Abstract: The present invention discloses an OPC UA based multi-mechanical device interconnection and intercommunication realization system, which realizes horizontal integration, vertical integration, and arbitrary connectivity between devices and systems by using OPC UA technologies on the basis of multiple different mechanical devices. The software system includes a plurality of different layers, which are a device layer, a device operation layer, a data acquisition layer, a data interaction layer, a network support layer, a data storage layer, an application service layer, and a user interface layer from bottom to top, and each layer has specific functions. The present invention realizes the interconnection and intercommunication of multiple mechanical devices, can realize free communication across the firewall, and has strong reliability, user friendliness, real-time performance, scalability and security.

Abstract: Provided are a display apparatus and a process method for the display apparatus. The display apparatus includes a display; a communicator, communicating with the network; a remote controller; a memory; and a processor configured for executing instructions in the memory to cause the display apparatus to perform: obtaining video source information from a target video source currently played by the display, where the video source information includes signal source information and type information; determining picture modes corresponding to the target video source according to the signal source information and the type information; displaying the picture modes corresponding to the target video source in a picture mode list; in response to a selection instruction for selecting a target picture mode, obtaining image adjustment parameters corresponding to the target picture mode; and adjusting image quality of the target video source according to the image adjustment parameters.

Abstract: Described herein is a supported organotin catalyst and a preparation method for a sucrose-6-carboxylate. The supported organotin catalyst is prepared by coupling an organotin functional group to an inorganic carrier. The supported organotin catalyst of the present application can be used for catalyzing the generation of a sucrose-6-carboxylate, and after reaction, the supported organotin catalyst can be directly filtered and recovered only by adding a small amount of water to quench an acylating agent, so that the subsequent dehydration process is simpler and easier, and the supported organotin catalyst is thus very economical in terms of manpower, equipment and energy.

Abstract: The present disclosure discloses a method for preparing a hierarchical porous material for a molecular sieve with an MFI structure. In the present disclosure, porous silicon dioxide is used as a carrier on a surface of which a nano zeolite seed is loaded, and then subjected to treatment with a secondary growth compound fluid and hydrothermal crystallization, so that a nano zeolite molecular sieve membrane is further grown on the surface of the porous silicon dioxide. The specific surface area and pore volume of the hierarchical porous material for the molecular sieve with the MFI structure prepared by the present disclosure are greatly improved compared with those of the original porous silicon dioxide. The material not only has the macroporous structure of the porous silicon dioxide, but also incorporates micropores of the molecular sieve itself and mesopores formed by molecular sieve agglomeration.

Abstract: The present disclosure discloses a high-temperature fast-curing starch-based adhesive for particleboards and a preparation method thereof, belonging to the technical field of adhesive preparation. The low viscosity of the starch-based adhesive is ensured by selecting a crosslinking monomer which does not self-crosslink in a reaction process in the present disclosure, and a binary crosslinking agent matched with the crosslinking monomer is added before use to be quickly crosslinked with the crosslinking monomer at high temperature so as to ensure better thermosetting property and water resistance as well as faster curing speed of the starch-based adhesive at the same time, which meets the requirements of the particleboards for the adhesive, solves the problem of long curing time of the existing starch-based adhesives at high temperatures, further shortens the curing time of the starch-based adhesives to about 60 s, and improves the production efficiency of the particleboards.

Abstract: An end cover assembly, an air cylinder, a tread sweeper and a railway vehicle.

Abstract: The present invention provides a speed measurement method and apparatus using a plurality of cameras. The speed measurement method includes: S1: calibrating positions of the respective cameras in a camera group, which are on a mobile platform at fixed relative positions; S2: obtaining a sequence of synchronized images from the respective cameras in the camera group, and recording time stamps thereof; and S3: performing a registration on the images captured by the respective cameras in the camera group and, if a registration result of two of the images is greater than a first threshold, calculating a position transformation matrix for the two images, and then calculating a position transformation matrix for the mobile platform based on the positional relationships between the cameras that captured the two images, and finally calculating a speed information of the mobile platform based on the position transformation matrix and an interval between times when the two images were captured.

Abstract: An air guide ring for an air conditioner outdoor unit is provided. The air guide ring includes an air guide ring body. An air guide channel is defined in the air guide ring body. The air guide ring body includes a first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion are configured to fit with a fixing member of the air conditioner outdoor unit and to implement bi-directional limiting, so as to prevent inward contraction deformation and outward expansion deformation of the air guide ring body from occurring.

Abstract: For the problem of difficult roof anchor withdrawal at the end of a working face, a static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end.

Abstract: The present disclosure provides a method, device and equipment for identifying and detecting a macular region in a fundus image. The method includes the following steps: reading a current fundus image to be positioned and detected; detecting a macular region in the fundus image using a target detection model; when the macular region in the fundus image is not detected, detecting an optic disk region in the fundus image, and identifying and positioning the macular region based on the detected optic disk region; based on a positioning result of the macular region, extracting a macular image corresponding to the macular region from the fundus image; and performing multi-modal processing on the macular image, fusing images obtained by the multi-modal processing to obtain a fused image, and detecting whether the macular region is qualified or not according to the fused image.

