Abstract: The method includes acquiring first feature data of a physical object in real time, where the physical object includes a torso, a main arm, an elbow joint, and a forearm, the first feature data is configured for representing rotation angles of multiple parts of the forearm around an axial direction, and the rotation angles of the multiple parts of the forearm around the axial direction are positively correlated with distances from the multiple parts of the forearm to the elbow joint of the physical object; controlling rotation angles of multiple parts of the forearm skin of a virtual model around an axis direction based on the first feature data acquired in real time, where the rotation angles of the multiple parts of the forearm skin around the axial direction are positively correlated with distances from the multiple parts of the forearm skin to the elbow joint of the virtual model; and generating the image frame of the live video according to the virtual model and the rotation angles of the multiple parts

Abstract: An adapter includes a socket portion and a power-taking portion. The power-taking portion is connected to a bottom of the socket portion, and the power-taking portion is configured to enter an electrified guide rail to take power. The socket portion includes a socket portion body, a fixed support, a locking member and an unlocking member. The fixed support is disposed at a bottom of the socket portion body. The locking member runs through the fixed support, and the locking member is configured to be limited within the electrified guide rail in a locked state and to be released from the electrified guide rail in an unlocked state. The unlocking member is connected to the fixed support, and the unlocking member is configured to enable the locking member to be switched between the locked state and the unlocked state.

Abstract: An electrode core assembly includes an encapsulation film, and an electrode core and a spacer that are disposed in an accommodating cavity defined by the encapsulation film. The electrode core includes an electrode core body and two electrode lead-out members that are electrically connected to the electrode core body. The length of the electrode core body extends along a first direction. Each of two opposite ends of the electrode core body in the first direction includes a V-shaped end in a cross-sectional view with a tip protruding outward from the electrode core body. The two electrode lead-out members are connected to the electrode core body at the tips of the two V-shaped ends. The spacer includes an inclined portion disposed on one of the V-shaped ends and has an electrode lead-out hole penetrating through the spacer and being configured to allow the electrode lead-out member to pass through.

Abstract: A computing system is provided, including one or more processors configured to provide a social media platform configured to serve a content feed to a user. The processor is further configured to generate user content interaction information by detecting user interactions with the content feed and provide a recommendation engine that selects content items for display in the content feed based on the generated user content interaction information. The processor is further configured to receive a refresh request to refresh the recommendation engine and refresh the recommendation engine at least in part by masking or resetting the user content interaction information upon receiving the refresh request. After the refresh, the processor is further configured to generate, via the recommendation engine, post-refresh content items based on the masked or reset user content interaction information, and transmit the post-refresh content items to the user device for display in the content feed.

Abstract: A battery thermal management system includes a battery and a pulse charging and discharging apparatus, wherein the battery includes a pole and an electrically conductive housing, which is arranged at the periphery of the pole; the pulse charging and discharging apparatus is electrically connected to the battery, and is used for performing pulse charging and discharging on the battery to generate a varying magnetic field; and the electrically conductive housing is located within the varying magnetic field, and is used for generating an induced current and heating the pole.

Abstract: An operating apparatus and an input apparatus for an ultrasound imaging system, and an ultrasound imaging system. The operating apparatus includes a plurality of operating surfaces, wherein at least one of the plurality of operating surfaces is mounted with a trackball assembly and at least one other of the plurality of operating surfaces is mounted with a touchpad assembly, and the operating apparatus can be flipped so that one of the trackball assembly and the touchpad assembly can be selected for controlling the ultrasound imaging system.

Abstract: An adapter, including a socket body, a guiding body, a movable conducting strip and a control member. The guiding body and the movable conducting strip are both disposed on one side of the socket body facing away from jacks, the control member is connected to the movable conducting strip in a transmission fashion, and is configured to drive the movable conducting strip to rotate relative to the socket body.

Abstract: A battery cell includes a housing having an inner cavity, a first side wall and a second side wall opposite to each other. The second side wall includes an explosion-proof hole. A first bottom support and a second bottom support are disposed in the inner cavity, support the electrode core, spaced apart from each other, and define a first gas channel. The second side wall support the first bottom support and the second bottom support. The explosion-proof hole communicates with the inner cavity through the first gas channel. A terminal post is disposed on a side wall of the housing other than the second side wall; An explosion-proof valve is mounted on the second side wall, and configured to cover the explosion-proof hole. An electrode core is disposed in the inner cavity, connected to the terminal post, and spaced apart from the explosion-proof hole.

Abstract: A vehicle has a battery pack. The battery pack includes batteries or a battery module. The battery module includes batteries. Each battery includes a battery casing and an explosion-proof valve. The explosion-proof valve is arranged on the battery casing. The explosion-proof valve is provided with a notch groove. The explosion-proof valve includes an opening area. In the depth direction of the notch groove, the shape of the orthographic projection of the opening area is non-circular. The outer edge of the orthographic projection of the opening area is a preset opening boundary, the area of the orthographic projection of the opening area being S1, the area of the orthographic projection of the explosion-proof valve being S, S1 and S meeting: S1/S?3, and the units of S1 and S both being mm2.

Abstract: A battery cell (e.g., in a battery pack, or in a vehicle) comprises: a housing having an inner cavity, a first side wall, and a second side wall; a terminal post; an explosion-proof valve; and an electrode core. A first recess and a plurality of second recesses are arranged on an inner wall surface of the second side wall and are concave in a direction facing away from the inner cavity. The first recess forms a main air passage in the inner cavity. The plurality of second recesses form a plurality of branch air passages, separately communicating with the main air passage, in the inner cavity. The second side wall comprises an explosion-proof hole corresponding to a position of the main air passage. The explosion-proof valve is mounted on the second side wall. The electrode core is arranged in the housing and spaced apart from the explosion-proof hole.

