Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

單饋反射面賦形天線是未來星載天線發(fā)展的一個重要形式女同一区二区三区在线观看，分析了基于物理光學欧洲亚洲成av人片天堂网网址、幾何光學和幾何繞射理論的理想反射面輻射場；介紹了基于幾何光學的反射面天線賦形方法国产一区二区精品偷斗情；針對賦形過程中輻射場的快速分析要求麻豆啪啪视频，比較分析了基于物理光學的Fourier-Bessel和Jacobi-Bessel級數(shù)展開方法以及GB展開分析方法；利用GB展開快速分析方法在20GHz頻率下對0.6m口徑的天線進行賦形分析囯产深喉视频一区二区，實現(xiàn)中國大陸的30dB增益覆蓋一级毛片久久w，通過數(shù)值計算研究了固定增益期望下的口徑尺寸隨頻率的變化，以及頻率為20GHz的不同尺寸天線賦形后的覆蓋目標區(qū)域最大增益的變化情況香港一级A毛片在线播放。

For radiation flux calibration based on double-monochromator, in order to overcome the faults of small viewing field and small aperture of trap detector, a radiation flux calibration method with a one-diode detector in stead of trap detector is proposed.

在基于雙單色儀的輻射通量定標中色色色国产，為了克服陷阱探測器視場小、孔徑小的缺點，提出了采用單片式探測器替代陷阱探測器進行輻射通量定標的方法又爽又黄按摩视频免费。

Fig.7. The distribution of the net radiation flux at the top of the atmosphere inferred from NIMBUS 3. Plots of the zonally averaged net flux, the flux along 90°E and along 20°N for July 1969 are shown.

根據(jù)"雨云"3 號資料推算出的大氣層頂凈輻射通量分布日韩黄色网站www...。1969 年 7 月緯向平均凈輻射通量，沿 90°E 的凈輻射通量和沿 20°N 的凈輻射通量分布下载黄色一级网站视频。

energy flux density：能淋度

energy flux 能通量 M0;v> B | energy flux density 能淋度 | energy flux of radiation 輻射能流 ?),xWZJ

radiation fluxmeter：輻射劑量儀

radiation flux density 輻射流密度 | radiation fluxmeter 輻射劑量儀 | radiation fog 輻射霧

flux pinning：通量鎖住

flux of radiation 輻射通量 | flux pinning 通量鎖住 | flux pump 通量泵