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场值
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  field value
     First of all, the relief of the first layer must be known, andthen the field value of the first field interface is gained by forward calculation.
     该方法是在知道第一层界面起伏情况下,通过正演计算出第一场界面的场值,然后再由总场值减去正演的第一层场值,最后反演下一层界面。
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     The value of ground state field for particle in classical quantum mechanics corresponds to expected vacuum value in quantum field theory while non-zero and zero value of field value is directly related to smoothness of background space.
     经典量子力学中粒子的基态场值,对应于量子场论中的真空期待值,场值的非零和零值,直接与背景空间的平坦性有关.
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     In order to make boundary wave field of computation approximate the true wave field value well, people usually minimize artificial reflection from the edges of the domain of computation by boundary condition and make acoustic wave propagation in a limited area efficiently can be used to describe physical behavior in an unbounded domain.
     为了使计算得到的边界波场值更接近真实的边界波场值,往往使用边界条件以减少来自计算区域边界的人为反射能量,使得声波在有限区域传播达到在无限介质中传播的效果。
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     While choosing crystal field ratio α+0.5 and α-0.5,the range of magnetic ordered phase shrinks. In particular,we found,with decreasing of concentration,the peak value of critical temperature undergoes a crossover from negative to positive direction of transverse crystal field when the ratio α-0.5.The magnetization behaviors have apparent difference for a given negative crystal field value when the crystal field ratio is different.
     晶场比率取+0.5和-0.5时,磁有序相范围缩小,特别是晶场比率取-0.5时,随晶场浓度的降低,临界温度峰值从横向晶场负方向渡越到正方向. 固定某一负晶场值,不同晶场比率的磁化行为有明显差异.
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     Based on an analysis of the major factors affecting the quality of data obtained in aeroelectromagneticsurvey, this paper has put forward zero horizontal drift correction methods such as field value standardization andphase check and correction, studied and developed a suite of techniques suited to data - processing and graphical representation for aeroelectromagnetic method.
     在分析探讨影响航空电磁测量数据质量主要因素的基础上,提出了场值标定,相位校验改正等零水平漂移改正方法,研究开发了一套适合航空电磁法数据处理与图示的方法技术。
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  “场值”译为未确定词的双语例句
     Influence of annealing temperature on the microstructures and magnetic properties of PtMn/Co exchange coupling bilayers,grown by magnetron sputtering on Si(100) substrates,was studied.
     采用磁控溅射法在Si(100)基片上沉积了PtMn/Co双层膜,研究退火温度与样品微结构以及磁性的关系,发现退火温度越高,反铁磁性PtMn层由fcc非磁性相向fct反铁磁性相转变越充分,交换偏置场值Hex越高。
短句来源
     It uses subregion to simulate spatial variation of the background, calculates critical values of anomalies with EDA technique, and measures the undulation of field values with the contrast as the datum.
     该法采用子区模拟背景场的空间变异,以EDA技术计算异常临界值,用衬值为基准度量场值的起伏变化,较好地解决了弱小异常的识别问题。
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     In this paper, a calculation of normal magnetic field in China by 29× 20 grids is made from the coefficient of international geomagnetic reference field during 1945-1990. A contour map and iso-grade map of relevant normal field are compiled, and its variation regularities are also analysed.
     本文根据国际地磁参考场系数,计算了中国地区1945~1990年代2~0×2~0网格地磁正常场值,并绘出了相应的正常场等值线图和等变线图,对其变化规律进行了分析.
短句来源
     Compared with conventional method,the validity and advantage of this method in expressing the detail information of potential field data have been proved by both model testing and field data applications.
     对比于传统的采用根据位场场值大小平均分配色阶的方法,理论模型试验和实际资料的应用结果,都显示了本方法在提高图像表达位场数据细节信息能力上的有效性和优越性。
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     The computational results show that the value of electric field in some range could be estimated by the empirical formula.
     计算表明经验公式可以用来预测FDTD计算域外一定范围内的场值,但预测的场点不宜离计算域太远。
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  相似匹配句对
     A DISCUSSION OF FIELD VALUE ON FIELDSOURCE SURFACE
     源面上的探讨
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     pH VALUE DISTRIBUTION MODEL FOR MULTICHANNEL FLOW ELECTROPHORESIS
     多通道流动电泳的pH模型
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     These fields are of the H.R.
     具有H . R .
短句来源
     value (number of fundamental) being 44. The chromosome number and karyotype of A.
     为 44。
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     The influence of structure of the chiral aminoalcohol on the enantioselectivity was studied.
     的影响;
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  field value
A correlation of the field value, i.e., variations of the magnetic parameters (Hτ, H0τ, and Hn), with the fatigue limit was found to exist.
      
In superconductors of the second kind, this field value coincides with the absolute instability point of the Meissner state.
      
The electron relaxation time was determined from the magnetic field value corresponding to this maximum.
      
A "window" is observed in the photoresponse near the field value predicted on the basis of a single-particle electron spectrum consisting of broadened Landau levels.
      
It is shown that, for any, including an arbitrarily small, number of dipoles ε in the cutoff sphere, the average field value is zero.
      
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The annealed effect at temperatures lower than the erystallizaton tempera.ture in the amorphous(Fe._5 Ni._5)_7(?)Si_(?)B_(14)alloy were investigated by M(?)ssba.uer spectra.The M(?)ssbauer spectra of the samples both before and after annealing werebroad six-line spectra which can be fitted by the computed spectra with Gaus-sians hyperfine field distribution function p(H).After annealing,the lines ofthe P(H) curve become narrower,but the value of the hyperfine field correspon-ding to the peak of the p(H) curve...

