Bøger af Jun Li

PEM Water Electrolysis: Fundamentals and Practice is a comprehensive reference on the design and operation of PEM water electrolyzers. Combining hydrogen production with engineering thermophysics, the book provides a unique resource for understanding the hydrogen production process, from fundamental concepts to practical implementation. Divided into four parts, the book covers the current state of hydrogen and the fundamentals of PEM water electrolysis and the various components and materials used in PEM electrolysis, including electrocatalysts, proton exchange membranes, membrane electrode assembly, porous transport layer, flow field, and corrosion, and more. Other sections explain the key processes involved in PEM electrolysis, such as two-phase flow, heat and mass transfer and delve into systems research, covering grid fluctuations, control systems, assembly, diagnosis, and commercialization. In addition, the book provides comprehensive information on the modeling of PEM electrolyzers, including heat and mass transfer and system analysis. Finally, the book contains informative videos of industrial facilities, laboratory setups, and preparation procedures.

Entrepreneurship in China attempts to deal with the unanswered queries as well as provide an insightful and updated understanding of entrepreneurship development in China.

This book provides a fresh interpretation of how Chinese civilization was created and transformed in the process of its early formation (1766-221 BC). It describes the principal features of that civilization which had a profound impact on the later development of Chinese history. In particular, it discusses in detail the main characteristics of the social and political organizations of that period, and argues that, contrary to the traditional interpretation, economic development in ancient China had its own dynamism.

This book is for everyone interested in who we are and where we came from. Accessibly written, it presents the evidence from which the complex and tangled story of human evolution is reconstructed, and the techniques by which that evidence is interpreted.

It mainly covers four advanced simulation methods based on the Boltzmann equation (i.e., direct simulation Monte Carlo method, direct simulation BGK method, discrete velocity method, and lattice Boltzmann method) and their applications with detailed results.

The 12 portraits in the next section are of three comprehensive universities, three education-related universities, three science and technology universities, and three newly emerging private universities.

This book provides a fresh interpretation of how Chinese civilization was created and transformed in the process of its early formation (1766-221 BC).

An analysis of the financing of China's rural enterprises over the past two decades. Dicusses key aspects of rural enterprise development in China, including the role of state policy, rural financial institutions and local government.

The 12 portraits in the next section are of three comprehensive universities, three education-related universities, three science and technology universities, and three newly emerging private universities.

The school-to-work transition has been an important topic in the fields of education and sociology research in the past few years. With a strong comparative nature, the author presents this systematic investigation of the pre-vocational education in Germany and China and analyzes their curricula of pre-vocational education.