نتایج جستجو برای: نانوساختار c s h

تعداد نتایج: 1948066  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی 1376

در سال 1951 آر. آرنز دو ضرب روی a" تعریف نمود که به ضرب آرنز چپ و ضرب آرنز راست موسوم اند. تحت هر یک از این دو ضریب a" تبدیل به یک جبر باناخ می شود. اگر این دو ضریب روی a" بر هم منطبق باشند جبر a را منظم آرنز می گوئیم. یک مسئله مهم و طبیعی بررسی ساختارهای جدیدی از جبرهای منظم آرنز است . بدیهی است که یک زیر جبر بسته از یک جبر منظم آرنز، منظم آرنز و جبرهای خارج قسمتی از یک جبر منظم آرنز نیز منظم ...

J. Jin M. Ye Y. Feng

Based on a new hesitant fuzzy partial ordering proposed by Garmendia et al.~cite{GaCa:Pohfs}, in this paper a fuzzy disjunction ${D}$ on the set ${H}$ of finite and nonempty subsets of the unit interval and a t-conorm ${S}$ on the set $bar{{B}}$ of equivalence class on the set of finite bags of unit interval based on this partial ordering are introduced respectively. Then, hesitant fuzzy negati...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده علوم 1389

همانطور که می دانیم قدمت سنتز ایلید ها به 70 سال پیش بر می گردد، قبلاً پدیده دینامیک 1h nmr حول چرخش یک یا دو پیوند صورت گرفته است ولی در سالهای اخیر برای اولین بار، بررسی دینامیک همزمان سه چرخش حول پیوندها در ایلید فسفر ویژه ای در سال 2009 گزارش شد. این کار آغازی شد برای بررسی d nmr در ایلیدها و انامینو استرهایی که بیش از یک چرخش دارند. این حقیقت ویژه باعث شد برای بررسی سینتیک مربوط به تبدیلاتی...

Journal: :iranian journal of cancer prevention 0
m firoozi ma besharat s pournaghash tehrani

background: child ho od cancer, as o n e of the life thre at ening and most serio u s health pro b lems, co n si d er a bly i n fl u en ce s the cogniti v e and soci a l functions of children with c ancer and the i r families; ho w e ver, sur p risin gl y e n ough, t h ese chil d ren are q u ite co mpatible w ith their pe ers and even fu n ction bet t er emotio n ally compa r ed with norm a l c...

Journal: :Acta Crystallographica Section E: Crystallographic Communications 2023

In the title complex, [Ni(C 6 H N 3 OS) 2 ]·2CH OH, Ni II atom is coordinated by S and atoms of two ′-[( Z )-(furan-2-yl)methylidene]carbamohydrazonothioic acid ligands in a distorted square-planar geometry. The mutual bound to are also connected C—H...S interactions, while NH group form R 4 (8) motifs with O solvent ethyl alcohol molecules. At same time, OH groups molecules parallel layers (01...

Journal: :تحقیقات اقتصادی 0
علی طیب نیا دانشیار دانشکده‎ی اقتصاد دانشگاه تهران فاطمه قاسمی کارشناس ارشد اقتصاد دانشگاه تهران

this paper identifies characteristics of business cycles in iran, applying hodrick-prescott (hp) and band-pass (bp) filters. using seasonal and anual data for 1970-2003, it is found that oil income is the key driving factor of business cycles in the iranian economy. furthermore, it is indicated that iran's economy has experienced seven business cycles during this period, in which the econo...

Journal: :به زراعی کشاورزی 0
مونا سروری دانشجوی کارشناسی ارشد زراعت، دانشکده کشاورزی، دانشگاه گیلان سید محمدرضا احتشامی عضو هیأت علمی، گروه زراعت، دانشکده کشاورزی، دانشگاه گیلان محمد ربیعی عضو هیأت علمی مؤسسه تحقیقات برنج کشور کاظم خاوازی عضو هیأت علمی مؤسسة تحقیقات آب و خاک

in order to evaluate effect of azotobacter chroococcum strains on yield, yield components and qualitative indices of winter rapeseed (brassica napus l.), an experiment was conducted during 2009-2010 growing season at research institute of rice in rasht. the experimental design was completely randomized block, with three replications. investigated treatments were including control (without seed ...

Journal: :bulletin of the iranian mathematical society 0
s. rezakhah faculty of mathematics and computer sciences‎, ‎amirkabir university of technology‎, ‎tehran‎, ‎iran. a. soltani department of statistics and operational research‎, ‎faculty of science‎, ‎kuwait university‎, ‎state of kuwait.

let$ p_{n}(x)= sum_{i=0}^{n} a_{i}x^{i}$ be a random algebraicpolynomial, where $a_{0},a_{1}, cdots $ is a sequence of independent random variables belong to the domain of attraction of the normal law. thus $a_j$'s for $j=0,1cdots $ possesses the characteristic functions $exp {-frac{1}{2}t^{2}h_{j}(t)}$, where $h_j(t)$'s are complex slowlyvarying functions.under the assumption that th...

Journal: :iranian journal of nuclear medicine 2016
hassan yousefnia ahmad bitarafan-rajabi mir sepehr pedram samaneh zolghadri ali bahrami-samani

introduction: recently, due to the special characteristics of 166ho and chitosan, 166ho-chitosan complex was developed for treatment of tumors such as hepatocellular carcinoma. this complex has been lately prepared with high radiochemical purity in our lab. the preclinical studies of the complex however should be performed to evaluate the tracer concentration in target and normal tissues before...

Journal: :jundishapur journal of microbiology 0
mehrdad hajilooi department of immunology, faculty of medicine, hamadan university of medical sciences, hamadan, ir iran pegah lotfi department of microbiology, faculty of medicine, hamadan university of medical sciences, hamadan, ir iran farhad seif department of immunology and microbiology, faculty of medicine, shahrekord university of medical sciences, shahrekord, ir iran ahad bazmani infectious and tropical diseases research center, tabriz university of medical sciences, tabriz, ir iran mohammad momeni department of immunology, school of public health, tehran university of medical sciences, tehran, ir iran ali ravary occupational environment research center, rafsanjan university of medical sciences, rafsanjan, ir iran

conclusions according to the results, the polymorphisms within the +49 position of ctla-4 can be associated with vl and may be considered as risk factors for the disease. results our results indicated that both ctla-4 +49a/g polymorphisms were significantly associated with vl. materials and methods in this cross-sectional study, 88 patients with clinical presentations of vl, who were seropositi...

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