نتایج جستجو برای: gravitational search

تعداد نتایج: 333957  

E. Salajegheh , M. Dehghani, M. Mashayekhi,

In this paper, for topology optimization of double layer grids, an efficient optimization method is presented by combination of Imperialist Competitive Algorithm (ICA) and Gravitational Search Algorithm (GSA) which is called ICA-GSA method. The present hybrid method is based on ICA but the moving of countries toward their relevant imperialist is done using the la...

2016
Soodabeh Darzi Sieh Kiong Tiong Mohammad Tariqul Islam Hassan Rezai Soleymanpour Salehin Kibria

An experience oriented-convergence improved gravitational search algorithm (ECGSA) based on two new modifications, searching through the best experiments and using of a dynamic gravitational damping coefficient (α), is introduced in this paper. ECGSA saves its best fitness function evaluations and uses those as the agents' positions in searching process. In this way, the optimal found trajector...

2003
Gabriela González

We describe the search for gravitational waves from inspiraling neutron star binary systems, using data from the first Scientific Run of the LIGO Science Collaboration.

2016
S. Klimenko N. Christensen E. A. Huerta V. Tiwari S. R. P. Mohapatra A. Gopakumar M. Haney P. Ajith S. T. McWilliams G. Vedovato M. Drago F. Salemi G. A. Prodi C. Lazzaro S. Tiwari G. Mitselmakher F. Da Silva

"Proposed search for the detection of gravitational waves from eccentric binary black holes. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Most compact binary sy...

2010
I Leonor L Cadonati E Coccia S D’Antonio A Di Credico V Fafone R Frey W Fulgione E Katsavounidis C D Ott

We discuss the science motivations and prospects for a joint analysis of gravitational wave (GW) and low-energy neutrino data to search for prompt signals from nearby supernovae (SNe). Both gravitational wave and low-energy neutrinos are expected to be produced in the innermost region of a core-collapse supernova, and a search for coincident signals would probe the processes which power a super...

