查询词典 PEI

Pei, the Chinese-born creator of such landmarks as the Louvre pyramid, the Bank of China tower in Hong Kong and the East Building of the National Gallery of Art in Washington, DC, the simple, stone-faced structure occupies an artificial island facing the palm-fringed corniche of Qatar's capital, Doha.

Pei 设计而成。它简单，石面结构，占据着人工海岛，面临卡塔尔首都多哈棕榈遮荫的峭壁滨海道路。

With the increase of temperature, the time needed for the complexation reaction to reach its equilibrium is shorter, and the corresponding equilibrium concentration of PEI-Co complex is higher.

分别在钴离子或PEI中亚胺基过量的情况下，研究了PEI与钴离子络合的初始速率与亚胺基或钴离子浓度的关系，发现PEI与钴离子的络合反应对钴离子和PEI中亚胺基均是一级反应。

The above method can be used as a general method of determining molecular weight distribution of polymers.4.Solid-state ~1H wide-line NMR and ~(31)p magic angle spinningNMR were applied to a series of PEI/DNA complex samples with different PEI molecular weights and nitrogen/phosphatemolar ratios,in order to disclose the influence of various structural factors on the interactions and morphology.The results of ~1H NMR spectra showed that the linewidth of the PEI signal was greatly broadened with increasing the N/P ratio.Meanwhile,in the ~(31)p M_AS experiment,the signal was found to shift upfield with the increase of the N/P ratio.Both ~1H and ~(31)P NMR experiments demonstrated that the interaction between two constituents and subsequently the morphology of the complexes vary with the N/P ratio.

首次将固体核磁共振应用到聚合物/DNA复合物体系，观察复合物体系中不同N/P比对其相互作用和相结构的影响，研究表明N/P比的变化对聚乙烯亚胺/DNA基因递送体系分子水平上相互作用有着很大的影响；另外，还发现不同分子量的聚乙烯亚胺聚合物载体在N/P比为3的情况下对复合物中DNA的微观尺度没有明显影响；通过氢的自旋扩散实验，首次测得在PEI/DNA复合物体系中DNA相尺寸的大小，并发现在体系中N/P比达到3以上的复合物中DNA和PEI达到了分子水平上的相容。

METHODS:AsOR was conjugated to PL by EDC; The active ester of PEG derivative was reacted with the amino groups in PEI to form PEG-PEI conjugate; DNA was first complexed with PEG-PEI and then with AsOR-PL. In vitro transfection experiment was conducted in the galactose receptor positive Huh-7 cells.

分别制备AsOR-PL偶合物及PEG-PEI偶合物，然后按照不同的比例先后与报告基因DNA形成复合物，再进行Huh-7细胞的体外转染试验和静脉给药后小鼠体内的表达试验。

In contrast to fungicidal activity of PEI alone, larger sized PEI resulted in a higher synergistic effect when combining with the conventional antimicrobial agents.

与单独作用的PEI相比，分子量较大的PEI与常规药物联合使用时可产生较强的协同作用。

The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

The nylon was activated with organic functional groups,and after that reacted with high-molecular-weight polyethyleniminein the organic soleent. PEI was grafted covalently on the surface of nylon. The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

摘 要：尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

In vitro time-killing studies, the combination of PEI-amphotericin B and PEI-fluconazole enhanced antifungal activity, but there was an antagonist for the combination of PEI-polymyxin B.

在体外致死研究实验中可以看到，PEI-两性霉素B和PEI-氟康唑结合物可以提高抑菌作用，但PEI-多黏菌素B结合物却拮抗抑菌作用。

In vitro time-killing studies, the combination of pei-amphotericin b and pei-fluconazole enhanced antifungal activity, but there was an antagonist for the combination of pei-polymyxin b.conclusionspei alone and in combination with amphotericin b and fluconazole displayed the high antifungal activity against candida albicans.

在体外致死研究实验中可以看到，pei-两性霉素b和pei-氟康唑结合物可以提高抑菌作用，但pei-多黏菌素b结合物却拮抗抑菌作用。结论 pei单独与联合使用均对白念珠菌产生很好的抗菌效果。

If you have another week, go all the way to the maritime provinces of Canada, i.e, New Brunsiwck, Nova Scotia, and PEI. If you can post travel experience of PEI, there will be several parties at Hua Hua getting very excited.

如果你有多一星期的时间，可以到加拿大东部沿岸的省份去，如新伯伦瑞克，新斯科细亚和爱德华王子岛，如果你可以PO上到PEI的旅游经验，一定有很多花花的花友会很兴奋的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。