Abstract: A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.

Abstract: A system for controlling low temperature injury of cold-sensitive fruit vegetables by combining intelligent pre-cooling and segmented controlled atmosphere storage includes a sensor detection module, a data collection module, a wireless communications module, a terminal, and a control system, where the sensor detection module detects carbon dioxide, ethylene, and the temperature and the humidity within a fresh keeping chamber, then data is collected by using the data collection module connected to the sensor detection module, and then varying data is transmitted to the terminal by using the wireless communications module connected to the data collection module; the sensor detection module is connected to the control system; and after the terminal reads data detected by a sensor, an environment parameter is controlled by using the control system.

Abstract: A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.

Abstract: A rapid joint detection device and detection method for deterioration degree of fried oil belongs to the technical field of rapid detection of food quality and safety. The acid value and the peroxide value of the fried oil are used as major indexes for measuring the deterioration degree of the fried oil to make a micro-thin layer chromatography test paper strip that can develop colors according to different deterioration degrees of the fried oil; through the color development analysis of the test paper strip, and in combination with the dielectric constant value of the fried oil, the color difference value of developed colors of the test paper strip color is converted into the data of the acid value and the peroxide value data of the fried oil.

Abstract: A system for controlling low temperature injury of cold-sensitive fruit vegetables by combining intelligent pre-cooling and segmented controlled atmosphere storage includes a sensor detection module, a data collection module, a wireless communications module, a terminal, and a control system, where the sensor detection module detects carbon dioxide, ethylene, and the temperature and the humidity within a fresh keeping chamber, then data is collected by using the data collection module connected to the sensor detection module, and then varying data is transmitted to the terminal by using the wireless communications module connected to the data collection module; the sensor detection module is connected to the control system; and after the terminal reads data detected by a sensor, an environment parameter is controlled by using the control system.