针尖

This phenomenon is called adsorbate induced faceting.

而这样的吸附诱发皱化可以在针尖上形成单原子针尖。

The evaporation fields of metal atoms in the STM configuration have been calculated on the base of the binding energy of the atom on the tip, the total ionization energy of the atom, surface work function, the atomic radius and tip-sample distance.

本文的理论计算表明所需的外加电场强度决定于针尖原子的结合能，原子总的离化能，表面功函数，原子直径以及针尖和样品间距等。

When the modification direction is along one of the base vector directions of the Si (111)-7×7 surface i.

针尖在样品表面的挖沟过程和布线过程都是重复可控的，针尖在样品表面的作用位置也是精确可控的。

However, if the distance between the tungstn tip and Al (100) surface is close enough, about 9 Bohr, the single Al atom under the tungsten tip can be extracted from the surface without any electrical field.

与半导体情形不同的是，在针尖与样品表面距离小于约9Bohr时，仅依靠针尖作用可以让Al原子自动脱离Al（100）表面。

And the preparing method has the steps of: fixing the charge transfer complex on a scanning tunnel microscope, starting up the cut mode of the scanning tunnel, controlling the motion of pointer of the scanning tunnel, applying a voltage pulse between the charge transfer complex and the pointer, writing the information hole array in the charge transfer complex.

按如下过程进行制备：将电荷转移复合物固定于扫描隧道显微镜上，启动扫描隧道显微镜的刻写模式，控制扫描隧道显微镜的针尖的运动，在电荷转移复合物和针尖之间施加电压脉冲，在电荷转移复合物上写入信息孔阵。

The process of dip pen lithography involves the adsorption of ink molecules on AFM tip ,the formation of water meniscus ,the transport of ink molecules ,and diffusion of ink molecules on the substrate .More factors such as temperature ,humidity ,tip ,scanning speed and so on will influence the process of dip pen lithography .

蘸水笔技术的刻蚀过程包括AFM 针尖对墨水分子的吸附、针尖与基底间弯月液桥的形成、墨水分子在液桥中的传输、墨水分子在基底的扩散等四个阶段，并受温度、湿度、针尖、扫描速度等多种因素的影响。

Great balls of the sharp needle about the diameter of the hemispheric body diameter of 50% for apparel sewing base.

针尖偏心的方向是以穿线的方向为基准（0°），从针柄看向针尖方向的切面有9 个型式。

After the normal degermation of acupoints,the points of double LI20 with needles of 1cun is punctured, directing the needles on double LI20 to nasion, even reforcing and reducing after developing needle sensation, and be sure to make needle sensation into nasal cavity;puncture DU23 with the needle of 1cun,directing the needle to forehead ,twirling and rotating until the generation of needle sensation;puncture perpendicularly double LI4 with the needle of 1.5 cun, reforcing and reducing after developing needle sensation, manipulating every 10 minutes;puncture perpendicularly double St36 with needle of 1.5cun,reforcing by lifting, thrusting ,twirling and rotating after developing needle sensation.

针取30号毫针。穴位常规消毒后，用1寸毫针针刺双迎香，针尖朝向鼻根部，得气后行平补平泻法，针感传达至鼻腔中；上星用1寸毫针针刺，针尖朝向前额部，快速捻转，以产生针感为度；以1.5寸毫针直刺双合谷，得气后行平补平泻法，以上三穴每10 min捻针一次，留针30min；以1.5寸毫针直刺足三里，得气后行提插捻转补法，留针30 min。

Multiwall carbon nanotubes attached on conventional AFM silicon tip using an optical microscope with two independent translation tables. Purified nanotubes are aligned on the conductive tape, and attached on the AFM tip.

首先将碳纳米管粘附在导电的胶带上，然后用涂胶的针尖与其接触将碳纳米管粘附到针尖上，最后运用电蚀的方法优化碳纳米管针尖的长度，以达到高分辨率的要求。

The conclusion is drawn from the simulations that the secondary electrons will go out from the sample surface more easily with the decrease of the half cone angle of tip and the increase of secondary electron energy, tip-sample separation and the distance of the emission site away from the point directly under the tip.

模拟的结果发现针尖半锥角越小、次级电子能量越高、针尖样品间距越大、次级电子出射位置离针尖正下方越远则越有利于次级电子的逸出，此外通过栅网与一个平行于样品表面的地电极的共同作用，会对次级电子产生聚焦作用。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。