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The weight ratio of riboflavin and anthrone, the weight of dispersing system LDPE and the heating time is studied during making the organic luminescent films. The possibility of achieving organic WLED using ax — 17 and zq — 13 is investigated. According to the theory of linear system, a new way of calculating the efficiency of fluorescence resonance energy transfer is investigated and it is proved by experiments.

在有机白光LED方面，本文考察了有机荧光物质核黄素和蒽酮之间质量比、分散系聚乙烯质量和成膜时间对有机发光薄膜荧光光谱的影响；探讨了使用有机荧光颜料ax—17和zq—13实现有机白光LED的可能；根据线性系统理论，提出利用供体发射谱和受体激发谱的类卷积积分估算荧光共振能量传递效率的新方法，并进行了实验验证。

SR-B, a colorless crystal antimicrobic compound, was extracted and purified from broth of marine actinomycete N331 isolated and screened from sea mud. Its molecular structure was characterized by MS and various NMR spectra.

从分离筛选的海洋放线菌N331的发酵液中分离、纯化得到一种无色结晶抗菌化合物SR-B，通过对其质谱、多种核磁共振谱的结构信息进行分析，鉴定其分子结构。

Methods:Paticipants consisted of 32 simple VSD patients and 27 simple PDA patients excluded of any other diseases by physical examintation and electrocardiogram and x-ray. Patients were suggested echocardiography before and one week after the surgerys. Parameters such as Left ventricular ejection fraction、Fractional shortening、Left ventricular end-diastolic dimension、Left ventricular end-systolic dimension、Heart rate and Aortal velocity peak were measured.further more ,the Tei index which is originated from Pulse-wave Doppler and Tissue-Doppler Imaging were also calculated under ECG monitoring.

研究对象与方法：研究对象分别为排除其它心脏疾患的单纯动脉导管未闭患儿及单纯室间隔缺损患儿，手术治疗前后于心电监护下先行常规超声检查，获取心率、R-R间期、左室射血分数、主动脉峰值流速、左室收缩末期内径及左室舒张末期内径等值，并分别利用频谱多谱勒及组织多谱勒法测取患儿左室Tei指数(即PW-Tei及TDI-Tei)，多次测量并取其均值。

The quantity computed is the expected clutter power at the output of any specified range gate by the method of integrating reflected energy between constant Doppler loci in range-gate circles with a model of sum and difference antenna gain pattern for APAR. Base on the analyzing of APAR terrain clutter spectrum, Rayleigh, Correlated Log-Normal and Weibull distribution terrain clutter of APAR general pulse signal was simulated with the method of zero memory nolinearity transform.④The Doppler frequency of target echo is simulated on video frequency in this dissertation.

该软件采用了用C语言建立框架结构，而在程序高重复部分和有运算速度要求的地方，用汇编语言编写具有高并行能力程序的方法，不仅满足了系统高运算速度和实时性的要求，也使得软件系统结构模块化，代码具有良好的维护性和重用性；③对机载相控阵雷达HPRF、MPRF的和、差通道地面杂波功率谱进行了较为全面的研究，通过建立由四个子波束构成的机载相控阵雷达杂波和差波束天线方向图数学模型，选取体现高度线杂波的修正的地面后向散射模型，以载机平飞为例，采用沿距离门——等多普勒线区域积分的方法，得到了杂波功率谱，并利用零记忆非线性变换法实现了机载相控阵雷达常规脉冲情况下瑞利分布、对数正态分布和韦布尔分布地面杂波的模拟；④提出了采用在视频上对目标回波的多普勒频率进行模拟的方法。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

The acquisition method of volatile compounds, from different mechanical damage exent of oriental arborvitae, are the dynamic headspace body of improved air circulation Acquisition Act.

利用改进了的动态顶空气体循环采集法，对受不同程度机械损伤侧柏木释放的挥发物进行了采集粗提，通过热脱附冷阱-气相色谱-质谱联用仪进行了提取分析鉴定。

MethodsThe methanol extracts of the pericarp of Arnebia euchroma oil extract were separated with various chromatography technologies to produce some pure compounds and their structures were elucidated by spectroscopic and chromatographic methods.

方法利用色谱法对中药紫草油膏中的化学成分进行分离；利用核磁共振、质谱波谱方法对分离得到的单体化合物进行结构鉴定。

MethodsThe methanol extracts of the pericarp of Arnebia euchroma oil extract were separated with various chromatography technologies to produce some pure compounds and their structures were elucidated by spectroscopic and chromatographic methods.

方法利用色谱法对中药紫草油膏中的化学成分进行分离；利用核磁共振、谱波谱方法对分离得到的单体化合物进行结构鉴定。

Objective To establish the chromatographic fingerprint analysis for the quality control of Radix Astragali.

摘要目的建立黄芪药材的高效液相色谱指纹图谱，研究不同产地黄芪药材的质量，建立评价黄芪质量优劣的色谱指纹图谱分析方法。

Methods: A HPLC-MSD method was established to determine the content of astragaloside Ⅳ in Radix astragali.

建立高效液相色谱一质谱检测器测定黄芪皂苷Ⅳ含量的方法。

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。