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The application, proposed hydrotalcite-like compounds as a new type of environmentally friendly solid catalysts in the aldol condensation, nitrile hydrolysis, epoxide ring-opening reaction of the oxidation of aromatic compounds, alcohols oxidation, reduction of nitro compounds, and many other important reactions in organic synthesis has an important application potential, and with little pollution compared to conventional catalysts, easy separation of advantages of high reactivity.

叙述了水滑石类化合物作为固体酸碱催化剂、氧化还原反应催化剂、催化剂载体等方面的应用情况,提出了水滑石类化合物作为一类新型的环境友好的固体催化剂,在醇醛缩合、腈类水解、环氧化物的开环反应、芳烃类化合物的氧化、醇类氧化、硝基化合物的还原等许多重要的有机合成反应具有重要的应用前景,并且与传统催化剂相比具有污染小、易分离、反应活性高等优点。

In the second chapter, the operating principle of solid-state laser is analyzed. Based on the model of four-level system and with the space-related rate equations, the space distribution of laser beam and pump beam, the threshold pump power, the output power, the slope efficiency, the input-output characteristic and the effect of space variables on the output character are studied. Also, the introcavity second harmonic generation theory is discussed.

第二章分析了固体激光器的工作原理,以四能级系统为模型,从与空间相关的速率方程出发,研究了泵浦激光和振荡激光的空间分布、阈值功率、输出功率与斜效率、LD端面泵浦固体激光器的输入输出特性及各空间变量对输出特性的影响,并讨论了腔内二次谐波产生理论。

Bumble Bee Solid Milk Chocolate Gift Box - Solid milk chocolate bumble bee designed foil wrapped chocolate.

大黄蜂固体牛奶巧克力礼盒-固体牛奶巧克力大黄蜂设计铝箔包裹巧克力。

Fluid pattern is suitable for NMR porosity calibration in Berea sandstone as well as terrestrial sediment sand with little shale content and well sorted. Ceramics reference material is applied to shaly sand with average sorted. Both fluid pattern and solid ceramics material are not suitable for calibration in sandstone sample with high clay content, complex lithology with rich paramagnetic materials.

流体标样适合于贝瑞砂岩、陆相沉积分选好、泥质含量低的砂岩NMR孔隙度的标定;固体陶瓷标样适合于分选中等的泥质砂岩NMR孔隙度的标定;对粘土含量高的砂岩、含顺磁性物质的砂岩和砾岩等复杂岩性岩样,用流体标样和固体陶瓷标样标定都得不到准确的NMR孔隙度值。

This paper discussed the determination method of solid decompound enthalpy with oxygen bomb calorimeter. After the solid sample and standard substance were accurately quantified and uniform mixed, and the pressed piece was put into the oxygen bomb and combustion.

探讨了利用氧弹量热计测定固体物质分解焓的方法,准确称取一定量的固体样品和基准物质,均匀混合后压片,放入氧弹量热计燃烧,记录燃烧前后时间和氧弹量热计温度变化数据。

The glucose-type calf milk replacer is fed to a newborn calf that has been fed with colostrum milk until the calf is fed on solid feed instead of liquid feed. The starch-type calf milk replacer is fed to calf of 30 days old until the calf is fed on solid feed instead of liquid feed.

葡萄糖型犊牛代乳品可以在初生犊牛饲喂初乳后使用,直到犊牛由液体饲料转为固体饲料;淀粉型犊牛代乳品可以从犊牛30日龄开始使用,直到犊牛由液体饲料转为固体饲料。

It is difficult to select the lactic acid high-producing strain by observing the color change zone because of spreading grow along the solid medium of Rhizopus oryzae. A serious of methods for selection and breeding of L-lactic acid high-producing mutant were developed.

米根霉在固体平板上生成的乳酸会使培养基中加入的pH指示剂变色,在菌落周围呈现出变色圈,但由于丝状真菌米根霉在固体培养基表面蔓延生长的特性,使得无法得到单菌落,进而无法通过观察变色圈与菌落直径之比来比较出各菌株产酸能力的高低。

In order to improve the nutrition level of cottonseed cake power and reduce the content of dissociate free gossypol,solid fermentation was adopt to research the influence factor of solid cottonseed cake fermentation such as Strains、carbon sources and original pH,quantity of inoculation,fermentation time,fermentation temperature.

摘 要:为了提高棉籽饼粉的营养水平及降低游离棉酚的含量,采用固体发酵法,对棉籽饼粉固体发酵的影响因素如:菌种、碳源、以及pH值、接种量、发酵时间、发酵温度进行了研究。

An experimental heat-transfer system as well as a data reduction procedure was established in this study on the basis of the fundamental theory of liquid crystal thermography with heating at the solid surface. The system was tested by using both the steady-state and the transient methods with single-step heating at the surface. Two problems considered in the test were the flow over a flat plat with an unheated starting length and a uniformly heated cylinder in the cross flow.

本研究基於对固体表面加热之液晶热像法的基本,建一套热传实验系统与据约化程序,并采用稳态实验方法与对固体表面单步级加热之暂态实验方法,以具有前端未加热长的平板,以及绕越长圆柱之横向进实验。

The phase equilibrium data of SBO-FAME-Methanol, SBO-FAEE-Ethanol and Glycerol-FAEE-Ethanol systems were measured. The results indicated that it involved two different stages: liquid-liquid-solid reaction stage and liquid-solid reaction stage. When the molar ratio of methanol to oil is 12:1 at 65℃, the turning point is at a 55% biodiesel yield. The liquid-liquid-solid reaction model was proposed based on the double-membranes theory. It indicated that the process is reaction and mass transfer controlled together at the first stage, and the second stage is reaction controlled. The predictions of the model are matched with the experimental results.In the end, the acid was extracted using methanol and ethanol from jatropha curcas l oil.

测定了生物柴油制备过程中的SBO-FAME-Methanol、SBO-FAEE-Ethanol、Glycerol-FAEE-Ethanol三组分相平衡数据,表明固体碱催化过程分为液-液-固和液-固两个反应阶段,在醇油摩尔比为12:1、65℃的初始反应条件下,转化率达到55%时,为第一阶段向第二阶段的转折点;基于双膜理论建立了固体碱催化制备生物柴油的非均相液-液-固反应模型,表明两个反应阶段分别为传质、反应共同控制和反应控制,模型计算值与实验值吻合较好。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。