Results 71 to 80 of about 441,564 (317)

Lensing Reconstruction from the Cosmic Microwave Background Polarization with Machine Learning

The Astrophysical Journal, 2023
The lensing effect of the cosmic microwave background (CMB) is a powerful tool for our study of the distribution of matter in the universe. The quadratic estimator (QE) method, which is widely used to reconstruct lensing potential, has been known to be ...
Ye-Peng Yan, Guo-Jian Wang, Si-Yu Li, Yang-Jie Yan, Jun-Qing Xia   +4 more
doaj   +1 more source

Imprint of Sterile Neutrinos in the Cosmic Microwave Background Radiation [PDF]

Phys.Rev.D59:043001,1999, 1998
The existence of low-mass sterile neutrinos is suggested by the current status of solar and atmospheric neutrinos together with the LSND experiment. In typical four-flavor scenarios, neutrinos would contribute to a cosmic hot dark matter component and to an increased radiation content at the epoch of matter-radiation equality. These effects leave their
arxiv   +1 more source

Non-Critical Liouville String Escapes Constraints on Generic Models of Quantum Gravity [PDF]

, 2001
It has recently been pointed out that generic models of quantum gravity must contend with severe phenomenological constraints imposed by gravitational Cerenkov radiation, neutrino oscillations and the cosmic microwave background radiation.
A.V. Olinto, B.E. Schaefer, D. V. Nanopoulos, D.J. Bird, E. D’Hoker, E. D’Hoker, E. Lisi, F. Benatti, F. Benatti, F. Benatti, F. David, G. Amelino-Camelia, G. Amelino-Camelia, G.D. Moore, G.T. Zatsepin, H. Verlinde, H. Yu, I. Antoniadis, I. Antoniadis, J. Distler, J. Ellis, J. Ellis, J. Ellis, J. Ellis, J. Ellis, J. Maldacena, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, John Ellis, K. Greisen, L. Randall, M. Nagano, M. Takeda, M.A. Lawrence, N. Arkani-Hamed, N. E. Mavromatos, N.E. Mavromatos, N.E. Mavromatos, P. Huet, P. Kaaret, R. Adler, R. Ratazzi, S.D. Biller, S.L. Adler, S.S. Gubser   +51 more
core   +3 more sources

Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions

Advanced Intelligent Systems, EarlyView.
Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley   +1 more source

Review on studies in natural background radiation

Radiation Protection and Environment, 2018
The environment around us is radioactive due to background radiation emitted from the sky, earth's crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they arise from ...
Abdu Hamoud Al-Khawlany, A R Khan, J M Pathan   +2 more
doaj   +1 more source

Diffuse Background Radiation [PDF]

, 1999
A new determination of the upper limit to the cosmic diffuse background radiation, at ~110 nm, of 300 photons s-1 cm-2 sr-1 nm-1, is placed in the context of diffuse background measurements across the entire electromagnetic spectrum, including new ...
Gehrels N., Longair M. S., Ressell M. T., Richard C. Henry, Vogeley M. S.   +4 more
core   +2 more sources

Economic Rationality and International Humanitarianism: Ryōkichi Sagane's Advocacy Regarding the Introduction of Foreign Nuclear Reactors to Japan**

Berichte zur Wissenschaftsgeschichte, EarlyView.
Abstract The 2011 Fukushima Daiichi Nuclear Power Plant accident underscored the crucial role of nuclear engineering experts. However, the specific arguments and motivations of scientists advocating for the introduction of foreign reactors remain unclear.
Masahiro Inohana
wiley   +1 more source

Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G

The Astrophysical Journal
We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope.
K. Prabhu, S. Raghunathan, M. Millea, G. P. Lynch, P. A. R. Ade, E. Anderes, A. J. Anderson, B. Ansarinejad, M. Archipley, L. Balkenhol, K. Benabed, A. N. Bender, B. A. Benson, F. Bianchini, L. E. Bleem, F. R. Bouchet, L. Bryant, E. Camphuis, J. E. Carlstrom, T. W. Cecil, C. L. Chang, P. Chaubal, P. M. Chichura, A. Chokshi, T.-L. Chou, A. Coerver, T. M. Crawford, A. Cukierman, C. Daley, T. de Haan, K. R. Dibert, M. A. Dobbs, A. Doussot, D. Dutcher, W. Everett, C. Feng, K. R. Ferguson, K. Fichman, A. Foster, S. Galli, A. E. Gambrel, R. W. Gardner, F. Ge, N. Goeckner-Wald, R. Gualtieri, F. Guidi, S. Guns, N. W. Halverson, E. Hivon, G. P. Holder, W. L. Holzapfel, J. C. Hood, A. Hryciuk, N. Huang, F. Kéruzoré, L. Knox, M. Korman, K. Kornoelje, C.-L. Kuo, A. T. Lee, K. Levy, A. E. Lowitz, C. Lu, A. Maniyar, F. Menanteau, J. Montgomery, Y. Nakato, T. Natoli, G. I. Noble, V. Novosad, Y. Omori, S. Padin, Z. Pan, P. Paschos, K. A. Phadke, A. W. Pollak, W. Quan, M. Rahimi, A. Rahlin, C. L. Reichardt, M. Rouble, J. E. Ruhl, E. Schiappucci, G. Smecher, J. A. Sobrin, A. A. Stark, J. Stephen, A. Suzuki, C. Tandoi, K. L. Thompson, B. Thorne, C. Trendafilova, C. Tucker, C. Umilta, A. Vitrier, J. D. Vieira, Y. Wan, G. Wang, N. Whitehorn, W. L. K. Wu, V. Yefremenko, M. R. Young, J. A. Zebrowski   +102 more
doaj   +1 more source

Observations of the Cosmic Microwave Background [PDF]

, 1994
The properties of the cosmic microwave background radiation provide unique constraints on cosmological models, i.e. on the content, history, and evolution of the Universe. I discuss the latest measurements of the spectral and spatial properties of the cosmic microwave background radiation.
arxiv   +1 more source

Invisible Labor and the “Ghost Particle”: Underground Physics at the Kolar Gold Fields**

Berichte zur Wissenschaftsgeschichte, EarlyView.
Abstract When cosmic rays—high‐energy particles from outer space—encounter the Earth's atmosphere, they produce particles called neutrinos. To detect them, physicists go underground inside deep mines where the overlying rock can filter out the cosmic‐ray background radiation.
Nithyanand Rao
wiley   +1 more source