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ellipticity n.【數學】橢圓狀;橢圓率。

ellis

The project is used which measuring instrument moved along axis and the measured quartz tube rotated and fixed ort a position . according to data of outer diameter and wall thickness of different sections and positions , it can calculate the parameters of section area , ellipticity , wall thickness error , flexibility and so on 系統將激光掃描綜合測量儀、直線與回轉伺服控制系統和計算機有機地結合,采用測量儀軸向移動,而被測石英管在固定位置上轉運而不移動的測量方案,根據測量出多個截面和多個不同位置的外徑和壁厚數據,計算出被測石英管的截面積、橢圓度、偏壁度、彎曲度等其它參數。

In order to obtain an elliptically polarized light , whose ellipticity angle to be invariable and the elliptical azimuth may continuously change , or the ellipticity angle may continuously change and the elliptical azimuth invariable , the polarization is analyzed based on the matrix optics method when the linearly polarized light transits the / 4 and / 2 wave - plates , which are placed according to the certain azimuth , the reliable data are obtained 摘要為了獲得橢圓率角不變、橢圓方位角可連續變化和橢圓率角可連續變化、橢圓方位角不變的橢圓偏振光,采用矩陣光學方法對按一定方位角擺放的/ 4波片和/ 2波片,在線偏振光通過后的偏振態變化,進行了理論分析和實驗驗證,取得了可靠的數據。

Terrain slope information can be drawn from polarimetric synthetic aperture radar ( sar ) two - dimensional image , so that three - dimensional image can be generated . it differs from two - pass or repeated trace insar that uses interference phase method to obtain topography height . the p - sar three - dimensional image technology uses the stokes matrix formed by two - dimensional images resolution cells , then applying polarimetric synthesize to stokes matrix can produce polarization signature of the scatter cross - section a - ( , x ) for any ( ellipticity ) and ( orientation ) polarization state 這種方法不同于重復軌道和雙通道insar系統,不是利用干涉法提取高度信息,而是利用極化sar二維圖像各分辨單元的stokes矩陣,通過極化綜合估計每個分辨單元的共極化散射特性和交叉極化散射特性(極化指紋) ,以及共極化散射特性最大值時對應的極化橢圓度x利極化橢圓方向角,求解地形的高度輪廓。

The outline of fiber ' s tip has very great influence on the coupling efficiency . it is reported , using the way of grinding and melting to form a microlens on the fiber ' s tip , can increase fiber ' s numerical aperture , reduce the ellipticity of laser , and improve coupling efficiency 光纖端面的形狀對耦合效率有很大的影響,有文獻報道,采用拋磨燒熔等加工方法,可在光纖端面形成一個微透鏡,增大光纖的數值孔徑,對入射激光進行橢圓度校正,從而提高耦合效率。

Previous algorithms either fitted general conies or were computationally expensive . by modifying the ellipticity constraint , we can ensure what we get is an ellipse , so that we can get the symbol to track moving objects 對此文中通過對橢圓擬合約束條件的修改確保擬合的二次曲線為橢圓,從而實現了符號化跟蹤運動物體的系統。

Under the assumption that the elastic tensor satisfies the strong - ellipticity condition , we reduce the two - dimensional equations of linearly elastic membrane shells to a first order linearly symmetric hyperbolic system 摘要在彈性張量滿足強橢圓性條件的假設下,把2 -維線性動態膜殼方程組化為一階線性對稱雙曲組。

( 3 ) for a symmetrical distribution scene , the attitude information of the terrains is included in the variable of the orientation angle of the polarization ellipticity Cd對于一個均勻分仆場景,地勢的姿態信息調制在極化橢圓力下0角的變化量中。

Series analysis showed that the critical buckling pressure of cylinder under external pressure could be obviously decreased with the increase of ellipticity of cylinders 系列計算表明,外壓圓筒體屈曲臨界壓力值會隨筒體橢圓度的增加而明顯降低。

Because of the ellipticity of the earth ' s orbit the solar radiation incident on the earth is about 7 % greater in december than in june 因為地球軌道是橢圓,入射到地球上的太陽輻射在12月份約比6月份多7 。

Asymptotic behavior of solutions to dissipative nonlinear evolution equations with ellipticity 具有橢圓性質的耗散非線性發展方程組解的漸近行為

The influence of ellipticity on relative dynamics characteristic is analyzed . 2 分析仿真了偏心率對相對動力學特性的影響。

The ellipticity of the elliptic 橢圓薄膜的橢圓性

Because of the ellipticity of the earth's orbit the solar radiation incident on the earth is about 7% greater in december than in june . 因為地球軌道是橢圓,入射到地球上的太陽輻射在12月份約比6月份多7。