نتایج جستجو برای: simulation inmatlab
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هدف اصلی در این تحقیق مدیریت و برنامه ریزی جامع در راستای استفاده بهینه از منابع آب موجود سد بافت، با استفاده از نرم افزارweap و تأمین تقاضا در بخش های مختلف کشاورزی، صنعتی و شرب، با توجه به رشد نیاز آنها در آینده می باشد. به همین منظور ابتدا سد بافت در محیط مدل weap شبیه سازی شد و مدل برای شرایط پایه و هشت سناریوی مختلف طرح های توسعه اجرا گردید. با توجه به نتایج بدست آمده برای سناریوی تقاضای ش...
graphene sheet including single vacancy, double vacancy and stone-wales with armchair and zigzag structure was simulated using molecular dynamics simulation. the effect of defects on shear’s modulus, shear strength and fracture strain was investigated. results showed that these shear properties reduce when the degrees of all kinds of defects increase. the dangling bond in sv and dv defected gr...
to evaluate the effects of the current situation and future development on source groundwater whether quantitative or qualitative point of view, simulation computer resources, a powerful tool in the optimal utilization of source is considered. year recent several model of math and computer simulation of hydraulic behavior of underground water resources focus is located. like making mathematical...
systems perspective' should help the overcoming of artificial subject barriers such as this. The work of Blunt, Duquet and Luckie was concerned with the extent of the resources needed, and the response time, of an information retrieval service, and appears to be especially useful in determining the extent to which response time is affected by the competition by queries for resources. Hertz et a...
We will discuss several techniques for obtaining point estimates and confidence intervals for steady-state performance measures. Let (X(t): t≥ 0) be a GSMP with (discrete) state space S that represents the underlying stochastic process of a simulation. Fix a real-valued function f defined on S and set Y(t) = f(X(t)) for t ≥ 0. There are several possible ways to define steady-state performance m...
تحقیق حاضر با هدف توسعه مدل عددی سه بعدی بر اساس روش شبیه سازی گردابه های بزرگ جریان برای محاسبات میدان جریان آشفته در اطراف موانع و بر پایه حل معادلات جریان و پیوستگی صورت گرفته است. معادلات فیلتر شده مکانی ناویر- استوکس به عنوان معادلات حاکم با استفاده از روش احجام محدود گسسته شده و ترمهای تنشهای زیر شبکه که حاصل این فیلتر سازی هستند، با دو نمونه از مدلهای زیر شبکه متداول استاندارد و دینامیک،...
recent developments in nanostructured products draw considerable attention to ultrafine grained materials. these materials are normally manufactured by different severe plastic deformation (spd) methods. in the present study, analytical models and finite element method (fem) are used to calculate strain imposed to a specimen that was deformed by equal channel angular pressing (ecap). in additio...
the kaolinitic clays have been exploited for more than a hundred years, in the western part of the charentes basin, france, and belong to a paleo-deltaic network. the recent deposits are relatively richer in alumina in comparison with the older ones. the genesis of the kaolin deposits of the charentes basin follows simple geological rules, but their detailed geometry has a great complexity, rei...
background: accurate voxel phantom is needed for dosimetric simulation in radiation therapy for malignant tumors in female pelvic region. however, most of the existing voxel phantoms are constructed on the basis of caucasian or non-chinese population. materials and methods: a computational framework for constructing female pelvic voxel phantom for radiation dosimetry was performed based on chin...
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