铁磁性

The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.

第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。

It has been paid more attention to drive a levitated work stable though linear motor.

利用磁悬浮技术将铁磁性平台悬浮在磁场中，通过直线电机无接触驱动，结合控制技术实现快速精密定位已经越来越得到重视。

It is point out that the transient Kerr peaks are not related to ferromagnetism and may originate from paramagnetic magnetization of free electrons in the samples, while the magnetic field that magnetizes the free electrons comes from inverse Faraday effect of the circularly polarized pump laser.

分析了此Kerr峰的起源，指出此瞬态Kerr峰与铁磁性无关，可能起源于自由电子的顺磁磁化，而顺磁磁化的外磁场来自于圆偏振抽运光的逆法拉第效应。

Cage shaped rotor includes following parts: columnar rotor core made from soft magnetic material, multiple bar conductors made from copper inserted into rotor core along up and down direction, short circuit rings made from copper installed on upper and lower ends of rotor core in order to realize electrical connection among each bar conductor. Preparation method includes steps: in step for preparing short circuit ring assemblies, bar conductors are installed between short circuit rings in upper part and lower part to keep electrical connection between short circuit rings in upper part and lower part; in step for forming columnar rotor core, pressurization molding soft magnetic material is carried out when short circuit rings module is in die so as to form rotor core, where bar conductors are inside and short circuit rings are in upper and lower ends.

一种电动机的笼子状的转子及其制造方法，电动机的笼子状的转子包括转子铁芯，用软质磁性材料制成，呈圆筒状；多个导体棒沿上下方向插在转子铁芯的外圈，用铜制成；短路环为能够与各导体棒实现电连接，分别安装在转子铁芯的上、下端，并用铜制成；其制造方法，即制作短路环组件的阶段，在这个阶段中在用铜制成的上部短路环与下部短路环之间安装铜质的导体棒，从而形成短路环组件，这些导体棒相距一定间隔，与上、下短路环保持电连接；形成圆筒形转子铁芯的阶段，在这个阶段中把短路环组件放在模具内，并用软质磁性材料进行加压成型加工，从而形成导体棒位于其内部、短路环位于其上、下两端的转子铁芯。

On the basis of the Heisenberg exchange model, the spin-wave eigen-problem ofthe ferromagnetic bilayers with face-centered cubic structure is solved exactly at thelow temperature.

在Heisenberg模型的基础上，严格求解了面心立方结构双层铁磁性薄膜中自旋波的低能量子本征值问题。

Magnetic flux leakage detection technology is an useful method in the online defect of the ferromagnetic oil-gas pipelines.

漏磁检测技术是铁磁性油气管道在线缺陷检测的有效手段。

On the other hand, the higher contents of hematite would not necessarily make the rocks red-colored, due to the suppression by other pigments, such as organic matter in black or ferrous iron of chlorite in green.

总体而言，浅红色岩层含有最高的总铁含量和赤铁矿铁，灰色岩层则以顺磁性的亚铁为主，暗色和绿色岩石仅含有顺磁性的二价铁或者与相对丰度较低的三价铁共存。

The isolated cells are able to orient and migrate to the magnet in artificial magnetic field but could not orient swimming only under the geomagnetic field. Magnetosomes produced by Acidithiobacillus ferrooxidans were range from 40nm to 90 nm according to the results of TEM. Energy dispersive X-ray analysis indicated that extracted magnetic particles consisted of oxygen and iron. The results show that some Acidithiobacillus ferrooxidans cells have weak magnetotaxis and they could be able to be separated by solid-plate magnetophoresis method from others. With the development of this new isolation method, it is possible that we could do deeper research to generate a comprehensive description of the mechanism that how Acidithiobacillus ferrooxidans synthesize the magnetic particles.

实验结果表明，氧化亚铁硫杆菌具有较弱的趋磁性，在人工磁场下会进行趋磁运动，但仅在地磁场作用下不能定向运动，利用固体平板磁泳筛选纯化含有磁性颗粒的氧化亚铁硫杆菌的方法是切实可行的，磁泳分离技术的进一步完善和改进为传统的微生物菌种分离提供了新的途径，为研究纯氧化亚铁硫杆菌菌株胞内磁性颗粒的形成条件及机理提供了前提条件，也为今后从浸矿细菌中分离筛选更多的含有磁性颗粒的菌株打下基础。

The hollow Ni2 microspheres were prepared via the hydrothermal reaction of NiCl2 with aqueous ammonia at 140 ℃ for 12 h.

采用X射线衍射仪、扫描电镜和透射电子显微镜对产物进行表征，并在室温下测试了它的磁学性能，结果表明， Ni2空心微球的直径约为3～4 μm，它是由尺寸1.1～1.3 μm左右的六方相结构的Ni2纳米片组装而成； NiO空心微球是由立方相纳米片和多孔纳米片组装而成，它具有弱的铁磁性，其矫顽力为583 Oe，剩余磁化强度为0.213 emu/g。

They can be widely used in the following industries:aviation. Aerospace, soldierwork, railroad, metallurgy, the automobile manu_facturing,I.C. engine,shipbuilding ect,especially used for theaccessory made of the magnetic material, such as axletree, shafts of different sizes,pole,crank, impeller,lamina,anchor man chain gear,standard pieces and valve ect,Asto the crack,pucker,loosing such surtace defects caused by the reason of raw materials or heat treatment ,sealing,founding,forging and pressing, tiredness, quenching, milling and paring, our products can detect them without any loss.

产品广泛应用于航空、航天、军工、铁路、冶金、汽车制造、内燃机、造船业、弹簧、压力容器、石化、桥梁、油田、机械制造等行业，如锻压件、轴承、大小轴类、连杆、曲轴，叶轮，叶片，锚链、齿轮、标准件、阀门等铁磁性材料制成的零件，因原材料的原因或者热处理、焊接、铸造、锻压、疲劳、淬火、磨削而引起的裂纹、夹渣、折叠、疏松等表面缺陷的无损检测。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。