光谱分析

Cyclostratigraphy was born in 1980s as a subdiscipline of stratigraphy. Based on the Milankovitch theory, outcrop sections and cores are analyzed with methods such as geochemistry, spectrum analysis, and time-sequence analysis to study the complex responses of orbital forcing to sedimentary records.

旋回地层学作为一门独立的地层分支学科诞生于20世纪80年代，它以米兰科维奇天文轨道旋回为理论基础，以露头剖面、岩心等为研究对象，应用地球化学、光谱分析和时间序列分析等方法，研究天文轨道参数周期性变化在地层记录中的沉积响应。

IR spectrum analysis shows that there are contain-oxygen functions and substitutive groups in coal macromolecular.

煤的红外光谱分析表明，煤中仍然存在含氧基团和一定数量的取代基，可得到芳氢率参数。

In order to prevent grains from congregating so as to minish the size of the powder, the growing rate of the crystal grain was controlled during the hydrolysis of tetra-nbutyl titanate by using the competitive reactivity of the surface modifier sulfhydrate.

动态分子光谱分析法示踪了偶氮染料、取代酚在TiO〓半导体界面/溶液的光降解动力学行为，发现了中间体生成和衰减的峰形动力学特性，应用误差补偿理论拟合了中间体的峰形动力学曲线。

XRD and IR spectra studies showed that the product consists mainly of non-crystal and PO is built up tetrahedrally.

IR光谱分析产品中的磷酸根离子局部对称性为正四面体结构。

Target transformation factor analysis was used to correct spectral interference in inductively coupled plasma atomic emission spectrometry for the determination of rare earth impurities in high purity thulium oxide.

将目标因子分析用于电感耦合等离子体原子发射光谱分析对高纯氧化铥中稀土杂质的测定及光谱重叠干扰校正。

Preliminary study of the modification mechanism thermal stability of the membrane was performed by using fourier transform infrared spectrophotometry-attenuated total reflectance and differential scanning calorimetry.

研究硼酸对丝胶／聚乙烯醇膜材料的力学性能和耐溶失性能的影响，利用红外光谱分析和差示扫描量热分析研究硼酸对材料的改性机制和热稳定性。

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 UV-visible spectra show two bands corresponding to the transverse and longitudinal surface plasmon absorption at 532 and 720 nm, respectively, for the colloidal GNFs.

可见紫外线光谱分析显示，胶状纳米金花的横向和纵向表面等离子体的吸收波段分别是532和720纳米。

The calculated results show: the ground state structures of PtNi5, Pt2Ni4 and Pt3Ni3 clusters are quadrangular bi-pyramid, and Pt4Ni2 and Pt5Ni clusters are triangular bi-pyramid with hat and triangular pyramid with quadrilateral, respectively. From the point of view of thermodynamics, PtnNim clusters are stable because of the negative enthalpy of formation; the positive NICS of PtNi5 clusters show anti-aromaticity, The negative NICS of Pt2Ni4 and Pt5Ni clusters show aromaticity. The number of the IR absorption peak of Pt3Ni3 is the most. The IR and raman absorption peak of PtNi5 , IR of Pt2Ni4, Raman of Pt3Ni3 and Pt4Ni2 have only one. The absorption peak of Pt5Ni appears in the bigger frequencies only, and is zero almost in the small frequencies.

研究结果表明：PtNi5、、Pt2Ni4、Pt3Ni3团簇的基态结构都为四角双锥结构，Pt4Ni2 和Pt5Ni团簇的基态结构分别是戴帽三角双锥和三角锥戴四边形结构；PtnNim团簇的生成焓都为负值，表明团簇在热力学上是稳定的；由NICS值可得，PtNi5团簇具有反芳香性，Pt2Ni4和Pt5Ni团簇具有芳香性；从光谱分析来看，Pt3Ni3团簇的IR较强吸收峰的个数最多，PtNi5团簇的IR和Raman、Pt2Ni4团簇的IR、Pt3Ni3和Pt4Ni2团簇的Raman只有一个强吸收峰值，Pt5Ni团簇的峰值只出现在频率较大的位置，频率小的位置几乎为零。

Using extensie MS, U, and NMR spectral analyses, the structure has been established as compound 1, aureoerticillactam, a 22-atom macrocyclic lactam incorporating both triene and tetraene conjugated olefins.

运用包括质谱、紫外及核磁共振的多种光谱分析，解析确定了该化合物1的结构，是一个含有共轭三烯和共轭四烯的22元环大环内酰胺。

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。