نتایج جستجو برای: low turn on voltage
تعداد نتایج: 8988319 فیلتر نتایج به سال:
هدف مطالعه کنونی تعیین هنجارهای حاکم بر ترجمه ی آهنگهای کارتونها میباشد . به این منظور 30 آهنگ انگلیسی کارتونها و دوبله ی فارسی آنها انتخاب و بررسی شدند. ابتدا بر اساس مدل,low (2013) ترجمه آهنگها به سه دسته تقسیم شدند: 1) .song replacement (3 ,song adaptation (2 ,song translation سپس استراتژیهایی که مترجمین در جهت غلبه بر محدودیتهای ترجمه آهنگها به کار برده بودند بر اساس مدل ,low (2013) تعیین ش...
the current study examined iranian undergraduate efl students’ willingness to communicate with regard to their vocabulary knowledge. in general, participants were somewhat willing to communicate in english. the total mean score of 730 university students’ perception of willing to communicate was 83.53 out of 135. results, regarding four parts of willingness to communicate, revealed that part...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
this paper proposes a low voltage (±0.55v supply voltage) low power (44.65µw) high common mode rejection ratio (cmrr) differential amplifier (d.a.) with rail to rail input common mode range (icmr), constant transconductance (gm) and enhanced frequency performance. its high performance is obtained using a simple negative averaging method so that it cancels out the common mode input signals at th...
A new low-leakage-inductance low-resistance design approach to low-voltage high-power isolated boost converters is presented. Very low levels of parasitic circuit inductances are achieved by optimizing transformer design and circuit lay-out. Primary side voltage clamp circuits can be eliminated by the use of power MOSFETs fully rated for repetitive avalanche. Voltage rating of primary switches ...
the present study seeks to determine the effect of explicit instruction of metacognitive strategies on iranian high school students’ reading comprehension ability. it also attempts to investigate the relationship between the learners reading comprehension and metacognitive strategies. furthermore, the study investigates whether iranian efl female high school students are high, medium, or low me...
The electrical characteristics of InP/In0.24Ga0.76As0.73Sb0.27/In0.53Ga0.47As double heterojunction bipolar transistor (DHBT) are investigated. The study is based on energy balance (EB) transport model and TCAD SILVACO device simulator. InP/In0.24Ga0.76As0.73Sb0.27 DHBT have a low Emitter-Base conduction band discontinuity EC and a minimum base bandgap energy EG among the entire composition ran...
Low turn-on field of 2.3 V/µm was found for the emission current density of 10 µA/cm2 from 2D porous ZnO nanosheets. High current density of 0.76 mA/cm2 was drawn at an applied field of 4.1 V/µm. The observed low turn-on field of porous ZnO nanosheets has been found to be superior to the other ZnO nanostructures reported in the literature. Also, the emission current stability over a period of 3...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
The need for high voltage solid-state power electronic devices for advanced power distribution and energy conversion has grown rapidly in recent years, especially for pulsed power applications that require high turn-on di/dt. However, current power converters built with silicon (Si) switches are quite bulky and inefficient, making their utilization difficult in practical energy conversion and p...
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