Abstract: The present application provides an electric toothbrush and a method for controlling the same. The method includes: acquiring a current state of the electric toothbrush and a user input, the user input being acquired through an operable button on a body of the electric toothbrush; in response to the current state of the electric toothbrush being a second state and the user input meeting a first normal form, performing a first operation to bring the electric toothbrush into a first state; and in response to the current state of the electric toothbrush being the first state and meeting a first preset condition, performing the following operation: determining an operation parameter of the electric toothbrush based on feature information, wherein the feature information at least includes the user input and the operation parameter of the electric toothbrush includes a vibration frequency of the electric toothbrush.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for tracking a product item in an automated-checkout store. One of the methods includes receiving, by a computer system, data collected by multiple image sensors, the received data including data associated with a person, identifying, by the computer system based on the received data, multiple features of the person, extracting, by the computer system based on the identified features, data associated with the person from the received data, wherein the extracted data correspond to multiple time periods, and determining, by the computer system, a location of the person in each of the time periods based on the extracted data corresponding to the time period, wherein the determining includes aggregating the extracted data collected by different image sensors based at least in part on a location and a line of sight of each of the image sensors.

Abstract: This application provides a screen wakeup method and apparatus. The screen wakeup method includes: obtaining M image frames, where each image frame includes a first face image, and M is an integer greater than or equal to 1; determining, based on a preconfigured neural network, whether each first face image matches a preset face image that belongs to a user who is gazing at a screen of a device; and when each first face image matches the preset face image that belongs to the user, switching the screen from a screen-off state to a screen-on state. According to the technical solutions provided in this application, accuracy of screen wakeup of a device can be improved without significantly increasing costs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for tracking a product item in an automated-checkout store. One of the methods includes receiving, by a computer system, data collected by multiple image sensors, the received data including data associated with a person, identifying, by the computer system based on the received data, multiple features of the person, extracting, by the computer system based on the identified features, data associated with the person from the received data, wherein the extracted data correspond to multiple time periods, and determining, by the computer system, a location of the person in each of the time periods based on the extracted data corresponding to the time period, wherein the determining includes aggregating the extracted data collected by different image sensors based at least in part on a location and a line of sight of each of the image sensors.

Abstract: A bacillus velezensis and its application in plants is provided. The bacillus velezensis is Bacillus velezensis NSZ-YBGJ0001, and the deposit number is CGMCC No. 14384. The Bacillus velezensis can effectively prevent and control plant diseases, has no harm to the plants itself, and can promote plant growth to some extent. The use of Bacillus velezensis microbial agent can replace or reduce the use of chemical pesticides; it largely protects the ecological environment and the quality and safety of agricultural products.

Abstract: A nominal 50% duty cycle input CLKIN clock signal is processed by an adaptive circuit that outputs complementary CLK and CLKB clock signals whose duty cycle is continuously and automatically maintained at substantially 50%. The circuit includes a duty cycle adjustor circuit comprising inverter stages whose VTH is adjusted by a control voltage VC to vary duty cycle of the CLKIN signal passing through the stages. The inverter output signal is converted to the differential CLK, CLKB signals, which are low pass filtered to obtain DC voltages that are input to a differential operational amplifier whose output is control signal VC. Using the ensured substantially 50% duty cycle for CLK (or CLKB) enables data to be clocked or latch-transferred between IC stages substantially error free even if IC stage setup time varies, and clock frequency is increased. CLK duty cycle can be held to 50%±0.1% even if CLKIN duty cycle varies from 33% to 67%.