Minghui Tang

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Minimum shift keying (MSK) has been widely used in fiber optical communication and free-space optical communication. In order to introduce MSK into satellite laser communication, the bit-error rate (BER) performance of the MSK scheme is investigated in uplink communications under the influence of atmospheric turbulence consisting of weak fluctuation and(More)
Currently, centrifuge apparatus is primarily an end-point sample processing piece of equipment. The lack of real-time active control has imposed an inherent limitation such that many delicate sample processing steps requiring immediate and accurate intervention have never been possible. We report herein a motor-assisted chip-in-a-tube (MACT) platform in(More)
Optical tweezers are a well-established tool for manipulating small objects. However, their integration with microfluidic devices often requires an objective lens. More importantly, trapping of non-transparent or optically sensitive targets is particularly challenging for optical tweezers. Here, for the first time, we present a photon-free trapping(More)
In this paper, an in-line, low-cost, miniature and portable spectrophotometric detection system is presented and used for fast protein determination and calibration in centrifugal microfluidics. Our portable detection system is configured with paired emitter and detector diodes (PEDD), where the light beam between both LEDs is collimated with enhanced(More)
Bit-error rate (BER) performance of on-off keying (OOK), differential phase-shift keying (DPSK), and differential quadrature phase-shift keying (QDPSK) are discussed under effect of beam wander, scintillation, and detector noise in space laser uplink communication system. Actually, DPSK performs better than OOK and QDPSK when the beam wader is considered.(More)
Centrifugal microfluidic or lab-on-a-disc platforms have many advantages over other microfluidic systems. These advantages include a minimal amount of instrumentation, the efficient removal of any disturbing bubbles or residual volumes, and inherently available density-based sample transportation and separation. Centrifugal microfluidic devices applied to(More)
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