谱

For the new compound of 1,2,5-selenadiazolo [3,4-d] pyrimidine-5,7-(4H,6H) dione, two peaks with the same mass spectra could he observed in the GC separation, which were considered to be its two isomers.

新化合物1，2，5-硒二唑并[3，4-d]嘧啶－5，7-(4H，6H)二酮在色谱柱内出现11.83min和7.96min两个具有相同的质谱的色谱峰，被认为是互变异构体的峰。

Methods The color doppler flow sonographic features (Siemens Acuson Sequoia 512 ) and transcranial Dopper indexes (MT-3000) of carotid arteries in 185 patients with vascular vertigo were observed and evaluated prospectively.

方法应用西门子Acuson Sequoia 512彩色多谱勒超声显像仪与MT-3000经颅多谱勒仪回顾分析185例血管性眩晕患者的颈部血管彩超与经颅多谱勒检测结果。

The main contents of spectrometric analysis and ferrographic analysis technique,and its application in condition monitoring of dredger diesel engine were discussed.

分析研究了光、铁谱分析技术的主要内容及其在挖泥船柴油机状态监测中的作用，阐述了光、铁谱分析技术用于柴油机故障诊断的依据和理论基础，重点研究了经济、有效的油液铁谱分析技术、油液光谱分析技术在柴油机状态检测与故障诊断中的应用方法。

We explained special behavior of CVI2270〓 emission line on the result of particle and impurity transport.

介绍了弦积分杂质谱线线型分布的处理方法，利用杂质谱谱线线型分析得到了等离子体离子温度和旋转速度。

Acetone extractives in masson pinegroundwood pulp were isolated and analyzed through the employment of DEAE-Sephadex ion exchange chromatography and GC/MS.

利用DEAE－Sephadex离子交换色谱和气相色谱－质谱联用技术，对马尾松磨木浆丙酮抽出物的化学成分进行了分离及分析。

Used for rev erse phase and ion pair chro matography; ion exchange resins used for ion exchange

被用于反相色谱和离子对色谱，离子交换树脂用于离子交换色谱而硅胶或微孔玻璃珠用于分子排

Based on the previous literatures, the following major innovation works were carried out in this dissertation:(1) The derivatization reaction conditions of ephedrine and pseudoephedrine with sensitive derivation reagent in aqueous system were studied and two new methods were developed for the assay of them by microemulsion electrokinetic chromatography and micellar electrokinetic chromatography with LIF detection. The sensitivity and analysis times were greatly improved compared with the previous reports;(2) A new method of CZE with indirect LIF detection was developed for the simultaneous determination of six coumarin compounds (esculin, esculetin, isofraxidin, genistein, naringin and sophoricoside) with fluorescein as the probe. The proposed method enlarges the application range of LIF detector, and provides new approach for the analysis of certain compounds difficult to derivatize;(3) Based on the above research, an MEKC with indirect LIF detection method for the simultaneous determination of adenine and guanine in DNA extracts from fungus, maize and soybean was established;(4) A new method for the investigation of the complexes formed between human serum albumin and ampicillin sodium under the simulated physiology conditions using laser light scattering technique was developed.

该论文在综述前人工作的基础上，开展了如下未见文献报道的创新性的研究工作：(1)使用灵敏的衍生试剂对麻黄碱和伪麻黄碱在水体系中的衍生反应条件进行了系统研究，建立了微乳电动色谱-激光诱导荧光检测法和胶束电动色谱—激光诱导荧光检测法测定麻黄碱和伪麻黄碱的灵敏分析新方法，与以前的报道相比，灵敏度和分析时间均有很大改善；(2)使用荧光素钠作为背景荧光试剂，建立了同时分析测定六种黄酮类化合物(秦皮甲素、秦皮乙素、异秦皮定、染料木素、柚皮苷和槐角苷)的毛细管区带电泳—间接激光诱导荧光检测新方法，扩大了激光诱导荧光检测的应用范围，对难衍生化合物的分离分析提供了一种新思路和新途径；(3)以荧光素钠作为背景荧光试剂，建立了一种用于同时测定食品提取DNA中的腺嘌呤和鸟嘌呤含量的胶束电动色谱—间接激光诱导荧光检测新方法；(4)用动态和静态激光散射法研究了模拟生理条件下人血清白蛋白与氨比西林钠盐相互作用所形成的复合物，为药物分子与蛋白质的相互作用、药代动力学等的研究提供了一种新思路。

To further understand and correctly master the notion of marginal spectrum in Hibert-huang transform, the linear property of marginal spectrum is demonstrated, an mistake to the notion of marginal spectrum in some documents is pointed out, and a new viewpoint about the essential difference between marginal spectrum and Fourier frequency spectrum is put forward by which the amplitude of Fourier frequency spectrum only represents the probability that a frequency objectively exists in a signal while the amplitude of marginal spectrum decides whether a frequency objectively exists in a signal.

为了深入理解和正确掌握希尔伯特－黄变换（Hilbert-Huang Transform，简称HHT）中的边际讲概念，证明了边际谱的线性性质，指出了文献中对边际谱概念的一种误解，提出了边际普与Fourier频谱之间本质区别的一种的新观点，即Fourier频谱的幅值只能反映频率在信号中实际存在的可能性大小，而边际谱的幅值则能真实反映频率在信号中是否存在。

According to spectral characteristics of the HCVAW arc in a body, energy factor which value equals to the ratio of two spectral lines' intensity, was defined.When τ's value was less than 0.1, the HCVAW arc was exhibitive of diffusedshape with lower energy density instinct; and when τ's value was higher than 0.5,the arc was a fine-constricted arc with higher energy density.

从积聚态电弧的谱线空间分布来看，阳极材料为水冷铜板时，自空心阴极端面到阳极工件，氩原子谱线相对辐射强度具有比氩一次离子谱线相对辐射强度更快的减弱趋势，最大辐射强度均出现在距空心阴极端面2mm左右的位置。

A genetic algorithm based on feasible field constraint and shared niche technique is introduced to enable this RBFNN to acquire the ability of reconstruction.

最后将具有结构自学习能力的 RBFNN成功地引入至谱图的重叠峰解析辨识研究中，试图建立一种适应光谱和色谱谱图重叠峰解析辨识的统一架构，并达到了预期的目的。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。