Effects of a lightly-doped-drain (LDD) implantation condition on the device characteristics of poly-Si TFT have been studied. For a LDD implantation dose of 2–4 × 1013 cm−2, no significantly large difference in on-state current and off-state leakage is found. For a LDD implantation energy of 50–100 keV, however, the higher LDD implantation energy results in smaller off-state leakage and more re...

INTRODUCTION Spontaneous recurrent pneumothorax during pregnancy is a rare condition. Few cases have been reported previously in the literature. There is no universal guideline for the management of this condition. Treatment options include conservative management with intercostal drain and surgical management in the form of thoracotomy or video-assisted thoracoscopy. CASE PRESENTATION We rep...

Over a Period of three months (summer), 108 samples of water collected from four hospitals in Tehran. They were taken from numerous potable and non-potable water, including main supply cisterns, calorifiers, hot and cold tap water, shower, cooling tower and drain of air condition system. Culturing of concentrated and non-concentrated water samples on Buffered Charcoal Yeast Extract (BCYE) Agar ...

The instability of THz plasma waves propagating along a channel field-effect transistors opens up new mechanism emission waves. In this work, we investigate the in presence quantum effects and nonideal boundary condition at source drain by using hydrodynamic model. results show that will be unstable when gate–source capacitances are larger than gate–drain increment can increased increasing or d...

in this research, the appropriateness of drainmod-n model was evaluated for the simulation of nitrate transport with subsurface drainage in paddy fields. during a canola growing season from november 2011 to april 2012, the nitrate concentration of drainage water and soil saturation extracts of two depths of 30 and 60 cm was measured in consolidated paddy fields of sari agricultural sciences and...

abstract among activities that can be used to prevent piping phenomena and reduce seepage and exit gradient are installation of cutoff wall and drain under hydraulic structures. hence in this study, to investigating the influence of each mentioned parameter on uplift force and exit gradient a computer model has developed in which general equation of fluid flow into the isotropic and anisotropic...