Abstract: A composition of heat-expandable microspheres and an application thereof are provided. The composition includes heat-expandable microspheres and a solvent. The particle size of the heat-expandable microspheres is 5 ?m?D?40 ?m, preferably 8 ?m?D?20 ?m. The thickness of the walls of at least 60% of the heat-expandable microspheres is ?5 ?m, preferably the thickness is ?3 ?m. The solvent at least comprises one organic solvent having a boiling point of above 220° C. A thermal expansion coating containing the composition has a stable structure, relatively high resistance to thermal shrinkage, relatively high mechanical strength and adhesion, can be applied in the fixation of high temperature resistant parts, and can maintain the bonding stability thereof when placed long-term in a high temperature environment (140-180° C.).

Abstract: The present disclosure provides a motion control method and apparatus, and a method and apparatus for generating a trajectory of a motion. The motion control method is applied to a robot, and includes: generating, according to a type of a desired motion, at least one motion phase of a motion process and a time for each motion phase; determining, according to the at least one motion phase and the time of each motion phase, a desired pose of the robot at least one node during the motion process; inputting the desired pose as a reference value into a cost function model to obtain a trajectory of the desired motion, where the trajectory includes a pose and a control parameter of the robot at each sampling point during the motion process; and controlling the robot to move according to the trajectory of the desired motion.

Abstract: A line current iM(k0) of an M side of a first direct-current transmission line is collected at a moment k0. A line current iM(k0?ts) thereof is collected at k0?ts. At a moment k0, a differential value diM(k0) of a current of the side of the first direct-current transmission line is calculated according to the line current iM(k0) and the line current iM(k0?ts). It is determined whether the differential value diM(k0) of the current meets a protection enabling criteria. If so, direct-current protection for the M side of the first direct-current transmission line is enabled. A line current iM(j) of the M side of the first direct-current transmission line is collected at a moment j. A line current iM(j?ts) thereof is collected at a moment j?ts. A differential value diM(j) of the current of the M side of the first direct-current transmission line at the moment j is calculated according to the line current iM(j) and the line current iM(j?ts).

Abstract: A method of controlling the motion of a two-legged robot includes: acquiring gait parameters of the two-legged robot; inputting the gait parameters to a preset gait planning model; determining gait trajectory parameters of the two-legged robot based on the gait parameters through the preset gait planning model, in which the gait trajectory parameters include a center-of-mass state corresponding to a double support phase and a center-of-mass state corresponding to a single support phase, and the center-of-mass state includes a center-of-mass position and a center-of-mass movement speed; and controlling the two-legged robot to move according to the gait trajectory parameters.

Abstract: The invention relates to a device (310) for holding a sheet-like element (10) during the stage of introducing it into a workstation (200, 300, 400) of a forming machine (1), such as a waste-ejection station (300), the said holding device (310) comprising a suction member (320) configured so as to partially retain each sheet (10) by its rear part during the stage when the said sheet (10) is introduced into the said workstation (200, 300, 400), characterized in that the suction member (320) has at least two motorized fans (13) with propellers (14) installed transversely at the entrance to the workstation (200, 300, 400), beneath the plane (P) along which the sheet-like elements move, the axes of rotation (A) of the propellers (14) of the fans (13) being substantially parallel to one another and perpendicular to the plane (P) along which the sheet-like elements move, the direction of rotation and the inclination of the propellers (14) being configured so as to generate a flow of air capable of applying suction t

Abstract: The disclosure provides a photodegradant for carbamazepine, a method and an apparatus for degrading carbamazepine, and relates to the technical filed of degradation of organic pollutants. The photodegradant provided by the disclosure includes a composite solution of a persulfate and a sulfite. In the disclosure, ultraviolet (UV), the persulfate (PS) and the sulfite (S(IV)) are combined to degrade carbamazepine, during which hydrogen sulfate (HSO3?) generated by the hydrolysis of sulfite in water participates in the reaction to produce a large amount of SO4?? and HO?, thus improving the degradation rate and degradation efficiency of carbamazepine. The composite advanced oxidation system, i.e., the ultraviolet/persulfate/sulfite (UV/PS/S(IV)) system, provided by the disclosure has stronger oxidizability than the ultraviolet/persulfate (UV/PS) system and the ultraviolet/sulfite (UV/S(IV)) system, and results in high degradation rate and high degradation efficiency of carbamazepine.

