نتایج جستجو برای: field 2
تعداد نتایج: 3160533 فیلتر نتایج به سال:
This paper presents a new technique for detecting resistive open defects in FPGAs. This technique is based on the reconfigurability feature of FPGAs. Using this technique, the delay of a defective path is increased several times more than the delay of the fault-free path, resulting in a higher resolution in detectability of resistive open defects in FPGAs, even at lower tester speed. Various de...
The flagellar frequency and waveform of Euglena were analyzed under full illumination (420-700 nm) and in a restricted wavelength band (530-700 nm) when the cells were in a medium containing Mg2+ or had been microinjected with Mg2+, Mn2+, or Ca2+ in solution. Magnesium abolished the change in flagellar frequency and the reversal in waveform that cells exhibit when illuminated by a 530-700 nm wa...
آلتراسوند یکی از روش های تصویربرداری است که هیج ضرری برای بدن ندارد، بنابرین نسبت به سایر دستگاه های پزشکی از محبوبیت و کاربرد بیشتری برخوردار است. طراحی بورد front-end یکی از چالشهای بزرگ در طراحی دستگاه سونوگرافی است که در آن سیگنالهای مدوله شده از بدن با دامنه بسیار کم باز می گردند که می توانند در رنج فرکانسی 2 تا 12 مگاهرتز کار کنند. تکنولوژی روز سعی در کوچک کردن مدارهای الکترونیکی و کمینه ...
Newtonian limit of the singular f (R) gravity in the Palatini formalism. Abstract Recently D. Vollick [Phys. Rev. D68, 063510 (2003)] has shown that the inclusion of the 1/R curvature terms in the gravitational action and the use of the Palatini formalism offer an alternative explanation for cosmological acceleration. In this work we show not only that this model of Vollick does not have a good...
The concept of Supervisory Control and Data Acquisition (SCADA) system was introduced in the late sixties and subsequently the Energy Management System (EMS) solution with set of functionalities that relied on SCADA data was introduced in the seventies. This EMS design was based on the notion that power system goes through distinct states such as normal, alert, emergency and restorative, and he...
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