稳定性

At the same time,it also has high radiolysis stability. When absorbed dose reached 1 MGy,D declined remarkably. The addition of diluents resulted in a decline of radiolytic stability.

TBOPDA具有较好的辐解稳定性，当纯萃取剂的吸收剂量达到1MGy时，萃取分配比有明显下降；稀释剂的加入会使萃取剂的辐解稳定性下降。

Through researching the weight changes and acidity of red flesh pumelo stored in normal temperature, according to the index of color difference and researching the affecting factors of the juice's color: citric acid quantity, amount of added sugar, heating temperature and time, exploring the typical pigment and its stability of red flesh pumelo's pulp by using UV-VIS spectrum and exploring the color stability of red flesh pumelo's juice during stored.

通过分析红肉文旦常温贮藏过程的重量和酸度的变化；以色差为指标研究柠檬酸用量、加糖量、加热温度及加热时间对果汁颜色的影响；采用紫外可见吸收光谱法探讨红肉文旦果肉特征色素及其稳定性；以加热贮藏探求红肉文旦果汁产品在贮藏过程的色泽稳定性。

We analyzed the factors and mechanism affected the stability of the laser polarizers, and planed out the methods to improve its stability.

通过对影响偏振膜器件稳定性的各种因素及其物理机理的分析，提出了改善其稳定性的方法。

Optimized BP network model for predicting igniting temperature of pulverized-coal based on genetic algorithm;2. A review and elementary discussion of powder and pulverized-coal charge;3. Paper discussed flame ignition stabilization analysis of N125MW direct current burner in pulverized-coal boilers of solid state discharge.

以N125MW直流燃烧器固态排渣煤粉炉燃烧着火稳定性为研究对象，根据煤粉气流着火方式以及对影响煤粉气流着火因素的分析，提出提高煤粉气流着火稳定性以及低负荷燃烧不投油的控制措施，从而保证了煤粉的稳定着火，以保证锅炉安全稳定运行。

Based on ODEs and FDEs, some definitions about the stability of delayed differential inclusions are introduced.

这些结果是常微分方程、泛函微分方程以及微分包含稳定性理论的推广和完善，在某种意义下填补了时滞微分包含稳定性理论的一些空白。

Photoelectric materials with organic-inorganic hybrid perovskite structure are novel molecular-scale composites through organic and inorganic compounds self-assembling.The layered perovskite framework comprised of metal halide octahedra provides a distinct set of advantages including good electrical mobility, mechanical and thermal stability,while organic component offers a number of useful properties including structural diversity and ease of processing et al.

有机/无机杂化钙钛矿结构光电功能材料是通过有机分子与无机分子的自组装形成的一类新型的分子复合晶体材料，无机金属卤化物构成的钙钛矿结构提供了有序的载流子传输网络并提高杂化材料的机械稳定性和热稳定性，而有机组份的功能性和易加工性使杂化材料具有光电功能和大面积成膜性能。

AbstractObjectives1 Correlate bone mineral densityto vertebral compressive strengths.2 Consummate the technique for percutaneous polymethylmethacrylate vertebroplasty and observe the pattern of PMMA imaging distribution.3 Determine the strength and stiffness of osteoporotic with or without vertebroplasty with PMMA bone cement.4 Correlation of BMD,insertion torque and pull-out strengths of pedicle screws.5 Ascertain whether augmentation with PMMA bone cement can enhance pedicle screw fixation in the osteoporotic spine.6 Ascertain whether augmentation pedicle screw fixation with PMMA bone cement can enhance the stability of unstable thoracolurner burst fractures of osteoporotic spine.

目 的1、测试椎体压缩强度，分析强度与骨矿物质密度（bone mineral density，BMD）的相关关系。2、观察经皮椎体成形术后聚甲基丙烯酸甲脂（polymethylme- thacrylate，PMMA）骨水泥在椎体内的形态学分布及影像学表现。3、比较PMMA骨水泥骨质疏松椎体成形术前/后椎体最大抗压力和压缩刚度的变化。4、分析椎体BMD、螺钉最大旅入力矩和最大拔出力三者之间的关系。5、分析PMMA骨水泥强化骨质疏松椎弓根螺钉后的螺钉的最大轴向拔出力和拔出刚度的变化。6、评价PMMA骨水泥强化骨质疏松椎弓根螺钉脊柱内固定对不稳定型胸腰椎损伤的即刻稳定性和反复载荷后的稳定性。

Firstly, based on the sliding mode control and backstepping technique, a new attitude tracking controller is derived to control the attitude motion of spacecraft, the stability of the system is analyzed via Lyapunov method and the reaction wheel dynamics is also considered from the real applications point of view. The whole design process is divided into two steps: the first step is to use sliding control technique to design suppositional adaptive variable structure controller; and the second step is to design attitude tracking controller based on SMC and backstepping technique. Numerical simulations are performed to show that both tracking maneuver and vibration suppression can be accomplished effectively.

首先，采用自适应后步法结合主动振动控制技术设计了姿态跟踪鲁棒控制器，基于Lyapunov方法分析了系统的渐近稳定性；在此基础上，显性地考虑了执行机构动态特性问题，将整个设计过程分为两个步骤：第一步采用滑模控制技术设计了变结构虚拟控制器，给出自适应控制律的设计方法；第二步，将后步法与滑模控制技术相结合，设计了姿态跟踪鲁棒控制器，给出飞轮电压的输入算法及稳定性分析；最后，将提出的控制方法应用于挠性航天器的姿态跟踪控制，通过数值仿真对所提方法的可行性与有效性进行分析和验证。

The results showed that AB-8 resin has the best performance of absorbing the brown pigment. 50% ethanol is the optimal desorption agent. After being used repeatedly 20 times,the adsorption capcity is only at a loss of 2.63%. The pigment is stable in acid solution,and the light,heat and common food additions also have no evident influences on its stability. So the pigment from walnut shell can be used a...

结果表明AB-8树脂对核桃壳棕色素有较高的吸附量，用50%乙醇为洗脱剂得到产品质量好，色价高的核桃壳棕色素；该色素水溶性好，在酸性条件下具有较好的稳定性，有一定的耐光性，在适当温度下对热稳定性较好，对低浓度的常用食品添加剂较稳定，是一种价廉宜得、安全可靠，使用方便的天然植物色素，在食品工业中有一定的开发利用潜能。

At first, the color stability of different vat dyestuffs as dyed-reagents for viscose was studied. According to the results of experiments, we get to know that the conditions all will influence the color stability of vat dyes, such as the alkali with high concentration, oxidizing with alkali, and soap-washing.

本文首先研究了不同还原染料应用于粘胶纺液着色纺丝加工时的色光稳定性，讨论分析了高浓度碱剂、带碱氧化以及皂洗等工艺条件对还原染料色光稳定性的影响。

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。