Five different coating materials and four different toxic organic vapors ( methanol , 1 , 2 - dichloroethane , benzene and cyclohexane ) have been selected as detective model to examine the feasibility of this instrument 选择了5种不同极性的敏感膜和4种有毒气体（甲醇、 1 ， 2一二氯乙烷、苯、环己烷）作为模板检测物，考察了这个装置的实用性。
The second one is poplar wood ( 3 . 41 mj / m2 ) , and the chinese fir wood has the lowest polar free energy ( 0 . 74 mj / m2 ) . the result of the surface polar free energy has shown the hydrophilic adsorption of the wood surface 这一结果表明不同木材表面对极性的小分子物质（如水分子）有不同的吸附能力，其中马尾松木材表面对水分的亲和性较强。
Many initiates struggle with the issues of manifestation and abundance , and the above example shows one how integrating those parallel lives in full that experience the opposing polarity causes one to come to the middle road 许多提升者与显化和充裕的问题斗争，而上述例子显示了你怎么去充分整合那些体验着相反极性的平行生命，让你来到中道。
What had happened to your solar system during both the era of maldek and the current era is that it has experienced both extremes of either too little or too much struggle , which has brought forth a lack of evolution in both cases 在马尔戴克时代和当前时代两者之间，你们的太阳系所发生的事情是体验了极性的两端，一端有着太少的奋斗，一端有着太多的奋斗，每端中都展现了进化的缺乏。
By mixing with bioactive fillers , such as hydroxyapatite ( ha ) , a bony bond can be established on the interface between the composite material and the host bone . it is considered that a higher interfacial strength resulted from the chemical bonding can prevent the aseptic loosening 其表面的羟基容易导致彼此之间以氢键产生团聚； ha是一种极性的、亲水的物质，在弱极性的有机母相中，将产生二次团聚，很难用物理方法解聚。
Following are the main content of this thesis : the first part analyses the khatib artificial potential field model in which we take the goal points with mobile robots with the same polarity as the charge and the obstacles with the conversely polarity as the charge 论文的主要研究工作如下:首先,详细地介绍和分析了传统的khatib人工势场模型。该模型将目标点看作与移动机器人带有相反极性的电荷的带电体,障碍物看作与机器人带有相同极性的电荷的带电体。
Consequently , with increasing mmt content , the tensile strength and young ' s modulus of hdpe - g - aa / mmt nanocomposites increased , while that of hdpe / mmt composites decreased . moreover , the addition of mmt to hdpe - g - aa decreased the melting temperature and the degree of crystallization of the matrix . these changes may be attributed to high interfacial adhesion between hdpe - g - aa matrix and exfoliated clay , which reduces the mobility of crystallizable pe chain segments , and subsequently reduces the crystallization ability 研究结果表明： mmt在hdpe中不能达到纳米级分散，而在hdpe - g - aa中， mmt能以插层型利剥离型的结构存在，这主要是由于极性的丙烯酸接枝在hdpe上提高了后者的极性，而且能与mmt上的活性基团进行化学反应，从而提高了pe链进入mmt层间的可能性，使mmt在基体中达到纳米级分散。
One set of composition analysis method was erected for biomass gasification tar , in which tar samples are separated into aliphatics , aromatics , ester , polar and aspheltenes fractions of increased polarity by one kind of chromatography , and gc / ms is used for the characterization of each fraction except aspheltenes 层析将焦油样品分离为脂肪类、芳香类、酯类、极性物、沥青质五个不同极性的族分，然后再对各族分采用gc - ms分别进行定性和定量分析，并最终获得焦油的主要组成信息。
The mechanisms of laser - induced blood fluorescence spectra and the spectra deriving from the fluorophores on the erythrocyte membrane are presented . on the other hand , the lower intensity of the hemoglobin fluorescence spectra is due to the fluorescence quenching from resonance energy transfer between the fluorophores in hemoglobin with ambient 因此提出了激光诱导血细胞产生荧光光谱的机理；并提出激光诱导血液产生的荧光光谱主要是红细胞的贡献，其中对红细胞产生的荧光光谱作主要贡献的是其细胞膜上的色素基团、双极性的磷脂等生物大分子中的荧光团。
The general applications for spme are that fused silicate fibers were coated with various liquid polymeric coatings , such as polydimethylsiloxane ( pdms ) and polyacrylate ( pa ) . lately , other more specialized materials have been developed , including ion - exchange coatings , liquid crystalline films , carbowax and nafion coatings 后来又发展了一些有特点的涂层材料，如离子交换涂层、极性的nation全氟化树脂涂层、导电聚合物聚吡咯( ppy )和聚- n -苯基吡咯( pppy )等。
