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A new method for the breakup of a digital microfluid (a discrete droplet) is presented and a device for splitting the digital microfluid is fabricated on a 128?? yx-LiNbO3 piezoelectric substrate using microelectronic technology. Together with the surface tension of the digital microfluid, the inertia of acoustic streaming caused by the sudden disappearance of the electric signal for generating the...
A microreactor is a key operation unit in a microfluidic device. However, lots of biochemical reactions do not occur at room temperature. Thus, a heating unit in these microfluidic devices is indispensable. A new microreactor with surface acoustic wave (SAW) as an energy source is presented. The microreactor has three elements, including surface acoustic wave heating source, two PDMS micro-vessels...
A microfluidic switch is indispensable for a programmable paper-based microfluidic device. A new paper-based microfluidic switch, which could be activated by surface acoustic wave (SAW), was presented. The presented microfluidic switch was consisted of a PDMS micro-shelf and a three-fold paper channel. The PDMS micro-shelf was mounted on a (XY)/128° LiNbO3 substrate, on which a pair of interdigital...
This study presents the research result on estimating winter wheat yield in North China Plain, by assimilating multi- temporal Landsat TM images into the GIS-based EPIC model (Erosion Productivity Impact Calculator, recently renamed Environmental Policy Integrated Climate). The results indicate that the assimilation of LAI maps retrieved from remotely sensed data has improved the yield simulation...
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