稳定性

To solve the problem of robust stability test of the systems, we develop a 2-D algebraic test for stability of time-delay systems with an edge test set based on Kharitonov vertex polynomials.

为解决这一类系统的鲁棒稳定性问题，我们提出时滞系统棱边鲁棒稳定性的2-D代数检验，该检验基于由Kharitonov端点集合构造的棱边集合。

This work is supported by the Ministry of Science and Technology of China (No. 2004BA901A02). Three new theoretical models are proposed in this paper, which are three dimensional stability analysis model of landslides with single slip surface, three dimensional stability analysis model of landslides with multiple slip surface and failure time prediction model of landslides. Moreover, the kinetic rule of sliding body and rockfall are also discussed in this thesis.

在国家科技攻关计划"西部开发科技行动"重大项目(编号：2004BA091A02)的资助下，本文建立了单滑面滑坡三维稳定性分析模型、多滑面滑坡三维稳定性分析模型和滑坡失稳时间预测模型，同时还对滑落体和崩落体的运动规律进行了探讨。

In order to develop Li Siguang's academic thoughts,this paper reviews the creation process of Li Siguang's "safety island" thought,briefly introduces the development process of the thought from "safety islands and stable masses" to "regional crustal stability" and summarizes the main factors and methods for regional crustal stability evaluation.

为了弘扬李四光的学术思想，本文回顾了李老"安全岛"学术思想的创立过程，简单介绍了在工程实践中，从"安全岛和稳定地块"到区域地壳稳定性评价的发展过程，并结合作者多年的研究积累，归纳了区域地壳稳定性评价的主要因素和技术方法。

Following the idea of "Safety Island"the crustal stability zonation map of China (1:5000000)is first compiled on a grid basis in different steps using fuzzy synthetic judgement ,image recognition and an expert appraisal system.

中国区域地壳稳定性评价图，是根据"安全岛"理论，采用网格划分，逐层应用模糊综合评判和图象识别，以及区域地壳稳定性评价专家系统的步骤和方法编制完成的。

The most appropriate catalyzed temprature and pH for it is 60 ℃ and 5.5 respectively. It has the extreme stability at the temperatures no more than 50 ℃.The CMC-Na has the protective effect on the cellulase. The pH stability range of the purified cellulase is 4 ~ 8. Zn2+, Ca2+, Mg2+, K+, Li+ can ativate the cellulase. And cellulase can mainly decompose CMC and salicin, but can decompose other substrates feebly.

对这个组分的催化性质进行了研究，该酶的最适催化温度60 ℃，pH值为5.5，在50 ℃以下酶的稳定性较好，70 ℃条件下底物对酶有较强的保护作用，该酶的pH稳定性范围为4～8， Zn2+，Ca2+，Mg2+，K+，Li+对酶活有促进作用，Mn2+、Co2+、、Fe2+、Fe3+对酶活起抑制作用，酶对CMC-Na和水杨素有分解作用，而不分解脱脂棉和滤纸。

Aimed at the scantiness of segment method which is used in comprehensive evaluation model of interval-number,based on reamer intercept method,considering the model s stability,using attribute recognition theoretical model for reference.

针对现有区间数综合评判模型中，生成区间数所依据的线段法的不足，以刀切法思想为基础，通过模型的稳定性分析，借鉴属性识别理论，提出了一种以增强模型稳定性为目的的改进方法。

Aimed at getting rid of big bulk, low precision, limited secular stability and high cost price the single star simulator used to be, while based on the practical demands in single star simulator project and combining with the technical specifications of star sensor for user, the paper proposes to use high stability adjusted digital light source as the core elements of the single star simulator, and describes development methods and development technologies for the whole system of the single star simulator from the view of project application.

论文主要针对过去研制的单星模拟器体积大、精度低、长期稳定性不够、成本高等缺点，结合单星模拟器的工程使用实际需要和用户星敏感器的技术指标要求，提出了一种数字式光源的设计方法，采用闭环控制并使用大规模集成电路模块，减小了光源体积(光源由三块核心电路板组成，尺寸分别110mm×110mm、100mm×100mm和30mm×30mm)提高了光源精度、提升了光源稳定性(光源连续工作8小时内的误差15.848%)和降低了光源成本，在此基础上，实现对以往单星模拟器诸多缺点的改进。

By means of different subjects and te chniques,the paper makes an overall study on the crustal stability of Beihuaiyang region and its adjace nt areas from the aspects of current t ectonic stress fields,principal fa ult structures,analysis of regional fa ults and neotectonic activity,seis mic activity and numerical modeling,etc.

运用多学科、多技术相结合的研究方法，从现今构造应力场特征、现代地壳形变特征、主干断裂构造以及区域断裂活动性分析、新构造运动、地震活动、数值模拟等方面入手，对北淮阳及其邻接区地壳稳定性进行了全面而系统的研究，指出本区地震活动受走滑活动断裂控制，中、强地震集中于区内东南部和西北部NW向与NE向断裂交汇处；第四纪无大规模差异升降运动；数值模拟等综合分析表明，信阳地区的区域构造稳定性高，现代地壳形变量小，应力平缓，地震活动少且弱。

To predict the effect of site-specific mutation on protein stability and function has been an important issue of protein science.

预测特定位置突变所引起的蛋白质稳定性改变是生物学上的重要议题，将序列及结构资讯有效的转换为能量参数，将有助於蛋白质稳定性及功能的分析。

We discuss how to evaluate the stability of storage cavities as an example of a slat mine for natural gas storage in Jiangsu Province, the example explained that the criteria could be adjusted according to the situation of the storage cavities in practice.

同时，针对我国某盐岩矿井能源储存作为一个工程应用例子，探讨了如何评价储存库的稳定性，同时也显示储存库稳定性评判标准可以根据具体的情况做必要的修改。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。