organic chemistry
- organic chemistry的基本解释
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[化] 有机化学
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- organic chemistry所属的单词分类
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Science / 科学
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xenobiology · materials science · genomics · evolutionary biology · earth sciences · Petri dish · volumetric flask · organic chemistry · molecular biology · exobiology
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New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.
三、新型汽包炉水化学工况的提出及其原理和特点详细分析了国内外现行两大类水化学工况处理的核心原理和特点,针对现行汽包炉还原性水化学工况处理所存在的系统腐蚀速度相对较大、给水和炉水铁浓度高、锅炉结垢速度快、机组酸洗间隔短、无法避免有毒化学除氧剂的使用以及氧化性水化学工况在汽包炉机组上应用的困难等问题,在详细分析电站整个水蒸汽循环系统的特点、两类水工况处理的原理和对循环中各段处理的实际效果等的基础上,综合两者的优点,提出了一种新型的局部轻微氧化性无除氧剂汽包炉水化学工况-"汽包炉有限氧化性水化学工况"处理原理,并初步计算、分析和确定了该种新型水化学工况的主要工艺控制参数、应用条件、启停与紧急情况处理等。
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Adopting speech record analysis by making a sound while thinking ,aiming at Organic Chemistry test questions and doing a lot of individual case analysis, The author summarizes the successful problem-solving thinking strategy for outstanding students of Organic Chemistry questions then edites the successful problem-solving thinking strategy for outstanding students as a teaching plan and trains consciously the students in the experiment team adhibiting the problem-solving thinking strategy for Organic Chemistry in the usual teaching practice activities to find out the characteristics of students" problem-solving thinking activity in Organic Chemistry and to improve the students" ability of problem-solving in Organic Chemistry rapidly.
然后,将优生成功解题的思维策略编成教案,在正常的教学实践活动中,有意识地对实验组学生进行有机化学问题解决思维策略训练,以了解学生有机化学解题思维活动特征,促进学生有机化学问题解决能力的迅速提高。实验以株洲六○一中学高三年级理科两个班的学生为被试,以自编《高中有机化学问题解决能力检验的前测和后测试题》和自编《高中生有机化学解题思维策略训练教程》各1套等为材料,通过6周的教学训练,收集训练前、后有机化学测试成绩等数据,采用SPSS10.0进行统计分析,得出如下研究结论: 1、对高三年级学生进行有机化学解题思维策略训练能有效地提高其有机化学解题能力。
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The results of the present research are as follows, The correlation between physico-chemical properties of organic compounds and their competitive power was studied, and it was indicated that organic compounds preferable to form H-bonding with organic matter of sorbents have stronger competitive power; Sorption behaviors of ionizable organic compounds in different species and their competitive power were examined, and the results showed that phenols and carbonxylic acids with benzyl circle have much stronger competitive power in molecular species than in ionized species, because negative charges of anionic forms can depressed their adsorption on the surface of the sediment; in contrast, organic bases such as aniline and p-chloroaniline show weaker competitive power in molecular species than in ionized species, and this is because both species of the organic bases could adsorb strongly onto the sediment; there is a correlation between competitive power of organic pollutants in multi-solute systems and their sorption isotherm nonlinearity in single-solute systems, and organic compounds whose sorption isotherms is linear in single-solute systems hardly have competitive power in multi-solute systems; Competitive sorption effects in more than two-solutes systems was studied, and it was exhibited that mixture of two cosolutes each of which could suppress sorption of nominal solute onto the sediment had synergistically competitive sorption effect on the nominal solute; A method about incorporating sorption/desorption of organic pollutants into river water quality model was developed, and discussion about degree of sorption/desorption effect on model prediction for different organic compounds was made, which will provide theoretical basis and practical processes for setting up more accurate water quality model.
论文主要取得了以下研究成果。(1)有机化合物的吸附竞争能力与其物化性质具有相关性,易与沉积物有机质形成氢键的化合物其竞争能力也比较强;(2)可离子化有机化合物的吸附竞争能力与其存在形态有关。酚类、含苯环的羧酸类化合物,其离子态的吸附竞争能力远小于分子态,其机理为有机酸阴离子所带的负电荷抑制了表面吸附能力,主要发生分配作用;而苯胺类化合物,其离子态和分子态都表现出显著的竞争能力,而且离子态的竞争能力略强于分子态,原因在于有机碱阳离子所带的正电荷促进了其表面吸附能力;有机化合物竞争能力的强弱与其单组分吸附等温线的非线性程度具有一定的相关性,吸附等温线近似为线性的化合物没有或只具有微弱的竞争能力;(3)对目标有机化合物的吸附具有竞争效应的有机化合物混合后,将对目标有机化合物的吸附产生协同竞争效应;(4)以京杭运河为例,率先提出了将有机污染物的吸附/脱附作用及水文水力参数耦合到水质模型中的方法,并讨论了吸附/脱附作用对不同有机污染物预测模型的影响,为建立更准确的水质模型及进行更客观的风险和生态评估提供了参考依据。
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Organic Chemistry:化学有机化学
资料简介:一、有机化合物和有机化学 有机化学(organic chemistry)是研究有机化合物的来源、制备、结构、性能、应用以及有关理论和方法学的科学,是化学学科的一个分支,它的研究对象是有机化合物.
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Organic Chemistry:校訂科目 有機化學
護理 Nursing | 校訂科目 有機化學 Organic Chemistry | 化學工業 Chemical Industry
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Organic Chemistry:有机化学本文来自:博研联盟论坛
310. isomerism 同分异构现象本文来自:博研联盟论坛 | 311. organic chemistry 有机化学本文来自:博研联盟论坛 | 312. hybridization 杂化本文来自:博研联盟论坛
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Organic Chemistry:有机化学
(4)<<有机化学>>(organic chemistry) 莫里森.R.N主编,有中英两个版本,世图出版,哈佛经典教材. 描述生动,深入浅出,有兴趣且精力充沛者可看,其他人免了.
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Advanced Organic Chemistry:高等有机化学
旋转性核-核过偶极偶合影响光谱(ROESY)电子电离法(EI)、化学电离法(CI)、快速原子轰击法(FAB)、负离子模式(Negative Ion Modes)、基质附助激光解吸电离离子法(MALDI)已先修5.43 高等有机化学(Advanced Organic Chemistry) 或得到教师同意.
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