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Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容:一、选取了常见的热膨胀系数大的材料制作封装元件,经过多次一80℃到80℃反复测试,封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷,封装材料具有良好的温敏稳定性及复用性,与光纤相容性较好;二、对光纤光栅进行简单、实用的封装处理,就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验,得出了初步的结论;三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比,从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析,在大量实验数据分析结果的基础上,总结出哪种材料封装效果更好,以及如何有效的减小实验误差。

We first got the PML equations by making the radius complex, and then proved that the sesquilinear form in the weak formulation of the PML problem satisfies the Grding inequality under the hypothesis of the absorption factor, and further could prove the existence and uniqueness of the solutions of the PML problem, finally, we gave the numerical experiments which show that this method is feasible to a certain extent.

首先通过复化极径得到PML方程,然后在关于吸收参数的假设下,证明了PML问题变分形式中的半双线性形式满足Grding不等式,进而证明了PML问题解的存在惟一性,并给出了数值实验。实验结果表明,该方法有一定的可行性。

We first got the PML equationsby making the radius complex, and then proved that the sesquilinear form in the weak formulation of the PML problem satisfies the Garding inequality under the hypothesis of the absorption factor, and further could prove the existence and uniqueness of the solutions of the PML problem, finally, we gave the numerical experimentswhich show that this method is feasible to a certain extent.

首先通过复化极径得到PML方程,然后在关于吸收参数的假设下,证明了PML问题变分形式中的半双线性形式满足Garding不等式,进而证明了PML问题解的存在惟一性,并给出了数值实验。实验结果表明,该方法有一定的可行性。

BN composite has a great application potential owing to its machi...

〓-BN复相导电陶瓷具有优良的机加工性和方便的电性能可设计性等,其应用前景十分广阔。

Based on the wave equation in the acoustic fluid space and the theory of thin-wall structure, the uncoupling error in low frequency range about the nonsymmetrical coupled structure-acoustic analysis equation is studied.

该对称模型特征值的非负性及特征问题的可降阶性也在本文中进行了深入研究,同时指出了在复模态分析中应当注意的问题;(2)由声空间波动方程和薄板理论出发,对非对称声振耦合方程的低频解耦误差问题进行了研究。

This paper also discuss extendable, usable, reusable of the method.

并对其可扩充性、易用性、代码复用进行了讨论。

The software is base on Object Oriented technology, hence, becomes more reusable and more extendable.

系统的软件充分运用面向对象技术,提高了软件的易复用性和易扩充性,提高了软件开发的效率。

The property of Ba/Zn liquid complex heat stabilizer doped with larium isooctoate was studied.By using the electronic property of La 3+ to synergise with barium isooctoate and zinc isooctoate,both the short term and long term stabilities of the complex stabilizer were improved,which was of benefit to the improvement of the processability and weather resistance of PVC.

研究了异辛酸镧掺杂钡锌液体复合热稳定体系的性能;利用La3+的电子性与异辛酸钡、异辛酸锌进行协同作用,提高了复合液体热稳定剂的初期及长期稳定性,改善了聚氯乙烯的加工性能及耐候性;通过热烘法、刚果红法、热重分析及紫外光谱考查了稀土含量、复配助剂对镧/钡/锌三元体系热稳定性的影响。

NASH rats were gavaged with the water extract of raisin tree seed for 2 weeks. Fatty change and inflammation in the liver was observed pathologically and serum alanine aminotransferase, aspartate aminotransferase, tumor necrosis factor α, interleukin 8 (IL8), fatty acid, insulin sensitivity index, and malondialdehyde and superoxide dismutase in liver tissue were measured or calculated after the administration. Another group treated with Tiopronin combined with Essentiale Forte served as the control group.

用高脂饲料诱导非酒精性脂肪性肝炎大鼠模型8周后,灌服枳椇子水提取液治疗2周,观察对模型大鼠肝脏病理脂肪变、炎症程度及血清ALT、AST、TNFα、IL8、FFA、胰岛素敏感性指标和肝组织MDA、SOD的影响,并与凯西莱联合易善复治疗进行比较。

According literature above,its considerd that the former is proper to be interpreted by means of multiple alleles hypothesis,and the fertility heredity of the latter is appropriate to be interpreted using inhibition.

根据大白菜及其近缘芸薹属作物核不育材料育成的纯合两型系和杂合两型系可育株间互交F~1|可育株自交,其子代可能出现无育性分离情况或者产生13∶3两种表型的育性比资料,认为前者宜用复等位基因假说解释,而后者用抑制作用解释为妥。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

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