Results 81 to 90 of about 56,380 (334)

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

Advanced Photonics Research
The celebrated theory of general relativity has inspired research on optical simulations using artificial microstructures to mimic curved space–times.
Jun‐Liang Duan, Wen Xiao, Minyong Guo, Tong Liu, Huanyang Chen, Jin‐Hui Chen   +5 more
doaj   +1 more source

Weak lensing of the CMB

, 2009
The cosmic microwave background (CMB) represents a unique source for the study of gravitational lensing. It is extended across the entire sky, partially polarized, located at the extreme distance of z=1100, and is thought to have the simple, underlying ...
Challinor, Anthony, Hanson, Duncan, Lewis, Antony   +2 more
core   +1 more source

Circular Economy Platforms: A Systematic Review

Business Strategy and the Environment, EarlyView.
ABSTRACT Digital platforms enable circular business models that can provide both economic and environmental benefits. However, the literature on platforms in the context of the circular economy has remained descriptive and fragmented across fields, posing challenges for synthesizing accumulated knowledge.
Outi Blackburn, Paavo Ritala, Joona Keränen, Nancy Bocken   +3 more
wiley   +1 more source

A Lensing Reconstruction of Primordial Cosmic Microwave Background Polarization [PDF]

, 2002
We discuss a possibility to directly reconstruct the CMB polarization field at the last scattering surface by accounting for modifications imposed by the gravitational lensing effect.
A. Cooray, A. Cooray, A. Cooray, Asantha Cooray, J. Guzik, J. Silk, K. Benabed, L. Knox, M. Kamionkowski, M. Kamionkowski, M. Kesden, M. Zaldarriaga, M. Zaldarriaga, M. Zaldarriaga, P.J.E. Peebles, R.A. Sunyaev, R.A. Sunyaev, U. Seljak, U. Seljak, W. Hu, W. Hu, W. Hu, W. Hu   +22 more
core   +2 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Hubble Constant, Lensing, and Time Delay in Relativistic MOND

, 2013
Time delay in galaxy gravitational lensing systems has been used to determine the value of Hubble constant. As in other dynamical phenomena at the scale of galaxy, dark matter is often invoked in gravitational lensing to account for the "missing mass ...
Chiu, Mu-Chen, Ko, Chung-Ming, Tian, Yong   +2 more
core   +1 more source

Global properties of gravitational lens maps in a Lorentzian manifold setting [PDF]

, 2000
In a general-relativistic spacetime (Lorentzian manifold), gravitational lensing can be characterized by a lens map, in analogy to the lens map of the quasi-Newtonian approximation formalism.
Perlick, Volker
core   +3 more sources

Becoming inclusive: Developing pre‐service teachers' orientations towards their practice in Scotland

The Curriculum Journal, EarlyView.
Abstract This article presents findings, from a case study with a cohort of third‐year undergraduate pre‐service teachers (PSTs) in Scotland, regarding their ideas about inclusion and curricular justice, as they concurrently encountered practice and theory.
Andrea Priestley, Stella Mouroutsou, Nuzhat Uthmani   +2 more
wiley   +1 more source

Lensing or luck? False alarm probabilities for gravitational lensing of gravitational waves [PDF]

, 2022
Mesut Çalışkan, José María Ezquiaga, O. A. Hannuksela, D. E. Holz   +3 more
openalex   +1 more source

Gravitational Lensing at Millimeter Wavelengths

, 2002
With today's millimeter and submillimeter instruments observers use gravitational lensing mostly as a tool to boost the sensitivity when observing distant objects.
A. Omont, A. Omont, A.C. Fabian, A.J. Barger, A.J. Barger, A.J. Barger, A.P. Rao, A.R. Patnaik, A.R. Patnaik, A.W. Blain, A.W. Blain, A.W. Blain, A.W. Blain, A.W. Blain, C. Borys, C. Ledoux, C. Lidman, C.D. Fassnacht, C.L. Carilli, C.L. Carilli, C.L. Carilli, C.L. Carilli, C.S. Kochanek, C.S. Kochanek, D. Alloin, D. Alloin, D. Alloin, D. Downes, D. Downes, D. Downes, D. Downes, D. Turnshek, D.B. Haarsma, D.B. Sanders, D.B. Sanders, D.B. Sanders, D.H. Hughes, D.H. Hughes, D.J. Fixsen, D.J. Wilner, D.L. Jauncey, D.L. Jauncey, D.T. Frayer, D.T. Frayer, D.T. Frayer, D.W. Hogg, E. Bertin, E. Egami, E.S. Perlman, F. Combes, F. Combes, F. Combes, F. Combes, F. Courbin, G. Lagache, G. Thuma, G.F. Lewis, G.F. Lewis, G.F. Lewis, G.L. Granato, G.L. Granato, H.A. Thronson, I. Smail, I. Smail, I. Smail, I. Smail, I.A.W. Browne, I.F. Mirabel, J. Lehár, J. Lehár, J. Pelt, J. Pelt, J. Pelt, J. Tonry, J.-L. Puget, J.-P. Kneib, J.-P. Kneib, J.A. Högbom, J.E.J. Lovell, J.E.J. Lovell, J.J. Swift, J.M. Mazzarella, J.N. Hewitt, K. Ohta, K.M. Menten, K.M. Menten, L.B. Lucy, L.L.R. Williams, L.V.E. Koopmans, L.V.E. Koopmans, M. Gerin, M. Lerner, M. Polletta, M. Rowan-Robinson, M. Ryle, M. Tsuboi, M.J. Irwin, M.S. Yun, N. Metropolis, N.Z. Scoville, N.Z. Scoville, N.Z. Scoville, P. Andreani, P. Cox, P. Magain, P. Papadopoulos, P. Schneider, P.M. Solomon, P.M. Solomon, P.M. Solomon, P.P. Papadopoulos, P.R. Bevington, R. Barkana, R. Barvainis, R. Barvainis, R. Barvainis, R. Barvainis, R. Gispert, R. Kayser, R. Siebenmorgen, R. Subrahmanyan, R.A. Edelson, R.A. Ibata, R.A. Windhorst, R.H. Hildebrand, R.J. Ivison, R.J. Ivison, R.J. Ivison, R.L. Brown, S. Eales, S. Eales, S. Guilloteau, S. Guilloteau, S. Nair, S. Wallington, S.E. Scott, S.G. Djorgovski, S.J.E. Radford, S.L. Ellison, T. Ommen van, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Yamada, T.G. Phillips, T.J. Broadhurst, T.R. Lauer, T.T. Takeuchi, W. Xu, W.H. Press   +155 more
core   +3 more sources