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脐橙VC含量近红外光谱消噪小波优化(Wavelet Optimization for Near-infrared Spectra Denoising of Vitamin C Content of Umbilical Orange)
脐橙 近红外光谱 小波基
2009/5/22
运用db1~db10等10个小波基4尺度分解对120个赣州脐橙样品的近红外光谱进行消噪处理,分别建立了各种小波消噪光谱的脐橙维生素C(VC)含量的PLS模型。通过PLS模型预测精度比较表明:所有db小波基变换都能有效消除脐橙VC近红外光谱噪声,PLS模型预测精度均高于不处理光谱建立的模型预测精度。其中,消噪效果最好的小波基是db5,模型预测值与实测值的相关系数R达到0.9427、内部交叉验证均方差...
Some physical properties of orange (var. Tompson)
physical properties orange static friction angle packaging coefficient
2008/11/24
Orange is among the popular fruits and of a high economical value. Sizing and grading of orange is needed for the fruit to be presented to local and foreign markets. A study of orange physical propert...
Assessment of Genetic Variability on Some Orange Accessions Using RAPD-DNA Markers
Orange Succary Summer orange Balady Abusoura Fruit characters RAPD-DNA and genetic analysis
2010/11/9
Seven local orange accessions; Acidless orange (succary), Valencia (summer orange), Common
orange (Balady) , Navel orange (Abusoura) and three unknown orange trees (No.1, 2 & 3) were collected from o...