2、

Ray equation is derived from Fermat's principle in variation form.

本文由费马原理的变分形式,导出光线微分方程.

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3、

False Scattering and Ray Effect in Spherical Harmonics Approximation for the Radiative Transfer Equation

球谐函数法求解辐射传输方程的假散射和射线效应

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4、

Starting from the wave equation, we find expression of width of tapered GRIN lens and use it to determine the change of ray periodic node point.

本文由波动方程出发,求得了锥形GRIN(梯度折射率)透镜的光束宽度关系式,并由此确定这种透镜的变周期节点。

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5、

It outlines the electromagnetic pulse induced by γ-ray radiated from nuclear explosion bomb and the Keller box method for solving Maxwell equation. Comparison of results calculated from γ-EMP program with those from SHARP program is given as well.

主要叙述核爆弹体释放出的γ射线所形成的电磁脉冲以及解Maxwel方程组的KelerBox方法,并且给出了γ-EMP程序同美国SHARP程序的计算结果。

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6、

And the thickness of ultra-thin layer was derived from small angle x-ray diffraction using the Bragg's equation witha refraction correction.

讨论了利用多层膜的小角x射线衍射谱理论分析,导出了单层膜厚度和多层膜周期厚度的测量方法。

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7、

The equation of X-ray flux was deduced with the transverse divergence of electron and laser beams in the interaction area being taken into account. The relationship between the size of electron and laser beams and both X-ray flux and spectra flux was analyzed.

本文在考虑相互作用区内电子束和激光束横向发散的前提下,推导了激光同步辐射源X射线通量的计算公式,讨论了激光束和电子束束腰尺寸对X射线通量和谱通量的影响。

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8、

a brief survey of the theory of x-ray diffraction in crystals is given. different forms of geometrical diffraction theory, i.e., the laue equation, bragg equation and ewald diagram are introduced and their similarities and differences discussed.

文章概述了晶体X射线衍射理论的发展过程,介绍了不同形式的衍射几何理论、劳厄方程、布拉格方程与埃瓦尔德作图法,讨论了它们之间的异同之处。

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9、

In our experiments, the isothermal equation of state of wBN is studied by two different in situ high pressure X-ray diffraction methods at room temperature.

使用两种不同的高压在位X光衍射法,研究了用爆炸法合成的纤锌矿型氮化硼(wBN)在室温下的等温状态方程。

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10、

With the ray tracking method, tracks of the rays in the grid are used to compute the energy source term by radiation transfer equation.

利用光线追踪法,根据光线在网格中的传播路径信息,运用辐射输运方程,得到流场的能量源项;

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11、

Generally seismic pre-stacking for ward modeling was done by ray tracing or two-way wave equation algorithms.

通常使用射线追踪法和全程波动方程法来实现这一模拟.

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12、

The paper discussed four time-distance curve equation of seismic waves in vertical heterogeneous media; analyzed and compared the errors of ray paths and travel-time curves under the approximation of different velocity function in four layered media models;

本文讨论了四种垂向非均匀介质中地震波的时距曲线方程,分析比较了四类层状介质模型在不同速度函数近似下的射线路径和走时曲线误差;

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