Abstract: An inverter and a method for detecting insulation impedance of the inverter are provided. During grid-connected operation of the inverter, the method includes: controlling a power supply to output two different test signals, and recording voltages of a power grid to ground corresponding to the two test signals; and calculating the insulation impedance to ground of the inverter during the grid-connected operation of the inverter according to the two test signals and the voltages of the power grid to ground corresponding to the two test signals. According to the present disclosure, the power supply outputs different test signals to disturb the voltage of the power grid to ground, so as to detect insulation impedance of the inverter during grid-connected operation of the inverter.

Abstract: Provided is a periscope lens module, including: a prism; a bearing member including a bearing frame; a ball; a supporting member including a prism bracket, a driving bracket, and a rotating bracket in rotation-fit with the ball; an elastic member; and a driving member. The elastic member includes a first elastic bracket including a first abutting portion, and a second elastic bracket including a second abutting portion. The first and second abutting portions are spaced from each other and abut against a top of the rotating bracket from two sides of the ball, in such a manner that the rotating bracket and the ball abut against the bearing frame. The driving member is connected between the bearing member and the driving bracket for driving the supporting member to drive the prism to rotate. This leads to a simple structure while achieving image stabilization.

Abstract: Methods and systems for cooperative or coached gameplay in virtual environments are disclosed. Memory may store a content control profile regarding a set of control input associated with an action in a virtual environment of a digital content title. A request may be received from a set of one or more users associated with different source devices regarding cooperative gameplay of the digital content title. At least one virtual avatar may be generated for an interactive session of the digital content title in response to the request. A plurality of control inputs may be received from the plurality of different source devices and combined into a combination set of control inputs. Generating the combination set of control input may be based on the content control profile. Virtual actions associated with the virtual avatar may be controlled within the virtual environment in accordance with the combination set of control inputs.

Abstract: A method for providing adaptive game assistance during gameplay is described. The method includes providing access to play a game for a game session by a user via a game controller and accessing a profile model of the user during the game session. The profile model is a machine learning model used for predicting gaming skills from select game contexts in games. The method further includes detecting a context in the game during the game session where the profile model predicts that the user lacks a gaming skill to advance in the game and activating a haptic cue to the game controller, wherein the haptic cue is a vibration to a specific region of the game controller. The vibration to the specific region is suggestive of a type of input to be made using the game controller to advance in the game.

Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Cu and a transition metal element M1 other than Li and Cu. The lithium metal composite oxide is preferably represented by a composition formula LiaMnbCucA2dO2-eFe (where A2 is at least one element excluding Li, Mn, Cu, O, and F, and 0<a?1.35, 0.4?b?0.9, 0<c?0.2, 0?d?0.2, 0?e?0.66, 1.75?a+b+c+d?2 are satisfied).

Abstract: A one-step method for preparing a magnetic magnesium-iron layered double hydroxide (LDH)-biochar composite material and use thereof provided. Biomass, as a substrate, is placed in a ferric salt solution, magnesium hydroxide is added, the materials are fully stirred and aged for a certain time, the aged materials are dried to obtain a magnesium-iron LDH-biomass, and the magnetic magnesium-iron LDH-biochar composite material is obtained after pyrolysis. The method solves problems of uncontrollable reaction and low crystallinity of products in preparing LDH using a coprecipitation method, reduces the amount of drugs, omits a step of adjusting a pH with an alkaline solution, improves yield and reduces a cost. The obtained magnetic magnesium-iron LDH-biochar composite material exhibits an excellent performance in adsorbing phosphate in water and can be recovered by an external magnetic field. Thus, an important method is provided for preparing LDH and the composite thereof.

Abstract: A positive electrode active material for a secondary battery including: a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m. The lithium metal composite oxide contains an element A1 of at least one selected from the group consisting of Ca, Al, and Si, and in the lithium metal composite oxide, a total of Ca, Al, and Si contents relative to a total of the lithimn metal composite oxide is 10 to 1000 ppm by mass.

Abstract: The disclosure provides a method of operating a communication network. The method includes receiving input data related to a state of the communication network and operation of the communication network. The method then includes determining a policy for the communication network based on the input data. The policy is a set of features for forming a plurality of communication links in the communication network over a time interval. The plurality of communication links provides one or more paths through the communication network. Determining the policy is based at least in part on utility values of previous policies. The utility values of previous policies are derived using simulation and/or real-world implementation of the previous policies. The communication network is then operated to implement the policy in the time interval.

Abstract: The present invention discloses a control circuit and a control method for liquid crystal pixels, wherein the control circuit for liquid crystal pixels comprises a preset charging module, a second-order programming module and a first-order programming module which are connected in sequence. The present invention firstly charges the preset charging module, and then programs the preset charging module by the second-order programming module to make a voltage reach a maintenance voltage required by display of an image by a liquid crystal screen; and finally, the first-order programming module stores electric quantity for display of a next frame image when the liquid crystal screen displays a current image under the maintenance voltage, i.e., at the same time that the current image is displayed, the electric quantity required for display of the next frame image is prepared in advance.

