二磷酸

However, fully consideration of special structure and physiological function of CRP is critical to investigate whether CRP provide protect effect or pathogenic effect in the progression of atherosclerosis. CRP is a member of pentrxins family, which consists of five identical, noncovalently associated 23-kDa protomers arranged symmetrically around a central pore with a 102 A external diameter. Each protomer has a recognition face with a phosphocholine binding site consisting of two coordinated calcium ions adjacent to a hydrophobic pocket. The opposite face of the pentamer is the effector face, where complement Clq binds and Fc receptors are presumed to bind. A cleft extends from the center of the protomer to the central pore of the pentamer. Both faces ofpentamer form a special bi-phase structure: one face is the ligand recognition phase, which can recognize apoptosis cells and enzyme modified low density lipoprotein in which PCh is exposed.

CRP是一种五聚体蛋白，外径为102 A，由5个相同的单体以非共价键结合，形成双面的环形结构，每个单体的配体识别位点或受体结合位点分别位于五聚体两个平面上，分别组成配体识别相和效应器相，从而构成特殊的二相性结构：一面为配体识别相，含有磷酸胆碱(phosphorycholine，PCh)结合位点，能够使CRP识别在病理条件下暴露出PCh的凋亡细胞、酶修饰低密度脂蛋白(enzyme modified low density lipoprotein，E-LDL)等。E-LDL是天然低密度脂蛋白(native Low density lipoprotein，N-LDL)在多种蛋白酶，如胰蛋白酶、神经氨酸酶、胆固醇酯酶等作用下的代谢产物，其主要特点是结构发生改变(N-LDL大小均匀，平均直径250±30 A，E-LDL大小差异极大，直径为100-2000 A)，暴露磷酸胆碱位点，能够被CRP识别；另一面为效应器相，能够与巨噬细胞、单核细胞表面受体FcγRⅡa结合，介导巨噬细胞、单核细胞识别及吞噬凋亡、坏死细胞作用。

Firstly, the relationships between electric conductivities of H3PO4-KH2PO4 solutions and temperature and molar ratio are studied.

一是研究了磷酸和磷酸二氢钾混合溶液的电导率随温度和摩尔比的变化情况。

The paper deals with the inositol hexaphosphate contents and fractionation of organic P from three kinds of organic manures and two kinds of paddy soils.

本文对三种有机肥料和二种土壤的肌醇六磷酸磷含量和有机磷进行了测定和分组，通过无菌溶液培养，比较了肌醇六磷酸磷与无机磷在等磷量的条件下对水稻的营养效果。

The effect of the concentration, pH of several ligands such as acetate, oxalate, tartrate and phosphate solution and their orders added on the adsorption and activity of BSA and acid phosphatase on yellow brown soil, latosol, kaolinite, goethite and -MnO2 was first systematically studied by using batch and FTIR methods after analyzed and studied the relative literature that reported in the world.

论文在分析总结了国内外有关研究的基础上，用批量法和傅立叶变换红外光谱法首次系统地研究了乙酸、草酸、酒石酸和磷酸几种配体的浓度、pH及加入顺序对牛血清白蛋白、酸性磷酸酶在黄棕壤、砖红壤、高岭石、针铁矿和二氧化锰表面的吸附行为及活性的影响，探讨了这些配体对蛋白吸附机理及二级结构的影响。

The effect of the concentration, pH of several ligands such as acetate, oxalate, tartrate and phosphate solution and their orders added on the adsorption and activity of BSA and acid phosphatase on yellow brown soil, latosol, kaolinite, goethite and δ-MnO〓 was first systematically studied by using batch and FTIR methods after analyzed and studied the relative literature that reported in the world. The impact of these ligands on the adsorption mechanism and secondary structure of protein was simultaneously engaged.

论文在分析总结了国内外有关研究的基础上，用批量法和傅立叶变换红外光谱法首次系统地研究了乙酸、草酸、酒石酸和磷酸几种配体的浓度、pH及加入顺序对牛血清白蛋白、酸性磷酸酶在黄棕壤、砖红壤、高岭石、针铁矿和二氧化锰表面的吸附行为及活性的影响，探讨了这些配体对蛋白吸附机理及二级结构的影响。

With increasing the concentration of the mixture of antimony oxide from 10 % to 20 %, the reaction time decreases from 90 min to about 30 min, but the optimized range of molar ratio of H3PO4 to antimony increases. The reaction temperature is not the main factor on particle size with the existence of H3PO4, the average particle size is c.a. 160nm without obviously variety in the temperature range from 60 °C to 90°C.

氧化锑混合物浓度从10%增加到20%时，反应达到平衡的时间从90min下降到30min左右，形成小粒径胶粒所需磷酸与锑摩尔比的最佳范围也随之上升；在稳定剂磷酸存在的条件下，温度不再是对胶体粒子粒径的主要影响因素，在60～90℃之间，形成的胶体五氧化二锑的粒径无明显变化，在160nm左右。

On the basis of investigating the developments of inorganic mesoporous material's syntheses and applications, mesostructured tin oxide, bismuth oxychloride, lead sulfide, bismuth sulfide, titanium phosphate and zinc phosphate were synthesized by Sol-Gel and hydrothermal techniques, employing the neutral surfactant organic amine and anion surfactant alkyl sulfonate as templates.

在对无机介孔材料的合成、应用等方面的发展现状进行了充分调研的基础上，本文运用溶胶一凝胶法、水热法等合成手段，选用中性表面活性剂有机伯胺和阴离子表面活性剂烷基磺酸盐为模板，制备了二氧化锡、氯氧化铋、硫化铅、硫化铋、磷酸钛、磷酸锌等无机介孔材料。

On the basis of investigating the developments of inorganic mesoporous material's syntheses and applications, mesostructured tin oxide, bismuth oxychloride, lead sulfide, bismuth sulfide, titanium phosphate and zinc phosphate were synthesized by Sol-Gel and hydrothermal techniques, employing the neutral surfactant organic amine and anion surfactant alkyl sulfonate as templates.

中文题名非硅基介孔材料的合成与表征副题名外文题名论文作者周书喜导师李健民学科专业物理化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数92页关键词介孔材料介孔分子筛馆藏号BSLW /2003 /O643.3 /50 在对无机介孔材料的合成、应用等方面的发展现状进行了充分调研的基础上，本文运用溶胶一凝胶法、水热法等合成手段，选用中性表面活性剂有机伯胺和阴离子表面活性剂烷基磺酸盐为模板，制备了二氧化锡、氯氧化铋、硫化铅、硫化铋、磷酸钛、磷酸锌等无机介孔材料。

Soluble comb-shaped polyether phosphate type polymer LPEP was obtained by polymerizing the phosphate macromolecular monomers with long side chain, which was prepared by reacting polyethylene glycol mono methyl ether and other compound with phosphoryl oxychloride.

来源：ABCd7论文网www.abclunwen.com对分子结构和合成工艺进一步改进，采用聚乙二醇单甲醚等与三氯氧磷反应合成了长链型磷酸酯大分子单体，聚合得到可溶性的梳状聚醚磷酸酯型聚合物LPEP。

With regard to the common type in, you typically add phosphoric acid, ammonium nitrate and ammonium dihydrogen phosphate, ammonium dichromate, citric acid and gum Arabic and other chemical components; alcohol fountain solution also includes ethanol or isopropanol.

差于普通型的润版液，凡是补充磷酸、硝酸铵、磷酸二氢铵、轻铬酸铵、柠檬酸和阿拉伯胶等化学组不合；酒精润版液还参加乙醇或异丙醇。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。