Abstract: The disclosure provides at compounds of Formula I, compositions comprising the same, and methods of using the same, including use in treating diseases, disorders of conditions mediated by the signaling of formyl peptide receptor 1 (FPR1).

Abstract: A stormwater runoff treatment substrate includes a lower pyrite substrate layer and an upper biochar substrate layer. The lower pyrite substrate layer includes pyrite, oyster shell powder, and sandy materials in a volume ratio of 10:5:85. The upper biochar substrate layer includes biochar or activated carbon, organic nutrient soil, and sandy materials in a volume ratio of 20:3:77.

Abstract: Provided is a focusing assembly including a focusing barrel and a barrel retaining ring; the focusing barrel includes a first sleeve, a second sleeve, and a third sleeve that are sequentially sleeved from inside to outside of the focusing barrel; the first sleeve is provided with a lens mounting portion for mounting a focusing lens, a first end of the second sleeve is provided with a display screen mounting portion for mounting a display screen, a second end of the second sleeve is detachably connected to the barrel retaining ring, the first end and the second end being opposite ends of the second sleeve; and the lens mounting portion and the display screen mounting portion are configured such that the relative position thereof in a focusing direction of the focusing assembly is adjustable.

Abstract: The present disclosure provides a radiation inspection system, including a container respectively provided with an entrance and an exit on opposite side walls thereof; and a radiation scanning imaging device disposed in the container and having an inspection channel. The radiation scanning imaging device includes a ray source, the ray source includes ray generators, and ray generators are configured to emit ray beams at different angles, so that the radiation scanning imaging device performs radiation scanning inspection on an object to be inspected passing through the inspection channel from the entrance to the exit.

Abstract: The present disclosure provides a radiation inspection device, which has a transportation state and a working state, and includes a container with an adjustable width, and the width of the container in the transportation state is smaller than that in the working state; a radiation inspection apparatus arranged in the container and including a radiation source and a detector, and in the transportation state, the length of the radiation inspection apparatus is arranged along the length direction of the container, and in the working state, the length of the radiation inspection apparatus is arranged along the width direction of the container to perform radiation scanning inspection on vehicles passing through the container along the length direction; a rotating apparatus arranged in the container and configured to rotate the radiation inspection apparatus when the radiation inspection device is switched between the transportation state and the working state.

Abstract: A full-face shaft tunnel boring machine system includes a tunnel boring machine cutterhead device for tunneling downwards in a shaft; a full-hydraulic formwork device for supporting and walling in a wellbore; and an upper muck-discharge system for vertically conveying rock mucks generated by tunneling. The tunnel boring machine cutterhead device comprises a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead that are fixedly connected in a vertical order from top to bottom so as to form an integrated structure. The vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers.

Abstract: A package structure of a bidirectional switch, including a metal bottom plate, a first semiconductor switch, a second semiconductor switch, and a plurality of inner pins. The plurality of inner pins includes a first inner pin, a second inner pin, a third inner pin, a fourth inner pin, and a fifth inner pin. Both a first terminal of the first semiconductor switch and a first terminal of the second semiconductor switch are coupled to the metal bottom plate. A second terminal of the first semiconductor switch is coupled to the first inner pin. A third terminal of the first semiconductor switch is coupled to the second inner pin. A second terminal of the second semiconductor switch is coupled to the third inner pin. A third terminal of the second semiconductor switch is coupled to the fourth inner pin. Each inner pin is coupled to a same lead frame.

Abstract: The present disclosure relates to the technical field of biomedical materials, more particularly to a degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof. The anastomotic staple, with a composite structure, is mainly composed of Mg—Zn—Nd magnesium alloy with high strength and good plasticity (internal part), and corrosion-resistant MgF2 (external part), and is formed by in-situ synthesis of MgF2 with the outer layer of Mg—Zn—Nd magnesium alloy anastomotic staple. The magnesium alloy composite anastomotic staple provided by the present disclosure has good plastic deformation ability and mechanical strength, a low degradation rate, and a high biosafety level, which can meet the in-vivo implantation requirements. In addition, it can gradually degrade in vivo after achieving the medical effects in vivo, avoiding a second operation for removal.

Abstract: Disclosed are an anti-icing material with stealth function, a preparation method and use thereof. The anti-icing material with stealth function according to the disclosure includes an electrically insulating and thermally insulating layer, a patterned heating layer, an electrically insulating and thermally conducting layer, and a hydrophobic layer, that are disposed sequentially through stacking, wherein the patterned heating layer has a patterned hollowed-out structure.

Abstract: Methods, apparatus, systems for calibrating sensors are provided. In one aspect, a sensor includes a radar and a camera, and a first calibration plate is located within a common field of view range of the radar and the camera. A calibration method for the sensor includes: collecting a plurality of first images by the camera, position-orientation information of the first calibration plate in position-orientations in the plurality of first images being different; obtaining a first intrinsic parameter of the camera; determining an extrinsic parameter of the first calibration plate in each position-orientation relative to the camera according to the first intrinsic parameter and the plurality of first images; obtaining multiple sets of radar point cloud data of the first calibration plate in each position-orientation; and determining a target extrinsic parameter between the radar and the camera according to the extrinsic parameter and the multiple sets of radar point cloud data.

