Results 51 to 60 of about 134,702 (277)
Fermi-normal, optical, and wave-synchronous coordinates for spacetime with a plane gravitational wave [PDF]
, 2014 Fermi normal coordinates provide a standardized way to describe the effects of gravitation from the point of view of an inertial observer. These coordinates have always been introduced via perturbation expansions and were usually limited to distances ...
Rakhmanov, Malik
core +3 more sources
A synchronous surround increases the motion strength gain of motion
Journal of Vision, 2013 Coherent motion detection is greatly enhanced by the synchronous presentation of a static surround (Linares, Motoyoshi, & Nishida, 2012). To further understand this contextual enhancement, here we measured the sensitivity to discriminate motion strength for several pedestal strengths with and without a surround.
Daniel, Linares, Shin'ya, Nishida
openaire +2 more sources
Linearized mathematical model of synchronous motor with various methods of speed control
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2008 Various methods of synchronous motor speed control are considered. Differential equations and structures of synchronous motor being the object with various methods of control are presented.
V. A. Starikov +2 more
doaj +1 more source
Synchronization of Four Axisymmetrically Distributed Eccentric Rotors in a Vibration System
Machines, 2022 This paper studies synchronization of a class of even pairs and symmetrically distributed eccentric rotors in a vibration system of a single mass body.
Xiaozhe Chen +3 more
doaj +1 more source
Spin-orbit coupling and chaotic rotation for coorbital bodies in quasi-circular orbits
, 2013 Coorbital bodies are observed around the Sun sharing their orbits with the planets, but also in some pairs of satellites around Saturn. The existence of coorbital planets around other stars has also been proposed. For close-in planets and satellites, the
Correia, Alexandre C. M. +1 more
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Evolution of space debris for spacecraft in the Sun-synchronous orbit
Open Astronomy, 2020 In this paper, the evolution of space debris for spacecraft in the Sun-Synchronous orbit has been investigated. The impact motion, the evolution of debris from the Sun-Synchronous orbit, as well as the evolution of debris clouds from the quasi-Sun ...
Jiang Yu, Li Hengnian, Yang Yue
doaj +1 more source
Synchronous motion in the Kinoshita problem [PDF]
Astronomy & Astrophysics, 2005 A Lie-Poisson integrator with Wisdom-Holman type splitting is constructed for the problem of a rigid body and a sphere (the Kinoshita problem). The algorithm propagates not only the position, momentum and angular momentum vector of the system, but also the tangent vector of "infinitesimal displacements".
S. Breiter +3 more
openaire +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
A newly conceived cylinder measuring machine and methods that eliminate the spindle errors [PDF]
, 2012 Advanced manufacturing processes require improving dimensional metrology applications to reach a nanometric accuracy level. Such measurements may be carried out using conventional highly accurate roundness measuring machines.
DAMAK, Mohamed +4 more
core +5 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source