Abstract: Disclosed is a method for measuring gas pressure of a close-distance seam group simultaneously, including the following steps: constructing a pressure-measuring drill hole inclined downwards; lowering a first seam piezometer tube, lowering a baffle and a polyurethane blocking material after a tube head reaching a lowermost seam; and installing a gas pressure gauge; lowering a second seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a second layer of seam; and installing the gas pressure gauge; lowering a nth seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a nth layer of seam; and installing the gas pressure gauge; injecting a high-water and quick-solidifying material into the drill hole; and connecting the gas pressure gauges through optical fibers, and connecting the gas pressure gauges with a ground control system.

Abstract: This application provides an image processing method and an electronic device. The image processing method includes: acquiring a plurality of frames of original images; adding a reference coordinate image layer to a second field-of-view image; obtaining an image layer set according to a first field-of-view image, the second field-of-view image, and the reference coordinate image layer; processing, by using a deep learning network model, the image layer set to obtain a first enhanced image; and obtaining a second enhanced image according to the first enhanced image. In the method, since the added reference coordinate image layer reflects a mapping relationship between a field of view corresponding to the first field-of-view image and a field of view corresponding to the second field-of-view image, through the addition of the reference coordinate image layer, priori information can be added, so that different adjustments can be made subsequently according to different field-of-view relationships.

Abstract: A screw compressor (100), comprising a screw rotor (110) and a spool valve (120). The screw rotor (110) comprises a suction head end (111) and an exhaust tail end (112). Gas is sucked in from the suction head end (111) and compressed gas is discharged from the exhaust tail end (112). The spool valve (120) comprises a working side (125) for sealing a compression chamber of the screw rotor (110). The working side (125) comprises a spool valve head end (121) and a spool valve tail end (122) and can do a reciprocating motion along the axis direction of the screw rotor (110). When the spool valve (120) moves to a suction capacity adjusting position (240), the spool valve head end (121) is located at the inner side of the suction head end (111) of the screw rotor (110), and a suction capacity adjusting distance (D2) is formed between the spool valve head end (121) and the suction head end (111) so that the suction capacity of the screw compressor is adjusted.

Abstract: The present application relates to an anti-tumor compound and a preparation method and use thereof, and in particular to a compound or a tautomer, a mesomer, a racemate, an enantiomer or a diastereoisomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, and a preparation method and use thereof.

Abstract: A display panel includes: a silicon-based substrate, a driving layer, a first electrode layer, an organic light emitting layer, a second electrode layer and a plurality of pads. The display signal access pad is configured to access the display signal during a display phase, the test signal access pad at least includes a first group of test phase access pads, and the first group of test phase access pads includes a first pad and a second pad, the first pad is electrically connected with the electrode ring, and the second pad is electrically connected with the silicon-based substrate.

Abstract: A medical stent includes a covered segment and a naked segment. The covered segment includes a cut stent body and a film material arranged on the cut stent body. At least one end of the covered segment is connected with the naked segment, and at least one of the naked segments includes a braided stent body. The covered segment includes a first section, and the medical stent is configured such that an inner diameter of the first section in a first expansion state is smaller than an inner diameter of the cut stent body in a free state, and when the first section is subjected to a radially outward force, the first section expands radially outward. The medical stent has good flexibility and support, is easy to push, and can adjust the inner diameter of the first section according to actual needs, and has good universal applicability.

Abstract: A transistor comprising a first drain region split into first and second drain sub-regions aligned lengthwise and separated by a first low conductivity region, a first source region disposed on a first side of the first drain region split into first and second source sub-regions aligned lengthwise and separated by a second low conductivity region, a second source region disposed on a second side of the first drain region opposite the first side, the second source region split into third and fourth source sub-regions aligned lengthwise and separated by a third low conductivity region, a first gate electrode finger disposed over first and second active regions between the first drain region and first source region, and a second gate electrode finger disposed over third and fourth active regions between the first drain region and second source region.

Abstract: An example apparatus for detecting objects in video frames includes a receiver to receive a plurality of video frames from a video camera. The apparatus also includes a first still image object detector to receive a first frame of the plurality of video frames and calculate localization information and confidence information for each potential object patch in the first frame. The apparatus further includes a second still image object detector to receive an adjacent frame of the plurality of video frames adjacent to the first frame and calculate localization information and confidence information for each potential object patch in the adjacent frame. The apparatus includes a similarity detector trained to detect paired patches between the first frame and the adjacent frame based on a comparison of the detected potential object patches.

Abstract: Disclosed is a cleaning robot. The cleaning robot includes a body, a traveling assembly, a rolling brush assembly, a dust suction assembly, a mopping assembly, and a universal wheel. The traveling assembly, the rolling brush assembly, the dust suction assembly, the mopping assembly, and the universal wheel are all arranged on the body. The dust suction assembly includes a dust box. The rolling brush assembly is configured for sweeping garbage on a ground. The dust box is configured for receiving garbage swept by the rolling brush assembly. In an advancing direction of the cleaning robot, the dust box is arranged in front of the rolling brush assembly, and the mopping assembly and/or the universal wheel is arranged behind the rolling brush assembly.

Abstract: A series-parallel monorail hoist based on an oil-electric hybrid power and a controlling method thereof. The monorail hoist includes a cabin, a hydraulic driving system, a lifting beam, a gear track driving and energy storage system, and a speed adaptive control system connected in series with each other and travelling on a track. The monorail hoist is capable of implementing an independent drive by an electric motor or a diesel engine in an endurance mode, a hybrid drive of the electric motor and the diesel engine in a transportation mode, and a hybrid drive of the diesel engine and a flywheel energy storage system in a climbing mode, according to different operating conditions that include conditions of an upslope, a downslope and a load. Power requirements for the monorail hoist under various operating conditions are satisfied, and the excess energy is recovered during the process of travelling.

