寿命

AMOC results reveal that S parameter of three lifetime components in oxygen are all bigger than that in nitrogen atmosphere. These are probably caused by the oxygen making the spin-conversion of positronium atoms.

结合正电子寿命-动量关联谱测量结果，本工作分析了不同气氛下多孔硅样品中电子偶素湮没寿命及动量变化关系，讨论了多孔硅中电子偶素的湮没机制以及气氛对孔径计算理论模型的影响。

The longest lifetime component in PALS results is ascribed to the annihilation of positronium in cavities of PS sample. It is found that 80% of the positrons implanted in PS film have formed positronium atoms. PALS results show that the lifetime of ortho-Positronium has small value when the sample was in oxygen gas medium compared with those in other medium.

正电子湮没寿命谱测试结果表明，样品中存在长达40ns的电子偶素湮没成分，并且进入多孔硅膜层的正电子约有80%形成电子偶素，具有非常高的电子偶素产额；在氧气气氛下，由于气体导致o-Ps发生自旋转化猝灭是使多孔硅样品中电子偶素寿命缩短的主要原因。

Elegans were significantly decreased after exposure to ENIs（p.05）; also the brood size and the lifespan of C. elegans were significantly reduced after exposure to ENIs（p.05）. Moreover, after exposure to ENIs, the lifespan of mev-1 mutant hermaphrodites was shorter than that of wild type（p.05）, indicating that mev-1 gene mutant could result in more sensitivity of the mutant hermaphrodites to ENIs exposure than the wild type.

结果表明：空气负离子暴露可显著加速野生型和mev-1突变型线虫发育（p.05），缩短寿命（p.05），与野生型相比，空气负离子暴露对mev-1突变线虫寿命影响更大（p.05）；空气负离子暴露可显著降低线虫后代数量（p.05），原因可能在于空气负离子暴露显著诱导性腺细胞凋亡的增加（p.05）。

Long Life Up to 8,000 hours longer life than conventional incandescent lamp.

长寿命高达8000小时寿命比传统白炽灯。

Designed service life:≥ 60 thousand hours, 50 times that of incandescent lamp, and 10 times that of gold halogen lamp.

设计寿命指标≥6万小时（正常使用约10年），其寿命是白织灯的50倍，金卤灯的10倍。

Infections such as malaria and septicaemia, which reduces the life span of red blood cells such as malaria and septicaemia, which reduces the life span of red blood cells.

传染病，如疟疾和败血症，从而降低了寿命红血球，如疟疾和败血症，从而降低了寿命红血球。

The value of active energy is determined to be 0.82 eV and mean lifetime in practical operation at driving current of 100 mA and an ambient temperature of 298 K is over 106 h, and high reliability and long lifetime required for light source of FOG are confirmed.

计算出了器件的激活能平均值约为0.82 eV，SLD管芯在室温下的工作寿命超过106 h，可以满足光纤陀螺用光源的寿命要求。对影响SLD管芯可靠性的因素以及管芯的退化机理进行了分析，为研制高可靠性的超辐射发光二极管提供了理论基础。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上，应用多种信号处理手段来分析处理数据，同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨，本文进行了以下几项工作：（1）提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略；（2）提出了基于WVD分布的连续撞击响应信号的分离策略；（3）提出了基于对数谱拟合方法的钢—钢撞击响应求解模型；（4）提出了基于波形分析的非正常燃烧振动信号的诊断模型；（5）提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型；（6）提出了基于小波近似的喷油正时信号中燃烧位置的自动定位；（7）提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略；（8）提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

A accelerated test is conducted for a new product with three stresses level based on ALTA. Results and plots show parameters needed in reliability designs can be calculated rapidly and accurately through this method.

通过定量加速寿命测试数据分析）软件ALTA对某新产品的三组恒定应力加速寿命试验所获得的数据做了计算机辅助仿真分析。

The use of mechanical seals, and do not have to fill, automatic mind, long life, wide parameters (pressure 15-30 kg / cm 2, temperature -50 ℃-450 ℃, to speed 0-500 /, media: conducting oil, steam , Water, air, etc.), is to address run, run, drip, leak, energy conservation, improve the working environment ideal for sealing components conducting oil rotating series of joint: in-house and the spherical shell after fine grinding process, using a spring 30WACr2VA tungsten chromium Vanadium alloy spring steel from refined, and the introduction of Japanese cedar trees machinery will be silver-impregnated graphite high temperature seals from the assembly, with the temperature effects, and life than the original, high-temperature range of 30%.

该产品采用机械密封，不必填料，自动同心，使用寿命长，参数广（压力15-30㎏/㎝2，温度-50℃—450℃，转速0—500转/分，介质：导热油、蒸汽、水、空气等），是解决跑、冒、滴、漏，节约能源，改善工作环境的理想密封部件（导热油系列旋转接头：壳体内部和球面经过精磨加工，弹簧采用30WACr2VA 钨铬钒合金弹簧钢精制而成，并引进日本柏木机械株式会银浸渍石墨高温密封件组装而成，具有耐高温之特效，而且使用寿命较原来中、低温系列高30％。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。