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1

Euclid slides  

E-Print Network [OSTI]

Euclid 325-265 BC. Author of The Elements. 13 books in all. Standard textbook for Geometry for about. 2000 years. Taught in Alexandria, Egypt. Euclid's...

Department of Mathematics

2

Running jobs on Euclid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Running jobs Running jobs Overview and Basic Description Euclid is a single node system with 48 processors. It supports both multiprocessing (MPI) and multithreading programming...

3

Getting Started on Euclid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Getting started Getting started Getting started Logging In Users can log into Euclid using the Secure Shell (SSH) protocol 2 with the following command: % ssh -l username euclid.nersc.gov When you successfully log in you will land in your $HOME directory. Euclid is a one node system. All jobs that run on Euclid, e.g. compiles, edits, user jobs, etc,. run on the same node. Sample Program Code: Parallel Hello World Although Euclid was not intended for production runs of MPI codes, it is possible to run small MPI codes on it. Open a new file called helloWorld.f90 with a text editor such as emacs or vi. Paste the contents of the below code into the file. program helloWorld implicit none include "mpif.h" integer :: myPE, numProcs, ierr call MPI_INIT(ierr) call MPI_COMM_RANK(MPI_COMM_WORLD, myPE, ierr)

4

Getting Started on Euclid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

compiles, edits, user jobs, etc,. run on the same node. Sample Program Code: Parallel Hello World Although Euclid was not intended for production runs of MPI codes, it is...

5

Running jobs on Euclid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Running jobs Running jobs Running jobs Overview and Basic Description Euclid is a single node system with 48 processors. It supports both multiprocessing (MPI) and multithreading programming models. Interactive Jobs All Euclid jobs are interactive. To launch an MPI job, type in this at the shell prompt: % mpirun -np numprocs executable_name where numprocs is the total number of MPI processes that will be executed. Interactive Usage Policy Due to the dynamic and unpredictable nature of visualization and data analysis, NERSC will attempt to provide equitable access to Euclid's resources through the enforcement of certain usage guidelines. The most crucial resources are the processor cores (48) and memory (512 GB). Processor Core Usage Policy No single interactive job should use more than 12 processor cores. A single

6

Euclid & SKA Synergies  

E-Print Network [OSTI]

Over the past few years two of the largest and highest fidelity experiments conceived have been approved for construction: Euclid is an ESA M-Class mission that will map three-quarters of the extra galactic sky with Hubble Space Telescope resolution optical and NIR imaging, and NIR spectroscopy, its scientific aims (amongst others) are to create a map of the dark Universe and to determine the nature of dark energy. The Square Kilometre Array (SKA) has similar scientific aims (and others) using radio wavelength observations. The two experiments are synergistic in several respects, both through the scientific objectives and through the control of systematic effects. SKA Phase-1 and Euclid will be commissioned on similar timescales offering an exciting opportunity to exploit synergies between these facilities.

Kitching, Thomas D; Brown, Michael L; Bull, Philip; McEwen, Jason D; Oguri, Masamune; Scaramella, Roberto; Takahashi, Keitaro; Wu, Kinwah; Yamauchi, Daisuke

2015-01-01T23:59:59.000Z

7

Using the ACML Math Library on Euclid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ACML Math Library Using the ACML Math Library The AMD ACML math library is available on Euclid. This library is described at the ACML Math Library. To compile and link with it,...

8

CURRENT WORK BROADWAY-EUCLID TRANSPORTATION IMPROVEMENTS PROJECT  

E-Print Network [OSTI]

& Xcel relocation work NB transit stop on Broadway closed MU path detour as shown 24/7 NB lane closures) Qwest & Xcel utility work in 16th/Euclid intersection (after "new" Euclid and temp SB LT at 18th

Vasilyev, Oleg V.

9

EDITED--LS-332-DWA_FEL_August16  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

32 32 August 2012 A Compact Soft X-ray Free-Electron Laser Facility based on a Dielectric Wakefield Accelerator C. Jing, P. Schoessow, A. Kanareykin, Euclid Techlabs LLC, Solon, OH 44139 J. G. Power, HEP Division, Argonne National Laboratory, Argonne, IL 60439 R. Lindberg, A. Zholents, APS, Argonne National Laboratory, Argonne, IL 60439 P. Piot, Northern Illinois University, Department of Physics, DeKalb, IL 60115 To be published as a Light Source Technical Notes The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357.

10

A Brief History of Algebra The Greeks: Euclid, Pythagora, Archimedes  

E-Print Network [OSTI]

A Brief History of Algebra · The Greeks: Euclid, Pythagora, Archimedes · Indian and arab- matics (nowadays the only approach used). Parallel postulate: Given a line and a point P of type: xn + yn = zn, Last Fermat's Theorem x2 - Ny2 = ±1, Pell's equation 4 #12;Indian and Arab

Fioresi, Rita

11

South Euclid, Ohio: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Euclid, Ohio: Energy Resources Euclid, Ohio: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.5231076°, -81.5184553° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.5231076,"lon":-81.5184553,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

12

Can dark energy viscosity be detected with the Euclid survey?  

Science Journals Connector (OSTI)

Recent work has demonstrated that it is important to constrain the dynamics of cosmological perturbations, in addition to the evolution of the background, if we want to distinguish among different models of the dark sector. Especially the anisotropic stress of the (possibly effective) dark energy fluid has been shown to be an important discriminator between modified gravity and dark energy models. In this paper we use approximate analytical solutions of the perturbation equations in the presence of viscosity to study how the anisotropic stress affects the weak lensing and galaxy power spectrum. We then forecast how sensitive the photometric and spectroscopic Euclid surveys will be to both the speed of sound and the viscosity of our effective dark energy fluid when using weak lensing tomography and the galaxy power spectrum. We find that Euclid alone can only constrain models with a very small speed of sound and viscosity, while it will need the help of other observables in order to give interesting constraints on models with a sound speed close to one. This conclusion is also supported by the expected Bayes factor between models.

Domenico Sapone; Elisabetta Majerotto; Martin Kunz; Bianca Garilli

2013-08-05T23:59:59.000Z

13

Can dark energy viscosity be detected with the Euclid survey?  

E-Print Network [OSTI]

Recent work has demonstrated that it is important to constrain the dynamics of cosmological perturbations, in addition to the evolution of the background, if we want to distinguish among different models of the dark sector. Especially the anisotropic stress of the (possibly effective) dark energy fluid has been shown to be an important discriminator between modified gravity and dark energy models. In this paper we use approximate analytical solutions of the perturbation equations in the presence of viscosity to study how the anisotropic stress affects the weak lensing and galaxy power spectrum. We then forecast how sensitive the photometric and spectroscopic Euclid surveys will be to both the speed of sound and the viscosity of our effective dark energy fluid when using weak lensing tomography and the galaxy power spectrum. We find that Euclid alone can only constrain models with very small speed of sound and viscosity, while it will need the help of other observables in order to give interesting constraints on models with a sound speed close to one. This conclusion is also supported by the expected Bayes factor between models.

Domenico Sapone; Elisabetta Majerotto; Martin Kunz; Bianca Garilli

2013-05-08T23:59:59.000Z

14

The State Energy Program Helps Promote that Bigger IS Better in Euclid,  

Broader source: Energy.gov (indexed) [DOE]

The State Energy Program Helps Promote that Bigger IS Better in The State Energy Program Helps Promote that Bigger IS Better in Euclid, Ohio The State Energy Program Helps Promote that Bigger IS Better in Euclid, Ohio July 25, 2012 - 11:38am Addthis Compare how Lincoln Electric's wind tower -- the largest capacity wind turbine in Ohio -- measures up to well-known structures from around the world. | Graphic courtesy of Lincoln Electric. Compare how Lincoln Electric's wind tower -- the largest capacity wind turbine in Ohio -- measures up to well-known structures from around the world. | Graphic courtesy of Lincoln Electric. Perry Luksin Communication Specialist, Department of Energy State Energy Program What are the key facts? Lincoln Electric's wind tower measures 443 feet tall and can generate 2.5 MW of electrical energy.

15

Extending the supernova Hubble diagram to z~1.5 with the Euclid space mission  

E-Print Network [OSTI]

We forecast dark energy constraints that could be obtained from a new large sample of Type Ia supernovae where those at high redshift are acquired with the Euclid space mission. We simulate a three-prong SN survey: a zsurveys are assumed to be conducted from the ground, while the high-z is a joint ground- and space-based survey. This latter survey, the "Dark Energy Supernova Infra-Red Experiment" (DESIRE), is designed to fit within 6 months of Euclid observing time, with a dedicated observing program. We simulate the SN events as they would be observed in rolling-search mode by the various instruments, and derive the quality of expected cosmological constraints. We account for known systematic uncertainties, in particular calibration uncertainties including their contribution through the training of the supernova model used to fit the supernovae li...

Astier, P; Brescia, M; Cappellaro, E; Carlberg, R G; Cavuoti, S; Della Valle, M; Gangler, E; Goobar, A; Guy, J; Hardin, D; Hook, I M; Kessler, R; Kim, A; Linder, E; Longo, G; Maguire, K; Mannucci, F; Mattila, S; Nichol, R; Pain, R; Regnault, N; Spiro, S; Sullivan, M; Tao, C; Turatto, M; Wang, X F; Wood-Vasey, W M

2014-01-01T23:59:59.000Z

16

Synergistic science with Euclid and SKA : the nature and history of Star Formation  

E-Print Network [OSTI]

We explored the impact of the synergy between the Euclid near-infrared photometric surveys and the SKA radio continuum surveys on the studies of the cosmic star formation. The Euclid satellite is expected to perform a Wide and Deep photometric surveys to an infrared limit of H ~ 24 and H ~ 26 respectively and a spectroscopy survey with a flux limit of $\\sim 3 \\times 10^{-16}$ erg cm$^{-2}$ s$^{-1}$ in the Halpha line. Combining the H band Euclid selected samples with the ground based ancillary data (fundamental for the SFR estimation) we will be able to detect the star forming galaxies down to SFRs of order of unit to z ~ 2 and down to SFR ~ 10 to z ~ 3, sampling the majority of the star forming galaxies up to z ~3 and beyond and placing definitive constraints on the star formation history of the universe at z<4-5 (is there a peak a z ~2 or a plateau at 1

Ciliegi, Paolo

2015-01-01T23:59:59.000Z

17

The Whole is Greater than the Sum of the Parts: Optimizing the Joint Science Return from LSST, Euclid and WFIRST  

E-Print Network [OSTI]

The focus of this report is on the opportunities enabled by the combination of LSST, Euclid and WFIRST, the optical surveys that will be an essential part of the next decade's astronomy. The sum of these surveys has the potential to be significantly greater than the contributions of the individual parts. As is detailed in this report, the combination of these surveys should give us multi-wavelength high-resolution images of galaxies and broadband data covering much of the stellar energy spectrum. These stellar and galactic data have the potential of yielding new insights into topics ranging from the formation history of the Milky Way to the mass of the neutrino. However, enabling the astronomy community to fully exploit this multi-instrument data set is a challenging technical task: for much of the science, we will need to combine the photometry across multiple wavelengths with varying spectral and spatial resolution. We identify some of the key science enabled by the combined surveys and the key technical ch...

Jain, B; Bean, R; Connolly, A; Dell'antonio, I; Frieman, J; Gawiser, E; Gehrels, N; Gladney, L; Heitmann, K; Helou, G; Hirata, C; Ho, S; Ivezi?, ; Jarvis, M; Kahn, S; Kalirai, J; Kim, A; Lupton, R; Mandelbaum, R; Marshall, P; Newman, J A; Perlmutter, S; Postman, M; Rhodes, J; Strauss, M A; Tyson, J A; Wood-Vasey, W M

2015-01-01T23:59:59.000Z

18

Euclid Hardware and Software Configuration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ACML (AMD's Math library) PETSc Development and Performance Tools PAPI Performance API IPM (Integrated Performance Monitoring) NERSC-Provided Applications Science domain...

19

 

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Related Links Related Links AWA Home Page AWA Activities AWA Facilities AWA Group Meetings AWA News AWA QR Codes AWA Safety Discussions AWA Safety & Procedure Manual WF Notes AGN Notes (Internal) US High Gradient Collaboration Meeting Other Related Links Security and Privacy Notice AWA-- Related Links 2008 Advanced Accelerator Concepts Workshop Argonne Accelerator Institute Illinois Accelerator Institute 2006 Advanced Accelerator Concepts Workshop American Physical Society -- Division of Physics of Beams Euclid Techlabs Joint Accelerator Conferences Website International Linear Collider (ILC) Northern Illinois Center for Accelerator and Detector Development (NICADD) Other Advanced Accelerator R&D Programs · Accelerator Test Facility at BNL · Center for Beam Physics at LBNL

20

Euclid, Ohio: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

81.5267873° 81.5267873° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.5931049,"lon":-81.5267873,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "kanareykin euclid techlabs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Euclid, NERSC's Sunfire Shared Memory Analytics System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High Throughput Job Carver seriallong queue, or Hopper Hight Throughput Queue Large Memory Batch MPP Code Carver Extra-large memory noderegxlmem queue Large Memory Interactive...

22

ATFNewsletter  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

P. Schoessow, A. Kanareykin, V. Yakimenko, A. Zholents & W. Gai High power terahertz radiation source based on electron beam wakefields, Rev. Sci. Instrum. 84, 022706 R....

