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
the overall sensitivity. For that reason, this way of operation is more difficult to implement and, until recently, most of the cantilever biosensors were based on the static mode.
Cantilever detection Modes of detection
In the optical lever scheme, the cantilever free end movement is detected by measuring the reflected laser beam displacement into a position-sensitive photodetector (PSD).
measure
electrical activity,
or, with a minute
amount of current,
you can stimulate a feeling
or... or a thought.
You can stimulate
a feeling?
Yes.
For example,
there was
this experiment
where an electrode
was planted
in the pleasure center
of a monkeys brain.
When the monkey
hit a button,
it sent a signal
to the electrode,
in effect exciting
the monkey sexually.
Youre kidding.
No.
Can you guess
They all wear the same ring.
AARON
(taps his chest lightly)
Her vibrations were unmistakable. I felt them quite clearly.
(sighs)
Strange to think after thirty years...I shall walk by the porch
and find the chair empty.
WOMAN AT THE TABLE
What of the child, Aaron...?
AARON
The childs life will take its inevitable turn. (pause) we
will watch and wait... and soon - our waiting will be over
INT
out of bed,...
..all cosy and warm.
Look, Elly...
the clinics booked to the hilt.
Weve got to pay the rent, you know.
- Ill take your patients.
- Oh, yes(!)
I want you to go.
Bev, youve got to try the movie star.
Shes unbelievable.
Dont worry, youll be all right.
Just do me.
(doorbell buzzes)
(door buzzes open)
What did you do to me last night?
(distant footsteps)
Im still vibrating all over