Ruiyu YinProfessor Ruiyu Yin graduated from University of Science & Technology Beijing in 1957, and has more than 50 year experiences on metallurgical engineering. He worked for National Bureau of Metallurgical Engineering of China as an engineer, researcher,manager and vice-minister for a long time. Since 1990's, he paid his efforts to the popularization of key iron making and steelmaking technologies in China, such as continuous casting, PCI, technology for the elongation of BF campaigns, continuous rolling of long products, slag splashing and comprehensive energy savings by means of structure optimizing of production process. He proposed three functions of steel plants: steel product manufacturing, high efficient energy transformation and recycling of industrial wastes. Since the year of 2000, he plays an important role in designing and establishment of new generation steel manufacturing processes. He also engaged in the study of engineering philosophy and published 3 books, Metallurgical Process Engineering, Philosophy of Engineering and Theory of Engineering Evolution. Read More Read Less