Abstract: An electric toothbrush brush head and an electric toothbrush are provided. The electric toothbrush head is configured for connecting a driving shaft of the electric toothbrush, and the electric toothbrush head includes a head portion having bristles, and a rod portion extending from the head portion. The rod portion is provided with a groove for being connected to the driving shaft, so that the driving shaft can be inserted into the groove to transmit a vibration to the rod portion. A rotation angle reducing assembly is arranged between the rod portion and the driving shaft to allow a rotation angle of the rod portion less than that of the driving shaft.

Abstract: A cooking control method includes, in response to a cooking signal, controlling a heating apparatus of a cooking device to heat a cooking pot of the cooking device, to cause the cooking device to enter a first cooking stage, obtaining a steam temperature in the cooking pot, in response to the steam temperature being greater than or equal to a first temperature threshold and less than a second temperature threshold, controlling a circulation fan of the cooking device to operate, and, in response to the steam temperature being greater than or equal to the second temperature threshold, controlling the cooking device to enter a second cooking stage. A power of the heating apparatus in the second cooking stage is less than a power of the heating apparatus in the first cooking stage.

Abstract: A zwitterionic polymer coating with surface grafting crosslinking, its preparation method and application are disclosed, which relate to surface modification of biomedical materials, pipelines and other medical equipment, such as extracorporeal blood circulation devices, artificial blood vessels, catheters, endoscopes and other medical equipment, to provide functions such as anticoagulation and anti-biological adhesion.

Abstract: An optical filter, which may include an interference filter having a first material layer and a second material layer stacked on a first side of the substrate, is disclosed. In some examples, the first material layer may include silicon oxide and have a first refractive index, and the second material layer may include a hydrogenated silicon carbide (SiC:H) material with a second refractive index. The SiC:H material layer is defined by a refractive index greater than the silicon oxide material layer in the range of approximately 1.65 to 4.80. The particular refractive index may be adjusted by regulating introduction of a gas, such as methane (CH4), during formation of the SiC:H material layer.

Abstract: A microbial inoculant containing Bacillus velezensis XY40-1, a preparation method and an application thereof are disclosed, which creatively improves the fermentation medium formula for seed liquid, bacterial solution, and other fermentation processes, greatly shortens the fermentation cycle, significantly reduces fermentation costs, enriches the content and types of microbial metabolites, and enhances the functions of series products such as Bacillus velezensis inoculant in terms of biocontrol and growth promotion. The biological pesticide suspension agent provided by the present disclosure can effectively prevent and control pepper phytophthora blight. Microbial seed coating agents can significantly improve the germination rate of seeds of pepper, eggplant, and cabbage, and have strong application prospects.

Abstract: A fuel injector in a fuel system having a first fuel supply of a first fuel and a second fuel supply of a second fuel includes a multifunctional control valve movable in the fuel injector to control admission of the first fuel to a combined-fuel outlet passage, and to control a timing and an injection pressure of a fuel charge containing the first fuel. In an embodiment the first fuel includes a compression-ignition fuel such as diesel and the second fuel includes an alcohol fuel such as methanol. Related apparatus and methodology is disclosed.

Abstract: An upper core device includes an upper core assembly provided with an installation cavity and a baffle member. The installation cavity has an opening on one side of the upper core assembly. The baffle member is provided in the installation cavity and configured to cover the opening. The upper core device further includes a heating assembly provided in the installation cavity and a ventilator connected to the upper core assembly and provided with a ventilation channel configured to pass through both sides of the ventilator, one end of the ventilation channel being configured to face a side of the baffle member away from the installation cavity.

Abstract: Disclosed is a cooking device including a pot body, a heating element and a panel. The pot body is provided with a cooking cavity and an installation cavity. The heating element is located in the installation cavity. The panel is assembled on the pot body and separates the cooking cavity and the installation cavity. In this way, the panel separates the cooking cavity and the installation cavity and the panel can separate the cooking cavity and the heating element, which helps to prevent the oil smoke in the cooking cavity from adhering to the heating element and prevent the attached oil smoke from affecting the normal operation of the heating element. In addition, the panel separating the cooking cavity and the installation cavity also helps to reduce the structure of the cooking device that needs to be cleaned and facilitate the cleaning of the cooking device.

Abstract: An electric toothbrush brush head and an electric toothbrush are provided. The brush head has a rod portion extending thereof, a driving shaft of the electric toothbrush is inserted into a groove formed at the rod portion, and the rod portion and the driving shaft have first and second limiting portions to fix the position. When an electric motor core inside the electric toothbrush is activated to drive the driving shaft to generate high-frequency motion, the bristles on the brush head can brush teeth. As the driving shaft in this scheme is in contact with the rod portion which is a part of the brush head and extending from the head portion, therefore, the vibration of the driving shaft can be directly transmitted to the head portion.

Abstract: A digital twin modeling method to assemble a robotic teleoperation environment, including: capturing images of the teleoperation environment; identifying a part being assembled; querying the assembly assembling order to obtain a list of assembled parts according to the part being assembled; generating a three-dimensional model of the current assembly from the list and calculating position pose information of the current assembly in an image acquisition device coordinate system; loading a three-dimensional model of the robot, determining a coordinate transformation relationship between a robot coordinate system and an image acquisition device coordinate system; determining position pose information of the robot in an image acquisition device coordinate system from the coordinate transformation relationship; determining a relative positional relationship between the current assembly and the robot from position pose information of the current assembly and the robot in an image acquisition device coordinate syste

Abstract: Provided are a JAK kinase inhibitor, preparation and use thereof. In particular, provided is a compound of Formula I, wherein each group is as described in the specification. The compound has an excellent JAK inhibitory activity, and therefore can be used to prepare pharmaceutical compositions for the treatment of cancer and other diseases related to JAK activity.

