查询词典 optical spectroscopy

With the method of differential optical absorption spectroscopy, aerosol extinction coefficient was measured.

在研究、分析国外学者的研究基础上提出采用单光路法并结合大气在550nm处的能见度校准的方法测量气溶胶消光系数的研究计划。

The present work reports experimental determinations of atomic hydrogen in microwave discharge hydrogen plasmas formed from TM01 MW mode in an ASTeX-type reactor via optical emission spectroscopy by using Ar as an actinometer.

本论文的工作是在ASTeX型号的放电设备中产生TM01模式的微波，通过微波放电产生氢等离子体。本实验通过发射光谱运用内标气体氩，对氢等离子体中的氢原子Blamer线系和氩原子750.4 nm 处的谱线的相对强度进行了实验测定。

The braze and interfacial microstructures were characterized by optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy.

在钎焊和界面微观结构的特点是光学显微镜，扫描电子显微镜和能谱。

With excellent response characteristics, high detection sensitivity and low operational cost, differential optical absorption spectroscopy is a powerful tool to trace concentration variation of trace HCHO.

差分吸收光谱技术由于时间分辨率高、高灵敏度和操作费用低等特点非常适合对大气中痕量气体HCHO进行实时追踪。

In chapter Ⅶ the perturbation theory on the optical ac Stark effect (see chapter Ⅳ) is applied to study the NMR spectroscopy in paramagnetic and diamagnetic systems.

在第七章，我们将第五章中应用于ESR系统的光移动的处理方法推广应用到NMR体系，探索研究了在激光场的作用下，顺磁体系和具有简并激发态的逆磁体系的NMR谱的变化，提出关于激光诱导的NMR频移的理论。

Influence of particle Mie scattering on differential optical absorption spectroscopy.

颗粒物Mie散射对差分吸收光谱技术的影响。

The microstructures and optical properties of the films were characterized with X-ray diffraction, small angle X-ray reflection, and ultraviolet visible absorption spectroscopy.

通过直流反应磁控溅射的方法制备了氧化铅薄膜，并通过XRD和紫外－可见光吸收谱对薄膜的晶体结构和光学性能进行了表征。

This paper reports results of Tin doped fibre pumped by a semiconductor laser diode as an optical source for methane gas detection. The spectral characteristics of the Tm doped fibre pumped by the 788 nm laser diode is studied experimently and the fibre source is used in a correlation spectroscopy measurement system.

报道了以半导体激光器泵浦掺Tm3+光纤为光源的甲烷气体相关光谱检测系统，研究了788 nm波长泵浦下掺Tm光纤光源的一些光谱特性，并在实验上用这种光源及系统对甲烷气体作了测量。

The device can measure vacuum ultraviolet spectroscopy within a certain range of wavelength simultaneously, and achieve the optical spectrum and pixel resolution of glancing incidence grating vacuum ultraviolet spectrometer, the testing time responses well and the device has high sensitivity; the moveable component is not needed in the vacuum cavity, and the structure is simple and reliable.

本装置有同时测量一定波长范围内真空紫外光谱的能力，并达到掠入射光栅真空紫外光谱仪的光谱和像素分辨率，检测的时间响应好且有很高的灵敏度；真空腔体内无需可移动部件，结构简单可靠。

There are three categories of maturity indicators of organic matter in current petroleum industry to evaluate the degree of thermal evolution for source rocks, including: 1 optical indicators, i.e., vitrinite reflectance, bitumen reflectance, sporopollen color and thermal alteration index, conodont color alteration index, and reflectance of fossil fragments; 2 chemical indicators, i.e., the maximum temperature in pyrolysis of organic matter, methyl phenanthrene indicator, the atomic ratio of H/C, carbon isotope indicator, and biomarker indicators; 3 indicators of spectroscopy, i.e., the free radical concentration of kerogen, the average structural scale of aromatic nucleus of kerogen, and the laser-Raman spectrum of organic carbon.

摘 要：当前常用的有机质成熟度指标包括3大类：1 光学指标，包括镜质体反射率、沥青反射率、孢粉颜色、热变指数(thermal alteration index， TAI)、牙形石色变指数(color alteration index， CAI)和生物碎屑反射率；2 化学指标，包括有机质最大热解峰温度、甲基菲指数(methyl phenanthrene indicator， MPI)、H/C原子比值、碳同位素指标和生物标志物指标；3 谱学指标，包括干酪根的自由基浓度、干酪根芳核平均结构尺寸和有机碳激光拉曼光谱。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。