by PNNL and the other developed by the Technische Universität München (TUM), were evaluated to extract the thermal diffusivity of the uranium-molybdenum alloy from measurements made on the irradiated, layered composites. The experimental data of the “TC” irradiated fuel segment was evaluated using both models considering a three-layer and five-layer system. Both models are in acceptable agreement with one another and indicate that the zirconium diffusion barrier has a minimal impact on the overall thermal diffusivity of the monolithic U-Mo fuel.

  15. Physical Activity through Sustainable Transport Approaches (PASTA): a study protocol for a multicentre project

    Science.gov (United States)

    de Nazelle, Audrey; Nieuwenhuijsen, Mark; Panis, Luc Int; Anaya, Esther; Avila-Palencia, Ione; Boschetti, Florinda; Brand, Christian; Cole-Hunter, Tom; Dons, Evi; Eriksson, Ulf; Gaupp-Berghausen, Mailin; Kahlmeier, Sonja; Laeremans, Michelle; Mueller, Natalie; Orjuela, Juan Pablo; Racioppi, Francesca; Raser, Elisabeth; Rojas-Rueda, David; Schweizer, Christian; Standaert, Arnout; Uhlmann, Tina; Wegener, Sandra; Götschi, Thomas

    2016-01-01

    Introduction Only one-third of the European population meets the minimum recommended levels of physical activity (PA). Physical inactivity is a major risk factor for non-communicable diseases. Walking and cycling for transport (active mobility, AM) are well suited to provide regular PA. The European research project Physical Activity through Sustainable Transport Approaches (PASTA) pursues the following aims: (1) to investigate correlates and interrelations of AM, PA, air pollution and crash risk; (2) to evaluate the effectiveness of selected interventions to promote AM; (3) to improve health impact assessment (HIA) of AM; (4) to foster the exchange between the disciplines of public health and transport planning, and between research and practice. Methods and analysis PASTA pursues a mixed-method and multilevel approach that is consistently applied in seven case study cities. Determinants of AM and the evaluation of measures to increase AM are investigated through a large scale longitudinal survey, with overall 14 000 respondents participating in Antwerp, Barcelona, London, Örebro, Rome, Vienna and Zurich. Contextual factors are systematically gathered in each city. PASTA generates empirical findings to improve HIA for AM, for example, with estimates of crash risks, factors on AM-PA substitution and carbon emissions savings from mode shifts. Findings from PASTA will inform WHO's online Health Economic Assessment Tool on the health benefits from cycling and/or walking. The study's wide scope, the combination of qualitative and quantitative methods and health and transport methods, the innovative survey design, the general and city-specific analyses, and the transdisciplinary composition of the consortium and the wider network of partners promise highly relevant insights for research and practice. Ethics and dissemination Ethics approval has been obtained by the local ethics committees in the countries where the work is being conducted, and sent to the European

  16. Implementing a Formative Evaluation Plan for the Princeton Earth Physics Project

    Science.gov (United States)

    Bailey, J. M.; Phinney, R. A.; Slater, T. F.; Steinberg, D. J.

    2001-12-01

    Since 1997, the Princeton Earth Physics Project (PEPP) has supported the distribution of seismometers to approximately 70 schools across the country, sponsored by faculty hosts at nearby universities. The main goal of PEPP is to get students and teachers involved in doing authentic, hands-on science by providing them with a seismometer for geological data acquisition. After three years, less than half of the schools are still actively operating stations. A formative project evaluation was conducted during the 2000-2001 academic year to determine the effectiveness of the PEPP program. The evaluation focus was to understand the characteristics and infrastructure of those schools that are successfully operating stations and to recommend program changes that would facilitate increased participation in the future. Evaluators first held a series of exploratory interviews with select participants to determine the issues they felt were highest priority. From these interviews we developed a survey that was administered online to all participants. Finally, follow-up interviews were conducted with participants to further explore details of the survey results. Despite many technological improvements made during the program, there are still several technical problems being faced by some teacher-participants. Active teacher-participants are utilizing PEPP throughout the school year in a wide manner of applications, ranging from displaying earthquake data to class triangulation activities to independent research projects by students. Many participants feel that PEPP supports national and state science education standards efforts very well; in particular, inquiry and technology issues in the standards are strongly supported by a program such as this. Unfortunately, there is very little known at this point about the impact that PEPP might have on student learning. There were a significant number of informal observations made by the evaluators presented to the principal

  17. PHYSICS

    CERN Multimedia

    P. Sphicas

    There have been three physics meetings since the last CMS week: “physics days” on March 27-29, the Physics/ Trigger week on April 23-27 and the most recent physics days on May 22-24. The main purpose of the March physics days was to finalize the list of “2007 analyses”, i.e. the few topics that the physics groups will concentrate on for the rest of this calendar year. The idea is to carry out a full physics exercise, with CMSSW, for select physics channels which test key features of the physics objects, or represent potential “day 1” physics topics that need to be addressed in advance. The list of these analyses was indeed completed and presented in the plenary meetings. As always, a significant amount of time was also spent in reviewing the status of the physics objects (reconstruction) as well as their usage in the High-Level Trigger (HLT). The major event of the past three months was the first “Physics/Trigger week” in Apri...

  18. News Demonstrations: Lecture showcases the best of physics Astronomy: April 2011 celebrates astronomy Award: Physics project wins Guardian innovation award Teaching: Liverpool conference inspires teachers Media: Physics Education finds fame at last Conference: Network stimulates physics at ASE Lectures: University of Oxford hosts a crowd for an update on physics Materials: Goldsmiths course lets teachers get to grips with materials Workshop: Stimulating Physics workshop offers places for teachers and technicians

    Science.gov (United States)

    2011-03-01

    Demonstrations: Lecture showcases the best of physics Astronomy: April 2011 celebrates astronomy Award: Physics project wins Guardian innovation award Teaching: Liverpool conference inspires teachers Media: Physics Education finds fame at last Conference: Network stimulates physics at ASE Lectures: University of Oxford hosts a crowd for an update on physics Materials: Goldsmiths course lets teachers get to grips with materials Workshop: Stimulating Physics workshop offers places for teachers and technicians

  19. Research Project Entitled "The Dynamics and Physical Processes in The Weather and Climate System" --Part Ⅰ: A Brief Introduction

    Institute of Scientific and Technical Information of China (English)

    罗云峰; 郑文静; 周小刚

    2004-01-01

    In the beginning of the 21st century, the Tenth Five-Year Priority Research Projects of the Earth Sciences of the National Natural Science Foundation of China (NSFC) were initiated. After nearly a two-year long process to prepare, the first version of six Priority Research Projects of Earth Sciences was published in October 2001 by NSFC, viz., Local Response to Global Changes, Life Process and Environment,Dynamics and Physical Processes in the Weather and Climate System, Continental Dynamics, Regional Sustainable Development, Solar-Terrestrial Environment and Space Weather. The process involved more than 200 renowned Chinese scientists and many departments and agencies in China. The six Priority Research Projects guide the research effort of the earth sciences for the NSFC from year 2001 to 2005.This paper provides a brief introduction to the Third Priority Research Project of the Department of Earth Sciences of NSFC-Dynamics and Physical Processes in the Weather and Climate System (DPWOS).

  20. THE ASSOCIATIONS BETWEEN SELF-EFFICACY AND PHYSICAL ACTIVITY AMONG MIDDLE-AGED WOMEN: KOUVOLAN SEUDUN MUISTI RY PROJECT

    OpenAIRE

    Kewoh-Vainio, Vivian

    2013-01-01

    ABSTRACT KYMENLAAKSON AMMATTIKORKEAKOULU University of Applied Sciences Master’s Degree in Health Promotion KEWOH-VAINIO, VIVIAN The Associations Between Self-Efficacy and Physical Activity Among Middle-aged Women: Kouvolan Seudun Muisti ry. Master’s Thesis 46 pages +9 Appendices Supervisor Marja-Leena, Kauronen Principal Lecturer Commissioned by Kouvolan Seudun Muisti ry Project April 2013 Keywords: Self-efficacy, physical activity, middle-aged, wo...

  1. The Desktop Muon Detector: A simple, physics-motivated machine- and electronics-shop project for university students

    CERN Document Server

    Axani, Spencer N; Kirby, Conor

    2016-01-01

    This paper describes an undergraduate-level physics project that incorporates various aspects of machine- and electronics-shop technical development. The desktop muon detector is a self-contained apparatus that employs plastic scintillator as a detection medium and a silicon photomultiplier for light collection. These detectors can be used in conjunction with the provided software to make interesting physics measurements. The total cost of each counter is approximately $100.

  2. PHYSICS

    CERN Document Server

    D. Acosta

    2010-01-01

    A remarkable amount of progress has been made in Physics since the last CMS Week in June given the exponential growth in the delivered LHC luminosity. The first major milestone was the delivery of a variety of results to the ICHEP international conference held in Paris this July. For this conference, CMS prepared 15 Physics Analysis Summaries on physics objects and 22 Summaries on new and interesting physics measurements that exploited the luminosity recorded by the CMS detector. The challenge was incorporating the largest batch of luminosity that was delivered only days before the conference (300 nb-1 total). The physics covered from this initial running period spanned hadron production measurements, jet production and properties, electroweak vector boson production, and even glimpses of the top quark. Since then, the accumulated integrated luminosity has increased by a factor of more than 100, and all groups have been working tremendously hard on analysing this dataset. The September Physics Week was held ...

  3. Introduction to electronic analogue computers

    CERN Document Server

    Wass, C A A

    1965-01-01

    Introduction to Electronic Analogue Computers, Second Revised Edition is based on the ideas and experience of a group of workers at the Royal Aircraft Establishment, Farnborough, Hants. This edition is almost entirely the work of Mr. K. C. Garner, of the College of Aeronautics, Cranfield. As various advances have been made in the technology involving electronic analogue computers, this book presents discussions on the said progress, including some acquaintance with the capabilities of electronic circuits and equipment. This text also provides a mathematical background including simple differen

  4. PHYSICS

    CERN Multimedia

    J. Incandela

    There have been numerous developments in the physics area since the September CMS week. The biggest single event was the Physics/Trigger week in the end of Octo¬ber, whereas in terms of ongoing activities the “2007 analyses” went into high gear. This was in parallel with participation in CSA07 by the physics groups. On the or¬ganizational side, the new conveners of the physics groups have been selected, and a new database for man¬aging physics analyses has been deployed. Physics/Trigger week The second Physics-Trigger week of 2007 took place during the week of October 22-26. The first half of the week was dedicated to working group meetings. The ple¬nary Joint Physics-Trigger meeting took place on Wednesday afternoon and focused on the activities of the new Trigger Studies Group (TSG) and trigger monitoring. Both the Physics and Trigger organizations are now focused on readiness for early data-taking. Thus, early trigger tables and preparations for calibr...

  5. PHYSICS

    CERN Multimedia

    Submitted by

    Physics Week: plenary meeting on physics groups plans for startup (14–15 May 2008) The Physics Objects (POG) and Physics Analysis (PAG) Groups presented their latest developments at the plenary meeting during the Physics Week. In the presentations particular attention was given to startup plans and readiness for data-taking. Many results based on the recent cosmic run were shown. A special Workshop on SUSY, described in a separate section, took place the day before the plenary. At the meeting, we had also two special DPG presentations on “Tracker and Muon alignment with CRAFT” (Ernesto Migliore) and “Calorimeter studies with CRAFT” (Chiara Rovelli). We had also a report from Offline (Andrea Rizzi) and Computing (Markus Klute) on the San Diego Workshop, described elsewhere in this bulletin. Tracking group (Boris Mangano). The level of sophistication of the tracking software increased significantly over the last few months: V0 (K0 and Λ) reconstr...

  6. q-Analogue of Wright Function

    Directory of Open Access Journals (Sweden)

    Moustafa El-Shahed

    2008-05-01

    Full Text Available We introduce a q-analogues of Wright function and its auxiliary functions as Barnes integral representations and series expansion. The relations between q-analogues of Wright function and some other functions are investigated.

  7. The radioisotope complex project “RIC-80” at the Petersburg Nuclear Physics Institute

    Energy Technology Data Exchange (ETDEWEB)

    Panteleev, V. N., E-mail: vnp@pnpi.spb.ru; Barzakh, A. E.; Batist, L. Kh.; Fedorov, D. V.; Ivanov, V. S.; Moroz, F. V.; Molkanov, P. L.; Orlov, S. Yu.; Volkov, Yu. M. [NRC “Kurchatov Institute” PNPI, 188300 Gatchina (Russian Federation)

    2015-12-15

    The high current cyclotron C-80 capable of producing 40-80 MeV proton beams with a current of up to 200 μA has been constructed at Petersburg Nuclear Physics Institute. One of the main goals of the C-80 is the production of a wide spectrum of medical radionuclides for diagnostics and therapy. The project development of the radioisotope complex RIC-80 (radioisotopes at the cyclotron C-80) at the beam of C-80 has been completed. The RIC-80 complex is briefly discussed in this paper. The combination of the mass-separator with the target-ion source device, available at one of the new target stations for on-line or semi on-line production of a high purity separated radioisotopes, is explored in greater detail. The results of target and ion source tests for a mass-separator method for the production of high purity radioisotopes {sup 82}Sr and {sup 223,224}Ra are also presented.

  8. Projecting the release of carbon from permafrost soils using a perturbed physics ensemble

    Science.gov (United States)

    MacDougall, A. H.; Knutti, R.

    2015-12-01

    The soils of the Northern Hemisphere permafrost region are estimated to contain 1100 to 1500 Pg of carbon (Pg C). A substantial fraction of this carbon has been frozen and therefore protected from microbial decay for millennia. As anthropogenic climate warming progresses much of this permafrost is expected to thaw. Here we conduct perturbed physics experiments on a climate model of intermediate complexity, with an improved permafrost carbon module, to estimate with formal uncertainty bounds the release of carbon from permafrost soils by year 2100 and 2300. We estimate that by 2100 the permafrost region may release between 56 (13 to 118) Pg C under Representative Concentration Pathway (RCP) 2.6 and 102 (27 to 199) Pg C under RCP 8.5, with substantially more to be released under each scenario by year 2300. A subset of 25 model variants were projected 8000 years into the future under continued RCP 4.5 and 8.5 forcing. Under the high forcing scenario the permafrost carbon pool decays away over several thousand years. Under the moderate scenario forcing a remnant near-surface permafrost region persists in the high Arctic which develops a large permafrost carbon pool, leading to global recovery of the pool beginning in mid third millennium of the common era (CE). Overall our simulations suggest that the permafrost carbon cycle feedback to climate change will make a significant but not cataclysmic contribution to climate change over the next centuries and millennia.

  9. Particle physics seminar: Muon radiography of volcanoes and the MU-RAY project

    CERN Multimedia

    Université de Genève

    2011-01-01

    UNIVERSITE DE GENEVE Ecole de physique Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 Tél: (022) 379 62 73 Fax: (022) 379 69 92   Wednesday 25  May 2011 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium Muon radiography of volcanoes and the MU-RAY project Par Prof. Paolo Strolin, Università Federico II and INFN, Napoli Thanks to their penetration power, high energy muons generated in the interactions of cosmic rays with the Earth’s atmosphere offer the possibility to perform “muon radiographies” of geological structures and in particular volcanoes. The principle is similar to that of the imaging of the interior of human body through the observation of the absorption of X rays. Muon radiography has been first applied in 1970 to the search of unknown burial chambers in the Chefren’s pyramid. In the years 2000, the technique has been ...

  10. HTGR reactor physics, thermal-hydraulics and depletion uncertainty analysis: a proposed IAEA coordinated research project

    International Nuclear Information System (INIS)

    The continued development of High Temperature Gas Cooled Reactors (HTGRs) requires verification of HTGR design and safety features with reliable high fidelity physics models and robust, efficient, and accurate codes. The predictive capability of coupled neutronics/thermal hydraulics and depletion simulations for reactor design and safety analysis can be assessed with sensitivity analysis and uncertainty analysis methods. In order to benefit from recent advances in modeling and simulation and the availability of new covariance data (nuclear data uncertainties) extensive sensitivity and uncertainty studies are needed for quantification of the impact of different sources of uncertainties on the design and safety parameters of HTGRs. Uncertainty and sensitivity studies are an essential component of any significant effort in data and simulation improvement. In February 2009, the Technical Working Group on Gas-Cooled Reactors recommended that the proposed IAEA Coordinated Research Project (CRP) on the HTGR Uncertainty Analysis in Modeling be implemented. In the paper the current status and plan are presented. The CRP will also benefit from interactions with the currently ongoing OECD/NEA Light Water Reactor (LWR) UAM benchmark activity by taking into consideration the peculiarities of HTGR designs and simulation requirements. (author)

  11. The radioisotope complex project “RIC-80” at the Petersburg Nuclear Physics Institute

    International Nuclear Information System (INIS)

    The high current cyclotron C-80 capable of producing 40-80 MeV proton beams with a current of up to 200 μA has been constructed at Petersburg Nuclear Physics Institute. One of the main goals of the C-80 is the production of a wide spectrum of medical radionuclides for diagnostics and therapy. The project development of the radioisotope complex RIC-80 (radioisotopes at the cyclotron C-80) at the beam of C-80 has been completed. The RIC-80 complex is briefly discussed in this paper. The combination of the mass-separator with the target-ion source device, available at one of the new target stations for on-line or semi on-line production of a high purity separated radioisotopes, is explored in greater detail. The results of target and ion source tests for a mass-separator method for the production of high purity radioisotopes 82Sr and 223,224Ra are also presented

  12. The Laconia, New Hampshire bottom ash paving project: Volume 3, Physical Performance Testing Report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Bottom ash is the principal waste stream from the combustion of municipal solid waste (MSW). It is comprised of grate ash (97%), the slag material discharged at the end of the grate system, and grate sifting (3%), the material that melts or falls through the grate structure. This project was conducted to demonstrate the feasibility of using municipal solid waste grate ash as an aggregate substitute in the construction of a pavement binder course for a portion of Rt. 3 in Laconia, New Hampshire. The research was conducted over a two year period during 1993 and 1994. This study is the culmination of an earlier two year characterization study between 1990 and 1992 that documented the physical and environmental characteristics of the bottom ash as it was produced at the Concord, N.H. waste-to-energy (@) facility and used in an asphaltic binder course. Together, these two studies provide a complete evaluation of the potential for using grate ash or bottom ash in asphalt binder course or as recycled asphalt pavement (RAP) in base courses in pavements.

  13. Teaching physics using project-based engineering curriculum with a theme of alternative energy

    Science.gov (United States)

    Tasior, Bryan

    The Next Generation Science Standards (NGSS) provide a new set of science standards that, if adopted, shift the focus from content knowledge-based to skill-based education. Students will be expected to use science to investigate the natural world and solve problems using the engineering design process. The world also is facing an impending crisis related to climate, energy supply and use, and alternative energy development. Education has an opportunity to help provide the much needed paradigm shift from our current methods of providing the energy needs of society. The purpose of this research was to measure the effectiveness of a unit that accomplishes the following objectives: uses project-based learning to teach the engineering process and standards of the NGSS, addresses required content expectations of energy and electricity from the HSCE's, and provides students with scientific evidence behind issues (both environmental and social/economic) relating to the energy crisis and current dependence of fossil fuels as our primary energy source. The results of the research indicate that a physics unit can be designed to accomplish these objectives. The unit that was designed, implemented and reported here also shows that it was highly effective at improving students' science content knowledge, implementing the engineering design standards of the NGSS, while raising awareness, knowledge and motivations relating to climate and the energy crisis.

  14. Regulation of breast cancer cell behaviours by the physical microenvironment constructed via projection microstereolithography.

    Science.gov (United States)

    Yang, Wenguang; Yu, Haibo; Li, Gongxin; Wang, Bo; Wang, Yuechao; Liu, Lianqing

    2016-05-26

    A considerable number of studies have examined how intrinsic factors regulate breast cancer cell behaviours; however, physical microenvironmental cues may also modulate cellular morphology, proliferation, and migration and mechanical properties. In the present study, the surrounding microenvironment of breast cancer cells was constructed using projection microstereolithography, enabling the investigation of the external environment's effects on breast cancer cell behaviours. A poly(ethylene) glycol diacrylate (PEGDA) solution was polymerized by programmable ultraviolet exposure to create arbitrary shapes with high biocompatibility, efficiency, flexibility and repeatability, and the resistance to cell attachment enabled the PEGDA coated film to hinder cell adhesion, allowing cells to grow in specific patterns. Furthermore, breast cancer cell morphology and mechanical properties were modified by altering the microenvironment. Proliferation was higher in breast cancer as compared to normal cells, consistent with the primary characteristic of malignant tumors. Moreover, breast cancer cells migrated more rapidly when grown in a narrow channel as compared to a wider channel. These findings enhance our understanding of the role of the microenvironment in breast cancer cell behaviours and can provide a basis for developing effective anticancer therapies. PMID:27072847

  15. ITER physics R and D assessment for confinement and plasma performance projections

    International Nuclear Information System (INIS)

    The ranges of confinement-relevant (dimensional and dimensionless) plasma parameters for major tokamaks (JET, JT-60U, TFTR, DIII-D, ...) that are expected to contribute to the ITER Physics R and D in the 1990s have been analyzed to characterize confinement and plasma performance in ITER-like designs. The author finds that the largest tokamaks (JET, JT-60U) should be able to demonstrate H-mode operation (with ELMs, as in ITER) with nτETi values within an order of magnitude of those required in ITER and have relevant dimensionless plasma parameters (p/a, v*, etc.) within a factor 2 of those in ITER. Extrapolations from dimensionally similar discharges in DIII-D and JET show high-Q/ignition operation in ITER-like plasmas at plasma currents (∼16 MA) well below the nominal (22-MA) design value. Another critical issue for achieving ignition-level plasma performance is the anomalous alpha particle effects, mainly the 'toroidal Alfven eigenmode' (TAE mode). The D-T experiments in TFTR and JET (and simulations using fast beam ions) should realize alpha particle (fast-ion) parameters roughly similar, in relation to TAE mode thresholds, to those projected for ITER. He judges that present-day tokamaks will provide a sufficient database (by the mid-1990s) on H-mode confinement (with ELMs) and possible anomalous alpha particle effects at relevant dimensionless parameters that are expected to be adequate for ITER purposes

  16. The radioisotope complex project "RIC-80" at the Petersburg Nuclear Physics Institute

    Science.gov (United States)

    Panteleev, V. N.; Barzakh, A. E.; Batist, L. Kh.; Fedorov, D. V.; Ivanov, V. S.; Moroz, F. V.; Molkanov, P. L.; Orlov, S. Yu.; Volkov, Yu. M.

    2015-12-01

    The high current cyclotron C-80 capable of producing 40-80 MeV proton beams with a current of up to 200 μA has been constructed at Petersburg Nuclear Physics Institute. One of the main goals of the C-80 is the production of a wide spectrum of medical radionuclides for diagnostics and therapy. The project development of the radioisotope complex RIC-80 (radioisotopes at the cyclotron C-80) at the beam of C-80 has been completed. The RIC-80 complex is briefly discussed in this paper. The combination of the mass-separator with the target-ion source device, available at one of the new target stations for on-line or semi on-line production of a high purity separated radioisotopes, is explored in greater detail. The results of target and ion source tests for a mass-separator method for the production of high purity radioisotopes 82Sr and 223,224Ra are also presented.

  17. Superconductive analogue of spin glasses

    International Nuclear Information System (INIS)

    The properties of granular superconductors in magnetic fields, namely the existence of a new superconductive state analogue of the low-temperature superconductive state in spin glasses are discussed in the frame of the infinite-range model and the finite-range models. Experiments for elucidation of spin-glass superconductive state in real systems are suggested. 30 refs

  18. Novel acetylcholine and carbamoylcholine analogues

    DEFF Research Database (Denmark)

    Hansen, Camilla Petrycer; Jensen, Anders Asbjørn; Christensen, Jeppe K.;

    2008-01-01

    A series of carbamoylcholine and acetylcholine analogues were synthesized and characterized pharmacologically at neuronal nicotinic acetylcholine receptors (nAChRs). Several of the compounds displayed low nanomolar binding affinities to the alpha 4beta 2 nAChR and pronounced selectivity for this ...

  19. Conceptual design project: Accelerator complex for nuclear physics studies and boron neutron capture therapy application at the Yerevan Physics Institute (YerPhI) Yerevan, Armenia

    Energy Technology Data Exchange (ETDEWEB)

    Avagyan, R.H.; Kerobyan, I.A.

    2015-07-15

    The final goal of the proposed project is the creation of a Complex of Accelerator Facilities at the Yerevan Physics Institute (CAF YerPhI) for nuclear physics basic researches, as well as for applied programs including boron neutron capture therapy (BNCT). The CAF will include the following facilities: Cyclotron C70, heavy material (uranium) target/ion source, mass-separator, LINAC1 (0.15–1.5 MeV/u) and LINAC2 (1.5–10 MeV/u). The delivered by C70 proton beams with energy 70 MeV will be used for investigations in the field of basic nuclear physics and with energy 30 MeV for use in applications.

  20. Conceptual design project: Accelerator complex for nuclear physics studies and boron neutron capture therapy application at the Yerevan Physics Institute (YerPhI) Yerevan, Armenia

    Science.gov (United States)

    Avagyan, R. H.; Kerobyan, I. A.

    2015-07-01

    The final goal of the proposed project is the creation of a Complex of Accelerator Facilities at the Yerevan Physics Institute (CAF YerPhI) for nuclear physics basic researches, as well as for applied programs including boron neutron capture therapy (BNCT). The CAF will include the following facilities: Cyclotron C70, heavy material (uranium) target/ion source, mass-separator, LINAC1 (0.15-1.5 MeV/u) and LINAC2 (1.5-10 MeV/u). The delivered by C70 proton beams with energy 70 MeV will be used for investigations in the field of basic nuclear physics and with energy 30 MeV for use in applications.

  1. Conceptual design project: Accelerator complex for nuclear physics studies and boron neutron capture therapy application at the Yerevan Physics Institute (YerPhI) Yerevan, Armenia

    International Nuclear Information System (INIS)

    The final goal of the proposed project is the creation of a Complex of Accelerator Facilities at the Yerevan Physics Institute (CAF YerPhI) for nuclear physics basic researches, as well as for applied programs including boron neutron capture therapy (BNCT). The CAF will include the following facilities: Cyclotron C70, heavy material (uranium) target/ion source, mass-separator, LINAC1 (0.15–1.5 MeV/u) and LINAC2 (1.5–10 MeV/u). The delivered by C70 proton beams with energy 70 MeV will be used for investigations in the field of basic nuclear physics and with energy 30 MeV for use in applications

  2. PHYSICS

    CERN Multimedia

    D. Futyan

    A lot has transpired on the “Physics” front since the last CMS Bulletin. The summer was filled with preparations of new Monte Carlo samples based on CMSSW_3, the finalization of all the 10 TeV physics analyses [in total 50 analyses were approved] and the preparations for the Physics Week in Bologna. A couple weeks later, the “October Exercise” commenced and ran through an intense two-week period. The Physics Days in October were packed with a number of topics that are relevant to data taking, in a number of “mini-workshops”: the luminosity measurement, the determination of the beam spot and the measurement of the missing transverse energy (MET) were the three main topics.  Physics Week in Bologna The second physics week in 2009 took place in Bologna, Italy, on the week of Sep 7-11. The aim of the week was to review and establish how ready we are to do physics with the early collisions at the LHC. The agenda of the week was thus pac...

  3. PHYSICS

    CERN Multimedia

    D. Futyan

    A lot has transpired on the “Physics” front since the last CMS Bulletin. The summer was filled with preparations of new Monte Carlo samples based on CMSSW_3, the finalization of all the 10 TeV physics analyses [in total 50 analyses were approved] and the preparations for the Physics Week in Bologna. A couple weeks later, the “October Exercise” commenced and ran through an intense two-week period. The Physics Days in October were packed with a number of topics that are relevant to data taking, in a number of “mini-workshops”: the luminosity measurement, the determination of the beam spot and the measurement of the missing transverse energy (MET) were the three main topics.   Physics Week in Bologna The second physics week in 2009 took place in Bologna, Italy, on the week of Sep 7-11. The aim of the week was to review and establish (we hoped) the readiness of CMS to do physics with the early collisions at the LHC. The agenda of the...

  4. A Post-Project Assessment of the Provo River Restoration Project: Channel Design, Reconfiguration, and the Re-Establishment of Critical Physical Processes

    OpenAIRE

    Goetz, Randy Ray

    2008-01-01

    A physical assessment of the Provo River Restoration Project was undertaken in order to determine how alterations to the channel were designed, the nature of as-built channel morphology, and the performance of the reconfigured channel in terms of achieving frequent (2-year recurrence) bankfull discharge and increasing transient storage. Measures of channelized and reconfigured channel morphology were obtained using total station survey, digital aerial photography, and pebble counts. Results o...

