查询词典 emission spectrum

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback, it is realized to lock the clock frequency of this laboratorial desktop experimental CPT frequency standard.

通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback respectively, the locking of the clock frequency of this laboratorial desktop experimental CPT frequency standard is realized.

介绍了相干布居囚禁原子频标的小型、低功耗物理系统，并应用它开展实现了CPT原子频标的激光锁定、微波锁定方案的实验室研究。通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

From the spectrum, it is analysed that the proportion of the acetylene concentration in the mixture gas dominates the film component.

结果表明，采用射频等离子体化学气相沉积方法，可以在很短时间内于PET瓶内沉积一定纳米厚度的DLC膜，达到数倍提高对气体的阻隔效果。

Under the imitated physiological condition of animal body, the binding of phenoxyacetate acid compounds to bovine serum albumin was studied by fluorescence spectrum.

在模拟动物体生理条件下，用荧光光谱法研究3，4，5-三羧甲氧基苯甲酸、3-(4-羧甲氧基)苯基丙酸与牛血清白蛋白结合反应的光谱行为。

The products was through the world authoritative analysis organization--Shanghai SGS Certification Center, Spectrum Town Test Center and Saibao testing laboratory's rigorous test, such as expansion rate test, welding test, pollution test, chromic acid silver paper test, bronze mirror test, acid value test, non-halogen test, aging test and so on, and all the test passed thoroughly, achieve the targets of JISZ3283-2001 standards and meet ROHS Notice 2002/95 / EC technical indicators.

公司产品通过世界权威检测机构上海SGS认证中心、谱尼测试中心、赛宝实验室的严格测试，如扩展率测试、可焊性测试、污染度测试、铬酸银试纸测试、铜镜测试、酸值测试、无卤测试、老化测试等均合格通过测试；各项指标达到JISZ3283-2001标准及满足ROHS公告2002/95/EC技术指标。

Experiment results indicate the HN derivatization method is not effective for test objects of complicated ingredients, such as gaba tea, germinated brown rice and germinated seed samples. We were unable to identify the GABA peak on the HPLC spectrum. When dealing with samples that contain large amount of amino acid, such as germinated brown rice and sprouted seeds, the PITC derivatization method is prone to disturbance and has the tendency to overestimate the GABA content. The OPA derivatization method effectively isolates the GABA peak of all test samples of this experiment. That its derivatization is simple and speedy makes it suitable for broader applications.

实验结果显示HN衍生法对於成分复杂的检品如茶汤、发芽玄米、发芽种子样品的分析效果皆不好，在HPLC图谱上无法辨识GABA peak；PITC衍生法对於含有大量蛋白质胺基酸的样品如发芽玄米、发芽种子则较易受干扰而可能高估GABA含量；OPA衍生法对於本实验所有样品中的GABA peak均有良好的分离效果，且衍生化过程简单快速是较建议广泛适用的检测方法。

Quantum dot; nano-SiO_2; DNA; acridine orange; organic dyes; silver ion; copper ion; spectrum analysis

论文导师常希俊，论文学位博士，论文专业分析化学论文单位兰州大学，点击次数 2，论文页数 141页File Size7980K

The result of infrared spectrum contrast analysis with standard quartz, agate and opal shows that the main mineral composition of Chaoyang petrified wood is quartz, a natural petrified organic jewel, which has a bright future in development and application.

通过与标准石英、玛瑙和蛋白石的红外光谱对比分析，研究结果表明朝阳硅化木的主要成份为石英，属天然石化型有机宝石，开发利用前景十分广阔。

Atomic spectrum of ''.'alkaline'.'' metal

碱化的变成碱的；弱碱性的

Methods:The resonance light scattering spectrum of cetyltrimethyl ammonium bromide in alkaline medium was enhanced significantly in the presence of CuS/S~(2-) solution.

共振光散射技术是近年发展起来的一种新的分析技术，它具有简便快速、灵敏度高的特点，已用于痕量Cu元素的分析[1]。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。