极性

Two multifunctional agent, glycidyl methacrylate and refined ricinoleic acid , were adopted to modify EPDM in situ during compounding and vulcanization process. The effects of the modifiers on vulcanization behavior, processiability, different properties of the vulcanizates were investigated.

为此，选择了含有极性基团的多官能团小分子改性剂甲基丙烯酸缩水甘油酯和精制蓖麻油酸，在橡胶混炼和硫化过程中对EPDM进行原位改性，研究了原位反应技术对过氧化物硫化EPDM橡胶的反应特性、加工性能、力学性能、热性能、耐老化性能、耐屈挠疲劳性能及与金属的粘合强度等性能的影响，并探讨了其改性的机理。

The working principle of a novel short st roke linear DC motor wit h permanent magnet s is presented. Mixed digital - analog cont rol approach based on DSP ( TMS320L F2407A) is proposed. Displacement detecting and cont rol technique are discussed. Displacement detecting circuit s , digital - to - analog converter (DAC7641) expanded circuit s and cont rol software are given.

阐述了一种新研制的短行程永磁直流直线电机的工作原理，提出了基于DSP ( TMS320L F2407A)的短行程直流直线电机数、模混合伺服控制系统方案，重点对直线电机的位置检测及控制技术进行了研究，给出了DSP 控制器的位置检测接口电路、16 位双极性数模转换器(DAC7641)的扩展电路和控制软件的实现方法。

The insecticidal activities of the ethanol extracts and 5 kinds of extracts with petroleum ether, chloroform, ethyl acetate, n-butanol, aqueous from Rubia cordifolia L. against wolfberry aphis was investigated.

采用点滴法，测定了茜草乙醇提取物和石油醚、氯仿、乙酸乙酯、正丁醇和水5种不同极性萃取物对枸杞蚜虫的触杀活性。

In this study,sulfuric acid was added into woolscouring effluent with an aim to reduce the polarity and Zeta potential of suspended organic colloid,resulting in organic colloid to agglomerate and sedimentate.

洗毛废水是一种高浓度有机废水，含固率高，主要成分是羊毛脂、羧酸盐和土杂，由于强极性物质的存在和胶体强的负电性，导致洗毛废水形成稳定的乳化体系。

PMU extracts containing a mixture of conjugated oestrogen are obtained by means of solid phase extraction on semipolar adsorption resins.

从PMU中获得含有结合型雌激素混合物的提取物可以通过在半极性吸附树脂上的固相提取来进行。

The features of the SEPIC converter has the buck-boost operating mode, positive output polarity, low input current pulsation, and wide input voltage range, suitable for low-power wind generator system in power conversion.

本文研制一独型风发电系统之最大功追踪，所提的系统架构为 SEPIC 转换器，其转换器具备升压，正向输出极性，低脉动输入电，输入电压范围大之优点，适合应用在低功风发电系统电能转换。

And Mr Shaikh's past activities and responsibilities are not consistent with someone with learning difficulties and Bi-polar.

谢赫先生和过去的活动和责任，是不符合学习有困难和无极性的人。

It was demonstrated that the novel functional hyperbanched polyethylene could be prepared by the copolymerization of ethylene and polar comonomers protected by alkyl or aromatic silyl group.

研究表明，经烷基或芳基硅烷基团保护的极性单体与乙烯在MHNB催化作用下，通过共聚可以得到结构新颖的功能性超支化聚乙烯。

SOCE may play an important role in the process of cell polarity,and it may has well relationship with lipid raft in membrane.

SOCE在细胞极性化过程中可能起着重要的作用，而且这种作用可能与胞膜上脂筏结构存在密切的关系。

They can form aggregation with hydrophobic microdomain in the solution, which can solubilize non-polar substances.

在溶液中可以发生疏水缔合作用形成聚集体，从而产生疏水微区，能够增溶非极性有机物。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。