Abstract: The present disclosure relates to a method of extracting spatiotemporal features of electrocardiogram (ECG) and photoplethysmography (PPG) signals corresponding to each other using a neural network and of estimating blood pressure on the basis of the spatiotemporal features. The method includes: generating a target signal of a plurality of channels by respectively combining ECG signals and PPG signals corresponding to each other; extracting a first feature composed of a plurality of channels by inputting the target signal of a plurality of channels into a 1D convolution layer; generating a channel-wise weight vector by compressing the first feature; computing a second feature composed of a plurality of channels by applying the channel-wise weight vector to the first feature; extracting a third feature by inputting the second feature into a CNN model; and determining systolic and diastolic blood pressures by inputting the third feature into an LSTM model.

Abstract: A flexible ultrasonic sensor with an ultrasonic-driven liquid metal as a conductive material and a manufacturing method thereof are provided. The method includes: pumping a liquid metal into an inflow channel with a pre-embedded copper wire in an ultrasonic pumping mode; in a vacuum atmosphere, enabling a encapsulation film subjected to oxygen plasma treatment to slowly fall on the previously obtained material through a clamping apparatus; clamping a piezoelectric organic polymer by the obtained material and a liquid metal electrode bottom plate, enabling the piezoelectric organic polymer to be located at a central position through a positioning plate, and pasting a flexible encapsulation layer to a lower part of a whole device in the vacuum atmosphere; and sintering upper and lower layers of liquid metal electrodes by power ultrasound after heating to ensure electrical connectivity, thereby completing manufacturing of the flexible ultrasonic sensor.

Abstract: A slide rail assembly includes a first rail with a positioning structure, a second rail displaceable relative to the first rail and providing a concave surface on the back to face the positioning structure, a first stopper pivotally connected to the concave surface corresponding to the first side of the positioning structure, and an operating member movably connected to the second rail and placed on the concave surface so that the operating member is on the side of the first stopper. The slide rail assembly can be installed on the side of the carrier, which can be a server case or drawer, or can be used on servers or furniture.

Abstract: A display panel and a display device are provided. The display panel includes a main display area, and display area(s) surrounded by the main display area. The display panel includes first light-emitting devices disposed in the display area(s); first pixel driving circuits disposed in the display area(s), and electrically connected to the first light-emitting devices respectively for driving the first light-emitting devices to emit light; a first wiring layer connected between first pixel driving circuits and first light-emitting devices; a signal wiring layer electrically connected to the first pixel driving circuits and partially overlapping the first wiring layer; and a capacitive barrier layer disposed between the first wiring layer and the signal wiring layer and including at least one organic insulating layer.

Abstract: A display panel includes sub-pixels in a first region, sub-pixels in a second region, and a processor. The processor is configured to determine a luminance compensation signal based on a difference between a first operating temperature of the first region and a second operating temperature of the second region according to a predetermined correlation of temperature to luminance; and control data lines and gate lines associated with the first region or the second region to output the luminance compensation signal to the first region or the second region through the data lines associated with the first region or the second region, to compensate luminance of the first region or the second region.

Abstract: A system (100) for manufacturing an extrudate (10), such as a honeycomb body, is provided. The system comprises an extruder (102). The extruder is configured to form an extrudate from a wet mixture, such as a ceramic forming mixture. The system further comprises a radiative heat assembly (104). The radiative heat assembly is configured to heat the extrudate. The radiative heat assembly comprises one or more IR light sources (112). The one or more IR light sources are arranged as one or more rings around the extrudate. The system further comprises a differential pressure assembly (108). The differential pressure assembly is configured to remove at least a portion of water vapor from around the extrudate. The differential pressure assembly can direct an air flow out of a chamber (136) formed by a housing (132) surrounding the radiative heat assembly. Alternatively, the differential pressure assembly can direct an air flow into the chamber.

Abstract: The present invention relates to a method for estimating blood pressure from photoplethysmography (PPG) signals. The blood pressure estimation method using the CFR model according to an embodiment of the present invention is characterized in that it comprises the steps of extracting a plurality of blood flow characteristics from PPG signals for training, calculating systolic and diastolic blood pressures from ambulatory blood pressures for training, labeling the systolic and diastolic blood pressures with the plurality of blood flow characteristics to train a cascade forest regression model, and inputting the PPG signals of a target user into the trained cascade forest regression model to determine the systolic and diastolic blood pressures of the target user.

Abstract: The present disclosure provides a luminance adjustment method and device of a display panel. In the method, firstly, a difference between the luminance parameters of different regions of the target panel are obtained, and temperatures of different regions of the target panel are obtained according to the difference of the luminance parameters of the different regions of the target panel. Then, luminance compensation parameters of the corresponding regions are obtained according to a correlation of the luminance to the temperature and a difference of the operating temperatures of the different regions, and finally, the luminance of a corresponding region is compensated according to the luminance compensation parameters.

