查询词典 radiation flux

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.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

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.

在基于双单色仪的辐射通量定标中，为了克服陷阱探测器视场小、孔径小的缺点，提出了采用单片式探测器替代陷阱探测器进行辐射通量定标的方法。

The distributions of temperature and radiation flux density are obtained and analyzed.

通过计算获得了空气电弧等离子体温度和辐射能量的分布并进行了相应的分析。

In this paper, we study how to calculate temperature field and radiation flux of infrared target.

针对红外目标的温度场和红外辐射通量的计算进行了研究。

It can be seen form the results of the experiment that the method oftwo-wavelength pyrometry can be used to measure the rod-like cathode temperature.But this method has a big difficulty which is that it is difficult to separate the radiationflux due to cathode reflecting from the total radiation flux in the experiment.

在实验中，我们测出了不同情况下的阴极温度分布；实验结果显示，双波长高温测量方法能很好地测量棒状阴极的温度，但是双波长高温测量方法存在着一个的很大困难是：在实验中，很难将阴极表面反射的辐射通量从总的辐射通量中分离出来。

For experimental setup to calibrate spectral radiance by applying a diffuse plane, the measured spectral radiance can be obtained through integral of spectral radiation flux entering the spectrometer.

在利用漫反射板标定光谱辐亮度的实验装置中，标准灯完全可以近似为点光源。通过对进入光谱仪的辐射通量的数值积分，可以对应求出仪器的实测光谱辐亮度的计算公式。

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.

根据"雨云"3 号资料推算出的大气层顶净辐射通量分布。1969 年 7 月纬向平均净辐射通量，沿 90°E 的净辐射通量和沿 20°N 的净辐射通量分布。

English: 672. 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.

图7 。根据"雨云"3号资料推算出的大气层顶净辐射通量分布。1969年7月纬向平均净辐射通量，沿90°E的净辐射通量和沿20°N的净辐射通量分布。

It was proved under the homogeneous supposition that there are three parts of the relative errors in calculating the effective radiation flux over a complex orographic region i.e.

平均高度较小时，非均匀性的影响几乎可以忽略，但随着地形平均高度的增加，地形非均匀性的影响程度呈非线性增长趋势。

In conventional sonde based on the detection of different purposes such as the determination of ozone , stratospheric dew point, a variety of radiation flux, the atmosphere electric, the lower atmospheric pollution monitoring, etc.

在常规探空仪的基础上，根据不同的探测目的（如测定臭氧、平流层露点、各种辐射通量、大气电场、监视低层大气污染等）或不同的仪器施放方式（如从飞机、气象火箭、平移。。。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。