Abstract: The present disclosure relates to the field of heat dissipation technologies, and provides a Vapor Chamber (VC) and an electronic device. The VC includes a first housing and a second housing that are disposed opposite to each other. The first housing and the second housing form a closed chamber. The first housing includes a bottom wall for making contact with a heat source. The second housing has a top wall facing the bottom wall. A first capillary structure is disposed on the bottom wall. The first capillary structure comprises a heat source region capillary structure and a non-heat source region capillary structure. The heat source region capillary structure includes a plurality of convex capillary structures and/or a plurality of first concave capillary structures.

Abstract: A wireless charging device and wireless charging method are disclosed. By movably setting a transmitting coil module within the wireless charging device and obtaining the position signal of the receiving coil to transmit to the controller, and connecting the sliding rod of the sliding resistor to the transmitting coil module, so that the transmitting coil module drives the sliding rod to slide during the moving process. The controller determines the position information of the receiving coil based on the position signal and detects the current electrical parameters of the sliding resistor. According to the current electrical parameters, it determines the current position information of the transmitting coil module and controls the transmitting coil module to move, enabling the transmitting coil module to accurately position and charge wirelessly with the receiving coil. Thereby, the wireless charging device may adapt to charging devices with receiving coils at different heights.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.

Abstract: The present inventions relate to improved and enhanced chromatographic systems for analyzing DNA, such as DNA released from AAV virions. The present inventions avoid past problems through the use of larger pore size media, different column flow rates and buffers comprising surfactants and increased concentrations of inorganic salts, and typically have column pressures of about 1450 to about 1550 psi.

Abstract: The present disclosure discloses an electric energy router and a charging station. The electric energy router includes a controller and a plurality of power conversion circuits. Each power conversion circuit converts a first alternating current from a power grid into a first direct current, and feeds the first direct current to a vehicle power supply for charging, the controller monitors current charging power feeding to the vehicle power supply, and the controller controls, in response to determining that the current charging power is greater than a power threshold and a reverse power supply signal is received, the power conversion circuit to convert a second direct current provided by the vehicle power supply into a second alternating current to be feed to the power grid. Thus electric energy can be intelligently distributed. Simultaneous vehicle charging and effective peak load regulation on the grid is achieved, with high flexibility and applicability.

Abstract: A semiconductor structure includes a substrate and a word line. The substrate includes active regions and non-active regions that are alternately disposed in the first direction and extend in the second direction. The word line across the active regions and the non-active regions. The word line includes first conductive portions corresponding to the active regions, isolation pillars corresponding to the non-active regions, an inter-gate dielectric layer disposed on the first conductive portions and the isolation pillars, and a second conductive portion disposed on the inter-gate dielectric layer and extends in the first direction. The first conductive portions and the isolation pillars are disposed alternately in the first direction. Protruding parts of the second conductive portion correspond to the non-active regions, and the isolation pillars are on opposite sides of the corresponding protruding parts in a cross-section of the non-active region along the second direction.

Abstract: The present invention relates to a mining hose connecting device and method, and belongs to the field of underground hydraulic equipment for coal mines. The mining hose connecting device comprises a joint unit, wherein the joint unit comprises a first joint and a second joint; a first fastening unit, wherein the first fastening unit is arranged symmetrically about a first plane, and the inner diameter of the first fastening unit is respectively in clearance fit with the outer diameters of the first joint and the second joint; and a second fastening unit, comprising a first fastener and a second fastener, wherein the inner diameters of the first fastener and the second fastener are respectively in clearance fit with the outer diameter of the first fastening unit.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: A method for predicting traffic flow or a travel time, includes: obtaining navigation route data; obtaining, according to the navigation route data, navigation flow of a road within a prediction time period; obtaining real-time traffic flow, a real-time travel time, past traffic flow, and a past travel time of the road; and training a neural network with the real-time travel time, the past travel time, the real-time traffic flow, the past traffic flow, and the navigation flow of the road to obtain predicted traffic flow or a predicted travel time of the road within the prediction time period.

Abstract: An electron microscope includes: an electron source, which is configured to generate an electron beam; a first beam conduit, which is configured to accelerate the electron beam; a second beam conduit, which is configured to accelerate the electron beam; a first detector, which is disposed between the first beam conduit and the second beam conduit and configured to receive secondary electrons generated by the electron beam acting on a sample to be tested; and a control electrode, which is disposed between the first detector and an optical axis of the electron beam and configured to change the direction of movement of backscattered electrons and the secondary electrons generated by the electron beam acting on said sample.

