通过老化

The performance of this material system is demonstrated by ageing tests.

材料系统的性能是通过老化测试体现出来的。

Therefore, based on documents reports, through contrastive observation of 20-month-old natural senile mice, this study has confirmed that the anaplasia of subacute senile model mice was obviously similar to the features of 20-month-old naturally physiological senile mice. Mice in both two groups displayed dull color patterns, slow movements, insensitive responses and decrease of growth rates of body weight; hepatic and brain tissues in the mice presented senile features of sero-enzyme such as decrease in SOD activity, increase in content of lipid perhydrides and so on.

为此，本研究在文献报道基础上，通过与20月龄自然老化鼠的对比观察，证实：亚急性衰老模型鼠的退行性变化与20月龄自然生理性老化鼠特征的相近之处鲜明可见。2组均出现毛色暗淡，少有光泽，动作迟缓，反应不灵敏，体重增长率下降；肝、脑组织出现SOD活力下降，脂质过氧化物含量增高等血清酶学的老化特征。

Today though, we also are aware of the many health benefits of cremation as it is an effective means of eliminating the spread of disease through decay.

今天，虽然，我们也都知道许多健康的好处火葬，因为它是一种有效的手段，消除疾病的蔓延，通过老化的问题。

More than 50 GaAs/GaAlAs High Power Single Quantum Well Semiconductor Lasers are aged. The threshold current decreases during the early aging (first 520 h) and the largest decrease is 57 mA. From the aging result of more than 1000 h at constant current, we find that output power increases during the early aging , and then decay slowly according to exponent law.

通过对50余只808nm的GaAs/GaAlAs高功率单量子阱远结半导体激光器的老化实验观测，在老化初期（前520h），阈值电流随老化时间的延长而下降，下降幅度高达57mA，从1000h多的恒流电老化结果可以看出，器件的输出光功率在老化初期有所上升，随后，表现出按指数规律缓慢下降的行为。

In this paper,the relation between the thermal endu- rance of insulation and the exposure temperature is analyzed from the point of view of chemical dynamics.

本文从化学动力学的观点分析了各种情况下绝缘的热老化寿命与温度的关系，通过二种绝缘漆的热老化试验研究了温度、热冲击、潮湿对热老化寿命的影响，并在涤纶薄膜的热老化过程中测定了电性与机械性能的变化。

Three types of base asphalt and six SBS were used to produce SBS modified asphalt. The interaction of SBS modified asphalt was discussed in different states between the base asphalt and SBS based on their compositions. Through the traditional tests, such as penetration, soften point and ductility, and US SHRP tests, the results indicated that influences to affect the temperature susceptibility, high and low temperature performance, aging characteristics are base asphalt, SBS types and their dosages. The functions of penetration to viscosity and complex shear modulus G~* to complex dynamic shear viscosity η~* were set up, and then theviscosity-temperature susceptibility of wide temperature span and the calculation method of low temperature viscosity were obtained."Process" evaluation criterions, high grading critical temperature T_ and low grading criticaltemperature T_ , were suggested according to the high and low temperatureperformances of SBS modified asphalt. Using the experience of Repeated Creep and Recovery Test for Binders, a new high-temperature evaluation index,modification rutting factor G~*~(-9) was obtained. The results after RTFO and PAV aging indicated that traditional tests didnt differentiate base asphalt and SBS modified asphalt, but dynamic mechanics temperature spectrum and G*-5 black chart clearly reflected the influence of aging to the SBS modified asphalt. With the IR and GPC tests, the reason of aging to the SBS modified asphalt were due to asphalt phase oxygenated and SBS phase depredated.

论文选择3种油源的基质沥青和6种SBS改性剂制备改性沥青，通过分析基质沥青和SBS改性剂的组成结构特点，得出了不同状态下SBS改性沥青的SBS与基质沥青的相互作用机理；通过针入度、软化点、延度等常规试验以及美国SHRP试验，分析了基质沥青、SBS改性剂类型与剂量对SBS改性沥青的温度敏感性、高低温特性及老化特性的影响；建立了针入度-粘度、复数模量G~*-复数粘度η~*的换算关系，得出了宽温度域的粘温指数VTS和较低温度下粘度的计算方法；通过高低温性能分析提出了&过程&评价参数高温等级温度T_和低温等级温度T_；借鉴重复恢复与蠕变试验研究成果，得到了SBS改性沥青高温评价指标改进型抗车辙因子G~*~(-9)；RTFO和PAV老化后的性能试验结果表明，常规试验难以区分SBS改性沥青与基质沥青的差异，而动态力学温度谱、G~*-δ黑斑图可以反映老化作用对SBS改性沥青的影响，且通过IR试验和GPC试验得出SBS改性沥青老化是沥青相的氧化和SBS的降解共同引起的；通过不同温度下SBS改性沥青混合料的旋转压实SGC试验，根据粘度与剪变率的关系，提出用剪变率60(1／s)测试SBS改性沥青的粘温曲线，并按照0.17±0.02Pa.s和0.28±0.03Pa.s确定施工温度。

It is considered in this paper that the light and heat oxygen resistance ageings of silicone acrylate resin are better than those of normal acrylic and polyurethane resins, through the theoretic investigations into the reaction mechanisms of the light and heat oxygen ageings of high molecular polymer and contrasting, when exposed to light and under a high temperature, the changes in colour,shape, tensile strength and elongation of Silicone Acrylate Resin DX 8501 to the normal acrylic and polyur...

本文通过对高分子聚合物的光氧老化、热氧老化的反应机理的理论探讨和对DX8501硅丙树脂、普通丙烯酸树脂、普通聚氨酯胶膜在紫外光照射下和高温条件下的颜色、形态、抗张强度、伸长率的变化情况对比，认为硅丙树脂的耐光氧老化和耐热氧老化的性能优于普通的丙烯酸树脂和普通的聚氨酯。表3，参考文献8

The ageing properties of MMT/SBS modified bitumens composites are ecaluated by the Rolling Thin Film Oven Test, the pressure ageing vessel and long-term thermal oxidative ageing.

通过旋转薄膜烘箱老化试验、压力老化试验、长期热氧老化试验对蒙脱土/SBS改性沥青复合材料的老化性能进行了评价。

The results showed that changes of content of saturants, aromatics and asphaltenes were similar during the three kinds of aging test, i.e. the saturants content almost kept invariable, the aromatics content obviously decreased and the asphaltenes content remarkably increased.

本文通过室内模拟加速老化试验（短期热氧老化试验、长期热氧老化试验和长期光热老化试验）和对沥青的四组分分析，研究了沥青在拌和、铺筑和使用过程中光氧、热氧老化机理。

The possibility of surface contamination moving inside silastic is studied via energy spectrum analysis.

进而通过对高、低场强区材质的断面作扫描电镜，对比了材质在电老化、紫外老化因素下表现出的微观结构特征；通过对比伞裙侧表面和上下表面的微观结构，揭示了电老化和电烧蚀的发生规律；通过能谱分析，探索了表面积污向材质内部迁移的可能性。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。