In this paper, we introduce a novel cylindrical channel that generates coaxial flow without using glass microcapillary or complicated silicon processing, and we demonstrate the fabrication of microparticles and microfibers using this channel. The simple fabrication process for cylindrical channels employs the deflection of free-standing thin PDMS membranes. Using this channel, alginate micropar...

the steady state effect of vertical fins is assessed on a photovoltaic/thermal solar air heater having a double pass configuration in which fins are placed in the lower channel perpendicular to the direction ofair flow. air passes through the upper channel of the air heater and before passing in the opposite direction through the lower channel. the effects of design, climatic and operating para...

introduction atrial standstill is a rare condition, characterized by absence of atrial electrical and mechanical activity evident in surface electrocardiography echocardiography, or fluoroscopy, which is associated with unresponsiveness of atria to maximal output electrical stimulation. this condition can be present with thromboembolic complication, low cardiac output, and sometimes palpitation...

Hardware problems are the most detrimental issues to channel estimates in wireless communication systems. Because of enormous number antennas at base station (BS) cellular massive multiple-input multiple-output (MIMO) systems and because one radio frequency (RF) chain per antenna is required, hardware impairments such will be quite severe. Many research publications have used a quality-cost tra...

In wireless channel the noise has a zero mean. This channel property can be used in the enhancement of the noise performance in the digital receivers by oversampling the received signal and calculating the decision variable based on the time average of more than one sample of the received signal. The averaging process will reduce the effect of the noise in the decision variable that will approa...