On April 15, 2023, the CPLDM "TANWEI Seminar(Issue 6, 2023) " officially opened. The keynote speaker of this issue is Wu Yunrou. The topic is the basic principles of SEM and the relevant content of data processing, respectively, from the structure of SEM, basic principles of SEM, sample preparation and requirements, precautions during testing, application of SEM, and how to post-process data.
