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the magnetic susceptibility
相关语句
  土壤磁化率
     The Magnetic Susceptibility Characteristic of Urban Soil and Its Environmental Significance
     城市土壤磁化率特征及其环境意义
短句来源
     The magnetic susceptibility of the separate whose particle diameter range is 0.1~0.25 mm is highest, the relationship between the magnetic susceptibility of this separate of the soil and the soil magnetic susceptibility is very significant.
     土壤不同粒径组分磁化率与粒径大小存在密切联系,土壤不同粒径组分中以粒径在0.1~0.25mm的组分对土壤磁化率影响最大;
短句来源
     The magnetic susceptibility and Cu,Zn effective and total contents in the section soils have the same characteristics decreasing from the upper to the lower;
     剖面土壤磁化率值与Cu、Zn有效量和全量含量总体上均呈现出向下递减的相同特点。
短句来源
     ②The high anomaly of the magnetic susceptibility and Cu,Zn effective and total contents in the surface soils resulted in the influence of man-kind economic and engineering activities,and was principally related to free piling up life refuses,applying fertilizer with garbage,discharge of industrial waste gas,material and water,over-application of pesticide and chemical fertilizer in the local towns;
     ②表层土壤磁化率与Cu、Zn有效量和全量高值异常均系人类经济工程活动影响所致,主要与当地城镇生活垃圾随意堆放、垃圾施肥、工业“三废”排放、农药和化肥的过量使用等有关。
短句来源
     It was concluded that significant differences of the magnetic susceptibility curvesexist between the soil sections from the two regions. The susceptibility values of topsoils from the non-polluted area are low (<10E-3SI) and varies slightly with depth.
     结果表明,两个地区的土壤剖面磁化率曲线存在很大的差异:无污染地区地表土壤磁化率值都比较小(<10E-3SI),磁化率值随深度变化幅度很小;
短句来源
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  “the magnetic susceptibility”译为未确定词的双语例句
     Measurements of the Transport and the Magnetic Susceptibility of Nb_3Te_4 Single Crystal
     Nb_3Te_4单晶输运性质及磁化率测量
短句来源
     The magnetic susceptibility studies suggest that the compound is strong antiferromagnetic with J/k=-680K for g=2.0.
     磁性研究确认有强的反铁磁性,J/k=-680K,g=2.0。
短句来源
     The temperature dependence of the magnetic susceptibility of [Cu(oxca)]2Co-2H2O over the range 4 ~ 300K gave the exchange integral J= -28.09cm"1, g-2.13, F=3.81xlO"3.Using Na[Cu(oxca)] -l.
     在4-300K范围内测定了配合物[Cu(oxca)]2Co·2H2O变温磁化率,进行最佳拟和得到磁参数为J=-28.09cm-1,g=2.13,拟合因子F=3.81×10-3。
短句来源
     The temperature dependence of the magnetic susceptibility of {[Gd(phen)2 -(ClO4)]2[Cu(pba)]} (ClO4)2·2H2O has been studied in the 4 - 300K range,giving the exchange intergral J = 3. 56cm-1 .This indicates a weak ferromagnetic interaction between the copper (II) and gadolinum(III) ions.
     基于{Gd(phen)_2(ClO_4)]_2[Cu(pba)]}(ClO_4)_2·2H_2O的变温磁化率测量(4.1~300K),求出交换积分J=3.576cm~(-1). 表明在铜(Ⅱ)和钆(Ⅲ)离子间存在铁磁性偶合.
短句来源
     The magnetic susceptibility of nanometer magnetic particles and fluid is 0.32 and 8.9×10~(-3) respectively.
     纳米磁性微粒磁化率为0.32,纳米磁性流体磁化率为8.9×10-3。
短句来源
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  相似匹配句对
     Magnetic Liquid
     磁性液体
短句来源
     Magnetic Screw
     磁力丝杠
短句来源
     Magnetic Susceptibility
     稀磁合金的磁化率
短句来源
     THE DEVELOPMENT OF MAGNETIC MATERIALS
     磁性材料进展
短句来源
     THE RELATIVITY OF MAGNETIC INDUCTION
     电磁感应的相对性
短句来源
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  the magnetic susceptibility
Relations for the magnetization and the magnetic susceptibility of a ferrofluid and also for the permittivity of a polar liquid taking into account interparticle correlations with an accuracy of terms ~Ud2 were derived.
      
