نتایج جستجو برای: derived
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the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...
purpose: to separate and characterize orbital fat-derived stem cells (ofscs) and compare its cellular and molecular properties with those of bone marrow-derived mesenchymal stem cells (mscs) and adipose-derived stem cells (ascs). methods: stem cells from orbital fat, abdominal fat and bone marrow aspirates have been isolated. we assessed stem cell specific cell surface markers using cytometry, ...
in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...
مقدمه: از کارامدترین روش های ترمیم آسیب های بافتی، سلول درمانی است. امروزه از سلول های msc (mesenchymal stem cell) به دلیل قدرت بالای تمایز به انواع سلول ها و ترشح فاکتورهای رشد متعددی همچون pdgf (platelet derived growth factor) و sdf-1α (stromal cell-derived factors-1alpha) برای این منظور استفاده می شود. هورمون های جنسی با اثر بر میزان ترشح این فاکتورها، تکثیر و مهاجرت سلول ها و فرایند های ترم...
this paper presents characterizations of m-fuzzifying matroids bymeans of two kinds of fuzzy operators, called m-fuzzifying derived operatorsand m-fuzzifying difference derived operators.
conclusions large amounts of preclinical studies have been made of stem cells and there is an increasing interest to perform these studies within the human population but preclinical studies are insufficient; therefore, much more and efficient studies should be conducted to evaluate the efficacy and safety of stem cells. context musculoskeletal injuries may be painful, troublesome, life limitin...
background and objectives: the objective of this study was to monitor the microorganisms isolated from grapes and its derivative traditional products produced in iran. material and methods: four kinds of grapes cultivated summer of 2010 in vineyard of takestan and also grape derived products from shahrod, hamedan and takestan were used for this study. the samples were cultured in specific medi...
abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfac...
The photophoretic force is described by a comprehensive model containing aspects of both the optical local-field and gas-dynamic properties. It is shown that the model is in good agreement with detailed experimental data and provides a new means for measuring optical constants of microparticles.
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