Abstract: The present disclosure provides a handheld showerhead and showerhead assembly comprising the handheld showerhead. The handheld showerhead comprises a water passing component, a first water outlet component, a second water outlet component, a switching component. The switching component of the present disclosure can be used in different shapes of the handheld showerhead; and has a small rotation stroke which makes it easier for the user to switch. The handheld showerhead can be fixed in the top spray showerhead without additional socket.

Abstract: A holder device for a shower apparatus includes a seat body, a waterway switching device, a filter element and an attaching seat. One end of the seat body forms a closed end, and a waterway switching device is disposed at another end of the seat body. An outer wall of the seat body is provided with a water inlet port, a first water outlet port and a second water outlet port. The first water outlet port is arranged on a side adjacent to the closed end, the first water outlet port is configured to be connected to an overhead shower, and the second water outlet port is configured to be connected to a handheld water outlet device. controlling water to flow out from the first water outlet port and/or the second water outlet port. The water flow is controlled by the waterway switching device to be in communication with the first water outlet port or/and the second water outlet port.

Abstract: A connecting device for a shower apparatus includes a shower column and a waterway switching device. The shower column is composed of a bending segment and a straight rod segment. A projection length of the shower column along the vertical projection plane Y is L1, L1 is between 210 mm and 310 mm, and a projection length of the shower column along the horizontal projection plane X is L2, L2 is between 290 mm and 350 mm, the length of the shower column of the present application is significantly shortened, and the logistics cost for transporting the same number of products is greatly reduced.

Abstract: A three-stage tubular T-shaped degassing device with microbubble axial flow and spiral flow fields is provided, which is applied to quick degassing of a gas-liquid two-phase flow. The three-stage tubular T-shaped degassing device adopts a quick degassing technology combining a microbubble uniform mixed rotational axial flow field and a spiral runner conical spiral flow field with layered jet collision reversing depth degassing. A microbubble uniform mixer is configured to adjust gas-liquid two-phase flow containing big bubbles into microbubble uniform mixed axial flow. A microbubble cyclone is configured to adjust the microbubble uniform mixed axial flow into multiple strands of rotational axial flows containing microbubbles. A rotational axial flow degasser implements the horizontal type microbubble uniform mixed multiple strands rotational axial flow degassing operation to remove most microbubbles to form axial flow gas and axial flow liquid.

Abstract: A spreading system for a plant protection UAV is provided, including a material inlet, a material conveying mechanism, and a material spreading mechanism. The material inlet is configured to dock with the material box. The material conveying mechanism includes a screw mechanism and a driving device connected to the screw mechanism. The material spreading mechanism is used to spread a material in the material box. The driving device may drive the screw mechanism to rotate, so as to transfer the material from the material inlet to the material spreading mechanism, thereby quantitatively feeding the material spreading mechanism and improving the spreading uniformity of the plant protection UAV. A plant protection UAV and a spreading control method are also provided.

Abstract: The invention discloses a multifunctional shower, which includes a body, a water outlet assembly, a water channel switching device and a water stop device. The inner cavity of the body is hollow and has a handle; The shower water inlet channel and the spray gun water inlet channel are separated, and there is a water passage hole connected to the outlet end of the shower water inlet channel; the water channel switching device and the water stop device are set in the body, and by adjusting the water channel switching device, The water flow selectively flows to the shower water inlet channel or the spray gun water inlet channel; by adjusting the water stop device, the shower can be switched between the water stop state and the water flow state.

Abstract: A connecting device for a shower apparatus includes a shower column and a waterway switching device. The shower column is composed of a bending segment and a straight rod segment. A projection length of the shower column along the vertical projection plane Y is L1, L1 is between 210 mm and 310 mm, and a projection length of the shower column along the horizontal projection plane X is L2, L2 is between 290 mm and 350 mm, the length of the shower column of the present application is significantly shortened, and the logistics cost for transporting the same number of products is greatly reduced.

Abstract: A method for forming a component to a target shape from an aluminium blank workpiece is disclosed, the method comprising: (a) cold forming an aluminium blank workpiece between a set of dies, thereby producing a component fully or partially formed to a target shape; (b) solution heat treating the fully or partially formed component by heating to or above a solution heat treatment (SHT) temperature and substantially maintaining that temperature until SHT has been completed, thereby producing a solution heat treated fully or partially formed component; and (c) quenching the solution heat treated fully or partially formed component whilst held between a set of dies, wherein holding between the dies may provide additional forming at the same time as quenching, to produce a component fully formed to the target shape.

