Abstract: A rocker arm mechanism of an engine, a system and a method for two-stroke engine brake are provided. The rocker arm mechanism includes a first rocker arm, a second rocker arm and a connection mechanism. One end of the first rocker arm and one end of the second rocker arm is rotatably connected to a shaft, the other end of the first rocker arm is close to a valve of the engine, while the other end of the second rocker arm is close to a cam. The connection mechanism includes a connecting piston and a linkage mechanism. The connecting piston is disposed in the first rocker arm or the second rocker arm, the linkage mechanism is rotatably connected to one end of the connecting piston. The rocker arm mechanism may be used for engine cylinder deactivation and engine brake.

Abstract: An anechoic chamber and a construction method thereof are provided, the anechoic chamber includes a top surface, being a polygon; trapezoid surfaces, corresponding to edges of top surface, upper edge lengths of trapezoid surface being equal to edge lengths of top surface, trapezoid surfaces being connected to edges of top surface through the upper edges, the trapezoid surfaces being sequentially connected along a circumferential direction of top surface, and being at angle to the top surface; rectangular surfaces, corresponding to the trapezoid surfaces, upper edge lengths of rectangular surface being equal to lower edge lengths of trapezoid surface, rectangular surfaces being connected to the trapezoid surfaces through the upper edges, the rectangular surfaces being sequentially connected along a circumferential direction of the lower edges of trapezoid surfaces, and being perpendicular to the top surface; and an absorbing material, disposed on the top surface, the trapezoid surfaces and the rectangular surf

Abstract: The present disclosure relates to a spike event decision-making device, method, chip, and electronic device to eliminate inherent delays of an output spike event of the neuromorphic chip when reading decisions. The spike event decision-making device includes a first counting module configured to count a number of input spike events of the spiking neural network, a second counting module configured to count some or all of the output spike events of the spiking neural network; and a decision-making module configured to generate a decision-making result according to numbers of spike events fired by neurons in an output layer of the spiking neural network when the number counted by the first counting module reaches a first predetermined value, or when the total count counted by the second counting module reaches a second predetermined value.

Abstract: Disclosed are a non-orthogonal multiple access (NOMA) multi-layer transmission method and an apparatus therefor. The method includes: a terminal determines a spread spectrum sequence group for NOMA multi-layer transmission, with the terminal being configured for NOMA multi-layer transmission, and the spread spectrum sequence group includes N spread spectrum sequences, the N spread spectrum sequences correspond to N data layers, the N spread spectrum sequences are mutually orthogonal, N is the number of data layers of NOMA multi-layer transmission, and N is an integer greater than 1; and the terminal sends data, the data comprising the N data layers using the spread spectrum sequence group for spectrum spreading.

Abstract: A method for controlling a paste squeeze device includes: identifying identity information of a user approaching the paste squeeze device; acquiring target usage information corresponding to the identity information, the target usage information including a target paste type and a target usage amount; and controlling the paste squeeze controller on the storage part storing a paste of the target paste type to squeeze out a paste of the target usage amount. The paste squeeze controller on the corresponding storage part can be controlled to squeeze out the paste of a target usage amount based on the identity information of different users, thereby providing accurate amount of paste specific to the individual user.

Abstract: A liquid extraction control method includes: acquiring a current temperature value of liquid to be extracted; determining whether the current temperature value is within a predetermined temperature value range; opening a liquid flow channel when the current temperature value is within the predetermined temperature range, and closing the liquid flow channel when the current temperature value is outside the predetermined temperature range. The temperature range of the liquid to be extracted can therefore be controlled, reducing probability of injuries caused by overly hot or cold liquid through a straw, and facilitating control of the temperature and extraction amount suitable for users, so as to achieve smart and quantitative fluid extraction.

Abstract: A massage apparatus includes a housing, a massage head, a wireless communication module, and a processor. The wireless communication module and the processor are located inside the housing. The massage head is located on an outer surface of the housing. The wireless communication module is electrically connected to the processor. The processor is electrically connected to the massage head. The wireless communication module is configured to perform wireless communication with an electronic device. The processor is configured to determine a first working state of the massage head, wherein the first working state is determined by motion data collected by the electronic device. The processor is further configured to control the massage head to vibrate according to the first working state.

