نتایج جستجو برای: foc
تعداد نتایج: 604 فیلتر نتایج به سال:
Situational crime deterrence measures like CCTV are not always associated with reductions in fear of crime. This study explores this unexpected finding by investigating the interaction between target type and the presence of a CCTV camera, in order to test the effect this has on impressions of the target and corresponding fear of the location the target was shown in. Participants (n=120) were s...
There is now ample evidence that most perhaps all galactic spheroids host a supermassive BH at their center. This has been assessed using a variety of observational techniques, from stellar and/or gas dynamics to megamasers. Yet another promising technique is offered by the case of the Virgo elliptical NGC 4552, in which early HST/FOC observations revealed a central low-luminosity flare. Subseq...
This paper deals with realization and implementation of a new type fractional order controllers (FOC) based on programmable logic controllers series BR 2005 and their utilization to temperature control with big time constant. As the object was used electrical heater, where controlled value is the temperature of hot air, which is fluctuant from heater.
در بهینه سازی سیستم تعلیق باید بین خواسته های متضاد راحتی سفر و فرمانپذیری سازشی برقرار کرد. در سالهای اخیر، جرک (jerk) نیز به عنوان یکی از شاخص های راحتی سفر در نظر گرفته شده است که به این روش ، کنترل بهینه جرک (joc) گفته می شود. هدف این پروژه بررسی تاثیر جرک در طراحی سیستم تعلیق فعال بهینه برای مدل 1/4 خودرو با دو درجه آزادی و مقایسه آن با روش کنترل بهینه نیرو(foc) و سیستم تعلیق غیرفعال است ....
Electro-cortical activity in patients with epilepsy may show abnormal rhythmic transients in response to stimulation. Even when using the same stimulation parameters in the same patient, wide variability in the duration of transient response has been reported. These transients have long been considered important for the mapping of the excitability levels in the epileptic brain but their dynamic...
Fusarium wilt caused by Fusarium oxysporum f. sp. conglutinans (FOC) is a destructive disease of Brassica crops, which results in severe yield losses. There is little information available about the mechanism of disease resistance. To obtain an overview of the transcriptome profiles in roots of R4P1, a Brassica oleracea variety that is highly resistant to fusarium wilt, we compared the transcri...
Squirrel-cage induction motors (IM) are the workhorse of industries for variable speed applications in a wide power range that covers from fractional watt to megawatts. However, the torque and speed control of these motors is difficult because of their nonlinear and complex structure. In the past five decades, a lot of advanced control schemes for IM drive appeared. First, in the 1960’s, the pr...
Introduction: Electro-cortical activity in patients with epilepsy may show abnormal rhythmic transients of different waveforms in response to stimulation. These transients have long been considered important for the mapping of the excitability levels in the epileptic brain but their dynamic mechanism is still not well-understood. Methods: To understand the occurrence of abnormal transients dyna...
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