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LOD (Levels of Details) is a technology often applied in real-time photo realistic, which reduces the complexity of scene preferably. At the same time, the distortion is lessened and the request of real time is met. A frequency used algorithm of LOD in lots of literatures is based on quad tree. This paper discusses the development of LOD technology, introduces LOD algorithm based on quad-tree, and...
From the point of the perspective of train control strategies, energy saving for high-speed railway will be explored in this paper. The energy consumption of high-speed railway is mainly used for train operation, accounting for about 87%. This paper definitely presents a particle swarm algorithm to compute the energy consumption, which aims to reduce the railway energy by obtaining optimal train control...
A kinetic study on soybean oil transesterification without a catalyst in subcritical and supercritical methanol was made at pressures between 8.7 and 36 MPa. It was found that the conversion of soybean oil into the corresponding methyl esters was enhanced considerably in the supercritical methanol. The apparent activation energies of the transesterification are different with the subcritical and the...
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