查询词典 diffraction spectrum

The evolution on Raman spectrum detection technology for diagnosis of cancer, including skin cancer, galactophore cancer, liver cancer, lung cancer, cervix cancer and else tissue cancer, is introduced in this paper, moreover, the deficiency and novel development of Raman spectrum detection technology are discussed.

综述了拉曼光谱测量技术在癌症诊断中的研究概况，其中包括皮肤癌、乳腺癌、胃癌、肝肺癌、宫颈癌及其它组织癌。同时介绍了拉曼测量技术中存在的问题，并展望了拉曼光谱测量技术在癌症诊断中的发展前景。

The Davenport' s spectrum of gustiness in high winds is used for the representation of the random variance of confused wines,and the rolling spectrum of ships in confused winds is obtained.

风能谱密度表示，并求船舶在不规则风中的横摇能谱密度，进而讨论横摇运动的统计特征值。

The results revealed that there were 5 genetically homogeneous accessions having only one hordein spectrum biotype and 15 genetically heterogeneous accessions having 2~6 hordeins spectrum biotypes.

为了给大麦种质的保存和更新提供依据，采用醇溶蛋白电泳技术对20份大麦种质（每一份种质各有两个繁殖年份不同的供试材料）进行了遗传完整性分析。

The spectrum and electrochemical adsorption behavior and mechanism of diethyl dithiocarbamate on jamesonite were investigated by spectrum analysis and constantpotential step.

采用光谱分析及恒电位阶跃法，研究了乙硫氮在脆硫锑铅矿表面吸附的光谱电化学行为及作用机理。

The infrared spectra of latosol and red soil fall into the kaolinite spectrum. On the other hand, the infrared spectra of yellow brown soil, lou soil, heilu soil, loessal soil fall into the montmorillonite spectrum.

结果表明，砖红壤、红壤红外光谱属于高岭石型图谱，显著的3695，3620，1035cm^(-1)峰以及3527cm^(-1)峰可作为用红外光谱判断热带、南亚热带地带性土壤的特征峰。

Analyze the gain spectrum of modulation instability under specific nonlinear responds. We take logarithmically nonlinear medium as an example to discuss MI gain spectrum of coherent and incoherent beams both.

一、我们在微扰近似下，分析了介质的非线性响应形式对调制非稳增益的影响，以对数型非线性介质为例分别讨论了相干光束和非相干光束的调制非稳性。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

The problems include mixed pixel, shadow, metameric substance of same spectrum, metameric spectrum of same substance, and special stony land. According to the classification standard of National Environmental Protection Bureau in 2000 and actual situation in Huajiang karst gorge, the author adopts the technique wh...

根据国家环保局2000年分类标准，结合花江喀斯特峡谷的实际情况，本文采用了RS、GIS和传统勾绘技术相结合的方法进行土地利用类型划分，分类结果表明此方法是可行的，其精度可达89.65%。

For the purpose of realizing the LITVF technique in the visible region of the spectrum, BaCl was selected as the seeding molecula, and the spectrum feature of the BaCl in the premixed laminar flame were investigated experimentally.

在对激光诱导热助振动荧光光谱理论分析的基础上，本文以较大的篇幅讨论了稳定预混层流火焰中BaCl分子的热助振动荧光光谱的实验研究结果和具体实验装置。

Optimized and calculated geometric structure and infrared spectrum of benzoic acid molecule with density functional B3LYP method on 6-311G ** base cluster level,and compared the calculated infrared frequency of each conformation of benzoic acid with actually-measured infrared spectrum,thus determined molecula.

用密度泛函 B3LYP方法在6-311G**基组水平上对苯甲酸分子的几何结构和红外光谱进行了优化和计算，并将计算所得的苯甲酸各构象的红外频率与其实测的红外光谱进行比较，确定了在晶体中苯甲酸的分子结构，同时在计算中给出了各种频率所对应的红外强度，对光谱进行了归属。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。