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Theoretical/computational description of excited state molecular dynamics is nowadays a crucial tool for understanding light‐matter interactions in many materials. Here we present an open‐source Python‐based nonadiabatic molecular dynamics program package, namely PyUNIxMD, to deal with mixed quantum‐classical dynamics for correlated electron‐nuclear propagation. The PyUNIxMD provides many interfaces...
In this work, new approach of missing step detection without using costly encoder in a micro stepping motor is proposed. For a steeping motor driver, a MOSFET driven H-bridge driver was adopted, and sinusoidal type of current is controlled to implement the micro stepping. Also, in order to investigate the missing step the current flowing the coil which is generated from the operational amplifier was...
In this work, Android operating system based robot platform and smart phone operated control and monitoring system are introduced. To implement this work, Cortex-A8 series S5PV210 embedded processor and Android operating system are correlated. The robot has an autonomous and manual travel and is controlled by only smart phone. In the Android OS (Operating System), the camera image is compressed to...
In this paper, the new vertical micro contact probe for the testing of circuits in chips is designed, and then the mechanical behavior is characterized. Vertical micro contact probes are used for circuit inspection tool `probe card' which has irregular area arrays and narrow pitch electrode pads. The new micro contact probes are designed to fulfill the requirements of 100?m electrode pitch, minimum...
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