Abstract: An animal repelling device includes a container, an end cap provided with through holes, a liquid level sensor and a wireless communication component. An animal repelling method includes: injecting volatile liquid for repelling animals in the container, and closing the end cap, in which the volatile liquid is vaporized to the outside; and detecting the liquid level through a liquid level sensor, and transmitting liquid level information to a wireless communication component, and controlling the vaporization of the volatile liquid via the wireless communication component. the vaporization of drugs for repelling animals can be intelligently controlled; and the remaining amount of the drugs for repelling animals can be automatically monitored to replenish the drugs in time.

Abstract: A method of removing mites includes: acquiring a target path for mite removal and switching from a hibernation state to a crawling state upon receiving a mite removing instruction; in the crawling state, crawling according to the target path and performing mite removal during the crawling process; and after crawling to an end position of the target path, switching from the crawling state to the hibernation state.

Abstract: A surfing simulation device can be wirelessly connected with virtual reality (VR) glasses. The surfing simulation device includes a surfboard, a surfboard base, and a controller disposed in the surfboard base. The controller controls the actions of the surfboard based on scene information associated with a surfing scene displayed in the VR glasses, such that the actions of the surfboard are synchronous with the surfing scene displayed in the VR glasses. The surfboard of the surfing simulation device can make simulating actions in real time by synchronizing with a surfing scene displayed in VR glasses, such that users can experience the immersive feeling.

Abstract: A feeding-bottle cover includes a feeding-bottle cover body shaped like a cake or sphere, a heating component, and a controlling component. A nipple portion is provided on an upper surface of the feeding-bottle cover body. A feeding-bottle port is provided on a lower surface of the feeding-bottle cover body. A channel is provided between the feeding-bottle port and the nipple portion. The heating component and the controlling component are disposed inside the feeding-bottle cover body and electrically connected to each other. The heating component and the controlling component are electrically coupled to each other and disposed inside the feeding-bottle cover, and the heating component can be controlled by the controlling component to heat the feeding-bottle cover body so as to simulate a body temperature.

Abstract: A wearable electronic device includes: a body and a connector. The body includes a display component. A display area of the display component is on the surface of the body and is configured to output display contents. The connector has a first accommodating space. When the body is fixed with the connector, the body is in the accommodating space. The connector can form a wearing ring. When the first accommodating space is empty, the body is separated from the connector. A first communication component is disposed in the body, and is configured for the communication between the body and external devices. A second communication component independent of the first communication component is disposed in in the connector, and is configured for the communication between the connector and external devices.

Abstract: Systems and methods are described for analyzing one or more online shopping missions to determine an estimated stage of a user within the mission and to adjust content for display to the user based on the estimated stage of the user within the mission. The estimated stage of the user within the mission may be determined using a model, such as a machine learning model, that accepts as input signals corresponding to the online shopping mission. The signals may represent user interface interactions and/or other data relating to the user and the mission.

Abstract: An air purification apparatus for a vehicle includes a main body, and a solar module covering at least a portion of the main body and providing power to the main body. The main body is assembled on a sunroof of the vehicle, and includes a first passage connected with the sunroof of the vehicle. A cover plate is slidably assembled with the main body and capable of sliding along the main body to open or close the first passage. The main body further includes a purification module, an air inlet module having an air inlet passage capable of receiving air from outside the vehicle for the purification module to purify the received air, and an air outlet module having an air outlet passage configured to discharge air from inside the vehicle to outside the vehicle.

Abstract: A cleaning device includes a main body housing, a cleaning liquid tank, a pressure sensor and a flow controller. By arranging one or more pressure sensors on a gripping portion of the main body housing and movably fitting flow limiters of the flow controller with liquid outlets of the cleaning liquid tank, a control component of the flow controller drives the flow limiters according to a pressure signal transmitted by the one or more pressure sensors, such that a flow limiting area of the flow limiters fitted with the liquid outlets is changed. As such, when gripping the cleaning device, a user can control an outflow of cleaning liquid by a pressure applied to the one or more pressure sensors by hand during gripping, such that the liquid outflow meets use requirement for each single squeeze.