Abstract: The present invention discloses an intelligent soft measurement method for wind speed in front of a wind turbine. The method includes: first using laser radar data as a data sample, judging delay orders between input and output by using an AIC or BIC criterion, defining a dynamic difference regression vector according to the delay orders, dividing hyperplanes according to a clustering result by using a machine learning algorithm, and performing dynamic differential input/output nonlinear mapping modeling in a global scope and sub-scopes by using an artificial intelligence dynamic regression algorithm, respectively. Empirical mode decomposition and power spectral density analysis are performed on the wind speed in front of a laser radar measuring machine and the wind speed in front of a soft measurement machine, thereby further verifying the estimation performance of intelligent soft measurement for the wind speed in front of a wind turbine.

Abstract: The present solution is directed to control of maximum current for regenerative charging of an EV battery. A battery management system (BMS) can facilitate, responsive to a first action by an actuator, a discharge of an EV battery. The BMS can identify, responsive to a second action by the actuator, a discharge capacity of the battery corresponding to the discharge associated with the first action. The BMS can determine, responsive to the second action, a temperature measurement and a state of charge measurement of the battery and determine, based on the temperature measurement, the state of charge measurement and the discharge capacity, a derate factor that can be used to modify a current level supplied to the battery during charging of the battery from energy generated responsive to the second action. The BMS can cause the battery to be charged according to the modified current level and the generated energy.

Abstract: The present application relates to a display device that connects two side edges of a flexible display screen to two pivot shafts respectively. When a camera device is turned on, a camera hole and a lens are disposed oppositely. When the camera device is turned off, a portion of a flexible display screen defined with a camera hole is wound around one of the pivot shafts, under a non-photography state of the camera device, the camera hole hidden in a frame body, and the exposed flexible display screen presents a full screen display effect to improve user experience.

Abstract: A secondary battery, including a negative electrode plate and an electrolyte are provided. In some embodiments, the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer, a first metal oxide layer, and a second metal ion adsorption layer that are sequentially arranged on at least one surface of the negative electrode current collector; the first metal oxide is selected from at least one of manganese dioxide, molybdenum oxide, magnesium oxide, aluminum oxide, and phosphorus pentoxide; and the electrolyte contains second metal ions. In the secondary battery provided in this application, the first metal oxide layer is provided on the negative electrode plate, and the second metal ion adsorption layer is formed on a negative electrode to serve as a protective layer, thereby inhibiting decomposition of electrolytes and improving cycling performance and rate performance of battery cells.

Abstract: In conventional wireline intervention shifting service, the success of the operation is heavily dependent on the engineer’s experience and knowledge. Any wrong judgement in the process of operation could lead to non-productive time or even total failure. Once the operation is completed, the post-job processing and report preparation also require significant manual effort and are extremely time consuming, which often leads to the inadequate or incomplete report. These challenges are addressed by the advanced surface acquisition software presented in this paper. The aim of the surface software is to redefine the selective shifting workflow by leveraging the available instrumentation, streamlining and simplifying operation procedures, eliminating or reducing the typical human errors observed earlier, and greatly reducing the burden on the field engineers for post-job deliverables with automated real-time data collection, processing, and report generation.

Abstract: A method for image stitching is provided. The method may include obtaining a reference image of a first portion of a subject and a target image of a second portion of the subject, and determining at least one pair of feature points based on a preliminary registration accuracy. The first and second portions may at least partially overlap with each other. Each pair may include a reference feature point in the reference image and a target feature point in the target image that matches the reference feature point. For each pair, the method may further include determining an updated pair of feature points based on a superior registration accuracy higher than the preliminary registration accuracy and a neighboring region of the target feature point of the pair. The method may further include generating a stitched image based on the at least one updated pair.

