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Phonons play an important role in determining the electrical and thermal properties of semiconductors and other material systems. A mathematical model based on elastic continuum approach has been used for calculating the phonon dispersion of semiconductor cubic quantum dot. With this model acoustic phonon dispersions of an individual GaAs quantum dot are calculated for three different sizes to investigate...
This paper reports on a system that can save electricity. Many times we leave the room and hall without switching off lights and fans, thus electricity is wasted. In this work we have presented a system in which energy will be saved based on number of people entering in or leaving out of the room. If there is no person in the room, then light and fan will be switched OFF. On the other hand as soon...
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