原子转移自由基聚合是一种新的活性自由基聚合方法。
Atom transfer radical polymerization is a new type of living radical polymerization method.
可逆加成-断裂链转移(RAFT)聚合是一种基于可逆链转移的活性自由基聚合技术。
Reversible addition-fragmentation chain transfer (RAFT) polymerization was a novel method of living radical polymerization.
对聚合动力学和分子量的控制进行了研究。研究表明,此种苯乙烯本体聚合体系具有明显的活性自由基聚合特征。
The results confirmed the distinct living polymerization character of the reaction system and showed that among the three obtained RAFT agents BDB was the best for styrene bulk polymerization system.
十六烷值改进剂受热容易分解产生活性自由基、降低了柴油的自燃点,从而缩短了滞燃期,改善了发动机的燃烧性能。
The free radicals can reduce spontaneous combustion temperature of diesel fuel greatly and shorten the ignition delay period, and thus improve the combustion performance of diesel engine.
十六烷值改进剂受热分解产生活性自由基,使得柴油的自燃活化能大大降低,从而缩短发动机燃烧的滞燃期,改善发动机的燃烧性能。
The free radicals can make spontaneous combustion activation energy of diesel fuel reduced greatly and shorten the ignition delay period, and thus improve the combustion performance of diesel engine.
海克米希望进一步的实验能够确定活性氧自由基是如何延长蠕虫的生命周期的。
Hekimi hopes further experiments will determine exactly how reactive oxygen species increase lifespan in the worms.
当阳光照射在纳米管上时,纳米管释放出高能量的载荷子,使得水分子分解为两种活性成分-氢氧自由基和氢离子。
When light falls on the nanotubes, they release energetic charge carriers, which split the water molecules inside them into two reactive components - hydroxide radicals and hydrogen ions.
新加坡国立大学的巴里·哈利维尔同意上述关于活性氧自由基的说法,他说:“没有活性氧自由基人活不成,谁也不希望这样,但是最后也许正是它们要了你的命。”
"You cannot live without them, nor should you wish to, but they will probably help to kill you in the end," agreed Barry Halliwell of the National University of Singapore, of reactive oxygen species.
这种情况发生的原因是身体机能接触氧后产生的副产物自由基的释放,自由基是一类具有高活性的分子,对人体具有巨大的威胁。
This happens because of exposure to free radicals, highly reactive molecules that are byproducts of bodily functions involving oxygen (which is just about all of them).
当血糖过多时,可以使上述酶的酶蛋白糖基化,催化活性降低,过暇化氢和氧自由基清除减慢。
When hyperglycaemia, may cause the above enzyme the zymoprotein glycosylation, the catalytic activity to reduce, crosses the free time hydrogen and the oxygen free radical elimination reduces speed.
氧化损伤,或氧化应激,出现在被称为自由基的高活性分子攻击和破坏细胞蛋白质,脂类(脂肪)和脱氧核糖核酸时。
Oxidant injury, or oxidative stress, occurs when highly reactive molecules called free radicals attack and damage cellular proteins, lipids (fats) and DNA.
化学活性高的自由基可使不饱和脂肪酸过度氧化,使细胞功能突变或衰退,引起组织增殖和坏死而产生置人于死地的疾病。
Chemistry high activity of free radicals can make the unsaturated fatty acid oxidation, making the cell function excessively, or recession mutations and proliferation and necrosis centralis disease.
对比分析乙醇浓度和反应时间对四种蛋清蛋白酶解物清除DPPH自由基活性的影响情况。
Effects of ethanol concentration and reaction time were compared on DPPH free radical scavenging activity of egg white protein hydrolysates in this paper.
实验室研究表明,新兴白藜芦醇具有抗氧化活性,可以帮助消除有害的自由基。
Emerging laboratory research suggests that Resveratrol has antioxidant activity that may help neutralize harmful free radicals.
测定了芦荟皮的超临界CO_2提取物和溶剂提取物的自由基清除活性。
The free radical scavenging activities of extracts of Aloe vera of leaf skin by supercritical CO2 extraction and solvent extraction were determined.
目的:研究赤芍总苷(TPG)提取液体外清除自由基和抗凝血的活性。
OBJECTIVE: To analyze and compare the free radical-scavenging and anticoagulant activities of Total paeony glycoside (TPG) extracts in vitro.
氯丙嗪对心肌缺血性膜损伤有保护作用,其机制与抑制PLA_2活性及抗自由基的作用有关。
The results suggest that chlorpromazine had a protective effect on membrane damage of ischemic myocardium, which probably resulted from its inhibiting PLA_2 activity and resisting free radicals.
恒顺香醋乙酸乙酯萃取物具有弱自由基清除活性,主要清除活性成分为酚性和酸性化合物。
An ethyl acetate extract of Hengshun aromatic vinegar (he) exerted a weak radical scavenging activity, and the main components were phenolic and acidic compounds.
几乎所有功能食品都要评价其清除自由基活性。
The capability of scavenging free radicals is an index to evaluate almost all functional foods.
中药、海洋药物中含有的具有清除自由基能力的活性成分,具有广泛的药理作用和临床应用。
Radical-scavenging activity composition in traditional Chinese medicine and marine medicine had many pharmacology effects and wild clinical application.
放疗的主要机制是通过放射线对肿瘤的电离作用,直接或间接诱发自由基、活性氧来杀伤肿瘤细胞。
The mechanism of radiotherapy is its ionization action, which can kill the tumor cell directly or indirectly by generation of free radicals, reactive oxygen species to cure the disease.
自由基活性聚合是人们在们在近年来探索的一类新的聚合反应。本文简要地综述了这类反应的进展。
Living Polymerization by radical mechanism is a new type of reaction which has been explored recently. In this paper, the developments of these reactions are reviewed.
目的:观察黄连解毒汤交叉配伍对活性氧自由基的清除作用。
Objective: To observe the scavenging effects of Coptidis Toxin Resolving Decoction (cross compatibility) on oxygen free radicals.
表明细胞内钙信使系统的活化和活性氧自由基的积累与果实成熟衰老密切相关。
Thus, it indicated that the stimulation of calcium messenger system and accumulation of active oxygen free radical were closely related to fruits maturation and senescence.
表明细胞内钙信使系统的活化和活性氧自由基的积累与果实成熟衰老密切相关。
Thus, it indicated that the stimulation of calcium messenger system and accumulation of active oxygen free radical were closely related to fruits maturation and senescence.
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