The present invention relates to a strain gauge and methods of making such wherein the gauge contains a doped polymeric fluid suitable for measuring elongations of more than 10%.
[更多]
The invention provides a cascade controller with analog single-phase active power filter, which includes a control circuit and connected to the main circuit, the control circuit includes a first proportional integral controller, a multiplier, a subtractor, feedforward control , a second PI controlle.....
[更多]
希望有一种能针对一组不同的β－内酰胺类抗生素筛选细菌以鉴定β－内酰胺酶的工具。一种将指示分子导入β－内酰胺酶而形成的生物传感器可达到该目的，但要求导入的指示分子基本上不会削弱蛋白质结合的亲和力，以保证较高的灵敏度。本发明研发了一种经修饰的β－内酰胺酶，该β－内酰胺酶的Ω环上或Ω环的外侧但接近其活性部位的残基被活性残基置换。
[更多]
The invention provides a side emitting light emitting diode light source within the lens. Its role is to change the light emitting diode chip emitting direction, most of the light from the side of the light emitting diode chip along the central vertical axis of the very small angle inward gathered a.....
[更多]
The invention provides a side emitting light emitting diode light source within the lens. Its role is to change the light emitting diode chip emitting direction, most of the light from the side of the light emitting diode chip along the central vertical axis of the very small angle inward gathered a.....
[更多]
| |< <- | [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] | -> >| |
