查询词典 conic polar

The Diels-Alder cycloadditions of [60] fullerene for preparation of optical limitingmaterials are discussed in chapter 3 and 6. Soluble cycloaddition derivatives of 〓aresynthesized by the reaction of 〓 with indene,1,1'-biindene andcyclopentadiene derivatives.〓Particular, the Diels-Alder cycloaddition of 〓 with1,1'-biindene under controlled conditions affords the stable monoadduct 〓〓of novel structure, which was confirmed by HPLC, FTIR, FD-MS,〓NMR,〓 NMR, HMQC and HMBC spectra, Its two bridgehead cage carbons resonate at70.91ppm, The 〓 NMR spectra showed 38 lines consistent with the 〓 symmetryassociated with [6,6] addition. The 〓 shows similar optical limitingproperties to that of 〓 in toluene for 8ns laser at wave length 532nm. Moreover, thehigh solubility of this adduct in polar solvents such as THF, acetone enables itsincorporation into sol-gel glass matrix. The thin films prepared via the sol-gel methodshow improved OL behaviour compared to those of 〓. The langmuir-Blodgett filmformation and uv-visible absorption of 〓 are also investigated. LBmonolayer of this compound is prepared on the air-water interface at 〓 mol/l. In chapter 4, three water-soluble derivatives of [60] fullerene: fullerol(1), theaddition product (2)of fullerol (1)with polyvinylpyrrolidone and fumaric acidderivative of 〓(3) are synthesized and characterized.

通过Diels-Alder环加成反应，用茚〓和1，1'-联茚〓及取代茂合成了一系列可溶性的〓环加成衍生物，发现可控制反应条件，使1，1'-联茚与〓反应，并高产率地得到具有新颖结构的单加成物，用HPLC、FTIR、FD-MS 及〓、HMQC、HMBC等多种波谱技术对其结构进行表征，测得它的两个〓杂化的桥头碳的化学位移为〓ppm，证明生成的衍生物为6∶6闭式环加成，〓NMR谱中共给出38个信号，表明〓联茚衍生物分子具有〓对称性；在波长532nm，脉冲宽度8ns的激光下，〓联茚衍生物的甲苯溶液的光限幅性能与〓的甲苯溶液相近，由于〓联茚单加成衍生物熱稳定性好，在四氢呋喃，丙酮等极性溶剂中溶解性好，能分别均匀地掺入溶胶-凝胶中，已发现它的溶胶(so1)光限幅性能优于纯〓的光限幅性能；使用Langmuir-Blodgett技术将〓联茚衍生物在空气和水的界面进行了LB单层膜和多层膜实验以及UV-Vis吸收谱研究，通过等温压缩曲线测试，证明浓度为〓〓时，〓联茚衍生物能够形成单层膜。

Non--- plastic film in HighVoltage excitat, ramolecular of charge displaced and in surface induced charge, the presence of induced charge with polar envirogluvtm molecular production library of attractive, this business card printing and membership card making ink layer fastness of must have a certain value.

非导电性塑料薄膜在高压电场作用下，分子内的电荷发生位移，而在表面形成感应电荷，这种感应电荷的存在就可与极性的油墨分子产生库化吸引，这对制卡和会员卡制作墨层牢度的提高也是有一定作用的。

The Polar intense relation of rational subject and aesthetic subject, potentially indwell the fundamental of modern subject, which is being constantly persued by the project of the Enlighten.

而其"浪漫"精神的种种歧义与精神指向的不断变迁，则具体的展现出了含混主体的内部随着整个现代性的进程而引发的愈来愈烈的精神紧张与争斗，这可清晰的表征为理性乌托邦与审美乌托邦、工具理性意识与身体领域之间的纠缠与决裂，结果是含混主体内部中的感性主体、审美主体、欲望主体凸现在个体的日常生活层面，最终也就导致了当下社会中日益陷入的普遍的世

Lyman-# radiation pressure can reverse the infall in the polar regions when the protostar grows to 20 30M, but cannot significantly reduce the accretion rate.

当星坯的质量增长至20-30太阳质量的时候，赖曼alpha辐射压可以使极区的气体下落反转，但是不会把吸积率降低太多。

Finally, the infimum is acquired of Hausdorff dimensions of its polar sets by means of constructing a Cantor-type set to connect Hausdorff dimension and capacity.

同时通过一个特殊的Cantor型集的构造将维数与容度巧妙地结合起来，得到了广义Brownian Sheet极集的Hausdorff维数的下确界。

The electrical properties of natural rubber natural rubber non-polar substances, is a good insulating material.

天然橡胶手轮的电性能天然橡胶手轮是非极性物质，是一种较好的绝缘材料。

The differences of the static electric energy and the elastic energy in different directions of spontaneouse polarization in polar regions are calculated by using numerical integral and boundary element method.

采用数值积分和边界元方法，通过计算机计算了极性微区在极化方向不同时，其间静电耦合能量和弹性耦合能量的差异。

Aiming at solving these problems,the inverse log-polar transformation based on sub-pixel interpolation is presented.

针对这个问题，文章提出了子像素反向变换算法，新算法下的变换阵图像具有良好的连续性，同时减弱了马赛克现象。

A simulation study on the effects of particle precipitation on the polar ionosphere was carried out in this paper.

1前言极区电离层通过对流电场、沉降粒子、场向电流和磁层紧密耦合在一起，在太阳风-磁层-电离层的耦合过程中起重要作用。

The results are as follows:① The mean spatial position of the tropical tropopause and the polar tropopause approximately consistent with heating fields of the tropopause, and isopiestic, isotherm present zonality and appear wave motion at the middle and high latitude . The tropopause temperature and pressure are not symmetrical between two hemispheres.② The interannual variations of the tropopause zonal-mean pressure and temperature anomalies are remarkable.

结果表明：①热带对流层顶和极地对流层顶的平均气压场的空间位置和热状况大致吻合，并存在空间波动性，两半球对流层顶的温压场具有显著的非对称性；②对流层顶的纬向气压与温度距平场都具有不同尺度的年际和年代际变化，两极地区对流层顶的温压场最不稳定，两半球中纬度地区的时间演变尺度存在明显差异。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。