23

WF-NOTE-238  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 6 March 21, 2011 Dielectric Wakefield Accelerator to Drive the Future FEL Light Source C. Jing 1,2 , J. Power 1 , and A. Zholents 3 1. High Energy Physics Division, ANL 2. Euclid Techlabs, LLC 3. Advanced Photon Source, ANL Abstract: X-ray free-electron lasers (FELs) are expensive instruments and a large part of the cost of the entire facility is driven by the accelerator. Using a high-energy gain dielectric wake-field accelerator (DWA) instead of the conventional accelerator may provide a significant cost saving and reduction of the facility size. In this article, we investigate using a collinear dielectric wakefield accelerator to provide a high repetition rate, high current, high energy beam to drive a future FEL x-ray light source. As an

24

2009 Update UCSF Planning Group GearyEuclid  

E-Print Network [OSTI]

Bridge San Francisco Bay Golden Gate Park Lincoln Park Presidio Lombard Broadway California Sutter Turk St Cesar Chavez evAdn24 evAht03 evAht52 M arket M ission Folsom H arrison King Berry Potrero Dolores Laurel 6th St Guerrero Phelps Williams Van Dyke SF City/County Line arreSorepinuJ Jennings Executive Park

Lim, Wendell

25

BNL | ATF Operations Weekly Summary  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Operations Weekly Summary Operations Weekly Summary Week Starts E-beam Status CO2 Status 2013/12/30 Up time: 0 days Down time: 5 days Activity: Maintenance & holiday week Up time: 0 days Down time: 5 days (setup) Activity: OPA work & holiday week 2013/12/23 Up time: 1 days Down time: 4 days (holiday week) Exp: Beam Studies Group: ATF Energy: 57.6 MeV Charge: 500 pC Up time: 0 days Down time: 5 days Activity: OPA work & holiday week 2013/12/16 Up time: Down time: Exp: AE-58, ERL BPM testing + beam studies Group: AE58, BNL (C-AD) / ATF Energy: 57.6 MeV Charge: 500 pC Up time: 0 days Down time: 5 days (setup) Activity: OPA work, EUVL test setup (AE59) and maintenance 2013/12/09 Up time: Down time: Exp: AE-52, Beam Manipulation by self wakefield Group: AE52, Euclid techlabs Energy: 57.6 MeV

26

La transmission des textes mathmatiques : l'exemple des lments d'Euclide Bernard VITRAC  

E-Print Network [OSTI]

'il a suscités dès l'Antiquité, mais surtout au Moyen-?ge (en latin, arabe, syriaque, persan, arménien, hébreu

Boyer, Edmond

27

Fast 704 MHz Ferroelectric Tuner for Superconducting Cavities  

SciTech Connect (OSTI)

The Omega-P SBIR project described in this Report has as its goal the development, test, and evaluation of a fast electrically-controlled L-band tuner for BNL Energy Recovery Linac (ERL) in the Electron Ion Collider (EIC) upgrade of the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). The tuner, that employs an electrically-controlled ferroelectric component, is to allow fast compensation to cavity resonance changes. In ERLs, there are several factors which significantly affect the amount of power required from the wall-plug to provide the RF-power level necessary for the operation. When beam loading is small, the power requirements are determined by (i) ohmic losses in cavity walls, (ii) fluctuations in amplitude and/or phase for beam currents, and (iii) microphonics. These factors typically require a substantial change in the coupling between the cavity and the feeding line, which results in an intentional broadening of the cavity bandwidth, which in turn demands a significant amount of additional RF power. If beam loading is not small, there is a variety of beam-drive phase instabilities to be managed, and microphonics will still remain an issue, so there remain requirements for additional power. Moreover ERL performance is sensitive to changes in beam arrival time, since any such change is equivalent to phase instability with its vigorous demands for additional power. In this Report, we describe the new modular coaxial tuner, with specifications suitable for the 704 MHz ERL application. The device would allow changing the RF-coupling during the cavity filling process in order to effect significant RF power savings, and also will provide rapid compensation for beam imbalance and allow for fast stabilization against phase fluctuations caused by microphonics, beam-driven instabilities, etc. The tuner is predicted to allow a reduction of about ten times in the required power from the RF source, as compared to a compensation system with narrower bandwidth. It is planned to build a 704 MHz version of the tuner, to check its underlying principles, and to make high-power tests at power densities aimed towards controlling 50 kW of average power. Steps towards this goal will be limited by, among other factors, losses in the actual ferroelectric elements in the ferroelectric assemblies. As the ferroelectric material loss tangent is reduced through efforts by the supplier Euclid TechLabs LLC, the concomitant power loss in its ferroelectric assemblies will drop, and the average power-handling capability of the Omega-P tuner will rise. It can thus be anticipated that the Phase II development project of the 704 MHz tuner will be iterative, but the pace and ultimate power-handling level of the tuner is difficult to predict at this early stage in Euclid's development program. Fortunately, since Omega-P's conceptual tuner is a simple module (nominally rated for 5 kW), so that the number of modules required in each tuner can be chosen, depending upon the cavity power level needed, plus the power for tuner losses.

Jay L. Hirshfield

2012-04-12T23:59:59.000Z

28

Final Report on "Development and Testing of Advanced Accelerator Structures and Technologies at 11.424 GHz"  

SciTech Connect (OSTI)

This is the final report on the research program ?Development and Testing of Advanced Accelerator Structures and Technologies at 11.424 GHz,? which was carried out by the Naval Research Laboratory (NRL) under Interagency Agreement DE?AI02?01ER41170 with the Department of Energy. The period covered by this report is 15 July 2010 ? 14 July 2013. The program included two principal tasks. Task 1 involved a study of the key physics issues related to the use of high gradient dielectric-loaded accelerating (DLA) structures in rf linear accelerators and was carried out in collaboration with Argonne National Laboratory (ANL) and Euclid Techlabs LLC. Task 2 involved a study of high power active microwave pulse compressors and was carried out in collaboration with Omega-P, Inc. and the Institute of Applied Physics of the Russian Academy of Sciences in Nizhny Novgorod. The studies under Task 1 were focused on rf-induced multipactor and breakdown in externally driven DLA structures at the 200-ns timescale. Suppression of multipactor and breakdown are essential to the practical application of dielectric structures in rf linear accelerators. The structures that were studied were developed by ANL and Euclid Techlabs and their performance was evaluated at high power in the X-band Magnicon Laboratory at NRL. Three structures were designed, fabricated, and tested, and the results analyzed in the first two years of the program: a clamped quartz traveling-wave (TW) structure, a externally copper-coated TW structure, and an externally copper-coated dielectric standing-wave (SW) structure. These structures showed that rf breakdown could be largely eliminated by eliminating dielectric joints in the structures, but that the multipactor loading was omnipresent. In the third year of the program, the focus of the program was on multipactor suppression using a strong applied axial magnetic field, as proposed by Chang et al. [C. Chang et al., J. Appl. Phys. 110, 063304 (2011).], and a successful experiment was carried out that demonstrated suppression of multipactor in the uniform-field region of a TW DLA structure. However, in accordance with theory, the multipactor was enhanced in regions of the structure with lower values of axial magnetic field. Under Task 2, there were two two-month experimental runs at NRL that were used to characterize the performance of high power two-channel dual-mode active microwave pulse compressor configurations that used electron-beam triggered switch cavities. The pulse compressors were designed and fabricated by Omega-P, Inc. and the Russian Institute of Applied Physics and tested in the Magnicon Laboratory at NRL. These pulse compressors made use of an electron beam discharge from a cylindrical knife-edged Mo cathode coated with a CVD diamond film that was driven by a ?100 kV, 100 ns high voltage pulse. The electron beam was used to change the resonant frequency of the switch cavities in order to create the output microwave pulse. The compressor channels included a TE01 input and output section and a TE02 energy storage cavity, followed by a switch assembly that controlled the coupling between the TE01 and TE02 modes. In the initial state, the switch cavity was in resonance, the reflection from the cavity was out of phase, and the mode conversion was only ~2-3%, allowing the energy storage cavity to fill. When the electron beam was discharged into the switch cavity, the cavity was shifted out of resonance, causing the phase of the reflection to change by ~?. As a result of the change in the reflection phase, the mode coupling in the conical taper was greatly increased, and could approach ~100%, permitting the energy storage cavity to empty in one cavity round trip time of the TE02 mode to produce a high power output pulse. The second experiment runs demonstrated a 190 MW, ~20 ns compressed pulse at 25.7 gain and ~50% efficiency, using a 7.4 MW, 1 ?s drive pulse from the magnicon. The success of this experiment suggests a path to future high gain active versions of the SLED 2 pulse compressor at SLAC.

Gold, Steven H. [Naval Research Laboratory

2013-10-13T23:59:59.000Z

29

PARKWAY HOTEL Clayton-Taylor  

E-Print Network [OSTI]

Blvd. TaylorAve. Duncan Ave. Forest Park Parkway Newstead EuclidAve. EuclidAve. McKinley Substation CSRB Substation 4444 Substation TowerGrove Duncan Ave. Forest Park Parkway Newstead Parkview Boyle Parkview PlaceLink Children's Place EuclidAve. Newstead Forest Park Parkway Mid-CampusSubstation Stix School William Solae 71

Grant, Gregory

30

An intertextual study of Euclides Da Cunha's Os serto?es, R.B. Cunninghame Graham's A Brazilian mystic, and Mario Vargas Llosa's La guerra del fin del mundo  

E-Print Network [OSTI]

obscure with (translated as Th f n ), and Hungarian Sandor Marai's ~I ~n~~n (1967). The two last works are cited with insufficient data in a footnote, and the first is not mentioned at all by Bernucci. Again, he failed to see the metatexts as part... scope of this work, we will confine the discussion of Felicio dos Santos, Marchal and Marai within the framework of the main discussion of Llosa's text. While there has been some recognition of Llosa's use of metatexts other than ~rt~, r...

Erickson, Sandra Sassetti Fernandes

1990-01-01T23:59:59.000Z

31

EA-1777: Finding of No Significant Impact | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

No Significant Impact EA-1777: Finding of No Significant Impact Lincoln Electric's Wind Energy Project in Euclid, OH DOE prepared an environmental assessment analyzing the...

32

ROCK R E TAINI NG W ALL OLD ROC K W ALL IN DIS R EPA IR  

E-Print Network [OSTI]

ATLAS CENTER BIKE BOOTH TELE- COMM EUCLID AVE. AUTOPARK UNIVERSITY CLUB HOUSE POWERENVIRONMENTAL DESIGN BASKETBALL/ VOLLEYBALL PRACTICE FACILITY REGENTDRIVE REGENT DRIVE MACKYDRIVE FOLSOMSTREET 17TH STREET 16

Lineberger, W. Carl

33

Research Gallery  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Research Gallery Research Gallery Inside the Museum Exhibitions Norris Bradbury Museum Lobby Defense Gallery Research Gallery History Gallery TechLab Virtual Exhibits invisible utility element Research Gallery Science serving society The Laboratory conducts leading-edge research in many areas of science and technology to help solve national problems related to energy, the environment, infrastructure, and health. Basic research conducted here enhances national defense and economic security. Exhibits you'll find in this gallery: Understanding Radiation LANSCE: Los Alamos Neutron Science Center Space Science Research Viewspace Environmental Monitoring and Research Nanotechnology: The Science of the Small Algae to Biofuels: Squeezing Power from Pond Scum Living with Wildfire: A Shared Community Experience

34

Berkeley's Longest Paths or, why I took so long to graduate1  

E-Print Network [OSTI]

neatly tucked into the East Bay hills right across from the Golden Gate Bridge. With its varied terrain the Bay and a bit of the Golden Gate Bridge. On The Rock, above it all (20 min.): This is my favorite at the North Gate (Hearst Ave. and Euclid Ave.) and walk north on Euclid about 8 blocks. Past Bayview Place you

Gordon, Geoffrey J.

35

Mathematics Competition  

E-Print Network [OSTI]

Canadian Mathematics Competition An activity of the Centre for Education in Mathematics Results Euclid Contest 2010 R´esultats Concours Euclide c 2010 Centre for Education in Mathematics and Computing #12;Competition Organization Organisation du Concours Centre for Education in Mathematics

Le Roy, Robert J.

36

What do we really know about dark energy?  

Science Journals Connector (OSTI)

...omega m plane. But future surveys like the Dark Energy Survey (DES) or Euclid (a satellite...the future from large galaxy surveys such as DES or Euclid, which...spectrum. Other tests of whether dark energy is truly a new component in...

2011-01-01T23:59:59.000Z

37

Notes  

Science Journals Connector (OSTI)

... is a collection of 4000 volumes and 6000 pamphlets, and includes many mathematical and astronomical publications of unusual interest. Among them may be mentioned an early edition of Euclid's ... lectures for the part of the session after Christmas.

1910-11-10T23:59:59.000Z

38

Motive Power. Steam Turbines. High Speed Navigation1  

Science Journals Connector (OSTI)

... ancient Egyptian civilisation that we find the first records of the early history of the steam-engine. In Alexandria, the home of Euclid, and possibly contemporary with Archimedes, Hero ... contrivances.

1900-03-01T23:59:59.000Z

39

The CENTRE for EDUCATION in MATHEMATICS and COMPUTING  

E-Print Network [OSTI]

Wednesday, April 11, 2012 (in North America and South America) Thursday, April 12, 2012 (outside of North America and South America) Solutions ©2012 University of Waterloo #12;2012 Euclid Contest Solutions Page 2

Le Roy, Robert J.

40

Congratulations on being accepted to SU's graduate program in Biology! As members of the Biology Graduate Student Organization, we would like to offer you some additional  

E-Print Network [OSTI]

://padsllc.wordpress.com/ - PADS LLC, townhomes in Fayetteville Neighborhoods: http://en.wikipedia.org/wiki/Westcott,_Syracuse ­ Westcott The Westcott St. area near Euclid and Clarendon is an 8 min walk to campus, features cheap

Segraves, Kari A.

