نتایج جستجو برای: resistive evaporation

تعداد نتایج: 31155  

Journal: :journal of ultrafine grained and nanostructured materials 2013
vahid ghafouri mohsen shariati akbar ebrahimzad

zno nanowires with a diameter of 70 nm and nanorods with a diameter in the range of 100-150 nm and two micrometer in length were grown on glass substrates by resistive evaporation method and applying a two step oxidation process at low temperatures, without using any catalyst, template or buffer layer. xrd pattern of these nanostructures indicated a good crystallinity property with wurtzite hex...

Journal: :the modares journal of electrical engineering 2011
mohammad orvatinia reza afzalzadeh faramarz hossein babaei

double layer zno/sno2 thin film resistive gas sensors were fabricated by successive pvd of those oxides onto porcelain substrates. the metallic contacts were provided by electron beam evaporation of platinum onto substrates prior to deposition of the gas sensitive layers. deposits were thermally annealed at different temperatures. it was shown that the activation energy of electrical conduction...

ZnO nanowires with a diameter of 70 nm and nanorods with a diameter in the range of 100-150 nm and two micrometer in length were grown on glass substrates by resistive evaporation method and applying a two step oxidation process at low temperatures, without using any catalyst, template or buffer layer. XRD pattern of these nanostructures indicated a good crystallinity property with wurtzite hex...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور استان مازندران - دانشکده اقتصاد 1393

در این پایان نامه از طریق معرفی برخی شاخص های اقتصادی به بررسی ابعاد اقتصاد مقاومتی به مسائل زیر پرداخته میشود: ارائه راهکار مناسب بعد از شناخت آسیب پذیری اقتصاد تحریم از زاویه و نگاه مبانی اقتصاد مقاومتی با برنامه ریزی تعاملی و ارائه مدلی در مقابل اقتصاد تحریم پرداخته شده،سپس به طراحی مدل های اقتصاد تدافعی و ضد تحریم، شناخت مبانی و راهکارهای اقتصاد مقاومتی که به همراه خود رشد اقتصادی تداوم یا...

2005
Zulfiqar Ali Akram K.S. Aqili Asghari Maqsood S. M. J. Akhtar

in the . The Two-sourced evaporation technique is used to prepare hard ZnSe films by controlling the evaporation rates o Zn and Se at substrate temperature of 400 1C. The films are doped with Cu by immersion in the Cu(NO3)2 solution for different periods of time. The XRD has not shown a drastic change in the film structure while the ele resistivity of the deposited film dropped from 10O-cm to a...

Background and Objectives:  Activities aimed at achieving the goals of the resistive economy by students who are influential groups of the country will lead to the development of society in various aspects such as socio-economic, cultural and even religious. The purpose of this study was to evaluate students' knowledge and practice in relation to resistive economics. Materials and Methods: Thi...

2000
H. Lesch

X-ray flares belong to magnetic activity phenomena that are characteristic for T-Tauri stars. The relatively strong magnetic fields of T-Tauri magnetospheres can be regarded as the primary energy source for the flares. The energy can be converted to particle acceleration and plasma heating by reconnection events in twisted flux tubes that connect the central object and the circumstellar disk. C...

2008
M. CARAMAN

Fullerenes, a new form of carbon, were discovered in 1985 [1] in graphite vaporization under inert gas at low pressure. Fullerenes have many properties different from either diamond or graphite. Potential applications include superconductors, sensors, catalysts, optical and electronic devices, polymer composites, high-energy fuels and biological and medical materials. But wide application of fu...

Journal: :CoRR 2014
Andrew J. Lohn Patrick R. Mickel Conrad D. James Matthew J. Marinella

We show that, in tantalum oxide resistive memories, activation power provides a multi-level variable for information storage that can be set and read separately from the resistance. These two state variables (resistance and activation power) can be precisely controlled in two steps: (1) the possible activation power states are selected by partially reducing resistance, then (2) a subsequent par...

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