反应率

The paper studied the scavenging active oxygen radicals of brown pigment from chestnut shell. The results showed that the brown pigment had scavenging effects on hydroxyl radical, superoxide anion radical and aliphatic radicals on lipid-peroxidation. In the range of test concentration, the maximum scavenging or inhibition rate of the brown pigment to hydroxyl radical generated by Fenton reaction, superoxide anion radical generated by illuminating riboflavin system and linoleic acid auto-oxidation was 83.0%, 82.1% and 88.5% respectively.

从清除羟基自由基和超氧阴离子自由基、抗脂质过氧化以及还原能力等方面对板栗壳棕色素的抗活性氧自由基进行了试验研究和评价，结果表明：板栗壳棕色素对Fenton反应产生的羟基自由基和光照核黄素产生的超氧阴离子自由基均具有较强清除作用，对脂质过氧化过程中产生的脂自由基和脂过氧化自由基有明显的抑制作用，且在试验浓度范围内，其最大清除率或抑制率分别可达到83.0%、82.1%和88.5%。

The color fastnesses of treated fabrics dyed with Direct Black GF could compare beauty with sulfur black or reactive black. The reflectivity curve fell greatly compared with untreated, and the darkening effect made it possible to get very full black colour with excellent wet fastness with relative small amount of the dye .

经溶胶-凝胶整理后，直接黑GF的各项色牢度能与硫化黑、反应性黑相媲美，反射率曲线较处理前有较大幅度的降低，增深效果使得用较少的染料染得较浓的黑色成为可能。

The color fastnesses of treated fabrics dyed with Direct Black GF could compare beauty with sulfur black or reactive black. The reflectivity curve fell greatly compared with untreated, and the darkening effect made it possible to get very full black colour with excellent wet fastness with relative small amount of the dye.

经溶胶-凝溶胶一凝胶技术在纺织上的应用与研究摘要胶整理后，直接黑GF的各项色牢度能与硫化黑、反应性黑相媲美，反射率曲线较处理前有较大幅度的降低，增深效果使得用较少的染料染得较浓的黑色成为可育旨。

Under the best conditions optimized above, the decolorization rate of direct fast turquoise blue GL was 94.3% after 70 min catalyzation with the laccase from G.

以上述最适脱色条件对直接耐晒翠蓝GL进行脱色实验，反应70 min，脱色率可达94.3%。

Cases were studied with this new therapy method,contrasting to the traditional thread- drawing method. The cure rate .relapse rate,healing time , postoperation reaction, sequelae and the prssure of the anal canal were abserved.

并与传统的挂线疗法进行对照，就其治愈率、复发率、治愈时间、术后反应、后遗症及肛管压力的变化等进行对比研究。

Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.

选用醋酸锌作催化剂，使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h，合成6-甲基-1，3-噁嗪-2，4-二酮，产率达48.8％，较文献报道值高出了33％。

The expression of one-dimensional mathematical model of vertical migration of ammonia in the CRI system is:The parameters in the CRI model are determined as following: the retardarce coefficient is determined by static isothermal absorption experiment, the velocity of sewage travel through the soil column is determined by permeability test, the vertical dispersion coefficient is determined by test the electric conductivity of tracer in the dispersion experiment, the rate of nitrification and denitrification is determined by test of Baps technology.

依据单一氨氮、硝氮配水条件下的试验结果，引入多孔介质的溶质运移理论及对流-弥散方程，考虑NH4+-N在CRI系统中的运移受到对流和水动力弥散作用的影响，并吸附-解吸、硝化与反硝化3个过程，首次将配水流经CRI土柱的孔隙水流速方程与CRI土柱内发生的、以氧为约束条件的硝化、反硝化过程联系起来，建立了CRI系统一维垂向氨氮运移转化数学模型，表达式为：研究分别通过静态等温吸附实验率定了模型方程中的阻滞系数、通过渗滤试验测定了土柱中的孔隙水流速、通过测定弥散试验中示踪剂的电导率确定了纵向弥散系数、通过气压过程分离技术测定了土柱中的总硝化与反硝化反应速率常数，最后通过测定土柱沿程氧化-还原电位的方法分析氨氮在CRI系统中的运移转化机理。

These novel reagents were treated with base to produce polystyrene-supported a-seleno carbanions, which reacted with alkyl halides, followed by stereospecific selenoxide syn-elimination to give 2i-vinylphosphonates and is-vinylsulfones respectively.

它们在碱的作用下形成α—硒基碳负离子，然后与卤代烃发生烷基化反应，烷基化后的树脂可以通过温和条件下的氧化消除以良好产率和较高纯度分别合成了烯基磷酸酯和烯基砜。

The method of electroless nickel plating was used in this study, let Ni-P particle is suspended form the plating solution, therethrough spontaneous reaction use the alloy is clodding full of the Glass Fiber Woven Cloth, attach the Glass Fiber Woven Cloth have like alloy particle good conductivity, Improved the electric properties of this fibers and help improved high electromagnetic shielding, with Theromoset Resin mixture the conductivity filler graphite, composite with High Electromagnetic Shielding Composites.

摘要本研究使用无电极镀镍之方法，将粒子悬浮在电镀液中，籍由氧化还原反应使玻璃纤维不织布得到完整的包覆金属层，并赋予玻璃纤维不织布具有纯金属粒子一般优异的导电率，藉此提高纤维之导电性并且有助于增加遮蔽电磁波的能力与效果，再与热固性树脂并混入导电性填充材石墨粉墨，复合成具电磁波遮蔽之复合材料。

The influences of the reaction conditions on the grafting rate of dibutyl maleate to black N330 and the grafted black N330 on the physical properties of NR vulcanizate were investigated.

探讨炭黑N3 3 0表面固相接枝顺丁烯二酸二丁酯的反应条件对DBM接枝率的影响及炭黑接枝DBM对NR硫化胶物理性能的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。