接触角

Through a series of orthogonal experiment, we summed up the optimal experimental parameters and the entire experiment is simple, low cost, with the possibility to create such coating with certain intensity (hardness above 6H) in large scale.

本实验采用一种有机/无机杂化的方法，改性水性环氧树脂乳液，制备出静态接触角在161°，滚动角小于5°，涂层硬度大于6H的一种超疏水表面。

The treating conditions are optimized according to orthogonal tests.

结果表明，在最佳的条件下，接触角可降低约30%。

Contact angle: The angle made by a drop of liquid with a solid at the point of intersection .

接触角：一滴液体和固体接触时所造成的角度。赤道和黄道的另一个相交点叫作秋分点。

The maximal fluorescence intensity of the ring is proportional to the content of quinidine sulfate.An SOR method for the determination of quinidine sulfate was established in the range of 0.2 ~1.4×10~(-12) mol,and the limit of detection(3σ) was 2.6×10~(-14)mol.

研究表明，只要满足液滴与表面的接触角不为零、液滴与表面的接触线被固定、溶剂能挥发等3个条件，固载表面上液滴中的溶质将在固载表面的接触线上聚集而形成一个自组装成环。

The SEM analysis shows the nano-size roughness on the plasma treated or chemical surface modified wool scales.Wenzel equation and Cassie and Baxter equation are used to illustrate the relationship between surface roughness and contact angle,then to reveal the reasons why surface modifications are able to impart an improved water repellence and oil repellence and stain resistance to wool.

SEM研究结果表明，经低温等离子体表面改性或特定化学改性后的羊毛鳞片表面呈现纳米尺度的沟槽和凹凸结构，应用Wenzel公式和Cassie and Baxter公式阐述了表面粗糙度与接触角的关系，揭示了羊毛表面改性对于提高拒水拒油整理效果的原因所在。

To understand the effect of structure of riblet surface on properties of wall, the apparent contact angle of riblet surface was measured and drag reducing effect of riblet surface was confirmed by water-tunnel experiment.

为了得到脊状结构对壁面物性的影响，对脊状表面进行了疏水性测试，获得了液滴在脊状表面上的表观接触角，并通过水洞试验验证了脊状表面的减阻效果。

To study the surface hydrophobicity of solid materials with the lattice Boltzmann method , the rough surface is approximately treated with simple periodic rectangular, saw-toothed and semicircular protrusions structure respectively. A two-phase lattice Boltzmann model is used to simulate the changes of surface hydrophobicity by calculating the contact angles of a droplet on rough surfaces.

将固体表面分别近似为具有简单的周期性矩形、三角形和半圆形微粗糙结构表面，建立两相流的晶格玻尔兹曼模型，通过测量不同微粗糙结构表面上液滴的接触角，探讨微结构形状和尺寸的改变对固体材料表面疏水性能的影响。

The standard angles of single sow angular contact ball bearings are 15°,25°,40°.

单列角接触球轴承的接触角分别为了15度、20度、40度三种。

And then, the general conditions during which the angle of solid liquid unequal to zero degree are derived and proved.

然后证明固液接触角不为零度时的一般情况，为测量依据公式提供一种新的证明方法。

A model to describe the motion of contact line and dynamic contact angle on rough solid surfaces was proposed.

提出一个粗糙表面上移动接触线和动态接触角的数理模型：毛细数较低时表观接触线前缘存在极薄的前驱膜，表观接触线在"湿"固体表面上移动，不同于传统模型中认为表观接触线在"干"固体表面上移动。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。