The equal-area DGGSs,however,have the important theoretical meaning and applied potential on large-scale remote sensing data processing and management.
利用全球离散网格系统管理海量空间信息是一种受到普遍关注的新途径,具有等积特性的网格系统在大范围遥感影像数据处理方面具有重要的理论意义和应用前景。
To get spherical equal-area hexagonal grids,this paper discussed five coordinate systems(CS): grid CS,medium CS,stand CS,vertex CS,and inverse Icosahedron Snyder Equal Area(ISEA) projection CS.
利用施奈德等积投影建立平面与球面的对应关系,并在此基础上设计了3种球面等积六边形离散网格的生成算法。
In order to generate spherical equal-area grid,this paper finds the corresponding relationships between unfolded icosahedron and sphere using Snyder equal-area projection.
文中利用Snyder等积多面体投影建立了平面与球面的对应关系,设计了球面等积三角形和四边形离散网格的生成算法。
This paper aralyzes the chdaracteristics of equivalent orifice and energy consumedby One m￣3/s of available air quantity.
分析了矿井通风等积孔和有效风量耗能率的特点，并提出了新的评价矿井通风难易程度的方法。
A comparative study was made of departure maps, peak potential map, isochrone map, isointegral map in BSPM and ECG in 42 patients with MI using a BSPM Ⅲmodel computer system.
目的 :比较体表电位标测 (BSPM)各种图形与心电图 (ECG)诊断心肌梗死 (MI)的敏感性 ,方法采用 BSPM- 型体表电位标测微机系统 ,对 42例 MI患者和健康人的体表差电位图、峰电位图、等时间图、等积分图及 ECG进行了对比研究。
