Vibration of molecules
1)dipole changes during vibrations and Rotations
적외선을 흡수하기 위하여 분자는 진동이나 회전운동의 결과로 dipole moment의 알짜 변화를 일으켜야 한다. 이러한 상황에서 복사선의 교류 전기장은 분자와 상호작용하고, 그 운동 중 한개의 진폭을 변화 시킨다. dipole moment는 두개의 전하중심 사이
나노복합재료연구실 ( Nano Composite Research Lab.)
1. Purpose of this study
■ Measurement of Young's modulus using sonic resonant test
■ Measurement of Young's modulus using beam bending test
2. Introduction
Young's modulus is one of the important materials properties that is related with the bonding force between atoms or ions in materials. That will give a cle
우주개발은 결코 우리가 감당하기 어려울 만큼 큰 투자가 요구되는 분야가 아니며 또한 선진국의 전유물로 방치해서도 안 될 분야이다. 우주개발은 기술측면에서 정보화시대의 핵심기술인 통신기술과 컴퓨터 기술에 직결되고 있으며 산업측면에서도 작년 제 2이동통신 사업선정에서 나타나듯이 ꡒ
- demonstrate that the film is of single monolayer thickness.
Fourier-transform infrared spectroscopy (FT-IR):
- measure the vibrational frequencies of bonds
- yield a pictures of relative order and fraction of chain defects
Scanning probe microscopes: STM;AFM;LFM
greatly assisted in the patterning of SAMs by analyzing the spatial distribution of adsorbates across a surface.
measured values obtained by thinking as a rigid body with the volume and mass of the ball were compared. The third experiment is a free vibration experiment. The experiment was conducted with a system consisting of one spring and a system in which two springs are connected in series. The measured value of the period was obtained through the time it takes for the object to reciprocate 10 tim