1) Antenna radiation efficiency
天线辐射效率
2) antenna radiation
天线辐射
1.
In this paper, the multiresolution time domain (MRTD) scheme based on Cohen-Daubechies-Feauveau (CDF) biorthogonal scaling functions is applied to analyze microstrip antenna radiation.
本文应用基于Cohen-Daubechies-Feauveau(CDF)双正交尺度函数的时域多分辨分析(MRTD)算法分析微带天线辐射,推导了MRTD更新公式及各向异性理想匹配层(APML)吸收边界公式,并对天线的重要参数如:S参数,输入阻抗,辐射方向图等特性进行计算。
2.
The weak resonance frequencies are the small antenna radiation which is excited by the field in the cavity.
前者携带有天线几何结构及其构成材料的信息,后者含有天线辐射特性方面的信息。
3) radiation efficiency
辐射效率
1.
A uniform representation in the calculation of seismic radiation efficiency and rupture speed;
震源辐射效率计算的一致性方法
2.
The percentage of fuel in natural gas and air mixtures has large influence on radiation efficiency.
催化燃烧是一个异相氧化过程,它的优点在于燃烧的排放接近零污染,燃气与空气之间的比例关系对系统的辐射效率有相当大的影响。
3.
The radiation efficiency will be reduced quickly if mode number is increased at low frequency.
以简支矩形板为例 ,通过声辐射模态控制结构噪声 ,并分析了声辐射模态的数学和物理意义 研究发现在中、低频时 ,辐射模态对应的辐射效率随着模态阶数的增加而迅速降低 本文以点力作动器作为控制力源 ,以声功率最小化为控制策略进行主动控制 并且进行了数值计算研
4) radiant efficiency
辐射效率
1.
An infrared gas range with ceramic plaque has a radiant ceramic plaque which raises its radiant efficiency, and needs fewer excessive air that results in higher theory combustion temperature and fewer venting heat loss, and its shorter panrest increases the heat exchange and reduces the thermal radiation to surroundings.
分析了陶瓷板红外线燃气灶热效率比大气式燃气灶高的原因:具有陶瓷板辐射体,辐射效率高;燃气燃烧需要的过剩空气系数小,致使理论燃烧温度高,增强了换热,减少了排烟损失;锅支架高度小,有利于增加换热量和减小向周围的辐射散热损失。
2.
With the rapidly developing of microstrip antenna in the military and commercial fields,narrowband and low radiant efficiency become the bottlenecks for its further development.
随着微带天线在军事和商业领域内迅速发展,微带天线的频带窄以及辐射效率低成为制约其发展的两大“瓶颈”,因此展宽频带和提高辐射效率成为当前微带天线的研究热点。
5) radiation efficiencies
辐射效率
1.
It is presented radiation modes and radiation efficiencies using relationship between surface normal velocities and surface sound pressure of vibrating structures and gives one definition of the weight coefficient of sound radiation.
本文通过振动结构表面的法向速度和表面声压之间关系,得到了振动结构的声辐射模态和辐射效率并给出了声辐射模态伴随系数的定义。
2.
In this paper, it is presented radiation modes and corresponding radiation efficiencies using relationship between surface normal velocities and surface sound pressure of vibrat.
通过振动结构表面法向速度和表面声压之间的关系,给出板、梁振动结构的声辐射模态及其对应的辐射效率,并给出声辐射模态伴随系数的定义。
6) radiation value
辐射值;辐射效率
补充资料：配置效率和生产效率
在经济学上，经济发展的动力，或者说效率的来源，分为两类：一类是配置效率，二是生产效率。所谓配置效率，是指给定资源和技术的条件下，怎么样使资源从边际生产率低的地方流向边际生产率高的地方，从而使得资源和利用更合理、社会总价值达到最大;而生产效率是指如何通过技术进步提高每一种资源的生产率，也就是把社会的生产可行性边界向外移。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条