Abstract: This application provides a gesture recognition method, and relates to the field of man-machine interaction technologies. The method includes: extracting M images from a first video segment in a video stream; performing gesture recognition on the M images by using a deep learning algorithm, to obtain a gesture recognition result corresponding to the first video segment; and performing result combination on gesture recognition results of N consecutive video segments including the first video segment, to obtain a combined gesture recognition result. In the foregoing recognition process, a gesture in the video stream does not need to be segmented or tracked, but phase actions are recognized by using a deep learning algorithm with a relatively fast calculation speed, and then the phase actions are combined, so as to improve a gesture recognition speed, and reduce a gesture recognition delay.

Abstract: The present disclosure provides a method and a system for testing semiconductor device. The method includes providing a device under test (DUT) having an input terminal and an output terminal; applying a voltage having a first voltage level to the input terminal of the DUT during a first period; applying a stress signal to the input terminal of the DUT during a second period subsequent to the first period; obtaining an output signal in response to the stress signal at the output terminal of the DUT; and comparing the output signal with the stress signal. The stress signal includes a plurality of sequences, each having a ramp-up stage and a ramp-down stage. The stress signal has a second voltage level and a third voltage level.

Abstract: A phenyl-containing compound, an intermediate thereof, a preparation method therefor and an application thereof. Provided is a compound represented by formula I or a pharmaceutically acceptable salt thereof, where R1, R2, R3, R4 and R5 are independently hydrogen, C1-C6 alkyl, C1-C6 alkoxy or C(?O)OR8; where R8 is C1-C4 alkyl; R6 is (II), (III) or (IV); and R7 is —OH, —NH2, —NHCH3, —N(CH3)2 or C1-4 alkoxy. The compound has a low critical micelle concentration (CMC) and good dilution resistance and is capable of enclosing an insoluble drug to form a small-molecule micelle having a high drug loading capacity and good stability.

Abstract: The present disclosure provides a sense amplifier, a memory, and a method for controlling a sense amplifier, relating to the technical field of semiconductor memories. The sense amplifier comprises: an amplification module; and a control module, electrically connected to the amplification module; wherein, in an offset compensation stage of the sense amplifier, the control module is used to configure the amplification module to comprise a diode structure, a current mirror structure, and an inverter with an input and an output connected together; and in a first amplification stage of the sense amplifier, the control module is used to configure the amplification module as an inverter. The present disclosure can realize the offset compensation of the sense amplifier, thereby improving the performance of semiconductor memories.

Abstract: A method of scheduling input/output operations for a storage system including determining a deadline for a storage operation, wherein the deadline is dependent on an expected latency of the storage operation; adding the storage operation to a queue of storage operations; and reordering the queue dependent upon the deadline of the storage operation and one or more deadlines of one or more storage operations in the queue of storage operations.

Abstract: Provided by a bandpass filter circuit and a multiplexer. The bandpass filter circuit includes at least one electromagnetic LC filter circuit and at least one acoustic wave resonance unit. The at least one acoustic wave resonance unit includes an input port, an output port, at least one circuit element and at least three resonators. The at least one electromagnetic LC filter circuit is electrically connected to the at least one acoustic wave resonance unit, and the at least three resonators include at least one first resonator and at least one second resonator. In a case where the at least one first resonator includes one first resonator, the first resonator is connected in series between the input port and the output port.

Abstract: Provided are balun circuit structure and balun device, the balun circuit structure comprises unbalanced terminal, first and second balanced terminals, grounded power terminal, first, second, third and fourth inductors. The first terminal of the first inductor is connected to the first terminal of the second inductor, the second terminal of the first inductor is connected to the unbalanced terminal, the second terminal of the second inductor is open-circuited, the first terminal of the third inductor and the first terminal of the fourth inductor are connected to the grounded power terminal, the second terminal of the third inductor is connected to the first balanced terminal, the second terminal of the fourth inductor is connected to the second balanced terminal, the first, second, third and fourth inductors are located in different planes, respectively, the first inductor is coupled to the third inductor, and the second inductor is coupled to the fourth inductor.

