Abstract: The present invention provides a magnetic bead purification system, including: a housing; a liquid path treatment system provided inside the housing, the liquid path treatment system being connectable to a reagent barrel and a waste liquid barrel; a sample addition needle group connected to the liquid path treatment system, the sample addition needle group being movable within the housing and connected to the liquid path treatment system, so as to receive a reagent from the liquid path treatment system or to discharge a waste liquid to the liquid path treatment system; a purification magnetic separation system, including a magnetic element, the purification magnetic separation system being controllable to apply a lateral magnetic force to a purification treatment position inside the housing or stop the application of the magnetic force by the magnetic element; and a purification station system movable between a purification treatment position inside the housing and a loading position outside the housing, the

Abstract: A biological valve material and preparation method therefor and use thereof are provided. The preparation method includes step S100: chemically grafting first carbon-carbon double bonds with amino groups on the biological material, in which at least an aldehyde-based cross-linking is present; step S200: performing polymerization of carbon-carbon double bonds under an action of an initiator to obtain the biological valve material. This method forms more and larger polymer cross-linked networks through dual cross-linking, improving the cross-linking degree and anti-calcification performance of the biological valve material. While introducing carbon-carbon double bonds, additional functional groups are introduced to endow the biological valve material with new characteristics and further improve the performance.

Abstract: A current sensor includes: plate-shaped bus bars; a magnetic detection portion; and a shell holding the bus bars. The bus bars are arranged in a first direction. At least some of the bus bars have: a first conductor portion extending in the first direction; a second conductor portion connected to one end of the first conductor portion and extending in a second direction crossing the first direction; and a third conductor portion connected to the other end of the first conductor portion and extending in a third direction. The bus bars at least include first and second bus bars adjacent in the first direction, where the width of the first conductor portion is greater than the thickness thereof, and when viewed from the third direction, the first conductor portions of the first and second bus bars are spaced apart from each other by a certain distance in the second direction.

Abstract: A device determining method, an electronic device, and a computer-readable storage medium are provided. The method includes: determining a first angle of arrival (AOA) of a signal from a target device in a first direction and a second AOA of the signal in a second direction; acquiring a status of the signal between the terminal and the target device in response to determining that the first AOA and the second AOA are within a first preset angle range; and determining the target device as a device to be selected according to the status of the signal between the terminal and the target device.

Abstract: A method for evaluating a damage power of confined explosion, includes: determining a size of a confined case and a thickness of a target plate according to a requirement of evaluation on damage effectiveness of a warhead to establish an explosive damage effectiveness evaluation platform; calibrating parameters of the platform with a series of confined explosion tests of trinitrotoluene (TNT) bare charges in the case to form a relational map, in which a deflection of a mid-point of the target plate changes with a charge mass; obtaining a deflection of the mid-point of the target plate by detonating different warheads, forming different detonation atmosphere and forming different venting configuration in the case, and performing interpolation through the map to obtain an equivalent bare charge as an evaluation index. The method quantitatively evaluates the damage effectiveness of the warhead, and is not limited by the damage component.

Abstract: A method for evaluating a damage power of confined explosion, includes: determining a size of a confined case and a thickness of a target plate according to a requirement of evaluation on damage effectiveness of a warhead to establish an explosive damage effectiveness evaluation platform; calibrating parameters of the platform with a series of confined explosion tests of trinitrotoluene (TNT) bare charges in the case to form a relational map, in which a deflection of a mid-point of the target plate changes with a charge mass; obtaining a deflection of the mid-point of the target plate by detonating different warheads, forming different detonation atmosphere and forming different venting configuration in the case, and performing interpolation through the map to obtain an equivalent bare charge as an evaluation index. The method quantitatively evaluates the damage effectiveness of the warhead, and is not limited by the damage component.

Abstract: A method for employing a differentiable ranking based graph sparsification (DRGS) network to use supervision signals from downstream tasks to guide graph sparsification is presented. The method includes, in a training phase, generating node representations by neighborhood aggregation operators, generating sparsified subgraphs by top-k neighbor sampling from a learned neighborhood ranking distribution, feeding the sparsified subgraphs to a task, generating a prediction, and collecting a prediction error to update parameters in the generating and feeding steps to minimize an error, and, in a testing phase, generating node representations by neighborhood aggregation operators related to testing data, generating sparsified subgraphs by top-k neighbor sampling from a learned neighborhood ranking distribution related to the testing data, feeding the sparsified subgraphs related to the testing data to a task, and outputting prediction results to a visualization device.

