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We present our recent researches on novel group IV nano- and micro-structures for potential light sources on Si, including the tensile strained Ge quantum dots (QDs), GeSn thin films and microstructures, and Ge(Sn) nanowires. Tensile-strained Ge QDs were grown by SS-MBE, and photoluminescence was achieved. The GeSn thin films were demonstrated with Sn concentration above the bandgap transition critical...
We present a new fiber-optic high-temperature sensor based on a thin-core fiber (TCF) modal interferometer. A thin-core fiber, whose core radius is about half of the radius of a standard single-mode fiber (SMF), is inserted between standard SMFs to form an extremely simple in-fiber modal interferometer. The wavelength of the transmission dip increases linearly with the temperature. Experimental demonstration...
Thermal protection is one of the most important aspects in an electric motor protection system. A dc signal injection-based stator winding temperature estimation technique has been proposed for soft-starter-connected electric motors by the authors. As a continuation of the previous work, this paper proposes a compensation approach for power supply unbalance, motor internal unbalance, and line resistance...
The purpose of this study was to explore the time course of cerebral lactate concentration in ischemic rat brain after sacrifice, in which area the morphology signal was still normal in the early phase. Ischemic rat model was used in this study. Eighty rats were fasted overnight before sacrifice and divided into 16 groups randomly. Lactate concentration was measured by using LD kit. Results showed...
Previous studies showed that there is a sharp difference of pressure oscillation between noisy film boiling and silent film boiling in He II. In this study, transient temperature measurement was carried out to add supplementary information of noisy film boiling and silent film boiling.
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