查询词典 free radical

Objective To investigate the effect of long-lived free radical on cellular damage induced by ionization radiation.

目的 研究长寿命自由基在辐射损伤中的作用。

Objective To develop an OA kneepad and explore its mechanism and efficacy on the prevention and treatment of osteoarthritis of the knee through observing the effects of OA kneepad on cytokines, matrix-dissolution, hyaluronic acid, oxygen free radical metabolism, articular cartilage micro-structural changes, cell proliferation and apoptosis.

目的 研制OA护膝，并通过观察OA护膝对骨性关节炎细胞因子、基质溶解素、透明质酸、氧自由基代谢、关节软骨宏微观结构变化和细胞增殖、凋亡的影响，探讨其防治膝骨性关节炎的机制及疗效。

The research aimed to compare the scavenging abilities of total flavone from Lygodium japonicum with different solvents to free radical activity.

［目的］比较不同溶剂提取海金沙总黄酮对自由基活性清除能力的大小。

The research indicated that under the compound use of hydroquinone and methyl quinone or independent use of phenothiazines or nitrogen oxygen free radical made the polymerization retarder, opposite-methyl-phenylsulfon made the esterification catalyst, toluol made the backflow including water condition, the acid mellowly compared to when it was 1.15, the production rate of the synthesis methylacrylic acid polyethylene glycol single methyl ether (400) ester may achieve 98.9%, was extremely similar to the overseas product functional group structure.

研究表明，在氢醌、甲醌复合使用或者单独使用吩噻嗪、氮氧自由基哌啶酮作阻聚剂，对甲苯磺酸作酯化催化剂、甲苯作回流带水的条件下、酸醇比为1.5时，合成的甲基丙烯酸聚乙二醇单甲醚(400)酯产率可以达到98.9%，与国外产品官能团结构十分相似。

The course of thermal reaction for iso-butyl mercaptan, di-n-butyl sulfide and di-n-butyl disulfide is free radical mechanism.

对于异丁硫醇、丁硫醚、丁基二硫化物的热反应，其热转化的途径是自由基机理。

Free radical metabolic and produce performance of milch cow in production conditions.

试验一：95只雄性SD大鼠随机分成4组。

Antioxidants can neutralise free radical's devastating effects on our bodies .

抗氧化剂可以消除自由基的破坏性影响我们的身体。

Accelerate to produce ossein, improve skin firmness, promote the metabolism of horniness, protect skin from free radical, effectively remove fine liens, tender rough and uneven skin and make skin moist and shining.

能激发肌肤内层的骨胶原合成，增强肌肤弹性，促进角质新陈代谢，避免自由基对肌肤的伤害，有效减少细纹，抚平粗糙不平滑的肌肤，令肤质细滑而有光泽。

The results showed that both increasing the KMnO4 concentration and using acidic or alkaline solution promoted the removal of Hg^0. The reasons are that H2SO4 in solution facilitates the adsorption of Hg^0 on MnO2, and that free radical OH produced in alkaline solution can oxidate Hg^0. High temperature has a negative effect on the removal of Hg^0, and the effect of Hg^0 initial concentration can be neglected.

研究结果表明，高猛酸钾初始浓度的增加、强酸或强碱条件均有利于Hg^0的去除，H2SO4的存在促进了Hg^0在MnO2上的吸附，而强碱水溶液中产生的OH间接氧经了Hg^0；反应温度的升高抑止了Hg^0的去除，而Hg^0初始质量浓度对反应的影响可忽略；KMnO4。

When oxyhydrogen free radical release the dummy man smell, directs effectively the mosquito.

氢氧自由基释放时模拟人体气味，有效把蚊子引过来。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

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。