期刊：
Communications in Statistics - Theory and Methods,2007年36(12):2263-2272 ISSN：0361-0926
通讯作者：
Miao, Yu
作者机构：
[Miao, Yu] Wuhan Univ, Dept Math & Stat, Wuhan 430072, Hubei, Peoples R China.;Henan Normal Univ, Coll Math & Informat Sci, Henan, Peoples R China.;Hunan Agr Univ, Coll Sci, Hunan, Peoples R China.
通讯机构：
[Miao, Yu] W;Wuhan Univ, Dept Math & Stat, Wuhan 430072, Hubei, Peoples R China.
会议名称：
Workshop on Skew Distributions - Inference and Applications
会议时间：
DEC 06-07, 2004
会议地点：
Guanajuato, MEXICO
会议主办单位：
Wuhan Univ, Dept Math & Stat, Wuhan 430072, Hubei, Peoples R China.^Henan Normal Univ, Coll Math & Informat Sci, Henan, Peoples R China.^Hunan Agr Univ, Coll Sci, Hunan, Peoples R China.
关键词：
Central limit theorem;EV regression models;LS estimator
摘要：
In this article, we obtain the central limit theorems for LS estimator in simple linear errors-in-variables (EV) regression models under some mild conditions. And we also show that those conditions are necessary in some sense.
摘要：
The water-soluble antioxidant, chlorogenic acid, was successfully encapsulated in the low cost-high volume yeast cells for the first time, as characterized by FT-IR spectra and fluorescence micrograph of the yeast cells, chlorogenic acid and microcapsule. The encapsulation efficiency (EE) of yeast cells could be enhanced significantly (P < 0.001) by the treatment of yeast cells with plasmolyser before encapsulation. Also, the release characteristics of the obtained yeast-encapsulated chlorogenic acid were evaluated, and its storage stability as a powder were investigated at 25 degrees C/75% relative humidity (RH), 25 degrees C/90% RH and 60 degrees C. It could be clearly demonstrated that no chemical changes had taken place during the encapsulation, and the yeast-encapsulated chlorogenic acid exhibited a good stability. This study would be helpful to promote the application of chlorogenic acid. The new yeast-cell-based encapsulation protocol may have some general interests for maintaining the stability of other water-soluble substances. (c) 2006 Elsevier Ltd. All rights reserved.
摘要：
In this paper, we consider the n-order neutral delay differential equation with unstable type ((x(t) - p(t)x(t - tau))((n)) = q(t)vertical bar x(t - sigma)vertical bar(alpha-1)x(t - sigma), t >= t(0), where n >= 2 is an even integer, alpha >= 1, tau > 0, sigma > 0 and p, q is an element of C([t(0), +infinity], R+). We first prove that this equation always has an unbounded positive solution, then some new bounded oscillation and nonoscillation criteria are obtained. (c) 2005 Elsevier Inc. All rights reserved.
作者机构：
[Chen, AP] Department of Mathematics, Xiangnan College, Chenzhou, Hunan 423000, China;[Zhou, TJ; Liu, YR] School of Mathematics, Central South University, Changsha, Hunan 410083, China;[Zhou, TJ] College of Science, Hunan Agricultural University, Changsha, Hunan 410128, China
通讯机构：
[Zhou, TJ ] ;Cent S Univ, Sch Math, Changsha 410083, Hunan, Peoples R China.
关键词：
almost periodic solution;global exponential stability;Halanay;inequality;shunting inhibitory cellular neural networks
摘要：
In this paper, a class of two-dimensional shunting inhibitory cellular neural networks with time-varying delays and variable coefficients as following system $$ \frac{{d}x_{ij}}{{d}t}=L_{ij}(t)-a_{ij}(t)x_{ij}-\sum_{C_{kl}\in N_r(i,j)}c_{ij}^{kl}(t)f_{kl}(x_{kl}(t-\tau_{kl}(t)))x_{ij}$$ is studied, which every cell has its own signal transmission function. We obtain two sufficient conditions about existence of a unique almost periodic solution for the system by way of exponential dichotomy and the Banach fixed point theorem, and point out the utilization occasion of every condition. Moreover, we prove that the almost periodic solution is global exponential stability by using of Halanay inequality. Two examples are given to illustrate that the criterion are feasible.
作者机构：
[崔建国; 孙志良; 陈小军; 苏建明; 杨惠麟] College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;[章怀云] Central South Forestry University, Changsha 410004, China;[卢向阳] College of Sciences, Hunan Agricultural University, Changsha 410128, China
通讯机构：
[Sun, Z.-L.] C;College of Animal Science and Technology, Hunan Agricultural University, China
摘要：
Based on the numerical and analytical method, the I V characteristics′ numerical model has been obtained for the bipolar voltage control transistor that is a novel device. Appling the software package of Mathematic, we have simulated both the voltage transfer and the voltage output characteristically graphs of BJMOSFET. The results show that BJMOSFET has a larger current capacity than the power MOSFET under the same operating conditions and structure parameters, only the threshold voltage is increased a little.
