نتایج جستجو برای: twodimensional problem

تعداد نتایج: 882638  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1390

برد عددی ماتریس مربعی a را با w(a) نشان داده و به این صورت تعریف می کنیم w(a)={x8ax:x ?s1} ، که در آن s1 گوی واحد است. در سال 2009، راسل کاردن مساله برد عددی معکوس را به این صورت مطرح کرده است : برای نقطه z?w(a)، بردار x?s1 را به گونه ای می یابیم که z=x*ax، در این پایان نامه ، الگوریتمی برای حل مساله برد عددی معکوس ارانه می دهیم.

Journal: :Applied mathematics and nonlinear sciences 2021

Abstract With the deepening of human understanding marine resources and acceleration resource development, industrial robots have come to be widely used. Robots are not simply a substitute for manual labour, but personified electronic mechanical device that combines machine strengths. They both ability react quickly analyse judge state environment, work continuously long time, with high accurac...

Journal: :Applied Physics Letters 2023

The stacked two layered materials with a lattice constant mismatch and/or twist angle relative to each other can create moir\'e pattern, modulating the electronic properties of pristine materials. Here, we combine scanning tunneling microscopy/spectroscopy and density functional theory calculations investigate potential induced bandgap tuning in InSe/CuSe vertical heterostructure synthesized by...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده ادبیات و زبانهای خارجی 1392

abstract the current study examined the role of emotional intelligence and motivation on language learning of efl learners in iranian context. the participants of this study were 162 female and 100 male junior high school students. these participants were selected by convenient sampling method. to carry out the study two questionnaires were administered to the participants. first, the adap...

2002
U. Burnik J. Tasič

Characteristical problem of multidimensional signal analysis and restoration is processing of extremely big amounts of data as well as handling of data dependancies in more than one direction. The problem of restoration can often be described as an ill-conditioned problem. In the following paper, an algebraic approach to two-dimensional image filtering will be presented. The Wiener solution wil...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

the main purpose of the present study was to investigate the relationship between listening proficiency and metacognitive listening strategies awareness among low, mid, and highly self-regulated students. three hundred and seventy one efl students participated in this study (all grade 3 and 4 high-school students who were studying in khansar in academic year 1391-92). to gather the data, three ...

2006
Lorenzo Valdettaro Michel Rieutord Thierry Braconnier

An efficient way of solving 2D stability problems in fluid mechanics is to use, after discretization of the equations that cast the problem in the form of a generalized eigenvalue problem, the incomplete Arnoldi-Chebyshev method. This method preserves the banded structure sparsity of matrices of the algebraic eigenvalue problem and thus decreases memory use and CPU-time consumption. The errors ...

2004
J. Sánchez-Guillén

We calculate all symmetries of the Dirac-Pauli equation in twodimensional and three-dimensional Euclidean space. Further, we use our results for an investigation of the issue of zero mode degeneracy. email: [email protected] email: [email protected]

2004
Alina Vdovina

We construct compact polyhedra with triangular faces whose links are generalized 3-gons. They are interesting compact spaces covered by Euclidean buildings of type A2. Those spaces give us twodimensional subshifts, which can be used to construct some C-algebras.

Journal: :Physical review 2023

Spin current generation and manipulation remain the key challenge of spintronics, in which relativistic spinorbit coupling (SOC) play a ubiquitous role. In this letter, we demonstrate that hidden Rashba spins non-magnetic, centrosymmetric lattice multilayer SnSe2 can be efficiently activated by spin-orbit scattering introduced Se vacancies. Via vacancy scattering, conduction electrons with spin...

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