1)  band ratio
比值域值法
1.
Four methods,non-supervised classification,supervised classification,threshold values of NDSI and threshold values of band ratio,were used to extract the boundaries of 176 glaciers,including smaller ones and larger.
对1999年的喀拉米兰河克里雅河流内流区的Landsat ETM+影像运用非监督分类、监督分类,雪盖指数域值法和比值域值法提取其中176条冰川的边界信息,并与目视解译结果进行定量比较,结果表明:比值域值法精度最高,达98。
2)  Ratio
比值
1.
Advanced and Energy-saving Ratio Control Strategy in Mass Synthetic Ammonia Unit;
大型合成氨装置中的先进节能比值控制策略
2.
The Value of Serum tPSA、fPSA Concentration and the Ratio of fPSA/tPSA in the Diagnosis of Prostate Cancer;
血清fPSA、tPSA及其比值测定在诊断前列腺癌的价值
3.
Study on the correlation between the ratio of random urine protein to serum cystatin C and 24-hour urine quantitative protein;
随机尿蛋白与血清胱抑素C比值与24h尿蛋白定量的相关性研究
3)  rate
比值
4)  ThE ratio
ThE比值
5)  band ratio
波段比值
1.
Though band ratio is highly evaluated as a single method in oil-gas exploration,the effect is far from satisfactory.
在基于单一方法进行油气勘探的过程中,前人对波段比值的方法给了很高的评价,但效果均不显著。
2.
However,the rock texture can be enhanced by selecting band ratio and by using composite negative processing method based on DN value analysis of diff.
本文从统计、研究雪和岩石光谱特征曲线入手,结合研究区积雪对不同TM波段图像中地形响应的漫反射统计分析特点,采取波段比值+假彩色合成图像求反处理的方法,有效地突出了不同岩性的纹理信息,达到了区分岩类的目的。
3.
With the MODIS data from 2001 to 2005,areas of the tidal flats in the coastal zone of Fujian Province in China are calculated utilizing the band ratio of MODIS 250 m resolution of visible and near infrared band to high tidal level and low tidal level,and the results are verified by the 30 m resolution Landsat-7/ETM+ satellite image of the Luoyuan Bay and the Fuqing Bay.
以2001~2005年MODIS数据为信息源,每年选取高潮位和低潮位两个时相的MODIS数据,根据滩涂对MODIS 250 m分辨率可见光和近红外探测波数的光谱反应特性,采用波段比值算法来监测福建省海岸带的滩涂面积,并对监测结果用罗源湾和福清湾30 m分辨率的Landsat-7/ETM+影像进行验证分析,结果表明,MODIS数据的观测时间与海洋高低潮位时刻比较接近,便于对滩涂资源的遥感监测。
6)  N/P ratio
氮磷比值
1.
According to the monthly data collected from April 2000 to April 2001,the distribution of N/P ratio and its limitation to the growth of phytoplankton in the Sanya Bay are discussed adopting the standard which was founded to assess the stoichiometric limitations of nutrients (Justic, et al .
根据 2 0 0 0年 4月— 2 0 0 1年 4月的监测资料 ,采用Justic等[1 ] 建立的评估海水营养盐化学计量的限制标准 ,讨论了三亚湾氮磷比值分布及其对浮游植物生长限制的出现率。
参考词条
补充资料:比色分析法(见紫外—可见分光光度法)


比色分析法(见紫外—可见分光光度法)


  比色分析法见萦外一可见分光光度法。
  
说明:补充资料仅用于学习参考,请勿用于其它任何用途。