Abstract: Disclosed are a method, a device, an apparatus for capturing a non-cooperative target using a space robotic arm, and a non-transitory storage medium, and relates to the technical field of on-orbit servicing. The method is applied to a space robotic arm with a magnetic capture device as an end actuator. The method includes: establishing a magnetic attractive force model for the magnetic capture device, determining a magnetic attractive force characteristic of the magnetic capture device based on the magnetic attractive force model, determining a capture strategy for the non-cooperative target based on the magnetic attractive force characteristic of the magnetic capture device, capturing the non-cooperative target according to the capture strategy, and determining whether the non-cooperative target is captured based on a preset determination condition.

Abstract: Disclosed is a composition for inhibiting nitrate decomposition and its preparation method, which belongs to a field of photocatalytic technology, comprising: weighing titanium dioxide and pure phase metal carbonate or pure phase metal bicarbonate proportionally; adding the weighed pure phase metal carbonate or the pure phase metal bicarbonate to titanium dioxide for grinding to obtain a metal carbonate/bicarbonate-containing mixture. The method of inhibiting nitrate decomposition using the metal carbonate/bicarbonate of the present disclosure has a significant ability to inhibit nitrate decomposition, and the experimental results show that the method of inhibiting nitrate decomposition using the metal carbonate/bicarbonate can effectively inhibit the decomposition of the nitrate under irradiation for a long time.

Abstract: A testing system for measuring loss of soil particles with different particle sizes in a water inrush process includes: a vibration screening apparatus; a water collecting apparatus for collecting the mass of water and transmitting the water to a collecting and calculating apparatus; a conveying apparatus for conveying screened soil particles to a weighing apparatus; a weighing apparatus used for weighing the screened soil particles and transmitting the measured weight of the screened soil particles to the collecting and calculating apparatus; and a collecting and calculating apparatus used for controlling the operation of the testing system, inputting parameters and calculating data. The condition of particle loss in a simulated tunnel water inrush process can be automatically measured in real time, providing a basis for researching the influence caused by the particle sizes of fillings in the water inrush process of the tunnel to water inrush.