x
uploads/homocentric.jpg

homocentric adj.同中心的。

homocercal

In part two , the optical spatiotemporal pattern in ring optic cavity is investigated . using delay feedback with spatial perturbation method , the system shows roll , square , hexagon , homocentric circle , “ honeycomb “ and “ snowflower “ pattern with different spatial perturbation functions . different patterns can be coexist and compete each other with the same perturbation function , which is the new character of this optical system with delay feedback 第二部分,利用延時反饋的空間微擾方法研究了環形腔中二能級介質的光學時空斑圖的控制,在不同的微擾函數作用下,出現了滾筒狀、四方形、六角形、蜂窩狀、同心圓以及“雪花”狀等不同的斑圖,并且在相同的微擾函數下張勝海:博士學位論文出現了不同斑圖之間的競爭,這種競爭是我們發現的這一具有空間微擾的延時反饋非線性光學系統光學斑圖的新特征。

Typical examples show that the results of quasi - homocentric structure are better than traditional structure , the results of finite element are better than that of approximate analytical methods , monolayer stiffened results are better than two - double longitudinals stiffened optimum results 典型實例表明,準同心圓式結構優化設計方案優于傳統結構設計方案,基于有限元優化設計方案優于基于解析法的優化設計方案,液艙殼板單層加縱骨結構優化設計方案優于雙層加縱骨結構優化設計方案。

The optimum designs of a good and applied outer pressure tank structure of submarine ? quasi - homocentric structure , based on approximate analytical methods and finite element stress analysis method are made 提出了準同心圓式潛艇外部耐壓液艙結構是一種優良實用的結構型式,給出了這種結構基于近似解析法和基于有限元應力分析的結構優化設計方法。

This paper discusses the most suitable design of the homocentric ball capacitor on the condition that the maximum pressure endurance is limited and the puncture field is strong 摘要討論了在限定最大耐壓值及介質的擊穿場強的情況下,同心球形電容器的最佳尺寸設計。