نتایج جستجو برای: key words physical nonlinear

تعداد نتایج: 1471881  

2001
Guy Gilboa Yehoshua Y. Zeevi Nir A. Sochen

We present two nonlinear di usion processes with timedependent di usion coeÆcients. Both processes converge to nontrivial solutions, eliminating the need to impose an arbitrary di usion stopping time, otherwise required in the implementation of most nonlinear diffusion processes. The two schemes employ nonlinear cooling mechanisms that preserve edges. One scheme is intended for general denoisin...

2005
EMIL PETRE

This paper deals with the design and the analysis of some nonlinear and adaptive control strategies capable to deal with the model uncertainties in an adaptive way for a complex and time varying bioprocess resulting from the association of a recycling bioreactor with an electrochemical reactor. The nonlinear controller design is based on the input-output linearizing technique. Computer simulati...

2004
FRANCISCO FERRÁNDEZ

We propose a new system that is applicable to public key cryptography. The system is a variant of the Discrete Logarithm Problem (DLP) with the elements of a certain group, formed with points of an elliptic curve, and the elements of a certain finite field related to the curve. The nonlinear term refers to the coefficient that we use as the problem to solve because it is obtained with a nonline...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

the changes in todays world organization, to the extent that instability can be characterized with the most stable organizations called this afternoon. if you ever change management component, an additional value to the organization was considered, today, these elements become the foundation the organization is survival. the definition of the entrepreneur to identify opportunities to exploit a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده ادبیات و علوم انسانی 1389

abstract compound is a word-formation process that are made two free morpheme (independent) and forms a new word with a new meaning that consists of meaning of both two component of compound. avestan language is one of the ancient iranian languages that is one of the indo-iranian languages. indo-iranian languages is one branch of indo-european languages. structure of compound noun and adjectiv...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1388

abstract the aim of this study was threefold: (1) to investigate the relationship between knowledge of semantic prosody and efl learners general language proficiency; (2) to examine the relationship between qualitative as well as quantitative knowledge of words, and (3) to compare the performance of efl learner on receptive and productive measures of semantic prosody. the study is based on a...

Journal: :Systems & Control Letters 2005
Shoudong Huang Matthew R. James Zhong-Ping Jiang

In this paper, we consider the L∞-bounded robust control problem for a class of nonlinear cascade systems with disturbances. Sufficient conditions are provided under which a hard bound is imposed on the system performance measure. The backstepping approach is used for controller design. Examples are provided to illustrate the method. Key-words. Nonlinear cascade systems, L∞ bound, robust contro...

2013
Qinghua Feng Fanwei Meng

In this work, some new interval oscillation criteria for solutions of a class of nonlinear fractional differential equations are established by using a generalized Riccati function and inequality technique. For illustrating the validity of the established results, we also present some applications for them. Key–Words: Oscillation; Interval criteria; Qualitative properties; Fractional differenti...

2010
Qinghua Feng Bin Zheng

In this paper, we derive exact traveling wave solutions of the (2+1)-dimensional Nizhnik-NovikovVeselov (NNV) system by a presented method. The method appears to be efficient in seeking exact solutions of nonlinear equations. Key–Words: (G ′ G )-expansion method, Travelling wave solutions, (2+1)-dimensional Nizhnik-Novikov-Veselov (NNV) system, nonlinear equation, exact solution, evolution equa...

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