根据For example, ultraviolet B (UV-B) rays tell human skin to make vitamin D. 例如,紫外线B(UV-B)可以让人体皮肤产生维生素D。可以推知维生素D对我们的身体有好处。故选B。 (2) 词义猜测题。根据Some scientists think that powerful UV rays could have bleached all the colorful flags white by now...
aThe “standard of Living” of any country means the average 正在翻译,请等待... [translate] avisible light ,considered to be light with wavelengths from 800nm and 400nm, acts in the same way as UV light. 可见光,认为轻的以波长从800nm和400nm,行动,以与紫外光相似的方式。 [translate] ...
UV and visible light synergetic photodegradation using rutile TiO2 nanorod arrays based on a p-n Junction Xu; Yangang Sun; Rujia Zou; Junqing Hu, UV and visible light synergetic photodegradation using rutile TiO2 nanorod arrays based on a p-n Junction. Dalto... Sun,Yangang,Zou,... - 《...
A device and method for an ultraviolet light (UV) light based visible light generator is disclosed. The UV light source emits a beam of UV light that may be scattered or reflected onto surfaces including UV light reactive materials that produces visible light when exposed to UV light. The UV...
Like visible light,UV rays are energy waves released by the sun,only they cannot been seen.Some exposure (暴露) to those waves can do a body good.For example,ultraviolet B(UV-B)rays tell human skin to make vitamin D.Too much exposure can be harmful,though.Overexposure to UV rays can ...
We have investigated the UV–visible light transmission of three types of micrometre-sized sporopollenin exine shells, two derived from Lycopodium clavatum (club moss) spores and one from Ambrosia trifida (giant ragweed) pollen. We have used spectrophotometer measurements of partial monolayers of exin...
The biology of these phenomena will be dealt with in Chapter 31 'Effects of UV Radiation and Visible Light'. 7.2 The spectrum of the sun Visible light and infrared radiation constitute the major fraction of solar radiation reaching the atmosphere of the Earth (Fig. 7-1). Approximately 40 %...
The N-doped TiO2films were seen to have interstitially doped nitrogen with the N 1s peak appearing at 400.0 eV in the XPS and as such showed good photocatalytic activity under white light. The photoactivity was then further enhanced by silver nanoparticle formations on the surface. The highly ...
The development of nonlinear optical (NLO) borate crystals for generation of visible and UV light is reviewed. We first discussed on the basic principles of laser frequency conversion. Then, we examine the trends in research on NLO crystals. The background and present status of NLO borate crysta...
英文名称:DNAGREEN(Visible Light) 纯度:99 % 产地:中国/上海 品牌:泽叶生物 包装规格:10 mL 货号:ZY121002 别名:绿搨蓝核酸染料(可见光型) 绿如蓝核酸染料(可见光型)(DNAGREEN(Visible Light))提供了更简单、更快速和更高质量的方法,包括质粒提取、胶回收、PCR产物纯化、基因组提取、RNA分离纯化、PCR/RT-...