نتایج جستجو برای: dimension of effectiveness

تعداد نتایج: 21177986  

Journal: :Mathematics 2022

In this study, we mainly employ a proper orthogonal decomposition (POD) to lower the dimension for unknown Crank–Nicolson finite element (FE) (CNFE) solution coefficient vectors of viscoelastic wave (VW) equation so as build reduced-dimension recursive CNFE (RDRCNFE) algorithm, adopt matrix analysis analyze stability together with errors RDRCNFE solutions, and utilize some numerical experimenta...

Journal: :آب و خاک 0
الناز رضائی آباجلو کامران زینال زاده

introduction: soil hydraulic conductivity is considered as one of the most important hydraulic properties in water and solutionmovement in porous media. in recent years, variousmodels as pedo-transfer functions, fractal models and scaling technique are used to estimate the soil saturated hydraulic conductivity (ks). fractal models with two subset of two (solid and pore) and three phases (solid,...

Journal: :علوم اجتماعی 0

legitimacy is among the factors that bring stability and effectiveness to a political system. in this article, the writer argues that there is a stronger tendency to keep and amend the basic rules of the system of the islamic republic of iran than to change and replace them. also, there is a stronger tendency to amend the present rules than to keep them as they are. political legitimacy, the wr...

2005
Chao Shi Lihui Chen

Cancer classification is one major application of microarray data analysis. Due to the ultra high dimensionality nature of microarray data, data dimension reduction has drawn special attention for such type of data analysis. The currently available data dimension reduction methods are either supervised, where data need to be labeled, or computational complex. In this paper, we proposed to use a...

2017
ZHAO Zhongwen GUO Huanghuang

This paper aims to provide a new method of visualizing high-dimensional data classification by employing principal component analysis (PCA) and support vector machine (SVM). In this method, PCA is adopted to reduce the dimension of high-dimensional data, and then SVM is used for the data classification process. At last, the classified result is projected to two-dimension mapping. The method can...

Journal: :EURASIP J. Adv. Sig. Proc. 2016
Xianxiang Yu Guolong Cui Meifang Luo Lingjiang Kong Dan Ran

This paper deals with the estimation of range-Doppler plane in pulse Doppler radar system, accounting both for clutter-free scenario and clutter scenario. A modified adaptive multi-pulse compression (MAMPC) algorithm including the estimation stages of range dimension and Doppler dimension is proposed for clutter-free scenario, where each stage is implemented based on the gain constraint adaptiv...

2015
Yu-Zhou Li Xia-Mei Tan

Automotive body styling appraisement is very important for body styling design. Because there is not tangible standard at the structure ascertaining of artificial neural network(ANN) and improvement of stability is needed for ANN inside black box characteristic, a bus-styling appraisement method using extension theory-based artificial neural network is presented. The key techniques of quasi-thr...

Journal: :دامپزشکی 0
رسول شهروز دانشیار گروه علوم تشریح دامپزشکی، دانشگاه ارومیه فرهاد سلطانعلی نژاد استادیار گروه علوم تشریح دامپزشکی، دانشگاه ارومیه اکبر عباسی بکتاش فارغ التحصیل دانشکده دامپزشکی دانشگاه ارومیه قاسم اکبری فارغ التحصیل دانشکده دامپزشکی دانشگاه ارومیه

ovary and ovarian bursa of twelve female reproductive organ, six samples from each immature and mature buffaloes were collected from slaughterhouse. all samples were transferred to anatomy department of veterinary college, and they studied morphologically and morphometrically, length, wide, and thickness of ovaries, deep and wide of opening of ovarian bursa were measured. additionally, dimensio...

حاجی زین العلابدینی, محسن, رئیسی, امین, عباسی کسانی, حامد,

Introduction: Information and communication technology has led to emergence of new ways of teaching and learning. E-learning is one of the new ways of learning in the present era. For the e-learning system to be effective, the current e-learning system should be assessed and. The aim of the present study was to investigate the pathology of e-Learning system in Tehran University of Medical Scien...

2011
A. Cassioli D. Di Lorenzo M. Sciandrone

In this work we consider the symmetric network equilibrium problem formulated as convex minimization problem whose variables are the path flows. In order to take into account the difficulties related to the large dimension of real network problems we adopt a column generation strategy and we employ a gradient projection method within an inexact decomposition framework. We present a general deco...

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