Note: This page contains sample records for the topic "kanareykin euclid techlabs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Disentangling interacting dark energy cosmologies with the three-point correlation function  

Science Journals Connector (OSTI)

......Oscillation Spectroscopic Survey and Euclid. cosmology...cosmology: theory|dark energy|dark matter|large-scale...Oscillation Spectroscopic Survey (BOSS, Schlegel, White...2009), the WiggleZ Dark Energy Survey (Blake et-al. 2011b......

Michele Moresco; Federico Marulli; Marco Baldi; Lauro Moscardini; Andrea Cimatti

2014-10-01T23:59:59.000Z

42

Figures of merit for testing standard models: application to dark energy experiments in cosmology  

Science Journals Connector (OSTI)

......Kilo-Degree Survey (KIDS), Panoramic Survey Telescope Rapid Response System (Pan-STARRS),1 Dark Energy Survey (DES),2 Large Synoptic Survey Telescope (LSST),3 Joint Dark Energy Mission (JDEM)4 and Euclid.5......

A. Amara; T. D. Kitching

2011-05-21T23:59:59.000Z

43

A one-parameter formula for testing slow-roll dark energy: observational prospects  

Science Journals Connector (OSTI)

......Oscillation Spectroscopic Survey (BOSS), BigBOSS, Large Synoptic Survey Telescope, Euclid and Planck, will constrain dark energy (DE)'s equation of...website 11 ); Day 2010). Dark Energy Survey (DES), begun in late......

Zachary Slepian; J. Richard Gott; III; Joel Zinn

2014-01-01T23:59:59.000Z

44

3 April 2012 Ay 127 E.S. Phinney Cosmology and Galaxy Formation  

E-Print Network [OSTI]

uses the MTW metric sign convention, where space-like intervals have positive ds2 as God and Euclid intended. Serjeant, under the influence of some satanic particle physicists, uses the opposite sign for ds2

Phinney, E. Sterl

45

Metodi Matematici per Chimici Maria Grazia Marinari1  

E-Print Network [OSTI]

. a.C.), a Euclide (IV sec a.C.), alla scuola alessandrina (fino ai primi sec. d.C.) 2Ritenuti verit cosiddette Geometrie non Euclidee4 , da una parte F. Klein, nel celebre programma di Erlangen (1872), formul

Robbiano, Lorenzo

46

E-Print Network 3.0 - antigenicamente distintas em Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ao Sol varre areas iguais em... tempos iguais. 12;Geometria de Euclides (sec IV-III a.C.) Duas rectas distintas intersectam-se no m Source: Natrio, Jos - Departamento...

47

Increasing the transformer ratio at the Argonne wakefield accelerator  

Science Journals Connector (OSTI)

The transformer ratio is defined as the ratio of the maximum energy gain of the witness bunch to the maximum energy loss experienced by the drive bunch (or a bunch within a multidrive bunch train). This plays an important role in the collinear wakefield acceleration scheme. A high transformer ratio is desirable since it leads to a higher overall efficiency under similar conditions (e.g. the same beam loading, the same structure, etc.). One technique to enhance the transformer ratio beyond the ordinary limit of 2 is to use a ramped bunch train. The first experimental demonstration observed a transformer ratio only marginally above 2 due to the mismatch between the drive microbunch length and the frequency of the accelerating structure [C. Jing, A. Kanareykin, J. Power, M. Conde, Z. Yusof, P. Schoessow, and W. Gai, Phys. Rev. Lett. 98, 144801 (2007)]. Recently, we revisited this experiment with an optimized microbunch length using a UV laser stacking technique at the Argonne Wakefield Accelerator facility and measured a transformer ratio of 3.4. Measurements and data analysis from these experiments are presented in detail.

C. Jing, J. G. Power, M. Conde, W. Liu, Z. Yusof, A. Kanareykin, and W. Gai

2011-02-16T23:59:59.000Z

48

August 1995 revised March 1996  

E-Print Network [OSTI]

San Diego La Jolla, CA 92093-0112 dmeyer@euclid.ucsd.edu ABSTRACT A natural architecture for nanoscale particle quantum automaton. This model is naturally reformulated as a two component cellular automaton, the second of which, to multiple interacting particles, is the correct de nition of a quantum lattice gas

Meyer, David A.

49

August 1995 revised March 1996  

E-Print Network [OSTI]

/San Diego La Jolla, CA 92093­0112 dmeyer@euclid.ucsd.edu ABSTRACT A natural architecture for nanoscale particle quantum automaton. This model is naturally reformulated as a two component cellular automaton, the second of which, to multiple interacting particles, is the correct definition of a quantum lattice gas

Meyer, David A.

50

Baseline Rd. Colorado Ave.  

E-Print Network [OSTI]

Baseline Rd. Broadway Broadway Colorado Ave. Arapahoe Ave. Canyon Blvd. 28thSt. 9thSt. 6thSt. 13th Pearl St. Euclid FolsomSt. N Baseline Rd. Broadway Broadway Colorado Ave. Arapahoe Ave. Canyon Blvd. 28://www.banjobilly.com JUNE 12-13, 2009 JILA/CHEMISTRY & BIOCHEMISTRY, UNIVERSITY OF COLORADO, BOULDER A CELEBRATION OF 40

Lineberger, W. Carl

51

Book Reviews  

Science Journals Connector (OSTI)

......algebra and the book under review is a worthy addition...ten years or so. BOOK REVIEWS 99 The book has four...prime ideals, but the standard result that the nilradical...UFD if all its 100 BOOK REVIEWS invertible ideals are...of Euclid. In general plan, the volume consists......

D. Rees

1971-03-01T23:59:59.000Z

52

UK Visitor Center Directions Weekday Visits (Monday through Friday)  

E-Print Network [OSTI]

Maxwell Street. At the second light, make a right onto South Upper Street. Enter the parking garage a one-way street, West Maxwell Street. After crossing Broadway, take a right at the second light onto left onto Rose Street. Turn right at the fourth traffic light onto Avenue of Champions/Euclid Avenue

Hayes, Jane E.

53

Cherry Ave. Sixth St. Garage  

E-Print Network [OSTI]

Ave. PedestrianUnderpass Bike/PedestrianUnderpass James E Rogers Way. MountainAve. FremontAve. PTS Marriot Hotel Campus Health Res. Life El Portal Disability Resource Center USB AHS Medical Library UMC East Garage Harvill EuclidAve. Marshall Building Highland Ave. Garage Bio 5 E. Helen St. Bike/Pedestrian

Arizona, University of

54

Cryogenic focal plane flatness measurement with optical zone slope Jerry Edelstein1  

E-Print Network [OSTI]

Cryogenic focal plane flatness measurement with optical zone slope tracking Jerry Edelstein1 to determine the surface flatness of a cryogenic sensor array developed for the JDEM mission. Large focal such as JDEM, WFIRST, or EUCLID must operate at cryogenic temperatures while maintaining focal plane flatness

California at Berkeley, University of

55

Convenient Fitness Routes for the SU Community North Campus Loop  

E-Print Network [OSTI]

the Archbold-Flanagan entrance, take Sims Drive to Euclid Ave. to the Lancaster Ave. or Westcott St. intersections and back. Distances: 1.18 miles to Lancaster and back; 1.80 miles to Westcott St. and back. to Barry Park, loop Barry Park (using Meadowbrook Dr., Broad St., and Westcott St.) and then head back

Mather, Patrick T.

56

Re-formulation of combined system wave-function formalism  

E-Print Network [OSTI]

We introduce a formulation of combined systems in orthodox non-relativistic quantum mechanics, mathematically equivalent to the usual one. For context and larger issues, see http://euclid.unh.edu/~jjohnson/axiomatics.html and http://arxiv.org/quant-ph/0502124

Joseph F. Johnson

2006-04-02T23:59:59.000Z

57

Probing dark energy with the next generation X-ray surveys of galaxy clusters  

Science Journals Connector (OSTI)

......Papers Probing dark energy with the next generation X-ray surveys of galaxy clusters...optical [e.g. Dark Energy Survey (DES),3 EUCLID...X-ray cluster surveys for the class of...called early dark energy (EDE; Wetterich......

B. Sartoris; S. Borgani; P. Rosati; J. Weller

2012-07-01T23:59:59.000Z

58

Dark energy model selection with current and future data  

Science Journals Connector (OSTI)

......distribution for the dark energy equation-of-state...for a cosmic shear survey with the Euclid probe...primary probes of dark energy, which are weak...using the goal survey parameters, we obtain a dark energy Figure of Merit......

Ivan Debono

2014-01-01T23:59:59.000Z

59

Weak lensing predictions for coupled dark energy cosmologies at non-linear scales  

Science Journals Connector (OSTI)

......models, for forthcoming ground-based [such as Dark Energy Survey (DES)] and space-based (Euclid) weak...lensing (WL) surveys - both a ground-based survey similar to the Dark Energy Survey (DES)1 and a space-based survey, i.e......

Emma Beynon; Marco Baldi; David J. Bacon; Kazuya Koyama; Cristiano Sabiu

2012-06-01T23:59:59.000Z

60

Phenomenological models for unified dark matter with fast transition  

Science Journals Connector (OSTI)

......alternative to lambdaCDM itself or other forms of dark energy (DE) or modified gravity theories invoked to...against the new data that will become available from surveys such as Dark Energy Survey (DES), Planck and Euclid. It is also relevant......

Marco Bruni; Ruth Lazkoz; Alberto Rozas-Fernndez

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "kanareykin euclid techlabs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Cornell University, Office of Sponsored Programs  

E-Print Network [OSTI]

CONSTRAINING DARK ENERGY AND MODIFIED GRAVITY WITH EUCLID: RSA #1478527 70095 $ 5,000.00 BONNEY, RICHARD E CALS Lab of O - Programs SERC BUILDING THE FIELD OF PARTICIPATION IN SCIENTIFIC RESEARCH 68149 $ 22 of O - Administration NSF BIO PRELIMINARY PROPOSAL: GENOME-WIDE DYNAMICS OF NEUTRAL AND FITNESS

62

Olivier Pirotte AT-ECR-ME NTof 2005 06 27 Examples of cryogenic equipment  

E-Print Network [OSTI]

AT-ECR-ME NTof 2005 06 27 ATLAS Hall180 : BT Cryo Test Facility TCF200 + Pump Cryostat Precooler, OI in mechanical engineering Design & integration office (ACAD, Euclid, CATIA...) Manufacturing facilities to other groups/divisions (SC, PH) · Experiments : ASACUSA, GReC, CAST, COMPASS, CMS, ATLAS, COLDEX

McDonald, Kirk

63

Elementares Departamento  

E-Print Network [OSTI]

de Euclides (cerca de 300 a.C.). Apesar da Geometria Euclidiana ser ainda crucial em engenharia e ci perspectiva do matem#19; atico Klein, cada Geometria #19; e o estudo dum grupo de transforma#24; c~ oes que#12;cado natural #12;ca perdido. A de Klein tem in uenciado mais o desen- volvimento das geometrias

Cannas da Silva, Ana

64

Obesity, Energy Balance, and Cancer: New Opportunities for Prevention  

Science Journals Connector (OSTI)

...review-article Review Obesity, Energy Balance, and Cancer...Berger, Case Western Reserve University, 10900 Euclid...Center, Case Western Reserve University, Cleveland...considered in the context of energy balance and as potential...Today, 65% of the world's population lives...

Stephen D. Hursting; John DiGiovanni; Andrew J. Dannenberg; Maria Azrad; Derek LeRoith; Wendy Demark-Wahnefried; Madhuri Kakarala; Angela Brodie; and Nathan A. Berger

2012-11-01T23:59:59.000Z

65

SPARC Japan>> 20(2008)93()  

E-Print Network [OSTI]

1 SPARC Japan>> 20(2008)93() National Institute of Informatics 20(2008)93() RIMS 4 SPARC Japan 2008 SPARC JapanSPARC Japan UniBio Press J-STAGE Project Euclid SPARC Japan 3 (2000) ( 144 63 74 5 2 3 676 1 396 2 105 206 55 ISIJCRNCR 3,676 1,396 2,105 206

Hattori, Tetsuya

66

A Methodology for Measuring the Rate of Reaction of CO2 with Brine-Rock Mixtures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Methodology for Measuring the Rate of Reaction of CO Methodology for Measuring the Rate of Reaction of CO 2 with Brine-Rock Mixtures Nicholas B. Janda (nbj2@po.cwru.edu; 216-368-2648) Philip W. Morrison, Jr. (pwm5@po.cwru.edu; 216-368-4238) Department of Chemical Engineering Case Western Reserve University 10900 Euclid Avenue Cleveland, OH 44106-7217 Beverly Z. Saylor (bzs@po.cwru.edu; 216-368-3763) Gerald Matisoff (gxm4@po.cwru.edu; 216-368-3677) Department of Geological Sciences Case Western Reserve University 10900 Euclid Avenue Cleveland, OH 44106-7216 Introduction Storage of carbon dioxide in deep, porous, and permeable reservoir rocks is one of the most promising technologies for reducing emissions of greenhouse gases to the atmosphere. Although oil and gas reservoirs are a sensible first step for sequestration of carbon dioxide in geologic

67

Dark energy model selection with current and future data  

E-Print Network [OSTI]

The main goal of the next generation of weak lensing probes is to constrain cosmological parameters by measuring the mass distribution and geometry of the low redshift Universe and thus to test the concordance model of cosmology. A future all-sky tomographic cosmic shear survey with design properties similar to Euclid has the potential to provide the statistical accuracy required to distinguish between different dark energy models. In order to assess the model selection capability of such a probe, we consider the dark energy equation-of-state parameter $w_0$. We forecast the Bayes factor of future observations, in the light of current information from Planck} by computing the predictive posterior odds distribution. We find that Euclid is unlikely to overturn current model selection results, and that the future data are likely to be compatible with a cosmological constant model. This result holds for a wide range of priors.

