稳定性

BACKGROUND: Iliosacral screw fixing the sacroiliac joint after reduction can provide the stability of the pelvis.

背景：骶髂螺钉直接固定复位后的骶髂关节，可提供足够的骨盆稳定性，其生物力学稳定性优于其他常用的内固定。

It results from theformation of infusible salt or hydrates by the complexing reaction of metal ion andnegative ions in alkaline solution. The stability mechanism was discussed byemploying scanning electronic microscope and x ray photoelectronspectroscopy.

结果表明，在中性介质中，其稳定性较好，而在碱性介质中的稳定性较差，这是因为在碱性介质中金属离子与介质中的阴性离子络合形成难溶性的盐或氢氧化物，加速了GIC的分解所致。

Physical and mechanical characteristics of rock and soil disposed from open pit is measured by means of engineering geological survey and hydrogeological survey as well as large amounts of laboratorical and field tests, based on the analyses of geological dates. Slope stability of waste-disposal sites is simulated by intelligential finite element method and predicted by BP nerve network method.

本研究在收集大量资料的基础上，通过工程地质、水文地质调查、勘察，以及大量的现场和室内试验，得出了新桥矿业有限公司露天排土场主要岩土物理力学性质，利用智能有限元方法进行了排土场边坡稳定性分析，并采用BP神经网络方法对边坡的稳定性进行了预测评价，在此基础上，对排土场排土工艺进行了优化研究。

Thermal stability of different lamellar microstructure in TiAl alloys was studied by TEM methods. Thermal stability of lamellar microstructure in TiAl alloys is not only related to the grain size/average interlamellar spacing, but also closely related to interlamellar boundary structure.

本文还用TEM等手段研究了TiAl合金不同片层显微组织热稳定性，发现TiAl合金的片层组织热稳定性不仅与片层晶粒的大小以及片层间距有关，而且还与片层界面的位错结构等因素密切相关。

The results indicated that the thermo-stability of the polymers derived from BOEMA was not as good as those derived from TBMA, and the more content of MAA in the compolymers resulted in lower stability. Terpolymer from BOEMA, MAA and St had higher thermo-stability than those from BOEMA, MAA and isobornyl methacrylate or methyl methacrylate.

当树脂中MAA含量较低时，BOEMA与St的共聚物和BOEMA与IBOMA或MMA的共聚树脂相比，表现出更好的热稳定性，分解温度有明显差异(相差30度以上)；另外，湿度对BOEMA的聚合物的稳定性也有很大影响，湿度越高，树脂分解越快。

The research results showed that the effects of personality characteristics on kinesthesis position accuracy of elbow joints and stability of hand action were not significant,the kinesthesis position accuracy of elbow joints obviously increased by using the rationing motor load, but the stability of hand action did not obviously change.

研究结果表明：个性特征对肘关节动觉方位准确性和手动作稳定性的影响不显著；定量运动负荷可以使肘关节动觉方位准确性明显提高，而手动作稳定性变化不显著。

Analyzed the relative stability and isomerization, it was found that Ni3BPsuperscript (3 was thermodynamically the most stable one. In addition, Ni3BPsuperscript (1, Ni3BPsuperscript (1 with singlet state and Ni3BPsuperscript (3, NiPsuperscript (3 with triplet state are kinetically stable ones.

分析各异构体的相对稳定性及异构化过程得出：Ni3BP上标(3是单、三重态中热力学最稳定的异构体；单重态的Ni3BP上标(1、Ni3BP上标(1和三重态的Ni3BP上标(3、Ni3BP上标(3具有一定的动力学稳定性。

Compared with the conventionalemulsion polymerization system in the presence of sodium dodecyl benzene sulfonate, the latices prepared by emulsifier-free emulsion polymerization have much more narrow distribution of latex particle sizes (0.2um in diameter), better resistance to electrolytes, pH, freeze-thaw, and better mechanical stability. Not only the tensile strength of the copolymers prepared by this method is obviously increased, but also the water resistance and adhesion capacity are significantly enhanced. On the other hand, the TG results indicate the copolymer has lower thermal stability than conventional copolymer.

实验结果表明，与传统乳液聚合体系相比，所获得的无皂乳液的乳胶粒子大小均一，粒径在0.20um左右；乳液具有优异的稳定性，不受酸碱度、电解质和低温冷冻的影响；附着力和粘接强度明显提高；成膜后显示较高的耐水性；但TG表明乳胶膜热稳定性有所下降。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

It has been found that the stability is related to the substitution, the bridged methine chain and the porlarity of the dyes.

研究了含碲菁染料的热稳定性，发现稳定性与染料的取代、多甲川桥链引入以及染料极性等因素有关。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。