Abstract: Provided is a lens assembly, including: a first base including a first bottom plate, and first and second side plates; a lens; and first and second memory alloy wires. The first memory alloy wire includes ends connected to the first side plate and the lens. The second memory alloy wire includes ends to the second side plate and the lens. Both the first and second memory alloy wires are perpendicular to an optical axis of the lens. According to the present invention, the first and second memory alloy wires are energized to deform, to drive the lens to reciprocate between the first and second side plates to achieve optical image stabilization. Therefore, there is no problem of magnetic field interference, and stability thereof is high. Such driving leads to a simple structure and convenient assembling without an additional Hall element, and has high usage reliability in a special environment.

Abstract: A positive electrode active material for a secondary battery has a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, and the crystal structure has a vacancy to which no lithium or metal atom is disposed. For the lithium metal composite oxide, for example, a composite oxide represented by a composition formula LiaMnbMcO2-dFd (where M is at least one metal element excluding Li and Mn, 0<a?1.4, 0.4?b?0.95, 0?c?0.2, 0?d?0.66, and 1.75?a+b+c<2 are satisfied) can be used.

Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Ti and a metal element M1 other than Li and Ti. The metal element M1 preferably further includes at least one selected from the group consisting of Fe, Ge, Si, and Ga.

Abstract: The present disclosure discloses an infrared radiation slurry and an infrared radiation heating element based on the infrared radiation slurry. Raw materials of the infrared radiation slurry include high infrared radiance materials, a conductive material and a substrate adhesive. The raw materials are evenly mixed, coated on a quartz glass tube, and carbonized to obtain the infrared radiation heating element. The present disclosure utilizes the compounded infrared radiation slurry to form a coating on a glass substrate with uniform components, uniform and controllable resistance, high conversion efficiency of electrothermal radiation, and strong adhesion, thereby achieving excellent performance of the obtained infrared radiation heating element.

Abstract: The techniques of the present disclosure provide a method of inhibiting tumor growth in a tissue of a mammal. The method includes administering to the mammal a therapeutically effective amount of a composition comprising an siRNA molecule that binds to an mRNA that codes for TGF?1 protein, an siRNA molecule that binds to an mRNA that codes for VEGFR2 protein, and a pharmaceutically acceptable carrier comprising a pharmaceutically acceptable polypeptide polymer. The techniques of the present disclosure also provide for additional methods for using this composition.

Abstract: A high-voltage bushing, comprising a conductive rod and an air cooling device. The conductive rod is internally provided with an air duct, and the air duct comprises an air inlet and an air outlet. The air cooling device comprises at least one fan, and the fan is configured to output airflow so as to blow the airflow into the air duct through the air inlet.

Abstract: Provided are a centrifugal battery liquid injection mechanism and a liquid injection method thereof. The centrifugal battery liquid injection mechanism comprises a liquid injection device and a driving device, the liquid injection device is provided with a piston mechanism and a liquid outlet head capable of being opened and closed, and one end of the liquid injection device close to the liquid outlet head is further provided with a liquid injection port capable of being opened and closed; and the liquid injection port is used for injecting a wetting liquid into the liquid injection device. The liquid injection device is connected with a to-be-wetted device through the liquid outlet head, so as to inject the wetting liquid into the to-be-wetted device. The driving device is connected with the to-be-wetted device for driving the to-be-wetted device to move.

Abstract: Provided is an auto focusing lens assembly, including a lens; a first base including a first side plate; a second base including a bottom plate, a first base body, and a second base body including a second side plate; and a pair of restoring structures. The first base is mounted to the second base body and slidable along the optical axis. The first side plate includes: a first plate body, and a second plate body. The restoring structure includes: an elastic member including one end connected to the first side plate and the other end connected to the first base body; a magnet assembly provided between the second side plate and the second plate body, and a guiding structure provided between the second side plate and the second plate body. The auto focusing lens assembly provided by the present invention can achieve a compact structure and a miniaturization design.

Abstract: The disclosure provides a method of operating a communication network. The method includes receiving input data related to a state of the communication network and operation of the communication network. The method then includes determining a policy for the communication network based on the input data. The policy is a set of features for forming a plurality of communication links in the communication network over a time interval. The plurality of communication links provides one or more paths through the communication network. Determining the policy is based at least in part on utility values of previous policies. The utility values of previous policies are derived using simulation and/or real-world implementation of the previous policies. The communication network is then operated to implement the policy in the time interval.

Abstract: Disclosed are a method and device for welding and converging battery cell tabs, which is used for welding and converging battery core end faces. The method comprises: laminating to form a plate set composed of a positive plate, a separator and a negative plate by laminating, the positive plate comprising a positive tab, and the negative plate comprising a negative tab; during laminating, bending the positive tab to form a positive tab bend, and bending the negative tab to form a negative tab bend; and welding the positive tab bend of each positive plate in the plate set, and/or welding the negative tab bend of each negative plate in the plate set. Based on the method and device, a reserved length of the tab is reduced, and a material loss of the tab material is greatly reduced. Station circulation is reduced and production efficiency and a product yield are improved.

Abstract: A screen capture method and apparatus as well as an electronic device. The screen capture method includes: in a case that a first display interface is displayed, receiving a first input performed on the first display interface; displaying at least two first screen capture boxes on the first display interface in response to the first input; and in a case that a second input is received, performing a screen capture operation on image content determined by a target screen capture box, and outputting a screenshot, where the target screen capture box includes the first screen capture boxes.