First, we divide the input signal into four non-uniform subbands via discrete wavelet transform. In addition, a nonlinear Teager energy operator is then utilized into each subband signals. We show that the TEO can decrease the influence of noise on subbands significantly. Besides, the other advantage is suitable for the result of subband auto-correlation function.

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In this paper, a discrete stage-structured epidemical model is proposed and studied.

本文主要討論了離散的階段結構傳染病模型。

To solve the nonlinear 0-1 programming problem, it is transformed into an equivalent continuous nonlinear programming on the domain of [0, 1] by a nonlinear equality discrete constraint.

為了求解非線性0-1離散規(guī)劃問題日韩欧美入口三，通過非線性等式的"離散性約束"將其轉化為[0久久r热这里有精品视频， 1]區(qū)間上等價的連續(xù)變量非線性規(guī)劃。

Firstly, based on the stability criterion for the nominal discrete singular time-delay system, a sufficient condition for the existence of the static output feedback controller in terms of linear matrix inequality with linear matrix equality constraint is established, which ensures that the resulting closed-loop system is regular, causal and robustly asymptotically stable, and the static output feedback controller is designed by the feasible solution of the linear matrix inequality with linear matrix equality constraint.

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The traditional method is that sampling 20 equidistance discrete voltages to calculate the virtual value. To gain the virtual value, we firstly average their square values, and then extract it.

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In the first place, on the base of studies concept ascending and attribute dependency, we forward a method to select attribute value partition, which can effectively resolve the problem of minimum faith and minimum support, in order to induct potential knowledge from standard discrete symbolic data, the dissertation studies join operation for generating candidate set and delete operation for deleting redundant equivalence class, and propose an recursion algorithm to realize highly generalization of data.

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About 2.6%~27.1% high graders appeared the situations that suffer denominator or numerator control, while handling the problem of equivalence fraction of continuous quantity or discrete quantity.

在等值分數(shù)概念表現(xiàn)上，約有2.6﹪~27.1﹪的學童在處理連續(xù)量或離散量等值分數(shù)問題時日韩特黄A片毛多片免费观看，均出現(xiàn)受分母或分子控制的情形玖玖在线视频，用以判斷分數(shù)值所表示的具體量。

Secondly, the error equation is equivalent to the discrete switched system related to the hop count of the wireless transmission, and the stability of the error system is proved.

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On the base of the acoustics , a whole linear time - varying discrete speech produce model is established through anatomising the factors including track , driving source and lip eradiation the mechanism of speech in this paper , and we draw a conclusion that the time between glottal closure is pitch period

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