辐射

Obtained about 100 models (namely wavelet-domain HMMs) of ships by training a large amount of the ship-radiated noise data, compared these models according to the combination of various conditions speed, abeam, etc.

对大量数据进行了训练得到近百个舰船辐射噪声的小波域HMM，并按航速、正横距离及不同工况组合比较了舰船辐射噪声的小波域HMM，给出了模型解释。

According to Rayleigh-Jeans law,the emission of the object is directly linear to its absolute temperature.As the frequency of object increases,Rayleigh-Jeans Law deviates from Planck's Blackbody Radiation Law,and the radiation of object received should be calculated according to Planck's Blackbody Radiation Law.

由 Rayleigh-Jeans公式计算的物体的辐射功率与其物理温度成线性关系，但是随着物体频率的升高，Rayleigh-Jeans公式与Planck定律的近似误差越来越大，此时应根据Planck定律计算物体的辐射功率。

Solartransmittance and absorptance at any point,as well ascanopy net photosunthesis rate and transpiration rate,can be calculated.

根据此模型，可以计算冠层内任意高度和水平位置上的太阳总辐射和太阳光合有效辐射及其透过率和吸收率，可以计算冠层的净光合率和蒸腾率。

With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.

采用RTM-DRE研究热控涂层内辐射传递，结合Mie氏散射理论，考虑粒子吸收与散射、基料吸收、界面反射等因素影响，建立热控涂层表观光谱吸收率计算模型，验证计算模型的正确性，分析计算模型的计算误差与计算时间；在此基础上，通过计算热控涂层表观光谱吸收率来研究热控涂层表观光谱吸收特性，分析基料与粒子光学特性、粒子体积份额、粒径、界面反射特性、辐射能量入射角等因素的影响，初步研究空间环境因素对热控涂层表观光谱吸收特性的影响，采用系统灵敏度理论定量分析热控涂层表观光谱吸收特性变化对卫星温度的影响。

The paper presents a discussion on the characteristics of the solar radiation intensity and solar radiation absorption coefficient.

介绍了影响混凝土结构温度效应的太阳辐射强度和太阳辐射吸收系数的一般特性。

After fast Fourier transform , the amplitude and phase of the THz pulse wave is given, then the refractive index and absorption of the material in THz region is extracted.

它以THz辐射作为探测源，利用电光采样或光电导采样方法直接记录THz辐射电场的振幅时间波形，通过傅立叶变换得到测量信号振幅和相位的光谱分布，进而获得材料在THz波段的吸收和色散等信息。

ABSTRACT In this dissertation a number of theoretical and technical problems to be faced in applying synthetic aperture techniques to remote sensing of the earth are resolved, researching on synthetic aperture microwave radiometric imaging technology against the background of developing satellite microwave radiometric imaging system.

全文主要以星载微波辐射成像系统的研制为背景，对合成孔径微辐射成像技术进行了研究和探索，解决了将合成孔径技术移植到地球遥感领域存在的一些具。。。

A flame temperature can be determined from an analysis of the radiation spectrum emitted by a gas burning flame in conjunction with the use of an optimized alg o rithm. This approach simplifies the calibration of the absolute radiation intens ity of a flame as demanded by the conventional two color method.

通过对优化算法的尝试利用从气体燃烧火焰发出的辐射光谱拟合分析出火焰燃烧温度的方法，简化了传统测温用双色法所要求的火焰绝对辐射强度的标定，同时有助于了解火焰辐射黑度随波长的变化规律。

Based on the Maxwell equations,the basis principles of Cerenkov Radiation are reviewed, the angle-distributionformulas of Cerenkov Radiation are derived, the experiment principle and layout areintroduced.

文中从麦克斯韦方程组出发，推导了切伦科夫辐射的分布公式，总结了切伦科夫辐射的特征，介绍了切伦科夫辐射进行束流测量的原理与实验布置。

In recent years much attention has been paid to Superradiance because of its high peak power conversion efficiency, so far the devices based on Cherenkov SR regime have been well developed while the research on Cyclotron SR is still in the initial stage.

近年来超辐射现象由于其高峰值功率效率的特点逐渐受到重视，目前，基于契仑柯夫超辐射机理的器件已经发展的比较成熟。相比之下，回旋超辐射的研究则仍然处于起步阶段。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。