Abstract: The present disclosure relates to the technical field of fiber-optic gas sensing and laser photoacoustic spectroscopy, and reliability of a gas detection system is improved by actively selecting a working frequency of low noise interference combined with an optical fiber photoacoustic sensing probe capable of isolating high-frequency noise. A gas enters a photoacoustic microcavity through gaps on a sound-sensitive diaphragm after diffusing into a miniature air chamber through a plurality of micropores. Photoacoustic excitation light is incident into the photoacoustic microcavity through a fiber-optic collimator and then excited to generate a photoacoustic pressure wave to cause the sound-sensitive diaphragm to vibrate periodically. An end face of a single-mode optical fiber and the sound-sensitive diaphragm constitutes a fiber-optic Fabry-Perot interferometer. The interferometer measures a deflection of the diaphragm and inverts a concentration of the to-be-measured gas.

Abstract: Described herein is a weft-knitted spacer fabric and a preparation method thereof, a polyurethane foam composite material including the fabric, a preparation method of the composite material and its use in shoe materials. The weft-knitted spacer fabric consists of an upper surface layer, intermediate spacer yarns, and a lower surface layer, and the upper surface and the lower surface layer are connected by the tuck of the spacer yarns in the upper surface and the lower surface layer to form a three-dimensional structure in an integrated manner. The different selected tuck needle changes the connecting distance and the number of connections of the tuck, and the thickness of the spacer fabric and the arrangement density of the spacer yarns are changed by the action of the upper and lower surface layers of elastic yarns.

Abstract: Disclosed is a plane grating calibration system, comprising an optical subsystem, a frame, first vibration isolator, a vacuum chuck, a workpiece stage, second vibration isolator, a base platform and a controller; the optical subsystem is mounted on the frame, and the frame is isolated from vibration by the first vibration isolator; the vacuum chuck is rotatably mounted on the workpiece stage, the workpiece stage is positioned on the base platform, and the base platform is isolated from vibration by the second vibration isolator. A displacement interferometer is integrated into the optical subsystem, and the entire optical subsystem adopts a method of sharing a light source, thereby avoiding the problems of low wavelength precision and poor coherence of separate light sources.

Abstract: Embodiments of this application disclose a packet transmission method and a related apparatus. An access network device receives a first packet from an Internet-of-things (IoT) function network element; the access network device obtains first information, where the first information indicates that the first packet includes a passive or semi-active IoT instruction; and the access network device performs a passive or semi-active IoT operation based on the first packet. According to the foregoing method, the access network device learns that the packet from the IoT function network element is related to a passive or semi-active internet of things, and the access network device performs the passive or semi-active IoT operation based on the first packet. This resolves a packet transmission problem in a scenario in which a passive or semi-active IoT system is converged with a cellular network.

Abstract: This application relates to systems and methods for facilitating online search based on offline transaction data.

Abstract: Provided is a display substrate, including: a silicon-based substrate having a display area, a binding area located on one side of the display area, and a trace area located between the display area and the binding area; a trace protection structure is arranged on the silicon-based substrate in the trace area, and a pad assembly is integrated in the silicon-based substrate in the binding area; and a minimum distance between an edge of an orthographic projection of the trace protection structure on the silicon-based substrate and an edge of an orthographic projection of an opening of the pad assembly on the silicon-based substrate is smaller than a maximum size of one subpixel.

Abstract: A display panel includes a drive backplane, a transparent insulating layer and a light-emitting device layer. The drive backplane includes a driving circuit layer, a metal wiring layer, a first insulating layer and a reflective electrode layer. The first insulating layer has first via holes filled with first metal connectors. The reflective electrode layer includes first reflective electrodes respectively connected with the metal wiring layer through the first metal connectors. The light-emitting device layer includes a pixel electrode layer, an organic light-emitting layer and a common electrode layer. The pixel electrode layer includes first pixel electrodes respectively connected with the first reflective electrodes through the connection via holes. A distance between an orthographic projection of the connection via hole on the pixel electrode layer and an edge of the first pixel electrode is not less than a first threshold value.

Abstract: Provided herein are tuberculatin analogs that are useful as antivirals, such as anti-HIV, anti-coronaviral, anti-Ebola viral, and anti-influenza viral agents and methods of use thereof.

Abstract: Embodiments of this application disclose methods, systems, and apparatuses for information transmission. In an example method, a network device receives a first passive internet of things instruction, and sends the first passive internet of things instruction to a terminal. The first passive internet of things instruction is an instruction to be sent to a tag, and the terminal is a helper of the tag.

Abstract: Disclosed is a method for measuring gas pressure of a close-distance seam group simultaneously, including the following steps: constructing a pressure-measuring drill hole inclined downwards; lowering a first seam piezometer tube, lowering a baffle and a polyurethane blocking material after a tube head reaching a lowermost seam; and installing a gas pressure gauge; lowering a second seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a second layer of seam; and installing the gas pressure gauge; lowering a nth seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a nth layer of seam; and installing the gas pressure gauge; injecting a high-water and quick-solidifying material into the drill hole; and connecting the gas pressure gauges through optical fibers, and connecting the gas pressure gauges with a ground control system.