نتایج جستجو برای: proufer domain

تعداد نتایج: 405765  

Journal: :iranian journal of public health 0
fatemeh koohi saharnaz nedjat mehdi yaseri zahra cheraghi

background: the current study was conducted to estimate the integrated mean of quality of life (qol) of the general population of different countries around the world and to compare them on the grounds of the human development index (hdi). methods: well-known international databases such as medline, scopus, science direct, google scholar & google, and domestic databases including sid, iranmedex...

Finding a suitable estimation of stability domain around stable equilibrium points is an important issue in the study of nonlinear dynamical systems. This paper intends to apply a set of analytical-numerical methods to estimate the region of attraction for autonomous nonlinear systems. In mechanical and structural engineering, autonomous systems could be found in large deformation problems or c...

One of the oldest and most pleasant and efficient kinds of poetry, which have attracted the attention of scholars and lovers of poetry since the beginning of the Persian poetry until now, is elegy. Khaghani Shervani is one of the poets who wrote after this genre and composed many memorable and beautiful elegies. The poet, who like many other people experienced happy and sad events and occasions...

Journal: :bulletin of the iranian mathematical society 2015
r. jahani-nezhad f. khoshayand

the aim of this paper is to generalize the‎‎notion of pseudo-almost valuation domains to arbitrary‎ ‎commutative rings‎. ‎it is shown that the classes of chained rings‎ ‎and pseudo-valuation rings are properly contained in the class of‎ ‎pseudo-almost valuation rings; also the class of pseudo-almost‎ ‎valuation rings is properly contained in the class of quasi-local‎ ‎rings with linearly ordere...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی برق و کامپیوتر 1392

تصویر برداری از مغز به دو گونه می باشد: تصویربرداری ساختاری و تصویربرداری عملکردی. در تصویر برداری ساختاری شاهد اطلاعاتی مربوط به آناتومیک و ساختار مغز هستیم. در حالی که تصویر عملکردی بیانگر فعالیت مغز در نواحی گوناگون می باشد. تفسیر جداگانه ی این تصویر ها برای پزشک امری دشوار است و از طرفی تصاویر عملکردی مثل اسپکت از رزولوشن پایینی برخوردارند در حالی که تصویر ساختاری مثل ام آر آی رزولوشن مکانی...

ژورنال: :پژوهش های سلولی و ملکولی 0
سهیلا مطرودی تهران، پژوهشگاه ملی مهندسی ژنتیک و زیست فناوری خرمشهر، دانشگاه علوم و فنون دریایی خرمشهر محمدرضا زمانی تهران، پژوهشگاه ملی مهندسی ژنتیک و زیست فناوری مصطفی مطلبی تهران، پژوهشگاه ملی مهندسی ژنتیک و زیست فناوری

آنزیم¬های کایمری از جمله پروتئین¬های مهندسی شده می¬باشند که از تغییر در ساختار آنزیم¬ها بدست می¬آیند. آنزیم¬های کیتینازی بدلیل توانایی در تجزیه ترکیبات کیتینی، در تولید پروتوپلاست قارچی، تبدیل زیستی shellfish waste به بخش های تک جزئی، تولید الیگوساکاریدها و کنترل قارچ¬های بیماریزا حائز اهمیت می-باشند. در این تحقیق پس از تکثیر ناحیه (chitin binding domain) chbd کیتینازb باکتری serratia marcescen...

Journal: :iranian journal of medical sciences 0
ajit kulkarni department of virology, haffkine institute for traning, research and testing, acharya donde marg, mumbai-400012 india rushil bhat department of virology, haffkine institute for traning, research and testing, acharya donde marg, mumbai-400012 india mansi malik department of zoonosis, haffkine institute for traning, research and testing, acharya donde marg, mumbai-400012 india suvarna sane national aids research institute, midc, bhosari, pune-411026 india sweta kothari department of virology, haffkine institute for traning, research and testing, acharya donde marg, mumbai-400012 india shashikant vaidya department of virology, haffkine institute for traning, research and testing, acharya donde marg, mumbai-400012 india

background: dengue is a global arboviral threat to humans; causing 390 million infections per year. the availability of safe and effective tetravalent dengue vaccine is a global requirement to prevent epidemics, morbidity, and mortality associated with it. methods: five experimental groups (6 mice per group) each of 5-week-old balb/c mice were immunized with vaccine and placebo (empty plasmid) ...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0
صنعت جو صنعت جو فتحیان فتحیان

this research aims to compare the capabilities of a thesaurus and an ontology for representation of domain knowledge. this is the first to focus on the construction of an ontology in library and information science (lis), in the domain of indexing and in persian language. the research also develops the methodology of ontology construction by implementing domain analysis methodology. the present...

N Das Gupta, N.C Das

The titled problem of coupled thermoelasticity for porous structure has been solved with an instantaneous heat source acting on a plane area in an unbounded medium. The basic equations of thermoelasticity, after being converted into a one-dimensional form, have been written in the form of a vector-matrix differential equation and solved by the eigenvalue approach for the field variables in the ...

ژورنال: مطالعات عرفانی 2010

The domains of mystic topics in related text greatly expanded in the late 6th and 7th centuries (A.H). This expansion led to the use of new lexical items for the expression of new concepts. One domain is the lexical domain used for the description of different levels of existence. Letter (harf), word (kalameh), discourse (kalām), book (ketāb), pen (qalam), etc. are parts of this domain. This wo...

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