Abstract: A method for streaming a video. The method includes determining a total bitrate for a segment of a video to be received and streamed; predicting a viewpoint of a user for the segment; and determining bitrates for one or more tiles in the segment based on the determined total bitrate and the predicted viewpoint.

Abstract: System and method for adaptively streaming a video. The method includes obtaining a first segment of a video file with a first bitrate and video quality level, and, after obtaining the first segment of the video file, determining, using a controller with a trained reinforcement-learning-based adaptive streaming model, a second bitrate and video quality level of a second segment of the video file to be obtained. The method also includes obtaining the second segment of the video file with the second determined bitrate and video quality level. The method may be repeated for different segments of the video file so as to adaptively stream the video represented by the video file.

Abstract: This disclosure describes an in-situ surrounding rock testing device and method. The testing device includes a collection device and a control terminal. The collection device includes a pressure cell, displacement meters and a magnetic base. When mechanical properties of surrounding rock are tested, the collection device is only necessary to be installed on an outer surface of a gripper of a TBM. The outer surface of the gripper is coupled to a rear end surface of the magnetic base; a front end surface of the pressure cell and displacement meters are in contact with the surrounding rock. The pressure cell measures pressures undergone by the surrounding rock. The displacement meters measure a total compaction displacement of the surrounding rock relative to the collection device. A pressure-displacement curve of the surrounding rock can be obtained by the testing device while pressing the gripper tightly against the surrounding rock.

Abstract: Disclosed is a rapid short-circuit protection circuit of charger at output end. With the short-circuit protection circuit adopted at an output end of a battery charger, MOS switch transistors in a battery power supply circuit may not burn out when an output end VOUT of the battery charger is short-circuited, and thus a good short-circuit protection effect is rendered.

Abstract: A method for video coding with global rate-distortion optimization-based rate control (RC) is provided. By using this video coding method, an RC scheme for High dynamic range (HDR) in High Efficiency Video Coding (HEVC) is provided. Briefly, considering the characteristics of HDR image content, a rate-distortion (R-D) model based on HDR-Visual Difference Predictor (VDP)-2 for performance optimization is provided. In the optimization process, the ? is directly utilized rather than the bit rate to obtain the globally optimal solution. Finally, the model parameter estimation method is used to reduce errors. The video coding method of the present invention is verified that bit rate reduction on average can be achieved.

Abstract: Disclosed is a rapid short-circuit protection circuit of charger at output end. With the short-circuit protection circuit adopted at an output end of a battery charger, MOS switch transistors in a battery power supply circuit may not burn out when an output end VOUT of the battery charger is short-circuited, and thus a good short-circuit protection effect is rendered.

Abstract: A method based on CTU level rate-distortion optimization for rate control in video coding which can effectively improve the perceptual rate-distortion performance and coding efficiency is provided. Firstly, a perceptual rate-distortion model is established using a divisive normalization framework, which characterizes the relationship between local visual quality and coding bits. Subsequently, the established perceptual rate-distortion model is applied to overall distortion optimization which is transformed into a global optimization problem and solved with convex optimization algorithms to obtain optimal CTU level coding bit allocation.

Abstract: A method based on CTU level rate-distortion optimization for rate control in video coding which can effectively improve the perceptual rate-distortion performance and coding efficiency is provided. Firstly, a perceptual rate-distortion model is established using a divisive normalization framework, which characterizes the relationship between local visual quality and coding bits. Subsequently, the established perceptual rate-distortion model is applied to overall distortion optimization which is transformed into a global optimization problem and solved with convex optimization algorithms to obtain optimal CTU level coding bit allocation.

Abstract: The invention relates to a device (310) for holding a sheet-like element (10) during the stage of introducing it into a workstation (200, 300, 400) of a forming machine (1), such as a waste-ejection station (300), the said holding device (310) comprising a suction member (320) configured so as to partially retain each sheet (10) by its rear part during the stage when the said sheet (10) is introduced into the said workstation (200, 300, 400), characterized in that the suction member (320) has at least two motorized fans (13) with propellers (14) installed transversely at the entrance to the workstation (200, 300, 400), beneath the plane (P) along which the sheet-like elements move, the axes of rotation (A) of the propellers (14) of the fans (13) being substantially parallel to one another and perpendicular to the plane (P) along which the sheet-like elements move, the direction of rotation and the inclination of the propellers (14) being configured so as to generate a flow of air capable of applying suction t