The annealed effect at temperatures lower than the erystallizaton tempera.ture in the amorphous(Fe._5 Ni._5)_7(?)Si_(?)B_(14)alloy were investigated by M(?)ssba.uer spectra.The M(?)ssbauer spectra of the samples both before and after annealing werebroad six-line spectra which can be fitted by the computed spectra with Gaus-sians hyperfine field distribution function p(H).After annealing,the lines ofthe P(H) curve become narrower,but the value of the hyperfine field correspon-ding to the peak of the p(H) curve were increased,and the relative line inten.sities of the second and fifth lines of the six.line spectra were also increased.Tbose show that the magnetic annealing effect not only induces the magneticmoments alignment along the external field direction but also changes the environ-ment of the iron atoms.Also presented in this paper is a simple fitting program compiled by theauthors.

对非晶态(Fe._5 Ni._5)_(78)Si_8B_(14)合金在低于晶化温度的退火效应,进行了穆斯堡尔谱研究.退火前后的穆斯堡尔谱都是展宽的六线谱,可用具有高斯型超细场分布函数P(H)的计算谱拟合.退火后,P(H)曲线的线宽变窄,而其峰对应的超细场值增加,六线谱的第二和第五线的相对强度也增加.这些标志着,磁退火不仅使磁矩沿外场方向取向,而且改变了铁原子的近邻状态.本文还介绍了自编的简易拟合程序.

The application of finite element method to 2-D forward solution of magnetotelluric sounding is discussed, and the mesh dissection scheme adopted in present literatures is reviewed in this paper。The rectangle mesh scheme makes formula easier to normalize and convenient for calculation, but it loses good adaptability to geometric shapes of interfaces. Forthermore, because bilinear interpolation is used over rectangle elements the partial derivative of the field respect to z is only a function of y, and a constant...

The application of finite element method to 2-D forward solution of magnetotelluric sounding is discussed, and the mesh dissection scheme adopted in present literatures is reviewed in this paper。The rectangle mesh scheme makes formula easier to normalize and convenient for calculation, but it loses good adaptability to geometric shapes of interfaces. Forthermore, because bilinear interpolation is used over rectangle elements the partial derivative of the field respect to z is only a function of y, and a constant in z direction, thus decreasing the accuracy of auxiliary field values. Proceeding from this thesis, the author adopts a combination of triangle and rectangle dissection schemes, which includes the following steps: first, on the surface and interfaces (particularly inclined interfaces), each rectangle element is divided into two right triangles by a diagonal; second, a functional is obtained by using lagrange's quadric interpolaton formula; finally, a resultant stiffness matrix is made up of ones which consist of rectangle elements. Thus this combination not only makes a good adaptability to various interfaces but also helps to raise the field value accuracy of the fields near interfaces and the auxiliary field at ground surface. In this case, the expression of auxiliary field values is a linear function of y and z; besides, it can be expressed as a simple linear combination (J=a~T V) of functional values at interpolation points, which is very helpful to inversion. Corresponding calculating formulae are given in this paper.

本文讨论了有关有限元法在大地电磁测深二维正演中的应用问题,论述了现有文献中采用的网格剖分方案。矩形网格具有易于使公式规则化和便于进行计算的优点,但失去对界面几何形状较好的适应能力;再有,由于在矩形单元上采用双线性插值公式,因而场相对z的偏导数仅是y的(线性)函数,而沿z方向是常数,这就影响确定辅助场值的准确程度。基于这种考虑,作者采用三角形—矩形单元综合剖分方案,即在地面和界面(特别是倾斜界面)处,以对角线将矩形划分为两个直角三角形,然后采用拉格朗日二次插值公式,计算泛函,再按矩形单元构成组合的刚度矩阵,最后合成总刚度矩阵。这样,既可较好地适应各种几何形状的界面,又可提高计算界面附近场值及地面处辅助场值的准确程度。这时,辅助场值的表达式是y、z的线性函数,并可表示成插值点处函数值的简单的线性组合,即J=a~TV。这在反演计算中会带来很大的方便。文中给出了相应的计算公式。

In this paper, the magnetic field distribution around a coil is worked out by solving the Maxwell equations for both the cases before and after inserting a "concentrating body" into the winding coil. The solution shows that, if we keep the current in the winding coil constant before and after then inserting, then the magnetic field in the hollow region will not change; but if we keep the supplied energy unchanged before and after the inserting (i.e. C, V fixed), then the ratio of magnitude of the field in

本文通过解麦克斯韦方程给出了把“浓缩体”插入初级线圈前后的磁场分布。方程的解表明,如果在“浓缩体”插入前后,保持初级线圈中的电流不变,则二者在中空区产生的磁场不变;如果供应M者的能量不变(即C,V固定),则插入“浓缩体”前后场值之比B/B_0∝(R_0)~(1/2),但这完全是由于磁场的再分布引起的。这时中空区的总磁通减小,磁通并不守恒,不存在使磁通浓缩的问题,因而用它产生高强脉冲磁场存在着原理性错误。 本文指出了把“浓缩器”看作脉冲变压器的错误所在。理论计算还表明用端面为截头圆锥形装置能产生较高场是结构效应所致。

 
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