نتایج جستجو برای: نانوسیم al
تعداد نتایج: 443316 فیلتر نتایج به سال:
from the antiquity, muslim scholars have always been interested in working on the hadiths(talks) of the prophet mohammad (pbuh). since then, the hadiths, in all fields, especially in fields of health and medicine, have attracted the attention of many scholars, leading to the publication of a number of books on hadiths as well as the collection of hadiths, including those related to health. the ...
بعد از کشف نانولوله های کربنی، توجه زیادی به سمت تحقیق در مورد ساخت و مشخصه یابی نانوساختارهای یک بعدی از مواد دیگر به خصوص zno و دیگر نیمه رساناهای با گاف انرژی پهن جلب شده است. در سالهای اخیر تحقیقات درباره ی نیمه رساناهای با گاف انرژی پهن گسترش قابل ملاحظه ای، به خاطر کاربردهای وسیع آنها در اپتوالکترونیک و انرژی خورشیدی، پیدا کرده است. البته نانوساختارهای یک بعدی مثل نانوسیم ها به جهت هدایت ...
به علت خصوصیات ویژه ای است که در نانو ساختارها وجود دارد در سالهای اخیر خواص مختلف فیزیکی مواد در این مقیاس مورد توجه دانشمندان قرار گرفته است. مواد در ابعاد نانو به شکل های گوناگونی ساخته می شوند مانند نانو لوله ها، نانو زنجیرها، نانو میله ها، نانو سیم ها و غیره. یکی دیگر از انواع نانوساختارها، نانوسیم ها هستند که خواص غیر قابل پیش بینی از خود نشان می دهند. نانوسیم ها موادی هستند که در یک بعد ...
abstract satire is one of the methods of expressing in literature that is used in two ways of direct and indirect. among these two methods, the second one is used more by the poets and writers because it helps them escaping from being face to face with the governments and their organizations. concerning the iraqi government and its cruel policies on those days, using first kind of satire was pr...
methodology of islamic principles (‘ilm al-uṣūl) is a dignified science serving to understand religious texts; on the other hand, however, this science is indebted to holy qur’ān for its credibility and authority. the qur’ānic verses play a special role in validating and authorizing this science. this role is to be viewed in terms of foundation-laying, as āyāt al-uṣūl (verses of principles) are...
one of the most important applications of carbon nanotubes (cnts) is as reinforcement of metal matrix composites, because of their excellent mechanical properties. in this study, al-tio2-multi walled carbon nanotubes (mwcnts) nanocomposite is fabricated using isostatic pressing followed by hot extrusion. mechanical alloying is used to mix powders of aluminium, tio2 and mwcnts. tio2 with the amo...
In recent decades, democratic countries have signed hundreds of international environmental agreements (IEAs). Most of these are weak and do not include effective enforcement. To study this puzzle, we propose a positive theory of IEAs in which the political incumbents negotiate in the shadow of reelections. We show that incumbents are prone to negotiate treaties that are simultaneously overambi...
Kai Nagel,* Dietrich E. Wolf, Peter Wagner, and Patrice Simon Los Alamos National Laboratory, TSA-DO/SA Mail Stop M997, Los Alamos, New Mexico 87545 Theoretische Physik, Gerhard-Mercator-Universität, 47048 Duisburg, Germany Zentrum für Paralleles Rechnen, Universität zu Köln, 50923 Köln, Germany Deutsches Zentrum für Luftund Raumfahrt, Linder Höhe, 51170 Köln, Germany ~Received 18 December 1997!
Received 04 Oct., 2013 Accepted 10 Jan., 2014 (006206) 1 Department of Chemistry, State University of Maringá – UEM, Maringá, PR, Brazil, e-mail: [email protected] 2 Universidade Tecnológica Federal do Paraná – UTFPR, Campus Londrina, Tecnologia de Alimentos, Londrina, PR, Brazil 3 Federal University of Latin American Integration – UNILA, Foz do Iguaçú, PR, Brazil *Corresponding author Evalu...
Guilherme Bicalho Saturnino, ∗ Caio Padoan de Sá Godinho, † Denise Fagundes-Lima, ‡ Alcides Castro e Silva, § and Gerald Weber ¶ Departamento de F́ısica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil Departamento de F́ısica, Universidade Federal de de Ouro Preto, Ouro Preto, MG, Brazil
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