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Search Results: 1 - 10 of 33282 matches for " Lan Hu "
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Large deviation principle of SDEs with non-Lipschitzian coefficients under localized conditions
Yunjiao Hu,Guangqiang Lan
Mathematics , 2014,
Abstract: Localized sufficient conditions for the large deviation principle of the given stochastic differential equations will be presented for stochastic differential equations with non-Lipschitzian and time-inhomogeneous coefficients, which is weaker than those relevant conditions existing in the literature. We consider at first the large deviation principle when $\int_0^t\sup_{x\in\mathbb{R}^d}||\sigma(s,x)||\vee|b(s,x)|ds=:C_t<\infty$ for any fixed $t$, then we generalize the conclusion to unbounded case by using bounded approximation program.
Explicit solutions to some nonlinear physical models by a two-step ansatz

Hu Jian-Lan,

中国物理 B , 2008,
Abstract: Explicit solutions are derived for some nonlinear physical model equations by using a delicate way of two-step ansatz method.
A Quasi-ARX Model for Multivariable Decoupling Control of Nonlinear MIMO System
Lan Wang,Yu Cheng,Jinglu Hu
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/570498
Abstract: This paper proposes a multiinput and multioutput (MIMO) quasi-autoregressive eXogenous (ARX) model and a multivariable-decoupling proportional integral differential (PID) controller for MIMO nonlinear systems based on the proposed model. The proposed MIMO quasi-ARX model improves the performance of ordinary quasi-ARX model. The proposed controller consists of a traditional PID controller with a decoupling compensator and a feed-forward compensator for the nonlinear dynamics based on the MIMO quasi-ARX model. Then an adaptive control algorithm is presented using the MIMO quasi-ARX radial basis function network (RBFN) prediction model and some stability analysis of control system is shown. Simulation results show the effectiveness of the proposed control method.
Exact solutions for four coupled complex nonlinear differential equations
Hu Jian-Lan,

中国物理 B , 2007,
Abstract: In this paper, exact solutions are derived for four coupled complex nonlinear different equations by using simplified transformation method and algebraic equations.
Exact travelling wave solutions to some fifth order dispersive nonlinear wave equations
Hu Jian-Lan,

中国物理 B , 2005,
Abstract: Exact travelling wave solutions to some nonlinear equations of fifth order derivatives are derived by using some accurate ansatz methods.
Exact solutions to two coupled nonlinear physical equations
Hu Jian-Lan,

中国物理 B , 2004,
Abstract: In this paper, a two-step ansatz is proposed, which leads to some new solutions to two coupled nonlinear physical equations.
Application of color Doppler ultrasonography in treating ischemic optic neuropathy with extraocular counterpulsation

LUO Lan,HU Bing,

中华医学超声杂志(电子版) , 2008,
Abstract: Objective To evaluate the influence of extraocular counterpulsation on ocular fundus blood vessels using high-frequency color Doppler ultrasonography.Methods Twenty-one patients with ischemic optic neuropathy were treated with extraocular counterpulsation.During treatment,the Doppler spectra were detected with high-frequency color Doppler ultrasonography.The peak systolic velocity(PSV),end diastolic velocity(EDV)and resistance retinal index(RI)of central retinal artery and posterior ciliary artery were meas...
A Chinese MARC-Oriented Study on the Establishment Feasibility of the East Asian MARC System
  Nancy Ou-lan(Hu) Chou
Journal of Library and Information Science , 1985,
Abstract: 頁次:1-23
Polynomial and exponential stability of $θ$-EM approximations to a class of stochastic differential equations
Yunjiao Hu,Guangqiang Lan,Chong Zhang
Mathematics , 2014,
Abstract: Both the mean square polynomial stability and exponential stability of $\theta$ Euler-Maruyama approximation solutions of stochastic differential equations will be investigated for each $0\le\theta\le 1$ by using an auxiliary function $F$ (see the following definition (2.3)). Sufficient conditions are obtained to ensure the polynomial and exponential stability of the numerical approximations. The results in Liu et al [12] will be improved and generalized to more general cases. Several examples and non stability results are presented to support our conclusions.
The explicit solution and precise distribution of CKLS model under Girsanov transform
Guangqiang Lan,Yunjiao Hu,Chong Zhang
Mathematics , 2014,
Abstract: We study the relation between CKLS model and CIR model. We prove that under a suitable transformation, any CKLS model of order $\frac{1}{2}<\gamma<1$ or $\gamma> 1$ corresponds to a CIR model under a new probability space. Moreover, we get the explicit solution and the precise distribution of the CKLS model at any time $t$ under the new probability measure. We also give the moment estimation of CKLS model.
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