in this paper, a photonic crystal waveguide with point defects and lattice constant perturbations of +5%, -5% are being investigated. firstly waveguide structures with constant and specific parameters are being studied and photonic band gap diagrams for te/tm modes are depicted; then pulse propagation in the frequencies available in the band gap are shown. after that, effects of parameters like...

—A system for measuring the dielectric properties of cereal grains from 1 to 350 MHz with a coaxial sample holder is presented. A signal-flow graph model was used to determine the permittivity of several polar alcohols from the full two-port S-parameter measurements. At the lowest frequencies 1-25 MHz where the phase measurements are less accurate, a lumped-parameter model was used to predict t...

theory Constant flux (CF) states describe the steady state response of a photonic medium with an arbitrary, possibly frequency dependent index of refraction n(x, ω) to a harmonically oscillating source. CF states were initially introduced to describe steady state oscillations of complex lasers. Here we describe their application to various phenomena in photonics and quantum optics.

We consider an exponentially stable closed loop interconnection of a continuous linear plant and a continuous linear controller, and we study the problem of interconnecting the plant output to the controller input through a digital channel. We propose a family of “transmission-lazy” sensors whose goal is to transmit the measured plant output information as little as possible while preserving cl...

• In a paper read before the Chelsea Clinical Society on March 19, 1912, Binthoven stated that a string galvanometer, with a deflecting time of 0.01 sec./mm. when standardized in the usual manner, was adequate to record the form and dimensions of the electrocardiogram.* He further stated that if the string could be made 10 or 100 times faster, the sensitivity remaining constant, no perceptible ...

[1] We have examined residual magnetic field vectors observed in Saturn’s magnetosphere during the first 2 years of the Cassini mission and have fit them to a simple axisymmetric model of the ring current in the middle magnetosphere. We then examine the variations of the ring current parameters with size of the magnetosphere. In addition, we obtain secondary parameters, including the value of t...

In this paper, using a simulation and modelling technique, the other cells interferences factor is obtained and compared with previous upper bounds. The effect of propagation parameters on other cells interferences is investigated. Two scenarios are studied, when the mobile chooses the nearest base station and when it chooses the least attenuation base station. The results indicate that that th...

This paper firstly recalls the parameters that need to be known in order to develop and apply a general methodology for the dimensioning of continuously variable V-belt transmissions. A description of the experimental system object of this paper is then provided, which permits the testing of CVT transmissions in the most wide-ranging operating conditions, making it possible to measure numerous ...

We extend the homogeneous model for the synchrotron emission from plerions to allow more realistic predictions of the surface brightness distribution at different frequencies. Abandoning the assumption of a uniform particle distribution, we assume that particles are injected into the synchrotron nebula only in the vicinity of the pulsar. Their distribution is then determined by MHD propagation ...

We extend the homogeneous model for the synchrotron emission from plerions to allow more realistic predictions of the surface brightness distribution at different frequencies. Abandoning the assumption of a uniform particle distribution, we assume that particles are injected into the synchrotron nebula only in the vicinity of the pulsar. Their distribution is then determined by MHD propagation ...