  5. Fuel Thermo-physical Characterization Project. Fiscal Year 2014 Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Burkes, Douglas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Casella, Andrew M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Buck, Edgar C. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Casella, Amanda J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Edwards, Matthew K. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); MacFarlan, Paul J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Pool, Karl N. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Slonecker, Bruce D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Smith, Frances N. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Steen, Franciska H. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-03-15

    The Office of Material Management and Minimization (M3) Reactor Conversion Fuel Thermo-Physical Characterization Project at Pacific Northwest National Laboratory (PNNL) was tasked with using PNNL facilities and processes to receive irradiated low enriched uranium–molybdenum (LEU-Mo) fuel plate samples and perform analysis in support of the M3 Reactor Conversion Program. This work is in support of the M3 Reactor Conversion Fuel Development Pillar that is managed by Idaho National Laboratory. The primary research scope was to determine the thermo-physical properties as a function of temperature and burnup. Work conducted in Fiscal Year (FY) 2014 complemented measurements performed in FY 2013 on four additional irradiated LEU-Mo fuel plate samples. Specifically, the work in FY 2014 investigated the influence of different processing methods on thermal property behavior, the absence of aluminum alloy cladding on thermal property behavior for additional model validation, and the influence of higher operating surface heat flux / more aggressive irradiation conditions on thermal property behavior. The model developed in FY 2013 and refined in FY 2014 to extract thermal properties of the U-Mo alloy from the measurements conducted on an integral fuel plate sample (i.e., U-Mo alloy with a thin Zr coating and clad in AA6061) continues to perform very well. Measurements conducted in FY 2014 on samples irradiated under similar conditions compare well to measurements performed in FY 2013. In general, there is no gross influence of fabrication method on thermal property behavior, although the difference in LEU-Mo foil microstructure does have a noticeable influence on recrystallization of grains during irradiation. Samples irradiated under more aggressive irradiation conditions, e.g., higher surface heat flux, revealed lower thermal conductivity when compared to samples irradiated at moderate surface heat fluxes, with the exception of one sample. This report documents thermal

  6. PHYSICS

    CERN Document Server

    J. Incandela

    The all-plenary format of the CMS week in Cyprus gave the opportunity to the conveners of the physics groups to present the plans of each physics analysis group for tackling early physics analyses. The presentations were complete, so all are encouraged to browse through them on the Web. There is a wealth of information on what is going on, by whom and on what basis and priority. The CMS week was followed by two CMS “physics events”, the ICHEP08 days and the physics days in July. These were two weeks dedicated to either the approval of all the results that would be presented at ICHEP08, or to the review of all the other Monte-Carlo based analyses that were carried out in the context of our preparations for analysis with the early LHC data (the so-called “2008 analyses”). All this was planned in the context of the beginning of a ramp down of these Monte Carlo efforts, in anticipation of data.  The ICHEP days are described below (agenda and talks at: http://indic...

  7. PHYSICS

    CERN Multimedia

    Joe Incandela

    There have been two plenary physics meetings since the December CMS week. The year started with two workshops, one on the measurements of the Standard Model necessary for “discovery physics” as well as one on the Physics Analysis Toolkit (PAT). Meanwhile the tail of the “2007 analyses” is going through the last steps of approval. It is expected that by the end of January all analyses will have converted to using the data from CSA07 – which include the effects of miscalibration and misalignment. January Physics Days The first Physics Days of 2008 took place on January 22-24. The first two days were devoted to comprehensive re¬ports from the Detector Performance Groups (DPG) and Physics Objects Groups (POG) on their planning and readiness for early data-taking followed by approvals of several recent studies. Highlights of POG presentations are included below while the activities of the DPGs are covered elsewhere in this bulletin. January 24th was devo...

  8. On possible problems of physics, chemistry and technology of antimatter for projects of spaceships

    International Nuclear Information System (INIS)

    Full text:Great interest is paid on possibility of obtaining intensive beams of positrons (probably also other antiparticles) at reorganization of physical vacuum in strong fields (for example, in an electric field of modern super-power laser beams (http://infox.ru/science/lab/2008/11/18/antimatter.phtml) and on accelerators. It can possibly be related with creation of space solar factories on the Moon or asteroids, etc. with use of the transformed energy of radiation of the Sun to electric energy and also space for manufacture and storages of positrons. The essence of the method should consist in generation by means of the transformed energy of the Sun on accelerators or any other methods of beams of fast positrons with their subsequent delay up to temperatures of the order 0,5 K in some closed area of a space. Thus, very significant stocks of positrons could be created. Gathering of such positrons in magnetic traps in conditions of a space can become rather effective method of accumulation of antimatter by means transformations of energy of the sun (http://www.portalus.ru/modules/science/data/files/prokopiev/Project-Prokop-Paper.pdf). At the modern level of development of technologies it is not necessary to obtained much antimatter. Besides this process is very expensive. Therefore probably really to speak only about tens or hundreds nanograms of generated antimatter. This quantity of antimatter, apparently, would suffice for creation of space vehicles (SV) with the sizes in nano-or a micron range (http://www.portalus.ru/modules/science/data/files/prokopiev/Antimatter-Positronics-_ProektEngRus.doc). This fantastic assumption is not deprived sense in a context of modern development of nanotechnologies in the World. All the sizes long devices and details such SV should not exceed the sizes of nano- and micron ranges. (author)

  9. The IT studens' project activity for the formation of the university information educational environment in physics

    OpenAIRE

    Баранов, А. В.; Baranov, A. V.

    2016-01-01

    The article discusses the experience of the IT students’ project activity in learning physics at the Novosibirsk State Technical University. The students design software for educational purposes in the electronic information-educational environment В статье рассматривается опыт организации проектной деятельности студентов IT направлений при обучении физике в Новосибирском государственном техническом университете. Студенты разрабатывают программные продукты учебного назначения для электронн...

  10. Physics

    CERN Document Server

    Cullen, Katherine

    2005-01-01

    Defined as the scientific study of matter and energy, physics explains how all matter behaves. Separated into modern and classical physics, the study attracts both experimental and theoretical physicists. From the discovery of the process of nuclear fission to an explanation of the nature of light, from the theory of special relativity to advancements made in particle physics, this volume profiles 10 pioneers who overcame tremendous odds to make significant breakthroughs in this heavily studied branch of science. Each chapter contains relevant information on the scientist''s childhood, research, discoveries, and lasting contributions to the field and concludes with a chronology and a list of print and Internet references specific to that individual.

  11. Natural Analogues of CO2 Geological Storage; Analogos Naturales del Almacenamiento Geologico de CO2

    Energy Technology Data Exchange (ETDEWEB)

    Perez del Villar, L.; Pelayo, M.; Recreo, F.

    2007-07-20

    Geological storage of carbon dioxide is nowadays, internationally considered as the most effective method for greenhouse gas emission mitigation, in order to minimize the global climate change universally accepted. Nevertheless, the possible risks derived of this long-term storage have a direct influence on its public acceptance. Among the favourable geological formations to store CO2, depleted oil and gas fields, deep saline reservoirs, and unamiable coal seams are highlighted. One of the most important objectives of the R and D projects related to the CO2 geological storage is the evaluation of the CO2 leakage rate through the above mentioned geological formations. Therefore, it is absolutely necessary to increase our knowledge on the interaction among CO2, storage and sealing formations, as well as on the flow paths and the physical resistance of the sealing formation. The quantification of the CO2 leakage rate is essential to evaluate the effects on the human and animal health, as well as for the ecosystem and water quality. To achieve these objectives, the study of the natural analogues is very useful in order to know the natural leakage rate to the atmosphere, its flow paths, the physical, chemical and mineralogical modifications due to the long term interaction processes among the CO2 and the storage and sealing formations, as well as the effects on the groundwaters and ecosystems. In this report, we have tried to summarise the main characteristics of the natural reservoirs and surficial sources of CO2, which are both natural analogues of the geological storage and CO2 leakage, studied in EEUU, Europe and Australia. The main objective of this summary is to find the possible applications for long-term risk prediction and for the performance assessment by means of conceptual and numerical modelling, which will allow to validate the predictive models of the CO2 storage behaviour, to design and develop suitable monitoring techniques to control the CO2 behaviour

  12. PHYSICS

    CERN Multimedia

    Chris Hill

    2012-01-01

    The months that have passed since the last CMS Bulletin have been a very busy and exciting time for CMS physics. We have gone from observing the very first 8TeV collisions produced by the LHC to collecting a dataset of the collisions that already exceeds that recorded in all of 2011. All in just a few months! Meanwhile, the analysis of the 2011 dataset and publication of the subsequent results has continued. These results come from all the PAGs in CMS, including searches for the Higgs boson and other new phenomena, that have set the most stringent limits on an ever increasing number of models of physics beyond the Standard Model including dark matter, Supersymmetry, and TeV-scale gravity scenarios, top-quark physics where CMS has overtaken the Tevatron in the precision of some measurements, and bottom-quark physics where CMS made its first discovery of a new particle, the Ξ*0b baryon (candidate event pictured below). Image 2:  A Ξ*0b candidate event At the same time POGs and PAGs...

  13. PHYSICS

    CERN Multimedia

    Guenther Dissertori

    The time period between the last CMS week and this June was one of intense activity with numerous get-together targeted at addressing specific issues on the road to data-taking. The two series of workshops, namely the “En route to discoveries” series and the “Vertical Integration” meetings continued.   The first meeting of the “En route to discoveries” sequence (end 2007) had covered the measurements of the Standard Model signals as necessary prerequisite to any claim of signals beyond the Standard Model. The second meeting took place during the Feb CMS week and concentrated on the commissioning of the Physics Objects, whereas the third occurred during the April Physics Week – and this time the theme was the strategy for key new physics signatures. Both of these workshops are summarized below. The vertical integration meetings also continued, with two DPG-physics get-togethers on jets and missing ET and on electrons and photons. ...

  14. PHYSICS

    CERN Multimedia

    D. Acosta

    2011-01-01

    Since the last CMS Week, all physics groups have been extremely active on analyses based on the full 2010 dataset, with most aiming for a preliminary measurement in time for the winter conferences. Nearly 50 analyses were approved in a “marathon” of approval meetings during the first two weeks of March, and the total number of approved analyses reached 90. The diversity of topics is very broad, including precision QCD, Top, and electroweak measurements, the first observation of single Top production at the LHC, the first limits on Higgs production at the LHC including the di-tau final state, and comprehensive searches for new physics in a wide range of topologies (so far all with null results unfortunately). Most of the results are based on the full 2010 pp data sample, which corresponds to 36 pb-1 at √s = 7 TeV. This report can only give a few of the highlights of a very rich physics program, which is listed below by physics group...

  15. Visual analogue measurement of pain.

    OpenAIRE

    Campbell, W. I.; Lewis, S.

    1990-01-01

    Two separate studies were carried out to determine if three visual analogue scales for various feelings including pain could be marked consistently by patients, without reference to previously completed scales. Sixty patients undergoing extraction of their lower third molars had measurements of acute preoperative anxiety, expected postoperative pain and postoperative perceived pain three times in quick succession. There was no significant difference between the three measurements for any of t...

  16. Policy issues in space analogues

    Science.gov (United States)

    Auger, Robin N.; Facktor, Debra D.

    Space mission planning is increasingly focusing on destinations beyond Earth orbit. Advancements in technology will inevitably be required to enable long-duration human spaceflight missions, and breakthroughs in the policy arena will also be needed to achieve success in such missions. By exploring how policy issues have been addressed in analogous extreme environments, policymakers can develop a framework for addressing these issues as they apply to long-term human spaceflight. Policy issues that need to be addressed include: crew selection, training, organization, and activities, medical testing, illness, injury, and death; communication; legal accountability and liability; mission safety and risk management; and environmental contamination. This paper outlines the approach of a study underway by The George Washington University and ANSER to examine how these policy issues have been addressed in several analogues and how the experiences of these analogues can help formulate policies for long-duration human spaceflight missions. Analogues being studied include Antarctic bases, submarine voyages, undersea stations, Biosphere 2, and the U.S. Skylab and Russian Mir space stations.

  17. Needs analysis and project schedule for the Los Alamos National Laboratory (LANL) Health Physics Analysis Laboratory (HPAL) upgrade

    International Nuclear Information System (INIS)

    This report is a needs assessment and project schedule for the Health Physics Analysis Laboratory (HPAL) upgrade project at Los Alamos National Laboratory (LANL). After reviewing current and projected HPAL operations, two custom-developed laboratory information management systems (LIMS) for similar facilities were reviewed; four commercially available LIMS products were also evaluated. This project is motivated by new regulations for radiation protection and training and by increased emphasis on quality assurance (QA). HPAL data are used to: protect the health of radiation workers; document contamination levels for transportation of radioactive materials and for release of materials to the public for uncontrolled use; and verify compliance with environmental emission regulations. Phase 1 of the HPAL upgrade project concentrates on four types of counting instruments which support in excess of 90% of the sample workload at the existing central laboratories. Phase 2 is a refinement phase and also integrates summary-level databases on the central Health, Safety, and Environment (HSE) VAX. Phase 3 incorporates additional instrument types and integrates satellite laboratories into the HPAL LIMS. Phase 1 will be a multi-year, multimillion dollar project. The temptation to approach the upgrade of the HPAL program in a piece meal fashion should be avoided. This is a major project, with clearly-defined goals and priorities, and should be approached as such. Major programmatic and operational impacts will be felt throughout HSE as a result of this upgrade, so effective coordination with key customer contacts will be critical

  18. Physics of thermo-nuclear fusion and the ITER project; La physique de la fusion thermonucleaire et le projet ITER

    Energy Technology Data Exchange (ETDEWEB)

    Garin, P. [CEA Cadarache, Dept. de Recherches sur la Fusion Controlee - DRFC, 13 - Saint-Paul-lez-Durance (France)

    2003-01-01

    This document gathers the slides of the 6 contributions to the workshop 'the physics of thermo-nuclear fusion and the ITER project': 1) the feasibility of magnetic confinement and the issue of heat recovery, 2) heating and current generation in tokamaks, 3) the physics of wall-plasma interaction, 4) recent results at JET, 5) inertial confinement and fast ignition, and 6) the technology of fusion machines based on magnetic confinement. This document presents the principles of thermo-nuclear fusion machines and gives a lot of technical information about JET, Tore-Supra and ITER.

  19. Natural analogues, paradigm for manmade repositories for radioactive wastes

    International Nuclear Information System (INIS)

    projects. In this way it is expected to understand better how the results of the natural analogues may be applied to help to solve the geological disposal safety issues and so be able to fill the gap between decision makers, public acceptance and waste management understanding. The main conclusions are that the natural analogues can play an important role in explaining some of the essential components of the safety case and can attract very large audience from the large public in the feasibility of deep manmade repository and implicit of the nuclear energy. The challenge is to build and maintain an integrated programme including face-to-face presentations during site visits, publications for technical and non-technical audiences, radio, TV, film and, especially now, the internet.(author)

  20. Design of a saturated analogue and digital current transducer

    International Nuclear Information System (INIS)

    This project describes the development of a new analogue and digital current transducer, providing a range of new theoretical design methods for these novel devices. The main control feature is the limit cycling operation, and the novel use of the embedded sigma-delta modulator sensor structure to derive a low component count digital sensor. The research programme was initiated into the design, development and evaluation of a novel non-Hall sensing analogue and digital current transducer. These transducers are used for measurement of high currents in power systems applications. The investigation is concerned with a new design which uses a magnetic ferrite core without an air gap for current measurement. The motivation for this work was to design a new control circuit which provides a low component count, and utilises the non-linear properties of the magnetic ferrite core to transmit direct current. The use of a limit cycle control circuit was believed to be particularly suitable for the analogue and digital transducers, for two main reasons: the low component count, and the output signal is directly digital. In line with the motivations outlined above, the outcome of the research has witnessed the design, development and evaluation of a practically realisable analogue and digital current transducer. The design procedure, which is documented in this thesis, is considered to be a major contribution to the field of transducers design and development using a control systems approach. Mathematical models for both analogue and digital transducers were developed and the resulting model based predictions were found to be in good agreement with measured results. Simplification of the new model sensing device was achieved by approximating the non-linear ferrite core using FFT analysis. This is also considered to be a significant contribution. The development analogue and digital current censors employed a sampled data control systems design and utilised limit cycling

  1. PHYSICS

    CERN Multimedia

    the PAG conveners

    2011-01-01

    The delivered LHC integrated luminosity of more than 1 inverse femtobarn by summer and more than 5 by the end of 2011 has been a gold mine for the physics groups. With 2011 data, we have submitted or published 14 papers, 7 others are in collaboration-wide review, and 75 Physics Analysis Summaries have been approved already. They add to the 73 papers already published based on the 2010 and 2009 datasets. Highlights from each physics analysis group are described below. Heavy ions Many important results have been obtained from the first lead-ion collision run in 2010. The published measurements include the first ever indications of Υ excited state suppression (PRL synopsis), long-range correlation in PbPb, and track multiplicity over a wide η range. Preliminary results include the first ever measurement of isolated photons (showing no modification), J/ψ suppression including the separation of the non-prompt component, further study of jet fragmentation, nuclear modification factor...

  2. PHYSICS

    CERN Multimedia

    C. Hill

    2012-01-01

      The period since the last CMS Bulletin has been historic for CMS Physics. The pinnacle of our physics programme was an observation of a new particle – a strong candidate for a Higgs boson – which has captured worldwide interest and made a profound impact on the very field of particle physics. At the time of the discovery announcement on 4 July, 2012, prominent signals were observed in the high-resolution H→γγ and H→ZZ(4l) modes. Corroborating excess was observed in the H→W+W– mode as well. The fermionic channel analyses (H→bb, H→ττ), however, yielded less than the Standard Model (SM) expectation. Collectively, the five channels established the signal with a significance of five standard deviations. With the exception of the diphoton channel, these analyses have all been updated in the last months and several new channels have been added. With improved analyses and more than twice the i...

  3. PHYSICS

    CERN Document Server

    Darin Acosta

    2010-01-01

    The collisions last year at 900 GeV and 2.36 TeV provided the long anticipated collider data to the CMS physics groups. Quite a lot has been accomplished in a very short time. Although the delivered luminosity was small, CMS was able to publish its first physics paper (with several more in preparation), and commence the commissioning of physics objects for future analyses. Many new performance results have been approved in advance of this CMS Week. One remarkable outcome has been the amazing agreement between out-of-the-box data with simulation at these low energies so early in the commissioning of the experiment. All of this is testament to the hard work and preparation conducted beforehand by many people in CMS. These analyses could not have happened without the dedicated work of the full collaboration on building and commissioning the detector, computing, and software systems combined with the tireless work of many to collect, calibrate and understand the data and our detector. To facilitate the efficien...

  4. PHYSICS

    CERN Multimedia

    D. Acosta

    2010-01-01

    The Physics Groups are actively engaged on analyses of the first data from the LHC at 7 TeV, targeting many results for the ICHEP conference taking place in Paris this summer. The first large batch of physics approvals is scheduled for this CMS Week, to be followed by four more weeks of approvals and analysis updates leading to the start of the conference in July. Several high priority analysis areas were organized into task forces to ensure sufficient coverage from the relevant detector, object, and analysis groups in the preparation of these analyses. Already some results on charged particle correlations and multiplicities in 7 TeV minimum bias collisions have been approved. Only one small detail remains before ICHEP: further integrated luminosity delivered by the LHC! Beyond the Standard Model measurements that can be done with these data, the focus changes to the search for new physics at the TeV scale and for the Higgs boson in the period after ICHEP. Particle Flow The PFT group is focusing on the ...

  5. PHYSICS

    CERN Multimedia

    C. Hill

    2012-01-01

      2012 has started off as a very busy year for the CMS Physics Groups. Planning for the upcoming higher luminosity/higher energy (8 TeV) operation of the LHC and relatively early Rencontres de Moriond are the high-priority activities for the group at the moment. To be ready for the coming 8-TeV data, CMS has made a concerted effort to perform and publish analyses on the 5 fb−1 dataset recorded in 2011. This has resulted in the submission of 16 papers already, including nine on the search for the Higgs boson. In addition, a number of preliminary results on the 2011 dataset have been released to the public. The Exotica and SUSY groups approved several searches for new physics in January, such as searches for W′ and exotic highly ionising particles. These were highlighted at a CERN seminar given on 24th  January. Many more analyses, from all the PAGs, including the newly formed SMP (Standard Model Physics) and FSQ (Forward and Small-x QCD), were approved in February. The ...

  6. PHYSICS

    CERN Multimedia

    L. Demortier

    Physics-wise, the CMS week in December was dominated by discussions of the analyses that will be carried out in the “next six months”, i.e. while waiting for the first LHC collisions.  As presented in December, analysis approvals based on Monte Carlo simulation were re-opened, with the caveat that for this work to be helpful to the goals of CMS, it should be carried out using the new software (CMSSW_2_X) and associated samples.  By the end of the week, the goal for the physics groups was set to be the porting of our physics commissioning methods and plans, as well as the early analyses (based an integrated luminosity in the range 10-100pb-1) into this new software. Since December, the large data samples from CMSSW_2_1 were completed. A big effort by the production group gave a significant number of events over the end-of-year break – but also gave out the first samples with the fast simulation. Meanwhile, as mentioned in December, the arrival of 2_2 meant that ...

  7. A Multidimensional Analogue of the Simpson's Formula of Integral

    CERN Document Server

    Fujii, Kazuyuki

    2009-01-01

    The Simpson's formula is obtained by approximating the integral of a function on some interval by the integral of the quadratic polynomial determined by the function. However, a multidimensional analogue of the formula has not been given as far as we know. In this paper such a formula is given. Our formula is simple and beautiful, so it may be convenient in Mathematics or Mathematical Physics.

  8. Fluorescent synthetic analogues of salmon GnRH

    Czech Academy of Sciences Publication Activity Database

    Barth, Tomislav; Barthová, J.; Kronovetr, J.; Hamáčková, J.; Kozák, P.; Hauzerová, Linda; Kouřil, J.

    Barcelona : European Aquaculture Society, 2004, s. 144-145. ISBN 90-71625-18-4. [ Aquaculture Europe 2004. International Conference Biotechnologies for Quality. Barcelona (ES), 20.10.2004-23.10.2004] R&D Projects: GA AV ČR IBS4055006; GA MZe QF3028 Institutional research plan: CEZ:AV0Z4055905 Keywords : GnRH * fluorescent * analogues Subject RIV: CE - Biochemistry

  9. Documenting the Analogue Past in Marijke van Warmerdam's Film Installations

    OpenAIRE

    Noordegraaf, J.

    2013-01-01

    Dutch visual artist Marijke van Warmerdam is best known for her film-based installations, which present simple settings or actions, such as a girl performing a handstand, in short, 16mm film loops that are projected in the gallery space. In 2011 van Warmerdam took the decision to digitize most of her film installations. From a conservation perspective this is remarkable, since the disappearance of the analogue 16mm projectors from the gallery space significantly alters the experience of van W...

  10. Application of the Alligator rivers analogue for validation of safety assessment methodologies

    International Nuclear Information System (INIS)

    Natural analogues play an important role in validation of performance assessment models by providing the possibility to study processes that have been active over scales in time and space relevant for repositories in the long term. The Swedish Nuclear Power Inspectorate (SKI) has initiated a project with the aim of validating performance assessment models based on information and data from the Alligator Rivers Analogue Project. This paper describes the initial phases and planning of the work. Some general viewpoints on validation and application of natural analogues are given. Especially the importance of uncertainties is stressed. Integrated with the validation study a scenario development exercise is performed with the purpose to describe possible external conditions for evolution of the analogue. 2 refs

  11. Application of the Alligator Rivers analogue for validation of safety assessment methodologies

    International Nuclear Information System (INIS)

    Natural analogues play an important role in validation of performance assessment models by providing the possibility to study processes that have been active over scales in time and space relevant for repositories in the long term. The Swedish Nuclear Power Inspectorate has initiated a project with the aim of validating performance assessment models based on information and data from the Alligator Rivers Analogue Project. This paper describes the initial phases and planning of the work. Some general viewpoints on validation and application of natural analogues are given; the importance of uncertainties is stressed. Integrated with the validation study, a scenario , development exercise is performed with the purpose to describe possible external conditions for evolution of the analogue. 2 refs., 1 fig

  12. How We Learn: A Motor-Learning Project for Physical Education Majors

    Science.gov (United States)

    Dail, Teresa

    2011-01-01

    One way to help physical education preservice students to think critically about the learning of physical skills is to provide hands-on experiences in which performance and learning can be seen and measured. Developing knowledge of these processes, however, requires creative and carefully planned exercises that can illustrate principles in a…

  13. Status and perspectives of atomic physics research at GSI : The new GSI accelerator project

    NARCIS (Netherlands)

    Stolker, T; Backe, H; Beyer, HF; Brauning-Demian, A; Hagmann, S; Ionescu, DC; Jungmann, K; Kluge, HJ; Kozhuharov, C; Kuhl, T; Liesen, D; Mann, R; Mokler, PH; Quint, W; Bosch, F.M.

    2003-01-01

    A short overview on the results of atomic physics research at the storage ring ESR is given followed by a presentation of the envisioned atomic physics program at the planned new GSI facility. The proposed new GSI facility will provide highest intensities of relativistic beams of both stable and uns

  14. Recombinant DNA derived monomeric insulin analogue: comparison with soluble human insulin in normal subjects.

    OpenAIRE

    Vora, J P; Owens, D R; Dolben, J; Atiea, J A; Dean, J. D.; Kang, S; Burch, A; Brange, J.

    1988-01-01

    OBJECTIVE--To compare the rate of absorption from subcutaneous tissue and the resulting hypoglycaemic effect of iodine-125 labelled soluble human insulin and a monomeric insulin analogue derived by recombinant DNA technology. DESIGN--Single blind randomised comparison of equimolar doses of 125I labelled soluble human insulin and insulin analogue. SETTING--Study in normal people at a diabetes research unit and a university department of medical physics. SUBJECTS--Seven healthy male volunteers ...

  15. What is beautiful is good because what is beautiful is desired: physical attractiveness stereotyping as projection of interpersonal goals.

    Science.gov (United States)

    Lemay, Edward P; Clark, Margaret S; Greenberg, Aaron

    2010-03-01

    The authors posit that the attribution of desirable interpersonal qualities to physically attractive targets is a projection of interpersonal goals; people desire to form and maintain close social bonds with attractive targets and then project these motivations onto those targets. Three studies support this model. Tendencies to see attractive novel targets depicted in photographs (Study 1), attractive romantic partners (Study 2), and attractive friends (Study 3) as especially interpersonally receptive and responsive were explained by perceivers' heightened desires to bond with attractive individuals. Additional findings regarding response latencies (Study 1) also supported this model. Many instances of the "beautiful is good" effect may not reflect stereotyping as it is typically construed. Rather, they may reflect projection of heightened desires to bond with beautiful people. PMID:20179314

  16. Subseabed Disposal Project annual report, FY85 to termination of project: Physical Oceanography and Water Column Geochemistry Studies, October 1984 through May 1986

    Energy Technology Data Exchange (ETDEWEB)

    Kupferman, S.L. (ed.)

    1987-05-01

    This report covers the work of the Physical Oceanography and Water Column Geochemistry (POWCG) Studies Group of the Subseabed Disposal Project (SDP) from October 1984 to termination of the project in May 1986. The overview of the work includes an introduction, general descriptions of the activities, and a summary. Detailed discussions are included as appendices. During the period of this report the POWCG Studies Group held a meeting to develop a long-term research plan for the Nares Abyssal Plain, which was recently designated as a study area for the Environmental Study Group of the SDP. The POWCG Studies Group has also planned and participated in two interdisciplinary oceanographic missions to the Nares which have resulted in the acquisition of data and samples which can be used to begin to understand the workings of the ecosystem at the site, and for developing a preliminary site assessment. The papers in the appendices have been processed for inclusion in the Energy Data Base.

  17. Subseabed Disposal Project annual report, FY85 to termination of project: Physical Oceanography and Water Column Geochemistry Studies, October 1984 through May 1986

    International Nuclear Information System (INIS)

    This report covers the work of the Physical Oceanography and Water Column Geochemistry (POWCG) Studies Group of the Subseabed Disposal Project (SDP) from October 1984 to termination of the project in May 1986. The overview of the work includes an introduction, general descriptions of the activities, and a summary. Detailed discussions are included as appendices. During the period of this report the POWCG Studies Group held a meeting to develop a long-term research plan for the Nares Abyssal Plain, which was recently designated as a study area for the Environmental Study Group of the SDP. The POWCG Studies Group has also planned and participated in two interdisciplinary oceanographic missions to the Nares which have resulted in the acquisition of data and samples which can be used to begin to understand the workings of the ecosystem at the site, and for developing a preliminary site assessment. The papers in the appendices have been processed for inclusion in the Energy Data Base

  18. PHYSICS

    CERN Document Server

    C. Hill

    2013-01-01

    In the period since the last CMS Bulletin, the LHC – and CMS – have entered LS1. During this time, CMS Physics Analysis Groups have performed more than 40 new analyses, many of which are based on the complete 8 TeV dataset delivered by the LHC in 2012 (and in some cases on the full Run 1 dataset). These results were shown at, and well received by, several high-profile conferences in the spring of 2013, including the inaugural meeting of the Large Hadron Collider    Physics Conference (LHCP) in Barcelona, and the 26th International Symposium on Lepton Photon Interactions at High Energies (LP) in San Francisco. In parallel, there have been significant developments in preparations for Run 2 of the LHC and on “future physics” studies for both Phase 1 and Phase 2 upgrades of the CMS detector. The Higgs analysis group produced five new results for LHCP including a new H-to-bb search in VBF production (HIG-13-011), ttH with H to γ&ga...

