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An effective way to learn computer programming is to sit side-by-side in front of the same computer with a tutor or peer, write code together, and then discuss what happens as the code executes. To bring this kind of in-person interaction to an online setting, we have developed Codechella, a multi-user Web-based program visualization system that enables multiple people to collaboratively write code...
In this paper, the thermal field of a large scale permanent magnet embedded salient pole wind generator (PMESPWG) is investigated by using the computational fluid dynamic (CFD) modeling. To reduce the calculation, only one quarter model of the PMESPWG is established according to its symmetry. Based on the electromagnetic analysis and the empirical equations, the copper loss, stator iron loss and rotor...
Graphene has emerged as one of the most promising materials to address scaling challenges in the post silicon era. A simple model for graphene nanoribbon field-effect transistors (GNRFETs) is developed for treating the effects of edge bond relaxation, the third nearest neighbor interaction, and edge scattering, all of which are pronounced in GNRFETs, but not in carbon nanotube FETs.
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