نتایج جستجو برای: symmetrical and asymmetrical substitution

تعداد نتایج: 16836748  

Journal: :Comput. J. 1998
Anton Biasizzo Alenka Zuzek Franc Novak

In this paper we present the generalization of the test sequencing problem, originally defined for symmetrical tests, that also covers asymmetrical tests. We prove that the same heuristics that has been employed in the traditional solution of the problem (e.g., the AO∗ algorithm with heuristics based on Huffman’s coding) can be employed also for the generalized case. Examples are given to illus...

A multilevel inverter is capable of generating high-quality stepwise pseudo-sinusoidalvoltage with low THD , applicable to high-power and high-voltage systems. These types of topologiesmay require a large number of switches and power supplies. This leads to much cost, large size, andcomplicated control algorithms. Thus, newer topologies are being proposed to decrease the numberof power electron...

Journal: :asian journal of sports medicine 0
ramin espandar md, department of orthopedic surgery, imam komoni complex hospital, tehran university of medical sc seyed-mohammad-javad mortazavi md, sports medicine research center, tehran university of medical sciences, tehran, ir iran taghi baghdadi md, department of orthopedic surgery, imam komoni complex hospital, tehran university of medical sc

angular deformities of the lower limbs are common during childhood. in most cases this represents a variation in the normal growth pattern and is an entirely benign condition. presence of symmetrical deformities and absence of symptoms, joint stiffness, systemic disorders or syndromes indicates a benign condition with excellent long-term outcome. in contrast, deformities which are asymmetrical ...

2012
Dawei Chen Yuanwei Zhang Qiyi Yi Yun Huang Heli Hou Yingyin Zhang Qiaomei Hao Howard J. Cooke Lei Li Qingyuan Sun Qinghua Shi

Mammalian oocytes undergo an asymmetrical first meiotic division, extruding half of their chromosomes in a small polar body to preserve maternal resources for embryonic development. To divide asymmetrically, mammalian oocytes relocate chromosomes from the center of the cell to the cortex, but little is known about the underlying mechanisms. Here, we show that upon the elevation of intracellular...

In this paper, a new configuration for symmetrical and asymmetrical multilevel inverters is proposed. In asymmetric mode, different algorithms are suggested in order to determine the magnitudes of DC voltage sources. The merit of this topology to the conventional symmetric and asymmetric inverters is verified by the provided comparisons. This topology uses a lower number of power electronic dev...

2011
YS Liu XK Hong JF Feng XF Yang

We examine the relation between the phase-coherent processes and spin-dependent thermoelectric effects in an Aharonov-Bohm (AB) interferometer with a Rashba quantum dot (QD) in each of its arm by using the Green's function formalism and equation of motion (EOM) technique. Due to the interplay between quantum destructive interference and Rashba spin-orbit interaction (RSOI) in each QD, an asymme...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2001
S P Kelly C M Wood

Cortisol had dose-dependent effects on the electrophysiological, permeability, and ion-transporting properties of cultured pavement cell epithelia derived from freshwater rainbow trout gills and grown on cell culture filter supports. Under both symmetrical (L15 media apical/L15 media basolateral) and asymmetrical (freshwater apical/L15 media basolateral) culture conditions, cortisol treatment e...

2011
Nejc Sarabon Samantha Burggraf

The aim of this study was to test the effect of the stance width and asymmetry on muscle activation patterns during balancing on a tilt board. Eleven young healthy volunteers took part in the tests. After the standardized warm-up and customization protocol had been carried out, they balanced five times for 60 seconds on a tilt board, using a different foot position each time (i) wide symmetrica...

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