Results 21 to 30 of about 1,501,755 (279)
Static Observers in Curved Spaces and Non-inertial Frames in Minkowski Spacetime [PDF]
, 2010 Static observers in curved spacetimes may interpret their proper acceleration as the opposite of a local gravitational field (in the Newtonian sense).
C. Misner +26 more
core +1 more source
Covariant Uniform Acceleration [PDF]
, 2013 We show that standard Relativistic Dynamics Equation F=dp/d\tau is only partially covariant. To achieve full Lorentz covariance, we replace the four-force F by a rank 2 antisymmetric tensor acting on the four-velocity.
Barut A +20 more
core +1 more source
Growth of Rayleigh instability in a Hall thruster channel having dust in exit region
AIP Advances, 2019 In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik +2 more
doaj +1 more source
Frontiers in Pharmacology, 2021 Prevalence studies of current smoking, among hospitalized COVID-19 patients, demonstrated an unexpectedly low prevalence among patients with COVID-19. The aim of the present study was to evaluate the effect of smoke from cigarettes on ACE-2 in bronchial ...
Massimo Caruso +14 more
doaj +1 more source
Physical Review D, 2020 We present the saddle-point approximation for the effective Hamiltonian of the quantum kink in two-dimensional linear sigma models to all orders in the time-derivative expansion. We show how the effective Hamiltonian can be used to obtain semiclassical soliton form factors, valid at momentum transfers of order the soliton mass.
Ilarion V. Melnikov +2 more
openaire +2 more sources
Effect of dust on tilted electrostatic resistive instability in a Hall thruster
Journal of Theoretical and Applied Physics, 2018 Effect of negatively charged dust on resistive instability corresponding to the electrostatic wave is investigated in a Hall thruster plasma when this purely azimuthal wave is tilted and strong axial component of wave vector is developed.
Jasvendra Tyagi +2 more
doaj +1 more source
Psychological Science, 2016 How do people get attention to operate at peak efficiency in high-pressure situations? We tested the hypothesis that the general mechanism that allows this is the maintenance of multiple target representations in working and long-term memory. We recorded subjects’ event-related potentials (ERPs) indexing the working memory and long-term memory ...
Robert M G, Reinhart +2 more
openaire +3 more sources
Acceleration of particles by acceleration horizons
, 2013 We consider collision of two particles in the vicinity of the extremal acceleration horizon (charged or rotating) that includes the Bertotti-Robinson space-time and the geometry of the Kerr throat.
Zaslavskii, O. B.
core +1 more source
Performance study of a new epoxy resin IR-3 in HTS-based high-field magnet application
Materials Research Express, 2022 REBCO (Rare-earth-based barium copper oxide) conductors are appropriate materials for high-field magnet applications. Vacuum impregnation using epoxy resin is a technique widely used for stable operation of superconducting coils.
Huanli Yao +13 more
doaj +1 more source
RNA, 2015 This article considers the state of the RNA field and how it has progressed over a time span of decades.
openaire +3 more sources