نتایج جستجو برای: planar

تعداد نتایج: 64515  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1388

چکیده ندارد.

Objective(s): In heart failure, the heart-to-mediastinum (H/M) ratio of the delayed image and washout rate (WR) are well-known as a powerful cardiac event predictors. H/M ratio quantifies the accumulation rate of MIBG in the myocardium and WR quantifies reduction of meta-iodobenzylguanidine (MIBG) accumulation in the heart from the early planar image to the delayed pla...

Journal: :New Zealand journal of mathematics 2021


 We introduce a notion of planar algebra, the simplest example which is vector space tensors, closed under contractions. A algebra with suitable positivity properties produces finite index subfactor II1 factor, and vice versa.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1386

چکیده ندارد.

Journal: :تحقیقات مهندسی کشاورزی 0
امیر صمدی دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران ابراهیم امیری تکلدانی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسن رحیمی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

riverbank erosion, land loss and associated sedimentation are river engineering and water resources management problems of global significance. the ability to predict riverbank stability on eroding rivers is the prerequisite of developing a channel width adjustment model and is essential for estimating riverbank erosion and associated sedimentation. in this research, a detailed model for stabil...

Journal: :transactions on combinatorics 2014
mohammad javad nikmehr samaneh bahramian

let $a$ be a non-trivial abelian group and $a^{*}=asetminus {0}$. a graph $g$ is said to be $a$-magic graph if there exists a labeling$l:e(g)rightarrow a^{*}$ such that the induced vertex labeling$l^{+}:v(g)rightarrow a$, define by $$l^+(v)=sum_{uvin e(g)} l(uv)$$ is a constant map.the set of all constant integerssuch that $sum_{uin n(v)} l(uv)=c$, for each $vin n(v)$,where $n(v)$ denotes the s...

Journal: :physical chemistry and electrochemistry 0

the crystal structure of the title schiff base complex is obtained by single-crystal x-ray diffraction data.the solid state structure determination reveals that the coordination geometry around the copper(ii) center istetrahedrally distorted square-planar. the crystal packing shows one dimensional infinite chains which arisesfrom the intermolecular interaction and stabilize the crystal packing.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

Journal: :Journal of Combinatorial Theory, Series A 2018

Journal: :Journal of Algebraic Combinatorics 2004

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