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This paper presents a novel compact multi-spectral lens array and describes its application in assisting color blinds. The lens array consists of 9 microlens, and each lens is coated with a different color filter. Thus, it can capture different light bands, including red, orange, yellow, green, cyan, blue, violet, near-infrared and the entire visible band. First, the fabrication process is described...
Centrifugal microfluidics has received great interests due to its advantages in turn of highly parallelization, free of external actuation, etc. This work provided a way to simulate and design centrifugal microfluidic droplet formation devices. Flow rate and droplet breakup on a rotating disc were calculated by COMSOL Multiphysics 4.4. The effect of rotation frequency and channel geometry on the size...
In this study, isotropic wet etching technology has been developed to achieve the pyramidal needle structures on one side polished chemical pure titanium substrate. Different etchants, mask materials and substrate materials combinations were investigated respectively for process optimization. A steady etch rate in excess of 2 mum/min has been achieved with sputtered Ni mask. For the first time, bulk...
Nanostructured titania (NST) is attracting more and more attention due to its porousness and high surface to volume ratio. A novel process to fabricate integrated NST thin film at low temperature (80-90??C) is presented. NST features were formed by oxidizing Ti films in aqueous hydrogen peroxide. The optimal conditions of aqueous oxidation are: 85??C, aqueous 10% H2O2 solution, 20 min of water bath...
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