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It is shown that main reason causing browning and senescence of Nelumbo nucifera gaertn in the storage is that catalytic oxidation of polyphenol oxidasein its tissue make phenols into black pigment.

指出莲藕在贮藏过程中发生褐变和衰老的主要原因是组织内部的多酚氧化酶催化氧化酚类物质产生黑色素。

Currently, lipid oxidation is being found to be involved in the nerve cell degeneration of Alzheimer's disease.

目前，脂质氧化是因被发现参与，在神经细胞变性，阿尔茨海默病的。

It is shown that the stainless steel without Nickel or Chromium has good mechanical properties and good resistance to corrosion and oxidation, and properties equivalent to 304 and 305 stainless steels.

结果表明：本文所设计的无镍铬不锈钢具有优异的力学性能，良好的高温抗氧化性和耐海水腐蚀性，且达到ZG304、ZG304不锈钢的性能指标。

Their derivatives are bio-oxidation of nicotinamide Coenzyme some important components.

其衍生物烟酰胺是生物氧化中某些重要辅酶的组成部分。

The nicotinamide coenzymes can undergo reversible oxidation-reduction reactions with specific substrate s in the presence of the appropriate dehydrogenase.

在有适当的脱氢酶时烟酰胺可以对特定的底物进行可逆的氧化-还原反应。

The nicotinamide coenzymes can undergo reversible oxidation-reduction reactions with specific substrates in the presence of the appropriate dehydrogenase.

在有适当的脱氢酶时烟酰胺可以对特定的底物进行可逆的氧化-还原反应。

In this paper,the laser hardening technological parameters and the nigrescence technology with surface oxidation have been studied on tiny workpieces of 4Cr13 stainless steel,while the influences of the laser technology and various lapping ratios on hardness,depth and microstructures of the hardening layer have been explored.

研究了 4Cr13不锈钢细小零件激光表面强化工艺参数和材料表面氧化法发黑工艺，探讨了激光工艺和不同的搭接率对强化层硬度、淬硬层深度和表层组织结构的影响。

Internal oxidation and depletion of niobium in the alloy have not been observed.

研究了Fe－15Nb和Fe－30Nb合金在600－800℃，0.1MPa纯氧中的氧化行为。

The oxidation behavior of these alloys was discussed in terms of the low solubility of niobium in cobalt and the microstructure of the alloys and the oxide scales.

从合金的和所生成氧化膜的显微组织特征，尤其是从铌在钴中溶解度低的角度，对合金的氧化行为进行了讨论。

A new method including the nitration and oxidation of synthesis of Nitro , benzodioxide acid was introduced.

报道了直接以黄樟油为原料，经硝化和氧化制备硝基胡椒基酸的新工艺。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。