酸化的

The effects of reaction time, mole ratio of reactants and amount of catalyst on yield of ketal were investigated by using the [SO3H-bPy] [H2PO4] ionic liquid as catalyst. Results show that the ionic liquid was an efficient catalyst for the ketalization with high conversion and selectivity in mild conditions.

以磺酸基功能化的吡啶磷酸类离子液体[SO3H-bPy][H2PO4]为催化剂，系统考察了反应时间、酮与醇的配比、催化剂的用量及催化剂重复使用、不同阴离子、阳离子等因素对反应的影响，优化了反应条件。

In this study, the effects of mashing variables such as mashing-in temperature, time and pH, mash thickness,grist coarseness and composition, and stirring regime on the release of ferulic acid were examined.

在这项研究中，需检测糖化过程参数如麦汁的温度、时间、PH、麦汁的浓度、谷物的粗糙度和组成成分以及搅拌方式对阿魏酸释放的影响。

The effect of the introduction of sulfonic group on the improvement of conductivity and solubility in organic solvents and water as compared with polyaniline are specifically analyzed.

结合典型实例，论述了磺化聚苯胺的合成及成膜方法，着重分析了磺酸基的引入对聚苯胺电导性及其在有机溶剂和水中的溶解性的改善作用。

In this paper, a moving-boundary problem occurring under the acidifying was discussed, which was transformed into a coupled problem of an initial-boundary value problem of nonlinear parabolic equation and an initial value problem of differential equation.

建立了油气层酸化过程中的动边界模型，经Landau变换后，将所求问题转化为定边界上的非线性抛物型方程初边值问题和常微方程的初值问题的耦合问题，并给出了耦合问题的全离散格式。

The effect and mechanism of alkali-treatment, the acidifying bleaching mechanism, the interactions and mechanism between electrolytes, food gums and agar during the process of agar from Gracilaria species were profoundly studied in this thesis, the mechanism of processing high strength agar from Gracilaria was explored.

本文对江蓠加工琼胶过程中的碱处理，酸化漂白，琼胶与电解质、食品胶之间的相互作用及作用机理等方面进行了深入的研究，探讨出江蓠加工高强度琼胶的机理。

The binding of bis-ANS bound to blue membrane at different temperature are only one binding sites. 4. The research results of fluorescence, absorption spectra and stopped flow method used to track the process of transition from acidifying purple membrane to blue membrane indicate that the transition of the characteristic absorption band of retinal(from 570 to 605 nm) and the maximum excitation wavelengths of bacteriorhodopsin(from 326 to 331 nm) occurres at a narrow concentration range of HCl(11.5-13.3 mmol/L). The transition process performs within 0 to 2s.

通过荧光光谱、吸收光谱和停流技术对酸化紫膜转变成蓝膜变化过程的跟踪研究表明，视黄醛特征峰的递变(570→605nm)以及蛋白质荧光最大发射波长的递变(326→331nm)都是在狭窄的HCl浓度范围(11.5-13.3mmol／L)内同步进行的，该转变过程在0-2s之内极快完成。

That is to say, less and less of the sea will remain hospitable for calcifying organisms.

在早年的研究中，许多科学家判断，海洋酸化问题不大，因为至少对方解石而言，表层水仍然保持过饱和，而方解石是最坚硬的一种碳酸钙。1990年代，迈阿密大学的海洋生物学家兰敦进行了一项精妙的实验，来验证科学家的猜测。

First of all, the relationship between concrete strength、 acidified depth and the solution density of SO_4~(2-)、H~+, marinating period and concrete initial strength before marinating is established with dimension analysis method.

首先，本文通过量纲分析的方法确定了混凝土的强度和酸化深度与浸泡液的SO_4~(2-)离子浓度、H~+离子浓度、浸泡时间和混凝土初始强度之间的含有待拟和系数的函数关系式。

The use of Natural Growth Promoters, including acidifiers, probiotics and phytogenics germs and to optimize digestive functions(Steiner,2006). Depending on individual farm conditions, suitable combinations of different NGPsTM have proven efficacious in substituting AGPs.

天然生长促进物，酸化剂，前生素和植物来源的微生物的应用效果，依赖于各个农场的实际条件，不同 NGPsTM 的合适组合，已经被认为可以替代抗生素。

Cis-C=C configuration on 2 position is easily isomerized to trans-form in environment according to literatures, but cycloproyl do it difficut relatively. So, replacement of 2,3- allyl unit by cyclopropyl group might give a practical method to get over the problem.

为解决脱落酸2位双键在环境中易光异构化为反式结构的问题，依据电子等排体原理，将2，3-位的烯丙型的结构改变为环丙型结构，将可能解决光异构化的问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。