Abstract: A battery electric device includes a battery cell, e.g., a pouch, prismatic, or cylindrical cell, connectable to an electric load, and a direct-to-air thermoelectric assembly (TEA) or another heat pump connected to a surface of the cell. A pressure control device maintains constant pressure on the cell surface when the cell is connected to the load. Connection to the load causes the TEA/heat pump to pump heat from the cell. A sensor, e.g., thermocouple(s) and/or heat flux sensor(s), generate an output voltage signal indicative of the quantity of heat. A battery system includes the device and a processor in communication with the cell, the load, and the power supply. The processor generates an electronic control signal in response to the quantity of heat.

Abstract: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.

Abstract: A flexible endoscope system is provided for use in surgical operation which includes a head part and a control handle detachably connected using first and second docking keys. The head part comprises a shaft, a flexible tip located at a distal end of the shaft, an image sensor module, and drive tendons extending in the shaft for controlling the movement of the flexible tip in multiple degrees of freedom. The control handle includes multiple motors for tensioning or relaxing the drive tendons via a capstan assembly. Control element is provided on the control handle to allow a user to trigger a complex movement of the flexible tip to form an S shape so that a bird-eye view of the surgical site can be obtained by the endoscope system. The detachable connection eliminates the need to sterilize the control handle in which the main electronic components are located.

Abstract: The present disclosure relates to a surgical robotic arm, a flexible arm, and a flexible joint. The flexible joint (1) comprises two support sections (11) and an articulated section (12) connected between the two support sections (11), the articulated section (12) including a plurality of first turns (121) with contact aided parts (122); wherein, the contact aided parts (122) are oppositely arranged on two sides of each first turn (121), and when the flexible joint (1) is in a bent state, the contact aided parts (122) of adjacent first turns (121) are in contact with each other; and wherein at each first turn (121) of the articulated section (12) are provided a plurality of tendon through-holes (5) for a driving tendon (6) to pass through. Compared with the prior art, the flexible joint of the present disclosure has the merit of less misalignment proneness and better reliability.

Abstract: A rotational speed controlling module includes an input unit, a first receiving unit, a second receiving unit, and a controlling unit. The input unit is to input a first target rotational speed value, a second target rotational speed value and a target number of turns. The first receiving unit is to receive a real-time rotational speed value from an electric screw driver with clutch. The second receiving unit is to receive a real-time number of turns. The controlling unit is to control real-time rotational speed value to decrease from the first target rotational speed value to the second target rotational speed value when the real-time number of turns reaches the target number of turns.

Abstract: Method and device in nodes for wireless communication. A first receiver receives a first information block and a first signaling, the first information block is used to determine whether the first signaling comprises a target DAI field; a first transmitter transmits a target bit block in a first physical-layer channel, of a first bit block or a second bit block, at least the second bit block is used to generate the target bit block; wherein the first signaling is used to determine resources occupied by the first physical-layer channel; a first reference value is a default or configurable non-negative integer; when the first signaling does not comprise the target DAI field, the first bit block is used to generate a third bit block, the third bit block comprises at least one bit, a number of bit(s) comprised in the third bit block is equal to the first reference value.

Abstract: A user device may detect speech and use “early exiting” when identifying a potential operational command in the detected speech. The implementation of early exiting may be based on a variable threshold, where variable sensitivity settings for the threshold may be used to control how quickly, and whether, an “early exit” or early prediction of an operational command will occur. An early exit threshold may be adjusted, for example, based on network conditions, to ensure optimal operational command determination from the audio.

Abstract: A work tool and transmission system thereof. The transmission system comprises: a first shaft (250) and a second shaft (350), a near end (351) of the second shaft having a first mating part; a shaft coupler (600), a far-side part (620) of the shaft coupler having a second mating part matched in shape to the first mating part; and a coupling mechanism capable of directly or indirectly applying a coupling force to at least one of the first shaft, the second shaft and the shaft coupler; when the far-side part of the shaft coupler is aligned with the near end of the second shaft in the circumferential direction, the coupling force forces the first mating part to engage with the second mating part, so that the shaft coupler transmits rotational movement of the first shaft to the second shaft. The work tool comprises: a transmission system; a motive power head transmission-connected to the first shaft (250); and a working head transmission-connected to the second shaft (350).

