radius-of-curvatureedge sensorsactive opticsA system which estimates the global radius of curvature (GRoC) and corrects for changes in GRoC on a segmented primary mirror has been developed for and verified on McDonald Observatory's Hobby Eberly Telescope (HET). The GRoC estimation and control ...
The curve of rail is interpolated and the radius of curvature is determined. Discussions on the radius of rail curve and the speed of train for the failure are done. Finally, the animation is implemented by using the MATLAB and the Mathematica software. Not only theoretical derivation for the...
straight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line" geodesic, geodesic line - (mathematics) the shortest line between two points on a mathematically defined surface (as a straight...
John Rakoczy et al., “Global Radius-of-Curvature Estimation and Control for the Hobby-Eberly Telescope,” Proceedings of the SPIE, 4837-79 ed., p. 681-692, (Aug. 22, 2002). Primary Examiner: PUNNOOSE, ROY M Attorney, Agent or Firm: ...
The currently utilized technique for planning refractive surgery assumes that the human eye is a spherical globe of a certain radius of curvature r1, as depicted in FIG. 4A. To correct refractive errors, a spherical globe of lesser or greater curvature is targeted to achieve the ideal patient ...
Global radius of curvature estimation and control for the Hobby Eberly Telescope[J].Proceedings of SPIE(S0277-786X) 2003,4837.John Rakoczy, Drew Hall, William Ly, et al. Global radius of curvature estimation and control for the Hobby Eberly Telescope [J]. Proceedings of SPIE(S0277-786X)...
Discussions on the radius of rail curve and the speed of train for the failure are done. Finally, the animation is implemented by using the MATLAB and the Mathematica software. Not only theoretical derivation for the curvature of a curve but also its real application to rail engineering is ...
We analyze the radius of curvature of Bessel Gaussian (BG) and modified Bessel Gaussian (mBG) beams. The study is based on the results of analytic derivation as well as those of the random phase screen approach. Our results are displayed in graphs as variations of radius of curvature against...
I utilise the Big Bounce theory to tune the initial conditions of the curvature density, and to avoid the Big Bang singularity and inflationary constraints. The mathematical derivation of a positively curved universe governed by only gravity revealed horizon solutions. Although the positive horizon is...
On the basis of the above research and the semi-experimental modified Preston equation obtained from the combination method of experimental and theoretical derivation, the material removal model of the convex surface considering the influence of the curvature radius in the bonnet polishing is established...