紫外辐射

This dissertation includes two parts. The first part deals with study on gas-phase reactions of metal ions with ethanethiol molecule by using the laser ablation-molecular beam method and density functional calculations. The second part describes experimental and theoretical study on VUV photoionization of some molecules using synchrotron radiation.

本论文分两大部分，第一部分介绍利用激光溅射-分子束技术研究金属离子与乙硫醇的气相反应，并用密度泛函理论研究了反应形成的团簇离子的结构和特性；第二部分介绍一些分子的真空紫外同步辐射光电离，结合量化计算分析了实验结果。

Comparing with the outer,there is low PAR (photosynthetically active radiation) and UV B in inner of winter plastic greenhouse.

冬季蓝色无滴膜塑料大棚内有效光合辐射和紫外 B都比棚外低。

Ed spot/projector light adopt foreign high power led bulb,it is equipped high-efficiency Condenser lens,beautiful Lamp shape,High-brightness, Low power ,Low calorie,Impact resistance,shakeproof,lifespan is can be 2000 hours long.

ED投光灯采用进口大功率LED，配有高效率聚光透镜，精美的灯具外型，具有高亮度，低能耗，低热量，耐冲击，防震，无紫外和红外辐射，低电压下工作安全可靠，寿命长达20000小时。

The interaction between bovine serum albumin and such a natural pharmaceutical homologue as coumarin, umbelliferone and aesculetin was investigated using fluorescence spectroscopy and ultraviolet spectroscopy.

运用荧光光谱、紫外光谱法研究了三种香豆素中药小分子与牛血清白蛋白的相互作用。实验结果表明，香豆素类小分子能够插入BSA分子内部与BSA形成基态复合物导致BSA内源荧光猝灭，猝灭机理主要为静态猝灭和非辐射能量转移。

O3/UV process is a kind of AOPs, which combined O3 with ultraviolet radiation, under the radiation of UV, O3 is accelerated its decompounding course remarkably, and generated the strong oxidant hydroxyl radicals in solution.

臭氧紫外光（O3/UV）法是将臭氧与紫外光辐射相结合的一种高级氧化技术。在紫外光的辐射下臭氧显著地加速了分解速率，在溶液中形成具有强氧化特性的羟基自由基。

No other gases would be present to prevent ultraviolet solar radiation dissociating water vapour at the top of the atomsphere.

没有其他的气体去阻止紫外太阳辐射离解大气层顶的水汽。

On the basis of many times of experiments, A optimized reaction system about the microsatellite PCR amplification and partial COⅠ-Ⅱgene amplification of the green peach aphid was proposed. 3. It is clear that the result of polymorphic bands shows the abundance among the aphids after different UV radiation with three primers.

遗传多样性指标的方差分析结果表明，对于平均多态位点率，2 h处理是平均多态位点率的临界值，超过2 h， F2代平均多态位点率发生显著变异；对于平均基因多样度，对照与不同时间处理间差异显著；研究结果也表明低剂量紫外照射可增加蚜虫的免疫性，高剂量辐射则导致桃蚜的基因发生变异。

Taking four-year old Rh. tanguticum Maxim. ex Balf and Rh. Palmtum Linn in the same habitat as the research materials, the contents of chlorophyll, carotenoid and UV-absorbing substances in rhubarb leaves were detected. Physiological adaptation characters of two rhubarbs under plateau intensive ultraviolet radiation were studied.

方法］以栽培于同一生境下的4年生唐古特大黄与药用大黄为研究对象，测定2种大黄叶片中的叶绿素、类胡萝卜素及紫外吸收物质的含量，研究了在高原强紫外线辐射下2种大黄的生理适应性。

Within the limitation of SBTART model, the paper is concerned with the preliminary study of the feasibility of determining total atmospheric ozone by scattered ultraviolet radiation from the clear zenith blue sky.

选用SBDART模式作为大气辐射传输计算模式，通过模拟计算和结果分析探讨无云的晴天、垂直对天顶观测的紫外前向散射反演大气臭氧总量的可行性。

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。