Abstract: A display panel has a display region and a peripheral region. The display panel includes a substrate, a first metal layer disposed on the substrate, a planarization layer disposed on a side of the first metal layer away from the substrate, and a retaining wall structure located in the peripheral region and surrounding the display region. The first metal layer includes a signal line pattern located in the peripheral region. The planarization layer includes an opening in the peripheral region. At least a portion of the retaining wall structure is located in the opening. The signal line pattern is provided with at least one through hole, an orthogonal projection of the at least one through hole on the substrate is located within an orthogonal projection of the opening on the substrate, and is at least located on a side of an orthogonal projection of the retaining wall structure on the substrate.

Abstract: An apparatus, method and computer program is described including: a driver for driving a membrane of a gas-retaining chamber to induce vibrations in the membrane in a first mode of operation, wherein said membrane is configured to surround at least part of a device; and an activator for activating a rapid expander in a second mode of operation, wherein the expander comprises an expandable foam that is configured to inflate said chamber in response to an activation signal.

Abstract: A display panel, including an active area and a peripheral area, which is located outside of the active area, wherein the active area comprises a base substrate, and a display structure layer and a touch structure layer sequentially arranged on the base substrate; the peripheral area includes an isolation dam, a first ground trace and a second ground trace arranged on the base substrate; and the first ground trace is located at a side of the isolation dam close to the active area, and the second ground trace is located at a side of the isolation dam away from the active area.

Abstract: The electric control box includes a box body, a mounting plate, a radiator, an electronic component and a cooling fan; the box body is provided with a mounting chamber, the mounting plate is arranged in the mounting chamber and the mounting chamber forms a first chamber and a second chamber which are located at two sides of the mounting plate, the mounting plate is provided with a first ventilation opening and a second ventilation opening which are spaced apart, the first ventilation opening and the second ventilation opening enables communication between the first chamber and the second chamber; the radiator is at least partially arranged in the first chamber; the electronic component is arranged in the second chamber and is in heat conducting connection with the radiator; and the cooling fan is used for supplying air.

Abstract: A micro light emitting device includes an epitaxial structure, a conductive layer, and a first insulating layer. The epitaxial structure has a first surface and a second surface opposite to the first surface, and includes a first semiconductor layer, an active layer and a second semiconductor layer that are arranged in such order in a direction from the first surface to the second surface. The conductive layer is formed on a surface of the first semiconductor layer away from the active layer. The first insulating layer is formed on the surface of the first semiconductor layer away from the active layer, and exposes at least a part of the conductive layer.

Abstract: A direct current circuit breaker handcart and a direct current switch apparatus are provided. In the direct current circuit breaker handcart, the current carrying element is located on the support surface, and includes a main circuit breaker and an auxiliary circuit breaker electrically connected with each other; the commutation element is located on the support surface, is electrically connected with the current carrying element, and includes a commutation capacitor, a commutation inductor, a commutation switch assembly, and a commutation capacitor charger electrically connected with each other; the repulsive assembly is configured to control opening and breaking off of the main circuit breaker; the energy absorbing element is located on the support surface, and is electrically connected with the current carrying element and the commutation element, respectively.

Abstract: A flexible substrate has at least one bendable region. The flexible substrate includes a flexible base, a first electrode layer disposed on the base, a first insulating layer disposed on a side of the first electrode layer away from the base, and a second electrode layer disposed on a side of the first insulating layer away from the base. The first electrode layer includes at least one first detection electrode, and the second electrode layer includes at least one second detection electrode. An orthogonal projection of a first detection electrode on the base overlaps at least partially with an orthogonal projection of a second detection electrode on the base. A region where orthogonal projections of the first detection electrode and the second detection electrode on the base are located overlaps with a bendable region.

Abstract: Disclosed are a shield tunnel segment structure and a construction method thereof. The shield tunnel segment structure includes segment blocks sequentially spliced in a circumferential direction. Each segment block forms a closed annular segment structure, and outer diameters of adjacent annular segment structures gradually increase in an axial direction. At least two adjacent segment blocks of the same annular segment structure form an annular inner groove, and at least one segment block of the adjacent annular segment structures is provided with an inner bump which matches the annular inner groove. At least two adjacent segment blocks of the same annular segment structure form an annular outer groove, and at least one segment block of the adjacent annular segment structures is provided with an outer bump which matches the annular outer groove. The annular outer grooves and the annular inner grooves are staggered in the circumferential direction.

Abstract: A display panel, a display apparatus, and a manufacturing method are disclosed. The display panel includes a base substrate having a first through hole; a conductive structure located on the base substrate and at least partially covering the first through hole; and a display structure including a first display structure, a control line, and a second display structure that are arranged in layers on a side of the base substrate where the conductive structure is located, wherein the first display structure has a second through hole, and the control line is electrically connected to the conductive structure by passing through the second through hole.

Abstract: A remote mapping method, apparatus and device for computing resources, and a storage medium, which are applied to a server. Said method comprises: identifying each FPGA heterogeneous accelerator card in an FPGA BOX; establishing a network communication connection with each FPGA heterogeneous accelerator card via a network interface of each FPGA heterogeneous accelerator card in the FPGA BOX, and establishing a network communication connection between FPGA heterogeneous accelerator cards; mapping each FPGA heterogeneous accelerator card to the server; establishing network transmission for the established network communication connections, and migrating a control flow and a data flow that are performed by the PCIE to the network transmission; and deploying a target application in the FPGA BOX through the established network transmission, and when running the target application, performing data exchange with the FPGA BOX via the network transmission.

