Search Results - "gravitation"

Scattering of gravitational radiation by Macquart, Jean-pierre

Subjects: “…gravitational lensing -- gravitational waves -- scattering -- galaxies: structure -- dark matter…”
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Is gravitational search algorithm's initial gravitational constant a function dependent parameter? by Nor Azlina, Ab. Aziz Nor, Hidayati, Abdul Aziz, Aminurafiuddin, Zulkifli, Zuwairie, Ibrahim, Tasiransurini, Ab. Rahman

“…Gravitational search algorithm (GSA) has several parameters to be initialized. …”
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Strong-Field phenomenology in alternative theories of gravitation by Franchini, Nicola

“…Up to date, general relativity is in agreement with weak-field tests of gravity and with binary pulsars observations, and it is consistent with the data coming from the detection of gravitational waves emitted by binaries of compact objects. …”
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The gravitational dynamics of warped throats by Butcher, Neil A., Saffin, Paul M.

“…We investigate the time evolution due to gravitational dynamics of a particular spacetime commonly used in brane-cosmology and string compactifications, namely the Klebanov-Strassler geometry, which is achieved by adding a perturbation to the momentum of the static solution. …”
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Integral inversion of GRAIL inter-satellite gravitational accelerations for regional recovery of the lunar gravitational field by Šprlák, M., Han, S.C., Featherstone, Will

“…© 2019 COSPAR We present an integral-based approach for high-resolution regional recovery of the gravitational field in this article. We derive rigorous remove-compute-restore integral estimators relating the line-of-sight gravitational acceleration to an arbitrary order radial derivative of the gravitational potential. …”
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Limits on the stochastic gravitational wave background from the North American Nanohertz Observatory for Gravitational Waves by Demorest, P., Ferdman, R., Gonzalez, M., Nice, D., Ransom, S., Stairs, I., Arzoumanian, Z., Brazier, A., Burke-Spolaor, S., Chamberlin, S., Cordes, J., Ellis, J., Finn, L., Freire, P., Giampanis, S., Jenet, F., Kaspi, V., Lazio, J., Lommen, A., McLaughlin, M., Palliyaguru, N., Perrodin, D., Shannon, Ryan, Siemens, X., Stinebring, D., Swiggum, J., Zhu, W.

“…We present methods for analyzing post-fit timing residuals for the presence of a gravitational wave signal with a specified spectral shape. …”
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Gravitational waves from oscillon preheating by Zhou, Shuang-Yong, Copeland, Edmund J., Easther, Richard, Finkel, Hal, Mou, Zong-Gang, Saffin, Paul M.

“…An isolated oscillon is spherically symmetric and does not radiate gravitational waves, and we show that the flux of gravitational radiation generated between oscillons is also small. …”
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Gravitational memory for uniformly accelerated observers by Kolekar, Sanved, Louko, Jorma

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Gravitational wave astronomy: the current status by Blair, D., Ju, L., Zhao, C., Wen, L., Chu, Q., Fang, Q., Cai, R., Gao, J., Lin, X., Liu, D., Wu, L., Zhu, Z., Reitze, D., Arai, K., Zhang, F., Flaminio, R., Zhu, X., Hobbs, G., Manchester, R., Shannon, Ryan, Baccigalupi, C., Gao, W., Xu, P., Bian, X., Cao, Z., Chang, Z., Dong, P., Gong, X., Huang, S., Ju, P., Luo, Z., Qiang, L., Tang, W., Wan, X., Wang, Y., Xu, S., Zang, Y., Zhang, H., Lau, Y., Ni, W.

“…Sect. 2 reviews the theory of gravitational waves and the principles of detection using laser interferometry. …”
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Performance and Diversity of Gravitational Search Algorithm by Nor Azlina, Ab. Aziz, Marizan, Mubin, Zuwairie, Ibrahim, Sophan Wahyudi, Nawawi

“…It is based on how bodies in the universe are attracted to each other by gravitational force between them. The performance of GSA is studied here using benchmark functions. …”
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Adaptive Switching Gravitational Search Algorithm: An Attempt To Improve Diversity Of Gravitational Search Algorithm Through Its Iteration Strategy by Nor Azlina, Ab. Aziz, Zuwairie, Ibrahim, Marizan, Mubin, Shahdan, Sudin

“…An adaptive gravitational search algorithm (GSA) that switches between synchronous and asynchronous update is presented in this work. …”
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Gravitational redshifts and the mass distributions of galaxies and clusters by Coggins, Simon John

Subjects: “…gravitational redshift…”
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Gravitational Higgs mechanism in neutron star interiors by Coates, Andrew, Horbatsch, Michael W., Sotiriou, Thomas P.

