查询词典 ion migration

X=0, 11, 22, 33, 44, and 55 borophosphate glasses series have investigated, and it is found that:(1) both the covalency bonding between Yb〓 ion and oxygen ion and the asymmetry in local structures surrounding Yb〓 ion have strong effects on integrated absorption cross section ∑〓 and emission cross section σ〓 of Yb〓 ion in borophosphate glasses;(2) the borophosphate glasses and borate glasses appear superior as Yb-gain media to the phosphate glasses, although the phosphate glasses have been demonstrated as the most appropriate Ndgain media.

在第二章中，我们对〓（x=0，11，22，33，44，和55）系列的掺Yb〓硼磷酸盐玻璃的吸收光谱和发射光谱特性进行了研究，结果表明：（1）在硼磷酸盐玻璃中，Yb-O键的共价键成分和Yb〓离子周围的近邻结构的对称性两个因素对积分吸收截面∑〓和受激发射截面σ〓的影响都很大；（2）尽管磷酸盐玻璃是最合适的掺钕激光增益基质，但是作为掺镱的激光增益基质，硼磷酸盐玻璃和硼酸盐玻璃都要优于磷酸盐玻璃。

It is shown that in solution the ion pairs can exist in such different forms as contact ion pair, solvent-separated ion pair or free solvated ions. Solvent polarity influences not only the spectral properties of different forms, but the equilibrium between them as well, leading to change of physicochemical properties of the ion pairs.

观察到在溶剂中离子对可以各种形式存在，如紧密离子对、溶剂分隔离子对或溶剂化的自由离子，溶剂的极性不仅影响各种存在形式的光谱性质，而且影响它们之间的平衡关系，进而影响离子对体系的物理化学性质。

Ion mobility spectrometry ; ion mobility ; drift tube ; reactant ion ; product ion

离子迁移率谱；离子迁移；漂移管；反应物离子；产物离子

Improvement of MT migration tomography technology Based on the immanent relationship between tomography purpose and suitable frequency segment selection, we raise an entire frequency segment multi-parameter tomography scheme of MT finite difference migration. We establish a mathematical relationship among apparent electromagnetism reflectance, migration reflectance, background resistivity and the true resistivity distribution. After the introduction of TE/TM mode superpose rate, we carry out the associated resistivity tomography of two polarization mode to adapt the practical data interpolating situation.

大地电磁偏移成像的改进：针对频段选择和成像效果的内在关系，提出全频段、多参数有限差分偏移的解决方案；构建视反射系数、偏移反射系数、背景电阻率与实际电阻率分布的数学关系实现偏移电阻率成像；同时引入TE、TM模式加权因子以实现两个模式的联合偏移电阻率成像，更好的适应解释工作需要。

To address the problems that full volume 3_D DSR equation migration could meet with in production application, we present a feasible common_azimuth prestack τ migration approach based on the theory of crossline common_offset migration.

为了克服其全三维偏移算法在实际应用中可能面临的困难，本文采用稳相近似，在crossline常炮检距偏移理论基础上推导了实用的共方位角叠前τ偏移方法。

But normal pre-stack migration imaging method could not meet the need of exploration in great fault with big obliquity and strong anisotropism glutenite body.Pre-stock time migration processing technology could be applied in studying on pre-stack migration pre-processing technology, establishing final velocity model and electing key parameters.

采用叠前时间偏移处理技术，开展针对性的叠前预处理技术、精细的速度模型建立和关键参数的合理选取等研究，三维叠前时间偏移处理较常规三维叠后时间偏移处理获得了较高质量的成像剖面，且输出的道集可以用于砂砾岩体储层描述研究。

Therefore, based on the seismic data of Inline 146 and Inline 166 in Jianghan Oilfield, conventional analysis is made with GeoDepth software. The result shows that compared with post-stack rime migration, pre-stack depth migration profile has many advantages, including better fault imaging, accurate migration horning and better effect of complex structural imaging.

因此，针对江汉油田的Inlind146、Inline166的地震资料，经GeoDepth软件的常规分析处理，其结果表明，叠前深度偏移剖面较叠后时间偏移有许多优点：断层成像效果好、偏移归位准确、复杂构造成像效果好等。

It consider that region government should follow the principles including ecological sustainable development, land supply effective, perfect basic infrastructure and social service system, which is the countermeasure for selecting place to migration. To do well plan, construction and community introjecting is the scientific construction for the place of migration. To make the implement procedure criterion, to guarantee the money supply, to pay attention to migrator work and life is the countermeasures to optimize region government action for ecological migration.

认为遵循生态持续发展、土地有效供给、基础设施建设和社会化服务体系完善、城镇区域辐射等原则是科学选择生态移民迁入地的基本对策；做好迁入地规划、建设和社区整合是科学建设迁入地的对策；科学组织实施、保障资金、关注移民人口生产生活是优化地方政府生态移民行为的主要对策。

Due to the effect of various geologic settings, different gas has different migration characteristics and mainly there are authigenic and self accumulating gas, gas of lateral migration and gas of vertical migration.

由于受多种地质因素的影响，各类天然气呈不同的运移特征，主要表现为自生自储式、侧向运移式和垂向运移式。

Beamlet sources have strong local and directional character and can easily accomplish local illumination and migration. Besides, they provide better migration results than conventional migration methods.

小波束源有很强的局部性和方向性，它可以很容易的实现局部照明和偏移，除此之外，它的偏移效果也要好于常规的偏移方法。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。