Abstract: A function-recovering energy-dissipating reinforced concrete shear wall comprising a reinforced concrete shear wall body, common steel bars distributed in vertical direction within the reinforced concrete shear wall body, common steel bars distributed in horizontal direction within the reinforced concrete shear wall body, high-strength reinforcing materials arranged on left and right sides of the shear wall, and four dampers arranged in an X-shaped cross mode between a front reinforcement fabric and a rear reinforcement fabric that are formed by common steel bars distributed in vertical direction and common steel bars distributed in horizontal direction; a cylindrical piston rod having a hinge hole is arranged at the end portion of each damper.

Abstract: A focusing method, a computer readable storage medium and a mobile phone are provided. The focusing method includes: acquiring an fv value corresponding to a current frame, when detecting that a rotation angular velocity value corresponding to the current frame is greater than a first threshold during a first scan configured to acquire a focusing area; compensating the fv value corresponding to the current frame to obtain a compensated fv value, when detecting that a difference between the focus value fv corresponding to the current frame and an fv value corresponding to a previous frame is greater than a second threshold; and focusing with the compensated fv value.

Abstract: A system for actively mitigating a buffeting noise in an occupant compartment of a vehicle when the vehicle is moving. The system is configured to determine an estimated effective volume of the occupant compartment, and to determine if a single window of the vehicle occupant compartment is open. Responsive to a determination that a single window of the vehicle occupant compartment is open, and using the estimated effective volume of the occupant compartment, an estimated buffeting noise frequency is determined. Responsive to the estimated buffeting noise frequency, the system determines characteristics of a sound configured to cancel a buffeting noise generated inside the occupant compartment while the vehicle is moving. The system may then control operation of a noise cancelling signal generating system to generate the sound having characteristics configured to cancel the buffeting noise inside the occupant compartment.

Abstract: A programmable metasurface and method is described having a plurality of parallel slits in an elastic substrate plate defining a plurality of unit cells, each having an actuator beam and a sensing beam with a slit therebetween. Each sensing beam has a pair of sensors for sensing flexural waves in the substrate. The actuator beam has a piezoelectric actuator that is controlled by a control circuit where the control circuit generates an actuator signal and where the control circuit compares the preceding actuator signal to the difference between the sensors and an electrical transfer function to result in the metasurface being able to perform a desired function.

Abstract: A sensor of electric nail guns, comprising a gun body; a handle; a trigger; a gun nozzle disposed in a lower end of the gun body; a striker matching the gun nozzle disposed in the gun body; a charger disposed on a rear side of gun nozzle; the charger having an assorted forcer; an assorted motor disposed in a middle of the gun body; a first cylinder matching the striker and disposed in the gun body; a first piston disposed in the first cylinder; and a second piston matching an upper end of the striker and disposed in the upper end of the gun body; wherein a front end of the charger includes a photoinduction mechanism; the sensor of electric nail guns can prevent air shot or wrong shot of electric nail guns effectively, so as to guarantee the service performance of electric nail guns.

Abstract: An acoustic emission probe positioning system, a test block for the system, and an application of the system are disclosed. The positioning system comprises a first test block and a second test block that are oppositely arranged and that define a non-closed test region. The first test block includes a first main portion and a first protruding portion that are connected to each other. The second test block includes a second main portion and a second protruding portion that are connected to each other. The first main portion and the second main portion are vertically opposite to each other, and the first protruding portion and the second protruding portion are opposite to each other left and right in a staggered manner. Multiple first probe storage holes are defined in the first main portion, and multiple second probe storage holes are defined in the first protruding portion.

Abstract: Described herein is a pooling method and device, pooling system, computer-readable storage. The pooling method comprises: acquiring pixel data of each column in a pooling window column by column, each time after the pooling window is moved; performing a pooling operation on all of the pooling data in the pooling window when the last column of pixel data in the pooling window is acquired; and outputting a pooling result of the pooling operation. The technical solution of the invention may improve the pooling efficiency and the system performance.

Abstract: The present disclosure provides a multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method. The multi-path combined high-low voltage plasma rock-breaking drill bit comprises: a drill bit body, insulators, plasma generators, drilling fluid outlets, plasma integrated pipelines, a drilling fluid pipe; wherein a plurality of plasma generators are distributed on the same drill bit body; the axis of the plasma generator and the axis of the drill bit body form a certain included angle; each of the plasma generators is independently connected to the ground through its respective plasma integrated pipeline and operates independently; and drilling fluid flows out of the drilling fluid outlets, takes away the heat generated by the operation of the plasma generators, thereby cooling the plasma generators.

Abstract: Disclosed are various embodiments that extract vehicle trajectories from aerial videos. A vehicle track comprising pixel coordinate points is obtained. The pixel coordinate points are converted to relative coordinate points. At least one vehicle trajectory is extracted based at least in part on the vehicle track and the relative coordinate points. A lane structure is generated that is based on the at least one vehicle trajectory.

Abstract: A calibratable switched-capacitor voltage reference and an associated calibration method are described. The voltage reference includes dynamic diode elements providing diode voltages, input capacitor(s) for sampling input voltages, base-emitter capacitor(s) for sampling one diode voltage with respect to a ground, dynamically trimmable capacitor(s) for sampling the one diode voltage with respect to another diode voltage, and an operational amplifier coupled to the capacitors for providing reference voltage(s) based on the sampled input and diode voltages and on trims of the trimmable capacitor(s). The voltage reference can be configured as a first integrator of a modulator stage of a delta-sigma analog-to-digital converter.