  19. PHYSICS

    CERN Multimedia

    C. Hill

    2013-01-01

    The period since the last CMS bulletin has seen the end of proton collisions at a centre-of-mass energy 8 TeV, a successful proton-lead collision run at 5 TeV/nucleon, as well as a “reference” proton run at 2.76 TeV. With these final LHC Run 1 datasets in hand, CMS Physics Analysis Groups have been busy analysing these data in preparation for the winter conferences. Moreover, despite the fact that the pp run only concluded in mid-December (and there was consequently less time to complete data analyses), CMS again made a strong showing at the Rencontres de Moriond in La Thuile (EW and QCD) where nearly 40 new results were presented. The highlight of these preliminary results was the eagerly anticipated updated studies of the properties of the Higgs boson discovered in July of last year. Meanwhile, preparations for Run 2 and physics performance studies for Phase 1 and Phase 2 upgrade scenarios are ongoing. The Higgs analysis group produced updated analyses on the full Run 1 dataset (~25 f...

  20. PHYSICS

    CERN Multimedia

    J. D'Hondt

    The Electroweak and Top Quark Workshop (16-17th of July) A Workshop on Electroweak and Top Quark Physics, dedicated on early measurements, took place on 16th-17th July. We had more than 40 presentations at the Workshop, which was an important milestone for 2007 physics analyses in the EWK and TOP areas. The Standard Model has been tested empirically by many previous experiments. Observables which are nowadays known with high precision will play a major role for data-based CMS calibrations. A typical example is the use of the Z to monitor electron and muon reconstruction in di-lepton inclusive samples. Another example is the use of the W mass as a constraint for di-jets in the kinematic fitting of top-quark events, providing information on the jet energy scale. The predictions of the Standard Model, for what concerns proton collisions at the LHC, are accurate to a level that the production of W/Z and top-quark events can be used as a powerful tool to commission our experiment. On the other hand the measure...

  1. Natural analogues of nuclear waste glass corrosion

    International Nuclear Information System (INIS)

    This report reviews and summarizes studies performed to characterize the products and processes involved in the corrosion of natural glasses. Studies are also reviewed and evaluated on how well the corrosion of natural glasses in natural environments serves as an analogue for the corrosion of high-level radioactive waste glasses in an engineered geologic disposal system. A wide range of natural and experimental corrosion studies has been performed on three major groups of natural glasses: tektite, obsidian, and basalt. Studies of the corrosion of natural glass attempt to characterize both the nature of alteration products and the reaction kinetics. Information available on natural glass was then compared to corresponding information on the corrosion of nuclear waste glasses, specifically to resolve two key questions: (1) whether one or more natural glasses behave similarly to nuclear waste glasses in laboratory tests, and (2) how these similarities can be used to support projections of the long-term corrosion of nuclear waste glasses. The corrosion behavior of basaltic glasses was most similar to that of nuclear waste glasses, but the corrosion of tektite and obsidian glasses involves certain processes that also occur during the corrosion of nuclear waste glasses. The reactions and processes that control basalt glass dissolution are similar to those that are important in nuclear waste glass dissolution. The key reaction of the overall corrosion mechanism is network hydrolysis, which eventually breaks down the glass network structure that remains after the initial ion-exchange and diffusion processes. This review also highlights some unresolved issues related to the application of an analogue approach to predicting long-term behavior of nuclear waste glass corrosion, such as discrepancies between experimental and field-based estimates of kinetic parameters for basaltic glasses

  2. Natural analogues of nuclear waste glass corrosion.

    Energy Technology Data Exchange (ETDEWEB)

    Abrajano, T.A. Jr.; Ebert, W.L.; Luo, J.S.

    1999-01-06

    This report reviews and summarizes studies performed to characterize the products and processes involved in the corrosion of natural glasses. Studies are also reviewed and evaluated on how well the corrosion of natural glasses in natural environments serves as an analogue for the corrosion of high-level radioactive waste glasses in an engineered geologic disposal system. A wide range of natural and experimental corrosion studies has been performed on three major groups of natural glasses: tektite, obsidian, and basalt. Studies of the corrosion of natural glass attempt to characterize both the nature of alteration products and the reaction kinetics. Information available on natural glass was then compared to corresponding information on the corrosion of nuclear waste glasses, specifically to resolve two key questions: (1) whether one or more natural glasses behave similarly to nuclear waste glasses in laboratory tests, and (2) how these similarities can be used to support projections of the long-term corrosion of nuclear waste glasses. The corrosion behavior of basaltic glasses was most similar to that of nuclear waste glasses, but the corrosion of tektite and obsidian glasses involves certain processes that also occur during the corrosion of nuclear waste glasses. The reactions and processes that control basalt glass dissolution are similar to those that are important in nuclear waste glass dissolution. The key reaction of the overall corrosion mechanism is network hydrolysis, which eventually breaks down the glass network structure that remains after the initial ion-exchange and diffusion processes. This review also highlights some unresolved issues related to the application of an analogue approach to predicting long-term behavior of nuclear waste glass corrosion, such as discrepancies between experimental and field-based estimates of kinetic parameters for basaltic glasses.

  3. High-energy physics strategies and future large-scale projects

    Science.gov (United States)

    Zimmermann, F.

    2015-07-01

    We sketch the actual European and international strategies and possible future facilities. In the near term the High Energy Physics (HEP) community will fully exploit the physics potential of the Large Hadron Collider (LHC) through its high-luminosity upgrade (HL-LHC). Post-LHC options include a linear e+e- collider in Japan (ILC) or at CERN (CLIC), as well as circular lepton or hadron colliders in China (CepC/SppC) and Europe (FCC). We conclude with linear and circular acceleration approaches based on crystals, and some perspectives for the far future of accelerator-based particle physics.

  4. High-Energy Physics Strategies and Future Large-Scale Projects

    CERN Document Server

    Zimmermann, F

    2015-01-01

    We sketch the actual European and international strategies and possible future facilities. In the near term the High Energy Physics (HEP) community will fully exploit the physics potential of the Large Hadron Collider (LHC) through its high-luminosity upgrade (HL-LHC). Post-LHC options include a linear e+e- collider in Japan (ILC) or at CERN (CLIC), as well as circular lepton or hadron colliders in China (CepC/SppC) and Europe (FCC). We conclude with linear and circular acceleration approaches based on crystals, and some perspectives for the far future of accelerator-based particle physics.

  5. Template polymerization of nucleotide analogues

    Science.gov (United States)

    Orgel, L. E.

    1991-01-01

    Recent work on the template-directed reactions of the natural D-nucleotides has made it clear that l-nucleotides and nucleotide-like derivatives of other sugars would strongly inhibit the formation of long oligonucleotides. Consequently, attention is focusing on molecules simpler than nucleotides that might have acted as monomers of an information transfer system. We have begun a general exploration of the template directed reactions of diverse peptide analogues. I will present work by Dr. Taifeng Wu on oxidative oligomerization of phosphorothioates and of Dr. Mary Tohidi on the cyclic polymerization of nucleoside and related cyclic pyrophosphates.

  6. FUNCTION GENERATOR FOR ANALOGUE COMPUTERS

    Science.gov (United States)

    Skramstad, H.K.; Wright, J.H.; Taback, L.

    1961-12-12

    An improved analogue computer is designed which can be used to determine the final ground position of radioactive fallout particles in an atomic cloud. The computer determines the fallout pattern on the basis of known wind velocity and direction at various altitudes, and intensity of radioactivity in the mushroom cloud as a function of particle size and initial height in the cloud. The output is then displayed on a cathode-ray tube so that the average or total luminance of the tube screen at any point represents the intensity of radioactive fallout at the geographical location represented by that point. (AEC)

  7. Analogue imprecision in MLP training

    CERN Document Server

    Edwards, PJ

    1996-01-01

    Hardware inaccuracy and imprecision are important considerations when implementing neural algorithms. This book presents a study of synaptic weight noise as a typical fault model for analogue VLSI realisations of MLP neural networks and examines the implications for learning and network performance. The aim of the book is to present a study of how including an imprecision model into a learning scheme as a"fault tolerance hint" can aid understanding of accuracy and precision requirements for a particular implementation. In addition the study shows how such a scheme can give rise to significant

  8. Physics-based Modeling of Foreign Object Damage in Ceramic Matrix Composites Project

    Data.gov (United States)

    National Aeronautics and Space Administration — In this Phase I SBIR, Firehole Technologies will develop proof-of-concept modeling framework for a multiscale physics-based modeling tool for predicting foreign...

  9. Augmentation of Virtual Space Physics Observatory Services to Expand Data Access Capabilities Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Aquilent, Inc. proposes to support the effort of Virtual Space Physics Observatory (VSPO) by developing services to expand the VSPO search capabilities, developing...

  10. Multi-Physics Computational Modeling Tool for Materials Damage Assessment Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The innovation proposed here is to provide a multi-physics modeling tool for materials damage assessment for application to future aircraft design. The software...

  11. A Physics-Based Starting Model for Gas Turbine Engines Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The objective of this proposal is to demonstrate the feasibility of producing an integrated starting model for gas turbine engines using a new physics-based...

  12. Physics-based Modeling Tools for Life Prediction and Durability Assessment of Advanced Materials Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The technical objectives of this program are: (1) to develop a set of physics-based modeling tools to predict the initiation of hot corrosion and to address pit and...

  13. Presentation of the research project: gender dimension in initial physical education teacher education in Portugal

    OpenAIRE

    Queirós, Telma Maria Gonçalves; Botelho-Gomes, Paula; Silva, Paula

    2011-01-01

    Gender dimension exists across societies and therefore education. Hence certain learning areas in particular (e.g. Physical Education (PE)) are embedded with powerful gendered practices. Recent international research has shown that physical activities within the school curriculum contribute to reinforce and development of “gender-appropriate” behaviour often considered socially and culturally legitimate. In Portugal, this is also particularly visible in some studies which argued that teachers...

  14. Are Diet and Physical Activity Patterns Related to Cigarette Smoking in Adolescents? Findings From Project EAT

    OpenAIRE

    Nicole I. Larson, MPH, RD; Mary Story, PhD, RD; Cheryl L. Perry, PhD; Dianne Neumark-Sztainer, PhD, MPH, RD; Peter J. Hannan, MStat

    2007-01-01

    Introduction An inadequate diet and physical inactivity may compound the many deleterious effects of smoking on health. Some research indicates that smoking behavior is related to other health behaviors, but little research has examined how smoking may be related to dietary intake of key nutrients, consumption of fast food, sedentary lifestyle, or weight status. The purpose of this study was to describe smoking frequency among adolescents and its relationship to physical activity and dietary ...

  15. Project W-314 Polyurea Special Protective Coating (SPC) Test Report Chemical Compatibility and Physical Characteristics Testing

    International Nuclear Information System (INIS)

    This Engineering Test report outlines the results obtained from testing polyurea on its decon factor, tank waste compatibility, and adhesion strength when subjected to a high level of gamma radiation. This report is used in conjunction with RPP-7187 Project W-314 Pit Coatings Repair Requirements Analysis, to document the fact polyurea meets the project W-314 requirements contained in HNF-SD-W314-PDS-005 and is therefore an acceptable SPC for use in W-314 pit refurbishments

  16. PHYSICS

    CERN Document Server

    V.Ciulli

    2011-01-01

    The main programme of the Physics Week held between 16th and 20th May was a series of topology-oriented workshops on di-leptons, di-photons, inclusive W, and all-hadronic final states. The goal of these workshops was to reach a common understanding for the set of objects (ID, cleaning...), the handling of pile-up, calibration, efficiency and purity determination, as well as to revisit critical common issues such as the trigger. Di-lepton workshop Most analysis groups use a di-lepton trigger or a combination of single and di-lepton triggers in 2011. Some groups need to collect leptons with as low PT as possible with strong isolation and identification requirements as for Higgs into WW at low mass, others with intermediate PT values as in Drell-Yan studies, or high PT as in the Exotica group. Electron and muon reconstruction, identification and isolation, was extensively described in the workshop. For electrons, VBTF selection cuts for low PT and HEEP cuts for high PT were discussed, as well as more complex d...

  17. Low-Income, Urban Children's Perspectives on Physical Activity: A Photovoice Project.

    Science.gov (United States)

    Heidelberger, Lindsay; Smith, Chery

    2016-06-01

    Objectives The purpose of this research was to have ethnically diverse, 9- to 13-year-olds who live in urban, low-income households use Photovoice to represent their physical activity practices and their perception of their physical activity environment. Methods Photovoice methodology was used to allow children to capture their physical activity habits and environment through photographs and interviews. The Social Cognitive Theory was used as the theoretical framework. Heights and weights were taken for all children and BMI was calculated. Photographs were analyzed by recording the content of usable photos in SPSS software. Qualitative analysis of the interview transcripts used the open coding method. Results Participants were 24 children (15 male, 9 female) living in inner city, low-income households. On average, children were 10.9 years old and the mean BMI-for-age percentile was 72 %. Children took a total of 377 pictures and 339 of these were usable. Three themes were identified across interviews and photographs, (a) types of activity, (b) social environment, and (c) physical environment where activity took place. Conclusions for Practice This study provides insight into low-income, urban children's physical activity habits and environment using a novel approach. Potential ways to increase moderate to high intensity activity among this population are to involve church-based organizations, create more safe places to play by increasing green space in urban areas, and to provide financial support for after-school programs and community centers. PMID:26694042

  18. q-bosons and the q-analogue quantized field

    International Nuclear Information System (INIS)

    The q-analogue coherent states |z >q are used to identify physical signatures for the presence of a q-analogue quantized radiation field in the | >q classical limit where |z| is large. In this quantum-optics-like limit, the fractional uncertainties of most physical quantities (momentum, position, amplitude, phase) which characterize the quantum field are O(1). They only vanish as O(1/|z|) when q = 1. However, for the number operator, N, and the N-Hamiltonian for a free q-boson gas, HN = ℎω(N + 1/2), the fractional uncertainties do still approach zero. A signature for q-boson counting statistics is that (ΔN)2/ → 0 as |z| → ∞. Except for its O(1) fractional uncertainty, the q-generalization of the Hermitian phase operator of Pegg and Barnett, φq, still exhibits normal classical behavior. The standard number-phase uncertainty-relation, ΔN Δφq = 1/2, and the approximate commutation relation, [N,φq] = i, still hold for the single-mode q-analogue quantized field. So, N and φq are almost canonically conjugate operators in the |z >q classical limit. The |z >q CS's minimize this uncertainty relation for moderate |z|2

  19. Status Report for Remediation Decision Support Project, Task 1, Activity 1.B – Physical and Hydraulic Properties Database and Interpretation

    Energy Technology Data Exchange (ETDEWEB)

    Rockhold, Mark L.

    2008-09-26

    The objective of Activity 1.B of the Remediation Decision Support (RDS) Project is to compile all available physical and hydraulic property data for sediments from the Hanford Site, to port these data into the Hanford Environmental Information System (HEIS), and to make the data web-accessible to anyone on the Hanford Local Area Network via the so-called Virtual Library. In past years efforts were made by RDS project staff to compile all available physical and hydraulic property data for Hanford sediments and to transfer these data into SoilVision{reg_sign}, a commercial geotechnical software package designed for storing, analyzing, and manipulating soils data. Although SoilVision{reg_sign} has proven to be useful, its access and use restrictions have been recognized as a limitation to the effective use of the physical and hydraulic property databases by the broader group of potential users involved in Hanford waste site issues. In order to make these data more widely available and useable, a decision was made to port them to HEIS and to make them web-accessible via a Virtual Library module. In FY08 the objectives of Activity 1.B of the RDS Project were to: (1) ensure traceability and defensibility of all physical and hydraulic property data currently residing in the SoilVision{reg_sign} database maintained by PNNL, (2) transfer the physical and hydraulic property data from the Microsoft Access database files used by SoilVision{reg_sign} into HEIS, which has most recently been maintained by Fluor-Hanford, Inc., (3) develop a Virtual Library module for accessing these data from HEIS, and (4) write a User's Manual for the Virtual Library module. The development of the Virtual Library module was to be performed by a third party under subcontract to Fluor. The intent of these activities is to make the available physical and hydraulic property data more readily accessible and useable by technical staff and operable unit managers involved in waste site assessments

  20. Cooperation project: medical physics in cancer diagnosis and therapy in Bangladesh

    International Nuclear Information System (INIS)

    Bangladesh requires 200 radiotherapy facilities, 4 are in use; 400 medical physicists are needed, 3 are employed. On a private basis, a DGMP working group started in 1996, annual workshops on medical physics in cancer diagnosis and treatment, joined by many working physicists interested to become medical physicists. Basic topics were the principles, applications, acceptance, dosimetry and planning of 60Co radiotherapy. In 1998, the Bangladesh association of physicists in medicine (BMPA) was founded, a young scientific society requiring international co-operation. The long experience in Medical Physics in India, its neighbouring country, could be very helpful in providing excellent medical physics courses. To absorb new technology and science, it is necessary to change the education policy; creativity and innovativeness must be valued more than the old knowledge, being replaced quickly by new knowledge and new technologies. (author)

  1. An analogue conceptual rainfall-runoff model for educational purposes

    Science.gov (United States)

    Herrnegger, Mathew; Riedl, Michael; Schulz, Karsten

    2016-04-01

    Conceptual rainfall-runoff models, in which runoff processes are modelled with a series of connected linear and non-linear reservoirs, remain widely applied tools in science and practice. Additionally, the concept is appreciated in teaching due to its somewhat simplicity in explaining and exploring hydrological processes of catchments. However, when a series of reservoirs are used, the model system becomes highly parametrized and complex and the traceability of the model results becomes more difficult to explain to an audience not accustomed to numerical modelling. Since normally the simulations are performed with a not visible digital code, the results are also not easily comprehensible. This contribution therefore presents a liquid analogue model, in which a conceptual rainfall-runoff model is reproduced by a physical model. This consists of different acrylic glass containers representing different storage components within a catchment, e.g. soil water or groundwater storage. The containers are equipped and connected with pipes, in which water movement represents different flow processes, e.g. surface runoff, percolation or base flow. Water from a storage container is pumped to the upper part of the model and represents effective rainfall input. The water then flows by gravity through the different pipes and storages. Valves are used for controlling the flows within the analogue model, comparable to the parameterization procedure in numerical models. Additionally, an inexpensive microcontroller-based board and sensors are used to measure storage water levels, with online visualization of the states as time series data, building a bridge between the analogue and digital world. The ability to physically witness the different flows and water levels in the storages makes the analogue model attractive to the audience. Hands-on experiments can be performed with students, in which different scenarios or catchment types can be simulated, not only with the analogue but

  2. Innovation in Scholarly Communication Vision and Projects from High-Energy Physics

    CERN Document Server

    Heuer, Rolf-Dieter; Mele, Salvatore

    2008-01-01

    Having always been at the forefront of information management and open access, High-Energy Physics (HEP) proves to be an ideal test-bed for innovations in scholarly communication including new information and communication technologies. Three selected topics of scholarly communication in High-Energy Physics are presented here: A new open access business model, SCOAP3, a world-wide sponsoring consortium for peer-reviewed HEP literature; the design, development and deployment of an e-infrastructure for information management; and the emerging debate on long-term preservation, re-use and (open) access to HEP data.

  3. Innovation in scholarly communications. Vision and projects from High-Energy Physics

    Energy Technology Data Exchange (ETDEWEB)

    Heuer, R.D.; Holtkamp, A. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Mele, S. [European Organization for Nuclear Research (CERN), Geneva (Switzerland)

    2008-05-15

    Having always been at the forefront of information management and open access, High-Energy Physics (HEP) proves to be an ideal test-bed for innovations in scholarly communication including new information and communication technologies. Three selected topics of scholarly communication in High-Energy Physics are presented here: A new open access business model, SCOAP, a world-wide sponsoring consortium for peer-reviewed HEP literature; the design, development and deployment of an e-infrastructure for information management; and the emerging debate on long-term preservation, re-use and (open) access to HEP data. (orig.)

  4. Innovation in scholarly communication: Vision and projects from high-energy physics

    International Nuclear Information System (INIS)

    Having always been at the forefront of information management and open access, High-Energy Physics (HEP) proves to be an ideal test-bed for innovations in scholarly communication including new information and communication technologies. Three selected topics of scholarly communication in High-Energy Physics are presented here: A new open access business model, SCOAP, a world-wide sponsoring consortium for peer-reviewed HEP literature; the design, development and deployment of an e-infrastructure for information management; and the emerging debate on long-term preservation, re-use and (open) access to HEP data. (orig.)

  5. The theory of Hawking radiation in laboratory analogues

    CERN Document Server

    Robertson, Scott

    2015-01-01

    Hawking radiation, despite being known to theoretical physics for nearly forty years, remains elusive and undetected. It also suffers, in its original context of gravitational black holes, from practical and conceptual difficulties. Of particular note is the trans-Planckian problem, which is concerned with the apparent origin of the radiation in absurdly high frequencies. In order to gain better theoretical understanding and, it is hoped, experimental verification of Hawking radiation, much study is being devoted to laboratory systems which use moving media to model the spacetime geometry of black holes, and which, by analogy, are also thought to emit Hawking radiation. These analogue systems typically exhibit dispersion, which regularizes the wave behaviour at the horizon at the cost of a more complicated theoretical framework. This tutorial serves as an introduction to Hawking radiation and its analogues, developing the moving medium analogy for black holes and demonstrating how dispersion can be incorporat...

  6. Modelling a river catchment using an electrical circuit analogue

    Directory of Open Access Journals (Sweden)

    C. G. Collier

    1998-01-01

    Full Text Available An electrical circuit analogue of a river catchment is described from which is derived an hydrological model of river flow called the River Electrical Water Analogue Research and Development (REWARD model. The model is based upon an analytic solution to the equation governing the flow of electricity in an inductance-capacitance-resistance (LCR circuit. An interpretation of L, C and R in terms of catchment parameters and physical processes is proposed, and tested for the River Irwell catchment in northwest England. Hydrograph characteristics evaluated using the model are compared with observed hydrographs, confirming that the modelling approach does provide a reliable framework within which to investigate the impact of variations in model input data.

  7. MO-E-18C-02: Hands-On Monte Carlo Project Assignment as a Method to Teach Radiation Physics

    International Nuclear Information System (INIS)

    Purpose: To present a hands-on project on Monte Carlo methods (MC) recently added to the curriculum and to discuss the students' appreciation. Methods: Since 2012, a 1.5 hour lecture dedicated to MC fundamentals follows the detailed presentation of photon and electron interactions. Students also program all sampling steps (interaction length and type, scattering angle, energy deposit) of a MC photon transport code. A handout structured in a step-by-step fashion guides student in conducting consistency checks. For extra points, students can code a fully working MC simulation, that simulates a dose distribution for 50 keV photons. A kerma approximation to dose deposition is assumed. A survey was conducted to which 10 out of the 14 attending students responded. It compared MC knowledge prior to and after the project, questioned the usefulness of radiation physics teaching through MC and surveyed possible project improvements. Results: According to the survey, 76% of students had no or a basic knowledge of MC methods before the class and 65% estimate to have a good to very good understanding of MC methods after attending the class. 80% of students feel that the MC project helped them significantly to understand simulations of dose distributions. On average, students dedicated 12.5 hours to the project and appreciated the balance between hand-holding and questions/implications. Conclusion: A lecture on MC methods with a hands-on MC programming project requiring about 14 hours was added to the graduate study curriculum since 2012. MC methods produce “gold standard” dose distributions and slowly enter routine clinical work and a fundamental understanding of MC methods should be a requirement for future students. Overall, the lecture and project helped students relate crosssections to dose depositions and presented numerical sampling methods behind the simulation of these dose distributions. Research funding from governments of Canada and Quebec. PP acknowledges

  8. MO-E-18C-02: Hands-On Monte Carlo Project Assignment as a Method to Teach Radiation Physics

    Energy Technology Data Exchange (ETDEWEB)

    Pater, P; Vallieres, M; Seuntjens, J [McGill University, Montreal, Quebec (Canada)

    2014-06-15

    Purpose: To present a hands-on project on Monte Carlo methods (MC) recently added to the curriculum and to discuss the students' appreciation. Methods: Since 2012, a 1.5 hour lecture dedicated to MC fundamentals follows the detailed presentation of photon and electron interactions. Students also program all sampling steps (interaction length and type, scattering angle, energy deposit) of a MC photon transport code. A handout structured in a step-by-step fashion guides student in conducting consistency checks. For extra points, students can code a fully working MC simulation, that simulates a dose distribution for 50 keV photons. A kerma approximation to dose deposition is assumed. A survey was conducted to which 10 out of the 14 attending students responded. It compared MC knowledge prior to and after the project, questioned the usefulness of radiation physics teaching through MC and surveyed possible project improvements. Results: According to the survey, 76% of students had no or a basic knowledge of MC methods before the class and 65% estimate to have a good to very good understanding of MC methods after attending the class. 80% of students feel that the MC project helped them significantly to understand simulations of dose distributions. On average, students dedicated 12.5 hours to the project and appreciated the balance between hand-holding and questions/implications. Conclusion: A lecture on MC methods with a hands-on MC programming project requiring about 14 hours was added to the graduate study curriculum since 2012. MC methods produce “gold standard” dose distributions and slowly enter routine clinical work and a fundamental understanding of MC methods should be a requirement for future students. Overall, the lecture and project helped students relate crosssections to dose depositions and presented numerical sampling methods behind the simulation of these dose distributions. Research funding from governments of Canada and Quebec. PP acknowledges

  9. A project for reorganizing the elementary and high school trajectory: a pedagogical proposal for Physical Education

    OpenAIRE

    Lino Castellani Filho

    2008-01-01

    The aim of this paper is first to define body culture, a constituent of Brazilian culture, as a totality formed by the interaction of such different social practices as dancing, games, gymnastics and sports, discuss its insertion in Physical Education and reflect on the teaching methodologies and forms of evaluation. Finally, there follows and analytical comment made on the bibliographical references.

  10. Association of Physical Fitness With Pain in Women With Fibromyalgia : The al-Ándalus Project

    NARCIS (Netherlands)

    Soriano-Maldonado, Alberto; Ruiz, Jonatan R; Aparicio, Virginia A; Estévez-López, Fernando; Segura-Jiménez, Víctor; Álvarez-Gallardo, Inmaculada C; Carbonell-Baeza, Ana; Delgado-Fernández, Manuel; Ortega, Francisco B

    2015-01-01

    OBJECTIVE: This population-based cross-sectional study aimed to characterize the association of different components of physical fitness with pain levels, pain-related catastrophizing, and chronic pain self-efficacy in women with fibromyalgia (FM). METHODS: A total of 468 women with FM participated.

  11. Effects of Goal Setting on Dietary and Physical Activity Changes in the Boy Scout Badge Projects

    Science.gov (United States)

    Latif, Hira; Watson, Kathy; Nguyen, Nga; Thompson, Debbe; Baranowski, Janice; Jago, Russell; Cullen, Karen W.; Baranowski, Tom

    2011-01-01

    Background: This study evaluates the relationship of goal setting to low-fat vegetable (LV) and fruit/100% juice (FJ) consumption and physical activity (PA) change. Methods: A total of 473 10- to 14-year-old Boy Scouts from Houston took part in a 9-week intervention. A two-group (LV and FJ or PA) intervention design was used with each group…

  12. Metacognition in Physics/Chemistry Teacher Education--A Danish Project.

    Science.gov (United States)

    Henriksen, Leif; And Others

    1996-01-01

    A preservice physics/chemistry course was created that was inspired by constructivist thinking, that emphasized metacognition, and that integrated concepts of pedagogical and scientific topics by developing a teaching/learning cycle. Denmark's educational system and the implementation of the course are described. Preliminary evaluations suggest…

  13. Physical Education between the social project of solid modernity and the of liquid modernity

    Directory of Open Access Journals (Sweden)

    Sidinei Pithan da Silva

    2012-09-01

    Full Text Available Grounded on Bauman’s thought, the present paper focuses on the constitution of social legitimacy and identity of Physical Education in the context of transition from solid to liquid modernity. This thought favors the understanding of the nature of the crisis that has crossed the identity discourse of Physical Education. The text signals the limits and possibilities of both the modern and the post-modern educational discourses. In this context, it describes a modern scenario that is marked by two distinct moments, the one of modernity at its solid stage, and that of modernity at its liquid stage. The first one, of solid modernity, social condition of surveillance, rationalization and control, performs the functional / adaptive role of putting everyone under the same rigid order (managed society. The second one, of liquid modernity, of the social condition of insignificance and irrationalism, plays the functional role of putting and keeping everyone under the same flexible Market disorder. From the scientific, mechanic focus of both the body and the physical education in solid modernity we have moved to the relativist and esthetic focus of body and physical education in liquid modernity.

