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The compliant mechanisms are highly coupled and extremely nonlinear systems, where the dynamic model is generally used for the control of the system. This paper focuses on dynamic modeling of curve-type fully compliant mechanism, by taking the J-type bionic foot as an example. Based on the pseudo-rigid-body model and the Dynamic Nominal Mechanism (DNM) method, the dynamics model of the equivalent...
Spatial distribution of research activities in geo-sciences is related not only to the distribution of authors but also to the distribution of research area. In the present work we developed a tool to analyze spatial distribution of science research activities based on toponym resolution in text of scientific papers. The idea is to identify and annotate toponym referred in research papers automatically,...
Somatic embryos were induced from cotyledon explants cultured on MS medium supplemented with 1.0 mg·L−1 2,4-D. Morphological and protein changes were performed aiming at the developmental process of somatic embryogenesis of E. sativa. The observation revealed that the embryos pass through the characteristic globular, heart, torpedo, and cotyledon stages. The developmental process of the somatic embryo...
China education-economy system is typical complex system. Both traditional region economic theory and complex social economic theory were used to analyze it. The econometric equation of system constituents' interactions was built based on the Cobb-Douglas production function. The integrated system model was built according to system dynamics. The simulation indicates that China education-economy system...
China education-economy system was analyzed by traditional region economic theory and complex social economic theory. The econometric equation of system elements interaction was built based on the Cobb-Douglas production function. The simulation model of China education-economy system was built by combining econometrics and system dynamics methods. The comparison with historical data proved the correctness...
In the transaction process, the effective negotiation may cause more profits. In B2C and C2C, sellers only can use the fixed price or auction because they have no time and energy to bargain with buyers who are random on time and quantity, which reduces the benefits and successful transaction rate. This article established a negotiation model to solve this problem. This model conforms to the general...
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