Debono, Ivan

2014-01-01T23:59:59.000Z

68

BNL | ATF Beam Schedule  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Beam Schedule (pdf) Beam Schedule (pdf) Sunday Monday Tuesday Wednesday Thursday Friday Saturday 22 1/2 Holiday Holiday 28 January Holiday 4 5 Maintenance 11 12 Maintenance 18 19 Holiday AE52 - DWFA (Euclid), BL2 25 February AE52 - DWFA (Euclid), BL2 1 2 AE50 - PWFA in QNR (UCLA), BL2 8 9 AE50 - PWFA in QNR (UCLA), BL2 15 16 Holiday AE50 - PWFA in QNR (UCLA), BL2 22 March 1 2 AE53 - Nonlinear Compton (UCLA) 8 9 AE53 - Nonlinear Compton (UCLA) 15 16 AE53 - Nonlinear Compton (UCLA) 22 23 29 Sunday Monday Tuesday Wednesday Thursday Friday Saturday User operations (E-beam in use) Ions - Ion generation User operations (laser in use) PWFA - Plasma Wakefield Acceleration User operations (E-beam and laser in use)

69

Aquifer behavior with reinjection  

E-Print Network [OSTI]

AQUIFER BEHAVIOR WITH REINJECTION A Thesis By EUCLIDES JOSE BONET Submitted to the Graduate College of the Texas ARUM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, f967 Major Subject... Petroleum Engineering AQUIFER BEHAVIOR WITH REINJECTION A Thesis By E UC LI DES JOSE BONE T Approved as to style and content by: (Chairman of Committee) (Member) (Member) May, 1967 ACKNOWLEDGMENT Thanks are due to Petroleo Brasilerio S...

Bonet, Euclides Jose

1967-01-01T23:59:59.000Z

70

Geometrias Elementares (Notas para Geometria I)  

E-Print Network [OSTI]

pensamento geom#19;etrico desde o tempo de Euclides (cerca de 300 a.C.). Apesar da Geometria Euclidiana ser ii #12; Introdu#24;c~ao A Geometria 1 #19;e o estudo da forma. Na perspectiva do matem#19;atico Klein abstrac#24;c~ao exagerada onde o signi#12;cado natural #12;ca perdido. A de Klein tem in uenciado mais o

Cannas da Silva, Ana

71

PRECISION COSMOGRAPHY WITH STACKED VOIDS  

SciTech Connect (OSTI)

We present a purely geometrical method for probing the expansion history of the universe from the observation of the shape of stacked voids in spectroscopic redshift surveys. Our method is an Alcock-Paczynski (AP) test based on the average sphericity of voids posited on the local isotropy of the universe. It works by comparing the temporal extent of cosmic voids along the line of sight with their angular, spatial extent. We describe the algorithm that we use to detect and stack voids in redshift shells on the light cone and test it on mock light cones produced from N-body simulations. We establish a robust statistical model for estimating the average stretching of voids in redshift space and quantify the contamination by peculiar velocities. Finally, assuming that the void statistics that we derive from N-body simulations is preserved when considering galaxy surveys, we assess the capability of this approach to constrain dark energy parameters. We report this assessment in terms of the figure of merit (FoM) of the dark energy task force and in particular of the proposed Euclid mission which is particularly suited for this technique since it is a spectroscopic survey. The FoM due to stacked voids from the Euclid wide survey may double that of all other dark energy probes derived from Euclid data alone (combined with Planck priors). In particular, voids seem to outperform baryon acoustic oscillations by an order of magnitude. This result is consistent with simple estimates based on mode counting. The AP test based on stacked voids may be a significant addition to the portfolio of major dark energy probes and its potentialities must be studied in detail.

Lavaux, Guilhem [Department of Physics, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Wandelt, Benjamin D. [UPMC Univ Paris 06, UMR 7095, Institut d'Astrophysique de Paris, 98 bis, boulevard Arago, 75014 Paris (France)

2012-08-01T23:59:59.000Z

72

PETSc: External Software  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

External Software External Software Home Download Features Documentation Applications/Publications Miscellaneous External Software Developers Site PETSc interfaces to the following optional external software (installing packages) (manual pages): ADIFOR - automatic differentiation for the computation of sparse Jacobians. AMD - Approximate minimum degree orderings. AnaMod - a library of matrix analysis modules; part of the Salsa project. BLAS and LAPACK Chaco - a graph partitioning package. ESSL - IBM's math library for fast sparse direct LU factorization. Euclid - parallel ILU(k) developed by David Hysom, accessed through the Hypre interface. FFTW - Fastest Fourier Transform in the West, developed at MIT by Matteo Frigo and Steven G. Johnson. Hypre - the LLNL preconditioner library.

73

Questions d'examen oral Printemps 2008  

E-Print Network [OSTI]

Euclidienne dans Z. Algorithme d'Euclide et th´eor`eme de B´ezout. Th´eor`eme: L'anneau Z est principal. (4'un anneau. Fonction d'Euler. (6) Th´eor`eme Chinois. Th´eor`eme d'Euler. (7) Polyn^omes. Th´eor`eme: si^omes. Racines d'un polyn^ome dans F[x], F un corps. Th´eor`eme: Un polyn^ome de degr´e d > 0 dans F[x] a au plus

Audoux, Benjamin

74

Future cosmological sensitivity for hot dark matter axions  

E-Print Network [OSTI]

We study the potential of a future, large-volume photometric survey to constrain the axion mass $m_a$ in the hot dark matter limit. Future surveys such as Euclid will have significantly more constraining power than current observations for hot dark matter. Nonetheless, the lowest accessible axion masses are limited by the fact that axions lighter than $\\sim 0.15$ eV decouple before the QCD epoch, assumed here to occur at a temperature $T_{\\rm QCD} \\sim 170$ MeV; this leaves an axion population of such low density that its late-time cosmological impact is negligible. For larger axion masses, $m_a \\gtrsim 0.15$ eV, where axions remain in equilibrium until after the QCD phase transition, we find that a Euclid-like survey combined with Planck CMB data can detect $m_a$ at very high significance. Our conclusions are robust against assumptions about prior knowledge of the neutrino mass. Given that the proposed IAXO solar axion search is sensitive to $m_a\\lesssim 0.2$ eV, the axion mass range probed by cosmology is n...

Archidiacono, Maria; Hamann, Jan; Hannestad, Steen; Raffelt, Georg; Wong, Yvonne Y Y

2015-01-01T23:59:59.000Z

75

3D Weak Gravitational Lensing of the CMB and Galaxies  

E-Print Network [OSTI]

In this paper we present a power spectrum formalism that combines the full three-dimensional information from the galaxy ellipticity field, with information from the cosmic microwave background (CMB). We include in this approach galaxy cosmic shear and galaxy intrinsic alignments, CMB deflection, CMB temperature and CMB polarisation data; including the inter-datum power spectra between all quantities. We apply this to forecasting cosmological parameter errors for CMB and imaging surveys and show that the additional covariance between the CMB and ellipticity measurements can improve galaxy intrinsic alignment measurements by a factor of two, and dark energy equation of state measurements by thirty percent. We present predictions for Euclid-like, KiDS, ACTPoL, and CoRE-like experiments and show that the combination of cosmic shear and the CMB, from Euclid-like and CoRE-like experiments, can measure the sum of neutrino masses with an error of 0.02 eV, and the dark energy equation of state with an error on w0 of ...

Kitching, T D; Das, S

2014-01-01T23:59:59.000Z

76

Medical Facilities With Experience Evaluating CBD  

Broader source: Energy.gov (indexed) [DOE]

/25/11 /25/11 Medical Facilities With Experience Evaluating Chronic Beryllium Disease Cleveland Clinic Foundation Raid Dweik, M.D., FACP, F.C.C.P. Pulmonary and Critical Care Medicine 9500 Euclid Avenue Cleveland, OH 44195 Contact: Jessica Phone: 216-445-5763 East Tennessee Pulmonary Associates R. Hal Hughes, M.D. East Tennessee Pulmonary Associates 800 Oak Ridge Turnpike Oak Ridge, TN 37830-9657 Phone: 865-483-3594 Philip Harber, M.D. 7230 Medical Center Drive, Ste 300 West Hills, CA 91307 Contact: Samantha Phone: 310-433-5342 Harborview Medical Center University of Washington Jordan Firestone, M.D.; Victor VanHee, M.D.; Szerre Vedal, M.D.; David Bonauto, M.D.; or June Spector, M.D. Occupational & Environmental Medicine Program Box 359739

77

Secretary Chu to Visit Cleveland | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Cleveland Cleveland Secretary Chu to Visit Cleveland January 17, 2012 - 2:24pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu will travel to Cleveland, Ohio, tomorrow to deliver a speech at the City Club of Cleveland on the importance of strengthening U.S. competitiveness in the global clean energy race and how Ohio is helping to lead the way. Following the event, Secretary Chu will tour Case Western Reserve University's Research Laboratories and meet with community business leaders. Speech at the City Club of Cleveland WHAT: Energy Secretary Steven Chu to deliver speech at City Club of Cleveland WHEN: Wednesday, January 18 12:30 PM EST WHERE: City Club of Cleveland, Cleveland, Ohio 850 Euclid Ave. The City Club Building, 2nd Floor

78

Performance and Optimization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hyper-Threading Hyper-Threading Core Specialization Technology Documentation Cray XC30 Documentation Known issues News and Updates Cray XC30 Press Release Euclid - Retired 01/31/2013 Franklin - Retired 04/30/12 Data & File Systems Network Connections Queues and Scheduling Job Logs & Analytics Training & Tutorials Software Accounts & Allocations Policies Data Analytics & Visualization Data Management Policies Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting http://help.nersc.gov consult@nersc.gov 1-800-66-NERSC, option 3 or 510-486-8611 Home » For Users » Computational Systems » Retired Systems » Edison

79

Cray IO COE  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

IO COE IO COE Performance of MPIIO on DVS+GPFS Yushu Yao Collaboration with: Mike Aamodt, Katie Antypas, Tina Butler, Mark Cruciani, Jason Hick, David Knaak, Rei Lee, Rose Olson, Mike Welcome 1 Wednesday, July 25, 12 WHY 2 Wednesday, July 25, 12 Scratch 35GB/S LSI 7900 OSS OSS OSS OSS OSS OSS ... ... LSI 7900 LSI 7900 ... ... LSI 7900 LSI 7900 ... ... DDN DDN DDN DDN PROJECT DVS DDN DDN DDN DDN GSCRATCH Data Analysis Visualization ... ... PNSD PNSD PNSD CMP CMP CMP ... CMP CMP CMP ... ... ... ... Carver ... Euclid ... ... Reason 1. Users Love Global File Systems FAST MPIIO!!! 3 Wednesday, July 25, 12 0 3 6 9 12 Carver FilePerProc Hopper FilePerProc Carver MPIIO Hopper MPIIO 1.8 7 11 11 0.8 11 12 12 Read Write GB/Sec Performance using IOR (Jan 2012) 20 nodes with 4PE/node Reason 2. Well, DVS+MPIIO Was Super SLOW

80

Case Western University (Vestas) | Open Energy Information  

Open Energy Info (EERE)

University (Vestas) University (Vestas) Jump to: navigation, search Name Case Western University (Vestas) Facility Case Western University (Vestas) Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Case Western University Developer Case Western University Energy Purchaser Sopko & Sons - excess to First Energy Location Euclid OH Coordinates 41.60216607°, -81.49763346° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.60216607,"lon":-81.49763346,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "kanareykin euclid techlabs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Case Western University (Nordex) | Open Energy Information  

Open Energy Info (EERE)

University (Nordex) University (Nordex) Jump to: navigation, search Name Case Western University (Nordex) Facility Case Western University (Nordex) Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Case Western University Developer Case Western University Energy Purchaser Stamco Inc - excess to First Energy Location Euclid OH Coordinates 41.60213398°, -81.49688244° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.60213398,"lon":-81.49688244,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

82

Lincoln Electric | Open Energy Information  

Open Energy Info (EERE)

Lincoln Electric Lincoln Electric Facility Lincoln Electric Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Lincoln Electric Developer Lincoln Electric Energy Purchaser Lincoln Electric Location Euclid OH Coordinates 41.58468216°, -81.52579665° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.58468216,"lon":-81.52579665,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

83

Genepool Email Announcements Archive  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Email Announcements Archive Email Announcements Archive Genepool Email Announcements Archive Year: 2014 Select Year: 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 all Select List: all users mpp jgi hopper edison carver pdsf nug managers Retired Systems: bassi davinci franklin jacquard pvp euclid seaborg Search Announcements Body and Title Search Subject Date Author Re: [Edison-users] [usgc] Edison will be reserved for system debugging every other day starting from 10/10/2013 Thursday 16:00 PDT 2014-01-10 15:57:24 Zhengji Zhao [Jgi-users] Jenkins talk today at Noon (Dial-in for JGI participants) 2014-01-10 09:45:33 Douglas Jacobsen [Jgi-users] Please complete the NERSC 2013 User Survey 2014-01-09 17:48:50 Douglas Jacobsen

84

NERSC Announcements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Announcements Announcements Announcements Email Announcement Archive Year: 2014 Select Year: 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 all Select List: all users mpp jgi hopper edison carver pdsf nug managers Retired Systems: bassi davinci franklin jacquard pvp euclid seaborg Search Announcements Body and Title Search Subject Date Author Re: [Edison-users] [usgc] Edison will be reserved for system debugging every other day starting from 10/10/2013 Thursday 16:00 PDT 2014-01-10 15:57:24 Zhengji Zhao [Jgi-users] Jenkins talk today at Noon (Dial-in for JGI participants) 2014-01-10 09:45:33 Douglas Jacobsen [Jgi-users] Please complete the NERSC 2013 User Survey 2014-01-09 17:48:50 Douglas Jacobsen

