磁学

With Yangtze delta tidal flat as an example, through the analysis on the magnetic characteristics of tidal flat sediment and the study on the space distribution of heavy metal elements, this thesis discussed the impact to Shanghai sea bank brought by heavy intensity development, and the interrelation between sediment power effect and heavy metal pollution space distribution. Utilizing the advantage of artificial intelligence neural network, in conjunction with environmental chemical analysis, from the angle of view of sediment magnetic characteristics, it analyzed the connection mechanism between magnetic mines and heavy metal element within tidal sediments, and built a quantitative magnetical diagnosis model, in attempt to calculating the tidal heavy metal pollution status from the magnetic measurement data of sediments and assess it's impact to the environment.

中文题名长江口潮滩重金属污染的磁诊断模型研究副题名外文题名论文作者许羽导师俞立中教授学科专业自然地理学研究领域\研究方向资源与环境信息系统学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数111页关键词长江口潮滩沉积物环境磁学重金属污染馆藏号BSLW /2001 /X145 /11 本文以长江口南岸潮滩为例，通过对潮滩沉积物磁性特征的分析、重金属元素空间分布的研究，探讨了上海滨岸带高强度开发对潮滩环境质量的影响，以及沉积动力作用与重金属污染空间分布格局的联系。

Dynamic magnetic therapy: combination of traditional Chinese medicine health study, use of modern magnetism of the latest achievements in overcoming the traditional static magnetic magnetotherapy all the disadvantages of making full use of dynamic alternating magnetic field, greatly increased the permeability of the magnetic field so that The role of magnetic field greatly increased the depth, combined with mechanical massage and physical therapy to achieve the role of three-dimensional.

动磁疗法：结合中医养生学，运用现代磁学的最新成果，克服了传统磁疗中静磁的各种弊端，充分利用动磁的交变场效应，大大增强磁场的渗透性，使磁场的作用深度大大增强，同时结合机械按摩，达到立体理疗的作用。

We prepared a series of samples with structure of NiFe/FeMn,and obtained the wellexchange bias effect.

制备了一系列样品并测量其结构和磁学性质。

Single-crystalline cerium orthovanadate (CeVO4) nanorods are synthesized successfully by Na2EDTA-assisted hydrothermal method. The products are characterized using X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy and superconducting quantum interference device.

以Na2EDTA为模板导向剂，利用水热法成功合成了单晶CeVO4纳米棒，使用X射线衍射仪、透射电镜、高分辨透射电镜和超导量子磁强计等对产物的结构和磁学性能进行了表征。

Results show that the rock magnetic parameters well correspond to the paleoclimatic variations and sedimentary environmental changes.

结果表明，磁学参数较好地记录了古气候变化及沉积环境变化的信息。

In all such complexes, the metal phosphonate with special optical and magnetic properties has attracted great interest in the last decade.

在众多的功能配合物中，一类具有特殊光学、磁学性质的金属膦酸配合物的研究尤其引人注目。

The crystal structures, photophysical and electrochemical properties of thesecomplexes have been further studied in detail.

本文合成了几个系列的多吡啶化合物及其部分金属配合物并研究了它们的光、电、磁学性质及生物活性等。

This work is mainly concerned with molecular magnetism of polynuclear complexes and supramolecular crystal engineering.

本论文围绕多核配合物的分子磁学和超分子晶体工程这两个最为活跃的前沿研究领域，选用大环配体tacn（1，4，7-三氮杂环壬烷）和含有外延桥的双草胺。。。

In order to further enrich and extend the studies on functional complexes, the molecular magnetism, kinetics of catalytic hydrolysis and biological activities of bridged polynuclear complexes have been studied systematically in this dissertation.

本论文围绕桥联多核配合物的分子磁学、催化水解动力学及生物活性等前沿课题进行了较深入和系统的研究，为进一步丰富和拓宽功能配合物的研究提供了一定的理论依据和某些有用的信息。

Transition metal Pyrazolyl ligands have attracted considerable attention as in catalysis, magnetic coupling, biological mimicry, electron transfer, optic-physics area because of pyrazolyl ligands have luxuriant self-assembly chemistry and as a kind of multifunctional organic ligand.

吡唑类配体是一种较复杂的多功能有机配体，有着丰富的自组装化学，使其形成的过渡金属配合物在催化、生物仿生、磁学耦合、电子转移和光物理性质等方面具有潜在的应用价值，近年来受到广泛的关注。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。