Abstract: The present application discloses a method for rapidly identifying the resistance of wheat to black point disease caused by Bipolaris sorokiniana, where testing takes places in an indoor, controlled environment. The test method includes surface sterilization of wheat seeds, and cultivating wheat seedlings from the sterilized wheat seeds; preparing conidial suspension of Bipolaris sorokiniana, and spraying the conidial suspension on the seedlings at one-leaf-one-shoot stage; recording the percentage of the diseased leaf area in total leaf area of the first leaf of the wheat seedling on the 10th day of inoculation; calculating the black point incidence of the wheat according to an equation, and then evaluating the resistance of wheat to black point disease caused by Bipolaris sorokiniana through the black point incidence.

Abstract: A high-pressure gas cylinder valve for vehicle includes a valve seat having a gas charging runner and a gas supplying runner. A check valve is connected in series onto the gas charging runner, and the check valve and a solenoid valve are connected in series sequentially onto the gas supplying runner in a gas flow direction. A portion of the gas supplying runner located downstream of the solenoid valve is jointly connected to a portion of the gas charging runner adjacent to a gas inlet end and supplies gas to outside through a gas inlet of the gas charging runner when the gas supplying runner supplies gas. The gas cylinder valve further includes a flow-blocking buffer structure connected in series onto the gas supplying runner and located downstream of the solenoid valve and upstream of an intersection of the gas supplying runner and the gas charging runner.

Abstract: A solenoid valve and a vehicle gas cylinder valve having the solenoid valve are provided. The solenoid valve includes a casing, a pilot head, a main valve seat, and a pilot valve core. An outer peripheral surface of the casing is provided with a clearance fit surface, and the clearance fit surface is configured for clearance fit with a solenoid valve installation passage to form a bypass gas passage between the casing and the solenoid valve installation passage. The casing is provided with an upper casing ventilation hole and a lower casing ventilation hole. The upper casing ventilation hole communicates with an upper portion of the bypass gas passage and a pilot head upper chamber, and the lower casing ventilation hole communicates with a lower portion of the bypass gas passage and a pilot head lower chamber.

Abstract: A method and device for data storage are provided. The method includes determining, based on a write message corresponding to a first file, an application corresponding to the first file, a file type of the first file, and first attribute information corresponding to the file type, the first attribute information corresponding to the file type obtained based on second attribute information corresponding to all files of the file type on which the write operation processing have been performed in response to the respective write messages of the application, predicting a stream identification information corresponding to the first file by using a file classifier based on the application corresponding to the first file, the file type of the first file and the first attribute information corresponding to the file type, and sending a writing command carrying the stream identification information to a storage device.

Abstract: A high-pressure gas cylinder valve for vehicle includes a valve seat having a gas charging runner and a gas supplying runner. A check valve is connected in series onto the gas charging runner, and the check valve and a solenoid valve are connected in series sequentially onto the gas supplying runner in a gas flow direction. A portion of the gas supplying runner located downstream of the solenoid valve is jointly connected to a portion of the gas charging runner adjacent to a gas inlet end and supplies gas to outside through a gas inlet of the gas charging runner when the gas supplying runner supplies gas. The gas cylinder valve further includes a flow-blocking buffer structure connected in series onto the gas supplying runner and located downstream of the solenoid valve and upstream of an intersection of the gas supplying runner and the gas charging runner.

Abstract: The present disclosure provides a method, apparatus and system for identifying target objects. The method includes: clipping out a target image from an acquired image, wherein the target image involves a plurality of target objects to be identified that are stacked; adjusting a height of the target image to a preset height, wherein a height direction of the target image corresponds to a direction in which the plurality of target objects are stacked; extracting a feature map of the adjusted target image; segmenting the feature map in a dimension corresponding to the height direction of the target image to obtain a preset number of segment features; and identifying the target objects based on each of the preset number of segment features.

Abstract: Provided are a stacked object recognition method, apparatus and device, and a computer storage medium. The method includes that: an image to be recognized is acquired, the image to be recognized including an object sequence formed by stacking at least one object; edge detection and semantic segmentation are performed on the object sequence based on the image to be recognized to determine an edge segmentation image of the object sequence and a semantic segmentation image of the object sequence, the edge segmentation image including edge information of each object of the object sequence and each pixel in the semantic segmentation image representing a class of the object to which the pixel belongs; and the class of each object in the object sequence is determined based on the edge segmentation image and the semantic segmentation image.

Abstract: A sensor assembly, a force detection device and method, and construction machinery, the sensor assembly comprising a connecting part used for connecting a base to be tested and a bearing part used for bearing, the bearing part being connected to the connecting part, the bearing part comprising at least two sensing units with different measuring ranges, and the at least two sensing units being arranged to have a different initial gap (b1, b2) from the connecting part, so that corresponding initial gap (b1, b2) are eliminated when a load applied to the bearing part reaches different extents. The different initial gaps (b1, b2) are eliminated by means of the load reaching a different extent, so that the sensing units with different measuring ranges can provide detection feedback in the respective working conditions in which the units have the highest measurement precision and thereby ensure the accuracy of detection results.

Abstract: Semiconductor structure and its fabrication method are provided. The method includes providing a substrate, where the substrate includes a first region having a first metal structure and a second region having a second metal structure; forming a device layer on each of top surfaces of the substrate, the first metal structure and the second metal structure; forming a first through hole in the device layer at the first region, where the first through hole exposes at least a portion of surfaces of the first metal structure, and forming a second through hole in the device layer at the second region, where the second through hole passes through the first device and exposes at least a portion of surfaces of the second metal structure; and using a selective metal growth process, forming a first plug in the first through hole and forming a second plug in the second through hole.

