查询词典 Koh-i-noor

A novel type of composite electrode based on multiwalled carbon nanotubes coated with sheet-like cobalt hydroxide particles was used in supercapacitors. Cobalt hydroxide cathodically deposited from Co(NO3)2 solution with carbon nanotubes as matrix exhibited large pseudo-capacitance of 322 F/g in 1 mol/L KOH.

采用电化学阴极沉积还原Co(NO3)2的方法制备了具有准电容特性的氧化钴电极材料，其比容量达到280 F／g，采用CNTs作为电极基体，在其表面均匀的沉积了纳米钴化镍颗粒并由此制备了氧化钴碳纳米管复合电极材料。

The lignan secoisolariciresinol diglucoside is a bioactive molecule effective on anticancer, antivirus and antioxidation. A simple and direct method for SDG qualitative analysis was established with TLC.

建立了定性分析亚麻籽饼粕中开环异落叶松树脂酚二葡萄糖苷的TLC方法，根据TLC结果，确定提取溶剂为0.1 mol KOH溶于1 L70%乙醇，固液比为1：8，提取2次。

It is found that the higher temperature is very favorable for the in-situ electrosynthesis of K_2FeO_4 and it is stable very much under this condition.

实验发现，较高的温度对于在KOH中直接电合成固态K_2FeO_4非常有利，而且该条件下固态K_2FeO_4比较稳定。

In the fourth chapter, the effects of ultrasound on the direct electrosynthesis of solid K_2FeO_4 and the anodic behaviors of pure iron were investigated, and the physical properties of the samples were characterized by means of XRD, FTIR and SEM.

在第四章中，对超声波在14 mol／dm~3 KOH溶液中辅助直接电合成K_2FeO_4固体的影响作了研究，并采用扫描电子显微镜、X-射线衍射和傅立叶红外吸收光谱等技术对超声波作用和无超声波作用直接电合成的K_2FeO_4的表面形貌和结构进行了表征。

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。

It is found that UIFR with softening point of 90℃, OH value of 32mg KOH/g andM of 377 g/mol is synthesized when molar ratio of isobutyraldehyde to formaldehyde is 1.5, molar ratio of aldehyde to urea is 6, vacuum distillation temperature and time is 140℃ and 1 h respectively. The terpolycondensate is soluble in most solvents, of paints and exhibits excellent yellowing-resistance.

结果表明，在异丁醛、甲醛摩尔比为1.5，醛、脲摩尔比为6，真空蒸馏温度为140℃、时间为1h的条件下，合成出的UIFR软化点为90℃，羟基值为32mgKOH/g，M为377g/mol，且树脂具有良好的溶解性和杭黄变性。

The optimal technological parameters of oil transesterification from Kosteletzkya virginica oil should be as follows: the rate of rotation 1800r.min-1, catalyst dosage 0.6%, mole ratio of methanol to Kosteletzkya virginica oil 6/1,reaction time 60min and reaction temperature 65℃, and under such conditions, the total oil transesterification ratio after transesterification three times is 97.8%.

海滨锦葵油制备生物柴油的最佳工艺参数为：搅拌强度为1800r.min-1，催化剂KOH用量为海滨锦葵油质量的1%，醇油摩尔比6/1，反应时间60min，反应温度65℃，在该工艺条件下，酯交换反应三次，酯交换率达到97.8%。

For the first time, enantiomers of C2-symmetric 1,1 -spirobiindane-7,7'-diol were resolved with crude menthyl chloroformate by phase-transfer catalysis in the presence of tetrabutylammonium bromide. The reaction was carried out at 0℃-rt. The diastereomers of SPINOL bis-menthyl carbonate can be separated by simple crystallization using alcohol. The hydrolysis of the diastereomers was carried out via aqueous NaOH/EtOH solution.

首次通过相转移催化的方法对螺双二氢茚二酚进行了有效的拆分，用L--氯甲酸薄荷醇酯做拆分剂，以四丁基溴化铵为催化剂在0℃-室温下进行酯化反应生成非对映体衍生物，以乙醇作溶剂，通过重结晶的方法分离衍生物，在水-乙醇混合溶剂条件下，用强碱NaOH或KOH分别水解，制得相应的光学纯度大于99%ee的两个异构体SPINOL，其中总收率：--SPINOL，78.2%；--SPINOL，80.6%。

The declassification of EXCO minutes on 9.7.2009 shows that the BN state government under Tan Sri Dr Koh Tsu Koon were principally culpable for alienating their land twice to Koperasi Pegawai Kerajaan Pulau Pinang in EXCO meetings on 18.8.2004 and 8.6.2005 without consulting the residents.

一份解密的行政议会会议记录（2009年7月9日）显示丹斯里许子根领导的国阵州政府才是应该受到谴责的，他们分别在2004年8月18日及2005年6月8日的行政议员中，在没有咨询过村民的情况下，将土地贱卖给槟州公务员合作社。

We have presented a practical method for the preparation of propargylic alcohols from terminal alkynes and carbonyl compounds promoted by KOH in the presence of 18-crown-6,and subsequent efficient cyclizations of propargylic alcohols with 2-naphthol catalyzed by InCl_3·4H_2O under the solvent-free ball-milling conditions.Ball milling exhibits its superiority over the reported methods in the preparation of propargylic alcohols and naphthopyran derivatives.

采用机械研磨方法进行了连续的两步固相化学反应的研究：首先，在氢氧化钾和18-冠-6的作用下，端基炔和羰基化合物在机械研磨条件下反应可以高效地生成相应的炔醇化合物；其次，在四水合三氯化铟的催化作用下，生成的炔醇化合物和2-萘酚在机械研磨条件下环加成生成相应的萘并吡喃产物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。