The catalyst system and technics for oxidative carbonylation of phenol to diphenyl carbonate (DPC) has been studied.
针对苯酚氧化羰基化合成碳酸二苯酯(DPC)洁净化工过程用催化剂和工艺条件进行了较系统的研究。
For one, chocolate is a plentiful source of antioxidants. These are substances that reduce the ongoing cellular and arterial damage caused by oxidative reactions.
举例来说,巧克力有丰富的抗氧化剂,能减少氧化作用对细胞和动脉的持续破坏。
If these locks are picked (for example by oxidative damage to the genes that control them, as discovered by Dr Ames), the result is unconstrained growth-in other words, cancer.
如果这些基因锁被解除(例如,艾姆斯博士发现控制这些锁的基因遭到氧化毁坏的情况),后果就是细胞的无限增生,换句话说就是细胞癌变。
An overview on the development of oxidative stress and damage from the free radicals, and the defenses systems for antioxidation.
该文对自由基所引起的氧化胁迫和伤害,以及各种抗氧化防御系统进展,作一综述。
oxidative stress in general and neurodegenerative disease in particular has been suspected for a long time.
长久以来,人们一直怀疑一般的氧化应激和特殊的神经退行性疾病之间有直接联系。
Carnitine has been proposed as a treatment for many conditions because it helps reduce oxidative stress.
肉碱已提出许多条件作为一个治疗,因为它有助于减少氧化压力。
Thus, we suggest that the appropriate sorghum distillery residue supplementation in chicken diet can be suitable for an oxidative stress animal model.
综合以上结果,我们认为在蛋鸡的饲料中添加适当比例的高梁酒粕,能够建立氧化紧迫现象的动物模式。
Our studies provide further evidence for links between oxidative stress, inflammatory processes and common human diseases such as type 2 diabetes.
我们的研究进一步证明氧化应激、炎症过程同人类共同疾病(如2型糖尿病)之间存在关联。
The excellent oxidative stability and low deposit formation tendency allows for service lives in excess of 8000 hours.
它具有良好的氧化稳定性,不容易生成积炭,使用寿命超过8000个小时。
Currently, oxidative desulfurization (ODS) was considered one of the promising processes for its mild reaction condition, simple equipment design, and highly efficiency.
目前,氧化脱硫法由于其反应条件温和、设备简单、脱硫效果好,有较为广阔的应用前景。
In this paper, the possible mechanisms for lead - induced oxidative damage and application of several antioxidants in treatment of lead poisoning are reviewed.
本文综述了国外近年来有关铅引起细胞氧化损伤的机理及抗氧化剂在治疗铅毒中的应用进展。
That system is composed of two kinds of common inorganic salts, which has high desulfurization efficiency (more than 90%), fewer by-reactions, and can be oxidative regenerated by air for circulation.
该体系由两种常见的无机盐组成,吸收反应简单,脱硫效率高(90%以上),副反应少,可用空气氧化再生,循环使用。
Objective To investigate the oxidative status in septic patients and explore a new strategy for sepsis.
目的研究脓毒症病人氧化应激状态,为脓毒症治疗探索新方法。
The analytical method for components of process gases in oxidative dehydrogenation of butene into butadiene was improved by increasing the determinations of volume ratio CO/CO2 and the H2 content.
改进了丁烯氧化脱氢制丁二烯生成气各组分的分析方法,增加了对生成气中CO对CO_2体积含量比率及H_2含量的测定。
In this paper neural network partial least square (NNPLS) was used to establish a robust reaction model for a multi-component catalyst of methane oxidative coupling.
神经网络偏最小二乘法(NNPLS)被应用于一种甲烷氧化偶联多组分催化剂的鲁棒反应模型的建立。
A process for plating Sn on metal fasteners was introduced, including degreasing, halide Sn plating, oxidative blackening, polishing and varnishing.
介绍了一种金属钮扣电镀古锡的工艺,其主要工序包括除油、卤化物镀锡、氧化发黑、抛光、罩清漆等。
Folate may interfere with the efficacy of methotrexate, and antioxidants may prevent the cellular oxidative damage to cancer cells that are required for efficacy of radiotherapy and chemotherapy.
叶酸可能干扰氨甲喋呤的疗效,抗氧化剂可能会阻断放化疗效果所必需的对癌细胞的细胞氧化损伤。
Objective To determine a perfect model for cochlear oxidative damage.
目的确定一个理想的耳蜗氧化损伤模型。
This paper reported the results of laboratory study and industrial development of the new type non chrome ferrite W-201 catalyst for n-butene oxidative dehydrogenation to butadiene.
本文报导了丁烯氧化脱氢制丁二烯新型无铬铁系w- 201催化剂的实验室研究和工业生产结果。
The activation of oxygen is beneficial for the oxidative dehydrogenation of propane.
氧的活化是催化剂在丙烷氧化脱氢中具有良好活性的原因。
The six MWT, exercise mimicking the patients′ day to day activities, could increase plasma proinflamatory cytokine levels and oxidative stress in CHF patients for short time.
结论CHF患者较正常人运动耐受性降低,接近CHF患者日常生活活动的运动将短时间增强血浆可溶性细胞因子和氧化应激水平。
The promotion effects of N-donor ligands for catalytic oxidative carbonylation of methanol were studied.
研究了几种单齿和双齿含氮配体在氧化羰化反应中的助催化性能。
Production of ferrous powder by oxidative roast of copperas, a byproduct of titanium pigment was introduced, and optimum process for the transformation of sulfur to sulfur trioxide was studied.
介绍了以硫酸法钛白粉副产物绿矾为原料,氧化焙烧生产铁红粉,并研究了氧化反应中硫转化为三氧化硫的适宜工艺条件。
Analyses oxidative mechanism and technique control principles about cyclohexane, points out a little control key strongholds, it has certain sense for guiding production.
分析了环已烷氧化机理和工艺控制原理,指出了环已烷催化氧化法在生产中的一些控制要点,对实际生产有一定的指导意义。
Objective to evaluate the viability changes of rat precision-cut lung slices after hydrogen peroxide (H2O2) injury and to establish a simple model for the research on lung oxidative injury.
目的研究过氧化氢(H2O2)对离体肺组织精细切片活性的影响,建立肺组织氧化损伤的简易模型。
The body has its own defense system for combating oxidative damage, but it does not always do enough.
人体拥有自己的防御氧化损伤的系统,但并不总是做完美。
We propose that NTRC constitutes an alternative system for chloroplast protection against oxidative damage, using NADPH as the source of reducing power.
我们认为NTRC利用NADPH作为还原力来源,形成了保护叶绿体免受氧化伤害的替代系统。
They are a supercharged form of oxygen, which can cause oxidative tissue damage leading to disease - for example, triggering the inflammation process that causes clogged arteries.
它们是超动力形式的氧,可能引起组织的氧化损伤而导致疾病——例如触发导致动脉堵塞的炎症过程。
Conclusion PNS can improve brain energy metabolism and mitochondrial function of oxidative damaged rats, suggesting that PNS could be used for the treatment of AD.
结论三七皂甙可以有效地改善氧化损伤型类ad大鼠脑能量代谢及线粒体功能,提示其可用于AD的治疗。
Active oxygen has an important role in the oxidative damage of biomacromolecules for example DNA, protein and so on.
活性氧在生物大分子如DNA、蛋白质等氧化性损伤中起着非常重要的作用。
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