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Fluctuations in wind power in geographically distributed areas are typically complementary, and therefore a coordinated multi-area dynamic economic dispatch may enable greater wind power penetration in interconnected power systems. Here we describe a decentralized approach based on a modified generalized Benders decomposition in which locally optimal cost function of each area is introduced. The technique...
The purpose of this paper is to compare the ability of solder joint with different shape (hourglass-shaped, barrel-shaped and cylinder-shaped) to resist destruction under drop impact loadings. Three 3D finite element models of VFBGA (very-thin-profile fine-pitch BGA) packages, including different shape of solder joints, are established respectively. According to the condition B in the drop test standard...
Virtual reality is now very popular in the field of computer science, while building the virtual environment and interacting with it harmoniously is more popular. In this paper, we describe a generic VR engine, then building the virtual environment, rendering and navigation can be implemented based on the engine, thus users can develop different kinds of VR software. We introduced the engine from...
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