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In order to meet the needs of the practical industry, the property of ammonium phosphate and the effect of sodium humate on the habitude of slurry was investigated firstly by experiments:the relation between neutralization value of the slurry and the pH value, the relation between the boiling point and the density, water content and viscosity of slurry;the influence of sodium humate added into slurry on the relation between the neutralizing value and pH value, and on the density, water content and viscosity of the slurry.

为了工业的实际需要，通过实验，首先研究了磷铵料浆的性质以及腐殖酸钠对料浆性质的影响：料浆中和度与其PH 值的关系，料浆沸(来源：AB427242C论文网www.abclunwen.com)点温度与其密度、含水量及粘度的关系；添加腐殖酸钠对料浆中和度与其PH 值之间关系的影响，以及对料浆密度、含水量及粘度的影响。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

According to those limitations, this study would like to use the molecular biology method to enumerate the nitrobacteria in the sample fast and precisely. We use fluorescent in situ hybridization method.

基於上述原因，本研究希望以分子生物学的方法快速且精确的计数样本中硝化菌的数量，所采用的方式为原位萤光杂合法（FISH； Fluorescent In Situ Hybridization），针对铵氧化菌与亚硝酸氧化菌的16S rDNA设计一段专一性的探针。

The glutamine synthetase produced by the engineering bacteria can specially act on NH4 and aminoglutaric acid, the durability to the high concentration ammonium ion has been distinctively improved because of the dissolution of adenosine acylation modification, the major bottleneck of glutamine with enzymatical production has been solved, and the concentration of the obtained glutamine can reach 47.6g/L.

本发明工程菌产的谷氨酰胺合成酶可专一性的作用于NH 4 和谷氨酸，且因解除了腺苷酰化修饰作用对高浓度铵离子的耐受能力显著提高，解决了酶法生产谷氨酰胺的重要瓶颈，生成的谷氨酰胺的浓度最高达到47.6g/L。

The total amount of Mg and Fe ions in the equilibrium solution depends on the solubility of resulting double salts. The reaction speed is decided by the speeds of ionization of ammonia salts and brucite together.

平衡溶液中镁、铁离子的总量取决于生成复盐的溶解度，反应的速度是由铵盐电离的速度和水镁石电离的速度共同决定的。

Effect of different surfactants on the UV intensity of Al(superscript 3+)-MXFX have been studied. Is Cetyl Trimethy-lammonium Bromide can increase the UV intensity of Al(superscript 3+)-MXFX is discovered. Based on this reaction, the reaction conditions in detail and proposed a simple, rapid and sensitive new method for the determination of MXFX by UV method is inve stigated. This method has been applied for the determination of MXFX in tablet with satisfactory results.

通过研究不同表面活性剂对Al(上标 3+)-莫西沙星体系紫外特性的影响，发现十六烷基三甲基溴化铵对该体系有显著的增敏作用；系统研究了CTMAB-Al(上标 3+)-MXFX反应体系的紫外特性，利用这一反应体系，建立了简单、快速、灵敏的测定莫西沙星的紫外分光光度法，选择了最佳实验条件，并将此方法用于莫西沙星片剂的测定，结果满意。

The invention is characterized in that the molecule of the polymer adsorption material has a structure in formula I: in the formula, R is selected from the natural polysaccharides with amino groups and hydroxyls and the derivatives thereof or the chemosynthetic polymers, the molecular weight of which is from 6 KD to 500 KD; X is selected from a C0 to C6 paraffinic chain with O atoms, N atoms or OH groups; R1, R2 and R3 are selected from a C1 to C4 alkyl group.

生物医学材料领域中的水溶性阳离子多聚物吸附材料及其应用，包括采用带有氨基或羟基的天然多糖及其衍生物或者化学合成多聚物季铵化反应合成，其特征在于该多聚物吸附材料分子具有式的结构：式中，R选自粘均分子量范围为6KD～500KD的带有氨基或羟基的天然多糖及其衍生物或者化学合成多聚物；X选自含有O原子、N原子或者OH基团的C 0 ～C 6 烷链；R 1 、R 2 、R 3 选自C 1 ～C 4 的烷基。

ABSTRACT Inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles whose inhibition is caused by chemical adsorption and quaternary ammonium salts whose inhibition is caused by physical adsorption are mainly studied from microscope through quantum chemistry calculation, and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by making use of model-constructing thought of grey theory in this paper.

本文主要通过量子化学计算，从微观角度研究了化学吸附型缓蚀剂苯腈类化合物和物理吸附型缓蚀剂季铵盐在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系；并运用灰色理论建模思想，研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。其中，通过量子化学计算，从微观角度研究物理吸附型缓蚀剂在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系，是在尝试着进行；而运用灰色理论建模思想，研究缓蚀剂缓蚀性能与分子结构的关系，是一项具有尝试性和开拓性的工作。

The preparation process includes the following steps: mixing 10 mM concentration water solution of chloropalladic acid and 12.5-25 mM concentration water solution of ammonium hexadecyl trimethyl bride in the volume ratio of 1 to 20, heating to 65-95 deg.c, adding 100 mM concentration water solution of ascorbic acid in the volume ratio to the water solution of chloropalladic acid of 0.16 to 1 to react for 30 min, centrifugal separation to collect precipitate, water washing, and drying to obtain cuboidal nanometer Pd material.

该钯纳米长方体材料的制备方法的步骤和条件法如下：把体积比为1∶20的10mM氯钯酸水溶液和12.5-25mM十六烷基三甲基溴化铵水溶液混合，加热至65-95℃，然后加入与10mM氯钯酸水溶液的体积比为0.16∶1的100mM抗坏血酸水溶液，反应30分钟，将溶液离心分离，收集到的沉淀用水洗涤，干燥，得到钯纳米长方体。

The binding capacities of the water-soluble chitosan and its derivatives to taurocholate and glycocholate as bile salts were investigated in vitro.

修饰后的壳聚糖结合胆酸盐的能力增强，说明引入更多的胺基或铵基有利于对胆酸盐的结合，胺基上烷基与胆酸盐的甾环之间也应当产生疏水相互作用；同样我们在体外也研究了水溶性壳聚糖及其衍生物对硬脂酸钠和十二烷基硫酸钠的结合能力及其影响因素。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。