| 1. | Anhysteretic remanent magnetization 非滞后剩余磁化 |
| 2. | Chemical remanent magnetization 化学剩余磁化 |
| 3. | Thermo - remanent magnetization 热存磁性 |
| 4. | With the increasing of the doping amount of these four rare earths , both the specific saturation magnetization and the specific remanent magnetization decrease gradually to the same extent 随着稀土掺杂量的增加,样品的比饱和磁化强度和比剩余磁化强度均随之下降,且掺杂各种不同稀土元素的下降幅度大体相同。 |
| 5. | The regional stratigraphic petrophysiacl column , which includes density , magnetic susceptibility , remanent magnetization , electrical resistivity and chargeability , has been set up to help geophysical survey in hebei province 摘要主要介绍河北省区域地层密度、磁化率、剩磁强度、电阻率、极化率物性柱的特徵,其地层物性统计表可供河北省境内的重力、磁法、电法勘查使用。 |
| 6. | The effects of the different kinds of rare earths and the doping amount of them on magnetic properties of bafe , 2o19 ultrafine powders ( including the specific saturation magnetization , the specific remanent magnetization and coercive force ) were firstly discussed systematically 首次查明了钡铁氧体粉末的磁性能(包括比饱和磁化强度、比剩余磁化强度和内禀矫顽力)随稀土元素种类及其掺杂量的变化规律。 |
| 7. | The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model , the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters , defect surface angle and shape , pipe material , field intensity , vehicle velocity , background magnetization , operating pressure and remanent magnetization and so on influence the mfl signal characteristics 采用霍尔元件作为缺陷漏磁检测传感器,获得管道轴截面漏磁场切向分量的漏磁信号;研究了缺陷外形尺寸、缺陷倾角和形状、管道材质和磁化强度、检测仪移动速度、管道背底磁场、管内压力和剩磁对漏磁信号的影响。提出了各通道增益放大、各路漏磁信号偏离调整、波形微分、数字滤波和平滑等漏磁信号预处理方法;分析了等空间采样的漏磁信号转换为等时间采样信号的必要性,研究了漏磁信号的小波去噪方法。 |
| 8. | Comprising 50249 density data , 11374 magnetic susceptibility data and 8889 remanent magnetization data , the regional stratigraphic physical column column based on stratigraphic regionalization has been set up to guide geophysical survey in jiangxi province , southern china 摘要对岩矿石50249个密度、 11374个磁化率、 8889个剩磁强度数据,以江西省及其地层区、地层分区为研究区,以构造层、年代地层为单元进行区域地层物性的统计,结果为该区的区域物探、矿区物探工作提供基础。 |
| 9. | The examples in abroad and home indicate that the viscous remanent magnetization is a convenient tool for orientation determination of drilled cores . it can be used on samples for which the geological age is not known . the only information required is well position , the direction and magnitude of well deviation and the " right way up " for the core sample 结合国内外的研究实例和自己的研究实例,对利用粘滞剩磁确定岩心方向进行了较深入的研究,进一步证明了粘滞剩磁岩心定向是一种不用考虑复杂的地壳运动和地质年代,只需要井位的井斜数据和取心方向标记的简单、方便值得推崇的方法。 |