Results 71 to 80 of about 1,511 (175)

Estimating conformational landscapes from Cryo-EM particles by 3D Zernike polynomials. [PDF]

open access: yesNat Commun, 2023
Herreros D   +9 more
europepmc   +1 more source

Implementation on Optical-Mechanical Interface in Mechanical/Optical Integrated Analysis

open access: yes工程科学与技术, 2009
:In order to make data communicate mutully between optical software and FEA software,data processing and transformation algorithm between optical and mechanical analyses were given in optical-mechanical system.
shijianliang, 任戈
doaj  

Approximating deformation fields for the analysis of continuous heterogeneity of biological macromolecules by 3D Zernike polynomials. [PDF]

open access: yesIUCrJ, 2021
Herreros D   +10 more
europepmc   +1 more source

A Closed-Form Analytical Conversion between Zernike and Gatinel–Malet Basis Polynomials to Present Relevant Aberrations in Ophthalmology and Refractive Surgery

open access: yesPhotonics
The Zernike representation of wavefronts interlinks low- and high-order aberrations, which may result in imprecise clinical estimates. Recently, the Gatinel–Malet wavefront representation has been introduced to resolve this problem by deriving a new ...
Masoud Mehrjoo   +3 more
doaj   +1 more source

Effect of Surface Error Distribution and Aberration on Electromagnetic Performance of a Reflector Antenna

open access: yesInternational Journal of Antennas and Propagation, 2019
In this paper, a method based on the Zernike distribution and the optical aberration is proposed to investigate the effects of the distribution characteristics of surface distortions of a reflector antenna on its electromagnetic performance (EMP).
Binbin Xiang, Congsi Wang, Peiyuan Lian
doaj   +1 more source

Visualization of wavefront aberrations by Zernike polynomials

open access: yesJournal of the European Optical Society-Rapid Publications
Zernike aberration coefficients are typically presented in tabular form or as simple bar graphs, making it difficult to intuitively interpret their meaning and relate them to the specific aberration term.
Reichelt Stephan
doaj   +1 more source

WFST Astrometric Calibration. I. Modeling Global Geometric Distortion with Zernike Polynomials

open access: yesThe Astronomical Journal
Accurate modeling of geometric distortion (GD) is essential for precise astrometric calibration in wide-field imaging surveys. We present a self-calibration method based on Zernike polynomials, applied to imaging data from the Wide Field Survey Telescope
Chao Yang   +23 more
doaj   +1 more source

Generalized Zernike or disc polynomials

open access: yesJournal of Computational and Applied Mathematics, 2005
The paper is devoted to the study of the generalized Zernike or disc polynomials, which are orthogonal 2D polynomials on the unit disc and can be expressed by Jacobi polynomials of transformed arguments. Two differential equations, a first-order and a second-order one with a certain degree of freedom, and the operators of lowering and raising of the ...
openaire   +2 more sources

Multi-order combined diffractive optical elements for identification of different-magnitude wave aberrations

open access: yesКомпьютерная оптика
In this article, multi-order combined diffractive optical elements (DOEs) matched with a set of wave aberrations and Zernike polynomials are proposed and developed.
P.A. Khorin, A.P. Dzyuba, S.N. Khonina
doaj   +1 more source

Home - About - Disclaimer - Privacy