Abstract: An electric connector and a movable platform are provided. The electric connector includes a housing, a circuit board, and an electric connection part. The circuit board is arranged in the housing to connect to a load of the movable platform. The electric connection part is displaceable relative to the housing, and at least one portion of the electric connection part may extend out of the housing. A sealing ring may be provided in an outer peripheral surface of the electric connection part that extends outside the housing to seal the gap between the electric connection part and the casing of the movable platform, so as to isolate the circuit board of the housing. The electric connection part may be electrically connected to the circuit board and an external battery respectively to enable the circuit board to process electrical signals output from the battery.

Abstract: A three-stage tubular T-shaped degassing device with microbubble axial flow and spiral flow fields is provided, which is applied to quick degassing of a gas-liquid two-phase flow. The three-stage tubular T-shaped degassing device adopts a quick degassing technology combining a microbubble uniform mixed rotational axial flow field and a spiral runner conical spiral flow field with layered jet collision reversing depth degassing. A microbubble uniform mixer is configured to adjust gas-liquid two-phase flow containing big bubbles into microbubble uniform mixed axial flow. A microbubble cyclone is configured to adjust the microbubble uniform mixed axial flow into multiple strands of rotational axial flows containing microbubbles. A rotational axial flow degasser implements the horizontal type microbubble uniform mixed multiple strands rotational axial flow degassing operation to remove most microbubbles to form axial flow gas and axial flow liquid.

Abstract: A power supply includes a battery and a shell configured to house the battery. The power supply also includes at least one detecting device configured to operably couple to the shell and including a movable member, a sensing assembly, and a first position limiting structure. The movable member is configured to movably couple with the first position limiting structure. The sensing assembly is configured to generate an indication signal for indicating whether the power supply has been mounted to at a mounting position of a battery compartment based on a location of the movable member. When the power supply is mounted at the mounting position, the movable member is moved to a location adjacent a first side of the first position limiting structure, and the sensing assembly generates a first indication signal for indicating that the power supply is mounted at the mounting position.

Abstract: A low-power-consumption high-speed zero-current switch includes a delay controller, a driving stage and a power transistor MN, wherein: an input of the delay controller is connected with an external clock CLK, an output of the delay controller is connected with an input of the driving stage, and an output of the driving stage is connected with a gate of the power transistor MN; the delay controller includes a gate signal generator, a sampling circuit and a current controller, and three of which form a negative feedback loop for stabilizing the turn-on voltage VON and the turn-off voltage VD to 0, so that when the power transistor MN is turned on or off, the source-drain voltage thereof is 0. The present invention no longer uses a high-power-consumption high-speed comparator, but uses a low-power-consumption delay controller to generate turn-on and turn-off signals of the power transistor.

Abstract: A method and system for true product word recognition using a computing device. The method includes: obtaining title words from titles of products; determining word vectors based on a word matrix, where the word matrix is constructed based on a number of cooccurrence of each of the title words and all the other title words; determining title vectors based on a title matrix, where the title matrix is constructed based on the number of cooccurrence of each of the title words and all the other title words, and the title words in each of the titles; calculating scores for the title words in corresponding one of the titles based on the corresponding word vector and title vector; and recognizing true product words of the corresponding one of the titles based on the scores.

Abstract: A low-power-consumption high-speed zero-current switch includes a delay controller, a driving stage and a power transistor MN, wherein: an input of the delay controller is connected with an external clock CLK, an output of the delay controller is connected with an input of the driving stage, and an output of the driving stage is connected with a gate of the power transistor MN; the delay controller includes a gate signal generator, a sampling circuit and a current controller, and three of which form a negative feedback loop for stabilizing the turn-on voltage VON and the turn-off voltage VD to 0, so that when the power transistor MN is turned on or off, the source-drain voltage thereof is 0. The present invention no longer uses a high-power-consumption high-speed comparator, but uses a low-power-consumption delay controller to generate turn-on and turn-off signals of the power transistor.

Abstract: A method and system for true product word recognition using a computing device. The method includes: obtaining title words from titles of products; determining word vectors based on a word matrix, where the word matrix is constructed based on a number of cooccurrence of each of the title words and all the other title words; determining title vectors based on a title matrix, where the title matrix is constructed based on the number of cooccurrence of each of the title words and all the other title words, and the title words in each of the titles; calculating scores for the title words in corresponding one of the titles based on the corresponding word vector and title vector; and recognizing true product words of the corresponding one of the titles based on the scores.

Abstract: In one embodiment, access a set of recency ranking data comprising one or more recency search queries and one or more recency search results, each of the recency search queries being recency-sensitive with respect to a particular time period and being associated with a query timestamp representing the time at which the recency search query is received at a search engine, each of the recency search results being generated by the search engine for one of the recency search queries and comprising one or more recency network resources. Construct a plurality of recency features from the set of recency ranking data. Train a first ranking model via machine learning using at least the recency features.