نتایج جستجو برای: Hybrid scheme

تعداد نتایج: 405104  

A hybrid censoring scheme is a mixture of type I and type II censoring schemes. When $n$ items are placed on a life test, the experiment terminates under type I or type II hybrid censoring scheme if either a pre-fixed censoring time T or the rth (1<=r<=n&nbsp;is fixed) failure is first or later observed, respectively. In this paper, we investigate the decomposition of entropy in both hybrid cen...

Watermarking is one of the best solutions for copyright protection and authentication of multimedia contents. In this paper a hybrid scheme is proposed using wavelet and shearlet transforms with singular value decomposition. For better security, Arnold map is used for encryption. Examining the results and comparing with other methods show that this hybrid proposed scheme with simultaneous utili...

Journal: :bulletin of the iranian mathematical society 0
k. maleknejad school of‎ ‎mathematics‎, ‎iran university of science &amp; technology‎, ‎narmak‎, ‎tehran 16846 13114‎, ‎iran. k. nouri department of mathematics‎, ‎faculty of mathematics‎, ‎statistics‎ ‎and computer sciences‎, ‎semnan university‎, ‎p.o‎. ‎box 35195-363‎, ‎semnan‎, ‎iran. l. torkzadeh department of mathematics‎, ‎faculty of mathematics‎, ‎statistics‎ ‎and computer sciences‎, ‎semnan university‎, ‎p.o‎. ‎box 35195-363‎, ‎semnan‎, ‎iran.

in this paper we apply hybrid functions of general block-pulse‎ ‎functions and legendre polynomials for solving linear and‎ ‎nonlinear multi-order fractional differential equations (fdes)‎. ‎our approach is based on incorporating operational matrices of‎ ‎fdes with hybrid functions that reduces the fdes problems to‎ ‎the solution of algebraic systems‎. ‎error estimate that verifies a‎ ‎converge...

This paper proposes a hybrid control scheme for the synchronization of two chaotic Duffing oscillator system, subject to uncertainties and external disturbances. The novelty of this scheme is that the Linear Quadratic Regulation (LQR) control, Sliding Mode (SM) control and Gaussian Radial basis Function Neural Network (GRBFNN) control are combined to chaos synchronization with respect to extern...

N. Choug, S. Belkacem S. Benaggoune

This paper presents a hybrid scheme for the control of active and reactive powers using the direct vector control with stator flux orientation (SFO) of the DFIG. The hybrid scheme consists of Fuzzy logic, Reference Signal Tracking (F-RST) controllers. The proposed (F-RST) controller is compared with the classical Proportional-Integral (PI) and the Polynomial (RST) based on the pole placement th...

The purpose of this paper is to obtain the tracking interval for difference of expected Kullback-Leibler risks of two models under Type II hybrid censoring scheme. This interval helps us to evaluate proposed models in comparison with each other. We drive a statistic which tracks the difference of expected Kullback–Leibler risks between maximum likelihood estimators of the distribution in two diff...

Journal: :international journal of industrial mathematics 0
m. othadi department of mathematics, firoozkooh branch, islamic azad university, firoozkooh, iran. m. mosleh department of mathematics, firoozkooh branch, islamic azad university, firoozkooh, iran.

the hybrid fuzzy differential equations have a wide range of applications in science and engineering. we consider the problem of nding their numerical solutions by using a novel hybrid method based on fuzzy neural network. here neural network is considered as a part of large eld called neural computing or soft computing. the proposed algorithm is illustrated by numerical examples and the resu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی عمران 1385

در این تحقیق شبیه سازی عددی غلظت رسوب در حوضچه های ته نشینی به منظور طراحی حوضچه های ته نشینی با در نظر گرفتن آشفتگی صورت گرفته است کلیه معادلات در حالت دایمی حل شده اند. معادلات حاکم شامل معادلات پیوستگی اندازه حرکت و انتقال انتشار رسوب می باشند برای شبیه سازی آشفتگی از مدل دو معادله ای 3-k استفاده شده است گسسته سازی معادلات فوق بر مبنای روش احجام حدود با استفاده از دو طرح پیوندی hybrid و اختل...

M. Mosleh M. Othadi,

The hybrid fuzzy differential equations have a wide range of applications in science and engineering. We consider the problem of nding their numerical solutions by using a novel hybrid method based on fuzzy neural network. Here neural network is considered as a part of large eld called neural computing or soft computing. The proposed algorithm is illustrated by numerical examples and the result...

Journal: :international journal of robotics 0
mohammad ali nekoui k.n. toosi university of technology

this paper proposes a hybrid control scheme for the synchronization of two chaotic duffing oscillator system, subject to uncertainties and external disturbances. the novelty of this scheme is that the linear quadratic regulation (lqr) control, sliding mode (sm) control and gaussian radial basis function neural network (grbfnn) control are combined to chaos synchronization with respect to extern...

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