Abstract: A server cluster determines a first memory requirement of a first distributed application, where the first memory requirement indicates a memory size. The server cluster determines N first server nodes in the server cluster based on the first memory requirement and an available memory resource of each server node in the server cluster, and constructs a first memory pool based on the N first server nodes. The server cluster provides a service for the first distributed application based on the first memory pool.

Abstract: A multi-axis turntable includes a base, a rocker arm and a first driving device capable of driving the rocker arm to rock around the first rotation axis on the base. A swing arm and a second driving device, which is capable of driving the swing arm to swing around the second rotation axis on the rocker arm, are provided on the rocker arm. A workbench and a third driving device for driving the workbench to rotate around the third rotation axis are provided on the swing arm. The second rotation axis and the third rotation axis are parallel to each other or on different planes. Compared with the existing double rotating shaft turntable, the multi-axis turntable of the present invention has a cutting tool system of good and stable rigidity.

Abstract: An electric control box includes a shell, a mounting plate, and a heat exchanger; the mounting plate and the heat exchanger are connected by screw-thread fitting of a first fastener and corresponding connecting holes, the mounting plate and the heat exchanger are located inside the shell, and the heat exchanger is located between the mounting plate and an inner bottom face of the shell; the mounting plate and the shell are connected by screw-thread fitting of a second fastener and corresponding connecting holes.

Abstract: An adaptive characteristic spectral line screening method and system based on atomic emission spectrum are provided, the method includes: using a set characteristic screening optimization method to perform a plurality of optimization rounds of characteristic screening, obtaining an initialized spectral dataset of each round of the characteristic screening and initialized characteristic population genes; obtaining an optimal characteristic population gene of each round by a set analysis method, a fitness function, and an iteration of a genetic algorithm; obtaining an optimized characteristic spectral information set when the plurality of optimization rounds reach set optimization rounds; performing combination statistics and discriminant analyses on the optimized characteristic spectral information set to complete an adaptive characteristic spectral line screening.

Abstract: A support on the cleaning device includes trays; a water outlet channel is formed on each tray; a height difference is formed between two sides of the water outlet channel, such that when flowing in a direction from high to low, a fluid m the tray and used for cleaning can cross the water outlet channel and is kept from flowing out through the water outlet channel, and when the fluid in the tray flows in a direction from low to high, the fluid can flow out through the water outlet channel. The height difference formed between the two sides of the water outlet channel is used to combine cleaning and scraping of the cleaning device by the tray with discharging of the fluid; the cleaning device is scraped clean by a high end formed by the height difference.

Abstract: A space recommendation method based on an air conditioning system includes: obtaining a user space usage request that includes demand information of a user for a space; and determining a current energy consumption amount of each of a plurality of air conditioning units of the air conditioning system. Each of the plurality of air conditioning units includes a plurality of air conditioning terminal devices, the plurality of air conditioning terminal devices is respectively arranged in a plurality of spaces; determining a candidate space based on the current energy consumption amount; and recommending an available space based on the demand information and the candidate space.

Abstract: A method for controlling an outdoor unit of an air conditioner includes: obtaining a first temperature of an environment in which the outdoor unit in a standby state is located; controlling the outdoor unit to operate for a first predetermined duration, and obtaining a second temperature of the environment in which the outdoor unit is located; reading a real-time temperature of the environment from a cloud server based on a range of a temperature difference between the second temperature and the first temperature; and controlling an operation of the outdoor unit based on a temperature difference between the real-time temperature of the environment from the cloud server and the second temperature.

Abstract: Disclosed is a privacy-preserving neural network prediction system in the technical field of information security. The system includes a client, a server and a third party device. Off-line, the client, the server and the third party complete model parameter sharing through negotiation. Online, the client sends/shares input data to the server. The client and the server use a secure calculating protocol to jointly execute neural network prediction with privacy preservation. The server returns an obtained prediction result to the client, and the client reconstructs the prediction result. Only one round of communication interaction is required, and the amount of communication overhead is reduced, so that the communication efficiency significantly improves. The calculations in the present system may be based on a ring, rather than a domain. The present system also (re)customizes the offline protocol, which improves the offline efficiency and requires only a lightweight secret sharing operation.

Abstract: A heat exchanger, an electric control box, and an air conditioning system. The heat exchanger includes a heat exchange body and a collecting tube assembly. Multiple micro-channels are disposed in the heat exchange body. The collecting tube assembly includes at least two collecting tubes. At least a portion of the micro-channels passes through one collecting tube of the at least two collecting tubes and are communicated with a remaining one of the at least two collecting tubes.

Abstract: A heat exchanger includes: at least two plate bodies and a collecting tube, wherein the plate bodies are provided with a plurality of micro-channels, each plate body includes a body part and a connecting part, one end of the connecting part is connected to the body part, and the body parts of the at least two plate bodies are stacked on each other; a wall of the collecting tube is provided with at least two connecting holes; and a first spacing is provided between two adjacent connecting holes of the at least two connecting holes, a second spacing is provided between the body parts of two adjacent plate bodies of the at least two plate bodies, and the first spacing is greater than the second spacing.