نتایج جستجو برای: buttiker formalism

تعداد نتایج: 35516  

مردانی, طهماسب, مردانی, محمد,

In this study, we derive analytically Green’s function (GF) formalism to calculate the electrical conductance for an armchair SWCNT in the ballistic regime. We obtain an exact analytical formula for the conductance of the SWCNT, in the tight-binding approach and assuming nearest-neighbor interaction by recursion process in the GF formalism. We show that in the presence of uniform external poten...

آقامیری اصفهانی, شریفه , صداقت‌نیا, مریم ,

In this research, we have investigated the effect of increasing length on the electronic transport of an armchair graphene nano-ribbons with nitrogen atom impurity and without impurity. The semi-infinite, one-dimensional molecular systems are connected to two electrodes and the electron-electron interaction is ignored. The system is described by a simple tight binding model. All calculations ar...

Journal: :إضاءت نقدیه فی الأدبین العربی و الفارسی 0
علی کنجیان خناری أستاذ مشارک بجامعة العلامة الطباطبائی، طهران، إیران قاسم عزیزی مراد طالب دکتوراه بجامعة العلامة الطباطبائی، طهران، إیران

form-centered reading is a trend which has existed among muslim critics long ago and been reflected further as “formalist” in modern era. such type of view about a textinvestigates it as a linguistic innovation. from formalists' point of view, a literary text contains a fundamental elementcalled text literature which a literate can achieve it through different mechanisms which itself gives...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1387

چکیده ندارد.

Journal: :Journal of Statistical Physics 2012

Ali Soleimani Meigooni Amir Mehdizadeh Mohammad Hosein Sadeghi, Reza Faghihi, Sedigheh Sina,

Introduction: The use of long-half-life Cobalt source instead of iridium source will be very helpful in HDR brachytherapy for treatment of cervical cancer. The aim of this study was compared the treatment time with cobalt and iridium source in brachytherapy for treatment of cervical cancer using Tandem-ovoid applicator. Materials and Methods: In this study, 19...

Journal: :CoRR 2016
Ying Huang Hong Zheng Haibin Ling Erik Blasch Hao Yang

Bird strikes present a huge risk for aircraft, especially since traditional airport bird surveillance is mainly dependent on inefficient human observation. Computer vision based technology has been proposed to automatically detect birds, determine bird flying trajectories, and predict aircraft takeoff delays. However, the characteristics of bird flight using imagery and the performance of exist...

2013
Maria Elvira De Caroli Rossella Falanga Elisabetta Sagone

This study analyzed subtle and blatant prejudice toward Chinese people expressed by 276 Italian adolescents and young adults, with and without friends from other ethnic groups. Italian version of Subtle and Blatant Prejudice Scale referred to Chinese people (Pettigrew & Meertens, 1995; Manganelli Rattazzi & Volpato, 2001) and three Semantic Differentials (Falanga et al., 2010) to analyze the re...

2008
Shanhui Xiong

The duality in the Chalker-Coddington network model is examined. We are able to write down a duality relation for the edge state transmission coefficient, but only for a specific symmetric Hall geometry. Looking for broader implication of the duality, we calculate the transmission coefficient T in terms of the conductivity σxx and σxy in the diffusive limit. The edge state scattering problem is...

فیض‌آبادی, سیدادریس, کارگر, زینب,

  In this paper, the uniaxial strain effect on the electronic properties of (6,6) finite armchair carbon nanotube was investigated by using the Green function technique and Landure-Buttiker formula. It was found that, in (6,6) finite carbon nanotube with 3q and 3q+1 length, where q is a certain integer, the current was induced by the application of a suitable tensile strain and compressive stra...

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