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柔软样品
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  soft sample
     Measurement of Height of Soft Sample Based on Atomic Force Microscopy
     基于原子力显微镜技术测量衬底表面柔软样品高度的方法研究
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  “柔软样品”译为未确定词的双语例句
     Tip pressure is essentially a result of the repulsive force between the tip and the substrate.
     这种压力实际上是样品原子和针尖原子间的排斥力,所以在AFM轻敲模式中测量柔软样品的高度存在一定问摘要题。
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  相似匹配句对
     Analysis of environmental samples
     环境样品分析
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     1. 2 Samples for parentage diagnosis: 5 cases of parentage diagnosis were obtained from Forensic Medicine School in China Medical University.
     1.样品来源
短句来源
     Measurement of Height of Soft Sample Based on Atomic Force Microscopy
     基于原子力显微镜技术测量衬底表面柔软样品高度的方法研究
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     Two Kinds of New Softening Agent
     新型纺织柔软整理剂
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     Preparation of Flexible Sericin Film
     柔软丝胶蛋白膜的制备
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  soft sample
We have studied the time dependence of M?ssbauer absorption in a magnetically soft sample of Fe18Ni82 permalloy under the influence of a radio-frequency (r.f.) magnetic field.
      
First the hard tip is pushed into the soft sample surface, and thereafter it is gently retracted back.
      
Poisson's ratio was not calculated for the very soft sample, because of its imperfect cylinder shape under compression.
      
This makes it easy for the probe to touch the sample and damage the soft sample at the starting point.
      


The elasticity of soft sample,especially biomolecules,is one of the most attractive issues in the field of nano measurement with atomic force microscopy (AFM).However,present results on the compressive elasticity of soft sample,for instance height measurement,are far from the reality due to the inherent limitation of current AFM technology.For example,the measured height of dsDNA by tapping mode AFM (TM AFM) is close to 0.7~0.8nm in air,while the well accepted diameter of dsDNA is about 2 nm by the developed...

The elasticity of soft sample,especially biomolecules,is one of the most attractive issues in the field of nano measurement with atomic force microscopy (AFM).However,present results on the compressive elasticity of soft sample,for instance height measurement,are far from the reality due to the inherent limitation of current AFM technology.For example,the measured height of dsDNA by tapping mode AFM (TM AFM) is close to 0.7~0.8nm in air,while the well accepted diameter of dsDNA is about 2 nm by the developed vibrating mode scanning polarization force microscopy (VSPFM). The measured height of DNA molecule is about 1.3nm. A controllable ultra samll force is achieved in different modes of VSPFM, which can fulfill the requirement of investigating the elasticity of soft sample,especially biomolecules in general.

利用原子力显微镜技术 (AFM)研究柔软样品特别是生物分子的力学性质是当前生物物理的热点之一 ,但在柔软样品的压弹性 (例如高度测量 )方面的研究结果远离实际情况。一个相当重要的原因是因为目前AFM技术本身的限制。例如目前的AFM技术测量得到的空气中DNA分子的高度约 0 .7~ 0 .8nm ,而普遍接受的DNA分子的直径约2nm。利用我们发展的振动模式扫描极化力显微镜 (VSPFM)技术 ,测得在空气中双链DNA分子 (dSDNA)的高度在 1.3nm左右。研究表明 ,对比目前的AFM技术 ,VSPFM具有针尖与样品相互作用力极小、作用力可以精确控制、几种工作模式可以自由稳定切换等优势 ,非常适合于柔软样品 (尤其是生物分子 )的表面局域弹性性质 (如高度测量 )的研究

 
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