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The principle of gas-flowing assistant growing of carbon nanotube is described in this paper. The effect of gas-flow was analyzed with numerical simulation, which can give some instruction for the self-aligned growth of carbon nanotube. Scanning electronic microscopy (SEM) images demonstrate that the self-aligned carbon nanotube can be realized by a gas-flowing CVD process and the distribution of...
A fast decoding algorithm based on parallel detection is proposed for the serial concatenated overlapped code division multiplexing (SC-OVCDM) signals. It shows that maximum likelihood (ML) detection of SC-OVCDM inner decoder can be transformed into two parallel sub-decoders which have low computational complexity. In order to tighten the performance gap between the fast decoding algorithm and the...
The new perfect complete generalized complementary orthogonal code group, which has perfect aperiodic auto-correlation function and cross-correlation function, is constructed. Two new methods, which are based on Schweitzer's concept and theory of overlap and reuse, are adopted to improve the code efficiency. There is no adjacent cell interference for the ideal auto-correlation function and cross-correlation...
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