稳定分布

Then, some criteria, i.e., the sufficient conditions, for the asymptotical stability of the system in form of mean square are given by linear matrix inequality, which can easily be checked by Matlab toolbox.

然后基于线性矩阵不等式技术，给出了时滞随机分布参数系统稳定的充分条件，所得到的结果表示成线性矩阵不等式的形式，所以易于验证。

As to the assumption of stationary state,...

我们讨论了热、光和催化剂分解引发的加聚反应动力学，结合自由基型加聚反应的特性，得到了动力学方程粗的解，推导出链段分布和平均分子量公式，证实稳定态假定对于自由基型加聚反应是可以应用的。

There are two kinds of spinels in a granulite terrain of Yushujgou, South Tianshan Mountain. One occurs in the intermediate and basic granulite units and is characterized by enriched Al and poor Cr, belonging to Al_spinel. In thin sections it shows dark green color and subhedral to anhedral form, and coexists with other metamorphic minerals, suggesting a neogenic metamorphic mineral of granulite facies. The other occurs in the adjacent ultramafic rock unit, belonging to Cr_spinel. In thin sections, it is dark brown in color and is scattered among olivine, clinopyroxene and orthopyroxene as irregular grains, indicating a stable residual mineral in the process of granulite facies metamorphism.

新疆榆树沟麻粒岩地体中发育两类尖晶石：一类见于中、基性麻粒岩体中，其化学成分富 Al贫 Cr ，属铝尖晶石，镜下为深绿色，呈半自形至他形粒状，与其它变质矿物共生，表现为麻粒岩相的新生变质矿物；另一类发育在空间上与麻粒岩体紧密相邻的超镁铁质岩体中，为铬尖晶石，镜下为深褐红色，呈不规则粒状分布于橄榄石、斜方辉石和单斜辉石之间，为麻粒岩相变质过程中稳定的残余矿物。

The thickness of eyelid, vermilion of the lip, nasal ala, helix of ear, submaxilla, temporalis anterior are less than 2mm, the thickness of apex of nose, upper lip, nasal dorsum, eyebrow are more than 3 mm, and other sites range from 2 to 3mm.conclusion the thickness of skin and epidermis is different in different sites in faces, the proportion of epidermis and skin is relatively stable and there is some character in the thickness distribution area.

除口唇、鼻、眼眉、耳轮、下颌等部位外，面部大部分皮肤厚度为2.00～3.00mm。结论：本组所测青壮年面部不同部位的皮肤和表皮厚度不同，表皮占皮肤的比例相对稳定，皮肤厚度的区域分布具有一定特点，据此可以指导面部的磨削术等外科手术。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

Our main work is as follows: the stable laser mode theory in uniform plasmas is extended to non-uniform plasma cases; the discussion of the sufficient and necessary conditions for laser self-focusing in uniform plasmas is developed to non-uniform plasma cases; a quantitative approach to judge the impact of different plasma density distribution on laser self-focusing is proposed; the evolution properties of asymmetric laser filed in non-uniform and uniform plasmas are discussed and mechanisms that symmetric channel-like plasmas can confine the laser centroid around the plasma channel axes and symmetrize initially asymmetric laser beams are proposed; the formation of solitary standing wave in moderate plasma density is studied by PIC simulations and can be explained by stimulated Raman scattering of laser beams in plasmas.

主要工作为：把均匀等离子体中激光的稳定模理论推广到横向非均匀等离子体情形；把均匀等离子体中激光自聚焦的充分和必要条件的讨论推广到横向非均匀等离子体情形；给出横向密度分布不同的等离子体影响激光自聚焦的定量判据。讨论了初始不对称的激光场在横向非均匀及均匀等离子体中的演化特性，并提出了具有对称腔道结构的等离子体箍缩激光质心和对称化初始不对称激光场的物理机制。用粒子模拟讨论了激光场在等离子体中形成孤立驻波的过程，认为前向受激拉曼散射是发生此现象的可能机制。

PE will increase the herbarium collection by expanding its collecting and exchange programs (particularly emphasizing important groups distributed outside of China); set up a strong research team of taxonomist s; train the future generation of taxonomist s

标本馆的发展规划：1、通过采集和交换（特别是收集我国没有分布的重要类群）等途径，增加标本馆藏量；2、建立稳定的经典分类研究队伍，培养后备人才，深入开展植物分类学研究；3、加快标本馆数据库的建设；4、进一步加强植物学科普教育基地建设。

With four-wheel independent and StabiliTrak stability control standard, the Camaro will tip the scales at about 3,700 pounds, but is said to have a near ideal 52/48 weight distribution.

随着四轮独立和StabiliTrak稳定控制标准，卡玛洛将提示的尺度约为3700英镑，但据说已接近理想的第52/48号的重量分布。

It is ultra-fine powder of antibacterial effect with high quality synthetic zeolite catalyst, with silver antibacterial effect of zinc and other metal ions to form a uniform dispersion stability to the frame structure of zeolite.

它是以优质合成沸石为载体，把具有抗菌作用的银锌等多种金属离子以稳定的形态均匀地分布到沸石的架状结构中，以及多种助剂复合而成的具有抗菌作用的超微细粉末。

METHODS: The MGC-803/ E2F-1 gastric cancer cells which were stably transfected with E2F-1, and containing unpossessed carriers, and the cells without transfection were performed MTT test to draw growing curve, and to compute cell proliferation rate. Cell cycles were examined by flow cytometry.

对稳定转染E2F-1的胃癌MGC-803/E2F-1细胞、转染空载体的MGC-803/EV及未转染的MGC-803细胞进行MTT法检测，绘制生长曲线和计算细胞增殖率；流式细胞仪检测各组细胞周期分布。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。