Results 51 to 60 of about 16,387 (222)
Thermodynamical aspects of running vacuum models [PDF]
The thermal history of a large class of running vacuum models in which the effective cosmological term is described by a truncated power series of the Hubble rate, whose dominant term is $\Lambda (H) \propto H^{n+2}$, is discussed in detail. Specifically,
Basilakos, Spyros +2 more
core +2 more sources
Studie se věnuje souboru kamnářské keramiky, který byl objeven při záchranném výzkumu na hradě Kost (Čechy). Kolekce je tvořena zlomky baňkovitých kachlů s prodlouženým hrdlem, které se vyznačují aplikací zelené glazury a specifickou keramickou hmotou ...
Pavel Drnovský, Jiří Unger
doaj +1 more source
Field Cooled Annular Josephson Tunnel Junctions
We investigate the physics of planar annular Josephson tunnel junctions quenched through their transition temperature in the presence of an external magnetic field.
Koshelets, Valery P. +2 more
core +1 more source
Gamma-ray bursters as sources of cosmic rays [PDF]
The little we do know of the physical conditions in gamma-ray bursters makes them conducive to the acceleration of high-energy cosmic rays, especially if they are at cosmological distances.
Milgrom, Mordehai, Usov, Vladimir
core +3 more sources
The National Cultural Monument of the Pustý hrad castle in Zvolen towers majestically on a hill at the south edge of the town of Zvolen, in the heart of Slovakia. The interest in research into this site goes back to the 18th century.
Noémi Beljak-Pažinová, J. Beljak
semanticscholar +1 more source
Turning Around the Sphaleron Bound: Electroweak Baryogenesis in an Alternative Post-inflationary Cosmology [PDF]
The usual sphaleron bound and the statement of the impossibility of baryon production at a second order phase transition or analytic cross-over are reformulated in the first part of the paper as requirements of the expansion rate of the Universe at the ...
A. B. Burd +76 more
core +4 more sources
Elliptical Ring Antenna Excited by Circular Disc Monopole for UWB Communications
This research proposes a compact elliptical ring antenna excited by a circular disc monopole (CDM) for ultra-wideband (UWB) communications. In the study, time- and frequency-domain pulse distortions of the antenna in the transmission mode were ...
Krittaya Nakprasit +2 more
doaj +1 more source
Comment on "Kinetic decoupling of WIMPs: Analytic expressions" [PDF]
Visinelli and Gondolo (2015, hereafter VG15) derived analytic expressions for the evolution of the dark matter temperature in a generic cosmological model. They then calculated the dark matter kinetic decoupling temperature $T_{\mathrm{kd}}$ and compared
Erickcek, Adrienne L. +1 more
core +3 more sources
Modelling of Data Communication over Medium-Voltage Power Distribution Lines
The paper is dedicated to different topologies of medium-voltage power distribution lines with respect to their properties influencing the transmission of communication signals.
Jaromir Hrad, Jiri Vodrazka
doaj +1 more source
Quintessential Affleck-Dine baryogenesis with non-minimal couplings
We present a novel Affleck-Dine scenario for the generation of the observed baryon asymmetry of the Universe based on the non-trivial interplay between quintessential inflationary models containing a kinetic dominated post-inflationary era and a non ...
Bettoni, Dario, Rubio, Javier
core +1 more source

