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GEO-INFO GRAPH SPECTRUM ANALYSIS FOR REPRESENTING DISTANCE RELATIONS IN GIS
Spatial Distance Geo-info Graph Spectrum, Spectrum Analysis
2014/6/12
Distance is a fundamental concept in spatial sciences. Spatial distance is a very important parameter to measure the relative positions between spatial objects and to indicate the degree of similarity...
基于小波和双谱分析的湍流相干结构辨识（Identification of Turbulent Coherent Structures Based on Wavelet and Bi-spectrum Analysis）
湍流信号 相干结构 双谱
2009/11/24
为了从湍流信号中获取更多关于相干结构的定量信息，提出了一种基于小波和双谱分析的辨识相干结构的方法。该方法通过双谱和互相关分析合理地得到了包含相干结构信息的大涡信号，利用小波变换有效地提取出表征湍流多尺度相干结构的信号成份。建立了基于小波分析辨识湍流含能尺度的能量最大准则，以沟槽壁面减阻机理实验的湍流数据分析为例，验证了该方法的合理性和可靠性。
基于激光诱导荧光光谱分析的黄瓜叶片叶绿素含量检测（Detecting of Chlorophyll Content of Cucumber Leaves Based on Laser-induced Fluorescence Spectrum Analysis Technique）
叶绿素含量 激光 叶绿素荧光
2009/11/3
0.93，p0.93, p<0.001) in this excitation light source condition. This research doesn’t only extend the scope of the application of chlorophyll fluorescence detection technology, but also provides a the...
Singular Spectrum Analysis of Gene Expression Profiles of Early Drosophila embryo: Exponential-in-Distance Patterns
Singular Spectrum Analysis Gene Expression Profiles Early Drosophila embryo Exponential-in-Distance Patterns
2009/9/4
We present investigation of gene expression profiles by means of singular spectrum analysis (SSA). The biological problem under investigation is the decomposition of bicoid protein profiles of Drosoph...