نتایج جستجو برای: voltage deviation
تعداد نتایج: 178457 فیلتر نتایج به سال:
A fast two-vector Phase-locked loops (PLL) control has been proposed to the phase and frequency of grid voltage using 48-pulse switching. The novel controller senses shift as a deviation by load locked positive sequence. was designed track angle kept within satisfying rang at all time. PI- obtain desired performance PLL. PLL voltage. test results shows that new design can response sequence betw...
purpose : evaluation of efficacy of memantine (n-methyl-d-aspartate receptor antagonist) on visual function of patients with acute non-arteritic ischemic optic neuropathy (naion). methods : the study was conducted as interventional case series from november 2005 through november 2006 in farabi eye hospital . twenty-two patients with acute naion of less than 8 weeks duration entered the study. m...
The authors assessed the value of body mass index (BMI) correction of two electrocardiographic criteria in improving detection of left ventricular hypertrophy (LVH) and prediction of cardiovascular and all-cause mortality in the Italian study Pressioni Arteriose Monitorate E Loro Associazioni (PAMELA) population. At entry, 1549 patients underwent diagnostic tests, 24-hour ambulatory blood press...
In this paper, we model statistical correlation between overshooting effect and propagation delay time in nano-CMOS technology considering the influence of intrinsic parameter fluctuations caused by discreteness charge granularity matter. The impact input slew rate, output capacitive load, supply voltage on is comprehensively studied. Moreover, propose two alternative approaches which are capab...
Introduction In radiography, dose and image quality are dependent on radiographic parameters. The problem is caused from incorrect use of radiography equipment and from the radiation exposure to patients much more than required. Therefore, the aim of this study was to implement a quality-control program to detect changes in exposure parameters, which may affect diagnosis or patient radiation do...
On the development of flexible electronics, a highly flexible nonvolatile memory, which is an important circuit component for the portability, is necessary. However, the flexibility of existing nonvolatile memory has been limited, e.g. the smallest radius into which can be bent has been millimeters range, due to the difficulty in maintaining memory properties while bending. Here we propose the ...
We report herein the concept of using a supramolecular platform on which dendrimers can be immobilized to result in tunneling junctions formed from assemblies with well-defined structures. In this way, the rectification can be controlled by changing only the chemical structure of the termini of the dendrimers, while minimizing the changes of the whole supramolecular assemblies. This method make...
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