  14. Heat Mining or Replenishable Geothermal Energy? A Project for Advanced-Level Physics Students

    Science.gov (United States)

    Dugdale, Pam

    2014-01-01

    There is growing interest in the use of low enthalpy geothermal (LEG) energy schemes, whereby heated water is extracted from sandstone aquifers for civic heating projects. While prevalent in countries with volcanic activity, a recently proposed scheme for Manchester offered the perfect opportunity to engage students in the viability of this form…

  15. The chaos machine: analogue computing rediscovered (1)

    OpenAIRE

    Ambaum, Maarten H. P.; Harrison, R. Giles

    2011-01-01

    Analogue computers provide actual rather than virtual representations of model systems. They are powerful and engaging computing machines that are cheap and simple to build. This two-part Retronics article helps you build (and understand!) your own analogue computer to simulate the Lorenz butterfly that's become iconic for Chaos theory.

  16. The Milky Way Project and ATLASGAL: The distribution and physical properties of cold clumps near infrared bubbles

    CERN Document Server

    Kendrew, S; Simpson, R; Csengeri, T; Wienen, M; Lintott, C J; Povich, M S; Beaumont, C; Schuller, F

    2016-01-01

    We present a statistical study of the distribution and physical properties of cold dense material in and around the inner Galactic Plane near infrared bubbles as catalogued by the Milky Way Project citizen scientists. Using data from the ATLASGAL 870 um survey, we show that 48 +/- 2% of all cold clumps in the studied survey region (|l| <= 65 degrees, |b| <= 1 degree) are found in close proximity to a bubble, and 25 +/- 2% appear directly projected towards a bubble rim. A two-point correlation analysis confirms the strong correlation of massive cold clumps with expanding bubbles. It shows an overdensity of clumps along bubble rims that grows with increasing bubble size, which shows how interstellar medium material is reordered on large scales by bubble expansion around regions of massive star formation. The highest column density clumps appear resistent to the expansion, remaining overdense towards the bubbles' interior rather than being swept up by the expanding edge. Spectroscopic observations in ammon...

  17. The FP420 R&D Project: Higgs and New Physics with forward protons at the LHC

    CERN Document Server

    Albrow, M G; Arneodo, Michele; Atoian, G; Barlow, R; Beaumont, W; Bonnet, L; Brandt, A; Bussey, P; Buttar, C; Butterworth, J M; Carter, M; Cox, B E; Dattola, D; Da Via, C; de Favereau, J; D'Enterria, David; De Remigis, P; De Roeck, Albert; De Wolf, Eddi A; Duarte, P; Ellis, John R.; Florins, B; Forshaw, J R; Freestone, J; Goulianos, Konstantin A; Gronberg, J; Grothe, M; Gunion, J F; Hasi, J; Heinemeyer, S; Hollar, Jonathan J; Houston, S; Issakov, V; Jones, Roger M; Kelly, M; Kenney, C; Khoze, V A; Kolya, S; Konstantinidis, N; Kowalski, H; Lanni, F; Larsen, H E; Liu, S L; Lyapine, A; Loebinger, Frederick K; Marshall, R; Martin, A D; Monk, James William; Nasteva, Irina; Nemegeer, P; Obertino, M M; Orava, R; O'Shea, V; Pal, A; Parker, S; Pater, J; Perrot, A L; Pierzchala, T; Pilkington, A D; Pinfold, James L; Piotrzkowski, Krzysztof; Plano, W; Poblaguev, A; Popov, V; Potter, K M; Radeka, V; Rescia, S; Roncarolo, F; Rostovtsev, A; Rouby, X; Ruspa, M; Ryskin, M G; Santoro, A; Schul, N; Sellers, G; Solano, A; Spivey, S; Stirling, W J; Swoboda, D; Tasevsky, M; Thompson, R; Tsang, T; Van Mechelen, P; Vilela Pereira, A; Watts, S J; Warren, M R M; Weiglein, G; Wengler, T; White, Sebastian N; Winter, B; Yao, Y; Zaborov, D; Zampieri, A; Zeller, M; Zhokin, A

    2009-01-01

    We present the FP420 R&D project, which has been studying the key aspects of the development and installation of a silicon tracker and fast-timing detectors in the LHC tunnel at 420 m from the interaction points of the ATLAS and CMS experiments. These detectors would measure precisely very forward protons in conjunction with the corresponding central detectors as a means to study Standard Model (SM) physics, and to search for and characterise New Physics signals. This report includes a detailed description of the physics case for the detector and, in particular, for the measurement of Central Exclusive Production, pp --> p + phi + p, in which the outgoing protons remain intact and the central system phi may be a single particle such as a SM or MSSM Higgs boson. Other physics topics discussed are gamma-gamma and gamma-p interactions, and diffractive processes. The report includes a detailed study of the trigger strategy, acceptance, reconstruction efficiencies, and expected yields for a particular p p --> ...

  18. The Tokamak Fusion Test Reactor decontamination and decommissioning project and the Tokamak Physics Experiment at the Princeton Plasma Physics Laboratory. Environmental Assessment

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-05-27

    If the US is to meet the energy needs of the future, it is essential that new technologies emerge to compensate for dwindling supplies of fossil fuels and the eventual depletion of fissionable uranium used in present-day nuclear reactors. Fusion energy has the potential to become a major source of energy for the future. Power from fusion energy would provide a substantially reduced environmental impact as compared with other forms of energy generation. Since fusion utilizes no fossil fuels, there would be no release of chemical combustion products to the atmosphere. Additionally, there are no fission products formed to present handling and disposal problems, and runaway fuel reactions are impossible due to the small amounts of deuterium and tritium present. The purpose of the TPX Project is to support the development of the physics and technology to extend tokamak operation into the continuously operating (steady-state) regime, and to demonstrate advances in fundamental tokamak performance. The purpose of TFTR D&D is to ensure compliance with DOE Order 5820.2A ``Radioactive Waste Management`` and to remove environmental and health hazards posed by the TFTR in a non-operational mode. There are two proposed actions evaluated in this environmental assessment (EA). The actions are related because one must take place before the other can proceed. The proposed actions assessed in this EA are: the decontamination and decommissioning (D&D) of the Tokamak Fusion Test Reactor (TFTR); to be followed by the construction and operation of the Tokamak Physics Experiment (TPX). Both of these proposed actions would take place primarily within the TFTR Test Cell Complex at the Princeton Plasma Physics Laboratory (PPPL). The TFTR is located on ``D-site`` at the James Forrestal Campus of Princeton University in Plainsboro Township, Middlesex County, New Jersey, and is operated by PPPL under contract with the United States Department of Energy (DOE).

  19. Radio Frequency Interference: Projects and Activities Developed for the High School Earth Science, Astronomy, and Physics Classroom

    Science.gov (United States)

    Dunn, S. K.; Brown, J.

    2003-12-01

    Radio Frequency Interference: Projects and Activities Developed for the High School Earth Science, Astronomy, and Physics Classroom Susan Dunn Tewksbury Memorial High School Jason Brown Tyngsboro High School Preethi Pratap MIT Haystack Observatory The Research Experiences for Teachers (RET) program, funded by the NSF, brings teachers into research environments to interact with scientists and translate the experience into the classroom. We will describe a RET experience at the MIT Haystack Observatory which involved using an AR3000A communications receiver and a discone antenna as the basis for an Earth Science, Astronomy, and Physics classroom unit. The projects and activities in this unit were developed to help foster student learning and understanding of radio astronomy, the electromagnetic spectrum, wave dynamics, signal propagation, meteor detection, and radio frequency interference. Additionally, this RET project utilizes the SEARFE (Students Examining Australia???s Radio Frequency Environment) software developed for use with the AR3000A communications receiver to scan and monitor frequencies across the radio bandwidth to determine areas of low and high usage in the radio spectrum. Classroom activities include Scanning Protected Radio Astronomy Bandwidths, Investigating the Radio Environment, Time Variation of Signal Strength, Signal Strength vs. Location Studies, Detecting Meteors using the AR300A Receiver, Mapping the RFI Environment of Your School, AM Radio Interference, and Signal Propagation Effects. The primary focus of the unit???s activities is to address the Massachusetts State Science Frameworks for electromagnetic radiation, waves, cosmology, and matter and energy in the Earth system and foster an understanding of how everyday communications devices may cause radio frequency interference with sensitive radio astronomy equipment. The projects and activities in the unit will be used in the classroom, amended, and the results of the classroom

  20. Strategy and methodology of dynamical analogue prediction

    Institute of Scientific and Technical Information of China (English)

    REN; HongLi; CHOU; JiFan

    2007-01-01

    In order to effectively improve numerical prediction level by using current models and data, the strategy and methodology of dynamical analogue prediction (DAP) is deeply studied in the present paper. A new idea to predict the prediction errors of dynamical model on the basis of historical analogue information is put forward so as to transform the dynamical prediction problem into the estimation problem of prediction errors. In terms of such an idea, a new prediction method of final analogue correction of errors (FACE) is developed. Furthermore, the FACE is applied to extra-seasonal prediction experiments on an operational atmosphere-ocean coupled general circulation model. Prediction results of summer mean circulation and total precipitation show that the FACE can to some extent reduce prediction errors, recover prediction variances, and improve prediction skills. Besides, sensitive experiments also show that predictions based on the FACE are evidently influenced by the number of analogues, analogue-selected variables and analogy metric.

  1. Characterization of the Pseudocapacitive Nature of Surface Bound Prussian Blue Analogues

    Science.gov (United States)

    Clark, Daniel; Hampton, Jennifer

    With the increased use of intermittent renewable energy sources, more efficient methods of energy storage must be explored. Electrochemical capacitors provide a larger volumetric charge density than physical capacitors while maintaining fast charge and discharge rates. Prussian Blue analogues (nickel and cobalt hexacyanoferrate) are ideal pseudocapacitors for frequent charge and discharge cycles since the crystalline structure does not physically change during switching, causing less stress on the film. This project examines the charge transfer and diffusion coefficients for nickel and nickel-cobalt thin films modified with potassium hexacyanoferrate. The films were examined using a scanning electron microscope, an atomic force microscope and an electrochemical workstation to determine their composition, topography and psuedocapacitive nature. Preliminary data suggest that nickel-cobalt films have a larger quantity of charge and have a lower diffusion coefficient per charge than nickel films. This work is supported by the Hope College Nyenhuis Faculty Development Fund, the Hope College Department of Physics Guess Research Fund, and the National Science Foundation under Grants RUI-DMR-1104725, MRI-CHE-0959282, and MRI-CHE-1126462.

  2. Physics with a High Intensity Proton Source at Fermilab: Project X Golden Book

    International Nuclear Information System (INIS)

    Within the next ten years the Standard Model will likely have to be modified to encompass a wide range of newly discovered phenomena, new elementary particles, new symmetries, and new dynamics. These phenomena will be revealed through experiment with high energy particle accelerators, mainly the LHC. This will represent a revolution in our understanding of nature, and will either bring us closer to an understanding of all phenomena, through existing ideas such as supersymmetry to superstrings, or will cause us to scramble to find new ideas and a new sense of direction. We are thus entering a dramatic and important time in the quest to understand the fundamental laws of nature and their role in shaping the universe. The energy scales now probed by the Tevatron, of order hundreds of GeV, will soon be subsumed by the LHC and extended up to a few TeV. We expect the unknown structure of the mysterious symmetry breaking of the Standard Model to be revealed. We will then learn the answer to a question that has a fundamental bearing upon our own existence: 'What is the origin of mass?' All modern theories of 'electroweak symmetry breaking' involve many new particles, mainly to provide a 'naturalness' rationale for the weak scale. Supersymmetry (SUSY) represents extra (fermionic) dimensions of space, leading to a doubling of the number of known elementary particles and ushering in many additional new particles and phenomena associated with the various symmetry breaking sectors. The possibility of additional bosonic dimensions of space would likewise usher in an even greater multitude of new states and new phenomena. Alternatively, any new spectroscopy may indicate new principles we have not yet anticipated, and we may see new strong forces and/or a dynamical origin of mass. The wealth of new particles, parameters, CP-phases, and other phenomena carries important implications for precision quark flavor physics experiments that are uniquely sensitive probes of new phenomena

  3. Physics with a High Intensity Proton Source at Fermilab: Project X Golden Book

    Energy Technology Data Exchange (ETDEWEB)

    Appel, Jeffrey; /Fermilab; Asner, David; /Carleton U.; Bigi, Ikaros; /Notre Dame U.; Bryman, Douglas; /British Columbia U.; Buras, Andrzej; /Munich, Tech. U.; Carena, Marcela /Fermilab; Carosi, Roberto; /INFN, Pisa; Christian, Dave; /Fermilab; Conrad, Janet; /Columbia U.; Diwan, Milind; /Brookhaven; Dukes, Craig; /Virginia U. /Fermilab

    2008-02-03

    Within the next ten years the Standard Model will likely have to be modified to encompass a wide range of newly discovered phenomena, new elementary particles, new symmetries, and new dynamics. These phenomena will be revealed through experiment with high energy particle accelerators, mainly the LHC. This will represent a revolution in our understanding of nature, and will either bring us closer to an understanding of all phenomena, through existing ideas such as supersymmetry to superstrings, or will cause us to scramble to find new ideas and a new sense of direction. We are thus entering a dramatic and important time in the quest to understand the fundamental laws of nature and their role in shaping the universe. The energy scales now probed by the Tevatron, of order hundreds of GeV, will soon be subsumed by the LHC and extended up to a few TeV. We expect the unknown structure of the mysterious symmetry breaking of the Standard Model to be revealed. We will then learn the answer to a question that has a fundamental bearing upon our own existence: 'What is the origin of mass?' All modern theories of 'electroweak symmetry breaking' involve many new particles, mainly to provide a 'naturalness' rationale for the weak scale. Supersymmetry (SUSY) represents extra (fermionic) dimensions of space, leading to a doubling of the number of known elementary particles and ushering in many additional new particles and phenomena associated with the various symmetry breaking sectors. The possibility of additional bosonic dimensions of space would likewise usher in an even greater multitude of new states and new phenomena. Alternatively, any new spectroscopy may indicate new principles we have not yet anticipated, and we may see new strong forces and/or a dynamical origin of mass. The wealth of new particles, parameters, CP-phases, and other phenomena carries important implications for precision quark flavor physics experiments that are uniquely

  4. Status and perspectives of atomic physics research at GSI: The new GSI accelerator project

    Energy Technology Data Exchange (ETDEWEB)

    Stoehlker, Th. E-mail: t.stoehlker@gsi.de; Backe, H.; Beyer, H.F.; Bosch, F.; Braeuning-Demian, A.; Hagmann, S.; Ionescu, D.C.; Jungmann, K.; Kluge, H.-J.; Kozhuharov, C.; Kuehl, Th.; Liesen, D.; Mann, R.; Mokler, P.H.; Quint, W

    2003-05-01

    A short overview on the results of atomic physics research at the storage ring ESR is given followed by a presentation of the envisioned atomic physics program at the planned new GSI facility. The proposed new GSI facility will provide highest intensities of relativistic beams of both stable and unstable heavy nuclei - up to a Lorentz factor of 24. At those relativistic velocities, the energies of optical transitions, such as for lasers, are boosted into the X-ray region and the high-charge state ions generate electric and magnetic fields of exceptional strength. Together with high beam intensities a range of important experiments can be anticipated, for example electronic transitions in relativistic heavy-ion collisions such as dynamically induced e{sup +}e{sup -} pairs, test of quantum electrodynamics (QED) in strong fields, and ions and electrons in ultra-high intensity femtosecond laser fields.

  5. EFOMP project on the role of biomedical physics in the education of healthcare professionals

    Science.gov (United States)

    Caruana, Carmel J.; Wasilewska-Radwanska, M.; Aurengo, A.; Dendy, P. P.; Karenauskaite, V.; Malisan, M. R.; Meijer, J. H.; Mornstein, V.; Rokita, E.; Vano, E.; Wucherer, M.

    2009-01-01

    The policy statements describing the role of the medical physicist (and engineer) published by organizations representing medical physics (and engineering) in Europe include the responsibility of providing a contribution to the education of healthcare professionals (physicians and paramedical professions). As a consequence, medical physicists and engineers provide educational services in most Faculties of Medicine / Health Science in Europe. In 2005, the EFOMP council took the decision to set up a Special Interest Group to develop the role of the medical physics educator in such faculties and to work with other healthcare professional groups to produce updated European curricula for them. The effort of the group would provide a base for the progress of the role, its relevance to contemporary healthcare professional education and provide input for future EFOMP policy documents regarding this important aspect of the role of the medical physicist. The present communication will present the group, summarise its latest research and indicate future research directions.

  6. New Progress Achieved by NSFC Project in Basic Research of Black Hole Physics

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Supported by NSFC,Prof.Wu Shuangqing from Huazhong Normal University conducted independent research on gravitation theory,discovered the exact solutions for the five-dimensional G(o)del charged rota-ting black hole in the universe,and made important headway in the characteristic research of black hole so-lutions.Part of the research results has been published in international top journal Physical Review Letters 100,121301 (2008).

  7. Review of some projects connected with of fundamental laws of physics

    OpenAIRE

    Stanislav I. Konstantinov

    2015-01-01

    Recognising the space environment (neo-ether) as a new corporeal entity provides the humankind with an inexhaustible source for conceptual innovations in many domains. Instantaneous transmission of the information and energy to anywhere in The Solar System, gravity control, generating unlimited amounts of electrical energy at subatomic level, fundamentally new electric motors, the power reactors on the basis of cold nuclear fusion (CNF). Formal science had not recognised new physical phenomen...

  8. Physics at the high-energy frontier - the Large Hadron Collider project

    CERN Document Server

    Brown, Robert; Evans, David; Gibson, Valerie; Nickerson, Richard

    2012-01-01

    The Large Hadron Collider (LHC), achieved its first particle collisions in late 2009 and is now running at 7 TeV, the highest energy ever attained in the laboratory, thereby opening the way for the search for many new phenomena. The aim of the meeting is to discuss the scientific, technical, sociological, political and financial challenges of bringing this huge international project to fruition.

  9. FROM THE HISTORY OF PHYSICS: L D Landau in the Soviet Atomic Project: a documentary study

    Science.gov (United States)

    Kiselev, G. V.

    2008-09-01

    The article presents information about the participation of Academician L D Landau in the Soviet Atomic Project and is based on a study of archive documents of the First Main Directorate. Their analysis points to L D Landau's important contribution to the development of the theory of heterogeneous nuclear reactors and to the computational justification of the first designs of atomic and hydrogen bombs. Many of the quoted documents have never been published before.

  10. Distributed Physical and Molecular Separations for Selective Harvest of Higher Value Wheat Straw Components Project

    Energy Technology Data Exchange (ETDEWEB)

    N/A

    2004-09-30

    Wheat straw (Triticum aestivum L.) is an abundant source of plant fiber. It is regenerated, in large quantities, every year. At present, this potentially valuable resource is greatly under-exploited. Most of the excess straw biomass (i.e., tonnage above that required for agronomic cropping system sustainability) is managed through expensive chopping/tillage operations and/or burnt in the field following harvest, resulting in air pollution and associated health problems. Potential applications for wheat straw investigated within this project include energy and composites manufacture. Other methods of straw utilization that will potentially benefit from the findings of this research project include housing and building, pulp and paper, thermal insulation, fuels, and chemicals. This project focused on components of the feedstock assembly system for supplying a higher value small grains straw residue for (1) gasification/combustion and (2) straw-thermoplastic composites. This project was an integrated effort to solve the technological, infrastructural, and economic challenges associated with using straw residue for these bioenergy and bioproducts applications. The objective of the research is to contribute to the development of a low-capital distributed harvesting and engineered storage system for upgrading wheat straw to more desirable feedstocks for combustion and for straw-plastic composites. They investigated two processes for upgrading wheat straw to a more desirable feedstock: (1) an efficient combine-based threshing system for separating the intermodal stems from the leaves, sheaths, nodes, and chaff. (2) An inexpensive biological process using white-rot fungi to improve the composition of the mechanically processed straw stems.

  11. Distributed Physical and Molecular Separations for Selective Harvest of Higher Value Wheat Straw Components Project

    Energy Technology Data Exchange (ETDEWEB)

    Hess, J.R

    2005-01-31

    Wheat straw (Triticum aestivum L.) is an abundant source of plant fiber. It is regenerated, in large quantities, every year. At present, this potentially valuable resource is greatly under-exploited. Most of the excess straw biomass (i.e., tonnage above that required for agronomic cropping system sustainability) is managed through expensive chopping/tillage operations and/or burnt in the field following harvest, resulting in air pollution and associated health problems. Potential applications for wheat straw investigated within this project include energy and composites manufacture. Other methods of straw utilization that will potentially benefit from the findings of this research project include housing and building, pulp and paper, thermal insulation, fuels, and chemicals. This project focused on components of the feedstock assembly system for supplying a higher value small grains straw residue for (1) gasification/combustion and (2) straw-thermoplastic composites. This project was an integrated effort to solve the technological, infrastructural, and economic challenges associated with using straw residue for these bioenergy and bioproducts applications. The objective of the research is to contribute to the development of a low-capital distributed harvesting and engineered storage system for upgrading wheat straw to more desirable feedstocks for combustion and for straw-plastic composites. We investigated two processes for upgrading wheat straw to a more desirable feedstock: (1) An efficient combine-based threshing system for separating the internodal stems from the leaves, sheaths, nodes, and chaff. (2) An inexpensive biological process using white-rot fungi to improve the composition of the mechanically processed straw stems.

  12. Physical Capital Accumulation in Asia-12: Past Trends and Future Projections

    OpenAIRE

    "Shioji, Etsuro"; Vu Tuan Khai

    2011-01-01

    The pace of capital accumulation in East Asia has simply been stunning. In this paper, we investigate sources of this fast accumulation and make projections for the future to see if the trend is likely to continue. East Asian economies under consideration are the People's Republic of China; Hong Kong, China; Indonesia; the Republic of Korea; Malaysia, the Philippines; Singapore; Taipei,China; Thailand; and Viet Nam, including India and Pakistan from South Asia. We estimate a "convergence" equ...

  13. The LUCIFER project and production issues for crystals needed in rare events physics experiments

    Science.gov (United States)

    Dafinei, I.

    2014-05-01

    The detection of elusive particles and in general the construction of detectors with high sensitivity for applications in the physics of rare events requires the use of new high quality crystals with enhanced characteristics. The production of such materials often depends upon the application of dedicated methods for the entire production process from synthesis of raw materials up to the storage and transport of the finished product ready for use for the construction of the particle detector. Cryogenic bolometers and the more sophisticated scintillating bolometers are among the most promising detectors used in rare event physics, particularly in Neutrinoless Double Beta Decay (0νDBD) experiments. Operated at extremely low temperatures (≈10 mK) such devices need high purity crystals with a very high crystal perfection and low level of intrinsic radioactivity. Moreover, in the case of 0νDBD application, the crystal requires the presence of the nuclide of interest in a sufficient amount i.e. isotope enriched materials are employed. The current work reviews scientific and technological aspects related to the crystal production for rare events physics experiments, particularly for bolometric application. In the case of enriched isotopes used in 0νDBD experiments, the problems related to a maximum production yield are stressed. The discussion is illustrated with results obtained in the activities connected to the procurement of ZnSe crystals for the experiment Low-background Underground Cryogenic Installation For Elusive Rates (LUCIFER).

  14. The success of the 11-Tesla project and its potential beyond particle physics

    CERN Multimedia

    CERN Bulletin

    2013-01-01

    On 7 March, the 1-metre-long single-aperture dipole model magnet under testing at Fermilab reached a current of 12.54 kA corresponding to a bore field of 11.5 Tesla, thus surpassing the goal set for the 11 T dipole project.   Computer generated model of the FNAL 1 metre 11 T dipole model magnet and a pair of CERN coils. Image: courtesy of Don Mitchell, FNAL. The 11-Tesla dipole project originated from a proposal made by High Luminosity LHC project coordinator, Lucio Rossi, in September 2010. To cope with the increasing amount of debris hitting the magnets when increasing the number of collisions produced by the LHC, he suggested replacing a few 8-Tesla dipole magnets in the LHC tunnel with shorter, stronger 11-Tesla magnets in order to create enough space to install additional collimators. The only way to achieve this goal is to use advanced niobium-tin technology. Rossi’s proposal aligned well with the goals of Fermilab’s High-Field Magnet R&D programme, which aims t...

  15. Magnetic Resonance Project 35-26-7: A Cuban Case of Engineering Physics and Biophysics

    Science.gov (United States)

    Cabal Mirabal, Carlos A.

    The Magnetic Resonance Project 35-26-7 started in December 1987, commissioned by the [then] Cuban Prime Minister, Fidel Castro, who—concerned about introducing technological advancement into the Cuban health [system]—had for some months taken an interest in the possibility of building magnetic resonance imaging (MRI) equipment for medical diagnosis in Cuba (Zito M, Argüelles MM et al, Y sin embargo-: ciencia: hablan 30 investigadores cubanos. Editoria April, Habana, pp 56-66, 1999; Cabal, Biofísica Médica. In: Fidel Castro Dìas-Balart (eds) Cuba. Amanecer del Tercer Milenio. Ciencia, Sociedad y Tecnología: Biofísica Médica. Debate Editorial, Madrid, pp 31-48, 2002). Many of the companies producing MRI equipment were unable to deliver this technology to Cuba due to the bloqueo, the United States embargo against Cuba. Those who were later to advance the project's progress in scientific technology initially regarded the implementation of such a project in a developing country as unfeasible due to its complexity. But Fidel's belief and confidence and in turn the Cuban scientists' commitment to him and to Cuban science proved to be an undeniable factors for its success.

  16. Colorado School of Mines low energy nuclear physics project. Final technical progress report

    Energy Technology Data Exchange (ETDEWEB)

    Cecil, F.E.

    1993-11-23

    This report summarizes the accomplishments of the project ``Studies of nuclear reactions at very low energies``. This project was undertaken in 1987 and completed in 1993. All but one of the major objectives of this study have been accomplished. Specifically the authors have completed their investigation of the (p,{gamma}) on light nuclei, a study of the Oppenheimer-Phillips effect, a measurements of the astrophysically interesting reaction D({alpha},{gamma}){sup 6}Li at low energies and an extension of the reaction D(d,{gamma}){sup 4}He to lower energies than previously observed. Preliminary investigation of te reaction {sup 7}Li({sup 3}He,p){sup 9}Be was begun and is continuing under a separate DOE grant. In addition to these tasks, they have completed some very interesting projects which were not included in the original proposal. These include a study of the (d,{gamma}) reactions on {sup 6}Li, {sup 7}Li and {sup 10}B and an investigation of the possibility of observing terrestrial antineutrinos from the beta decay chains of U and Th as a diagnostic of terrestrial heat flow.

  17. Spectroscopy analogue-to-digital converters

    International Nuclear Information System (INIS)

    A review of world trends in the branch of electronic constructions for spectroscopy analogue-to-digital converters (ADC) applied in different fields of nuclear physics and techniques has been done. Data sheets and graphical comparison of main parameters for ADC that have appeared in world literature are also added. Recent methods applied for conversion of voltage pulse amplitude with linear coding scale have been described. Future trends up to year 1990 anticipating the increase of spectroscopy ADC resolution up to 15 bits and the shortening of ADC conversion time down to 1 μs have been presented. The dynamic development of very fast converters with low accuracy has been predicted. Present ADC are capable of sampling pulses from nuclear detectors with repetition rate up to 100 MHz. Examples of different correction methods for deleting ADC measurement errors show that both hardware and software tools may be used. On the ground of these methods one can use for spectroscopy ADC design commercially available integrated circuits with large scale integration. Then good metrology parameters, simplicity of realization and small overall dimensions may be obtained. These correction methods make a compromise between speed and precision of ADC operation possible. 81 refs., 22 figs., 3 tabs. (author)

  18. The Milky Way Project and ATLASGAL: The Distribution and Physical Properties of Cold Clumps Near Infrared Bubbles

    Science.gov (United States)

    Kendrew, Sarah; Beuther, Henrik; Simpson, Robert; Csengeri, Timea; Wienen, Marion; Lintott, Chris. J.; Povich, Matthew S.; Beaumont, Chris; Schuller, Frédéric

    2016-07-01

    We present a statistical study of the distribution and physical properties of cold, dense material in and around the inner Galactic Plane near-infrared bubbles as cataloged by the Milky Way Project citizen scientists. Using data from the Atacama Pathfinder Experiment (APEX) Telescope Large Area Survey of the Galaxy 870 μm survey, we show that 48 ± 2% of all cold clumps in the studied survey region (| l| ≤slant 65^\\circ , | b| ≤slant 1^\\circ ) are found in close proximity to a bubble, and 25 ± 2% appear directly projected toward a bubble rim. A two-point correlation analysis confirms the strong correlation of massive cold clumps with expanding bubbles. It shows an overdensity of clumps along bubble rims that grows with increasing bubble size, which shows how interstellar medium material is reordered on large scales by bubble expansion around regions of massive star formation. The highest column density clumps appear to be resistent to the expansion, remaining overdense toward the bubbles’ interior rather than being swept up by the expanding edge. Spectroscopic observations in ammonia show that cold dust clumps near bubbles appear to be denser, hotter, and more turbulent than those in the field, offering circumstantial evidence that bubble-associated clumps are more likely to be forming stars. These observed differences in physical conditions persist beyond the region of the bubble rims.