85

ReliOn | Open Energy Information  

Open Energy Info (EERE)

ReliOn ReliOn Jump to: navigation, search Name ReliOn Address 15913 E. Euclid Avenue Place Spokane, WA Zip 99216 Sector Hydrogen Product Fuel cells for backup and grid-supplement power Year founded 1995 Number of employees 11-50 Phone number 509-228-6500 Website http://www.relion-inc.com Region Pacific Northwest Area References ReliOn[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. ReliOn is a company based in Spokane, Washington. References ↑ "ReliOn" Retrieved from "http://en.openei.org/w/index.php?title=ReliOn&oldid=616700" Categories: Companies Energy Generation Organizations Clean Energy Organizations Organizations Stubs What links here Related changes

86

Notice of Record of Decision and Floodplain Statement of Findings for the San Luis Rio Colorado Project (DOE/EIS  

Broader source: Energy.gov (indexed) [DOE]

4 Federal Register 4 Federal Register / Vol. 72, No. 197 / Friday, October 12, 2007 / Notices * Hawthorne, Nevada. Hawthorne Convention Center, 932 E. Street, November 13, 2007, from 4 to 7 p.m. * Caliente, Nevada. Caliente Youth Center, U.S. Highway 93, November 15, 2007, from 5:30 to 8 p.m. * Reno/Sparks, Nevada. Reno-Sparks Convention Center, 4590 S. Virginia Street, November 19, 2007, from 4 to 7 p.m. * Town of Amargosa Valley, Nevada. Longstreet Inn & Casino, Highway 373, November 26, 2007, from 4 to 7 p.m. * Goldfield, Nevada. Goldfield School Gymnasium, Hall & Euclid, November 27, 2007, from 4 to 7 p.m. * Lone Pine, California. Statham Hall, 138 N. Jackson Street, November 29, 2007, from 4 to 7 p.m. * Las Vegas, Nevada. Cashman Center, 850 Las Vegas Blvd., December

87

Edison Programming Environment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technology Documentation Technology Documentation Cray XC30 Documentation Known issues News and Updates Cray XC30 Press Release Euclid - Retired 01/31/2013 Franklin - Retired 04/30/12 Data & File Systems Network Connections Queues and Scheduling Job Logs & Analytics Training & Tutorials Software Accounts & Allocations Policies Data Analytics & Visualization Data Management Policies Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting http://help.nersc.gov consult@nersc.gov 1-800-66-NERSC, option 3 or 510-486-8611 Home » For Users » Computational Systems » Retired Systems » Edison

88

Development of virtual-labs based on complex Modelica models using VirtualLabBuilder  

Science Journals Connector (OSTI)

The feasibility of implementing virtual-labs based on complex Modelica models is demonstrated. To this end, the design and implementation of the following three virtual-labs is discussed: 1) a virtual-lab of a double-pipe heat exchanger, which is a useful tool for control education; 2) a virtual-lab describing the thermodynamic behaviour of the solar house, which is based on a complex Modelica model developed by other authors; 3) the virtual-lab of a drum-type washing machine, which is an industrial application useful as design aid. The graphical user interface has been implemented by using the VirtualLabBuilder library, which can be freely downloaded from http:/ /www.euclides.dia.uned.es.

Carla Martin-Villalba; Felix Martinez; Alfonso Urquia; Sebastian Dormido

2010-01-01T23:59:59.000Z

89

Improving resolution and depth of astronomical observations via modern mathematical methods for image analysis  

E-Print Network [OSTI]

In the past years modern mathematical methods for image analysis have led to a revolution in many fields, from computer vision to scientific imaging. However, some recently developed image processing techniques successfully exploited by other sectors have been rarely, if ever, experimented on astronomical observations. We present here tests of two classes of variational image enhancement techniques: "structure-texture decomposition" and "super-resolution" showing that they are effective in improving the quality of observations. Structure-texture decomposition allows to recover faint sources previously hidden by the background noise, effectively increasing the depth of available observations. Super-resolution yields an higher-resolution and a better sampled image out of a set of low resolution frames, thus mitigating problematics in data analysis arising from the difference in resolution/sampling between different instruments, as in the case of EUCLID VIS and NIR imagers.

Castellano, Marco; Fontana, Adriano; Merlin, Emiliano; Pilo, Stefano; Falcone, Maurizio

2015-01-01T23:59:59.000Z

90

Cosmology with the SKA -- overview  

E-Print Network [OSTI]

The new frontier of cosmology will be led by three-dimensional surveys of the large-scale structure of the Universe. Based on its all-sky surveys and redshift depth, the SKA is destined to revolutionize cosmology, in combination with future optical/ infrared surveys such as Euclid and LSST. Furthermore, we will not have to wait for the full deployment of the SKA in order to see transformational science. In the first phase of deployment (SKA1), all-sky HI intensity mapping surveys and all-sky continuum surveys are forecast to be at the forefront on the major questions of cosmology. We give a broad overview of the major contributions predicted for the SKA. The SKA will not only deliver precision cosmology -- it will also probe the foundations of the standard model and open the door to new discoveries on large-scale features of the Universe.

Maartens, Roy; Jarvis, Matt; Santos, Mario G

2015-01-01T23:59:59.000Z

91

Systematic errors in the measurement of neutrino masses due to baryonic feedback processes: Prospects for stage IV lensing surveys  

E-Print Network [OSTI]

We examine the importance of baryonic feedback effects on the matter power spectrum on small scales, and the implications for the precise measurement of neutrino masses through gravitational weak lensing. Planned large galaxy surveys such as the Large Synoptic Sky Telescope (LSST) and Euclid are expected to measure the sum of neutrino masses to extremely high precision, sufficient to detect non-zero neutrino masses even in the minimal mass normal hierarchy. We show that weak lensing of galaxies while being a very good probe of neutrino masses, is extremely sensitive to baryonic feedback processes. We use publicly available results from the Overwhelmingly Large Simulations (OWLS) project to investigate the effects of active galactic nuclei feedback, the nature of the stellar initial mass function, and gas cooling rates, on the measured weak lensing shear power spectrum. Using the Fisher matrix formalism and priors from CMB+BAO data, we show that when one does not account for feedback, the measured neutrino mas...

Natarajan, Aravind; Battaglia, Nicholas; Trac, Hy

2014-01-01T23:59:59.000Z

92

System modeling using the Parallel DEVS formalism and the Modelica language  

Science Journals Connector (OSTI)

The analysis and identification of the requirements needed to describe P-DEVS models using the Modelica language are discussed in this manuscript. A new free Modelica package, named DEVSLib, is presented. It facilitates the description of discrete-event models according to the Parallel DEVS formalism and provides components to interface with continuous-time models, which can be composed using other Modelica libraries. In addition, \\{DEVSLib\\} contains models implementing Quantized State System (QSS) integration methods. The model definition capabilities provided by \\{DEVSLib\\} are similar to the ones in the simulation environments specifically designed for supporting the DEVS formalism. The main additional advantage of \\{DEVSLib\\} is that it can be used together with other Modelica libraries in order to compose multi-domain and multi-formalism hybrid models. \\{DEVSLib\\} is included in the \\{DESLib\\} Modelica library, which is freely available for download at http://www.euclides.dia.uned.es.

Victorino Sanz; Alfonso Urquia; Franois E. Cellier; Sebastian Dormido

2010-01-01T23:59:59.000Z

93

Modeling of hybrid control systems using the \\{DEVSLib\\} Modelica library  

Science Journals Connector (OSTI)

\\{DEVSLib\\} is a free Modelica library, developed by the authors, that supports the Parallel DEVS formalism. The library is mainly designed to model discrete-event systems. It also includes interfaces to communicate the \\{DEVSLib\\} models with the rest of the Modelica libraries. Thus, the library can be used in the development of multi-domain and multi-formalism hybrid models using the object-oriented methodology supported by Modelica. This manuscript presents the hybrid system modeling capabilities included in DEVSLib. In particular, these functionalities are applied to the description of hybrid control systems. A case study of a supermarket refrigeration system, using the traditional control approach, is discussed. Three implementations of the plant and its controllers have been developed and are described. The system is simulated reproducing the day and night conditions, and the results from the three implementations are compared. \\{DEVSLib\\} is freely available for download at http://www.euclides.dia.uned.es.

Victorino Sanz; Alfonso Urquia; Franois E. Cellier; Sebastian Dormido

2012-01-01T23:59:59.000Z

94

Accounting for baryonic effects in cosmic shear tomography: Determining a minimal set of nuisance parameters using PCA  

E-Print Network [OSTI]

Systematic uncertainties that have been subdominant in past large-scale structure (LSS) surveys are likely to exceed statistical uncertainties of current and future LSS data sets, potentially limiting the extraction of cosmological information. Here we present a general framework (PCA marginalization) to consistently incorporate systematic effects into a likelihood analysis. This technique naturally accounts for degeneracies between nuisance parameters and can substantially reduce the dimension of the parameter space that needs to be sampled. As a practical application, we apply PCA marginalization to account for baryonic physics as an uncertainty in cosmic shear tomography. Specifically, we use CosmoLike to run simulated likelihood analyses on three independent sets of numerical simulations, each covering a wide range of baryonic scenarios differing in cooling, star formation, and feedback mechanisms. We simulate a Stage III (Dark Energy Survey) and Stage IV (Large Synoptic Survey Telescope/Euclid) survey an...

Eifler, Tim; Dodelson, Scott; Zentner, Andrew; Hearin, Andrew; Gnedin, Nickolay

2014-01-01T23:59:59.000Z

95

Dark matter interacts with variable vacuum energy  

E-Print Network [OSTI]

We investigate a spatially flat Friedmann-Robertson-Walker (FRW) scenario with two interacting components, dark matter and variable vacuum energy (VVE) densities, plus two decoupled components, one is a baryon term while the other behaves as a radiation component. We consider a linear interaction in the derivative dark component density. We apply the $\\chi^2$ method to the observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era for the model. It turns out that our model fulfills the severe bound of $\\Omega_{x}(z\\simeq 1100)survey, the future constraints achievable by Euclid and CMBPol experiments, reported for the behavior of the dark energy at early times, and fulfills the stringent bound $\\Omega_{x}(z\\simeq 10^{10})<0.04$ at $2\\sigma$ level in the big-bang nucleosynthesis epoch. We a...

G, Ivn E Snchez

2014-01-01T23:59:59.000Z

96

Late-time cosmology with 21cm intensity mapping experiments  

E-Print Network [OSTI]

We present a framework for forecasting cosmological constraints from future neutral hydrogen intensity mapping experiments at low to intermediate redshifts. In the process, we establish a simple way of comparing such surveys with optical galaxy redshift surveys. We explore a wide range of experimental configurations and assess how well a number of cosmological observables (the expansion rate, growth rate, and angular diameter distance) and parameters (the densities of dark energy and dark matter, spatial curvature, the dark energy equation of state, etc.) will be measured by an extensive roster of upcoming experiments. A number of potential contaminants and systematic effects are also studied in detail. The overall picture is encouraging - Phase I of the SKA should be able to constrain the dark energy equation of state about as well as a DETF Stage IV galaxy redshift survey like Euclid or LSST, in roughly the same timeframe.

Bull, Philip; Patel, Prina; Santos, Mario G

2014-01-01T23:59:59.000Z

97

Constraining warm dark matter with cosmic shear power spectra  

SciTech Connect (OSTI)

We investigate potential constraints from cosmic shear on the dark matter particle mass, assuming all dark matter is made up of light thermal relic particles. Given the theoretical uncertainties involved in making cosmological predictions in such warm dark matter scenarios we use analytical fits to linear warm dark matter power spectra and compare (i) the halo model using a mass function evaluated from these linear power spectra and (ii) an analytical fit to the non-linear evolution of the linear power spectra. We optimistically ignore the competing effect of baryons for this work. We find approach (ii) to be conservative compared to approach (i). We evaluate cosmological constraints using these methods, marginalising over four other cosmological parameters. Using the more conservative method we find that a Euclid-like weak lensing survey together with constraints from the Planck cosmic microwave background mission primary anisotropies could achieve a lower limit on the particle mass of 2.5 keV.

Markovic, Katarina; Weller, Jochen [University Observatory Munich, Ludwig-Maximilian University, Scheinerstr. 1, 81679 Munich (Germany); Bridle, Sarah [Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom); Slosar, Ane, E-mail: markovic@usm.lmu.de, E-mail: sarah.bridle@ucl.ac.uk, E-mail: anze@bnl.gov, E-mail: jochen.weller@usm.lmu.de [Brookhaven National Laboratory, Building 510A, Upton, NY 11973-5000 (United States)

2011-01-01T23:59:59.000Z

98

THE WEIGHT OF EMPTINESS: THE GRAVITATIONAL LENSING SIGNAL OF STACKED VOIDS  

SciTech Connect (OSTI)

The upcoming new generation of spectroscopic galaxy redshift surveys will provide large samples of cosmic voids, large distinct, underdense structures in the universe. Combining these with future galaxy imaging surveys, we study the prospects of probing the underlying matter distribution in and around cosmic voids via the weak gravitational lensing effects of stacked voids, utilizing both shear and magnification information. The statistical precision is greatly improved by stacking a large number of voids along different lines of sight, even when taking into account the impact of inherent miscentering and projection effects. We show that Dark Energy Task Force Stage IV surveys, such as the Euclid satellite and the Large Synoptic Survey Telescope, should be able to detect the void lensing signal with sufficient precision from stacking abundant medium-sized voids, thus providing direct constraints on the matter density profile of voids independent of assumptions on galaxy bias.