Abstract: A method for employing a supervised graph sparsification (SGS) network to use feedback from subsequent graph learning tasks to guide graph sparsification is presented. The method includes, in a training phase, generating sparsified subgraphs by edge sampling from input training graphs following a learned distribution, feeding the sparsified subgraphs to a prediction/classification component, collecting a predication/classification error, and updating parameters of the learned distribution based on a gradient derived from the predication/classification error. The method further includes, in a testing phase, generating sparsified subgraphs by edge sampling from input testing graphs following the learned distribution, feeding the sparsified subgraphs to the prediction/classification component, and outputting prediction/classification results to a visualization device.

Abstract: A high spatial and temporal resolution synthetic aperture phase microscopy (HISTR-SAPM) system and methods are provided for sample imaging and metrology. The HISTR-SAPM system includes a sample-illumination path along which a first illumination beam propagates and a reference-beam path along which a second illumination beam propagates. A first digital micromirror device (DMD), a second DMD, and a first scanning objective lens are disposed in the sample-illumination path and at a first side adjacent to the sample. A second scanning objective lens passes the sample information to a beam splitter (BS), where the sample illumination beam and the reference-beam are combined to form an interferogram at a final image plane for imaging the sample. A Fourier spatial spectrum analysis and a synthetic aperture are then used to reconstruct a quantitative phase map of the sample with a high resolution and at a high-speed.

Abstract: A current sensor includes: plate-shaped bus bars; a magnetic detection portion; and a shell holding the bus bars. The bus bars are arranged in a first direction. At least some of the bus bars have: a first conductor portion extending in the first direction; a second conductor portion connected to one end of the first conductor portion and extending in a second direction crossing the first direction; and a third conductor portion connected to the other end of the first conductor portion and extending in a third direction. The bus bars at least include first and second bus bars adjacent in the first direction, where the width of the first conductor portion is greater than the thickness thereof, and when viewed from the third direction, the first conductor portions of the first and second bus bars are spaced apart from each other by a certain distance in the second direction.

Abstract: The present disclosure relates to an in-situ testing device including a measuring head, a drive mechanism, and a testing chamber. The testing chamber is provided with a first optical observation hole. The measuring head is provided with a second optical observation hole. The testing chamber is provided with an opening allowing the measuring head to pass. The testing chamber is further provided with a shielding door, and the drive mechanism is connected to the shielding door to drive the shielding door to move relative to the testing chamber, to open or cover the opening, thereby opening or closing the testing chamber.

Abstract: The present invention provides a magnetic bead purification system, including: a housing; a liquid path treatment system provided inside the housing, the liquid path treatment system being connectable to a reagent barrel and a waste liquid barrel; a sample addition needle group connected to the liquid path treatment system, the sample addition needle group being movable within the housing and connected to the liquid path treatment system, so as to receive a reagent from the liquid path treatment system or to discharge a waste liquid to the liquid path treatment system; a purification magnetic separation system, including a magnetic element, the purification magnetic separation system being controllable to apply a lateral magnetic force to a purification treatment position inside the housing or stop the application of the magnetic force by the magnetic element; and a purification station system movable between a purification treatment position inside the housing and a loading position outside the housing, the

Abstract: A split gate structure is disclosed. The split gate structure includes a first polysilicon, a characteristic oxide, and a second polysilicon sequentially disposed in a trench in a vertical direction upward from a bottom of the trench. An upper surface of the characteristic oxide has a height difference less than 1500 ? between a higher center portion and a lower periphery portion. The split gate structure effectively improves the breakdown performance and the IGSS performance. A power MOS device having the split gate structure and a manufacturing method of the split gate structure are also provided.

