Instructors/Speakers Prof. Xiongbin PENG Assistant Professor Department of Mechatronics Engineering Shantou University China Abstract Large scale reflecting telescope is a technology-intensive equipment in many fields such as national security, space detection, universe exploration. They are usually equipped with large diameter primary mirrors, which guarantee them with stronger light gathering power and high resolution, to explore instant galaxies from hunderds of millions of light year away. In this context, this talk will firstly introduce the difficulties when designing a hydraulic support system for large scale primary mirrors. Secondly, the supporting stiffness of a hydraulic support system is analyzed. Thirdly, the methodology for the precise position control of a support system shall be discussed. Finally, the future directions with critical research areas ...
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Instructors/Speakers Prof. Akhil GARG Associate Professor Department of Mechatronics Engineering Shantou University China Abstract In the recent years, Energy storage systems such as battery packs/fuel cells used in Electric vehicles (EVs) has been extensively promoted in developing economies where the environmental burden due to extensive production exists. In this context, this talk will firstly introduce the four main research problems undertaken. The development of evolutionary algorithms with applications in fuel cells is illustrated. Secondly, the experimental methodology of using mechanical parameter such as the stack stress to estimate the state of health of battery shall be discussed. The methodology for solving the design optimization problem of battery pack enclosure shall be discussed. Biography Dr. Akhil Garg is currently working as ... |
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Instructors/Speakers Prof. Bin SHENG Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai China Abstract Realistic hair simulation is essential in many fields such as Computer Graphics and Virtual Reality. Currently, many models have successfully made progress in high-quality hair simulation. However, the computation cost of these models is very high and is not suite for realtime simulation and rendering. In order to simulate realistic hair in a very short time, we introduced a data-driven reduced hair model solution. Our approach captured a small set of guide hair and the corresponding interpolation relationship using a list of precomputed full simulation hair movement sequences. In simulation step, we only simulated the guide hair with a mass-spring model and interpolated ... |
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Instructors/Speakers Prof. Yongjin WANG Professor School of Business Nankai University China Abstract In this talk, we begin with the Ito & McKean's construction of Skew B.M. (via the Brownian excursions), and introduce a class of the so-called Skew diffusion processes. Specifically, our considerations are limited on the Skew O-U processes and the Skew Feller-branching processes (the latter are also called Skew CIR processes). For those two processes we first give the explicit expressions on the transition densities, in term of classical Special Functions. Next we study the hitting times of the processes up (or down) crossing some given levels, and we obtained the Laplace Transforms expressions of those random stopping times. These results are fundamental for the quantitative analysis of ... |
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Instructors/Speakers Prof. Anil Misra Professor Department of Civil, Environmental and Architectural Engineering The University of Kansas, Lawrence, Kansas, U.S.A. Abstract Granular materials take a variety of forms, spanning the spectrum from highly consolidated dense solids formed of particulate precursors to confined packing of non-cohesive particles. In all their forms, these materials are characterized by complex structures and compositions. More importantly, they share the common trait that their behavior at the macro-scale, that contains large numbers of grains (>106), is profoundly affected by the grain-scale interactions. For many important problems in engineering and science, continuum description of their mechanical behavior is desired. Discrete atomic or coarse-grained models often pose insurmountable challenges. Granular micromechanics method is a practical approach for continuum modeling ... |
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