Abstract: A visual pressure regulating catheter includes: a catheter body, and a hydraulic dilation balloon and a pressure regulating handle both of which are disposed on the catheter body, an endoscope pressure regulating cavity and a dilation liquid perfusion cavity are formed in the catheter body, the dilation liquid perfusion cavity is communicated with the hydraulic dilation balloon, and the pressure regulating handle is provided with a perfusion port which is communicated with the dilation fluid perfusion cavity and a pressure regulating port which is communicated with the endoscope pressure regulating cavity; an observation channel is opened at a position on the endoscope pressure regulating cavity axially opposite to the hydraulic dilation balloon, a camera at a front end of the endoscope sequentially passes through the pressure regulating port, the endoscope pressure regulating cavity and the observation channel and extends into the hydraulic dilation balloon.

Abstract: A single-photon avalanche diode unit is provided, which includes at least one main junction and a barrier region. A size of the main junction is smaller than a preset size; a polarity of the barrier region is the same as that of a first well region, and the first well region is a well region of the main junction away from an electrode of the single-photon avalanche diode unit in a depth direction. The barrier region is in the same layer as the first well region in the depth direction and is arranged around the first well region; and the barrier region extends outward to a hole conductive region of the single-photon avalanche diode unit, and a polarity of the hole conductive region is the same as that of the first well region.

Abstract: A method for stitching forward-looking sonar images while retaining information is provided. In this application, forward-looking sonar is used as underwater detection equipment and acquired forward-looking sonar images are stitched together. A phase correlation method is employed for estimating displacements between images to determine the position of each single forward-looking sonar image within the stitched image. A method based on local statistics is used for image blending to obtain a stitched forward-looking sonar image that retains information. The method for stitching forward-looking sonar images proposed in this application adapts to intra-frame and inter-frame artifacts caused by non-ideal sonar imaging configurations, overcoming the drawbacks of image quality degradation due to the intra-frame and inter-frame artifacts. The method enhances the amount of information contained in the stitched image, which can assist observers in conducting rapid underwater exploration.

Abstract: A balloon catheter for linear segmentation of gland tissue includes a balloon body, an elastic connector and a linear segmentation part, a middle portion of the elastic connector is fixed on a surface of the balloon body, the linear segmentation part is provided in the middle portion of the elastic connector, two ends of the elastic connector are fixedly connected with two ends of the balloon body respectively, and a position between the middle portion of the elastic connector and an end portion of the elastic connector is separated from the balloon body. Through the present disclosure, the technical problems of a poor effect and poor applicability of cutting a balloon on expansion of a hyperplastic gland are solved.

Abstract: The present disclosure relates to novel CRISPR enzymes, reaction mixtures, methods of using the same in the detection of microorganisms, such as FluA, FluB, amongst others. The disclosure particularly relates to the discovery of novel functional CRISPR enzyme complexes, particularly systems displaying trans cleavage activity.

Abstract: The present invention relates to a cationic material for tooth desensitization, a preparation method therefor, and an application thereof, for use in solving the technical problems in the prior art of long time consumption and limited treatment effect of materials for dentin hypersensitivity. The cationic material comprises a main chain skeleton polymer and a cationic group derived on the main chain skeleton polymer, and the main chain skeleton polymer is connected to the cationic group by means of a covalent bond. The present invention can be used for preparing a drug for treating the dentin hypersensitivity.

Abstract: A visual pressure regulating catheter includes: a catheter body, and a hydraulic dilation balloon and a pressure regulating handle both of which are disposed on the catheter body, an endoscope pressure regulating cavity and a dilation liquid perfusion cavity are formed in the catheter body, the dilation liquid perfusion cavity is communicated with the hydraulic dilation balloon, and the pressure regulating handle is provided with a perfusion port which is communicated with the dilation fluid perfusion cavity and a pressure regulating port which is communicated with the endoscope pressure regulating cavity; an observation channel is opened at a position on the endoscope pressure regulating cavity axially opposite to the hydraulic dilation balloon, a camera at a front end of the endoscope sequentially passes through the pressure regulating port, the endoscope pressure regulating cavity and the observation channel and extends into the hydraulic dilation balloon.

Abstract: A method for adjusting an orientation of a 4D ultrasound image includes: acquiring 4D ultrasound data about a tissue to be imaged; processing the 4D ultrasound data to generate a 4D ultrasound image, the 4D ultrasound image including a plurality of image frames; identifying at least one anatomical feature of interest and a current orientation thereof; and adjusting the 4D ultrasound image, such that the at least one anatomical feature of interest is always maintained at a target orientation in the plurality of image frames. Further provided in the present application are a system for adjusting an orientation of a 4D ultrasound image and a non-transitory computer-readable medium.

Abstract: An alarm analysis method, including determining M alarm pairs in a first alarm set, where each alarm pair of the M alarm pairs includes a first alarm and a second alarm having an association, generating, according to an association rule, a first feature set of N alarm pairs, the first alarm of each alarm pair of the N alarm pairs being an alarm pair root in the first feature set, the first feature set including a first probability that a first subsystem to which each first alarm belongs is a subsystem root and a first alarm object is an alarm object root and a second probability that a second subsystem to which each second alarm belongs is a subsystem root and a second alarm object is an alarm object root, and determining root information of the first alarm set based on the first probability and the second probability.

