Abstract: The present disclosure provides a method for sweat volume detection based on sweat print imaging, comprising: obtaining a raw data set, the raw data set including at least one sweat print image formed by dropping different volumes of sweat on a test paper under different environmental parameters; obtaining a color value extreme of the sweat print image and dividing the sweat print image into at least one region; calculating a sweat error based on a total sweat collection volume and a real sweat volume; obtaining a trained error prediction model; obtaining a to-be-tested sweat print image and current environmental parameters; inputting the current environmental parameters and a count of regions of the to-be tested sweat print image into the trained error prediction model to determine a sweat error of the to-be-tested sweat print image; calculating a sweat volume and a sweat rate based on the sweat error.

Abstract: The present disclosure provides a method and an Internet of Things (IoT) system for full-cycle management of smart gas equipment based on the big data, implemented by a smart gas equipment management platform of IoT system for full-cycle management of smart gas equipment based on big data. The method comprises obtaining operation data of gas equipment by generating a data obtaining instruction based on a preset cycle, generating a partitioning instruction based on the operation data, determining first partitioning data and second partitioning data based on the partitioning instruction, and determining a maintenance scheme for the gas equipment based on the first partitioning data and/or the second partitioning data.

Abstract: A device for separating and recovering flat-plate catalyst powder and a method for determining a wear ratio are provided. The device includes a powder separation unit and a powder recovery unit, a powder accumulation bin is respectively connected with a shell and a catalyst powder outlet, a cyclone outlet is configured on an inner side of a recovery shell, and a primary filter and a secondary filter are configured on an inner side wall of the recovery shell.

Abstract: Provided is a flange (100) connected to an end of an insulating tube (10), the flange includes a flange plate (110) abutting the end of the insulating tube, a groove (111) recessed toward inside of the insulating tube is disposed on the flange plate, the groove is connected to the insulating tube, an inflation valve (120) is disposed within the groove, the groove is filled with sealing material (130) which covers the inflation valve. Provided are also insulator and insulated support post using the flange. The flange, the insulator and insulated support post help to protect the inflation valve from external force and the groove is filled with the sealing material to ensure the sealing performance of the flange.

Abstract: A bismuth oxide material with a hierarchical structure in gas detection used for detecting the content of low-concentration ammonia in an environment. The bismuth oxide material with the hierarchical structure integrally presents a microsphere shape. The diameter of the microsphere is 1-3 ?m. The bismuth oxide material is formed by self-assembling lamellar structure units with the thickness of 10-80 nm. The bismuth oxide material is made into a gas sensor with high sensitivity and selectivity to ammonia gas at room temperature, which is suitable for detecting trace harmful gas in the environment. The gas sensor made of bismuth oxide does not need to be heated when in use, so that the heating step of the conventional gas sensor is omitted, and the gas sensor can be directly placed in a normal-temperature environment for operation. The method is simple, easy to operate, high in efficiency and wide in application prospect.

Abstract: A method for assessing short-term voltage stability of a power grid based on synchronous spatio-temporal information learning includes: performing a time-domain simulation for each transient fault of a power grid under each operating mode, and extracting temporal response trajectories of each monitoring bus and stability status information of the power grid to obtain a transient sample set; constructing a spatial adjacency matrix and a temporal adjacency matrix separately, and integrating the spatial adjacency matrix and the temporal adjacency matrix into a spatio-temporal adjacency matrix; performing synchronous spatio-temporal information learning by using a graph convolutional neural network algorithm, and performing training to obtain a short-term voltage stability assessment model driven by spatio-temporal information synchronization; and inputting a transient temporal responsive trajectory obtained into the short-term voltage stability assessment model, to obtain an assessment result of short-term volta

Abstract: A display substrate includes a driving circuit layer arranged on a base and a light emitting structure layer arranged on one side, away from the base, of the driving circuit layer; the light emitting structure layer includes an anode, a pixel definition layer, an organic light emitting layer, a cathode, and an auxiliary electrode; the pixel definition layer has a first pixel opening exposing the anode and a second pixel opening exposing the auxiliary electrode; the organic light emitting layer connected to the anode and the cathode connected to the organic light emitting layer are arranged in the first pixel opening; the organic light emitting layer separated from the auxiliary electrode and the cathode located on one side, away from the base, of the organic light emitting layer are arranged in the second pixel opening; and the cathode is connected to the auxiliary electrode in the second pixel opening.

