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The radial variations in the velocity of longitudinal waves propagating through Japanese cedar and Japanese cypress were experimentally investigated. In addition, the tracheid length (TL), microfibril angle (MFA), air-dried density (AD), and moisture content (MC) were measured in order to determine the effect of wood properties on velocity variations within the wood trunk. For both species, the longitudinal...
A low power dissipation and broadband transimpedance amplifier IC has been developed for sub-carrier multiplexing (SCM) optical communication systems such as a multi-channel video signal transmission system. A 0.25<space>μm pseudomorphic double-heterojunction modulation-doped FET (MODFET) is adopted for the IC to achieve the required bandwidth and noise performance. Specifically, transimpedance...
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