Abstract: Disclosed is a system and a method for information distribution. The system comprises: a server for generating a group key and its corresponding key deriving parameter, wherein the server encrypts sensitive contents by using the group key to obtain encrypted information; and terminals configured to receive the encrypted information through an open channel, extract the group key, then decrypt the encrypted information by using the group key to obtain the original content. In the group forming process, each terminal encrypts its private identifier using the public key and submits the ciphertext to the server. In information distribution process, the server transmits the ciphertext of sensitive contents and the key deriving parameter to the terminals via open channel Because private information available only to respective group members is required for calculating the group key, this mechanism ensures that the sensitive content can be transmitted securely on the open channel.

Abstract: A hybrid power system includes an engine and a motor. A motor stator of the motor is connected with a drive shaft of a motor vehicle through a transmission mechanism, so that the motor stator can also rotate relative to the chassis and other structures of the motor vehicle, thus, the hybrid power system composed of the engine and the motor can meet the application of various working conditions such as starting, idling, forwarding and reversing of the motor vehicle, and the number of parts of the hybrid system is greatly reduced, thereby simplifying the overall structure of the hybrid power system.

Abstract: A data processing method, a terminal device, and a base station are disclosed. The method includes: determining to change a type of at least one radio bearer of the terminal device from a first type to a second type; discarding a radio link control protocol RLC protocol data unit and/or an RLC service data unit buffered by a transmit side of an RLC layer entity of the at least one radio bearer; and assembling an RLC protocol data unit received by a receive side of the RLC layer entity of the at least one radio bearer into an RLC service data unit, and delivering the RLC service data unit in sequence to an upper layer entity of the RLC layer entity, where the upper layer entity is an upper layer entity of the RLC layer entity before the type of the at least one radio bearer is changed.

Abstract: In one embodiment, a set of dynamic vehicle parameters of an ADV associated with a road location are determined based on outputs of an IMU of the ADV measured when the ADV is traveling through the road location. Whether the set of dynamic vehicle parameters satisfy one of a first set of criteria and a second set of criteria is determined. In response to the dynamic vehicle parameters satisfying the first set of criteria for a first predetermined quantity of times or satisfying the second set of criteria for a second predetermined quantity of times, the speed limit associated with the road location is adjusted within a limited range spanning from a minimum speed limit to a maximum speed limit. Operations of the ADV when the ADV subsequently travels through the road location are controlled based at least in part on the adjusted speed limit.

Abstract: Provided is a solar cell and a photovoltaic module. The solar cell includes a silicon substrate, and the silicon substrate includes a front surface and a back surface arranged opposite to each other. P-type conductive regions and N-type conductive regions are alternately arranged on the back surface of the silicon substrate. Front surface field regions are located on the front surface of the silicon substrate and spaced from each other. The front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions. At least one front passivation layer is located on the front surface of the silicon substrate. At least one back passivation layer is located on surfaces of the P-type conductive regions and N-type conductive regions.

Abstract: A method for video processing includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.

Abstract: The electronic device includes a folding apparatus and a flexible display. The folding apparatus is configured to bear the flexible display. An elastic component of the folding apparatus may transfer an elastic force to the flexible display by using a housing of the folding apparatus. A force that is away from a main shaft and that is applied to the flexible display when the electronic device is in a flattened state is greater than a force that is away from the main shaft and that is applied to the flexible display when the electronic device is in a closed state.

Abstract: Features described herein generally relate to generating and modifying policies with an artificial intelligence (AI) platform based on user activities. Particularly, data comprising characteristics of activities performed by a user in real-world and virtual environments is collected, a control structure is predicted based on the data and model parameters learned from historical policies, and a new policy is generated or a pre-existing policy is modified based on the control structure.

Abstract: A wireless device receives, from a base station, at least one radio resource control (RRC) message comprising first configuration parameters for a first bandwidth part (BWP) of a first cell, of the base station, that is configured as a serving cell, second configuration parameters of resources of a second cell that is configured as resources of the first BWP of the first cell, and a first time value of a first inactivity timer for the first BWP of the first cell. The wireless device restarts the first inactivity timer for the first BWP of the first cell, in response to communicating a transport block via a configured grant resource of the second cell.

Abstract: An audio playback method, a failure detection method for a screen sound production component, and an electronic device. The audio playback method includes: receiving an audio playback instruction; where the audio playback instruction is used to instruct the electronic device to play a first audio; playing, in response to receiving the audio playback instruction, a detection audio by using the screen sound production component; obtaining a first parameter in a process of playing the detection audio; determining, based on the first parameter, whether the screen sound production component fails; where the first parameter is at least one of a real-time load current, a real-time load voltage, a real-time impedance, and a real-time admittance of the screen sound production component; and when the screen sound production component fails, switching the sound production component to the speaker, and playing the first audio by using the speaker.

Abstract: A construction method and system for asset value models in a digital twin engine includes: measuring the level of business importance based on a business model of building energy consumption assets, and constructing a first asset value model according to the business importance; establishing a correlation between the assets and productivity, and constructing a second asset value model according to productivity loss caused by the assets; and calculating the energy use efficiency of a building according to optimal decision variables, predicting the degradation index of the assets through the energy use efficiency, the first asset value model and the second asset value model, and generating a maintenance solution of the assets. The disclosed has ingenious conception and excellent effect, and realizes the accurate evaluation of the asset value by establishing the correlation between the assets and different businesses and different efficiency, generating the optimal and most accurate asset maintenance solution.

