نتایج جستجو برای: Diagonal power-reduction

تعداد نتایج: 967796  

Journal: :bulletin of the iranian mathematical society 2015
n. ashrafi m. sheibani h. dehghany

in this paper we define a new type of rings ”almost powerhermitian rings” (a generalization of almost hermitian rings) and establish several sufficient conditions over a ring r such that, every regular matrix admits a diagonal power-reduction.

In this paper we define a new type of rings ”almost powerhermitian rings” (a generalization of almost hermitian rings) and establish several sufficient conditions over a ring R such that, every regular matrix admits a diagonal power-reduction.

ژورنال: پژوهش های ریاضی 2022

  Abstract: A ring R is called a refinement ring if the monoid of finitely generated projective R- modules is refinement.  Let R be a commutative refinement ring and M, N, be two finitely generated projective R-nodules, then M~N  if and only if Mm ~Nm for all maximal ideal m of  R. A rectangular matrix A over R admits diagonal reduction if there exit invertible matrices p and Q such that PAQ is...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

2003
Raphael Cendrillon Marc Moonen Radu Suciu George Ginis

In this paper we investigate power allocation and crosstalk cancellation for MIMO-DSL (a.k.a. bonded-DSL) systems. Exploiting a property of the DSL channel, namely columnwise diagonal dominance, allows us to simplify the power allocation and crosstalk cancellation problems. This leads to a significant reduction in initialisation and run-time complexity whilst maintaining near-optimal performanc...

Journal: :Functional Analysis and Its Applications 2010

Journal: :civil engineering infrastructures journal 0
mussa mahmoudi shahid rajaee teacher training university seyed mohammad reza mortazavi shahid rajaee teacher training university saeid ajdari shahid rajaee teacher training university

response modification factor (r factor) is one of the seismic design parameters to be considered in evaluating the performance of buildings during strong motions. this paper has tried to evaluate the response modification factor of concrete coupled shear wall structures with various length/depth ratios of spandrel beams. the effect of diagonal reinforcement of spandrel beam was also evaluated o...

Response modification factor (R factor) is one of the seismic design parameters to be considered in evaluating the performance of buildings during strong motions. This paper has tried to evaluate the response modification factor of concrete coupled shear wall structures with various length/depth ratios of spandrel beams. The effect of diagonal reinforcement of spandrel beam was also evaluated o...

Journal: :Applied Mathematics and Mechanics-english Edition 2022

Abstract The diagonal inerter is integrated into a suspension vibration reduction system (SVRS). dynamic model of the SVRS with and damping established. strong geometric nonlinearity. retaining non-linearity up to cubic terms validated under impact excitation. conditions omitting static deformation are determined. effects on performance explored random excitations. proposed both better than tha...

Journal: :SIAM Journal on Matrix Analysis and Applications 2004

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