Results 81 to 90 of about 2,565,021 (373)
RADIAL VELOCITY MONITORING OF KEPLER HEARTBEAT STARS [PDF]
, 2016 Heartbeat stars (HB stars) are a class of eccentric binary stars with close periastron passages. The characteristic photometric HB signal evident in their light curves is produced by a combination of tidal distortion, heating, and Doppler boosting near ...
Avi Shporer +8 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan +4 more
wiley +1 more source
Reconstructing the solar integrated radial velocity using MDI/SOHO
, 2010 Searches for exoplanets with radial velocity techniques are increasingly sensitive to stellar activity. It is therefore crucial to characterize how this activity influences radial velocity measurements in their study of the detectability of planets in ...
A.-M. Lagrange +19 more
core +3 more sources
Transactions of the International Astronomical Union, 1985 This report covers the period June 1981 to June 1984. and includes some material from IAU Colloquium No. 88, October, 1984.). The field of radial velocities has undergone a renaissance in the last few years as the new radial velocity machines have come into use. Not only can stars of much fainter magnitudes be reached, but the precision of the measured
A. G. Davis Philip +6 more
openaire +1 more source
Long-term radial-velocity variations of the Sun as a star: The HARPS view [PDF]
, 2016 Stellar radial velocities play a fundamental role in the discovery of extrasolar planets and the measurement of their physical parameters as well as in the study of stellar physical properties.
Antonino Francesco Lanza +3 more
semanticscholar +1 more source
Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy
Advanced Engineering Materials, EarlyView.An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley +1 more source
Optimisasi Waktu Tempuh Pada Multi-AGV Menggunakan Particle Swarm Optimization
Jurnal Ilmiah Teknik Industri, 2016 An algorithm for velocity planning on a continuous-curvature path of a pair of automated guided vehicles (AGVs) that minimizing its travelling time is presented. A class of 3-degree Bezier curves is used as basic form of the path.
Anugrah Kusumo Pamosoaji
doaj +1 more source
暴雨灾害, 2022 Reflectivity and Doppler velocity measurements from the new generation weather radar provide important input for the identification and early warning of severe storms and tornadoes.
Yanjiao XIAO +3 more
doaj +1 more source
Velocity and velocity bounds in static spherically symmetric metrics
, 2010 We find simple expressions for velocity of massless particles in dependence of the distance $r$ in Schwarzschild coordinates. For massive particles these expressions put an upper bound for the velocity.
Arraut, I., Batic, D., Nowakowski, M.
core +1 more source
Radial Velocity along the Voyager 1 Trajectory: The Effect of Solar Cycle [PDF]
, 2012 As Voyager 1 and Voyager 2 are approaching the heliopause (HP)—the boundary between the solar wind (SW) and the local interstellar medium (LISM)—we expect new, unknown features of the heliospheric interface to be revealed.
Borovikov, S. N. +5 more
core +1 more source