Abstract: Methods, systems, and devices for folded staircase via routing for memory are described. For instance, a memory device may include a set of word lines extending in first direction. Additionally, the memory device may include a first via, a second via, and a third via in a trench that extends through at least a portion of the set of word lines The first via, the second via, and the third via may extend in a second direction different than the first, where the second via is between the first via and the third via along the first direction, and where the second via is coupled with a word line of the set of word lines. Additionally, the first via and the third via may be electrically isolated from the word line of the set of word lines.

Abstract: The disclosure provides a composite anode electrode material and a preparation method thereof, an anode electrode material and a lithium ion battery. The composite anode electrode material includes a defect-type transition metal oxide and a lithium titanate, wherein the lithium titanate is compounded with the defect-type transition metal oxide in the manner of coating and/or doping, the defect-type transition metal oxide is a secondary particle, and a transition metal element in the defect-type transition metal oxide is selected from any one of tungsten, yttrium and tin. The probability of a side reaction between the defect-type transition metal oxide and an electrolyte is greatly reduced and a volume expansion effect of an anode electrode of a battery in the process of deintercalating lithium ions is greatly reduced, thereby the lithium ion battery including the composite anode electrode material has a higher capacity retention rate after cycling.

Abstract: Wireless communication techniques are described. An access node/device may transmit, to another access node/device, data corresponding to a wireless device. The access node/device may transmit the data along with downlink resource information indicating a radio resource. The other access node/device may use the radio resource to transmit the data to the wireless device. The access node/device may transmit one or more preemption indications to one or more other communication devices to preempt any other transmissions in the radio resource.

Abstract: A resonant converter has a primary resonant tank circuit and a secondary resonant tank circuit. An inverter circuit converts an input DC voltage received by the resonant converter at an input voltage node to a pulsating signal that is fed to the primary resonant tank circuit to generate a resonant tank current that flows through a primary winding of a transformer. The resonant tank current induces current in a secondary winding of the transformer. The induced current is rectified by a rectifier and the rectified signal is filtered to generate an output DC voltage at an output voltage node. The secondary resonant tank circuit is disposed between the secondary winding of the transformer and the output voltage node, and a tank node of the secondary resonant tank is connected to the primary resonant tank circuit through the inverter circuit.

Abstract: Technologies for integrated circuit components with liquid metal interconnects are disclosed. In the illustrative embodiment, a bed of nails socket can mate with an integrated circuit component with liquid metal interconnects. The nails pierce a foam cap layer that seals the liquid metal interconnects, electrically coupling the nails to the liquid metal interconnects. A fabric layer adjacent to the foam cap layer helps secure the foam cap layer, preventing small pieces of the foam cap layer that may be dislodged during repeated insertion into a bed of nails socket from becoming separated from the foam cap layer. The fabric layer can provide additional benefits, such as removing more of the liquid metal from the nails when the integrated circuit component is removed from the bed of nails socket.

Abstract: Methods, systems, and devices for staircase formation in a memory array are described. A first liner material may be deposited on a tread above a first contact surface and a portion of the first liner material may be doped. A second liner material may be deposited over the first liner and a portion of the second liner material may be doped. After doping the portions of the liner materials, the undoped portions of the liner materials may be removed so that the materials above a second contact surface can be at least partially removed via a first removal process. The doped portion of the first liner material may then be cut back so that a second removal process can expose the second contact surface and a third contact (while the first contact surface is protected from the removal process by the liner materials).

Abstract: A pulse ablation catheter for treating pulmonary arterial hypertension includes an ablation catheter part and an energy platform, where the ablation catheter part includes a movable outer sheath tube, an ablation catheter, a functional guide core, a pulse ablation part and an operating part; the operating part controls the pulse ablation part to slide axially on the functional guide core in a center of the ablation catheter, and controls strip-shaped arches in a middle of the pulse ablation part to arch or fold in a circumferential direction so as to perform pulse ablation through pulse electrode sheets and the energy platform. The pulse ablation catheter for treating pulmonary arterial hypertension of the application performs pulse ablation through the pulse ablation catheter with controllable frequency and ablation end shape to treat pulmonary arterial hypertension.

Abstract: Features described herein generally relate to enhancing functionality of electronic devices. Particularly, a notification is received from a wearable device that includes a position of the wearable device within an area, a determination is made that the wearable device is located within a predetermined distance from a controllable device, a graphical user interface page that includes buttons is sent to the wearable device, an indication that a button of the buttons has been activated is received from the wearable device, and a command signal that includes an instruction is sent to the controllable device. In this way, functionality of electronic devices can be extended with wearable devices.

Abstract: A start method for a photovoltaic rapid shutdown system, an application apparatus and a system. In the method, an inverter system controls the voltage change of a corresponding direct current bus in a photovoltaic rapid shutdown system; and a photovoltaic module shutdown device performs determination according to a measured output voltage of itself, and controls itself to be turned on when the change characteristic of the voltage of the direct current bus connected to itself satisfies a preset turn-on condition. Therefore, merely by means of a self-contained voltage sampling device, the photovoltaic module shutdown device can determine whether a turn-on signal is received, without additionally providing a corresponding receiving device, thereby reducing hardware cost of the photovoltaic module shutdown device while realizing communication between the photovoltaic module shutdown device and the outside.