稳定性

The disparity in polarity between heavy fraction and residue was the main cause of altering the colloidal stability of residue system.

结果表明，SARA组分的变化对混合体系的胶体稳定性有影响，但不是影响其稳定性的主要因素，组分极性上的差距是造成混合体系稳定性变化的主要原因。

Results indicated that the addition of these two fractions in atmospheric residue exhibited negative effect on the colloidal stability of residue system, and the negative effect of adding FCC slurry oil was stronger.

结果表明，加入两种油品后，体系的稳定性均呈下降趋势；不同油品对渣油胶体稳定性的影响程度不同，加入减四线抽出油后体系的稳定性比加入催化裂化油浆时高。

The steady factors of the emulsion in water were studied ,and find that its stability is hardly influenced because of different quantity scores (1 000-5 000 mg/L)of the salt and different rigidness (0-500 mg/L)water.When the quantity of the Metolachlor increased by 40%, the stability of EW is still kept in good .

并通过对异丙甲草胺水乳剂稳定性影响因素的研究，发现不同含盐量(1 000~5 000 mg/L)和不同硬度(0~500 mg/L)的水对制剂的稳定性几乎无影响，有效成分含量增至40%时，制剂仍表现出较好的稳定性。

Several important concepts in robust design such as robust stability, robust performance,μ-stability and quadratic stability are studied. The conservatism in each robust test is also given.

对鲁棒稳定性、鲁棒性能，如μ-稳定性和二次型稳定性等控制系统鲁棒设计中的一些重要概念和相应的判据进行了研究，分析了它们的保守性。

The biocatalyzed characters of the purified cellulases were investigated with the CMC-Na as substrate. The most appropriate catalyzed temprature for cellulase 1 is 60 "C,and 65 for cellulase 2. The two enzymes have 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 cellulase 1 is 4 ~ 8, and 6-9 for cellulase 2. Zn2+, Ca2+, Mg2+, K+, Li+can ativate cellulase 1. K+, Li"1 can ativate cellulase 2. Cellulase 1 can mainly decompose CMC and salicin. Cellulase 2 can decompose not only CMC and salicin, but other substrates feebly.

以羧甲基纤维素为底物时，酶1的最适催化温度为60℃，酶2的最适催化温度为65℃，在50℃以下稳定性较好，底物对酶有较强的保护作用；酶1和酶2的最适pH分别为5.5和5.5～6.0，酶1的pH稳定性范围为4～8，酶2的稳定性范围为6～9；Zn~(2+)，Ca~(2+)，Mg~(2+)，K~+，Li~+对酶1有激活作用，K~+，Li~+对酶2有激活作用；酶1主要对CMC和水杨素有分解作用，对其它底物几乎不分解；酶2除了可以分解CMC和水杨素外，对其它底物也有微弱的分解作用。

In Japonica heterosis utilization, the purity of hybrid seeds was sometimes low due to the self-fertility and/or unstable sterility of some BT type Japonica cytoplasmic male sterile lines. For the WA type Japonica CMS lines, their sterility is much stable, but there is also some difficult to take use of them because their flowering habit is bad and it is very difficult to restore their fertility. The HL type CMS lines were identified to have the same flowering habit and outcrossing rate with the BT type CMS lines in Japonica hybrid rice. Moreover, the sterility of HL type CMS lines was more stable than that of BT type, and their restorable characteristics was better than that of WA type.

部分BT型粳稻不育系存在自交结实现象，不育性的稳定性较差，影响杂交种的纯度；WA型粳稻不育系虽然不育性稳定，但开花习性差，育性最难恢复，应用难度较大；HL粳稻不育系开花习性及异交结实率与BT型粳稻不育系无显著差异，育性稳定性明显好于BT型粳稻不育系，可恢复性明显好于WA型粳稻不育系，较好地协调了育性稳定性、开花习性和可恢复性几方面的矛盾。

In Chapter 3 Firstly, the exponential stability in mean square and almost sure exponential stability for neutral stochstic neural networks with time-varying delay can be discussed by using the linear matrix inequality and the semimartingale convergence theorem; And our sufficient conditions are less conserative; Secondly, by utilizing the fixed point theorem, some sufficient and necessary conditions ensuring the asymp- totic stability in mean square for neutral stochastic neural networks with time-varying delays can be given.

第三章首先，利用线性矩阵不等式方法和半鞅收敛定理，考虑了一类具变时滞中立型随机神经网络的二阶矩指数稳定性和几乎必然指数稳定性，所得到的条件保守性要好；其次，采用不动点方法，给出了具变时滞中立型随机神经网络的二阶矩渐近稳定性的充要条件。

It was found:(1) the stability of the clusters increased with the bond number in the clusters;(2) the clusters with three dimensional geometry are more stable than ones with two decisional geometry;(3) the ionic potential of the clusters in gas phase and on the surface of the silver bromide grains are all positive, and the electron affinity are all negative.

结果表明；气相中团簇的稳定性随团簇中键数的增加而升高，三维构型的稳定性大于二维构型的稳定性；气相中Ag〓团簇的电离能都大于零，电子亲和势都小于零；溴化银颗粒表面的Ag〓团簇的电离势也是大于零，电子亲和势也是小于零。

Support vector machine is used to build the nonlinear relationship. The parameters of SVM are optimized with a continuous ant colony algorithm. Thus the ACAC-SVM is proposed for forecasting slope stability. Slope of right-bank spandrel groove at Jinping is forward slope.

通过分析影响边坡稳定性的主要因素，采用支持向量机建立边坡稳定性和影响因素之间的非线性关系；同时，考虑到支持向量机参数对预测效果的影响，采用连续蚁群算法对其进行优化选择，从而提出边坡稳定性预测的蚁群优化支持向量机模型。

After introducing failure model of PCPCF, the dissertation has deduced the circular arc method formula of PCPCF's total stability analysis. The analysis shows that PCPCF can improve the stability of natural foundation. At the same time, the dissertation has also perfected stability calculation method of composite foundation which has caverns.

介绍了复合地基的破坏模式之后，推导了素混凝土桩复合地基整体稳定性分析的圆弧法公式，分析表明素混凝土桩复合地基有利于提高天然地基的抗滑稳定性；另一方面完善了洞室复合地基稳定性的计算方法。

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。