Krause, Elisabeth; Dore, Olivier [Department of Astrophysics, Caltech, MC 249-17, Pasadena, CA 91125 (United States); Chang, Tzu-Ching; Umetsu, Keiichi [IAA, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan (China)

2013-01-10T23:59:59.000Z

99

Cluster probes of dark energy clustering  

Science Journals Connector (OSTI)

Cluster abundances are oddly insensitive to canonical early dark energy. Early dark energy with sound speed equal to the speed of light cannot be distinguished from a quintessence model with the equivalent expansion history for zdark energy density, despite the different early growth rate. However, cold early dark energy, with a sound speed much smaller than the speed of light, can give a detectable signature. Combining cluster abundances with cosmic microwave background (CMB) power spectra can determine the early dark energy fraction to 0.3% and distinguish a true sound speed of 0.1 from 1 at 99% confidence. We project constraints on early dark energy from the Euclid cluster survey, as well as the Dark Energy Survey, using both current and projected Planck CMB data, and assess the impact of cluster mass systematics. We also quantify the importance of dark energy perturbations, and the role of sound speed during a crossing of w=-1.

Stephen A. Appleby; Eric V. Linder; Jochen Weller

2013-08-29T23:59:59.000Z

100

Transferring Data  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Transferring Data Transferring Data to and from NERSC Yushu Yao 1 Tuesday, March 8, 2011 Overview 2 * Structure of NERSC Systems and Disks * Data Transfer Nodes * Transfer Data from/to NERSC - scp/sftp - bbcp - GridFTP * Sharing Data Within NERSC Tuesday, March 8, 2011 Systems and Disks 3 System Hopper Franklin Carver Euclid Data Transfer Node PDSF Global Home ($HOME) Global Scratch ($GSCRATCH) Project Directory Local Non-shared Scratch Data transfer nodes can access most of the disks, suggested for transferring data in/out NERSC Tuesday, March 8, 2011 Data Transfer Nodes * Two Servers Available Now: - dtn01.nersc.gov and dtn02.nersc.gov - Accessible by all NERSC users * Designed to Transfer Data: - High speed connection to HPSS and NGF (Global Home, Project, and Global Scratch) - High speed ethernet to wide area network

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101

Neutrino halos in clusters of galaxies and their weak lensing signature  

SciTech Connect (OSTI)

We study whether non-linear gravitational effects of relic neutrinos on the development of clustering and large-scale structure may be observable by weak gravitational lensing. We compute the density profile of relic massive neutrinos in a spherical model of a cluster of galaxies, for several neutrino mass schemes and cluster masses. Relic neutrinos add a small perturbation to the mass profile, making it more extended in the outer parts. In principle, this non-linear neutrino perturbation is detectable in an all-sky weak lensing survey such as EUCLID by averaging the shear profile of a large fraction of the visible massive clusters in the universe, or from its signature in the general weak lensing power spectrum or its cross-spectrum with galaxies. However, correctly modeling the distribution of mass in baryons and cold dark matter and suppressing any systematic errors to the accuracy required for detecting this neutrino perturbation is severely challenging.

Villaescusa-Navarro, Francisco; Pea-Garay, Carlos [IFIC, Universidad de Valencia-CSIC, E-46071, Valencia (Spain); Miralda-Escud, Jordi [Instituci Catalana de Recerca i Estudis Avanats, Passeig Llus Companys, 23, 08010-Barcelona (Spain); Quilis, Vicent, E-mail: villa@ific.uv.es, E-mail: miralda@icc.ub.es, E-mail: penya@ific.uv.es, E-mail: vicent.quilis@uv.es [Departamento de Astronomia y Astrofsica, Universidad de Valencia, C/ Dr. Moliner, 50, E-46100, Burjassot, Valencia (Spain)

2011-06-01T23:59:59.000Z

102

Measuring the Integrated Sachs-Wolfe Effect  

E-Print Network [OSTI]

One of the main challenges of modern cosmology is to understand the nature of dark energy. The Integrated Sachs-Wolfe (ISW) effect is sensitive to dark energy and presents an independent signature of dark energy in the absence of modified gravity and curvature. The ISW effect occurs on large scales, where cosmic variance is high and where there are large amounts of missing data in the CMB and large scale structure maps due to Galactic confusion. Moreover, existing methods in the literature often make strong assumptions about the statistics of the underlying fields or estimators. Together these effects can severely limit signal extraction. We review literature on the ISW effect, comparing statistical subtleties between existing methods, and identifying several limitations. We propose a novel method to detect and measure the ISW signal. This method assumes only that the primordial CMB field is Gaussian. It is based on a sparse inpainting method to reconstruct missing data and uses a bootstrap technique to avoid assumptions about the statistics of the estimator. It is a complete method, using three complementary statistical methods. We apply our method to Euclid-like simulations and show we can expect a \\sim 7\\sigma model-independent detection of the ISW signal with WMAP7-like data, even with missing data. Other tests return \\sim 4.7\\sigma detection levels for a Euclid-like survey, with levels independent from whether the galaxy field is normally or lognormally distributed. We apply our method to the 2 Micron All Sky Survey (2MASS) and WMAP7 CMB data and find detections in the 1.1 - 2.0\\sigma range, as expected from simulations. As a by-product, we reconstruct the full-sky temperature ISW field due to 2MASS data. We have presented a novel technique, based on sparse inpainting and bootstrapping, which accurately detects and reconstructs the ISW effect.

F. -X. Dupe; A. Rassat; J. -L. Starck; M. J. Fadili

2011-06-16T23:59:59.000Z

103

Hybrid system modeling using the \\{SIMANLib\\} and \\{ARENALib\\} Modelica libraries  

Science Journals Connector (OSTI)

Abstract The \\{ARENALib\\} and \\{SIMANLib\\} Modelica libraries replicate the basic functionality of the Arena simulation environment and the SIMAN language. These libraries facilitate describing discrete-event models using the Arena modeling methodology. \\{ARENALib\\} and \\{SIMANLib\\} models can be combined with other Modelica models in order to describe complex hybrid systems (i.e., combined continuous-time and discrete-event systems). The implementation and design of \\{SIMANLib\\} and \\{ARENALib\\} is discussed. The \\{ARENALib\\} components have been built in a modular fashion using SIMANLib. The \\{SIMANLib\\} components have been described as Parallel DEVS models and implemented using DEVSLib, a Modelica library previously developed by the authors to support the Parallel DEVS formalism. The use of Parallel DEVS as underlying mathematical formalism has facilitated the development and maintenance of SIMANLib. The modeling of two hybrid systems is discussed to illustrate the features and use of \\{SIMANLib\\} and ARENALib: firstly, a soaking-pit furnace; secondly, the malaria spread and an emergency hospital. DEVSLib, \\{SIMANLib\\} and \\{ARENALib\\} can be freely downloaded from http://www.euclides.dia.uned.es/.

Victorino Sanz; Alfonso Urquia; Franois E. Cellier; Sebastian Dormido

2013-01-01T23:59:59.000Z

104

Beyond Archimedean Space-Time Structure  

SciTech Connect (OSTI)

It took two millennia after Euclid and until in the early 1880s, when we went beyond the ancient axiom of parallels, and inaugurated geometries of curved spaces. In less than one more century, General Relativity followed. At present, physical thinking is still beheld by the yet deeper and equally ancient Archimedean assumption. In view of that, it is argued with some rather easily accessible mathematical support that Theoretical Physics may at last venture into the non-Archimedean realms. In this introductory paper we stress two fundamental consequences of the non-Archimedean approach to Theoretical Physics: one of them for quantum theory and another for relativity theory. From the non-Archimedean viewpoint, the assumption of the existence of minimal quanta of light (of the fixed frequency) is an artifact of the present Archimedean mathematical basis of quantum mechanics. In the same way the assumption of the existence of the maximal velocity, the velocity of light, is a feature of the real space-time structure which is fundamentally Archimedean. Both these assumptions are not justified in corresponding non-Archimedean models.

Rosinger, Elemer E. [Department of Mathematics and Applied Mathematics, University of Pretoria, Pretoria, 0002 (South Africa); Khrennikov, Andrei [International Center for Mathematical Modeling, in Physics and Cognitive Sciences, Linnaeus University, S-35195, Vaexjoe (Sweden)

2011-03-28T23:59:59.000Z

105

On geometry influence on the behavior of a quantum mechanical scalar particle with intrinsic structure in external magnetic and electric fields  

E-Print Network [OSTI]

Relativistic theory of the Cox's scalar not point-like particle with intrinsic structure is developed on the background of arbitrary curved space-time. It is shown that in the most general form, the extended Proca-like tensor first order system of equations contains non minimal interaction terms through electromagnetic tensor F_{\\alpha \\beta} and Ricci tensor R_{\\alpha \\beta}. In relativistic Cox's theory, the limiting procedure to non-relativistic approximation is performed in a special class of curved space-time models. This theory is specified in simple geometrical backgrounds: Euclid's, Lobachevsky's, and Rie\\-mann's. Wave equation for the Cox's particle is solved exactly in presence of external uniform magnetic and electric fields in the case of Minkowski space. Non-trivial additional structure of the particle modifies the frequency of a quantum oscillator arising effectively in presence if external magnetic field. Extension of these problems to the case of the hyperbolic Lobachevsky space is examined. In presence of the magnetic field, the quantum problem in radial variable has been solved exactly; the quantum motion in z-direction is described by 1-dimensional Schr\\"{o}dinger-like equation in an effective potential which turns out to be too difficult for analytical treatment. In the presence of electric field, the situation is similar. The same analysis has been performed for spherical Riemann space model.

O. V. Veko; K. V. Kazmerchuk; E. M. Ovsiyuk; V. V. Kisel; V. M. Red'kov

2014-11-07T23:59:59.000Z

106

Remarks on an attempted axiomatisation of Quantum Mechanics, due to Lucien Hardy, and Ten Theses on Hilbert's Sixth Problem and Quantum Measurement  

E-Print Network [OSTI]

From the standpoint of Hilbert's Sixth Problem, which is the axiomatisation of Physics, the famous paper of Lucien Hardy's, Quantum Theory from Five Reasonable Axioms, is not relevant. The present paper argues that Hardy does not give a physical definition of `limit', and if we assume the usual mathematical definition of limit of a sequence, he fails to define a sequence in physical terms to which the usual definition is applicable. We argue that one should not, in fact, try to define probability in terms of the usual notion of limit of a sequence of results of a measurement because of seemingly insurmountable difficulties in axiomatising the notion of function or sequence in this context. Von Plato's and the authour's work (see http:arxiv.org/abs/quant-ph/0502124 and euclid.unh.edu/~jjohnson/axiomatics.html for larger context and further references) on the definition of physical probability needs to be used in this context. We conclude with ten theses on quantum measurement, from the standpoint of the Hilbert problem.

Joseph F. Johnson

2006-06-15T23:59:59.000Z

107

Systematic errors in the measurement of neutrino masses due to baryonic feedback processes: Prospects for stage IV lensing surveys  

E-Print Network [OSTI]

We examine the importance of baryonic feedback effects on the matter power spectrum on small scales, and the implications for the precise measurement of neutrino masses through gravitational weak lensing. Planned large galaxy surveys such as the Large Synoptic Sky Telescope (LSST) and Euclid are expected to measure the sum of neutrino masses to extremely high precision, sufficient to detect non-zero neutrino masses even in the minimal mass normal hierarchy. We show that weak lensing of galaxies while being a very good probe of neutrino masses, is extremely sensitive to baryonic feedback processes. We use publicly available results from the Overwhelmingly Large Simulations (OWLS) project to investigate the effects of active galactic nuclei feedback, the nature of the stellar initial mass function, and gas cooling rates, on the measured weak lensing shear power spectrum. Using the Fisher matrix formalism and priors from CMB+BAO data, we show that when one does not account for feedback, the measured neutrino mass may be substantially larger or smaller than the true mass, depending on the dominant feedback mechanism, with the mass error |\\Delta m_nu| often exceeding the mass m_nu itself. We also consider gravitational lensing of the cosmic microwave background (CMB) and show that it is not sensitive to baryonic feedback on scales l power spectrum can be measured to similar accuracy.

Aravind Natarajan; Andrew R. Zentner; Nicholas Battaglia; Hy Trac

2014-09-04T23:59:59.000Z

108

Dark matter interacts with variable vacuum energy  

E-Print Network [OSTI]

We investigate a spatially flat Friedmann-Robertson-Walker (FRW) scenario with two interacting components, dark matter and variable vacuum energy (VVE) densities, plus two decoupled components, one is a baryon term while the other behaves as a radiation component. We consider a linear interaction in the derivative dark component density. We apply the $\\chi^2$ method to the observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era for the model. It turns out that our model fulfills the severe bound of $\\Omega_{x}(z\\simeq 1100)measurements from Planck survey, the future constraints achievable by Euclid and CMBPol experiments, reported for the behavior of the dark energy at early times, and fulfills the stringent bound $\\Omega_{x}(z\\simeq 10^{10})<0.04$ at $2\\sigma$ level in the big-bang nucleosynthesis epoch. We also examine the cosmic age problem at high redshift associated with the old quasar APM 08279+5255 and estimate the age of the universe today.

Ivn E. Snchez G

2014-05-06T23:59:59.000Z

109

Development of virtual-labs for education in chemical process control using Modelica  

Science Journals Connector (OSTI)

Virtual-labs are useful tools for education in chemical process control. A novel approach to virtual-lab implementation using the Modelica language is presented. This approach has the following advantages. Firstly, existing Modelica models can be employed to develop virtual-labs. If new models need to be programmed, the use of Modelica reduces considerably the modeling effort. Secondly, as the complete virtual-lab is described in Modelica, virtual-lab developers dont need to use programming languages. Finally, virtual-labs can be easily distributed to the users, who dont need to install any additional software. The proposed approach is based on the application of a methodology for interactive model development, and two software tools: a free Modelica library, named Interactive (http://www.euclides.dia.uned.es/Interactive), and the Dymola modeling environment. Several virtual-labs have been implemented and successfully applied to education in chemical process control. The development of a virtual-lab based on a complex model of a double-pipe heat exchanger is discussed.

