精确定量满月时的曝光时间不好捉摸;如果景物有散射并且直接受光,那么就在ISO 100下使用f/2.0和30秒曝光作为初始值,然后向上图的1——4四个方向进行调节。
Gauging exposure times during a full moon can be tricky; use f/2.0 and 30 seconds at ISO100 as a starting point (if subject is diffuse and directly lit), then adjust towards scenarios 1-4 accordingly.
然后,采用一种基于模匹配过程的横向散射矩阵方法,系统分析了微带导波结构的特征值问题。
Then, a transverse scattering matrix approach based on mode matching technique is used to analyze the eigenvalue problem of microstrip guiding wave structures.
该方法将极化相似度量引入到局部极大值匹配算法中,有机地结合了散射中心特征点的空间域和极化域的信息。
By combining the polarimetry similarity and the local maxima match ATR algorithm, the method can consider both space and polarimetry information of the scattering centers.
应用这个简便的关系式,可从采用不同吸波材料的两次模型实测值来推断原型目标的雷达散射截面。
By means of this simple formula, the RCS of prototype can be deduced by the measured values of two modelling targets coated with different kind of absorbent materials.
采用免疫散射比浊法测定33例AMI患者血清CRP的系列变化值,取其峰值。
Scatter turbidimetry was used to measure the serum level of CRP in 33 patients with AMI.
前向散射能见度仪测量前向散射光强度,确定大气的消光系数,进而获得大气的能见度值。
The intensity of forward-scattered light is measured by the forward-scattering visibility sensor, which determines the extinction coefficient of the air, then the visibility can be obtained.
本文从散射矩阵本征值的频率关系出发,对宽带集中元件环行器所需的设计参数作了优化计算。
The Parameters of a broadband lumped-element circulator are optimized by using the scattering matrix eigenvalue relative to the frequency.
计算结果表明核子-核子弹性散射的位相变化使理论微分截面增大,改进了理论值与实验数据的符合。
It is shown that a phase variation of the nucleon-nucleon elastic scattering amplitude leads to a large increase in the calculated differential cross-section and a substantial improvement.
利用矩阵条件数对方程求解的稳定性进行了讨论,推导出理论上的折射角和小角散射宽度的最大值。
The stability of the reconstruction procedure is discussed using the condition number of matrix, and the theoretical maxima of the refraction angle and USAXS distribution width are given.
模型预测值和测量数据的良好吻合显示了这种扩展双站散射模型的有效性。
The validity of this extended bistatic scattering model is demonstrated through the excellent agreements between model predictions and measurement data for statistically known surfaces.
研究结果表明:随着喷嘴直径的减小,射流核心段速度值越来越大,射流的散射角越来越小,射流的集束性越来越好。
The results show that with the reduction of nozzle diameter, the speed value of the core section is getting bigger, the scattering Angle of jet is getting lower and the focus of jet is getting better.
在共振米散射条件下,绝对局域化长度取极小值。
And the absolute localization length reaches a minimum under the resonance Mie-scattering condition.
随着反应物浓度的增大,共振瑞利散射强度值也增大;
The scattering intensity increased with increasing of reactant concentration.
从得到的散射参数中提取出有效电感、Q值和自谐振频率。
The effective inductor, Q-factor and the self-resonant frequency are extracted from S-parameters.
应用加权残值法,讨论了峡谷形状对平面SH波的散射影响。
By using the method of weighted residual, the effects of canyon shape on scattering of plane sh wave was studied in this paper.
本文建议了一种天顶亮度转换系数,它与室外无遮挡水平面上的天空散射光照度相乘,就能获得该天空类型的天顶亮度值。
This paper suggests a zenith luminance converting factor. By means of multiplying outdoor horizontal sky illuminance by this factor, the value of zenith luminance of the sky can be obtained.
距离对准是要将同一散射点在各个不同回波中的样值对准到同一距离门中,相位校正是要将雷达和目标之间的平动多普勒相位从各个回波中移除。
This thesis is aimed towards a research of the technologies of translation compensation. It consists of range alignment and phase adjustment. There are many methods of translation compensation.
考察前一种结构,且满足共振布拉格散射条件,相对局域化长度达到最小值。
For the former structure, and if the resonance Bragg-scattering is satisfied, the relative localization length attains a minimum.
并且受边界散射效应的影响,热导率值随硅锗原子百分比的不同发生变化;
The thermal conductivities change with different Si and Ge atoms percent because of the effect of interface scatterings;
并且受边界散射效应的影响,热导率值随硅锗原子百分比的不同发生变化;
The thermal conductivities change with different Si and Ge atoms percent because of the effect of interface scatterings;
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