Harbin Engineering University

About: Harbin Engineering University is a education organization based out in Harbin, Heilongjiang, China. It is known for research contribution in the topics: Control theory & Microstructure. The organization has 31149 authors who have published 27940 publications receiving 276787 citations. The organization is also known as: HEU.

How China became a leader in solar PV : An innovation system analysis

Abstract: In this paper we focus on understanding the rapid rise of the Chinese PV industry and its profound impact on the global PV industry. We investigate how it is possible that a nation that is still focusing on catching up in terms of industry, innovation and technology has been able to bring manufacturers from leading industrialized nations to their knees. This paper applies the framework of the Technological Innovation System (TIS), and also takes the context into account, in terms of the Chinese national innovation system (NIS) and the global PV TIS. It concludes that the rise of the Chinese PV TIS can be explained by the interaction of three context factors (the change in Chinese institutions, technology transfer, and the large European market) and specific PV TIS dynamics. The study empirically shows the importance of extending the national TIS studies by including the influences of context factors.

Control strategy analysis of the hydraulic hybrid excavator

Abstract: Applying the electric hybrid technique on the off-road vehicle is one popular method to reduce the fuel consumption. However, the high cost, low energy conversion efficiency and disposal of used batteries are still the main problems. This paper is focusing on one alternative choice which is hydraulic hybrid off-road vehicles. Among the most typical off-road vehicles, the excavator is chosen as the prototype to study the control strategy. First, the basic principle of the hydraulic hybrid excavator based on Common Pressure Rail is introduced. Then, the mathematical model of the whole excavator is created. Moreover, the dynamic programming algorithm is used to solve the optimal control variable trajectory under a given circle. Finally, the adjustable single point under quasi constant pressure strategy is presented. The simulation result shows that the proposed strategy can reduce the fuel consumption clearly without deteriorating the performance.

Approaching the Downsizing Limit of Silicon for Surface‐Controlled Lithium Storage

Abstract: Graphene-sheet-supported uniform ultrasmall (≈3 nm) silicon quantum dots are successfully synthesized using a simple and effective self-assembly strategy. They exhibit unprecedented fast, surface-controlled lithium-storage behavior and outstanding lithium-storage properties including extraordinary rate capability and remarkable cycling stability, attributable to the intrinsic role of approaching the downsizing limit of silicon. (Chemical Equation Presented).