Abstract: This application discloses a clock synchronization method and a related apparatus in a distributed system. The distributed system includes a plurality of nodes, and the plurality of nodes include a master node and a plurality of slave nodes. The master node obtains a plurality of local clock offsets, where each of the plurality of local clock offsets indicates a clock offset between two nodes in the distributed system. The master node determines a global clock offset of a target slave node relative to the master node based on the plurality of local clock offsets, and sends the global clock offset to the target slave node. The target slave node obtains a clock reference value of a local clock, and then performs clock synchronization based on the clock reference value and the global clock offset.

Abstract: An oral irrigator (100) for cleaning a user's oral cavity and a method of using the oral irrigator (100) are disclosed. The oral irrigator (100) may have a reservoir (111) for storing a fluid and a tip (120) or nozzle that is in fluid communication with the reservoir (111) so that the fluid can be pumped from the reservoir (111) to the tip (120). The oral irrigator (100) may also include a pump (153) for pumping the fluid, a motor (152) for driving the pump (153), and a control module (154) for controlling the operation of the motor (152) in accordance with a mode selected by a user. The modes may include a continuous spray mode whereby the fluid is only pumped from the reservoir (111) to the tip (120) while a user is actuating an activation member (112). The modes may also include automatic spray modes whereby the fluid is pumped in accordance with pre-defined treatment protocols.

Abstract: A water chiller, a water output adjustment method, and an air conditioning system. The water chiller includes: at least two cooling towers used in parallel, a water pressure balance adjustment circuit, and a main control hoard, where each of the at least two cooling towers includes a water pressure pre-adjustment circuit, the main control board is configured to control the water pressure pre-adjustment circuit to realize real-time water output adjustment of the each of the at least two cooling towers, and control the water pressure balance adjustment circuit to achieve a water output balance adjustment among-multiple cooling towers.

Abstract: An oral care implement having a head with a bristle bearing surface. The oral care implement may include a central bristle tuft extending from a central portion of the bristle bearing surface. The oral care implement may include a plurality of perimetric bristle tufts extending from the bristle bearing surface and arranged to circumferentially surround the central bristle tuft. The perimetric bristle tufts may have different shapes from one another.

Abstract: The invention relates to an operation diagram-based method for automatically changing a route to turn back in case of interruption. The method obtains an alternative turn-back point according to the position of a fault point and the information of a line turn-back station, calculates a corresponding turn-back plan of the alternative turn-back point according to an operation diagram of the current day, and finally automatically changes an online train route according to the new turn-back plan, so as to realize automatic turn-back of a train after route adjustment in case of interruption. Compared with the prior art, the method has the advantage of being able to keep the compatibility with an existing operation diagram while quickly changing a route in case of partial line interruption, so as to facilitate quick recovery of planned operation after a fault is removed.

Abstract: An electric machine grounding system with low impedance includes a rotor that has a shaft assembly and that is configured to rotate about an axis. The shaft assembly has a surface. A housing supports the shaft assembly for rotation of the rotor. A holder extends from the housing. A ground assembly is held between the holder and the shaft assembly and includes a plurality of strands that extend to the surface to ground the shaft assembly to the housing.

Abstract: An electrode assembly, a battery cell, a battery, and an electrical device are provided. The electrode assembly includes a first electrode plate; the first electrode plate includes a first current collector, a first active material layer, and a second active material layer; the first active material layer and the second active material layer are disposed on two opposite surfaces of the first current collector respectively; and the first active material layer has a first tail end, the second active material layer has a second tail end, the first tail end and the second tail end are misaligned in a winding direction of the electrode assembly, such that a thin area is formed between the first tail end and the second tail end of the first electrode plate.

Abstract: An autonomous moving device wireless charging system, including an autonomous moving device and a wireless charging station, the wireless charging station includes a wireless charging transmitting end; the autonomous moving device includes: a wireless charging receiving end, the wireless charging transmitting end wirelessly transmits a charging signal to the wireless charging receiving end to transmit electric energy; a charging battery, electrically connected to the wireless charging receiving end, to receive the electric energy transmitted from the wireless charging receiving end; a wireless charging locating module, the wireless charging locating module determines whether the autonomous moving device is at a charging location; a driving module; and a control module, connected to the wireless charging locating module and driving module, when the wireless charging locating module determines that the autonomous moving device is at the charging location, controlling the driving module, to make the autonomous m

Abstract: A personal care product (e.g., an electric toothbrush) may include a treating portion (e.g., cleaning elements) configured to clean one or more teeth of a user of the personal care product. The personal care product may include a handle used for gripping the personal care product. A communication interface may be configured to receive signals from one or more digital devices. The received signals may include a user profile. The user profile may include an identity (e.g., identity of the user profile) and/or instructions for operating the personal care product. A processor may be configured to receive the user profile from the communication interface. The processor may be configured to cause the personal care product to perform operations according to the instructions of the user profile.

