نتایج جستجو برای: effective matrix

تعداد نتایج: 1028272  

Journal: :Journal of Medical Internet Research 1999

Journal: : 2022

A composite material based on ellipsoidal inclusions distributed in a bonding medium is considered. formula obtained for calculating the effective dielectric constant of such material, taking into account presence layer binder inclusions, which prevents their direct contact. It shown that calculated values correspond to experimental sections conductive fibers. Keywords: radar absorbing structur...

Matrix functions are used in many areas of linear algebra and arise in numerical applications in science and engineering. In this paper, we introduce an effective approach for determining matrix function f(A)=g(q(A)) of a square matrix A, where q is a polynomial function from a degree of m and also function g can be a transcendental function. Computing a matrix function f(A) will be time- consu...

Journal: :international journal of mathematical modelling and computations 0
a. sadeghi department of mathematics, islamic azad university, robat karim branch, tehran, iran.

the matrix functions appear in several applications in engineering and sciences. the computation of these functions almost involved complicated theory. thus, improving the concept theoretically seems unavoidable to obtain some new relations and algorithms for evaluating these functions. the aim of this paper is proposing some new reciprocal for the function of block anti diagonal matrices. more...

Recently, scientists are concerned about nuclear waste landfill sites. Because salt pans, salt marsh and salt domes are non-porous environment, with no stubble thickness of salt and the plant communities, less humans and animals can be found around them, so it can be used as a nuclear waste landfill.  In this study, 24 environmental criteria are investigated with emphasis on hydrology, wat...

Mohammad Kazem Hassanzadeh Aghdam Reza Ansari

A three-dimensional micromechanics-based analytical model is developed to study thermo-mechanical properties of polymer composites reinforced with randomly distributed silica nanoparticles. Two important factors in nanocomposites modeling using micromechanical models are nanoparticle arrangement in matrix and interphase effects. In order to study these cases, representative volume element (RVE)...

Journal: :iranian journal of pharmaceutical sciences 0
saini nish school of pharmaceutical sciences, shoolini university solan (h.p), india george mathew school of pharmaceutical sciences, shoolini university solan (h.p), india joseph lincy school of pharmaceutical sciences, shoolini university solan (h.p), india

the purpose of this review article is to characterize all of the parameters regarding the types, polymers used, and release kinetics of matrix tablets. matrix system was the earliest oral extended release platform for medicinal use. matrix tablets are most commonly used methods to modulate the release profile of drugs. they are much desirable and preferred for such therapy because they offer be...

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