Abstract: The present invention discloses a tellurium-doped MXene composite material and a preparation method thereof, comprising the following steps: (1) adding MXene and a tellurium source into a dispersant to prepare a dispersion, and then stirring the dispersion; (2) heating the dispersion, reacting, and then cooling; (3) centrifuging the product obtained in the step (2), then washing and drying under vacuum; and (4) placing the dry product obtained in the step (3) into a corundum ark, and then transferring into a tubular furnace, heating under the protection of inert gas, retaining the temperature, and then cooling to obtain the tellurium-doped MXene composite material. The composite material prepared by the present invention can be used as a cathode of a potassium ion battery, which increases the interlamellar spacing, and optimizes an ion diffusion channel, so that the electrochemical performance of the potassium ion battery is improved.

Abstract: The present invention discloses a selenium-doped MXene material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 10 mg/ml to 100 mg/ml, wherein a mass ratio of MXene and an organic selenium source is 0.1 to 1:1; (2) transferring the dispersion into a reaction kettle, heating to 110° C. to 230° C., reacting for 10 h to 30 h, and then naturally cooling to a room temperature; and (3) washing the product obtained in the step (2) with a cleaning agent, centrifuging to collect a precipitate, and drying the precipitate under vacuum to obtain the selenium-doped MXene material. The composite material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: Disclosed herein are novel compounds, pharmaceutical compositions comprising such compounds and related methods of their use. The compounds described herein are useful, e.g. as liposomal delivery vehicles to facilitate the delivery of encapsulated polynucleotides to target cells and subsequent transfection of said target cells, and in certain embodiments are characterized as having one or more properties that afford such compounds advantages relative to other similarly classified lipids.

Abstract: Embodiments of the application relate to the field of traffic, more particularly to a method, apparatus and system for indicating a traffic signal. An embodiment is directed to a traffic signal indicating method effective on a pedestrian and/or vehicle. A traffic signal indicating system of an embodiment includes a traffic signal indicating apparatus, configured to acquire a traffic control state of a traffic management area; and a projection apparatus, configured to project first visual information for indicating the traffic control state to a first-segment pavement of the traffic management area. By projecting visual information for indicating a current traffic control state to a pavement of a traffic management area, a purpose of reminding a pedestrian and a vehicle is achieved. The projected visual information may transfer rich information. Further, it is unnecessary to modify existing traffic lights.

Abstract: This disclosure provides a resource configuration method. The method includes: receiving, by a terminal, first indication information sent by a network device, where the first indication information is used to indicate S first time units and T second time units, when S?0, the first indication information further indicates an index value or an identifier of format information of the first time unit; and when T?0, the first indication information further indicates first set information of the second time unit, the first set information indicates a first set, and the first set includes index values or identifiers of at least two types of format information of the second time unit; and determining, by the terminal, the format information of the first time unit based on the index value or the identifier of the format information of the first time unit, or determining the first set based on the first set information.

Abstract: This application provides a wireless communication method and an apparatus. The method includes: receiving higher layer signaling from a base station; receiving a broadcast message from the base station; and sending a random access preamble to the base station based on a random access configuration, where a time resource available to the random access preamble includes a part or all of a flexible time resource. Therefore, a random access requirement of a cell-edge terminal can be met, and a problem of PRACH coverage limitation can be resolved.

Abstract: Presenting a merged, fused three-dimensional point cloud includes acquiring multiple sets of images of a scene from different vantage points, each set of images including respective stereo matched images and a color image. For each respective set of images, a disparity map based on the plurality of stereo images is obtained, data from the color image is fused onto the disparity map so as to generate a fused disparity map, and a three-dimensional fused point cloud is created from the fused disparity map. The respective three-dimensional fused point clouds is merged together so as to obtain a merged, fused three-dimensional point cloud. The techniques can be advantageous even under the constraints of sparseness and low-depth resolution, and are suitable, in some cases, for real-time or near real-time applications in which computing time needs to be reduced.

Abstract: An apparatus, comprising an input transformer; a first differential transistor pair configured to receive a first back gate bias voltage; a second differential transistor pair configured to receive a second back gate bias voltage; a cross-coupled neutralization cap comprising PMOS or NMOS transistors and configured to receive a third back gate bias voltage; and an output transformer. A method of fixing at least one back gate bias voltage to impart a desired capacitance to the transistors of at least one of the first differential transistor pair, the second differential transistor pair, or the neutralization cap. The apparatus and method may provide a power amplifier having improved linearity and efficiency.

Abstract: This application provides a wireless communication method performed by a terminal or a chip of the terminal, and the method includes: receiving higher layer signaling from a base station, where the higher layer signaling is used to configure a first time resource and a first frequency resource that can be used for uplink transmission without scheduling; and receiving downlink control information indicating a format of a slot, where the format indicates a transmission direction of a symbol in the slot, and an uplink symbol in the slot is a time resource that can be used for the uplink transmission without scheduling. In the method, a time resource that is dynamically allocated by the base station to the terminal via the downlink control information and that can be used for uplink transmission without scheduling is received.

