Results 51 to 60 of about 13,400 (188)

Triangular C² Interpolants by Piecewise Rational Functions

Chemical Engineering Transactions, 2016
In this paper a C2 interpolation scheme on a triangle is presented. The interpolant assumes given values and derivatives of orders up to 2 at the vertices of the triangle. It is made up of partial interpolants blended with weight functions.
W.B. Yu
doaj   +1 more source

On the size of lattice simplices with a single interior lattice point

, 2012
Let $\mathcal{T}^d(1)$ be the set of all $d$-dimensional simplices $T$ in $\real^d$ with integer vertices and a single integer point in the interior of $T$.
Averkov, Gennadiy
core   +1 more source

The Gergonne point generalized through convex coordinates

International Journal of Mathematics and Mathematical Sciences, 1999
The Gergonne point of a triangle is the point at which the three cevians to the points of tangency between the incircle and the sides of the triangle are concurrent.
J. N. Boyd, P. N. Raychowdhury
doaj   +1 more source

Gravimagnetic effect of the barycentric motion of the Sun and determination of the post-Newtonian parameter gamma in the Cassini experiment

, 2007
The most precise test of the post-Newtonian gamma parameter in the solar system has been achieved in measurement of the frequency shift of radio waves to and from the Cassini spacecraft as they passed near the Sun.
A.G. Polnarev, Bailey, Beck, Bertotti, Bertotti, Brumberg, Ciufolini, Dittus, G. Schäfer, I.Yu. Vlasov, Klioner, Kopeikin, Kopeikin, Kopeikin, Kopeikin, Kopeikin, Kopeikin, Kopeikin, Misner, Moyer, Ni, Richter, S.M. Kopeikin, Shao, Shapiro, Soffel, Turyshev, Will   +27 more
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A New Concept of PWM Duty Cycle Computation Using the Barycentric Coordinates in a Three–Dimensional Voltage Vectors Arrangement

IEEE Access, 2020
The paper presents a novel approach to the Pulse Width Modulation (PWM) duty cycle computing for complex or irregular voltage vector arrangements in the two (2D) and three-dimensional (3D) Cartesian coordinate systems.
Pawel Szczepankowski, Nikolai Poliakov, Denis Vertegel, Krzysztof Jakub Szwarc, Ryszard Strzelecki   +4 more
doaj   +1 more source

The effect of the motion of the Sun on the light-time in interplanetary relativistic experiments

, 2008
In 2002 a measurement of the effect of solar gravity upon the phase of coherent microwave beams passing near the Sun has been carried out with the Cassini mission, allowing a very accurate measurement of the PPN parameter $\gamma$.
B Bertotti, Bertotti B, Bertotti B, Eddington A, L Iess, Landau L D, Mignard F, Moyer T D, N Ashby, Ni W-T, Ni W-T, Ni W-T, Ni W-T, Soffel M, Turyshev S G, Turyshev S G, Will C M   +16 more
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PEXO : a global modeling framework for nanosecond timing, microsecond astrometry, and μm/s radial velocities [PDF]

, 2019
54 pages, 2 tables, 19 figures, accepted for publication in ApJS, PEXO is available at https://github.com/phillippro/pexoThe ability to make independent detections of the signatures of exoplanets with complementary telescopes and instruments brings a new
Alan P. Boss, Arzoumanian Z., Auer L. H., Beichman C., Catanzarite J., Catanzarite J. H., Damour T., Eastman J., Eastman J., ESA (ed), Event Horizon Telescope Collaboration, Fabian A. C., Fabo Feng, Feng F., Folkner W. M., Folkner W. M., Folkner W. M., Fomalont E. B., Fomalont E. B., Gubler J., Guillem Anglada-Escudé, Hohenkerk C., Holczer T., Hugh R. A. Jones, Irwin A. W., Johns-Krull C. M., Jordán A., Kjeldsen H., Klioner S. A., Klioner S. A., Kopeikin S. M., Kopeikin S. M., Kopeikin S. M., Lelli F., Maksym Lisogorskyi, Mamajek E. E., Mangum J. G., McCarthy D. D., Mignard F., Miralda-Escudé J., Misner C. W., Moe M., Murray C. D., Perryman M., Petit G., Petit G. ed Finkelstein A., Plavchan P., Pourbaix D., Psaltis D. ed Kaaret P., R. Paul Butler, Rüeger J., Sana H., Sergei M. Kopeikin, Standish E., Standish E. M., Thiele T. N., Unwin S. C., Viswanathan V., Weisberg J. M., Wex N., Winn J. N., Wright J. T., Zhao L.   +62 more
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Barycentric coordinates for convex sets [PDF]

Advances in Computational Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Warren, Joe, Schaefer, Scott, Hirani, Anil N., Desbrun, Mathieu   +3 more
openaire   +1 more source

About application the barycentric method in the numerical solution of internal problem of electrodynamics

Физика волновых процессов и радиотехнические системы, 2018
The main features of the application of the barycentric method in the numerical solution internal problem of electrodynamics with the allocation of the limitations of the method and its main stages are considered in the article.
I.S. Polyanskii
doaj  

THE INFLUENCE OF THE GRAVITATIONAL PERTURBATIONS OF THE SOLAR SYSTEM PLANETS ON THE EVOLUTION OF THEIR ORBITS’ ECCENTRICITIES AND INCLINATIONS

Российский технологический журнал, 2017
In the paper the classic problem of N bodies is treated as if the mass of one body (the Sun) is much larger than the mass of the rest mutually gravitating bodies. We take as the unperturbed motion the movement of a planet in an elliptical orbit, with the
N. A. Akulova, L. A. Buznikova, A. V. Shatina   +2 more
doaj   +1 more source