The effective control of heat transfer is of great significance to improve energy efficiency. Thermal diode is one of the key elements for heat flow controlling. Similar to the current rectification effect of electronic diodes, heat flow is easily directed through one direction in a thermal diode, while obstructed in the opposite direction. Sizable heat rectification can be obtained using a junction of two solid materials with opposite trends in thermal conductivity as a function of temperature. This type of thermal diodes is attractive due to their scalability and analogy to electrical diode design.
A HFIPS-led project has developed a monitoring system to ensure communication and operation safety in railway section by sending early warning using fiber detection technology.
Singing, dancing, laughing, you would find yourself back to youth again if you were here on science island on July. 24 for the closing ceremony of the 8th summer camp of HFIPS. Students were enjoying the last night on Science island.
Selective catalytic hydrogenation of nitrobenzene (Ph-NO2) to high value-added azoxy-, azo- and aminobenzene compounds are considerably important in the organic synthesis industry. Compared with traditional thermocatalytic processes, the electrocatalysis technique has aroused great research attention, owing to its high hydrogenation efficiency, ambient operating conditions. Unfortunately, the relevant selective hydrogenation mechanisms are unclear in the reported works.
In an experiment conducted in 2016, a saturated long-lived helical mode (LLMs) has been observed for the first time in EAST hybrid plasmas achieved with neutral beam injection (NBI). The long-lived helical mode is found to play an important role in achieving steady state high performance plasma.