Their structures were identified by spectral methods.
通过波谱方法鉴定了它们的结构。
METHODS:Isolation and identification were carried out by using various chromatography techniques and spectral methods.
方法：采用了各种层析分离技术，分得单体，经理化常数和光谱解析确定结构。
Methods Compounds were isolated by silica column chromatography, and their structures were elucidated by spectral methods.
方法用硅胶柱层析进行分离，用有机波谱学的方法进行结构鉴定。
With these spectral methods, the chemical composition and the structure of the polishing paste for plastics were identified.
通过上述光谱法确定了该塑料抛光膏的化学组成和结构。
Their method indicates that the mass of distant AGN black holes as estimated by other spectral methods is two to 10 times too high.
他们的研究方法表明，用其他光谱方法测量的遥远活动星系核的黑洞质量大概夸大了2-10倍。
Fourier Transform Spectroscopy is now one of the most important and useful spectral methods in infrared and far infrared region.
傅里叶变换光谱学方法是目前红外、远红外波段最重要的一种光谱方法。
Methods: the compounds were isolated by silica gel column chromatography, and their structures were elucidated by spectral methods.
方法：利用硅胶柱色谱法对化合物进行分离，运用波谱方法确定结构。
In this paper, the spectral methods based on the input output system theory (IOST) were used to compute quantities related to the gravity field.
本文所采用的基于输入-输出系统论的谱方法在计算结果的精度上与最小二乘配置方法相当，却很容易用于异性场的计算。
The structures of these compounds were determined as friedelin(1), 5 hydroxymethyl furaldehyde(2), limonin(3), nomilin(4), daucosterol(5)by spectral methods.
经光谱数据的分析，分别鉴定为木栓酮（1）、5羟甲基糠醛（2 ）、柠檬苦素（3）、闹米林（4 ）及胡萝卜苷（5 ） 。
The structures were elucidated on the basis of physicochemical properties and spectral methods and their anti-hypoxic activities were evaluated by PC12 cells.
对分离得到的化合物采用PC12细胞进行活性追踪，评价其体外抗缺氧活性。
Methods Three compounds were isolated by a combination of RP-18and silica gel column chromatographies, and their structures were identified by spectral methods.
方法采用硅胶和反相硅胶RP- 18柱色谱分离，运用有机波谱分析确定化合物结构。
Spectral methods: Considering the intricate radar clutter ambience, Which fluctuates greatly, it's needed to adapt spectral estimation firstly, then suppress clutter spectrum.
谱估计方法：由于雷达杂波环境非常恶劣，起伏变化很大，需要先估计杂波谱再抑制杂波。
Methods DEAE-Cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharides, whose structures were characterized by chemical and spectral methods.
方法采用DEAE -纤维素柱色谱和凝胶渗透色谱分离纯化，化学和光谱方法分析其结构特征。
METHODS DEAE-cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharide whose structure was characterized by using chemical and spectral methods.
方法采用DEAE-纤维素柱色谱和凝胶渗透色谱进行分离纯化，化学及光谱方法进行结构分析，并进行免疫及降血糖药理活性测试。
Methods DEAE-cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharides whose structures were characterized by using chemical and spectral methods.
方法采用DEAE -纤维素柱色谱和凝胶渗透色谱进行分离纯化，化学和光谱方法分析其结构特征。
Interaction between trypsin and CamptothecinThe interaction of trypsin with camptothecin (CPT) in vitro was studied by ultraviolet (UV) absorption spectral and fluorescence spectral methods.
通过紫外光谱和荧光光谱的方法研究了喜树碱与胰蛋白酶的体外相互作用。
Residual lignins from sodium sulfide pretreatment kraft pulping were studied by chemical and spectral methods. Sodium sulfide pretreatment can promote sulfur combining chemically with lignin.
用化学和波谱分析研究了硫化钠预处理硫酸盐制浆中残余木质素的化学结构特性。
ResultsThe chemical, TLC and spectral methods were used to determine the structures of the isolated compounds. 16 kinds of amino acids, 2 kinds of sugar and flavonoid compositions were confirmed.
结果经化学、TLC和波谱学方法进行结构鉴定，确定为16种氨基酸，两种糖及黄酮类成分。
Tomget sharper spectral lines, they started by successfully developing nonlinear methods such as saturation or two-photon spectroscopy.
为了获得更加清晰的光谱线，他们成功发现了非线性方法像磁性饱和和双光子光谱学。
There are many methods in its quantitative spectral analyses.
光谱分析仪的定量分析有许多种方法。
Common methods for Q-value calculation are rise-time method, spectral ratio method, spectrum modeling method, wavelet modeling method and so forth.
通常用于求取q值的方法有升时法、频谱比法、谱模拟法及子波模拟法等。
The spectral interferences from zirconium to the spectral lines of the elements determined were investigated and corrected by the matrix matching and background correction methods.
选择了合适的分析谱线，采用基体匹配法和背景扣除法消除基体元素对被测元素的光谱干扰。
The spectral interference and physical interference from Fe to the spectral lines of the elements determined are investigated and corrected by the matrix maching and background correction methods.
研究了铁基体元素对被测元素光谱线的光谱干扰与物理干扰，采用背景扣除法与基体匹配法进行校正。
Using TM data and image process software ENVI3.2, the winter wheat area and distribution information were obtained by methods of Spectral Angle Mapper and man machine interactive interpretation etc.
应用陆地卫星TM资料和遥感图像处理ENVI3.2软件，以监督分类波谱角法、人机交互等方法提取冬小麦面积及分布信息。
The methods of computation and realization of signal power spectral density are mainly discussed.
文中主要描述了信号功率谱的计算和实现方法。
A new technique is described in this paper for the star detection on daytime cloudless sky background which allows the hybrid methods of spectral filtering and polarization.
本文描述了一个在白天无云天空背景下同时应用光谱滤波法和偏振技术对星体进行探测的新方法。
Different spectral data preprocessing methods and spectral regions have influences on the performance of model established.
不同光谱数据预处理方法和谱区范围，影响建立定量分析模型的质量。
Using the methods of time series spectral analysis and Kalman filter, this article discussed the additive problems of two stochastic processes, mainly Auto Regression Moving Average (ARMA) processes.
本文利用时间序列谱分析和卡尔曼滤波的方法讨论了两个随机过程，主要是自回归滑动平均(ARMA)过程，的叠加问题。
When optimizing the model for the small-sample rapeseed, all of the spectral pretreatment methods should be selected. The best model was then selected according to the optimizing result.
优化油菜小样品模型时，应该选择全部的预处理方法，根据优化结果选择最佳模型。
When optimizing the model for the small-sample rapeseed, all of the spectral pretreatment methods should be selected. The best model was then selected according to the optimizing result.
优化油菜小样品模型时，应该选择全部的预处理方法，根据优化结果选择最佳模型。
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