Abstract: Provided are a method for multimedia recommendation and an apparatus thereof. The method for multimedia recommendation includes: obtaining first user data of a user wearing a wearable device that is collected by the wearable device; obtaining second user data of the user, where the second user data includes at least one of attribute data of the user or multimedia preference data of the user; obtaining scenario data corresponding to a current multimedia usage scenario; determining a target multimedia item from a plurality of candidate multimedia items based on the first user data, the second user data and the scenario data; and recommending the target multimedia item to the user.

Abstract: Provided a method, an apparatus, a wearable device and a storage medium for audio playback, and relates to the fields of machine learning, deep learning, intelligent wearable, etc. The method includes: measured vital sign data of a user within a first time range is obtained; a vital sign prediction is performed based on the measured vital sign data within the first time range, to obtain predicted vital sign data of the user within a second time range after the first time range; one or more target audio parameters are determined based on the predicted vital sign data and user attribute information of the user; and matched target audio data is obtained based on the one or more target audio parameters.

Abstract: Provided are a method, apparatus, computer device, and storage medium for music recommendation based on a wearable device, and relates to the field of computer technologies. The method for music recommendation includes: obtaining one or more physiological parameters of a target user collected by the wearable device; inputting the one or more physiological parameters of the target user into a trained relaxation state assessment model to determine a current relaxation state of the target user; and determining at least one piece of target recommendation music based on at least one of the current relaxation state of the target user or relaxation parameters corresponding to multiple pieces of music to be recommended, wherein the at least one piece of target recommendation music is configured to be played for the target user.

Abstract: A method, an apparatus, a computer device and storage media for generating a sleeping aid audio are provided. The method for generating a sleeping aid audio includes: a plurality of sleeping aid audio spectrums are obtained; the plurality of sleeping aid audio spectrums are processed with a genetic algorithm, to obtain a sleeping aid audio spectrum chain; and the sleeping aid audio is generated according to the sleeping aid audio spectrum chain.

Abstract: A cabazitaxel weakly-alkaline derivative, preparation, and synthesis thereof, a liposome preparation containing the cabazitaxel weakly-alkaline derivative and application of the cabazitaxel weakly-alkaline derivative in a drug delivery system are provided. Cabazitaxel is connected with a weakly-alkaline intermediate through an ester bond, the ester bond can be broken under the action of esterase in vivo, and an active drug is released. A connecting group is C1-C4 alkyl, C3-C6 naphthenic base or phenyl; [N] is an N-methyl piperazinyl group, a piperidinyl group, a 4-(1-piperidinyl) piperidinyl group, a morpholinyl group, a pyrrolidine group or other tertiary amine structures. The cabazitaxel weakly-alkaline derivative can be prepared into the liposome preparation having high drug loading capacity, high encapsulation efficiency, and good stability.

Abstract: A production method of edible biodegradable tableware uses a powder mixture to manufacture an edible biodegradable product by a manufacturing process, and the powder mixture includes a dry powder and a maltose, and the maltose is prepared according to the total weight of the dry powder in a ratio of 1:10˜100, and the production method has the effects of improving product stability, simplifying production process, increasing yield and efficiency, avoiding pollutions during production, and decomposing the used product in various environments.

Abstract: This paper discloses an adjustable phase shifting device for antenna array as well as an antenna array, the device including a branched network of feed lines containing transformer portions of varying width for reducing reflection of signals passing through the network and coupling the common input port with the output ports placed along the first edge of the device via one or more junctions and including portions of feed lines placed along the second edge of the device, the dielectric members mounted on one rod adjacent to these portions of feed lines and can be moved along ones to synchronously adjust the phase relationship between the output ports, the dielectric members having one or more transformer portions for reducing reflection of signals passing through the network, wherein the dielectric member mounted adjacent to portions of feed lines placed along the second edge of the device and connected with the first junction from input port contains transformer portions at both ends and other dielectric mem

Abstract: This application discloses a type of reflecting plate and base station array for base station antennas. The main part of the reflecting plate is mono- or multi-layer reflector chamber, the inside of each layer placed with at least one phase shift cavity, guide groove and projection, the phase shift cavity for holding components of the phase shifter, while guide groove and projection for fixing them, allowing removable dielectric insulation medium of the phase shifter to move within the guide groove. The reflecting plate and the phase shift cavity are designed in integrative structure, achieving good consistency, less soldering and easy installation, costing less time and fewer raw materials, and high efficiency and low cost as well.

Abstract: This application discloses a type of reflecting plate and base station array for base station antennas. The main part of the reflecting plate is mono- or multi-layer reflector chamber, the inside of each layer placed with at least one phase shift cavity, guide groove and projection, the phase shift cavity for holding components of the phase shifter, while guide groove and projection for fixing them, allowing removable dielectric insulation medium of the phase shifter to move within the guide groove. The reflecting plate and the phase shift cavity are designed in integrative structure, achieving good consistency, less soldering and easy installation, costing less time and fewer raw materials, and high efficiency and low cost as well.

Abstract: This paper discloses an adjustable phase shifting device for antenna array as well as an antenna array, the device including a branched network of feed lines containing transformer portions of varying width for reducing reflection of signals passing through the network and coupling the common input port with the output ports placed along the first edge of the device via one or more junctions and including portions of feed lines placed along the second edge of the device, the dielectric members mounted on one rod adjacent to these portions of feed lines and can be moved along ones to synchronously adjust the phase relationship between the output ports, the dielectric members having one or more transformer portions for reducing reflection of signals passing through the network, wherein the dielectric member mounted adjacent to portions of feed lines placed along the second edge of the device and connected with the first junction from input port contains transformer portions at both ends and other dielectric mem