Results 151 to 160 of about 4,292,570 (358)

Synthetic modeling: A cell‐free approach for faster implementation of Raman spectroscopy in cell culture

Biotechnology Progress, EarlyView.
Abstract Monitoring cell culture is crucial for gaining a deeper understanding of processes and ensuring the production of safe and high‐quality products. The capability to measure in real time several parameters of interest can be achieved with Raman spectroscopy.
Célia Sanchez, Hadi El Radi, Nathan Gay, Johan Cailletaud, Kévin Grollier, Fabrice Thomas, Thierry Gonthiez   +6 more
wiley   +1 more source

Suppressing the QCD axion abundance by hidden monopoles

Physics Letters B, 2016
We study the Witten effect of hidden monopoles on the QCD axion dynamics, and show that its abundance as well as isocurvature perturbations can be significantly suppressed if there is a sufficient amount of hidden monopoles.
Masahiro Kawasaki, Fuminobu Takahashi, Masaki Yamada   +2 more
doaj   +1 more source

ACCELERATION OF COSMIC RAYS AT COSMIC SHOCKS [PDF]

Journal of The Korean Astronomical Society, 2003
Nonthermal particles can be produced due to incomplete thermalization at collisionless shocks and further accelerated to very high energies via diffusive shock acceleration. In a previous study we explored the cosmic ray (CR) acceleration at cosmic shocks through numerical simulations of CR modified, quasi-parallel shocks in 1D plane-parallel geometry ...
openaire   +4 more sources

Cosmic Ray Physics with the LOFAR Radio Telescope

, 2019
The LOFAR radio telescope is able to measure the radio emission from cosmic ray induced air showers with hundreds of individual antennas. This allows for precision testing of the emission mechanisms for the radio signal as well as determination of the ...
Bonardi, A, Buitink, S, Corstanje, A, Falcke, H, Hare, B M, Hörandel, J R, Mitra, P, Mulrey, K, Nelles, A, Rachen, J P, Rossetto, L, Schellart, P, Scholten, O, ter Veen, S, Thoudam, S, Trinh, T N G, Winchen, T   +16 more
core   +1 more source

MEASUREMENTS OF COSMIC-RAY PROTON AND HELIUM SPECTRA FROM THE BESS-POLAR LONG-DURATION BALLOON FLIGHTS OVER ANTARCTICA [PDF]

Astrophysical Journal, 2015
The BESS-Polar Collaboration measured the energy spectra of cosmic-ray protons and helium during two long-duration balloon flights over Antarctica in 2004 December and 2007 December at substantially different levels of solar modulation. Proton and helium
K. Abe, H. Fuke, S. Haino, T. Hams, M. Hasegawa, A. Horikoshi, A. Itazaki, K. C. Kim, T. Kumazawa, A. Kusumoto, Moo Hyun Lee, Y. Makida, S. Matsuda, Y. Matsukawa, K. Matsumoto, J. Mitchell, Z. Myers, J. Nishimura, M. Nozaki, R. Orito, J. Ormes, N. Picot-Clemente, K. Sakai, M. Sasaki, E. Seo, Y. Shikaze, R. Shinoda, R. Streitmatter, J. Suzuki, Y. Takasugi, K. Takeuchi, Ken-ichi Tanaka, N. Thakur, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura   +36 more
semanticscholar   +1 more source

Liquid directional transport surface applied to the spacecraft fluid management system: Fundamentals and prospect analysis

Droplet, EarlyView.
Based on the analysis of the existing liquid oriented transport surface under gravity, this review analyzes the feasibility of applying the liquid oriented transport surface to the spacecraft fluid management device by summarizing its transport principle and combining with the existing application environment of the spacecraft fluid management device ...
Yifan He, Wenshuai Xu, Kuo Yan, Lingling Zhao, Jun Wang, Kai Li, Jingyuan Liu, Heng Jiang   +7 more
wiley   +1 more source

Cosmic-ray propagation in molecular clouds

, 2013
Cosmic-rays constitute the main ionising and heating agent in dense, starless, molecular cloud cores. We reexamine the physical quantities necessary to determine the cosmic-ray ionisation rate (especially the cosmic ray spectrum at E < 1 GeV and the ...
A Dalgarno, A E Glassgold, A E Glassgold, A V Phelps, A W Strong, B J McCall, B J McCall, B. D. G. Chandran, C Boisanger de, C Ceccarelli, C Ceccarelli, C Cecchi-Pestellini, C J Cesarski, C Pinto, D A Neufeld, D Casadei, D Galli, E F Dishoeck van, F. F. S. Tak van der, F. F. S. Tak van der, H M Butner, I V Moskalenko, J Gonçalves, J H Black, J H Black, J M Girart, J P Williams, J Skilling, L Spitzer, M Meneguzzi, M Padovani, M Padovani, M Takayanagi, N Indriolo, P Caselli, R A Mewaldt, R Kulsrud, R Ramaty, R Ramaty, R Schlickeiser, S D Doty, S Gabici, S Hayakawa, S J Desch, S Maret, S R Federman, T E Cravens, T Hezareh, T R Geballe, T Umebayashi, T W Hartquist, T W Hartquist, W E Swartz, W R Webber, W R Webber, Y.-W. Tang, Z.-Y. Li   +56 more
core   +1 more source

A complete model of the cosmic ray spectrum and composition across the Galactic to extragalactic transition [PDF]

, 2015
We present a complete phenomenological model accounting for the evolution of the cosmic-ray spectrum and composition with energy, based on the available data over the entire spectrum.
N. Globus, D. Allard, É. Parizot
semanticscholar   +1 more source

Cosmic Rays: Studying the Origin [PDF]

arXiv, 1997
Investigations of the origin of cosmic rays are presented. Different methods are discussed: studies of cosmic gamma rays of energy from 30 MeV to about 10^15 eV (since photons point to their places of origin), studies of the mass composition of cosmic rays (because it reflects source morphology), and studies of cosmic rays with energy above 10^19 eV
arxiv  

Probing the Galactic cosmic ray flux with submillimeter and gamma ray data

, 2008
The study of Galactic diffuse $\gamma$ radiation combined with the knowledge of the distribution of the molecular hydrogen in the Galaxy offers a unique tool to probe the cosmic ray flux in the Galaxy.
A. Kawamura, F. A. Aharonian, Felix A. Aharonian, Frank Rieger, H. Yamamoto, K. Torii, S. Casanova, S. Gabici, T. Onishi, Werner Hofmann, Y. Fukui   +10 more
core   +1 more source