紫外线的
- 与 紫外线的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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And the maximum absorbency, shape of the curve and absorption value of treated HIgG were nearly similar to those of untreated HIgG.
蛋白肽键和氨基酸生色基团的紫外线最大吸收波长均与正常对照组相同(218nm,276nm)。
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After many experiments with aluminium foil of various thicknesses he was able to publish, in 1894, his great discovery that the plate of quartz that had, until then, been used to close the discharge tube, could be replaced by a thin plate of aluminium foil just thick enough to maintain the vacuum inside the tube, but yet thin enough to allow the cathode rays to pass out.
1888年莱纳德在海德堡大学昆克手下工作,他完成了他关于阴极射线的第一项研究成果,他研究了当时赫兹关于阴极射线有与紫外线相似特性的观点,并设计了一个实验,以探究阴极射线是否像紫外线一样,能够通过放电管壁上的石英窗,他获得的结果是阴极射线没有这样的特性。
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C, 200rpm for 5d then placed statically for more than 7d, and addition more than 0.01% Chitosan to Bacillus subtilis suspension provided significant UV protection. The survival spore rate is 90% about 2-2.5 fold better than control for spore exposed to UV radiation for 30 min. Bioassay in against Glomerella cingulata, and the inhibition activity is still 60%.
枯草杆菌於MIY液态培养基中,30°C,200rpm震荡培养五天后静置培养七天以上,以甲壳素添加浓度大於0.01%作为最适宜的紫外保护剂之作用最好,於UVB灯下暴晒30 min,对枯草杆菌孢子的保护效果最好,存活率达90%以上,抗紫外线活性是不添加紫外线保护剂的CK组的2.5-3倍,对檬果炭疽真菌仍有60%的抑菌活性。
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Cancer is uv's final result.shortwave radiant energy,especially from the uv b band,breaks the strandsof dna.enzymeswork constantly trearrange the dna into proper sequence.but with repeated uv exposure,the repair process may even-tually break down.then the mutantdna may produce a colony of cancer cells.but skin cancer may be avoided with a good dose of common sense.people with fair skin and blue eyes who burn easily stand the highest risk.special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks,nose,lower lip and the ears.people who have already developed precancerouslesionsor had one skin-cancer growth stand a greatly increased chance of developing others.
紫外线伤害的最终结果就是诱发癌症。短波辐射能量,特别是来自uv-b波段的辐射能量会破坏dna链。本来,酶能够按照适当的顺序来重新安排这些被打乱秩序的dna,但是持续暴露于紫外线下会让这一修复过程崩溃。到那时,变异的dna就会制造出大量的癌细胞。其实,只要运用一些常识。我们就能预防皮肤癌。浅肤色、蓝眼睛的人会轻易就被晒黑,因此他们患皮肤癌的风险就高。诸如脸颊、鼻子、下嘴唇和耳朵等长期暴露在阳光下的部位是皮肤癌的高发区域。那些已经受到癌症前期伤害或者是已经患过一次皮肤癌的人,极有可能再次患上皮肤癌。
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On this basis, chosing 15w germicidal lamp with radiation centred at 253. 7nm or 15w blacklight fluorescent lamp with radiation centred at 365nm as the light source respectively, the destruction effects of trace impurities in water by photocatalytic oxidation method using TiO〓 as an immobile phase have been investigated, and the effects are contrasted with photolysis. The investigation is mounted into Phenol aqueous solution, Hydroquinone and Humic Acid aqueous solutions、three representative halohydrocarbons coexisting in main water、the comprehensive index removal of varied trace organic pollutants in main water、the removal of residual chlorine and the disinfecting action, etc..
在此基础上,选择主波长253.7nm的紫外线杀茵灯或主波长365nm的蓝黑管紫外线荧光灯作为光源,研究了TiO〓膜固定相光催化氧化法去除水中微污染物的效果,包括苯酚水溶液、对苯二酚水溶液和腐植酸水溶液的光催化氧化以及自来水中共存的三种典型的氯代烃水溶液三氯甲烷、四氯化碳和四氯乙烯的混合光催化氧化、自来水中有机物总体去除效果以及光催化去除自来水中余氯的作用和光催化的消毒作用等,并进行了光解对比实验。
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Adopting compound techniques of inorganic nanometer, sol-gel techniques and ultraviolet absorbers are used to obtain new protective materials of hydroxybenoic ketone, benzotriazole and polyvinyl alcohol for the protection of historical relics .