Abstract: A display panel includes a substrate, and a pixel defining layer and a cathode layer that are laminated on the substrate. The pixel defining layer includes a plurality of strip-shaped first pixel defining structures and a plurality of strip-shaped second pixel defining structures. A slope angle of the second pixel defining structure is greater than a slope angle of the first pixel defining structure, and the second pixel defining structure is configured to separate portions of the cathode layer on two sides of the second pixel defining structure.

Abstract: A method and a system for building a short-wave, medium-wave and long-wave infrared spectrum dictionary are provided.

Abstract: A display substrate, a method for fabricating the same, and a display panel are provided. The display substrate includes: a substrate, and a first conductive layer, at least two insulation layers, and a second conductive layer, the second conductive layer being electrically connected with the first conductive layer through via-holes, and the at least two insulation layers including a first insulation layer in contact with the first conductive layer, wherein the display substrate further includes an assisting alignment structure on the surface of the first insulation layer, and the orthographic projection of the assisting alignment structure surrounds at least part of the edge of the orthographic projection of the first via-hole in the first insulation layer on the substrate, so that the orthographic projection of the first via-hole on the first conductive layer lies within the pattern of the first conductive layer.

Abstract: Disclosed are a coating composition, a preparation method therefor and use thereof. The coating composition comprises a composition of at least 60% heat-expandable microspheres having a wall thickness of less than or equal to 5 ?m, a water-based thermoplastic resin, a water-based thermosetting resin, and a hot-melt filling resin. By means of the coating composition of the present invention, thin-shell spheres can be quickly softened and destroyed within a short time in the heat-expansion process, and with the volatilization of an organic solvent, the coating composition cross-links, on the surface and inside of the coating, with a resin matrix in the coating to form a cross-linked network structure, thus strengthening the gap support of the coating, and enabling the coating to achieve stepped expansion, and after expansion, some polymer materials wrap an airbag and harden to form a stable hollow structure.

Abstract: A reasonable millisecond time control method for excavation blasting of a tunnel is provided, and includes: acquiring physical mechanical parameters to establish a millisecond blasting model, and designing four dimensions blasting parameters of explosive quantity, hole number, inter-hole millisecond and inter-row millisecond; simulating, based on the millisecond blasting model, a blasting process of an explosive package using blasting parameters to obtain a blasting vibration curve; obtaining single-hole blasting vibration waveforms, solving a vibration synthesis curve through a vibration synthesis theory; comparing the vibration synthesis curve with the blasting vibration curve to obtain a coupling relationship of blasting parameters; determining a target group of explosive quantity and hole numbers, determining a target millisecond through the coupling relationship of blasting parameters, and relating a millisecond blasting control strategy to control, and it is used for tunneling project to reduce cut blas

Abstract: A method for manufacturing a display panel includes: sequentially forming a conductive pattern, a light-emitting layer and a cathode layer on a substrate. The conductive pattern is formed by a one-time patterning process, and includes an auxiliary electrode layer. In a direction parallel to the substrate, both the first protective electrode and the second protective electrode in the auxiliary electrode layer extend over the metal electrode, a second orthographic projection of the second protective electrode on the substrate is within a first orthographic projection of the first protective electrode on the substrate, and an outer boundary of the second orthographic projection is staggered from an outer boundary of the first orthographic projection. The cathode layer is in contact with the first protective electrode and a sidewall of the metal electrode.