  19. Development and Use of Astronomy-Like Devices for UFO Monitoring: A Research Project for the Study of UFO Physics

    Science.gov (United States)

    Teodorani, M.

    A research project aimed at studying unidentified atmospheric `nocturnal lights' in world areas of recurrence is presented. In such a context targets are considered and treated on a par with celestial and/or atmospheric objects having no fixed coordinates. Such a project involves the use of a battery of 20 mini-telescopes which can be interchangeable with wide-field lenses. Both types of light collectors, which are intended to work in the near-IR, optical and near-UV ranges, are planned to be connected to detectors for CCD imaging and fast photon-counting photometry, to objective-prisms for low-resolution spectroscopy and to grism-slit spectrographs for high-resolution spectroscopy. The overall measurement instrumental platform is intended to be guided simultaneously by a radar, by an IR alarm sensor and by a laser telemetric device in order to allow physical scientists to search, point and track a given bright flying object which is characterized supposedly by random motions. Finally, physical informations which are expected to come out from data analysis are presented and discussed in detail.

  20. IAEA Coordinated Research Project on HTGR Reactor Physics, Thermal-hydraulics and Depletion Uncertainty Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Strydom, Gerhard [Idaho National Lab. (INL), Idaho Falls, ID (United States); Bostelmann, F. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-09-01

    The continued development of High Temperature Gas Cooled Reactors (HTGRs) requires verification of HTGR design and safety features with reliable high fidelity physics models and robust, efficient, and accurate codes. The predictive capability of coupled neutronics/thermal-hydraulics and depletion simulations for reactor design and safety analysis can be assessed with sensitivity analysis (SA) and uncertainty analysis (UA) methods. Uncertainty originates from errors in physical data, manufacturing uncertainties, modelling and computational algorithms. (The interested reader is referred to the large body of published SA and UA literature for a more complete overview of the various types of uncertainties, methodologies and results obtained). SA is helpful for ranking the various sources of uncertainty and error in the results of core analyses. SA and UA are required to address cost, safety, and licensing needs and should be applied to all aspects of reactor multi-physics simulation. SA and UA can guide experimental, modelling, and algorithm research and development. Current SA and UA rely either on derivative-based methods such as stochastic sampling methods or on generalized perturbation theory to obtain sensitivity coefficients. Neither approach addresses all needs. In order to benefit from recent advances in modelling and simulation and the availability of new covariance data (nuclear data uncertainties) extensive sensitivity and uncertainty studies are needed for quantification of the impact of different sources of uncertainties on the design and safety parameters of HTGRs. Only a parallel effort in advanced simulation and in nuclear data improvement will be able to provide designers with more robust and well validated calculation tools to meet design target accuracies. In February 2009, the Technical Working Group on Gas-Cooled Reactors (TWG-GCR) of the International Atomic Energy Agency (IAEA) recommended that the proposed Coordinated Research Program (CRP) on

  1. IAEA Coordinated Research Project on HTGR Reactor Physics, Thermal-hydraulics and Depletion Uncertainty Analysis

    International Nuclear Information System (INIS)

    The continued development of High Temperature Gas Cooled Reactors (HTGRs) requires verification of HTGR design and safety features with reliable high fidelity physics models and robust, efficient, and accurate codes. The predictive capability of coupled neutronics/thermal-hydraulics and depletion simulations for reactor design and safety analysis can be assessed with sensitivity analysis (SA) and uncertainty analysis (UA) methods. Uncertainty originates from errors in physical data, manufacturing uncertainties, modelling and computational algorithms. (The interested reader is referred to the large body of published SA and UA literature for a more complete overview of the various types of uncertainties, methodologies and results obtained). SA is helpful for ranking the various sources of uncertainty and error in the results of core analyses. SA and UA are required to address cost, safety, and licensing needs and should be applied to all aspects of reactor multi-physics simulation. SA and UA can guide experimental, modelling, and algorithm research and development. Current SA and UA rely either on derivative-based methods such as stochastic sampling methods or on generalized perturbation theory to obtain sensitivity coefficients. Neither approach addresses all needs. In order to benefit from recent advances in modelling and simulation and the availability of new covariance data (nuclear data uncertainties) extensive sensitivity and uncertainty studies are needed for quantification of the impact of different sources of uncertainties on the design and safety parameters of HTGRs. Only a parallel effort in advanced simulation and in nuclear data improvement will be able to provide designers with more robust and well validated calculation tools to meet design target accuracies. In February 2009, the Technical Working Group on Gas-Cooled Reactors (TWG-GCR) of the International Atomic Energy Agency (IAEA) recommended that the proposed Coordinated Research Program (CRP) on

  2. The LEP project Lifting the curtain on physics of the year 2000

    CERN Document Server

    Kanel, A

    1982-01-01

    Describes some of the work carried out by CERN, particularly that concerning the proton and neutron. A few details are given of installed plant for this type of research. The author deals particularly with the LEP machine (Large Electron Positron collider). The reasons for having such a machine are given and this is followed by a description of some of the techniques used. Public fears have been raised concerning the project and, because of this, CERN has organised three public debates at Geneva for discussion of all aspects involved. These include atom bombs, nuclear energy, and stocking of radioactive waste material. There have been some threats of sabotage regarding the LEP installation.

  3. Final report on LDRD project : coupling strategies for multi-physics applications.

    Energy Technology Data Exchange (ETDEWEB)

    Hopkins, Matthew Morgan; Moffat, Harry K.; Carnes, Brian; Hooper, Russell Warren; Pawlowski, Roger P.

    2007-11-01

    Many current and future modeling applications at Sandia including ASC milestones will critically depend on the simultaneous solution of vastly different physical phenomena. Issues due to code coupling are often not addressed, understood, or even recognized. The objectives of the LDRD has been both in theory and in code development. We will show that we have provided a fundamental analysis of coupling, i.e., when strong coupling vs. a successive substitution strategy is needed. We have enabled the implementation of tighter coupling strategies through additions to the NOX and Sierra code suites to make coupling strategies available now. We have leveraged existing functionality to do this. Specifically, we have built into NOX the capability to handle fully coupled simulations from multiple codes, and we have also built into NOX the capability to handle Jacobi Free Newton Krylov simulations that link multiple applications. We show how this capability may be accessed from within the Sierra Framework as well as from outside of Sierra. The critical impact from this LDRD is that we have shown how and have delivered strategies for enabling strong Newton-based coupling while respecting the modularity of existing codes. This will facilitate the use of these codes in a coupled manner to solve multi-physic applications.

  4. Development, physics basis, and performance projections for hybrid scenario operation in ITER on DIII-D

    International Nuclear Information System (INIS)

    A new standard in stationary tokamak performance is emerging from experiments on DIII-D. These experiments have demonstrated the ability to operate near the free boundary, n=1 stability limit with good confinement quality under stationary conditions. The normalized fusion performance is at or above that projected for Qfus = 10 operation in the International Thermonuclear Experimental Reactor (ITER) design over a wide operating range in both edge safety factor (3.2-4.5) and plasma density (35%-70% of the Greenwald density). Projections to ITER based on this data is uniformly positive and indicate that a wide range of operating options may be available on ITER, including the possibility of sustained ignition. Recent experiments have demonstrated the importance of a small m=3, n=2 neoclassical tearing mode in avoiding sawteeth and the effect of edge localized modes on tearing mode stability at an edge safety factor near 3. Transport studies using the GLF23 turbulence transport code indicate that ExB stabilization is important in reproducing the measured profiles in the simulation. Yet, even in cases in which the toroidal rotation is low, confinement quality is robustly better than the standard H-mode confinement scalings. (author)

  5. Natural analogue studies as supplements to biomineralization research

    Energy Technology Data Exchange (ETDEWEB)

    McNeil, M.B. [Nuclear Regulatory Commission, Washington, DC (United States)

    1995-09-01

    Chemical reactions can alter the chemistry and crystal structure of solid objects over archeological or geological times, while preserving external physical shapes. The reactions resulting in these structures offer natural analogues to laboratory experiments in biomineralization and to biologically influenced alteration of nuclear waste packages, and thus, they offer the only available way of validating models that purport waste package behavior over archaeological or geological times. Potential uses of such analogues in the construction and validation of hypothetical mechanisms of microbiological corrosion and biomineralization are reviewed. Evidence from such analogues suggests that biofilms can control materials alteration in ways usually overlooked. The newly hypothesized mechanisms involve control by biofilms of the cation flow near the solid surface and offer plausible mechanisms for the formation of mixed-cation minerals under conditions that would lead to dealloying in abiotic experiments; they also account for the formation of unusual minerals [such as posnjakite, Cu{sub 4}SO{sub 4}(OH){sub 6{center_dot}}H{sub 2}O] and mineral morphologies unusual in corrosion [malachite, Cu{sub 2}CO{sub 3}(OH){sub 2}, rarely forms botryoidally under corrosion conditions and its occasional presence on archaeological objects that appear to have undergone microbiological corrosion may be related to biofilm phenomena].

  6. Natural analogue studies as supplements to biomineralization research

    International Nuclear Information System (INIS)

    Chemical reactions can alter the chemistry and crystal structure of solid objects over archeological or geological times, while preserving external physical shapes. The reactions resulting in these structures offer natural analogues to laboratory experiments in biomineralization and to biologically influenced alteration of nuclear waste packages, and thus, they offer the only available way of validating models that purport waste package behavior over archaeological or geological times. Potential uses of such analogues in the construction and validation of hypothetical mechanisms of microbiological corrosion and biomineralization are reviewed. Evidence from such analogues suggests that biofilms can control materials alteration in ways usually overlooked. The newly hypothesized mechanisms involve control by biofilms of the cation flow near the solid surface and offer plausible mechanisms for the formation of mixed-cation minerals under conditions that would lead to dealloying in abiotic experiments; they also account for the formation of unusual minerals [such as posnjakite, Cu4SO4(OH)6·H2O] and mineral morphologies unusual in corrosion [malachite, Cu2CO3(OH)2, rarely forms botryoidally under corrosion conditions and its occasional presence on archaeological objects that appear to have undergone microbiological corrosion may be related to biofilm phenomena

  7. Simulated Milky Way analogues: implications for dark matter direct searches

    CERN Document Server

    Bozorgnia, Nassim; Schaller, Matthieu; Lovell, Mark; Bertone, Gianfranco; Frenk, Carlos S; Crain, Robert A; Navarro, Julio F; Schaye, Joop; Theuns, Tom

    2016-01-01

    We study the implications of galaxy formation on dark matter direct detection using high resolution hydrodynamic simulations of Milky Way-like galaxies simulated within the EAGLE and APOSTLE projects. We identify Milky Way analogues that satisfy observational constraints on the Milky Way rotation curve and total stellar mass. We then extract the dark matter density and velocity distribution in the Solar neighbourhood for this set of Milky Way analogues, and use them to analyse the results of current direct detection experiments. For most Milky Way analogues, the event rates in direct detection experiments obtained from the best fit Maxwellian distribution (with peak speed of 223 - 289 km/s) are similar to those obtained directly from the simulations. As a consequence, the allowed regions and exclusion limits set by direct detection experiments in the dark matter mass and spin-independent cross section plane shift by a few GeV compared to the Standard Halo Model, at low dark matter masses. For each dark matter...

  8. Simulated Milky Way analogues: implications for dark matter direct searches

    Science.gov (United States)

    Bozorgnia, Nassim; Calore, Francesca; Schaller, Matthieu; Lovell, Mark; Bertone, Gianfranco; Frenk, Carlos S.; Crain, Robert A.; Navarro, Julio F.; Schaye, Joop; Theuns, Tom

    2016-05-01

    We study the implications of galaxy formation on dark matter direct detection using high resolution hydrodynamic simulations of Milky Way-like galaxies simulated within the EAGLE and APOSTLE projects. We identify Milky Way analogues that satisfy observational constraints on the Milky Way rotation curve and total stellar mass. We then extract the dark matter density and velocity distribution in the Solar neighbourhood for this set of Milky Way analogues, and use them to analyse the results of current direct detection experiments. For most Milky Way analogues, the event rates in direct detection experiments obtained from the best fit Maxwellian distribution (with peak speed of 223–289 km/s) are similar to those obtained directly from the simulations. As a consequence, the allowed regions and exclusion limits set by direct detection experiments in the dark matter mass and spin-independent cross section plane shift by a few GeV compared to the Standard Halo Model, at low dark matter masses. For each dark matter mass, the halo-to-halo variation of the local dark matter density results in an overall shift of the allowed regions and exclusion limits for the cross section. However, the compatibility of the possible hints for a dark matter signal from DAMA and CDMS-Si and null results from LUX and SuperCDMS is not improved.

  9. Nutrition and physical activity programs for obesity treatment (PRONAF study: methodological approach of the project

    Directory of Open Access Journals (Sweden)

    Zapico Augusto G

    2012-12-01

    Full Text Available Abstract Background At present, scientific consensus exists on the multifactorial etiopatogenia of obesity. Both professionals and researchers agree that treatment must also have a multifactorial approach, including diet, physical activity, pharmacology and/or surgical treatment. These two last ones should be reserved for those cases of morbid obesities or in case of failure of the previous ones. The aim of the PRONAF study is to determine what type of exercise combined with caloric restriction is the most appropriate to be included in overweigth and obesity intervention programs, and the aim of this paper is to describe the design and the evaluation methods used to carry out the PRONAF study. Methods/design One-hundred nineteen overweight (46 males and 120 obese (61 males subjects aged 18–50 years were randomly assigned to a strength training group, an endurance training group, a combined strength + endurance training group or a diet and physical activity recommendations group. The intervention period was 22 weeks (in all cases 3 times/wk of training for 22 weeks and 2 weeks for pre and post evaluation. All subjects followed a hypocaloric diet (25-30% less energy intake than the daily energy expenditure estimated by accelerometry. 29–34% of the total energy intake came from fat, 14–20% from protein, and 50–55% from carbohydrates. The mayor outcome variables assesed were, biochemical and inflamatory markers, body composition, energy balance, physical fitness, nutritional habits, genetic profile and quality of life. 180 (75.3% subjects finished the study, with a dropout rate of 24.7%. Dropout reasons included: personal reasons 17 (28.8%, low adherence to exercise 3 (5.1%, low adherence to diet 6 (10.2%, job change 6 (10.2%, and lost interest 27 (45.8%. Discussion Feasibility of the study has been proven, with a low dropout rate which corresponds to the estimated sample size. Transfer of knowledge is foreseen as a spin-off, in order

  10. The Large Hadron Collider project: organizational and financial matters (of physics at the terascale)

    CERN Document Server

    Engelen, Jos

    2012-01-01

    In this paper, I present a view of organizational and financial matters relevant for the successful construction and operation of the experimental set-ups at the Large Hadron Collider of CERN, the European Laboratory for Particle Physics in Geneva. Construction of these experiments was particularly challenging: new detector technologies had to be developed; experimental set-ups that are larger and more complex than ever before had to be constructed; and larger collaborations than ever before had to be organized. Fundamental to the success were: the ‘reference’ provided by CERN, peer review, signed memoranda of understanding, well-organized resources review boards as an interface to the national funding agencies and collegial, but solidly organized, experimental collaborations.

  11. Family circumstance, sedentary behaviour and physical activity in adolescents living in England: Project STIL

    Directory of Open Access Journals (Sweden)

    Gorely Trish

    2009-06-01

    Full Text Available Abstract Background Identification of non-modifiable correlates of physical activity and sedentary behaviour in youth contributes to the development of effective targeted intervention strategies. The purpose of this research was to examine the relationships between family circumstances (e.g. socio-economic status, single vs. dual parent household, presence/absence of siblings and leisure-time physical activity and sedentary behaviours in adolescents. Methods A total of 1171 adolescents (40% male; mean age 14.8 years completed ecological momentary assessment diaries every 15 minutes for 3 weekdays outside of school hours and 1 weekend day. Analysed behaviours were sports/exercise, active travel, TV viewing, computer use, sedentary socialising (hanging-out, using the telephone, sitting and talking and total sedentary behaviour. Linear regression was employed to estimate levels of association between individual family circumstance variables and each behaviour. Results Compared to girls from higher socioeconomic status (SES groups, girls from low SES groups reported higher weekend TV viewing and higher weekday total sedentary behaviour. For boys, single parent status was associated with greater total sedentary behaviour compared to those from dual parent households. Boys and girls from low socio-economic neighbourhoods reported lower participation in sports/exercise compared to those living in higher socio-economic neighbourhoods. Conclusion Associations were not consistent across behaviours or between genders. Overall, findings indicate that boys from single parent households and girls from low socio-economic families may be at increased risk of high sedentary behaviour. Those living in low socioeconomic neighbourhoods may be at increased risk of reduced participation in sports and exercise.

  12. The CHUVA Project Contributions to the Understanding of Anthropogenic Interactions Affecting the Atmospheric Physics over Amazonas.

    Science.gov (United States)

    Machado, L.; Cecchini, M. A.; Gonçalves, W.

    2014-12-01

    CHUVA, meaning "rain" in Portuguese, is the acronym for the Cloud processes of tHe main precipitation systems in Brazil: A contribUtion to cloud resolVing modeling and to the GPM (GlobAl Precipitation Measurement). The CHUVA project has conducted six field campaigns; the last campaign was held in Manaus in 2014 jointly with GoAmazon and ACRIDICON. CHUVA's main scientific motivation is to contribute to the understanding of cloud processes, which represent one of the least understood components of the weather and climate system. This study will briefly describe the CHUVA project and the main scientific results obtained in the Amazon region. Specifically, we will describe the results of one year radar observation of Manaus rainfall and the relationship with black carbon. The results indicate that the aerosol influence on precipitating systems is modulated by the atmospheric instability degree. For stable atmospheres, the higher the aerosol concentration, the lower the precipitation over the region. On the other hand, for unstable cases, higher concentrations of particulate material are associated with more precipitation, elevated presence of ice and larger rain cells, which suggests an association with long lived systems. Also we will describe some preliminary results obtained during GoAmazon describing the cloud and rainfall size distribution (DSD). The DSD was adjusted to the gamma function using the momentum method and disposed in the three-dimensional space of the gamma parameters: the intercept, the shape and the width. Each point in this three-dimensional space corresponds to a specific DSD and the ensemble of points describes all regimes of precipitation in Amazon. Based in this Gamma space we will discuss the characteristics of the rainfall regime and anthropogenic features.

  13. The Numerical Tokamak Project (NTP) simulation of turbulent transport in the core plasma: A grand challenge in plasma physics

    International Nuclear Information System (INIS)

    The long-range goal of the Numerical Tokamak Project (NTP) is the reliable prediction of tokamak performance using physics-based numerical tools describing tokamak physics. The NTP is accomplishing the development of the most advanced particle and extended fluid model's on massively parallel processing (MPP) environments as part of a multi-institutional, multi-disciplinary numerical study of tokamak core fluctuations. The NTP is a continuing focus of the Office of Fusion Energy's theory and computation program. Near-term HPCC work concentrates on developing a predictive numerical description of the core plasma transport in tokamaks driven by low-frequency collective fluctuations. This work addresses one of the greatest intellectual challenges to our understanding of the physics of tokamak performance and needs the most advanced computational resources to progress. We are conducting detailed comparisons of kinetic and fluid numerical models of tokamak turbulence. These comparisons are stimulating the improvement of each and the development of hybrid models which embody aspects of both. The combination of emerging massively parallel processing hardware and algorithmic improvements will result in an estimated 10**2--10**6 performance increase. Development of information processing and visualization tools is accelerating our comparison of computational models to one another, to experimental data, and to analytical theory, providing a bootstrap effect in our understanding of the target physics. The measure of success is the degree to which the experimentally observed scaling of fluctuation-driven transport may be predicted numerically. The NTP is advancing the HPCC Initiative through its state-of-the-art computational work. We are pushing the capability of high performance computing through our efforts which are strongly leveraged by OFE support

  14. Antimicrobial Activity of Resveratrol Analogues

    Directory of Open Access Journals (Sweden)

    Malik Chalal

    2014-06-01

    Full Text Available Stilbenes, especially resveratrol and its derivatives, have become famous for their positive effects on a wide range of medical disorders, as indicated by a huge number of published studies. A less investigated area of research is their antimicrobial properties. A series of 13 trans-resveratrol analogues was synthesized via Wittig or Heck reactions, and their antimicrobial activity assessed on two different grapevine pathogens responsible for severe diseases in the vineyard. The entire series, together with resveratrol, was first evaluated on the zoospore mobility and sporulation level of Plasmopara viticola (the oomycete responsible for downy mildew. Stilbenes displayed a spectrum of activity ranging from low to high. Six of them, including the most active ones, were subsequently tested on the development of Botrytis cinerea (fungus responsible for grey mold. The results obtained allowed us to identify the most active stilbenes against both grapevine pathogens, to compare the antimicrobial activity of the evaluated series of stilbenes, and to discuss the relationship between their chemical structure (number and position of methoxy and hydroxy groups and antimicrobial activity.

  15. Antimicrobial activity of resveratrol analogues.

    Science.gov (United States)

    Chalal, Malik; Klinguer, Agnès; Echairi, Abdelwahad; Meunier, Philippe; Vervandier-Fasseur, Dominique; Adrian, Marielle

    2014-01-01

    Stilbenes, especially resveratrol and its derivatives, have become famous for their positive effects on a wide range of medical disorders, as indicated by a huge number of published studies. A less investigated area of research is their antimicrobial properties. A series of 13 trans-resveratrol analogues was synthesized via Wittig or Heck reactions, and their antimicrobial activity assessed on two different grapevine pathogens responsible for severe diseases in the vineyard. The entire series, together with resveratrol, was first evaluated on the zoospore mobility and sporulation level of Plasmopara viticola (the oomycete responsible for downy mildew). Stilbenes displayed a spectrum of activity ranging from low to high. Six of them, including the most active ones, were subsequently tested on the development of Botrytis cinerea (fungus responsible for grey mold). The results obtained allowed us to identify the most active stilbenes against both grapevine pathogens, to compare the antimicrobial activity of the evaluated series of stilbenes, and to discuss the relationship between their chemical structure (number and position of methoxy and hydroxy groups) and antimicrobial activity. PMID:24918540

  16. Heterocyclic chalcone analogues as potential anticancer agents.

    Science.gov (United States)

    Sharma, Vikas; Kumar, Vipin; Kumar, Pradeep

    2013-03-01

    Chalcones, aromatic ketones and enones acting as the precursor for flavonoids such as Quercetin, are known for their anticancer effects. Although, parent chalcones consist of two aromatic rings joined by a three-carbon α,β-unsaturated carbonyl system, various synthetic compounds possessing heterocyclic rings like pyrazole, indole etc. are well known and proved to be effective anticancer agents. In addition to their use as anticancer agents in cancer cell lines, heterocyclic analogues are reported to be effective even against resistant cell lines. In this connection, we hereby highlight the potential of various heterocyclic chalcone analogues as anticancer agents with a brief summary about therapeutic potential of chalcones, mechanism of anticancer action of various chalcone analogues, and current and future prospects related to the chalcones-derived anticancer research. Furthermore, some key points regarding chalcone analogues have been reviewed by analyzing their medicinal properties. PMID:22721390

  17. Acoustojet: acoustic analogue of photonic jet phenomenon

    CERN Document Server

    Minin, Igor V

    2016-01-01

    It has been demonstrated for the first time that an existence of acoustic analogue of photonic jet phenomenon, called acoustojet, providing for subwavelength localization of acoustic field in the shadow area of arbitrary 3D penetrable mesoscale particle, is possible.

  18. Total Synthesis of the Analogue of Icogenin

    Institute of Scientific and Technical Information of China (English)

    Shu Jie HOU; Peng XU; Liang ZHOU; De Quan YU; Ping Sheng LEI; Chuan Chun ZOU

    2006-01-01

    One of the analogues of icogenin, a natural furostanol saponin showing strong cytotoxic effect on cancer cell, was first synthesized via convergent strategy by using diosgenin and available monosaccharides as starting materials,

  19. Natural analogues and radionuclide transport model validation

    International Nuclear Information System (INIS)

    In this paper, some possible roles for natural analogues are discussed from the point of view of those involved with the development of mathematical models for radionuclide transport and with the use of these models in repository safety assessments. The characteristic features of a safety assessment are outlined in order to address the questions of where natural analogues can be used to improve our understanding of the processes involved and where they can assist in validating the models that are used. Natural analogues have the potential to provide useful information about some critical processes, especially long-term chemical processes and migration rates. There is likely to be considerable uncertainty and ambiguity associated with the interpretation of natural analogues, and thus it is their general features which should be emphasized, and models with appropriate levels of sophistication should be used. Experience gained in modelling the Koongarra uranium deposit in northern Australia is drawn upon. (author)

  20. Analysis of the PDFs of temperature from a multi-physics ensemble of climate change projections over the Iberian Peninsula

    Science.gov (United States)

    Jerez, Sonia; Montavez, Juan P.; Gomez-Navarro, Juan J.; Jimenez-Guerrero, Pedro; Lorente, Raquel; Garcia-Valero, Juan A.; Jimenez, Pedro A.; Gonzalez-Rouco, Jose F.; Zorita, Eduardo

    2010-05-01

    Regional climate change projections are affected by several sources of uncertainty. Some of them come from Global Circulation Models and scenarios.; others come from the downscaling process. In the case of dynamical downscaling, mainly using Regional Climate Models (RCM), the sources of uncertainty may involve nesting strategies, related to the domain position and resolution, soil characterization, internal variability, methods of solving the equations, and the configuration of model physics. Therefore, a probabilistic approach seems to be recommendable when projecting regional climate change. This problem is usually faced by performing an ensemble of simulations. The aim of this study is to evaluate the range of uncertainty in regional climate projections associated to changing the physical configuration in a RCM (MM5) as well as the capability when reproducing the observed climate. This study is performed over the Iberian Peninsula and focuses on the reproduction of the Probability Density Functions (PDFs) of daily mean temperature. The experiments consist on a multi-physics ensemble of high resolution climate simulations (30 km over the target region) for the periods 1970-1999 (present) and 2070-2099 (future). Two sets of simulations for the present have been performed using ERA40 (MM5-ERA40) and ECHAM5-3CM run1 (MM5-E5-PR) as boundary conditions. The future the experiments are driven by ECHAM5-A2-run1 (MM5-E5-A2). The ensemble has a total of eight members, as the result of combining the schemes for PBL (MRF and ETA), cumulus (GRELL and Kain-Fritch) and microphysics (Simple-Ice and Mixed phase). In a previous work this multi-physics ensemble has been analyzed focusing on the seasonal mean values of both temperature and precipitation. The main results indicate that those physics configurations that better reproduce the observed climate project the most dramatic changes for the future (i.e, the largest temperature increase and precipitation decrease). Among the

  1. Laser physics studies with Phebus as part of the megajoule laser project

    Energy Technology Data Exchange (ETDEWEB)

    Thiell, G.; Graillot, H.; Joly, P.; Boscheron, A.; Videau, L.; Adolf, A. [CEA Centre d`Etudes de Limeil, 94 - Villeneuve-Saint-Georges (France)

    1999-02-01

    The requirements for target ignition with megajoule-class lasers (Nakatsuka et al. (1995)) create new constraints on the laser technology namely due to the propagation, frequency conversion and focusing of ultrahigh energy pulses. This paper emphasizes some advanced laser topics that arise with megajoule-class lasers such as frequency conversion with narrow and broadband pulses, energy losses due to mechanical sources of beam birefringence and due to a too long length of propagation in air. Wavefront distortion is measured and corrected and a new focusing scheme with high efficiency gratings is presented. The third beamline of the Phebus laser (Fleurot et al. (1990)) is dedicated to these laser physics investigations at an energy density level of 3-4 GW/cm{sup 2} that is close to the megajoule laser (LMJ) beam density value. This beamline delivers up to 1.2 kJ, 1{omega} light in ns square shaped pulses, i.e. typically 1 TW pulses. The output beam aperture is reduced from 23 to 18 cm to get the required energy density level. The bandwidth of the laser pulse is varied up to a few angstroms. The beam characteristics are recorded and analysed by means of the output sensor 1{omega} energy, time profile and spectrum diagnostics and by means of a specific set of diagnostics for the 1{omega}, 2{omega} and 3{omega} beam parameters, located in the switchyard on a workstation called BACF. (orig.) 5 refs.

