查询词典 Wavelength

To determine the content of Emodin and Chrysophanic Acid in Liuwei'anxiao Capsules by HPLC,using a column packed with C_ 18 and a mixture of methanol-0.1% phosphoric acid solution(85∶15) as the mobile phase,detection wavelength is 254nm.

采用C18柱，流动相为甲醇-0.1%磷酸溶液(85∶15)，检测波长为254nm。

The strain gradient, the fiber Bragg grating's reflection and the short wavelength loss decide the two stopbands. Because of having no extra loss result from coupler and no high cost result from circuitor, the band pass filter formed by single chirped fiber grating have many good characters such as little insert loss its insert loss is the fiber splice loss, small volume, low cost and excellent property, moreover there is no report about fabricating filter by using this method, thus we will apply national invent paten about the method of fabrication fiber band pass filter using single chirped fiber grating. According to the parameters linearly chirped fiber gratings of Canada BRAGG Photonics Inc.

由于没有耦合器带来的3dB的额外损耗，也没有环行器带来的高的制作成本，用单支chirped光纤光栅形成可调光纤带通滤波器具有插入损耗极小（插入损耗为光纤与光纤之间的融接损耗）、体积小、制作成本低廉并且性能优良等特点，而且国内外还未见类似制作方法的报道，我们对用单支chirped光纤光栅形成可调光纤带通滤波器这一制作方法正在申请国家发明专利。

Two FBGs are attached radially and circumferentially to a metal diaphragm respectively, and when temperature and pressure change, the peak wavelength of the FBGs will shift.

分别將光纤Bragg光柵沿膜片的径向和环向粘贴在膜片上，当温度发生变化或者膜片受到压力作用时，都会引起光纤Bragg光柵峰值波长偏移。

The noises included a random variable changing with the wavelength,a random constant bringing the spectrum baseline drift,and the spectrum baseline circumgyration brought by the difference of sample loading and the chan...

对于随机变量噪声，通过用背景、白板、样品各组重复采集、递归平均再计算光谱数据的方法减小，同时可节省存储空间，减小三组数据的重迭区域，增加光谱数据的有效范围。

By using TiO〓 and Ag-TiO〓 as photocatalyst, 257nm wavelength UV as light source, methylene blue and phenol as model compounds, photoregenerations of wooden and coaly activated carbons were performed in suspension system and immobilized system respectively.

以TiO〓和Ag-TiO〓为光催化剂，主波长257nm的紫外杀菌灯为光源，亚甲基蓝、苯酚为模型化合物，分别研究木质、煤质活性炭在悬浮钛体系及负载体系的光再生。

This can result in a splitting ofwavelength-dependent loss band and make the codirectional mode coupling condition (of the fundamental core mode into cladding modes) be different at two principal input polarizations.In a PM-LPG fabricated with a PMF having relatively small birefringence , the adjacent resonant dips (slow-axis and fast-axis resonant dips) resulting from the two principal input polarizations have identical cladding mode order and the wavelength separation between them is several nanometers

这可能导致分裂的ofwavelength-dependent损失，使codirectional乐队的耦合条件(模式基本核心人才培养模式为层模式)是不同的两种主要的输入波在PM-LPG捏造和具体情况有相对较小的双折射，相邻的谐振(slow-axis和fast-axis引起共振蘸)的两种主要模式有相同的输入波的波长层顺序和他们之间的分离是几奈米的图案

Only the change of temperature in the columned vessel causes the wavelength shift of FBG 2, the pressure's influence can be neglected.

提出了一种基于圆柱形容器和活塞结合的双光纤Bragg光栅温度和压力同时区分测量的传感模型。

IR, UV-Vis, 1H NMR The IR, UV-Vis and 1H NMR of selenadiazoles were investigated. Their IR peaks were classified as the corresponding groups or bonds; The relation of their structure with the conjugative effects, absorbtion wavelength and molar absorb coefficients were discussed with the UV-Vis. The value of selenadiazoles in analytical chemistry and the varieties of structure with the pH were discussed.

IR，UV-Vis，~1H NMR 对硒二唑类化合物的IR吸收峰进行了归类与指认，讨论了SPO、SPDO的异构体的分子结构；探讨了UV-Vis、吸收波长和摩尔吸光系数与分子结构的相对应关系，以及紫外吸收光谱性质在分析化学上的应用价值和溶液的pH值引起SPO、SPDO的结构变化。

The results showed that the mole ratio of three ligands to CoCl_2, NiCl_2 were 1:1 and to CuCl_2, ZnCl_2, CdCl_2 were 2:1, The IR, UV-Vis and FS of complexes were investigated. Their IR peaks were classified as the corresponding groups or bonds; The relation of their structure with the conjugative effects, absorbtion wavelength and molar absorb coefficients were discussed with the UV-Vis and FS.

结果表明：噻唑类配体与金属CuCl_2，CdCl_2配位比分别2∶3和3∶2，至于配位机理还需进一步探讨；硒二唑配体与CoCl_2和NiCl_2配位比均是1∶1，而与CuCl_2、ZnCl_2和CdCl_2的配位均为比2∶1；对配合物的IR吸收峰进行了归类与指认，并对配合物的紫外和荧光光谱进行讨论分析，推测硒二唑类化合物与金属发生配位的部位是v中Se原子与金属配位。

An unprecedented combination of photochromism and solvatochromism for a 1,2-bis cyclopentene derivative,1,2-bis(2-methyl-5-formyl-thien-3-yl) perfluorocyclopentene,is observed:1 BMFTP,dissolved in the alcohols,exhibits the largest positive solvatochromic shift in wavelength witnessed to date.

我们发现了醛基二芳烯BMFTP的溶剂变色效应：1在醇类溶剂中，醛基二芳烯分子闭环态吸收波长将会发生显著红移；2在不同溶剂中，醛基二芳烯闭环态吸收波长不同。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。