The present invention relates to a nano-structured surface, including the base layer, the base layer and the large number of fixed nanoparticles. The surface of the water contact angle greater than 145 degrees. The invention also relates to a method for preparing nano-structured surface in situ, inc.....
[Detail]
The invention provides a microneedles array, a method for manufacturing the microneedles array and a die for manufacturing the microneedles array. The microneedles array comprises a base and a plurality of microneedles which are integrated with the base, wherein a liquid storage cavity is arranged i.....
[Detail]
The present invention provides an optical fiber having the gas laser and the laser optical fiber ring laser gyroscopes. The optical fiber comprises a gas laser excitation gas, the excitation source and the optical cavity, characterized in that the optical cavity by the hollow fiber and single mode f.....
[Detail]
The utility model relates to an electronic device for helping blind walking and discriminating obstacles, which is worn on a head of a user. The utility model comprises an ultrasonic emission sensor, two ultrasonic receiving sensors, a control circuit which can generate ultrasonic signals, receive u.....
[Detail]
The invention relates to a two-dimension displacement estimation method of elasticity imaging, which comprises the following steps: carrying out two-dimension initial displacement estimation on a first radio frequency frame and a second radio frequency frame of an ultrasonic pattern to be treated by.....
[Detail]
| |< <- | [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] | -> >| |