Abstract: A split gate structure is disclosed. The split gate structure includes a first polysilicon, a characteristic oxide, and a second polysilicon sequentially disposed in a trench in a vertical direction upward from a bottom of the trench. An upper surface of the characteristic oxide has a height difference less than 1500 ? between a higher center portion and a lower periphery portion. The split gate structure effectively improves the breakdown performance and the IGSS performance. A power MOS device having the split gate structure and a manufacturing method of the split gate structure are also provided.

Abstract: A method for adaptively identifying flash memory type includes driving a flash memory interface according to a predetermined configuration and a predetermined protocol of the flash memory interface to send a reading command to a flash memory module to obtain a flash memory identity by successfully reading the flash memory module; changing at least one of the configuration and the interface protocol of the flash memory interface then performing the obtaining the flash memory identity again until all preset adjustments have been tried; and storing the obtained flash memory identity and a firmware corresponding to the obtained flash memory identity to a designated address of a non-volatile memory when the flash memory module is successful read. The above automated method can solve the disadvantages of high cost and low manufacturing flexibility caused by conventional manual identification and re-burning of eFuses.

Abstract: A high spatial and temporal resolution synthetic aperture phase microscopy (HISTR-SAPM) system and methods are provided for sample imaging and metrology. The HISTR-SAPM system includes a sample-illumination path along which a first illumination beam propagates and a reference-beam path along which a second illumination beam propagates. A first digital micromirror device (DMD), a second DMD, and a first scanning objective lens are disposed in the sample-illumination path and at a first side adjacent to the sample. A second scanning objective lens passes the sample information to a beam splitter (BS), where the sample illumination beam and the reference-beam are combined to form an interferogram at a final image plane for imaging the sample. A Fourier spatial spectrum analysis and a synthetic aperture are then used to reconstruct a quantitative phase map of the sample with a high resolution and at a high-speed.

Abstract: The present disclosure provides a method for adaptively identifying flash memory type, comprising: driving a flash memory interface according to a predetermined configuration and a predetermined protocol of the flash memory interface to send a reading command to a flash memory module to obtain a flash memory identity by successfully reading the flash memory module; changing at least one of the configuration and the interface protocol of the flash memory interface then performing the obtaining the flash memory identity again until all preset adjustments have been tried; and storing the obtained flash memory identity and a firmware corresponding to the obtained flash memory identity to a designated address of a non-volatile memory when the flash memory module is successful read. The above automated method can solve the disadvantages of high cost and low manufacturing flexibility caused by conventional manual identification and re-burning of eFuses.

Abstract: The present disclosure relates to an in-situ testing device including a measuring head, a drive mechanism, and a testing chamber. The testing chamber is provided with a first optical observation hole. The measuring head is provided with a second optical observation hole. The testing chamber is provided with an opening allowing the measuring head to pass. The testing chamber is further provided with a shielding door, and the drive mechanism is connected to the shielding door to drive the shielding door to move relative to the testing chamber, to open or cover the opening, thereby opening or closing the testing chamber.

Abstract: A method for employing a differentiable ranking based graph sparsification (DRGS) network to use supervision signals from downstream tasks to guide graph sparsification is presented. The method includes, in a training phase, generating node representations by neighborhood aggregation operators, generating sparsified subgraphs by top-k neighbor sampling from a learned neighborhood ranking distribution, feeding the sparsified subgraphs to a task, generating a prediction, and collecting a prediction error to update parameters in the generating and feeding steps to minimize an error, and, in a testing phase, generating node representations by neighborhood aggregation operators related to testing data, generating sparsified subgraphs by top-k neighbor sampling from a learned neighborhood ranking distribution related to the testing data, feeding the sparsified subgraphs related to the testing data to a task, and outputting prediction results to a visualization device.

Abstract: A method for employing a supervised graph sparsification (SGS) network to use feedback from subsequent graph learning tasks to guide graph sparsification is presented. The method includes, in a training phase, generating sparsified subgraphs by edge sampling from input training graphs following a learned distribution, feeding the sparsified subgraphs to a prediction/classification component, collecting a predication/classification error, and updating parameters of the learned distribution based on a gradient derived from the predication/classification error. The method further includes, in a testing phase, generating sparsified subgraphs by edge sampling from input testing graphs following the learned distribution, feeding the sparsified subgraphs to the prediction/classification component, and outputting prediction/classification results to a visualization device.