Abstract: A storage system includes: a memory, configured to write or read a plurality of pieces of data during a read-write operation, the plurality of pieces of data being divided into M bytes, and each byte having N pieces of data; and an encoding circuit, configured to in the encoding stage, generate X first check codes based on the two or more pieces of data in each byte, generate Y second check codes based on all data of two or more bytes of the M bytes in the encoding stage, and generate a third check code based on the plurality of pieces of data, the X first check codes and the Y second check codes. The first check codes, the second check codes and the third check code are used to determine an error state of the plurality of pieces of data.

Abstract: The present disclosure relates to the preparation of a highly pure cannabidiol compound by a novel synthesis route. The cannabidiol compound can be prepared by an acid-catalyzed reaction of a di-halo olivetol with menthadienol, followed by two crystallization steps. The highly pure cannabidiol compound is produced in high yield, stereospecificity, or both, and shows exceedingly low levels of ?-9-tetrahydrocannabinol at the time of preparation and after storage.

Abstract: Embodiments of the present disclosure provide a test method and apparatus for a control chip, an electronic device, relating to the field of semiconductor device test technology. The method includes: reading first test vectors stored in a first target memory chip; sending the first test vectors to the control chip; receiving first output information returned by the control chip in response to the first test vectors; and acquiring a first test result of the control chip based on the first output information and the first test vectors corresponding to the first output information. By means of the technical solutions provided in the embodiments of the present disclosure, a memory chip can be used for storing test vectors for a control chip, so that a storage space for test vectors can be enlarged, and the test efficiency can be increased.

Abstract: An error correction system is disclosed. The error correction system is applied to a storage system. The error correction system generates X first operation codes, Y second operation codes and a third operation code based on the storage system. The error correction system includes an error state determining circuit and M decoding circuits. The error state determining circuit is configured to identify a current error state. When a plurality of pieces of data have a 1-bit error, the M decoding circuits are configured to execute decoding processing on the X first operation codes and the Y second operation codes, to obtain whether there is erroneous data in the bytes corresponding to the decoding circuits and locate a bit to which the erroneous data belongs.

Abstract: The module structure includes a substrate, a passive element, metal columns and a chip. The passive element, the metal columns and the chip are located on a same side of the substrate. The passive element is located between the substrate and the film where the metal columns and the chip are located. The following applies: the vertical projection of the chip on the substrate overlaps a line segment or closed figure formed by endpoints constituted by the vertical projections of the metal columns on the substrate; the vertical projection of the passive element on the substrate overlaps the line segment or closed figure formed by the endpoints constituted by the vertical projections of the metal columns on the substrate; or the vertical projection of the passive element on the substrate overlaps the vertical projection of the chip on the substrate.

Abstract: Embodiments of the present disclosure provide a test method and apparatus for a control chip, and an electronic device, which relate to the field of semiconductor device test technologies. The control chip includes a built-in self-test BIST circuit. The method is performed by the BIST circuit. The method includes: reading first test vectors stored in a first target memory chip; sending the first test vectors to the control chip; receiving first output information returned by the control chip in response to the first test vectors; and acquiring a first test result of the control chip based on the first output information and the first test vectors corresponding to the first output information. By means of the technical solutions provided in the embodiments of the present disclosure, so that a storage space for test vectors can be enlarged, and the test efficiency can be increased.

Abstract: The present disclosure provides a sense amplifier, a memory, and a method for controlling a sense amplifier, relating to the technical field of semiconductor memories. The sense amplifier comprises: an amplification module; and a control module, electrically connected to the amplification module; wherein, in an offset compensation stage of the sense amplifier, the control module is used to configure the amplification module to comprise a diode structure, a current mirror structure, and an inverter with an input and an output connected together; and in a first amplification stage of the sense amplifier, the control module is used to configure the amplification module as an inverter. The present disclosure can realize the offset compensation of the sense amplifier, thereby improving the performance of semiconductor memories.

