Results 21 to 30 of about 704,600 (271)

Vaidya Spacetime in the Diagonal Coordinates

, 2017
We have analyzed the transformation from initial coordinates $(v,r)$ of the Vaidya metric with light coordinate $v$ to the most physical diagonal coordinates $(t,r)$.
Berezin, V. A., Dokuchaev, V. I., Eroshenko, Yu. N.   +2 more
core   +1 more source

Semiclassical S-matrix theory. VI. Integral expression and transformation of conventional coordinates [PDF]

, 1973
Sometimes, as in reactive systems, action‐angle variables are not conveniently defined at all points of the trajectory and recourse must be made to conventional coordinates.
Marcus, R. A.
core   +1 more source

All coordinates transformations that separate the center of mass kinetic energy, their group structure and geometry

, 2009
The most general coordinates transformations that allow for the exact separation of the kinetic energy operator of a quantum many-body system into total center of mass kinetic energy and internal kinetic energy are found and discussed.
Fortunato, Lorenzo
core   +1 more source

From angle-action to Cartesian coordinates: A key transformation for molecular dynamics

, 2008
The transformation from angle-action variables to Cartesian coordinates is a crucial step of the (semi) classical description of bimolecular collisions and photo-fragmentations.
Althorpe S., Child M. S., Goldstein H., J. Rubayo-Soneira, J.-C. Rayez, L. Bonnet, M. L. González-Martínez, P. Larrégaray, Whittaker E. T.   +8 more
core   +1 more source

On the Renormalization of the Complex Scalar Free Field Theory

, 2009
Polar coordinates are used for the complex scalar free field in D=4 dimensions. The resulting non renormalizable theory is healed by using a recently proposed symmetric subtraction procedure.
Damgaard, Ferrari, Kallosh, Kamefuchi, Quadri, Quadri, Quadri, Quadri, Quadri, Quadri, Quadri, Quadri, Ruggero Ferrari, Tyutin, Tyutin, Vilar, Weinberg   +16 more
core   +1 more source

Applying transformation parameters for 3D transformation between systems WGS 84 and RES (B) [PDF]

Acta Montanistica Slovaca, 2001
Coordinate transformation between 3D cartesian systems: the Reference Elipsoidical System for Bessel’s Ellipsoid - RES(B) (with coordinates C R(B)), and the World geodetic system – WGS 84 (with coordinates C w) are used for transformations C W→ C R(
Šadera Milan, Zemen Marián, Gašinec Juraj, Leššo Igor, Weiss Gabriel   +4 more
doaj  

Extended Fermi coordinates

, 2010
We extend the notion of Fermi coordinates to a generalized definition in which the highest orders are described by arbitrary functions. From this definition rises a formalism that naturally gives coordinate transformation formulae.
B. Coll, B. Linet, B. Léauté, C. Chicone, C. Chicone, C.W. Misner, D. Bini, E. Díaz-Miguel, E. Fermi, E. Fermi, E. Fermi, F.K. Manasse, J.L. Synge, K.P. Marzlin, L. Ó’Raifeartaigh, M. Ishii, M.C. Angonin, Marie-Christine Angonin, N. Ashby, N. Ashby, P. Collas, P. Delva, P. Tourrenc, Pacôme Delva, T. Levi-Civita, W.Q. Li, W.T. Ni, Y. Kojima   +27 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

2D affine transform parameters by Gaussian elimination with pivoting [PDF]

Archives of Civil Engineering
In many geomatics, computer vision, and computer-aided applications, coordinate transformations are needed to transform from one coordinate system to another, especially in geodesy and photogrammetry.
Tariq N. Ataiwe, Israa Hatem, Hisham M. Jawad Al Sharaa   +2 more
doaj   +1 more source

ANALYSIS OF COMMON QUALITY PROBLEMS IN COORDINATE TRANSFORMATION BETWEEN REFERENCE COORDINATE SYSTEM AND GEOCENTRIC COORDINATE SYSTEM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
In the working of the existing reference coordinate system transformed into the coordinate system of the geocentric coordinate system, many experts and scholars have in-depth research on the transformation methods such as geodetic control point results ...
X. Zhang, J. Zhang, L. Zhang, J. Liu
doaj   +1 more source