4results about How to "High technology maturity" patented technology

A nuclear-grade radiation-resistant infrared video monitoring system belongs to the technical field of nuclear facility safety monitoring, and comprises a radiation-resistant infrared camera used for collecting infrared video data in a strong nuclear radiation environment; the image processing unit is used for performing enhancement processing on the infrared video data, removing non-uniform fixed mode noise caused by radiation and obtaining an enhanced video image; and the intelligent analysis and prediction unit is used for carrying out quantitative identification on the enhanced video image, obtaining pipeline defects in the video image and carrying out risk prediction. The problems that no available infrared monitoring equipment exists in a radiation area of an existing nuclear facility, the existing nuclear facility depends on an imported visible light camera (the problems of short service life, sensitivity to temperature, poor image quality and the like), and the existing nuclear facility lacks intelligent early warning capability are solved.

This invention discloses a Simulink compiler testing method based on reinforcement learning to achieve configuration diversification, comprising: initial information acquisition; configuration update; feature vectorization component to implement feature representation of CPS model, i.e., representing CPS model for diversity measurement; using reinforcement learning to compare the feature vectors between the new CPS model and the previously generated CPS model, and through comparison, using reinforcement learning to learn the reward brought by updating the configuration, i.e., learning the configuration to generate different CPS models; recommending configurations using the knowledge learned by reinforcement learning; generating new CPS models according to the new configuration, thereby generating diverse CPS models to fully test the Simulink compiler; using differential testing to compare the execution trajectory of CPS model in different simulation modes, if the execution trajectory is the same, the error information is recorded to complete the testing process of the CPS model, if there is a difference, the difference information is recorded and identified as a bug discovery.

The application discloses a kind of pyricularia oryzae antagonistic streptomyces fermentation preparation, preparation method and application, belong to microbial fermentation and biological pesticide field, which comprises the following steps: screening the inhibitory rate of more than 80% of pyricularia oryzae starting strain of streptomyces, ribosome engineering is reformed by rpsL gene K88E directional point mutation, the value is greater than 5000 ug / mL in the optimized fermentation medium of carbon-nitrogen ratio 25:1~30:1, corn syrup 0.5%~1% culture makes potency, and the preparation of suspension preparation containing viable bacteria and metabolites is prepared by suspending liquid and supernatant concentrate compound, and the comprehensive prevention and cure effect of the preparation in field reaches more than 75%, which can replace chemical pesticide.

This invention discloses a jet-based rotor flow control system and method, relating to the field of helicopter aerodynamics. It includes an engine bleed air inlet, an air filter, a one-way valve, a high-pressure air source chamber, a pressure reducing valve, and a proportional valve, connected sequentially via pipes. The proportional valve is connected to a pressure damper and an air supply slip ring via pipes. The proportional valve is electrically connected to a power supply and a signal generator. The stator of the air supply slip ring is fixed to the helicopter fuselage, and the rotor of the air supply slip ring is connected to a hollow rotor shaft. The outlet of the rotor of the air supply slip ring is connected to an air supply pipe. An internal air pipe communicating with the air supply pipe is arranged inside the rotor blade. Multiple jet outlets are distributed on the upper wing face of the rotor blade. The aerodynamic excitation generated by this invention has advantages such as high strength, simple structure, and minimal impact on the original aerodynamic profile, showing significant advantages and application potential in rotor retreat blade stall separation control.