Abstract: An image classification method, apparatus, and device. The method includes: inputting a to-be-classified image dataset, where the image dataset includes to-be-classified images; cropping each of the to-be-classified images with a center of the to-be-classified image as a reference center point to obtain an image having a preset size and including a specific region as a standard image; selecting a pixel array of any single channel in the standard image and drawing a corresponding signal waveform graph based on the pixel array; and determining a type of the to-be-classified image. After the standard image including the specific region is obtained by cropping the to-be-classified image, the pixel array of the any single channel is selected from the standard image, and then the signal waveform graph is drawn based on the selected pixel array of the single channel, to classify the to-be-classified image based on the drawn signal waveform graph.

Abstract: The disclosure provides a micro-wave transducer and a manufacturing method thereof, and belongs to the technical field of communication. The micro-wave transducer includes: a dielectric layer having a first surface and a second surface oppositely arranged; a first electrode layer arranged on the first surface of the dielectric layer, and the reference electrode layer being provided with at least one first opening; at least one transducer electrode arranged on the second surface of the dielectric layer, wherein an orthographic projection of one transducer electrode on the dielectric layer is within an orthographic projection of one first opening on the dielectric layer; at least one first microstrip line arranged on the second surface of the dielectric layer, wherein one first microstrip line is configured to feed one transducer electrode.

Abstract: Disclosed is a medical treatment apparatus. The medical treatment apparatus includes a magnetic resonance imaging (MRI) device, configured for imaging of a specific region including a target object and generating a magnetic resonance image; a laser interstitial thermal therapy (LITT) device, including an LITT probe, the LITT probe being positioned close to the target object based on the magnetic resonance image, and being configured to treat the target object by emitting laser; and a temperature measurement element, the temperature measurement element and the LITT probe being integrated as an integrated probe, and the temperature measurement element being configured to obtain a temperature of the target object.

Abstract: Disclosed is a medical treatment apparatus. The medical treatment apparatus includes a magnetic resonance imaging (MRI) device, configured for imaging of a specific region including a target object and generating a magnetic resonance image; a laser interstitial thermal therapy (LITT) device, including an LITT probe, the LITT probe being positioned close to the target object based on the magnetic resonance image, and being configured to treat the target object by emitting laser; and a temperature measurement element, the temperature measurement element and the LITT probe being integrated as an integrated probe, and the temperature measurement element being configured to obtain a temperature of the target object.

Abstract: Provided is a method for correcting an image. In the method, the shooting device displays a preview picture, wherein the preview picture at least includes frames of a projection screen and a projected image; the shooting device displays adjustment prompt information in response to at least two of the frames of the projection screen in the preview picture being beyond a target region of the preview picture, wherein the adjustment prompt information is configured to instruct to adjust shooting parameters of the camera; the shooting device acquires, in response to a shoot operation, a shot image captured by the camera; the shooting device sends the shot image to a laser projection device; and the laser projection device corrects a projected image for display based on the shot image.

Abstract: An organic electroluminescent device and a display apparatus. The organic electroluminescent device includes a light-emitting layer, including a triplet-triplet annihilation type host and a fluorescent dye, where the fluorescent dye has a structure represented by the following Formula (1) or Formula (2). When the fluorescent dye in the light-emitting layer of the organic electroluminescent device combines with the triplet-triplet annihilation type host, the voltage of the device can be reduced, and the luminescence efficiency of the device can be improved.

Abstract: The present disclosure provides a method and system for detecting a fundus image based on a dynamic weighted attention mechanism. Lesion information in a fundus image of a premature infant is detected using a fundus image segmentation model. First, the fundus image is consecutively downsampled. Dynamical weighted attention fusion is performed on an obtained downsampling feature and an obtained downsampling feature of an adjacent layer. The weighted and fused features are fused with an output feature of a corresponding upsampling layer. Finally, a classification convolution operation is performed on an output of an n-th upsampling layer to obtain a lesion probability for each pixel.

Abstract: The present disclosure relates to the field of display technologies, and particularly discloses an organic electroluminescent device. The organic electroluminescent device has a first electrode, a second electrode, and an organic functional layer. The organic functional layer comprises a light-emitting layer. The light-emitting layer comprises at least a host material and a guest material. The host material comprises an exciplex composed of a donor molecule and a receptor molecule, wherein the donor molecule and/or the receptor molecule contains a large steric hindrance substituent group X for increasing an inter-molecular distance between the donor molecule and the receptor molecule, which enables to enhance Foster energy transfer to the guest material molecule, improve device efficiency, inhibit Triplet-Polaron Annihilate Annihilation (TPA), and prolong the device lifetime.

Abstract: The present disclosure relates to display technologies, and particularly discloses an organic electroluminescent device. This organic electroluminescent device includes a light-emitting layer, the light-emitting includes an exciplex composed of a donor molecule and an acceptor molecule, and a wide band gap material for increasing the inter-molecular spacing between the donor molecule and the acceptor molecule. According to the device of the present disclosure, the degree of orbital overlap of HOMO and LUMO of the formed exciplex and the singlet-triplet energy level difference can be reduced, the reverse intersystem crossing rate (kRISC) of the exciplex host can be increased, the Föster energy transferred to the guest molecule can be enhanced, and the efficiency and the lifetime of the device can be improved.