反射物

The small concrete blocks and big concrete plate were constructed for the experiment. The dielectric constant and the attenuation index obtained by the first 1 and 1/2 waveforms reflected from the concrete surface are used as the parameters.

研究使用1GHz天线，经由实验分析采用抬高天线与受测物距30cm方式检测混凝土，将测得混凝土反射波形计算出介电常数，并选择反射脉冲波形1又1/2振幅面积来做为量测标的，将火害前后振幅面积计算求得衰减常数，比较火害前后混凝土之差异性。

Taking the Kubelka-Munk laws as foundation,the light interaction of ink and paper by existing models has been analyzed,including surface reflection of ink and multiple intemal reflection of paper,and light absorption and scattering and so on,the Clapper-Yule color prediction model has been modified aiming at the two possibilities of long and short distance of light scattering in newspaper.

以Kubelka-Munk定律为基础，研究了油墨、新闻纸在印刷中墨层的表面反射、承印物纸张内的多重内反射、墨层内光的吸收和散射，针对其中的光散射距离的长短两种可能，修正了Clapper-Yule颜色预测模型，引入代表长短光散射距离的比例系数h，建立了新的颜色预测模型，计算得到h=0.43。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

Be like a dustless mirror that clearly reflects everything, but on which nothing adheres.

要做无尘的反射镜，明鉴一切物，不沾一切物。

Be like a dustless mirror that clearly refects everything, but on which nothing adheres.

May。五月「要做无尘的反射镜，明鉴一切物，不沾一切物。

This paper discusses the classification of seabed sediment using normally incident, high frequency sound pules.

本文提出一种垂直入射声脉冲遥测海底表层沉积物类型的方法。一些作者已经指出，海底反射系数可以作为特征量用于识别沉积物类型。

The results show when formations contains a single vertical parallel fracture system, the amplitude of reflected P-wave is more sensitive than velocity for different infillings of vertical fractures; the anisotropy increases as fracture density increasing; the anisotropy of gas-bearing fracture is stronger than the fracture saturated with fluid.

研究结果表明，当地层中含有单组垂直的平行裂隙时，反射P波振幅对垂直裂隙中充填物的敏感性大于速度对裂隙中充填物的敏感性，随着裂隙密度的增加，P波各向异性程度也相应增强，裂隙中含气时，各向异性程度较含饱和水时强。

By elemental anal., molar conductivity, TGA, DSC, and reflectance spectroscopy, all bridged heteronuclear complexes were characterized. Imidazolate bridges exist in the heteronuclear complexes. From the ESR spectra of the bridged heteronuclear complexes in solution, the bond parameters of Cu2+ were calculated and nature of the bond discussed.

对它们进行了元素分析、差热失重分析、摩尔电导测定及反射光谱研究，确证了配合物的组成及分子中咪唑桥的存在，通过对各配合物的ESR谱测定，得到了它们的自旋Hamilton参数和键参数，讨论了配合物的成键性质。

One monolayer of CSB deposited on Au/Ge(111)-√3 at 220 K followed by cooling to 100 K leads to the formation of a well ordered (2×1) structure as observed by LEED. The TPD spectra for CSB thermal desorption from Au/Ge(111)-√3 exhibit showed two well-resolved peaks at Tp = 243 and 274 K corresponding to multilayer and monolayer desorption, respectively.

我们也尝试利用LEED观察二苯乙烯吸附在(√3×√3)R30°表面的规则排列，并且成功看到(2×1)的LEED绕射图谱，另外我们也架设一组氦氖雷射来测定表面上吸附物的光学反射率变化，在金属覆盖的锗(111)单晶表面上，确定Au覆盖量不同会造成反射的变化。

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。