Results 31 to 40 of about 382,834 (345)

Cryogenic Systems for Astronomical Research in the Special Astrophysical Observatory of the Russian Academy of Sciences

Photonics, 2023
This article presents the main results and new plans for the development of receivers which are cooled cryogenically to deep cryogenic temperatures and used in optical and radio astronomy research at the Special Astrophysical Observatory of the Russian ...
Yurii Balega, Oleg Bolshakov, Aleksandr Chernikov, Valerian Edelman, Aleksandr Eliseev, Eduard Emelyanov, Aleksandra Gunbina, Artem Krasilnikov, Ilya Lesnov, Mariya Mansfeld, Sergey Markelov, Mariya Markina, Guram Mitiani, Evgenii Pevzner, Nickolay Tyatushkin, Gennady Valyavin, Anton Vdovin, Vyacheslav Vdovin   +17 more
doaj   +1 more source

On the escape of cosmic rays from radio galaxy cocoons [PDF]

, 2002
(Abridged) A model for the escape of CR particles from radio galaxy cocoons is presented here. It is assumed that the radio cocoon is poorly magnetically connected to the environment.
Bieber, Brunetti, Cesarsky, Cesarsky, Chandran, Chandran, Churazov, Dennison, Duffy, Enßlin, Enßlin, Enßlin, Enßlin, Felice, Furlanetto, Giacalone, Giovannini, Goldreich, Hasselmann, Heinz, Holman, Jokipii, Jokipii, Jones, Klepach, Kulsrud, Laing, Laing, Michalek, Michalek, Michalek, Miniati, Mohr, Narayan, Quilis, Rechester, Schlickeiser, Schlickeiser, Schuecker, Skilling, Skilling, Slee, Soker, Spangler, Sridhar, T. A. Enßlin, Tademaru, Wentzel, Wentzel   +48 more
core   +2 more sources

Interaction of suprathermal solar wind electron fluxes with sheared whistler waves: fan instability [PDF]

Annales Geophysicae, 2003
Several in situ measurements performed in the solar wind evidenced that solar type III radio bursts were some-times associated with locally excited Langmuir waves, high-energy electron fluxes and low-frequency electrostatic and electromagnetic ...
C. Krafft, A. Volokitin
doaj   +1 more source

The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts

The Astrophysical Journal Letters, 2023
The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities where the parent wave decays into slow mode waves giving rise to density ...
Chaitanya Prasad Sishtla, Immanuel Christopher Jebaraj, Jens Pomoell, Norbert Magyar, Marc Pulupa, Emilia Kilpua, Stuart D. Bale   +6 more
doaj   +1 more source

Radiofrequency pulse modulation of the penile dorsal nerve for the treatment of premature ejaculation: evaluation of effectiveness

Вестник урологии, 2023
Introduction.  Premature ejaculation (PE) is the second most common male sexual dysfunction with a significant negative impact on quality of life. A significant number of conservative and surgical methods for the treatment of PE are proposed, but their ...
Ya. B. Mirkin, A. A. Nevskiy, A. A. Levkovskiy, G. A. Shirshov   +3 more
doaj   +1 more source

Wavelet analysis of the LF radio signals collected by the European VLF/LF network from July 2009 to April 2011 [PDF]

, 2012
In 2008, a radio receiver that works in very low frequency (VLF; 20-60 kHz) and LF (150-300 kHz) bands was developed by an Italian factory. The receiver can monitor 10 frequencies distributed in these bands, with the measurement for each of them of the ...
Arabelos, D.N., Bezzeghoud, M., Biagi, F., Buyuksarac, A., Contadakis, M.E., Ermini, A., Ligonzo, T., Maggipinto, T., Moldovan, A.S., Moldovan, I.A., Righetti, F., Schiavulli, L., Silva, H.G., Xenos, T.   +13 more
core   +2 more sources

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Probing electromagnetic wave energy with an in-series assembly of thermoelectric devices

AIP Advances, 2022
We study the interaction of radio waves, microwaves, and infrared laser light of power P and period τ with a macroscopic thermoelectric (TEC) device-based detector and probe the energy Pτ as being the energy of these electromagnetic (EM) waves.
R. Joseph Rybarczyk, Alexandria E. D. Federick, Oleksandr Kokhan, Ryan Luckay, Giovanna Scarel   +4 more
doaj   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source