Cao M.,Shanghai JiaoTong University |
Cao M.,Shanghai Open University |
Chen S.-L.,Shanghai JiaoTong University
Tumu Jianzhu yu Huanjing Gongcheng/Journal of Civil, Architectural and Environmental Engineering | Year: 2012
Based on the technique proposed by Muki & Sternberg, a rigorous analytical method for calculating the interaction factor between two piles with different lengths, diameters and properties is presented. The pile group in layered soils is calculated by using the principle of superposition. The validity of the presented method has been verified through comparing with those from other existing solutions. A parametric analysis is made to study the pile group settlement and the loads shared by the individual pile. The proposed interaction factors of pile-pile can consider the strengthening effect of intervening piles. The proposed method can be used to analyze the large pile group.
Jiang B.,East China Normal University |
Gu X.,East China Normal University |
Xiao J.,Shanghai Open University
International Journal of Mobile Learning and Organisation | Year: 2015
Recently, lifelong learning and u-learning are significant concepts in the area of technology-enhanced learning. They have actually changed learning. This paper begins with an overview of u-learning and lifelong learning. And then, it reviews China's national policies on lifelong learning. National policies could influence the development of lifelong learning and decide the key points of building learning society. By means of Keller's Attention, Relevance, Confidence, Satisfaction (ARCS) model, this paper proposed lifelong learning motivation strategies, and finally analyses Shanghai Lifelong Learning Network as the practice case. Copyright © 2015 Inderscience Enterprises Ltd.
Wang G.-F.,Shanghai Open University |
Wang G.-F.,Shanghai University of Finance and Economics
5th International Conference on Logistics and Supply Chain Management 2015 | Year: 2015
The financial agglomeration and FDI technology spillover which effect on Chinese regional upgrading of industrial structure are discussed in the paper, It is proved from the empirical point of view that the regional innovation and regional economic growth are promoted through the deepening of financial function and the FDI spill over effect. If the degree of FDI spillover in a region is high, financial agglomeration characteristic is obvious, the regional industrial structure optimization and upgrading is faster. It shows that there is consistency between financial agglomeration trend change and regional economic disparities and proves that the industrial structure optimization and financial agglomeration, FDI technology spillover, undertake international investment transfer has a strong positive correlation though the empirical analysis on Chinese 31 provinces financial aggregation, FDI technology spillover and the adjustment of regional industrial structure. The financial agglomeration, scale of investment, technology innovation spillover have obvious role for the upgrading of industrial structure.
Qu K.,Shanghai University of Electric Power |
Niu Q.,Shanghai University of Electric Power |
Li J.,Shanghai Open University
Conference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012 | Year: 2012
The direct-drive permanent-magnet synchronous generator (PMSG) system with full converter can achieve wind maximum power point tracking (MPPT) in a wide range of wind-speed. The characteristics of PMSG are investigated first, and then the vector control method and a MPPT strategy based on hill-climbing method for PMSG are presented. Simulation results show that the controllers can extract maximum wind power in good dynamic performance. © 2012 IEEE.
Cao M.,Shanghai Open University
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2013
The reasons of the work noise and high labor intensity of operators are found through the analysis of periodic motion of the original frog-hammer for soft ground treatment. The electromotor drives a pair of eccentric blocks for the opposite direction rotation with equal angular velocity, which generates counteract horizontal centrifugal forces, so that the noise at work and labor intensity of workers are reduced. In addition, the flexibility of walking is improved with the installation of rollers in the chassis. The present transformation has features of simple structure, easy manufacture, and good application prospects for construction machinery.