可见光

The result of UV-visible spectroscopy show that the absorption band of the titanium dioxide hydrosol is extend to visible light region, what'more the absorption band in ultraviolet region is strong and wide.

紫外-可见光漫反射吸收光谱分析表明，该纳米二氧化钛水溶胶在紫外光区具有强而宽的吸收带，且其吸收边(500nm)扩展到了可见光区，扩展了对光谱的吸收范围。

Recently, the progress has been made in the area of extending the light absorption of titanium oxide into visible light region by metal doping, metalloid doping, and photosensitization.

目前TiO2可见光催化的研究取得了一定进展，金属掺杂、非金属掺杂和染料光敏化等方法都不同程度地实现了TiO2可见光催化。

The prepared powders were characterized by XRD, UV-Vis, FTIR, N_2 adsorption, Fluorescence spectroscopy, etc. N-doped TiO_2 evidently shows its absorbance shoulder shift into visible light region. Moreover, N-doping retards the transition of TiO_2 from anatase to rutile type as well as restrains the growth of the crystal size which leads to less decrease of surface area. These characteristics are considered to benefit the photoactivity of TiO_2; When all the samples were applied to the photodecomposition of Methylene Blue under visible light(λ＞400 nm), the N-doped TiO_2 show an obvious superiority when compared to the undoped TiO_2, the active hydroxyl groups are found to play a important role in this high photoactivity; When the same experiment was performed under UV light, all the samples show the consistent sequence of photoactivity as in the visible light.

通过UV-Vis、XRD、BET、IR、FL等表征手段测试表明：掺氮不仅使TiO_2的光吸收区域拓展到可见光区，而且有利于延缓TiO_2晶相的转换，从而抑止了高温煅烧下所引起的晶粒增大以及比表面积的降低，且氮源浓度越高，此现象越明显，这些特征都有利于催化剂光催化活性的提高；在主波长大于400nm的可见光催化亚甲基蓝实验当中，掺氮TiO_2的光催化活性明显优越于未掺氮样品，亚甲基蓝在90min内达到88％的脱色率。

Using MTT and AO/EB methods, the photosensitization of fullerenols under visible lights with different wave bands were studied.

用MTT法研究了在不同波段可见光和远红外辐照的下的细胞生物效应；用AO/EB荧光染色法测定了富勒醇在可见光辐照下对L02细胞的损伤。

The bioactivities of fullerenols under THz were also tested. The results showed that the fullerenols had different photosensitization under visible lights with different wave bands.

研究结果表明，富勒醇在可见光照射下，都表现出对细胞的光动力杀伤，并随着可见光波长的变化，富勒醇光动力杀伤效果也有一定的差异。

Inactivation and reactivation of photocatalyst are also discussed in the paper.

所制备的三个系列改性TiO〓纳米粒子的光谱响应范围均拓展到了可见光区，且随着金属离子掺杂浓度的增加，在可见光区的吸收强度增强。

In the field of visible photosensitive resin, the absorption spectrum, excited state, solvent polarity effect, fluorescence spectrum, fluorescence quenching, concentration effect, photo fading, reaction mechanism as well as photopolymerization kinetics of xanthene iodonium salts and cyanine dye-borate were discussed. It is found that under the radiation of visible light, intra-ion-pair electron transfer reactions occur in bis salt of fluorescein and unsymmetrical trimethine cyanines containing quinoline end group triphenyl-butylboron, and the fading rate is very high.

在可见光敏树脂部分，通过对呫吨染料碘鎓盐和菁染料-硼盐体系的吸收光谱性质、激发态性质、溶剂极性效应、荧光光谱、荧光猝灭、浓度效应、光褪色反应、光聚合动力学等的研究，结果发现：荧光黄双二苯基碘鎓盐体系和含喹啉环端基不对称三甲川菁染料-三苯基丁基硼盐体系在可见光作用下均发生离子对内电子转移反应，且光褪色反应速率很高。

Methods:To establish biochemistry docimastic methodology and assessment technique by using of serum micromolecule substance acquisition technique、liquid enzymes stable technique,and appraise the different systems of homogeneous assay of creatinine in serum.

方法本项目凭借血清小分子物质捕获技术、液体酶稳定技术等、分别建立了适用于生化自动分析法的可见光匀相速率法、可见光匀相终点法；可应用于手工法检测的荧光匀相分析法、化学发光匀相分析法。

Mechanistically, the photocatalytic processes are based on the electron transfer from a excited dyes to the conduction band of TiO〓 semiconductor and subsequent some reactions such as the further reaction of injected electrons with adsorbed oxygen and complicated decomposition processes of dye cationic radicals to lead to dye degradation or mineralization, which offers a feasibility of utilizing inexpensive visible light or most part of solar spectra to treat dye pollutants.

其光催化过程的机理为：染料在可见光下被激发，电子从激发态染料传输到TiO〓半导体的导带，随后发生一系列的反应，如注入的电子与吸附的氧反应以及染料正碳自由基复杂的分解反应导致了染料的降解和矿化，这就为利用廉价的可见光或太阳光中的大部分可见光谱来处理染料污染物提供了可能。

The reflectance microspectra in the 600 to 700 nm region is measured by a visible microspetromater based on fiber confocal microscope. The microspectroscopy of the normal and cancerous gastric tissues is measured.

基于光纤共聚焦显微系统，建立了可见光显微光谱实验装置，测量了离体正常和癌变胃组织的显微光谱，给出了样品在600~700 nm波长范围内的显微光谱分布情况，实验结果表明可见光显微光谱技术简单、有效，可用于胃癌的早期检测。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。