采用无机纳米复合技术,利用溶胶-凝胶方法的分配交联和紫外线吸收剂的添加等工艺手段,筛选出适于文物保护环境的防紫外线照射,又不影响文物展示效果的羟基苯酮类、苯并三唑类及能有效消除弦光,又不影响观赏效果的聚乙烯醇类新型防护材料,以便用以不同环境下的文物保护工作。
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Capable of handling metallised stocks and printing six colours and a varnish, the sheet fed presses provided a sound base for Aluprint to extend its capability into the use of filmic substrates for wrap around labels, and in 2001, an eight-colour Arsoma EM410 UV-flexo press was installed, and then in 2005 a SOMA CI press was added to increase capacity in the UV-flexo for filmic labels.
金属化处理和印刷股票六种颜色和清漆能力的单张纸印刷机提供了一个坚实的基础Aluprint扩展到了约基板薄膜类标签,包装使用的能力,并于2001年,八色Arsoma EM410紫外线柔印机的安装,然后在2005年1 SOMA的身份证明书新闻界说,增加紫外线能力为薄膜类标签柔印。
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Patients with mild or moderate hepatic failure or intestinal fat-malabsorption syndromes, as well as patients who are taking anticonulsant medications, glucocorticoids, or other drugs that actiate steroid and xenobiotic receptor, require higher doses of itamin D (Table 3).7,88 Exposure to sunlight or ultraiolet B radiation from a tanning bed or other ultraiolet B–emitting deice is also effectie.
有几类病人需要更高剂量的维生素D(表3)[7,88],如轻中度肝功能不全、肠脂肪吸收不良综合征的病人,服用抗惊厥类、糖皮质激素类以及可激活类固醇和异生质受体类药物的病人。病人通过适当的日光照射、躺在晒黑床上紫外线B照射或其他紫外线B放射仪治疗,也能取得增加维生素D用量的效果。
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Extraction in crustaceans, salmon, shrimp, phosphorus, red algae astaxanthin, and removal of reactive oxygen species inhibit the capacity of the antioxidant power is 10 times more carotene, Q10 150 times, 550 times the vitamin can promote cell regeneration, slow down premature skin aging occur, and add the green tea extract can prevent the skin caused by ultraviolet radiation caused by aging, protecting cells to reduce the damage of UV on cell DNA, is effective against free radicals and prevent skin aging.
效用:萃取於甲壳类、鲑鱼、燐虾、红藻的虾红素,具有抑制及清除活性氧的能力,其抗氧化力是胡萝卜素的10倍、Q10的150倍,维他命的550倍,能促进细胞再生,延缓肌肤老化过早发生,并添加绿茶萃取能防止因紫外线造成所造成的皮肤老化,保护细胞减少紫外线对细胞DNA的伤害,有效对抗自由基,防止肌肤老化。
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This research utilized the method of organic synthesis, researching different amounts and positions of hydroxy-substituted benzoic acid and serotonin into amide reaction, so as to produce a series of polyhydroxy substituted N-benzoylserotonin derivatives (compound 1-10). Accordingly, this study conducts the following four tests. I. The activity of antioxidant and the experiment of ability to scavenge DPPH free radical, II. The ability of overall antioxidant—the activity of TEAC, III. The activity test of inhibit Tyrosinase, and IV. The study of absorbing UV / VIS Spectrophotometers. This study use trolox, arbutin, and octyl salicylate as the control groups, and to test the ability of anti-oxidation, the activity of inhibit Tyrosinase, and the ability of absorbing UV. This research ultimately intends to investigate the applied value of those compounds into cosmetics.
本研究主要利用有机合成的方法,将不同数量及不同位置的羟基取代苯甲酸化合物与色洛冬宁进行醯胺化反应后,得到一系列的多羟基取代之N-色洛冬宁苯甲醯胺衍生物(化合物1 ~ 10),进行四种不同活性测试方法:一、清除DPPH自由基能力抗氧化活性测试;二、总抗氧化能力活性测试;三、抑制酪胺酸酶活性美白测试;四、紫外线/可见光光谱仪吸收测试,并以水溶性维生素E、熊果素、水杨酸辛酯当作对照组,探讨其抗氧化能力、抑制酪胺酸酶的活性能力与吸收紫外线能力,再进一步探讨其应用於化妆品上的价值。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力