Abstract: A motor includes a housing with a stator mounted to the housing. A drive shaft is rotatably mounted within the housing by a pair of bearing assemblies, the pair of bearing assemblies each including an inner bearing race and an outer bearing race. A rotor is mounted to the drive shaft. The drive shaft includes a longitudinal oil supply passage therein, the drive shaft including a first radial passage communicating with the longitudinal oil supply and extending to the inner race of a first one of the pair of bearing assemblies and a second radial passage communicating with the longitudinal oil supply and extending to the inner race of a second one of the pair of bearing assemblies. The inner race of the pair of bearing assemblies each include at least one lube hole.

Abstract: A system/method for a cloud game can improve sharing to a social application that is locally running on a terminal. The system/method improves the scalability of cloud games, provides improved information processing, improves the sociality of cloud games, achieves a high degree of dissemination of cloud games, improves the degree of participation of players in cloud games, and improves the interaction rate of cloud games. The system/method includes logging, by a terminal, in to a cloud game installed in a server based on a trigger instruction of a cloud game login portal, transmitting an operation instruction to the server on which the cloud game is installed, and receiving sharing information including data to-be-shared transmitted by the server. The terminal can share the data to-be-shared to a target social application.

Abstract: An oral care implement having a head with a bristle bearing surface. The oral care implement may include a central bristle tuft extending from a central portion of the bristle bearing surface, the central bristle tuft terminating in a domed distal surface. Furthermore, the oral care implement may include a plurality of perimetric bristle tufts extending from the bristle bearing surface and arranged to circumferentially surround the central bristle tuft. Each of the perimetric bristle tufts may have an inclined distal surface that slopes downward towards the central bristle tuft. The bristle bearing surface of the head may have a total surface area (TSA), and the toothbrush may include a tooth cleaning element field having X number of tooth cleaning elements that collectively occupy a total cleaning element area (TCEA) such that 1 X × T ? C ? E ? A T ? S ? A = Z and Z is in a range of 0.04 to 0.065.

Abstract: An oral irrigator tip (120) may be configured for coupling to an oral irrigator (100) for purposes of irrigating a user's teeth, gums, and interproximal regions. The oral irrigator tip (120) may have a first end (123) having an inlet (124), a second end (125) having an outlet (126), and an internal fluid passageway (128) that extends from the inlet (124) to the outlet (126). The oral irrigator tip (120) may further have an attachment portion (130) for coupling the oral irrigator tip (120) to an oral irrigator handle (110). The outlet (126) may have a polygonal shape or the outlet (220) may be elongated or the outlet (320) may include multiple outlets (321, 322, 323) that are linearly aligned.

Abstract: An oral irrigator tip (120) for an oral irrigator (100). The oral irrigator tip (120) may be configured for coupling to an oral irrigator (100) for purposes of irrigating a users teeth, gums, and interproximal regions. The oral irrigator tip (120) contains a dispensing member (150) in its interior, and the dispensing member (150) leaches an oral care agent during use as a fluid such as water flows past the dispensing member (150) within the interior of the oral irrigator tip (120). The oral irrigator tip (120) may be a monolithic structure. The dispensing member (150) may be non-removable from the interior of the oral irrigator tip (120), such that upon depletion of the oral care agent from the dispensing member (150) the entire oral irrigator tip (120) is replaced. The dispensing member (150) may be in the shape of a torus such that the dispensing member (150) does not impede the flow of the fluid through the oral irrigator tip (120).

Abstract: A gear box having a carburized shaft and steel bearing assembly. The bearing includes an inner-race and an outer-race. The shaft includes a distal end surface extending perpendicularly from a shaft faying surface and a shaft annular beveled edge. The shaft faying surface is in intimate contact with the inner-race. The inner-race second annular face is coplanar with the distal end surface. The shaft annular beveled edge cooperates with the inner-race faying surface to define a half-V shaped groove. An annular weld joint is formed in the half-V shaped groove thereby joining the shaft to the inner-race. The outer-race includes a first width (W1) and the inner-race includes a second width (W2). W2 is wider than W1 by greater than 0 millimeters (mm) to about 10 mm.