In laboratory the CO2 hydrate was synthesized by simulation experiment and its nucleation process was analyzed by electrical resistance variation,based on which a primarily theoretical nucleation model was set up.

This article introduces the application methods and characteristics of Edison emulational software, and illustrates the feasibilities of its application in middle school s electrics experiments and finds the relative problems need being noticed in the practical application by combining with idiographic examples.

Fortunately, the applications of electrical and electrochemical techniques to concrete durability becomes more and more attractive.

Several electricity problems are analyzed by use of Lagrange multiplier method, and some meaningful results are obtained.

The Students Textbook of Electricity,which was translated into Chinese in the late Qing period,was the first full-scale and systemic book as we know intending to introduce the history and actuality of western electromagnetism.