磁性

More importantly, ferrimagnetic iron sulphide is found in Unit A2 but absent in Unit A1, suggesting the control of marine environmental conditions on the magnetic mineral diagenesis.

铁磁性硫化物存在于A2段，但在A1段缺失，表明了海洋环境条件对磁性矿物成岩过程的控制。

The paper analysis that the viscosity of the magnetic fluid changes caused by the magnetic field grads.

本文从理论上分析了磁场梯度对磁性流体粘度的影响，并且通过实验验证了磁场对磁性流体粘度的影响。

The change of viscosity of magnetic fluid considered, we closely reasoned the torque formula of magnetic fluid rotation sealing at low temperature from Navier-Stokes equation and analyzed the experimental results with the formula.

从一般形式的Navier-Stokes方程出发，考虑磁性液体在低温下的粘度变化，推导了低温大直径磁性液体旋转密封扭矩公式，并对实验结果进行了理论分析。

The magnetic intensity of the applied magnetic force on a ferromagnetic material denoted by the term H measured in oersteds; b. The magnetic inducition or flux density as the flux per unit area normal to the direction of the flux ,denoted by B and measured in gauss; c. The magnetic permeability establishes the relation between magnetic induction and magnetizing force expressed as B/H =u; d.Residual magnetism or remanent magnetism which remains in the casting after the magnetizing force has been removed .

磁场强度的应用磁力就一铁磁材料标注由任期h来衡量， oersteds ；乙磁inducition或磁通密度为通量每单位面积正常的方向通量，标注由B和衡量在高斯；长该磁导建立的关系磁感应强度和磁化力表示的B /为H = u ； d.residual磁性或剩余磁性，这仍然是在铸造后，磁化部队已被删除。

UnlikeS andP, the delta-doping structure of MnxSi1-x only show enhanced ferromagnetic stabilization, while temperature shown HMF is lowered.

与S和P不同，delta掺杂使MnxSi1-x磁性半导体的铁磁稳定性提高但保持半金属铁磁性的使用温度降低。

In this year,it consists of(1) superthin film magnetic material;(2) nano-crystal magnetic alloy;(3) giant magnetoresistive material;(4) spin polarization ;(5) new ferrite and rare-earth compound.

今年综述内容包含：(1)超薄膜磁性材料；(2)纳米晶磁性合金；(3)巨磁电阻材料；(4)自旋极化；(5)新的铁氧体和稀土化合物。

The fluid level gage indicates the position of the magnetic buoy through that the magnetic buoy induces the direction changes of magnetic poles caused by the indication magnetic bodies in the indication tube which is parallel to the main tube, thereby indicating liquid level in container.

该液位计利用磁性浮标感应与主体管平行的指示管内指示磁体引起的指示磁体南北极指向排列的变化指示磁性浮标的位置，从而指示容器内液位。

The result shows that the mechanical strength and the thermal stability of bonded hybrid magnet are improved markedly with addition of ferrite in Nd-Fe-B powder,whereas its magnetic performance is reduced slightly.And the temperature coefficient of coercivity with zero is obtained in hybrid magnet with 87% ferrite and 13% HDDR Nd-Fe-B.Due to the magnetic dipole field between the differe...

实验结果表明：随着铁氧体磁粉的加入，复合磁体的磁性能虽略有降低，但其力学性能及热稳定性均有大幅度改善，特别是在铁氧体含量为87%时，复合磁体内禀矫顽力温度系数为零；不同磁粉间静磁场的存在，使得复合磁体在铁氧体含量低于70%时，其磁性能大于平均值，而大于70%时则小于平均值。

First, the effects of magnetic RAM relaxation time and the rise-time of incident pulse signal on reflection signal are discussed, the relationship between the rise-time of incident pulse and relaxation time based on the energy of reflection signal is revealed. Then, the effects of magnetic hysteric, susceptibilities and saturation upon reflection signal are analyzed, the results reveal the reflection of RAM target and UWB signal design. In the meantime, dielectric relaxation time effect about dielectric RAM target is analyzed simply, and the effects of relaxation time and the width of incident pulse upon reflection signal are probed. Finally, a few RAM targets are measured in the chamber using the impulse radar experiment system which is developed by the team of anti-stealth impulse radar on Department of Electrical Engineering, National University of Defense Technology. The experimental results show the similarity of the rule of echos with the theory. From the compared results of different tagets, we concluded, compared with 15% wideband sinusoidal signal, the impulse signal has increased 10～12dB energy from the same loaded RAM target; this, in turn, shows the nonlinear effects of RAM to the echoes, and the potentiality of the impulse signal to RAM targets.

首先分析了磁性RAM的弛豫时间及入射脉冲信号的上升时间对反射信号的影响，从反射信号能量角度出发，给出了入射脉冲上升时间与弛豫时间的关系；接着分析了磁性RAM的磁滞特性、磁化率及磁化强度对反射信号的影响，给出了RAM目标辐射和有关UWB信号设计的一般性结论；其次，对介电RAM的弛豫时间效应作了简单的分析，探讨了介电弛豫时间及入射脉冲宽度对反射信号的影响；最后利用国防科技大学电子技术系&反隐身冲激雷达技术研究组&研制的冲激雷达实验系统，在微波暗室中对几种不同的RAM目标进行了测量，结果表明：其反射波形的基本规律与上述理论分析相一致；从各种不同目标回波的能量对比结果得出，涂覆RAM目标对冲激信号的吸收比15％带宽的正弦信号要小10～12dB，证实了RAM的非线性效应对回波的影响，也证实了冲激信号反隐身的潜力。

The polystyrene ICF target material doped with nanometer magnetic Fe3O4 particle was prepared to fabricate the magnetic target without a support rod used in ICF experiment.

为实现惯性约束核聚变中无接触点打靶实验构想，探索在聚苯乙烯中掺杂纳米磁性粉体，以制备磁性靶丸。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。