Carla Martin-Villalba; Alfonso Urquia; Sebastian Dormido

2012-01-01T23:59:59.000Z

110

A NOVEL APPROACH IN THE WEAKLY INTERACTING MASSIVE PARTICLE QUEST: CROSS-CORRELATION OF GAMMA-RAY ANISOTROPIES AND COSMIC SHEAR  

SciTech Connect (OSTI)

Both cosmic shear and cosmological gamma-ray emission stem from the presence of dark matter (DM) in the universe: DM structures are responsible for the bending of light in the weak-lensing regime and those same objects can emit gamma rays, either because they host astrophysical sources (active galactic nuclei or star-forming galaxies) or directly by DM annihilations (or decays, depending on the properties of the DM particle). Such gamma rays should therefore exhibit strong correlation with the cosmic shear signal. In this Letter, we compute the cross-correlation angular power spectrum of cosmic shear and gamma rays produced by the annihilation/decay of weakly interacting massive particle DM, as well as by astrophysical sources. We show that this observable provides novel information on the composition of the extragalactic gamma-ray background (EGB), since the amplitude and shape of the cross-correlation signal strongly depend on which class of sources is responsible for the gamma-ray emission. If the DM contribution to the EGB is significant (at least in a definite energy range), although compatible with current observational bounds, its strong correlation with the cosmic shear makes such signal potentially detectable by combining Fermi Large Area Telescope data with forthcoming galaxy surveys, like the Dark Energy Survey and Euclid. At the same time, the same signal would demonstrate that the weak-lensing observables are indeed due to particle DM matter and not to possible modifications of general relativity.

Camera, Stefano [CENTRA, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Lisboa (Portugal); Fornasa, Mattia [School of Physics and Astronomy, University of Nottingham, Nottingham (United Kingdom); Fornengo, Nicolao; Regis, Marco [Dipartimento di Fisica, Universita di Torino and INFN, Torino (Italy)

2013-07-01T23:59:59.000Z

111

J-PAS: The Javalambre-Physics of the Accelerated Universe Astrophysical Survey  

E-Print Network [OSTI]

The Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) is a narrow band, very wide field Cosmological Survey to be carried out from the Javalambre Observatory in Spain with a purpose-built, dedicated 2.5m telescope and a 4.7 sq.deg. camera with 1.2Gpix. Starting in late 2015, J-PAS will observe 8500sq.deg. of Northern Sky and measure $0.003(1+z)$ photo-z for $9\\times10^7$ LRG and ELG galaxies plus several million QSOs, sampling an effective volume of $\\sim 14$ Gpc$^3$ up to $z=1.3$ and becoming the first radial BAO experiment to reach Stage IV. J-PAS will detect $7\\times 10^5$ galaxy clusters and groups, setting constrains on Dark Energy which rival those obtained from its BAO measurements. Thanks to the superb characteristics of the site (seeing ~0.7 arcsec), J-PAS is expected to obtain a deep, sub-arcsec image of the Northern sky, which combined with its unique photo-z precision will produce one of the most powerful cosmological lensing surveys before the arrival of Euclid. J-PAS un...

Benitez, N; Moles, M; Sodre, L; Cenarro, J; Marin-Franch, A; Taylor, K; Cristobal, D; Fernandez-Soto, A; de Oliveira, C Mendes; Cepa-Nogue, J; Abramo, L R; Alcaniz, J S; Overzier, R; Hernandez-Monteagudo, C; Alfaro, E J; Kanaan, A; Carvano, J M; Reis, R R R; Gonzalez, E Martinez; Ascaso, B; Ballesteros, F; Xavier, H S; Varela, J; Ederoclite, A; Ramio, H Vazquez; Broadhurst, T; Cypriano, E; Angulo, R; Diego, J M; Zandivarez, A; Diaz, E; Melchior, P; Umetsu, K; Spinelli, P F; Zitrin, A; Coe, D; Yepes, G; Vielva, P; Sahni, V; Marcos-Caballero, A; Kitaura, F Shu; Maroto, A L; Masip, M; Tsujikawa, S; Carneiro, S; Nuevo, J Gonzalez; Carvalho, G C; Reboucas, M J; Carvalho, J C; Abdalla, E; Bernui, A; Pigozzo, C; Ferreira, E G M; Devi, N Chandrachani; Bengaly, C A P; Campista, M; Amorim, A; Asari, N V; Bongiovanni, A; Bonoli, S; Bruzual, G; Cardiel, N; Cava, A; Fernandes, R Cid; Coelho, P; Cortesi, A; Delgado, R G; Garcia, L Diaz; Espinosa, J M R; Galliano, E; Gonzalez-Serrano, J I; Falcon-Barroso, J; Fritz, J; Fernandes, C; Gorgas, J; Hoyos, C; Jimenez-Teja, Y; Lopez-Aguerri, J A; Juan, C Lopez-San; Mateus, A; Molino, A; Novais, P; OMill, A; Oteo, I; Perez-Gonzalez, P G; Poggianti, B; Proctor, R; Ricciardelli, E; Sanchez-Blazquez, P; Storchi-Bergmann, T; Telles, E; Schoennell, W; Trujillo, N; Vazdekis, A; Viironen, K; Daflon, S; Aparicio-Villegas, T; Rocha, D; Ribeiro, T; Borges, M; Martins, S L; Marcolino, W; Martinez-Delgado, D; Perez-Torres, M A; Siffert, B B; Calvao, M O; Sako, M; Kessler, R; Alvarez-Candal, A; De Pra, M; Roig, F; Lazzaro, D; Gorosabel, J; de Oliveira, R Lopes; Lima-Neto, G B; Irwin, J; Liu, J F; Alvarez, E; Balmes, I; Chueca, S; Costa-Duarte, M V; da Costa, A A; Dantas, M L L; Diaz, A Y; Fabregat, J; Ferrari, F; Gavela, B; Gracia, S G; Gruel, N; Gutierrez, J L L; Guzman, R; Hernandez-Fernandez, J D; Herranz, D; Hurtado-Gil, L; Jablonsky, F; Laporte, R; Tiran, L L Le; Licandro, J; Lima, M; Martin, E; Martinez, V; Montero, J J C; Penteado, P; Pereira, C B; Peris, V; Quilis, V; Sanchez-Portal, M; Soja, A C; Solano, E; Torra, J; Valdivielso, L

2014-01-01T23:59:59.000Z

112

Constraints on early dark energy from CMB lensing and weak lensing tomography  

SciTech Connect (OSTI)

Dark energy can be studied by its influence on the expansion of the Universe as well as on the growth history of the large-scale structure. In this paper, we follow the growth of the cosmic density field in early dark energy cosmologies by combining observations of the primary CMB temperature and polarisation power spectra at high redshift, of the CMB lensing deflection field at intermediate redshift and of weak cosmic shear at low redshifts for constraining the allowed amount of early dark energy. We present these forecasts using the Fisher matrix formalism and consider the combination of Planck data with the weak lensing survey of Euclid. We find that combining these data sets gives powerful constraints on early dark energy and is able to break degeneracies in the parameter set inherent to the various observational channels. The derived statistical 1{sigma}-bound on the early dark energy density parameter is {sigma}({Omega}{sup e}{sub d}) = 0.0022 which suggests that early dark energy models can be well examined in our approach. In addition, we derive the dark energy figure of merit for the considered dark energy parameterisation and comment on the applicability of the growth index to early dark energy cosmologies.

Hollenstein, Lukas; Crittenden, Robert [Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Burnaby Road, Portsmouth PO1 3FX (United Kingdom)] [Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Burnaby Road, Portsmouth PO1 3FX (United Kingdom); Sapone, Domenico [Departement de Physique Theorique, Universite de Geneve, 24 Quai Ernest-Ansermet, CH-1211 Geneve 4 (Switzerland)] [Departement de Physique Theorique, Universite de Geneve, 24 Quai Ernest-Ansermet, CH-1211 Geneve 4 (Switzerland); Schaefer, Bjoern Malte, E-mail: lukas.hollenstein@port.ac.uk, E-mail: domenico.sapone@unige.ch, E-mail: robert.crittenden@port.ac.uk, E-mail: spirou@ita.uni-heidelberg.de [Astronomisches Recheninstitut, Zentrum fuer Astronomie, Universitaet Heidelberg, Moenchhofstrasse 12, 69120 Heidelberg (Germany)

2009-04-15T23:59:59.000Z

113

Pacific Fuel Cell Corporation | Open Energy Information  

Open Energy Info (EERE)

Fuel Cell Corporation Fuel Cell Corporation Jump to: navigation, search Name Pacific Fuel Cell Corporation Address 26985 Lakeland Blvd. Place Euclid, Ohio Zip 44132 Sector Buildings, Efficiency, Renewable Energy, Services Product Consulting; Engineering/architectural/design; Maintenance and repair;Manufacturing;Raw materials/extraction; Research and development;Retail product sales and distribution;Trainining and education Phone number 216-731-0906 Website http://www.pacificfuelcell.com Coordinates 41.603828°, -81.494011° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.603828,"lon":-81.494011,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

114

The Renaissance Group, A Conserve First Company | Open Energy Information  

Open Energy Info (EERE)

Group, A Conserve First Company Group, A Conserve First Company Jump to: navigation, search Name The Renaissance Group, A Conserve First Company Address 8281 Euclid Chardon Road Place Kirtland, Ohio Zip 44094 Sector Buildings, Efficiency, Hydro, Renewable Energy, Solar, Wind energy Product Agriculture; Consulting;Energy audits/weatherization; Engineering/architectural/design;Installation;Investment/finances;Maintenance and repair;Manufacturing; Research and development;Retail product sales and distribution;Trainining and education Phone number 440-256-2800 Website http://www.ConserveFirst.com Coordinates 41.584344°, -81.346526° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.584344,"lon":-81.346526,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

115

Redshift?space distortions in deep redshift surveys as a probe of the invisible Universe  

Science Journals Connector (OSTI)

Massive redshift surveys of galaxies beyond the local Universe (i.e.z>0.3) provide an exhaustive probe of the observed acceleration of cosmic expansion. While they have the ability to measure the expansion history H(z) through Baryonic Acoustic Oscillations in the galaxy power spectrum they can at the same time probe f(z) using the redshift?space distortions introduced in the observed clustering pattern by galaxy peculiar motions. Coupling these two measurements one can in principle distinguish whether cosmic acceleration is due to a new form of dark energy in the cosmic budget or rather requires a modification of General Relativity. These two radically alternative scenarios are degenerate when considering H(z) alone as yielded e.g. by the Hubble diagram of Type Ia supernovae. We review our recent measurements of redshift distortions at z? 1 based on the VIMOS VLT Deep Survey Wide data and discuss the revived interest on this technique in the context of dark energy. Current results are consistent with the simplest cosmological?constant scenario but error bars are still too large to rule out alternative models. Forecasts based both on extensive simulations and Fisher?matrix computations show that next?generation deep surveys optimizing the combination of large volumes and good galaxy sampling will be able to use redshift distortions as a key tool to understand the physical origin of cosmic acceleration. Among these we introduce the newly started VIMOS Public Extragalactic Redshift Survey (VIPERS) at the ESO VLT which is building at ?0.8 a sample comparable to current local redshift surveys (10 5 redshifts in a volume 510 7 ? h ?1 ? Mpc 3 ). Finally we provide an example of the exquisite accuracy that could be reached on measurements of redshift?space distortions (among many others) with a massive 20 000? deg 2 near?infrared spectroscopic survey from space as foreseen by the EUCLID mission for the ESA Cosmic Vision program.

Luigi Guzzo; Olivier Le Fvre

2010-01-01T23:59:59.000Z

116

Non-linear relativistic contributions to the cosmological weak-lensing convergence  

E-Print Network [OSTI]

Relativistic contributions to the dynamics of structure formation come in a variety of forms, and can potentially give corrections to the standard picture on typical scales of 100 Mpc. These corrections cannot be obtained by Newtonian numerical simulations, so it is important to accurately estimate the magnitude of these relativistic effects. Density fluctuations couple to produce a background of gravitational waves, which is larger than any primordial background. A similar interaction produces a much larger spectrum of vector modes which represent the frame-dragging rotation of spacetime. These can change the metric at the percent level in the concordance model at scales below the equality scale. Vector modes modify the lensing of background galaxies by large-scale structure. This gives in principle the exciting possibility of measuring relativistic frame dragging effects on cosmological scales. The effects of the non-linear tensor and vector modes on the cosmic convergence are computed and compared to first-order lensing contributions from density fluctuations, Doppler lensing, and smaller Sachs-Wolfe effects. The lensing from gravitational waves is negligible so we concentrate on the vector modes. We show the relative importance of this for future surveys such as Euclid and SKA. We find that these non-linear effects only marginally affect the overall weak lensing signal so they can safely be neglected in most analyses, though are still much larger than the linear Sachs-Wolfe terms. The second-order vector contribution can dominate the first-order Doppler lensing term at moderate redshifts and are actually more important for survey geometries like the SKA.

