نتایج جستجو برای: parallel noise barrier
تعداد نتایج: 501061 فیلتر نتایج به سال:
We have researched on the rational design method of active noise barrier based on the boundary surface control principle. This active noise barrier is composed of a conventional barrier, multiple secondary sources and multiple error sensors. The secondary sources and the error sensors are located on a surface in parallel with the barrier. By using this, we can control noise not only at the erro...
In this paper, a dc Josephson junction between two singlet superconductors (d-wave and s-wave) with arbitrary reflection coefficient has been investigated theoretically. For the case of high Tc superconductors, the c-axes are parallel to an interface with finite transparency and their ab-planes have a mis-orientation. The physics of potential barrier will be demonstrated by a transparency coeff...
a parallel hybrid system of hmm and gmm modeling techniques was implemented and used in a telephony speaker verification and identification system. spectral subtraction and weighted projection measure were used to render this system more robust against additional noise. cepstral mean subtraction method was also applied for the compensation of convolution noise due to transmission channel degrad...
When an electric current passes across a potential barrier, the partition process of electrons at the barrier gives rise to the shot noise, reflecting the discrete nature of the electric charge. Here we report the observation of excess shot noise connected with a spin current which is induced by a nonequilibrium spin accumulation in an all-semiconductor lateral spin-valve device. We find that t...
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