查询词典 cationic

The synthesis and application of the new cationic styrene-acrylic easter co-polymer micro-emulsion was studied in lab and in pilot plant.

研究了阳离子SAE微乳液的合成及应用。

In the current study, a series of cationic α-helical peptides of 20 a.a. were designed and synthesized based on four structural parameters, including charge, polar angle, hydrophobicity, and hydrophobic moment. Several methods were performed to describe the influence of these parameters on the antimicrobial and hemolytic activity, and on the permeabilizing effect on model membranes. The potential of these parameters to increase the antibacterial activity and to improve the prokaryotic selectivity is assessed.

本实验利用自行设计合成的人工抗菌胜肽当模型，固定长度为 20 个胺基酸，改变其电荷、极性角度、疏水性及疏水性矩等四种结构特性，并利用其对各种不同病原菌之抗菌活性及对兔子红血球细胞的溶血活性来研究其结构特性的改变对其抗菌活性、选择性及微脂体膜的渗透性之影响，以期望改变结构参数能增加抗菌活性及对原核的选择性。

By examining RLS spectral features of four systems including Al3+-DNA, azoviolet-cationic surfactants, fast red VR-proteins, ponceau G-proteins in this thesis, and proved that the instrumental conditions of spectrofluorometer have strong effect on the shape of resonance light scattering spectra.

本文在讨论Al~(3+)-DNA、镁试剂Ⅰ阳离子表面活性剂、固红VR-蛋白质、丽春红G-蛋白质四个体系的RLS光谱特征的基础上，证明荧光分光光度计的仪器条件和样品的分子吸收等因素会影响共振光散射光谱的形状，降低检测的灵敏度。

Results showed that the hybrid monomer could photopolymerize effectively and both free radical and cationic polymerization processes were improved. When 2-Hydroxy-2-methyl-1-phenyl-1-propanone (1173) was introduced into hybrid system containing UVI-6976, the final conversion of propenyl ether double bond and polymerization rate increased obviously. The comparison of photopolymerization kinetics between hybrid and blend system was investigated as well.

结果表明，以硫鎓盐为光引发剂时，这三种杂化单体均可以有效进行杂化光聚合反应，丙烯基醚和丙烯酸酯双键都显示出较快的反应速度和较高的最终转化率，同时在简单结构的硫鎓盐（UVI-6976）引发体系中加入自由基引发剂2-羟基-2-甲基-1-苯基-1-丙酮（1173）后，丙烯基醚双键的阳离子聚合速率和最终转化率都有了很大提高。

Methods: cationic liposome lipofectamine2000 was used to transfect retrovirus vector pbabe pten puro containing pten and pbabe puro into pten deficient prostate cancer cell line pc 3 respectively, and then cell growth, adhesion, segregation, apoptosis, cell cycle and ultrastructure alteration in vitro were studied.

利用阳离子脂质体lipofectamine 2000介导，分别将含pten的逆转录病毒载体pbabe pten puro及空载体pbabe puro转入pc 3细胞，观察转染前后细胞的生长、粘附、超微结构、细胞周期改变情况。

Finally, we selected Gemini surfactant GNP, GTB and trimeric surfactant TNP to be used as emulsifier to achieve cationic slow breaking and quick-setting bituminous emulsion.

与结构类同的传统型乳化剂相比，Gemini表面活性剂GNP和GTB以及三聚体阳离子表面活性剂TNP具有更高表面活性和较强的荷电强度，因而更适用于慢裂快凝乳化沥青稀浆封层道路施工技术，其表面活性剂的结构对稀浆封层沥青乳液与矿料的拌和时间有重要影响，其拌和时间由长到短依次为：TNP＞GTB＞GNP。

In this paper, CHPTAC as a cationic agent was used to modify ramie fiber.

本文CHPTAC作为一种阳离子剂用来修改苎麻纤维。

The application characteristics of the cationic dispersed rosin size made in lab in neutral papermaking system are studied.

研究了一种实验室自制的阳离子分散松香胶在中性抄纸条件下的应用特点。

By disrupting the impermeability of the sarcolemma, extracellular cations and fluid flow down the electrochemical gradient into sarcoplasm, overwhelming the capacity of the cationic extrusion pumps14–18 and leading to swelling of the myocytes.

肌纤维膜的不渗透性被破坏，细胞外阳离子与液体向肌浆流入，超过阳离子的泵出能力，导致肌细胞水肿。

The method can be used in the determine of cationic surfactants of the survey of living water, sewage farm import-exit water.

方法能用于生活用水、污水处理厂进出口水中阳离子表面活性剂的测定。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。