نتایج جستجو برای: operation phase
تعداد نتایج: 798507 فیلتر نتایج به سال:
The accurate prediction of wellbore temperature distribution helps to accurately estimate well pressure profile and bottom-hole pressure (BHP) which is important in the under-balanced drilling (UBD) operation. In this paper effect of temperature variation due to heat transfer of drilling fluid with the formation and also oil and gas production from the reservoir into the annulus in under-balanc...
This paper proposes a reflection-type wideband 360 ° analogue phase shifter. The phase shifter employs a branchline coupler circuit to achieve a wideband operation and a varactor-diode circuit to achieve a wide phase-shift range. Analytical formulas are derived to optimize the parameters in the coupler circuit for wideband operation and reduced attenuation ripple, and in the varactor circuit to...
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Phase change memory has become known and most advanced resistive technology to meet the consumer's applications. It is a non-volatile random access memory. plays vital role in order overcome increasing demand of powerful data storage devices. In present paper, advantages over other memories have been discussed detail. This review focuses on device operation PCM. The current challenges future pr...
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