Abstract: A method for preparing and bonding a wafer-level chip used in micro light emitting diode (Micro-LED) includes: exposing pixel areas on a complementary metal oxide semiconductor (CMOS) driving substrate; patterning and growing metal electrodes; depositing a silicon dioxide (SiO2) insulation layer; bonding a Micro-LED chip; striping a substrate of the Micro-LED chip; preparing Micro-LED pixels; corroding splashed ITO and a metal on side walls of the Micro-LED pixels; preparing a co-negative electrode in the Micro-LED pixels. The method adopts a wafer bonding, which eliminates needs for alignment during bonding and compensates for the accuracy issue of die-to-die alignment. Before bonding, a metallization and passivation layer protection are applied to the CMOS surface to reduce chemical damage to the pixels and the CMOS. Compared to wafer-to-wafer, it reduces the bonding contact surface area, reduces stress during bonding, and improves bonding yield.

Abstract: A method for cutting a monocrystalline silicon square rod may include the steps of: loading: providing a square rod on a working platform and clamping the square rod, and lowering the square rod until it comes into contact with a diamond wire; cutting: setting cutting parameters, and cutting the square rod by forward and reverse reciprocating movement along the diamond wire, wherein during cutting process, first speed of the working platform varies synchronously with wire speed; and unloading: unloading after the cutting step is finished, wherein the square rod is gradually separated from the diamond wire.

Abstract: An air treatment device and a control method are provided. The air treatment device includes a water tank assembly, a water trough and a sterilization device. The sterilization device includes a sterilization portion, the sterilization portion is provided in the water trough, a water replenishing switch is provided between the water tank assembly and the water trough, and the water replenishing switch is configured to control connection and disconnection between the water tank assembly and the water trough. The air treatment device further includes a control portion, and the control portion is capable of controlling an opening and closing of the sterilization portion according to an on-off state of the water replenishing switch to ensure a good sterilization effect.

Abstract: An electric toothbrush brush head and an electric toothbrush are provided. The brush head has a rod portion extending thereof, a driving shaft of the electric toothbrush is inserted into a groove formed at the rod portion, and the rod portion and the driving shaft have first and second limiting portions to fix the position. When an electric motor core inside the electric toothbrush is activated to drive the driving shaft to generate high-frequency motion, the bristles on the brush head can brush teeth. As the driving shaft in this scheme is in contact with the rod portion which is a part of the brush head and extending from the head portion, therefore, the vibration of the driving shaft can be directly transmitted to the head portion.

Abstract: The disclosure provides a method for controlling an intelligent device and an intelligent device. The method comprises: receiving a voice input; determining a service instruction based on the received voice input; determining a target serviced object for which the service instruction is intended; determining a target execution element of the service instruction based on the target serviced object; and controlling the intelligent device to perform an action corresponding to the service instruction based on the target execution element. In addition, the process of determining the target serviced object for which the service instruction is intended may be performed based on an artificial intelligence model.

Abstract: A micro-reinforced concentric twist drill. Concentric drilling and micro-reinforcing technologies are applied to cutting faces of the twist drill, and upright micro-reinforced center drills are symmetrically arranged on spiral cutting surfaces on two sides of an axial central area, and extend to the rear cutting surface and form drill center hole cutters in a protruding manner; a micro-reinforced central cutting face is arranged on the inner side of each micro-reinforced center drill in a protruding manner, and the micro-reinforced central cutting face extends to the axial front and intersects with the rear cutting surface to form a micro-reinforced central drilling edge of the micro-reinforced concentric twist drill; and/or upright micro-reinforced reamers are symmetrically arranged on central areas of the spiral cutting surfaces on two sides of the axial center in an integral manner; a protruding reaming cutting face is formed on the inner side of each micro-reinforced reamer.

Abstract: Some embodiments of the present disclosure provide an anti-splash structure and a humidification apparatus. The anti-splash structure is provided between a mist outlet (111) and a water storage reservoir (101) of the humidification apparatus, and includes a mist-guiding passage (1) configured to connect the mist outlet (111) and the water storage reservoir (101); a water blocking structure is provided in the mist-guiding passage (1); and the water blocking structure is located at a position opposite to the mist outlet (111) and an opening of the water storage reservoir (101).

Abstract: A tensegrity offshore wind power generation support structure is provided, relating to the technical field of offshore wind power. The support structure includes inclined columns, prestressed cables, a rigid support, a floating foundation and anchoring systems. A stable self-balancing space supporting structure is formed by the inclined columns and the cables; the inclined columns inclines outwards, upper parts of the inclined columns are connected with the prestressed cables; the bottom ends of the inclined columns are connected with the floating foundation; the middle parts of the inclined columns are connected with the rigid support; and the floating foundation is fixed with a seabed through the anchoring systems. According to the support structure, a tower in the traditional design is not needed, and all the cables are ensured to be in a tension state through the support of the inclined columns.

Abstract: Some embodiments of the present disclosure provide a water retaining structure and a humidifier with the water retaining structure. The water retaining structure is disposed on a bottom surface of a water tank assembly. The water retaining structure and the water tank assembly are split. The water retaining structure includes a mist collecting portion and a water retaining portion. The mist collecting portion is formed into a mist collecting space. The mist collecting space communicates with a mist outlet tube in the water tank assembly. The water retaining portion is configured to collect water flowing down from the mist outlet tube. The water retaining structure and the water tank assembly are split so that the bottom surface of the water tank assembly is configured as a flat surface, or a height of a structure disposed on the bottom surface is reduced.