Abstract: Method and device in a node for wireless communications. A first receiver receives first information and a first signaling, the first signaling is used to indicate N resource pools, N being a positive integer greater than 1, the first information is used to determine a type of at least one of the N resource pools, the type of any of the N resource pools is one of a first type and a second type, a number of resource pool(s) of the first type among the N resource pools is a first number, the first number being a positive integer; when the first number is less than N, receives a bit block in each resource pool of the second type among the N resource pools; a first transmitter transmits a target bit, a value of the target bit is equal to a target binary value acquired after logical.

Abstract: Embodiments of the present disclosure disclose a method and device for vertical correction of a panoramic image, an electronic apparatus and a storage medium. The method includes extracting a set of straight line segments from the panoramic image, where an included angle between each straight line segment in the set of straight line segments and a current vertical direction of the panoramic image is less than a preset angle. The method further includes determining a set of target points by mapping the set of straight line segments on a unit sphere of the panoramic image. The method also includes determining an equatorial plane based on the set of target points and the center of the unit sphere and determining a vertical correction matrix based on the equatorial plane and a unit vector of the current vertical direction. The method additionally includes performing the vertical correction on the panoramic image using the vertical correction matrix.

Abstract: The present disclosure provides methods for path planning, and methods, devices, and systems for determining operation guidance information. The methods include obtaining an X-ray image of a target object, and marking a location of a lesion on the X-ray image of the target object; obtaining an ultrasonic image of the target object, and obtaining a fused image by fusing the ultrasonic image of the target object with the marked X-ray image; and obtaining a planned path by performing a path planning based on a location of the lesion in the fused image. According to the methods provided herein, the problem that a single medical image providing relatively little information and without effective reference for surgery can now be solved. The surgical instrument can be implanted based on the planned path, thereby improving the success rate of surgery and reducing surgical complications.

Abstract: A method and a device in a node for wireless communications. A first receiver receives a first information block, the first information block being used to determine a first time-frequency resource pool; and a first transmitter transmits a first signal with a first transmission power, the first signal carrying a first bit block and a second bit block; herein, time-frequency resources occupied by the first signal belong to the first time-frequency resource pool; a number of bit(s) comprised in the first bit block and a first resource size are used together to determine a first amount of adjustment, the first resource size being a number of the RE(s) comprised in the first time-frequency resource pool being used for the first bit block; the first amount of adjustment is used to determine the target amount of adjustment, the target amount of adjustment being used to determine the first transmission power.

Abstract: This application provides a method and an apparatus for adjusting a memory configuration parameter. The method includes: obtaining a plurality of pieces of resource pressure, where the plurality of pieces of resource pressure are used to indicate a plurality of requirements for memory compression; and adjusting a memory configuration parameter based on the plurality of pieces of resource pressure, where there is a preset correspondence between the memory configuration parameter and each of the plurality of pieces of resource pressure. The resource pressure is, for example, processor pressure, I/O pressure, memory reclaim pressure, or memory swap space pressure. Memory compression requirements corresponding to different types of resource pressure are different. In the memory adjustment method provided in this application, a plurality of types of information are comprehensively considered, so that system performance can be optimized, and a memory management effect can be improved.

Abstract: Provided are novel heteroaromatic compound as an Autotaxin inhibitor, a pharmaceutical composition comprising the compound, and a use thereof in a treatment of a disease with a pathological feature of Autotaxin overexpression in a mammal, wherein the compound is according to formula (I), or a pharmaceutically acceptable salt, hydrate, solvate, stereoisomer, tautomer, nitrogen oxide, metabolite, prodrug, or mixture thereof; wherein each of R1, Ar1, Ar2, Ar3, W, Y, Z, and Cy is defined in the present disclosure.