Abstract: A voltage-adaptive laser driving circuit and a control method thereof. The circuit includes: a switching power supply, a laser, a constant current driving circuit, a current setting circuit, an MCU control circuit, a voltage acquisition circuit and a voltage setting circuit; the switching power supply is connected to the laser and the voltage setting circuit respectively and used for providing electrical energy for the laser and the voltage setting circuit; and the laser is connected to the switching power supply and the constant current driving circuit respectively and used for generating laser light.

Abstract: A stroboscopic stepped illumination defect detection system for appearance defect detection of a product is provided. The system includes an image extraction unit, a brightness adjustment unit, a data processing unit, and a stroboscopic control unit. The image extraction unit is connected to the stroboscopic control unit and used for obtaining stable and clear images in various transmission/reflection visual bright fields/dark fields; and the brightness adjustment unit is connected to the stroboscopic control unit and used for setting various transmission/reflection visual bright fields/dark fields and converting in the various transmission/reflection visual bright fields/dark fields.

Abstract: The present application discloses an ultra-micro defect detection apparatus and a detection method thereof. The apparatus includes an imaging module, a light source module, a filtering module, and a mounting platform; the imaging module further includes a camera, an imaging lens, and an objective lens; the camera, the imaging lens, and the objective lens are sequentially and vertically arranged from top to bottom; the light source module further includes a collimator, a light source generator, and a beam splitting mirror; the light source generator is connected to the beam splitting mirror, and the collimator is mounted between the light source generator and the beam splitting mirror; the filtering module further includes a spatial filter, and the spatial filter is mounted between the imaging lens and the objective lens.

Abstract: Disclosed herein are synthetic particles that are shaped like red blood cells. The particles include pectin and oligochitosan and optionally a bioactive agent. In addition, methods of making the synthetic particles via electrospray techniques are provided.

Abstract: The present disclosure discloses an electric vehicle battery replacement system comprising a vehicle-mounted battery driving device and a battery conveying device outside of the vehicle. The vehicle-mounted battery driving device comprises a drive roller configured to carry a battery and connected with a drive motor. The battery conveying device outside of the vehicle comprises three conveying belts each connected to one of three conveying motors, respectively. The drive roller, a first conveying belt, and a second conveying belt are arranged successively on a same horizontal plane along a direction of conveying. The third conveying belt is located above the second conveying belt and connected with the first conveying belt via a sliding plate. One end of the sliding plate connects flexibly to a front end of the third conveying belt, and the other end of the sliding plate is placed on the first conveying belt.

Abstract: In accordance with certain embodiments of the present disclosure, a method for formation of a microcapsule is described. The method includes encapsulating a cell in a microcapsule, the microcapsule having a diameter of less than about 100 ?m. The method further includes coating the microcapsule with chitosan and alginate.