查询词典 selectivity

A new technique is presented for maximizing the band-edge selectivity of elliptic filters, and then the equal ripple parameter of the quasi-elliptic function can be calculated when the band-edge selectivities of the elliptic function and quasi-elliptic function are the same.

提出了标准椭圆函数的边带优化方法，在此基础上使标准椭圆函数与修正后的准椭圆函数在边带上的衰减相等，得到准椭圆函数的等波纹系数。

The advertisement audience has the greatly strengthened selectivity and elusion to the media advertisement.

广告受众对媒介广告有极强的选择性和回避性。

Further, the influence of elution temperature and sample load on the selectivity of polymers was investigated in detail.

MIPs高度的底物选择性主要来源于MIPs中识别位点与模板分子在空间和功能基团上的匹配。

The influences of the composition of mobile phase, the flow rate, the temperature and the injected quantity on the enantiomer rententivity and selectivity were examined and discussed.

考察了流动相组成、流速、进样量和温度等因素对对映体分离的影响。

Chiral ligand-exchange chromatography is one of the basic chromatography method for enantiomer separation, in which chiral ligands and metal ions are two essential elements to determine the chiral selectivity.

手性配体交换色谱法是分离手性化合物的基本方法之一，其中手性配体和金属离子是决定手性化合物分离选择性的根本因素。

The results indicate that SPE has high activity and good selectivity of EG in hydration reaction of EO .

结果表明，磺化石油焦活性炭对环氧乙烷水合反应有很高的活性和乙二醇选择性。

After 10 times reuse, the selectivity of the ester was still 100%.

循环使用10次后，芳香酯的选择性仍为100%。

The results revealed that ethane and oxygen can react on catalysts with good reactivity and selectivity.

评价结果表明，临氧条件下，在四种铁基复合氧化物催化剂上的反应性能差别较大，这种反应性能上的不同是与催化剂本身结构和晶格氧的活泼性密切相关的。

In presence of this catalyst,ethanolamine reacted with alkali water at 140-170 ℃ and H2 pressure of 0.8-1.2 MPa.The conversion was over 98% and selectivity for glycine was higher than 95%.

实验结果表明：在温度140170 ℃，H2压力0.81.2 MPa，一乙醇胺与碱水催化反应，其转化率可达98%以上，甘氨酸的选择性高于95%。

Moreover, their activity and selectivity in etherification reaction is simultaneously estimated and compared.

此外，对这几种催化剂的醚化活性、选择性进行了评价。

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。