查询词典 dicarboxylic acid

In chapter I, We study that the catalysis of Al~(3+) on the reduction of Cr~(6+) by citrate acid, tartaric acid, oxalate acid, butyric acid, laetrile acid and malic acid at different temperatures and pH.

本论文共分三部分：第一部分：在不同的温度和pH条件下，通过批式试验研究了Al~(3+)对柠檬酸、酒石酸、草酸、正丁酸、苦杏仁酸、苹果酸还原Cr~(6+)的催化作用。

Mouse monoclonal antibodies against salicylic acid was produced and characterized for the first time. The McAb S2-8F, were derived from an immunogen in which 5-aminosalicylic acid (5-ASA) was conjugated to KLH (hemocyanin from keyhole limpets) through its -NH〓 group. The antibody showed high specificity to SA and even more high specificity to 5-ASA (the cross-reaction is 144. 8％), but very little cross-reactivity with 5-sulfosalicylic acid (0.9％) and 4-aminosalicylic acid (0.3％). Other compounds structurally similar to SA, such as 4-hydroxybenzoic acid, 4-aminobenzoic acid and salicylaldoxime, were not found to exhibit any cross-reactivity.

以5-氨基水杨酸(5-aminosalicylic acid，5-ASA)的5位氨基为偶联位点，血蓝蛋白(hemocyanin from keyhole limpets，KLH)为载体合成了SA-NH-CH〓-NH-KLH，以此为免疫原免疫小鼠，利用杂交瘤融合技术得到三株可产生针对SA抗体的细胞株，并对其中编号为S2-8F的细胞株产生的单克隆抗体的特性进行了研究，发现它对SA和5-ASA具有高亲和力。

JNS sulfuric-acid-dew-point-resistance steel has been put into practical use in the construction of steel-covered chimneys of the following electric power-generating stations: Zou xian Power Plant （2 1000 MW）, Xiamen Songyu Power Plant （2 300 MW）, Fujian Nanpu Power Plant（2 300MW）,Shenzhen Power Plant （2 300MW）. Many experienced experts held discussions with designers at scene and reached a unanimous conclusion that "JNS sulfuric-acid-dew-point-corrosion -resistance steel " is more stable in terms of function, more convenient to weld and process and more safe to use than " past sulfuric-acid-dew-point-resistance steel". Reports from various laboratories demonstrate that "JNS sulfuric-acid-dew-point-corrosion -resistance steel " is more effective to resist acid corrosion than the former steel , and many exports predict after thorough study that this acid of steel have a life span longer than 30 years being used in de-sulfurized chimneys and it is much less expensive than titanium alloy clad plates and Peenguard, etc.

JNS耐硫酸露点腐蚀钢板在山东邹县发电厂（2 1000 MW）、江苏泰州发电厂（2 1000 MW）、上海外高桥发电厂（2 1000 MW）、山西漳山发电厂（2 600 MW）、厦门嵩屿发电厂（2 300 MW）、福建南埔发电厂（2 300MW）、河北怀安发电厂（2 300MW）、吉林通化热电厂（2 300MW）等众多工程的烟囱钢套筒工程中得到了实际应用，许多老专家会同设计人员一起现场论证，一致认为&JNS耐硫酸露点腐蚀钢板&比以往的&耐硫酸露点钢板&性能更稳定，焊接更方便，更容易加工，使用更安全，来自各实验室的报告显示，&JNS耐硫酸露点腐蚀钢板&的耐酸性能也超过了过去的&耐硫酸露点钢板&，很多专家经过充分论证后预言，该钢种在脱硫后的烟囱中连续使用可保证三十年以上，而且JNS钢板的价格也远远低于钛合金复合板、宾高德等，采用JNS耐硫酸露点腐蚀钢板，可为电厂节约巨大投资，具有良好的经济效益和社会效益。

Folic acid is Vitamin Bc made up of 2-amino-4-hydroxyl-6-methylpterin, para-amino benzoic acid and glutamic acid, transforming into tetrahydro-folic acid in the human body, the ones that participated in formatting amino acid and nucleic acid.

