A model for estimating tip clearances in gas turbine engine transients

Contrasts and analyses of flow fields in turbine stage with different slotting types are made to investigate the impact of slot at rotor tip on the turbine efficiency and secondary flow loss.

本文对几种形式开槽的涡轮级流场进行了对比分析，分析了动叶顶部开槽对涡轮级效率和二次流损失的影响。

互联网摘选

The flow near the tip region and heat transfer characteristics of the blade was analyzed. Numerical results showed that the blade can be well protected by the air-cooled configurations.

对具有复杂冷却结构的原型空气冷却动叶进行了整体气热耦合计算，分析了叶片叶顶附近的流动和叶片的换热特性，表明原型气冷结构基本能够为该叶片提供较好的保护。

互联网摘选

Effects of squealer tips on blade aerodynamic performances and tip heat transfer in a gas turbine were investigated.

应用数值方法研究了燃气透平动叶顶部凹槽对动叶气动性能及叶顶传热的影响。

互联网摘选

Mechanical model for atomic force microscopy tip sliding on the surface of sample

原子力显微镜针尖在试样表面滑动的力学模型

互联网摘选

The aim of this dissertation is to make theoretical analysis and experimental research on the field emission current generated between tip and sample surface, analyzing the effect of fabrication parameters on the results of weak current during the process of dots and lines fabrication.

本课题对AFM电场诱导氧化加工中探针与样品之间产生的场发射电流进行了理论分析和实验研究，通过实验分析了加工参数对氧化点、氧化线加工过程中检测出的微弱电流的影响。

互联网摘选

And when the indenter tip touched the surface of the sample, the trend of the displacement values measured by the sensor would depart from that of the displacement values of indenter having no load.

而当压头尖与试样表面接触后，压头与试样之间将产生作用力，使电容测微仪的测量值偏离加载装置空载下的输出曲线趋势。

互联网摘选

Scratch process may be divided into three phases, i.e. a stylus tip indenting coating surface, the stylus tip slipping on coating surface and the stylus tip rising over coating surface.

划痕过程可以分为划针尖端压入涂层表面、划针在涂层表面上滑动和划针升高等三个阶段。

互联网摘选

In the measurement process the AFM feedback controller make the scanner move the sample along z-axis and keep the vdW force between the tip and sample surface constant.

在测量过程中，AFM反馈控制器控制扫描器沿z轴移动样本，保持针尖-样本表面间的vdW力恒定。

互联网摘选

Before the indenter tip touched the surface of the sample, the displacement value measured by a capacitive displacement sensor was the output of the loading mechanism without load.

在压头尖与试样表面接触前，由电容测微仪测得的位移值是加载装置空载下的输出值；

互联网摘选

When the operating force of interaction between AFM tip and the surface of liposome are beyond critical values, the liposomes rupture into bilayers.

当AFM的探针与脂质体表面相互作用力超过某临界值时，脂质体胞囊破裂，变成脂双层结构。

互联网摘选

Under offset load, the stresses around the crack tip and the surface deflection in the pavement with cracks have a great increase compared with that without cracks.

在偏荷载作用下，含表面裂缝的路面结构裂缝尖端的应力以及路表弯沉较无裂缝结构有很大的增长。

互联网摘选

The basic theories which include atomic forces between probe tip and sample surface and deformation of cantilever and so on are introduced; The design theory of AFM.

论文介绍了同AFM相关的基础理论，主要包括扫描探针与样品间原子力作用机理、微悬臂在原子力作用下的形变位移及其检测等；

互联网摘选

To prevent contamination of the ear drops, do not touch the applicator tip to any surface ( including the ear).

为防耳药污染，切勿将滴耳器头端触碰任何物体表面（包括耳朵）。

互联网摘选

Investigation of loaded crack tip on mica surface by atomic force microscopy

云母表面加载裂纹尖端的AFM研究

互联网摘选

After a number of same impacts, the length and the distance of crack tip to surface in ( 1.45% wt) Si steel are longer than those in 0.34% wt Si steel.

经相同冲击次数后，含145%Si钢的亚表面疲劳裂纹长度及裂纹尖端距表面深度均比含034%Si的钢长。

互联网摘选

In this paper, interaction between the tip and surface of the sample, including physical, geometrical, chemical processes, has been discussed.

探针对表面物理信息的检测是一个针尖与试样表面相互作用的过程，包含物理、几何关系，还包含表面微观化学作用及其它微观因素的影响。

互联网摘选

Study on a Damaging Phenomenon of AFM Tip on Surface of Collagen Layer

AFM针尖对胶原样品表面一种损伤现象的研究

互联网摘选

In this paper, the mathematical model for steady heat conduction of a circular shell casing is worked out and solved to obtain the formulae for its temperature distribution and fin efficiency at the tip surface and lateral surface. The dimensionless curves are also plotted for engineering calculation.

拟定薄壳圆套管稳态导热的数学模型，求解得出其端面和侧面的温度分布及肋效率计算公式，并绘制了无量纲曲线，供工程计算用。

互联网摘选

The results show that electrode degradation mechanism was basically caused by wear due to fracture of local welding between the electrode tip surface and zinc coated sheet steel happen at electrode surface and alloying between electrode and zinc on zinc coated steel during resistance spot welding zinc coated steel.

结果表明：点焊镀锌钢板时电极的失效机制主要是电极和镀锌板之间局部焊接的断裂发生在电极表面而导致的电极磨损以及电极和镀锌板表面的锌之间的合金化。

互联网摘选

The electric field intensity distribution over the tip surface was established through calculation with appropriate voltage boundary condition applied, and it was found that the electric field intensity was the strongest at the apex of the tip, and the field emission current was also the strongest there.

对模型的表面施加电压边界条件，计算得到尖锥表面电场强度分布，电场强度在尖锥顶点最强，场发射电流在此处也最强。

互联网摘选