The structures were determined by 1D and 2D NMR techniques.
运用~H、~(13)C NMR谱、APT谱及各种二维NMR谱,结合其它理化数据,首次确定了它们的化学结构,分别命名为崖椒内醐和乙酯氧崖椒内酯。
With two-dimension spectrum entropy indexes being selected as character indexes in feature abstraction of defect, the seamless tube flaws were recognized by the improved fuzzy adaptive Hamming NN(Neural Networks) algorithm.
作者研究了无缝钢管内伤、外伤及孔洞等缺陷信号的频域特征,提取信号二维谱熵指标作为特征指标,运用改进的模糊Hamming神经网络识别方法,对无缝钢管的缺陷进行识别。
Then, inputting the two-dimension spectrum entropy into the SVM classification, the result shows that SVM has fine compute efficiency and classified ability.
进一步将二维谱熵作为支持向量机(SVM)分类器的输入量,结果表明SVM具有良好的分类能力和计算效率,可以满足在线监测的要求。
ANALYSIS APPLICATION OF COMPREHENSIVE TWO-DIMENSIONALl GAS CHROMATOGRAPHY TIME-OF-FLIGHT MASS SPECTROMENTRY IN PETROLEUM GEOLOGY
全二维色谱飞行时间质谱在石油地质样品分析中的应用
Comprehensive two-dimensional gas chromatography and it s application in forensic science;
全二维气相色谱在刑事技术中的应用
Detection of TNT in explosive residues by two-dimensional gas chromatography
二维气相色谱检测爆炸残留物中TNT
Determination of benzene and toluene in gasoline by two-dimensional gas chromatography and capillary column
采用二维气相色谱及毛细管色谱柱分析汽油中苯和甲苯的含量
Study of the Interface and System of Comprehensive Two-dimensional Liquid Chromatography;
全二维液相色谱接口技术研究及系统构建
Analysis of Volatile Compounds in Beer by Comprehensive Two-dimensional Gas Chromatography/time-of-flight Mass Spectrometer;
全二维气相色谱技术测定啤酒挥发组分
Design of Two-Dimensional Liquid Chromatography Control System Based on.NET Platform
基于.NET平台的二维液相色谱仪控制系统设计
Construction and Evaluation of High Temperature Two-Dimensional Liquid Chromatography System
高温二维液相色谱系统的构建及其评价
Methodology of Comprehensive Two-dimensional Gas Chromatography /Time-of-Flight Mass Spectrometry for Complex Sample Analysis
全二维气相色谱/飞行时间质谱用于复杂体系分析的方法学研究
Identification of Difference of Proteins Between Human Stomach Tumor and Healthy Tissues by Two-dimensional Liquid Chromatography-Mass Spectrometry
全二维微柱液相色谱-质谱鉴定人胃癌组织中的差异蛋白质
Two-Dimensional Gas Chromatography-Time of Flight Mass Spectrometry Analysis of Tobacco Flavor
烟用香精的全二维气相色谱-飞行时间质谱定性分析
Two-dimentional liquid phase chromatographic proteome profiles in Uighur women with uterine cervix cancer
维吾尔族妇女宫颈癌患者血清蛋白质组的二维液相色谱分析
Development of Novel CO_2 Cool-jet for Comprehensive Two-dimensional Gas Chromatography and Study of Related Data Process Method;
基于CO_2冷喷的全二维气相色谱及相关数据处理方法
Construction of Two-dimensional Liquid Chromatography System and Its Application in Bio-samples Analysis;
二维液相色谱系统的构建及在生物样品分离中的应用
Two-dimensional Capillary GC for the Analysis of Aromatics in Gasoline, Aviation Kerosene and Diesel Fuel by Normalization Method;
二维气相色谱归一化法定量分析汽油、航空煤油和柴油中的芳烃
Separation of Active Components from Licorice by Simulated Moving Bed and Two-dimensional Liquid Chromatography;
甘草活性成分的模拟移动床和二维液相色谱分离
Construction and Evaluation of Weak Retention Components Collection Mode-IEX/RP Two-Dimensional Liquid Chromatography System
IEX/RP二维液相色谱中弱保留组分收集模式的构建及系统评价
GC×GC Measurements of Atmospheric Aromatic Compounds near a Busy High-speed Road in Beijing
全二维气相色谱法测定北京交通干道大气中芳香烃
