查询词典 spherical geometry

A nonlinear mapping function based on spherical geometry model is used and nonlinear image magnify can be achieved by this mapping function in image transform.

利用球面几何模型得到了一种非线性的映射关系，并通过分析得到了该映射关系在图像变换中可以得到非线性放大的效果。

The results on the related mixed approximations and techniques developed in this work are also applicable to many other problems with spherical geometry.

本文得到的一些理论结果和所采用的技巧，同样适用于其它球形区域问题的数值解。

The results showed that the size of nano-particle copper is distributed in the range of 10～50 nm in diameter and the nano powders are with spherical geometry.

探讨了BH-4与Cu2 +的反应历程，认为该反应是分三步进行的：第一步是铜的还原反应；第二步是生成的H+分别与BH-4和OH-的反应，这是一对竞争反应；第三步是硼的水解反应。

The results show that the microspheres present dense body with regular spherical geometry and their average size is below 100μm within narrow size distribution range.

结果表明，微粒呈规则的几何球状，平均粒径在100μm以下。

These quantities are used to characterize the spherical geometry of subpoints.

定义了用于刻画卫星星下点球面几何特征的两个指标：平均星间角距和星下点分布面积。

It is important and interesting to simulate numerically the movement of fluid flow with spherical geometry: when we study some problems such as weather prediction, fluid flow inside the earth, and some equations in oceanic science and astronomical physics.

在研究诸如天气预报，地球内部流体流动，海洋科学以及天体物理中某些问题的时候，经常需要数值模拟流体在球形区域内部的运动。

Convective motions that control dynamo action are critically influenced by the combined and inseparable effects of rotation, magnetic fields and spherical geometry.

它们的变化涉及地球内部与外部物质运动以相互作用过程，所形成的动力学问题是当前国际上的富有挑战性的热点研究课题之一。

A variational method with differential forms gives better precision for numerical solution of transport critical problem based on spherical geometry, and its computation seems simple than other approximate methods.

对于球几何问题，讨论了一种基于微分方程的变分形式求解方法，数值计算显示达到了较满意的精度，而且计算过程比起其他近似方法要简单

Accounting for the characteristics of freeze-drying of granular material, a theoretical heat transfer model of atmospheric freeze-drying in spherical geometry was developed. The temperature distribution and movement distance of sublimation interface were calculated, then the speed of drying process can he deduced. Theoretical analysis was done on influence factors such as bed temperature, material size and adsorbent diameter.

以粒状物料为例，建立了球坐标下常压冷冻干燥的传热过程理论模型，计算了物料干燥过程中的温度和升华界面的移动距离，并对床温、物料尺寸和吸附剂粒径等影响因素进行了理论分析。

In this dissertation, solar chromosphere-corona models are extended to spherical geometry for the first time. By using time-dependent, compressible MHD simulation, we numerically study, either 2-dimensionally or 3-dimensionally, the local and global propagation processes of the disturbances in solar atmospheric models.

本文首次将太阳色球层-日冕模式推广到球坐标情形，利用时变可压缩磁流体动力学模拟，对太阳大气模式中扰动传播的局地及全球问题进行了二维和三维数值研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。