  2. Reviews Book: SEP Communications: Transmitting and Receiving Signals Book: Gliding for Gold Book: Radioactivity: A History of a Mysterious Science Book: The New Quantum Age Books: The Art of Science and The Oxford Book of Modern Science Writing Equipment: SEP Analogue/digital transmission unit Equipment: SEP Optical signal transmission set Book: Stars and their Spectra Book: Voicebox: The Physics and Evolution of Speech Web Watch

    Science.gov (United States)

    2012-03-01

    WE RECOMMEND Transmitting and Receiving Signals SEP booklet transmits knowledge The New Quantum Age Understanding modern quantum theory The Art of Science and The Oxford Book of Modern Science Writing Anthologies bring science to life SEP Analogue/digital transmission unit Kit transmits signal between two points SEP Optical signal transmission set Optical kit shows light transmission Stars and their Spectra New book for teaching astrophysics WORTH A LOOK Gliding for Gold Take a journey through the physics of winter sports Radioactivity: A History of a Mysterious Science Book looks at history of radioactivity Voicebox: The Physics and Evolution of Speech TExploring the evolution of the voice WEB WATCH An interactive program with promise?

  3. Synthesis of caged Garcinia xanthone analogues

    OpenAIRE

    Cho, Woo Cheal

    2009-01-01

    A new synthetic strategy is developed toward the synthesis of the caged Garcinia xanthone analogues. The key to the strategy is a Pd-catalyzed reverse prenylation reaction. This new synthetic approach provides a rapid and efficient access to various caged analogues, including cluvenone which is known to induce apoptosis and exhibit significant cytotoxicity in various cancer cell lines. Evaluation of their growth inhibitory activities also leads to identification of the pharmacophoric motif of...

  4. Current european regulatory perspectives on insulin analogues

    OpenAIRE

    Enzmann Harald G; Weise Martina

    2011-01-01

    Abstract Insulin analogues are increasingly considered as an alternative to human insulin in the therapy of diabetes mellitus. Insulin analogues (IAs) are chemically different from human insulin and may have different pharmacokinetic or pharmacodynamic properties. The significance of the modifications of the insulin molecule for the safety profile of IAs must be considered. This review describes the regulatory procedure and the expectations for the scientific content of European marketing aut...

  5. Analogue of the Event Horizon in Fibers

    OpenAIRE

    Konig, Friedrich; Philbin, Thomas G.; Kuklewicz, Chris; Robertson, Scott; Hill, Stephen; Leonhardt, Ulf

    2010-01-01

    In conclusion, we have developed a theory for artificial event horizons in fibers. Experimentally, light was blue-shifted by a near group velocity-matched pulse. The measured data was explained by the presence of an optical group velocity horizon inside the fiber. A very good agreement between theory and experiment was observed. The blue shifting corresponds to the optical analogue of trans-Planckian frequency shifts in astrophysics (t'Hooft, 1985; Jacobson, 1991). The temperature of analogue...

  6. Newer insulin analogues and inhaled insulin

    OpenAIRE

    Girish C; Manikandan S; Jayanthi M

    2006-01-01

    Diabetes is a metabolic disease with high prevalence worldwide. Exogenous insulin is used in the management of this condition. The development of human insulin has provided tighter control of glycaemia in diabetic patients. Insulin analogues like insulin lispro and aspart were developed to closely match its profile with physiological secretion. The newer additions to this armamentarium are insulin glulisine, insulin detemir and albulin.Insulin glulisine is a short acting analogue with a rapid...

  7. Somatostatin analogue treatment of neuroendocrine tumours.

    OpenAIRE

    de Herder, W. W.; van der Lely, A.J.; Lamberts, S. W.

    1996-01-01

    The long-acting analogues of somatostatin have an established place in the medical treatment of patients with neuroendocrine tumours. They act through binding with specific, high-affinity membrane receptors. Somatostatin analogue therapy is an effective and safe treatment for most growth hormone and thyrothropin-secreting pituitary adenomas. The potential therapeutic consequences of the presence of somatostatin receptors on clinically 'nonfunctioning' pituitary tumours are still uncertain. So...

  8. The User Community and a Multi-Mission Data Project: Services, Experiences and Directions of the Space Physics Data Facility

    Science.gov (United States)

    Fung, Shing F.; Bilitza, D.; Candey, R.; Chimiak, R.; Cooper, John; Fung, Shing; Harris, B.; Johnson R.; King, J.; Kovalick, T.; Leckner, H.; Papitashvili, N.; Roberts, Aaron

    2008-01-01

    From a user's perspective, the multi-mission data and orbit services of NASA's Space Physics Data Facility (SPDF) project offer a unique range of important data and services highly complementary to other services presently available or now evolving in the international heliophysics data environment. The VSP (Virtual Space Physics Observatory) service is an active portal to a wide range of distributed data sources. CDAWeb (Coordinate Data Analysis Web) enables plots, listings and file downloads for current data cross the boundaries of missions and instrument types (and now including data from THEMIS and STEREO). SSCWeb, Helioweb and our 3D Animated Orbit Viewer (TIPSOD) provide position data and query logic for most missions currently important to heliophysics science. OMNIWeb with its new extension to 1- and 5-minute resolution provides interplanetary parameters at the Earth's bow shock as a unique value-added data product. SPDF also maintains NASA's CDF (common Data Format) standard and a range of associated tools including translation services. These capabilities are all now available through webservices-based APIs as well as through our direct user interfaces. In this paper, we will demonstrate the latest data and capabilities now supported in these multi-mission services, review the lessons we continue to learn in what science users need and value in this class of services, and discuss out current thinking to the future role and appropriate focus of the SPDF effort in the evolving and increasingly distributed heliophysics data environment.

  9. Enhancing the High School Physics Experience with Cosmic Ray Research -- The Cosmic Ray Observatory Project (CROP) in Nebraska

    Science.gov (United States)

    Snow, Gregory

    2007-04-01

    The Cosmic Ray Observatory Project (CROP) is a statewide education and research experiment involving Nebraska high school students, teachers, and university undergraduates in the study of extensive cosmic-ray air showers. A network of high school teams construct, install, and operate school-based detectors in coordination with University of Nebraska physics professors and graduate students. The detector system at each school is an array of scintillation counters recycled from the Chicago Air Shower Array in weather-proof enclosures on the school roof, with a GPS receiver providing a time stamp for cosmic-ray events. The detectors are connected to triggering electronics and a data-acquisition PC inside the building. Students share data via the Internet to search for time coincidences with other sites. CROP has enlisted 27 schools in its first five years of operation with the aim of expanding to the 314 high schools in the state over the next several years. The presentation will highlight the scientific, educational, and professional development achievements of the project to date.

  10. EUTEMPE-RX, an EC supported FP7 project for the training and education of medical physics experts in radiology.

    Science.gov (United States)

    Bosmans, H; Bliznakova, K; Padovani, R; Christofides, S; Van Peteghem, N; Tsapaki, V; Caruana, C J; Vassileva, J

    2015-07-01

    The core activity of the medical physics expert (MPE) is to ensure optimal use of ionising radiation in healthcare. It is essential that these healthcare professionals are trained to the highest level, defined as European Qualifications Framework for Lifelong Learning (EQF) level 8 by the European Commission's Radiation Protection Report 174 'Guidelines on the MPE'. The main objective of the EUTEMPE-RX project is to provide a model training scheme that allows the medical physicist in diagnostic and interventional radiology (D&IR) to reach this high level. A European network of partners was brought together in this FP7 EC project to ensure sufficient expertise in all aspects of the subject and to create a harmonised course programme. Targeted participants are medical physicists in D&IR in hospitals, engineers and scientists in medical device industries and officers working in regulatory authorities. Twelve course modules will be developed at EQF level 8, with radiation safety and diagnostic effectiveness being prevalent subjects. The modules will combine online with face-to-face teaching using a blended learning approach. PMID:25969526

  11. EUTEMPE-RX, an EC supported FP7 project for the training and education of medical physics experts in radiology

    International Nuclear Information System (INIS)

    The core activity of the medical physics expert (MPE) is to ensure optimal use of ionising radiation in health care. It is essential that these health care professionals are trained to the highest level, defined as European Qualifications Framework for Lifelong Learning (EQF) level 8 by the European Commission's Radiation Protection Report 174 'Guidelines on the MPE'. The main objective of the EUTEMPE-RX project is to provide a model training scheme that allows the medical physicist in diagnostic and interventional radiology (D and IR) to reach this high level. A European network of partners was brought together in this FP7 EC project to ensure sufficient expertise in all aspects of the subject and to create a harmonised course programme. Targeted participants are medical physicists in D and IR in hospitals, engineers and scientists in medical device industries and officers working in regulatory authorities. Twelve course modules will be developed at EQF level 8, with radiation safety and diagnostic effectiveness being prevalent subjects. The modules will combine online with face-to-face teaching using a blended learning approach. (authors)

  12. Effect of humanin analogues on experimentally induced impairment of spatial memory in rats

    Czech Academy of Sciences Publication Activity Database

    Krejčová, G.; Patočka, J.; Slaninová, Jiřina

    2004-01-01

    Roč. 10, - (2004), s. 636-639. ISSN 1075-2617 R&D Projects: GA ČR GA305/03/1100 Institutional research plan: CEZ:AV0Z4055905 Keywords : humanin analogue * Alzheimer's disease * 3-quinuclidinyl benzilate Subject RIV: CE - Biochemistry Impact factor: 1.652, year: 2004

  13. An enzymatic glycosylation of nucleoside analogues using beta-galactosidase from Escherichia coli

    Czech Academy of Sciences Publication Activity Database

    Blažek, Jiří; Jansa, Petr; Baszczyňski, Ondřej; Kaiser, Martin Maxmilian; Otmar, Miroslav; Krečmerová, Marcela; Dračínský, Martin; Holý, Antonín; Králová, B.

    2012-01-01

    Roč. 20, č. 9 (2012), s. 3111-3118. ISSN 0968-0896 R&D Projects: GA MŠk 1M0508 Institutional research plan: CEZ:AV0Z40550506 Keywords : glycosylation * galactosylation * beta-galactosidase * enzymatic synthesis * nucleoside * acyclic nucleoside analogues Subject RIV: CC - Organic Chemistry Impact factor: 2.903, year: 2012

  14. An analogue of the space of conformal blocks in (4k+2)-dimensions

    OpenAIRE

    Gomi, Kiyonori

    2007-01-01

    Based on projective representations of smooth Deligne cohomology groups, we introduce an analogue of the space of conformal blocks to compact oriented (4k+2)-dimensional Riemannian manifolds with boundary. For the standard (4k+2)-dimensional disk, we compute the space concretely to prove that its dimension is finite.

  15. Fabric transpositions in granite plutons - an insight from non-scaled analogue modelling

    Czech Academy of Sciences Publication Activity Database

    Kratinová, Zuzana; Machek, Matěj; Kusbach, V.

    2010-01-01

    Roč. 75, č. 1 (2010), s. 267-277. ISSN 0016-7622 R&D Projects: GA AV ČR KJB300120702 Institutional research plan: CEZ:AV0Z30120515 Keywords : analogue modelling * magmatic fabrics * granite intrusions * rheology * AMS Subject RIV: DB - Geology ; Mineralogy Impact factor: 0.396, year: 2010

  16. Liposomal delivery systems for anti-cancer analogues of vitamin E

    Czech Academy of Sciences Publication Activity Database

    Koudelka, S.; Knotigova, P.T.; Masek, J.; Prochazka, L.; Lukac, R.; Miller, A.D.; Neužil, Jiří; Turanek, J.

    2015-01-01

    Roč. 207, Jun 10 (2015), s. 59-69. ISSN 0168-3659 R&D Projects: GA MŠk(CZ) ED1.1.00/02.0109 Institutional support: RVO:86652036 Keywords : Alpha-tocopheryl succinate * Analogues of vitamin E * Anti-cancer drugs Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 7.705, year: 2014

  17. Defining the selectivity of processes along the auxin response chain: a study using auxin analogues

    Czech Academy of Sciences Publication Activity Database

    Simon, Sibu; Kubeš, Martin; Baster, P.; Robert, S.; Dobrev, Petre; Friml, J.; Petrášek, Jan; Zažímalová, Eva

    2013-01-01

    Roč. 200, č. 4 (2013), s. 1034-1048. ISSN 0028-646X R&D Projects: GA ČR(CZ) GAP305/11/0797 Institutional research plan: CEZ:AV0Z50380511 Keywords : auxin analogues * auxin signalling * auxin transport Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 6.736, year: 2012

  18. Tracking of physical activity, fitness, body composition and diet from adolescence to young adulthood: The Young Hearts Project, Northern Ireland

    Directory of Open Access Journals (Sweden)

    Savage J Maurice

    2004-10-01

    Full Text Available Abstract Background The assumption that lifestyles formed early in life track into adulthood has been used to justify the targeting of health promotion programmes towards children and adolescents. The aim of the current study was to use data from the Northern Ireland Young Hearts Project to ascertain the extent of tracking, between adolescence and young adulthood, of physical activity, aerobic fitness, selected anthropometric variables, and diet. Methods Males (n 245 and females (n 231 were assessed at age 15 y, and again in young adulthood [mean (SD age 22 (1.6 y]. At both timepoints, height, weight and skinfold thicknesses were measured, and physical activity and diet were assessed by questionnaire and diet history method respectively. At 15y, fitness was assessed using the 20 metre shuttle run, while at young adulthood, the PWC170 cycle ergometer test was used. For each measurement made at 15y, subjects were ranked into 'low' (L1; lowest 25%, 'medium' (M1; middle 50% or 'high' (H1; highest 25% categories. At young adulthood, similar categories (L2, M2, H2 were created. The extent of tracking of each variable over time was calculated using 3 × 3 matrices constructed using these two sets of categories, and summarised using kappa (κ statistics. Results Tracking of diet and fitness was poor (κ ≤ 0.20 in both sexes, indicating substantial drift of subjects between the low, medium and high categories over time. The tracking of physical activity in males was fair (κ 0.202, but was poor in females (κ 0.021. In contrast, anthropometric variables such as weight, body mass index and sum of skinfolds tracked more strongly in females (κ 0.540, κ 0.307, κ 0.357 respectively than in males (κ 0.337, κ 0.199, κ 0.216 respectively. Conclusions The poor tracking of fitness and diet in both sexes, and physical activity in females, suggests that these aspects of adolescent lifestyle are unlikely to be predictive of behaviours in young adulthood. In

  19. Quantum Analogues: From Phase Transitions to Black Holes and Cosmology

    International Nuclear Information System (INIS)

    'And I cherish more than anything else the analogies, my most trustworthy masters. They know all the secrets of nature, and they ought to be least neglected in geometry.' These words of the great astronomer Johannes Kepler embody the philosophy behind the research recounted in this interesting book-a book composed of nine selected lectures (and a nice introduction by Bill Unruh) from the international workshop on 'Quantum Simulations via Analogues', which was held in the Max Planck Institute for the Physics of Complex Systems in Dresden during the summer of 2005. Analogue models of (and for) gravity have a long and distinguished history dating back to the earliest years of general relativity. However the last decade has seen a remarkable and steady development of analogue gravity models based on condensed matter systems, leading to some hundreds of published articles, numerous workshops, and several books. While the main driver for this booming field has definitely been the puzzling physics associated with quantum effects in black holes, more recently much attention has also been devoted to other interesting issues-such as cosmological particle production or the cosmological constant problem. Moreover, together with these new themes there has been a persistent interest in the possibility of simulating cosmic topological defects in the laboratory (although it should be said that momentum for this line of research has been somewhat weakened by the progressive decrease of interest in cosmological topological defects as an alternative to inflationary scenarios). All these aspects are faithfully accounted for in this book, which does a good job at presenting a vivid snapshot of many (if not quite all) of the most interesting lines of research in the field. All the articles have a self-consistent structure-which allows one to read them in arbitrary order and appreciate the full richness of each topic. However, when considered together I would say that they also provide a

  20. Glucagonlike Peptide 2 Analogue Teduglutide

    Science.gov (United States)

    Chaturvedi, Lakshmi S.; Basson, Marc D.

    2015-01-01

    IMPORTANCE Short bowel syndrome occurs when a shortened intestine cannot absorb sufficient nutrients or fluids. Teduglutide is a recombinant analogue of human glucagonlike peptide 2 that reduces dependence on parenteral nutrition in patients with short bowel syndrome by promoting enterocytic proliferation, increasing the absorptive surface area. However, enterocyte function depends not only on the number of cells that are present but also on differentiated features that facilitate nutrient absorption and digestion. OBJECTIVE To test the hypothesis that teduglutide impairs human intestinal epithelial differentiation. DESIGN AND SETTING We investigated the effects of teduglutide in the modulation of proliferation and differentiation in human Caco-2 intestinal epithelial cells at a basic science laboratory. This was an in vitro study using Caco-2 cells, a human-derived intestinal epithelial cell line commonly used to model enterocytic biology. EXPOSURE Cells were exposed to teduglutide or vehicle control. MAINOUTCOMESAND MEASURES We analyzed the cell cycle by bromodeoxyuridine incorporation or propidium iodide staining and flow cytometry and measured cell proliferation by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay. We used quantitative reverse transcription–polymerase chain reaction to assay the expression of the enterocytic differentiation markers villin, sucrase-isomaltase, glucose transporter 2 (GLUT2), and dipeptidyl peptidase 4 (DPP-4), as well as that of the putative differentiation signals schlafen 12 (SLFN12) and caudal-related homeobox intestine-specific transcription factor (Cdx2). Villin promoter activity was measured by a luciferase-based assay. RESULTS The MTS assay demonstrated that teduglutide increased cell numbers by a mean (SD) of 10% (2%) over untreated controls at a maximal 500nM (n = 6, P < .05). Teduglutide increased bromodeoxyuridine-positive cells vs untreated controls by a mean (SD

  1. Convergent syntheses of LeX analogues

    Directory of Open Access Journals (Sweden)

    An Wang

    2010-02-01

    Full Text Available The synthesis of three Lex derivatives from one common protected trisaccharide is reported. These analogues will be used respectively for competitive binding experiments, conjugation to carrier proteins and immobilization on gold. An N-acetylglucosamine monosaccharide acceptor was first glycosylated at O-4 with a galactosyl imidate. This coupling was performed at 40 °C under excess of BF3·OEt2 activation and proceeded best if the acceptor carried a 6-chlorohexyl rather than a 6-azidohexyl aglycon. The 6-chlorohexyl disaccharide was then converted to an acceptor and submitted to fucosylation yielding the corresponding protected 6-chlorohexyl Lex trisaccharide. This protected trisaccharide was used as a precursor to the 6-azidohexyl, 6-acetylthiohexyl and 6-benzylthiohexyl trisaccharide analogues which were obtained in excellent yields (70–95%. In turn, we describe the deprotection of these intermediates in one single step using dissolving metal conditions. Under these conditions, the 6-chlorohexyl and 6-azidohexyl intermediates led respectively to the n-hexyl and 6-aminohexyl trisaccharide targets. Unexpectedly, the 6-acetylthiohexyl analogue underwent desulfurization and gave the n-hexyl glycoside product, whereas the 6-benzylthiohexyl analogue gave the desired disulfide trisaccharide dimer. This study constitutes a particularly efficient and convergent preparation of these three Lex analogues.

  2. Newer insulin analogues and inhaled insulin

    Directory of Open Access Journals (Sweden)

    Girish C

    2006-03-01

    Full Text Available Diabetes is a metabolic disease with high prevalence worldwide. Exogenous insulin is used in the management of this condition. The development of human insulin has provided tighter control of glycaemia in diabetic patients. Insulin analogues like insulin lispro and aspart were developed to closely match its profile with physiological secretion. The newer additions to this armamentarium are insulin glulisine, insulin detemir and albulin.Insulin glulisine is a short acting analogue with a rapid onset of action. The antiapoptotic property, mediated through insulin substrate receptor-2 has a favourable protective action on beta cells. Insulin detemir is a long acting analogue, soluble at neutral pH, which reversibly binds to albumin in plasma, prolonging its action. Its lower affinity for insulin receptors necessitates higher doses compared to human insulin. The reduction in body weight is an additional advantage of detemir. A major concern about all newer insulin analogues is their altered mitogenic properties and resultant risk of carcinogenicity on long term use. Albulin is a latest addition of insulin analogue which is under various in vitro and in vivo studies. Inhaled insulin in powder form (Exubera is recently approved by FDA and appears promising.

  3. Hawking spectrum for a fiber-optical analogue of the event horizon

    CERN Document Server

    Bermudez, David

    2016-01-01

    Hawking radiation has been regarded as a more general phenomenon than in gravitational physics, in particular in laboratory analogues of the event horizon. Here we consider the fiber-optical analogue of the event horizon where intense light pulses in fibers establish horizons for probe light, and calculate the Hawking spectrum in an experimentally realizable system. We found that the Hawking radiation is peaked around group-velocity horizons where the speed of the pulse matches the group velocity of the probe light. The radiation nearly vanishes at the phase horizon where the speed of the pulse matches the phase velocity of light.

  4. Conformation of pyrrolidine nucleotide analogues

    Czech Academy of Sciences Publication Activity Database

    Pohl, Radek; Poštová Slavětínská, Lenka; Rejman, Dominik

    Brno : -, 2013 - (Novotný, J.; Marek, R.). C12-C12 ISBN 978-80-86441-44-3. [NMR Valtice /28./. 21.04.2013-24.04.2013, Valtice] R&D Projects: GA ČR GA13-24880S Institutional support: RVO:61388963 Keywords : conformation * NMR * pyrrolidine Subject RIV: CC - Organic Chemistry

  5. On the quantum analogue of Galileo's leaning tower experiment

    International Nuclear Information System (INIS)

    The quantum analogue of Galileo's leaning tower experiment is revisited using wave packets evolving under the gravitational potential. We first calculate the position detection probabilities for particles projected upwards against gravity around the classical turning point and also around the point of initial projection, which exhibit mass dependence at both these points. We then compute the mean arrival time of freely falling particles using the quantum probability current, which also turns out to be mass dependent. The mass dependence of both the position detection probabilities and the mean arrival time vanish in the limit of large mass. Thus, compatibility between the weak equivalence principle and quantum mechanics is recovered in the macroscopic limit of the latter

  6. Synthesis and anticancer evaluation of spermatinamine analogues

    KAUST Repository

    Moosa, Basem A.

    2016-02-04

    Spermatinamine was isolated from an Australian marine sponge, Pseudoceratina sp. as an inhibitor of isoprenylcystiene carboxyl methyltransferase (Icmt), an attractive and novel anticancer target. Herein, we report the synthesis of spermatinamine analogues and their cytotoxic evaluation against three human cancer cell lines i.e. cervix adenocarcinoma (HeLa), breast adenocarcinoma (MCF-7), and prostate carcinoma (DU145). Analogues 12, 14 and 15 were found to be the most potent against one or more cell lines with the IC50 values in the range of 5 - 10 μM. The obtained results suggested that longer polyamine linker along with aromatic oxime substitution provided the most potent analogue compounds against cancer cell lines.

  7. Geomagnetic properties of Proxima Centauri b analogues

    CERN Document Server

    Zuluaga, Jorge I

    2016-01-01

    The recent discovery of a planet around the closest star, Proxima Centauri, could represent a quantum leap on the testability of models in exoplanet sciences. Unlike any other discovered exoplanet, models of planetary processes in Proxima b could be contrasted against near future telescopic observations and far future in-situ measurements. In this paper we study the geomagnetic properties of Proxima b analogues, namely, solid planets with masses close but larger than Earth's mass, periods of rotation of several days and habitable surface conditions. Assuming different planetary masses, bulk compositions and periods of rotations, we calculate for each planetary analogue its radius, heat flux, time of inner core formation, dynamo lifetime and minimum dipole magnetic moment. We find that most ($\\gtrsim$70\\%) Proxima b analogues develop intrinsic dynamos that last at least 3 Gyr, although only half of them are older than the present age of the host star ($4-6$ Gyr). Relying in our planetary evolution models, we p...

  8. EDM planning using ETEAPOT with a resurrected AGS Electron Analogue ring

    CERN Document Server

    Talman, Richard M

    2015-01-01

    There has been much recent interest in directly measuring the electric dipole moments (EDM) of the proton and the electron. Such a measurement will require storing a polarized beam of "frozen spin" particles in an all-electric storage ring. Only one such relativistic electric accelerator has ever been built---the "Electron Analogue" ring at Brookhaven National Laboratory in 1954. By chance this electron ring, long since dismantled, would have been appropriate both for measuring the electron EDM and to serve as an inexpensive prototype for the arguably more promising, but ten times more expensive, proton EDM measurement. Today it is cheaper yet to "resurrect" the Electron Analogue ring by simulating its performance computationally. This is one purpose for the present paper. To set up these calculations has required a kind of "archeological physics" to reconstitute the detailed Electron Analogue lattice design. The new UAL/ETEAPOT code, described in detail in an accompanying paper, has been developed for modeli...

  9. A EU simulation platform for nuclear reactor safety: multi-scale and multi-physics calculations, sensitivity and uncertainty analysis (NURESIM project)

    International Nuclear Information System (INIS)

    The NURESIM project, the numerical simulation platform, is developed in the frame of the NURISP European Collaborative Project (FP7), which includes 22 organizations from 14 European countries. NURESIM intends to be a reference platform providing high quality software tools, physical models, generic functions and assessment results. The NURESIM platform provides an accurate representation of the physical phenomena by promoting and incorporating the latest advances in core physics, two-phase thermal-hydraulics and fuel modelling. It includes multi-scale and multi-physics features, especially for coupling core physics and thermal-hydraulics models for reactor safety. Easy coupling of the different codes and solvers is provided through the use of a common data structure and generic functions (e.g., for interpolation between non-conforming meshes). More generally, the platform includes generic pre-processing, post-processing and supervision functions through the open-source SALOME software, in order to make the codes more user-friendly. The platform also provides the informatics environment for testing and comparing different codes. The contribution summarizes the achievements and ongoing developments of the simulation platform in core physics, thermal-hydraulics, multi-physics, uncertainties and code integration

  10. Classical Simulated Annealing Using Quantum Analogues

    Science.gov (United States)

    La Cour, Brian R.; Troupe, James E.; Mark, Hans M.

    2016-06-01

    In this paper we consider the use of certain classical analogues to quantum tunneling behavior to improve the performance of simulated annealing on a discrete spin system of the general Ising form. Specifically, we consider the use of multiple simultaneous spin flips at each annealing step as an analogue to quantum spin coherence as well as modifications of the Boltzmann acceptance probability to mimic quantum tunneling. We find that the use of multiple spin flips can indeed be advantageous under certain annealing schedules, but only for long anneal times.

  11. Classical Simulated Annealing Using Quantum Analogues

    Science.gov (United States)

    La Cour, Brian R.; Troupe, James E.; Mark, Hans M.

    2016-08-01

    In this paper we consider the use of certain classical analogues to quantum tunneling behavior to improve the performance of simulated annealing on a discrete spin system of the general Ising form. Specifically, we consider the use of multiple simultaneous spin flips at each annealing step as an analogue to quantum spin coherence as well as modifications of the Boltzmann acceptance probability to mimic quantum tunneling. We find that the use of multiple spin flips can indeed be advantageous under certain annealing schedules, but only for long anneal times.

  12. Somatostatin analogues for acute bleeding oesophageal varices

    DEFF Research Database (Denmark)

    Gøtzsche, Peter C.; Hrobjartsson, A.

    2008-01-01

    BACKGROUND: Somatostatin and its derivatives are sometimes used for emergency treatment of bleeding oesophageal varices in patients with cirrhosis of the liver. OBJECTIVES: To study whether somatostatin or its analogues improve survival or reduce the need for blood transfusions in patients with...... bleeding oesophageal varices. SEARCH STRATEGY: PubMed and The Cochrane Library were searched (November 2007). Reference lists of publications, contacts with authors. SELECTION CRITERIA: All randomised trials comparing somatostatin or analogues with placebo or no treatment in patients suspected of acute or...

  13. Natural analogues in radioactive waste disposal

    International Nuclear Information System (INIS)

    In order to validate predictive models of the very long-term processes which effect the performance of radioactive waste repositories, there has been increasing interest in the information which can be obtained from studying similar mechanisms in natural systems. Although such analogues have been studied for many years, performance assessment methodology has now matured to the point where it can enlist the support which analogues can offer. Consequently this book assesses the safety levels attributable to underground depositories for radioactive waste be examining natural depositories to radioactive material and their degree of migration

  14. Properties of granular analogue model materials: A community wide survey

    Science.gov (United States)

    Klinkmüller, Matthias; Schreurs, Guido; Rosenau, Matthias; Kemnitz, Helga

    2016-04-01

    We report the material properties of 26 granular analogue materials used in 14 analogue modelling laboratories. We determined physical characteristics such as bulk density, grain size distribution, and grain shape, and performed ring shear tests to determine friction angles and cohesion, and uniaxial compression tests to evaluate the compaction behaviour. Mean grain size of the materials varied between (c. 100 and 400 micrometer). Analysis of grain shape factors show that the four different classes of granular materials (14 quartz sands, 5 dyed quartz sands, 4 heavy mineral sands and 3 size fractions of glass beads) can be broadly divided into two groups consisting of 12 angular and 14 rounded materials. Grain shape has an influence on friction angles, with most angular materials having higher internal friction angles (between c. 35° and 40°) than rounded materials, whereas well-rounded glass beads have the lowest internal friction angles (between c. 25° and 30°). We interpret this as an effect of intergranular sliding versus rolling . Most angular materials have also higher basal friction angles (tested for a specific foil) than more rounded materials, suggesting that angular grains scratch and wear the foil., Most materials have a cohesion in the order of 10-100 Pa except for well-rounded glass beads, which show a trend towards a quasi-cohesionless (C tests reveal that rounded grains generally show less compaction than angular grains. We interpret this to be related to the initial packing density reached during sieving which is higher for rounded grains than for angular grains. Ring-shear test data show that angular grains undergo a longer strain-hardening phase than more rounded materials. This might explain why analogue models consisting of angular grains accommodate deformation in a more distributed manner prior to strain localisation than models consisting of rounded grains. Also, models build with angular grains will tend to show more dilatancy during

  15. Palmottu natural analogue: A summary of the studies

    Energy Technology Data Exchange (ETDEWEB)

    Ahonen, L.; Kaija, J.; Paananen, M.; Ruskeeniemi, T.; Hakkarainen, V.

