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A metasearch engine supports unified access to multiple component search engines. To build a very large-scale metasearch engine that can access up to hundreds of thousands of component search engines, one major challenge is to incorporate large numbers of autonomous search engines in a highly effective manner. To solve this problem, we propose automatic(More)
MicroRNAs are a kind of small non-coding RNAs that play important roles in various biological processes such as cell proliferation, differentiation, and apoptosis. Cellular responses to UV-induced apoptosis have been suggested to be regulated by microRNAs at the posttranscriptional level, while the detailed mechanisms underlying this process remain unclear.(More)
In this paper, we propose a baseband nonlinear transformation technique to improve the overall communication system performance , under the peak power constraint. A closed-form expression is derived for the signal-to-noise-and-distortion ratio (SNDR) of certain nonlinear transformations. A strategy for SNR-adaptive optimum clipping is proposed. For(More)