Abstract: A copper bar protection structure (10) includes an upper housing (11) and a lower housing (12) that are engaged with each other. A receiving groove (14) is provided on each of engagement surfaces (15) of the upper housing (11) and the lower housing (12). The two receiving grooves (14) are combined into a copper bar accommodating space. A phase change material layer (30) is laid on an inner wall (13) of the receiving groove (14). The copper bar (20) is wrapped by the phase change material layer (30) when the copper bar accommodating space accommodates a copper bar (20).

Abstract: Embodiments disclosed herein provide a method and system for management and resolution of a blockchain-based top-level domain. The method comprises: a master node receiving request information for operations on top-level domain resource record from a requesting node, and encapsulating master node information and authenticated request information into a pre-preparation message; each normal node verifying the pre-preparation message, and after successful verification, generating a preparation message comprising request information, a request information verification identifier, and current node information; each node verifying the preparation message, when the number of authenticated preparation message sending nodes reaches a consensus threshold, adding an operation result corresponding to the request information to a new block in a local blockchain.

Abstract: A method and an apparatus for vehicle positioning. The method includes: acquiring a distance transformation image of a road marking object in a road image based on the road image of an environment where a vehicle is located at a current time point; acquiring a vector subgraph of the road marking object from a global vector map; and determining a target positioning posture of the vehicle based on the distance transformation image and the vector subgraph.

Abstract: A vehicle localization method and device, an electronic device and a storage medium. The vehicle localization method includes: acquiring an image of a scene where a vehicle is located, the image comprising a semantic element; determining an element category corresponding to the semantic element; matching the semantic element with a map element to acquire a matching result by a matching method corresponding to the element category; and determining localization information of the vehicle according to the matching result.

Abstract: An array substrate, a light control panel and a display device are provided. The array substrate includes a plurality of gate lines respectively extending along a first direction, a plurality of data lines respectively extending along a second direction intersected with the first direction, and a plurality of light control pixel units. Each of the plurality of gate lines includes a plurality of grid parts arranged side by side along the first direction and connected in sequence, and each of the plurality of grid parts includes a grid line and an opening area surrounded by the grid line.

Abstract: A display substrate, a manufacturing method thereof, and a display device are disclosed. The display substrate includes: a base substrate, the base substrate includes a bonding region; and a connection terminal located in the bonding region of the base substrate, the connection terminal includes a first conductive layer and a second conductive layer being in contact with each other, the first conductive layer and the second conductive layer are overlapped with each other in a direction perpendicular to the base substrate.

Abstract: A display panel and a display apparatus containing the display panel are disclosed. The display panel includes a substrate, a circuit structure, and a first bonding adhesive. The substrate has a first bonding area. The circuit structure has a second bonding area that opposingly faces the first bonding area. The first bonding adhesive is arranged between, and configured to contact the first bonding area and the second bonding area. At least one of the first bonding area or the second bonding area comprises at least one first indentation. The first bonding adhesive at least partially fills one or more of the at least one first indentation.

Abstract: The present disclosure relates to a power battery pack and a vehicle. The power battery pack includes a battery tray and several battery cells disposed on the battery tray. Each of the battery cells has a cell anti-explosion valve. The battery tray includes a tray body. At least a part of the tray body is formed therein with an air passage. The tray body is provided with several inlet vents and at least one exhaust vent. At least part of the inlet vents and the cell anti-explosion valves are disposed opposite to each other and correspond one-to-one to each other.

Abstract: The present disclosure relates to a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate and a side beam, and the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The base plate is formed therein with an air passage, and the base plate is provided with several inlet vents and at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage, and the exhaust vent is configured to discharge the flame, smoke or gas inside the air passage.

Abstract: Provided are a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate, a side beam, and several partition plates, the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The partition plates are disposed on the base plate and divide the base plate into several regions for placing the battery cells. The partition plates and the side beam are each formed therein with an air passage and are in communication with each other. The partition plates are provided with several inlet vents, and the side beam is provided with at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage.

Abstract: An array substrate, a light control panel and a display device are provided. The array substrate includes a plurality of gate lines respectively extending along a first direction, a plurality of data lines respectively extending along a second direction intersected with the first direction, and a plurality of light control pixel units. Each of the plurality of gate lines includes a plurality of grid parts arranged side by side along the first direction and connected in sequence, and each of the plurality of grid parts includes a grid line and an opening area surrounded by the grid line.

