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spectra相关的网络例句

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The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作:1合成了三种可进行光二聚反应的光敏小分子单体,LPUV 辐照制作了光控取向膜;用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应,发现小分子的光反应程度可达到50%以上,至少比光敏高分子高出5倍;薄膜的偏振红外光谱证实,经过LPUV 辐照后薄膜出现了明显的各向异性;将小分子光控取向膜制成液晶器件,在偏光显微镜下观察看到均匀一致的液晶取向;并且热稳定性达到100℃左右,接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜;采用接触角的方法监测自组装反应的动力学过程;紫外-可见光谱证实了自组装单层膜在石英基板表面形成;自组装单层膜经LPUV 辐照后能诱导液晶均匀取向,而且热稳定性可达130℃,热稳定性进一步提高。3合成了含有光敏双键的双季铵盐,在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜,紫外-可见光谱证实这是一个逐层均匀的沉积;在LPUV 照射下,自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应,形成取向膜,用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平;实验证明用自组装多层膜制成的液晶器件亮暗态均匀,静态对比度约为100,达到实用化器件的水平。

Serial types of important multiple-pluse NMRexperiments were analyzed: J-modulated spin-echo; polarization transfer; two-dimensional NMR spectra (NOESY,INADEQUATE,homonuclear COSY,heteronuclear COSY,SECSY,homonuclear J-resolved spectra,heteronuclear J-resolved spectra).

二维谱实验,分析了NOESY实验INADEQUATE实验、同核COSY实验、异核COSY实验、自旋回波相关谱SECSY实验、同核J分解谱实验和异核J分解谱实验(涉及质子反转门控去偶、FOCSY门控去偶和RE-FOCSY门控去偶四种实验)。

The electronic spectra and NMR spectra of both isomers have been calculated based on the similar studies about the isoelectronic molecules C~6~0O and C~6~0CH~2, the electronic spectra of which are in good agreement with the experimental results.

文中计算了两种构型的电子吸收光谱和NMR谱,此类计算是基于对C~6~0SiH~2的等电子体C~6~0O和C~6~0CH~2的研究之上,且后两者的研究结果与实验相一致。

Applying the Large-scale multi-configuration Dirac-Fock wave functions, we calculated the parameters such as wavelength, oscillator strengths and excited energy for the transitions related to lightning spectra. The most important effects of relativity, correlation, and relaxation are included in the computational model. Comparison of the calculated results with experimental spectra shows that the spectra in plateau area have a distinctive characteristic. Beside the lines of lower excited state with n=3 in NII ions, transitions of NI and OI are increased, their excited energy is around 13~14eV, and there are rarely lines from OII ion.

将原子结构的理论应用於闪电光谱的研究,用多组态Dirac-Fock方法,计算了有关光谱线的波长、振子强度以及相应的激发态能量等参数,理论与试验观测资料进行比较分析后发现,高原地区闪电首次回击光谱的结构及跃迁特性与其他地区有明显的区别,除NII离子n=3的低激发态产生的跃迁谱线外,激发能量为13~14eV左右的中性NI和OI的跃迁增多,但很难观测到OII离子的跃迁谱线。

A pplying the Largescale multiconfiguration DiracFock wave functions, we cal culated the paramete rs such as wavelength, oscillator strengths and excited energy for the transitio ns related to lightning spectra. The most important effects of relativity, corre lation, and relaxation are included in the computational model. Comparison of th e calculated results with experimental spectra shows that the spectra in plateau area have a distinctive characteristic. Beside the lines of lower excited state with n=3 in NII ions, transitions of NI and OI are increased,their excited energy is around 13~14eV, and there are rarely lines from OII ion.