    2004-07-01

    This report is a review of research activities performed in the framework of Palmottu natural analogue studies. This uranium occurrence at Nummi-Pusula, Southern Finland has been a target of extensive studies since 1987, initially as a national analogue study 1996 - 2000, later on as an EU-financed international study 1996 - 2000. After that, up to 2003, Palmottu data has been used in an IAEA coordinated research project 'The use of selected safety indicators in the assessment of radioactive waste disposal'. The report gives an extensive summary of the hydrogeological research conducted, with a special emphasis on the methodology used. A wide variety of borehole geophysical and hydrogeological methods was used during the study, and are described in the report. An areal geohydrological model, based mainly on map- and airborne survey data, is presented, as well as a three-dimensional structural model of the site. Bedrock groundwater studies at Palmottu included development and use of new sampling methods. Swedish SKB sampling equipment was also used in the redoxpotential measurements and groundwater sampling. A summary of the representative groundwater Eh-values is presented in the report. For uranium, distribution in different geological units were estimated. Isotope values of some samples indicate a potential contribution of glacial melt water. Different modelling tasks were included in the Palmottu analogue study: modelling of speciation and solubility of dissolved elements, blind predictive modelling (BPM) with an intercomparison of results between different groups, and comparative transport modelling using different conceptual approaches. A updated list of Palmottu-related publications and reports is included in the report. (orig.)

  16. Palmottu natural analogue: A summary of the studies

    International Nuclear Information System (INIS)

    This report is a review of research activities performed in the framework of Palmottu natural analogue studies. This uranium occurrence at Nummi-Pusula, Southern Finland has been a target of extensive studies since 1987, initially as a national analogue study 1996 - 2000, later on as an EU-financed international study 1996 - 2000. After that, up to 2003, Palmottu data has been used in an IAEA coordinated research project 'The use of selected safety indicators in the assessment of radioactive waste disposal'. The report gives an extensive summary of the hydrogeological research conducted, with a special emphasis on the methodology used. A wide variety of borehole geophysical and hydrogeological methods was used during the study, and are described in the report. An areal geohydrological model, based mainly on map- and airborne survey data, is presented, as well as a three-dimensional structural model of the site. Bedrock groundwater studies at Palmottu included development and use of new sampling methods. Swedish SKB sampling equipment was also used in the redoxpotential measurements and groundwater sampling. A summary of the representative groundwater Eh-values is presented in the report. For uranium, distribution in different geological units were estimated. Isotope values of some samples indicate a potential contribution of glacial melt water. Different modelling tasks were included in the Palmottu analogue study: modelling of speciation and solubility of dissolved elements, blind predictive modelling (BPM) with an intercomparison of results between different groups, and comparative transport modelling using different conceptual approaches. A updated list of Palmottu-related publications and reports is included in the report. (orig.)

  17. LILA: the Long Island Lattice Analogue

    International Nuclear Information System (INIS)

    LILA is a BNL adventure to create a particle orbit and tracking program ensemble for large storage ring accelerator design and also controls operation. The accelerator physics parts are based largely on the PATRICIA program of H. Weidemann, as enhanced by S. Kheifets in a later version with multipole effects. We have emphasized the data base aspects of the tracking problem, as modern storage rings contain thousands of distinct lattice items, each with perhaps up to fifty parameters of its own. We have also introduced the general and flexible program structures long familiar to high energy physics event analysis, by which an event is reconstructed in steps from points into lines, projections into tracks, tracks to vertices and the like. Thus, LILA is a modern amalgam of the original PATRICIA, a relational data base and memory management mechanism, and a number of enhancements for treating nonlinear forces

  18. Are Physical Activity Interventions Equally Effective in Adolescents of Low and High Socio-Economic Status (SES): Results from the European Teenage Project

    Science.gov (United States)

    De Bourdeaudhuij, I.; Simon, C.; De Meester, F.; Van Lenthe, F.; Spittaels, H.; Lien, N.; Faggiano, F.; Mercken, L.; Moore, L.; Haerens, L.

    2011-01-01

    The aim was to study whether physical activity (PA) interventions in European teenagers are equally effective in adolescents of low versus high socio-economic status (SES). Based on a systematic review (Project TEENAGE), three school-based studies for secondary analyses were selected. SES stratified analyses were run in: (i) a Belgian…

  19. Analogue alternative the electronic analogue computer in Britain and the USA, 1930-1975

    CERN Document Server

    Small, James S

    2013-01-01

    We are in the midst of a digital revolution - until recently, the majority of appliances used in everyday life have been developed with analogue technology. Now, either at home or out and about, we are surrounded by digital technology such as digital 'film', audio systems, computers and telephones. From the late 1940s until the 1970s, analogue technology was a genuine alternative to digital, and the two competing technologies ran parallel with each other. During this period, a community of engineers, scientists, academics and businessmen continued to develop and promote the analogue computer.

  20. The PAAG group and natural analogues

    International Nuclear Information System (INIS)

    An overview is given of how OECD/NEA is organized with regard to questions dealing with management of radioactive wastes. The role of the two advisory groups, PAAG and ISAG, to the Radioactive waste management Committee is discussed with specific regard to the use of natural analogues in safety assessments

  1. Second-Generation Fluorescent Quadracyclic Adenine Analogues

    DEFF Research Database (Denmark)

    Dumat, Blaise; Bood, Mattias; Wranne, Moa S.;

    2015-01-01

    quadracyclic adenine analogues. The compounds were efficiently synthesized from a common intermediate through a two-step pathway with the Suzuki-Miyaura coupling as the key step. Two of the compounds, qAN1 and qAN4, display brightnesses (epsilon Phi(F)) of 1700 and 2300, respectively, in water and behave as...

  2. Synthesis of C-Arylnucleoside Analogues

    Directory of Open Access Journals (Sweden)

    Christophe Len

    2015-03-01

    Full Text Available Modified nucleoside analogues are of great biological importance as antiviral and antitumoral agents. There is special interest in the preparation of C-aryl nucleosides with an aromatic ring in different positions of the glycone for their biological activity. Different chemical synthesis strategies for these targets are described in this review.

  3. Synthesis and antimicrobial activity of squalamine analogue.

    Science.gov (United States)

    Kim, H S; Choi, B S; Kwon, K C; Lee, S O; Kwak, H J; Lee, C H

    2000-08-01

    Synthesis and antimicrobial activity of squalamine analogue 2 are reported. The synthesis of 2 was accomplished from bisnoralcohol 3. The spermidine moiety was introduced via reductive amination of an appropriately functionalized 3beta-aminosterol with spermidinyl aldehyde 17 utilizing sodium triacetoxyborohydride as the reducing agent. Compound 2 shows weaker antimicrobial activity than squalamine. PMID:11003150

  4. Somatostatin analogue scintigraphy and tuberculosis: case report

    International Nuclear Information System (INIS)

    Scintigraphy using a radiolabelled somatostatin analogue (111 In-pentetreotide) is useful in the detection of neuroendocrine tumors. But this radiopharmaceutical accumulates also in solid tumours or in inflammatory diseases such as granulomatosis. We present a case of 111 In-pentetreotide uptake in a tuberculous adenopathy. (author)

  5. Phosphate analogues in the dissection of mechanism.

    OpenAIRE

    Heidi J. Korhonen; Conway, Louis P.; Hodgson, David R. W.

    2014-01-01

    Phosphoryl group transfer is central to genetic replication, cellular signalling and many metabolic processes. Understanding the mechanisms of phosphorylation and phosphate ester and anhydride cleavage is key to efforts towards biotechnological and biomedical exploitation of phosphate-handling enzymes. Analogues of phosphate esters and anhydrides are indispensable tools, alongside protein mutagenesis and computational methods, for the dissection of phosphoryl transfer mechanisms. Hydrolysable...

  6. Historical space psychology: Early terrestrial explorations as Mars analogues

    Science.gov (United States)

    Suedfeld, Peter

    2010-03-01

    The simulation and analogue environments used by psychologists to circumvent the difficulties of conducting research in space lack many of the unique characteristics of future explorations, especially the mission to Mars. This paper suggests that appropriate additional analogues would be the multi-year maritime and terrestrial explorations that mapped the surface of the Earth in previous centuries. These, like Mars, often involved a hazardous trek through unknown territory, flanked by extended, dangerous voyages to and from the exploration sites. Characteristic issues included interpersonal relationships under prolonged stress, stretches of boredom interspersed with intense work demands, the impossibility of rescue, resupply, or other help from home, chronic danger, physical discomfort and lack of privacy, and the crucial role of the leader. Illustrative examples of one important factor, leadership style, are discussed. The examination of such expeditions can help to identify the psychological stressors that are likely to be experienced by Mars explorers, and can also indicate countermeasures to reduce the damaging impact of those stressors.

  7. Good practice criteria and improving infrastructure for leisure-time physical activity in the local arena - the Impala project, part iii.

    Directory of Open Access Journals (Sweden)

    Jana Vašíčková

    2013-03-01

    Full Text Available BACKGROUND: This project is aimed at unifying information about local infrastructure for leisure-time physical activity (LTPA in twelve European countries. This is due to the exchange of information about national strategies, policies, and mechanism at working meetings. This also includes their improvement with regard to social inequalities, inter-sectoral cooperation and participation. AIM: The aim of the third part of the IMPALA project is to summarize the results of the project into certain fundamental criteria that can be used by regional and local policy and stakeholders who can participate in planning, financing, building or managing of infrastructure for LTPA. METHODS: Based on identification of national strategies and policies (1st part of the project as well as mechanisms (2nd part of the project, we identified examples of positive practice in each of the participating countries in the sphere of LTPA infrastructures. To find out this information we used qualitative methods, namely structured interviews, focus group method, and brainstorming among relevant people who were involved into the project on national levels. RESULTS: The main outcome of the project are the guidelines that are drawn up as a list of criteria for evaluation of contemporary situations within the sphere of policy, planning, financing, building and managing of LTPA infrastructures. Another integral part that follows evaluation criteria are proposals for improving the mentioned spheres regarding to equality of approaches, inter-sectoral cooperation and participation of concerned parties. The appendix contains examples of practice that were chosen within the project from all of the participating countries and represent a certain sphere such as planning, building, financing or management. CONCLUSION: The main results of the project are: relevance of infrastructure and public physical activity connectivity; searching for the possibility to widely use the existing

  8. Identifying climate analogues for precipitation extremes for Denmark based on RCM simulations from the ENSEMBLES database

    DEFF Research Database (Denmark)

    Arnbjerg-Nielsen, Karsten; Funder, S. G.; Madsen, H.

    2015-01-01

    change over time. The study focuses on assessing climate analogues for Denmark based on current climate data set (E-OBS) observations as well as the ENSEMBLES database of future climates with the aim of projecting future precipitation extremes. The local present precipitation extremes are assessed......Climate analogues, also denoted Space-For-Time, may be used to identify regions where the present climatic conditions resemble conditions of a past or future state of another location or region based on robust climate variable statistics in combination with projections of how these statistics...... by means of intensity-duration-frequency curves for urban drainage design for the relevant locations being France, the Netherlands, Belgium, Germany, the United Kingdom, and Denmark. Based on this approach projected increases of extreme precipitation by 2100 of 9 and 21% are expected for 2 and 10 year...

  9. [Dmt(1)]DALDA analogues modified with tyrosine analogues at position 1.

    Science.gov (United States)

    Cai, Yunxin; Lu, Dandan; Chen, Zhen; Ding, Yi; Chung, Nga N; Li, Tingyou; Schiller, Peter W

    2016-08-01

    Analogues of [Dmt(1)]DALDA (H-Dmt-d-Arg-Phe-Lys-NH2; Dmt=2',6'-dimethyltyrosine), a potent μ opioid agonist peptide with mitochondria-targeted antioxidant activity were prepared by replacing Dmt with various 2',6'-dialkylated Tyr analogues, including 2',4',6'-trimethyltyrosine (Tmt), 2'-ethyl-6'-methyltyrosine (Emt), 2'-isopropyl-6'-methyltyrosine (Imt) and 2',6'-diethyltyrosine (Det). All compounds were selective μ opioid agonists and the Tmt(1)-, Emt(1) and Det(1)-analogues showed subnanomolar μ opioid receptor binding affinities. The Tmt(1)- and Emt(1)-analogues showed improved antioxidant activity compared to the Dmt(1)-parent peptide in the DPPH radical-scavenging capacity assay, and thus are of interest as drug candidates for neuropathic pain treatment. PMID:27301366

  10. What Is Physical Oceanography? A Learning Experience for Coastal and Oceanic Awareness Studies, No. 217. [Project COAST].

    Science.gov (United States)

    Delaware Univ., Newark. Coll. of Education.

    This unit is concerned with an overview of physical oceanography - the study of currents, tides, waves, and particle movements. The activities are designed for use by junior high school age students. Included in the unit are activities related to properties of sea water, physical phenomena of the ocean, and physical features of the ocean.…

  11. Recent advances in topoisomerase I-targeting agents, camptothecin analogues.

    Science.gov (United States)

    Kim, Dae-Kee; Lee, Namkyu

    2002-12-01

    The present review concentrates on camptothecin (CPT) analogues, the most extensively studied topoisomerase I (topo I) inhibitors, and provides concise information on the structural features of human topo I enzyme, mechanisms of interaction of CPT with topo I, structure-activity relationship study of CPT analogues including the influence of lactone stability on antitumor activity, and recent updates of valuable CPT analogues. PMID:12370044

  12. Alligator Rivers analogue project. Final Report. Volume 8

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-12-31

    This volume contains a description of the distribution of minerals and elements at Koongarra, including the distribution of radionuclides. The Koongarra orebody is situated 225 km east of Darwin in the Northern Territory of Australia. The zone of primary uranium mineralisation has been intersected by weathering conditions, and this has resulted in the formation of a secondary ore zone and dispersion fan in the weathered zone. The uranium distribution over the site was investigated to determine the extent and direction of uranium migration from the primary uranium mineralisation. The depth patterns of uranium concentration were also investigated to elucidate depths. The distribution of elements, rock and minerals, and how they may affect uranium mobility, or indicate interactions between uranium and solid phases, were considered. Multi-elemental analyses were carried out on many samples to provide basic concentration data about various geochemically significant elements, and to elucidate how the elements interact with one another, the solid substrate and the groundwater. This included the analysis of bulk rock samples, visually distinct sub-samples, different particle sizes and chemically defined phases. Similarly, mineralogical data supplied information on the substrate reacting with the groundwater. Extensive studies were undertaken to elucidate the form of uranium in the weathered zones. These involved optical and electron microscopy studies and auto-radiography. Spatial trends of uranium series disequilibria in bulk rock, secondary uranium minerals and different chemically defined phases were analysed. These give information about uranium deposition and leaching, the evolution of the dispersion fan, the roles and relative importance of different mineralogical phases and processes involved in the retardation of radionuclides. 157 refs., 31 tabs., 87 figs.

  13. Project for an analogue divider using electronic counting

    International Nuclear Information System (INIS)

    The apparatus which has been developed is designed to give the reciprocal of a number between 103 and 107. In practice this number can be the pulse count provided during a given time by a detector of the BF3 type during a criticality experiment. The apparatus is made up of two parts: one provides, by means of relays, a voltage proportional to the reciprocal required, the other is a numeric voltmeter measuring this voltage between 0.1 and 1 volt. The relative error of the result is under 5 per cent. (author)

  14. Alligator Rivers Analogue project. Geomorphology and paleoclimatic history

    International Nuclear Information System (INIS)

    The aim of this volume is to discuss the likely influence of geomorphological and palaeoclimatic controls on the development of the secondary dispersion fan at Koongarra. For the Koongarra area the Phanerozoic was a time of tectonic stability and predominantly subaerial denudation. The structural geology of the region facilitated the erosion of the Kombolgie Formation, setting in train the development of Koongarra Valley. With the removal of the Kombolgie cover the surface of the Cahill Formation could then be eroded. The geochemical controls on the development of the secondary dispersion fan require the orebody to be located in an oxidising weathering environment. Under the present weathering regimes it seems that this implies that the orebody is located at a depth of less than 30 m. From estimates of the present regional denudation rates of the area and wider geomorphological considerations, it is concluded that the top of the orebody would have reached such a depth at some time in the last 1-6 million years. The climates of the Late Quaternary provide some guide to Pleistocene climatic events. The most intense aridity coincided with times of global glacial maxima. There is also evidence that in the Late Cenozoic there were times of elevated rates of chemical weathering. However, the timing, nature and duration of such events is unclear. 171 refs., 4 tabs., 35 refs

  15. Alligator Rivers Analogue project. Geophysics, petrophysics and structure

    International Nuclear Information System (INIS)

    The geophysical and geological field work at Koongarra (including borehole core logging) showed that the site itself is a folded, faulted, variably fractured Precambrian psammitic and pelitic schist sequence with a quasi-horizontal weathered zone superimposed on the steeply dipping rock fabric. The site is flanked by a high resistivity younger sandstone unit to the northwest and by a magnetic amphibolite/ferricrete sequence to the far southeast. The data interpretations elicited the essential structural and broad lithological elements. Gravity, magnetic and electrical laboratory and field studies confirmed a broad folded fractured sequence of dipping layered host rocks weathered in their upper parts and trending in a southwest-northeast direction. Qualitatively interpreted anomalies indicated the trend of the main groundwater movement to the south where dolomites are thought to act as a sink. These drainage features have SP, resistivity and radiometric expression. The roles of the Kombolgie Sandstone as a source of water and the Koongarra Fault as a barrier or otherwise were not established owing to the lack of sufficient samples for testing and also on account of the difficulty of geophysical access over the site's rugged escarpment. 40 refs., 13 tabs., 69 figs

  16. Tsunamis on Mars: Earth analogues of projected Martian sediment

    Science.gov (United States)

    Mahaney, William C.; Dohm, James M.; Costa, Pedro; Krinsley, David H.

    2010-12-01

    Bolide impacts on Mars, within the proposed ocean boundaries ("contacts 1 and 2") in the northern lowlands, would certainly have generated ultra high energy waves similar to tsunamis on Earth. Impacts into putative Noachian and Hesperian seas of variable areal extents and depths would have experienced high-energy inundations (transgressions), which would have left an imprint in the stack of deposits adjacent to the proposed shorelines. On Earth, the principal influencing factors for tsunami-wave energy are the character of shoreline topography and coastal water depth, which control wave compression and shoreline friction. Shorelines with narrow embayments and steep offshore gradients produce wave compression and increased collision of grains within the carried load contrasted with linear shorelines and shallow offshore gradients that dissipate energy. Steep offshore gradients produce concentrated major wave friction with the bed engendering high kinetic energy in the wave during emplacement of tsunami-generated sediment, which differs from shallow offshore beds that produce lower frictional effects over a wider area and drawdown of wave energy. Thus, overprinting of transported quartz grains on Earth is greatest where wave energy is highest, attenuated down to minor or nil overprinting where wave energy is less. Such grain overprinting in the form of energy-induced microtextures would also be observed in other grain types such as olivine and plagioclase, as such mineralogies are expected to dominate the Martian landscape based on orbital and local field (lander and rover) perspectives. Kinetic energy variation in tsunamis is controlled more by the square of velocity than mass, the resulting collisional effects of which produce swarms of v-shaped percussion microfeatures on quartz and other silicate mineral surfaces when velocity and compression are highest. This work indicates that a valid test for the ocean hypothesis is targeting "coastal" areas adjacent to narrow embayments where offshore depths are known to be highest, as possible tsunami-emplaced sediments, especially those that have been protected from atmospheric conditions through relatively rapid burial, may reveal a high frequency of percussion cracks, features of which appear to be unique to such terrestrial environments.

  17. Alligator Rivers analogue project. Final Report. Volume 8

    International Nuclear Information System (INIS)

    This volume contains a description of the distribution of minerals and elements at Koongarra, including the distribution of radionuclides. The Koongarra orebody is situated 225 km east of Darwin in the Northern Territory of Australia. The zone of primary uranium mineralisation has been intersected by weathering conditions, and this has resulted in the formation of a secondary ore zone and dispersion fan in the weathered zone. The uranium distribution over the site was investigated to determine the extent and direction of uranium migration from the primary uranium mineralisation. The depth patterns of uranium concentration were also investigated to elucidate depths. The distribution of elements, rock and minerals, and how they may affect uranium mobility, or indicate interactions between uranium and solid phases, were considered. Multi-elemental analyses were carried out on many samples to provide basic concentration data about various geochemically significant elements, and to elucidate how the elements interact with one another, the solid substrate and the groundwater. This included the analysis of bulk rock samples, visually distinct sub-samples, different particle sizes and chemically defined phases. Similarly, mineralogical data supplied information on the substrate reacting with the groundwater. Extensive studies were undertaken to elucidate the form of uranium in the weathered zones. These involved optical and electron microscopy studies and auto-radiography. Spatial trends of uranium series disequilibria in bulk rock, secondary uranium minerals and different chemically defined phases were analysed. These give information about uranium deposition and leaching, the evolution of the dispersion fan, the roles and relative importance of different mineralogical phases and processes involved in the retardation of radionuclides. 157 refs., 31 tabs., 87 figs

  18. Alligator Rivers Analogue project. Uranium sorption. Final Report - Volume 13

    International Nuclear Information System (INIS)

    In this volume, the results of studies of uranium sorption (adsorption and desorption) to both single, well-defined mineral phases, and to selected natural (Koongarra) substrates are reported. The single phases included the amorphous iron oxide ferrihydrite, crystalline silica and two naturally occurring kaolinites, KGa-1 and Nichika. The surface properties of these materials were rigorously defined, and adsorption studies were conducted over a range of solution pH, ionic strength, carbonate content, adsorbent and adsorbate concentrations, and in the presence of uranium complexants and (potentially) competing adsorbates (such as phosphate and fluoride). The results of these studies were modelled using the 'surface complexation' approach, with a diffuse layer description of the electrical double layer. The impacts of mineral phase transformations (specifically the aging of amorphous ferrihydrite to more crystalline forms) on the uptake and desorption of uranium are also reported. The amount of data obtained in this study, with a number of experimental parameters being varied over a wide range, has enabled more confidence to be placed in the modelling results. The derived model for ferrihydrite adequately accounts for the effect on U sorption of a number of parameters, most notably pH, pCO2 and total U present. Few (if any) of the models previously proposed are adequate in this respect. While the modelling of the data for the natural substrates is not as advanced, the U sorption data on the natural substrates show similar features to the U sorption on the model substrates. This suggests that the insights obtained in the modelling of the data for ferrihydrite will be valuable in deriving a model for the more complex natural substrates

  19. Synthetic studies towards d-modified paclitaxel analogues

    Directory of Open Access Journals (Sweden)

    Matović Radomir

    2012-01-01

    Full Text Available A synthetic sequence has been developed for the preparation of 9,10-O-diacetyl-4-desmethylene-4β-(3-butenyl-4α-hydroxy-5-O-mesyltaxicin I-1,2-carbonate 3, an intermediate in the attempted synthesis of cyclobutane paclitaxel analogue. A series of reactions of 3 has been investigated, including the protection of sterically hindered C-4α hydroxy group and oxidative cleavage of the terminal double bond. Cyclization of 13 to the cyclobutane-containing intermediate failed due to unexpected instability of the DMS protecting group under basic conditions. [Acknowledgments. Financial support of the Ministry of Education and Science of the Republic of Serbia is acknowledged (Project No. 172027

  20. [Insulin analogues: modifications in the structure, molecular and metabolic consequences].

    Science.gov (United States)

    de Luis, D A; Romero, E

    2013-01-01

    Recombinant DNA technology has provided insulin analogues for the treatment of diabetes mellitus, with an efficacy and safety that has improved the treatment of this disease. We briefly review the principal characteristics of the insulin analogues currently available. Both rapid-acting (lispro, aspart and glulisine) and long acting (glargine and determir) insulin analogues are included in this review. We describe the pharmacology of each insulin analogue, their differences with the human insulin, the administration, indication, efficacy and safety. In addition we discussed the main controversies of the use of these insulin analogues. In particular, those related with the risk of cancer and retinopathy, and their use in pregnant women. PMID:23517895

  1. Upgrading of analogue gamma cameras with PC based computer system

    International Nuclear Information System (INIS)

    Full text: Dedicated nuclear medicine computers for acquisition and processing of images from analogue gamma cameras in developing countries are in many cases faulty and technologically obsolete. The aim of the upgrading project of International Atomic Energy Agency (IAEA) was to support the development of the PC based computer system which would cost 5.000 $ in total. Several research institutions from different countries (China, Cuba, India and Slovenia) were financially supported in this development. The basic demands for the system were: one acquisition card an ISA bus, image resolution up to 256x256, SVGA graphics, low count loss at high count rates, standard acquisition and clinical protocols incorporated in PIP (Portable Image Processing), on-line energy and uniformity correction, graphic printing and networking. The most functionally stable acquisition system tested on several international workshops and university clinics was the Slovenian one with a complete set of acquisition and clinical protocols, transfer of scintigraphic data from acquisition card to PC through PORT, count loss less than 1 % at count rate of 120 kc/s, improvement of integral uniformity index by a factor of 3-5 times, reporting, networking and archiving solutions for simple MS network or server oriented network systems (NT server, etc). More than 300 gamma cameras in 52 countries were digitized and put in the routine work. The project of upgrading the analogue gamma cameras yielded a high promotion of nuclear medicine in the developing countries by replacing the old computer systems, improving the technological knowledge of end users on workshops and training courses and lowering the maintenance cost of the departments. (author)

  2. The Effects of Physical Exercise with Music on Cognitive Function of Elderly People: Mihama-Kiho Project

    OpenAIRE

    Satoh, Masayuki; Ogawa, Jun-ichi; Tokita, Tomoko; Nakaguchi, Noriko; Nakao, Koji; Kida, Hirotaka; Tomimoto, Hidekazu

    2014-01-01

    Background Physical exercise has positive effects on cognitive function in elderly people. It is unknown, however, if combinations of non-pharmaceutical interventions can produce more benefits than single ones. This study aimed to identify if physical exercise combined with music improves cognitive function in normal elderly people more than exercise alone. Methods We enrolled 119 subjects (age 65–84 years old). Forty subjects performed physical exercise (once a week for an hour with professi...

  3. The Effects of Physical Exercise with Music on Cognitive Function of Elderly People: Mihama-Kiho Project

    OpenAIRE

    Masayuki Satoh; Jun-ichi Ogawa; Tomoko Tokita; Noriko Nakaguchi; Koji Nakao; Hirotaka Kida; Hidekazu Tomimoto

    2014-01-01

    BACKGROUND: Physical exercise has positive effects on cognitive function in elderly people. It is unknown, however, if combinations of non-pharmaceutical interventions can produce more benefits than single ones. This study aimed to identify if physical exercise combined with music improves cognitive function in normal elderly people more than exercise alone. METHODS: We enrolled 119 subjects (age 65-84 years old). Forty subjects performed physical exercise (once a week for an hour with profes...

  4. Physics-Based Identification, Modeling and Risk Management for Aeroelastic Flutter and Limit-Cycle Oscillations (LCO) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed research program will develop a physics-based identification, modeling and risk management infrastructure for aeroelastic transonic flutter and...

