8results about How to "Solve detection difficulties" patented technology

The invention relates to the technical field of computer vision, and discloses an object detection and reconstruction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining an image sequence of an image source, carrying out the preprocessing, and dividing a preprocessed image into image combinations; training an initial object detection model based on the sample image combination, and adding a motion state prediction branch to the initial object detection model; detecting the image combination by using a target object detection model to obtain a detection result; and screening out a target detection result consistent with the object category and the motion state of the target object from the detection results of all image combinations representing the same target time, and performing reconstruction based on the target detection result to obtain a reconstruction coordinate. By adding a motion state prediction branch, the problem of difficult detection caused by smear of a high-speed moving object can be solved, the motion / static state can be accurately distinguished, and the detection accuracy and comprehensiveness are improved. And detection results are screened through time, categories and motion states, so that the reconstruction precision and efficiency are improved.

The invention belongs to the technical field of pharmaceutical analysis, and particularly relates to a method for detecting an isavuconazole sulfate enantiomer. According to the method, the to-be-detected sample isavuconazole sulfate and the enantiomer thereof are accelerated to be hydrolyzed and converted into isavuconazole and the enantiomer thereof under the catalytic action of enzyme, and the isavuconazole and the enantiomer thereof are separated and detected through liquid chromatography, so that the content of the isavuconazole sulfate enantiomer is detected. Further, the impurity content of enantiomers in the isavuconazole sulfate raw material medicine or the preparation thereof is controlled, and the quality controllability of the isavuconazole sulfate raw material medicine and the preparation thereof is ensured. The problem that the isavuconazole sulfate enantiomer is difficult to detect in the quality control of the isavuconazole sulfate raw material medicine and the preparation thereof is solved.

The invention belongs to the technical field of gas leakage detection, and particularly relates to a gas leakage detection device and a detection method thereof. The pipeline detection problem that three-way joints, flange joints and the like are difficult to detect is effectively solved. Comprising a body unit, the body unit comprises an installation main plate, and two sides of the installation main plate are respectively provided with a supporting unit which is used for supporting the detection device and can move on a to-be-detected pipeline. A buckling unit is arranged at the bottom of the mounting main board, the buckling unit comprises an upper combination body and a lower combination body, the upper combination body and the lower combination body are both of a shell-shaped structure and are detachably connected through a connecting piece, and a sealed cavity is formed after the upper combination body and the lower combination body are buckled and connected; a hole channel for a pipeline to pass through is formed in each of the two ends of the sealed cavity; during use, a to-be-detected pipeline is clamped between the upper combination body and the lower combination body, and the two ends of the to-be-detected pipeline penetrate out of the two hole channels respectively.

The application discloses a kind of for electron irradiation accelerator beam under gas environment monitoring and processing method, it is related to electron irradiation accelerator technical field, including the following steps: ozone generated by electron beam irradiation is through shielding body upper side ventilation system first gas collection port, is transported to shielding body outer exhaust duct by exhaust duct in shielding body, most of probe is excluded from beam under high-dose irradiation environment, ensure stable operation, while ozone concentration and smoke state of the probe can be detected in beam under irradiation space.The application combines the design structure of shielding body and gas drainage method, realizes the real-time monitoring of electron beam irradiation space environment gas.According to the structural characteristics of shielding body, the ventilation and beam under environment detection system are integrated, the beam under gas environment detection problem is solved, the service life is prolonged, the irradiation accelerator operation stability is improved, the humidity is monitored by humidity sensor and the air supply amount is adjusted, the real-time monitoring is realized, and the pollution of harmful gas to irradiation space environment is reduced.

The invention aims to provide a coil spring pitch detection device, which solves the problem that the natural state of the coil spring pitch is difficult to detect, and comprises a case, a driving assembly and a detection assembly, the driving assembly and the detection assembly are arranged on the case, a positioning head is used for fixing the inner end of a coil spring, and a motor outputs mechanical power through a driving rod, so that the coil spring pitch detection device can be used for detecting the coil spring pitch. The motor drives the driving rod to rotate, the rotating speed and the torque of the driving rod have rated values, when the driving rod drives the coil spring to contract, the torque of the driving rod changes, the coil spring drives the sliding plate to move, when the torque of the driving rod changes to a set range, the motor stops rotating, the sliding plate is static, and at the moment, the moving distance of the sliding plate is checked. If the distance reaches the set range, the coil spring pitch is qualified, and if the moving distance of the sliding plate is not within the set range, the coil spring pitch is unqualified, so that the problem that the natural state of the coil spring pitch is difficult to detect is solved.

The application discloses a method for semi-quantitative analysis of expression level of secreted protein of human joint cartilage cells by using immunoblotting technology. The method comprises the following steps: 1) preparing a secreted protein culture solution; 2) collecting a sample of the secreted protein culture solution; 3) performing dialysis desalting treatment on the sample; 4) concentrating the secreted protein culture solution to prepare a powder; 5) re-dissolving the secreted protein culture solution powder and quantifying the protein; 6) separating the protein components in the re-dissolved culture solution; and 7) detecting the expression level of the secreted protein in the re-dissolved culture solution sample by using immunoblotting method. The low-temperature dialysis and vacuum concentration technology can significantly improve the concentration of the secreted protein in the human joint cartilage tissue culture solution sample under the condition of maintaining the integrity of the protein structure, and is suitable for detecting the chemical fluorescence signal of the secreted protein in the sample by using the immunoblotting technology. The application provides an important cell reaction detection tool for studying the pathogenesis of bone and joint diseases caused by degenerative changes of cartilage tissue and researching and developing biological small-molecule drugs for treating the diseases.

The invention discloses a shaft current test structure and method for a double-shaft EMC (Electro Magnetic Compatibility) on-load test system, the method depends on a structure obtained by improving the double-shaft EMC on-load test system, a current probe is used for testing shaft current in a non-invasive manner, and the interference on the normal operation of the system is small; the problems that an existing shaft current testing method only focuses on shaft current testing of a motor, comprehensiveness and reliability are poor, and the requirement for shaft current testing of a double-shaft EMC on-load testing system is difficult to well meet are effectively solved. The influence of the magnitude of the shaft current on the EMC on-load test of the electric drive assembly is explored, and the correlation degree and the action mechanism between the shaft current and the electromagnetic compatibility are deeply analyzed and evaluated; in addition, shaft current testing can be carried out in no-load and loaded states, and background noise can be detected. A more comprehensive and accurate solution can be provided for the EMC loading test of the new energy automobile electric drive assembly, and the progress of the test technology in the related field can be promoted.