نتایج جستجو برای: partial differentialequation
تعداد نتایج: 230175 فیلتر نتایج به سال:
Background and objectives: Anal fissure is a painful wound in the anoderm and distal to dentate line, the chronic fissure leads to hypertrophy and fibrosis. In this study, we compared partial and total sphincterotomy in patients with chronic anal fissure. Methods: In this comparative cohort, 100 patients (52 female and 48 male )mean age 43.34 ± 15.28 year...
recurrent sigmoid volvulus is a clinical entity characterized by recurrent episodes of partial or complete sigmoid volvulus. although it is commonly seen in the elderly, it can be occasionally seen in younger patients. patients with recurrent partial sigmoid volvulus are relatively asymptomatic or present with mild abdominal pain. early diagnosis and treatment is essential to prevent conversion...
This paper reveals some relations between fuzzy logic and quantum on partial residuated implications (PRIs) induced by t-norms as well proposes monoids (PRMs) lattices (PRLs) defining adjoint pairs. First of all, we introduce the connection lattice effect algebra according to concept given Borzooei, together with proof that operation in any commutative quasiresiduated is t-norm. Then, offer gen...
کمپلکس نقره (i) با لیگاند 2و9-دی متیل-1و10-فنانترولین سنتز و با آنالیز عنصری (chn) ، طیف سنجی uv- vis،ft-ir ، 1h nmrو13c nmr شناسایی شد. سپس بر هم کنش این کمپلکس نقره با dna توسط روشهای اسپکتروفتومتری، فلوریمتری، دورنگ نمائی چرخشی، ویسکوزیمتری و ژل الکتروفورز بررسی شده است. افزایش dna به محلول کمپلکس نقره موجب کاهش شدت جذب در اسپکتروفتومتری کمپلکس ، کاهش کمی در ویسکوزیته محلول و افزایش در طیف...
objective: the aim of the present study was to retrospectively evaluate small-diameter (3.3 mm) straumann® dental implants placed in the maxilla or the mandible over a period of 5 years in function. materials and methods: twenty- eight partially edentulous patients received a total of 48 implants over a 5-year period. after the standard healing period (3 to 6 months), the implants were restored...
in this paper, we investigate the zassenhaus conjecture for $psl(4,3)$ and $psl(5,2)$. consequently, we prove that the prime graph question is true for both groups.
in the present work, a hybrid of fourier transform and homotopy perturbation method is developed for solving the non-homogeneous partial differential equations with variable coefficients. the fourier transform is employed with combination of homotopy perturbation method (hpm), the so called fourier transform homotopy perturbation method (fthpm) to solve the partial differential equations. the c...
in this paper, we present a novel approach for image selective smoothing by the evolution of two paired nonlinear partial differential equations. the distribution coefficient in de-noising equation controls the speed of distribution, and is determined by the edge-strength function. in the previous works, the edge-strength function depends on isotropic smoothing of the image, ...
in the present study an alternative model allows the extension of the debye-hückel theory (dht) considering time dependence explicitly. from the electro-quasistatic approach (eqs) done in earlier studies time dependent potentials are suitable to describe several phenomena especially conducting media as well as the behaviour of charged particles in arbitrary solutions acting as electrolytes.this...
nowadays, the environmental impact of transportation project and, especially air pollution impacts, are major concerns in evaluating transportation projects. based on this concern, beside definition of traditional objective functions like total travel time and total investment cost, different type of environmental related function is considered as objective function in urban network design. in...
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