极性

Non-doped red-emitting electrofluorescent single-layer organic light-emitting devices based on an ambipolar small molecule, 4, 9-bis 4-(2, 2-diphenylvinyl phenyl naphtho[2, 3-c][1, 2, 5] thiadiazole, were studied.

以双极性小分子4， 9-二（4-（2， 2-二苯乙烯基）苯基）萘并[2， 3-c][1， 2， 5]噻二唑为发光层，制备得到了单层非掺杂红色荧光有机发光二极管。

Derivatives of Naphtol AS as the second coupling component were used in mixed coupling and the effect of its added amount on the colour strength,hue,flowability and dispersing extentof pigments was studied.

对含有极性基团(—COOH，— SO3 H)的色酚 AS衍生物的合成及其反应的影响因素进行了研究；合成了 4种新的色酚 AS苯环 3或 4上含有— COOH或— SO3 H基团的衍生物；利用该类衍生物作为第二偶合组分，采用混合偶合工艺对颜料红 57∶ 1进行改性研究，研究了其添加量对改性颜料的着色力、色光、流动性以及在水介质中的分散性的影

The magnetite with a mean diameter of 8nm was prepared by chemical coprecipitation methods. By the addition of nonionized oleic acid to the suspension of magnetite in solution during precipitation, the magnetite nanoparticles were coated with a double surfactant layer. A gel-like precipitated precursor is then formed because of the hydrophobic interaction among those coated units. By transferring of this precursor to an organic solvent, the surfactant double layer on Fe〓O〓 nanoparticles reduces to one; however, it still remains as a double layer by transferring to an alkaline aqueous solution. Both these cases give in stable colloids of superparamagnetic Fe〓O〓 nanoparticles.

从解决无机磁性Fe〓O〓颗粒与有机烯类单体的相容性入手，采用化学共沉淀法，制备了平均直径为8nm的超顺磁性Fe〓O〓颗粒，在制备过程中以非离子形式引入油酸，在Fe〓O〓颗粒表面形成一个具有双层结构的疏水外壳，并通过疏水相互作用凝聚成磁性Fe〓O〓凝胶，能够以单分子层结构形式溶解在非极性溶剂中，也能够以双分子层结构形式溶解在碱性水溶液中，形成稳定的超顺磁性Fe〓O〓溶胶。

In polarity, one will experience some life expressions in the physical, and some in the nonphysical.

极性中，你将在物质中体验一些生命表达，而一些在非物质中。

This article states and briefly analyzes some unknown characteristics of the economic effects of education, such as unequal effects, bi-polarity, occasionality, fluctuation, multi-phenomena, phases and float.

根据十多年来在 2 3个省市进行的教育与社会调查，结合教育经济学理论分析，本文提出教育对经济产生作用的不等效性、两极性、或然性、波动性、多象性、位相性、漂移性等尚未为人们所认识的特性，并加以简要分析

In this thesis, the relationship between the two mechanisms in the reactions of four coenzyme NADH models with two olefinic substrates is discussed in terms of Pross-Shaik treatment.

在我们所研究的反应中，电子转移机理—中间机理—极性机理，都能找到相应的实验证据。

Bipolar disorder may therefore give rise to rages in patients in either the depressive or the overexuberant phases of the disease.

两极性疾病在疾病的抑郁阶段或过度兴奋阶段都可能使病人产生狂怒。

Blue-light-emitting polyfluorene derivatives with bulky bipolar pendent groups at C-9 position has been synthesized. The combination of electron-deficient oxadiazole and electron-rich triphenylamine affords a highly efficient light-emitting material by improving charge injection and transport in electroluminescent device.

具有刚硬双极性侧链的高效率蓝光聚茀高分子材料已成功被合成，藉由在fluorene的9号碳位置导入了有利於传输电子的oxdiazole片段与利於传输电洞的triphenylamine片段所结合的TPAOXD，不仅增加电荷注入与传输能力，同时提高材料的热稳定性质(Tg： 186 oC)。

From FT-IR we think that the hydrogen bond between the polar oxygenous group on the thin film surface treated with plasma and acetone molecules would enlarge the distance between the carbon black particles, resulting in the addition of the electrical resistance, then the response behavior of the thin film to acetone was improved greatly.

我们通过FT-IR研究认为，等离子体处理后，薄膜表面引进的极性含氧基团与丙酮分子之间氢键的形成会增大炭黑粒子之间的距离，导致了薄膜电阻的极大增加，使薄膜对丙酮蒸气的响应得到很大改善。

They record not only the paleoclimatic and paleoenvironmental processes since the last interglacial, but also the configuration of magnetic field during polarity transition.

它们不但记录了第四纪特别是末次间冰期以来古环境的演变，而且也是研究极性转换期间地球磁场形态学的较好的陆相沉积物。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新