Abstract: Provided is an anti-islanding protection system. The system is applied to a low-voltage distributed generation resource (DGR) and includes a box, a reverse power protector, a protection module and an output controller. The reverse power protector has an end connected to a first current transformer and has another end connected to the output controller. The reverse power protector is configured to provide reverse power protection for the low-voltage DGR. The output controller has an end connected to the protection module and the reverse power protector and has another end connected to a grid-connection switch of the low-voltage DGR. The output controller is configured to control the grid-connection switch to turn off when reserve power is detected. The protection module has an end connected to a second current transformer and has another end connected to the output controller.

Abstract: Systems and methods are provided for online traffic dynamical adjustment and optimization. A such system may comprise one or more servers configured to monitor an incoming traffic volume for visiting an online platform, determine one or more unit traffic values of the monitored incoming traffic volume to the online platform, and monitor one or more subsets of the incoming traffic volume for respectively visiting one or more sub-platforms of the online platform.

Abstract: A resource determining method is provided. The method includes: determining a time domain position and a resource unit type of a first time domain resource unit based on first configuration information; determining a time domain position of a second time domain resource unit based on the time domain position of the first time domain resource unit, where the time domain position of the second time domain resource unit is at a time domain position which is different from the time domain position of the first time domain resource unit and is within a preset time period; and receiving second configuration information from a network-side device, and determining a resource unit type of the second time domain resource unit based on the second configuration information. Thus, subframe types of various subframes in D-TDD can be determined.

Abstract: When a condition for reducing a noise caused in the high-pressure pump is satisfied, a reduction control unit implements a noise reduction control to supply a smaller power to reduce a moving speed of a movable portion in a close acting direction to put a valve body into a closed state for a predetermined time after an energization start timing of a solenoid in a plunger rising period. A closing control unit causes a closing current, which is a constant current for surely putting the valve body into the closed state, to flow the closing current in the solenoid when the noise reduction control is completed in the plunger rising period. The predetermined time is shorter than an energization period in which a current flows in the solenoid.

Abstract: In one embodiment, a method generates actions for entities found on a video delivery system based on information for user behavior of a user on the video delivery system and generates probabilities for the actions for the entities based on the actions for the entities and the user behavior. A probability for an action indicates the probability the user would select that action for an entity when compared against other actions in the set of actions for the set of entities. The method then selects an action feed based on the probabilities for the set of actions. The action feed includes at least a portion of the actions for the entities. The action feed is outputted to the client for display on an interface where an action on an entity in the action feed is performed by the video delivery system when selected by the user on the interface.

Abstract: A sowing machine includes a stirring mechanism and a material detecting mechanism. The material detecting mechanism includes a driven member, a magnetic member, and a Hall effect sensor. When not blocked by material in the sowing machine, the driven member is configured to rotate under a driving force of a rotating shaft of the stirring mechanism, and drive the magnetic member to rotate; and the Hall effect sensor is configured to detect a first signal corresponding to the magnetic member indicating material absence. When blocked by the material, the driven member is configured to stop rotating under a resistance of the material, and stop driving the magnetic member to rotate; and the Hall effect sensor is configured to detect a second signal corresponding to the magnetic member indicating material presence. Whether the material exists is determined based on the first or the second signal.

Abstract: In some examples, a computer system may receive historical repair data and may extract features from the historical repair data for use as training data. The computer system may determine, from the historical repair data, a repair hierarchy including a plurality of repair levels which includes repair actions as one of the repair levels. Furthermore, the computer system may train the machine learning model, which performs multiple tasks for predicting values of individual levels of the repair hierarchy, by tuning parameters of the machine learning model using the training data.

Abstract: A system for identifying the location of the mobile device uses standard fluorescent light fixtures commonly found in indoor environments and detects minor variations in the light output of those fixtures caused by normal manufacturing variation. These variations are catalogued as identifying fingerprints together with location of the light fixtures to provide for navigation.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: A measurement reporting method and a device are disclosed. The method includes: receiving, by a first device, configuration information from a second device, where the configuration information is used by the first device to report information about an association relationship between a zero power-reference signal resource and a non zero power-reference signal resource; and reporting, by the first device, the information about the association relationship based on the configuration information. In this solution, the second device can accurately obtain resources on which the first device is interfered with, and perform targeted resource scheduling, to avoid scheduling of beams with strong mutual interference in two cells, thereby reducing interference.

Abstract: This application discloses a signal transmission method. The method may include: receiving, by a first device, reference configuration information for a signal resource sent by a second device, where the reference signal is used to measure interference between a first link and a second link, the first link is a link between the first device and a fourth device, the second link is a link between the second device and a third device, and the first device and the second device are relay nodes between the third device and the fourth device; and sending or receiving, by the first device, a reference signal on a reference signal resource indicated by the resource configuration information for the signal resource.