Parallelized Natural Extension Reference Frame: Parallelized Conversion from Internal to Cartesian Coordinates
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Computational Chemistry"
DOI: 10.1002/jcc.25772
Abstract: The conversion of polymer parameterization from internal coordinates (bond lengths, angles, and torsions) to Cartesian coordinates is a fundamental task in molecular modeling, often performed using the natural extension reference frame (NeRF) algorithm. NeRF can… read more here.
Keywords: natural extension; extension reference; conversion; cartesian coordinates ... See more keywords
Upgraded modelling for the determination of centre of mass corrections of geodetic SLR satellites: impact on key parameters of the terrestrial reference frame
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Geodesy"
DOI: 10.1007/s00190-019-01315-0
Abstract: We present improved modelling to compute centre of mass (CoM) offsets for spherical geodetic satellites and derive new values for the spacecraft LAGEOS, LAGEOS-2, Etalon-1/2, Starlette, Stella, LARES, and Ajisai for all system configurations of… read more here.
Keywords: terrestrial reference; reference frame; centre mass; network ... See more keywords
Number of revolutions of a particle around a black hole: Is it infinite or finite?
Sign Up to like & getrecommendations! Published in 2017 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-017-2333-5
Abstract: We consider a particle falling into a rotating black hole. Such a particle makes an infinite number of revolutions n from the viewpoint of a remote observer who uses the Boyer–Lindquist type of coordinates. We… read more here.
Keywords: black hole; reference frame; number revolutions; hole infinite ... See more keywords
Nonlinear analysis of the synchronous reference frame phase-locked loop under unbalanced grid voltage
Sign Up to like & getrecommendations! Published in 2024 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-024-09532-9
Abstract: The synchronous reference frame phase-locked loop (SRF-PLL), also called dqPLL, is an electric circuit commonly used in power electronics to estimate the phase angle of a three-phase AC grid. If the voltage is unbalanced, the… read more here.
Keywords: reference frame; analysis; frame phase; phase locked ... See more keywords
DQ-reference-frame based impedance and power control design of islanded parallel voltage source converters for integration of distributed energy resources
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2018.10.017
Abstract: Abstract This paper investigates dq-reference-frame (dq-RF) self and cross-coupling output impedances of the islanded voltage source converter (VSC), by considering the controller impacts. The dq-RF impedances for the closed-loop system are designed to exhibit the… read more here.
Keywords: voltage source; control; impedance; power ... See more keywords
Long-Term GNSS Analysis for Local Geodetic Datum After 2011 Tohoku Earthquake
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Navigation"
DOI: 10.1017/s0373463317000595
Abstract: The current Korean national geodetic reference frame, KGD2002, refers to the fixed epoch at 2002·0 under the assumption that there is no crustal movement of the Korean peninsula. A discontinuity in the coordinates of the… read more here.
Keywords: tohoku earthquake; 2011 tohoku; local geodetic; geodetic datum ... See more keywords
Transference Number in Polymer Electrolytes: Mind the Reference-Frame Gap
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c02389
Abstract: The transport coefficients, in particular the transference number, of electrolyte solutions are important design parameters for electrochemical energy storage devices. The recent observation of negative transference numbers in PEO–LiTFSI under certain conditions has generated much… read more here.
Keywords: transference; transference number; reference frame;
InSAR‐Derived Horizontal Velocities in a Global Reference Frame
Sign Up to like & getrecommendations! Published in 2023 at "Geophysical Research Letters"
DOI: 10.1029/2022gl101173
Abstract: Interferometric Synthetic Aperture Radar is used to measure deformation rates over continents to constrain tectonic processes. The resulting velocity measurements are only relative, however, due to unknown integer ambiguities introduced during propagation of the signal… read more here.
Keywords: derived horizontal; insar derived; reference frame; global reference ... See more keywords
Quantum mechanics and the covariance of physical laws in quantum reference frames
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-018-08155-0
Abstract: In physics, every observation is made with respect to a frame of reference. Although reference frames are usually not considered as degrees of freedom, in all practical situations it is a physical system which constitutes… read more here.
Keywords: reference frames; quantum reference; frame; reference ... See more keywords
A persistent prefrontal reference frame across time and task rules
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-024-46350-4
Abstract: Behavior can be remarkably consistent, even over extended time periods, yet whether this is reflected in stable or ‘drifting’ neuronal responses to task features remains controversial. Here, we find a persistently active ensemble of neurons… read more here.
Keywords: task; across time; reference frame; time ... See more keywords
Identifying a distractor produces object-based inhibition in an allocentric reference frame for saccade planning
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-68734-8
Abstract: We investigated whether distractor inhibition occurs relative to the target or fixation in a perceptual decision-making task using a purely saccadic response. Previous research has shown that during the process of discriminating a target from… read more here.
Keywords: reference frame; inhibition; target; distractor ... See more keywords