Abstract: Provided are an array substrate and a manufacturing method therefor, a display panel, and a display device. The array substrate includes: a plurality of electrodes arranged in an array. The electrode includes a plurality of strip electrodes that are connected to each other and spaced. The plurality of strip electrodes at least have two thicknesses. A distance between two adjacent strip electrodes is less than a preset value. During manufacturing, a mask used for forming each layer of sub-electrodes includes a plurality of strip-shaped shading regions that are connected to each other and spaced in a first direction. Strip-shaped shading regions in a mask used for sub-electrodes formed subsequently are integrally shifted by a first distance in the first direction relative to strip-shaped shading regions in a mask used for sub-electrodes formed last time.

Abstract: Provided are a fusing and degradation method and apparatus for a micro-service, a device, a medium, and a program product, which relate to the field of the Internet, in particular to the field of fusing and degradation. The specific implementation is as follows: instantiating, by a monitoring probe woven into a micro-service traffic process, a fuse component according to an obtained fusing and degradation rule, and weaving, by the monitoring probe, the fuse component into the traffic process, where the fuse component is used for performing fusing and degradation on a traffic request processed in the traffic process. The fusing and degradation technology during the running of a micro-service is achieved through a probe so that the micro-service developer can fuse and degrade a micro-service application that is running without hard coding, thereby improving the efficiency and stability of the micro-service fusing and degradation.

Abstract: A display panel and a control method thereof are provided. The control method comprises obtaining display information and compensation parameter information of the display panel, wherein the compensation parameter information includes multiple display parameter groups and multiple compensation parameter groups which are in one-to-one correspondence, and the display information is one of the display parameter groups; determining a target compensation parameter group corresponding to the display information from the compensation parameter groups according to the display information and the compensation parameter information; and compensating the light emitting brightness of the display panel according to the target compensation parameter group.

Abstract: The present disclosure provides a luminance adjustment method and device of a display panel. In the method, firstly, a difference between the luminance parameters of different regions of the target panel are obtained, and temperatures of different regions of the target panel are obtained according to the difference of the luminance parameters of the different regions of the target panel. Then, luminance compensation parameters of the corresponding regions are obtained according to a correlation of the luminance to the temperature and a difference of the operating temperatures of the different regions, and finally, the luminance of a corresponding region is compensated according to the luminance compensation parameters.

Abstract: The present disclosure provides a high-resolution graphene heterojunction based pressure sensor. The present disclosure relates to the technical field of pressure sensor design. The present disclosure uses a graphene/hexagonal boron nitride/graphene (G/h-BN/G) vertical heterojunction thin film as a pressure-sensitive diaphragm. A sensor substrate has a micro-nano arrayed concave cavity structure. Under the action of atmospheric pressure, the G/h-BN/G vertical heterojunction thin film generates localized internal stress, which changes an energy band structure of the vertical heterojunction thin film, and thus changes a tunneling current between the two upper and lower graphene layers, thereby reflecting the external atmospheric pressure changes. The principle of the graphene heterojunction based pressure sensor is based on tunneling effect.

Abstract: A display panel and a display device are provided. The display panel includes a main display area, and display area(s) surrounded by the main display area. The display panel includes first light-emitting devices disposed in the display area(s); first pixel driving circuits disposed in the display area(s), and electrically connected to the first light-emitting devices respectively for driving the first light-emitting devices to emit light; a first wiring layer connected between first pixel driving circuits and first light-emitting devices; a signal wiring layer electrically connected to the first pixel driving circuits and partially overlapping the first wiring layer; and a capacitive barrier layer disposed between the first wiring layer and the signal wiring layer and including at least one organic insulating layer.

Abstract: A display panel and a control method thereof are provided. The control method comprises obtaining display information and compensation parameter information of the display panel, wherein the compensation parameter information includes multiple display parameter groups and multiple compensation parameter groups which are in one-to-one correspondence, and the display information is one of the display parameter groups; determining a target compensation parameter group corresponding to the display information from the compensation parameter groups according to the display information and the compensation parameter information; and compensating the light emitting brightness of the display panel according to the target compensation parameter group.

Abstract: An encoding method includes pre-encoding a current video frame in a video stream, to obtain a pre-encoded current video frame, when there is no I frame in M encoded video frames that have been encoded before the current video frame, determining whether the current video frame is a scene switching frame in which scene switching has occurred relative to a previous video frame, based on the pre-encoded current video frame and a pre-encoded previous video frame to the current video frame, M being a preset positive integer, and encoding the current video frame into an I frame when the current video frame is the scene switching frame, and encoding the current video frame into a P frame when the current video frame is not the scene switching frame.

Abstract: A video encoding method includes obtaining a current image frame, performing video image enhancement on a target region in the current image frame, to generate an image-enhanced image frame, the target region including a region in which hopping occurs in a pixel value of a pixel in the current image frame, and encoding the image-enhanced image frame.