Abstract: The present disclosure provides a heat transfer limit experimental device of a high-temperature heat pipe equipped with a convenient temperature measurement box and a method based on the heat transfer limit experimental device. The heat transfer limit experimental device includes a high-temperature heat pipe, an electric heating system, a convenient temperature measurement box, a control system, a gas-cooled heat exchange system, and a data acquisition system. The electric heating system is connected to the high-temperature heat pipe. The convenient temperature measurement box is connected to the gas-cooled heat exchange system. The data acquisition system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system. The control system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system.

Abstract: The online detection system for type identification and activity measurement of radiations in gas or liquid is provided, which can capture the light signals generated by different radiations in real time, and convert the light signals into the electrical signals, so as to realize the online type identification and activity measurement of the radiations based on the waveforms and the time information of the electrical signals of the different radiations. In addition, based on the characteristic that different radiations have different penetration capabilities, the inner-outer two-layer activity measurement structure is designed, which can discriminate the radiations with the same waveform. Therefore, the present disclosure simplifies the radiation activity measurement process, thereby greatly improving the efficiency of the radiation activity measurement.

Abstract: An electronic device is provided, the electronic device includes a primary device assembly and an extension assembly. The primary device assembly includes a first housing and a primary body circuit, the first housing has a first accommodation cavity, and the primary body circuit is disposed in the first accommodation cavity. The extension assembly includes a second housing and an extension circuit. The second housing has a second accommodation cavity, the extension circuit is disposed in the second accommodation cavity, and the extension circuit is signal-connected to the primary body circuit, to extend or enhance functionality of the primary device assembly.