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In order to resolve the repeatability of contact angle measurement, the factors such as droplet volume, measure time, hydrophilic and hydrophobic targets were studied by using deionized water on glass and paraffin surface.

针对喷雾液滴在靶标上接触角测量的重现性不佳等问题,以玻璃和石蜡模拟靶标表面,研究了去离子水在亲水和疏水靶标表面上液滴体积和测量时间对接触角测量的影响,结果表明:液滴体积越大接触角越小,这种趋势在亲水表面比疏水表面上更突出,测量时体积可分别选择在0.5~1μl和1~5μl;液滴滴下30-50s后与固体表面基本达到平衡,对接触角测量的准确度影响较小。

Based on the parametric solutions of a Sylvester matrix equation, the parametric expressions of the gain matrices of synchronization dynamic observer in the nonlinear feedback chaotic systems are presented, in which the parameter vectors offer all the design degrees that can be selected to satisfy some performances, such as robustness.

基于Sylvester矩阵方程的参数化解,给出了非线性反馈混沌系统的同步动态观测器矩阵的所有参数化表达式,其所含参量为混沌系统控制设计提供了全部自由度,可适当选择自由参量满足某些鲁棒性指标。

Some improvement of genetic algorithm is presented. Fuzzy evaluation is applied to parataxis choosing genetic algorithm to get better solution which satisfied both integral demand and individual demand of object functions.

把多准则模糊优选理论应用于并列选择遗传算法,从而得到即满足整体的最优性,又尽可能的逼近各子目标最优值的非劣解。

In Chapter 4,The convergence of two forms of genetic algorithms base donthe feature of the non-formal selection strategies is proved including themodel of genetic algorithms under the population fitness constraints and somehigher fitness individuals in parent population participating in the comp-etition.

第四章以非形式化选择为特点,给出遗传算法的种群适应值约束下算法模型与父代种群前若干适应值高的个体参与竞争下遗传算法的收敛性。

Ordinary language, literariness or poeticalness, grammaticality and poeticality, grammar and rhetoric, and the structuring art of selection and combination.

文中谈到许多相关问题,包括:课程之实用或非实用、文学的语言或普通的语言、文学性或诗文性、语法与诗法、文法与修辞、选择与安排的艺术等。

When we conducted a chemical assay of the uropygial preen gland secretions, we found 4 times more volatile octadecanol, nonadecanol, and eicosanol in ratios in males than in females, making them putative male pheromone candidates.

在这篇文章中,研究人员选取全世界最为广泛的笼养鸟和模式实验鸟-虎皮鹦鹉作为实验对象,利用传统的双向选择和GC-MS分析方法,证明鸟类确实存在"性信息素的通讯"。

Once coupled at the filler interface the reactive Y component allows bonding to the polymer matrix by chemical reaction (grafting, addition, substitution) with active groups on the polymer and/or by physicochemical interactions. Y groups are selected to maximize compatibility with particular resin formulations.

一旦在填料界面发生上发生了偶联,反应性部分Y就会通过与聚合物上的活性基团的化学反应或者物理化学作用粘结到聚合物基体上。Y基团可以选择,以优化与特定树脂的相容性。

The image formation model is introduced,then a motion estimation algorithm is proposed,and total variation is chosen to regularize the ill-posed problem.

建立了超分辨率图像重建的数学模型,估计出场景在观测图像中的运动参数,选择总变分规整化克服问题的病态性得到重建结果。

First, an appropriate regularizer R is chosen to weaken the ill-condition of the normal equation based on TIKHONOV regularization method, according to the characteristics of the normal equation formed by DD phase observations of the single frequency GPS receivers.

在分析病态法矩阵结构特性的基础上,基于TIKHONOV正则化原理,提出一种选择正则化矩阵R的新方法,减弱法方程的病态性。

Fertile and sterile pools were set up by bulked segregant analysis based on the selection for the highly fertile and highly sterile plants of Shanyou 63 F_2 populaiton The AFLP analysis of the two pools indicated that 64 primer combinations amplified 3 477 stable and clear bands.

选择汕优63F_2的高可育株和高不育株分别建立 2个基因池,利用 AFLP标记技术对2 池间的多态性进行了研究。分析表明,64组引物在两池间全部扩增出了稳定、清晰的带纹,共计3 477条带。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。