稳定性

By adopting the calculating analysis method of elastic-plastic three-dimensional FEM numeric simulation, this paper makes a simulation analysis on the structure stability of the shallow cover and unsymmetrically loaded parts in Tongyoushan tunnel, mainly simulates the effects caused by different construction orders on surroundings and supporting structure stability, and it centers on the analysis on the weak part, the midwall in the lining of the connecting-arch tunnel.

采用弹塑性三维有限元数值模拟计算分析的方法，对桐油山隧道浅埋、偏压地段结构稳定性进行了模拟分析，主要模拟了不同施工顺序对围岩及支护结构稳定性的影响，重点对连拱隧道整体衬砌中的薄弱环节－中墙进行了分析。

An analysis is also made of the moving regular of particles, the leakage passage formation feature, and the particles displacement field and so on. The internal stability of soils is studied from the perspective of gradation. Results show that the stability of soils relates closely to the shape of gradation curves and coefficient of ununiformity.

研究得到管涌发展过程中颗粒的移动规律，渗漏通道的形成特点，流速、颗粒位移场等随水力梯度的变化特点，并从级配角度分析土样的稳定性，得到土体的稳定性与级配曲线形状及不均匀系数等因素有关的结论。

Recuperation ratio of silica xerogel is high, chemical stability of silica xerogel in acidic solution is very strorg.

研究了SiO〓纳米干凝胶的再生率和在酸溶液中的稳定性，结果表明SiO〓纳米干凝胶的再生率较高，在酸中的稳定性强。

At the same time, on the base of the analysis and study of the characteristic of sliding stability failure of loess slope in Sanmenxia area, a method, which is suitable for many hori

同时，在对三门峡地区黄土边坡滑动失稳特征进行分析研究的基础上，采用了一种适合多种土层、不同坡型的边坡稳定性分析方法，对三门峡地区四处深路堑黄土边坡实体工程稳定性进行分析及评价。

The analysis by differential scanning calorimetry indicates that the thermal stability and the glass forming ability of Cu_(50)Zr_(42)Al_8 has been enhanced with the affiliating of RE...

经DSC分析发现，添加稀土元素Y有利于提高Cu_(50)Zr_(42)Al_8的热稳定性和非晶形成能力，且Cu_(50Zr_(42)Al_8_(99)Y_1的热稳定性和形成能力最强。

Based on the typical case study and positive analysis on Broccoli Cooperative Organization in Lin- hai,Zhejiang province,this paper find that cooperative organizations under capital control in the devel- oped area present the phenomena of function feebleness,and with the characteristic of"property right locking",farmers in the cooperative organization are still dispersedly resisting the nature and market risks,and meanwhile benefit apperceiving of farmers is not obvious,thus they are likely to choose to exi...

本文通过对浙江临海西兰花合作社的典型案例和实证分析发现，经济发达地区资本控制下的合作社呈现出明显的功能弱化现象，并同时伴随着合作社&产权锁定&特征，合作社农户仍然分散地抗御着自然风险和市场风险，同时农户对加入合作社后的利益感知程度不高而可能选择退出，信息、资本及技术的可获得性和销售的稳定性都将强烈冲击合作社的存在边界、规模和稳定性。

It is shown that the direction of bifurcation and the stability of the bifurcating periodic solutions of the Euler methods are the same as the direction of bifurcation and the stability of the bifurcating periodic solutions of the original delay differential equation when the stepsize is small enough.

证明当步长充分小时数值Hopf分支的分支方向、分支周期解的稳定性与原方程的Hopf分支的分支方向、分支周期解的稳定性相同。

The characteristics of Hopf bifurcation from the origin, including the existence condition, the direction as well as the stability of bifurcating periodic solutions are discussed in detail, which can be demonstrated by the numerical simulations.

讨论了快慢两时间尺度下超混沌Lorenz系统原点的稳定性问题，分析了原点的Hopf分岔，包括Hopf分岔的存在性，分岔方向以及分岔周期解的稳定性等问题，并用数值例子对所得到的结果加以验证。

In this article, a study on stability of 4-layer brazed steel tubes forming is firstly tried in this field.

本文对四层卷焊管成型稳定性所进行的尝试性研究，在卷焊管稳定性研究领域尚属首次。

The paper cluing on the geo-phenomena which the loose accumulation appeared on multi-place in process of hole dibbling in the Llongchi slope in Diexi seismic area and based on the investigating and analyzing on geo-physiognomy times, adopting VLF testing and RaA testing, clarified the spatial distributing characteristics of the embedding ancient groove's in the Longchi Slope, disclosed the recent evolutive characteristics of Minjiang river, solved the geo-issue about water-project concerned; The research no...

围绕叠溪地震区的龙池岸坡在引水隧洞施工开挖过程中多处出现沟谷相的松散堆积物这一地质现象为线索，在多次现场地质地貌调研分析的基础上，采用甚低频电磁法现场测试和RaA氡气现场测试的验证分析，阐明了龙池岸坡中埋藏古沟槽的空间分布特征，揭示岷江河谷近期演化特征，解决引水工程施工中所关心的地质问题；通过本次研究不仅对龙池岸坡的稳定性有了新的认识，而且为类似强震区的岸坡稳定性分析提供新的思路和方法。

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。