查询词典 acetic acid bacteria

After removing the catalyzer by dense muriatic acid, carbon nanotubes are reacted with mix acid (vitriol:nitric acid=3:1 vol./vol.). By comparing the surface image of gained carbon nanotubes under the different condition, the best mix acid oxidation temperature is fixed on 140°C and the reaction time is 30min. The soluble carbon nanotubes were prepared by decorating of octadecylamine on the surface of nanotubes. Three processes of grafting were investigated in this research.

对碳纳米管的热失重、差热分析结果表明，通过在一定温度下空气氧化可去除大部分碳颗粒；而浓盐酸浸泡可去除碳纳米管制备过程中残留的催化剂颗粒；对在不同条件下与硫酸和硝酸配制的混酸反应处理后得到的碳纳米管的表面形貌研究表明最佳混酸氧化条件为140℃氧化30min。

Like thionamic acid, alkyl benzene sulfonic acid, nonyl phenol oxygen ethylene ether, ethylene diamine four ethanoic acid two sodium, oxalic acid, deionized water and so on.

如氨基磺酸、烷基苯磺酸、壬基酚氧乙烯醚、乙二胺四乙酸二钠、草酸、去离子水等。

Treatment of niobic acid with nitric acid and phosphoric acid affected the catalytic activity in synthesis of methyl oleate from oleic acid and the methyl alcohol.

研究了处理的铌酸对制备油酸甲酯催化反应活性的影响，并对此酯化反应合成条件进行了考察。

A class superfine fragrant pressing peanut oil is rich in linoleic acid and oleic acid,coriander oil with rich of oleic acid is a condiment oil,and perilla seed oil is rich in α-linolenic acid.

浓香型压榨一级花生油富含油酸、亚油酸，香味浓郁；芫荽籽油富含油酸，香味独特，是良好的调味油；紫苏籽油富含亚麻酸。

Objective To extract ursolic acid and oleanolic acid from Rhododendron simsii Planch flowers by supersonic technology and develop a RP-HPLC method to determine the content of ursolic acid and oleanolic acid.

目的 结合超声技术提取不同花色映山红花中熊果酸和齐墩果酸，建立RP-HPLC法测定其含量。

Results Eleven compounds were isolated and identified as:quercetin(1),kaempferol(2),quercitrin(3),protocatechuic acid(4),gallic acid(5),protocatechuic acid ethyl ester(6),ethyl gallate(7),vanillic acid(8),1,5,7-trihydroxyl-3methylan...

结果得到11个化合物，分别鉴定为：槲皮素(1)、山柰酚(2)、槲皮苷(3)、原儿茶酸(4)、没食子酸(5)、原儿茶酸乙酯(6)、没食子酸乙酯(7)、香草酸(8)、1，5，7-三羟基-3-甲基蒽醌(9)、琥珀酸(10)、5-羟甲基糠醛(11)。结论化合物6、7、9、11为首次从该属植物中分离得到。

KCR and HCD are erucic acid synthesis genes. In order to reveal the relationship between the synthesis of erusic acid and the quantitative expression of its functional genes, and to reveal the theoretic base of the breeding for high erucic acid content, the expression of KCR and HCD had been analyzed kinetically and quantitatively by using regular reverse transcription polymerase chain reaction and the internal standards of QuantumRNA18S during the growing period of high erucic acid content lines of Brassica Juncea.

研究应用常规RT-PCR(Reverse transcription polymerase chain reaction)的技术和QuantumRNA18S内标对芥菜型高芥酸油菜生育期内芥酸合成基因KCR、HCD基因的表达进行量化分析，了解芥酸的合成与功能基因量化表达的关系，为芥菜型油菜的高芥酸品种的选育提供理论依据。

The proportion of essential amino acid, sapor amino acid and drug-effective amino acid in total amino acid are 40.3247%, 22.2439% and 77.5609% separately.

氨基酸分析显示黑麦草叶蛋白中人体必需氨基酸、鲜味氨基酸和药效氨基酸分别占总氨基酸的40.3247%、22.2439%和77.5609%。

By means of essencial amino acid index and animal growth experiments, using the amino acid composition of the muscle in black sea bream juvenile as standard EAA requirement model for fish feed, The effects of nine different formulae of feed protein sources were compared. The amino acid balance and the nutritional value of the protein sources in feed for the juvenile of black sea bream were studied. Two formulae of protein sources were selected to be most effective, It suggests EAAI be an effective and simple assessment standard in studies on valuation of amino acid balance in protein sources of fish feed.

以黑鲷劫鱼肌肉的氨基酸组成作为幼鱼饲料中必需氨基酸需要量的标准模式，通过必须氨基酸指数和生物饲养试验结果相结合，对黑鲷幼鱼的9种不同蛋白源配比的饲料进行了比较研究，对黑鲷幼鱼配合饲料中氨基酸平衡和蛋白质营养价值进行了评估，筛选出2个高效饲科蛋白源配方；表明EAAI是鱼用饲料蛋白质营养价值评估和氨基酸平衡研究的一种简便有效的评价指标。

Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.

主要从事精细化工，贵金属化学试剂，硝酸银，氯金酸，氰化亚金钾，亚硫酸金盐，分子银浆，银粉，工业无水乙醇，化学试剂硫酸，盐酸，硝酸，无水乙醇，95%乙醇等电子和化学试剂产品研究与生产。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。