“…This is achieved by means of a light gravitational scalar, and the scalarization phase transition in scalar-tensor theories of gravitation. …”
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Planck 2015 results. XV. Gravitational lensing by Ade, P.A.R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A.J., Barreiro, R.B., Bartlett, J.G., Bartolo, N., Basak, S., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bock, J.J., Bonaldi, A., Bonavera, L., Bond, J.R., Borrill, J., Bouchet, F.R., Boulanger, F., Bucher, M., Burigana, C., Butler, R.C., Calabrese, E., Cardoso, J.-F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H.C., Christensen, P.R., Church, S., Clements, D.L., Colombi, S., Colombo, L.P.L., Combet, C., Couchot, F., Coulais, A., Crill, B.P., Curto, A., Cuttaia, F., Danese, L., Davies, R.D., Davis, R.J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Désert, F.-X., Diego, J.M., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dunkley, J., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T.A., Eriksen, H.K., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Fraisse, A.A., Franceschi, E., Frejsel, A., Galeotta, S., Galli, S., Ganga, K., Giard, M., Giraud-Héraud, Y., Gjerløw, E., González-Nuevo, J., Górski, K.M., Gratton, S., Gregorio, A., Gruppuso, A., Gudmundsson, J.E., Hansen, F.K., Hanson, D., Harrison, D.L., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S.R., Hivon, E., Hobson, M., Holmes, W.A., Hornstrup, A., Hovest, W., Huffenberger, K.M., Hurier, G., Jaffe, A.H., Jaffe, T.R., Jones, W.C., Juvela, M., Keihänen, E., Keskitalo, R., Kisner, T.S., Kneissl, R., Knoche, J., Kunz, M., Kurki-Suonio, H., Lagache, G., Lähteenmäki, A., Lamarre, J.-M., Lasenby, A., Lattanzi, M., Lawrence, C.R., Leonardi, R., Lesgourgues, J., Levrier, F., Lewis, A., Liguori, M., Lilje, P.B., Linden-Vørnle, M., López-Caniego, M., Lubin, P.M., Macías-Pérez, J.F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P.G., Martínez-González, E., Masi, S., Matarrese, S., McGehee, P., Meinhold, P.R., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M.-A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, Adam, Munshi, D., Murphy, J.A., Naselsky, P., Nati, F., Natoli, P., Netterfield, C.B., Nørgaard-Nielsen, H.U., Noviello, F., Novikov, D., Novikov, I., Oxborrow, C.A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Perdereau, O., Perotto, L., Perrotta, F., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Popa, L., Pratt, G.W., Prézeau, G., Prunet, S., Puget, J.-L., Rachen, J.P., Reach, W.T., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ristorcelli, I., Rocha, G., Rosset, C., Rossetti, M., Roudier, G., Rowan-Robinson, M., Rubiño-Martín, J.A., Rusholme, B., Sandri, M., Santos, D., Savelainen, M., Savini, G., Scott, D., Seiffert, M.D., Shellard, E.P.S., Spencer, L.D., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sutton, D., Suur-Uski, A.-S., Sygnet, J.-F., Tauber, J.A., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Wade, L.A., Wandelt, B.D., Wehus, I.K., White, M., Yvon, D., Zacchei, A., Zonca, A.

Subjects: “…gravitational lensing: weak; cosmological parameters; cosmic background radiation; large-scale structure of Universe; cosmology: observations…”
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High-harmonic cosmic strings and gravitational waves by Pazouli, Despoina

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Primordial gravitational waves in the cosmic microwave background by Clarke, Thomas James

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Modern Methods and Their Applications to Strong Gravitational Lensing by Maresca, J

Subjects: “…strong gravitational lensing…”
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Gravitational Search Algorithm for Assembly Sequence Planning by Ismail, Ibrahim, Zuwairie, Ibrahim, Hamzah, Ahmad, Mohd Falfazli, Mat Jusof, Zulkifli, Md. Yusof, Sophan Wahyudi, Nawawi, Marizan, Mubin

“…In this paper, an approach using Gravitational Search Algorithm (GSA) which is a heuristic optimization algorithm that incorporates the Newton’s law of gravity and the law of motion into analytical studies of systems is proposed to solve the assembly sequence planning problem. …”
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A fast discrete gravitational search algorithm by Hasrul, Che Shamsudin, Addie Irawan, Hashim, Zuwairie, Ibrahim, Amar Faiz, Zainal Abidin, Sophan Wahyudi, Nawawi, Muhammad Arif, Abdul Rahim, Kamal, Khalil

“…This study introduces a variant of Gravitational Search Algorithm (GSA) for discrete optimization problems, namely, Fast Discrete Gravitational Search Algorithm (FDGSA). …”
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Development of inquiry based learning module for gravitation topic: need analysis by Razali, Fazilah, Mohd Ayub, Ahmad Fauzi, Zaini, Nourhaizum Awang

“…The study has found four primary themes: (1) The importance of learning gravitation topic, (2) Challenges in teaching and learning gravitation topic, (3) Implemented teaching strategies for gravitation topic, and (4) Desired improvement of teaching strategies for gravitation topic. …”
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