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The magnitude of the dissociative adsorbate of methanol in alkaline media is smaller than that in acidic media.

碱性介质中甲醇解离吸附产物的数量比酸性介质的明显减少,对甲醇氧化的第一个氧化峰表现出更高的电催化活性。

After adsorbent was saturated by sulfur in adsorption, it can be regenerated with ultrasound, the optimum regeneration conditions are: methanol as regeneration agent, regeneration temperature 60℃ and LHSV of methanol 1.76h-1, methano dosage 100mL, amount of treated adsorbent 10g . Adsorbent was reused for three times, initial desulfurization efficiency is respectively 94.3%、94.3%、91.8%, the adsorbent has a good reappearance.

在超声波存在的条件下,以甲醇为再生剂,在再生温度为60℃、甲醇液态空速为1.76h-1、甲醇用量为100mL的实验条件下对10g动态吸附后饱和了的吸附剂进行再生,吸附剂经过三次再生后初始流出汽油的脱硫率分别达到94.3%、94.3%、91.8%,该吸附剂具有良好的再生性能。

Compared with the conventional catalyst, the complex catalyst improved methanol anodic oxidation activity by 46 percent. The reason that it deceases the activation energy for the methanol and its ramification electro-oxidation reaction was estimated to be its special complex Keggin structure.

测试表明该添加剂降低了甲醇及其电氧化中间产物转化的活化能,改善了电极内部的质子传输状况,对甲醇的电化学氧化过程具有明显的促进作用,该复合催化剂与常规的Pt-Ru/C催化剂相比,甲醇的阳极氧化电流提高了46%。

Compared with the control, the seedling heights, fresh root weights and total fresh weights in treatments of fermentation liquid and fermented shoots and leaves of Bahia grass were higher and heavier than in that of controls.

试验结果表明:新鲜百喜草茎叶中同时含有AM真菌生长促进物质和抑制物质,生长促进物质主要存在于0~25%的甲醇溶提物中,并以25%甲醇溶提物的生长促进作用最明显,生长抑制物质主要存在于 100%甲醇溶提物中。

The results showed that the solubility of Jatropha curcas L.seed oil in methanol increased at the presence of methyl esters,which could enhance mass transfer.Distribution coefficients of methanol between...

结果表明,脂肪酸甲酯的存在可有效提高麻疯树籽油在甲醇中的溶解度,因此可在一定程度上改善传质效果;甲醇在甲酯相和甘油相之间的分配系数受到温度和甘油含量的显著影响,在低温下可更为彻底地分离甘油副产物,并降低甲醇回收的能耗。

This advantage will increase demand from the result of the fuel cell, which is a complicated system for the lost of determinate mathematical model. The other advantage is that the development time of the DMFC controller can be tremendously decreased by using the RTW and Embedded Target C2000 tools of the MATLAB to generate the control code for the RCP controller. Meanwhile, in addition to implementing a TI emulation board F2808eZdsp to be the controller, an interfacing circuit, functioning to isolate electric connection and driving actuators between the board and OSS, is designed and fabricated in this research.

关於直接甲醇燃料电池,由於未见完整且可用於解析性控制器设计之直接甲醇燃料电池的动态模型,必然需要较复杂之控制系统,故本研究将结合MATLAB的控制器快速原型方法应用於直接甲醇燃料电池机电系统之控制,不仅具有控制器原型快速产生的优点,同时可以结合MATLAB中有关各式控制器设计的资源,设计出更优异的控制器。

After washing with 3 mL of water and 3 mL of water-methanol (v/v, 60:40), the flavonoid fraction was eluted with 3 mL of methanol, dried under nitrogen, and dissolved in 0.05 mL of methanol.

清洗后的3毫升水和3毫升水,甲醇(五/五, 60:40 ),黄酮分数洗脱3毫升的甲醇,干燥氮气,并溶解于0.05毫升的甲醇

In this article,the methanol plant of the Northwest of Sichuan Gas Production Division is used as an example to study the comprehensive utilization of the vent gas.

本文以川西北气矿甲醇厂为例对天然气制甲醇装置放空气的综合利用问题加以分析,对甲醇装置已实施放空气回收项目的技术改造进行了总结,并对其它放空气的回收利用提出技术改造方

Effective because it has a much greater affinity for alcohol dehydrogenase than methanol.

甲醇中毒最好的办法就是用酒精中和,因为乙醇比甲醇更易与人体内的脱氧酶的结合,阻止甲醇对人体的毒害。

The results showed: when TLC solvent system was: chloroform - methanol - diethyl amine = 90:9:1, alkaloids from lotus leaves were well isolated, and five components were isolated and identified by spraying Dragendorff reagent. The optimal conditions of HPLC solvent system were: methanol- water - diethyl amine = 75:25:0.0125. Under the conditions, components of alkaloids from lotus leaves were separated very well, and ideal RP-HPLC peaks were obtained.5、Methods of High Speed Counter Current Chromatography and preparative High Performance Liquid Chromatography applied to identify and purify alkaloids from lotus leaves were set up. When solvent system of HSCCC was: chloroform - methanol - water (pH=4.00)= 4:3:2, speed of chromatogram was 700rpm, flow speed of the mobile phase was 2mL/min, four pure components relatively were attained by isolation and purification.

结果表明:薄层层析溶剂系统为氯仿:甲醇:二乙胺=90:9:1,使荷叶中的生物碱达到了较好的分离效果,并用改良的碘化铋钾试剂喷雾显色,共分离鉴别出了5种荷叶生物碱;分析型HPLC分析检测的较优溶剂系统为甲醇:水:二乙胺=75:25:0.0125,使荷叶生物碱的各个组分达到了基线分离,并获得了较好的峰形。5、建立了高速逆流色谱和制备型HPLC技术分离纯化荷叶生物碱的具体方法。H(来源:ABC46论文网www.abclunwen.com)SCCC法在溶剂系统为氯仿:甲醇:pH4.00的水=4:3:2,色谱仪转速为700rpm,流动相流速为2mL/min的条件下,分离纯化得到了4个纯度较高的化合物。

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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。

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Its advantage is that it can be used in smaller units.

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