نتایج جستجو برای: rectangular apertures
تعداد نتایج: 25150 فیلتر نتایج به سال:
A full-wave analysis of an inhomogeneous waveguide region with both planar and circular cylindrical boundaries is presented in this paper. Circular cylindrical modal functions are used to represent the fields. Field matching on the planar walls and apertures is rigorously achieved by the finite plane-wave series expansion of each modal field, whereas the addition theorem for cylindrical waves i...
We study the role of optical momenta in surface plasmon excitation by topological bi-gratings. analyze plasmonic structures composed rectangular apertures rotating 2D space with given rates, which couple to specific trajectories. experimentally demonstrate control propagation through premeditated design gratings, interact linear, spin, and orbital angular momentum light. show that these traject...
Anatomic ACL reconstruction is the reasonable approach to restore stability without loss of motion after ACL tear. To mimic the normal ACL like a ribbon, our preferred procedures is the anatomic rectangular tunnel (ART) technique with a bone-patellar tendon-bone (BTB) graft or the anatomic triple bundle (ATB) procedure with a hamstring (HS) tendon graft. It is important to create tunnel apertur...
The article considers the issue of increasing spatial resolution during registration digital holograms. In practice, discretization is carried out by measuring signal samples using sensors with a certain finite aperture. determined size aperture area over which averaging takes place. enhancement method based on sampling equation for signals obtained subpixel shift generalized functions. A value...
Thanks to Doris Wagner for help with the documentation. Also thanks to: Julien Cubizolles.
We consider a matrix decomposition problem arising in Intensity Modulated Radiation Therapy (IMRT). The problem input is a matrix of intensity values that are to be delivered to a patient via IMRT from some given angle, under the condition that the IMRT device can only deliver radiation in rectangular shapes. This paper studies the problem of minimizing the number of rectangles (and their assoc...
Pollen morphology of 18 species from the genus Impatiens collected different localities in Nilgiris, Tamil Nadu was evaluated using scanning electron microscopy (SEM) during period February 2017 to November 2019. From observation pollen it found be structurally monad; prolate, sub-prolate and prolate-spheroidal equatorial view; circular, rectangular, triangular, quinquangular, elliptic quadrangu...
An analytical formulation has been developed to evaluate the shielding effectiveness (SE) of two coplanar rectangular metallic enclosures with a circular aperture excited by an internal electric dipole source. The formulation consists of three parts: First, the near-field electromagnetic interference (EMI) of the electromagnetic leakage from the aperture is represented by the electric dipole in...
Advances in the fundamentals and applications of diffraction gratings have received much attention. However, conventional diffraction gratings often suffer from higher-order diffraction contamination. Here, we introduce a simple and compact single optical element, named inclined rectangular aperture gratings (IRAG), for quasi suppression of higher-order diffractions. We show, both in the visibl...
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