查询词典 oxidation process

The paper consist of four chapter, In chapter 1, the research advances of cholesterol oxidation products in food was reviewed, including the formational mechanism of cholesterol oxidation products, its species, contents and preventives as well as analytical methods and results comes from COPs forming during in processing or storage.

本文共分四章：第一章对食品中胆固醇氧化物的研究进展，包括胆固醇氧化物的形成、种类及含量、加工过程中应采取的预防措施以及分析检测方法等进行了综述，共引用文献31篇。

METHODS: Cultured rat cardiomyocytes were induced to be hypertrophy by angiotensin Ⅱ and norepinephrine. Glucose oxidation rate, glucolysis rate and fatty acid oxidation rate were determined by liquid scintillation counting, and cell apoptosis was detected by TUNEL.

应用血管紧张素Ⅱ(AngⅡ， 0.1mol/L)+去甲肾上腺素(NE 1mol/L)诱导培养大鼠心肌细胞肥大，以同位素液闪计数法测定葡萄糖有氧氧化率、葡萄糖酵解率和脂肪酸有氧氧化率，TUNEL法测定细胞凋亡。

Dihydrojasmone was synthesized from2-hexyl-5-methyl-1,2-oxaborolane,prepared frommethyl vinyl ketone and hexene,via the homologationwith 〓 followed by PCC oxidation and intra-molecular condensation.In stead of the oxidation ofthe C-B bond of 1,2-oxaborolane,fluoride inducedhalogenation of 2-alkoxy-1,2-oxaborolane was found togive 3-halopropanol.

硼氢化甲基乙烯基酮和已烯得到的2-已基-5-甲基-1，2-氧硼杂环戊烷与〓反应，再经PCC氧化，分子内缩合得到二氢茉莉酮。1，2-氧硼杂环戊烷的C-B键除氧化断裂之外，也能够在〓或KF作用下卤化断裂成碳卤键。

ZnO, MgO and SiO_2 powders were covered on top of the alloy as dopants, the effects and principles of the dopants were discussed. Based these, SiC particles were made into preforms with different distribution of air holes by changing the granularity of SiC particles and the content of graphite additive, and the oxidation growth of aluminum alloy melt into the air holes within the preform was controlled to prepare SiC/Al_2O_3/Al composite with inerratic shape. And the SiC particles effect principle to the oxidation of SiC/Al2O3/Al composite was studied.

以ZnO，MgO和SiO_2为引发剂，覆盖在合金表面，讨论了引发剂的添加效果和作用机理；在此基础上将α-SiC颗粒制作成为预制体，通过改变SiC的粒度和石墨造孔剂的含量，调整预制体内部的气孔分布，控制铝合金熔体在预制体孔隙内的氧化生长，制备出形状规则的SiC/Al2O3/Al复合材料，同时研究了SiC颗粒的存在对SiC/Al_2O_3/Al复合材料生长机理的影响。

The article introduces the anti-tumor and other pharmacologic effects of the isocoumarin s, reviews the methods of synthesizing isocoumarin s, and places an emphasis on introducing and comparing such methods of synthesizing syntheticroutes of dihydro isocoumarin s as ozone oxidation, organic metal sythesis, catalytic oxidation and so on.

介绍了异香豆素类化合物在抗癌和其他药理方面的作用，综述了异香豆素类化合物的合成方法，着重介绍其中的二氢类异香豆素化合物的臭氧氧化法、金属有机合成法、催化氧化法、分子间成环缩合法等合成方法，并进行了比较。

Detailed time-dependent evolutions of the morphology and phase were systematically studied and the formation of both CuO nanostructured arrays was shown to be due to oxidation→ growth → dehydration and oxidation → dehydration → growth processes, respectively. The kinetically controlled nucleation and growth determined the final morphology of the CuO nanostructures.

系统研究了产物的物相和形貌随反应时间的演变情况，结果表明两种氧化铜纳米结构阵列分别是通过氧化→生长→脱水和氧化→脱水→生长过程形成的，其中动力学因素控制的成核与生长过程决定了氧化铜纳米结构的最终形貌。

The experimental results proved the intermediate product of H2S in the leaching of marmatite. The results also showed that oxygen, element sulfur disperser as well as chloride ions could accelerate the electrochemical oxidation of marmatite in sulfuric acid. The electrochemical oxidation of sphalerite was retarded but that of marmatite was promoted with the increase of acidity.

结果表明：在铁闪锌矿浸出过程中有H2S中间产物生成；通氧、元素硫分散剂以及氯离子引入浸出体系均能明显促进铁闪锌矿的电化学氧化；随硫酸浓度升高，铁闪锌矿的电化学氧化不断加强而闪锌矿的电化学氧化受抑。

The experimental results showed that, monochloroacetic acid and dichloroacetic acid enhanced photocatalytic hydrogen generation activity, but trichloroacetic acid did not improve it. The amount of produced H_2 increases almost proportionally to the irradiation time within 5 h irradiation. The photocatalytic oxidation of monochloroacetic acid and dichloroacetic acid mainly produced CO_2, HC1 and CH_2O, the photocatalytic oxidation of trichloroacetic acid mainly produced CO_2 and HCl.

实验表明，一氯乙酸、二氯乙酸的存在明显地提高了制氢反应效率，而三氯乙酸的存在却不能起到促进作用；反应5h内，反应生成氢的量与反应时间成线性关系；一氯乙酸、二氯乙酸光降解产物主要是CO_2、HCl和CH_2O，三氯乙酸光降解产物主要是CO_2和HCl；研究了溶液pH值对放氢反应的影响；在实验浓度范围内，一氯乙酸、二氯乙酸浓度对放氢反应的影响，表观上符合Langmuir-Hinshelwood关系式；考察了一氯乙酸、二氯乙酸在光催化剂表面的吸附。

Single ozone oxidation,single active carbon absorption and ozone oxidation-active carbon absorption technology were studied in order to discuss the practicability of removal of micro-content nitrobenzol in drinking water.

通过对O3氧化、活性炭吸附和O3氧化-活性炭吸附工艺的研究，探讨O3-活性炭工艺去除饮用水中少量硝基苯的可行性。

Department of Chemical Engineering, Chengde Petroleum College, Chengde, Hebei 067000, China）Single ozone oxidation, single active carbon absorption and ozone oxidation-active carbon absorption technology were studied in order to discuss the practicability of removal of micro-content nitrobenzol in drinking water.

承德石油高等专科学校化学工程系，河北承德067000 摘要：通过对0 氧化、活性炭吸附和0 氧化一活性炭吸附工艺的研究，探讨0 一活性炭工艺去除饮用水中少量硝基苯的可行性。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。