Abstract: Disclosed are a method and a system for determining genome copy number variation, which relates to the technical field of bioinformatics. The method and the system have clinical feasibility, and can precisely detect a micro-deletion/micro-duplication area of 0.5 M under the situation of using data of about 50 M.

Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.

Abstract: The present disclosure provides a method and an apparatus for face recognition and a computer readable storage medium. The method includes: inputting a to-be-recognized blurry face image into a generator of a trained generative adversarial network to obtain a to-be-recognized clear face image; inputting the to-be-recognized clear face image to the feature extraction network to obtain a facial feature of the to-be-recognized clear face image; matching the facial feature of the to-be-recognized clear face image with each user facial feature in a preset facial feature database to determine the user facial feature best matching the to-be-recognized clear face image as a target user facial feature; and determining a user associated with the target user facial feature as a recognition result. Through this solution, the accuracy of the recognition of blurry faces can be improved.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes: a driving transistor; a switching transistor for transmitting a data voltage signal to a first electrode of the driving transistor; a storage capacitor having a first terminal coupled to a control electrode of the driving transistor, and a second terminal coupled to a reference voltage terminal; a threshold voltage extraction unit for coupling the control electrode of the driving transistor to a second electrode of the driving transistor through the scan signal; a light emission control unit for transmitting a second power voltage to the first electrode of the driving transistor; a light emitting device having a first electrode coupled to a second electrode of the driving transistor and a second electrode receiving a first power voltage; a compensation unit for transmitting a compensation voltage to a second electrode of the switching transistor.

Abstract: The disclosure provides a metal ion source emitting device comprising a ceramic chamber, a leading-out electrode chamber and three cathodes hermetically connected, a trigger electrode fixed on a ceramic insulating element, a cathode target material fixed on an indirect cooling channel, a limiting element fixed on a fixed element, the fixed element fixing the indirect cooling channel on a cathode cooling pipe, the cathode cooling pipe fixed on a cathode flange, a trigger binding post connected with the trigger electrode, a leading-out electrode and an accelerating electrode arranged right below a cathode in the leading-out electrode chamber, and leading-out slits formed on the accelerating electrode and the leading-out electrode. According to the emitting device, three cathodes can operate simultaneously with only one anode, increasing irradiation area of an ion source, and improving the operating efficiency and energy utilization rate, with a more compact emitting source and larger processing area.

Abstract: A post-paid transaction data processing method includes: receiving risk search information via a wireless or wired interface, the risk search information including a transaction amount and a transaction user identifier of a post-paid transaction; acquiring, according to the transaction user identifier, a payment channel corresponding to the transaction user identifier; determining a predictive affordable value of the payment channel for the transaction amount based on the payment channel and the transaction amount; and determining a default evaluation result of the post-paid transaction according to the predictive affordable value.

Abstract: A fibrocartilage suturing device is provided to solve the problem where the conventional procedure of the surgery is inconvenient. The fibrocartilage suturing device includes a tube assembly, a tubular member, and an anchor. The tube assembly extends through the tube assembly and includes an insertion section. The movement member is coupled with the tube assembly and includes a thrust rod extending through the tubular member. The anchor is located at one end of the thrust rod and includes a body and at least two wings connected to the body is able to be folded and unfolded relative to the body. The body of the anchor is connected to an end of a thread. Another end of the thread is connected to the tubular member.

Abstract: The present disclosure provides a display substrate, a manufacturing method and a display device. The display substrate includes a scan driving circuit, at least one shift register unit includes an output circuit, a first energy storage circuit, and a first leakage prevention circuit; the scan driving circuit also includes a first voltage signal line and a second voltage signal line; a first voltage signal line is located on a side of the second voltage signal line away from the display area; the output circuit is respectively coupled to the first voltage signal line and the second voltage signal line, the first energy storage circuit is respectively coupled to the output circuit and the second voltage signal line, the first leakage prevention circuit is coupled to the output circuit; the output circuit is arranged between the first voltage signal line and the second voltage signal line.

Abstract: A method for visualizing a large-scale point cloud based on normal, including: (S1) according to a spatial structure of a point cloud data, constructing a balanced octree structure of a node point cloud; (S2) according to the balanced octree structure and normal information of a point cloud, constructing an octree structure with the normal information; and constructing a normal level-of-detail (LOD) visualization node through downsampling; and (S3) determining a node scheduling strategy according to a relationship between a viewpoint, a viewing frustum and a normal of a render node; and respectively calling a reading thread and a rendering thread to simultaneously perform reading and rendering according to the node scheduling strategy.

Abstract: A method for dynamically measuring deformation of a rotating-body mold, including: (S1) subjecting an overall outer surface of the rotating-body mold to three-dimensional measurement to acquire an initial point cloud data; (S2) shooting, by a multi-camera system, the mold from different angles to obtain three-dimensional coordinates of marking points and coding points on the overall outer surface of the rotating-body mold; (S3) rotating the mold, and repeatedly photographing the marking points and the coding points on the mold surface under different angle poses; and calculating three-dimensional coordinates of the marking points and the coding points; and (S4) predicting a point cloud data of the outer surface under different angle poses based on a conversion relationship among the marking points to analyze a deformation degree of the mold during a rotation process.

