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Magnetic and electrical devices with reduced size and high performance are increasingly needed as the rapid development of radio frequency (RF) and mobile communication technologies, especially for VHF (30–300 MHz) and low-UHF (∼300 MHz–1 GHz) frequency bands where conventional devices have rather large physical dimensions.
The effective masses of hole and electron in the inversion layers have been quantitatively characterized for Ge p- and n-MOSFETs, for the first time, with Shubnikov-de Haas (SdH) oscillations measurements at ultra low temperatures. It was found that the effective mass clearly increased with a larger Ns for both hole and electron in (100)/(110)/(111) Ge p and n-MOSFETs. The effectiveness and necessity...
The power cable has been widely used for decades. As an important accessory of power cable, the cable joint is the weak link because of site installation conditions. Partial discharge and insulation aging in it cause temperature rise, which may lead to explosion of the cable joint in serious conditions. There are many researches about temperature rise of the cable and cable joints. By measuring the...
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