1) 2D NMR
二维谱
1.
THE STUDIES ON 2D NMR SPECTRA OF TWO CHROMONE DERIVATIVES;
两个色原酮衍生物的二维谱研究
2.
Complete ~1H NMR and ~(13)C NMR Assignments to Sarcophine by 2D NMR Experiments;
本文利用~1H-~1HCOSY,HMQC,HMBC等二维谱手段首次对Sarcophine所有~1H NMR、~(13)C NMR的信号归属进行了完全的指定。
2) two-dimensional spectrum
二维谱
1.
After the simulation of the well surrounded by two and three stratums,the two-dimensional spectrum is calculated while the curve of wave slowness changes with the frequency is drawn.
分别计算了井外有两层、三层介质时井内声波传播的二维谱,绘制了时差随频率的变化曲线。
3) 2D NMR
二维NMR谱
1.
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。
4) two-dimension spectrum entropy
二维谱熵
1.
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。
2.
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。
补充资料：耒阳令曾君寄禾谱农器谱二书求诗
【诗文】：
欧阳公谱西都花，蔡公亦记北苑茶，农功最大置不录，如弃六艺崇百家。
曾侯奋笔谱多稼，儋州读罢深咨嗟。
一篇秧马传海内，农器名数方萌芽。
令君继之笔何健，古今一一辨等差。
我今八十归抱耒，两编入手喜莫涯。
神农之学未可废，坐使末俗惭浮华。
【注释】：
【出处】：
欧阳公谱西都花，蔡公亦记北苑茶，农功最大置不录，如弃六艺崇百家。
曾侯奋笔谱多稼，儋州读罢深咨嗟。
一篇秧马传海内，农器名数方萌芽。
令君继之笔何健，古今一一辨等差。
我今八十归抱耒，两编入手喜莫涯。
神农之学未可废，坐使末俗惭浮华。
【注释】：
【出处】：
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条