Abstract: A battery, a battery pack, and a vehicle. The battery comprises: a battery casing; a pole core, arranged in the battery casing; and a positive electrode lead-out piece and a negative electrode lead-out piece, the positive electrode lead-out piece comprising a positive-electrode first connecting sheet, the negative electrode lead-out piece comprising a negative-electrode first connecting sheet, and the positive-electrode first connecting sheet and the negative-electrode first connecting sheet being distributed at two opposite ends of the pole core in the length direction of the battery casing. The distance between the positive-electrode first connecting sheet and the negative-electrode first connecting sheet in the length direction of the battery casing is L1, the size of the battery in the length direction of the battery casing is L, and L1 and L meet: 0.95?L1/L?0.99.

Abstract: The method includes acquiring first feature data of a physical object in real time, where the physical object includes a torso, a main arm, an elbow joint, and a forearm, the first feature data is configured for representing rotation angles of multiple parts of the forearm around an axial direction, and the rotation angles of the multiple parts of the forearm around the axial direction are positively correlated with distances from the multiple parts of the forearm to the elbow joint of the physical object; controlling rotation angles of multiple parts of the forearm skin of a virtual model around an axis direction based on the first feature data acquired in real time, where the rotation angles of the multiple parts of the forearm skin around the axial direction are positively correlated with distances from the multiple parts of the forearm skin to the elbow joint of the virtual model; and generating the image frame of the live video according to the virtual model and the rotation angles of the multiple parts

Abstract: The present disclosure discloses a charging pile, relating to the technical field of vehicle charging. The charging pile comprises a charging pile main body, a mounting back plate, and a wiring assembly. The wiring assembly is arranged on the mounting back plate, wherein the charging pile main body cooperates with the wiring assembly to enable the power connection of the charging pile main body. Compared with the prior art, the charging pile provided in the present disclosure enables split mounting and wiring, improves mounting efficiency, reduces labor costs, and facilitates maintenance and repair, due to the use of a charging pile main body, a mounting back plate, and a wiring assembly mounted on the mounting back plate, which are provided separately.

Abstract: A method includes: obtaining impact values for characteristic conditions; selecting training data subsets respectively from training data sets according to the impact values; obtaining a candidate model and an evaluation value based on the training data subsets; supplementing the training data subsets according to the impact values; obtaining another candidate model and another evaluation value based on training data subsets thus supplemented; repeating the step of supplementing the training data subset, and the step of obtaining another candidate model and another evaluation value based on the training data subsets thus supplemented; and selecting one of the candidate models as a prediction model based on the evaluation values.

Abstract: A computing system is provided, including one or more processors configured to provide a social media platform configured to serve a content feed to a user. The processor is further configured to generate user content interaction information by detecting user interactions with the content feed and provide a recommendation engine that selects content items for display in the content feed based on the generated user content interaction information. The processor is further configured to receive a refresh request to refresh the recommendation engine and refresh the recommendation engine at least in part by masking or resetting the user content interaction information upon receiving the refresh request. After the refresh, the processor is further configured to generate, via the recommendation engine, post-refresh content items based on the masked or reset user content interaction information, and transmit the post-refresh content items to the user device for display in the content feed.

Abstract: A cylindrical battery includes a housing having an accommodating space; and a negative electrode sheet, a first separator, a positive electrode sheet, and a second separator that are wound multiple turns forming an electrode core. The housing is co-axial with the electrode core that is disposed in the accommodating space. The positive electrode sheet includes a positive electrode material layer and a positive electrode foil layer. The negative electrode sheet includes a negative electrode material layer and a negative electrode foil layer. Some of the wound turns of the positive electrode foil layer extends toward an end of the housing to form a positive electrode tab. Some of the wound turns of the negative electrode foil layer extends toward another end of the housing to form the negative electrode tab.

Abstract: A method for evaluating cold tolerance of Hevea brasiliensis includes: (1) taking different one-year-old germplasm plants of the Hevea brasiliensis with second whorls of leaves entering a stable period as materials, firstly culturing the materials at a normal temperature, then treating the materials at a low temperature, and finally respectively measuring relative electrical conductivities of the materials cultured at the normal temperature and physiological indexes of the cold tolerance of the materials treated at the low temperature, where a variety 93114 is used as a cold tolerance control and a Reyan 73397 is used as a sensitive control; and (2) according to changes of the physiological indexes of the cold tolerance in the germplasm plants of the Hevea brasiliensis, comprehensively evaluating the cold tolerance of the materials by using a fuzzy membership function method. When comprehensive indexes of the cold tolerance are larger, the cold tolerance of the materials is better.

Abstract: A method for evaluating cold tolerance of Hevea brasiliensis includes: (1) taking different one-year-old germplasm plants of the Hevea brasiliensis with second whorls of leaves entering a stable period as materials, firstly culturing the materials at a normal temperature, then treating the materials at a low temperature, and finally respectively measuring relative electrical conductivities of the materials cultured at the normal temperature and physiological indexes of the cold tolerance of the materials treated at the low temperature, where a variety 93114 is used as a cold tolerance control and a Reyan 73397 is used as a sensitive control; and (2) according to changes of the physiological indexes of the cold tolerance in the germplasm plants of the Hevea brasiliensis, comprehensively evaluating the cold tolerance of the materials by using a fuzzy membership function method. When comprehensive indexes of the cold tolerance are larger, the cold tolerance of the materials is better.