Abstract: Provided are a matching method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: obtaining a to-be-matched image; extracting at least one to-be-matched feature point from the to-be-matched image; for one of at least one reference image, performing matching between the at least one to-be-matched feature point and at least one reference feature point extracted from the reference image to obtain a distance set corresponding to the reference image, the distance set corresponding to the reference image being a distance set composed of distances between the at least one to-be-matched feature point and the at least one reference feature point, the one reference image including an image of a standard sample, and different reference images including different standard samples; and determining, based on the distance set corresponding to each reference image, whether the to-be-matched image matches each reference image.

Abstract: Embodiments of the present disclosure disclose an image processing method and apparatus, and an electronic device. The method includes: obtaining a key frame image that includes a target object, and obtaining a to-be-processed frame image that includes the target object; extracting a feature point in the key frame image and a feature point in the to-be-processed frame image, respectively; determining a matching relationship between each feature point in the key frame image and each feature point in the to-be-processed frame image; determining a transformation relationship based on the feature point in the key frame image and a feature point in the to-be-processed frame image that matches the feature point in the key frame image; and processing the to-be-processed frame image based on the transformation relationship to obtain a target frame image.

Abstract: The present disclosure discloses a multi-degree-of-freedom driving arm and a dual-arm robot using the arm, the multi-degree-of-freedom driving arm comprises a single-degree-of-freedom driving module and a plurality of dual-degree-of-freedom driving modules, and the single-degree-of-freedom driving module and the dual-degree-of-freedom driving module located at the innermost side are coupled to each other; the dual-degree-of-freedom driving module has two orthogonal rotational degrees of freedom, and comprises a first driving mechanism that is configured to drive the dual-degree-of-freedom driving module to rotate in the first rotational degree of freedom, and a second driving mechanism that is configured to drive the dual-degree-of-freedom driving module to rotate in the second rotational degree of freedom; the first driving mechanism of the dual-degree-of-freedom driving module located on outer side is disposed on the second driving mechanism of the dual-degree-of-freedom driving module adjacent thereto and

Abstract: Disclosed are a gesture recognition method and apparatus, an electronic device, and a storage medium. The method includes: obtaining a hand detection result by detecting a to-be-processed image; in response to the hand detection result including a bounding box of hand, determining that a hand pose in the bounding box of hand conforms to a hand pose in a target gesture; determining that the hand is located in a pre-defined area of the to-be-processed image; and determining that the hand makes the target gesture.

Abstract: Embodiments of the present disclosure provide methods and apparatuses for obtaining sample images, and electronic devices. The method includes: acquiring images of stacked bodies, where the stacked bodies in different images have different item information, and the item information comprises: an attribute and a stacking mode of a stacked body; and taking an acquired image as a sample image when the acquired image meets an image quality condition.

Abstract: Embodiments of the present specification provide a target recognition method, apparatus, and system. The method comprises: obtaining an image recognition result and a radio frequency recognition result of target objects in a target region, and then determining the distribution of the target objects in the target region according to the radio frequency recognition result and the image recognition result. Since the radio frequency recognition result and the image recognition result are fused, the target objects in the target region can be accurately recognized, so as to improve the recognition accuracy.

Abstract: Disclosed are a target tracking method and apparatus, an electronic device, and a storage medium. The method includes: detecting a to-be-processed image to obtain a hand detection result; in response to the hand detection result including a bounding box of hand, determining a hand in the bounding box with a hand pose conforming to a hand pose in a target gesture as a target hand; and tracking the target hand in a video stream according to the target hand in the to-be-processed image, where images in the video stream and the to-be-processed image are obtained by capturing a same target area, and the images in the video stream are captured after the to-be-processed image is captured.

Abstract: The present disclosure provides a method, apparatus and system for identifying target objects. The method includes: clipping out a target image from an acquired image, wherein the target image involves a plurality of target objects to be identified that are stacked; adjusting a height of the target image to a preset height, wherein a height direction of the target image corresponds to a direction in which the plurality of target objects are stacked; extracting a feature map of the adjusted target image; segmenting the feature map in a dimension corresponding to the height direction of the target image to obtain a preset number of segment features; and identifying the target objects based on each of the preset number of segment features.

Abstract: The present application discloses a method for rapidly identifying the resistance of wheat to black point disease caused by Bipolaris sorokiniana, where testing takes places in an indoor, controlled environment. The test method includes surface sterilization of wheat seeds, and cultivating wheat seedlings from the sterilized wheat seeds; preparing conidial suspension of Bipolaris sorokiniana, and spraying the conidial suspension on the seedlings at one-leaf-one-shoot stage; recording the percentage of the diseased leaf area in total leaf area of the first leaf of the wheat seedling on the 10th day of inoculation; calculating the black point incidence of the wheat according to an equation, and then evaluating the resistance of wheat to black point disease caused by Bipolaris sorokiniana through the black point incidence.

Abstract: Provided are a matching method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: obtaining a to-be-matched image; extracting at least one to-be-matched feature point from the to-be-matched image; for one of at least one reference image, performing matching between the at least one to-be-matched feature point and at least one reference feature point extracted from the reference image to obtain a distance set corresponding to the reference image, the distance set corresponding to the reference image being a distance set composed of distances between the at least one to-be-matched feature point and the at least one reference feature point, the one reference image including an image of a standard sample, and different reference images including different standard samples; and determining, based on the distance set corresponding to each reference image, whether the to-be-matched image matches each reference image.