研究了2,5-二甲基己烷-2,5-二氢过氧化物合成需要的适宜的工艺条件。
Suitable process conditions for synthesis of 2,5 dimethylhexane 2,5 dihydroperoxide were investigated.
它将点燃固体推进燃料(HTPB,或称羟基封端聚丁二烯)和液体氧化剂(高挥发性过氧化物,HTP)的混合物持续20秒。
It will burn a mixture of solid propellant (HTPB, or hydroxyl-terminated polybutadiene) and liquid oxidiser (high-test peroxide, HTP) for 20 seconds.
以过氧化值(POV)、共轭二烯型氢过氧化物含量和脂肪酸相对含量的变化为指标研究了鱼油在不同体系中的氧化稳定性。
The oxidative stability of fish oil in different systems was studied by using peroxide value (POV), conjugated diene hydroperoxide content and fatty acids content as indexes.
亚磷酸二乙酯与AA、AMPS在二特丁基过氧化物引发剂存在下进行调聚反应,然后用浓盐酸水解。
Using ditertbutyl peroxide as initiator, diethyl phosphite reacted with AA and AMPS, then hydrolyzed with conc. hydrochloric acid.
在电子供体纤维二糖存在下,CDH可以还原由豆壳过氧化物酶(SHP)氧化多种芳香化合物所生成的产物。
In the presence of cellobiose, CDH could reduce many oxidized products catalyzed by soybean hull peroxidase (SHP).
结果表明,胶料需采用过氧化物硫化体系和助交联剂,用高温硫化和二次硫化工艺。
The results showed that the compound needed to use peroxide vulcanization system and aid cross-linker with high temperature cure and secondary cure process.
防止环戊二烯生成过氧化物的方法,可充以氮气长期贮存。
The method for preventing the formation of peroxides from cyclopentadiene is to seal it With nitrogen.
综述了国内外丁二烯过氧化物研究进展,主要包括丁二烯过氧化物的危害性、成因、危险评价和热稳定性,并对今后的研究方向进行了展望。
New progresses on butadiene peroxides at home and abroad are reviewed, mainly including hazards, reasons, danger evaluation and thermal stability and study trends in the future are forecasted.
比较各组大鼠肠黏膜丙二醛(MDA)含量、超氧化物歧化酶(SOD)和髓过氧化物酶(MPO)的活性变化;
The contents of malondialdehyde(MDA), the activity of superoxidase dismutase(SOD), and the activity of myeloperoxidase(MPO) in intestinal mucosa were measured respectively.
用实验分析验证了丁二烯系统自动爆炸的原因,即氧气进入系统形成了丁二烯聚过氧化物。
The cause for automatic explosion in butadiene systems, that is the formation of butadiene polyperoxide due to the entry of oxygen into the system, is verified through experiments.
目的研究神经生长因子(NGF)对正常小鼠、非肥胖性糖尿病(NOD)小鼠腹腔巨噬细胞过氧化物歧化酶(SOD)活性、丙二醛(MDA)含量的影响。
Objective To investigate the effect of nerve growth factor(NGF) on the activity of SOD and MDA content of peritoneal macrophages in the normal mice and the nonobase diabetes(NOD) mice.
以二叔丁基过氧化物(DTBP)为引发剂,在反应型双螺杆挤出机中进行ABS接枝马来酸酐的研究。
It was studied that ABS was grafted by MAH, using DTBP as initiator, and reacted in twin-screw extruder.
检测方法基于二甲酚橙和三价铁形成的复合物显色反应,而三价铁由过氧化物氧化二价铁得到。
The assay is based upon formation of a complex between Xylenol Orange and ferric iron, which is produced by the peroxide dependent oxidation of ferrous iron.
通过卤过氧化物酶生物转化与化学步骤结合将茚定量转化为(1S,2R)-茚氧化物和(1S,2R)-二氢茚二醇的方法。
Quantitative conversion of indene to (1S, 2R) indene oxide and (1S, 2R)-indanpiol by combination of haloperoxidase bioconversion and chemical steps.
目的:对血清脂质过氧化物测定———丙二醛试剂盒进行评价。
Objective:To evaluate the malondialdehyde kit for determining serum lipoperoxides.
为保证生产安全,提出了防止丁二烯自聚的措施和安全清理丁二烯储罐内过氧化物的方法。
The countermeasures against the autopolymerization of butadiene and method to clean peroxide in butadiene tank are presented.
在人工气候箱中,用不同低温和高温条件胁迫银杏幼苗,测定了叶片离子相对渗透率、超氧化物歧化酶活性、过氧化物酶活性、脯氨酸和丙二醛含量的相关变化关系。
Measured the relatively ratio of leaves ions-leakage, SOD, POD, and content changes of proline and malonaldehyde of Ginkgo seedlings with different temperature condition in man-made climate equipment.
一种残留农药降解剂,其特征所述的降解剂是纳米粒径的二氧化钛粉体或纳米粒径的氧化锌粉体或过氧化物或脂肪酸蔗糖脂或碳酸盐或碱。
The residual pesticide degrading agent is nano size titania powder, nano size zinc oxide powder, peroxide, sucrose ester of fatty acid, carbonate or alkali.
但由于丁二烯过氧化物本身合成与测试的复杂性和危险性,深入而系统地研究丁二烯过氧化物的危险性及其机理显得十分必要,同时将面临重重困难。
Owing to the complexity and danger in the synthesis and testing of the compound itself, further study on hazard and mechanism of this compound is urgently needed, though it's very difficult.
果实雨二醛含量增加,质膜透性增大,过氧化物含量先逐渐下降,末期又有升高现象,并且果心比果肉中的过氧化物含量高。
The malonaldehyde (MDA) content increased gradually. The content of peroxidate decreased gradually at first but increased at end, and it was more in core than that in flesh.
我们检测了小鼠血清活性氧(ROS)、总超氧化物歧化酶(T - SOD)、丙二醛(MDA)、谷胱甘肽过氧化物酶(GSH - PX)和E2水平。
The levels of serum reactive oxygen species (ROS), total superoxide dismutase (T-SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-PX) and E2 were also detected.
结果表明:干旱引起叶片枯黄,枯黄率与甘蔗叶片膜脂过氧化物丙二醛(MDA)含量和质膜透性的变化趋势一致;
The results showed that drought withered the leaves and the withering rate was in the same tendency as the MDA content and plasma permeability of leavers;
结果表明:干旱引起叶片枯黄,枯黄率与甘蔗叶片膜脂过氧化物丙二醛(MDA)含量和质膜透性的变化趋势一致;
The results showed that drought withered the leaves and the withering rate was in the same tendency as the MDA content and plasma permeability of leavers;
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