نتایج جستجو برای: by means of singular value expansion
تعداد نتایج: 21660145 فیلتر نتایج به سال:
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
the central purpose of this study was to conduct a case study about the role of self monitoring in teacher’s use of motivational strategies. furthermore it focused on how these strategies affected students’ motivational behavior. although many studies have been done to investigate teachers’ motivational strategies use (cheng & d?rnyei, 2007; d?rnyei & csizer, 1998; green, 2001, guilloteaux & d?...
the main purpose of this study was to investigate any relationship between high school efl teachers metaphorical understandings of their role in class and their self-efficacy beliefs. teachers metaphors were elicited through two different prompts: one picturing what they believed a language teacher should be like in class, and the other demonstrating what they are actually like in class; such...
In a paper by Burke, Lewis and Overton, a first order expansion has been given for the minimum singular value of A−zI, z ∈ C, about a nonderogatory eigenvalue λ of A ∈ Cn×n. This note investigates the relationship of the expansion with the Jordan canonical form of A. Furthermore, formulas for the condition number of eigenvalues are derived from the expansion.
In a paper by Burke, Lewis and Overton, a first order expansion has been given for the minimum singular value of A−zI, z ∈ C, about a nonderogatory eigenvalue λ of A ∈ Cn×n. This note investigates the relationship of the expansion with the Jordan canonical form of A. Furthermore, formulas for the condition number of eigenvalues are derived from the expansion.
This paper deals with the two-dimensional problem of elastic wave scattering from a finite crack at the interface between a coated material layer and its substrate. By adopting the Fourier transform method and introducing the crack opening displacement function, the boundary value problem is simplified for numerically solving a system of Cauchy-type singular integral equations by means of Jacob...
Noncentral indefinite quadratic expressions in possibly non- singular normal vectors are represented in terms of the difference of two positive definite quadratic forms and an independently distributed linear combination of standard normal random variables. This result also ap- plies to quadratic forms in singular normal vectors for which no general representation is currently available. The ...
Background and aim: correspondence analysis method as the best method to optimize matrix functions that using the risk-injury matrix methods are analyzed. This method reduces the information contained in the risk-injury table and to determine the correlation between the variables in the matrix. The aim of this study is to present accidents and occupational hazards dimensions is dependent to ris...
Spectral approximations for ODEs in unbounded domains have only received limited attention. In many applicable problems, singular initial value problems arise. In solving these problems, most of numerical methods have difficulties and often could not pass the singular point successfully. In this paper, we apply the sinc-collocation method for solving singular initial value problems. The ability...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
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