Fluxmeter for Measuring the Magnetic Susceptibility of Stainless Steel Samples
      
A portable device for measuring very low levels of the magnetic susceptibility of stainless steel is described.
      
A dependence of the magnetic susceptibility (κ) on the alternation of paleosol and loess has been revealed for loess sections of southern Tajikistan: the κ value increases in paleosols and decreases in loesses.
      
The magnetic susceptibility data of I and II have been measured in the temperature range of 2-300 K.
      
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By utilizing the method of correlation function (theory of Kubo), the ferrimagnetic resonance behaviour of the tight exchange coupled system was discussed. The general formulae of the magnetic susceptibility tensor were given, from which the resonance field H0 (or resonance frequency) and the line width 2△ωof the ferromagnetic branch and that of the exchange branch were determined. The results obtained show that the so-called fast relaxation and slow relaxation mechanisms are nothing but two branches (the...

By utilizing the method of correlation function (theory of Kubo), the ferrimagnetic resonance behaviour of the tight exchange coupled system was discussed. The general formulae of the magnetic susceptibility tensor were given, from which the resonance field H0 (or resonance frequency) and the line width 2△ωof the ferromagnetic branch and that of the exchange branch were determined. The results obtained show that the so-called fast relaxation and slow relaxation mechanisms are nothing but two branches (the transverse branch and the longitudinal branch) of the ferromagnetic resonance. The transverse branch corresponds to the coupled motion between the transverse components

本文利用关联函数的方法(久保理论),讨论了强交换耦合系统的亚铁磁共振,给出了系统总磁化率张量的一般表达式,由此可以定出铁磁支与交换支的共振场H_0(或共振频率)和峯宽2△ω。所得结果表明,所谓快弛豫及慢弛豫机理不过是铁磁共振的两个分支(横分支与纵分支)。横分支相应于J及S的横向磁矩之间的耦合运动J,S分别为希土离子及铁离子的磁矩),而纵分支相应于J的纵向分量与S的横向分量之间的耦合运动。 由于晶场及各向异性交换场的作用,J的量子化方向与S的量子化方向偏离一个角度φ。此外由于交换作用的各向异性,在交换作用哈密顿J.λ.S中,张量λ的非对角元可以相当大。结果表明,纵分支对峯宽的贡献近似地正比于φ~2及λ_(i3)(i=1,2)。 根据2△ω的一般表达式,在极低温下(4.2°K以下),峯宽主要是由横分支决定的。沿某些晶轴方向,当希土离子最低两个能级接近“交叉”时,共振场及峯宽应该出现反常峯值,这在实验上已经得到了证实。当温度升高时,纵分支将逐渐“压过”横分支。当纵向弛豫频率达到高频场的频率ω时,峯宽将出现极大值,一般实验中观察到的就是这个极大值。当温度继续升高时,横分支又将起主要作用。当横向弛豫频率接近相应于希土离...

本文利用关联函数的方法(久保理论),讨论了强交换耦合系统的亚铁磁共振,给出了系统总磁化率张量的一般表达式,由此可以定出铁磁支与交换支的共振场H_0(或共振频率)和峯宽2△ω。所得结果表明,所谓快弛豫及慢弛豫机理不过是铁磁共振的两个分支(横分支与纵分支)。横分支相应于J及S的横向磁矩之间的耦合运动J,S分别为希土离子及铁离子的磁矩),而纵分支相应于J的纵向分量与S的横向分量之间的耦合运动。 由于晶场及各向异性交换场的作用,J的量子化方向与S的量子化方向偏离一个角度φ。此外由于交换作用的各向异性,在交换作用哈密顿J.λ.S中,张量λ的非对角元可以相当大。结果表明,纵分支对峯宽的贡献近似地正比于φ~2及λ_(i3)(i=1,2)。 根据2△ω的一般表达式,在极低温下(4.2°K以下),峯宽主要是由横分支决定的。沿某些晶轴方向,当希土离子最低两个能级接近“交叉”时,共振场及峯宽应该出现反常峯值,这在实验上已经得到了证实。当温度升高时,纵分支将逐渐“压过”横分支。当纵向弛豫频率达到高频场的频率ω时,峯宽将出现极大值,一般实验中观察到的就是这个极大值。当温度继续升高时,横分支又将起主要作用。当横向弛豫频率接近相应于希土离子最低两个能级之间的间距ω_(21)时(h=1),峯宽将出现第二个极大值。?

