氧化剂

The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic N2 nitramino geminal difluoramino oxidizers.

目前该领域的研究工作主要集中在二氟氨基取代环氧丁烷聚合物合成，新戊基二氟氨基硝酸酯增塑剂制备，以及环N2硝胺基偕二氟氨基氧化剂的分子设计与合成上。

A review of the western countries′ novel developments in the research of high energy hydrazine nitroform and HNF-based propellants.

综述了欧美国家在研究高能氧化剂硝仿肼和以硝仿肼为基的固体推进剂等方面所取得的最新进展。

It does not consume expensive oxidizing chemicals, the catalyst is nonhazardous and inexpensive. The method is simple and high efficient, which generally achieve complete mineralization of organic pollutants in water to such inorganics as CO〓 and H〓O.

它不需要昂贵的氧化剂，催化剂无毒价廉，方法简单，通常能将水中的有机物氧化为CO〓和H〓O〓等简单无机物。

Recent developments of clean oxidation systems catalyzed by polyoxometalates are summarized in detail. The emphasis is on the epoxidation reaction of olefinic compounds, oxidation of alkanes and aromatic compounds with the comparatively ideal oxidants, hydrogen peroxide and molecular oxygen respectively.

文本总结了多金属氧酸盐在液相清洁催化氧化方面的进展，主要针对以过氧化氢和分子氧为氧化剂的烯烃类化合物的环氧化反应、烷烃和芳香族化合物的氧化反应，并详细探讨了此类氧化反应的反应机理。

Recent developments of clean oxidation systems catalyzed by polyoxometalates are summarized in detail. The emphasis is on the epoxidation reaction of olefinic compounds, oxidation of alkanes and aromatic compounds with the comparatively ideal oxidants, hydrogen peroxide and molecular oxygen respectively. The oxidation mechanisms are elucidated in detail.

文本总结了多金属氧酸盐在液相清洁催化氧化方面的进展，主要针对以过氧化氢和分子氧为氧化剂的烯烃类化合物的环氧化反应、烷烃和芳香族化合物的氧化反应，并详细探讨了此类氧化反应的反应机理。

These changes were prevented by genistein (a protein tyrosine kinase inhibitor) and antioxidant N-acetyl-L-cysteine, but promoted by sodium orthovanadate (a protein phosphatase inhibitor), which were administered to the SD rats 20 min before ischemia.

进一步的研究表明，缺血前20 min腹腔注射给药，然后缺血30 min，发现蛋白酪氨酸激酶抑制剂染料木黄酮和抗氧化剂N-乙酰半胱氨酸能显著地抑制核内STAT3的磷酸化水平及DNA结合活性的增加(磷酸化水平从2.3和2.5倍分别降为1.2和1.4倍， DNA结合活性则从2.8和3.7倍分别降为1.1和1.5倍)，而蛋白酪氨酸磷酸酶抑制剂矾酸钠则能明显地促进他们的增高(磷酸化水平从2.0倍增到3.4倍， DNA结合活性从3.1倍增为5.1倍)。

Three 5-(3'-indoyl)-oxazole compounds synthesized showed potent antioxidative effect and they would be a good antioxidants.

合成的目标化合物中有3个化合物有较好的抗氧化活性，有可能开发成为良好的抗氧化剂。

For some characteristic groups in the macromolecules, whose reducing power isvery weak, the suitable oxidator is difficult to select in order to make graft copolymerization.

对于聚酰胺等大分子上还原能力较弱的特征基团，很难找到氧化能力合适的氧化剂，组成氧化还原引发体系，进行接枝共聚。

It has been a difficult problem to figure out efficient methods in treating coking plant wastewater because the degradation is difficult. Homogeneous Fenton reagent is one of oxidation methods which applies H_2O_2 as oxidation and Fe~(2+) as catalyst. In reaction,·OH is one of free radicals with excellent oxidizability.

Fenton试剂法是一种采用过氧化氢为氧化剂、以亚铁盐为催化剂的均相催化氧化法，反应中产生的·OH是一种氧化能力很强的自由基，能氧化废水中有机物，从而降低废水的色度和COD值。

Our data suggest that widely used oxidation measures, such as ex-vivo LDL oxidizability, do not reflect the degree of atherosclerosis; and long-term beneficial effects of relatively low doses of antioxidants may be outweighed by high levels of plasma cholesterol in WHHL rabbits.

研究表明：广泛应用的氧化检测，例如体外LDL氧化度并不能反应动脉粥样硬化的程度；WHHL家兔血浆胆固醇水平过高会抵消长期给药抗氧化剂的疗效。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。