  5. Hydrothermal alterations as natural analogues of radionuclide migration in granitic rocks

    International Nuclear Information System (INIS)

    The document is the final report of the project Hydrothermal alteration systems as analogues of nuclear waste repositories in granitic rocks which was the subject of contract n0 F1 1 W/0072-F (CD) performed at shared cost between the Bureau de Recherches Geologiques et Minieres (BRGM), the Commissariat a l'Energie Atomique and the Commission of the European Communities as part of the MIRAGE programme. This study is the continuation of a preliminary study made by BRGM in 1986 and which concerned the same programme. The data given in this report were obtained from the study of the infilling and hydrothermalized walls of a mineralized vein located at Fombillou, Lot Department, in the French Massif Central. A satisfactory model of the processes generated by hydrothermal alteration then by climatic weathering such as formation of new minerals, flow of elements and variations in volume, was thus built. The mobility of elements displaying physical and chemical properties similar to those of radionuclides present in high-level radioactive waste was studied. A preliminary thermodynamic simulation of mineral transformations and transfers of matter during hydrothermal alteration was performed using the calculation code CEQCSY (Chemical EQuilibrium in Complex SYstem). This simulation is based on the values of the main physical and chemical parameters deduced from the analysis of the natural system. On the basis of the results obtained from Fombillou, an appraisal was made of the response of the granitic environment which has been disturbed by a hydrothermal system produced by heat emitted by the storage of high-level radio-active waste as well as its potential capacities of retention in case of possible leakage

  6. Holographic Fluids with Vorticity and Analogue Gravity

    CERN Document Server

    Leigh, Robert G; Petropoulos, P Marios

    2012-01-01

    We study holographic three-dimensional fluids with vorticity in local equilibrium and discuss their relevance to analogue gravity systems. The Fefferman-Graham expansion leads to the fluid's description in terms of a comoving and rotating Papapetrou-Randers frame. A suitable Lorentz transformation brings the fluid to the non-inertial Zermelo frame, which clarifies its interpretation as moving media for light/sound propagation. We apply our general results to the Lorentzian Kerr-AdS_4 and Taub-NUT-AdS_4 geometries that describe fluids in cyclonic and vortex flows respectively. In the latter case we associate the appearance of closed timelike curves to analogue optical horizons. In addition, we derive the classical rotational Hall viscosity of three-dimensional fluids with vorticity. Our formula remarkably resembles the corresponding result in magnetized plasmas.

  7. Design and synthesis of new fluconazole analogues.

    Science.gov (United States)

    Pore, Vandana S; Agalave, Sandip G; Singh, Pratiksha; Shukla, Praveen K; Kumar, Vikash; Siddiqi, Mohammad I

    2015-06-21

    We have synthesized new fluconazole analogues containing two different 1,2,3-triazole units in the side chain. The synthesis of new amide analogues using a variety of acids is also described. All the compounds showed very good antifungal activity. A hemolysis study of the most active compounds 6e and 13j showed that both compounds did not cause any hemolysis at the dilutions tested. These compounds did not exhibit any toxicity to L929 cells at MIC and lower concentrations. In the docking study, the overall binding mode of 6e and 13j appeared to be reasonable and provided a good insight into the structural basis of inhibition of Candida albicans Cyp51 by these compounds. PMID:25975803

  8. Pre-drilling calculation of geomechanical parameters for safe geothermal wells based on outcrop analogue samples

    Science.gov (United States)

    Reyer, Dorothea; Philipp, Sonja

    2014-05-01

    It is desirable to enlarge the profit margin of geothermal projects by reducing the total drilling costs considerably. Substantiated assumptions on uniaxial compressive strengths and failure criteria are important to avoid borehole instabilities and adapt the drilling plan to rock mechanical conditions to minimise non-productive time. Because core material is rare we aim at predicting in situ rock properties from outcrop analogue samples which are easy and cheap to provide. The comparability of properties determined from analogue samples with samples from depths is analysed by performing physical characterisation (P-wave velocities, densities), conventional triaxial tests, and uniaxial compressive strength tests of both quarry and equivalent core samples. "Equivalent" means that the quarry sample is of the same stratigraphic age and of comparable sedimentary facies and composition as the correspondent core sample. We determined the parameters uniaxial compressive strength (UCS) and Young's modulus for 35 rock samples from quarries and 14 equivalent core samples from the North German Basin. A subgroup of these samples was used for triaxial tests. For UCS versus Young's modulus, density and P-wave velocity, linear- and non-linear regression analyses were performed. We repeated regression separately for clastic rock samples or carbonate rock samples only as well as for quarry samples or core samples only. Empirical relations were used to calculate UCS values from existing logs of sampled wellbore. Calculated UCS values were then compared with measured UCS of core samples of the same wellbore. With triaxial tests we determined linearized Mohr-Coulomb failure criteria, expressed in both principal stresses and shear and normal stresses, for quarry samples. Comparison with samples from larger depths shows that it is possible to apply the obtained principal stress failure criteria to clastic and volcanic rocks, but less so for carbonates. Carbonate core samples have higher

  9. Electromagnetic wave analogue of electronic diode

    OpenAIRE

    Shadrivov, Ilya V.; Powell, David A.; Kivshar, Yuri S.; Fedotov, Vassili A.; Zheludev, Nikolay I.

    2010-01-01

    An electronic diode is a nonlinear semiconductor circuit component that allows conduction of electrical current in one direction only. A component with similar functionality for electromagnetic waves, an electromagnetic isolator, is based on the Faraday effect of the polarization state rotation and is also a key component of optical and microwave systems. Here we demonstrate a chiral electromagnetic diode, which is a direct analogue of an electronic diode: its functionality is underpinned by ...

  10. Acremolin : : Synthesis, Structural Revision and Analogues

    OpenAIRE

    Januar, Lawrence Alexander

    2014-01-01

    This thesis presents the total synthesis of the natural product acremolin and its structural reassignment along with attempts towards synthesizing analogues of natural product. Acremolin is a natural product reported as a 1H- azirine-containing guanine derivative isolated from Acremonium strictum. Due to the known structural instability of 1H-azirines systems, the original assignment is highly improbable. Two alternative structures were proposed based on the evaluation of spectroscopic data r...

  11. SYNTHESIS AND BIOEVALUATION OF KETOCONAZOLE THIOSEMICARBAZONE ANALOGUES

    OpenAIRE

    Y. Murti

    2011-01-01

    Ketoconazole (KTZ) is a synthetic antifungal drug used to prevent and treat fungal infections, especially in immunocompromised patients such as those with AIDS. Resistance to ketoconazole has been observed in a number of clinical fungal isolates, including C. albicans. Thus new effective agents with less toxicity against fungal infection are urgently required. With this view, ketoconazole thiosemicarbazone analogues (Compounds 1-10) were synthesized wherein condensation of different thiosemic...

  12. Analogues of a transformation formula of Ramanujan

    OpenAIRE

    Dixit, Atul

    2009-01-01

    We derive two new analogues of a transformation formula of Ramanujan involving the Gamma and Riemann zeta functions present in the Lost Notebook. Both involve infinite series consisting of Hurwitz zeta functions and yield modular relations. As a special case of the first formula, we obtain an identity involving polygamma functions given by Andrew P. Guinand and as a limiting case of the second formula, we derive the transformation formula of Ramanujan.

  13. The Brookhaven electron analogue, 1953--1957

    International Nuclear Information System (INIS)

    The following topics are discussed on the Brookhaven electron analogue: L.J. Haworth and E.L. VanHorn letters; Original G.K. Green outline for report; General description; Parameter list; Mechanical Assembly; Alignment; Degaussing; Vacuum System; Injection System; The pulsed inflector; RF System; Ferrite Cavity; Pick-up electrodes and preamplifiers; Radio Frequency power amplifier; Lens supply; Controls and Power; and RF acceleration summary

  14. Analogue cosmology in a hadronic fluid

    CERN Document Server

    Bilic, N

    2013-01-01

    The expansion of hadronic matter that takes place immediately after a heavy ion collision has certain similarity with the cosmological expansion. We study the analogue geometry of the expanding hadronic fluid, using the the formalism of relativistic acoustic geometry. We show that the propagation of massless pions provides a geometric analog of expanding spacetime equivalent to an open (k=-1)FRW cosmology. Here, we study general conditions for the formation of a trapped region with the inner boundary as a marginally trapped surface.

  15. Applying Acylated Fucose Analogues to Metabolic Glycoengineering

    OpenAIRE

    Julia Rosenlöcher; Verena Böhrsch; Michael Sacharjat; Véronique Blanchard; Christoph Giese; Volker Sandig; Christian P R Hackenberger; Stephan Hinderlich

    2015-01-01

    Manipulations of cell surface glycosylation or glycan decoration of selected proteins hold immense potential for exploring structure-activity relations or increasing glycoprotein quality. Metabolic glycoengineering describes the strategy where exogenously supplied sugar analogues intercept biosynthetic pathways and are incorporated into glycoconjugates. Low membrane permeability, which so far limited the large-scale adaption of this technology, can be addressed by the introduction of acylated...

  16. The Brookhaven electron analogue, 1953--1957

    Energy Technology Data Exchange (ETDEWEB)

    Plotkin, M.

    1991-12-18

    The following topics are discussed on the Brookhaven electron analogue: L.J. Haworth and E.L. VanHorn letters; Original G.K. Green outline for report; General description; Parameter list; Mechanical Assembly; Alignment; Degaussing; Vacuum System; Injection System; The pulsed inflector; RF System; Ferrite Cavity; Pick-up electrodes and preamplifiers; Radio Frequency power amplifier; Lens supply; Controls and Power; and RF acceleration summary.

  17. Instructional influences on analogue functional analysis outcomes.

    OpenAIRE

    Northup, John; Kodak, Tiffany; Grow, Laura; Lee, Jennifer; Coyne, Amanda

    2004-01-01

    Analogue assessments were conducted with a common contingency (escape from tasks) that varied only by three different instructions describing the contingency. In one condition, the contingency was described as "taking a break," in another condition it was described as "time-out," and no description of the contingency was provided in a third condition. The participant was a typically developing 5-year-old child with a diagnosis of attention deficit hyperactivity disorder. Rates of inappropriat...

  18. Towards translation of environmental determinants of physical activity in children into multi-sector policy measures: study design of a Dutch project

    OpenAIRE

    van Oers Hans AM; van de Goor Ien AM; Aarts Marie-Jeanne; Schuit Albertine J

    2009-01-01

    Abstract Background Physical inactivity in children is a major health problem in The Netherlands as well as in many other Western countries. In addition to health promotion among parents and children, creating "active" neighbourhoods can contribute to the solution of this health problem. However, changing environmental characteristics is often the responsibility of policy sectors outside the Public Health domain. Therefore this project identifies and evaluates the possibilities of multi-secto...

  19. Using self-determination theory to promote adolescent girls' physical activity:Exploring the theoretical fidelity of the Bristol Girls Dance Project

    OpenAIRE

    Sebire, Simon J; Kesten, Joanna; Edwards, Mark J.; May, Tom A; Banfield, Kate J; Tomkinson, Keeley T; Blair, Peter S; Bird, Emma L.; Powell, Jane E.; Jago, Russell

    2016-01-01

    Objectives: To report the theory-based process evaluation of the Bristol Girls’ Dance Project, a cluster-randomised controlled trial to increase adolescent girls’ physical activity. Design: A mixed-method process evaluation of the intervention’s self-determination theory components comprising lesson observations, post-intervention interviews and focus groups. Method: Four intervention dance lessons per dance instructor were observed, audio recorded and rated to estimate the use of need-suppo...

  20. Wind Forecast Improvement Project-2, improving model physics in complex terrain – NOAA's Plans for Improving the Rapid Refresh and High Resolution Rapid Refresh Models

    OpenAIRE

    Marquis, Melinda; Olson, Joseph; Kenyon, James; Benjamin, Stan; Wilczak, James; Bianco, Laura; Djalalova, Irina; McCaffrey, Katherine; Pichugina, Yelena; Banta, Robert; Choukulkar, Aditya; Echman, Richard; Clifton, Andrew; Carley, Jacob; Cline, Joel

    2015-01-01

    The Department of Energy is leading a second Wind Forecast Improvement Project (WFIP2), which will aim to improve modeling of complex flow. The National Oceanic and Atmospheric Administration (NOAA) will collaborate with DOE and its national labs, and the team led by Vaisala, which includes academic, utility and renewable energy partners. WFIP2 aims to improve model physics and bridge models that describe multiple scales in complex flow. Observations collected during a 12-18 month field campa...

  1. Attributing the wet Winter season 2013/14 in Southern UK and Northern France using circulation analogues statistics

    Science.gov (United States)

    Radanovics, Sabine; Hempelmann, Nils; Yiou, Pascal; Vautard, Robert

    2016-04-01

    The Winter season 2013/14 was characterised by frequent storms and record breaking seasonal precipitation sums in Southern UK, causing severe flooding. High precipitation anomalies were likewise observed in Northwestern France and Slovenia for example. Assuming that such high impact events occur under specific atmospheric circulation configurations, circulation analogues are studied here. We present a method that consists of analysing distance statistics from the circulation analogue computation and precipitation simulations using observed precipitation (gridded EOBS data and station observations) on analogue days. This method allows to compare the probabilities of finding good circulation analogues for days with heavy precipitation or strong winds during different historic periods using reanalysis data. An increasing probability of finding good analogues for those days over time can then be interpreted as an increase in the probability of occurrence of such events in terms of circulation, whereas a change in precipitation drawn from different historic periods, given a constant probability of finding good circulation analogues, can be attributed to changes in the thermodynamics. The Winter season 2013/14 had an unusually high number of days with high zonal index over the North Atlantic, but no significant trend in the zonal index or its persistence was detected in the reanalysis data. We found no change in the probability of finding good analogues for the winter days 2013/14 over different historic periods. Despite high uncertainties related to the choice of the distance metric and the precipitation resampling methodology, we found consistently higher simulated precipitation when analogues were drawn from more recent years. We found further an increase of precipitation return level for same return times in an ensemble of bias corrected EURO-CORDEX projections for the 21st century under RCPs 4.5 and 8.5. We conclude that it is likely that this precipitation event

  2. Recent outputs of the Oklo (Gabon) natural analogue study to nuclear waste disposal

    International Nuclear Information System (INIS)

    In the past twenty five years, the natural nuclear reactors of Oklo have been the subject of numerous detailed studies. First investigated for the physical and neutron aspects of the nuclear reaction, they were then reconsidered because they provide a unique opportunity in the world to study the containment of actinides and fission products in a geological formation over a broad timescale (two billion years). Although the sites investigated do not represent a complete analogue of a repository system, many of the processes studied (mass transfer to the surface, transport, migration / retention), the spatial extent of these processes, and the timescales involved, are compatible with processes liable to occur during the lifespan of a repository for the deep geological disposal of spent nuclear fuel. A fresh program was therefore initiated as a European Commission project in 1990, entitled''Oklo as a natural analog for transfer processes in a radioactive waste repository'- phase 7, and then extended by a phase 2 entitled Oklo, Natural Analogue - Behavior of Nuclear Reaction Products in a Natural Environment''. Researches conducted in phase I served to determine the physical conditions of the operation of the natural reactor, reconstruct the geological history of the reactor environment, and decode the behavior of actinides as well as fission products in the surrounding geological formations. Phase N, which ended in June 1999, had three main objectives: i) to assess radionuclide migration and retention processes from the reactor zones to the geological environment, ii) to define the confinement properties and long-term behavior of geological materials; iii) to test models of processes related to radionuclide migration and retention, and eventually to provide suitable data and scenarios for performance assessment of nuclear waste disposal. This paper proposes a synthesis of the main outputs of the Oklo project to the performance assessment of nuclear waste disposal, the

  3. Feasibility Study of Comprehensive School Physical Activity Programs in Appalachian Communities: The McDowell CHOICES Project

    Science.gov (United States)

    Jones, Emily M.; Taliaferro, Andrea R.; Elliott, Eloise M.; Bulger, Sean M.; Kristjansson, Alfgeir L.; Neal, William; Allar, Ishonté

    2014-01-01

    Increasing rates of childhood obesity has prompted calls for comprehensive approaches to school-based physical activity (PA). The purpose of this study was to evaluate the feasibility of comprehensive school physical activity program (CSPAP) development and related contextual issues within a rural Appalachian county using a Systems Approach. A…

  4. Analogues of Mathai-Quillen forms in sheaf cohomology and applications to topological field theory

    CERN Document Server

    Garavuso, R

    2013-01-01

    We construct sheaf-cohomological analogues of Mathai-Quillen forms, that is, holomorphic bundle-valued differential forms whose cohomology classes are independent of certain deformations, and which are believed to possess Thom-like properties. Ordinary Mathai-Quillen forms are special cases of these constructions, as we discuss. These sheaf-theoretic variations arise physically in A/2 and B/2 pseudo-topological field theories, and we comment on their origin and role.

  5. Analogues of Mathai-Quillen forms in sheaf cohomology and applications to topological field theory

    Science.gov (United States)

    Garavuso, Richard S.; Sharpe, Eric

    2015-06-01

    We construct sheaf-cohomological analogues of Mathai-Quillen forms, that is, holomorphic bundle-valued differential forms whose cohomology classes are independent of certain deformations, and which are believed to possess Thom-like properties. Ordinary Mathai-Quillen forms are special cases of these constructions, as we discuss. These sheaf-theoretic variations arise physically in A/2 and B/2 model pseudo-topological field theories, and we comment on their origin and role.

  6. Prolinol-based nucleoside phosphonic acids: new isosteric conformationally flexible nucleotide analogues

    Czech Academy of Sciences Publication Activity Database

    Vaněk, Václav; Buděšínský, Miloš; Rinnová, Markéta; Rosenberg, Ivan

    2009-01-01

    Roč. 65, č. 4 (2009), s. 862-876. ISSN 0040-4020 R&D Projects: GA ČR GA203/05/0827; GA MŠk(CZ) LC06077; GA MŠk LC512; GA MŠk(CZ) LC06061 Institutional research plan: CEZ:AV0Z40550506 Keywords : nucleotide analogues * phosphonates * prolinol derivatives * N-alkylation Subject RIV: CC - Organic Chemistry Impact factor: 3.219, year: 2009

  7. The influence of juvenile hormone analogue upon inner anatomy in Prorhinotermes simplex

    Czech Academy of Sciences Publication Activity Database

    Šobotník, Jan; Hanus, Robert; Weyda, František

    La Roche-en-Ardenne : -, 2008. s. 9. [IUSSI 2008. European Meeting of the International Union for the Study of Social Insects /4./. 30.08.2008-04.09.2008, La Roche-en-Ardenne] R&D Projects: GA ČR GA206/06/1643 Institutional research plan: CEZ:AV0Z40550506; CEZ:AV0Z50070508 Keywords : juvenile hormone analogue * intercastes * labial glands Subject RIV: CC - Organic Chemistry

  8. Pyrimidine acyclic nucleotide analogues with aromatic substituents in C-5 position

    Czech Academy of Sciences Publication Activity Database

    Krečmerová, Marcela; Holý, Antonín; Masojídková, Milena

    Marburg : University of Marburg, 2006. s. 111. ISBN 3-89703-685-1. [Joint Meeting of the Czech, German and Hungarian Pharmaceutical Societies. 04.10.2006-07.10.2006, Marburg] R&D Projects: GA AV ČR(CZ) 1QS400550501 Grant ostatní: Descartes Prize(XE) HPAW-2002-100096 Institutional research plan: CEZ:AV0Z40550506 Keywords : HPMPC analogues * 5-phenylcytosine derivative * antivirals Subject RIV: CC - Organic Chemistry

  9. Conformation analysis of nucleoside analogues containing selenium and tellurium in five-membered pseudosugar ring

    Czech Academy of Sciences Publication Activity Database

    Poštová Slavětínská, Lenka; Pohl, Radek; Rejman, Dominik

    Praha : Institute of Organic Chemistry and Biochemistry AS CR, v. v. i, 2014 - (Hocek, M.), s. 354-355 ISBN 978-80-86241-50-0. - (Collection Symposium Series. 14). [Symposium on Chemistry of Nucleic Acid Components /16./. Český Krumlov (CZ), 08.06.2014-13.06.2014] R&D Projects: GA ČR GA13-24880S Institutional support: RVO:61388963 Keywords : nucleoside analogues * five-membered pseudosugar ring * NMR Subject RIV: CC - Organic Chemistry

  10. Synthesis and properties of ApA analogues with shortened phosphonate internucleotide linkage

    Czech Academy of Sciences Publication Activity Database

    Králíková, Šárka; Buděšínský, Miloš; Barvík, I.; Masojídková, Milena; Točík, Zdeněk; Rosenberg, Ivan

    2011-01-01

    Roč. 30, 7/9 (2011), s. 524-543. ISSN 1525-7770 R&D Projects: GA ČR GA202/09/0193; GA AV ČR KAN200520801; GA MŠk(CZ) LC06061 Institutional research plan: CEZ:AV0Z40550506 Keywords : alpha-hydroxy-phosphonate linkage * ApA analogues * phosphonate internucleotide bond * NMR conformational study Subject RIV: CC - Organic Chemistry Impact factor: 0.899, year: 2011

  11. Effects of a piperidine ligand on DNA modification by antitumor cisplatin analogues

    Czech Academy of Sciences Publication Activity Database

    Kašpárková, Jana; Nováková, Olga; Najajreh, Y.; Gibson, D.; Perez, J.M.; Brabec, Viktor

    2003-01-01

    Roč. 16, č. 11 (2003), s. 1424-1432. ISSN 0893-228X R&D Projects: GA ČR GA305/02/1552; GA AV ČR KJB5004301; GA AV ČR IBS5004009 Institutional research plan: CEZ:AV0Z5004920 Keywords : DNA * piperidine ligand * antitumor cisplatin analogues Subject RIV: BO - Biophysics Impact factor: 3.332, year: 2003

  12. Allopregnanolone and Pregnanolone Analogues Modified in the C Ring: Synthesis and Activity

    Czech Academy of Sciences Publication Activity Database

    Slavíková, Barbora; Bujons, J.; Matyáš, Libor; Vidal, M.; Babot, Z.; Krištofíková, Z.; Suňol, C.; Kasal, Alexander

    2013-01-01

    Roč. 56, č. 6 (2013), s. 2323-2336. ISSN 0022-2623 R&D Projects: GA ČR(CZ) GAP303/12/1464 Institutional support: RVO:61388963 Keywords : steroids * synthesis of neurosteroid analogues * GABAA receptor * [3H]flunitrazepam binding * intact neurons in culture * 3D-QSAR analysis Subject RIV: FR - Pharmacology ; Medidal Chemistry Impact factor: 5.480, year: 2013

  13. Effect of pH conformation stability of pyrrolidine nucleotide analogues

    Czech Academy of Sciences Publication Activity Database

    Pohl, Radek; Poštová Slavětínská, Lenka; Rejman, Dominik

    Brno : Masaryk University, 2014 - (Novotný, J.; Foroutan -Nejad, C.; Marek, R.). C27 ISBN 978-80-86441-45-0. [NMR Valtice. Central European NMR Meeting /29./. 27.4.-30.4.2014, Valtice] R&D Projects: GA ČR GA13-24880S Institutional support: RVO:61388963 Keywords : conformation * pyrrolidine nucleotide analogues * five-membered ring * NMR Subject RIV: CC - Organic Chemistry

  14. New approaches to the synthesis of sildenafil analogues and their enzyme inhibitory activity

    Czech Academy of Sciences Publication Activity Database

    Mojzych, M.; Karczmarzyk, Z.; Wysocki, W.; Ceruso, M.; Supuran, C.T.; Kryštof, Vladimír; Urbanczyk-Lipkowska, Z.; Kalicki, P.

    2015-01-01

    Roč. 23, č. 7 (2015), s. 1421-1429. ISSN 0968-0896 R&D Projects: GA ČR GAP305/12/0783 Grant ostatní: GA MŠk(CZ) ED0007/01/01 Institutional support: RVO:61389030 Keywords : Sildenafil analogues * Pyrazolo[4,3-e][1,2,4] triazine * Sulfonamides Subject RIV: CE - Biochemistry Impact factor: 2.793, year: 2014

  15. Evaluation of a community-based participatory physical activity promotion project: effect on cardiovascular disease risk profiles of school employees

    Directory of Open Access Journals (Sweden)

    Kobza Cee E

    2010-06-01

    Full Text Available Abstract Background The efficacy of physical activity in improving cardiovascular disease (CVD risk profiles has been well established. However, the effectiveness of health promotion programs implemented at the community level remains controversial. This study evaluated a school-based work-site physical activity program. Methods Using a community-based participatory research model, a work-site wellness intervention was implemented in a rural public school system in Southwestern Oklahoma. During the 2005-2006 school year, 187 participants (mean age 45 years completed a pre intervention screening for CVD risk factors followed by a physical activity promotion program. Post intervention screening was conducted after a 6 month period. During both screening sessions, body composition, blood pressure, lipids, glucose and self-reported physical activity levels were assessed. The focus of the intervention was on promoting physical activity. Opportunities for in school physical activity were created by marking hallways, adding a treadmill in each school, and allowing teachers to use planning periods for physical activity. Results During the post intervention screening, compared to pre intervention levels, participants had lower total, low, and high density lipoprotein-cholesterol (t = 5.9, p Conclusions A successful participatory program was associated with improvements in several CVD risk factors among school employees. Limitations of this study such as seasonal variation in the outcome variables and lack of a control group limit our ability to draw solid conclusions about the effectiveness of the intervention.

  16. Pocos de Caldas Project

    International Nuclear Information System (INIS)

    The first annual report of the Pocos de Caldas Project describes the results of the feasibility study established to test the objectives of the work. Boreholes have been drilled at two sites, the Osamu Utsumi uranium mine and Morro do Ferro, to assess the feasibility of using them as natural analogues of radionuclide migration processes. Detailed geochemical analysis and hydrogeological studies are described. (author)

  17. Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update

    CERN Document Server

    Pickering, J

    2015-01-01

    This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and implementing it in a design have not changed. Analogue to digital and digital to analogue converters are crucial components in the continued drive to replace analogue circuitry with more controllable and less costly digital processing. This paper discusses the technologies available to perform in the likely measurement and control applications that arise within accelerators. It covers much of the terminology and 'specmanship' together with an application-oriented analysis of the realisable performance of the various types. Finally, some hints and warnings on system integration problems are given.

  18. THE USE OF THE PATENT ANALYSIS METHOD FOR FINDING ANALOGUES AND PROTOTYPES OF RECEIVED TECHNICAL SOLUTIONS

    Directory of Open Access Journals (Sweden)

    Irina Petrova

    2016-03-01

    Full Text Available The research deals with the issue of the patent analysis efficiency, which is a necessary stage of seaching analogues and prototypes to obtain technical solutions. The article presents the results of analyzing the present automation systems for finding necessary information in the patent databases and identifies their advantages and disadvantages. It gives a description of the “Intellect” system, which is an example of software systems for the conceptual design stage support. Materials and Methods The article presents some of the possible ways to organize the patents-analogues search process and specific features of searching analogues and prototypes for the generated parametric structure scheme of the technical solution, which is the result of the synthesis of a new information-measuring and control system element in the “Intellect” system. The description of the proposed search query forming method is given. The article gives the structure of the patent passport, which must be stored in a database to organize the process of searcing analogues and prototypes. There given a description of algorithms for automatic adding a patent to the database, recalculating the weights while adding a patent by experts, identifying the fact of using different physical and technical effects in a patent. Results The final part of the article contains an example of the results of testing the developed subsystem implementing the proposed method. According to the test results it is concluded that the selected software and algorithmic solutions are effective.

  19. Bivalent metal-based MIL-53 analogues: Synthesis, properties and application

    International Nuclear Information System (INIS)

    Trivalent metal-based MIL-53 (Al3+, Cr3+, Fe3+, In3+) compounds are interesting metal–organic frameworks (MOFs) with breathing effect and are promising gas sorption materials. Replacing bridging μ2-OH group by neutral ligands such as pyridine N-oxide and its derivatives (PNOs), the trivalent metal-based MIL-53 analogous structures could be extended to bivalent metal systems. The introduction of PNOs and bivalent metal elements endows the frameworks with new structural features and physical and chemical properties. This minireview summarizes the recent development of bivalent metal-based MIL-53 analogues (Mn2+, Co2+, Ni2+), typically, focusing on the synthetic strategies and potential applications based on our own works and literatures. We present the synthetic strategy to achieve structures evolution from single-ligand-walled to double-ligand-walled channel. Properties and application of these new materials in a wide range of potential areas are discussed including thermal stability, gas adsorption, magnetism and liquid-phase separation. Promising directions of this research field are also highlighted. - Graphical abstract: The recent development of bivalent metal-based MIL-53 analogues (Mn2+, Co2+, Ni2+) on their synthetic strategies, properties and potential applications was reviewed. - Highlights: • Structure features of bivalent metal-based MIL-53 analogues are illustrated. • Important properties and application are presented. • Host–guest interactions are main impetus for liquid-phase separation. • Promising directions of bivalent metal-based MIL-53 analogues are highlighted

  20. A study of Gamow-Teller mixing: Coupling to delta (1232) and isobaric analogue resonances

    Energy Technology Data Exchange (ETDEWEB)

    Lambert, M.H.

    1988-01-01

    The problem of missing Gamow-Teller strength is examined in two calculations. The mixing between nucleonic Gamow-Teller states and those containing a delta(1232) resonance in calcium-48, zirconium-90 and tin-132 is studied as a function of the excitation energy of a delta in the nucleus in a shell-model calculation. It is found that mixing is large enough at the experimentally observed nucleon-delta separation to warrant treating the nucleon and the delta resonance on similar footing in intermediate energy nuclear physics. In a second calculation, the coupled channels impulse approximation is used to examine the effect on the Gamow-Teller cross section of coupling to the isobaric analogue state. This is done for incident proton energies of 140 and 175 MeV on a calcium-48 target. Effects on the cross-section of the separation between the isobaric analogue and Gamow-Teller states are also studied. It is found that coupling to the isobaric analogue state has little effect on either the Gamow-Teller or the isobaric analogue cross section.