查询词典 radicals
- 与 radicals 相关的网络例句 [注:此内容来源于网络,仅供参考]
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By study of the effects of EWG and EDG substituents on the thermodynamic stabilities of free radicals, the existence of Class O radicals has been proved.
研究了吸电子取代基和给电子取代基对自由基热力学稳定性的影响,证明了Class O自由基的存在。
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From the results obtained in the study, the following conclusions can be made:The methylene blue and spectrophotometer method can capture the free radicals generated successfully. This is an effective way to measuring the free radicals quantitatively in cavitation, moreover it is easy to fulfill.The intensity of cavitation increases with reduction in the cavitation number. But the different mechanism of various enhancive processes (chemical and physical processes) results in different effect by cavitation number.The effect of operating parameters, such as inlet pressure, temperature and time on cavitation indicate that optimum operating conditions exist at the cavitation enhancive effect is maximum.It is important to optimize the structure of hydrodynamic cavitation reactor for achieving a desired effect. A reasonable geometric parameter can promote the enhancive effect for a fixed hydrodynamic condition.Ventilating appropriate gas to cavitating flow can increase cavitational intensity and hence promote the enhancive effect of hydrodynamic cavitation.
研究结果表明:亚甲基蓝分光光度计法,能够成功地捕捉到水力空化产生的羟自由基,是定量检测空化自由基简便易行的有效方法;空化程度随空化数的减小而增强,但对于不同的强化过程,因其强化机理不同,故空化数对强化效应的影响也不同;水力空化系统的压力、温度及时间等操作参数对空化强化效应的影响规律表明:在适宜的操作条件下可产生最佳的空化强化效果;空化发生器结构的优化设计是保证空化强化效应的重要前提,在一定的水力学条件下,合理的结构尺寸可以增强空化作用效果:往水流中适量加入干扰气体能够提高空化强度,增强空化强化效果。
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In the radical grade, Chinese character are divided into relativity independed ones, And position between radicals can help to recognize character, at same time, stroke combinations can be restricted by the stroke grade because the relativity fixedness in one character stroke combinition ,and this fixedness can help to reject disturbed radicals.
在一个字块中由于笔画的组合是固定的,这种固定性可以比较好的淘汰干扰字块。
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This review introduces the generation of free radicals and its harm to human body, and discusses the relationship between free radicals and exercise.
介绍了自由基的产生及对人体的危害,并全面论述了运动与自由基的关系。
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We know that the solutions of quadratic, cubic and quartic can be expressed by radicals. As to the solution of the quintic which has became an issue for past two or three hundred years, it was not solved until 1832 a great young Mathematician of French named Galois who recommended group theory that proved a polynomial of degree 5 and over 5 can't be solvable by radicals.
中文摘要我们知道二次、三次及四次的方程式都可以用根式表示,至於五次方程式的解迟迟无法解决,这个问题持续了两三百年,直到1832年,一位法国青年Galois在其决斗前夕,在他的遗书中,这位伟大的青年数学家引进了群的理论,证明了:五次及五次以上的方程式,不可能有公式解。
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In this thesis, two main parts are included, the first focuses on the characteristics of high-resolution spectra of free radicals in magnetic field, the second concentrates on the measurement of electric dipole moment of free radicals by Zeeman and Stark effects simultaneously.
本论文以电磁场中自由基分子的光谱与结构特性研究为中心,主要内容包括两部分,一是针对磁场中自由基分子高分辨光谱的特性研究,另一部分则是同时利用电磁场中自由基分子的Zeeman和Stark效应,对自由基分子的电偶极矩进行直接测量研究。
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Several transient compounds were synthesized by the homo- and heterogeneous reactions of reactive halogen compounds, In-situ ultraviolet photoelectron spectroscopy and photoionization mass spectroscopy as well as theoretical calculations were used to study their molecular structures, stability and molecular orbital properties, their electronic structures and geometric structures were obtained for the first time; Simultaneously, the electronic structure and thermal dissociation of acetyl peroxynitrate and trifluoroacetyl peroxynitrate which have great importance in the atmospheric chemistry were studied; The substituent effects of series of halopyridines and halothiophenes were studied by the ultraviolet photoelectron spectroscopy method for the first time. The atmospheric chemical reaction between peroxyacetyl radicals with IO radicals as well as the dissociation of the most stable isomer of CH3COIO3 were calculated by density functional theory, it was found that the CH3COOIO2 isomer may be act as a new reservoir of inorganic iodine in the stratosphere.
通过活性卤素的系列均相与非均相化学反应合成了几种瞬态物种,采用原位紫外光电子能谱和光电离质谱结合量子化学理论计算对化合物的分子结构、稳定性以及分子轨道特性进行了研究,首次获得了这些物种的电子结构和几何结构的信息;同时研究了大气中有重要作用的乙酰过氧硝酸酯和三氟乙酰过氧硝酸酯的电子结构性质及热解过程;采用紫外光电子能谱手段首次研究了系列卤代吡啶和噻吩的取代基效应;通过量子化学理论计算研究了乙酰基过氧自由基与IO自由基的大气化学反应及其最稳定异构体CH3COOIO2的解离,发现该物种可能是无机碘化合物在平流层中的储库物种。
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Also useful are oil-soluble copper dithiocarbamates of the general formula Rc RdzCu, where z is 1 or 2, and Rc and Rd are the same or different hydrocarbyl radicals containing from 1 to 18, and preferably 2 to 12, carbon atoms, and including radical s such, for example, as alkyl, alkenyl, aryl, aralkyl, alkaryl and cycloaliphatic radicals.
通用化学式为RcRdzCu的油溶性二硫代氨基甲酸铜,也非常有用。式中,z为1或2,Rc和Rd是含有1到18个碳原子(最好含有2-12个碳原子)的相同或不同的烃基根,并且包括烷基、链烯基、芳基、芳烷基、烷芳基和环脂基等。
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Analysis based on the experimental results demonstrated the plausible reaction mechanism is that vit C first converts Cu(superscript 2+) to its reduced state and vit C becomes vit C radical itself, thereby stimulating the formation of peroxyl and alkoxyl radicals, and bimolecular reaction of peroxyl radicals results in (superscript 1)O2 production in the systems studied.
根据实验观察的结果,分析了这一体系中(上标 1)O2形成的可能途迳,认为首先是维生素C将Cu(上标 2+)转变为还原态,而自身失去一个电子转变为维生素C自由基,从而刺激了过氧自由基和烷氧自由基的形成,过氧自由基的双分子反应很可能就是体系内(上标 1)O2产生的反应机制。
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It will prevent the forming of free radicals to slow down the ageing process, repair drive damaged protein that free radicals break, astringe and tighten skin, reduce wrinkles, effective in improving coarse, dull, fine lines and spot skin .
改善脸部毛细血管扩张、脸色晦暗、暗疮、浮肿、肌肤粗糙、毛孔粗大等问题,恢复皮肤的红润细腻。
- 相关中文对照歌词
- Free Radicals
- Roots Radicals
- Radicals
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?