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In this study, main chain of 4,4'-Biphenol combine different side chains to discuss polymer ~ polymer which synthesizes by the difference of structure of 1-Bromobutane、1-Bromoocatane、1-Bromododecane.To examinate luminance property and judge the correction for the structure of polymer ~ polymer by FT-IR、NMR-1H、UV、PL, in the meanwhile,to investigate into radiation wavelength under the condition of different side chains.

中文摘要 1。本实验是利用4,4'-Biphenol为起始物,与Allyl bromide反应,产生丙烯基芳基醚化合物,再利用克莱森重排反应将丙烯基转至邻位,然后在将OH基转变为不同链长的烷基醚合成出聚合物耤I),以FT-IR、NMR-1H、UV、PL测定其发光性质及判断产物结构是否正确,并探讨化合物在不同侧链之条件下,比较其放射波长。

In chapter 9, empirical Bayes two-sided tests problem for failure function of exponential distribution are studied.

论文第九章中研究了Ⅱ型截尾情形下指数分布危险函数的经验Bayes双侧检验问题。

The non-stationary index of automobiles\' supporting force response under side wind is analyzed, which confirms the reasonableness of stationary assumption in dynamic reliability analysis.Thirdly, joint distribution of wind speed and wind direction is established based on the extensive extreme value distribution, which is used for reliability analysis of bridge traffic safety.

其次提供了Fourier变换识别抖振响应频谱失真的实例,采用Hilbert-Huang变换分析桥梁抖振响应的时频特性,从结构动力学角度探讨了响应非平稳性的原因,从风工程的角度探讨HHT变换分量的物理意义,并分析侧风作用下桥上汽车支撑力响应的非平稳指标,为动力可靠度分析中平稳性假定的合理性提供必要的论证。

L of BrdU-labeled human embryonic NSCs at 1×109 /L were implanted into infarction area at 0.8 mm from the anterior fontanel caudal, 1.2 mm from right lateral side of the midline after 24 hours and 3.0-3.2 mm below the cerebral dura mater.

于造模后24 h,以前囟尾侧0.8 mm,中线右外侧1.2 mm为注射点,每只大鼠移植行BrdU标记的1×109 L-1人胚神经干细胞悬液10 μL,深度为硬脑膜下3.0~3.2 mm。

In this situation we need to step the right footboard of rudder and rotate the column to the left in compensate for the left crosswind affection.

在左侧风情况下,我们需要踩有舵,并向左控制操纵杆,进行侧风修正。

When a fighter aircraft or missile flies at high angle of attack,asymmetric vortexes are produced from the forebody and induce strong side force and yawing moment.

飞机或导弹在大迎角下飞行时会形成非对称涡,从而产生很大的侧滑力和偏航力矩。

When a fighter aircraft or missile flies at high angle of attack, asymmetric vortex es are produced from the forebody and induce strong side force and yawing moment.

飞机或导弹在大迎角下飞行时会形成非对称涡,从而产生很大的侧滑力和偏航力矩。

Slender body is a widely used forebody configuration for modern advanced fighters and tactic missiles.

现代先进战斗机和战木导弹常具有细长前体,大攻角条件下前体背风面会形成非对称涡结构,从而产生很大的侧向力和偏航力矩,这会严重影。。。

In 13 cases(28.26%),the long-line or triangle shaped infarcts areas usually located at marginal zones between the superficial and deep territory of the middle cerebral arteries in the basal ganglia and posterolat eral angulus frontalis.

皮层下型13例,占28.26%,病灶在大脑中动脉皮层支和深穿支供血的交界区,多位于侧脑室额角后外方和基底节,呈三角形或长条状。

Transverse shear strain is introduced into the strain vector to take transverse shear deformation into account. To avoid shear lock,the one point Gauss integral method is used to compute the stiffness.

复合材料旋转壳体是航空、宇航和造船等常采用的结构形式之一,这类结构常常在轴压和侧压下工作,准确预测此类结构的屈曲临界载荷和破坏模式,具有重要的工程意义[1]。

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年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。

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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.

老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。