Abstract: A box underframe end structure of a railway vehicle includes an underframe boundary beam, an end beam, a front draft sill, and a coupler mounting seat, and further includes a rear end cross beam located on one side in a rear of the front draft sill, an end floor fixed between the end beam and the rear end cross beam, and a coupler cross beam fixed with the coupler mounting seat into a whole. A draft sill includes the front draft sill and a rear draft sill respectively arranged on a front side and a rear side of the coupler mounting seat. The coupler cross beam, the rear end cross beam, and the end floor are welded and fixed with the underframe boundary beam. The front draft sill, the rear draft sill, and the coupler cross beam are welded and fixed on a lower surface of the end floor.

Abstract: Provided is a speaker, including frame, vibration unit, and magnetic circuit unit driving the vibration unit and having magnetic gap, the vibration unit including diaphragm fixed to the frame, voice coil component fixed to the diaphragm and driving the diaphragm, and lower voice diaphragm component supporting the voice coil component. The voice coil component includes voice coil inserted in the magnetic gap and holder fixed to the diaphragm and the voice coil, the voice coil includes first and second voice coil portions. The first voice coil portion is arranged close to the lower voice diaphragm component and is fixed to the lower voice diaphragm component through the holder. The first voice coil portion includes two first sides and second side connecting thereto, and the second voice coil portion protrudes away from the second side. The voice coil component has greater circumference than the racetrack voice coil, enabling better acoustic performance.

Abstract: Provided are a digital transformer moisture absorber and a method for monitoring respiratory flow of a transformer. The digital transformer moisture absorber includes a flange. The flange is fixedly connected to an upper cover. The upper cover has a preformed opening and is connected to a first flow meter through the preformed opening. Two ends of the first flow meter communicate with a moisture absorber gas breathing channel. A silica gel barrel is disposed between the upper cover and a lower cover. The lower cover has a preformed opening and is connected to the moisture absorber gas breathing channel through the preformed opening. The moisture absorber gas breathing channel is connected to the second flow meter. Two ends of the second flow meter communicate with the moisture absorber gas breathing channel. A control module and a power supply module are disposed in the control unit.

Abstract: Systems, apparatus, and methods are described for robotic learning and execution of skills. A robotic apparatus can include a memory, a processor, sensors, and one or more movable components (e.g., a manipulating element and/or a transport element). The processor can be operatively coupled to the memory, the movable elements, and the sensors, and configured to obtain information of an environment, including one or more objects located within the environment. In some embodiments, the processor can be configured to learn skills through demonstration, exploration, user inputs, etc. In some embodiments, the processor can be configured to execute skills and/or arbitrate between different behaviors and/or actions. In some embodiments, the processor can be configured to execute skills and/or behaviors using cached trajectories or plans. In some embodiments, the processor can be configured to execute skills requiring navigation and manipulation behaviors.

Abstract: Systems, apparatus, and methods are described for robotic learning and execution of skills. A robotic apparatus can include a memory, a processor, sensors, and one or more movable components (e.g., a manipulating element and/or a transport element). The processor can be operatively coupled to the memory, the movable elements, and the sensors, and configured to obtain information of an environment, including one or more objects located within the environment. In some embodiments, the processor can be configured to learn skills through demonstration, exploration, user inputs, etc. In some embodiments, the processor can be configured to execute skills and/or arbitrate between different behaviors and/or actions. In some embodiments, the processor can be configured to learn an environmental constraint. In some embodiments, the processor can be configured to learn using a general model of a skill.

Abstract: A method for predicting traffic flow or a travel time, includes: obtaining navigation route data; obtaining, according to the navigation route data, navigation flow of a road within a prediction time period; obtaining real-time traffic flow, a real-time travel time, past traffic flow, and a past travel time of the road; and training a neural network with the real-time travel time, the past travel time, the real-time traffic flow, the past traffic flow, and the navigation flow of the road to obtain predicted traffic flow or a predicted travel time of the road within the prediction time period.

Abstract: The invention provides a method for preventing super large-scale floods and debris flows. First, the scale corresponding to certain standard floods in the watershed is evaluated based on field investigations and historical data. Second, the design standards of the system are chosen based on the prevention of super large-scale floods, and the design standard of critical control engineering is further determined. Finally, the design methods of check dams with different functional zones are proposed according to the design standards of critical control engineering. The invention allows part of the key control dam to fail under safe operating conditions of the entire system by increasing the cross-sectional areas and the flow discharges. The unbroken foundation of the dam can effectively control the channel entrainment and regulate the cross-sectional discharge. The design is helpful in mitigating giant floods and debris flows, thus protecting downstream infrastructures.

Abstract: A heat dissipation assembly and a heat dissipator are disclosed. The heat dissipation assembly may include: a base plate bottom; a base plate cover connected to the base plate bottom and forming a heat collection cavity for concentrating heat; a turbulation component provided in the heat collection cavity, the turbulation component comprising at least one turbulation piece; and a plurality of heat dissipation components connected to the base plate cover, wherein the heat dissipation components are provided with at least one heat dissipation pipeline, the heat dissipation pipeline is provided in communication with the heat collection cavity.