结构稳定性

It was investigated how to increase the yield and purity of tannin, flavone and oligoprocyanidms from the root and stalk of sanguisorba, and the stability of polyphenols from sanguisorba was studied, too. The chemical constitutes of sanguisorba were analyzed, the conditions on extracting tannin, flavone and oligoprocyanidins from sanguisorba by general lixiviating process and ultrasonic wave were optimize. The flavone and oligoprocyanidins were separated from sanguisorba and purified. The stability of polyphenol from sanguisorba was studied and the chemical structure of the products was analyzed.

本论文以地榆根茎为原料，对如何提高其主要活性成分鞣质、黄酮类物质以及低聚原花青素得率和纯度以及地榆多酚的稳定性进行了探讨；主要分析了地榆中化学成分，常规浸提和超声波浸提对地榆根茎中鞣质、黄酮类以及低聚原花青素提取条件的优化，地榆根中黄酮类和低聚原花青素的分离纯化，地榆多酚稳定性能以及产品的初步化学结构分析。

The good design of this device is very important to accomplish flow control and stability of the aircraft construct. The contour of scarfed reversal nozzle has many discontinuous points and a step at supersonic zone. So it can generate a series of expand waves and shock waves, and accomplished with flows separation and reattach.

斜切反喷管作为导弹常用的推力终止装置，能够可靠地完成发动机与有效载荷的分离，它的设计水平对提高导弹命中精度和武器装备的作战性能尤为重要；超声速开式空腔作为流动控制装置，具有减小阻力、增加燃烧混合、延缓边界层分离等作用，但同时也会带来严重的压力波动和噪声，其合理的设计对流动控制的实现以及飞行器结构的稳定性至关重要。

The electronic structure of contact between Ti surface and a semiconducting carbon nanotube is also investigated.

我们还研究了半导体碳纳米管在Ti表面的稳定性和电子结构性质。

In this paper, dynamic model of slewing hydraulic system of excavating working attachment is established by means of power bond graph.

当然也可由功率键合图推导出传统的传递函数或状态变量形式的方程，在实际中，要求传递函数和状态变量模型形式在结构上的规整性可能引起麻烦，主要是稳定性问题。

In studies of the aging of the homopolymerization and the copolymerization of emulsion, it was also found that the stability of the soapless polymer particles has an intimate relationship with the method of preparation, the structure and quality of the comonomer.

通过对均聚和共聚乳液进行静置考察，发现无皂高分子胶乳粒子的稳定性与制备方法、共聚单体的结构及性质有著密切的关系。

SO3 is fixed in ashes at 850~900℃, and it exists in Ⅱ-CaSO4 and has different solubility with the natural anhydrite and the plaster calcined at 400℃. It is the first time to prove that the particles of f-CaO is coated withⅡ-CaSO4 by investigating the process of forming f-CaO, the microstructure, spathic type and optic parameter and the hydrating process.

首次从f-CaO的形成过程、颗粒微观结构、晶型和光学参数以及水化历程等方面证明了f-CaO颗粒被固硫产物无水硫酸钙包裹的颗粒特征，f-CaO颗粒被Ⅱ-CaSO4包裹使其水化速度减慢和活性较低；SO3以Ⅱ-CaSO4形态存在和f-CaO颗粒被Ⅱ-CaSO4包裹均对流化床燃煤固硫渣的活性和体积稳定性产生不利影响。

It is the first time to prove that the particles of f-CaO is coated withⅡ-CaSO4 by investigating the process of forming f-CaO, the microstructure, spathic type and optic parameter and the hydrating process.

首次从f-CaO的形成过程、颗粒微观结构、晶型和光学参数以及水化历程等方面证明了f-CaO颗粒被固硫产物无水硫酸钙包裹的颗粒特征，f-CaO颗粒被Ⅱ-CaSO4包裹使其水化速度减慢和活性较低；SO3以Ⅱ-CaSO4形态存在和f-CaO颗粒被Ⅱ-CaSO4包裹均对流化床燃煤固硫渣的活性和体积稳定性产生不利影响。

Attributed to the spiro structure, the polymer exhibited a very good thermal stability and suppress the formation of aggregating/excimers.

螺结结构的导入，使PTF具有良好的热稳定性，且有效抑制分子堆叠与激发复合体的产生。

In Au-RE systems,there are 13 stoichiometrical intermetallic compounds with RE∶Au ratio 1∶6,1∶5,1∶4,……2∶1,7∶3 and so on. The compounds have about 20 crystal structures with prototype like Au6Ho,Ag3.6Gd,MoSi2,CsCl and so on. The reduced transformation temperatures of various intermediate phases are inversely proportional to their average atomic volume construction.

在Au-RE系中出现有1∶6，1∶5，1∶4，……2∶1，7∶313种化学计量化合物和约20种晶体结构；中间相的简约转变温度与其平均原子体积收缩成反比趋势，且中间相原子体积收缩越大，其稳定性越高。

Chapter 2 is to discuss features of geological environment in mine, including its structure, existence environment, and boundary condition and slope's stability. Restrict reaction of geological environment to mining is stressfully studied.

第二章讨论了矿山工程这一特定工程背景下地质环境的特性，分别从地质环境的建造特征、结构特性、赋存环境、边界条件、边坡的稳定性等方面对地质环境进行了深入而具体的研究，重点讨论了地质环境对于矿山工程制约作用。

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。