Abstract: The present disclosure provides a visual perception method and apparatus, a perception network training method and apparatus, a device and a storage medium. The visual perception method recognizes the acquired image to be perceived with a perception network to determine a perceived target and a pose of the perceived target, and finally determines a control command according to a preset control algorithm and the pose, so as to enable an object to be controlled to determine a processing strategy for the perceived target according to the control command. According to the perception network training method, acquire image data and model data, then generate an edited image with a preset editing algorithm according to a 2D image and a 3D model, and finally train the perception network to be trained according to the edited image and the label.

Abstract: Techniques are disclosed for distributing data in a content delivery network configured to provide edge services using a plurality of service providers. Data indicative of data usage and cost data for the plurality of service providers is accessed. Based on the accessed data, an effective unit cost, multiplex efficiency, and channel utilization are determined for a selected user. A Bayesian optimization algorithm is applied to at least a portion of the accessed data. The content delivery network is configured to redistribute data traffic for the selected user based on a result of the applied Bayesian optimization algorithm.

Abstract: The present disclosure discloses an active perception system for a double-axle steering cabless mining vehicle. The adaptive perception system includes: an environment perception mapping module, a single-frame target detection module, a multi-frame data association module, a cloud control platform, a decision-making and planning module, and a vehicle control module. The double-axle steering autonomous driving mining vehicle can be actively adjusted to be in a forward advancing mode or a backward advancing mode according to the driving mode and comprehensive information of a sensor. The system improves working efficiency of mining area, and solves the problems of large perception blind area and high risk during turning, uphill and downhill of an existing autonomous driving perception system.

Abstract: A testing device for simulating coalbump includes a testing chamber. A first oil cylinder, a second oil cylinder and a third oil cylinder are provided within the testing chamber; each piston rod of each oil cylinder can stretch or retract. A first reaction seat, a second reaction seat and a third reaction seat are arranged opposite to a side of the first piston rod of the first oil cylinder, a side of the second piston rod of the second oil cylinder and a side of the third piston rod of the third oil cylinder respectively. The testing device includes a shear loading unit including a fourth oil cylinder and a fifth oil cylinder located on a same axis, and a side of a fourth piston rod of the fourth oil cylinder and a side of a fifth piston rod of the fifth oil cylinder are arranged opposite to each other.

Abstract: The disclosure provides, inter alia, antibodies, pharmaceutical compositions containing antibodies, and the use of the antibodies and pharmaceutical compositions to treat or prevent opioid overdoses, to treat opioid use disorder, and to treat or prevent opioid-induced respiratory depression.

Abstract: A spray device includes: a housing; a spray head assembly; and a spray head cover. A liquid storage cavity is provided inside the housing. The spray head assembly partially protrudes from the housing and is in communication with the liquid storage cavity, the spray head assembly including a spray nozzle. The spray head cover is rotatably arranged on the housing and covers the spray head assembly, a spray hole being provided on the spray head cover. When the spray head cover is rotated to a first position, the spray hole is correspondingly in communication with the spray head assembly, and when the spray head assembly is pressed, a liquid vaporization medium in the liquid storage cavity is configured to be sprayed from the spray hole. When the spray head cover is rotated to a second position, the spray head cover covers the spray nozzle and is locked with the housing.

Abstract: The disclosure relates to the technical field of display, in particular to a displaying substrate, a manufacturing method thereof and a display panel. The displaying substrate comprises a passivation layer (28) and a flat layer (29) covering the passivation layer (28), wherein the flat layer (29) comprises a first flat via hole and a plurality of second flat via holes, the passivation layer (28) comprises a first passivation via hole, and the first flat via hole and the first passivation via hole form a first sleeve hole (31); and the hole depth of the first flat via hole is smaller than that of each second flat via hole, and the hole depth of the first passivation via hole is greater than or equal to the difference between the maximum hole depth of all the second flat via holes and the hole depth of the first flat via hole.