Abstract: The present disclosure provides a method for correcting a light intensity measurement value is provided. The method includes: emitting detection light into a measured object; measuring a light intensity measurement value at a measurement position, and measuring light intensity of photons at a benchmark position as a light intensity reference value. A sensitivity of the light intensity of photons to a concentration change of a specific substance in the measured object is less than or equal to a preset threshold, and a change rate of the light intensity at the measurement position with a concentration of the specific substance in the measured object is greater than a change rate of the light intensity at the benchmark position with the concentration of the specific substance; correcting the light intensity measurement value by using the light intensity reference value. The present disclosure further provides a concentration measurement device.

Abstract: The present disclosure describes techniques of generating videos. The techniques comprise acquiring a target video frame among a plurality of frames of a target video; acquiring at least one comment file corresponding to the target video frame, wherein the at least one comment file comprises a plurality of pieces of comment data; determining a mask file corresponding to the target video frame; determining a display coordinate of each of the plurality of pieces of comment data in the target video frame; determining each of the plurality of pieces of comment data is hidden or rendered into the target video frame based on the mask file and the display coordinate of each piece of comment data; and generating a new frame corresponding to the target frame, wherein the new frame comprises at least one subset of the plurality of pieces of comment data embedded in the target frame.

Abstract: The present disclosure describes techniques of processing video. The techniques comprise obtaining a video to be transcoded, the video comprising a plurality of frames; setting a test object in each of the plurality of frames of the video to be transcoded; transcoding the video using a predetermined video transcoding mechanism and obtaining the transcoded video; extracting a test object from each of a plurality of frames of the transcoded video; and determining a transcoding result based at least in part on the test object extracted from each of the plurality of frames of the transcoded video.

Abstract: An in-situ square sample acquisition device and method for a bond contact test of a surrounding rock and a shotcrete layer are provided, the device includes a supporting shell, a fixing structure, hollow adjusting bolts and two borehole positioning frames, a guide hole is provided in a middle of the supporting shell, the frames are slidably fit in the guide hole, a plurality of positioning holes are provided in side walls of each of the frames, and the positioning holes in different frames are distributed in a staggered manner, four corners of the supporting shell are connected with four hollow adjusting bolts respectively, one end of each of the hollow adjusting bolts is fixedly provided with an adjusting nut, four fixing lugs are provided in four corners of each frame respectively, and the fixing structure includes four connecting bolts and four nuts.

Abstract: A quality assessment method for automatic annotation of speech data is provided and includes: building a base rule-base of automatically annotated speech data based on quality key indicators; reading automatically annotated speech data to be detected, and performing quality detection on the automatically annotated speech data to be detected according to the quality key indicators to thereby complete quality measurement; updating an automatically annotated speech dataset according to a result of the quality measurement; and importing the automatically annotated speech dataset after the updating into the base rule-base. The shortcomings of using traditional quality assessment methods for data annotation in automatic machine annotations can be overcome, and it can play a very positive supporting role in promoting the development of ethnic minority speech intelligence.

Abstract: Introduced here are approaches for identifying the optimal send time for messages by accounting for hidden confounders, such as the content of those messages, delivery channel, etc. These approaches use a causal inference framework to discover and then remove the impact of hidden confounders. These approaches may be employed by a marketing and analytics platform (or simply “marketing platform”) that may be used to design, implement, or review digital marketing campaigns. The marketing platform can consider the send time as a treatment and then employ machine learning (ML) models that consider the send time, features of the recipient, and hidden confounders to produce a ranked series of send times with the effect of the hidden confounders marginalized. Approaches to performing offline evaluations that mimic A/B tests using data related to existing field experiments are also introduced here.