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The experimental results showed that the existence of ultrasound could decrease the formation potential of ferrate and the passivation extent of iron anode, as well as O_2 evolution rate, which led to higher current efficiency for the direct electrosynthesis of solid ferrate at 65℃in 14 mol/dm~3 KOH solution.

通过对超声波对纯铁电极电化学行为影响的研究表明,超声波能加快电极表面上的固体K_2FeO_4向本体溶液中的转移和延缓电极表面的钝化,还能减慢O_2析出的速度,这可能就是超声波作用能够提高固体K_2FeO_4生成的电流效率的原因。

Their catalytic activities in the condensation reaction of cyclohexanone with ethanediol were studied.The results showed that the catalytic activity of SO_4~(2-)/ZrO_2-Ce_2O_3 in the condensation reaction ...

实验表明:(1)SO42-/ZrO2-Ce2O3在缩合反应中的催化活性比SO42-/ZrO2和SO42-/ZrO2要强;(2)引入适当数量的Ce2O3使得固体超强酸的酸强度增大;(3)当固体超强酸SO42-/ZrO2-Ce2O3的制备条件为焙烧温度550℃、焙烧时间4h、Ce2O3质量与ZrO2质量比2%时,酸对缩合反应的催化活性最高。

At the premise of modernization of Chinese traditional medicine formulation, we applied the technique of solid dispersion and prepared heterotype drop pellets using the self-made drop pellet machine and the mould.

在中药制剂现代化的发展前提下,本方的剂型设计将采用现代固体分散体技术,与滴丸一样都是将原料、辅料按不同比例制成固体分散物的药料后,制备而得,暂定名为异型滴丸。

Based on the concept of deformation energy, the settling velocity of spheroid in the muddy water with hyperconcentration is researched in this paper.

一、BlJ西固体颗粒在清水中的沉速,经过不少学者的长期研究已经取得了很多成果。但固体颗粒不总是在清水中沉降。

Compared to solvates and salts which are limited to small numbers of nontoxic solvents and ionizable drugs, cocrystals represent a very promising designable solid form of active pharmaceutical ingredients, due to their extensive species and wide application scope.

常见的固体形态如溶剂化物、盐,因为种类少或适用的药物少而在应用上受到一定的限制。所以种类多、适用范围广的共晶作为可设计的药物固体形态近年来逐渐受到关注。

The synthesis of eight compounds ( borneol ester and isoborneol ester) and other esters catalyzed by nanometer solid superacids were also researched. In addition, we still analyzed the distinction of esterification yield of borneol ester and isoborneol ester. The particle size, surface area, changes of profile and acidity of nanometer solid superacids were mensurated and analyzed by TEM, BET, XRD, IR and acid indicator.

对纳米固体超强酸催化合成系列正、异冰片酯及其它酯的反应作了一定的研究,论文分析了正、异冰片酯化反应的差异,并用TEM、BET、XRD、IR及酸标指示剂等方法和手段对纳米固体超强酸的粒度、比表而积、形貌变化及其酸性大小进行了分析和测定,通过IR、~1H NMR、~?

Supported solid bases and metal oxide catalysts were prepared successfully by isochoric impregnation and the co-precipitation method, and were used for synthesis of biodiesel from transesterification of rapeseed oil and methanol. The high active solid base catalysts: KF/Al2O3, ZnO/La2O3 and La2O3 were found in this paper.

本文用等体积浸渍法和共沉淀法制备了负载型和金属氧化物型固体碱催化剂,并应用于催化菜籽油与甲醇酯交换合成生物柴油的反应,筛选出了高活性的KF/Al2O3,ZnO/La2O3和La2O3三种固体碱催化剂。

The study on the constitutive relation of solid materials with special microstructures and behavior, one of which is martensitic transform...

具有特殊细微观结构和响应行为的固体材料本构关系研究是固体力学和材料科学关注的热点,马氏体相变材料的本构关系研究就是其中之一。

Based on linear elastic fracture theory, a damage evolution equation for composite soild propellant under uniaxial tension is derived. Main mecrosopic of material are determined through fittin the experiment data of constant rate tension. Then, the integrate constitutive equations found is close to microlevel.

基于线弹性断裂理论,提出了一个适合复合固体推进剂的脱湿微裂纹损伤发展方程,通过部分单向定速拉伸试验数据拟合确定其主要的细观参数,从而得到了复合固体推进剂在细观水平上完整且封闭的本构方程组。

Methyl α-naphthaleneacetate was synthesized by using α-naphthaleneacetic acid and methanol as raw materials and solid superacid TiO2/SO42- as a catalyst.

固体超强酸TiO2/SO42-为催化剂,研究了α-萘乙酸与甲醇的酯化反应,探讨了催化剂种类、用量及活化温度等反应条件,发现固体超强酸TiO2/SO42-对α-萘乙酸与甲醇的酯化反应具有较高的催化活性,并使后处理简化。

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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。