Abstract: The disclosure discloses a focusing method, device, and computer apparatus for realizing a clear human face. The focusing method includes: acquiring first position information of a human face in a current frame of an image to be captured by performing face recognition on the image, after a camera finishing focusing; acquiring second position information of the human face in a next frame, before shooting the image; determining whether a position of the human face changes, based on the first and second position information; resetting an ROI of the human face when it changes; and refocusing on the human face based on the ROI. The disclosure can track the human face in real-time, and trigger the camera to refocus after the human face deviates from a previous focusing position, thereby to make the human face in the captured photograph clear.

Abstract: Provided is a recombinant oncolytic virus composition, comprising a first recombinant oncolytic virus and a second recombinant oncolytic virus. Both the first and second recombinant oncolytic viruses comprise a herpes simplex virus vector and an exogenous gene, the exogenous gene is encoded from one of cytokine, a monoclonal antibody having a tumor preventative and/or treatment function, tumor antigens, prodrug invertase, tumor suppressor polypeptide, antisense RNA or small RNA, wherein the exogenous genes in the first and the second recombinant oncolytic viruses are different. Also provided is an application of the recombinant oncolytic virus composition in preparation of a medicament drug for treating tumors.

Abstract: A calibratable switched-capacitor voltage reference and an associated calibration method are described. The voltage reference includes dynamic diode elements providing diode voltages, input capacitor(s) for sampling input voltages, base-emitter capacitor(s) for sampling one diode voltage with respect to a ground, dynamically trimmable capacitor(s) for sampling the one diode voltage with respect to another diode voltage, and an operational amplifier coupled to the capacitors for providing reference voltage(s) based on the sampled input and diode voltages and on trims of the trimmable capacitor(s). The voltage reference can be configured as a first integrator of a modulator stage of a delta-sigma analog-to-digital converter.

Abstract: A method for focus control and a mobile terminal are disclosed. The method includes recognizing whether a face region appears in a preview window in a photographing preview mode; acquiring a preset travel path of the lens that matches with the face region in response to an area of the face region being less than a first preset value, wherein a start point of the preset travel path is a first position, an end point of the preset travel path is a second position close to the far focus position, and the first position is not coincident with the second position; and focusing on the face region following the movement between the first position and the second position along the optical axis according to the preset travel path.

Abstract: A camera assembly, a method for tracking a target portion based on the camera assembly, and an electronic device are provided. The camera assembly includes: a first camera; a first motor for driving the first camera to move; a second camera, comprising a plurality of pixel blocks each being formed of a plurality of photosensitive pixels and configured to obtain a first photodiode pixel by capturing a target portion of an object to be photographed through a first part of the plurality of photosensitive pixels and obtain a second photodiode pixel by capturing the target portion through a second part of the plurality of photosensitive pixels when the target portion is detected; a controller, configured to obtain a global photodiode pixel, calculate a phase difference and control the first motor to drive the first camera to move to an in-focus position according to the phase difference.

Abstract: A test method includes transmitting, by a transmit device, N signal sequences using a transmit antenna array, obtaining, from a test device, a phase offset that is of each signal sequence in the signal sequences and that is generated after the signal sequence passes through a channel, adjusting an initial test signal based on the phase offset that is of each signal sequence and that is generated after the signal sequence passes through the channel, to obtain a target test signal in-phase superposed at the test device, where the target test signal includes a plurality of signal sequences obtained by separately performing phase adjustment on the initial test signal based on the phase offset that is of each signal sequence and that is generated after the signal sequence passes through a respective channel, and transmitting the target test signal using the transmit antenna array.

Abstract: Embodiments of the present invention provide an input data conversion device, comprising: a scheduling unit, to generate a control command according to the size/dimension of the input data and the size/stride of a filter, to control actions of a data moving unit and a row data expansion unit; the data moving unit, to actively read an input data from a system storage space according to the control command of the scheduling unit; a row data caching unit, to store the input data read in; and the row data expansion unit, to read one row of the input data from the row data caching unit each time, and then to expand the row of data into one row data in different filter windows according to the sizes of the filter windows.

Abstract: A method for controlling a structured light projector is provided. The method includes that: a depth image and an initial visible light image of a scene are acquired; whether a face exists in the initial visible light image is determined; responsive to determining that the face exists in the initial visible light image, a distance between the face and the structured light projector is calculated based on the initial visible light image and the depth image; and light emission power of the structured light projector is adjusted based on the distance. A depth camera and an electronic device are also provided.

Abstract: A calibratable switched-capacitor voltage reference and an associated calibration method are described. The voltage reference includes dynamic diode elements providing diode voltages, input capacitor(s) for sampling input voltages, base-emitter capacitor(s) for sampling one diode voltage with respect to a ground, dynamically trimmable capacitor(s) for sampling the one diode voltage with respect to another diode voltage, and an operational amplifier coupled to the capacitors for providing reference voltage(s) based on the sampled input and diode voltages and on trims of the trimmable capacitor(s). The voltage reference can be configured as a first integrator of a modulator stage of a delta-sigma analog-to-digital converter.

Abstract: Disclosed in the present disclosure are a low energy consumption anhydrous CO2 phase change absorption agent, and a regeneration method and an application thereof, the absorption agent using a unitary diamine with a primary amine (NH2—) and a tertiary amine (—N—), and not containing any other organic solvent, water, and ionic liquid; two alkyl branches are linked to a nitrogen atom of the tertiary amine, forming a certain hydrophobicity; after absorbing the CO2, the diamine changes from a liquid phase to a solid phase, undergoing liquid-solid phase change to form white amino formate crystals.