Human defensins,found in the blood,intestinal tract and epithelial cells,are small,cystin-rich cationic peptides with special structure.

人类防御素是一种存在于血液、肠道及表皮细胞中具有特殊空间结构,富含精氨酸的阳离子多。

Acids with different cation were distinguishingly different in activation energy and frequency factor distribution.

阳离子的种羧酸盐，活化能和频率因子分布却相差很大。

A process for decolourization of anionic dye containing wastewater by using waste plastics in the presence of cationic auxiliary and sodium dodecylbenzene sulfonate has been studied.

探讨了在阳离子助剂及十二烷基苯磺酸钠存在下,利用废旧塑料对阴离子染料的脱色工艺。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二酸与乙醇为原料成十三碳二酸二乙酯,考察了影响应的因素。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与乙醇应生成异菠基乙醚。

The cationic ring-opening polymerizations of epoxide based monomers were studied using tris(2-hydrooxyethyl) isocyanurate(THEIC) as initiator and trifluoroboron plus ether complex system as catalyst.

发现THEIC与环氧单体可在非均相体系中平稳地进行阳离子开环应。

The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.

在碳化过程中，苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。

Kroger, N., R. Deutzmann, and M. Sumper. "Polycationic peptides from diatom biosilica that direct silica nanosphere formation." Science 286, (1999): 1129-32.

硅藻生物硅中左右硅纳米超微粒组成之阳离子型〉《科学》286,(1999):1129-32.

The amine cake is an organic bentonite used as the rheological regulator for thickening oils,made from long-carbochain quaternary ammonium salt.

胺片是用长碳链季铵盐制备的有机膨润土,常用于油类增稠的流变性调节剂,而长碳链季铵盐是阳离子表面活性剂,具有润湿、吸附、乳化等作用。

Objective:To study the preparation of compound of Ion-exchange resins-Domiphen and the measure of max attach to resin.

制备苯乙烯系强酸型阳离子交换树脂度米芬复物,并测定度米芬最大吸附量。

The preparation and application of internal and external sulfonium cationic polymer since 1960s are summarized comprehensively in this paper.

较全面地综述了国内外自60年代以来叔锍阳离子物的制备与应用情况。

Our company also produces dyeing paste material, healthy food antiseptic SDA,kation guar gum,many kinds of additive,thickener and etc.

本公司时还生产印花糊料、绿色食品杀菌剂SDA、阳离子瓜尔胶、各类添加剂、增稠剂等产品。

For polysaccharide synthescs,ring open-ing polymerizatlon of 1,6-,1,4-,1,3-,and 1,2-anhydro sngars,and polycondensation of cya-noethylidene trityl ether sugars are described.

对多糖的成主要介绍了1，6-、1，4-、1，3-、1，2-缩水内醚糖的阳离子制备均多糖，及用糖原酸酯衍生物通过缩应制备多糖。

In the wash solution, these positively charged cationics adsorb to the negatively charged surface of fabrics.

在溶液中，这些带正电的阳离子吸附在表面带负离子的织物上，起到润滑作用。