中文摘要：叶酸系由2-氨基-4-羟基-6-甲基蝶呤、对氨基苯甲酸及谷氨酸组成的水溶性B 族维生素，在人体内转化成四氢叶酸，参与氨基酸及核酸的合成。

The experiment mainly studied the choice of bauxite, the process of acid digestion and the sedimentation of acid digestion liquor and the way to Eliminated the iron from liquid aluminium Sulfate. The paper introduced the complexion of different bauxite in acid digestion. The influence of the concentration of acid, the proportion of acid to bauxite, the temperature. the pressure and the time of the rate of acid digestion were studied. The condition of the flocculation was also studied.

文中主要对铝土矿的选择、铝土矿的酸解过程、铝土矿酸解液的沉降、液体硫酸铝的除铁等主要生产工艺进行了详细的实验和讨论，论述了不同产地、品位的铝土矿对于酸溶法的适应情况；详细研究了酸的浓度、酸矿比、酸解温度、压力、时间对于铝土矿酸解率的影响，讨论了絮凝剂在铝土矿酸解体系中的使用效果；确定了经济有效的硫酸铝的除铁方法。

Oxalic acid loading substantially stimulated soil P release from A1 horizon, showing a linear relationship; but its effect on B horizon soil was relatively negligible, especially at low oxalic acid concentrations mmol L^(-1. Oxalate solutions 0.5~20.0 mmol L^(-1 oxalic acid adjusted to pH 5.16 with 10.0 mmol L^(-1) NaOH had a much higher (1.51~2.98 times) soil-P-release effect than oxalic acid solution the same in oxalate concentration. Therefore, the mechanism of oxalic acid/oxalate triggering release of soil phosphorus is assumed to be dominated by ligand-exchange or complexing reactions of oxalate anionC2O(superscript 2- subscript 4 but not simply acid-dissolving effect. The effect of oxalate anion on soil phosphorus release was found to be somewhat cumulative, i.e. the amount of P released was primarily controlled by the cumulative oxalate loading rate, relatively independent of the manner of oxalate addition (one-time or sequential).

结果表明，草酸能显著促进暗棕壤A层磷的释放，土壤磷溶出量随草酸溶液浓度升高而线性增加；但对B层土壤磷的释放效应相对较弱，草酸浓度低於5mmolL^(-1)时B层磷的释放不明显。pH5.16草酸钠溶液比相同浓度的草酸溶液具有更高的解磷效率，在设置二者浓度为0.5~20.0mmolL^(-1)时，前者的解磷量是后者的1.51~2.98倍，推断草酸盐溶液或凋落物淋洗液中草酸类物质促进暗棕壤磷释放的主要机理在於草酸阴离子C2O(上标 2-下标 4配位反应。

Polyesters are produced by a condensation reaction of a diol, such as ethylene glycol, with a dicarboxylic acid.

聚酯是由一缩合一二醇，例如乙二醇，以二元酸。

The functional groups which are placed at 4-position of pyridine-2,6-dicarboxylic acid can effect the electron cloud of the lanthanide complexes.

吡啶-2，6-二甲酸的4位取代官能团能影响配合物的电子云形状，配合物的荧光性能和电子能量传递密切相关。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; a selectivity control agent comprising at least one silicon containing compound containing at least one C1-10 alkoxy group bonded to a silicon atom, and one or more activity limiting agent compounds comprising one or more aliphatic or cycloaliphatic carboxylic acids; alkyl-, cycloalkyl- or alkyl-ester derivatives thereof; or inertly substituted derivatives of the foregoing.

一种用于丙烯聚合的催化剂组合物，所述催化剂组合物包括：一种或多种齐格勒-纳塔主催化剂组合物，该主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体；一种或多种包含铝的助催化剂；选择性控制剂，该选择性控制剂包括至少一种包含硅的化合物，该化合物包括至少一种与硅原子连接的C 1-10 烷氧基；和一种或多种活性限制剂化合物，该活性限制剂包括一种或多种脂族或脂环族的单或聚羧酸类、其烷基-、环烷基-或烷基-衍生物、或上述惰性取代的衍生物。

According to the weight percent, the copolymer composition comprises: 25 percent to 99 percent of the vinyl aromatic monomer; 0 percent to 30 percent of the en-unsaturated nitrile monomer; 1 percent to 50 percent ene dicarboxylic acid derivative monomer.

这种共聚组合物按重量百分比包含：25至99％的乙烯基芳香族单体；0至30％的烯属不饱和腈类单体；1至50％的烯属二元酸衍生物单体。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。