Abstract: The present disclosure provides a display driver module, a display apparatus and a voltage adjustment method. The display driver module comprises a source driving unit and a power supply unit. The source driving unit is configured to generate a voltage control signal according to an acquired brightness control factor, the power supply unit is configured to adjust an operating voltage output to a cathode of a light emitting device according to the voltage control signal, the operating voltage decreases or maintains unchanged as display brightness corresponding to the brightness control factor increases, and the operating voltage output by the power supply unit in response to the brightness control factor corresponding to minimum display brightness is greater than the operating voltage output by the power supply unit in response to the brightness control factor corresponding to maximum display brightness.

Abstract: Embodiments disclosed herein provide a method and system for management and resolution of a blockchain-based top-level domain. The method comprises: a master node receiving request information for operations on top-level domain resource record from a requesting node, and encapsulating master node information and authenticated request information into a pre-preparation message; each normal node verifying the pre-preparation message, and after successful verification, generating a preparation message comprising request information, a request information verification identifier, and current node information; each node verifying the preparation message, when the number of authenticated preparation message sending nodes reaches a consensus threshold, adding an operation result corresponding to the request information to a new block in a local blockchain.

Abstract: A display substrate, a manufacturing method thereof, and a display device are disclosed. The display substrate includes: a base substrate, the base substrate includes a bonding region; and a connection terminal located in the bonding region of the base substrate, the connection terminal includes a first conductive layer and a second conductive layer being in contact with each other, the first conductive layer and the second conductive layer are overlapped with each other in a direction perpendicular to the base substrate.

Abstract: A display panel and a display apparatus containing the display panel are disclosed. The display panel includes a substrate, a circuit structure, and a first bonding adhesive. The substrate has a first bonding area. The circuit structure has a second bonding area that opposingly faces the first bonding area. The first bonding adhesive is arranged between, and configured to contact the first bonding area and the second bonding area. At least one of the first bonding area or the second bonding area comprises at least one first indentation. The first bonding adhesive at least partially fills one or more of the at least one first indentation.

Abstract: An evaporation mask and an evaporation method are disclosed. The evaporation mask includes a blocking region and a plurality of evaporation regions arranged in an array. Each of the plurality of evaporation regions is integrally formed as an opened structure; the blocking region is disposed to surround each of the evaporation regions to separate adjacent evaporation regions; and the blocking region is provided with a plurality of perforated structure.

Abstract: A hierarchical voltage control system is provided. A supercapacitor unit and a lithium battery unit are both connected to a DC bus to form a parallel-structure-type hybrid energy storage system, and are each configured with a power device and a switch to control a connection relationship between the corresponding unit and the DC bus. A detection circuit detects current and voltage values of the supercapacitor unit, the lithium battery unit, and the DC bus, detects an operating parameter of a power conversion system, and transmits the operating parameter to a processor, the power conversion system being connected in parallel to the DC bus for bidirectional power conversion of AC and DC energy sources. A microprocessor determines a system operating condition and uses a hierarchical voltage control strategy to control charging and discharging states of the supercapacitor unit and the lithium battery unit.

Abstract: Embodiments of the present disclosure provide a display substrate, a method for manufacturing the same, and a display device, and relate to the field of display technology. The contact area between a first conductive pattern and a second conductive pattern may be increased. The display substrate includes a display area and a peripheral area surrounding the display area. The peripheral area includes a first conductive pattern including at least two first hollow areas as alignment marks, an insulation layer disposed on the first conductive pattern, the insulation layer including a first insulating pattern, the first insulating pattern covering the first hollow area, and the first insulating pattern being incompletely covering space between adjacent first hollow areas, a second conductive pattern disposed on the insulating layer, the second conductive pattern penetrating through the hollow area on the first insulating pattern and electrically connected to the first conductive pattern.

Abstract: Embodiments of the present disclosure provide a display substrate, a method for manufacturing the same, and a display device, and relate to the field of display technology. The contact area between a first conductive pattern and a second conductive pattern may be increased. The display substrate includes a display area and a peripheral area surrounding the display area. The peripheral area includes a first conductive pattern including at least two first hollow areas as alignment marks, an insulation layer disposed on the first conductive pattern, the insulation layer including a first insulating pattern, the first insulating pattern covering the first hollow area, and the first insulating pattern being incompletely covering space between adjacent first hollow areas, a second conductive pattern disposed on the insulating layer, the second conductive pattern penetrating through the hollow area on the first insulating pattern and electrically connected to the first conductive pattern.

Abstract: An evaporation mask and an evaporation method are disclosed. The evaporation mask includes a blocking region and a plurality of evaporation regions arranged in an array. Each of the plurality of evaporation regions is integrally formed as an opened structure; the blocking region is disposed to surround each of the evaporation regions to separate adjacent evaporation regions; and the blocking region is provided with a plurality of perforated structure.