Abstract: A one-step process for preparing a reticulated flexible polyurethane foam, a reticulated flexible polyurethane foam prepared by the process, and the use of the flexible polyurethane foam in sofa, mattress and the like are provided. The process is a one-step process, which does not comprise the step of the reticulation treatment, and therefore is safe, environmentally friendly and highly efficient.

Abstract: Systems, methods, and computer storage media having computer-executable instructions embodied thereon that return query completions are provided. A user of a computing device like a mobile phone may enter a prefix. In turn, the prefix and location information associated with the device are transmitted to a server device. The server device receives the prefix and location information. The prefix and the location information are matched with names and locations of entities stored in a database connected to the server device. The server device transmits query completion data to the mobile device. The query completion data includes one or more names that complete the received prefix. The names provided by the server device may be associated with entities that are within a threshold radius of the location information.

Abstract: Provided is a steel comprising the following chemical composition in percentage by mass: 0.150-0.250% of C, 0.10-0.50% of Si, 0.60-1.50% of Mn, 0.30-1.20% of Cr, 0.20-0.80% of Mo, 2.00-4.00% of Ni, 0-0.10% of Nb, 0.0010-0.0050% of B, 0-0.12% of V, 0.003-0.06% of Ti, 0.01-0.08% of Al, the balance being Fe and unavoidable impurities. Also provided is a steel bar and a manufacturing method thereof. The steel bar is made from the above steel. The manufacturing method comprises the steps of smelting and casting, heating, forging or rolling, quenching, and tempering.

Abstract: A backlight face recognition method, a terminal device using the same, and a computer readable storage medium are provided. The method includes: performing a face detection on each original face image in an original face image sample set to obtain a face frame corresponding to the original face image; capturing the corresponding original face images from the original face image sample set, and obtaining a new face image containing background pixels corresponding to the captured original face images from the original face image sample set; preprocessing all the obtained new face images to obtain a backlight sample set and a normal lighting sample set; and training a convolutional neural network using the backlight sample set and the normal lighting sample set until the convolutional neural network reaches a preset stopping condition. The trained convolutional neural network will improve the accuracy of face recognition in complex background and strong light.

Abstract: A system and a method for measuring the volume change of rock under the action of microwaves are disclosed. The test cavity is of a sealed cavity structure, and a rock specimen is placed in the test cavity. The microwave control device is arranged inside the test cavity. The strain measuring device includes circumferential strain gauge and axial strain gauge and is attached to the surface of the rock specimen. The measurement circuit is connected with a number of strain measuring devices through lead wires, and the resistance strain gauge is connected with the measurement circuit. After the microwaves emitted by the microwave control device act on the rock specimen, data acquisition is carried out on the rock specimen through the number of circumferential strain gauges and the number of axial strain gauges which are attached to the surface of the rock specimen.

Abstract: A method for detecting and recognizing surface defects of an automated fiber placement composite based on an image converted from point clouds, including: acquiring a surface point cloud of the automated fiber placement composite; fitting a plane to surface point data; calculating a distance from each point of the surface point cloud to a fitted plane; enveloping the surface point cloud by OBB, and generating a grayscale image according to the OBB and the distance; constructing a pre-trained semantic segmentation network for defect of fiber placement, and inputting the grayscale image to segment and recognize defect areas thereon; mapping a segmentation result output by the semantic segmentation network to the point cloud followed by defect evaluation and visualization.

Abstract: Systems and methods for UAV safety are provided. An authentication system may be used to confirm UAV and/or user identity and provide secured communications between users and UAVs. The UAVs may operate in accordance with a set of flight regulations. The set of flight regulations may be associated with a geo-fencing device in the vicinity of the UAV.

Abstract: A gear box of a hybrid power vehicle includes a first gear box part and a second gear box part. The first gear box part includes one input shaft and two intermediate shafts, and the input shaft is configured to be connected to an internal combustion engine, a first driving toothed gear and a second driving toothed gear are provided on the input shaft, a first driven toothed gear and a second driven toothed gear are provided on a first intermediate shaft, a third driven toothed gear and a fourth driven toothed gear are provided on a second intermediate shaft; and the second gear box part includes a third intermediate shaft provided with a driving toothed gear of a first gear of the electric motor and the first or second intermediate shaft provided with a driven toothed gear of the first gear of the electric motor.

Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.

Abstract: A compressed sensing based object imaging system and an imaging method thereof. The object imaging system comprises a light source generation unit (11), a filter unit (12), an image generation unit (13), an image acquisition unit (14), and an image reconstruction unit (15). The light source generation unit (11) generates experimental laser; the filter unit (12) filters high frequency scattered light and forms parallel light; the image generation unit (13) generates an experimental image in which an object image (16) and a specific measurement matrix (17) are superimposed; the image acquisition unit (14) performs compression sampling on the generated experimental image; and the image reconstruction unit (15) reconstructs sampling data to restore the object image (16).