Sambatra Andrianomena; Chris Clarkson; Prina Patel; Obinna Umeh; Jean-Philippe Uzan

2014-02-18T23:59:59.000Z

117

Linear Perturbation constraints on Multi-coupled Dark Energy  

E-Print Network [OSTI]

The Multi-coupled Dark Energy (McDE) scenario has been recently proposed as a specific example of a cosmological model characterized by a non-standard physics of the dark sector of the universe that nevertheless gives an expansion history which does not significantly differ from the one of the standard $\\Lambda $CDM model. In this work, we present the first constraints on the McDE scenario obtained by comparing the predicted evolution of linear density perturbations with a large compilation of recent data sets for the growth rate $f\\sigma_{8}$, including 6dFGS, LRG, BOSS, WiggleZ and VIPERS. Confirming qualitative expectations, growth rate data provide much tighter bounds on the model parameters as compared to the extremely loose bounds that can be obtained when only the background expansion history is considered. In particular, the $95\\%$ confidence level on the coupling strength $|\\beta |$ is reduced from $|\\beta |\\leq 83$ (background constraints only) to $|\\beta |\\leq 0.88$ (background and linear perturbation constraints). We also investigate how these constraints further improve when using data from future wide-field surveys such as supernova data from LSST and growth rate data from Euclid-type missions. In this case the $95\\%$ confidence level on the coupling further reduce to $|\\beta |\\leq 0.85$. Such constraints are in any case still consistent with a scalar fifth-force of gravitational strength, and we foresee that tighter bounds might be possibly obtained from the investigation of nonlinear structure formation in McDE cosmologies.[Abridged

Arpine Piloyan; Valerio Marra; Marco Baldi; Luca Amendola

2014-01-12T23:59:59.000Z

118

Phenomenology of dark energy: exploring the space of theories with future redshift surveys  

E-Print Network [OSTI]

We use the effective field theory of dark energy to explore the space of modified gravity models which are capable of driving the present cosmic acceleration. We identify five universal functions of cosmic time that are enough to describe a wide range of theories containing a single scalar degree of freedom in addition to the metric. The first function (the effective equation of state) uniquely controls the expansion history of the universe. The remaining four functions appear in the linear cosmological perturbation equations, but only three of them regulate the growth history of large scale structures. We propose a specific parameterization of such functions in terms of characteristic coefficients that serve as coordinates in the space of modified gravity theories and can be effectively constrained by the next generation of cosmological experiments. We address in full generality the problem of the soundness of the theory against ghost-like and gradient instabilities and show how the space of non-pathological models shrinks when a more negative equation of state parameter is considered. This analysis allows us to locate a large class of stable theories that violate the null energy condition (i.e. super-acceleration models) and to recover, as particular subsets, various models considered so far. Finally, under the assumption that the true underlying cosmological model is the $\\Lambda$ Cold Dark Matter ($\\Lambda$CDM) scenario, and relying on the figure of merit of EUCLID-like observations, we demonstrate that the theoretical requirement of stability significantly narrows the empirical likelihood, increasing the discriminatory power of data. We also find that the vast majority of these non-pathological theories generating the same expansion history as the $\\Lambda$CDM model predict a different, lower, growth rate of cosmic structures.

Federico Piazza; Heinrich Steigerwald; Christian Marinoni

2013-12-20T23:59:59.000Z

119

CLUSTER LENSING PROFILES DERIVED FROM A REDSHIFT ENHANCEMENT OF MAGNIFIED BOSS-SURVEY GALAXIES  

SciTech Connect (OSTI)

We report the first detection of a redshift-depth enhancement of background galaxies magnified by foreground clusters. Using 300,000 BOSS survey galaxies with accurate spectroscopic redshifts, we measure their mean redshift depth behind four large samples of optically selected clusters from the Sloan Digital Sky Survey (SDSS) surveys, totaling 5000-15,000 clusters. A clear trend of increasing mean redshift toward the cluster centers is found, averaged over each of the four cluster samples. In addition, we find similar but noisier behavior for an independent X-ray sample of 158 clusters lying in the foreground of the current BOSS sky area. By adopting the mass-richness relationships appropriate for each survey, we compare our results with theoretical predictions for each of the four SDSS cluster catalogs. The radial form of this redshift enhancement is well fitted by a richness-to-mass weighted composite Navarro-Frenk-White profile with an effective mass ranging between M{sub 200} {approx} 1.4-1.8 Multiplication-Sign 10{sup 14} M{sub Sun} for the optically detected cluster samples, and M{sub 200} {approx} 5.0 Multiplication-Sign 10{sup 14} M{sub Sun} for the X-ray sample. This lensing detection helps to establish the credibility of these SDSS cluster surveys, and provides a normalization for their respective mass-richness relations. In the context of the upcoming bigBOSS, Subaru Prime Focus Spectrograph, and EUCLID-NISP spectroscopic surveys, this method represents an independent means of deriving the masses of cluster samples for examining the cosmological evolution, and provides a relatively clean consistency check of weak-lensing measurements, free from the systematic limitations of shear calibration.

Coupon, Jean; Umetsu, Keiichi [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan (China); Broadhurst, Tom, E-mail: coupon@asiaa.sinica.edu.tw [Department of Theoretical Physics, University of Basque Country UPV/EHU, P.O. Box 644, E-48080 Bilbao (Spain)

2013-07-20T23:59:59.000Z

120

OPTICAL/NEAR-INFRARED SELECTION OF RED QUASI-STELLAR OBJECTS: EVIDENCE FOR STEEP EXTINCTION CURVES TOWARD GALACTIC CENTERS?  

SciTech Connect (OSTI)

We present the results of a search for red QSOs using a selection based on optical imaging from the Sloan Digital Sky Survey (SDSS) and near-infrared imaging from UKIDSS. Our main goal with the selection is to search for QSOs reddened by foreground dusty absorber galaxies. For a sample of 58 candidates (including 20 objects fulfilling our selection criteria that already have spectra in the SDSS), 46 (79%) are confirmed to be QSOs. The QSOs are predominantly dust-reddened except for a handful at redshifts z {approx}> 3.5. However, the dust is most likely located in the QSO host galaxies (and for two, the reddening is primarily caused by Galactic dust) rather than in the intervening absorbers. More than half of the QSOs show evidence of associated absorption (BAL absorption). Four (7%) of the candidates turned out to be late-type stars, and another four (7%) are compact galaxies. We could not identify the remaining four objects. In terms of their optical spectra, these QSOs are similar to the QSOs selected in the FIRST-2MASS Red Quasar Survey except they are on average fainter, more distant, and only two are detected in the FIRST survey. As per the usual procedure, we estimate the amount of extinction using the SDSS QSO template reddened by Small-Magellanic-Cloud-(SMC) like dust. It is possible to get a good match to the observed (rest-frame ultraviolet) spectra, but it is not possible to match the observed near-IR photometry from UKIDSS for nearly all the reddened QSOs. The most likely reasons are that the SDSS QSO template is too red at optical wavelengths due to contaminating host galaxy light and because the assumed SMC extinction curve is too shallow. Three of the compact galaxies display old stellar populations with ages of several Gyr and masses of about 10{sup 10} M{sub Sun} (based on spectral energy distribution modeling). The inferred stellar densities in these galaxies exceed 10{sup 10} M{sub Sun} kpc{sup -2}, which is among the highest measured for early-type galaxies. Our survey has demonstrated that selection of QSOs based on near-IR photometry is an efficient way to select QSOs, including reddened QSOs, with only small contamination from late-type stars and compact galaxies. This will be useful with ongoing and future wide-field near-IR surveys such as the VISTA and EUCLID surveys.

Fynbo, J. P. U.; Krogager, J.-K.; Vestergaard, M.; Geier, S. [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O (Denmark); Venemans, B. [Max-Planck Institute for Astronomy, Koenigstuhl 17, D-69117 Heidelberg (Germany); Noterdaeme, P. [CNRS-UPMC, UMR7095, Institut d'Astrophysique de Paris, 98bis Bd. Arago, F-75014 Paris (France); Moller, P. [European Southern Observatory, Karl-Schwarzschildstrasse 2, D-85748 Garching bei Muenchen (Germany); Ledoux, C. [European Southern Observatory, Alonso de Cordova 3107, Vitacura, Casilla 19001, Santiago 19 (Chile)

2013-01-15T23:59:59.000Z

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121

Non-linear evolution of the cosmic neutrino background  

SciTech Connect (OSTI)

We investigate the non-linear evolution of the relic cosmic neutrino background by running large box-size, high resolution N-body simulations which incorporate cold dark matter (CDM) and neutrinos as independent particle species. Our set of simulations explore the properties of neutrinos in a reference ?CDM model with total neutrino masses between 0.05-0.60 eV in cold dark matter haloes of mass 10{sup 11}?10{sup 15} h{sup ?1}M{sub s}un, over a redshift range z = 0?2. We compute the halo mass function and show that it is reasonably well fitted by the Sheth-Tormen formula, once the neutrino contribution to the total matter is removed. More importantly, we focus on the CDM and neutrino properties of the density and peculiar velocity fields in the cosmological volume, inside and in the outskirts of virialized haloes. The dynamical state of the neutrino particles depends strongly on their momentum: whereas neutrinos in the low velocity tail behave similarly to CDM particles, neutrinos in the high velocity tail are not affected by the clustering of the underlying CDM component. We find that the neutrino (linear) unperturbed momentum distribution is modified and mass and redshift dependent deviations from the expected Fermi-Dirac distribution are in place both in the cosmological volume and inside haloes. The neutrino density profiles around virialized haloes have been carefully investigated and a simple fitting formula is provided. The neutrino profile, unlike the cold dark matter one, is found to be cored with core size and central density that depend on the neutrino mass, redshift and mass of the halo, for halos of masses larger than ? 10{sup 13.5}h{sup ?1}M{sub s}un. For lower masses the neutrino profile is best fitted by a simple power-law relation in the range probed by the simulations. The results we obtain are numerically converged in terms of neutrino profiles at the 10% level for scales above ? 200 h{sup ?1}kpc at z = 0, and are stable with respect to box-size and starting redshift of the simulation. Our findings are particularly important in view of upcoming large-scale structure surveys, like Euclid, that are expected to probe the non-linear regime at the percent level with lensing and clustering observations.

Villaescusa-Navarro, Francisco; Viel, Matteo [INAF/Osservatorio Astronomico di Trieste, Via Tiepolo 11, 34143, Trieste (Italy); Bird, Simeon [Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ, 08540 (United States); Pea-Garay, Carlos, E-mail: villaescusa@oats.inaf.it, E-mail: spb@ias.edu, E-mail: penya@ific.uv.es, E-mail: viel@oats.inaf.it [Instituto de Fsica Corpuscular, CSIC-UVEG, E-46071, Paterna, Valencia (Spain)

2013-03-01T23:59:59.000Z

122

Final Technical Report: Intensive Quenching Technology for Heat Treating and Forging Industries  

SciTech Connect (OSTI)

Intensive quenching (IQ) process is an alternative way of hardening (quenching) steel parts through the use of highly agitated water and then still air. It was developed by IQ Technologies, Inc. (IQT) of Akron, Ohio. While conventional quenching is usually performed in environmentally unfriendly oil or water/polymer solutions, the IQ process uses highly agitated environmentally friendly water or low concentration water/mineral salt solutions. The IQ method is characterized by extremely high cooling rates of steel parts. In contrast to conventional quenching, where parts cool down to the quenchant temperature and usually have tensile or neutral residual surface stresses at the end of quenching. The IQ process is interrupted when the part core is still hot and when there are maximum compressive stresses deep into the parts, thereby providing hard, ductile, better wear resistant parts. The project goal was to advance the patented IQ process from feasibility to commercialization in the heat-treating and forging industries to reduce significantly energy consumption and environmental impact, to increase productivity and to enhance economic competitiveness of these industries as well as Steel, Metal Casting and Mining industries. To introduce successfully the IQ technology in the U.S. metal working industry, the project team has completed the following work over the course of this project: A total of 33 manufacturers of steel products provided steel parts for IQ trails. IQT conducted IQ demonstrations for 34 different steel parts. Our customers tested intensively quenched parts in actual field conditions to evaluate the product service life and performance improvement. The data obtained from the field showed the following: Service life (number of holes punched) of cold-work punches (provided by EHT customer and made of S5 shock-resisting steel) was improved by two to eight times. Aluminum extrusion dies provided by GAM and made of hot work H-13 steel outperformed the standard dies by at least 50%. Dies provided by an AST customer, made of plain carbon 1045 steel and used for pellet manufacturing outperformed the standard dies by more than 100%. Concrete crusher liner wear plates provided by an EHT customer and made of 1045 steel, had the same surface hardness as the plates made of more expensive, pre-hardened high alloy HARDOX-500 material supplied by a Swedish company and used currently by the EHT customer. The 1045 material intensively quenched wear plates are currently in the field. Concrete block molding machine wear plates provided by an IQT customer and made of 8620 steel were processed at the AST production IQ system using a 40% reduced carburization cycle. An effective case depth in the intensively quenched wear plates was the same as in the standard, oil quenched parts. Base keys provided by an EHT customer and made of 8620 steel were processed using a 40% reduced carburization cycle. The intensively quenched parts showed the same performance as standard parts. IQT introduced the IQ process in heat treat practices of three commercial heat-treating shops: Akron Steel Treating Co., Summit Heat Treating Co. and Euclid Heat Treating Co. CWRU conducted a material characterization study for a variety of steels to develop a database to support changing/modification of recognized standards for quenching steel parts. IQT conducted a series of IQ workshops, published seven technical papers and participated in ASM Heat Treating Society conference and exposition and in Furnace North America Show. IQT designed and built a fully automated new IQ system installed at the Center for Intensive Quenching. This system includes the following major components: a stand-alone 1,900-gallon IQ water system, a 24'' x 24'' atmosphere pit furnace, and an automated load transfer mechanism. IQT established a ''Center for Intensive Quenching'' at the AST facilities. The 4,000 square feet Center includes the following equipment: High-velocity single part quenching IQ unit developed and built previously under EMTEC CT-65 project. The unit is equipped w

Aronov, Michael A.

2005-12-21T23:59:59.000Z