The method used in Ref. [3] to treat the magnetic susceptibility of the coupled system was extended to analyse the spin-lattice relaxation processes. In the case of weak coupling, the detailed expressions for the line shape of longitudinal nonresonance absorption and transverse resonance absorption were obtained by solving a set of coupled equations. The longitudinal and transverse relaxation times have been obtained as functions of the external alternating field. This is the direct consequence of the...

The method used in Ref. [3] to treat the magnetic susceptibility of the coupled system was extended to analyse the spin-lattice relaxation processes. In the case of weak coupling, the detailed expressions for the line shape of longitudinal nonresonance absorption and transverse resonance absorption were obtained by solving a set of coupled equations. The longitudinal and transverse relaxation times have been obtained as functions of the external alternating field. This is the direct consequence of the fact that the equations we used are of the non-Markovian type. Far away from the resonance point, the actual expression of the line shape is found to be quite different from that of the Debye or Lorentz type; the non-Markovian effect generally can not be ignored.

本文讨论了工作中决定耦合系统磁化系数的方法,并用来分析自旋-晶格弛豫过程。在弱耦合的情况下,得出了决定磁化系数的耦合方程组,并求出纵向非共振吸收和横向共振吸收线型的表达式。得出的纵向和横向弛豫时间是外加交变场频率的函数,这反映了高频场对弛豫的影响是由于所用密度矩阵方程为非马尔科夫型的直接结果。在远离共振点处,所得的线型公式和德拜型或洛仑兹型差别较大。一般说来,非马尔科夫效应是不能忽略的。 在自旋S=1的情况,我们系统地分析了纵向及横向弛豫的基本过程。其中包含与通常讨论的过程相应的项,如单声子过程,Raman过程,Orbach过程等等,但现在都有外加交变场频率ω参与进去。最后讨论了声子的寿命对横向弛豫时间的影响。

In this article the statistic problem of the parameters of physical properties of rock and mineral is discussed for geophysical prospecting interpretation. Practical material shows that it mainly corresponds to normal distribution and logarithmic normal distribution. The reason is analysed why the magnetic susceptibility mainly tallies with norml distribution and the theory grounds which produce other distributions are also studied. The. choice of statistical estimates is discussed, in author's opinion...

In this article the statistic problem of the parameters of physical properties of rock and mineral is discussed for geophysical prospecting interpretation. Practical material shows that it mainly corresponds to normal distribution and logarithmic normal distribution. The reason is analysed why the magnetic susceptibility mainly tallies with norml distribution and the theory grounds which produce other distributions are also studied. The. choice of statistical estimates is discussed, in author's opinion the expectation μof the parameters of physical properties of rock and mineral specimen should be used in theory calculation and interpretation of all geophysical prospecting methods applied the principle of linear superposition. The optimum estimates of μ. are discussed in different distribution and size of sample. Both the calculative formula concerned and nomography are introduced.

从物探正反问题需要角度,本文讨论了物性参数的统计问题。依据实际材料得出物性参数大多符合正态分布和对数正态分布,文中分析了磁化率多呈对数正态分布的原因,并研究了出现其他分布的理论依据。论述了估计量的选择,确认一切符合加法迭加原理的物探方法,其理论计算及解释中使用的物性参数应是均值μ。文中讨论了不同分布,不同子样火小的μ的最佳估计问题,介绍了有关计算公式及图算方法。

 
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