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pro vyhledávání: '"Z Weissman"'
Akademický článek
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Autor:
R.Z. Yahel, Z. Weissman
Publikováno v:
Computer Physics Communications. :578-582
We present a multimedia courseware for the study of communication concepts, systems and related topics. The courseware is based upon graphical objects and temporal simulation. The main pedagogical aims of the courseware are the following: (1) Enhance
Akademický článek
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Publikováno v:
Depression and anxiety. 31(2)
The literature, based on US Vietnam veterans, suggests that posttraumatic stress disorder (PTSD) is associated with increased criminal activity, especially violence, alcohol, and drug abuse, although more recent studies, which tested data from the Un
Publikováno v:
Pediatric Hematology and Oncology. 13:463-468
Dysembryoplastic neuroepithelial tumor (DNT) was first characterized in 1988 by Daumas-Duport and Scheithauer [1], who described 39 cases in children with morphologically distinct brain tumors. Partial complex seizures (PCSs), well-defined neuroimage
Autor:
I. Hendel, Z. Weissman
Publikováno v:
Journal of Lightwave Technology. 13:2053-2058
Periodically segmented waveguide (PSW) mode expanders can be realized simply, using a single step lithography. In this paper such devices are studied numerically, with respect to high-/spl Delta/ silica waveguides and InP strip waveguides. The effici
Autor:
Amos A. Hardy, Z. Weissman
Publikováno v:
Journal of Lightwave Technology. 11:1831-1838
Modal properties of periodically segmented waveguides (PSWs) are analyzed by using the beam-propagation method and coupled-mode theory. The modal effective indices in a PSW are shown to be equal to those of a continuous waveguide with an averaged Del
Publikováno v:
IEEE Journal of Quantum Electronics. 28:759-764
The authors present the formulation of a 2-D beam propagation method for weakly guiding 3-D structures. The waveguide itself may have any cross section, provided that the propagating field has a quasi-cylindrical shape. The dimensional reduction is c
Autor:
Z. Weissman, Amos A. Hardy
Publikováno v:
IEEE Journal of Quantum Electronics. 28:1848-1854
In some waveguide materials, strong second-order optical nonlinearity is accompanied by strong harmonic propagation loss, particularly due to absorption. The conversion efficiency of such waveguides can be significantly enhanced by using a distribute
Publikováno v:
Optics letters. 14(5)
The design of an efficient wide-angle dielectric optical waveguide Y-junction power divider is outlined. The method has several degrees of freedom that can be used to optimize the device's performance to achieve minimization of the radiation loss for