Abstract: The invention relates to the field of medicinal chemistry, in particular to a substituted diaryl compound shown as a formula (I), a preparation method of the substituted diaryl compound, a medicinal preparation containing the substituted diaryl compound and medical application of the substituted diaryl compound. Pharmacological test results show that the substituted diaryl compound disclosed by the invention has a good inhibition effect on cells of human lung cancer (A549), human ovarian cancer (SKOV3), human melanoma (A375) and human colon cancer (LOVO).

Abstract: A layered coding method based on high order modulation comprising: S1: inputting serial data flow from a serial data input end into a serial-to-parallel converter; S2: inputting the data flow treated by the serial-to-parallel converter into the a multi-layer coder; S3: correlating the coders at individual layers with each other and transmitting information based on high order modulation; S4: inputting the data flow treated by the coders at individual layers into a modulator for modulation mapping processing; S5: outputting the data flow from the output end of the modulator.

Abstract: A system and a method for measuring the focus position of high-power laser are disclosed. The system includes a micro-controller, a stepping motor driver, an electric lifting platform, an electric rotation platform, a metal target, a displacement sensor, a photoelectric sensor and an ADC module. The system uses a laser to irradiate the metal target, which is moved upward and downward, to obtain the best ablation point through the ultraviolet radiation emitted on it.

Abstract: This present invention provides a novel photoconductive semiconductor switch (PCSS) comprising: a semi-insulating substrate, an anode formed on the upper surface of said semi-insulating substrate, a first n-type doped layer formed on the lower surface of said semi-insulating substrate, a p-type doped layer formed on said first n-type doped layer, a second n-type doped layer formed on said p-type doped layer, a cathode formed on said second n-type doped layer, several recesses facing towards said first n-type doped layer and vertically extending into a part of said first n-type doped layer, an insulating layer formed on said second n-type doped layer and on the walls and the bottoms of said recesses, a gate electrode consisting of two parts, one part of the which formed on said insulating layer on the walls and the bottoms of recesses, and the other part of the which formed on a part of the insulating layer on the second n-type doped layer for electrically connecting the part of the gate electrode on the reces

Abstract: This present invention provides a novel photoconductive semiconductor switch (PCSS) comprising: a semi-insulating substrate, an anode formed on the upper surface of said semi-insulating substrate, a first n-type doped layer formed on the lower surface of said semi-insulating substrate, a p-type doped layer formed on said first n-type doped layer, a second n-type doped layer formed on said p-type doped layer, a cathode formed on said second n-type doped layer, several recesses facing towards said first n-type doped layer and vertically extending into a part of said first n-type doped layer, an insulating layer formed on said second n-type doped layer and on the walls and the bottoms of said recesses, a gate electrode consisting of two parts, one part of the which formed on said insulating layer on the walls and the bottoms of recesses, and the other part of the which formed on a part of the insulating layer on the second n-type doped layer for electrically connecting the part of the gate electrode on the reces

Abstract: Provided is a generalized Recursive STTC (Space-Time Trellis Code) encoder which can improve diversity gain and coding gain in terms of transmission without increasing circuit complexity in a transmission system by forming an internal encoder of a multi-antenna mobile telecommunication system using a Recursive Systematic Convolutional code (RSC) block having two output ends to form a systematic ineral encoder. In addition, the generalized RSTTC encoder has a ratio of input data to output data (n?1):n by using a plurality of parallel RSC blocks each having two output ends. Thus, flexibility can be given to the size of data input to each RSC block and a transmission data rate can be improved in the internal encoder of a transmission system.