abstract background: distal radial fracture is one of the most common fractures of the skeletal system. although it has been believed to be a simple fracture with excellent outcomes, practical operations’ results have always been undesirable and even poor. the goal of this study was to compare two methods of treatment “pin and plaster and precautious pin fixation in patients with unstable extra...

In this paper, we have suggest, design, and simulate an all optical 1*2 demultiplexer (Demux) depended on Insulator-Metal-Insulator (IMI) plasmonic multilayer structure. The proposed structure offers operating wavelength at 1550 nm the design area is (350 nm* 350 nm). work, Finite Element Method (FEM) used by using COMSOL Multiphasic software (version 5.4). working principle of device (plasmoni...

This paper presents a novel device called Field Effect Photodiode (FEPD) to overcome the inherent drawbacks of PIN (PIN-PD) and control output photocurrent. Also, proposed PIN-PD can be applied as fast optical switch that provides desired ION/IOFF ratio for applications in nanoscale regime. The combines Metal Semiconductor Transistor (MESFET) regular convert incident light with photon energy gr...

In order to implement an integrated optical quantum circuit, designing waveguides based on the quantum box is of prime importance. To do this we have investigated optical waveguide both with and without optical pumping. The rate of absorption and emission using an array of AlGaAs/GaAs quantum box core/shell structure in the optical waveguide with various pumping intensities has computed. By con...

in this article, the effect of cells' radius on the behavior of wavelength switching optical filter andthe effect of the radius of the optical filters' key characteristics such as wavelength resonance onan optical filter based on photonic crystals, have been investigated. currently, the most commonapplied mechanism for designing optical filter based on photonic crystals is using twome...

Several pin configurations were tested in an attempt to improve the aero-optical environment at large look-back angles over a cylindrical turret with a flat window. When small-diameter, tall pins were placed upstream of the cylindrical turret they created a partial blockage and formed a second shear layer. The second shear layer reduced the turbulent intensity of the main shear layer, with a re...

A single-chip photocurrent-driven wavelength converter operating at 10 Gbit=s is presented. The device consists of a monolithically integrated widely tunable transmitter and an optical receiver. The transmitter consists of a sampled grating DBR laser, electroabsorption modulator and semiconductor optical amplifier (SOA). The optical receiver includes a quantum-well pin photodetector and a set o...