Journal: :Physical review letters 2005
B Abbott R Abbott R Adhikari J Agresti P Ajith B Allen J Allen R Amin S B Anderson W G Anderson M Araya H Armandula M Ashley C Aulbert S Babak R Balasubramanian S Ballmer B C Barish C Barker D Barker M A Barton K Bayer K Belczynski J Betzwieser B Bhawal I A Bilenko G Billingsley E Black K Blackburn L Blackburn B Bland L Bogue R Bork S Bose P R Brady V B Braginsky J E Brau D A Brown A Buonanno D Busby W E Butler L Cadonati G Cagnoli J B Camp J Cannizzo K Cannon L Cardenas K Carter M M Casey P Charlton S Chatterji Y Chen D Chin N Christensen T Cokelaer C N Colacino R Coldwell D Cook T Corbitt D Coyne J D E Creighton T D Creighton J Dalrymple E D'Ambrosio K Danzmann G Davies D DeBra V Dergachev S Desai R DeSalvo S Dhurandar M Díaz A Di Credico R W P Drever R J Dupuis P Ehrens T Etzel M Evans T Evans S Fairhurst L S Finn K Y Franzen R E Frey P Fritschel V V Frolov M Fyffe K S Ganezer J Garofoli I Gholami J A Giaime K Goda L Goggin G González C Gray A M Gretarsson D Grimmett H Grote S Grunewald M Guenther R Gustafson W O Hamilton C Hanna J Hanson C Hardham G Harry J Heefner I S Heng M Hewitson N Hindman P Hoang J Hough W Hua M Ito Y Itoh A Ivanov B Johnson W W Johnson D I Jones G Jones L Jones V Kalogera E Katsavounidis K Kawabe S Kawamura W Kells A Khan C Kim P King S Klimenko S Koranda D Kozak B Krishnan M Landry B Lantz A Lazzarini M Lei I Leonor K Libbrecht P Lindquist S Liu M Lormand M Lubinski H Lück M Luna B Machenschalk M MacInnis M Mageswaran K Mailand M Malec V Mandic S Marka E Maros K Mason L Matone N Mavalvala R McCarthy D E McClelland M McHugh J W C McNabb A Melissinos G Mendell R A Mercer S Meshkov E Messaritaki C Messenger E Mikhailov S Mitra V P Mitrofanov G Mitselmakher R Mittleman O Miyakawa S Mohanty G Moreno K Mossavi G Mueller S Mukherjee E Myers J Myers T Nash F Nocera J S Noel B O'Reilly R O'Shaughnessy D J Ottaway H Overmier B J Owen Y Pan M A Papa V Parameshwaraiah C Parameswariah M Pedraza S Penn M Pitkin R Prix V Quetschke F Raab H Radkins R Rahkola M Rakhmanov K Rawlins S Ray-Majumder V Re T Regimbau D H Reitze R Riesen K Riles B Rivera D I Robertson N A Robertson C Robinson S Roddy A Rodriguez J Rollins J D Romano J Romie S Rowan A Rüdiger L Ruet P Russell K Ryan V Sandberg G H Sanders V Sannibale P Sarin B S Sathyaprakash P R Saulson R Savage A Sazonov R Schilling R Schofield B F Schutz P Schwinberg S M Scott S E Seader A C Searle B Sears D Sellers A S Sengupta P Shawhan D H Shoemaker A Sibley X Siemens D Sigg A M Sintes J Smith M R Smith O Spjeld K A Strain D M Strom A Stuver T Summerscales M Sung P J Sutton D B Tanner R Taylor K A Thorne K S Thorne K V Tokmakov C Torres C Torrie G Traylor W Tyler D Ugolini C Ungarelli M Vallisneri M van Putten S Vass A Vecchio J Veitch C Vorvick S P Vyachanin L Wallace H Ward R Ward K Watts D Webber U Weiland A Weinstein R Weiss S Wen K Wette J T Whelan S E Whitcomb B F Whiting S Wiley C Wilkinson P A Willems B Willke A Wilson W Winkler S Wise A G Wiseman G Woan D Woods R Wooley J Worden I Yakushin H Yamamoto S Yoshida M Zanolin L Zhang N Zotov M Zucker J Zweizig

The Laser Interferometer Gravitational-Wave Observatory has performed a third science run with much improved sensitivities of all three interferometers. We present an analysis of approximately 200 hours of data acquired during this run, used to search for a stochastic background of gravitational radiation. We place upper bounds on the energy density stored as gravitational radiation for three d...

Journal: :journal of industrial strategic management 2014
a norouzi, a tolouei ashlaghi,

scheduling is to determine the priorities or arrange the activities to meet the needs, limitations and certain goals. because the time is always a limited resource, all activities should be scheduled to use optimally and certainly the resource. gravitational force algorithm, like other evolutionary algorithms, is inspired by nature. the effect of the gravity on the objects reciprocally and to a...

2008
Alexander Dietz

The LIGO gravitational wave detectors have recently reached their design sensitivity and finished a two-year science run. During this period one year of data with unprecedented sensitivity has been collected. I will briefly describe the status of the LIGO detectors and the overall quality of the most recent science run. I also will present results of a search for inspiral waveforms in gravitati...

1997
A. KRÓLAK

Pulsars are one of the primary sources of gravitational-waves that can be observed by detectors that are currently under construction . The data analysis involved to do the search for such sources implies a very heavy computational cost . Here we analyse this problem using a simple model of the gravitational-wave signal from a pulsar. A detailed summary of the current understanding of the gravi...

2012
J. Abadie B. P. Abbott

Aims. The detection and measurement of gravitational-waves from coalescing neutron-star binary systems is an important science goal for ground-based gravitational-wave detectors. In addition to emitting gravitational-waves at frequencies that span the most sensitive bands of the LIGO and Virgo detectors, these sources are also amongst the most likely to produce an electromagnetic counterpart to...

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