Abstract: A low-computation underwater acoustic wake-up method based on a multi-carrier signal is provided. A multi-carrier signal corresponding to communication nodes is constructed, absolute values of the multi-carrier signal in a window at a receiver are summed for signal arrival detection, and then frequency points of the multi-carrier signal are detected many times by using the real fast Fourier transform to realize wake-up detection. The method is suitable for accurate wake-up at any distance within a maximum communication distance of two underwater acoustic nodes, has a small amount of calculation, and is suitable for low-power single-chip microcomputers. The modem can be in a low-power sleep state for a long time.

Abstract: A method for identifying a reef-shoal reservoir in a faulted lacustrine basin based on a basement structure-paleogeomorphology-seismic facies progressive constraint, including: analyzing a basement structure of a work area; establishing a paleogeomorphology classification standard according to thickness, reflection structure and stratigraphic dip; based on well-seismic calibration and forward modeling, establishing a seismic facies classification standard for reef-shoal facies belts under different paleo-geomorphic conditions, and quantitatively predicting and describing a reservoir in the reef-shoal facies belts using seismic facies-controlled inversion; and according to analysis results of basement structure characteristic, paleogeomorphology classification and seismic facies, establishing a method for predicting a favorable reservoir.

Abstract: A method for identifying a reef-shoal reservoir in a faulted lacustrine basin based on a basement structure-paleogeomorphology-seismic facies progressive constraint, including: analyzing a basement structure of a work area; establishing a paleogeomorphology classification standard according to thickness, reflection structure and stratigraphic dip; based on well-seismic calibration and forward modeling, establishing a seismic facies classification standard for reef-shoal facies belts under different paleo-geomorphic conditions, and quantitatively predicting and describing a reservoir in the reef-shoal facies belts using seismic facies-controlled inversion; and according to analysis results of basement structure characteristic, paleogeomorphology classification and seismic facies, establishing a method for predicting a favorable reservoir.

Abstract: A low-computation underwater acoustic wake-up method based on a multi-carrier signal is provided. A multi-carrier signal corresponding to communication nodes is constructed, absolute values of the multi-carrier signal in a window at a receiver are summed for signal arrival detection, and then frequency points of the multi-carrier signal are detected many times by using the real fast Fourier transform to realize wake-up detection. The method is suitable for accurate wake-up at any distance within a maximum communication distance of two underwater acoustic nodes, has a small amount of calculation, and is suitable for low-power single-chip microcomputers. The modem can be in a low-power sleep state for a long time.

Abstract: An alarm analysis method, including determining M alarm pairs in a first alarm set, where each alarm pair of the M alarm pairs includes a first alarm and a second alarm having an association, generating, according to an association rule, a first feature set of N alarm pairs, the first alarm of each alarm pair of the N alarm pairs being an alarm pair root in the first feature set, the first feature set including a first probability that a first subsystem to which each first alarm belongs is a subsystem root and a first alarm object is an alarm object root and a second probability that a second subsystem to which each second alarm belongs is a subsystem root and a second alarm object is an alarm object root, and determining root information of the first alarm set based on the first probability and the second probability.

Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.

Abstract: For sewage sludge reduction, an apparatus includes a front-end auxiliary filter plate, a back-end auxiliary filter plate, and a plurality of filter plate modules disposed between the front-end auxiliary filter plate and the back-end auxiliary filter plate. Each filter plate module includes a middle main filter plate, a middle auxiliary filter plate, and a plurality of electromagnetic modules comprising an electromagnetic coil wound around an electromagnetic core. The middle main filter plate and the middle auxiliary filter plate are disposed at opposite sides of the electromagnetic modules. A plurality of microwave generators send microwaves through microwave acting channels to irradiate the sewage sludge. An electric current is applied to the electromagnetic coil, attracting the middle auxiliary filter plates and the main filter plates and applying pressure to the sewage sludge.

Abstract: A display method includes: determining whether there is a dynamic part in a current frame of picture, according to image data of a previous frame of picture and the current frame of picture; in a case where there is no dynamic part in the current frame of picture, in a display stage of the current frame of picture, providing a first light emitting control signal being always at an effective electric level state to each of pixel units of a display panel; in a case where there is a dynamic part in the current frame of picture, in the display stage of the current frame of picture, providing a second light emitting control signal, including a part at an effective electric level state and a part at a non-effective electric level state, to pixel units corresponding to at least a part of the dynamic part.

Abstract: A computer-implemented fraud detection method and system for periodically identifying network associations in a consumer population at a national credit reporting agency and computing associated network level variables related to credit use and potential first party fraud for the consumer population. In response to receiving a request for a target account from among the consumer population the computer-implemented system retrieves credit report for the target account and computes tradeline or account level variables related to credit use and potential fraudulent behavior. A fraud score is calculated based on a combined evaluation of the network level variables and the tradeline or account level variables.

Abstract: In some embodiments, an injection molding apparatus comprises: a first mold section comprising a first molding surface, wherein the first mold section is configured for attachment to a presser; a second mold section and disposed opposite the first mold section, a thermoelectric device disposed in one of the first and second mold sections and in thermal communication with at least one of the first and second mold surfaces; an electrical control system disposed in electrical communication with the thermoelectric device; the presser in mechanical communication with the first mold section and configured to move at least one of the first and second mold sections toward the other to define a molding space; and an injector for introducing a material to be molded into the molding space.

Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.