Abstract: Methods, apparatus, systems, and storage media for calibrating sensors are provided. In one aspect, a calibration method for a sensor having a camera and a radar includes: collecting a plurality of images of a calibration plate located within a common field of view range of the radar and the camera in respective position-orientations by the camera; collecting multiple sets of radar point cloud data of the calibration plate in the respective position-orientations by the radar; establishing corresponding relationships between the plurality of images and the multiple sets of radar point cloud data based on the respective position-orientations; determining multiple sets of target radar point cloud data matched with the calibration plate in the respective position-orientations among the multiple sets of radar point cloud data; and determining a target extrinsic parameter between the radar and the camera according to the target radar point cloud data and corresponding relationships.

Abstract: An assembly quality detection device and a method for a wind screen cleaning system based on streamline pattern, includes a main body of a test bench and a detection system. The main body of the test bench includes a test bench rack and a cleaning centrifugal fan; the inside of the test bench rack is provided with a cleaning space. The detection system includes a smoke generation and transmission device, a two-degree-of-freedom smoke fixed-point release mechanism, a high-speed image acquisition system and a control system. A fixed base is installed on the upper end of the outlet of the cleaning centrifugal fan, a linear moving guide rail device is installed on the fixed base, the linear moving guide rail device is equipped with a moving slider, the moving slider is installed with a rotating mechanism, the rotating mechanism output end is provided with a smoke releasing duct, the smoke releasing duct is communicated with the smoke generation and transmission device.

Abstract: The present invention describes a system and method for selecting and optimizing a sound stimulus using a deep neural network to regulate and improve human sleep quality. The deep neural network has the capability of characterizing processing of human brain cortical neurons for external stimulus (images, sounds, etc.) information. By inputting massive sound stimuli into the deep neural network, a sound mode which causes model-estimated sleep electroencephalograph to be optimal can be found, the sound mode is applied to a real human body, and the intensity of corresponding sleep waves of the human body in different sleep stages is enhanced through closed-loop optimization so as to realize the purpose of regulating sleep. The present invention mainly aims at solving the technical problem of how to select and optimize, when a sound stimulus means (music, speech, natural sounds, white/colored noise, etc.) is used to assist in human sleep.

Abstract: A threshing device with two-way pull wires and adjustable threshing clearance includes a tensioning mechanism, and several grid bars in clearance fit with side plates, wherein the tensioning mechanism is mounted on the several grid bars so that the grid bars can move in radial and tangential directions in the clearance; the tensioning mechanism includes a tangential tensioning device and a radial tensioning device, wherein the radial tensioning device is mounted in the radial direction of any one of the grid bars, so that the grid bars can move in the radial direction in the clearance; the tangential tensioning device is mounted in series in the tangential direction of the grid bars, so that the grid bars can move in the tangential direction in the clearance. Further disclosed is a combined harvester, which includes the threshing device with two-way pull wires and adjustable threshing clearance.

Abstract: A piston assembly for an internal combustion engine of a motor includes a piston head having an outer diameter surface spaced a first distance from the longitudinal axis and an annular surface spaced a second distance from the longitudinal axis, with the second distance being less than the first distance. Upper and lower walls extend between the annular surface and the outer diameter surface so as to define an annular groove in the outer diameter surface. A piston ring is received within the annular groove and includes an inner diameter surface facing the annular surface of the piston head. The inner diameter surface of the piston ring and the annular surface of the piston head cooperate with one another to define a plurality of pockets angularly spaced from one another about the longitudinal axis and configured to receive oil.

Abstract: An intelligent detection and recognition system and method for a coal-rock interface of a mine are provided. The intelligent detection and recognition system mainly includes an intelligent lifting support fastened to the top of a shearer, a non-contact radar antenna disposed at the top of the intelligent lifting support, and an operating terminal with which the radar antenna wirelessly conducts information transmission. In an operating state, a radiation direction of the radar antenna is perpendicular to the surface of a to-be-detected coal seam, and the operating terminal is configured to acquire radar data of the to-be-detected coal seam collected by the radar antenna, and draw and display a coal-rock horizon occurrence curve according to the radar data.

Abstract: This application discloses an inverter circuit for an inverter such as a photovoltaic inverter. Also disclosed are inverters and photovoltaic power systems including such inverter circuits. The inverter circuit is based on a HERIC topology, and in the inverter circuit a third capacitor and a fourth capacitor are bridge-connected between a bus and a first longitudinal bridge and between the bus and a second longitudinal bridge respectively. In this way, when the inverter circuit goes from a starting phase to a freewheeling phase, the third capacitor and the fourth capacitor can stabilize a voltage fluctuation caused by different turn-off speeds of the switching transistors in the HERIC topology, to prevent resonance caused by the voltage fluctuations.

Abstract: A device for conveying and feeding wet material for a cross-flow hot air combine harvester, the device consisting of a hot air pumping part and a material conveying part. The hot air pumping part uses an air suction pump (4) to pump a flow of hot waste air from an engine radiator (1) of the combine harvester by means of an air suction pipeline (3) so as to provide hot air flow for the material conveying and feeding device. The material conveying part consists of a chain harrow-type conveying groove structure (A) and a cross-flow air chamber structure (B), wherein the chain harrow-type conveying groove structure (A) is used for forcibly conveying and feeding a material; and the cross-flow air chamber structure (B) uses hot air to dry the material, blows to assist in feeding the material, and uses a cross-flow air wheel (14) to forcibly feed the material.

Abstract: Embodiments of the present description provide methods and apparatuses for detecting map calibration errors. In one aspect, a method includes: acquiring a map including at least one map element, determining at least one of feature information of the at least one map element or a navigation line according to the map, and determining whether a map element is calibrated wrongly according to the at least one of the feature information or the navigation line.