将原子结构的理论应用于闪电光谱的研究,用多组态DiracFock方法,计算了有关光谱线的波长、振子强度以及相应的激发态能量等参数,理论与试验观测资料进行比较分析后发现,高原地区闪电首次回击光谱的结构及跃迁特性与其他地区有明显的区别,除NII离子n=3 的低激发态产生的跃迁谱线外,激发能量为13~14eV左右的中性NI和OI的跃迁增多,但很难观测到OII离子的跃迁谱线。

Results show that, by uv-vis spectra, fluorescence spectra and Fourier infrared spectra transform all successfully gained water-soluble CdTe quantum dots. With the increase of water-soluble CdTe quantum dot concentration increasing, Achyranthes Bidentata root length and the seed vigor reduced ordinally, but its germination changed no obviously, suggested the space mutagenesis treatment can improve Achyranthes Bidentata seed vigor.

结果表明,紫外-可见光谱、荧光光谱和傅立叶红外变换光谱图均说明已成功制备水溶性CdTe量子点;随水溶性CdTe量子点浓度增大,牛膝的根长和种子活力依次降低,但其对发芽势影响的规律不明显,经空间诱变处理能提高牛膝种子活力。

Oxyhalide tellurite glasses:(80-x)TeO2-15ZnCl2-xBaO-5NaF(x=30,20,10,0mol%) were prepared. The mechanical strength performance, thermal properties, Raman spectra, UV absorption spectra and Infrared transmission spectra of the samples were investigated.

制备了一种新型的氧卤碲酸盐玻璃:(80-x)TeO2-15ZnCl2-xBaO-5NaF(x=30、20、10、0mol%),对玻璃的机械强度、热稳定性、拉曼光谱、紫外吸收光谱、红外透过光谱等特性进行了研究。

In the second part of this work, a computor program is developed to calcalate〓L〓energy levels, reduced matrix elements, crystal field energy levels, oscillator strengths of f-f transition and theoretical f-f absorption spectra of f-ions. The calculation results of the f-f absorption spectra of Nd in water coordination sphere and H di (2-ethylhexyl phosphinic acid coordination sphere with different symmetric structure are shown and compared with observed spectra.

在第二部分中,编制了计算f离子的〓L,能级、约化矩阵元、晶体场中Stark能级分裂、f-f跃迁振子强度及f-f理论吸收光谱的计算机程序,以此程序分别计算了Nd在不同结构对称的水配位层及烷基磷酸配位层中的f-f吸收光谱,通过与实验谱比较,识别了可能的配位层结构,并讨论了f-f跃迁的强度机理。

The interaction between diammonium glycyrrhizinate and bovine serum albumin was studied in physicological solution by spectroscopic methods including fluorescence spectra and UV visible absorption spectra. Synchronous fluorescence and three-dimensional fluorescence spectra were used to investigate the conformation change of bovine serum albumin due to the addition of diammonium glycyrrhizinate.

在模拟人体生理条件下,用常规荧光光谱和紫外-可见吸收光谱研究甘草酸二铵和牛血清白蛋白的相互作用机制,并利用同步荧光光谱和三维荧光光谱研究了药物对牛血清白蛋白构象的影响。

The growth relationship between spectrum parameter and fetch were studied, from which three parameters and overshot phenomenon that appears during wind wave spectra developing were tested, and an equation describing the growth of three-parameter spectra with wind wave was obtained With the equation, the spectra of wind waves were obtained at zero-dimensional fetches of 300, 500, 2000, 5500, 10000, and 15000, and the overshot was described more clearly. However, the overshot does not exist in the whole process of wind wave spectrum development as stated previously by Hasselmann, but in the early stage of the development only, extenuates with wave growth and then disappears when the wave fully grows.

基于已得到的谱参量随风区的变化关系,对三参量风浪频谱以及风浪频谱成长过程中存在的&超射&现象作深入的研究,得到三参量风浪频谱随风区的成长关系:在此基础上,得到无因次风区:300、500、2000、5500、10000、15000下,风浪频谱的谱线,从而直观地描述了风浪频谱成长过程中的&超射&现象,并认为在风浪频谱的成长过程中确实存在着&超射&现象,但是该现象并不如Hasselmann等提出的理论中阐述的那样存在于风浪频谱成长的全过程,而是仅存在于风浪频谱成长的初期。

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